[Bug 93842] New: Sandy Bridge, Kernel 4.4: [drm] stuck on render ring

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun Jan 24 11:35:10 PST 2016


https://bugs.freedesktop.org/show_bug.cgi?id=93842

            Bug ID: 93842
           Summary: Sandy Bridge, Kernel 4.4: [drm] stuck on render ring
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: main.haarp at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 121246
  --> https://bugs.freedesktop.org/attachment.cgi?id=121246&action=edit
xz'ed crash dump

On a Thinkpad W520 using the Intel GPU, playing Zandronum (gzdoom) with the
(graphically intensive) Brutal Doom mod, every 5-15 minutes, a GPU hang occurs.

Usually, the GPU gets reset properly. Sometimes, however, it freezes the entire
system.

Linux Kernel 4.4.0, 64bit, mesa-11.0.6, xorg-server-1.17.4,
xf86-video-intel-2.99.917. No i915 cmdline parameters are in use. TearFree is
used.


The hang was also observed on kernel 4.1.12.


[drm] stuck on render ring
[drm] GPU HANG: ecode 6:0:0x91beffb8, in zandronum [3531], 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

...

[drm] stuck on render ring
[drm] GPU HANG: ecode 6:0:0x85fffffc, in zandronum [3531], reason: Ring hung,
action: reset
drm/i915: Resetting chip after gpu hang


I am capable of testing kernel and userspace patches.

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