[libvirt-users] blockcommit of domain not successfull

[Lentes, Bernd]

Hi,

i have several domains running on a 2-node HA-cluster.
Each night i create snapshots of the domains, after copying the consistent raw file to a CIFS server i blockcommit the changes into the raw files.
That's running quite well.
But recent the blockcommit didn't work for one domain:
I create a logfile from the whole procedure:
===============================================================
 ...
Sat Jun  1 03:05:24 CEST 2019
Target     Source
------------------------------------------------
vdb        /mnt/snap/severin.sn
hdc        -

/usr/bin/virsh blockcommit severin /mnt/snap/severin.sn --verbose --active --pivot
Block commit: [  0 %]Block commit: [ 15 %]Block commit: [ 28 %]Block commit: [ 35 %]Block commit: [ 43 %]Block commit: [ 53 %]Block commit: [ 63 %]Block commit: [ 73 %]Block commit: [ 82 %]Block commit: [ 89 %]Block commit: [ 98 %]Block commit: [100 %]Target     Source
------------------------------------------------
vdb        /mnt/snap/severin.sn
 ...
==============================================================

The libvirtd-log says (it's UTC IIRC):
=============================================================
 ...
2019-05-31 20:31:34.481+0000: 4170: error : qemuMonitorIO:719 : internal error: End of file from qemu monitor
2019-06-01 01:05:32.233+0000: 4170: error : qemuMonitorIO:719 : internal error: End of file from qemu monitor
2019-06-01 01:05:43.804+0000: 22605: warning : qemuGetProcessInfo:1461 : cannot parse process status data
2019-06-01 01:05:43.848+0000: 22596: warning : qemuGetProcessInfo:1461 : cannot parse process status data
2019-06-01 01:06:11.438+0000: 26112: warning : qemuDomainObjBeginJobInternal:4865 : Cannot start job (destroy, none) for doma
in severin; current job is (modify, none) owned by (5372 remoteDispatchDomainBlockJobAbort, 0 <null>) for (39s, 0s)
2019-06-01 01:06:11.438+0000: 26112: error : qemuDomainObjBeginJobInternal:4877 : Timed out during operation: cannot acquire
state change lock (held by remoteDispatchDomainBlockJobAbort)
2019-06-01 01:06:13.976+0000: 5369: warning : qemuGetProcessInfo:1461 : cannot parse process status data
2019-06-01 01:06:14.028+0000: 22596: warning : qemuGetProcessInfo:1461 : cannot parse process status data
2019-06-01 01:06:44.165+0000: 5371: warning : qemuGetProcessInfo:1461 : cannot parse process status data
2019-06-01 01:06:44.218+0000: 22605: warning : qemuGetProcessInfo:1461 : cannot parse process status data
2019-06-01 01:07:14.343+0000: 5369: warning : qemuGetProcessInfo:1461 : cannot parse process status data
2019-06-01 01:07:14.387+0000: 22598: warning : qemuGetProcessInfo:1461 : cannot parse process status data
2019-06-01 01:07:44.495+0000: 22605: warning : qemuGetProcessInfo:1461 : cannot parse process status data
 ...
===========================================================
and "cannot parse process status data" continuously until the end of the logfile.

The syslog from the domain itself didn't reveal anything, it just continues to run.
The libvirt log from the domains just says:
qemu-system-x86_64: block/mirror.c:864: mirror_run: Assertion `((&bs->tracked_requests)->lh_first == ((void *)0))' failed.

Hosts are SLES 12 SP4 with libvirt-daemon-4.0.0-8.9.1.x86_64.


Bernd




-- 

Bernd Lentes 
Systemadministration 
Institut für Entwicklungsgenetik 
Gebäude 35.34 - Raum 208 
HelmholtzZentrum münchen 
bernd.lentes at helmholtz-muenchen.de 
phone: +49 89 3187 1241 
phone: +49 89 3187 3827 
fax: +49 89 3187 2294 
http://www.helmholtz-muenchen.de/idg 

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