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[Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10
From: |
ChristianEhrhardt |
Subject: |
[Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10 |
Date: |
Wed, 23 Aug 2017 16:56:20 -0000 |
Hmm,
it gets further but can still not complete this kind of migration:
$ virsh migrate --live --copy-storage-all kvmguest-artful-normal
qemu+ssh://10.22.69.30/system
Source:
2017-08-23 16:49:23.022+0000: initiating migration
Unexpected error in bdrv_check_perm() at
/build/qemu-VjSgVJ/qemu-2.10~rc3+dfsg/block.c:1574:
2017-08-23T16:49:23.203181Z qemu-system-x86_64: Block node is read-only
2017-08-23 16:49:23.762+0000: shutting down, reason=crashed
Target:
2017-08-23T16:49:23.495478Z qemu-system-x86_64: Failed to load
virtio_pci/modern_state:modern_state
2017-08-23T16:49:23.495505Z qemu-system-x86_64: Failed to load
virtio/extra_state:extra_state
2017-08-23T16:49:23.495510Z qemu-system-x86_64: Failed to load
virtio-balloon:virtio
2017-08-23T16:49:23.495515Z qemu-system-x86_64: error while loading state for
instance 0x0 of device '0000:00:06.0/virtio-balloon'
2017-08-23T16:49:23.496071Z qemu-system-x86_64: load of migration failed:
Input/output error
2017-08-23 16:49:23.797+0000: shutting down, reason=crashed
I was to eager to get this close-to-real so I don't have Davids fprintf's
applied anymore - I'll build those and then run it in the debugger, but until
then what I can see is that behavior slightly changes (worse).
It now crashes the guest on the source as well when aborting the migration.
I need to debug to confirm, but it seems it still aborts the migration
-> qemu-system-x86_64: load of migration failed: Input/output error
But then can't fall back to the source and crashes at
-> qemu-system-x86_64: Block node is read-only
--
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https://bugs.launchpad.net/bugs/1711602
Title:
--copy-storage-all failing with qemu 2.10
Status in QEMU:
New
Status in libvirt package in Ubuntu:
Confirmed
Status in qemu package in Ubuntu:
Confirmed
Bug description:
We fixed an issue around disk locking already in regard to qemu-nbd
[1], but there still seem to be issues.
$ virsh migrate --live --copy-storage-all kvmguest-artful-normal
qemu+ssh://10.22.69.196/system
error: internal error: qemu unexpectedly closed the monitor:
2017-08-18T12:10:29.800397Z qemu-system-x86_64: -chardev pty,id=charserial0:
char device redirected to /dev/pts/0 (label charserial0)
2017-08-18T12:10:48.545776Z qemu-system-x86_64: load of migration failed:
Input/output error
Source libvirt log for the guest:
2017-08-18 12:09:08.251+0000: initiating migration
2017-08-18T12:09:08.809023Z qemu-system-x86_64: Unable to read from socket:
Connection reset by peer
2017-08-18T12:09:08.809481Z qemu-system-x86_64: Unable to read from socket:
Connection reset by peer
Target libvirt log for the guest:
2017-08-18T12:09:08.730911Z qemu-system-x86_64: load of migration failed:
Input/output error
2017-08-18 12:09:09.010+0000: shutting down, reason=crashed
Given the timing it seems that the actual copy now works (it is busy ~10
seconds on my environment which would be the copy).
Also we don't see the old errors we saw before, but afterwards on the actual
take-over it fails.
Dmesg has no related denials as often apparmor is in the mix.
Need to check libvirt logs of source [2] and target [3] in Detail.
[1]: https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg02200.html
[2]: http://paste.ubuntu.com/25339356/
[3]: http://paste.ubuntu.com/25339358/
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- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, (continued)
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, Dr. David Alan Gilbert, 2017/08/22
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, ChristianEhrhardt, 2017/08/22
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, ChristianEhrhardt, 2017/08/22
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, ChristianEhrhardt, 2017/08/22
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, Dr. David Alan Gilbert, 2017/08/23
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, Stefan Hajnoczi, 2017/08/23
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, Dr. David Alan Gilbert, 2017/08/23
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, ChristianEhrhardt, 2017/08/23
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, ChristianEhrhardt, 2017/08/23
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10,
ChristianEhrhardt <=
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, ChristianEhrhardt, 2017/08/23
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, Dr. David Alan Gilbert, 2017/08/23
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, Dr. David Alan Gilbert, 2017/08/23
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, Dr. David Alan Gilbert, 2017/08/23
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, ChristianEhrhardt, 2017/08/23
- [Qemu-devel] [Bug 1711602] Re: --copy-storage-all failing with qemu 2.10, ChristianEhrhardt, 2017/08/23