[Bug 98463] New: [i915][HSW] GPU hang when starting the Dolphin emulator with Vulkan

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98463

            Bug ID: 98463
           Summary: [i915][HSW] GPU hang when starting the Dolphin
                    emulator with Vulkan
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: rick.2889 at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 127574
  --> https://bugs.freedesktop.org/attachment.cgi?id=127574&action=edit
Crash dump as requested

When attempting to use the Vulkan backend of the Dolphin emulator, a GPU hang
occurs and i915 resets the chip.

I am using a Core i5 4200U with HD Graphics 4400 in an Acer Aspire V7-582PG
laptop.
My OS is Arch Linux, with Mesa 13 rc2 and LLVM 3.9 (vulkan-intel 13.0.0rc2-2 is
installed), although the same error occurs on Mesa 12 and LLVM 3.8. I am
running on kernel 4.8.4.
I am using Dolphin 5.0, revision 1148
(https://dolphin-emu.org/download/dev/838b23431761467c6f3dca8a1924950cf4dc2260/).

After the hang occurred, I can see these messages in my dmesg log:
[  172.787461] [drm] GPU HANG: ecode 7:0:0x85dffffc, in Emuthread - Sta
[11038], reason: Hang on render ring, action: reset
[  172.787462] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[  172.787463] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[  172.787463] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[  172.787464] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[  172.787464] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  172.787536] drm/i915: Resetting chip after gpu hang

Any subsequent run also hangs the GPU but just returns the last line of that
error message.

Attached is the crash dump as described.

Please do ask for further details if needed, I will try my best to provide any
additional information.

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