[Bug 111153] run gfxbench manhattan in virtio-gpu guest causes host i915 recoverable gpu hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111153

            Bug ID: 111153
           Summary: run gfxbench manhattan in virtio-gpu guest causes host
                    i915 recoverable gpu hang
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: zhenyu.z.wang at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

This case is to run gfxbench manhattan in qemu VM with virtio-gpu enabled and
qemu uses "-display sdl,gl=es". It would cause host i915 gpu hang but
recoverable.

I tried to take a apitrace for this which can produce this hang without need to
setup qemu guest.
https://drive.google.com/open?id=1T6A2d--VnVZBMvM0CvjSa6ecWd50OCmi

Any idea or help on how to debug on this would be appreciated.

btw, I'm not sure if this is related to bug 108898.

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