Re: 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, Jun 3, 2009 at 10:21 PM, Kasper Sandberg <lkml@xxxxxxxxxxx> wrote:
> On Wed, 2009-06-03 at 21:30 +0200, Torsten Kaiser wrote:
>> On Wed, May 27, 2009 at 1:40 AM, Robert Hancock <hancockrwd@xxxxxxxxx> 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
>> >
>>
>> Still happens with 2.6.30-rc8 (see trace at the end of the email)
>>
> <snip>
>
> Does this actually give you any problems? should I be scared to give .30
> a test?

No, other then the warning from this debug code I do not have any problems.

As I'm using Gentoo unstable this is triggered most often when I
install an upgrade to some package.
I would expect, if this really would write wrong data to the harddisk,
I would have already destroyed my system.

So while I think there is a problem somewhere that should be fixed,
I'm still using the .30 kernel for my system.

Torsten
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