
Hello, I am running libvirt-2.0.0-10.el7_3.2.x86_64 on CentOS 7.3, I have few vms of CentOS and Windows 2012 servers. Randomly they are hung, but the status of virtual machine keep running, vnc and network not responding. I have checked all /var/log/messages and /var/log/libvirt/qemu/vm.log but nothing found anything wrong. Would you please help what should I do more so I can find the issue. -- Umar

On 01/16/2017 04:13 PM, Umar Draz wrote:
Hello,
I am running libvirt-2.0.0-10.el7_3.2.x86_64 on CentOS 7.3, I have few vms of CentOS and Windows 2012 servers.
Randomly they are hung, but the status of virtual machine keep running, vnc and network not responding.
I have checked all /var/log/messages and /var/log/libvirt/qemu/vm.log but nothing found anything wrong.
Would you please help what should I do more so I can find the issue.
-- Umar
What state is qemu process in? You may try to "ping" qemu on the monitor: virsh qemu-monitor-command $dom '{"execute":"query-status"}' But this sounds like a qemu bug to me. Michal

Hi Michal, Well right now all the vms running fine, and this vm hung issue happening occasionally. The following out put is one of my running VM [root@kvm03 ~]# virsh qemu-monitor-command w7-DRAC '{"execute":"query-status"}' {"return":{"status":"running","singlestep":false,"running":true},"id":"libvirt-17597"} -- Umar On Tue, Jan 17, 2017 at 8:10 PM, Michal Privoznik <mprivozn@redhat.com> wrote:
On 01/16/2017 04:13 PM, Umar Draz wrote:
Hello,
I am running libvirt-2.0.0-10.el7_3.2.x86_64 on CentOS 7.3, I have few vms of CentOS and Windows 2012 servers.
Randomly they are hung, but the status of virtual machine keep running, vnc and network not responding.
I have checked all /var/log/messages and /var/log/libvirt/qemu/vm.log but nothing found anything wrong.
Would you please help what should I do more so I can find the issue.
-- Umar
What state is qemu process in? You may try to "ping" qemu on the monitor:
virsh qemu-monitor-command $dom '{"execute":"query-status"}'
But this sounds like a qemu bug to me.
Michal

On 01/18/2017 07:03 AM, Umar Draz wrote:
Hi Michal,
Well right now all the vms running fine, and this vm hung issue happening occasionally. The following out put is one of my running VM
[root@kvm03 ~]# virsh qemu-monitor-command w7-DRAC '{"execute":"query-status"}' {"return":{"status":"running","singlestep":false,"running":true},"id":"libvirt-17597"}
This is when the domain is hung? Unfortunately, my knowledge of qemu internals is not that deep to give you any suggestions other than qemu-devel@nongnu.org Michal

No that output was the running vm, I will do this again whenever vm hung, and will share the result with you. -- Umar On Wed, Jan 18, 2017 at 1:13 PM, Michal Privoznik <mprivozn@redhat.com> wrote:
Hi Michal,
Well right now all the vms running fine, and this vm hung issue happening occasionally. The following out put is one of my running VM
[root@kvm03 ~]# virsh qemu-monitor-command w7-DRAC '{"execute":"query-status"}' {"return":{"status":"running","singlestep":false,"running":
On 01/18/2017 07:03 AM, Umar Draz wrote: true},"id":"libvirt-17597"}
This is when the domain is hung? Unfortunately, my knowledge of qemu internals is not that deep to give you any suggestions other than qemu-devel@nongnu.org
Michal
participants (2)
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Michal Privoznik
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Umar Draz