[Bug 83661] New: GPU stuck on render ring / slow desktop

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83661

          Priority: medium
            Bug ID: 83661
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: GPU stuck on render ring / slow desktop
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: freedesktop-bugzilla at camperquake.de
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Intel
           Product: DRI

Created attachment 105969
  --> https://bugs.freedesktop.org/attachment.cgi?id=105969&action=edit
/sys/class/drm/card0/error dump

The below messages are seen in dmesg:

[drm] stuck on blitter ring
[drm] GPU HANG: ecode 0:0xf4e9fffe, in Xorg [3309], 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_context_is_banned] *ERROR* gpu hanging too fast, banning!
[drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off

After this the desktop still runs, but is very sluggish. Newly opened menus and
windows show as black boxes but can still be acted upon.

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