Hello Stefan, Well yes, whenever vm hung, then there is nothing on vnc display, and network of that vm is also down. I can not ping the vm that time.
Mostly my Windows VMs are affected due to this and sometime same thing happen with Linux vm. On Wed, Jan 18, 2017 at 3:29 PM, Stefan Hajnoczi <stefa...@gmail.com> wrote: > On Wed, Jan 18, 2017 at 01:51:26PM +0500, Umar Draz wrote: > > I am running qemu-kvm 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. > > It's not clear whether the guest is hung or QEMU is hung. > > Does the VNC client connect successfully? If the client fails to > connect then QEMU is hung. If the client connects but the guest doesn't > respond to input then only the guest is hanging. > > If QEMU is hung please post a backtrace: > > # gstack $PID_OF_QEMU > > Stefan >
