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[Bug 1816189] Re: Unable to create or revert snapshots
From: |
Launchpad Bug Tracker |
Subject: |
[Bug 1816189] Re: Unable to create or revert snapshots |
Date: |
Mon, 19 Apr 2021 04:17:13 -0000 |
[Expired for QEMU because there has been no activity for 60 days.]
** Changed in: qemu
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1816189
Title:
Unable to create or revert snapshots
Status in QEMU:
Expired
Bug description:
With an update to Qemu (3.1.x) I am unable to revert snapshots using
virt-manager or virsh. Virtual Machines existing before the update
seem to function properly. It is only after creating a new machine
that snapshots are misbehaving. I tested spinning up vms of
tumbleweed, leap15, and ubuntu 18.04. Each of them had the following
issues:
- With the machine running, live reversions act like they apply, but no
changes are actually made.
- With the machine paused, reversion also does not apply.
- With the machine turned off, reversion is not possible. Virsh is unable to
find the snapshot, and virt-manager errors out with:
Error running snapshot 'FreshInstall': internal error: qemu
unexpectedly closed the monitor: 2019-01-15T19:19:46.020247Z qemu-
system-x86_64: Device 'drive-virtio-disk0' does not have the requested
snapshot 'FreshInstall'
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 75, in
cb_wrapper
callback(asyncjob, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 111, in tmpcb
callback(*args, **kwargs)
File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 66, in
newfn
ret = fn(self, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/domain.py", line 1105, in
revert_to_snapshot
self._backend.revertToSnapshot(snap.get_backend())
File "/usr/lib64/python3.6/site-packages/libvirt.py", line 2024, in
revertToSnapshot
if ret == -1: raise libvirtError ('virDomainRevertToSnapshot() failed',
dom=self)
libvirt.libvirtError: internal error: qemu unexpectedly closed the
monitor: 2019-01-15T19:19:46.020247Z qemu-system-x86_64: Device
'drive-virtio-disk0' does not have the requested snapshot
'FreshInstall'
After doing some digging, the error occurs because of the following commit:
d98f26073bebddcd3da0ba1b86c3a34e840c0fb8
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