From: Darren Hart <dvhart@linux.intel.com>
To: Dave Jones <davej@redhat.com>,
Dan Carpenter <dan.carpenter@oracle.com>,
linux-kernel@vger.kernel.org
Subject: Re: potential NULL dereference in futex_wait_requeue_pi()
Date: Wed, 18 Jul 2012 08:41:38 -0700 [thread overview]
Message-ID: <5006D932.1060407@linux.intel.com> (raw)
In-Reply-To: <20120718153123.GA24408@redhat.com>
On 07/18/2012 08:31 AM, Dave Jones wrote:
> On Wed, Jul 18, 2012 at 05:25:14PM +0300, Dan Carpenter wrote:
> > Hi Darren,
> >
> > The patch 52400ba94675: "futex: add requeue_pi functionality" from
> > Apr 3, 2009, leads to the following warning:
> > kernel/futex.c:2373 futex_wait_requeue_pi()
> > error: potential NULL dereference 'pi_mutex'.
>
> This sounds like the oops I saw that I reported at https://lkml.org/lkml/2012/7/13/328
I'm looking into the report Dave sent today (delayed from piles of
urgent issues after returning from vacation, my apologies).
Dan, under which workload are you seeing this?
--
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel
next prev parent reply other threads:[~2012-07-18 15:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-18 14:25 potential NULL dereference in futex_wait_requeue_pi() Dan Carpenter
2012-07-18 15:31 ` Dave Jones
2012-07-18 15:41 ` Darren Hart [this message]
2012-07-18 15:55 ` Dan Carpenter
2012-07-18 16:03 ` Darren Hart
2012-07-18 18:01 ` Dave Jones
2012-07-19 4:21 ` Darren Hart
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