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2015-05-01T01:18:07Z amokr: Is there a way to force TCO on a loaded file other than compiling then loading the fasl?
2015-05-01T01:23:02Z amokr: nevermind. error in my understanding. (setq sb-ext:*evaluator-mode* :interpret)
2015-05-01T01:23:42Z amokr: Is there a way to selectively apply compilation/interpretation on specific functions?
2015-05-01T01:25:42Z nyef: clhs COMPILE
2015-05-01T01:25:42Z specbot: http://www.lispworks.com/reference/HyperSpec/Body/f_cmp.htm
2015-05-01T01:29:04Z amokr: Ah. Thanks!
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2015-05-01T11:49:03Z scymtym: Xof: seems to have worked as you predicted: https://ci.cor-lab.org/job/sbcl-master-compare-outputs/
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2015-05-01T12:38:44Z Xof: \o/
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2015-05-02T00:15:26Z drmeister: nyef: Are you online?
2015-05-02T00:21:22Z nyef: ... No?
2015-05-02T00:21:36Z nyef: drmeister: What's up?
2015-05-02T00:21:56Z drmeister: Hi.
2015-05-02T00:22:37Z drmeister: I'm looking at disassembled output from code that clang generates to traverse a list of CONSes
2015-05-02T00:22:46Z drmeister: I've implemented tagged pointers.
2015-05-02T00:23:11Z drmeister: I followed beach's advice and I have a tag for cons cells 0x3
2015-05-02T00:23:24Z drmeister: And another tag for OTHER objects on the heap 0x1
2015-05-02T00:23:33Z drmeister: This leaves 0x0 in the low bit for FIXNUMs
2015-05-02T00:24:30Z drmeister: So I'm looking at the disassembled output for a loop that traverses the list and dereferences each CONS cell but I don't see anything that looks like an offset instruction that would subtract 0x3 from the pointer value.
2015-05-02T00:24:49Z drmeister: Can I paste a few lines of C++ code and disassembled x86 code?
2015-05-02T00:25:10Z drmeister: Or rather, would you have a few minutes to look at it with me?  Or is x86 not your thing?
2015-05-02T00:25:18Z nyef: Via lisppaste or similar, sure.
2015-05-02T00:25:32Z drmeister: Ok, hang on - first the C++ code.
2015-05-02T00:26:07Z drmeister: https://www.irccloud.com/pastebin/FURARo7o
2015-05-02T00:26:14Z drmeister: Is that readable to you?
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2015-05-02T00:26:59Z drmeister: This is using a C++11 "ranged for" with the help of SAL9000 we wrote a C++ iterator that is very efficient (no calls in the disassembled output).
2015-05-02T00:27:57Z drmeister: Here's the disassembled output:
2015-05-02T00:28:01Z drmeister: https://www.irccloud.com/pastebin/8bi9y8wt
2015-05-02T00:29:18Z drmeister: I think I'm looking for the t = c->_Car   which would involve a movXX -0x3(%something), %something
2015-05-02T00:30:23Z drmeister: On line 16 is one call, that's to downcast t to a FIXNUM (which is currently on the heap).  The next thing I'll do is implement immediate fixnums.
2015-05-02T00:30:36Z nyef: So, your core loop is from lines 12 through 24?
2015-05-02T00:31:41Z drmeister: Line 22,23 is checking for the 0x3 CONS tag in %rax
2015-05-02T00:31:49Z nyef: Which is a MOVQ (8-3)(%RBX), %RAX.
2015-05-02T00:31:55Z nyef: (line 12)
2015-05-02T00:32:19Z drmeister: I think 12 to 29.   I am looping over the list 0xdead times.
2015-05-02T00:32:34Z nyef: Then you have, at line 20, a MOVQ (16-3)(%RBX), %RBX.
2015-05-02T00:33:46Z drmeister: That had not occurred to me.   MOVQ (16-3)(%RBX),%RBX - what does that mean?
2015-05-02T00:34:02Z nyef: Looks like your conses have an extra QWORD at the start, they're not just two words in memory?
2015-05-02T00:34:20Z drmeister: They have a vtable.
2015-05-02T00:34:24Z nyef: That'd do.
2015-05-02T00:34:31Z drmeister: This is C++ afterall - everything get's a vtable.
2015-05-02T00:34:36Z drmeister: gets
2015-05-02T00:34:49Z drmeister: I'm kidding.  But I do use virtual functions.
2015-05-02T00:35:09Z nyef: So at -3(%rbx) is the vtable. The first slot after that is the CAR, at 8-3(%rbx), since you have 8-byte pointers...
2015-05-02T00:35:30Z drmeister: I see - oh man - that is excellent.  Thank you for point that out!
2015-05-02T00:35:38Z drmeister: pointing that out.
2015-05-02T00:36:16Z drmeister: So the untagging operations are single instructions - that's what I was hoping to see.
2015-05-02T00:36:53Z nyef: Not even single instructions, they're folded into the addressing calculation for accessing fixed slots within your objects, as it should be.
2015-05-02T00:37:01Z drmeister: Yes, I see now.
2015-05-02T00:37:43Z drmeister: Here's an interesting aside.   beach suggested having a tag for CONS and another tag for OTHER objects.
2015-05-02T00:37:55Z drmeister: I guess SBCL does something similar and has a tag for LIST?
2015-05-02T00:38:24Z drmeister: It's slightly more expensive to check for the CONS tag than it is to just keep comparing the CONS pointer to NIL.
2015-05-02T00:39:20Z drmeister: It takes an ANDQ $0x7, %rax  CMPQ $0x3, %rax  to test for the CONS tag.
2015-05-02T00:39:30Z drmeister: But just one instruction to compare two register to each other.
2015-05-02T00:39:50Z drmeister: Is there any single instruction for testing the bottom two bits of a word?
2015-05-02T00:40:21Z drmeister: I can look that up.  If it exists, then there is the challenge to get C++ to use it.
2015-05-02T00:40:36Z nyef: IIRC, any single instruction for testing said bits requires specific bit patterns to be tested for. /-:
2015-05-02T00:40:50Z nyef: SBCL has some crazy games with its lowtag scheme.
2015-05-02T00:41:25Z drmeister: But I'm bumping up against the limits of efficiency here - correct?  You can't make a list traversal any faster than a handful of instructions with no calls - right?
2015-05-02T00:42:04Z nyef: There's a section in the SBCL internals manual titled "The NIL-cons Hack".
2015-05-02T00:43:02Z nyef: But yeah, you're pretty close to the minimum, and possibly going to be losing out due to cache effects anyway.
2015-05-02T00:44:00Z drmeister: Write the cache there's always the cache
2015-05-02T00:44:24Z drmeister: Right - trying to use dictation on phone
2015-05-02T00:45:08Z nyef: I tried that with a memo to myself once. It got so badly garbled that I couldn't understand what it was supposed to mean, and forgot what I was trying to say in the first place. /-:
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2015-05-02T00:45:48Z drmeister: Computers - what a load a crap they are.
2015-05-02T00:46:26Z drmeister: Ok, thanks - I think I understand now what's going on.  That was very helpful and illuminating.
2015-05-02T00:53:30Z nyef: You're welcome. And good luck. (-:
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2015-05-02T05:05:43Z evil``: hey
2015-05-02T05:05:46Z evil``: guys
2015-05-02T05:06:56Z evil``: no body?
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2015-05-02T05:09:38Z bsd-duck: help
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2015-05-02T05:10:57Z bsd-duck: nobody?
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2015-05-02T07:41:19Z flip214_: you should ask a specific question, so that people can answer it.
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2015-05-02T08:31:21Z Xof: scymtym: so I looked at your URL, and it says "FAILURE" not "SUCCESS" :-(
2015-05-02T08:31:51Z Xof: wait, no it doesn't
2015-05-02T08:32:03Z Xof: my browser converted your URL into one that I had previously visited
2015-05-02T08:32:20Z scymtym: the three most recent ones have been successes
2015-05-02T08:32:43Z Xof: ok, but it does still say that the cold cores differ
2015-05-02T08:33:01Z Xof: e.g. https://ci.cor-lab.org/job/sbcl-master-compare-outputs/220/console
2015-05-02T08:33:24Z scymtym: yes, just saw that
2015-05-02T08:33:37Z scymtym: so the script must be wrong
2015-05-02T08:34:12Z Xof: though it does look like the 64-bit build is OK
2015-05-02T08:34:44Z scymtym: seems that way
2015-05-02T08:34:57Z Xof: so, a qualified "yay" then
2015-05-02T08:35:01Z scymtym: :)
2015-05-02T08:35:02Z Xof: and more work to do :)
2015-05-02T08:35:20Z scymtym: the build results are available from the upstream job, if you want to investigate
2015-05-02T08:35:30Z scymtym tries to fix the shell script
2015-05-02T08:36:49Z Xof: having diff -ur {host1,host2}/obj/from-xc in the script would be helpful for this kind of thing
2015-05-02T08:39:03Z Xof: though clearly I'm going to have to learn how to build 32-bit binaries again
2015-05-02T08:43:56Z scymtym: does that replace diffing the cores or should it be done in addition?
2015-05-02T08:47:12Z Xof: in addition
2015-05-02T08:47:29Z Xof: if the cores are identical, the fasls (probably) will be too
2015-05-02T08:47:36Z Xof: but if they're not, it can help pinpoint the problem quickly
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2015-05-02T08:48:37Z Xof: huh.  --arch=x86
2015-05-02T08:48:41Z Xof: who would have thought?
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2015-05-02T08:52:04Z scymtym: thanks
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2015-05-02T09:07:31Z scymtym: Xof: https://ci.cor-lab.org/job/sbcl-master-compare-outputs/226/console
2015-05-02T09:08:00Z scymtym: is that what you had in mind?
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2015-05-02T10:35:32Z Xof: yes!
2015-05-02T10:35:36Z Xof: gah, that's a lot of differences
2015-05-02T10:35:46Z Xof sees "looking at fasls" in his future
2015-05-02T10:37:27Z Xof: ebcdic
2015-05-02T10:37:37Z Xof: clearly we must fix ebcdic cross-compilation
2015-05-02T10:37:50Z Xof: thanks!
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2015-05-02T14:12:17Z flavioc: hi. I'm trying to port SBCL and I would like to understand the parameters to !gencgc-space-setup
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2015-05-02T14:12:45Z flavioc: what's the purpose of small-spaces-start? is that read-only memory? how about dynamic-space-start, is that some position on the heap?
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2015-05-02T14:17:25Z nyef: flavioc: You're porting SBCL? What to?
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2015-05-02T14:17:58Z flavioc: nyef: hurd
2015-05-02T14:18:28Z nyef: Oh, wow.
2015-05-02T14:20:12Z nyef: This is... an unfamiliar macro. I think that it was added since the last time I messed with gencgc space layouts.
2015-05-02T14:20:44Z nyef: Looks like the "small spaces" are the read-only, static, and (optionally) linkage-table spaces.
2015-05-02T14:21:36Z nyef: read-only space is for things like assembly-routines and other things that don't point to the main heap.
2015-05-02T14:21:43Z flavioc: I wonder how the constants in src/compiler/x86/parms.lisp were computed for each different OS
2015-05-02T14:21:48Z nyef: static space is for things that CAN point into the main heap, but don't move.
2015-05-02T14:22:11Z nyef: linkage-table space is for small assembly stubs used for dynamic linking.
2015-05-02T14:23:03Z nyef: And dynamic-space-start is the base of the main heap.
2015-05-02T14:24:16Z nyef: The values for where to put the various heap spaces on various operating systems were largely worked out by trial and error.
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2015-05-02T14:29:22Z nyef: ... Does HURD run on MIPS?
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2015-05-02T14:32:00Z flavioc: not at all
2015-05-02T14:32:54Z flavioc: only runs on x86
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2015-05-02T18:49:26Z Xof: scymtym: ok, it was easy
2015-05-02T18:49:39Z Xof: the next builds should pass for real :-)
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2015-05-02T20:35:17Z scymtym: Xof: great
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2015-05-03T11:51:36Z ams: with SBCL 1.2.10.34-881c95a, (defun foo (size &rest keys &key double &allow-other-keys) (let ((v (apply #'make-array size :allow-other-keys t keys))) (if double (concatenate (type-of v) v v) v))), one gets "The length requested (8) does not match the type restriction in (SIMPLE-VECTOR 4).", when one should according to the spec get #(A B C D A B C D))
2015-05-03T11:53:48Z Xof: the spec is probably wrong
2015-05-03T11:54:32Z Xof: is that an actual example from the spec, or your interpretation?
2015-05-03T11:54:43Z ams: actual example
2015-05-03T11:54:58Z ams: (yeah yeah, examples are not normative .. bla bla :-)
2015-05-03T11:55:13Z Xof: indeed, examples are not normative
2015-05-03T11:56:06Z ams: but to my reading it should work.
2015-05-03T11:56:13Z Xof: why?
2015-05-03T11:56:19Z Xof: (type-of v) returns (simple-vector 4)
2015-05-03T11:56:46Z Xof: when you do (concatenate '(simple-vector 4) #(a b c d) #(a b c d)) you are asking concatenate to return a (simple-vector 4) made up of 8 elements
2015-05-03T11:57:10Z Xof: and CLHS Concatenate says "An error of type type-error should be signaled if result-type specifies the number of elements and the sum of sequences is different from that number.
2015-05-03T11:57:13Z Xof: "
2015-05-03T11:57:17Z ams: cltl has the same language.
2015-05-03T11:57:26Z ams: and example.
2015-05-03T11:57:39Z Xof: that's not a reading, that's repeated assertion
2015-05-03T11:57:54Z ams: ok, you clearly are not interested in standard conformance.
2015-05-03T11:57:58Z ams: 13:57 /ignore Xof
2015-05-03T11:58:29Z Xof: well at least now I know ams' timezone
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2015-05-03T12:03:53Z jsnell_: "the sum of sequences", interesting spec typo there
2015-05-03T12:04:29Z jsnell_: but yes, it seems clear that signaling an error there is valid
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2015-05-03T12:06:40Z rszeno: why spec typo?
2015-05-03T12:10:18Z Xof: it's missing "the length of"
2015-05-03T12:10:19Z jsnell_: what does "sum of sequences" even mean? you can't add sequences together. what's meant is something like the "sum of the lengths of sequences"
2015-05-03T12:10:51Z rszeno: yes, ok
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2015-05-03T13:15:25Z christoph_debian: hm how are my chances of seeing sbcl on ppc64le ?
2015-05-03T13:15:35Z christoph_debian: aeh ppc64el
2015-05-03T13:15:48Z christoph_debian: probably needs quite some porting?
2015-05-03T13:16:11Z nyef: christoph_debian: Might be fairly minor porting, actually.
2015-05-03T13:16:42Z nyef: Both the MIPS and ARM backends run on big or little endian machines, at least in theory.
2015-05-03T13:16:55Z christoph_debian: well there seems to only be 32bit powerpc so far
2015-05-03T13:17:02Z nyef: Ah, okay.
2015-05-03T13:17:04Z nyef: Fair point.
2015-05-03T13:17:35Z nyef: You could at least get ppc32el working if that's a valid architecture.
2015-05-03T13:17:43Z p_l: nyef: it is
2015-05-03T13:17:44Z christoph_debian: just wondering so far .. there seems to be quite some active community behind that architecture at least
2015-05-03T13:17:57Z p_l: you can even get cheapo PPC le VPS
2015-05-03T13:18:43Z nyef: Was stassats looking into doing a ppc64 port, or was that someone else?
2015-05-03T13:21:10Z nyef: I have a big-endian PPC64 machine, so I could help out a bit on that side.
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2015-05-03T13:28:49Z christoph_debian: http://openpower.ic.unicamp.br/minicloud/ also gives free vms for development
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2015-05-03T13:58:47Z sdemarre: hello, I have a problem with inverse trig functions on win32
2015-05-03T13:59:03Z sdemarre: more specifically, (acos -1) and (acos 1) is giving a division by zero
2015-05-03T13:59:07Z sdemarre: only on win32
2015-05-03T13:59:11Z sdemarre: win64 works
2015-05-03T13:59:13Z sdemarre: linux works
2015-05-03T13:59:57Z sdemarre: should I be reporting this somehwere ?
2015-05-03T14:00:09Z sdemarre: somewhere else than here, I mean
2015-05-03T14:01:48Z sdemarre: I checked the sourcecode, I see that there is some win32 specific code there.
2015-05-03T14:02:22Z sdemarre: according to the commit comment, it had something to do with the compiler toolchain not supporting those correctly (back in 2008)
2015-05-03T14:02:51Z sdemarre: I'm surprised nobody encountered this issue before, so I might be doing something stupid, but I don't know what
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2015-05-04T18:52:39Z flip214: quite unexpectedly a new SBCL came onto my box! thanks, christoph_debian!
2015-05-04T18:54:04Z christoph_debian: :-)
2015-05-04T18:54:32Z christoph_debian: moved stuff to unstable post-jessie-release and well I could have reuploaded the 1.2.8 but ;-)
2015-05-04T19:01:59Z flip214: never mind the old stuff. cutting edge it is!
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2015-05-04T20:37:02Z slyrus: so I've got this (one) box on which the sb-concurrency tests fail/hang. It's a pretty beefy box (6 cores/12 threads, 16 GB RAM) but the load spikes when running the concurrency tests and things timeout/fail. Any suggestions for how to go about debugging this?
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2015-05-04T22:45:18Z |3b|: slyrus: first thing i'd try is running individual tests and see if one of them fails reliably, or if it is only when running whole thing
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2015-05-05T17:58:14Z oleo: why does (SB-C::INTERVAL-BOUNDED-P
2015-05-05T17:58:14Z oleo:  (SB-C::INTERVAL-CLOSURE (FIRST (SB-C::INTERVAL-SPLIT 5 (SB-C::MAKE-INTERVAL :LOW 0 :HIGH 10)))) 'ABOVE) fail ?
2015-05-05T18:01:07Z stassats: why are you doing that?
2015-05-05T18:01:45Z oleo: are you going to answer me or not ?
2015-05-05T18:02:23Z Bike: they're compiler internals, it usually helps to have some context with those
2015-05-05T18:02:33Z oleo: it was just an ordinary test.....
2015-05-05T18:02:42Z oleo: and ecase fails
2015-05-05T18:02:48Z stassats: well, it does tell you why it fails
2015-05-05T18:04:39Z Bike: sb-c::above works. what kind of ordinary test? i don't think there's anything like that in the sbcl suite
2015-05-05T18:05:53Z oleo: ooh
2015-05-05T18:06:17Z oleo: ok thank you
2015-05-05T18:06:55Z oleo: it's interval arithmetic from srctran.lisp
2015-05-05T18:07:02Z oleo: i just wanted to have a look at that
2015-05-05T18:07:20Z stassats: have you heard about in-package?
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2015-05-05T18:35:30Z stassats: anyway, it now says "Wanted one of (SB-C::ABOVE SB-C::BELOW SB-C::BOTH)."
2015-05-05T18:38:12Z oleo: Bike already gave the answer....
2015-05-05T18:38:32Z oleo: the symbol is supposed to be in the sb-c package .....
2015-05-05T18:38:47Z oleo: since i didn't tag it with the package-name.....
2015-05-05T18:38:51Z oleo: i got the error
2015-05-05T18:39:16Z stassats: the error was pretty obvious
2015-05-05T18:39:28Z oleo: or like you said you have to extend to the package namespace by doing a (in-package :sb-c)
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2015-05-05T18:40:02Z stassats: that's a weird way to say "change the package"
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2015-05-05T18:40:12Z oleo: thing is i tagged all else, but for some reason i forget it when it comes to just symbols other than functions or so...
2015-05-05T18:41:39Z oleo: and (use-package :sb-c) was no use, cause nothing was exported.....
2015-05-05T18:41:52Z oleo: i'd have todo the imports myself.....
2015-05-05T18:42:05Z stassats: don't do that
2015-05-05T18:42:09Z oleo: if i weren't to change the package i mean
2015-05-05T18:42:18Z stassats: don't do anything with that code
2015-05-05T18:42:28Z oleo: ?
2015-05-05T18:42:53Z stassats: ¿
2015-05-05T18:43:00Z oleo: i'm not doing anything with that code....
2015-05-05T18:43:17Z oleo: but why would you say that ?
2015-05-05T18:44:50Z stassats: because it's not for you
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2015-05-05T19:07:11Z oleo: ok
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2015-05-05T20:08:23Z vi1: hi
2015-05-05T20:09:50Z vi1: trying to compile usocket on win64 sbcl-1.2.11
2015-05-05T20:10:35Z vi1: got:
2015-05-05T20:10:38Z vi1: ASDF could not load usocket because
2015-05-05T20:10:38Z vi1: COMPILE-FILE-ERROR while
2015-05-05T20:10:38Z vi1: compiling #<CL-SOURCE-FILE "usocket" "backend" "sbcl">.
2015-05-05T20:10:38Z vi1: COMPILE-FILE-ERROR while
2015-05-05T20:10:38Z vi1: compiling #<CL-SOURCE-FILE "usocket" "backend" "sbcl">
2015-05-05T20:11:09Z vi1: but there is no indication of what the ERROR is
2015-05-05T20:11:23Z vi1: any idea?
2015-05-05T20:11:37Z Xach: It is usually in the compilation output, prefixed by " WARNING:" or "ERROR:"
2015-05-05T20:12:01Z vi1: None
2015-05-05T20:12:23Z Xach: vi1: How did you try to compile it?
2015-05-05T20:12:33Z vi1: (require :usocket)
2015-05-05T20:12:51Z vi1: or (asdf:load-system)
2015-05-05T20:12:55Z vi1: does not matter
2015-05-05T20:14:10Z Xach: vi1: can you paste the output you see after you use asdf:load-system? i can't easily try it myself on windows, but maybe i can spot something in the compilation output.
2015-05-05T20:14:16Z Xach: paste.lisp.org is a good place to paste
2015-05-05T20:16:17Z vi1: a moment
2015-05-05T20:17:17Z vi1: http://paste.lisp.org/display/147880
2015-05-05T20:17:48Z Xach: vi1: actually, there is a WARNING: there
2015-05-05T20:17:55Z Xach: ; caught WARNING:
2015-05-05T20:17:56Z Xach: ;   SB-BSD-SOCKETS-INTERNAL::FD->HANDLE has been deprecated as of SBCL 1.2.10.
2015-05-05T20:18:02Z Xach: that is why it fails to build
2015-05-05T20:18:14Z vi1: but it's warn
2015-05-05T20:18:24Z Xach: vi1: that is enough to make it not build.
2015-05-05T20:18:57Z vi1: hmm
2015-05-05T20:19:13Z vi1: how to force it to ignore
2015-05-05T20:20:50Z Xach: usocket 0.6.2 is out now, but i don't think it has a fix for this issue
2015-05-05T20:21:52Z Xach: vi1: one option is (setf asdf:*compile-file-warnings-behavior* :ignore)
2015-05-05T20:23:51Z vi1: works!
2015-05-05T20:23:59Z vi1: thanks
2015-05-05T20:27:21Z vi1: I did not notice it before, asdf always was so strict?
2015-05-05T20:27:34Z nyef: I'd recommend wrapping a LET on that around your build operation, rather than setfing it globally.
2015-05-05T20:28:18Z nyef: After all, there's good reason for it to pitch a fit if there's a full WARNING when building a file.
2015-05-05T20:28:55Z vi1: nyef: I see
2015-05-05T20:30:13Z Xach: vi1: asdf has always behaved like that with sbcl.
2015-05-05T20:30:24Z Xach: vi1: usocket should be updated
2015-05-05T20:31:01Z vi1: understood
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2015-05-05T21:04:44Z stassats: usocket does something really strange on windows
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2015-05-05T21:17:23Z stassats: pull requested removal of fd->handle
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2015-05-05T21:19:41Z Xach: thanks
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2015-05-06T00:46:14Z hjs: I'm trying to look into how SBCL executes some code.  Is it possible in the debugger to step into SBCL code.  For example, is it possible to execute something like (mapcar #'* a b), and step through how mapcar is implemented?
2015-05-06T00:46:46Z Bike: probably easiest just to go to mapcar's definition with M-.
2015-05-06T00:46:49Z stassats: not really
2015-05-06T00:47:53Z hjs: Yes, I've gone to the code with M-., but I'd really like to step through it to see which underlying functions are getting hit.
2015-05-06T00:49:26Z stassats: none?
2015-05-06T00:51:12Z Bike: yeah, the source transform you can see with M-. probably takes out the actual call?
2015-05-06T00:51:14Z hjs: For example, map applies %map, and %map has some special purpose code for vectors, (like calling %map-to-vector), so I want to see exactly which code I'm hitting to help explain why map on vectors is so much slower than a dotimes loop.
2015-05-06T00:52:27Z stassats: because it doesn't know its type
2015-05-06T00:54:20Z hjs: I'm talking about code where all the pieces are carefully typed, as in http://paste.lisp.org/display/147883
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2015-05-06T00:55:36Z stassats: (EQ (length a) (length b)) is wrong, fwiw
2015-05-06T00:56:36Z hjs: I should have taken that out - it stuck around from the code I was mucking with.
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2015-05-06T00:59:46Z hjs: Pasted in the faster code on the above paste.  It's over 10x faster than using map, yet map-into is about as fast (as the faster code).
2015-05-06T01:00:56Z stassats: so, yes, it's slow, do you want to know how to make map faster in your case or you're just wondering?
2015-05-06T01:01:20Z stassats: if the former and you will submit a patch, i can tell you what to do
2015-05-06T01:01:48Z hjs: Yes, I was hoping to figure it out & submit a patch.
2015-05-06T01:02:48Z stassats: so, you need to write a better transform for %map
2015-05-06T01:03:20Z stassats: first it'll need to determine the result length
2015-05-06T01:03:26Z hjs: Which is why I wanted to step through the implementation  to see how it was working.
2015-05-06T01:03:50Z stassats: no, you wouldn't see anything
2015-05-06T01:04:21Z hjs: By transform, you mean reimplementing %map with better subcases, or something having to do with the optimizer?
2015-05-06T01:04:42Z stassats: just look at the code, it pushes results into a list and then coerces it to the requested type
2015-05-06T01:08:30Z stassats: i will fix %map, just not tonight
2015-05-06T01:08:45Z stassats: unless you beat me to it
2015-05-06T01:09:09Z hjs: That's what I was finding confusing, because it looks like %map will ultimately call the internal slower-map on the type, which seems like it should call %map-to-vector, which looks like it creates a sequence & then iterates.
2015-05-06T01:09:44Z stassats: there's no %map function involved in your code
2015-05-06T01:10:31Z Bike: the %map transform for this uses build-sequence-iterator, yes?
2015-05-06T01:10:42Z hjs: What do you mean?  (map ...) calls (apply #'%map ...), so how doesn't it hit %map?
2015-05-06T01:11:10Z Bike: there are transforms on the calls, you should see them in M-.
2015-05-06T01:11:13Z stassats: you're not calling MAP either
2015-05-06T01:11:56Z Bike: rather than calling map, the compiler uses the function in (deftransform map ...) and gets a form like (%map ...), and then that's transformed similarly
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2015-05-06T01:13:30Z stassats: it conses a list and coerces, doing better than that will be trivial
2015-05-06T01:14:08Z hjs: So you're saying that the optimizer is catching it and conses up the results, but if it fell through to %map then it'd be faster?
2015-05-06T01:14:18Z stassats: no
2015-05-06T01:14:28Z hjs: So what's going on then?
2015-05-06T01:14:59Z stassats: where?
2015-05-06T01:15:19Z Bike: Can you see the deftransforms in M-. or no? They should be in seqtran.lisp if you can't for some reason.
2015-05-06T01:15:56Z hjs: Yes, I'm looking at (deftransform map ...).  So what's a deftransform?
2015-05-06T01:16:24Z stassats: a fancy macro
2015-05-06T01:16:57Z hjs: So my code that calls map actually gets expanded by this macro?
2015-05-06T01:16:59Z Bike: whatever the deftransform returns, if there's not some errory signaly thing, will be used by the compiler in the stead of the original form, like a compiler macro but with more information
2015-05-06T01:17:34Z Bike: yeah should be, you can see in this case the deftransform map ought to return what it calls 'bare', which is a %map call
2015-05-06T01:17:51Z stassats: didn't you even disassemble the function?
2015-05-06T01:19:04Z hjs: I've disassembled a few other functions, but didn't find it illuminating - I haven't figured out how to read the dissassembed code yet.
2015-05-06T01:19:28Z stassats: it'd be pretty clear that it calls no map or %map
2015-05-06T01:21:02Z stassats: and you don't get better at reading it by not reading it
2015-05-06T01:25:20Z hjs: I did say "yet".
2015-05-06T01:26:16Z stassats: what functions are called is the first obvious thing
2015-05-06T01:26:39Z stassats: then whether something is allocated
2015-05-06T01:31:19Z hjs: I see a lot of alloc_tramp comments before CALLs.  Are those allocations?
2015-05-06T01:32:08Z stassats: those are for when there's no more space in the current allocation region
2015-05-06T01:32:13Z stassats: not allocations themselves
2015-05-06T01:33:33Z hjs: Is the allocation done inline, with notations like thread.alloc-region?
2015-05-06T01:33:44Z stassats: yes
2015-05-06T01:54:44Z hjs: BTW, sbcl is about 2x faster than ccl.
2015-05-06T01:54:59Z hjs: That is, on this vectorized arithmetic.
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2015-05-06T02:03:12Z hjs: Anyway, thanks for the help.
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2015-05-06T02:03:56Z stassats: thanks for pointing out that it's embarrassingly slow
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2015-05-16T23:32:23Z akkad: is it fair to say that arm has had less optimization than x86?
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2015-05-18T09:16:38Z luis: sb-cltl2:macroexpand-all doesn't macroexpand multiple-value-bind. That's a bug right?
2015-05-18T09:20:09Z |3b|: seems like one to me
2015-05-18T09:22:02Z |3b|: doesnt expand m-v-setq either
2015-05-18T09:27:36Z |3b|: or at least it doesn't return the expansion, since it still errors if the arguments are wrong
2015-05-18T09:32:11Z |3b|: looks like sb-walker handles those specially for some reason instead of using the macro definition
2015-05-18T09:35:10Z |3b|: also LAMBDA
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2015-05-18T09:48:26Z Xof: it's (probably) easier to treat multiple-value-bind as its own special form in a code walker rather than having to recognize a particular use of multiple-value-call as effectively a multiple-value-bind
2015-05-18T09:48:38Z Xof: it's probably wrong for macroexpand-all, though
2015-05-18T10:06:28Z loke: SBCL sometimes decides to render backquote forms in a strange way. Like `(x . "foo") as `(x ,@"foo")
2015-05-18T10:06:50Z loke: (this happens when the form is the result of evaluating a double-nester backquote form
2015-05-18T10:07:23Z loke: Obviously, the result is equivalent, but when macroexpanding it's a bit confusing when the forms change appearance
2015-05-18T10:19:37Z Xof: what sbcl version are you using?
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2015-05-18T10:28:19Z loke: "Version 1.11-dev-r16390-trunk  (LinuxX8664)"
2015-05-18T10:28:49Z loke: oops
2015-05-18T10:29:01Z loke: "1.2.10.33-d084c74"
2015-05-18T10:29:09Z loke: (the previous one was from my CCL session :-) )
2015-05-18T10:30:02Z loke: I'
2015-05-18T10:30:06Z loke: I'll give you a test case
2015-05-18T10:30:38Z loke: (let ((a "foo")) ``(:x . ,,a))
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2015-05-18T19:50:43Z jjkola: hi
2015-05-18T19:50:59Z stassats: hello
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2015-05-18T21:08:14Z jjkola: night
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2015-05-18T22:47:12Z stassats: that was an interesting discussion
2015-05-18T22:57:19Z flip214: a proposition, a debate, and a conclusion. what more do you expect?
2015-05-18T23:00:05Z stassats: name calling and a fist fight
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2015-05-18T23:06:20Z flip214: a mud girl fight with fists? and naming is one of the hard problems in CS, so you might be out of luck on that too.
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2015-05-18T23:20:40Z stassats: flip214: i though it was the only problem in CS
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2015-05-19T00:48:03Z flip214: stassats: the other hard one is cache invalidation. http://martinfowler.com/bliki/TwoHardThings.html
2015-05-19T00:54:22Z |3b|: stassats: is https://bugs.launchpad.net/sbcl/+bug/1393740 fixed by 7aa33c0b1c6498fe034450c79cf96843c44d0f6b (Do not cons when calling foreign functions. )?
2015-05-19T00:54:53Z |3b| had been patching it locally, not sure if i should patch somewhere else now or if it isn't needed
2015-05-19T00:55:09Z stassats: maybe
2015-05-19T00:55:35Z |3b| supposes i probably should have just tried the test case
2015-05-19T00:55:46Z stassats: even though your suggestion is absolutely correct, it resulted in poorer backtraces on windows
2015-05-19T00:56:07Z stassats: that's why i didn't use it, it's probably broken in more than one place
2015-05-19T00:56:22Z |3b|: hadn't noticed anything worse, what problems were you seeing?
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2015-05-19T00:56:48Z stassats: disappearing frames
2015-05-19T00:56:52Z |3b|: ah
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2015-05-19T01:00:43Z stassats: yeah, the frames do disappear now
2015-05-19T01:01:05Z stassats: (log 0d0)
2015-05-19T01:02:36Z stassats: i guess i will have to find that second place
2015-05-19T01:05:19Z |3b|: yeah, that does look worse :/
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2015-05-19T01:08:36Z stassats: which is funny, cause saving fp and pc are supposed to prevent exact this thing
2015-05-19T01:09:29Z stassats: oh hell, and it returns me to another problem, not preserving the fp state
2015-05-19T01:10:14Z stassats: (log 0d0) => error (log 0d0) => infinty
2015-05-19T01:10:16Z joshe: context switching never ceases to surprise and confuse
2015-05-19T01:10:18Z stassats: i had something almost reverse engineered for this, but now i forgot everything about it
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2015-05-19T01:16:09Z stassats: actually, fp-and-pc are not saved in %log
2015-05-19T01:16:18Z stassats: when i recompile it, i get the frames
2015-05-19T01:19:49Z stassats: so, just adding a declaration to the def-math-rtn on windows should solve that
2015-05-19T01:21:41Z stassats: to be determined later
2015-05-19T01:21:44Z stassats: (log 0d0) is bad on linux too, but it doesn't crumble
2015-05-19T01:24:00Z stassats: |3b|: and closing your bug, it's fixed indeed
2015-05-19T01:25:23Z stassats: i think i had a better test case then
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2015-05-19T01:27:30Z stassats: i should write things down
2015-05-19T01:27:40Z |3b|: cool, thanks for checking. I'll try to watch for other places where backtrace disappears
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2015-05-19T01:31:16Z stassats: can't reproduce where it actually made things worse, but i don't remember the exact test-case
2015-05-19T01:31:28Z stassats: so, (log 0d0) probably always was bad
2015-05-19T01:31:52Z stassats: i need to see what linux does with fomit-prame-pointer again
2015-05-19T01:36:28Z stassats: fomit frame pointer on linux just eats the parent frame
2015-05-19T01:43:07Z stassats: even saving fp and pc doesn't help here
2015-05-19T01:43:25Z stassats: something to investigate
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2015-05-19T03:33:14Z akkad: lw 60s to scrypt 100MB file, sbcl 6s. on x86 on arm I get 42s LW and 39s sbcl. probably io bound
2015-05-19T03:55:30Z loke: Anyone here?
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2015-05-19T11:13:15Z francogrex: hi I am trying to use sbcl & cl+j (jvm/jni) on windows it goes mostly fone but sometimes it crashes with such a message: http://paste.lisp.org/display/148400 (here when I was closing a java swing window... could this be related to sbcl (threads) or the jvm itself?
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2015-05-19T16:34:13Z jjkola: hi
2015-05-19T16:48:05Z scymtym: jjkola: hi
2015-05-19T16:49:12Z scymtym: assuming you want to report the problem mentioned in #lisp, could you describe would you did, what you expected to happen and what the actual result was?
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2015-05-19T17:00:58Z jjkola: ok
2015-05-19T17:01:01Z jjkola: one moment
2015-05-19T17:01:08Z scymtym: sure
2015-05-19T17:03:00Z jjkola: code sample at http://paste.lisp.org/+36J0
2015-05-19T17:04:35Z scymtym: thanks
2015-05-19T17:04:52Z scymtym: and the unexpected behavior is a redefinition-warning, right?
2015-05-19T17:04:56Z jjkola: I wanted to muffle asdf version warnings so I redefined the version parsing function and expected to get no warnings as I had muffled all notes and warnings but I still got re-definition warning
2015-05-19T17:05:56Z jjkola: I also tried those declaim without eval-when but it didn't make any difference
2015-05-19T17:06:14Z jjkola: s/declaim/declaim lines/
2015-05-19T17:07:05Z scymtym: just to make sure: there no fasl-file corresponding to the script?
2015-05-19T17:07:10Z scymtym: *there is
2015-05-19T17:08:07Z jjkola: none that I know of, but I can rename the file and try once more to be sure
2015-05-19T17:08:36Z scymtym: probably not the problem. i just wanted to rule that out
2015-05-19T17:08:39Z jjkola: still same
2015-05-19T17:10:35Z jjkola: still got that style-warning about re-definition
2015-05-19T17:11:10Z jjkola: brb
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2015-05-19T17:24:50Z jjkola: back
2015-05-19T17:25:21Z scymtym: jjkola: (setf sb-c::*muffled-warnings* '(or sb-ext:compiler-note warning)) works. investigating why the declaration does not
2015-05-19T17:26:20Z jjkola: ok
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2015-05-19T17:29:43Z jjkola: tried that setf call and it did muffle the warnings for me also
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2015-05-19T17:31:40Z scymtym: apparently, something like (proclaim '(sb-ext:muffle-conditions sb-ext:compiler-note warning)) will only work for COMPILE-FILE, not for LOAD
2015-05-19T17:32:36Z scymtym: but the variable is actually exported as SB-EXT:*MUFFLED-WARNINGS*, so you can just use it
2015-05-19T17:34:10Z scymtym: e.g. you can use (let ((sb-ext:*muffled-warnings* '(or sb-ext:compiler-note warning))) (load script)) in .sbclrc
2015-05-19T17:34:19Z scymtym: although that may muffle a bit much
2015-05-19T17:35:22Z stassats: just save cores
2015-05-19T17:36:50Z scymtym: FYI: sb-ext:*muffled-warnings* is documented in section "Customization Hooks for Users" of the manual
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2015-05-19T17:38:20Z jjkola: ok. thanks
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2015-05-19T19:59:14Z jjkola: night
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2015-05-20T13:34:05Z fe[nl]ix: is there a way to relink the runtime binary, adding a static library to it ?
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2015-05-20T13:48:09Z p_l: fe[nl]ix: iirc there was, but there might have been some work involved in order to link the symbols (looked into it *looooong* time ago)
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2015-05-21T16:52:49Z stassats: how come (print 4622945017495814144) gets constantized, but (print 12d0) doesn't?
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2015-05-21T17:06:34Z flip214: because it has been naughty.
2015-05-21T17:08:05Z stassats: flip214: but it's not 0d0
2015-05-21T17:08:46Z flip214: stassats: 0d0 has been nice and will get christmas presents, won't it? such like a new 0 to add after the comma.
2015-05-21T17:13:45Z stassats: ok, i have the simplest patch ever for that
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2015-05-21T17:20:25Z stassats: so, what's happening is that refuses to constantize known functions even though they are going to be full calls
2015-05-21T17:20:43Z stassats: but there's already SB-C::CALL-FULL-LIKE-P
2015-05-21T17:21:53Z stassats: now, its usage in SB-C::CONVERT-CALL is broken
2015-05-21T17:21:59Z stassats: it'll always return nil
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2015-05-21T17:25:29Z stassats: now i get Unexpected success: dynamic-extent.impure.lisp / (NO-CONSING SPECIALIZED-DX-VECTORS) on x86
2015-05-21T17:25:32Z stassats: (which was the goal)
2015-05-21T17:25:57Z stassats: now to see if anything breaks
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2015-05-21T17:27:25Z stassats: but 4622945017495814144 and 12d0 get the same treatment by boxed-ref-p, yet the bignum was constantized
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2015-05-21T17:30:03Z flip214: 12d0 is small enough to be immediate?
2015-05-21T17:30:13Z flip214: just guessing, I don't have the slightest clue.
2015-05-21T17:30:21Z stassats: double floats are always boxed
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2015-05-21T17:32:06Z stassats: ok, i see why the bignum got that treatment
2015-05-21T17:32:18Z stassats: because of SB-C:IMMEDIATE-CONSTANT-SC in make-constant-tn
2015-05-21T17:33:06Z stassats: ok, no failures from the patch, just one unexpected success
2015-05-21T17:33:37Z stassats: now, do we want word-sized bignums to go into immediate constants
2015-05-21T17:37:43Z stassats: so, there is indeed a problem
2015-05-21T17:37:58Z stassats: (lambda (z) (declare (optimize speed) ((and fixnum unsigned-byte) z)) (- 4622945017495814144 z))
2015-05-21T17:38:07Z stassats: MOV RDX, 4622945017495814144
2015-05-21T17:38:20Z stassats: but it also sits in the boxed constants, unused
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2015-05-21T17:51:18Z stassats: that's a bit more complicated to fix, since sometimes it wants to be a fixnum
2015-05-21T17:54:24Z stassats: i was annoyed by unnecessary float boxing for a long time
2015-05-21T18:08:56Z stassats: have a prospective fix for that, for immediate-constant-sc to return IMMEDIATE for ub64 when it's guaranteed to be boxed
2015-05-21T18:09:41Z stassats: but some things immediates to be always fixnums
2015-05-21T18:09:41Z stassats: ugh
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2015-05-22T02:31:52Z loke: hello
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2015-05-22T08:42:23Z jdz: hey guys, i'm just wondering why on an older SBCL (1.1.9.13-dacd3fc) the disassembly of the silly lambda here http://www.reddit.com/r/haskell/comments/36s0ii/how_do_we_all_feel_about_laziness/crh8vuz uses LEA two times, but on SBCL 1.2.11 i get LEA + ADD, like here: http://paste.lisp.org/display/148539
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2015-05-22T09:27:42Z White_Flame: jdz: if you look at the instruction bytes, the add is 1 byte shorter
2015-05-22T09:28:06Z White_Flame: the LEA is more flexible in terms of the math it can do, so that's likely why it was the earlier instruction of preference
2015-05-22T09:31:48Z jdz: White_Flame: i see, missed that
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2015-05-22T21:15:19Z francogrex: Hi I would like to try improving this sbcl on unix shortcoming: http://paste.lisp.org/display/148544
2015-05-22T21:16:17Z francogrex: but before I try, should I know anything about the possibility of inherent success/failure of such a task?
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2015-05-22T21:17:06Z stassats: today is not 2012/07/22
2015-05-22T21:17:20Z stassats: and it's not SBCL's fault this J thing is mucking up signals
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2015-05-22T21:26:26Z francogrex: on windows is not problem
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2015-05-22T23:01:16Z stassats: upgraded my arm development device, let's see how much faster it takes to build sbcl
2015-05-22T23:29:14Z stassats: 28 instead of 29 minutes
2015-05-22T23:29:19Z stassats: so much for 200 MHz
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2015-05-23T01:55:51Z joshe: hm
2015-05-23T01:55:59Z joshe: stassats: what are you using?
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2015-05-23T09:01:45Z |3b| suspects :c-bignum-logbitp test is broken on windows, looks like it tries to pass a pointer to alien function as 'int'
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2015-05-23T14:03:36Z stassats: char-code is done as SHR ECX, 8 SHL RCX, 1, but char-code-widetag is 7 bits, so it could just be SHR 7
2015-05-23T14:03:48Z stassats: save for the poor VOP selection
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2015-05-23T16:24:56Z clop2: once sbcl is started, is there a way to tell how much --dynamic-space-size has been given to sbcl when it was started up?
2015-05-23T16:25:27Z stassats: sb-ext:dynamic-space-size
2015-05-23T16:26:13Z clop2: hrmn, says it's an unbound variable
2015-05-23T16:26:24Z clop2: oh it's a function
2015-05-23T16:26:25Z clop2: sorry, thanks
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2015-05-23T17:38:26Z clop2: any idea why --dynamic-space-size 181982 would work, but 181983 fails?  (the machine has 512 gb)  "ensure_space: failed to validate ... bytes at 0x10000..."
2015-05-23T17:41:37Z stassats: the os doesn't want to give you the space
2015-05-23T17:42:21Z clop2: aha... does sbcl try to grab the heap in one giant malloc, so if something's in the middle of memory the os can't oblige?
2015-05-23T17:42:29Z stassats: yes
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2015-05-23T17:54:38Z clop2: is this pretty much a fundamental thing or are there OSes that might be better?  I'm using an old 2.6 linux kernel, I think, on this machine...?
2015-05-23T17:55:05Z stassats: it gets mapped here
2015-05-23T17:55:50Z stassats: you could try modifying dynamic space start and recompiling
2015-05-23T17:56:18Z stassats: but first look at proc maps
2015-05-23T17:56:23Z stassats: what's in the way
2015-05-23T18:00:44Z clop2: i don't know a lot about proc maps, is it likely that this is a sort of static something in the way, which could be "permanently" avoided by changing the dynamic space start, or is it more likely that just "some other program" happens to be running right now and is blocking the memory region?
2015-05-23T18:01:21Z stassats: this is virtual memory, no other program matters
2015-05-23T18:01:51Z clop2: aha, ok interesting
2015-05-23T18:02:10Z stassats: you may not have overcommit enabled
2015-05-23T18:02:19Z clop2: yes we have disabled that
2015-05-23T18:02:26Z clop2: i should have mentioned that, sorry
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2015-05-23T22:23:41Z stassats: trying a linux-under-android-without root
2015-05-23T22:23:50Z stassats: sbcl runs, but when trying to build itself it crashes
2015-05-23T22:24:58Z nyef: When are we going to be able to ship SBCL-based android apps through the play store? (-:
2015-05-23T22:26:56Z stassats: September 2023
2015-05-23T22:29:42Z nyef: Oh, god. I forgot how LONG it takes to boot a SunFire v210. /-:
2015-05-23T22:30:40Z stassats: looks like it dies during gc
2015-05-23T22:30:52Z nyef: Overcommit / OOM killer?
2015-05-23T22:31:00Z nyef: Or even just ulimit?
2015-05-23T22:31:25Z stassats: Memory fault at 0xffffffdd suggests neither
2015-05-23T22:31:41Z nyef: Ouch.
2015-05-23T22:33:13Z stassats: i'm tempted to actually root the phone
2015-05-23T22:33:28Z stassats: but thinking about warranty and such
2015-05-23T22:36:42Z stassats: ok, to hell with warranty
2015-05-23T22:36:59Z nyef: Heh.
2015-05-23T22:43:59Z stassats: ok, success there
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2015-05-23T22:55:42Z nyef: Okay, got the ALOM on my SunFire reset AGAIN, and this time the password written down.
2015-05-23T22:56:34Z nyef: Going to have to think carefully about trying to install a Fuel V10 graphics card in one of my O350s.
2015-05-23T23:01:43Z stassats: debootstrap didn't give me apt-get
2015-05-23T23:02:01Z nyef: Do you at least have apt?
2015-05-23T23:02:16Z stassats: just dpkg
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2015-05-23T23:03:33Z nyef: Okay, that's at least workable.
2015-05-23T23:03:46Z nyef: A pain in the... something, but workable.
2015-05-23T23:04:02Z stassats: i'm going to redo it anyway, for arm64
2015-05-23T23:05:24Z nyef: Mmm. I'm getting ready for my next round against the Linux kernel, trying to get a usable MIPS64 environment on the hardware that I have.
2015-05-23T23:07:23Z stassats: apparently i also have to run debootstrap/debootstrap on target
2015-05-23T23:17:21Z stassats: ok, that gives me apt
2015-05-23T23:19:52Z stassats: uname -m
2015-05-23T23:19:54Z stassats: aarch64
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2015-05-23T23:44:05Z stassats: so, my benchmark  (time (loop for i below most-positive-fixnum by 5 sum (ldb (byte 1 0) i)))
2015-05-23T23:44:16Z stassats: 3.114 on the old one 2.330 now
2015-05-23T23:46:02Z stassats: ok, things do crash on the new one even under root
2015-05-23T23:46:05Z stassats: but now i can debug it
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2015-05-23T23:53:58Z stassats: could it be that the undefined instruction tricks break down?
2015-05-23T23:57:08Z stassats: (sb-ext:gc :full t) runs fine
2015-05-23T23:58:19Z stassats: but not (make-array 100000000)
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2015-05-24T00:01:41Z nyef: That seems a little odd, given that the undefined instruction tricks that we use (or at least the ones that we used last I checked) are explicitly licensed for use in the context of gdb and the like to trigger a SIGTRAP.
2015-05-24T00:06:03Z stassats: the code looks like thumb
2015-05-24T00:06:19Z stassats: to gdb
2015-05-24T00:07:24Z stassats: probably just some libc and the original code didn't survive backtracing
2015-05-24T00:08:54Z stassats: set arm fallback-mode arm
2015-05-24T00:09:08Z stassats: looks saner
2015-05-24T00:09:34Z stassats: svclt   0x00000000 str     r3, [r0, #3]
2015-05-24T00:09:38Z stassats: str is where it traps
2015-05-24T00:11:22Z stassats: ok, the function is GET-EXTERNAL-FORMAT for some reason
2015-05-24T00:14:23Z stassats: there's a problem with locales, but still weird
2015-05-24T00:21:54Z stassats: problem with the kernel?
2015-05-24T00:29:44Z stassats: ok, maybe it allocates at the wrong place
2015-05-24T00:32:56Z stassats: (loop (setf * (make-array 10))) exhausts heap
2015-05-24T00:33:23Z stassats: and allocating different things produces different addresses, which means alloc() returns something bogus
2015-05-24T00:36:30Z stassats: different stack alignment?
2015-05-24T00:41:36Z stassats: ok, yes, alloc returns something bogus
2015-05-24T00:41:41Z stassats: but why?
2015-05-24T00:45:21Z stassats: ok, i need to cross-build and do some printing
2015-05-24T00:45:24Z stassats: but not today
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2015-05-24T20:43:17Z stassats: constructed a vop that just calls alloc_tramp, alloc successfully allocates some space, but it does sometime after that
2015-05-24T20:43:21Z stassats: probably alloc_tramp is bad
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2015-05-24T20:47:20Z francogrex: hi sbcl arm is unithread build?
2015-05-24T20:47:51Z stassats: yes
2015-05-24T20:48:01Z francogrex: is it possible to build the new sbcl for x86 linux also as unithread?
2015-05-24T20:48:28Z nyef: I have an angle on scaring up a TLS register for ARM, but it hasn't crossed the threshhold of worth doing any time soon yet.
2015-05-24T20:48:37Z francogrex: I mean for me as the end user to build from src?
2015-05-24T20:48:56Z stassats: yes
2015-05-24T20:49:01Z nyef: build --without-sb-thread ?
2015-05-24T20:49:26Z francogrex: ok I prefer for some programs
2015-05-24T20:49:49Z stassats: nyef: that actually now works
2015-05-24T20:50:00Z nyef: You mean it didn't before?
2015-05-24T20:50:03Z stassats: i do
2015-05-24T20:50:09Z nyef: Hunh.
2015-05-24T20:50:37Z stassats: 894fc3c16af173a038e415bc42d8b0e15a877d6e
2015-05-24T20:51:18Z francogrex: perfect
2015-05-24T20:52:19Z stassats: and the PC of the memory fault keeps saying GET-EXTERNAL-FORMAT
2015-05-24T20:52:26Z stassats: now that doesn't make any sense
2015-05-24T20:52:49Z stassats: bad return address?
2015-05-24T20:53:55Z stassats: and alloc_tramp succeeds most of the time
2015-05-24T20:54:12Z nyef: Ah, neat.
2015-05-24T20:55:30Z stassats: (foo) allocated: 0x51a5c890 => 1369819280
2015-05-24T20:55:50Z stassats: (foo) just calls alloc_tramp and returns its result, and allocated is a printf from alloc()
2015-05-24T20:56:00Z stassats: so, this checks out when i have size of 16
2015-05-24T20:56:07Z stassats: but not of 400000008
2015-05-24T20:56:33Z stassats: in that case it's allocated: 0x526b6000 Memory fault at 0xffffffd7
2015-05-24T20:57:07Z nyef: That's one heck of an allocation size, though.
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2015-05-24T20:57:57Z stassats: works on a working instance
2015-05-24T20:58:22Z stassats: and it apparently works here, just doesn't get back
2015-05-24T20:58:49Z stassats: time to stare at alloc_tramp
2015-05-24T20:59:05Z nyef: That's... How is that NOT an overflow scenario?
2015-05-24T21:00:27Z stassats: dss is 512MB and this is just 381MB
2015-05-24T21:00:40Z stassats: so it should work and it does, until it doesn't
2015-05-24T21:00:44Z nyef: Hrm.
2015-05-24T21:00:58Z nyef: Environmental effects?
2015-05-24T21:02:04Z stassats: and there's no gc going on
2015-05-24T21:02:17Z stassats: so alloc() succeeds but something gets screwed up
2015-05-24T21:04:01Z stassats: the return address is saved on the stack
2015-05-24T21:04:17Z stassats: could it become overwritten
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2015-05-24T21:05:19Z stassats: maybe some gdb stepping
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2015-05-24T21:12:01Z stassats: the return address seems fine
2015-05-24T21:12:27Z nyef: What about the allocation pointer and whatnot?
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2015-05-24T21:13:53Z stassats: $1 = {free_pointer = 0x518765e8, end_addr = 0x51877000, first_page = 10358,last_page = 10358, start_addr = 0x51876000}
2015-05-24T21:13:56Z francogrex: ok it works fine as expected. I got it from https://github.com/sbcl/sbcl, it says it's SBCL 1.0.99.999!
2015-05-24T21:14:13Z stassats: it shouldn't say that
2015-05-24T21:14:20Z stassats: and it's not the official sbcl repository
2015-05-24T21:14:49Z stassats: the allocated thing is at 0x526b6000
2015-05-24T21:16:15Z stassats: so, somewhere in large objects
2015-05-24T21:16:32Z stassats: but it happens with small allocations as well
2015-05-24T21:16:48Z stassats: more stepping
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2015-05-24T21:26:46Z stassats: always forgetting the ! in the cold sbcl
2015-05-24T21:27:34Z nyef: We could largely get rid of it, at the expense of having another reader.
2015-05-24T21:29:24Z stassats: so, it returns back fine
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2015-05-24T21:39:58Z stassats: doesn't make any sense whatsoever
2015-05-24T21:41:23Z stassats: well, know what, it does call SB-IMPL::GET-EXTERNAL-FORMAT
2015-05-24T21:42:06Z stassats: i traced it and it returns
2015-05-24T21:43:19Z stassats: each time the repl prints something it calls get-external-format
2015-05-24T21:43:22Z stassats: that sounds wasteful
2015-05-24T21:44:09Z nyef: Might be a good reason for it, though.
2015-05-24T21:45:43Z stassats: so it probably just screws up the subsequent allocation
2015-05-24T21:46:09Z stassats: since (loop collect 10) meets the same demise
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2015-05-24T21:51:26Z stassats: so, an overflow, huh?
2015-05-24T21:51:45Z stassats: now that makes sense
2015-05-24T21:51:55Z stassats: who wrote allocation?
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2015-05-24T21:52:09Z stassats: well, i did
2015-05-24T21:52:17Z stassats: for gencgc
2015-05-24T21:53:12Z nyef: Mmm. I did the cheneygc version, though... Does that still work? (-:
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2015-05-24T21:53:23Z stassats: no idea
2015-05-24T21:53:58Z nyef: ... I'm going to have to get an ARM 1U for my stack here, aren't I?
2015-05-24T21:54:29Z stassats: but looking at x86 allocation, it doesn't check for overflow, does it?
2015-05-24T21:56:17Z stassats: now, how i check for overflow in composite-immediate-instruction
2015-05-24T21:57:13Z stassats: using adds[whateverthecodeforoverflow]?
2015-05-24T21:58:23Z nyef: At the end, doing a compare to see if the result is less than either of the sources?
2015-05-24T21:58:36Z nyef: (That is, one compare, to either one of the sources.)
2015-05-24T21:59:00Z stassats: there's no source
2015-05-24T21:59:28Z nyef: Ah, okay. In that case I'm completely lost.
2015-05-24T21:59:45Z stassats: the initial value is being modified, and the addendant is an "immediate"
2015-05-24T21:59:46Z nyef: I paged most of the ARM stuff out a while ago.
2015-05-24T22:00:04Z stassats: adds :vc seems like it
2015-05-24T22:01:27Z stassats: but SB-VM::COMPOSITE-IMMEDIATE-INSTRUCTION gives me nightmares
2015-05-24T22:03:30Z stassats: i think i have a register to spare to load it
2015-05-24T22:03:47Z stassats: wait, it does get loaded already
2015-05-24T22:04:39Z stassats: or not
2015-05-24T22:06:50Z stassats: not, i was just too excited not to have to modify composite-immediate-instruction
2015-05-24T22:07:31Z nyef: composite-immediate-instruction seems even worse than that one macro in mcclim.
2015-05-24T22:07:55Z stassats: it's about to become badder
2015-05-24T22:08:16Z Quadrescence: nyef, which McCLIM macro?
2015-05-24T22:09:15Z nyef: Quadrescence: The one for the horizontally/vertically thing.
2015-05-24T22:19:28Z stassats: ok, conjured up something
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2015-05-24T22:23:43Z stassats: still dying
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2015-05-24T22:25:03Z stassats: and disassemble is not working in cold sbcl
2015-05-24T22:25:13Z nyef: Trace file?
2015-05-24T22:25:32Z stassats: (sb!disassem:disassemble-code-component #'list) works
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2015-05-24T22:29:24Z stassats: actually, there seems to be no overflow
2015-05-24T22:30:26Z stassats: (+ #x5339f008 8) isn't close to overflowing
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2015-05-24T22:38:49Z stassats: so, it's back to not making sense
2015-05-24T22:45:26Z stassats: cpu bugs?
2015-05-24T22:46:12Z nyef: You're grasping at straws.
2015-05-24T22:46:42Z stassats: it does str r0, [r7]
2015-05-24T22:46:56Z stassats: so, looking it up, it's 0x5339f008
2015-05-24T22:47:10Z nyef: Is the memory fault always at #xffffffd7 ?
2015-05-24T22:47:12Z stassats: but then it does sub r0, r0, #8 and orr r0, r0 #3
2015-05-24T22:47:23Z stassats: and the value of r0 is now  0xffffffda
2015-05-24T22:47:24Z stassats: the hell?
2015-05-24T22:48:51Z nyef: #xda after a logior with 3? What?
2015-05-24T22:49:31Z nyef: Two things come to mind, and the first one is to suspect something going on with the instruction encoding.
2015-05-24T22:49:47Z nyef: Something that the disassembler is masking, somehow.
2015-05-24T22:49:52Z stassats: ok, there's PA checking before that
2015-05-24T22:49:53Z nyef: Should be an easy enough thing to check.
2015-05-24T22:50:12Z stassats: r0 is not being saved?
2015-05-24T22:50:24Z nyef: Possible kernel bug?
2015-05-24T22:51:05Z stassats: i don't know if it's triggered
2015-05-24T22:51:27Z stassats: it would be if there were gc, but qshow doesn't show any gc
2015-05-24T22:52:09Z stassats: well, it doesn't go to alloc_tramp
2015-05-24T23:01:14Z stassats: oh wait, it's stack allocation is it not?
2015-05-24T23:03:35Z stassats: but (loop collect 10) fails too
2015-05-24T23:07:01Z stassats: so, it dies both in dx and heap allocations
2015-05-24T23:07:02Z stassats: ?
2015-05-24T23:10:16Z stassats: ok, let's remove pa checking
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2015-05-24T23:17:07Z stassats: well, that worked
2015-05-24T23:28:36Z stassats: ok, confirmed
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2015-05-24T23:29:40Z stassats: http://paste.lisp.org/display/148623
2015-05-24T23:30:04Z stassats: damn it!
2015-05-24T23:32:22Z stassats: if it's just r0, it can be worked around
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2015-05-24T23:53:16Z stassats: ok, it's only r0
2015-05-25T00:02:55Z nyef: Hrm. -41 ?
2015-05-25T00:03:23Z nyef: Are we looking at something weird similar to what happens with EAX/RAX with ptrace()?
2015-05-25T00:03:54Z stassats: -35
2015-05-25T00:04:02Z stassats: -41 is after we get our hands on it
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2015-05-25T00:08:17Z stassats: #defineEDEADLK35/* Resource deadlock would occur */
2015-05-25T00:08:30Z nyef: Hrm.
2015-05-25T00:08:38Z nyef: Okay, that seems odd and unlikely.
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2015-05-25T00:24:28Z stassats: if it's a normal signal, why doesn't it restore all registers
2015-05-25T00:24:50Z nyef: ... kernel bug?
2015-05-25T00:26:24Z stassats: there's a thing named ORIG_r0
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2015-05-25T00:30:40Z nyef: Yeah, something to do with the syscall/return path. Something like both the syscall number and return value being in r0 or similar.
2015-05-25T00:31:24Z nyef: And a default return value gets stuffed in the r0 register, while the ORIG_r0 register holds the actual value.
2015-05-25T00:33:50Z stassats: not bug but something changed?
2015-05-25T00:34:15Z stassats: of course kernel people don't imagine anyone might be interested in stuff like this, so they keep it secret and change willy nilly?
2015-05-25T00:34:37Z nyef: Exactly!
2015-05-25T00:35:08Z nyef: The amount of time it took before I learned about the kernel hooking that one illegal instruction and bouncing it to SIGTRAP? Eesh.
2015-05-25T00:36:09Z stassats: ok, i'll just push r0 onto the stack
2015-05-25T00:37:00Z stassats:  but which stack?
2015-05-25T00:42:10Z stassats: or just grab r0
2015-05-25T00:43:52Z stassats: oh, right, r0 is a boxed register, so it's clear which stack
2015-05-25T00:44:16Z stassats: (not the compact one)
2015-05-25T00:44:27Z nyef: ... Is your fault coming from scavenge_interrupt_context()?
2015-05-25T00:44:42Z nyef: Or something similar like that?
2015-05-25T00:44:42Z stassats: no, it's coming from a bogus r0 value
2015-05-25T00:45:24Z nyef: Okay, I'm clearly too out of it to follow along very well. /-:
2015-05-25T00:45:46Z stassats: well, it's just bogus, fault or not
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2015-05-25T00:49:27Z stassats: hm,   now it's not even calling the trap function
2015-05-25T00:49:57Z stassats: it never did?
2015-05-25T00:50:21Z stassats: so, not only it fucks up r0, but it doesn't cause an interrupt, so r0 is really an error message?
2015-05-25T00:50:25Z stassats: but i can't decode it
2015-05-25T00:51:10Z stassats: that makes slightly more sense
2015-05-25T00:52:54Z nyef: Something crazy going on with ptrace, maybe?
2015-05-25T00:53:20Z nyef: Oh! What if it's an ignored SIGILL?
2015-05-25T00:53:43Z nyef: Or something equally crazy?
2015-05-25T00:55:06Z stassats: so, undefined instructions and conditional execution, yes or no?
2015-05-25T00:57:23Z stassats: what about a, gasp, function call?
2015-05-25T00:57:39Z nyef: So crazy it just might work!
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2015-05-25T00:59:47Z stassats: if all else fails, i'll just do it the alloc_tramp way
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2015-05-25T01:02:34Z stassats: also good for sbcl.so
2015-05-25T01:10:06Z stassats: and i forgot that my grep was only seeing C files
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2015-05-25T01:11:48Z stassats: now i see, there's such a thing as CONFIG_OABI_COMPAT
2015-05-25T01:12:23Z stassats: so, this kernel is just built without this thing
2015-05-25T01:15:00Z nyef: ... And here I thought that we were using EABI in the first place?
2015-05-25T01:15:10Z stassats: right, just came to that conclusion
2015-05-25T01:15:26Z stassats: no idea how samsung configured this one
2015-05-25T01:15:26Z nyef: And, of course, finding information about the DETAILS of each ABI is a pain in the ass at best
2015-05-25T01:16:25Z stassats: considering that this is actually a 64-bit kernel
2015-05-25T01:17:04Z stassats: so i'm looking at the wrong kernel sources
2015-05-25T01:21:31Z stassats: ok, i see now, the 64-bit kernel doesn't support this feature
2015-05-25T01:23:10Z stassats: it only does __ARM_NR_compat_cacheflush and __ARM_NR_compat_set_tls
2015-05-25T01:23:48Z stassats: ok, everything is clear now
2015-05-25T01:24:18Z stassats: let's just port to aarch64
2015-05-25T01:24:58Z nyef: Have fun with that.
2015-05-25T01:25:20Z stassats: but i still want aarch32 to work on aarch64
2015-05-25T01:25:37Z nyef: The only 64-bit hardware I have right now is x86-64, PPC, SPARC, MIPS, and Alpha.
2015-05-25T01:25:56Z stassats: and i'm not sure whether to change pa-checker for everyone or with a special feature
2015-05-25T01:26:23Z stassats: nyef: ILTWYS"only"
2015-05-25T01:27:42Z stassats: i wish it would have just crashed instead of returning garbage in R0
2015-05-25T01:27:52Z stassats: would've saved me a ton of time
2015-05-25T01:27:54Z joshe: I have a broken pa-risc in place of the alpha
2015-05-25T01:28:28Z nyef: Oh, right! Forgot about my HPPA.
2015-05-25T01:28:35Z nyef: I have a 64-bit HPPA as well.
2015-05-25T01:28:47Z stassats: and the only 64-bits i have are x86, arm and remote ppc
2015-05-25T01:28:49Z joshe: I actually have two, one broken and one only partly broken
2015-05-25T01:29:23Z nyef: I have a broken HPPA as well. Better CPUs, but won't power on, something about a power problem on the main board.
2015-05-25T01:29:30Z joshe: but I think I might have both endiannesses on mips
2015-05-25T01:29:35Z nyef: I suppose it could "just" be a blown VRM...
2015-05-25T01:29:38Z stassats: i think 32-bit arm is useless overall, might as well start cracking
2015-05-25T01:29:57Z nyef: stassats: Would 32-bit ARM be less useless if it supported threads?
2015-05-25T01:30:16Z stassats: one of the reasons it's useless, not enough registers for threads
2015-05-25T01:31:13Z stassats: and faster cpus are bound to be 64-bit now, and sbcl needs the heft
2015-05-25T01:37:50Z stassats: can't run any consing benchmarks
2015-05-25T01:38:11Z stassats: (time (loop for i to 100000000 count (logbitp 13  i ))) is ~300ms vs 842 ms
2015-05-25T01:38:41Z stassats: and 100ms on the desktop
2015-05-25T01:38:48Z stassats: looks fast enough
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2015-05-25T01:39:52Z stassats: ~250ms on an atom cpu
2015-05-25T01:40:10Z stassats: very scientific
2015-05-25T01:44:21Z stassats: that's about the cpu i had ten years ago
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2015-05-25T03:38:15Z dougk2: does anyone understand why we want to deliberately lose information when parsing (specifier-type '(function (combination) (values)) ?
2015-05-25T03:38:28Z dougk2: it says that the function's return type is '*
2015-05-25T03:38:50Z dougk2: which I broke, apparently, and made it "correctly" reflect (values &optional)
2015-05-25T03:39:24Z nyef: Is it that we want to, or is it that the original behavior is wrong and we somehow ended up depending on it?
2015-05-25T03:40:09Z dougk2: well, yah, that's the question. I would expect it to be a mistake that was come to be relied upon
2015-05-25T03:40:22Z nyef: Every so often we find buried treasure in the type system. This could be an example.
2015-05-25T03:42:42Z dougk2: I think it might make sense. Without trailing &optional, expressing that you have number of values means that you might have any additional values. So no values actually means 0 or more, which equate to wild.
2015-05-25T03:43:55Z loke: Why does the following: (let ((b 10)) ``(a . ,,b))
2015-05-25T03:44:02Z loke: print as `(A ,@10)
2015-05-25T03:44:16Z loke: I'd expect it to print as `(A . ,10)
2015-05-25T03:44:32Z nyef: loke: They're semantically equivalent.
2015-05-25T03:44:36Z loke: I know
2015-05-25T03:45:02Z nyef: So the actual surface structure isn't kept, only the deep structure (to borrow the linguistics metaphor).
2015-05-25T03:45:07Z loke: but if 10 is a symbol, it looks confusing (it certainly confused me)
2015-05-25T03:45:45Z loke: I understand that. I guess what I'm asking is that if the thing to be rendered is an atom, that it be rendered using dot-notation
2015-05-25T03:47:03Z loke: It would be fully compatible still, but make rendering of bq-forms much nicer (imho, of course)
2015-05-25T03:48:41Z dougk2: loke: the backquote system generally has to prefer ,@ in lieu of ". ," when it can for various internal reasons. iirc the test back.impure.lisp with a comment ";; The following expression produces different result under LW." is because LW doesn't make that equivalence
2015-05-25T03:49:58Z dougk2: and the other problem is that it is very much up to the system how it wants to render anything until evaluated since backquote has no standard meaning until it has been evaluated as many times as there are "`"
2015-05-25T03:52:25Z loke: True. But I'm really just concerned with the visual representation of an unevaluated bq-form. Isn't the way it's displayed disjoint from the underlying implementation?
2015-05-25T03:53:20Z loke: I mean, since `(A . ,B) is equivalent to `(A ,@B) shouldn't it be possible to render the latter as the former?
2015-05-25T03:53:52Z loke: (this would assume that other people agrees with me as to which one is more readable, of course)
2015-05-25T03:54:45Z nyef: It should be possible. But readability is in the eye of the beholder. I far prefer `(A ,@B) most of the time.
2015-05-25T03:55:27Z nyef: You should be able to hack your pprint dispatch table to do it either way, really, although the dependency on how backquote is implemented might trip you up.
2015-05-25T03:57:50Z dougk2: also i'm pretty certain (as the author of the latest code in backq) that stuff broke when I removed line#212 (preceded by the remark about exactly what you're asking. "(A B . ,X) becomes (A B ,@X).")
2015-05-25T03:59:11Z dougk2: after reading, we make every effort to preserve exactly what was read, from a visual perspective. This differs from other implementations which at read time discard the distinction
2015-05-25T03:59:31Z dougk2: but after 1 evaluation, it gets to choose how the new form looks, and there's basically nothing you can do about it.
2015-05-25T04:00:14Z dougk2: if you do (read-from-string "``(a . ,,b)") you'll see that that is rendered as it was originally
2015-05-25T04:05:37Z loke: Yes, that's actually very nice.
2015-05-25T04:05:46Z loke: It was the partical bq-evaluation that tripped me up
2015-05-25T04:06:19Z loke: It didn't look the same as what I had typed and started looking for my error in the ,`,... mess (the actual code was a bit more complicated than my simple example)
2015-05-25T04:08:49Z loke: Another, unrelated, question: Could SBCL benefit from using AVX?
2015-05-25T04:08:59Z loke: (advanced vector extensions)
2015-05-25T04:09:18Z nyef: Automatic vectorization and the like?
2015-05-25T04:10:15Z loke: Based on what I'm reading, avx support 512-bit vector operations. I'm not sure what specifically in CL could take advantage of it, so I was curious as to what the experts have to say.
2015-05-25T04:11:11Z loke: I was thinking that thinks like LOGxxx on large integers could benefit?
2015-05-25T04:11:21Z loke: Or operations on bitvectors?
2015-05-25T04:11:39Z nyef: I've got no clue, and am just about out of runtime for today.
2015-05-25T04:11:42Z nyef: Sorry.
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2015-05-25T13:02:43Z francogrex: windows works fine, arm linux works fine, only on x86 linux fucks up with this: http://paste.lisp.org/display/148645
2015-05-25T13:03:10Z francogrex: what's the deal? regardless of the version of hotspot
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2015-05-25T13:18:35Z |3b|: francogrex: did you see http://thread.gmane.org/gmane.lisp.steel-bank.devel/12936/ ? seems to be some jvm optimization gets confused by how sbcl sets up stacks
2015-05-25T13:21:24Z francogrex: |3b|: I think the author Jean-Claude Beaudoin got it somehow wrong. Because if the problem is sbcl/unix then I would have expected it also on sbcl/linux-arm while on that OS and arch, sbcl and cl+j run perfectly fine
2015-05-25T13:22:50Z francogrex: I could though run a new thread as suggested... thanks for that link
2015-05-25T13:28:39Z |3b|: problem is jvm/x86/linux
2015-05-25T13:29:00Z |3b|: different os, different cpu, different optimizations
2015-05-25T13:29:19Z brucem: francogrex: if it is TLS related as mentioned in that thread, then that's CPU + OS specific ... so x86-linux may well have it and arm-linux not.
2015-05-25T13:31:00Z |3b|: and searching for that error, seems like it may affect other language/runtime than sbcl, though didn't see any cases where people looked into it enough to tell if it was actually same thing or not
2015-05-25T13:31:09Z |3b| didn't look into it too deeply though
2015-05-25T13:35:54Z francogrex: ok I'll look into that. Thanks |3b|
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2015-05-25T14:04:52Z oleo: which gc is default in sbcl ? and which gc is default when compiled via --fancy ?
2015-05-25T14:04:59Z oleo: which variables affect it ?
2015-05-25T14:06:07Z |3b|: depends on platform
2015-05-25T14:06:35Z |3b|: don't think --fancy will affect it
2015-05-25T14:07:27Z oleo: ok
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2015-05-25T14:37:07Z |3b|: hmm, compile-file doesn't catch duplicate key error from (defun foo (&key a a))
2015-05-25T14:37:15Z |3b|: goes into debugger
2015-05-25T14:42:21Z |3b|: (lambda (&key a a)) gets a slightly different message and is handled as expected though
2015-05-25T14:44:19Z |3b|: (compile nil '(lambda () (defun a (&key a a)))) lands in debugger as well, so not specific to compile-file
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2015-05-25T14:52:15Z |3b|: (defun foo (a a)) is handled properly
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2015-05-25T15:04:11Z |3b|: filed as https://bugs.launchpad.net/sbcl/+bug/1458600
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2015-05-25T15:19:15Z stassats: i came up with the same space arm PA checker
2015-05-25T15:20:12Z stassats: instead of NIL and f0001 it will store 0 and the address of a check_pending_tramp, compare it to 0 and BLX[whatever condition that is] there
2015-05-25T15:21:36Z stassats: should be faster too, no kernel
2015-05-25T15:22:06Z stassats: and i think i see a way to unite pa-atomic and pa-interrupted
2015-05-25T15:22:56Z stassats: |3b|: so it's just the way it's reported, i was afraid it was crashing
2015-05-25T15:24:27Z |3b| was having trouble making the distinction or what was wrong if you mean the &key a a thing
2015-05-25T15:25:44Z |3b|: ending up in the debugger seems a bit worse than "the way it is reported", but not ldb bad
2015-05-25T15:26:05Z stassats: will fix after the freeze
2015-05-25T15:29:54Z stassats: while (typep #'list '(function (&key (a fixnum) (a fixnum)))) should still crash that way
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2015-05-25T15:31:45Z stassats: or rather (declaim (type (function (&key (a fixnum) (a fixnum))) x))
2015-05-25T15:31:50Z stassats: since typep should crash earlier
2015-05-25T15:33:14Z |3b|: should it? declaim i mean
2015-05-25T15:33:28Z |3b|: if by 'crash' you mean send compile-file to debugger
2015-05-25T15:33:34Z stassats: run-time crash
2015-05-25T15:34:12Z stassats: also compile-time, since, it's just eval-when :all to proclaim
2015-05-25T15:34:47Z |3b|: hmm, i guess so
2015-05-25T15:35:41Z |3b|: so possibly annoying, but correct (and much less likely than duplicate keys in defun anyway)
2015-05-25T15:36:37Z stassats: alright, till thaw time
2015-05-25T15:36:53Z stassats: now i need to try to implement my ARM strategy
2015-05-25T15:37:18Z stassats: or better, eat something
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2015-05-25T15:50:25Z stassats: now i need to somehow fill the sigcontext
2015-05-25T15:52:11Z stassats: or i can just reuse the undefined instruction for now
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2015-05-25T17:23:38Z stassats`: finally get to call the initial function and it greets me with Object is of the wrong type.
2015-05-25T17:23:52Z stassats`: at GET-CAT-ENTRY
2015-05-25T17:24:24Z oleo: CAT ?
2015-05-25T17:24:40Z oleo: catalog ?
2015-05-25T17:25:09Z stassats`: no, of course it's about felines
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2015-05-25T17:28:23Z oleo: lol
2015-05-25T17:28:26Z oleo: meow!
2015-05-25T17:28:27Z oleo: hahahahaha
2015-05-25T18:04:58Z stassats`: looks i broke foreign function calling or something
2015-05-25T18:05:24Z stassats`: strange
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2015-05-25T18:33:40Z stassats`: primitive print prints (null)
2015-05-25T18:33:42Z stassats`: huh
2015-05-25T18:33:52Z stassats`: something is definitely broken
2015-05-25T18:46:53Z nyef: It's times like that where I'm really glad to have source control.
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2015-05-25T18:50:13Z stassats`: i didn't even touch anything related to alien calls
2015-05-25T18:55:42Z stassats`: and two screens is clearly not enough
2015-05-25T18:55:59Z stassats`: one for ssh to arm, one for emacs and one for cross compiling
2015-05-25T18:56:10Z stassats`: and one for irc
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2015-05-25T18:57:51Z stassats`: oh, i see, i forgot to update swi usage in arm-assem.S
2015-05-25T19:04:44Z stassats`: progress
2015-05-25T19:04:50Z stassats`: maximum interrupt nesting depth (1024) exceeded
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2015-05-25T19:15:53Z stassats`: so many silly mistakes wasting so much time
2015-05-25T19:16:20Z stassats`: put trap_Error instead of trap_PendingInterrupt
2015-05-25T19:21:11Z stassats`: now it's spinning somewhere
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2015-05-25T19:59:39Z stassats`: (loop collect 10) now works
2015-05-25T19:59:49Z stassats`: but not (length (make-array 100000000)  )
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2015-05-25T20:08:46Z stassats`: oh blimey, i overwrote lr, and bx lr was just looping
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2015-05-25T20:24:59Z stassats`: alright, alright, i've got a aarch32 ready sbcl
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2015-05-25T20:32:50Z stassats`: https://github.com/stassats/sbcl/commit/7dbdba8801568353cd808c5c967049ab84d5b59f
2015-05-25T20:39:31Z stassats`: Signal 4 received
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2015-05-25T21:58:29Z stassats`: array allocation still broken
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2015-05-25T22:27:09Z joshe: scr
2015-05-25T22:27:48Z joshe: ah, I never get tired of emacs getting a partial control sequence
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2015-05-25T22:57:13Z stassats`: this is getting annoying
2015-05-25T22:58:35Z nyef: Still on allocation issues?
2015-05-25T22:59:20Z stassats`: yep
2015-05-25T22:59:27Z nyef: Specifically arrays?
2015-05-25T22:59:31Z stassats`: right
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2015-05-25T22:59:44Z stassats`: i'm not using swi anymore
2015-05-25T22:59:46Z nyef: And you audited src/assembly/arm/array.lisp ?
2015-05-25T23:00:03Z stassats`: it required changes, yes
2015-05-25T23:00:07Z nyef: Hrm.
2015-05-25T23:00:17Z nyef: Oh!
2015-05-25T23:00:31Z stassats`: just saving of LR
2015-05-25T23:00:54Z nyef: Suddenly I see what happened: The SWI suddenly started returning ENOSYS, because the BREAK_POINT syscall went away, didn't it?
2015-05-25T23:01:09Z stassats`: yes, that was yesterday
2015-05-25T23:01:18Z nyef: Yes, but I was fairly well out of it at the time. d-:
2015-05-25T23:01:42Z stassats`: returning ENOSYS is a pretty stupid decision, by the way
2015-05-25T23:01:54Z nyef: No, that's what it's supposed to do.
2015-05-25T23:02:02Z nyef: It's a syscall.
2015-05-25T23:02:23Z stassats`: it doesn't modify R0 on success
2015-05-25T23:02:26Z nyef: Did we ever determine if the "illegal" breakpoint instruction works with a condition?
2015-05-25T23:02:46Z stassats`: so, how do you check that it's actually successful? zeroing r0 beforehand?
2015-05-25T23:03:25Z nyef: Well, that's the thing: If it works, your debugger gets the SIGTRAP.
2015-05-25T23:03:38Z nyef: But it's a two-instruction sequence, so no debugger used it if they could help it...
2015-05-25T23:04:05Z nyef: Well, a two-instruction sequence NOW. At one point the syscall numbers were encoded in the SWI instruction.
2015-05-25T23:04:10Z stassats`: anyhow, i came up with a similarly compact scheme for pa checking
2015-05-25T23:04:59Z stassats`: pai = 0, when interrupted it contains the address of do_pending_interrupt, so it's just cmp PAI, 0  BLXNE PAI
2015-05-25T23:05:36Z stassats`: for do_pending_interrupt i used the undefined isntrctuin with trap_PendingInterrupt
2015-05-25T23:06:10Z stassats`: but this will allow to do it all in user-space in the future
2015-05-25T23:07:02Z stassats`: and i can build sbcl and contribs, but there's still something fishy around make-array
2015-05-25T23:11:09Z nyef: It's an assembly-routine, that might have some semantics associated with it.
2015-05-25T23:11:23Z nyef: ... Like LR being live at that point?
2015-05-25T23:11:52Z nyef: Yeah, I bet LR is live.
2015-05-25T23:11:56Z stassats`: what that would be used for?
2015-05-25T23:12:38Z nyef: Have a look at generate-call-sequence / generate-return-sequence in src/assembly/arm/support.lisp.
2015-05-25T23:12:51Z stassats`: well, i account for that
2015-05-25T23:12:58Z nyef: And don't forget that it has interior-pointer nature.
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2015-05-25T23:15:10Z stassats`: i'll try a doing do_pending_interrupt with a different calling convention
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2015-05-25T23:30:23Z stassats`: or i can return not into the assembly-routine, but to the caller
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2015-05-25T23:35:17Z stassats`: i guess either PC or LR need to point into the lisp function
2015-05-25T23:36:20Z stassats`: writing 1 line of code per hour, very productive
2015-05-25T23:37:15Z stassats`: whaddayaknow, success
2015-05-25T23:37:27Z stassats`: nyef: thanks for ideas
2015-05-25T23:38:23Z nyef: stassats`: That's one of the reasons I'm here. You're welcome. (-:
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2015-05-25T23:40:10Z stassats`: self-building take2
2015-05-25T23:40:29Z stassats`: updated patch: https://github.com/stassats/sbcl/commit/fbf059e62559d61ad8d4ef05b756abd4b56727e7
2015-05-25T23:42:53Z stassats`: if it takes me three days for a simple fix for running on aarch64, i can't imagine how much time it will take for porting to aarch64
2015-05-25T23:43:11Z Quadrescence: stassats`, we all believe in you
2015-05-25T23:43:34Z stassats`: at least the target devices is fast
2015-05-25T23:46:49Z nyef: Consider this: My SECOND attempt at porting SBCL to ARM started on 2012-Feb-28. When was it complete enough to check in to mainline? (-:
2015-05-25T23:47:21Z Quadrescence: how can one make porting a simpler process
2015-05-25T23:47:37Z nyef: My first attempt started 2007-Dec-28.
2015-05-25T23:47:44Z stassats`: Quadrescence: be ultra smart and not make mistaskes
2015-05-25T23:47:50Z Quadrescence: that is a good way
2015-05-25T23:47:53Z stassats`: silly one line mistakes that take 50 minutes to catch
2015-05-25T23:48:15Z Quadrescence: hey you can always blame the CPU or ISA
2015-05-25T23:48:30Z stassats`: i almost did yesterday, but then it was the kernel
2015-05-25T23:48:41Z stassats`: and it was just a not implemented feature, not a bug
2015-05-25T23:48:44Z nyef: So, porting SBCL to ARM: Just over SIX YEARS of on-and-off effort.
2015-05-25T23:49:06Z stassats`: also, as fast as possible host and target devices help
2015-05-25T23:49:23Z stassats`: and 5 monitors?
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2015-05-25T23:49:42Z Quadrescence: i have contemplated going on a mission to actually document the internals of sbcl
2015-05-25T23:49:47Z Quadrescence: since documentation is awful
2015-05-25T23:50:27Z stassats`: half of it is just oral tradition
2015-05-25T23:50:34Z Quadrescence: yes that is awful
2015-05-25T23:50:36Z stassats`: imagine porting if you don't know much of internals
2015-05-25T23:51:57Z nyef: I learned quite a bit over the course of the ARM port. And logged most of it.
2015-05-25T23:52:03Z nyef: Feel free to mine my port logs.
2015-05-25T23:52:49Z stassats`: yeah, having worked on the arm32 port will help the arm64 port
2015-05-25T23:53:08Z stassats`: i imagine ppc64 will be a breeze after that
2015-05-25T23:53:31Z stassats`: so, the numbers are in, 12:32 for building sbcl
2015-05-25T23:53:31Z nyef: I still want dibs on mips64!
2015-05-25T23:53:46Z stassats`: was 29 minute galaxy s2
2015-05-25T23:57:23Z stassats`: so i guess that's as fast as it gets for now with ARM
2015-05-26T00:00:02Z stassats`: slime feels snappy
2015-05-26T00:03:33Z stassats`: now, how to become ultra smart
2015-05-26T00:08:30Z nyef: How can we make porting a simpler process? Supply a ROAD MAP. For each step of the way, show what needs to be done, where, and how to know that it was successful.
2015-05-26T00:09:20Z stassats`: it would be better if you could supply a really minimum list of primitives, and the rest of porting would be just optimization
2015-05-26T00:09:53Z nyef: Acknowledge that it's a pain in the ass, and has only been done, what, seven times before?
2015-05-26T00:10:09Z stassats`: that's what i'm going to do when i write my compiler, in ten or so years
2015-05-26T00:10:17Z stassats`: after i learn everything there is to learn from SBCL
2015-05-26T00:10:47Z nyef: With SBCL, that "really minimum" list isn't small.
2015-05-26T00:11:24Z stassats`: that's what it's not really a minimum
2015-05-26T00:11:40Z stassats`: hy
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2015-05-26T00:13:42Z nyef: The flipside, however, is the economics: How much effort is involved in documenting the process of bringing SBCL up on a new architecture, and how many people would actually directly benefit from the documentation?
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2015-05-26T00:14:20Z stassats`: the better documentation, the more people
2015-05-26T00:14:43Z nyef: Okay, yes, we're looking at maybe six more backends if we do 64-bit versions of all of the backends we have now.
2015-05-26T00:14:55Z nyef: But then what?
2015-05-26T00:15:11Z stassats`: somebody will invent a new ISA
2015-05-26T00:15:39Z stassats`: ... sbcl on llvm, sbcl on a stick
2015-05-26T00:15:51Z nyef: Commercially successful ISAs don't come around all that often.
2015-05-26T00:16:05Z nyef: Even short-term commercial success, which lets us count the Itanic.
2015-05-26T00:16:43Z stassats`: are you implying that all those 6 ports will be completed soon?
2015-05-26T00:17:22Z nyef: No, but name all of the people interested in working on a 64-bit version of the alpha backend, or any version of the HPPA or MIPS backend?
2015-05-26T00:17:37Z stassats`: [nyef]
2015-05-26T00:17:59Z nyef: Yeah, that's about the size of it.
2015-05-26T00:18:21Z nyef: And if that's not an exhaustive list, well, Fermi estimation rules apply.
2015-05-26T00:18:30Z stassats`: i'm only interested in the practical size of it, so, just x86 and ARM for me
2015-05-26T00:18:45Z stassats`: side
2015-05-26T00:19:13Z stassats`: and there's a ton of stuff to do beside porting
2015-05-26T00:19:50Z nyef: Mmm, while I'm more interested in reducing the drag from unmaintained and untestable backends, so x86 and ARM are some of the LEAST interesting options for me at this point. (-:
2015-05-26T00:20:16Z nyef checks on his MIPS debootstrap.
2015-05-26T00:20:26Z stassats`: also, porting to different OSes
2015-05-26T00:20:53Z nyef: Dibs on IRIX! (-:
2015-05-26T00:21:17Z stassats`: i once started doing AIX but stumbled on the assembler syntax
2015-05-26T00:22:10Z stassats`: getting read of assem.S would be nice
2015-05-26T00:22:18Z stassats`: maybe it'll open to compiling with things like MSVC
2015-05-26T00:22:47Z nyef: ... I shared that one tree where I'd moved the trampolines to static space with you, right?
2015-05-26T00:22:54Z stassats`: right
2015-05-26T00:22:56Z nyef: ... I shared with you that one tree...?
2015-05-26T00:23:10Z nyef: Okay, good.
2015-05-26T00:23:53Z nyef: Might not work anymore at this point, given all of the bootstrap hacking that occurred in the interim.
2015-05-26T00:25:04Z stassats`: all test that should have passed passed
2015-05-26T00:26:45Z stassats`: tidying up disassembly of arm32 will be a good project, will get a hang of it before starting on arm64
2015-05-26T00:28:01Z nyef: Getting that working in the first place was interesting.
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2015-05-27T18:06:24Z paines: hi
2015-05-27T18:06:39Z oleo: sup
2015-05-27T18:07:23Z paines: i got an raspberry pi2 and installed sbcl, found it comes without threads, then pulled the git sources, compiled via make.sh --fancy -> no threads.....
2015-05-27T18:07:30Z paines: any idea what I am doing wrong
2015-05-27T18:08:32Z Shinmera: You aren't implementing thread support on ARM!
2015-05-27T18:09:13Z paines: oh hi shinmera. we talked in london/elc. i confused you with another andy h.
2015-05-27T18:10:57Z paines: could you be a bit more specific,pls
2015-05-27T18:12:20Z paines: oh, thread support isn't done yet, i guess
2015-05-27T18:12:29Z oleo: eheh
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2015-05-27T18:22:49Z nyef: Not quite enough registers to make threads support particularly easy... And possibly not enough to make it POSSIBLE.
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2015-05-27T18:45:02Z stassats: nyef: if CSP is already in a variable, move CFP to a variable, i.e. into the thread struct?
2015-05-27T18:45:24Z stassats: or ns/fp
2015-05-27T18:46:16Z stassats: or would latter make interrupts more diffucult
2015-05-27T18:47:11Z nyef: If you move CFP to a variable, you make access to anything in the local frame more difficult.
2015-05-27T18:47:54Z stassats: it would work, not fast, but it would
2015-05-27T18:48:08Z nyef: I was considering pushing reg_NULL to be an offset-pointer-to-null rather than null itself, which makes static-space access slower, but gives us the PERFECT place for a TLS register.
2015-05-27T18:48:13Z stassats: not like accessing things is espcially easy on arm, with all the offset limits
2015-05-27T18:48:40Z nyef: Okay, there is that.
2015-05-27T18:51:43Z stassats: but interrupts only care about nsp, so, what about nfp?
2015-05-27T19:01:04Z nyef: Same logic for access to the local stack frame. /-:
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2015-05-27T19:10:56Z stassats: should happen less often?
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2015-05-27T19:12:53Z stassats: anyway, once it's ported to arm64 we can point people to the faster alternative
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2015-05-27T19:18:02Z stassats noticed that half of his mails to the current sbcl-devel@ thread are top-posted, and half are bottom-posted
2015-05-27T19:18:10Z stassats: i guess to appeal to both crowds
2015-05-27T19:37:25Z paines: thx, bye bye
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2015-05-27T20:19:40Z antoszka: burro: Za dużo information-leakó.
2015-05-27T20:20:03Z antoszka: Sorry, wrong channel :)
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2015-05-27T21:02:23Z antoszka: burro: On wie, co mói.
2015-05-27T21:02:39Z Xach: again!
2015-05-27T21:02:49Z stassats: apologies accepted
2015-05-27T21:03:04Z antoszka: Geez, sorry guys, my terminal emulator completely screws up altgr-w, turning it into alt-w, which takes me to the wrong channel ;)
2015-05-27T21:04:07Z antoszka: Switched to another one, shouldn't be happening anymore :)
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2015-05-28T08:48:32Z |3b|: hmm, (map-into (make-array 1 :element-type '(signed-byte 16)) (constantly nil))
2015-05-28T08:48:37Z |3b|: => #(11)
2015-05-28T08:53:11Z jdz: |3b|: what's wrong with that?
2015-05-28T08:54:34Z jdz: |3b|: would you prefer #(42)?
2015-05-28T08:54:41Z |3b| would prefer an error
2015-05-28T08:55:00Z |3b|: NIL is not a (signed-byte 16), as i would get from a SETf in a LOOP
2015-05-28T08:56:49Z |3b|: #(11) might be OK at safety 0, but probably not at default safety and definitely not at safety 3
2015-05-28T08:57:19Z jdz: but you did not pass in any sequences, so no setting is done, right?
2015-05-28T08:57:31Z |3b|: map-into doesn't need sequences
2015-05-28T08:58:37Z |3b|: (well, it needs a destination sequence, but no others)
2015-05-28T08:58:42Z |3b|: :initial-element 0 doesn't change the result though
2015-05-28T08:58:58Z jdz: |3b|: right you are, sorry for the noise
2015-05-28T08:59:17Z |3b|: and this is simplified from a (map '(vector (signed-byte 16)) ...) anyway, though that seems to only affect windows
2015-05-28T08:59:22Z jdz: " the iteration terminates when the shortest sequence (of any of the sequences or the result-sequence) is exhausted"
2015-05-28T09:03:18Z |3b|: (funcall (lambda (x) (map '(vector (signed-byte 16) 1) #'identity x)) '(1.0))
2015-05-28T09:03:24Z |3b|: => #(12) on windows
2015-05-28T09:03:35Z |3b|: errors as expected on linux
2015-05-28T09:05:23Z |3b|: filed as https://bugs.launchpad.net/sbcl/+bug/1459581
2015-05-28T09:10:47Z |3b| adds a TRUNCATE to original code and gets much more reasonable numbers
2015-05-28T09:12:08Z Xof: that is... an interesting bug
2015-05-28T09:14:04Z Xof: oh, right, there was a map/map-into rewrite
2015-05-28T09:14:58Z Xof: bah, and that's this cycle
2015-05-28T09:18:16Z Xof: the missing type check isn't immediately obvious to me
2015-05-28T09:18:46Z |3b|: might not be new, the map-into version happens on at least 1.2.7.54
2015-05-28T09:20:20Z |3b|: though i guess if one was rewritten in terms of the other, that might explain why one test case wasn't breaking on the (older) linux versions i testes
2015-05-28T09:20:23Z |3b|: *tested
2015-05-28T09:21:55Z Xof: yes
2015-05-28T09:23:20Z |3b|: possibly map-into broke some time between 1.0.25 and 1.0.58.55
2015-05-28T09:24:22Z |3b|: actually, maybe after 1.0.56.55
2015-05-28T09:24:32Z |3b|: (assuming it doesn't depend on *features*)
2015-05-28T09:28:28Z |3b|: looks like 1.0.58 contained some map-into optimizations, so that sounds plausible
2015-05-28T09:33:18Z |3b| is suspicious of the (safety 0)s in 892a8350 "widetag dispatch for MAP-INTO"
2015-05-28T09:39:09Z |3b|: yeah, (safety 0) in sb-impl::vector-map-into probably shouldn't include the SETF
2015-05-28T09:40:53Z |3b|: (map-into (cons 1 2) (constantly 'foo)) => EXCEPTION_ACCESS_VIOLATION
2015-05-28T09:41:03Z |3b| thinks the list case may need more SAFETY as well
2015-05-28T09:42:29Z |3b|: at least that probably doesn't affect MAP
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2015-05-28T15:20:11Z PuercoPop: Currently in SBCL class and slot options are processed ad-hoc and if not recognized are left as is (canonize-defclass-{options,slots}). The AMOP suggests usings a generic function to allow the extension/configuration of them. Is said extension something that SBCL developers would be interest in or are there objections to using generic functions in this case?
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2015-05-28T15:32:17Z nyef: That wouldn't be my area, certainly. stassats: Is PCL hacking something that you do?
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2015-05-28T15:34:21Z stassats: not usually
2015-05-28T15:34:32Z stassats: that would be more into Xof's territory
2015-05-28T15:35:05Z Xof: MY TERRITORY
2015-05-28T15:35:17Z Xof: ALL THESE WORLDS ARE YOURS, EXCEPT PCL.  ATTEMPT NO MODIFICATIONS THERE
2015-05-28T15:36:17Z brucem: I think that might be the first time I've seen someone want to deal with PCL.
2015-05-28T15:36:47Z Xof: you weren't around in the Gerd Möllman days?
2015-05-28T15:37:20Z brucem: nope.
2015-05-28T15:45:04Z PuercoPop: nyef: I meant interested in as in desirable, not as in 'would they like to do it'. I've checked ccl and cmucl and both appear to do the same that SBCL does, which appears problematic when extending slot options.
2015-05-28T15:47:02Z nyef: PuercoPop: Sure, but my reaction was more "I don't even have the background to evaluate the suggestion for plausibility, let alone desirability".
2015-05-28T15:47:25Z PuercoPop: ah ok
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2015-05-28T18:30:09Z pkhuong: Xof: "Grain Store, 1-3 Stable Street, London" <- do you know this location? I expect it's fairly fratty, but I hope I'm wrong (:
2015-05-28T18:30:57Z pkhuong: oh yeah. I'll be in London June 8-11 for advertising tech reasons.
2015-05-28T18:33:40Z Xach: fratty? sounds farmy
2015-05-28T18:40:21Z pkhuong: ouch.
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2015-05-28T19:59:41Z Xof: http://www.theguardian.com/lifeandstyle/2013/aug/10/restaurant-grain-store-london-review # sounds nice to me
2015-05-28T19:59:48Z Xof: if you have any time it would be great to meet
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2015-05-28T20:14:06Z pkhuong: I think I have Jun 10th free during the day.
2015-05-28T20:24:06Z Xof: you advertising types clearly know how to party hard
2015-05-28T20:24:10Z Xof: I have some time free on 10th
2015-05-28T20:24:28Z Xof: would you like to come and visit?
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2015-05-28T21:11:09Z pkhuong: sure, let's do it.
2015-05-28T21:12:17Z pkhuong: Now that I planned something for the 10th, I'm sure marketing will tell me I *must* show up for the non-technical track.
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2015-05-29T06:20:58Z psychehao: #join compiler
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2015-05-29T08:50:36Z jdz: Xof, pkhuong: damn, i have a flight in the evening of 10th. oh well, i was not invited, anyway :)
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2015-05-29T17:58:43Z |3b|: should restrict-compiler-policy always return a valid policy?
2015-05-29T17:59:11Z |3b|: currently it only does so if it has previously been called with a specific quality
2015-05-29T18:01:21Z |3b|: if so, it would be nice to have that in before next release, otherwise slime needs further fixed to deal with that edge case
2015-05-29T18:02:09Z |3b|: looks like docstring is wrong as well, it says it returns an alist, while it returns NIL or a POLICY
2015-05-29T18:08:02Z |3b| wonders what i did differently before that made it work
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2015-05-29T19:27:02Z dougk_: 3b: I think restrict-compiler-policy should return an alist as documented. It was an accident that its return value differs
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2015-05-29T19:29:32Z stassats: so, is slime still broken?
2015-05-29T19:29:48Z |3b|: i think so
2015-05-29T19:30:50Z |3b| is using locally patched copy, but i think i did same thing as what was committed
2015-05-29T19:31:17Z |3b|: thought it worked, but now it doesn't, so might have broke something else
2015-05-29T19:31:35Z |3b|: or i fixed it differently before and didn't save it, dunno
2015-05-29T19:32:40Z |3b| isn't sure how to fix slime if sbcl goes back to returning an alist
2015-05-29T19:32:44Z dougk_: just to clarify, you don't need to poke at *policy-restrictions* directly, as long as the result is a list ?
2015-05-29T19:33:23Z |3b|: right now, slime uses (restrict-compiler-policy) to get a policy to pass to policy-quality
2015-05-29T19:33:25Z dougk_: and are you saying that you do or don't like the list representation ?
2015-05-29T19:33:38Z |3b| is saying i have no idea whats going on :p
2015-05-29T19:33:53Z |3b|: actually, i guess returning an alist might work if the fix to slime is reverted?
2015-05-29T19:34:19Z |3b|: since it only used policy-quality because restrict-compiler-policy was returning a policy
2015-05-29T19:35:16Z dougk_: ok, so the problem with putting it back to a list is that a list isn't the right thing to pass to policy-quality.
2015-05-29T19:35:33Z dougk_: dunno which way is the best fix
2015-05-29T19:35:53Z stassats: bloody Ctrl-C on windows is mystifying me
2015-05-29T19:36:11Z stassats: it works for some people sometimes, never worked for me, and works for me with a test C program
2015-05-29T19:36:32Z stassats: catching it
2015-05-29T19:37:01Z |3b|: returning an alist or always returning a policy both sound reasonable to me, but i've only looked at it to the point of fixing slime
2015-05-29T19:38:08Z |3b| uses Ctrl-c to exit, so i guess i'm in the "never worked" group :/
2015-05-29T19:39:11Z stassats: it's not supposed to just exit
2015-05-29T19:39:40Z stassats: i wonder what will happen if i turn the C program into a shared library and call it
2015-05-29T19:43:34Z stassats: doesn't work either
2015-05-29T19:46:31Z dougk_: one one hand I think it makes sense to return a policy object since swank wants to use it as an argument to policy-quality; on the other I wish I hadn't changed the return convention by accident
2015-05-29T19:46:55Z stassats: you can still change it back
2015-05-29T19:47:10Z dougk_: right, but then how would swank call policy-quality on that ?
2015-05-29T19:48:06Z stassats: how did it do that before?
2015-05-29T19:48:21Z dougk_: it used (cdr (assoc ...)) directly
2015-05-29T19:48:32Z dougk_: leaky abstraction
2015-05-29T19:52:11Z |3b|: it only calls policy-quality because of the change, so if it starts returning an alist again, the slime change can be reverted as well, and i think stuff would work again
2015-05-29T19:52:51Z dougk_: i'll ask Luis if that's the preferred solution. either way works
2015-05-29T19:53:27Z |3b| suspects slime doesn't care, so if changing the return was not intended, putting it back is probably best 
2015-05-29T19:53:43Z stassats: if you're providing a supported interface, then that would be preferred
2015-05-29T19:53:52Z stassats: so, sb-ext:policy-quality
2015-05-29T19:54:12Z stassats: otherwise, the preferred solution would be not to change anything if you don't have ot
2015-05-29T19:55:00Z nyef: stassats: You're messing with the SetConsoleCtrlHandler() thing?
2015-05-29T19:55:13Z stassats: nyef: no, it is messing with me
2015-05-29T19:55:19Z nyef: Ah.
2015-05-29T19:55:34Z nyef: So, IIRC, the handler tends to run in a freshly-started thread, just for it.
2015-05-29T19:55:46Z nyef: But that may depend on which windows version is involved.
2015-05-29T19:56:04Z nyef: That's the main quirk that I remember about it.
2015-05-29T19:56:32Z stassats: well, even a C program, which works on its own, doesn't catch it
2015-05-29T19:56:36Z nyef: (Probably also would be why I seem to recall making the call to just disable the damned thing, rather than trying to do anything clever.)
2015-05-29T19:56:50Z stassats: so the environment affects it
2015-05-29T19:59:53Z stassats: where is strace for windwos
2015-05-29T20:01:42Z nyef: Hmm? I'm fairly sure there IS one.
2015-05-29T20:02:04Z nyef: Actually, with windows you typically want to watch the DLL boundaries, not the actual system calls.
2015-05-29T20:02:11Z Xach: I'm seeing a weird failure in clim-widgets (a new project) that looks like it shows some sbcl internals.
2015-05-29T20:02:14Z Xach: http://report.quicklisp.org/2015-05-29/failure-report/clim-widgets.html#clim-widgets
2015-05-29T20:04:46Z stassats: found some thingy, so a thread is indeed created
2015-05-29T20:04:58Z nyef: Looks like its trying to funcall stuff with the wrong number of arguments, and define methods specialized on classes that haven't been defined yet?
2015-05-29T20:05:14Z stassats: but it exits promptly
2015-05-29T20:05:59Z nyef: I'm guesing on the specializer / not-defined class thing.
2015-05-29T20:06:44Z nyef: But the "called with two arguments" things are all forms ((lambda (arg) ...) s x).
2015-05-29T20:07:16Z nyef: The specializer things are all STYLE-WARNINGs, so they're not causing the build failure.
2015-05-29T20:09:13Z Xach: the SB-C::CLAMBDA thing is a new failure mode to me
2015-05-29T20:10:30Z |3b|: yay, LOL inspired code and undecorated specials :/
2015-05-29T20:11:13Z nyef: On the one hand, it's nice to see CLIM stuff. On the other hand, it's inspiring me to not look at the code.
2015-05-29T20:11:59Z dougk_: Xach: what system is that? I did an update-all-dists and a quickload of 'mcclim' but have no file named cw-test.lisp
2015-05-29T20:12:53Z Xach: dougk_: it's a new project, the github url is at the top of that html page
2015-05-29T20:19:02Z nyef: So, looking at the first full warning shown leads me to line 93 or 94 of cw-test.lisp.
2015-05-29T20:19:13Z nyef: And... it's line noise!
2015-05-29T20:19:42Z |3b|: yeah, reader macro that uses some defmacro! thing, haven't figured out what that is supposed to do yet
2015-05-29T20:20:42Z nyef: I'm going to go with "it's supposed to consume the final #\s on the input stream, but doesn't".
2015-05-29T20:20:52Z |3b|: plausible
2015-05-29T20:21:58Z |3b| forgot to mention undocumented single-character argument names
2015-05-29T20:21:58Z Xach: is there any way to get a different, potentially more helpful error?
2015-05-29T20:22:11Z |3b|: rewrite the code?
2015-05-29T20:22:24Z nyef: But a few lines later, one of the two escaped sequences shows up again, identically, and the compiler doesn't bat an eye.
2015-05-29T20:22:38Z nyef: Oh, wait. My bad.
2015-05-29T20:22:41Z nyef: It bitches there, too.
2015-05-29T20:23:02Z Xach: I just have never seen SB-C::CLAMBDA errors that I can remember
2015-05-29T20:23:37Z nyef: Probably because it's a bare ((lambda (...) ...) ...) form, which is bleeding rare.
2015-05-29T20:24:08Z |3b|: yeah, that was my guess too
2015-05-29T20:25:42Z |3b|: looks like it should try to read the s
2015-05-29T20:25:42Z nyef: ... Is LoL just a "tour de farce" of lisp metaprogramming or something?
2015-05-29T20:26:51Z nyef: Yes, that's the conclusion that I came to about five minutes ago.
2015-05-29T20:28:19Z |3b|: ah, i wonder if new backquote stuff confuses ,',g!s
2015-05-29T20:28:47Z nyef: Wouldn't surprise me, but that's not our problem if it is.
2015-05-29T20:29:14Z |3b|: or would that be wrong way around, that would make it want 2 args instead of 1
2015-05-29T20:33:19Z nyef: Remember, LoL abuses "classic" quasiquote behavior, which is absolutely NOT guaranteed by the standard. If it breaks because we changed something, it's not our problem.
2015-05-29T20:34:55Z |3b|: hmm, seems to be READing as something reasonable
2015-05-29T20:37:01Z nyef: (compile nil '(lambda (x) ((lambda () (+ x 1)) x)))
2015-05-29T20:37:22Z nyef: Fairly small test case to reproduce the CLAMBDA bit with.
2015-05-29T20:37:59Z nyef: And... Heh. Doesn't even COMPILE on 1.0.23.
2015-05-29T20:38:18Z nyef: Apparently, The value NIL is not of type SB-C::NODE.
2015-05-29T20:38:45Z nyef: But there's also no CLAMBDA bit, so that much is more recent.
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2015-05-29T20:39:10Z |3b|: all that metaprogramming and they still leave (if (find #\g "g") ...) in the expansion :p
2015-05-29T20:41:27Z nyef: On the one hand, I wonder when the clambda thing started showing up in the warning message.
2015-05-29T20:41:39Z nyef: On the other, I don't know that I want to take the time to bisect to find out.
2015-05-29T20:43:31Z dougk_: so, while I was at it, I found that every use of restrict-compiler-policy causes all declarations other than the restriction to warn you that there was a duplicately specified quality. How polite of us. Not.
2015-05-29T20:51:39Z |3b|: ok, i guess it READs correctly from C-c C-c, but not from C-c C-k
2015-05-29T20:53:14Z Xof: I sem to recall negotiating the LoL people into fixing their repo
2015-05-29T20:53:19Z Xof: stuff inspired by it, though...
2015-05-29T20:55:45Z |3b|: ok, now it is READing wrong either way
2015-05-29T20:56:08Z |3b| wonders if i did something different the first time or if it just broke on its own
2015-05-29T20:58:42Z |3b|: nope, in a fresh lisp it works until i C-c C-k
2015-05-29T20:59:28Z |3b|: or compile-file
2015-05-29T20:59:54Z |3b| wonders how they managed that, self-modifying macros or something?
2015-05-29T21:00:29Z |3b|: after compile-file it doesn't have the (if (find ...) ...) anymore too
2015-05-29T21:08:49Z |3b|: ah, it isn't even using the line-noise reader it defines, obviously
2015-05-29T21:10:29Z |3b|: and the one it uses is under #+cl-ppcre, suggesting it might or might not work depending on load order
2015-05-29T21:13:56Z |3b|: Xach: looks like clim-widgets bug, it uses #~ reader from lol-syntax readrable rather than the one it defines
2015-05-29T21:16:38Z Xach: |3b|: thanks, added it to the issue on github
2015-05-29T21:17:31Z |3b|: *readtable
2015-05-29T21:20:56Z stassats: huh, slime now decides to start with sb-win32 package
2015-05-29T21:21:11Z stassats: oh, .sbclrc
2015-05-29T21:24:06Z stassats: ok, progress, did (setf sb-ext:*init-hooks* (remove 'sb-win32::initialize-console-control-handler sb-ext:*init-hooks*)) before saving an image
2015-05-29T21:24:33Z stassats: then did image --load callSetConsoleCtrlHandler-from-c
2015-05-29T21:24:35Z stassats: that worked
2015-05-29T21:30:25Z stassats: when i pass that thing a callback, Ctrl+Break works, but Ctrl+C doesn't
2015-05-29T21:32:28Z stassats: Ctrl+c works too
2015-05-29T21:32:45Z stassats: so, somehow calling SetConsoleCtrlHandler from lisp is wrong
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2015-05-29T21:48:09Z stassats: so, a wrapper then
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2015-05-29T22:19:52Z stassats: now it seems to work without a wrapper, but not always and it exits
2015-05-29T22:25:57Z stassats: so it's always called when the thread is in (loop)
2015-05-29T22:28:15Z nyef: We're not seeing another crazy D-flag thing, or SEH frame corruption, are we?
2015-05-29T22:28:47Z stassats: a moment ago it seemed to work fine
2015-05-29T22:29:00Z stassats: in my test routines, now everything fell apart
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2015-05-29T22:32:59Z nyef: Definitely reminds me of the D-flag thing.
2015-05-29T22:33:11Z stassats: ok, it works if i remove sb-win32::initialize-console-control-handler from init-hooks
2015-05-29T22:33:22Z stassats: then call it from test.lisp and then it has a  (loop)
2015-05-29T22:33:31Z nyef: ("Calling MessageBoxA() from the REPL blows up, but if the compiler gets involved it's fine?!?")
2015-05-29T22:36:21Z stassats: with i-c-c-h in init-hooks, it gets called but it exits before it can do anything
2015-05-29T22:36:31Z stassats: this is seriously stupid
2015-05-29T22:37:30Z stassats: ok-ok
2015-05-29T22:37:41Z stassats: init-hooks are called before repl, or after?
2015-05-29T22:37:47Z nyef: Before, aren't they?
2015-05-29T22:38:02Z stassats: i meant --load
2015-05-29T22:38:15Z stassats: but repl handles --load
2015-05-29T22:38:30Z nyef: Hrm. I'd've expected still before, but it occurs to me that there's --no-userinit and whatnot to deal with.
2015-05-29T22:38:36Z stassats: calling i-c-c-h twice doesn't work
2015-05-29T22:38:47Z nyef: That's all in SYS:SRC;CODE;TOPLEVEL.LISP isn't it?
2015-05-29T22:39:05Z |3b|: how about 3 times, with middle one clearing it instead of setting?
2015-05-29T22:39:24Z stassats: |3b|: nope
2015-05-29T22:40:06Z nyef: Have you read the documentation for SetConsoleCtrlHandler?
2015-05-29T22:40:17Z stassats: about fifty times
2015-05-29T22:40:24Z stassats: in different directions
2015-05-29T22:40:30Z stassats: also mirrored
2015-05-29T22:42:36Z nyef: Are we using the combination of parameters NULL, TRUE for any call to SetConsoleCtrlHandler?
2015-05-29T22:42:57Z nyef: Seems like something I'd've done, at least.
2015-05-29T22:43:05Z stassats: well, the same exact call works if it's done in a test.lisp from --load
2015-05-29T22:43:17Z stassats: but not if it's before entering top-level
2015-05-29T22:44:06Z nyef: What if it's before reading from the console handle for the first time?
2015-05-29T22:45:07Z stassats: a c program i have doesn't read anything and works
2015-05-29T22:46:43Z stassats: having (lambda () (sb-win32::initialize-console-control-handler) (loop)) as a top-level doesn't work
2015-05-29T22:48:12Z stassats: but with i-c-c-h C-c doesn't do anything, without it the process exits
2015-05-29T22:48:39Z stassats: what the hell, each combination does different things
2015-05-29T22:49:28Z nyef: Wait, WHAT? check the definition of set-console-ctrl-handler against the spec. Where's the second parameter?
2015-05-29T22:50:07Z stassats: on the right?
2015-05-29T22:50:20Z nyef: Hrm.
2015-05-29T22:50:29Z nyef: Doing a git pull in case it changed recently.
2015-05-29T22:50:34Z nyef: ... Not seeing it.
2015-05-29T22:50:59Z nyef: Ah, okay, now I see it.
2015-05-29T22:51:02Z nyef: Ugh.
2015-05-29T22:53:02Z nyef: We're not lazy-mapping static-space, are we?
2015-05-29T22:53:22Z stassats: ok, now i set my own callback and it works in this case
2015-05-29T22:53:38Z stassats: so, is it ignore-errors?
2015-05-29T22:54:32Z stassats: now i can't exit
2015-05-29T22:54:46Z stassats: it catches Ctrl+Break
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2015-05-29T22:59:25Z stassats: ok, (lambda () (sb-win32::initialize-console-control-handler) (loop)) catches the signal but doesn't interrupt anything
2015-05-29T23:00:21Z stassats: but that doesn't happen with top-level-init
2015-05-29T23:03:33Z stassats: hell, :toplevel (sb-win32::initialize-console-control-handler)
2015-05-29T23:03:34Z stassats:                               (SB-IMPL::TOPLEVEL-INIT)
2015-05-29T23:03:36Z stassats: works
2015-05-29T23:04:48Z stassats: this is ridiculous
2015-05-29T23:06:24Z stassats: removing i-c-c-h and the pushing it again works too
2015-05-29T23:08:20Z stassats: or not removing it but just pushing again
2015-05-29T23:09:44Z stassats: wait, init-hooks are empty for some reason
2015-05-29T23:09:49Z stassats: that makes a bit more sense
2015-05-29T23:10:11Z stassats: was using the wrong image
2015-05-29T23:12:43Z stassats: ok, a saved image gets interrupted with --eval '(loop)', but ./run-sbcl.sh doesn't
2015-05-29T23:14:10Z stassats: ./src/runtime ... gets interrupted as well
2015-05-29T23:14:49Z stassats: run-sbcl.sh runs from shell?
2015-05-29T23:16:21Z stassats: i think now i see the picture, running from shell borks C-c, and for C-c to run it needs to execute some user-space code
2015-05-29T23:17:15Z stassats: incidentally, (read-line) from cmd.exe doesn't work
2015-05-29T23:18:11Z stassats: at least i know what's going on
2015-05-29T23:19:02Z stassats: or rather, when it works and when it doesn't
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2015-05-30T18:05:41Z stassats: no more float consing when doing things like (print 2d0)
2015-05-30T18:06:14Z stassats: and sbcl now can be run under 64-bit arm kernels
2015-05-30T18:06:41Z stassats: and this will make it easier for porting to things like arm windows
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2015-05-30T19:04:27Z attila_lendvai: bah, I thought I fixed a bug in asdf but then I realized I did not upgrade the ages old asdf in sbcl and just merely re-fixed something already fixed
2015-05-30T19:33:15Z oleo: is there a way to increas binding-stack ?
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2015-05-30T19:38:25Z nyef: oleo: Yes-and-no. I'd be somewhat surprised if you managed to blow out your binding stack, but the size is controlled by some constants in the thread code in the runtime.
2015-05-30T19:38:30Z nyef: ... IIRC, that is.
2015-05-30T19:39:51Z oleo: http://paste.lisp.org/display/148848
2015-05-30T19:40:25Z stassats: sb-doc is enabled by default
2015-05-30T19:40:32Z oleo: i compiled a non-standard sbcl maybe, but everything went fine with that feature list (at least for compiling) but at load time when loading my usual packages, something went wrong
2015-05-30T19:40:41Z stassats: and so is sb-ldb, not sure why you need sb-hash-table-debug
2015-05-30T19:40:50Z oleo: hmmm
2015-05-30T19:40:52Z stassats: sb-unicode, sb-eval and sb-package-locks are default too
2015-05-30T19:41:00Z stassats: that declaim optimize doesn't do anything
2015-05-30T19:41:03Z oleo: :sb-show and :sb-fluid failed tho
2015-05-30T19:41:14Z stassats: sb-fluid doesn't work
2015-05-30T19:41:20Z oleo: ok
2015-05-30T19:41:29Z stassats: ash-right-vops and 32x16-divide are not yours to push
2015-05-30T19:41:56Z oleo: it's not told which arch for, and i tested it
2015-05-30T19:42:24Z oleo: i'm on x86_64
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2015-05-30T19:42:54Z oleo: 32x15-divides just tells it's not for x86 that's all
2015-05-30T19:43:04Z oleo: err sorry for the typo
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2015-05-30T19:43:22Z stassats: so, you basically put things there without knowing?
2015-05-30T19:44:11Z oleo: i didn't touch anything wich was on autoselect basis, just the ones i wasn't sure about if they'd work
2015-05-30T19:44:35Z |3b|: "hey, this might breaks things, lets enable it!" :)
2015-05-30T19:44:49Z oleo: well i said the compilation itself went fine!
2015-05-30T19:45:00Z stassats: :sb-qshow :sb-thread :sb-core-compression :sb-safepoint :sb-thruption :sb-wtimer are the only things you may want to push
2015-05-30T19:45:11Z stassats: and sb-qshow is really only useful for debugging sbcl itself
2015-05-30T19:45:14Z |3b|: did you run the tests?
2015-05-30T19:45:20Z oleo: yes
2015-05-30T19:45:28Z oleo: the tests was successfull
2015-05-30T19:45:34Z stassats: other things are either already enabled, or are not meant to be pushed by the user
2015-05-30T19:46:04Z oleo: the error happens in the swank package....
2015-05-30T19:46:38Z |3b|: so maybe it didn't work, and you should listen to the devs?
2015-05-30T19:47:21Z |3b|: or at least reproduce the problem on a supported configuration before asking them for help
2015-05-30T19:47:35Z oleo: or maybe i have stale stuff, wait lemme clear old stuff.....
2015-05-30T19:47:45Z |3b|: (if you can't tell which configurations are supported, asking about that is reasonable too, though you might just be pointed to docs if they exist)
2015-05-30T19:47:48Z oleo: and one thing, tho, my gray.fasl was empty!
2015-05-30T19:48:32Z stassats: the best way is not to touch customize-target-features at all
2015-05-30T19:48:45Z stassats: for linux-x86-64, everything you need is enabled
2015-05-30T19:48:55Z oleo: well, what i actually wanted was one without signals .....
2015-05-30T19:49:18Z stassats: without signals?
2015-05-30T19:49:20Z oleo: :sb-safepoint thruption and wtimer actually
2015-05-30T19:49:44Z oleo: but i wanted to see which of the other features were compatible to it....
2015-05-30T19:49:53Z stassats: why do you want sb-safepoint?
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2015-05-30T20:19:21Z stassats: so, sbcl broke slime and the fixed slime is not yet released?
2015-05-30T20:20:09Z |3b|: i think sbcl unbroke slime
2015-05-30T20:20:21Z |3b|: if you mean the C-u C-c C-c thing
2015-05-30T20:21:06Z stassats: C-c C-c doesn't work here at all
2015-05-30T20:21:40Z |3b| hasn't had problems with normal C-c C-c on slime from last month's quicklisp
2015-05-30T20:21:50Z |3b|: (which i think is still current quicklisp)
2015-05-30T20:22:06Z stassats: my slime is a bit older than that
2015-05-30T20:23:16Z stassats: oh right, it's not slime
2015-05-30T20:23:31Z stassats: (sb-ext:restrict-compiler-policy) is an error
2015-05-30T20:24:58Z |3b|: it is?
2015-05-30T20:25:34Z |3b|: that sounds at least related to the C-u C-c C-c thing, but i didn't think that affected C-c C-c
2015-05-30T20:26:01Z stassats: of course nobody got a chance to test the day-before-release change
2015-05-30T20:26:52Z |3b|: ah, did the fix neglect to make sure it was a policy?
2015-05-30T20:27:14Z stassats: i don't know what it neglected, but it doesn't work anymore
2015-05-30T20:27:30Z |3b|: is the error about NIL not being a policy?
2015-05-30T20:27:37Z |3b|: in policy-to-decl-spec
2015-05-30T20:28:06Z stassats: yes
2015-05-30T20:28:20Z |3b|: that's probably it then :/
2015-05-30T20:29:43Z |3b| would probably just initialize *policy-restrictions* to a policy and get rid of the on-demand allocation, but alternate fix would be to check for NIL in restrict-compiler-policy or policy-to-decl-spec
2015-05-30T20:30:40Z stassats: well, fixing is easy, but we got a release which doesn't work with slime
2015-05-30T20:30:51Z |3b|: slime-side workaround would be to call restrict-compiler-polict with an argument at some point before calling it without
2015-05-30T20:31:27Z stassats: a slime-side workaround is easy, but it has to be released and go through quicklisp
2015-05-30T20:31:42Z |3b| should probably stop saying obvious things :)
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2015-05-30T20:33:08Z stassats: each time there's a change after the freeze, we get a broken release
2015-05-30T20:33:35Z stassats: so, if it's truly a regression fix, there should be a grace period of no changes before the release
2015-05-30T20:34:14Z Xof: what we probably need is a release manager who actually uses the damn software
2015-05-30T20:35:16Z stassats: |3b|: can you do an announcement in #lisp that anyone having problems with the latest SBCL should put (sb-ext:restrict-compiler-policy 'debug 0) into ~/.sbclrc
2015-05-30T20:36:48Z Shinmera: Does a higher number work too?
2015-05-30T20:37:00Z stassats: mentioned that on the /r/lisp thread
2015-05-30T20:37:09Z |3b|: any value will work, but 0 doesn't change anything
2015-05-30T20:37:10Z stassats: Shinmera: not with the same semantics as not putting it there
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2015-05-30T20:37:32Z Shinmera: Right. I'm just asking because I have it restricted to 3 in my .sbclrc already anyway.
2015-05-30T20:37:45Z stassats: i always have 'debug 2, i wouldn't have caught it anyway
2015-05-30T20:38:41Z Xof: second-best: including test cases in our test suite
2015-05-30T20:39:16Z stassats: it's hard to include test cases for not yet discovered bugs
2015-05-30T20:39:37Z nyef: It's easier to include test cases for documented functionality, though.
2015-05-30T20:40:11Z |3b|: easy to miss that you need to test for the case where it hasn't been used yet though
2015-05-30T20:41:33Z nyef: Easy to only document as being supported the cases that you actually have tests for.
2015-05-30T20:42:35Z |3b|: and only if you use it in the same order as the tests?
2015-05-30T20:42:53Z nyef: Something like that.
2015-05-30T20:43:04Z Xof: when we're changing something -- particularly in response to a regression bug report -- that's when stopping and writing a bunch of tests is most useful
2015-05-30T20:43:17Z Xof: oh well.  See you next month
2015-05-30T20:43:33Z stassats: a workaround is easy
2015-05-30T20:43:42Z stassats: just need to spread the knowledge
2015-05-30T20:43:53Z stassats: anyone with tv connections?
2015-05-30T20:44:48Z |3b|: stassats: might add the specific error message to that reddit post so google can find it
2015-05-30T20:46:42Z stassats: good idea
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2015-05-30T21:34:38Z stassats: alright, windows got my share of love
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2015-05-30T22:13:33Z stassats: fixed three |3b| tickets in a row
2015-05-30T22:14:09Z stassats: i have to either stop or fix 56 more
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2015-05-30T22:20:50Z |3b|: https://bugs.launchpad.net/sbcl/+bug/1459581 is possibly easy and relatively bad if you want another :)
2015-05-30T22:21:57Z stassats: not today
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2015-05-30T23:26:54Z attila_lendvai1: it's not possible to use eval-when in --script?
2015-05-30T23:27:19Z attila_lendvai1: I have a (require :swank) and yet, it fails with package not found
2015-05-30T23:29:19Z Bike: like, you have (eval-when (:compile-toplevel ...) (require :swank)) (swank:whatever ...)?
2015-05-30T23:31:51Z attila_lendvai1: yes, but I think it's something else, because since then I realized I do the same with asdf
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2015-05-31T10:49:17Z |3b|: stassats: the "~a" in dbg-printexception-c is important, if the first argument to WARN is a string it is treated as a format control string, and the lib i'm using sends things like ~76.4% which format doesn't like
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2015-05-31T11:13:36Z stassats: i had an ~a, didn't i?
2015-05-31T11:14:10Z stassats: well, i got the wrong diff from windows
2015-05-31T11:16:52Z stassats: |3b|: it's back on
2015-05-31T11:19:27Z |3b|: cool, building now
2015-05-31T11:20:49Z stassats: also, on x86, the debug message isn't caught
2015-05-31T11:23:22Z stassats: not important, i guess, at least it doesn't cause an error
2015-05-31T12:24:07Z stassats: great, my test doesn't fail in the test suite
2015-05-31T12:24:16Z stassats: while it fails when run separatly
2015-05-31T12:27:39Z stassats: of course naming functions FOO in impure tests is a bad idea
2015-05-31T12:34:16Z |3b|: that reminds me, i should kill the locked SBCl so the rest of the tests can try to finish
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2015-05-31T13:22:12Z stassats: auditing all usages of specifier-type in the compiler
2015-05-31T13:22:31Z stassats: which should be compiler-specifier-type for arbitrary types
2015-05-31T13:23:21Z stassats: stuck on the coerce derive-type, can't figure it's second leg
2015-05-31T13:23:33Z |3b|: stassats: did you fix the CONS case of the map/map-into bug?
2015-05-31T13:23:52Z stassats: which cons case?
2015-05-31T13:24:19Z |3b|: (map-into (cons 1 2) (constantly 'foo))
2015-05-31T13:25:12Z stassats: no
2015-05-31T13:30:06Z stassats: ok, looks like coerce derive-type is broken indeed
2015-05-31T13:39:16Z stassats: in more ways than one
2015-05-31T13:39:32Z stassats: (eql 1 (member-type-members car-type)) instead of  (eql 1 (member-type-size car-type))
2015-05-31T13:39:43Z stassats: expecting integer types to be member-types
2015-05-31T13:41:03Z stassats: and for what? i think it's pretty useless
2015-05-31T13:43:45Z stassats: the first part of integer-type-numeric-bounds implies the name numeric-type-bounds
2015-05-31T13:49:38Z stassats: nah, the second part of coerce-derive-type is hopeless
2015-05-31T13:50:15Z stassats: and it's never used for what it's intended
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2015-05-31T13:55:47Z stassats: ;; See messages on cmucl-imp 2001-02-14 and sbcl-devel 2002-12-12.
2015-05-31T13:55:51Z stassats: yeah, good luck finding that
2015-05-31T14:00:26Z stassats: :SEMAPHORE-NOTIFICATION :WAIT-ON-SEMAPHORE tends to hang more often than previously
2015-05-31T14:01:49Z stassats: stracing it allows to move forward
2015-05-31T14:21:08Z stassats: constant-lvar-p is lying too ;; check for EQL types (but not singleton numeric types)
2015-05-31T14:21:28Z stassats: it does check for singleton numeric types
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2015-05-31T17:41:04Z stassats:  bloody instruction definition macros getting on my nerves
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2015-05-31T18:03:23Z stassats: and there was some incantation for reloading instructions
2015-05-31T18:03:33Z stassats: this is annoying, why doesn't it just work
2015-05-31T18:05:50Z stassats:  ok, that'd be (SB-DISASSEM::get-inst-space :force t)
2015-05-31T18:05:57Z stassats: which says "Instructions either aren't related or conflict in some way:"
2015-05-31T18:05:59Z stassats: gee thanks
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2015-05-31T18:29:04Z stassats: got 211A30EE         FADDS S2, S0, S3
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2015-05-31T21:25:03Z stassats: got almost all FP instructions, except for load/stores
2015-05-31T21:25:31Z stassats: because their define-instruction is too colliding
2015-05-31T21:28:13Z stassats: i think i got a hang of how to disassemble and assemble instructions
2015-05-31T21:28:36Z stassats: except that the doing it at runtime is still not convenient
2015-05-31T21:28:43Z stassats: and there's a lot of boilerplate
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2015-05-31T21:52:31Z Quadrescence: stassats, can you figure out the proper way to incorporate the random instruction?
2015-05-31T21:52:51Z Quadrescence: i gave up on SBCL when I couldn't figure out how to disassem it
2015-05-31T21:53:07Z Quadrescence: #'GIVE-UP-SBCL-HACKING
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2015-05-31T21:54:52Z Quadrescence: stassats, https://bitbucket.org/tarballs_are_good/lisp-random/raw/2d0cccb92f5f97dd7524245139d9fcda1955ef3f/rdrand.lisp
2015-05-31T21:54:55Z Quadrescence: :)
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2015-05-31T21:56:41Z stassats: i can help you some time
2015-05-31T21:56:58Z stassats: not today though
2015-05-31T21:57:09Z Quadrescence: cool ok
2015-05-31T21:57:22Z Quadrescence: disasstassats
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