From: Thomas Gleixner <tglx@linutronix.de>
To: Andrew Morton <akpm@osdl.org>
Cc: Benoit Boissinot <bboissin@gmail.com>, linux-kernel@vger.kernel.org
Subject: Re: 2.6.17-rc3-mm1
Date: Wed, 03 May 2006 16:15:32 +0200 [thread overview]
Message-ID: <1146665732.27820.75.camel@localhost.localdomain> (raw)
In-Reply-To: <20060503064816.ef7ec2b7.akpm@osdl.org>
On Wed, 2006-05-03 at 06:48 -0700, Andrew Morton wrote:
> > Since a few -mm releases I am seeing processes stuck in a
> > nanosleep({0, 0}, NULL) syscall. Sometimes, they unfreeze after
> > several hours.
>
> Thanks. Yes, please test mainline first - it will probably occur there.
>
> And it's a nanosleep(zero) all the time? The obvious answer would be that
> a clock tick came in at the right time and we end up trying to sleep for -1
> units. But if that was the case, things wouldn't unsleep after just
> several hours.
I don't see how that should happen. The expiry time is stored in
absolute time format when nanosleep is started and compared against
current time in the softirq. We might miss one tick, but not more.
Benoit, can you please mail me .config and a boot log ?
tglx
next prev parent reply other threads:[~2006-05-03 14:13 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-01 8:47 2.6.17-rc3-mm1 Andrew Morton
2006-05-01 12:54 ` 2.6.17-rc3-mm1 Josh Boyer
2006-05-01 16:59 ` 2.6.17-rc3-mm1 Andrew Morton
2006-05-01 17:33 ` 2.6.17-rc3-mm1 Josh Boyer
2006-05-01 18:57 ` 2.6.17-rc3-mm1 H. Peter Anvin
2006-05-01 21:29 ` 2.6.17-rc3-mm1 Sam Ravnborg
2006-05-01 21:35 ` 2.6.17-rc3-mm1 H. Peter Anvin
2006-05-01 17:10 ` pi-futex-patchset-v4.patch (was 2.6.17-rc3-mm1 Valdis.Kletnieks
2006-05-03 9:11 ` 2.6.17-rc3-mm1 Benoit Boissinot
2006-05-03 13:48 ` 2.6.17-rc3-mm1 Andrew Morton
2006-05-03 14:15 ` Thomas Gleixner [this message]
[not found] ` <20060503144318.GA5505@ens-lyon.fr>
2006-05-05 15:05 ` 2.6.17-rc3-mm1 Benoit Boissinot
2006-05-06 10:30 ` 2.6.17-rc3-mm1 Thomas Gleixner
2006-05-08 17:48 ` 2.6.17-rc3-mm1 john stultz
2006-05-12 11:41 ` 2.6.17-rc3-mm1 Benoit Boissinot
2006-05-12 17:22 ` 2.6.17-rc3-mm1 john stultz
2006-05-09 12:40 ` 2.6.17-rc3-mm1 Benoit Boissinot
2006-05-12 7:25 ` 2.6.17-rc3-mm1 J.A. Magallón
2006-05-12 7:40 ` 2.6.17-rc3-mm1 Andrew Morton
2006-05-12 7:47 ` 2.6.17-rc3-mm1 J.A. Magallón
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