[Bug 90726] New: GPU HANG: ecode 3:0:0x765fffc1, reason: Ring hung, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90726

            Bug ID: 90726
           Summary: GPU HANG: ecode 3:0:0x765fffc1, reason: Ring hung,
                    action: reset
           Product: DRI
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: fourdan at xfce.org
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 116117
  --> https://bugs.freedesktop.org/attachment.cgi?id=116117&action=edit
gzip'ed copy of /sys/class/drm/card0/error

Seems that Bug #89953 occurred again...

System hang for a sec, GPU reset, screen is all garbled now.

  [drm] stuck on render ring
  [drm] GPU HANG: ecode 3:0:0x765fffc1, in systemd-logind [685], reason: Ring
hung, action: reset
  [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack,
including userspace.
  [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI ->
DRM/Intel
  [drm] drm/i915 developers can then reassign to the right component if it's
not a kernel issue.
  [drm] The gpu crash dump is required to analyze gpu hangs, so please always
attach it.
  [drm] GPU crash dump saved to /sys/class/drm/card0/error
  drm/i915: Resetting chip after gpu hang

HW is an ACER Aspire One

00:02.0 0300: 8086:27ae (rev 03) (prog-if 00 [VGA controller])
    Subsystem: 1025:015b
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
    Latency: 0
    Interrupt: pin A routed to IRQ 16
    Region 0: Memory at 58480000 (32-bit, non-prefetchable) [size=512K]
    Region 1: I/O ports at 60c0 [size=8]
    Region 2: Memory at 40000000 (32-bit, prefetchable) [size=256M]
    Region 3: Memory at 58500000 (32-bit, non-prefetchable) [size=256K]
    Expansion ROM at <unassigned> [disabled]
    Capabilities: <access denied>
    Kernel driver in use: i915
    Kernel modules: i915

Kernel is 4.0.4 on Fedora 22.

DDX is xorg-x11-drv-intel-2.99.917-9.20150520 (ie git snapshot from May 20th,
2015)

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