[libvirt] Re: [PATCH] Hardware watchdog patch, version 6
anthony at codemonkey.ws
Wed Apr 8 14:18:55 UTC 2009
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.
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