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SubjectRe: [git pull] IOMMU Updates for Linux v5.20
On Sat, Aug 06, 2022 at 12:39:54PM -0700, Linus Torvalds wrote:
> I'm currently bisecting a boot failure on my desktop, and it's gone
> into the iommu code.
>
> I'm assuming it's the 64-bit thing, but I'll bisect further to make sure.
>
> If it is, it will be reverted as hopelessly optimistic.

A faster way to track down whether this change causes the boot failures
on your machine is to boot with iommu.forcedac=0 to disable the new
behavior and see if the issue goes away.

Please let me know if I can help with anything.

Regards,

Joerg

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