[Bug 99093] [PNV][BLK][ELK][BXT/SKL/KBL/BDW/BSW/GLK][regression] N450 and D510 machines get stuck in igt at gem_ringfill@basic-default-hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99093

--- Comment #20 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to Marta Löfstedt from comment #17)
> I either still hang on 3rdf subtest:
> extended-pageflip-modeset-hang-oldfb-default-A

extended-pageflip-modeset-hang-* exhibit multiple bugs, once of which is a
deadlock prevented (not fixed!) by the wedging. However, prior to hitting the
deadlock you encounter many use-after-frees in the atomic modesetting.

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