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SubjectRe: 3.2rc1: bootup fails: DRHD: handling fault status reg 2

Am 14.11.2011 23:33, schrieb Arnd Hannemann:

> when trying to boot kernel 3.2rc1 on my thinkpad t510 I get an endless loop of errors:
> DRHD: handling fault status reg 2
> DMAR: [DMA Read] Request device [0d:00.0] fault addr fffff000
> DMAR: [fault reason 02] Present bit in context entry is clear
> screenshot can be found here:
> kernel 3.1.1 is booting up flawlessly.

I must have inadvertently enabled CONFIG_INTEL_IOMMU_DEFAULT_ON in my config
for 3.2-rc1.

With disabled CONFIG_INTEL_IOMMU_DEFAULT_ON my thinkpad boots up again.
Not sure if this is expected?

Best regards

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