Messages in this thread | | | Date | Tue, 22 Jan 2008 01:39:28 +0000 | From | Alan Cox <> | Subject | Re: ATA device reset, shoud I be concerned? |
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> Could you point me to some bugreports? > > I would like to know more about hosts/conditions for which it happens.
The timer reset path races the I/O path races the interrupt path. That was the vomitously foul race that persuaded me to go libata instead. I seem to remember explaining this all some time ago.
The root cause is that we drop the lock on some error paths. Unfortunately its almost impossible to fix that without having an infrastructure for quiescing the driver and running a separate error handling context (the way scsi does).
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