There are a couple of tests that fail (on my machine) from time to
time (and by that I mean that recently I've rarely ever had a test run
with both 083 and 136 working on first try).
This series should fix most (at least the issues I am aware of).

Notes:
- 083 might have another issue, but if so it occurs extremely rarely and
  so I was unable to debug it.

- 129 is flaky, too, because it tries to use block jobs with BB
  throttling -- however, block jobs ignore that these days.  Making it
  use a throttle filter node will require quite a bit of work.  See
  http://lists.nongnu.org/archive/html/qemu-block/2017-11/msg00111.html
  for more.

- 194 sometimes hangs because the source VM fails to drain its drive.
  This is probably not an issue with the test, but actually an issue in
  qemu.  See
  http://lists.nongnu.org/archive/html/qemu-block/2017-11/msg00256.html
  for more.


v2:
 - Spelling fixes [Eric]
 - Contract grep | sed to a single sed in 083 [Eric]


git-backport-diff against v1:

Key:
[----] : patches are identical
[####] : number of functional differences between upstream/downstream patch
[down] : patch is downstream-only
The flags [FC] indicate (F)unctional and (C)ontextual differences, respectively

001/5:[----] [--] 'iotests: Make 030 less flaky'
002/5:[----] [--] 'iotests: Add missing 'blkdebug::' in 040'
003/5:[----] [--] 'iotests: Make 055 less flaky'
004/5:[0003] [FC] 'iotests: Make 083 less flaky'
005/5:[----] [--] 'iotests: Make 136 less flaky'


Max Reitz (5):
  iotests: Make 030 less flaky
  iotests: Add missing 'blkdebug::' in 040
  iotests: Make 055 less flaky
  iotests: Make 083 less flaky
  iotests: Make 136 less flaky

 tests/qemu-iotests/030 |  8 ++++++--
 tests/qemu-iotests/040 |  2 +-
 tests/qemu-iotests/055 | 25 ++++++++++++++++---------
 tests/qemu-iotests/083 |  4 +++-
 tests/qemu-iotests/136 | 14 +++++++++++++-
 5 files changed, 39 insertions(+), 14 deletions(-)

-- 
2.13.6


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