[Bug 81990] New: [drm] GPU HANG: ecode 0:0xf4e9fffe, in Xorg [772], reason: Ring hung, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81990

          Priority: medium
            Bug ID: 81990
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [drm] GPU HANG: ecode 0:0xf4e9fffe, in Xorg [772],
                    reason: Ring hung, action: reset
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: samuel at sieb.net
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Occasionally the GPU hangs under normal usage.
I don't know which version to specify since there are so many version among the
xorg packages, possibly xorg-x11-server-Xorg-1.14.4-11.fc20.x86_64
Here is the relevant section of the journal:

Jul 31 21:29:48 worklap gnome-session[1360]:
[3373:3373:0731/212948:ERROR:desktop_window_tree_host_x11.cc(1330)] Not
implemented reached in void
views::DesktopWindowTreeHostX11::MapWindow(ui::WindowShowState)
Jul 31 21:29:51 worklap gnome-session[1360]:
[3373:3403:0731/212951:ERROR:raw_channel_posix.cc(139)] recvmsg: Connection
reset by peer
Jul 31 21:29:51 worklap gnome-session[1360]:
[3373:3403:0731/212951:ERROR:channel.cc(297)] RawChannel fatal error (type 1)
Jul 31 21:30:08 worklap gnome-session[1360]:
[3373:3403:0731/213008:ERROR:raw_channel_posix.cc(139)] recvmsg: Connection
reset by peer
Jul 31 21:30:08 worklap gnome-session[1360]:
[3373:3403:0731/213008:ERROR:channel.cc(297)] RawChannel fatal error (type 1)
Jul 31 21:30:39 worklap kernel: [drm] stuck on render ring
Jul 31 21:30:39 worklap kernel: [drm] stuck on blitter ring
Jul 31 21:30:39 worklap kernel: [drm] GPU HANG: ecode 0:0xf4e9fffe, in Xorg
[772], reason: Ring hung, action: reset
Jul 31 21:30:39 worklap kernel: [drm] GPU hangs can indicate a bug anywhere in
the entire gfx stack, including userspace.
Jul 31 21:30:39 worklap kernel: [drm] Please file a _new_ bug report on
bugs.freedesktop.org against DRI -> DRM/Intel
Jul 31 21:30:39 worklap kernel: [drm] drm/i915 developers can then reassign to
the right component if it's not a kernel issue.
Jul 31 21:30:39 worklap kernel: [drm] The gpu crash dump is required to analyze
gpu hangs, so please always attach it.
Jul 31 21:30:39 worklap kernel: [drm] GPU crash dump saved to
/sys/class/drm/card0/error
Jul 31 21:30:39 worklap kernel: [drm:i915_context_is_banned] *ERROR* gpu
hanging too fast, banning!
Jul 31 21:30:41 worklap kernel: [drm] Enabling RC6 states: RC6 on, RC6p off,
RC6pp off

I will attach the crash dump after I reboot, since X and Gnome are rather
messed up right now.

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