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SubjectRe: [PATCH] block: fix residual byte count handling
Tejun Heo wrote:
> FUJITA Tomonori wrote:
>>> Aiee... device going down after timing out on READ_DISC_INFO. That's
>>> gruesome. Can you please try the other patches?
>> Tejun, I thought that libata needs a fix for sum(sg) != rq->data_len. No?
>
> The extra_len you added to qc->nbytes should be it. The only other
> place to pay attention is the ATAPI transfer chunk size and your patch
> seems to get it right.
>
>> Now Jens' git tree should work with all the non libata stuff, ide,
>> firewire, bsg, etc. But I'm not sure about libata.
>
> With the second patch, all others should be fine no matter what. I'll
> go check libata part again.

I can reproduce the problem here and it's very weird. I'll report back
when I know more.

--
tejun


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