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Re: [Qemu-devel] VM Hung issue
From: |
Umar Draz |
Subject: |
Re: [Qemu-devel] VM Hung issue |
Date: |
Wed, 18 Jan 2017 15:46:12 +0500 |
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 <address@hidden> 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
>