Re: [libvirt] Re: [PATCH] Hardware watchdog patch, version 6

Daniel P. Berrange wrote: >On Tue, Apr 07, 2009 at 04:19:42PM -0500, Hollis Blanchard wrote: > >>Hi Rich, your watchdog qemu patch is working fine for me (i6300esb, >>default reset behavior), but I was wondering... how should libvirt find >>out about the watchdog firing? >> > >This falls into the general problem space of how does QEMU notify its >management app of interesting events. We already really want the >ability to be notify of ENOSPC errors in disks, and also would like >to know if the VM is paused for any reason outside our control. >There have been proposals to just print an async message to the >monitor upon events, that mgmt app could then parse. This is a little >fragile though, so for a long term solutiuon we really need the generic >libqemumonitor.so type API with formal async notification support. > I just posted a patch series that demonstrate how I think it should work. FWIW, I think notifications are orthogonal to libqemumonitor.so and a non-human monitor mode.