Messages in this thread | | | Date | Wed, 13 Jul 2016 10:18:17 +0200 | From | Joerg Roedel <> | Subject | Re: IOMMU+DMAR causing NMIs-s (was: 4.7-rc6: NMI in intel_idle on HP Proliant G6) |
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On Wed, Jul 13, 2016 at 10:17:59AM +0300, Meelis Roos wrote: > Bisecting kernel configs shows that it's DMAR+IOMMU. When it is > activated, there is high probability of NMI-s in random places.
Hmm, strange. But nothing could really surprise when you have an HP BIOS.
Can you probably use the faulty config and bisect this down to a specific commit? In v4.7-rc1 some changes to the iova-allocation code got merged, but I have no idea how those could cause NMIs.
Thanks,
Joerg
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