linux-kernel - Re: [alsa-devel] v3.14-rc1 locking bug in system suspend

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Message-ID: <20140208045824.GB10195@S2101-09.ap.freescale.net>
Date:	Sat, 8 Feb 2014 12:58:29 +0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	<linux-kernel@...r.kernel.org>
CC:	<alsa-devel@...a-project.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [alsa-devel] v3.14-rc1 locking bug in system suspend

On Thu, Feb 06, 2014 at 10:55:13PM +0800, Shawn Guo wrote:
> On Wed, Feb 05, 2014 at 10:54:10PM +0800, Shawn Guo wrote:
> > I start seeing the following locking bug on IMX6 with suspend operation
> > after moving to v3.14-rc1.  Before I start looking into the issue, I
> > would like to confirm if it's an IMX specific problem or one seen on
> > other platforms.  Please ask if you need more info.
> 
> Sorry.  This is not a new bug of v3.14-rc1.  It's been there with
> v3.13-rc for a while.  It looks like there is something wrong in the
> use of power_lock in struct snd_card.  Will dig into it.

Okay.  This is an IMX specific problem caused by audio driver.  I will
send a fix to alsa-devel list shortly.

Shawn

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