Bug#821944: [systemd] automounts not unmounted after timeout

[Markus Grunwald]

Package: systemd
Version: 229-4
Severity: normal

--- Please enter the report below this line. ---

I have an automount configured so that it should unmount after 300s, but it is
not unmounted:

From man systemd.automount:
TimeoutIdleSec=
           Configures an idle timeout. Once the mount has been idle for the
           specified time, systemd will attempt to unmount.

 % cat /etc/systemd/system/mnt-vdr.automount
[Unit]
Description=VDR recordings
ConditionPathExists=/mnt/vdr
Wants=network.target
After=network.target

[Automount]
Where=/mnt/vdr
TimeoutIdleSec=300

[Install]
WantedBy=multi-user.target

% mount | grep vdr
systemd-1 on /mnt/vdr type autofs
(rw,relatime,fd=38,pgrp=1,timeout=300,minproto=5,maxproto=5,direct) 

% cd /mnt/vdr markus at zem % mount | grep vdr
systemd-1 on /mnt/vdr type autofs
(rw,relatime,fd=38,pgrp=1,timeout=300,minproto=5,maxproto=5,direct)
vdr:/srv/share/vdr on /mnt/vdr type nfs
(rw,relatime,vers=3,rsize=65536,wsize=65536,namlen=255,soft,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.178.47,mountvers=3,mountport=48705,mountproto=tcp,local_lock=none,addr=192.168.178.47)

% cd ~ 
% sleep 400; mount | grep vdr
systemd-1 on /mnt/vdr type autofs
(rw,relatime,fd=38,pgrp=1,timeout=300,minproto=5,maxproto=5,direct)
vdr:/srv/share/vdr on /mnt/vdr type nfs
(rw,relatime,vers=3,rsize=65536,wsize=65536,namlen=255,soft,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.178.47,mountvers=3,mountport=48705,mountproto=tcp,local_lock=none,addr=192.168.178.47)

So after 400s it's still mounted. I guarantee that no other process
accessed /mnt/vdr in that time.

--- System information. ---
Architecture: amd64
Kernel:       Linux 4.4.0-1-amd64

Debian Release: stretch/sid
  700 testing         www.deb-multimedia.org 
  700 testing         security.debian.org 
  700 testing         ftp2.de.debian.org 
  600 unstable        ftp2.de.debian.org 
  500 utopic          ppa.launchpad.net 
  500 saucy           ppa.launchpad.net 
  500 grml-testing    deb.grml.org 

--- Package information. ---
Depends                         (Version) | Installed
=========================================-+-==================
libacl1                     (>= 2.2.51-8) | 2.2.52-3
libaudit1                    (>= 1:2.2.1) | 
libblkid1                     (>= 2.17.2) | 
libcap2                       (>= 1:2.10) | 
libcryptsetup4               (>= 2:1.4.3) | 
libdbus-1-3                    (>= 1.1.1) | 
libkmod2                          (>= 5~) | 
libpam0g                    (>= 0.99.7.1) | 
libselinux1                    (>= 2.1.9) | 
libsystemd-journal0             (= 208-8) | 
libudev1                         (>= 189) | 
libwrap0                      (>= 7.6-4~) | 
libsystemd-login0               (= 208-8) | 
util-linux                  (>= 2.19.1-2) | 
initscripts             (>= 2.88dsf-53.2) | 
sysv-rc                                   | 
udev                                      | 
acl                                       | 
adduser                                   | 
libcap2-bin                               | 


Package Status      (Version) | Installed
=============================-+-===========
udev                          | 229-4


Recommends          (Version) | Installed
=============================-+-===========
libpam-systemd                | 229-4


Suggests        (Version) | Installed
=========================-+-===========
systemd-ui                | 



--- Output from package bug script ---


-- 
Markus Grunwald
https://www.the-grue.de

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