ORA-00600: internal error code, arguments: [qctVCO:csform] ORA-07445: exception encountered: core dump [ksusrs()+81]

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Problem:    

Frequent ORA-600 and ORA-7445 errors

Errors in file /u01/app/oracle/product/10.2.0/admin/PDPP/udump/pdpp1_ora_2659.trc:
ORA-07445: exception encountered: core dump [ksusrs()+81] [SIGSEGV] [Invalid permissions for mapped object] [0x000000049] [] []
ORA-03135: connection lost contact
Tue Mar 31 11:51:05 2009
Trace dumping is performing id=[cdmp_20090331115105]
...
Wed Apr 29 08:37:51 2009
Errors in file /u01/app/oracle/product/10.2.0/admin/PDPP/bdump/pdpp1_s000_12277.trc:
ORA-00600: internal error code, arguments: [KGHALO4], [0xC0000001DB11B578], [], [], [], [], [], []
ORA-00604: error occurred at recursive SQL level 1
ORA-02397: exceeded PRIVATE_SGA limit, you are being logged off
ORA-01017: invalid username/password; logon denied
Wed Apr 29 08:38:04 2009
Trace dumping is performing id=[cdmp_20090429083804]

Tue Jun 9 16:09:05 2009
Errors in file /u01/app/oracle/product/10.2.0/admin/PDPP/udump/pdpp1_ora_18645.trc:
ORA-00600: internal error code, arguments: [qctVCO:csform], [0], [0], [0], [0], [112], [2], [224]

Solution:

Apply the 10.2.0.4 patch set.

Bug 5497611 -> ORA-00600: internal error code, arguments: [qctVCO:csform], [0], [0], [0], [0], [112], [2], [224]
Bug 5206570 -> ORA-07445: exception encountered: core dump [ksusrs()+81] [SIGSEGV] [Invalid permissions for mapped object] ...
Bug 4520733 -> ORA-02397 + ORA-00600 [KGHALO4]

All of the above suspect bugs are fixed in 10.2.0.4.

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