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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
	"Alex,Shi" <alex.shi@intel.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	Christoph Lameter <cl@linux-foundation.org>,
	Pekka Enberg <penberg@kernel.org>, Matt Mackall <mpm@selenic.com>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	Tejun Heo <tj@kernel.org>,
	Christian Kujau <lists@nerdbynature.de>
Subject: Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413
Date: Tue, 22 Nov 2011 07:27:55 +1100	[thread overview]
Message-ID: <1321907275.13860.12.camel@pasglop> (raw)
In-Reply-To: <20111121195113.GA1678@x4.trippels.de>

On Mon, 2011-11-21 at 20:51 +0100, Markus Trippelsdorf wrote:
> On 2011.11.21 at 19:52 +0100, Markus Trippelsdorf wrote:
> > On 2011.11.21 at 19:39 +0100, Eric Dumazet wrote:
> > > Le lundi 21 novembre 2011 A  18:35 +0100, Markus Trippelsdorf a A(C)crit :
> > > 
> > > > New one:
> > > 
> > > ...
> > > 
> > > I was just wondering if you were using CONFIG_CGROUPS=y, and if yes, if
> > > you could try to disable it.
> > 
> > # CONFIG_CGROUPS is not set
> > 
> > (I never enable CGROUPS on my machines)
> 
> Just for the record, I've attached full dmesg and my .config.
> (Will continue testing tomorrow)

Note that I hit a similar looking crash (sorry, I couldn't capture a
backtrace back then) on a PowerMac G5 (ppc64) while doing a large rsync
transfer yesterday with -rc2-something (cfcfc9ec) and 
Christian Kujau (CC) seems to be able to reproduce something similar on
some other ppc platform (Christian, what is your setup ?)

We haven't hit the poison checks, more like bad pointer derefs, almost
always in SLUB coming from skb alloc or free.

In my case, it's not easy to reproduce, so a bisection would be
error-prone.

Cheers,
Ben.


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  reply	other threads:[~2011-11-21 20:32 UTC|newest]

Thread overview: 109+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-18  7:25 WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413 Markus Trippelsdorf
2011-11-18  7:55 ` Markus Trippelsdorf
2011-11-18  8:43   ` Alex,Shi
2011-11-18  8:54     ` Markus Trippelsdorf
2011-11-18  8:57       ` Markus Trippelsdorf
2011-11-18 12:02       ` Markus Trippelsdorf
2011-11-21  0:44         ` Alex,Shi
2011-11-21  7:29           ` Markus Trippelsdorf
2011-11-21  8:05           ` Markus Trippelsdorf
2011-11-21  8:24             ` Markus Trippelsdorf
2011-11-21  8:56               ` Eric Dumazet
2011-11-21  9:16               ` Eric Dumazet
2011-11-21 13:15                 ` Markus Trippelsdorf
2011-11-21 14:16                   ` Eric Dumazet
2011-11-21 14:21                     ` Markus Trippelsdorf
2011-11-21 15:36                     ` Markus Trippelsdorf
2011-11-21 15:48                       ` Eric Dumazet
2011-11-21 16:10                         ` Markus Trippelsdorf
2011-11-21 16:34                           ` Markus Trippelsdorf
2011-11-22  8:36                             ` Markus Trippelsdorf
2011-12-19  3:21                               ` Eric W. Biederman
2011-12-19  9:19                                 ` Markus Trippelsdorf
2011-12-19  9:06                                   ` Eric W. Biederman
2011-11-21 16:52                           ` Eric Dumazet
2011-11-21 17:15                             ` Eric Dumazet
2011-11-21 17:35                               ` Markus Trippelsdorf
2011-11-21 18:39                                 ` Eric Dumazet
2011-11-21 18:52                                   ` Markus Trippelsdorf
2011-11-21 19:51                                     ` Markus Trippelsdorf
2011-11-21 20:27                                       ` Benjamin Herrenschmidt [this message]
2011-11-21 21:30                                         ` Pekka Enberg
2011-11-21 21:43                                           ` Christoph Lameter
2011-11-22  0:21                                         ` Christian Kujau
2011-11-22  0:42                                           ` Christian Kujau
2011-11-22  2:17                                           ` Benjamin Herrenschmidt
2011-11-22  8:37                                             ` Christian Kujau
2011-11-22  3:18                                           ` Christoph Lameter
2011-11-22  7:48                                             ` Eric Dumazet
2011-11-22  7:51                                               ` Markus Trippelsdorf
2011-11-22  8:27                                               ` Eric Dumazet
2011-11-23  7:13                                                 ` Markus Trippelsdorf
2011-11-23  7:20                                                   ` Eric Dumazet
2011-11-22  8:39                                               ` Christian Kujau
2011-11-22 22:16                                                 ` Benjamin Herrenschmidt
2011-11-22 22:31                                                   ` Eric Dumazet
2011-11-22 22:32                                                   ` Christoph Lameter
2011-11-22 21:58                                               ` Benjamin Herrenschmidt
2011-11-22 23:12                                                 ` Christian Kujau
2011-11-23  0:18                                                   ` Benjamin Herrenschmidt
2011-11-23  1:22                                                     ` Christian Kujau
2011-11-23  1:43                                                       ` Benjamin Herrenschmidt
2011-11-23  5:51                                                     ` Christian Kujau
2011-11-23  6:59                                                       ` Pekka Enberg
2011-11-23 15:14                                                         ` slub: use irqsafe_cpu_cmpxchg for put_cpu_partial Christoph Lameter
2011-11-23 16:04                                                           ` Eric Dumazet
2011-11-23 18:33                                                           ` Christian Kujau
2011-11-24  6:45                                                             ` Pekka Enberg
2011-11-23 23:15                                                           ` David Rientjes
2011-11-22  8:45                                             ` WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413 Markus Trippelsdorf
2011-11-22  9:25                                               ` Eric Dumazet
2011-11-22  9:27                                                 ` Eric Dumazet
2011-11-22  9:38                                               ` Eric Dumazet
2011-11-22  9:46                                                 ` Eric Dumazet
2011-11-22 14:46                                                   ` Christoph Lameter
2011-11-22 14:52                                                     ` Eric Dumazet
2011-11-22 15:02                                                       ` Christoph Lameter
2011-11-22 15:07                                                         ` Christoph Lameter
2011-11-22 16:20                                                           ` Christoph Lameter
2011-11-22 16:32                                                             ` Eric Dumazet
2011-11-22 16:36                                                               ` Christoph Lameter
2011-11-22 16:41                                                                 ` Christoph Lameter
2011-11-22 16:53                                                                   ` slub: Lockout validation scans during freeing of object Christoph Lameter
2011-11-22 17:21                                                                     ` Eric Dumazet
2011-11-22 17:40                                                                       ` Christoph Lameter
2011-11-22 18:55                                                                         ` Markus Trippelsdorf
2011-11-22 19:20                                                                           ` Christoph Lameter
2011-11-22 19:32                                                                             ` Markus Trippelsdorf
2011-11-22 19:46                                                                               ` Christoph Lameter
2011-11-22 17:59                                                                       ` Christoph Lameter
2011-11-22 11:21                                                 ` WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413 Markus Trippelsdorf
2011-11-22 14:50                                                   ` Christoph Lameter
2011-11-22 14:44                                                 ` Christoph Lameter
2011-11-21 15:51                       ` Markus Trippelsdorf
2011-11-23 16:03                       ` Markus Trippelsdorf
2011-11-23 16:06                         ` Christoph Lameter
2011-11-24  8:50                           ` Markus Trippelsdorf
2011-12-01  8:44                             ` Markus Trippelsdorf
2011-12-01  8:53                               ` Pekka Enberg
2011-12-02 19:43                               ` Jerome Glisse
2011-12-02 20:06                                 ` Markus Trippelsdorf
2011-12-02 20:48                                   ` Markus Trippelsdorf
2011-12-07 14:32                                     ` Robert Richter
2011-12-07 14:39                                       ` Markus Trippelsdorf
2011-12-02 23:04                             ` Jerome Glisse
2011-12-03  9:28                               ` Markus Trippelsdorf
2011-12-03 12:20                                 ` Dave Airlie
2011-12-03 12:29                                   ` Markus Trippelsdorf
2011-12-03 19:31                                     ` Jerome Glisse
2011-12-03 19:32                                       ` Jerome Glisse
2011-12-04  1:02                                       ` Markus Trippelsdorf
2011-12-04 17:32                                         ` Jerome Glisse
2011-12-05 17:10                                         ` Jerome Glisse
2011-12-05 18:15                                           ` Markus Trippelsdorf
2011-12-05 18:43                                             ` Jerome Glisse
2011-12-05 19:11                                             ` Jerome Glisse
2011-12-05 19:27                                               ` Markus Trippelsdorf
2011-12-05 20:10                                                 ` Pekka Enberg
2011-12-05 20:20                                                   ` Jerome Glisse
2011-12-05 10:44                                     ` David Laight

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