* Re: core dump. [not found] ` <87k73lug4x.fsf@zip.com.au> @ 2004-01-22 12:31 ` Han-Wen Nienhuys 2004-01-22 16:20 ` Dirk Herrmann ` (2 more replies) 0 siblings, 3 replies; 6+ messages in thread From: Han-Wen Nienhuys @ 2004-01-22 12:31 UTC (permalink / raw) Cc: bug-guile, guile-devel user42@zip.com.au writes: > > [Switching to Thread 1074493760 (LWP 27557)] > > 0x4002f524 in unmemocar (form=0x4050d7b8, env=0x167f) at eval.c:2246 > > (gdb) bt > > #0 0x4002f524 in unmemocar (form=0x4050d7b8, env=0x167f) at eval.c:2246 > > #1 0x4002f654 in scm_unmemocopy (x=0x404da7e8, env=0x4050de58) at eval.c:2469 > > I've seen something like this when an error (an ordinary scheme level > error) occurs in code generated by a procedure->macro. Dunno if > that's what's happening here. Running without --debug normally avoids > the segv (though obviously one can't tell quite where it went wrong). Yeah, I found out so far. Now I have to figure out what in my 10000 lines of Scheme code is causing ERROR: In procedure car: ERROR: Wrong type argument in position 1: () Does anyone actually know how the evaluator works? -- Han-Wen Nienhuys | hanwen@xs4all.nl | http://www.xs4all.nl/~hanwen _______________________________________________ Bug-guile mailing list Bug-guile@gnu.org http://mail.gnu.org/mailman/listinfo/bug-guile ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: core dump. 2004-01-22 12:31 ` core dump Han-Wen Nienhuys @ 2004-01-22 16:20 ` Dirk Herrmann 2004-01-22 22:45 ` Kevin Ryde 2004-01-23 17:40 ` Neil Jerram 2 siblings, 0 replies; 6+ messages in thread From: Dirk Herrmann @ 2004-01-22 16:20 UTC (permalink / raw) Cc: bug-guile, Kevin Ryde, guile-devel Han-Wen Nienhuys wrote: >user42@zip.com.au writes: > > >>>[Switching to Thread 1074493760 (LWP 27557)] >>>0x4002f524 in unmemocar (form=0x4050d7b8, env=0x167f) at eval.c:2246 >>>(gdb) bt >>>#0 0x4002f524 in unmemocar (form=0x4050d7b8, env=0x167f) at eval.c:2246 >>>#1 0x4002f654 in scm_unmemocopy (x=0x404da7e8, env=0x4050de58) at eval.c:2469 >>> >>> >>I've seen something like this when an error (an ordinary scheme level >>error) occurs in code generated by a procedure->macro. Dunno if >>that's what's happening here. Running without --debug normally avoids >>the segv (though obviously one can't tell quite where it went wrong). >> >> > >Yeah, I found out so far. Now I have to figure out what in my 10000 >lines of Scheme code is causing > > ERROR: In procedure car: > ERROR: Wrong type argument in position 1: () > >Does anyone actually know how the evaluator works? > > The error you describe could certainly be caused by the statement (car '()), but this is not what you are referring to? Best regards Dirk _______________________________________________ Bug-guile mailing list Bug-guile@gnu.org http://mail.gnu.org/mailman/listinfo/bug-guile ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: core dump. 2004-01-22 12:31 ` core dump Han-Wen Nienhuys 2004-01-22 16:20 ` Dirk Herrmann @ 2004-01-22 22:45 ` Kevin Ryde 2004-01-23 17:40 ` Neil Jerram 2 siblings, 0 replies; 6+ messages in thread From: Kevin Ryde @ 2004-01-22 22:45 UTC (permalink / raw) Cc: hanwen Han-Wen Nienhuys <hanwen@xs4all.nl> writes: > > Does anyone actually know how the evaluator works? For what it's worth, a small example I struck tickling the (or a) problem in this area is (define my-macro (procedure->memoizing-macro (lambda (expr env) (list 'let expr)))) (my-macro 1 2 3) The let generated is obviously wrong. I suspected the memoizing or something creates a circular list, or something, which has trouble printing or unmemoizing, or something. I think it should be pretty important to get even the worst and most obvious flaws printing successfully under --debug, since of course one is using that option because it's apparently not obvious what's wrong :-). _______________________________________________ Guile-devel mailing list Guile-devel@gnu.org http://mail.gnu.org/mailman/listinfo/guile-devel ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: core dump. 2004-01-22 12:31 ` core dump Han-Wen Nienhuys 2004-01-22 16:20 ` Dirk Herrmann 2004-01-22 22:45 ` Kevin Ryde @ 2004-01-23 17:40 ` Neil Jerram [not found] ` <1075297977.5072.37.camel@localhost> 2 siblings, 1 reply; 6+ messages in thread From: Neil Jerram @ 2004-01-23 17:40 UTC (permalink / raw) Cc: bug-guile, Kevin Ryde, guile-devel >>>>> "Han-Wen" == Han-Wen Nienhuys <hanwen@xs4all.nl> writes: Han-Wen> Yeah, I found out so far. Now I have to figure out what in my 10000 Han-Wen> lines of Scheme code is causing Han-Wen> ERROR: In procedure car: Han-Wen> ERROR: Wrong type argument in position 1: () Surely a backtrace would help you pinpoint the problem? Is there a reason why you can't get a backtrace for this error? Neil _______________________________________________ Bug-guile mailing list Bug-guile@gnu.org http://mail.gnu.org/mailman/listinfo/bug-guile ^ permalink raw reply [flat|nested] 6+ messages in thread
[parent not found: <1075297977.5072.37.camel@localhost>]
* Re: uniform-vector? gives true for list [not found] ` <1075297977.5072.37.camel@localhost> @ 2004-02-06 20:19 ` Roland Orre 2004-02-14 0:07 ` Kevin Ryde 0 siblings, 1 reply; 6+ messages in thread From: Roland Orre @ 2004-02-06 20:19 UTC (permalink / raw) Cc: guile-devel Maybe I should mention that this is both for 1.6.* and for 1.7 and of course for (array? ..) as well. It would of course be consistent if (if (array? '(a b c)) (array-ref '(a b c) 0)) would return 'a without errors, but this is not really what we want I guess... Best regards Roland Orre On Wed, 2004-01-28 at 14:52, Roland Orre wrote: > guile-user> (uniform-vector? '(a b c)) > #t > > This in both 1.6.4 and 1.7 > > Best regards > Roland Orre > _______________________________________________ Bug-guile mailing list Bug-guile@gnu.org http://mail.gnu.org/mailman/listinfo/bug-guile ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: uniform-vector? gives true for list 2004-02-06 20:19 ` uniform-vector? gives true for list Roland Orre @ 2004-02-14 0:07 ` Kevin Ryde 0 siblings, 0 replies; 6+ messages in thread From: Kevin Ryde @ 2004-02-14 0:07 UTC (permalink / raw) Cc: guile-devel Roland Orre <roland.orre@neurologic.se> writes: > > Maybe I should mention that this is both for 1.6.* and for 1.7 > and of course for (array? ..) as well. Looks like any non-immediate object except smobs gives #t, eg. functions too. _______________________________________________ Guile-devel mailing list Guile-devel@gnu.org http://mail.gnu.org/mailman/listinfo/guile-devel ^ permalink raw reply [flat|nested] 6+ messages in thread
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[not found] ` <87k73lug4x.fsf@zip.com.au>
2004-01-22 12:31 ` core dump Han-Wen Nienhuys
2004-01-22 16:20 ` Dirk Herrmann
2004-01-22 22:45 ` Kevin Ryde
2004-01-23 17:40 ` Neil Jerram
[not found] ` <1075297977.5072.37.camel@localhost>
2004-02-06 20:19 ` uniform-vector? gives true for list Roland Orre
2004-02-14 0:07 ` Kevin Ryde
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