一套HP-UX Itanium平台上的10.2.0.2，实例意外终止，维护人员尝试重启实例，在数据库打开后数秒，smon后台进程报ORA-00600: internal error code, arguments: [kddummy_blkchk], [120], [856039], [6110]错误，实例再次意外终止。
部分告警日志如下:
Corrupt Block Found TSN = 50, TSNAME = TS_DNI_AAL_12 RFN = 120, BLK = 849708, RDBA = 504166188 OBJN = 701796, OBJD = 701796, OBJECT = MAP_WOL_SILJUK, SUBOBJECT = SEGMENT OWNER = DBOWN, SEGMENT TYPE = Table Segment Corrupt Block Found TSN = 50, TSNAME = TS_DNI_AAL_12 RFN = 121, BLK = 897927, RDBA = 508408711 OBJN = 701796, OBJD = 701796, OBJECT = MAP_WOL_SILJUK, SUBOBJECT = SEGMENT OWNER = DBOWN, SEGMENT TYPE = Table Segment Mon May 4 19:38:19 2009 Errors in file /oracle/admin/TDAY2DB/udump/tday2db_ora_2080.trc: ORA-00600: internal error code, arguments: [kddummy_blkchk], [121], [897927], [6110], [], [], [], [] Mon May 4 19:38:19 2009 Errors in file /oracle/admin/TDAY2DB/udump/tday2db_ora_2077.trc: ORA-00600: internal error code, arguments: [kddummy_blkchk], [120], [849708], [6110], [], [], [], [] Mon May 4 21:58:55 2009 Recovery of Online Redo Log: Thread 1 Group 5 Seq 90582 Reading mem 0 Mem# 0: /dev/vx/rdsk/day2db1tdg03/redo05.log Block recovery completed at rba 90582.42.16, scn 1858.566253676 ORACLE Instance TDAY2DB (pid = 22) - Error 81 encountered while recovering transaction (14, 22) on object 701796. Mon May 4 21:58:55 2009 Errors in file /oracle/admin/TDAY2DB/bdump/tday2db_smon_17651.trc: ORA-00081: address range [0x60000000000BD230, 0x60000000000BD234) is not readable ORA-00600: internal error code, arguments: [kddummy_blkchk], [120], [856039], [6110], [], [], [], [] Mon May 4 21:58:55 2009 Errors in file /oracle/admin/TDAY2DB/bdump/tday2db_smon_17651.trc: ORA-00081: address range [0x60000000000BD230, 0x60000000000BD234) is not readable ORA-00081: address range [0x60000000000BD230, 0x60000000000BD234) is not readable ORA-00600: internal error code, arguments: [kddummy_blkchk], [120], [856039], [6110], [], [], [], [] Mon May 4 21:58:57 2009 Errors in file /oracle/admin/TDAY2DB/bdump/tday2db_p020_17710.trc: ORA-00600: internal error code, arguments: [kddummy_blkchk], [120], [856039], [6110], [], [], [], [] Mon May 4 21:58:58 2009 Doing block recovery for file 120 block 856039 Block recovery from logseq 90582, block 37 to scn 7980615489643 Mon May 4 21:58:58 2009 Recovery of Online Redo Log: Thread 1 Group 5 Seq 90582 Reading mem 0 Mem# 0: /dev/vx/rdsk/day2db1tdg03/redo05.log Block recovery completed at rba 90582.42.16, scn 1858.566253676 Mon May 4 21:58:58 2009 SMON: Restarting fast_start parallel rollback Mon May 4 21:58:58 2009 Errors in file /oracle/admin/TDAY2DB/bdump/tday2db_p000_17661.trc: ORA-00600: internal error code, arguments: [kddummy_blkchk], [120], [856039], [6110], [], [], [], [] Mon May 4 21:58:59 2009 Doing block recovery for file 120 block 856039 Block recovery from logseq 90582, block 37 to scn 7980615489643 Mon May 4 21:58:59 2009 Recovery of Online Redo Log: Thread 1 Group 5 Seq 90582 Reading mem 0 Mem# 0: /dev/vx/rdsk/day2db1tdg03/redo05.log Block recovery completed at rba 90582.42.16, scn 1858.566253676 Mon May 4 21:58:59 2009 SMON: ignoring slave err,downgrading to serial rollback Mon May 4 21:59:00 2009 Errors in file /oracle/admin/TDAY2DB/bdump/tday2db_smon_17651.trc: ORA-00600: internal error code, arguments: [kddummy_blkchk], [120], [856039], [6110], [], [], [], [] Mon May 4 21:59:09 2009 Errors in file /oracle/admin/TDAY2DB/bdump/tday2db_pmon_17633.trc: ORA-00474: SMON process terminated with error Mon May 4 21:59:09 2009 PMON: terminating instance due to error 474 Instance terminated by PMON, pid = 17633当Oracle进程在读取数据块时会做一系列逻辑检测，当发现块当中存在逻辑讹误就会触发该ORA-00600 [kddummy_blkchk]等内部错误；[kddummy_blkchk]内部函数的功能大致与[kdBlkCheckError]相仿，它们都有3个参数argument： ORA-600 [kddummy_blkchk] [file#] [block#] [check code] ORA-600 [kdBlkCheckError]
