Re: Stardom SATA HSM violation

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Tejun Heo wrote:
Alan Cox wrote:
I think there have been enough cases where this draining was necessary.
 IIRC, ata_piix was involved in those cases, right?  If so, can you
please submit a patch which applies this only to affected controllers?
I don't feel too confident about applying this to all SFF controllers.
Old IDE does it on all controllers bar a couple. So we have a very good
knowledge of what does/doesn't work. The one that needs care in old ide
is an ordering issue where a state machine reset done first causes the
drain of the I/O to hang.

Hmmm... So, do we apply draining to all PATA?  Or is ata_piix SATA
affected too?

ata_piix SATA is definitely affected when a PATA_drive to SATA_host bridge is present.
Possibly other times.

Cheers

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