linux-kernel - Re: Oops in a driver while using SLUB as a SLAB allocator

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Message-ID: <Pine.LNX.4.64.0706241122030.27778@blonde.wat.veritas.com>
Date:	Sun, 24 Jun 2007 11:24:16 +0100 (BST)
From:	Hugh Dickins <hugh@...itas.com>
To:	Russell King <rmk+lkml@....linux.org.uk>
cc:	Christoph Lameter <clameter@....com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Nicolas Ferre <nicolas.ferre@....atmel.com>,
	ARM Linux Mailing List 
	<linux-arm-kernel@...ts.arm.linux.org.uk>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	Marc Pignat <marc.pignat@...s.ch>,
	Andrew Victor <andrew@...people.com>,
	Pierre Ossman <drzeus@...eus.cx>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: Oops in a driver while using SLUB as a SLAB allocator

On Sun, 24 Jun 2007, Russell King wrote:
> On Fri, Jun 22, 2007 at 07:39:33PM +0100, Hugh Dickins wrote:
> > I'm quite happy with this approach for 2.6.23-rc, along with your ARM
> > dma_map patch which (if I understood aright) rmk approved.
> 
> I didn't approve it.  Please re-read my reply - there are still some
> unanswered questions in it which _really_ need answering.

Sorry for misrepresenting you.

> The report talks about the AT91 machines.  These machines do not have
> cache coherent DMA.  Therefore, the code being patched should be
> optimised away by the compiler. *Or* we have even bigger problems.
> 
> Please forward the original problem report.

Done.
Hugh
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