From: Pavel Machek <pavel@ucw.cz>
To: Ingo Molnar <mingo@elte.hu>
Cc: Fabio Comolli <fabio.comolli@gmail.com>,
kernel list <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>,
mingo@redhat.com, "Rafael J. Wysocki" <rjw@sisk.pl>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: 2.6.17-mm5: lockdep prevents suspend to disk
Date: Tue, 4 Jul 2006 23:29:10 +0200 [thread overview]
Message-ID: <20060704212910.GA11872@elf.ucw.cz> (raw)
In-Reply-To: <20060704210833.GA17961@elte.hu>
Hi!
> > > Jul 4 21:48:08 tycho kernel: rt-test-4
> > > Jul 4 21:48:08 tycho kernel: rt-test-5
> > > Jul 4 21:48:08 tycho kernel: rt-test-6
> > > Jul 4 21:48:08 tycho kernel: rt-test-7
> >
> > Are rt-test-X tasks kernel threads or userspace programs? (Kernel
> > threads need explicit try_to_freeze in them to allow suspend).
> >
> > Are they normally killable?
>
> hm, that's not lockdep but due to CONFIG_RT_MUTEX_TESTER.
I'm pretty sure RT_MUTEX_TESTER is the problem, then. It should either
end its threads when testing is no longer needed, or maybe add
try_to_freeze() somewhere inside so that those threads can be frozen.
(BTW.. some mail from me to you may be severely delayed because of
graylist. I send some mail from zaurus over bt over gprs, and
300second is quite a long time for that...)
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2006-07-04 21:29 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-04 19:58 2.6.17-mm5: lockdep prevents suspend to disk Fabio Comolli
2006-07-04 18:32 ` Pavel Machek
2006-07-04 21:08 ` Ingo Molnar
2006-07-04 21:29 ` Pavel Machek [this message]
2006-07-04 22:05 ` Thomas Gleixner
2006-07-04 20:21 ` Ingo Molnar
2006-07-04 18:30 ` Pavel Machek
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