Comment # 3 on bug 73083 from Dave Gilbert

Hi Alex,
  I think this is surviving for me OK, but if I understand you correctly this
is a workaround rather than a fix, since it's now doing copies that are
unnecessary for small images that do fit?

  Also, Francois Guerraz posted a backtrace that looks very similar on his
HD6750M in the evergreen code, but it reads to me as the same problem in the
Evergreen matching code:
https://bugzilla.redhat.com/show_bug.cgi?id=955617#c31