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err in alert log

edited Jan 6, 2010 5:48PM in Database Tuning (MOSC) 1 commentAnswered
 Hi,
We are having oracle rac db 10.2.0.4 setup and getting following error in alert log .

PMON failed to acquire latch, see PMON dump
Wed Jan  6 12:36:29 2010
Errors in file /opt/u01/app/oracle/admin/SIG/bdump/sig1_d004_1192.trc:
ORA-07445: exception encountered: core dump [nsevidh()+2240] [SIGSEGV] [Address not mapped to object] [0x000000020] [] []
Wed Jan  6 12:36:34 2010
Trace dumping is performing id=[cdmp_20100106123634]
Wed Jan  6 12:40:02 2010
Errors in file /opt/u01/app/oracle/admin/SIG/bdump/sig1_d001_1184.trc:
ORA-07445: exception encountered: core dump [nsevidh()+2240] [SIGSEGV] [Address not mapped to object] [0x000000020] [] []
Wed Jan  6 12:40:02 2010
Errors in file /opt/u01/app/oracle/admin/SIG/bdump/sig1_d003_1190.trc:

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