From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Guillaume Chazarain <guichaz@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
Thomas Gleixner <tglx@linutronix.de>,
"Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: Hang in work_resched
Date: Thu, 31 Jan 2008 13:12:25 +0100 [thread overview]
Message-ID: <1201781545.28547.298.camel@lappy> (raw)
In-Reply-To: <3d8471ca0801310329o5620ac39qe3a0c39f2c0baa49@mail.gmail.com>
On Thu, 2008-01-31 at 12:29 +0100, Guillaume Chazarain wrote:
> On Jan 31, 2008 9:55 AM, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> > Does this patch from thomas fix it as well?
>
> Unfortunately, not.
>
> For information, reverting just the first part of the offending commit
> (sl->timer.cb_mode) fixed the problem, while reverting only the second
> part (if (!hrtimer_active(&t->timer))) had no effect.
>
> Also, I found a trivially reproductible testcase : sleep 0.
>
> It hangs in nanosleep({0, 0}).
works for me :-( (x86_64 rawhide userspace)
Could you send your .config?
next prev parent reply other threads:[~2008-01-31 12:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-29 22:30 Hang in work_resched Guillaume Chazarain
2008-01-30 22:54 ` Guillaume Chazarain
2008-01-31 8:55 ` Peter Zijlstra
2008-01-31 11:29 ` Guillaume Chazarain
2008-01-31 11:32 ` Peter Zijlstra
2008-01-31 12:12 ` Peter Zijlstra [this message]
2008-01-31 12:34 ` Guillaume Chazarain
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1201781545.28547.298.camel@lappy \
--to=a.p.zijlstra@chello.nl \
--cc=guichaz@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=rjw@sisk.pl \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox