[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 #19 from lu hua <huax.lu at intel.com> ---
(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

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