This implements a testcase for pxe-test using the vhost-user interface. Spawn a
vhost-user-bridge process and connect it to the qemu process.

To make the testcase work we need to apply a few patches before the actual testcase:
- Patch 1 disables debug output of vhost-user-bridge
- Patch 2 fixes passing a file descriptor to -netdev.  This was broken since the
  mcast option was introduced. 
- Patch 3 makes sure we stop processing vhost-user messages when recvmsg returns 0.

regards,
Jens

Jens Freimann (4):
  tests/vhost-user-bridge: disable debug output by default
  net: fix -netdev socket,fd= for UDP sockets
  libvhost-user: quit when no more data received
  tests/pxe-test: add testcase using vhost-user-bridge

 contrib/libvhost-user/libvhost-user.c |   4 +-
 net/socket.c                          |  37 +++++----
 tests/Makefile.include                |   4 +-
 tests/pxe-test.c                      | 140 +++++++++++++++++++++++++++++++++-
 tests/vhost-user-bridge.c             |   2 +-
 5 files changed, 164 insertions(+), 23 deletions(-)

-- 
2.9.4

Hi,

This series failed automatic build test. Please find the testing commands and
their output below. If you have docker installed, you can probably reproduce it
locally.

Type: series
Subject: [Qemu-devel] [PATCH 0/4] tests/pxe-test: add testcase using vhost-user-bridge
Message-id: 20170721095553.10717-1-jfreimann@redhat.com

=== TEST SCRIPT BEGIN ===
#!/bin/bash
set -e
git submodule update --init dtc
# Let docker tests dump environment info
export SHOW_ENV=1
export J=8
time make docker-test-quick@centos6
time make docker-test-build@min-glib
time make docker-test-mingw@fedora
=== TEST SCRIPT END ===

Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
Switched to a new branch 'test'
4e60aea tests/pxe-test: add testcase using vhost-user-bridge
21e584d libvhost-user: quit when no more data received
bc0c757 net: fix -netdev socket, fd= for UDP sockets
22e423d tests/vhost-user-bridge: disable debug output by default

=== OUTPUT BEGIN ===
Submodule 'dtc' (git://git.qemu-project.org/dtc.git) registered for path 'dtc'
Cloning into '/var/tmp/patchew-tester-tmp-pwrch0lm/src/dtc'...
Submodule path 'dtc': checked out '558cd81bdd432769b59bff01240c44f82cfb1a9d'
  BUILD   centos6
make[1]: Entering directory '/var/tmp/patchew-tester-tmp-pwrch0lm/src'
  ARCHIVE qemu.tgz
  ARCHIVE dtc.tgz
  COPY    RUNNER
    RUN test-quick in qemu:centos6 
/usr/bin/docker-current: Error response from daemon: containerd: container did not start before the specified timeout.
Traceback (most recent call last):
  File "./tests/docker/docker.py", line 382, in <module>
    sys.exit(main())
  File "./tests/docker/docker.py", line 379, in main
    return args.cmdobj.run(args, argv)
  File "./tests/docker/docker.py", line 237, in run
    return Docker().run(argv, args.keep, quiet=args.quiet)
  File "./tests/docker/docker.py", line 205, in run
    quiet=quiet)
  File "./tests/docker/docker.py", line 123, in _do_check
    return subprocess.check_call(self._command + cmd, **kwargs)
  File "/usr/lib64/python2.7/subprocess.py", line 186, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['docker', 'run', '--label', 'com.qemu.instance.uuid=b0088d2a72ca11e794e1525400c803e1', '-u', '0', '-t', '--rm', '--net=none', '-e', 'TARGET_LIST=', '-e', 'EXTRA_CONFIGURE_OPTS=', '-e', 'V=', '-e', 'J=8', '-e', 'DEBUG=', '-e', 'SHOW_ENV=1', '-e', 'CCACHE_DIR=/var/tmp/ccache', '-v', '/var/tmp/patchew-tester-tmp-pwrch0lm/src/docker-src.2017-07-27-08.54.08.1913:/var/tmp/qemu:z,ro', '-v', '/root/.cache/qemu-docker-ccache:/var/tmp/ccache:z', 'qemu:centos6', '/var/tmp/qemu/run', 'test-quick']' returned non-zero exit status 125
tests/docker/Makefile.include:136: recipe for target 'docker-run' failed
make[1]: *** [docker-run] Error 1
make[1]: Leaving directory '/var/tmp/patchew-tester-tmp-pwrch0lm/src'
tests/docker/Makefile.include:168: recipe for target 'docker-run-test-quick@centos6' failed
make: *** [docker-run-test-quick@centos6] Error 2
=== OUTPUT END ===

Test command exited with code: 2


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