linux-kernel - Re: -rc6: something (probably active usb bluetooth) blocks suspend

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Message-ID: <20091118171759.GB25150@elf.ucw.cz>
Date:	Wed, 18 Nov 2009 18:18:00 +0100
From:	Pavel Machek <pavel@....cz>
To:	Oliver Neukum <oliver@...kum.org>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	USB list <linux-usb@...r.kernel.org>,
	kernel list <linux-kernel@...r.kernel.org>,
	marcel@...tmann.org, linux-bluetooth@...r.kernel.org,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: -rc6: something (probably active usb bluetooth) blocks suspend

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 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?

I (shortly) tried to repeat it but could not.
									Pavel

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