From: Dan Carpenter <dan.carpenter@oracle.com>
To: Darren Hart <dvhart@linux.intel.com>
Cc: Dave Jones <davej@redhat.com>, linux-kernel@vger.kernel.org
Subject: Re: potential NULL dereference in futex_wait_requeue_pi()
Date: Wed, 18 Jul 2012 18:55:33 +0300 [thread overview]
Message-ID: <20120718155533.GF16348@mwanda> (raw)
In-Reply-To: <5006D932.1060407@linux.intel.com>
On Wed, Jul 18, 2012 at 08:41:38AM -0700, Darren Hart wrote:
>
>
> 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?
>
This was a static checker warning. It was Dave who saw the oops
from syscall fuzzing with trinity.
regards,
dan carpenter
next prev parent reply other threads:[~2012-07-18 15:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-18 14:25 Dan Carpenter
2012-07-18 15:31 ` Dave Jones
2012-07-18 15:41 ` Darren Hart
2012-07-18 15:55 ` Dan Carpenter [this message]
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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