Resource temporarily unavailable

问题描述：

$ su - test
su: /bin/bash: Resource temporarily unavailable

解决方案：
增加(Increase nproc value)

#查看nproc值大小
$ egrep -v "^$|^#" /etc/security/limits.d/20-nproc.conf
*          soft    nproc     2048
root       soft    nproc     unlimited

#增加nproc值大小为65535
$ cat /etc/security/limits.d/20-nproc.conf
*          soft    nproc     65535
root       soft    nproc     unlimited