KTSMG_UPDATE_MQL() MMNL absent for 4294967293 secs; Foregrounds taking over

Our company use rac 10g (10.1.0.4),we have two nodes,recently node one always reboot,I guest maybe dead lock
,can anyone help me how to solve this problem,thank you~

this is node one error,

ARCH: Connecting to console port...
Committing creation of archivelog '/u01/arch/1_28179_597862062.dbf' Thu Oct 9 10:00:44 2008
ARC1: Completed archiving thread 1 sequence 28179 (3737983174-3738502275) (yoydb1)
ARCH: Connecting to console port...
Thu Oct 9 10:28:53 2008
KTSMG_UPDATE_MQL(): MMNL absent for 4294967293 secs; Foregrounds taking over
Thu Oct 9 10:32:00 2008
KTSMG_UPDATE_MQL(): MMNL absent for 4294967290 secs; Foregrounds taking over
Thu Oct 9 10:41:22 2008
Error: KGXGN aborts the instance (6)
Thu Oct 9 10:41:22 2008
Errors in file /oracle/admin/yoydb/bdump/yoydb1_lmon_2460.trc: ORA-29702: error occurred in Cluster Group Service operation LMON: terminating instance due to error 29702 Thu Oct 9 10:41:22 2008
Errors in file /oracle/admin/yoydb/bdump/yoydb1_lms0_2464.trc: ORA-29702: error occurred in Cluster Group Service operation Thu Oct 9 10:41:22 2008
Errors in file /oracle/admin/yoydb/bdump/yoydb1_lms1_2466.trc: ORA-29702: error occurred in Cluster Group Service operation Thu Oct 9 10:41:22 2008
Errors in file /oracle/admin/yoydb/bdump/yoydb1_lmd0_2462.trc: ORA-29702: error occurred in Cluster Group Service operation Thu Oct 9 10:41:22 2008
System state dump is made for local instance Thu Oct 9 10:41:24 2008
Trace dumping is performing id=[cdmp_20081009104122] Thu Oct 9 11:18:11 2008 Received on Wed Oct 08 2008 - 22:30:42 CDT