[Bug 88012] [bisected BYT] complete freeze after: 31685c258e0b0ad6aa486c5ec001382cf8a64212

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88012

--- Comment #17 from Juergen Froehler <openelec at froehler-moreno.de> ---
(In reply to Ben Widawsky from comment #16)
> (In reply to Juergen Froehler from comment #15)
> 
> > Well I will do another test now with the "regular" Kernel 3.17.7 and
> > governor=powersave just to see if it freeze or also run more "stable".
> 
> Can you also confirm you are unable to hit this without GPU, and just CPU
> stress tests (I do not have any recommendations for which test)? I see a a
> similar sounding problem, but it is very intermittent for me.

What I can say and what I have most intensive tested on the generic Kernels
(3.13.0 > 3.17.7 and also on the ickle Kernel 3.19.rc2 was to disable HW
Acceleration (VAAPI) in Kodi and running movies over several hours without a
freeze/hung. The hung happens only when HW Acceleration in Kodi is enabled.

In the meantime I was running 3.17.7-generic with governor=powersave for over
an hour now without a freeze, but the logfile runs quickly full with the
aggresiv drm:valleyview_set_rps but no freeze yet... will let it run some time
more

I did also some days ago a long memtest run over 6 PASS 0 Errors which took
over ~8 hours to be sure there is no HW issue.

Well for a CPU stress test, I will look around if there is something I can use
without killing it

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