Did you restore from a 8.301 backup or earlier? I noticed that I nothing but problems when I restored my config. Once I restore to Factory Defaults and then just recreated everything I ran stable.
2012:03:05-14:03:29 phoenix-2 ha_daemon[5358]: id="38C1" severity="info" sys="System" sub="ha" name="Node 1 is dead, received no heart beats!"
2012:03:05-14:03:29 phoenix-2 ha_daemon[5358]: id="38B5" severity="info" sys="System" sub="ha" name="Master is dead, taking over!"
2012:03:05-14:03:29 phoenix-2 ha_daemon[5358]: id="38B0" severity="info" sys="System" sub="ha" name="Switching to Master mode"
2012:03:05-14:04:18 phoenix-1 ha_daemon[12972]: id="38A1" severity="warn" sys="System" sub="ha" name="Another master around!"
2012:03:05-14:04:18 phoenix-1 ha_daemon[12972]: id="38A0" severity="info" sys="System" sub="ha" name="Node 2 changed mode: SLAVE -> MASTER"
2012:03:05-14:04:18 phoenix-1 ha_daemon[12972]: id="38A1" severity="warn" sys="System" sub="ha" name="Another master around!"
2012:03:05-14:04:18 phoenix-1 ha_daemon[12972]: id="38A1" severity="warn" sys="System" sub="ha" name="Another master around!"
2012:03:05-14:04:18 phoenix-1 ha_daemon[12972]: id="38A1" severity="warn" sys="System" sub="ha" name="Another master around!"
2012:03:05-14:04:18 phoenix-1 ha_daemon[12972]: id="38A1" severity="warn" sys="System" sub="ha" name="Another master around!"
2012:03:05-14:03:30 phoenix-2 ha_daemon[5358]: id="38A0" severity="info" sys="System" sub="ha" name="Activating sync process for database on node 1"