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Subject: Re: Linux v2.6.21-rc3
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>, Greg KH <greg@kroah.com>,
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Date: Thu, 08 Mar 2007 09:10:01 +0100
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On Wed, 2007-03-07 at 21:52 +0100, Arnd Bergmann wrote:
> On Wednesday 07 March 2007 16:39:00 Linus Torvalds wrote:
> > So did you hunt it down to a particular cases where it triggers?
> 
> IIRC, it crashed on boot in the powerpc iommu code when slab
> debugging is enabled. Not sure if it was on Cell or on benh's
> powerbook though.

Not iommu code, but dma_alloc_coherent() for non-iommu 32 bits
machines :-) Oh and it wasn't slab but DEBUG_PAGEALLOC :-)

Ben.