mirror of
https://github.com/Motorhead1991/qemu.git
synced 2025-07-28 21:03:54 -06:00

This is a better regression test for the bugs hidden by commit80fc5d26
('graph-lock: Disable locking for now'). With that commit reverted, it hangs instantaneously and reliably for me. It is important to have a reliable test like this, because the following commits will set out to fix the actual root cause of the deadlocks and then finally revert commit80fc5d26
, which was only a stopgap solution. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-ID: <20230605085711.21261-2-kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
85 lines
3.4 KiB
Python
Executable file
85 lines
3.4 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
# group: rw quick auto
|
|
#
|
|
# Copyright (C) 2023 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/>.
|
|
#
|
|
# Creator/Owner: Kevin Wolf <kwolf@redhat.com>
|
|
|
|
import asyncio
|
|
import iotests
|
|
|
|
iotests.script_initialize(supported_fmts=['qcow2'],
|
|
supported_platforms=['linux'])
|
|
iotests.verify_virtio_scsi_pci_or_ccw()
|
|
|
|
with iotests.FilePath('disk0.img') as img_path, \
|
|
iotests.FilePath('disk0-snap.img') as snap_path, \
|
|
iotests.FilePath('mirror-src.img') as src_path, \
|
|
iotests.FilePath('mirror-dst.img') as dst_path, \
|
|
iotests.VM() as vm:
|
|
|
|
img_size = '10M'
|
|
iotests.qemu_img_create('-f', iotests.imgfmt, img_path, img_size)
|
|
iotests.qemu_img_create('-f', iotests.imgfmt, '-b', img_path,
|
|
'-F', iotests.imgfmt, snap_path)
|
|
iotests.qemu_img_create('-f', iotests.imgfmt, src_path, img_size)
|
|
iotests.qemu_img_create('-f', iotests.imgfmt, dst_path, img_size)
|
|
|
|
iotests.qemu_io_log('-c', 'write 0 64k', img_path)
|
|
iotests.qemu_io_log('-c', 'write 1M 64k', snap_path)
|
|
iotests.qemu_io_log('-c', 'write 3M 64k', snap_path)
|
|
|
|
iotests.qemu_io_log('-c', f'write 0 {img_size}', src_path)
|
|
|
|
iotests.log('Launching VM...')
|
|
vm.add_object('iothread,id=iothread0')
|
|
vm.add_object('throttle-group,x-bps-write=1048576,id=tg0')
|
|
vm.add_blockdev(f'file,node-name=disk0-file,filename={img_path}')
|
|
vm.add_blockdev('qcow2,node-name=disk0-fmt,file=disk0-file')
|
|
vm.add_drive(snap_path, 'backing=disk0-fmt,node-name=disk0',
|
|
interface='none')
|
|
vm.add_device('virtio-scsi,iothread=iothread0')
|
|
vm.add_device('scsi-hd,drive=drive0')
|
|
|
|
vm.add_blockdev(f'file,filename={src_path},node-name=mirror-src-file')
|
|
vm.add_blockdev('qcow2,file=mirror-src-file,node-name=mirror-src')
|
|
vm.add_blockdev(f'file,filename={dst_path},node-name=mirror-dst-file')
|
|
vm.add_blockdev('qcow2,file=mirror-dst-file,node-name=mirror-dst-fmt')
|
|
vm.add_blockdev('throttle,throttle-group=tg0,file=mirror-dst-fmt,'
|
|
'node-name=mirror-dst')
|
|
vm.add_device('scsi-hd,drive=mirror-src')
|
|
|
|
vm.launch()
|
|
|
|
# The background I/O is created on unrelated nodes (so that they won't be
|
|
# drained together with the other ones), but on the same iothread
|
|
iotests.log('Creating some background I/O...')
|
|
iotests.log(vm.qmp('blockdev-mirror', job_id='job0', sync='full',
|
|
device='mirror-src', target='mirror-dst',
|
|
auto_dismiss=False))
|
|
|
|
iotests.log('Starting active commit...')
|
|
iotests.log(vm.qmp('block-commit', device='disk0', job_id='job1',
|
|
auto_dismiss=False))
|
|
|
|
# Should succeed and not time out
|
|
try:
|
|
vm.run_job('job1', wait=5.0)
|
|
vm.shutdown()
|
|
except asyncio.TimeoutError:
|
|
# VM may be stuck, kill it
|
|
vm.kill()
|
|
raise
|