https://bugs.freedesktop.org/show_bug.cgi?id=61965
--- Comment #2 from Mike Lothian mike@fireburn.co.uk --- I'm going to hazzard a guess that either 4d53233a36fdda567cd4d080e27e1ee4b669ddd1 and / or 2e928815c1886fe628ed54623aa98d0889cf5509 are most probably where the problem lies
I can't seem to CC Tejun Heo tj@kernel.org - am I reporting this bug to the right place?