These two fixes appear to be needed in 4.1-stable only:
commit 57ffc5ca679f499f4704fd9b6a372916f59930ee
Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Date: Thu Jun 18 12:32:49 2015 +0200
perf: Fix AUX buffer refcounting
commit ee9397a6fb9bc4e52677f5e33eed4abee0f515e6
Author: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Date: Mon Jul 27 00:31:08 2015 +0100
perf: Fix double-free of the AUX buffer
Ben.
--
Ben Hutchings
[W]e found...that it wasn't as easy to get programs right as we had thought.
... I realized that a large part of my life from then on was going to be spent
in finding mistakes in my own programs. - Maurice Wilkes, 1949
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