[Bug 101623] [IGT][BDW] kms_frontbuffer_tracking at fbc-*draw* has inconsistent results - FBC disabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101623

Rodrigo Vivi <rodrigo.vivi at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bugs at mblankhorst.nl,
                   |                            |jani.nikula at intel.com,
                   |                            |jani.saarinen at intel.com,
                   |                            |manasi.d.navare at intel.com,
                   |                            |rodrigo.vivi at gmail.com

--- Comment #34 from Rodrigo Vivi <rodrigo.vivi at gmail.com> ---
I also see this on shard-glkb with drm-intel-fixes.

Particularly it got worst with latest round with fixes on top of 4.14-rc6:

dc35b1129cc3 drm/i915: Hold rcu_read_lock when iterating over the radixtree
(vma idr)
23e873389d84 drm/i915: Hold rcu_read_lock when iterating over the radixtree
(objects)
7c838e2a9be5 drm/i915/edp: read edp display control registers unconditionally
8777b927b92c drm/i915: Do not rely on wm preservation for ILK watermarks
713946d16f45 drm/i915: Cancel the modeset retry work during modeset cleanup

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