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SubjectRe: sata_sil24 0000:04:00.0: DMA-API: device driver frees DMA sg list with different entry count [map count=13] [unmap count=10]
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On Wed, May 27, 2009 at 1:40 AM, Robert Hancock <hancockrwd@gmail.com> wrote:
> Torsten Kaiser wrote:
>>
>> On upgrading to 2.6.30-rc1 I enable the DMA-Debugging option
>> CONFIG_DMA_API_DEBUG=y
>> Since then I get the following or similar errors on each boot:
>
> Please retest with a newer -rc, this patch likely fixes it:
>
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5825627c9463581fd9e70f8285685889ae5bb9bb
>

I saw this with 2.6.30-rc1 the first time, but I'm not sure if it
broke during the merge window or if it was always broken, because I
did not have enable DMA_API_DEBUG with earlier kernels.

But I'm seeing it with all -rc since then. The traces I posted were
from -rc6 and -rc7.

Torsten


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