GNU bug report logs - #17561
24.4.50; Emacs can forget processes

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Package: emacs;

Reported by: Jorgen Schaefer <contact <at> jorgenschaefer.de>

Date: Fri, 23 May 2014 15:54:02 UTC

Severity: normal

Tags: moreinfo

Merged with 17337, 17628

Found in version 24.4.50

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Jorgen Schaefer <forcer <at> forcix.cx>
Cc: 17561 <at> debbugs.gnu.org
Subject: bug#17561: Emacs can forget processes
Date: Tue, 27 May 2014 17:47:41 -0700

Jorgen Schaefer wrote:
> No output.

Ouch.  It sounds like we may be barking up the wrong tree with the 
assumption that there is a kernel bug with vfork, then.  It could be 
that it's just an strace bug.

I'm still suspicious of the interaction between pthread_sigmask and 
vfork, though.  What happens if you do the following shell session, 
where "$" is the shell prompt and "(gdb)" is the GDB prompt?

$ grep -i pthread src/config.h
$ ldd src/bootstrap-emacs | grep -i pthread
$ gdb src/bootstrap-emacs
(gdb) disas rpl_pthread_sigmask
(gdb) disas pthread_sigmask
(gdb) disas rpl_vfork
(gdb) disas vfork
(gdb) disas rpl_fork
(gdb) disas fork
This bug report was last modified 10 years and 351 days ago.

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