Your message dated Wed, 19 Jan 2022 10:10:35 +0100
with message-id <ff7e711b-42e9-b7bc-7677-8740f4d3e...@debian.org>
and subject line Re: Bug#821944 [systemd] automounts not unmounted after timeout
has caused the Debian Bug report #821944,
regarding [systemd] automounts not unmounted after timeout
to be marked as done.
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821944: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=821944
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--- Begin Message ---
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@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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--- End Message ---
--- Begin Message ---
Am 18.01.22 um 23:02 schrieb Michael Biebl:
Am 18.01.22 um 17:43 schrieb Christoph Martin:
unarchive 821944
reopen 821944
found 821944 247.3-6
thanks
Hi all,
referencing this old bug, which you closed because you could not
reproduce it.
I stumbled over the same issue and the interesting thing is, that the
behavior is dependend on the timeout value for the umount.
The original submitter reported the problem with TimeoutIdleSec=300 .
You tried you reproduce it with 30 seconds and it worked.
I saw the same problem with a timeout of 300 seconds. I also tried
with shorter values. 30 seconds worked. I then tried different values
and found that it worked up to 50 seconds. Beginning with 60 seconds
the IdleTimeout stops working.
Nope, still can not reproduce it with larger timeouts.
Doesn't really matter if I chose 60s or 300s
Are you absolutely sure something is not keeping your mount point busy?
Here is the relevant part from my /etc/fstab
10.20.30.40:/srv/nfs /mnt/remote nfs4
noauto,x-systemd.automount,x-systemd.idle-timeout=300 0 0
/dev/sdb3 /mnt/usb ext4 x-systemd.automount,x-systemd.idle-timeout=300 0 0
I tried with various timeouts, 30, 60, 180 and 300.
Here's an excerpt from the journal
<setup timeout of 180s, daemon-reload, restart automounts>
Jan 19 09:18:29 pluto systemd[1]: mnt-usb.automount: Deactivated
successfully.
Jan 19 09:18:29 pluto systemd[1]: Unset automount mnt-usb.automount.
Jan 19 09:18:29 pluto systemd[1]: Stopping mnt-usb.automount...
Jan 19 09:18:29 pluto systemd[1]: Set up automount mnt-usb.automount.
Jan 19 09:18:29 pluto systemd[1]: mnt-remote.automount: Deactivated
successfully.
Jan 19 09:18:29 pluto systemd[1]: Unset automount mnt-remote.automount.
Jan 19 09:18:29 pluto systemd[1]: Stopping mnt-remote.automount...
Jan 19 09:18:29 pluto systemd[1]: Set up automount mnt-remote.automount.
Jan 19 09:23:53 pluto systemd[1]: mnt-usb.automount: Deactivated
successfully.
Jan 19 09:23:53 pluto systemd[1]: Unset automount mnt-usb.automount.
Jan 19 09:23:53 pluto systemd[1]: Stopping mnt-usb.automount...
Jan 19 09:23:53 pluto systemd[1]: Set up automount mnt-usb.automount.
Jan 19 09:23:53 pluto systemd[1]: mnt-remote.automount: Deactivated
successfully.
Jan 19 09:23:53 pluto systemd[1]: Unset automount mnt-remote.automount.
Jan 19 09:23:53 pluto systemd[1]: Stopping mnt-remote.automount...
Jan 19 09:23:53 pluto systemd[1]: Set up automount mnt-remote.automount.
Jan 19 09:24:45 pluto systemd[1]: mnt-remote.automount: Got automount
request for /mnt/remote, triggered by 378449 (ls)
Jan 19 09:24:45 pluto systemd[1]: Mounting /mnt/remote...
Jan 19 09:24:45 pluto systemd[1]: Mounted /mnt/remote.
Jan 19 09:24:45 pluto systemd[1]: mnt-usb.automount: Got automount
request for /mnt/usb, triggered by 378449 (ls)
Jan 19 09:24:45 pluto systemd[1]: Mounting /mnt/usb...
Jan 19 09:24:45 pluto systemd[1]: Mounted /mnt/usb.
Jan 19 09:27:46 pluto systemd[1]: Unmounting /mnt/remote...
Jan 19 09:27:46 pluto systemd[1]: mnt-remote.mount: Deactivated
successfully.
Jan 19 09:27:46 pluto systemd[1]: Unmounted /mnt/remote.
Jan 19 09:39:00 pluto systemd[1]: mnt-usb.mount: Deactivated successfully.
Jan 19 09:39:29 pluto systemd[1]: mnt-remote.automount: Got automount
request for /mnt/remote, triggered by 380848 (ls)
Jan 19 09:39:29 pluto systemd[1]: Mounting /mnt/remote...
Jan 19 09:39:29 pluto systemd[1]: Mounted /mnt/remote.
Jan 19 09:39:29 pluto systemd[1]: mnt-usb.automount: Got automount
request for /mnt/usb, triggered by 380848 (ls)
Jan 19 09:39:29 pluto systemd[1]: Mounting /mnt/usb...
Jan 19 09:39:29 pluto systemd[1]: Mounted /mnt/usb.
Jan 19 09:42:30 pluto systemd[1]: Unmounting /mnt/remote...
Jan 19 09:42:30 pluto systemd[1]: Unmounting /mnt/usb...
Jan 19 09:42:30 pluto systemd[1]: mnt-usb.mount: Deactivated successfully.
Jan 19 09:42:30 pluto systemd[1]: Unmounted /mnt/usb.
Jan 19 09:42:30 pluto systemd[1]: mnt-remote.mount: Deactivated
successfully.
Jan 19 09:42:30 pluto systemd[1]: Unmounted /mnt/remote.
<setup timeout of 300s, daemon-reload, restart automounts>
Jan 19 09:44:26 pluto systemd[1]: mnt-remote.automount: Deactivated
successfully.
Jan 19 09:44:26 pluto systemd[1]: Unset automount mnt-remote.automount.
Jan 19 09:44:26 pluto systemd[1]: Stopping mnt-remote.automount...
Jan 19 09:44:26 pluto systemd[1]: Set up automount mnt-remote.automount.
Jan 19 09:44:26 pluto systemd[1]: mnt-usb.automount: Deactivated
successfully.
Jan 19 09:44:26 pluto systemd[1]: Unset automount mnt-usb.automount.
Jan 19 09:44:26 pluto systemd[1]: Stopping mnt-usb.automount...
Jan 19 09:44:26 pluto systemd[1]: Set up automount mnt-usb.automount.
Jan 19 09:44:36 pluto systemd[1]: mnt-remote.automount: Got automount
request for /mnt/remote, triggered by 380972 (ls)
Jan 19 09:44:36 pluto systemd[1]: Mounting /mnt/remote...
Jan 19 09:44:37 pluto systemd[1]: Mounted /mnt/remote.
Jan 19 09:44:37 pluto systemd[1]: mnt-usb.automount: Got automount
request for /mnt/usb, triggered by 380972 (ls)
Jan 19 09:44:37 pluto systemd[1]: Mounting /mnt/usb...
Jan 19 09:44:37 pluto systemd[1]: Mounted /mnt/usb.
Jan 19 09:49:37 pluto systemd[1]: Unmounting /mnt/remote...
Jan 19 09:49:37 pluto systemd[1]: Unmounting /mnt/usb...
Jan 19 09:49:37 pluto systemd[1]: mnt-remote.mount: Deactivated
successfully.
Jan 19 09:49:37 pluto systemd[1]: Unmounted /mnt/remote.
Jan 19 09:49:38 pluto systemd[1]: mnt-usb.mount: Deactivated successfully.
Jan 19 09:49:38 pluto systemd[1]: Unmounted /mnt/usb.
As you can see, in all cases the automount worked fine.
I did those experiments on the console, no graphical session running or
other processes which could keep the mounts busy.
I'm thus pretty sure your problem is not in systemd but "some" program
preventing the unmount.
Feel free to reopen, if you can reproduce the problem on the linux
console with no desktop environment / display manager etc running.
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