[libvirt-users] QemuDomainObjEndJob called when libvirtd is started and libvirt insists qemu is using the wrong disk source.

[Laine Stump]

On 04/20/2015 08:45 PM, Matthew Schumacher wrote:
> List,
>
> I was under the impression that I could restart libvirtd without it
> destroying my VMs, but am not finding that to be true. 

If not, then something is wrong.

>  When I killall
> libvirtd then my VM's keep running, but then when I start libvirtd it
> calls qemuDomainObjEndJob:1542 : Stopping job: modify (async=none
> vm=0x7fb8cc0d8510 name=test) 

That message doesn't indicate that a domain is being destroyed, just
that libvirt performed some operation on the domain that modified it in
some way.

> and my domain gets whacked.

If your domain is terminated, there should be a libvirtd error log (at
least one saying that it got end of file from the monitor, meaning that
the qemu process itself terminated unexpectedly. In that case there
should be some indication of qemu's problem at the end of
/var/log/libvirt/qemu/test.log).

>
> Any way to disable this behavior?

Whatever the bug is causing this to happen, fix it :-)

>
> Also, while I'm at it, due to issues with snapshotting, I ended up with
> two domains where libvirt insists the disk source is incorrect which
> causes many things to break like this:
>
> root at wasvirt1:/etc/libvirt# virsh domblklist wasdev
> Target     Source
> ------------------------------------------------
> vda        /glustervol1/vm/wasdev/wasdev.reboot
> hdc        /dev/sr0
>
> Yet:
>
> root at wasvirt1:/etc/libvirt# lsof | grep wasdev
> 2235    /usr/bin/qemu-system-x86_64     /var/log/libvirt/qemu/wasdev.log
> 2235    /usr/bin/qemu-system-x86_64     /var/log/libvirt/qemu/wasdev.log
> 2235    /usr/bin/qemu-system-x86_64     /glustervol1/vm/wasdev/wasdev.qcow2
>
> The reason is because a blockcommit --active --pivot doesn't work, I
> blockjob --abort, then try again, it works the second time, but then the
> disk is wrong.
>
> Help would be greatly appreciated.
>
> Thanks,
> schu
>
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