From: Paul Eggert <eggert@cs.ucla.edu>
To: Jorgen Schaefer <forcer@forcix.cx>
Cc: 17561@debbugs.gnu.org
Subject: bug#17561: Emacs can forget processes
Date: Sat, 24 May 2014 16:01:20 -0700 [thread overview]
Message-ID: <538124C0.8080107@cs.ucla.edu> (raw)
In-Reply-To: <20140523184419.70fe136d@forcix.jorgenschaefer.de>
Jorgen Schaefer wrote:
>> Can you run the shell command 'strace -p' on an Emacs with the
>> problem, and trace the system calls near the offending area?
>
> The bug report includes an strace output. Emacs does the pselect6 call
Sorry, I should have been more specific. It'd be nice to see the strace
output for when you run start-process in a temp buffer, not for later
when Emacs is in a tight loop.
> read(2) returning 0 indicates an EOF (which pselect6 indicates as
> waiting input), I suspect there could at least be a sanity check here
> to close the file descriptors instead of continuously polling.
Maybe, though I worry that might mask the bug and might cause other,
more serious failures down the road. It'd be nicer to fix the actual
bug, if we can figure out what it is.
For what it's worth I tried reproducing the bug with emacs-24 'emacs -Q'
on Fedora, using your recipe, but this didn't have a problem. I ran it
1000 times rapidly in sequence and it was OK. I ran it 10000 times and
ran out of file descriptors but that's to be expected.
next prev parent reply other threads:[~2014-05-24 23:01 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-23 15:52 bug#17561: 24.4.50; Emacs can forget processes Jorgen Schaefer
2014-05-23 16:28 ` bug#17561: " Paul Eggert
2014-05-23 16:44 ` Jorgen Schaefer
2014-05-24 23:01 ` Paul Eggert [this message]
2014-05-25 7:57 ` Jorgen Schaefer
2014-05-26 17:08 ` Paul Eggert
2014-05-26 18:49 ` Jorgen Schaefer
2014-05-26 23:58 ` Paul Eggert
2014-05-27 18:27 ` Jorgen Schaefer
2014-05-27 21:42 ` Paul Eggert
2014-05-27 22:16 ` Jorgen Schaefer
2014-05-28 0:47 ` Paul Eggert
2014-05-28 20:53 ` Jorgen Schaefer
2014-05-28 23:00 ` Paul Eggert
2014-05-28 23:35 ` Jorgen Schaefer
2014-05-29 1:22 ` Paul Eggert
2014-05-29 10:08 ` Jorgen Schaefer
2014-05-29 23:15 ` Paul Eggert
2014-05-29 4:17 ` Paul Eggert
2014-05-29 11:39 ` Jorgen Schaefer
2014-05-29 15:09 ` Paul Eggert
2014-05-29 15:22 ` Andreas Schwab
2014-05-29 15:26 ` Paul Eggert
2014-05-29 17:03 ` Jorgen Schaefer
2014-05-29 17:55 ` Andreas Schwab
2014-05-29 18:23 ` Jorgen Schaefer
2014-05-29 19:06 ` Jorgen Schaefer
2014-05-29 20:27 ` Andreas Schwab
2014-05-29 19:15 ` Andreas Schwab
2014-05-30 6:07 ` Paul Eggert
2014-05-30 20:41 ` Jorgen Schaefer
2014-05-30 21:29 ` Paul Eggert
2014-05-27 4:05 ` Paul Eggert
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