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Date: Wed, 4 Apr 2007 15:59:51 -0700 (PDT)
From: Christoph Lameter <clameter@....com>
To: Badari Pulavarty <pbadari@...il.com>
cc: Andrew Morton <akpm@...ux-foundation.org>,
lkml <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.21-rc5-mm4 (SLUB)
On Wed, 4 Apr 2007, Badari Pulavarty wrote:
> Here is the slub_debug=FU output with the above patch.
Hmmm... Looks like the object is actually free. Someone writes beyond the
end of the earlier object. Setting Z should check overwrites but it
switched off merging. So set
slub_debug = FZ
Analoguos to the last patch you would need to take out redzoning from
the flags that stop merging. Then rerun. Maybe we can track it down this
way.
Hmmm... Maybe remove all the debug flags from those that avoid merging and
then run with full debug. That should theoretically flush it out.
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