ORA-00600: 内部错误代码, 参数: [kqlnrc_1]

报错如下：

Mon Mar 31 18:45:59 2014
Errors in file /Oracle/app/oracle/diag/rdbms/zscims/zscims2/trace/zscims2_ora_11403518.trc （incident=28382）:
ORA-00600: 内部错误代码, 参数: [kqlnrc_1], [0x7000003F55C3B60], [], [], [], [], [], [], [], [], [], []
Incident details in: /oracle/app/oracle/diag/rdbms/zscims/zscims2/incident/incdir_28382/zscims2_ora_11403518_i28382.trc
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
Mon Mar 31 18:46:02 2014
Dumping diagnostic data in directory=[cdmp_20140331184602], requested by （instance=2, osid=11403518）, summary=[incident=28382].
Errors in file /oracle/app/oracle/diag/rdbms/zscims/zscims2/trace/zscims2_ora_11403518.trc （incident=28383）:
ORA-00600: 内部错误代码, 参数: [kqlnrc_1], [0x7000003F55C3B60], [], [], [], [], [], [], [], [], [], []
Incident details in: /oracle/app/oracle/diag/rdbms/zscims/zscims2/incident/incdir_28383/zscims2_ora_11403518_i28383.trc
Use ADRCI or Support Workbench to package the incident.
######

TRACE文件：

DDE: Problem Key "ORA 600 [kqlnrc_1]" was flood controlled （0x2）（incident: 28377）
ORA-00600: 内部错误代码, 参数: [kqlnrc_1], [0x7000003F55C3B60], [], [], [], [], [], [], [], [], [], []

LibraryHandle: Address=7000003f55c3b60 Hash=20d7264d LockMode=S PinMode=S LoadLockMode=0 Status=INVL
ObjectName: Name=ABC.DEF@GH
FullHashValue=566b232f34009a84471734df20d7264d Namespace=TABLE/PROCEDURE（01） Type=SYNONYM（05） Identifier=0 OwnerIdn=2147483644
Statistics: InvalidationCount=2 ExecutionCount=0 LoadCount=1 ActiveLocks=1 TotalLockCount=6 TotalPinCount=6
Counters: BrokenCount=1 RevocablePointer=1 KeepDependency=0 BucketInUse=5 HandleInUse=5 HandleReferenceCount=0
Concurrency: DependencyMutex=7000003f55c3c10（0, 5, 0, 0） Mutex=7000003f55c3c90（744, 56, 0, 6）
Flags=REM/PIN/TIM/[00022801]
WaitersLists:
Lock=7000003f55c3bf0[7000003f55c3bf0,7000003f55c3bf0]
Pin=7000003f55c3bd0[7000003f55c3bd0,7000003f55c3bd0]
LoadLock=7000003f55c3c48[7000003f55c3c48,7000003f55c3c48]
Timestamp: Current=05-28-2013 16:39:08
HandleReference: Address=7000003f55c3d38 Handle=0 Flags=[00]
LockInstance: id="LB566b232f34009a84" GlobalEnqueue=0 ReleaseCount=0
PinInstance: id="NB566b232f34009a84" GlobalEnqueue=0
LibraryObject: Address=7000003b5546fa0 HeapMask=0000-0001-0001-0000 Flags=EXS/LOC[0004] Flags2=[0000] PublicFlags=[0000]
DataBlocks:
Block: #="0" name=KGLH0^20d7264d pins=0 Change=NONE
Heap=7000003f4cf3fe8 Pointer=7000003b5547040 Extent=7000003b5546f20 Flags=I/-/P/A/-/-
FreedLocation=0 Alloc=0.257812 Size=4.000000 LoadTime=44819572096 DDE: Problem Key "ORA 600 [kqlnrc_1]" was flood controlled （0x2）（incident: 28378）
ORA-00600: 内部错误代码, 参数: [kqlnrc_1], [0x7000003F55C3B60], [], [], [], [], [], [], [], [], [], []

原因就是同义词失效：参考TRRACE中下面这句：

ObjectName: Name=ABC.DEF@GH
FullHashValue=566b232f34009a84471734df20d7264d Namespace=TABLE/PROCEDURE（01） Type=SYNONYM（05） Identifier=0 OwnerIdn=2147483644
Statistics: InvalidationCount=2 ExecutionCount=0 LoadCount=1 ActiveLocks=1 TotalLockCount=6 TotalPinCount=6
可以重建 ABC.DEF@GH，如没用就删除了拉倒。
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附参考MOS文档：How To Find The Object That Causing ORA-600 [kqlnrc_1] （文档 ID 1190673.1）

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