https://bugs.freedesktop.org/show_bug.cgi?id=100567

            Bug ID: 100567
           Summary: Nouveau system freeze fifo: SCHED_ERROR 0a
                    [CTXSW_TIMEOUT]
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: jeremy.booker-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

Created attachment 130676
  --> https://bugs.freedesktop.org/attachment.cgi?id=130676&action=edit
journalctl output for last boot to crash

I'm experiencing a random, but consistent hard-free (cannot switch virtual
terminals) running an nVidia card with three monitors under Fedora 25. Recent
kernel and driver updates have seemed to make this freeze much more frequent
(5-6 times in two work days).

Journalctl -b -1 output is attached. Most relevant lines are:

kernel: nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
kernel: nouveau 0000:01:00.0: fifo: gr engine fault on channel 12,
recovering...
kernel: [drm:drm_atomic_helper_swap_state [drm_kms_helper]] *ERROR*
[CRTC:37:head-0] hw_done timed out
kernel: [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR*
[CRTC:37:head-0] hw_done timed out
kernel: [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR*
[CRTC:37:head-0] flip_done timed out

A possibly related bug is #96562, but it is old and hasn't received any
attention, so I'm opening a new one.

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