[Bug 67813] [HSW bisected]igt/module_reload causes [drm:hsw_unclaimed_reg_check] *ERROR* Unclaimed write to 44004 and system hang with headless, with power well disabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67813

--- Comment #20 from Paulo Zanoni <przanoni at gmail.com> ---
(In reply to comment #19)
> (In reply to comment #18)
> > Hi
> > 
> > I believe this patch series fixes the problem:
> > http://lists.freedesktop.org/archives/intel-gfx/2013-September/033984.html
> > 
> > Can you please test?
> > 
> > Thanks,
> > Paulo
> 
> Test these patches
> output:
> ERROR: Module i915 is in use
> WARNING: i915.ko still loaded!
> module successfully loaded again

Are you sure you did the test correctly? Did you kill X and all the other DRM
clients when doing this? If you repeat the test with i915.disable_power_well=0
do you also get the same problem?

All conditions necessary to run the other intel-gpu-tools tests apply when
running module_reload.

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