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(a)nongnu.org Michal