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

[Matthew Garrett]

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@xxxxxxxxxxxxx
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/