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

From: Hugh Dickins
Date: Sun Jun 24 2007 - 06:25:28 EST


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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