[PATCH 0/4] Fix crash due to NBD export leak

[Vladimir Sementsov-Ogievskiy]

Hi all!

We've faced crash bug, which is reproducing on master branch as well.
The case is described in 03, where fix is suggested.
New iotest in 04 crashes without that fix.

Vladimir Sementsov-Ogievskiy (4):
  iotests: QemuIoInteractive: use qemu_io_args_no_fmt
  iotests.py: QemuIoInteractive: print output on failure
  nbd: make client_close synchronous
  iotests: test shutdown when bitmap is exported through NBD

 nbd/server.c                  |  3 ++
 tests/qemu-iotests/299        | 65 +++++++++++++++++++++++++++++++++++
 tests/qemu-iotests/299.out    | 10 ++++++
 tests/qemu-iotests/group      |  1 +
 tests/qemu-iotests/iotests.py | 15 +++++---
 5 files changed, 90 insertions(+), 4 deletions(-)
 create mode 100644 tests/qemu-iotests/299
 create mode 100644 tests/qemu-iotests/299.out

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2.21.0