环境和故障描述：
Oracle 11.2.0.4 单机热备
Hp 11.31
数据库频繁产生如下报错：
$ more orasr11g_j001_9909.trc
Trace file /oracle11g/app/oracle/diag/rdbms/orasr11g/orasr11g/trace/oraxx11g_j001_9909.trc
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORACLE_HOME = /oracle11g/app/oracle/product/11.2.0
System name: HP-UX
Node name: Hxxx
Release: B.11.31
Version: U
Machine: ia64
Instance name: oraxx11g
Redo thread mounted by this instance: 1
Oracle process number: 0
Unix process pid: 9909, image: oracle@Hxx (J001)
*** 2024-04-22 10:40:10.153
Ioctl ASYNC_CONFIG error, errno = 1
根据metalink的解释，这是hp平台的Oracle数据库特有的故障现象。
Metalink给出的解决方案：
(1) # /usr/sbin/setprivgrp dba MLOCK
(2) # vi /etc/privgroup
This should contain dba MLOCK RTSCHED RTPRIO
设置后，故障现象消失。
类似问题，已经处理几单了。
