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From: Ingo Molnar <mingo@elte.hu>
To: David Miller <davem@davemloft.net>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	penberg@cs.helsinki.fi, vegard.nossum@gmail.com, rjw@sisk.pl
Subject: Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison overwritten
Date: Fri, 18 Jul 2008 00:06:00 +0200	[thread overview]
Message-ID: <20080717220600.GA1701@elte.hu> (raw)
In-Reply-To: <20080717.144504.96425101.davem@davemloft.net>


* David Miller <davem@davemloft.net> wrote:

> From: Ingo Molnar <mingo@elte.hu>
> Date: Thu, 17 Jul 2008 23:42:22 +0200
> 
> > 
> > A regression to v2.6.26:
> > 
> > I started getting this skb-head corruption message today, on a T60 
> > laptop with e1000:
> 
> This is very unlikely to be added by us networking folks, no 
> networking merges have happened for the 2.6.27 merge window yet :-)

yeah. That's why i observed:

> > Perhaps SLUB debugging got smarter?

and Cc:-ed SLUB folks. Could be a sleeper cell of bugs gone active ;-) 

Or could be SLUB (-debugging) breakage. Netconsole is pretty reliable on 
this box. (and the bootup continued just fine after this report)

Just re-tried it, the bug is reliably repeatable. Will try a bisection 
run.

	Ingo

  reply	other threads:[~2008-07-17 22:06 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-17 21:42 [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison overwritten Ingo Molnar
2008-07-17 21:45 ` David Miller
2008-07-17 22:06   ` Ingo Molnar [this message]
2008-07-17 22:09     ` David Miller
2008-07-17 22:43     ` Ingo Molnar
2008-07-17 23:15 ` Vegard Nossum
2008-07-17 23:35   ` Vegard Nossum
2008-07-17 23:52   ` Ingo Molnar
2008-07-18  0:01     ` Ingo Molnar
2008-07-18  0:05     ` Vegard Nossum
2008-07-18  0:16       ` Ingo Molnar
2008-07-18  2:13     ` David Miller
2008-07-18  2:03   ` David Miller
2008-07-18  7:03     ` Vegard Nossum
2008-07-18  7:12       ` David Miller
2008-07-18  9:05       ` Ingo Molnar
2008-07-18 19:10       ` [bug] Attempt to release alive inet socket f6fac040 Ingo Molnar
2008-07-18 19:55         ` Ingo Molnar
2008-07-17 23:27 ` [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison overwritten Vegard Nossum
2008-07-17 23:56   ` Ingo Molnar
2008-07-21 11:41     ` Vegard Nossum
2008-07-18  5:46 ` Evgeniy Polyakov
2008-07-18  9:02   ` Pekka Enberg
2008-07-18  9:09     ` Ingo Molnar
2008-07-18  9:15       ` Pekka Enberg
2008-07-18 10:16     ` Evgeniy Polyakov
2008-07-18 14:44       ` Pekka Enberg
2008-07-18 14:48         ` Christoph Lameter
2008-07-18 16:07         ` Evgeniy Polyakov
2008-07-18  9:00 ` Pekka J Enberg
2008-07-18  9:11   ` Ingo Molnar
2008-07-18  9:16     ` Pekka Enberg
2008-07-18 13:54       ` Christoph Lameter
2008-07-21  9:41     ` Ingo Molnar
2008-07-21  9:52       ` Pekka Enberg
2008-07-21  9:52         ` Pekka Enberg
2008-07-21 10:06         ` Evgeniy Polyakov
2008-07-21 10:50           ` Ingo Molnar
2008-07-21 11:03             ` Vegard Nossum
2008-07-21 11:13               ` Ingo Molnar
2008-07-21 16:19               ` Christoph Lameter
2008-07-21 20:23                 ` Vegard Nossum
2008-07-21 11:25             ` Evgeniy Polyakov
2008-07-21 11:55               ` Ingo Molnar
2008-07-21 12:57                 ` Evgeniy Polyakov
2008-07-21 14:01                   ` Ingo Molnar
2008-07-21 19:21                 ` Ingo Molnar
2008-07-21 21:24                   ` Evgeniy Polyakov
2008-07-21 23:33                     ` David Miller
2008-07-22  7:50                       ` Ingo Molnar
2008-07-22 13:34                         ` Ingo Molnar
2008-07-23 22:31                           ` David Miller
2008-07-23 22:40                             ` Jeff Kirsher
2008-07-21 16:22           ` Christoph Lameter
2008-07-21 19:57             ` Evgeniy Polyakov
2008-07-21 20:05               ` Ingo Molnar
2008-07-21 20:22                 ` Vegard Nossum
2008-07-18 13:55   ` Christoph Lameter

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