Re: [PATCH] x86: Disable HPET MSI on ATI SB700/SB800

[Andreas Herrmann]

On Fri, Jan 22, 2010 at 11:21:06PM -0800, Yuhong Bao wrote:
> 
> > HPET MSI on platforms with ATI SB700/SB800 as they seem to have some
> > side-effects on floppy DMA. Do not use HPET MSI on such platforms.

Argh, will see what information I can find about this problem ...

> I think somebody from AMD should review the situation.Clearly
  something is happening inside their southbridge.CCing Andreas
  Herrmann from AMD.

I have the feeling that this problem should rather be fixed with a DMI
quirk instead of disabling HPET MSI for the entire chipset.

Was the latest available BIOS installed on the affected system?


Thanks,
Andreas

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