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: Christoph Lameter <cl@...>

To: Pekka J Enberg <penberg@...>

Cc: Ingo Molnar <mingo@...>, <linux-kernel@...>, <netdev@...>, Vegard Nossum <vegard.nossum@...>, Rafael J. Wysocki <rjw@...>, <davem@...>, <johnpol@...>

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

Date: Friday, July 18, 2008 - 9:55 am

>> INFO: 0xf658ae9c-0xf658ae9c. First byte 0x6a instead of 0x6b
quoted text> 
> 0x6b is POISON_FREE so 0x6a is one bit corruption.

Typically this means that a refcount at the head of the object was decremented. But the object was already freed.
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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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