[Bug 92531] New: GPU HANG on Intel Iris Pro 6200 (i5-5675C CPU)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92531

            Bug ID: 92531
           Summary: GPU HANG on Intel Iris Pro 6200 (i5-5675C CPU)
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: bugs.fdo at re-gister.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 118975
  --> https://bugs.freedesktop.org/attachment.cgi?id=118975&action=edit
/sys/class/drm/card0/error output

I am occasionally experiencing GPU hangs on my computer. The configuration is a
PC with an Intel i5-5675C (non-overclocked) running Gentoo Linux with a 4.2.3
kernel.
The hangs seem to occur randomly, sometimes when running an OpenGL game,
sometimes when just sitting at the desktop idleing.
This causes the desktop to freeze for a few seconds. After the GPU has been
reset, it is back to normal.

dmesg output:

[147443.830208] DMAR: DRHD: handling fault status reg 3
[147443.830213] DMAR: DMAR:[DMA Read] Request device [00:02.0] fault addr
21f9e000 
                DMAR:[fault reason 05] PTE Write access is not set
[147443.830219] DMAR: DRHD: handling fault status reg 3
[147443.830221] DMAR: DMAR:[DMA Read] Request device [00:02.0] fault addr
21fad000 
                DMAR:[fault reason 05] PTE Write access is not set
[147443.830399] DMAR: DRHD: handling fault status reg 3
[147443.830401] DMAR: DMAR:[DMA Write] Request device [00:02.0] fault addr
21f9e000 
                DMAR:[fault reason 23] Unknown
[147449.741936] [drm] stuck on render ring
[147449.742725] [drm] GPU HANG: ecode 8:0:0x85dffffb, in X [5694], reason: Ring
hung, action: reset
[147449.742726] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[147449.742727] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[147449.742728] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[147449.742728] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[147449.742729] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[147449.743906] drm/i915: Resetting chip after gpu hang
[147449.753533] DMAR: DRHD: handling fault status reg 3
[147449.753536] DMAR: DMAR:[DMA Read] Request device [00:02.0] fault addr
21f9e000 
                DMAR:[fault reason 05] PTE Write access is not set
[147449.753642] DMAR: DRHD: handling fault status reg 3
[147449.753644] DMAR: DMAR:[DMA Write] Request device [00:02.0] fault addr
21f9e000 
                DMAR:[fault reason 23] Unknown
[147455.738289] [drm] stuck on render ring
[147455.739157] [drm] GPU HANG: ecode 8:0:0x85dffffb, in X [5694], reason: Ring
hung, action: reset
[147455.739212] [drm:i915_set_reset_status] *ERROR* gpu hanging too fast,
banning!
[147455.740301] drm/i915: Resetting chip after gpu hang

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