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From: Ulrich Drepper <drepper@redhat.com>
To: Manfred Spraul <manfred@colorfullife.com>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>,
	mtk-lkml@gmx.net, rlove@rlove.org, roland@redhat.com,
	eggert@cs.ucla.edu, paire@ri.silicomp.fr, torvalds@osdl.org,
	tytso@mit.edu, linux-kernel@vger.kernel.org,
	michael.kerrisk@gmx.net
Subject: Re: Strange Linux behaviour with blocking syscalls and stop signals+SIGCONT
Date: Thu, 06 Jul 2006 11:55:50 -0700	[thread overview]
Message-ID: <44AD5CB6.7000607@redhat.com> (raw)
In-Reply-To: <44AD599D.70803@colorfullife.com>

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Manfred Spraul wrote:
> 1) I would go further and try ERESTARTSYS: ERESTARTSYS means that the
> kernel signal handler honors SA_RESTART
> 2) At least for the futex functions, it won't be as easy as replacing
> EINTR wiht ERESTARTSYS: the futex functions receive a timeout a the
> parameter, with the duration of the wait call as a parameter. You must
> use ERESTART_RESTARTBLOCK.

Whoa, not so fast.  At least the futex syscall but be interruptible by
signals.  It is crucial to return EINTR.

-- 
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖


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  reply	other threads:[~2006-07-06 18:55 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-03 14:46 Strange Linux behaviour with blocking syscalls and stop signals+SIGCONT Michael Kerrisk
2006-07-04 19:02 ` Manfred Spraul
2006-07-06  9:23   ` Michael Kerrisk
2006-07-06 18:42     ` Manfred Spraul
2006-07-06 18:55       ` Ulrich Drepper [this message]
2006-07-06 19:02         ` Manfred Spraul
2006-07-06 19:10           ` Ulrich Drepper
2006-07-06 19:18           ` Linus Torvalds
2006-07-06 19:28             ` Manfred Spraul
2006-07-06 19:29               ` Manfred Spraul
2006-07-07  4:57             ` Michael Kerrisk
2006-07-07  5:10               ` Linus Torvalds
2006-07-07  5:12                 ` Linus Torvalds
2009-11-07 19:43             ` angelo.borsotti
2006-07-07  4:32         ` Michael Kerrisk
2006-07-07  4:57           ` Ulrich Drepper
2006-07-07  5:07             ` Michael Kerrisk
2006-07-07  6:20               ` Ulrich Drepper
2006-07-07  7:03                 ` Michael Kerrisk
2006-07-07  7:20                   ` Arjan van de Ven
2006-07-07  8:02                     ` Michael Kerrisk
2006-07-07  9:26                       ` Jakub Jelinek
2006-07-07 13:36                         ` Ulrich Drepper
2006-07-07  4:28       ` Michael Kerrisk

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