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SubjectRe: [RFT][PATCH v7] sata_mv: convert to new EH
dean gaudet wrote:
> On Wed, 11 Jul 2007, Jeff Garzik wrote:
>
>> As before, this patch is against 2.6.22 with no other patches needed nor
>> applied.
>>
>> In this revision, interrupt handling was improved quite a bit,
>> particularly for EDMA. The WARNING in mv_get_crpb_status() goes away,
>> because that routine went away. Its EDMA handling was potentially racy
>> as well. It was replaced with a loop in mv_intr_edma() that guarantees
>> it always clears responses out of the queue, not a single response.
>>
>> Here's hoping that the WARNING in mv_qc_issue() goes away as well, but I
>> am less than 50% confident that will happen.
>>
>> The driver is making substantial progress with all these improvements,
>> though, in searching for the cause of this hardware behavior :)
>>
>> Though if mv_qc_issue() still warns, I would be interested to know if
>> this driver works OK if the mv_qc_issue() warning is simply removed at
>> that point...
>
> oh very nice... no warnings on boot, and no warnings while i "dd
> if=/dev/sdX of=/dev/null" and i'm seeing 74MB/s+ from each disk on this
> simple read test.
>
> for lack of a better test i started an untar/diff stress test on the
> disks... we'll see how it goes. (it's based on doug ledford's
> memtest.sh)

Thanks for the testing. Looks like we might have hit on something good...

Jeff



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