tests/qemu-iotests/208

   1 #!/usr/bin/env python
   2 #
   3 # Copyright (C) 2018 Red Hat, Inc.
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 #
  18 # Creator/Owner: Stefan Hajnoczi <stefanha@redhat.com>
  19 #
  20 # Check that the runtime NBD server does not crash when stopped after
  21 # blockdev-snapshot-sync.
  22
  23 import iotests
  24
  25 iotests.verify_image_format(supported_fmts=['generic'])
  26
  27 with iotests.FilePath('disk.img') as disk_img_path, \
  28      iotests.FilePath('disk-snapshot.img') as disk_snapshot_img_path, \
  29      iotests.FilePath('nbd.sock') as nbd_sock_path, \
  30      iotests.VM() as vm:
  31
  32     img_size = '10M'
  33     iotests.qemu_img_create('-f', iotests.imgfmt, disk_img_path, img_size)
  34
  35     iotests.log('Launching VM...')
  36     (vm.add_drive(disk_img_path, 'node-name=drive0-node', interface='none')
  37        .launch())
  38
  39     iotests.log('Starting NBD server...')
  40     iotests.log(vm.qmp('nbd-server-start', addr={
  41             "type": "unix",
  42             "data": {
  43                 "path": nbd_sock_path,
  44             }
  45         }))
  46
  47     iotests.log('Adding NBD export...')
  48     iotests.log(vm.qmp('nbd-server-add', device='drive0-node', writable=True))
  49
  50     iotests.log('Creating external snapshot...')
  51     iotests.log(vm.qmp('blockdev-snapshot-sync',
  52         node_name='drive0-node',
  53         snapshot_node_name='drive0-snapshot-node',
  54         snapshot_file=disk_snapshot_img_path))
  55
  56     iotests.log('Stopping NBD server...')
  57     iotests.log(vm.qmp('nbd-server-stop'))