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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Christoph Lameter <cl@linux.com>
Cc: Yong Zhang <yong.zhang0@gmail.com>,
	linux-kernel@vger.kernel.org, Pekka Enberg <penberg@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	cl@gentwo.org
Subject: Re: 3.2-rc1: INFO: possible recursive locking detected
Date: Fri, 11 Nov 2011 07:48:45 -0800	[thread overview]
Message-ID: <20111111154845.GA2283@linux.vnet.ibm.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1111110841470.3006@router.home>

On Fri, Nov 11, 2011 at 08:43:13AM -0600, Christoph Lameter wrote:
> On Thu, 10 Nov 2011, Paul E. McKenney wrote:
> 
> > On Wed, Nov 09, 2011 at 05:05:57PM +0800, Yong Zhang wrote:
> > > Hi,
> > >
> > > Just get below waring when doing:
> > > for i in `seq 1 10`; do ./perf bench -f simple sched messaging -g 40; done
> > >
> > > And kernel config is attached.
> >
> > This appears to me to be the same false positive from the slab allocator
> > that has been seen before.  Christoph, any progress on this?
> 
> No this is another issue because it is not SLAB but SLUB. Must be a bug
> introduced by the recent merges of the per cpu partial list support.

Ah, OK.  Thank you for looking this over and for the suggested solutions!

							Thanx, Paul


  reply	other threads:[~2011-11-11 15:48 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-09  9:05 Yong Zhang
2011-11-09  9:09 ` Yong Zhang
2011-11-10 23:35 ` INFO: possible recursive locking detected: get_partial_node() on 3.2-rc1 Julie Sullivan
2011-11-11  3:04   ` Shaohua Li
2011-11-11  4:42     ` Yong Zhang
2011-11-11 14:57       ` Christoph Lameter
2011-11-11 15:02     ` Christoph Lameter
2011-11-11 19:09       ` Julie Sullivan
2011-11-11 19:22         ` Paul E. McKenney
2011-11-14  5:34       ` Shaohua Li
2011-11-15  7:22         ` Yong Zhang
2011-11-15 18:49           ` Pekka Enberg
2011-11-15 16:02         ` Christoph Lameter
2011-11-10 23:47 ` 3.2-rc1: INFO: possible recursive locking detected Paul E. McKenney
2011-11-11 14:43   ` Christoph Lameter
2011-11-11 15:48     ` Paul E. McKenney [this message]
2011-11-11 13:41 ` INFO: possible recursive locking detected: do_lookup() on 3.2-rc1 Shawn Guo

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