[Bug 99057] non-recoverable hang/freeze following WARNING: CPU: 3 PID: 783 at drivers/gpu/drm/i915/intel_display.c:14189 intel_atomic_commit_tail+0xfd0/0xff0 [i915]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99057

--- Comment #13 from bugzilla at colorremedies.com ---
Created attachment 128456
  --> https://bugs.freedesktop.org/attachment.cgi?id=128456&action=edit
dmesg debug

$ cat /proc/cmdline 
BOOT_IMAGE=/vmlinuz-4.9.0-1.fc26.x86_64
root=UUID=c45caf39-a048-4c44-90c9-535dc8003c71 ro rootflags=subvol=root
elevator=noop no_console_suspend ignore_loglevel i915.enable_rc6=0
drm.debug=0xe log_buf_len=1M i915.enable_guc_loading=-1
i915.enable_guc_submission=-1 i915.guc_log_level=0

No crash yet, just dmesg following about an hour with the above command line.
Both firmwares appear to be loaded now.

If enable_rc6=0 is possibly inhibiting the problem, I'd rather run without it
so the problem happens and hopefully the problem gets logged.

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