[Bug 82626] New: i915, ring hung

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=82626

          Priority: medium
            Bug ID: 82626
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: i915, ring hung
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: tpeland at tuug.fi
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Intel
           Product: DRI

Created attachment 104627
  --> https://bugs.freedesktop.org/attachment.cgi?id=104627&action=edit
contents of /sys/class/drm/card0/error

Bug description:
Playing "Guild Wars 2" under Wine v1.6.2 causes program to crash and
dmesg message "stuck on render ring". Occurs on average once every 7 
hours.


System environment:
-- chipset: Intel Corporation 7 Series/C210 Series Chipset ; Intel(R) Core(TM)
i5-3570K CPU @ 3.40GHz
-- system architecture: 64-bit (but Gw2.exe is 32 bit!)
-- xf86-video-intel: 2.99.911
-- xserver: 1.15.1
-- mesa: 10.1.1 [32 & 64 bit]
-- libdrm: 2.4.52 [32 & 64 bit]
-- kernel: 3.16.0
-- Linux distribution: Gentoo
-- Display connector: displayport

Reproducing steps:
Occurs randomly while playing but mostly when there is a lot effects to
display.

Additional info:
Attachment _sys_class_drm_card0_error.txt contains the contents of
/sys/class/drm/card0/error.

dmesg text:
11536.104980] [drm] stuck on render ring
[11536.105595] [drm] GPU HANG: ecode 0:0x85ff1c1a, in Gw2.exe [1912], reason:
Ring hung, action: reset
[11536.105596] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[11536.105597] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[11536.105597] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[11536.105598] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[11536.105598] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[11538.105899] [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off
[11542.111752] [drm] stuck on render ring
[11542.112397] [drm] GPU HANG: ecode 0:0x85ff1c1a, in Gw2.exe [1912], reason:
Ring hung, action: reset
[11544.113061] [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off

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