linux-kernel - Re: [PATCH] CDROM: use kmalloced buffers instead of buffers on stack

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Message-ID: <20080326111310.GC15355@kernel.dk>
Date:	Wed, 26 Mar 2008 12:13:10 +0100
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] CDROM: use kmalloced buffers instead of buffers on stack

On Sun, Mar 23 2008, Thomas Bogendoerfer wrote:
> If cdrom commands are issued to a scsi drive in most cases the buffer
> will be filled via dma. This leads to bad stack corruption on non coherent
> platforms, because the buffers are neither cache line aligned nor is
> the size a multiple of the cache line size. Using kmalloced buffers
> avoids this.
> 
> Signed-off-by: Thomas Bogendoerfer <tsbogend@...ha.franken.de>

Thanks Thomas, applied.

-- 
Jens Axboe

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