su -l 未正确重置 XDG_RUNTIME_DIR 环境变量的Bug

Unable to make or open a FIFO for universal variables with path '/run/user/1000/fishd.xxxxxxx.notifier': Permission denied

https://bugzilla.redhat.com/show_bug.cgi?id=753882#c17

会影响fish shell,

vim /etc/pam.d/su

在

include common-session

之前加上

session required pam_loginuid.so

即可

su -l does not set $XDG_RUNTIME_DIR for the new user

https://lists.opensuse.org/opensuse-bugs/2012-02/msg02070.html

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