On Iau, 2005-12-08 at 08:52 -0500, Jeff Garzik wrote:
> On Thu, Dec 08, 2005 at 01:39:45PM +0000, Matthew Garrett wrote:
> > On Thu, Dec 08, 2005 at 01:33:08PM +0000, Christoph Hellwig wrote:
> >
> > > Don't do it at all. We don't need to fuck up every layer and driver for
> > > intels braindamage.
> >
> > Doing SATA suspend/resume properly on x86 depends on knowing the ACPI
> > object that corresponds to a host or target.
>
> Not true.
Actually he is right. You have to know the ACPI object in order to run
the _GTM/_STM etc functions. If you don't run those your suspend/resume
may not work, may corrupt and so on. The only safe alternative is to
disable acpi which, while it would have been a good idea before the spec
ever got out, is a bit late now.
If you don't run the resume methods your disk subsystem status after a
resume is simply undefined and unsafe.
Alan
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