On Mon, Aug 27, 2012 at 01:23:05PM -0600, David Ahern wrote: > On 8/27/12 10:58 AM, Dale Swanston wrote: > >Good idea. I'll try that. > > > >But are there any tools available to determine what the VM is doing when > >it appears hung? I've looked but haven't found much on debug or > >diagnostics on a running VM. Any links? > > If you have the vmlinux, enable the gdbserver stub via Qemu's > monitor. Then use 'gdb vmlinux', connect to the VM 'target remote > host:port' and look at the backtrace. Another option is to boot the host with profile=kvm, wait for the guest to hang, then do: readprofile -r ; readprofile -m System-map-of-guest.map > I have seen something similar using kvm-clock in a guest running 2.6.27. > > David -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
