[CentOS] heartbeat segfaulting on CentOS 5 x86_64 (xen guest)

Hello,

I'm having trouble running two linux-ha heartbeat nodes and have them
talk to each other (or actually one of the nodes just doesn't work
even for local basic admin stuff, including a simple "service
heartbeat stop") and apparently it all boils down to the following Bug
in Linux-HA: http://developerbugs.linux-foundation.org//show_bug.cgi?id=1678

I'm persuing this with the linux-ha users mailing list but the bug
doesn't seem to get much attention from the linux-ha developers and I
was wondering whether anyone here has stumbled on it and have a work
around.

The strange thing is that the two noes are identical - both are CentOS
5 PV Xen guests on the same CentOS 5 Dom0 host and exactly the same
packages and config files - but one of them seems to work perfectly
while the other doesn't.

Anyone?

Thanks,

--Amos