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SubjectRe: [PATCH] x86: Disable HPET MSI on ATI SB700/SB800
> If one wanted, you could disable HPET MSI on this chipset only when a 
> driver requests an ISA DMA channel. Then if there's no floppy or other LPC
> DMA device present, it can stay enabled. I don't know if it's worth the
> trouble, though.

There can be LPC devices which are not visible to the kernel,
but only used through ACPI or the BIOS. Think of fancy fan
controllers and similar.

-- -- Speaking for myself only.

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