It may be virt, but I'm looking...

I'm very suspicious of this happening immediately after hotplugging a NIC, especially since the bug attached to https://gerrit.ovirt.org/#/c/98765/ talks about dropping packets. Dominik, did anything else change here?

On Mon, Mar 25, 2019 at 12:42 PM Anton Marchukov <amarchuk@redhat.com> wrote:
Which team is it? Is it Virt? Just checking who should open a bug in libvirt as suggested.

> On 22 Mar 2019, at 20:52, Nir Soffer <nsoffer@redhat.com> wrote:
>
> On Fri, Mar 22, 2019 at 7:12 PM Dafna Ron <dron@redhat.com> wrote:
> Hi,
>
> We are failing ovirt-engine master on test 004_basic_sanity.hotplug_cpu 
> looking at the logs, we can see that the for some reason, libvirt reports a vm as none responsive which fails the test.
>
> CQ first failure was for patch:
> https://gerrit.ovirt.org/#/c/98553/ - core: Add display="on" for mdevs, use nodisplay to override
> But I do not think this is the cause of failure.
>
> Adding Marcin, Milan and Dan as well as I think it may be netwrok related.
>
> You can see the libvirt log here:
> https://jenkins.ovirt.org/job/ovirt-master_change-queue-tester/13516/artifact/basic-suite.el7.x86_64/test_logs/basic-suite-master/post-004_basic_sanity.py/lago-basic-suite-master-host-1/_var_log/libvirt.log
>
> you can see the full logs here:
>
> http://jenkins.ovirt.org/job/ovirt-master_change-queue-tester/13516/artifact/basic-suite.el7.x86_64/test_logs/basic-suite-master/post-004_basic_sanity.py/
>
> Evgheni and I confirmed this is not an infra issue and the problem is ssh connection to the internal vm
>
> Thanks,
> Dafna
>
>
> error:
> 2019-03-22 15:08:22.658+0000: 22068: warning : qemuDomainObjTaint:7521 : Domain id=3 name='vm0' uuid=a9443d02-e054-40bb-8ea3-ae346e2d02a7 is tainted: hook-script
>
> Why our vm is tainted?
>
> 2019-03-22 15:08:22.693+0000: 22068: error : virProcessRunInMountNamespace:1159 : internal error: child reported: unable to set security context 'system_u:object_r:virt_content_t:s0' on '/rhev/data-center/mnt/blockSD/91d97292-9ac3-4d77-a152-c7ea3250b065/images/e60dae48-ecc7-4171-8bfe-42bfc2190ffd/40243c76-a384-4497-8a2d-792a5e10d510': No such file or directory
>
> This should not happen, libvirt is not adding labels to files in /rhev/data-center. It is using using its own mount
> namespace and adding there the devices used by the VM. Since libvirt create the devices in its namespace
> it should not complain about missing paths in /rhev/data-center.
>
> I think we should file a libvirt bug for this.

> 2019-03-22 15:08:28.168+0000: 22070: error : qemuDomainAgentAvailable:9133 : Guest agent is not responding: QEMU guest agent is not connected
> 2019-03-22 15:08:58.193+0000: 22070: error : qemuDomainAgentAvailable:9133 : Guest agent is not responding: QEMU guest agent is not connected
> 2019-03-22 15:13:58.179+0000: 22071: error : qemuDomainAgentAvailable:9133 : Guest agent is not responding: QEMU guest agent is not connected
>
> Do we have guest agent in the test VMs?
>
> Nir

--
Anton Marchukov
Associate Manager - RHV DevOps - Red Hat





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Ryan Barry

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