linux-kernel - Re: slab error in verify_redzone

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Message-ID: <20090203040516.GA11835@plap4-2.local>
Date:	Mon, 2 Feb 2009 20:05:16 -0800
From:	Andrew Vasquez <andrew.vasquez@...gic.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	"matthew@....cx" <matthew@....cx>,
	"gregkh@...e.de" <gregkh@...e.de>,
	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Seokmann Ju <seokmann.ju@...gic.com>
Subject: Re: slab error in verify_redzone_free() badness...

On Mon, 02 Feb 2009, Andrew Morton wrote:

> I'd be suspecting a bug in the caller.
> 
> Try setting CONFIG_DEBUG_PAGEALLOC, and use slab.c (not slub).  slab
> will perform page unmapping for those 2k-sized slabs.  I don't know
> whether slub does that.
> 
> All being well, you'll get a nice oops at the site of the improper
> reference.

Thanks for the tip...  Yeah, we're triaging this further, as it seems
to be pointing to something in the recent 'refactoring/multi-q' code
in qla2xxx...

--
av
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