GNU bug report logs - #52141
29.0.50; Crash during redisplay

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Package: emacs;

Reported by: Po Lu <luangruo <at> yahoo.com>

Date: Sat, 27 Nov 2021 11:04:01 UTC

Severity: normal

Found in version 29.0.50

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Message #20 received at 52141 <at> debbugs.gnu.org (full text, mbox):

From: Daniel Martín <mardani29 <at> yahoo.es>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Po Lu <luangruo <at> yahoo.com>, 52141 <at> debbugs.gnu.org
Subject: Re: bug#52141: 29.0.50; Crash during redisplay
Date: Sat, 27 Nov 2021 16:59:16 +0100

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

>> 
>> Its type is Lisp_Cons.  However, its address is invalid.  Running
>> `xcons' in gdb complains:
>> 
>> (gdb) xcons
>> $9 = (struct Lisp_Cons *) 0x1e753d0
>> Cannot access memory at address 0x1e753d0
>
> Hmm... and the address is very different from the one which caused the
> segfault.  Strange.
>
> Any ideas, anyone?

Is it possible to run that Emacs instance with some kind of memory
sanitizer enabled (ASAN, Valgrind...)?  That may help catch the
potential memory corruption at the point it happens, not at the point
the garbage collector wants to free it.
This bug report was last modified 3 years and 205 days ago.

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