[libvirt-users] blockcommit of domain not successfull

[Lentes, Bernd]

----- On Jun 5, 2019, at 4:49 PM, Peter Krempa pkrempa at redhat.com wrote:

> On Wed, Jun 05, 2019 at 13:33:49 +0200, Lentes, Bernd wrote:
>> Hi Peter,
>> 
>> thanks for your help.
>> 
>> ----- On Jun 5, 2019, at 9:27 AM, Peter Krempa pkrempa at redhat.com wrote:
> 
> [...]
> 
>> 
>> > 
>> > So that's interresting. Usually assertion failure in qemu leads to
>> > calling abort() and thus the vm would have crashed. Didn't you HA
>> > solution restart it?
>> 
>> No. As said the VM didn't crash. It kept running.
> 
> That's interresting. I hope you manage to reproduce it then.
> 
>>  
>> > At any rate it would be really beneficial if you could collect debug
>> > logs for libvirtd which also contain the monitor interactions with qemu:
>> > 
>> > https://wiki.libvirt.org/page/DebugLogs
>> > 
>> > The qemu assertion failure above should ideally be reported to qemu, but
>> > if you are able to reproduce the problem with libvirtd debug logs
>> > enabled I can extract more useful info from there which the qemu project
>> > would ask you anyways.
>> 
>> I can't reproduce it. It seems to happen accidentally. But i can collect the
>> logs. Do they get very large ?
>> I can contact you the next time it happen. Is that ok for you ?
> 
> Unfortunately they do get very large if there's some monitoring
> gathering stats through libvirt, but it's okay to nuke them prior
> to attempting the block commit, or daily or so.
> 
> Please do contact me if you gather anything interresting.

Hi,

it happened again.
Following the log of my script it started on 8th of june at 5:59:09 (UTC+2) to blockcommit the domain.
These are the related lines in libvirtd.log:
===================================================
2019-06-07 20:30:57.170+0000: 30299: error : qemuMonitorIO:719 : internal error: End of file from qemu monitor
2019-06-08 03:59:17.690+0000: 30299: error : qemuMonitorIO:719 : internal error: End of file from qemu monitor
2019-06-08 03:59:26.145+0000: 30300: warning : qemuGetProcessInfo:1461 : cannot parse process status data
2019-06-08 03:59:26.191+0000: 30303: warning : qemuGetProcessInfo:1461 : cannot parse process status data
2019-06-08 03:59:56.095+0000: 27956: warning : qemuDomainObjBeginJobInternal:4865 : Cannot start job (destroy, none) for domain severin; current job is (modify, none) owned by (13061 remoteDispatchDomainBlockJobAbort, 0 <null>) for (38s,
 0s)
2019-06-08 03:59:56.095+0000: 27956: error : qemuDomainObjBeginJobInternal:4877 : Timed out during operation: cannot acquire state change lock (held by remoteDispatchDomainBlockJobAbort)
2019-06-08 03:59:56.325+0000: 13060: warning : qemuGetProcessInfo:1461 : cannot parse process status data
2019-06-08 03:59:56.372+0000: 30304: warning : qemuGetProcessInfo:1461 : cannot parse process status data
2019-06-08 04:00:26.503+0000: 13060: warning : qemuGetProcessInfo:1461 : cannot parse process status data
====================================================

Since then the script is stuck.

Thanks for your help.


Bernd
 

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