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bug#58956: mark_object, mark_objects(?) crash
From: |
Eli Zaretskii |
Subject: |
bug#58956: mark_object, mark_objects(?) crash |
Date: |
Wed, 02 Nov 2022 14:24:51 +0200 |
> From: Sean Whitton <spwhitton@spwhitton.name>
> Date: Tue, 01 Nov 2022 18:33:38 -0700
>
> Thread 1 (Thread 0x7f5b914cb380 (LWP 35005)):
> #0 __pthread_kill_implementation (threadid=<optimized out>,
> signo=signo@entry=6, no_tid=no_tid@entry=0) at ./nptl/pthread_kill.c:44
> tid = <optimized out>
> ret = 0
> pd = <optimized out>
> old_mask = {__val = {0 <repeats 16 times>}}
> ret = <optimized out>
> #1 0x00007f5b922895df in __pthread_kill_internal (signo=6,
> threadid=<optimized out>) at ./nptl/pthread_kill.c:78
> #2 0x00007f5b9223da02 in __GI_raise (sig=sig@entry=6) at
> ../sysdeps/posix/raise.c:26
> ret = <optimized out>
> #3 0x000055fdfd114864 in terminate_due_to_signal (sig=sig@entry=6,
> backtrace_limit=backtrace_limit@entry=40) at
> ./debian/build-src/src/emacs.c:437
> #4 0x000055fdfd114d27 in emacs_abort () at
> ./debian/build-src/src/sysdep.c:2282
> #5 0x000055fdfd111e99 in check_message_stack () at
> ./debian/build-src/src/xdisp.c:12157
> #6 0x000055fdfd20492a in shut_down_emacs (sig=0, stuff=0x0) at
> ./debian/build-src/src/emacs.c:2789
> tpgrp = <optimized out>
> #7 0x000055fdfd114765 in Fkill_emacs (arg=arg@entry=0x6) at
> ./debian/build-src/src/emacs.c:2692
> exit_code = <optimized out>
> #8 0x000055fdfd114827 in terminate_due_to_signal (sig=sig@entry=1,
> backtrace_limit=backtrace_limit@entry=40) at
> ./debian/build-src/src/emacs.c:417
> #9 0x000055fdfd114d00 in handle_fatal_signal (sig=sig@entry=1) at
> ./debian/build-src/src/sysdep.c:1762
> #10 0x000055fdfd114d17 in deliver_process_signal (handler=0x55fdfd114cf5
> <handle_fatal_signal>, sig=1) at ./debian/build-src/src/sysdep.c:1720
> old_errno = 2
> on_main_thread = true
> #11 deliver_fatal_signal (sig=1) at ./debian/build-src/src/sysdep.c:1768
> #12 0x00007f5b9223daa0 in <signal handler called> () at
> /lib/x86_64-linux-gnu/libc.so.6
> #13 0x000055fdfd2641c3 in mark_object (arg=0x295d90329a68) at
> ./debian/build-src/src/alloc.c:6628
> obj = 0x295d90329a68
> po = <optimized out>
> cdr_count = 0
Signal 1 is SIGHUP, AFAIU. Why should Emacs receive SIGHUP in the
middle of GC, I have no idea. Maybe ask the user what was he doing at
that time. E.g., could that be a remote Emacs session?
Other than that, I don't see what can be done with this data: this is
an optimized build, and there's no real data in the backtrace to begin
considering why would SIGHUP happen. Sorry.
- bug#58956: mark_object, mark_objects(?) crash, Sean Whitton, 2022/11/01
- bug#58956: mark_object, mark_objects(?) crash,
Eli Zaretskii <=
- bug#58956: mark_object, mark_objects(?) crash, Vincent Lefevre, 2022/11/02
- bug#58956: mark_object, mark_objects(?) crash, Eli Zaretskii, 2022/11/03
- bug#58956: mark_object, mark_objects(?) crash, Vincent Lefevre, 2022/11/03
- bug#58956: mark_object, mark_objects(?) crash, Eli Zaretskii, 2022/11/03
- bug#58956: mark_object, mark_objects(?) crash, Andrea Corallo, 2022/11/03
- bug#58956: mark_object, mark_objects(?) crash, Eli Zaretskii, 2022/11/04
- bug#58956: mark_object, mark_objects(?) crash, Andrea Corallo, 2022/11/04
- bug#58956: mark_object, mark_objects(?) crash, Paul Eggert, 2022/11/05
- bug#58956: mark_object, mark_objects(?) crash, Eli Zaretskii, 2022/11/06
- bug#58956: mark_object, mark_objects(?) crash, Paul Eggert, 2022/11/06