ORA-27103 [ ] and ORA-6544 [pevm_peruws_callback-1] [27103] in Alert log
In a SPARC Solaris system (Ldom) which runs multiple database instances on 12.2.0.2, the alerts logs were flooded with ORA-27103 [ ] and ORA-6544 [pevm_peruws_callback-1] [27103] error messages. Database operations were impacted, new connection requests were starting to timeout. 2020-06-01T12:47:06.635714+05:30 Errors in file /u01/app/oracle/diag/rdbms/memdb/memdb1/trace/memdb1_dbw0_19325.trc: ORA-27103: internal error Additional information: 11818 Additional information: 9 ORA-27103: internal error SVR4 Error: 11: Resource temporarily unavailable Additional information: 7175 Additional information: 1114112 Errors in file /u01/app/oracle/diag/rdbms/memdb/memdb1/trace/memdb1_dbw0_19325.trc (incident=173114) (PDBNAME=CDB$ROOT): ORA-27103 [] [] [] [] [] [] [] [] [] [] [] [] Incident details in: /u01/app/oracle/diag/rdbms/memdb/memdb1/incident/incdir_173114/memdb1_dbw0_19325_i173114.trc 2020-06-01T12:47:06.651393+05:30 Errors in file /u...