ORA-00600: Internal error code, arguments: [keltnfy-ldminit], [46], [1] handle an error

I wanted to deploy data guard today, but an error was reported when the slave database was started:

ORA-00600: Internal error code, arguments: [keltnfy-ldminit], [46], [1], [], [], [], [], [], []

The alert. Log alarm section is excerpted as follows:

 
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 is extracted as follows:

* ** 09:48:35. 962kccdebug_level = 0 dynamic strand is set to truerunning with 1 shared and 18 private strand (s ). zero-copy redo is false *** 09:49:36. 218 ksedmp: internal or fatal errorORA-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.