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SubjectRe: SATA exceptions with 2.6.20-rc5
Jeff Garzik wrote:
>> Looks like all of these errors are from a FLUSH CACHE command and the
>> drive is indicating that it is no longer busy, so presumably done.
>> That's not a DMA-mapped command, so it wouldn't go through the ADMA
>> machinery and I wouldn't have expected this to be handled any
>> differently from before. Curious..
>
> It's possible the flush-cache command takes longer than 30 seconds, if
> the cache is large, contents are discontiguous, etc. It's a
> pathological case, but possible.
>
> Or maybe flush-cache doesn't get a 30 second timeout, and it should...?
> (thinking out loud)
>
> Jeff

If the flush was still in progress I would expect Busy to still be set,
however..

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