[Bug 99028] [KVM][GVT-d] [BDW & SKL ]Ubuntu 16.04 guest boot up with GPU Hang with drm-intel kernel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99028

--- Comment #11 from XiongZhang <xiong.y.zhang at intel.com> ---
I use upstream 4.9 kernel as host and guest kernel, I also see GPU hang in
guest.
git bisect tell me the first bad commit is:
commit 49ef5294cda256aa5496ba56bbf859d3c7a17e07
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Thu Aug 18 17:17:00 2016 +0100

    drm/i915: Move fence tracking from object to vma

    In order to handle tiled partial GTT mmappings, we need to associate the
    fence with an individual vma.

    v2: A couple of silly drops replaced spotted by Joonas

    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>

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