Re: Detect guest panic

[Emmanuel Lacour <elacour@easter-eggs.com>]

On Tue, Nov 18, 2008 at 09:39:35AM -0700, David Mair wrote:
>>   
> If the guest has a reachable IP address the simplest way might be to  
> ping the guest from the host every so often and, if it stops responding  
> for long enough to make you believe it has frozen, kill the qemu process  
> and run it again. I suppose you could also expose the qemu console via a  
> socket or other host file descriptor then you can have the pinging  
> program on the host try to reset the guest without killing the qemu 
> process.
>

Thanks for your help, but ping is not enough, if it doesn't answer it
doesn't mean that the WM is crashed, it can means that only the network
is crashed (and I have this kind of problems too (see other recent
thread for virtio_net ;)) and I have other fixes for those kind of
problems.

Well I'm looking for some sort of "watchdog" kvm device ;)