[Bug 87992] X crash because si_restrict_performance_levels_before_switch(?)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87992

--- Comment #2 from Öyvind Saether <oyvinds at everdot.org> ---
"[191856.414365] [drm:si_dpm_set_power_state] *ERROR*
si_restrict_performance_levels_before_switch failed" was the only interesting
line in dmesg and I had restarted X twice before I noticed it, so sorry (Gentoo
only keeps current and last log).

I changed to 3.19rc2 on the off-chance that it's dpm changes would solve this
and I have not yet got any crash or such error. I turned on and is running with
"options drm debug=0x06" now so I will be able to post more useful information
if/when this happens again.

I am using the same mesa version so if the problem lies therein then it may
show up again.

I guess it would be best to ignore this bug and let it sit here for a few
weeks. I (or someone else) will need to get another X crash with this error to
make any progress. If no such crash happens with 3.19rc2 (or what later version
I may switch to) within weeks then perhaps it is solved.

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