GNU bug report logs - #16350
24.3.50; emacs_backtrace.txt

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Drew Adams <drew.adams <at> oracle.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3.50; emacs_backtrace.txt
Date: Sat, 4 Jan 2014 23:23:03 -0800 (PST)

This time the crash occurred when I hit a key (M-k) in the minibuffer,
which is a key I use commonly (its command empties the minibuffer after
the prompt).

Exception 0xc0000005 at this address:
011d7fd1

Backtrace:
011fb48b
011fb4fc
010efd02
011142d8
011142b3
0111430c
010011e6
75c9fff7
77ca74fb
77c69f41




In GNU Emacs 24.3.50.1 (i686-pc-mingw32)
 of 2014-01-01 on ODIEONE
Bzr revision: 115827 eggert <at> cs.ucla.edu-20140101192741-bi5hb4xb4kdi2zpw
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
 `configure --prefix=/c/Devel/emacs/binary --enable-checking=yes,glyphs
 'CFLAGS=-O0 -g3' LDFLAGS=-Lc:/Devel/emacs/lib
 CPPFLAGS=-Ic:/Devel/emacs/include'

Message #8 received at 16350 <at> debbugs.gnu.org (full text, mbox):

From: Juanma Barranquero <lekktu <at> gmail.com>
To: Drew Adams <drew.adams <at> oracle.com>
Cc: 16350 <at> debbugs.gnu.org
Subject: Re: bug#16350: 24.3.50; emacs_backtrace.txt
Date: Sun, 5 Jan 2014 18:29:10 +0100

??
??:0
next_interval at intervals.c:720
??
??:0
??
??:0
w32_backtrace at w32fns.c:8393
emacs_abort at w32fns.c:8425
terminate_due_to_signal at emacs.c:378
handle_fatal_signal at sysdep.c:1628
deliver_thread_signal at sysdep.c:1602
deliver_fatal_thread_signal at sysdep.c:1640
?? at crt1.c:0
??
??:0
??
??:0
??
??:0

Message #11 received at 16350 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Juanma Barranquero <lekktu <at> gmail.com>
Cc: 16350 <at> debbugs.gnu.org, drew.adams <at> oracle.com
Subject: Re: bug#16350: 24.3.50; emacs_backtrace.txt
Date: Sun, 05 Jan 2014 20:00:14 +0200

> From: Juanma Barranquero <lekktu <at> gmail.com>
> Date: Sun, 5 Jan 2014 18:29:10 +0100
> Cc: 16350 <at> debbugs.gnu.org
> 
> next_interval at intervals.c:720

This is here:


  if (! NULL_RIGHT_CHILD (i))
    {
      i = i->right;
      while (! NULL_LEFT_CHILD (i))  <<<<<<<<<<<<<<<<<<
	i = i->left;

Which means we enter this fragment with 'i' that is non-NULL, but an
invalid pointer.

I don't see how to catch this except on a debugger.

Message #14 received at 16350 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Juanma Barranquero <lekktu <at> gmail.com>, 16350 <at> debbugs.gnu.org,
 drew.adams <at> oracle.com
Subject: Re: bug#16350: 24.3.50; emacs_backtrace.txt
Date: Sun, 09 Feb 2014 19:51:01 -0800

Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: Juanma Barranquero <lekktu <at> gmail.com>
>> Date: Sun, 5 Jan 2014 18:29:10 +0100
>> Cc: 16350 <at> debbugs.gnu.org
>> 
>> next_interval at intervals.c:720
>
> This is here:
>
>   if (! NULL_RIGHT_CHILD (i))
>     {
>       i = i->right;
>       while (! NULL_LEFT_CHILD (i))  <<<<<<<<<<<<<<<<<<
> 	i = i->left;
>
> Which means we enter this fragment with 'i' that is non-NULL, but an
> invalid pointer.
>
> I don't see how to catch this except on a debugger.

Ok; closing.

-- 
(domestic pets only, the antidote for overdose, milk.)
  bloggy blog http://lars.ingebrigtsen.no/

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