[Bug 72917] [HSW] kms_flip hangs the machine

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=72917

--- Comment #14 from Paulo Zanoni <przanoni at gmail.com> ---
(In reply to comment #13)
> Ok, I reran some tests, and let me clarify:
> 
> 
> With plain -nightly, the flip-vs-panning-vs-hang test *fails*, leaves a lot
> of error messages on dmesg, and occasionally some ugly WARNs at
> drivers/gpu/drm/i915/i915_gem.c:3899. I was testing by running the whole
> kms_flip program, not a single test. If I run flip-vs-panning-vs-hang as a
> single test, it still FAILs.
> 
> 
> So I reverted 4b5d8f2ce384d17d56ea7e83bbfbb93e5aff4740, 

I wanted to say I reverted bfca05275a594920ad5111f5a23ec6fadc0d0780.

Also, I can confirm that if I run kms_flip on drm-intel-next-queued, these
problems don't happen. But you need 6 patches on top of intel-gpu-tools if you
want the test suite to finish (patches on the mailing list).

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