ORA-00445：Background Process “xxxx“ Did Not Start After 120 Seconds

[oracle@p11g01 ~]$ oerr ORA 00445
00445, 00000, "background process \"%s\" did not start after %s seconds"
// *Cause:  The specified process did not start after the specified time.
// *Action: Ensure that the background did not die and leave a trace file.

[root@p11g01 ~]# /sbin/sysctl -a | grep randomize
kernel.randomize_va_space = 2
[root@p11g01 ~]# /sbin/sysctl -a | grep exec-shield
kernel.exec-shield = 1

[root@p11g01 ~]# cat <>/etc/sysctl.conf
> kernel.randomize_va_space = 0
> kernel.exec-shield=0
> EOF
[root@p11g01 ~]# sysctl -p
kernel.shmall = 2097152
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmmax = 2076760064
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048586
kernel.panic_on_oops = 1
net.ipv4.conf.eth0.rp_filter = 1
net.ipv4.conf.eth1.rp_filter = 2
kernel.randomize_va_space = 0
kernel.exec-shield = 0


[root@p11g01 ~]# /sbin/sysctl -a | grep randomize
kernel.randomize_va_space = 0
[root@p11g01 ~]# /sbin/sysctl -a | grep exec-shield
kernel.exec-shield = 0

[root@p11g01 ~]# reboot