Re: 2.6.29 regression: ATA bus errors on resume

From: Tejun Heo
Date: Tue May 26 2009 - 00:59:21 EST

Alan Cox wrote:
>> something to the cdrom which is attached to ata2. Something very
>> fishy is going on there. Sounds like an electric or some sort of
>> interference problem but I'm not sure. :-(
> I'm just wondering what happens on a resume if a phy change event is seen
> by the phy before or during the time registers (such as the port mappings
> on an ICH) are being restored (or not restored even). That seems to be one
> way you could get an event on the wrong port.

It doesn't really matter. Before the ports are resumed, all such
events are ignored.


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