On Tue, Jun 30, 2020 at 9:37 AM Michal Skrivanek
<michal.skriva...@redhat.com> wrote:
>
>
>
> > On 30 Jun 2020, at 08:30, Yedidyah Bar David <d...@redhat.com> wrote:
> >
> > Hi all,
> >
> > I am trying to verify fixes for ovirt-engine-rename, specifically for
> > OVN. Engine top patch is [1], OST patch [2]. Ran the manual job on
> > these [3].
> >
> > In previous patches, OST failed in earlier tests. Now, it passed these
> > tests, so I hope that my patches are enough for what I am trying to
> > do. However, [3] did fail later, during test_hotplug_cpu - it set the
> > number of CPUs, then tried to connect to the VM, and timed out.
> >
> > The logs imply that right after it changed the number of CPUs, the VM
> > was rebooted, apparently by libvirtd. Relevant log snippets:
> >
> > vdsm [4]:
> >
> > 2020-06-29 10:21:10,889-0400 DEBUG (jsonrpc/1) [virt.vm]
> > (vmId='7474280d-4501-4355-9425-63898757682b') Setting number of cpus
> > to : 2 (vm:3089)
> > 2020-06-29 10:21:10,952-0400 INFO  (jsonrpc/1) [api.virt] FINISH
> > setNumberOfCpus return={'status': {'code': 0, 'message': 'Done'},
> > 'vmList': {}} from=::ffff:192.168.201.4,54576, flow_id=7f9503ed,
> > vmId=7474280d-4501-4355-9425-63898757682b (api:54)
> > 2020-06-29 10:21:11,111-0400 DEBUG (periodic/0)
> > [virt.sampling.VMBulkstatsMonitor] sampled timestamp 2925.602824355
> > elapsed 0.160 acquired True domains all (sampling:451)
> > 2020-06-29 10:21:11,430-0400 DEBUG (jsonrpc/1) [jsonrpc.JsonRpcServer]
> > Return 'VM.setNumberOfCpus' in bridge with {} (__init__:356)
> > 2020-06-29 10:21:11,432-0400 INFO  (jsonrpc/1) [jsonrpc.JsonRpcServer]
> > RPC call VM.setNumberOfCpus succeeded in 0.56 seconds (__init__:312)
> > 2020-06-29 10:21:12,228-0400 INFO  (libvirt/events) [virt.vm]
> > (vmId='7474280d-4501-4355-9425-63898757682b') reboot event (vm:1033)
> >
> > qemu [5]:
> >
> > 2020-06-29T14:21:12.260303Z qemu-kvm: terminating on signal 15 from
> > pid 42224 (<unknown process>)
> > 2020-06-29 14:21:12.462+0000: shutting down, reason=destroyed
> >
> > libvirtd [6] itself does not log anything relevant AFAICT, but at
> > least it shows that the above unknown process is itself:
> >
> > 2020-06-29 14:18:16.212+0000: 42224: error : qemuMonitorIO:620 :
> > internal error: End of file from qemu monitor
> >
> > (Note that above line is from 3 minutes before the reboot, and the
> > only place in the log with '42224'. No other log there has 42224,
> > other than these and audit.log).
> >
> > Any idea? Is this a bug in libvirt? vdsm? I'd at least expect
> > something in the log for such a severe step.
>
> I’d suggest to rerun.

ok

> I don’t trust the CI env at all. Could be any reason.

If the qemu process would have simply died, I'd agree it's likely to
be an infra issue.
But if libvirt indeed killed it, I'd say it's either a bug there, or
some weird flow (which requires more logging, at least).

> It’s highly unlikely to be caused by your patch, and I can see on my infra 
> that OST is running well on both CentOS and Stream.

Well, also basic-suite is now passing for quite some time now without
any failures:

https://jenkins.ovirt.org/job/ovirt-system-tests_basic-suite-master_nightly/

Thanks,

>
> >
> > [1] https://gerrit.ovirt.org/109961
> > [2] https://gerrit.ovirt.org/109734
> > [3] 
> > https://jenkins.ovirt.org/view/oVirt%20system%20tests/job/ovirt-system-tests_manual/7031/
> > [4] 
> > https://jenkins.ovirt.org/view/oVirt%20system%20tests/job/ovirt-system-tests_manual/7031/artifact/exported-artifacts/test_logs/basic-suite-master/post-004_basic_sanity_pytest.py/lago-basic-suite-master-host-0/_var_log/vdsm/vdsm.log
> > [5] 
> > https://jenkins.ovirt.org/view/oVirt%20system%20tests/job/ovirt-system-tests_manual/7031/artifact/exported-artifacts/test_logs/basic-suite-master/post-004_basic_sanity_pytest.py/lago-basic-suite-master-host-0/_var_log/libvirt/qemu/vm0.log
> > [6] 
> > https://jenkins.ovirt.org/view/oVirt%20system%20tests/job/ovirt-system-tests_manual/7031/artifact/exported-artifacts/test_logs/basic-suite-master/post-004_basic_sanity_pytest.py/lago-basic-suite-master-host-0/_var_log/libvirt.log
> > --
> > Didi
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>


-- 
Didi
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