| #!/usr/bin/env python3 | |
| # group: rw auto | |
| # | |
| # Tests for image block commit. | |
| # | |
| # Copyright (C) 2012 IBM, Corp. | |
| # Copyright (C) 2012 Red Hat, Inc. | |
| # | |
| # This program is free software; you can redistribute it and/or modify | |
| # it under the terms of the GNU General Public License as published by | |
| # the Free Software Foundation; either version 2 of the License, or | |
| # (at your option) any later version. | |
| # | |
| # This program is distributed in the hope that it will be useful, | |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| # GNU General Public License for more details. | |
| # | |
| # You should have received a copy of the GNU General Public License | |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| # | |
| # Test for live block commit | |
| # Derived from Image Streaming Test 030 | |
| import time | |
| import os | |
| import iotests | |
| from iotests import qemu_img, qemu_io | |
| import struct | |
| import errno | |
| backing_img = os.path.join(iotests.test_dir, 'backing.img') | |
| mid_img = os.path.join(iotests.test_dir, 'mid.img') | |
| test_img = os.path.join(iotests.test_dir, 'test.img') | |
| class ImageCommitTestCase(iotests.QMPTestCase): | |
| '''Abstract base class for image commit test cases''' | |
| def wait_for_complete(self, need_ready=False): | |
| completed = False | |
| ready = False | |
| while not completed: | |
| for event in self.vm.get_qmp_events(wait=True): | |
| if event['event'] == 'BLOCK_JOB_COMPLETED': | |
| self.assert_qmp_absent(event, 'data/error') | |
| self.assert_qmp(event, 'data/type', 'commit') | |
| self.assert_qmp(event, 'data/device', 'drive0') | |
| self.assert_qmp(event, 'data/offset', event['data']['len']) | |
| if need_ready: | |
| self.assertTrue(ready, "Expecting BLOCK_JOB_COMPLETED event") | |
| completed = True | |
| elif event['event'] == 'BLOCK_JOB_READY': | |
| ready = True | |
| self.assert_qmp(event, 'data/type', 'commit') | |
| self.assert_qmp(event, 'data/device', 'drive0') | |
| self.vm.qmp('block-job-complete', device='drive0') | |
| self.assert_no_active_block_jobs() | |
| self.vm.shutdown() | |
| def run_commit_test(self, top, base, need_ready=False, node_names=False): | |
| self.assert_no_active_block_jobs() | |
| if node_names: | |
| self.vm.cmd('block-commit', device='drive0', top_node=top, base_node=base) | |
| else: | |
| self.vm.cmd('block-commit', device='drive0', top=top, base=base) | |
| self.wait_for_complete(need_ready) | |
| def run_default_commit_test(self): | |
| self.assert_no_active_block_jobs() | |
| self.vm.cmd('block-commit', device='drive0') | |
| self.wait_for_complete() | |
| class TestSingleDrive(ImageCommitTestCase): | |
| # Need some space after the copied data so that throttling is effective in | |
| # tests that use it rather than just completing the job immediately | |
| image_len = 2 * 1024 * 1024 | |
| test_len = 1 * 1024 * 256 | |
| def setUp(self): | |
| iotests.create_image(backing_img, self.image_len) | |
| qemu_img('create', '-f', iotests.imgfmt, | |
| '-o', 'backing_file=%s' % backing_img, '-F', 'raw', mid_img) | |
| qemu_img('create', '-f', iotests.imgfmt, | |
| '-o', 'backing_file=%s' % mid_img, | |
| '-F', iotests.imgfmt, test_img) | |
| if self.image_len: | |
| qemu_io('-f', 'raw', '-c', 'write -P 0xab 0 524288', backing_img) | |
| qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xef 524288 524288', | |
| mid_img) | |
| self.vm = iotests.VM().add_drive(test_img, "node-name=top,backing.node-name=mid,backing.backing.node-name=base", interface="none") | |
| self.vm.add_device('virtio-scsi') | |
| self.vm.add_device("scsi-hd,id=scsi0,drive=drive0") | |
| self.vm.launch() | |
| def tearDown(self): | |
| self.vm.shutdown() | |
| os.remove(test_img) | |
| os.remove(mid_img) | |
| os.remove(backing_img) | |
| def test_commit(self): | |
| self.run_commit_test(mid_img, backing_img) | |
| if not self.image_len: | |
| return | |
| qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', backing_img) | |
| qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', backing_img) | |
| def test_commit_node(self): | |
| self.run_commit_test("mid", "base", node_names=True) | |
| if not self.image_len: | |
| return | |
| qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', backing_img) | |
| qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', backing_img) | |
| @iotests.skip_if_unsupported(['throttle']) | |
| def test_commit_with_filter_and_quit(self): | |
| self.vm.cmd('object-add', qom_type='throttle-group', id='tg') | |
| # Add a filter outside of the backing chain | |
| self.vm.cmd('blockdev-add', driver='throttle', node_name='filter', throttle_group='tg', file='mid') | |
| self.vm.cmd('block-commit', device='drive0') | |
| # Quit immediately, thus forcing a simultaneous cancel of the | |
| # block job and a bdrv_drain_all() | |
| self.vm.cmd('quit') | |
| # Same as above, but this time we add the filter after starting the job | |
| @iotests.skip_if_unsupported(['throttle']) | |
| def test_commit_plus_filter_and_quit(self): | |
| self.vm.cmd('object-add', qom_type='throttle-group', id='tg') | |
| self.vm.cmd('block-commit', device='drive0') | |
| # Add a filter outside of the backing chain | |
| self.vm.cmd('blockdev-add', driver='throttle', node_name='filter', throttle_group='tg', file='mid') | |
| # Quit immediately, thus forcing a simultaneous cancel of the | |
| # block job and a bdrv_drain_all() | |
| self.vm.cmd('quit') | |
| def test_device_not_found(self): | |
| result = self.vm.qmp('block-commit', device='nonexistent', top='%s' % mid_img) | |
| self.assert_qmp(result, 'error/class', 'DeviceNotFound') | |
| def test_top_same_base(self): | |
| self.assert_no_active_block_jobs() | |
| result = self.vm.qmp('block-commit', device='drive0', top='%s' % backing_img, base='%s' % backing_img) | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', "Can't find '%s' in the backing chain" % backing_img) | |
| def test_top_invalid(self): | |
| self.assert_no_active_block_jobs() | |
| result = self.vm.qmp('block-commit', device='drive0', top='badfile', base='%s' % backing_img) | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', 'Top image file badfile not found') | |
| def test_base_invalid(self): | |
| self.assert_no_active_block_jobs() | |
| result = self.vm.qmp('block-commit', device='drive0', top='%s' % mid_img, base='badfile') | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', "Can't find 'badfile' in the backing chain") | |
| def test_top_node_invalid(self): | |
| self.assert_no_active_block_jobs() | |
| result = self.vm.qmp('block-commit', device='drive0', top_node='badfile', base_node='base') | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', "Cannot find device='' nor node-name='badfile'") | |
| def test_base_node_invalid(self): | |
| self.assert_no_active_block_jobs() | |
| result = self.vm.qmp('block-commit', device='drive0', top_node='mid', base_node='badfile') | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', "Cannot find device='' nor node-name='badfile'") | |
| def test_top_path_and_node(self): | |
| self.assert_no_active_block_jobs() | |
| result = self.vm.qmp('block-commit', device='drive0', top_node='mid', base_node='base', top='%s' % mid_img) | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', "'top-node' and 'top' are mutually exclusive") | |
| def test_base_path_and_node(self): | |
| self.assert_no_active_block_jobs() | |
| result = self.vm.qmp('block-commit', device='drive0', top_node='mid', base_node='base', base='%s' % backing_img) | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', "'base-node' and 'base' are mutually exclusive") | |
| def test_top_is_active(self): | |
| self.run_commit_test(test_img, backing_img, need_ready=True) | |
| if not self.image_len: | |
| return | |
| qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', backing_img) | |
| qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', backing_img) | |
| def test_top_is_default_active(self): | |
| self.run_default_commit_test() | |
| if not self.image_len: | |
| return | |
| qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', backing_img) | |
| qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', backing_img) | |
| def test_top_and_base_reversed(self): | |
| self.assert_no_active_block_jobs() | |
| result = self.vm.qmp('block-commit', device='drive0', top='%s' % backing_img, base='%s' % mid_img) | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', "Can't find '%s' in the backing chain" % mid_img) | |
| def test_top_and_base_node_reversed(self): | |
| self.assert_no_active_block_jobs() | |
| result = self.vm.qmp('block-commit', device='drive0', top_node='base', base_node='top') | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', "'top' is not in this backing file chain") | |
| def test_top_node_in_wrong_chain(self): | |
| self.assert_no_active_block_jobs() | |
| self.vm.cmd('blockdev-add', driver='null-co', node_name='null') | |
| result = self.vm.qmp('block-commit', device='drive0', top_node='null', base_node='base') | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', "'null' is not in this backing file chain") | |
| # When the job is running on a BB that is automatically deleted on hot | |
| # unplug, the job is cancelled when the device disappears | |
| def test_hot_unplug(self): | |
| if self.image_len == 0: | |
| return | |
| self.assert_no_active_block_jobs() | |
| self.vm.cmd('block-commit', device='drive0', top=mid_img, | |
| base=backing_img, speed=(self.image_len // 4)) | |
| self.vm.cmd('device_del', id='scsi0') | |
| cancelled = False | |
| deleted = False | |
| while not cancelled or not deleted: | |
| for event in self.vm.get_qmp_events(wait=True): | |
| if event['event'] == 'DEVICE_DELETED': | |
| self.assert_qmp(event, 'data/device', 'scsi0') | |
| deleted = True | |
| elif event['event'] == 'BLOCK_JOB_CANCELLED': | |
| self.assert_qmp(event, 'data/device', 'drive0') | |
| cancelled = True | |
| elif event['event'] == 'JOB_STATUS_CHANGE': | |
| self.assert_qmp(event, 'data/id', 'drive0') | |
| else: | |
| self.fail("Unexpected event %s" % (event['event'])) | |
| self.assert_no_active_block_jobs() | |
| # Tests that the insertion of the commit_top filter node doesn't make a | |
| # difference to query-blockstat | |
| def test_implicit_node(self): | |
| if self.image_len == 0: | |
| return | |
| self.assert_no_active_block_jobs() | |
| self.vm.cmd('block-commit', device='drive0', top=mid_img, | |
| base=backing_img, speed=(self.image_len // 4)) | |
| result = self.vm.qmp('query-block') | |
| self.assert_qmp(result, 'return[0]/inserted/file', test_img) | |
| self.assert_qmp(result, 'return[0]/inserted/drv', iotests.imgfmt) | |
| self.assert_qmp(result, 'return[0]/inserted/backing_file', mid_img) | |
| self.assert_qmp(result, 'return[0]/inserted/backing_file_depth', 2) | |
| self.assert_qmp(result, 'return[0]/inserted/image/filename', test_img) | |
| self.assert_qmp(result, 'return[0]/inserted/image/backing-image/filename', mid_img) | |
| self.assert_qmp(result, 'return[0]/inserted/image/backing-image/backing-image/filename', backing_img) | |
| result = self.vm.qmp('query-blockstats') | |
| self.assert_qmp(result, 'return[0]/node-name', 'top') | |
| self.assert_qmp(result, 'return[0]/backing/node-name', 'mid') | |
| self.assert_qmp(result, 'return[0]/backing/backing/node-name', 'base') | |
| self.cancel_and_wait() | |
| self.assert_no_active_block_jobs() | |
| class TestRelativePaths(ImageCommitTestCase): | |
| image_len = 1 * 1024 * 1024 | |
| test_len = 1 * 1024 * 256 | |
| dir1 = "dir1" | |
| dir2 = "dir2/" | |
| dir3 = "dir2/dir3/" | |
| test_img = os.path.join(iotests.test_dir, dir3, 'test.img') | |
| mid_img = "../mid.img" | |
| backing_img = "../dir1/backing.img" | |
| backing_img_abs = os.path.join(iotests.test_dir, dir1, 'backing.img') | |
| mid_img_abs = os.path.join(iotests.test_dir, dir2, 'mid.img') | |
| def setUp(self): | |
| try: | |
| os.mkdir(os.path.join(iotests.test_dir, self.dir1)) | |
| os.mkdir(os.path.join(iotests.test_dir, self.dir2)) | |
| os.mkdir(os.path.join(iotests.test_dir, self.dir3)) | |
| except OSError as exception: | |
| if exception.errno != errno.EEXIST: | |
| raise | |
| iotests.create_image(self.backing_img_abs, TestRelativePaths.image_len) | |
| qemu_img('create', '-f', iotests.imgfmt, | |
| '-o', 'backing_file=%s' % self.backing_img_abs, | |
| '-F', 'raw', self.mid_img_abs) | |
| qemu_img('create', '-f', iotests.imgfmt, | |
| '-o', 'backing_file=%s' % self.mid_img_abs, | |
| '-F', iotests.imgfmt, self.test_img) | |
| qemu_img('rebase', '-u', '-b', self.backing_img, | |
| '-F', 'raw', self.mid_img_abs) | |
| qemu_img('rebase', '-u', '-b', self.mid_img, | |
| '-F', iotests.imgfmt, self.test_img) | |
| qemu_io('-f', 'raw', '-c', 'write -P 0xab 0 524288', self.backing_img_abs) | |
| qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xef 524288 524288', self.mid_img_abs) | |
| self.vm = iotests.VM().add_drive(self.test_img) | |
| self.vm.launch() | |
| def tearDown(self): | |
| self.vm.shutdown() | |
| os.remove(self.test_img) | |
| os.remove(self.mid_img_abs) | |
| os.remove(self.backing_img_abs) | |
| try: | |
| os.rmdir(os.path.join(iotests.test_dir, self.dir1)) | |
| os.rmdir(os.path.join(iotests.test_dir, self.dir3)) | |
| os.rmdir(os.path.join(iotests.test_dir, self.dir2)) | |
| except OSError as exception: | |
| if exception.errno != errno.EEXIST and exception.errno != errno.ENOTEMPTY: | |
| raise | |
| def test_commit(self): | |
| self.run_commit_test(self.mid_img, self.backing_img) | |
| qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', self.backing_img_abs) | |
| qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', self.backing_img_abs) | |
| def test_device_not_found(self): | |
| result = self.vm.qmp('block-commit', device='nonexistent', top='%s' % self.mid_img) | |
| self.assert_qmp(result, 'error/class', 'DeviceNotFound') | |
| def test_top_same_base(self): | |
| self.assert_no_active_block_jobs() | |
| result = self.vm.qmp('block-commit', device='drive0', top='%s' % self.mid_img, base='%s' % self.mid_img) | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', "Can't find '%s' in the backing chain" % self.mid_img) | |
| def test_top_invalid(self): | |
| self.assert_no_active_block_jobs() | |
| result = self.vm.qmp('block-commit', device='drive0', top='badfile', base='%s' % self.backing_img) | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', 'Top image file badfile not found') | |
| def test_base_invalid(self): | |
| self.assert_no_active_block_jobs() | |
| result = self.vm.qmp('block-commit', device='drive0', top='%s' % self.mid_img, base='badfile') | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', "Can't find 'badfile' in the backing chain") | |
| def test_top_is_active(self): | |
| self.run_commit_test(self.test_img, self.backing_img) | |
| qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', self.backing_img_abs) | |
| qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', self.backing_img_abs) | |
| def test_top_and_base_reversed(self): | |
| self.assert_no_active_block_jobs() | |
| result = self.vm.qmp('block-commit', device='drive0', top='%s' % self.backing_img, base='%s' % self.mid_img) | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', "Can't find '%s' in the backing chain" % self.mid_img) | |
| class TestSetSpeed(ImageCommitTestCase): | |
| image_len = 80 * 1024 * 1024 # MB | |
| def setUp(self): | |
| qemu_img('create', backing_img, str(TestSetSpeed.image_len)) | |
| qemu_img('create', '-f', iotests.imgfmt, | |
| '-o', 'backing_file=%s' % backing_img, '-F', 'raw', mid_img) | |
| qemu_img('create', '-f', iotests.imgfmt, | |
| '-o', 'backing_file=%s' % mid_img, | |
| '-F', iotests.imgfmt, test_img) | |
| qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 0 512', test_img) | |
| qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xef 524288 524288', mid_img) | |
| self.vm = iotests.VM().add_drive('blkdebug::' + test_img) | |
| self.vm.launch() | |
| def tearDown(self): | |
| self.vm.shutdown() | |
| os.remove(test_img) | |
| os.remove(mid_img) | |
| os.remove(backing_img) | |
| def test_set_speed(self): | |
| self.assert_no_active_block_jobs() | |
| self.vm.pause_drive('drive0') | |
| self.vm.cmd('block-commit', device='drive0', top=mid_img, speed=1024 * 1024) | |
| # Ensure the speed we set was accepted | |
| result = self.vm.qmp('query-block-jobs') | |
| self.assert_qmp(result, 'return[0]/device', 'drive0') | |
| self.assert_qmp(result, 'return[0]/speed', 1024 * 1024) | |
| self.cancel_and_wait(resume=True) | |
| class TestActiveZeroLengthImage(TestSingleDrive): | |
| image_len = 0 | |
| class TestReopenOverlay(ImageCommitTestCase): | |
| image_len = 1024 * 1024 | |
| img0 = os.path.join(iotests.test_dir, '0.img') | |
| img1 = os.path.join(iotests.test_dir, '1.img') | |
| img2 = os.path.join(iotests.test_dir, '2.img') | |
| img3 = os.path.join(iotests.test_dir, '3.img') | |
| def setUp(self): | |
| iotests.create_image(self.img0, self.image_len) | |
| qemu_img('create', '-f', iotests.imgfmt, | |
| '-o', 'backing_file=%s' % self.img0, '-F', 'raw', self.img1) | |
| qemu_img('create', '-f', iotests.imgfmt, | |
| '-o', 'backing_file=%s' % self.img1, | |
| '-F', iotests.imgfmt, self.img2) | |
| qemu_img('create', '-f', iotests.imgfmt, | |
| '-o', 'backing_file=%s' % self.img2, | |
| '-F', iotests.imgfmt, self.img3) | |
| qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xab 0 128K', self.img1) | |
| self.vm = iotests.VM().add_drive(self.img3) | |
| self.vm.launch() | |
| def tearDown(self): | |
| self.vm.shutdown() | |
| os.remove(self.img0) | |
| os.remove(self.img1) | |
| os.remove(self.img2) | |
| os.remove(self.img3) | |
| # This tests what happens when the overlay image of the 'top' node | |
| # needs to be reopened in read-write mode in order to update the | |
| # backing image string. | |
| def test_reopen_overlay(self): | |
| self.run_commit_test(self.img1, self.img0) | |
| class TestErrorHandling(iotests.QMPTestCase): | |
| image_len = 2 * 1024 * 1024 | |
| def setUp(self): | |
| iotests.create_image(backing_img, self.image_len) | |
| qemu_img('create', '-f', iotests.imgfmt, | |
| '-o', 'backing_file=%s' % backing_img, | |
| '-F', 'raw', mid_img) | |
| qemu_img('create', '-f', iotests.imgfmt, | |
| '-o', 'backing_file=%s' % mid_img, | |
| '-F', iotests.imgfmt, test_img) | |
| qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x11 0 512k', mid_img) | |
| qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x22 0 512k', test_img) | |
| self.vm = iotests.VM() | |
| self.vm.launch() | |
| self.blkdebug_file = iotests.file_path("blkdebug.conf") | |
| def tearDown(self): | |
| self.vm.shutdown() | |
| os.remove(test_img) | |
| os.remove(mid_img) | |
| os.remove(backing_img) | |
| def blockdev_add(self, **kwargs): | |
| self.vm.cmd('blockdev-add', **kwargs) | |
| def add_block_nodes(self, base_debug=None, mid_debug=None, top_debug=None): | |
| self.blockdev_add(node_name='base-file', driver='file', | |
| filename=backing_img) | |
| self.blockdev_add(node_name='mid-file', driver='file', | |
| filename=mid_img) | |
| self.blockdev_add(node_name='top-file', driver='file', | |
| filename=test_img) | |
| if base_debug: | |
| self.blockdev_add(node_name='base-dbg', driver='blkdebug', | |
| image='base-file', inject_error=base_debug) | |
| if mid_debug: | |
| self.blockdev_add(node_name='mid-dbg', driver='blkdebug', | |
| image='mid-file', inject_error=mid_debug) | |
| if top_debug: | |
| self.blockdev_add(node_name='top-dbg', driver='blkdebug', | |
| image='top-file', inject_error=top_debug) | |
| self.blockdev_add(node_name='base-fmt', driver='raw', | |
| file=('base-dbg' if base_debug else 'base-file')) | |
| self.blockdev_add(node_name='mid-fmt', driver=iotests.imgfmt, | |
| file=('mid-dbg' if mid_debug else 'mid-file'), | |
| backing='base-fmt') | |
| self.blockdev_add(node_name='top-fmt', driver=iotests.imgfmt, | |
| file=('top-dbg' if top_debug else 'top-file'), | |
| backing='mid-fmt') | |
| def run_job(self, expected_events, error_pauses_job=False): | |
| match_device = {'data': {'device': 'job0'}} | |
| events = [ | |
| ('BLOCK_JOB_COMPLETED', match_device), | |
| ('BLOCK_JOB_CANCELLED', match_device), | |
| ('BLOCK_JOB_ERROR', match_device), | |
| ('BLOCK_JOB_READY', match_device), | |
| ] | |
| completed = False | |
| log = [] | |
| while not completed: | |
| ev = self.vm.events_wait(events, timeout=5.0) | |
| if ev['event'] == 'BLOCK_JOB_COMPLETED': | |
| completed = True | |
| elif ev['event'] == 'BLOCK_JOB_ERROR': | |
| if error_pauses_job: | |
| self.vm.cmd('block-job-resume', device='job0') | |
| elif ev['event'] == 'BLOCK_JOB_READY': | |
| self.vm.cmd('block-job-complete', device='job0') | |
| else: | |
| self.fail("Unexpected event: %s" % ev) | |
| log.append(iotests.filter_qmp_event(ev)) | |
| self.maxDiff = None | |
| self.assertEqual(expected_events, log) | |
| def event_error(self, op, action): | |
| return { | |
| 'event': 'BLOCK_JOB_ERROR', | |
| 'data': {'action': action, 'device': 'job0', 'operation': op}, | |
| 'timestamp': {'microseconds': 'USECS', 'seconds': 'SECS'} | |
| } | |
| def event_ready(self): | |
| return { | |
| 'event': 'BLOCK_JOB_READY', | |
| 'data': {'device': 'job0', | |
| 'len': 524288, | |
| 'offset': 524288, | |
| 'speed': 0, | |
| 'type': 'commit'}, | |
| 'timestamp': {'microseconds': 'USECS', 'seconds': 'SECS'}, | |
| } | |
| def event_completed(self, errmsg=None, active=True): | |
| max_len = 524288 if active else self.image_len | |
| data = { | |
| 'device': 'job0', | |
| 'len': max_len, | |
| 'offset': 0 if errmsg else max_len, | |
| 'speed': 0, | |
| 'type': 'commit' | |
| } | |
| if errmsg: | |
| data['error'] = errmsg | |
| return { | |
| 'event': 'BLOCK_JOB_COMPLETED', | |
| 'data': data, | |
| 'timestamp': {'microseconds': 'USECS', 'seconds': 'SECS'}, | |
| } | |
| def blkdebug_event(self, event, is_raw=False): | |
| if event: | |
| return [{ | |
| 'event': event, | |
| 'sector': 512 if is_raw else 1024, | |
| 'once': True, | |
| }] | |
| return None | |
| def prepare_and_start_job(self, on_error, active=True, | |
| top_event=None, mid_event=None, base_event=None): | |
| top_debug = self.blkdebug_event(top_event) | |
| mid_debug = self.blkdebug_event(mid_event) | |
| base_debug = self.blkdebug_event(base_event, True) | |
| self.add_block_nodes(top_debug=top_debug, mid_debug=mid_debug, | |
| base_debug=base_debug) | |
| self.vm.cmd('block-commit', job_id='job0', device='top-fmt', | |
| top_node='top-fmt' if active else 'mid-fmt', | |
| base_node='mid-fmt' if active else 'base-fmt', | |
| on_error=on_error) | |
| def testActiveReadErrorReport(self): | |
| self.prepare_and_start_job('report', top_event='read_aio') | |
| self.run_job([ | |
| self.event_error('read', 'report'), | |
| self.event_completed('Input/output error') | |
| ]) | |
| self.vm.shutdown() | |
| self.assertFalse(iotests.compare_images(test_img, mid_img), | |
| 'target image matches source after error') | |
| def testActiveReadErrorStop(self): | |
| self.prepare_and_start_job('stop', top_event='read_aio') | |
| self.run_job([ | |
| self.event_error('read', 'stop'), | |
| self.event_ready(), | |
| self.event_completed() | |
| ], error_pauses_job=True) | |
| self.vm.shutdown() | |
| self.assertTrue(iotests.compare_images(test_img, mid_img), | |
| 'target image does not match source after commit') | |
| def testActiveReadErrorIgnore(self): | |
| self.prepare_and_start_job('ignore', top_event='read_aio') | |
| self.run_job([ | |
| self.event_error('read', 'ignore'), | |
| self.event_ready(), | |
| self.event_completed() | |
| ]) | |
| # For commit, 'ignore' actually means retry, so this will succeed | |
| self.vm.shutdown() | |
| self.assertTrue(iotests.compare_images(test_img, mid_img), | |
| 'target image does not match source after commit') | |
| def testActiveWriteErrorReport(self): | |
| self.prepare_and_start_job('report', mid_event='write_aio') | |
| self.run_job([ | |
| self.event_error('write', 'report'), | |
| self.event_completed('Input/output error') | |
| ]) | |
| self.vm.shutdown() | |
| self.assertFalse(iotests.compare_images(test_img, mid_img), | |
| 'target image matches source after error') | |
| def testActiveWriteErrorStop(self): | |
| self.prepare_and_start_job('stop', mid_event='write_aio') | |
| self.run_job([ | |
| self.event_error('write', 'stop'), | |
| self.event_ready(), | |
| self.event_completed() | |
| ], error_pauses_job=True) | |
| self.vm.shutdown() | |
| self.assertTrue(iotests.compare_images(test_img, mid_img), | |
| 'target image does not match source after commit') | |
| def testActiveWriteErrorIgnore(self): | |
| self.prepare_and_start_job('ignore', mid_event='write_aio') | |
| self.run_job([ | |
| self.event_error('write', 'ignore'), | |
| self.event_ready(), | |
| self.event_completed() | |
| ]) | |
| # For commit, 'ignore' actually means retry, so this will succeed | |
| self.vm.shutdown() | |
| self.assertTrue(iotests.compare_images(test_img, mid_img), | |
| 'target image does not match source after commit') | |
| def testIntermediateReadErrorReport(self): | |
| self.prepare_and_start_job('report', active=False, mid_event='read_aio') | |
| self.run_job([ | |
| self.event_error('read', 'report'), | |
| self.event_completed('Input/output error', active=False) | |
| ]) | |
| self.vm.shutdown() | |
| self.assertFalse(iotests.compare_images(mid_img, backing_img, fmt2='raw'), | |
| 'target image matches source after error') | |
| def testIntermediateReadErrorStop(self): | |
| self.prepare_and_start_job('stop', active=False, mid_event='read_aio') | |
| self.run_job([ | |
| self.event_error('read', 'stop'), | |
| self.event_completed(active=False) | |
| ], error_pauses_job=True) | |
| self.vm.shutdown() | |
| self.assertTrue(iotests.compare_images(mid_img, backing_img, fmt2='raw'), | |
| 'target image does not match source after commit') | |
| def testIntermediateReadErrorIgnore(self): | |
| self.prepare_and_start_job('ignore', active=False, mid_event='read_aio') | |
| self.run_job([ | |
| self.event_error('read', 'ignore'), | |
| self.event_completed(active=False) | |
| ]) | |
| # For commit, 'ignore' actually means retry, so this will succeed | |
| self.vm.shutdown() | |
| self.assertTrue(iotests.compare_images(mid_img, backing_img, fmt2='raw'), | |
| 'target image does not match source after commit') | |
| def testIntermediateWriteErrorReport(self): | |
| self.prepare_and_start_job('report', active=False, base_event='write_aio') | |
| self.run_job([ | |
| self.event_error('write', 'report'), | |
| self.event_completed('Input/output error', active=False) | |
| ]) | |
| self.vm.shutdown() | |
| self.assertFalse(iotests.compare_images(mid_img, backing_img, fmt2='raw'), | |
| 'target image matches source after error') | |
| def testIntermediateWriteErrorStop(self): | |
| self.prepare_and_start_job('stop', active=False, base_event='write_aio') | |
| self.run_job([ | |
| self.event_error('write', 'stop'), | |
| self.event_completed(active=False) | |
| ], error_pauses_job=True) | |
| self.vm.shutdown() | |
| self.assertTrue(iotests.compare_images(mid_img, backing_img, fmt2='raw'), | |
| 'target image does not match source after commit') | |
| def testIntermediateWriteErrorIgnore(self): | |
| self.prepare_and_start_job('ignore', active=False, base_event='write_aio') | |
| self.run_job([ | |
| self.event_error('write', 'ignore'), | |
| self.event_completed(active=False) | |
| ]) | |
| # For commit, 'ignore' actually means retry, so this will succeed | |
| self.vm.shutdown() | |
| self.assertTrue(iotests.compare_images(mid_img, backing_img, fmt2='raw'), | |
| 'target image does not match source after commit') | |
| class TestCommitWithFilters(iotests.QMPTestCase): | |
| img0 = os.path.join(iotests.test_dir, '0.img') | |
| img1 = os.path.join(iotests.test_dir, '1.img') | |
| img2 = os.path.join(iotests.test_dir, '2.img') | |
| img3 = os.path.join(iotests.test_dir, '3.img') | |
| def do_test_io(self, read_or_write): | |
| for index, pattern_file in enumerate(self.pattern_files): | |
| qemu_io('-f', iotests.imgfmt, | |
| '-c', | |
| f'{read_or_write} -P {index + 1} {index}M 1M', | |
| pattern_file) | |
| @iotests.skip_if_unsupported(['throttle']) | |
| def setUp(self): | |
| qemu_img('create', '-f', iotests.imgfmt, self.img0, '64M') | |
| qemu_img('create', '-f', iotests.imgfmt, self.img1, '64M') | |
| qemu_img('create', '-f', iotests.imgfmt, self.img2, '64M') | |
| qemu_img('create', '-f', iotests.imgfmt, self.img3, '64M') | |
| # Distributions of the patterns in the files; this is checked | |
| # by tearDown() and should be changed by the test cases as is | |
| # necessary | |
| self.pattern_files = [self.img0, self.img1, self.img2, self.img3] | |
| self.do_test_io('write') | |
| self.vm = iotests.VM().add_device('virtio-scsi,id=vio-scsi') | |
| self.vm.launch() | |
| self.vm.cmd('object-add', qom_type='throttle-group', id='tg') | |
| self.vm.cmd('blockdev-add', { | |
| 'node-name': 'top-filter', | |
| 'driver': 'throttle', | |
| 'throttle-group': 'tg', | |
| 'file': { | |
| 'node-name': 'cow-3', | |
| 'driver': iotests.imgfmt, | |
| 'file': { | |
| 'driver': 'file', | |
| 'filename': self.img3 | |
| }, | |
| 'backing': { | |
| 'node-name': 'cow-2', | |
| 'driver': iotests.imgfmt, | |
| 'file': { | |
| 'driver': 'file', | |
| 'filename': self.img2 | |
| }, | |
| 'backing': { | |
| 'node-name': 'cow-1', | |
| 'driver': iotests.imgfmt, | |
| 'file': { | |
| 'driver': 'file', | |
| 'filename': self.img1 | |
| }, | |
| 'backing': { | |
| 'node-name': 'bottom-filter', | |
| 'driver': 'throttle', | |
| 'throttle-group': 'tg', | |
| 'file': { | |
| 'node-name': 'cow-0', | |
| 'driver': iotests.imgfmt, | |
| 'file': { | |
| 'driver': 'file', | |
| 'filename': self.img0 | |
| } | |
| } | |
| } | |
| } | |
| } | |
| } | |
| }) | |
| def tearDown(self): | |
| self.vm.shutdown() | |
| self.do_test_io('read') | |
| os.remove(self.img3) | |
| os.remove(self.img2) | |
| os.remove(self.img1) | |
| os.remove(self.img0) | |
| # Filters make for funny filenames, so we cannot just use | |
| # self.imgX to get them | |
| def get_filename(self, node): | |
| return self.vm.node_info(node)['image']['filename'] | |
| def test_filterless_commit(self): | |
| self.vm.cmd('block-commit', | |
| job_id='commit', | |
| device='top-filter', | |
| top_node='cow-2', | |
| base_node='cow-1', | |
| backing_file=self.img1) | |
| self.wait_until_completed(drive='commit') | |
| self.assertIsNotNone(self.vm.node_info('cow-3')) | |
| self.assertIsNone(self.vm.node_info('cow-2')) | |
| self.assertIsNotNone(self.vm.node_info('cow-1')) | |
| # 2 has been committed into 1 | |
| self.pattern_files[2] = self.img1 | |
| def test_commit_through_filter(self): | |
| self.vm.cmd('block-commit', | |
| job_id='commit', | |
| device='top-filter', | |
| top_node='cow-1', | |
| base_node='cow-0', | |
| backing_file=self.img0) | |
| self.wait_until_completed(drive='commit') | |
| self.assertIsNotNone(self.vm.node_info('cow-2')) | |
| self.assertIsNone(self.vm.node_info('cow-1')) | |
| self.assertIsNone(self.vm.node_info('bottom-filter')) | |
| self.assertIsNotNone(self.vm.node_info('cow-0')) | |
| # 1 has been committed into 0 | |
| self.pattern_files[1] = self.img0 | |
| def test_filtered_active_commit_with_filter(self): | |
| # Add a device, so the commit job finds a parent it can change | |
| # to point to the base node (so we can test that top-filter is | |
| # dropped from the graph) | |
| self.vm.cmd('device_add', id='drv0', driver='scsi-hd', | |
| bus='vio-scsi.0', drive='top-filter') | |
| # Try to release our reference to top-filter; that should not | |
| # work because drv0 uses it | |
| result = self.vm.qmp('blockdev-del', node_name='top-filter') | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| self.assert_qmp(result, 'error/desc', 'Node top-filter is in use') | |
| self.vm.cmd('block-commit', | |
| job_id='commit', | |
| device='top-filter', | |
| base_node='cow-2') | |
| self.complete_and_wait(drive='commit') | |
| # Try to release our reference to top-filter again | |
| self.vm.cmd('blockdev-del', node_name='top-filter') | |
| self.assertIsNone(self.vm.node_info('top-filter')) | |
| self.assertIsNone(self.vm.node_info('cow-3')) | |
| self.assertIsNotNone(self.vm.node_info('cow-2')) | |
| # Check that drv0 is now connected to cow-2 | |
| blockdevs = self.vm.qmp('query-block')['return'] | |
| drv0 = next(dev for dev in blockdevs if dev['qdev'] == 'drv0') | |
| self.assertEqual(drv0['inserted']['node-name'], 'cow-2') | |
| # 3 has been committed into 2 | |
| self.pattern_files[3] = self.img2 | |
| def test_filtered_active_commit_without_filter(self): | |
| self.vm.cmd('block-commit', | |
| job_id='commit', | |
| device='top-filter', | |
| top_node='cow-3', | |
| base_node='cow-2') | |
| self.complete_and_wait(drive='commit') | |
| self.assertIsNotNone(self.vm.node_info('top-filter')) | |
| self.assertIsNone(self.vm.node_info('cow-3')) | |
| self.assertIsNotNone(self.vm.node_info('cow-2')) | |
| # 3 has been committed into 2 | |
| self.pattern_files[3] = self.img2 | |
| class TestCommitWithOverriddenBacking(iotests.QMPTestCase): | |
| img_base_a = os.path.join(iotests.test_dir, 'base_a.img') | |
| img_base_b = os.path.join(iotests.test_dir, 'base_b.img') | |
| img_top = os.path.join(iotests.test_dir, 'top.img') | |
| def setUp(self): | |
| qemu_img('create', '-f', iotests.imgfmt, self.img_base_a, '1M') | |
| qemu_img('create', '-f', iotests.imgfmt, self.img_base_b, '1M') | |
| qemu_img('create', '-f', iotests.imgfmt, '-b', self.img_base_a, | |
| '-F', iotests.imgfmt, self.img_top) | |
| self.vm = iotests.VM() | |
| self.vm.launch() | |
| # Use base_b instead of base_a as the backing of top | |
| self.vm.cmd('blockdev-add', { | |
| 'node-name': 'top', | |
| 'driver': iotests.imgfmt, | |
| 'file': { | |
| 'driver': 'file', | |
| 'filename': self.img_top | |
| }, | |
| 'backing': { | |
| 'node-name': 'base', | |
| 'driver': iotests.imgfmt, | |
| 'file': { | |
| 'driver': 'file', | |
| 'filename': self.img_base_b | |
| } | |
| } | |
| }) | |
| def tearDown(self): | |
| self.vm.shutdown() | |
| os.remove(self.img_top) | |
| os.remove(self.img_base_a) | |
| os.remove(self.img_base_b) | |
| def test_commit_to_a(self): | |
| # Try committing to base_a (which should fail, as top's | |
| # backing image is base_b instead) | |
| result = self.vm.qmp('block-commit', | |
| job_id='commit', | |
| device='top', | |
| base=self.img_base_a) | |
| self.assert_qmp(result, 'error/class', 'GenericError') | |
| def test_commit_to_b(self): | |
| # Try committing to base_b (which should work, since that is | |
| # actually top's backing image) | |
| self.vm.cmd('block-commit', | |
| job_id='commit', | |
| device='top', | |
| base=self.img_base_b) | |
| self.vm.event_wait('BLOCK_JOB_READY') | |
| self.vm.qmp('block-job-complete', device='commit') | |
| self.vm.event_wait('BLOCK_JOB_COMPLETED') | |
| if __name__ == '__main__': | |
| iotests.main(supported_fmts=['qcow2', 'qed'], | |
| supported_protocols=['file']) |