[Bug 60391] [ilk regression] 3.7.x corrupt console image, hard hang starting X

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=60391

--- Comment #18 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to comment #16)
> Is turning off IOMMU just a diagnostic exercise, or is it
> usually a better choice?

Better choice. At least if you are using Intel graphics since there were a few
errata in the silicon that prevent it from functioning properly (and the
workarounds we have are to stall the GPU every time we update its page tables),
and I think we've found another one.

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