| 1 | #!/usr/bin/env python3 |
| 2 | # group: quick |
| 3 | # |
| 4 | # Simple mirror test |
| 5 | # |
| 6 | # Copyright (c) 2018 Virtuozzo International GmbH. All rights reserved. |
| 7 | # |
| 8 | # This program is free software; you can redistribute it and/or modify |
| 9 | # it under the terms of the GNU General Public License as published by |
| 10 | # the Free Software Foundation; either version 2 of the License, or |
| 11 | # (at your option) any later version. |
| 12 | # |
| 13 | # This program is distributed in the hope that it will be useful, |
| 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | # GNU General Public License for more details. |
| 17 | # |
| 18 | # You should have received a copy of the GNU General Public License |
| 19 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 20 | # |
| 21 | |
| 22 | import sys |
| 23 | import os |
| 24 | import iotests |
| 25 | from iotests import qemu_img_create, qemu_io, file_path, log |
| 26 | |
| 27 | from qemu.machine import QEMUMachine |
| 28 | |
| 29 | iotests.script_initialize(supported_fmts=['qcow2']) |
| 30 | |
| 31 | # Note: |
| 32 | # This test was added to check that mirror dead-lock was fixed (see previous |
| 33 | # commit before this test addition). |
| 34 | # And it didn't reproduce if at least one of the following: |
| 35 | # 1. use small image size |
| 36 | # 2. use raw format (not qcow2) |
| 37 | # 3. drop kvm and use iotests.VM() (maybe, because of qtest) (however, it still |
| 38 | # reproduces, if just drop kvm, but gdb failed to produce full backtraces |
| 39 | # for me) |
| 40 | # 4. add iothread |
| 41 | |
| 42 | size = 1 * 1024 * 1024 * 1024 |
| 43 | |
| 44 | disk = file_path('disk') |
| 45 | |
| 46 | # prepare source image |
| 47 | qemu_img_create('-f', iotests.imgfmt, '-o', 'preallocation=metadata', disk, |
| 48 | str(size)) |
| 49 | |
| 50 | vm = QEMUMachine(iotests.qemu_prog) |
| 51 | vm.add_args('-accel', 'kvm', '-accel', 'tcg') |
| 52 | if iotests.qemu_default_machine == 's390-ccw-virtio': |
| 53 | vm.add_args('-no-shutdown') |
| 54 | vm.add_args('-drive', 'id=src,file=' + disk) |
| 55 | vm.launch() |
| 56 | |
| 57 | log(vm.qmp('object-add', qom_type='throttle-group', id='tg0', |
| 58 | limits={'bps-total': size})) |
| 59 | |
| 60 | log(vm.qmp('blockdev-add', |
| 61 | **{ 'node-name': 'target', |
| 62 | 'driver': 'throttle', |
| 63 | 'throttle-group': 'tg0', |
| 64 | 'file': { |
| 65 | 'driver': 'null-co', |
| 66 | 'size': size |
| 67 | } })) |
| 68 | |
| 69 | log(vm.qmp('blockdev-mirror', device='src', target='target', sync='full')) |
| 70 | |
| 71 | try: |
| 72 | vm.event_wait('BLOCK_JOB_READY', timeout=10.0) |
| 73 | except: |
| 74 | vm.shutdown() |
| 75 | raise |
| 76 | |
| 77 | vm.shutdown() |