A couple of bugfixes to go on top of the HA NFS patch that I sent a 
while back:

* avoid call to waitpid() with SIGCHLD set to SIG_IGN -- we'll set 
SIGCHLD to SIG_DFL before calling the HA callout and then switch it back 
to its old value afterward

* fix arguments to waitpid() so that correct return value is reported in 
debug message

* fix signal handler for statd to additionally do a change_state() -- 
this is required to ensure that clients see a state change, else they 
may ignore the notification


Thanks,
Paul