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

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Date:	Mon, 16 Nov 2009 14:43:20 +0100
From:	Oliver Neukum <oliver@...kum.org>
To:	Pavel Machek <pavel@....cz>,
	Alan Stern <stern@...land.harvard.edu>,
	USB list <linux-usb@...r.kernel.org>
Cc:	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

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?

	Regards
		Oliver
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