From: Andreas Schwab <schwab@linux-m68k.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 13:01:00 +0100 [thread overview]
Message-ID: <87r1b13j0j.fsf@igel.home> (raw)
In-Reply-To: <83lf19zv5s.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 27 Nov 2021 13:37:35 +0200")
On Nov 27 2021, Eli Zaretskii wrote:
>> From: Po Lu <luangruo@yahoo.com>
>> Cc: 52141@debbugs.gnu.org
>> Date: Sat, 27 Nov 2021 19:32:29 +0800
>>
>> >> #9 set_next_vectorPython Exception <class 'gdb.MemoryError'>: Cannot access memory at address 0xfe94cc8
>> >> (p=#10 setup_on_free_list (nbytes=<optimized out>, v=0x2ce6c10) at alloc.c:2977
>> >> #11 sweep_vectors () at alloc.c:3242
>> >> #12 0x0000000000561328 in gc_sweep () at alloc.c:7255
>> >> #13 garbage_collect () at alloc.c:6190
>> >> #14 0x0000000000561811 in maybe_garbage_collect () at alloc.c:6053
>> >> #15 0x00000000005804ad in maybe_gc () at /home/oldosfan/emacs-dev/emacs-gc/src/lisp.h:5161
>> >> #16 eval_sub (form=0x1e753d3) at eval.c:2449
>> >> #17 0x0000000000582149 in Feval (form=0x1e753d3, lexical=<optimized out>) at eval.c:2372
>> > ^^^^
>> > What is this form we are evaluating here? Can you show its contents?
>> > (Not that I think it is related to the crash.)
>>
>> 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.
There could have been several corruptions that only surfaced just now.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
next prev parent reply other threads:[~2021-11-27 12:01 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 [this message]
2021-11-27 15:59 ` Daniel Martín via Bug reports for GNU Emacs, the Swiss army knife of text editors
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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