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From: "Daniel Martín via Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: Po Lu <luangruo@yahoo.com>, 52141@debbugs.gnu.org
Subject: bug#52141: 29.0.50; Crash during redisplay
Date: Sat, 27 Nov 2021 16:59:16 +0100	[thread overview]
Message-ID: <m1y259si7f.fsf@yahoo.es> (raw)
In-Reply-To: <83lf19zv5s.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 27 Nov 2021 13:37:35 +0200")

Eli Zaretskii <eliz@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.





  parent reply	other threads:[~2021-11-27 15:59 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <87o865c13p.fsf.ref@yahoo.com>
2021-11-27 11:03 ` bug#52141: 29.0.50; Crash during redisplay Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-27 11:20   ` Eli Zaretskii
2021-11-27 11:32     ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-27 11:37       ` Eli Zaretskii
2021-11-27 12:01         ` Andreas Schwab
2021-11-27 15:59         ` Daniel Martín via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2021-11-27 16:56           ` Eli Zaretskii
2021-11-28  0:43           ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors

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