Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison overwritten | KernelTrap

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison overwritten

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From: Ingo Molnar <mingo@...>

To: David Miller <davem@...>

Cc: <linux-kernel@...>, <netdev@...>, <penberg@...>, <vegard.nossum@...>, <rjw@...>

Subject: Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison overwritten

Date: Thursday, July 17, 2008 - 6:43 pm

* Ingo Molnar <mingo@elte.hu> wrote:

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

hm, but it was not reproducible on the third and fourth attempt :-( I 
tried hard to provoke it by generating artificial parallel network and 
netconsole output - but it didnt want to trigger. Heisenbug ...

Maybe the debug output gives someone an idea about the nature of the 
bug?

	Ingo
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Messages in current thread:

[bug, netconsole, SLUB] BUG skbuff_head_cache: Poison overwr..., Ingo Molnar, (Thu Jul 17, 5:42 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Pekka J Enberg, (Fri Jul 18, 5:00 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Christoph Lameter, (Fri Jul 18, 9:55 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Fri Jul 18, 5:11 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Mon Jul 21, 5:41 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Pekka Enberg, (Mon Jul 21, 5:52 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Evgeniy Polyakov, (Mon Jul 21, 6:06 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Christoph Lameter, (Mon Jul 21, 12:22 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Evgeniy Polyakov, (Mon Jul 21, 3:57 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Mon Jul 21, 4:05 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Vegard Nossum, (Mon Jul 21, 4:22 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Mon Jul 21, 6:50 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Evgeniy Polyakov, (Mon Jul 21, 7:25 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Mon Jul 21, 7:55 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Mon Jul 21, 3:21 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Evgeniy Polyakov, (Mon Jul 21, 5:24 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., David Miller, (Mon Jul 21, 7:33 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Tue Jul 22, 3:50 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Tue Jul 22, 9:34 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., David Miller, (Wed Jul 23, 6:31 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Jeff Kirsher, (Wed Jul 23, 6:40 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Evgeniy Polyakov, (Mon Jul 21, 8:57 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Mon Jul 21, 10:01 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Vegard Nossum, (Mon Jul 21, 7:03 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Christoph Lameter, (Mon Jul 21, 12:19 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Vegard Nossum, (Mon Jul 21, 4:23 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Mon Jul 21, 7:13 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Pekka Enberg, (Fri Jul 18, 5:16 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Christoph Lameter, (Fri Jul 18, 9:54 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Evgeniy Polyakov, (Fri Jul 18, 1:46 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Pekka Enberg, (Fri Jul 18, 5:02 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Evgeniy Polyakov, (Fri Jul 18, 6:16 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Pekka Enberg, (Fri Jul 18, 10:44 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Evgeniy Polyakov, (Fri Jul 18, 12:07 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Christoph Lameter, (Fri Jul 18, 10:48 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Fri Jul 18, 5:09 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Pekka Enberg, (Fri Jul 18, 5:15 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Vegard Nossum, (Thu Jul 17, 7:27 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Thu Jul 17, 7:56 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Vegard Nossum, (Mon Jul 21, 7:41 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Vegard Nossum, (Thu Jul 17, 7:15 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., David Miller, (Thu Jul 17, 10:03 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Vegard Nossum, (Fri Jul 18, 3:03 am)

Re: [bug] Attempt to release alive inet socket f6fac040, Ingo Molnar, (Fri Jul 18, 3:10 pm)

Re: [bug] Attempt to release alive inet socket f6fac040, Ingo Molnar, (Fri Jul 18, 3:55 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Fri Jul 18, 5:05 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., David Miller, (Fri Jul 18, 3:12 am)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Thu Jul 17, 7:52 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., David Miller, (Thu Jul 17, 10:13 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Vegard Nossum, (Thu Jul 17, 8:05 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Thu Jul 17, 8:16 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Thu Jul 17, 8:01 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Vegard Nossum, (Thu Jul 17, 7:35 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., David Miller, (Thu Jul 17, 5:45 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Thu Jul 17, 6:06 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., Ingo Molnar, (Thu Jul 17, 6:43 pm)

Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison ov..., David Miller, (Thu Jul 17, 6:09 pm)

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