linux-报错su: failed to execute /bin/bash: Resource temporarily unavailable

报错原因：

[root@iottest01 ~]# su - xinsec
上一次登录：二 11月 22 15:21:39 CST 2022从 192.168.10.170pts/3 上
su: failed to execute /bin/bash: 资源暂时不可用
su: failed to execute /bin/bash: Resource temporarily unavailable

解决方案：

修改/etc/security/limits.d/20-nproc.conf

[root@test86 ~]# cat /etc/security/limits.d/20-nproc.conf
# Default limit for number of user's processes to prevent
# accidental fork bombs.
# See rhbz #432903 for reasoning.

*          soft    nproc     4096
root       soft    nproc     unlimited

修改后

# Default limit for number of user's processes to prevent
# accidental fork bombs.
# See rhbz #432903 for reasoning.

*          soft    nproc     65536
root       soft    nproc     unlimited

那一列默认是4096，因为有些小不能满足其他用户资源需求，所以需要改大一点。比如我这边修改成65536