测试数据库实例突然夯机  alter日志中显示问题

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MessageDate,StatementType,Message

2019/1/16 13:32:04,,System state dump requested by (instance=1, osid=119513 (PMON)), summary=[abnormal instance termination].

System State dumped to trace file /home/data/oracle/diag/rdbms/orcl/orcl/trace/orcl_diag_119579_20190116133204.trc

2019/1/16 13:32:05,,PMON (ospid: 119513): terminating the instance due to error 471

2019/1/16 13:32:05,Error,opiodr aborting process unknown ospid (117792) as a result of ORA-1092

2019/1/16 13:32:05,Error,ORA-1092 : opitsk aborting process

Instance terminated by PMON, pid = 119513

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trace日志见附件