[Bug 91127] Graphics problems with intel_iommu=on on Linux >= 3.7

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91127

Ting-Wei Lan <lantw44 at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      i915 platform|                            |ILK

--- Comment #11 from Ting-Wei Lan <lantw44 at gmail.com> ---
After upgrading to Linux 4.2-rc2, I see a lot of these messages in dmesg:

DMAR: DMAR:[DMA Write] Request device [00:02.0] fault addr <some_addr>
DMAR:[fault reason 05] PTE Write access is not set

There is no crash after running it for more than one hour. I will run the
system longer to make sure that it really doesn't crash.

A dmesg log of Linux 4.2-rc2 is attached.

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