ORA-00600: internal error code, arguments: [keltnfy-ldmInit], [4

ORA-00600: internal error code, arguments: [keltnfy-ldmInit], [46], [1] error handling 1 I wanted to deploy Data Guard today, but the slave database reported an error at startup: www.2cto.com ORA-00600: internal error code, arguments: [keltnfy-ldmInit], [46], [1], [], [], [], [], [] alert. the log alert section is excerpted as follows: [plain] Errors in file/u01/app/oracle/admin/orcl/udump/orcl_ora_5642.trc: ORA-00600: internal error code, arguments: [keltnfy-ldmInit], [46], [1], [], [], [], [], [] orcl_ora_5642.trc are extracted as follows: www.2cto.com [plain] **** 09:48:35. 962 KCCDEBUG_LEVEL = 0 Dynamic strand is set to TRUE Running with 1 shared and 18 private strand (s ). zero-copy redo is FALSE *** 09:49:36. 218 ksedmp: internal or fatal error ORA-00600: internal error code, arguments: [keltnfy-ldmInit], [46], [1], [], [], [], [], [], [] Current SQL information unavailable-no session. ----- Call Stack Trace ----- calling call entry argumen the final problem is that the hostname has been modified and the host can be changed back.