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From: Tejun Heo <tj@kernel.org>
To: Sasha Levin <sasha.levin@oracle.com>
Cc: Jens Axboe <axboe@fb.com>, LKML <linux-kernel@vger.kernel.org>,
	Dave Jones <davej@redhat.com>
Subject: Re: blk: NULL ptr deref in blk_throtl_drain
Date: Fri, 4 Jul 2014 13:15:44 -0400	[thread overview]
Message-ID: <20140704171544.GB11787@mtj.dyndns.org> (raw)
In-Reply-To: <53B6DA3E.40704@oracle.com>

On Fri, Jul 04, 2014 at 12:45:50PM -0400, Sasha Levin wrote:
> Hi all,
> 
> While fuzzing with trinity inside a KVM tools guest running the latest -next
> kernel I've stumbled on the following spew:
> 
> [ 3660.610281] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
> [ 3660.612608] IP: blk_throtl_drain (block/blk-throttle.c:1639)

This is a problem which can also happen before the patch with lower
frequency.  There was a fix proposed about a week ago which I
suggested a different approach for.  I'll dig up that thread and ping.

Thanks.

-- 
tejun

      reply	other threads:[~2014-07-04 17:15 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-04 16:45 Sasha Levin
2014-07-04 17:15 ` Tejun Heo [this message]

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