linux-kernel - Re: WARNING: at drivers/scsi/scsi

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Message-ID: <CAO+b5-paS698V61BA8e4ZYstdqR4AKda2EKx4DHqv4gtR2ocPA@mail.gmail.com>
Date:	Mon, 7 Nov 2011 08:33:46 +0100
From:	Bart Van Assche <bvanassche@....org>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	James Bottomley <James.Bottomley@...senpartnership.com>,
	linux-scsi@...r.kernel.org, Anton Blanchard <anton@...ba.org>
Subject: Re: WARNING: at drivers/scsi/scsi_lib.c:1704

On Mon, Nov 7, 2011 at 7:24 AM, Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> I get lots more of these.  The obvious commit to point the finger at
> is 3308511c93e6 ("[SCSI] Make scsi_free_queue() kill pending SCSI
> commands") but the root cause may be something different.

It's probably the combination of commit 3308511c93e6 and patch
http://marc.info/?l=linux-scsi&m=132027101521282 that's triggering
that warning: the first commit changed scsi_free_queue() such that it
expects that its callers reset the queuedata pointer but the second
patch introduced a new scsi_free_queue() call that doesn't reset the
queuedata pointer first.

Bart.
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