linux-kernel - Re: [BUG] slub crashes on dma allocations

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Message-ID: <20100527190440.GA2205@osiris.boeblingen.de.ibm.com>
Date:	Thu, 27 May 2010 21:04:40 +0200
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	Christoph Lameter <cl@...ux-foundation.org>
Cc:	Pekka Enberg <penberg@...helsinki.fi>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [BUG] slub crashes on dma allocations

On Thu, May 27, 2010 at 09:17:17AM -0500, Christoph Lameter wrote:
> 
> So S390 has NUMA and the minalign is allowing very small slabs of 8/16/32 bytes?

No NUMA, but minalign is 8.

> Try this patch
> 
> From: Christoph Lameter <cl@...ux-foundation.org>
> Subject: SLUB: Allow full duplication of kmalloc array for 390
> 
> Seems that S390 is running out of kmalloc caches.
> 
> Increase the number of kmalloc caches to a safe size.
> 
> Signed-off-by: Christoph Lameter <cl@...ux-foundation.org>

Yes, that fixes the bug. Thanks!
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