[Bug 102473] [BAT] igt at kms_frontbuffer_tracking@basic WARN_ON(fbc->active)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Nov 27 09:08:39 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=102473

--- Comment #10 from Marta Löfstedt <marta.lofstedt at intel.com> ---
(In reply to Jani Saarinen from comment #9)
> Marta: for 6e644626945c7c1a7f4d4f83b806b898297846d0
> From Ville:
> "That patch will simply cause more modesets. I think it exposes some
> pre-existing race conditions in the fbc enable/disable sequences.
> Chris had some patches, some of which didn't quite make sense, but the
> current code doesn't really make sense either."

Yes, this "race" thing is what I tried to communicate to przanoni at gmail.com
previously, and also why I did some experiments that didn't pan out. Is there
some copying going on with the fbc struct somewhere?

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