数据库启动报错ORA-00445

数据库启动，alert日志报错ORA-00445，pmon在120s不能启动，日志如下：Tue Jul 18 08:32:59 2023Errors in file /opt/app/oracle/diag/rdbms/jcd/jcd/trace/jcd_ora_15233.trc  (incident=260431):ORA-00445: background process "PMON" did not start after 120 secondsIncident details in: /opt/app/oracle/diag/rdbms/jcd/jcd/incident/incdir_260431/jcd_ora_15233_i260431.trcUSER (ospid: 15233): terminating the instance due to error 445Instance terminated by USER, pid = 15233Tue Jul 18 08:34:19 2023 检查补丁没有打，是个bug参考如下文档： Troubleshooting Guide (TSG) - Ksvcreate: Process(xxxx) Creation Failed / ORA-00445: Background Process "xxxx" Did Not Start After n Seconds (Doc ID 1379200.1) ORA-00445: Background Process "xxxx" Did Not Start After 120 Seconds (Doc ID 1345364.1)报错：ORA-00445: Background Process "xxxx" Did Not Start After 120 Seconds解决：禁用ASLR # /sbin/sysctl -a | grep randomize kernel.randomize_va_space = 1 验证ASLR是否使用:#/sbin/sysctl -a | grep randomizekernel.randomize_va_space = 1参数值不是0说明ASLR在使用.在/etc/sysctl.conf种 增加参数kernel.randomize_va_space=0kernel.exec-shield=0