On Fri, Sep 08, 2017 at 12:57:12PM +0000, Mark Syms wrote: > As we discussed regarding the handling of watchdog in XenServer, both > guest and host, I've had a discussion with our subject matter expert > (Andrew, cc'd) on this topic. The guest watchdogs are handled by a > hardware timer in the hypervisor but if the timers themselves are not > serviced within 5 seconds the host watchdog will fire and pull the > host down.
I presume the host watchdog is the NMI watchdog described in the Xen Hypervisor Command Line Options? watchdog = force | <boolean> (Default: false) Run an NMI watchdog on each processor. If a processor is stuck for longer than the watchdog_timeout, a panic occurs. When force is specified, in addition to running an NMI watchdog on each processor, unknown NMIs will still be processed. watchdog_timeout = <integer> (Default: 5) Set the NMI watchdog timeout in seconds. Specifying 0 will turn off the watchdog. -- Valentin _______________________________________________ Users mailing list: [email protected] http://lists.clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
