[Bug 106421] New: i915 hangs, then rendering fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106421

            Bug ID: 106421
           Summary: i915 hangs, then rendering fails
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: pistenflitzer at alpenjodel.de
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 139395
  --> https://bugs.freedesktop.org/attachment.cgi?id=139395&action=edit
/sys/class/drm/card0/error

I just started "git gui", when the notebook froze for a few seconds.
Afterwards, I could access most running applications, but chrome only rendered
the tab bar, and plasmashell would not start again.

I had only just updated the KDE libraries from 5.44.0 to 5.45.0 when this
happened. Not sure if this is related.

from dmesg:
[ 6202.821326] [drm] GPU HANG: ecode 4:0:0xefdcfff7, in chrome [2583], reason:
Hang on rcs0, action: reset
[ 6202.821327] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 6202.821328] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 6202.821329] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 6202.821329] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 6202.821330] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 6202.821370] i915 0000:00:02.0: Resetting chip after gpu hang
[ 6207.968047] i915 0000:00:02.0: i915_reset_device timed out, cancelling all
in-flight rendering.
[ 6212.288101] i915 0000:00:02.0: Failed to reset chip

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