Re: [libvirt] [PATCH] qemu: fix state change lock held byremoteDispatchDomainBlockJobAbort forever
...
> +++++++++++++++++++++++++++++++++++++++++
> 2016-08-26 07:51:05.685+0000: 8916: warning : qemuDomainObjBeginJobInternal:1571 :
> Cannot start job (query, none) for domain instance-00001b3a; current job is (modify,
> none) owned by (8914 remoteDispatchDomainBlockJobAbort, 0 <null>) for (30s,
0s)
>
> 2016-08-26 07:51:05.685+0000: 8916: error : qemuDomainObjBeginJobInternal:1583 :
> Timed out during operation: cannot acquire state change lock (held by
> remoteDispatchDomainBlockJobAbort)
> -----------------------------------------
>
...
However, the patch is wrong. We should just never attempt to wait for
the event if we already got it. In other words, diskPriv->blockjob
should have already be false at this point.
Jirka
Yes, right. I missed the qemuBlockJobUpdate() before the while().
I am not sure, whether there has other reason to cause the "event" reply
missed by libvirtd ? or just ignored/lost by the qemu ?
These months, we have encountered 3 times about the case when the error
and warning logs occured, the VM will have no responding forever, only
through reboot it.
Thanks very much.
BRs
Xiubo