From: Pavel Machek <pavel@ucw.cz>
To: Oliver Neukum <oliver@neukum.org>
Cc: Alan Stern <stern@rowland.harvard.edu>,
USB list <linux-usb@vger.kernel.org>,
kernel list <linux-kernel@vger.kernel.org>,
marcel@holtmann.org, linux-bluetooth@vger.kernel.org,
"Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: -rc6: something (probably active usb bluetooth) blocks suspend
Date: Mon, 16 Nov 2009 15:22:36 +0100 [thread overview]
Message-ID: <20091116142236.GA1796@ucw.cz> (raw)
In-Reply-To: <200911161443.20704.oliver@neukum.org>
On Mon 2009-11-16 14:43:20, Oliver Neukum wrote:
> Am Montag, 16. November 2009 12:22:54 schrieb Pavel Machek:
> > Linux amd 2.6.32-rc6-00498-g05b553a-dirty #89 SMP Fri Nov 13 10:43:31
> > CET 2009 i686 GNU/Linux
> >
> > ...and yes, it is a regression. Hw is thinkpad x60.
> >
> > Tried to suspend, machine came right back, used radio kill switch, and
> > it suspended ok. Relevant messages seem to be:
>
> I forgot to ask. Is this repeatable? The code is build on the
It happened once...
> assumption
> that workqueues are frozen as the system calls suspend for system
> sleep. If that assumption is wrong, a race can lead to this failure.
> Is it wrong?
There are two kinds of workqueues -- AFAICT -- kind one is frozen,
kind two is not.
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:[~2009-11-16 14:24 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-16 11:22 -rc6: something (probably active usb bluetooth) blocks suspend Pavel Machek
2009-11-16 11:48 ` Oliver Neukum
2009-11-14 11:10 ` Pavel Machek
2009-11-16 13:47 ` Oliver Neukum
2009-11-16 16:05 ` Alan Stern
2009-11-18 17:22 ` Pavel Machek
2009-11-16 13:43 ` Oliver Neukum
2009-11-16 14:22 ` Pavel Machek [this message]
2009-11-18 17:18 ` Pavel Machek
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