Re: coredump while isearching

[Richard Stallman]

     #0  0x42028cc1 in kill () from /lib/i686/libc.so.6
     #1  0x080d8884 in fatal_error_signal (sig=1871) at emacs.c:379
     #2  <signal handler called>
     #3  0x405210fb in XSync () from /usr/X11R6/lib/libX11.so.6
     #4  0x080b8569 in x_catch_errors_unwind (old_val=1485394884) at 
xterm.c:12515
     #5  0x08134988 in unbind_to (count=12, value=405458652) at eval.c:3092

Apparently XSync referenced bad data.  There is no easy way to figure out
what that bad data was, but I have a guess of a possibility.

Can you figure out what argument was passed to XSync
and determine whether it was a legitimate value?


From: address@hidden
To: address@hidden
Date: Tue, 18 Feb 2003 15:28:53 -0500
Subject: coredump while isearching
Sender: address@hidden

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the address@hidden mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

In a long-running (a few days, at least) multi-frame emacs, I opened a
text file via emacsclient, and proceeded to isearch through the
document.  Emacs coredumped, I *believe* while I was switching virtual
desktops (ctwm), but it could have been a delayed reaction to an isearch
attempt (I was switching to find out what has suddenly slowed the
computer).  

I include here the first page of gdb `where' output.  I can make the
coredump available, and/or perform particular debugging commands, but I
will be updating the emacs installation on this machine very soon (I
will save the binary, but the supporting elisp, etc. will be updated).

 #0  0x42028cc1 in kill () from /lib/i686/libc.so.6
 #1  0x080d8884 in fatal_error_signal (sig=1871) at emacs.c:379
 #2  <signal handler called>
 #3  0x405210fb in XSync () from /usr/X11R6/lib/libX11.so.6
 #4  0x080b8569 in x_catch_errors_unwind (old_val=1485394884) at xterm.c:12515
 #5  0x08134988 in unbind_to (count=12, value=405458652) at eval.c:3092
 #6  0x0815bdaa in Fbyte_code (bytestr=405827036, vector=1, 
maxdepth=-1073746352)
     at bytecode.c:730
 #7  0x081341e3 in funcall_lambda (fun=1216414520, nargs=0, 
arg_vector=0xbfffef74)
     at eval.c:2927
 #8  0x08133dcb in Ffuncall (nargs=1, args=0xbfffef70) at eval.c:2797
 #9  0x0815bd58 in Fbyte_code (bytestr=405551980, vector=0, 
maxdepth=-1073746064)
     at bytecode.c:709
 #10 0x081341e3 in funcall_lambda (fun=1216413928, nargs=0, 
arg_vector=0xbffff0fc)
     at eval.c:2927
 #11 0x08133dcb in Ffuncall (nargs=1, args=0xbffff0f8) at eval.c:2797
 #12 0x08133a16 in run_hook_with_args (nargs=1, args=0xbffff0f8, 
     cond=to_completion) at eval.c:2410
 #13 0x081338d9 in Frun_hooks (nargs=1, args=0xbffff1a4) at eval.c:2278
 #14 0x08133fba in Ffuncall (nargs=2, args=0xbffff1a0) at eval.c:2721
 #15 0x08133c00 in call1 (fn=405578860, arg1=405514604) at eval.c:2536
 #16 0x080dc9bf in safe_run_hooks_1 (hook=405458700) at keyboard.c:1952
 #17 0x081323da in internal_condition_case (bfun=0x80dc9a8 <safe_run_hooks_1>, 
     handlers=405458700, hfun=0x80dc9c4 <safe_run_hooks_error>) at eval.c:1351
 #18 0x080dca19 in safe_run_hooks (hook=405514604) at keyboard.c:1975
 #19 0x080db4f2 in command_loop_1 () at keyboard.c:1748
 #20 0x081323da in internal_condition_case (bfun=0x80db178 <command_loop_1>, 
     handlers=405555260, hfun=0x80dad74 <cmd_error>) at eval.c:1351
 #21 0x080db05e in command_loop_2 () at keyboard.c:1286
 #22 0x08131f7d in internal_catch (tag=0, func=0x80db040 <command_loop_2>, 
     arg=405458652) at eval.c:1112
 #23 0x080db014 in command_loop () at keyboard.c:1265
 #24 0x080dab50 in recursive_edit_1 () at keyboard.c:981
 #25 0x080dac60 in Frecursive_edit () at keyboard.c:1037
 #26 0x080d95bb in main (argc=3, argv=0xbffff8f4) at emacs.c:1659
 #27 0x420158d4 in __libc_start_main () from /lib/i686/libc.so.6



In GNU Emacs 21.3.50.9 (i686-pc-linux-gnu)
 of 2003-02-13 on tabula-rasa.jenwa.org
configured using `configure '--without-toolkit-scroll-bars' '--with-gtk' 
'--without-xim' '--without-leim''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Recent input: irrelevant

Recent messages: irrelevant


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