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bug#13192: 24.3.50; gdb caught SIG_DFL after launching a process
From: |
Eli Zaretskii |
Subject: |
bug#13192: 24.3.50; gdb caught SIG_DFL after launching a process |
Date: |
Sat, 15 Dec 2012 17:50:15 +0200 |
> From: Ivan Kanis <ivan.kanis@googlemail.com>
> Cc: 13192@debbugs.gnu.org
> Date: Sat, 15 Dec 2012 16:31:11 +0100
>
> Eli Zaretskii <eliz@gnu.org> wrote:
>
> >> #0 terminate_due_to_signal (sig=6, backtrace_limit=10) at emacs.c:315
> >> No locals.
> >> #1 0x081756cb in emacs_abort () at sysdep.c:2113
> >> No locals.
> >> #2 0x08173b5c in get_child_status (child=12251, status=0xbfffdae4,
> >> options=3,
> >> interruptible=false) at sysdep.c:297
> >> pid = -1
> >
> > What is the value of errno in this frame #2?
>
> 10
Which is ECHILD, AFAIK.
So I think the problem is that, while we wait for a process to exit in
'waitpid', that function is interrupted by SIGCHLD, and the signal
handler re-enters 'waitpid', which now returns with ECHILD instead of
EINTR.
- bug#13192: 24.3.50; gdb caught SIG_DFL after launching a process, ivan . kanis, 2012/12/15
- bug#13192: 24.3.50; gdb caught SIG_DFL after launching a process, Eli Zaretskii, 2012/12/15
- bug#13192: 24.3.50; gdb caught SIG_DFL after launching a process, Ivan Kanis, 2012/12/15
- bug#13192: 24.3.50; gdb caught SIG_DFL after launching a process,
Eli Zaretskii <=
- bug#13192: 24.3.50; gdb caught SIG_DFL after launching a process, Ivan Kanis, 2012/12/17
- bug#13192: 24.3.50; gdb caught SIG_DFL after launching a process, Eli Zaretskii, 2012/12/17
- bug#13192: 24.3.50; gdb caught SIG_DFL after launching a process, Paul Eggert, 2012/12/17
- bug#13192: 24.3.50; gdb caught SIG_DFL after launching a process, Ivan Kanis, 2012/12/17
- bug#13192: 24.3.50; gdb caught SIG_DFL after launching a process, Ivan Kanis, 2012/12/21
- bug#13192: 24.3.50; gdb caught SIG_DFL after launching a process, Paul Eggert, 2012/12/21