关机/启动时随机停止作业

关机/启动时随机停止作业

我几乎注意到每一个每次我启动或关闭 Ubuntu 时,都会出现这个作业:
A stop job is running for: LSB: Privilege escalation detection system [0s / 30s]
它让我很烦,因为它让我至少等待 30 秒才能启动或关闭我的电脑。
所以,我的问题是:这是什么?我该如何摆脱它?

如果有帮助的话,这里是输出systemctl list-units | grep -i Privilege

username@hostname:~$ systemctl list-units | grep -i Privilege
ninja.service                                                                loaded active running   LSB: "privilege escalation detection system"
polkitd.service                                                              loaded active running   Authenticate and Authorize Users to Run Privileged Tasks
username@hostname:~$ 

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