| 1 | #!/usr/bin/env python3 |
| 2 | # group: rw quick |
| 3 | # |
| 4 | # Copyright (C) 2017 Red Hat, Inc. |
| 5 | # |
| 6 | # This program is free software; you can redistribute it and/or modify |
| 7 | # it under the terms of the GNU General Public License as published by |
| 8 | # the Free Software Foundation; either version 2 of the License, or |
| 9 | # (at your option) any later version. |
| 10 | # |
| 11 | # This program is distributed in the hope that it will be useful, |
| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | # GNU General Public License for more details. |
| 15 | # |
| 16 | # You should have received a copy of the GNU General Public License |
| 17 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 18 | # |
| 19 | # Creator/Owner: Stefan Hajnoczi <stefanha@redhat.com> |
| 20 | # |
| 21 | # Check that QMP 'transaction' blockdev-snapshot-sync with multiple drives on a |
| 22 | # single IOThread completes successfully. This particular command triggered a |
| 23 | # hang due to recursive AioContext locking and BDRV_POLL_WHILE(). Protect |
| 24 | # against regressions even though the AioContext lock no longer exists. |
| 25 | |
| 26 | import iotests |
| 27 | |
| 28 | iotests.script_initialize(supported_fmts=['qcow2'], |
| 29 | supported_platforms=['linux']) |
| 30 | |
| 31 | with iotests.FilePath('disk0.img') as disk0_img_path, \ |
| 32 | iotests.FilePath('disk1.img') as disk1_img_path, \ |
| 33 | iotests.FilePath('disk0-snap.img') as disk0_snap_img_path, \ |
| 34 | iotests.FilePath('disk1-snap.img') as disk1_snap_img_path, \ |
| 35 | iotests.VM() as vm: |
| 36 | |
| 37 | img_size = '10M' |
| 38 | iotests.qemu_img_create('-f', iotests.imgfmt, disk0_img_path, img_size) |
| 39 | iotests.qemu_img_create('-f', iotests.imgfmt, disk1_img_path, img_size) |
| 40 | |
| 41 | iotests.log('Launching VM...') |
| 42 | vm.launch() |
| 43 | |
| 44 | iotests.log('Adding IOThread...') |
| 45 | iotests.log(vm.qmp('object-add', |
| 46 | qom_type='iothread', |
| 47 | id='iothread0')) |
| 48 | |
| 49 | iotests.log('Adding blockdevs...') |
| 50 | iotests.log(vm.qmp('blockdev-add', |
| 51 | driver=iotests.imgfmt, |
| 52 | node_name='disk0', |
| 53 | file={ |
| 54 | 'driver': 'file', |
| 55 | 'filename': disk0_img_path, |
| 56 | })) |
| 57 | iotests.log(vm.qmp('blockdev-add', |
| 58 | driver=iotests.imgfmt, |
| 59 | node_name='disk1', |
| 60 | file={ |
| 61 | 'driver': 'file', |
| 62 | 'filename': disk1_img_path, |
| 63 | })) |
| 64 | |
| 65 | iotests.log('Setting iothread...') |
| 66 | iotests.log(vm.qmp('x-blockdev-set-iothread', |
| 67 | node_name='disk0', |
| 68 | iothread='iothread0')) |
| 69 | iotests.log(vm.qmp('x-blockdev-set-iothread', |
| 70 | node_name='disk1', |
| 71 | iothread='iothread0')) |
| 72 | |
| 73 | iotests.log('Creating external snapshots...') |
| 74 | iotests.log(vm.qmp( |
| 75 | 'transaction', |
| 76 | actions=[ |
| 77 | { |
| 78 | 'data': { |
| 79 | 'node-name': 'disk0', |
| 80 | 'snapshot-file': disk0_snap_img_path, |
| 81 | 'snapshot-node-name': 'disk0-snap', |
| 82 | 'mode': 'absolute-paths', |
| 83 | 'format': iotests.imgfmt, |
| 84 | }, |
| 85 | 'type': 'blockdev-snapshot-sync' |
| 86 | }, { |
| 87 | 'data': { |
| 88 | 'node-name': 'disk1', |
| 89 | 'snapshot-file': disk1_snap_img_path, |
| 90 | 'snapshot-node-name': 'disk1-snap', |
| 91 | 'mode': 'absolute-paths', |
| 92 | 'format': iotests.imgfmt |
| 93 | }, |
| 94 | 'type': 'blockdev-snapshot-sync' |
| 95 | } |
| 96 | ])) |