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RAC Instance Crashes With Error ORA-00600 [kjbrcvt:!S] (Doc ID 2524045.1)

Last updated on APRIL 17, 2023

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


o A RAC instance crashed with following error logged in Instance alert log (<ORACLE_BASE>/diag/rdbms/<DB_NAME>/<INSTANCE_NAME>/trace location):

Errors in file <ORACLE_BASE>/diag/rdbms/<DB_NAME>/<INSTANCE_NAME>/trace/<INSTANCE_NAME>_lms2_79756.trc  (incident=1106926):
ORA-00600: internal error code, arguments: [kjbrcvt:!S], [1], [0x08F8CA388], [0], [], [], [], [], [], [], [], []
Incident details in: <ORACLE_BASE>/diag/rdbms/<DB_NAME>/<INSTANCE_NAME>/incident/incdir_1106926/<INSTANCE_NAME>_lms2_79756_i1106926.trc

o The trace for the RAC resource shows this is an object marked as Read Mostly (from the incident trace log):

 GCS RESOURCE 0x99ba4ce8 hashq [0x84f64680,0x84f64680] name[0x1aa0ed.82] ...
   grant 0x8b281788 cvt (nil) send (nil)@4,0 write (nil),0@65536 
   flag 0x300 mdrole 0x2 mode 2 scan 0.0 role LOCAL

o The same trace shows the resource was granted in Exclusive mode (mode 2).

o The callstack reported by the LMS process from incident trace log:

[01]: kjbrcvt [GCS]<-- Signaling 
[02]: kjbmpocr [GCS] 
[03]: kjmxmpm [RAC_MLMDS] 
[04]: kjmpbmsg [RAC_MLMDS] 
[05]: kjmsm [RAC_MLMDS] 

o Note that after the ORA-600[kjbrcvt:!S], another instance can report the following error:

ORA-00600: internal error code, arguments: [kjbrsping:req], [0x0809D6C88], [0x4EFAE5278], [0x098E0B318], [2], [2], [0]

o The stack for the other error is:

[01]: kjbrsping [GCS]<-- Signaling 
[02]: kjbrpcvt [GCS] 
[03]: kjbrcvt [GCS] 
[04]: kjbmpocr [GCS] 
[05]: kjmxmpm [RAC_MLMDS] 
[06]: kjmpmsgi [RAC_MLMDS] 
[07]: kjmsm [RAC_MLMDS] 





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