Re: [git pull request] ACPI patches for 2.6.34-rc6

Matthew Garrett
2010-05-11T17:59:16Z

On Tue, May 11, 2010 at 10:42:52AM -0700, Linus Torvalds wrote:

> Maybe windows does something else? Or do you _see_ windows doing that
> write?

I see Windows write the SCI_EN bit without reading it first and without
calling the ACPI enable SMM function.

> will write it _even_if_ the bit was already set. That could explain
> Rafael's problems too - writing the register directly may be the
> RightThing(tm), but writing it if the bit was already set may well cause
> some confusion.

Like I said, I don't see any reads on resume - only on system boot.

--
Matthew Garrett | mjg59@srcf.ucam.org