[Bug 87099] [HSW MST] Warning...drm_dp_mst_get_validated_mstb_ref_locked, possible circular locking dependency detected

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87099

--- Comment #2 from Daniel Martin <consume.noise at gmail.com> ---
Created attachment 110607
  --> https://bugs.freedesktop.org/attachment.cgi?id=110607&action=edit
dmesg drm-intel-nightly 3.18.0-00343-gfc7bddc + drm/dp-mst: Remove branches
before dropping the reference

With the patch from http://patchwork.freedesktop.org/patch/38434/ I can't see
the "INFO: possible circular locking dependency detected" anymore.
Though, backtraces as in bug #87100 show up multiple times and it kills the VGA
output too.

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