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2014-10-09T11:00:05Z Krystof: (push (eval `(eval `(list ...)))) ; argh
2014-10-09T11:01:14Z ams: pretty
2014-10-09T11:01:14Z flip214: what in C gets called a three-star-programmer, is in lisp a three-backquote or double-eval programmer ...
2014-10-09T11:01:31Z ams: thee backquotes ain't that bad ..
2014-10-09T11:02:00Z Krystof: this insanity leads to CACHED-FUN--MOV[(SIMPLE-DIR ((OP 40) (IMM NIL TYPE (QUOTE IMM-ADDR))) (QUASIQUOTE (NAME TAB #S(SB!IMPL::COMMA :EXPR (SWAP-IF # # ,  #) :KIND 0))))]-SIMPLE-DIR-PRINTER
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2014-10-09T11:10:04Z |3b| would say number of , is the problem, not number of `
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2014-10-09T11:21:50Z flip214: |3b|: number of , is limited by number of `
2014-10-09T11:23:07Z |3b|: flip214: right, but single , are usually pretty obvious even if deeply nested in `
2014-10-09T11:24:04Z flip214: yeah, right.
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2014-10-09T13:44:26Z flip214: christoph_debian: thanks for 1.2.4!
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2014-10-09T14:06:34Z stassats: unexpect forwarding pointer in scavenge: 0x102b5c80a0, start=0x102b5c8000, n=2101250 caught alive
2014-10-09T14:13:25Z stassats: http://paste.lisp.org/display/143983
2014-10-09T14:16:32Z stassats: so, all those are lists
2014-10-09T14:18:40Z stassats: from scavenge_newspace_generation_one_scan(1)
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2014-10-09T14:25:09Z stassats: and there was a fault at 15
2014-10-09T14:28:03Z stassats: and that would be output-ugly-object
2014-10-09T14:36:43Z stassats: seems to die at (sb!kernel::undefined-classoid-p (layout-classoid (layout-of object)))
2014-10-09T14:36:51Z stassats: specifically, layout-classoid
2014-10-09T14:36:59Z stassats: i presume that layout-of returns garbage
2014-10-09T14:39:44Z stassats: actually, that would be sb!kernel::undefined-classoid-p
2014-10-09T14:39:52Z stassats: dies at MOV RAX, [RBX+5]
2014-10-09T14:39:56Z stassats: so, RBX is 10
2014-10-09T14:40:12Z stassats: layout-classoid returns 10? huh
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2014-10-09T14:43:50Z stassats: or a fixnum 5
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2014-10-09T14:59:01Z stassats: so, it has an instance pointer with type NIL
2014-10-09T14:59:19Z stassats: the list pointed by the forwarding pointer
2014-10-09T15:00:45Z stassats: probably the memfault is not the cause
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2014-10-09T16:26:31Z reb: stassats: There seems to be a bug in the deftransform for concatenate.  Is there an easy way for me to hand a form to the compiler and have it print what it transforms into?
2014-10-09T16:26:50Z stassats: not really
2014-10-09T16:27:04Z stassats: at least i'm unaware of such a thing
2014-10-09T16:27:23Z stassats: you can just show the code where it fails
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2014-10-09T16:29:08Z reb: (defun foo () (declare (optimize (speed 3) (safety 0))) (concatenate 'string "a" "b"))
2014-10-09T16:29:31Z stassats: indeed
2014-10-09T16:30:02Z reb: I think it's something wrong with FIRST-CONSTANTS in the loop ....
2014-10-09T16:36:35Z stassats: reb: got it fixed, gotta it run through a build. thanks
2014-10-09T16:40:43Z reb: great!
2014-10-09T16:41:50Z reb: There's a Launchpad bug:  https://bugs.launchpad.net/sbcl/+bug/1334794
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2014-10-09T16:44:46Z |3b| runs out of stack compiling a 512 element LIST form in a LET with lots of variables
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2014-10-09T16:54:15Z |3b| tried to simplify it and simplified version was up to 5gb before i killed it :p
2014-10-09T16:55:19Z |3b|: and that was before it even figured out i used LET instead of LET* so most of the variables were undefined
2014-10-09T16:55:41Z stassats: easy, just don't use such large lets
2014-10-09T16:56:05Z |3b|: well, it is slow just compiling the list form (~20 sec)
2014-10-09T16:56:42Z stassats: or the list form
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2014-10-09T16:56:48Z stassats: i can imagine what it compiles down to
2014-10-09T16:56:59Z |3b| supposes i could add a pass to figure out how many variable are actually live and only generate that many variables
2014-10-09T16:57:28Z |3b|: not that i really care about evaluating it with SBCL anyway though
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2014-10-09T16:57:47Z |3b|: but would still be nice to be able to evaluate it for comparison
2014-10-09T16:59:40Z |3b|: more specifically, seems to be a list with a bunch of arguments that are calls to a local function, with different arguments each time
2014-10-09T17:01:57Z |3b|: is RBP the stack on x8664?
2014-10-09T17:02:27Z stassats: the frame pointer
2014-10-09T17:03:16Z stassats: but yeah, it's how the stack is accessed
2014-10-09T17:04:37Z stassats: ok, concatenate committed, now i can go home
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2014-10-09T18:44:16Z reb: stassats: Thanks!!
2014-10-09T18:52:51Z pkhuong: http://randomascii.wordpress.com/2014/10/09/intel-underestimates-error-bounds-by-1-3-quintillion/ <- great. time to drop the x87 stuff?
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2014-10-09T18:59:54Z Krystof: meh, it's only an american quintillion
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2014-10-09T23:15:02Z aldo: hi :)
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