ulimit -u Linux (check & set) :
echo "kernel.sem = 250 32000 100 256" >> /etc/sysctl.conf sysctl -p in /etc/system : ulimit -u Linux (check & set) : echo "kernel
set semsys:seminfo_semmns=4096 set semsys:seminfo_semmni=1024 set semsys:seminfo_semmsl=512 (if instance is down): ulimit -u Linux (check & set) : echo "kernel
set maxuprc=16384 , then verify:
ls -l $ORACLE_HOME/bin/oracle # Should have setuid (rwsr-s--x) chmod 6751 $ORACLE_HOME/bin/oracle Increase (Linux): ulimit -u Linux (check & set) : echo "kernel