Oracle ASM instance fails with ORA-29702

[dbalearner]

I got this error on my Oracle 10g running on Red Hat ES3 with disk groups using ASM raw partitions. The alert log of the instance shows


Sun Oct 22 11:53:00 2006
Errors in file /u01/app/oracle/admin/mydb/bdump/mydb_asmb_3005.trc:
ORA-15064: communication failure with ASM instance
ORA-03113: end-of-file on communication channel


And ASM alert log gives the following

Sun Oct 22 11:53:00 2006
Errors in file /u01/app/oracle/admin/+ASM/bdump/+asm_smon_7370.trc:
ORA-29702: error occurred in Cluster Group Service operation
ORA-29702: error occurred in Cluster Group Service operation
Sun Oct 22 11:53:00 2006
SMON: terminating instance due to error 29702
Instance terminated by SMON, pid = 7370


When I do cat +asm_smon_7370.trc, I get

/u01/app/oracle/admin/+ASM/bdump/+asm_smon_7370.trc
Oracle Database 10g Enterprise Edition Release 10.1.0.3.0 - Production
With the Partitioning, OLAP and Data Mining options
ORACLE_HOME = /u01/app/oracle/product/10.1.0/db_1
System name: Linux
Node name: linux
Release: 2.4.21-4.EL
Version: #1 Fri Oct 3 18:13:58 EDT 2003
Machine: i686
Instance name: +ASM
Redo thread mounted by this instance: 0 <none>
Oracle process number: 7
Unix process pid: 7370, image: oracle@linux (SMON)

*** 2006-10-22 11:53:00.685
*** SERVICE NAME) 2006-10-22 11:53:00.669
*** SESSION ID33.1) 2006-10-22 11:53:00.669
clssgsGroupGetStatus: clsssRecvMsg failed 3 0)
clssgsGroupGetStatus: returning 8
kgxgnpstat: received ABORT event from CLSS
Group services Error [NM abort event ] @ 28019:715
error 29702 detected in background process
ORA-29702: error occurred in Cluster Group Service operation


It is rather rare event. I was wondering if anyone has seen it before?