(In reply to comment #139)
Oh that's interesting. We might be able to find a register to prevent rc6
whilst waiting on a semaphore. (Hmm, too bad it isn't ivb or we could just
frob forcewake directly.)
Happy to test patches. I'm updating to 3.13.9 tonight. I could add
something on top if you
My stuck ring faults are completely gone with i915.i915_enable_rc6=0.
Fan stays on a bit more (subjectively) seems to be the only side effect.
HP Pavilion dv6 (Sandybridge).
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My stuck ring faults are completely gone with i915.i915_enable_rc6=0.
Fan stays on a bit more (subjectively) seems to be the only side effect.
HP Pavilion dv6 (Sandybridge).
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
(In reply to comment #139)
Oh that's interesting. We might be able to find a register to prevent rc6
whilst waiting on a semaphore. (Hmm, too bad it isn't ivb or we could just
frob forcewake directly.)
Happy to test patches. I'm updating to 3.13.9 tonight. I could add
something on top if you
For what its worth, running 3.13.7 greatly mitigates this bug, to where
the dead time is barely noticeable. It happened three times in short
order here and I didn't notice any of them:
[ 4562.551141] [drm:ring_stuck] *ERROR* Kicking stuck semaphore on render ring
[ 4582.530028] [drm:ring_stuck]
For what its worth, running 3.13.7 greatly mitigates this bug, to where
the dead time is barely noticeable. It happened three times in short
order here and I didn't notice any of them:
[ 4562.551141] [drm:ring_stuck] *ERROR* Kicking stuck semaphore on render ring
[ 4582.530028] [drm:ring_stuck]
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