参考
文章: ALERT: Bug 21915719 Database hang or may fail to OPEN in 12c IBM AIX or HPUX Itanium - ORA-742,DEADLOCK or ORA-600 [kcrfrgv_nextlwn_scn] ORA-600 [krr_process_read_error_2] (Doc ID 1957710.1) BUG描述: Bug 21915719 - 12c Hang: LGWR waiting for 'lgwr any worker group' or ORA-600 [kcrfrgv_nextlwn_scn] ORA-600 [krr_process_read_error_2] on IBM AIX / HPIA (Doc ID 21915719.8)
