On 2015-04-27 Michael Biebl <bi...@debian.org> wrote:
> Am 27.04.2015 um 18:15 schrieb Andreas Metzler:
> > Package: systemd
> > Version: 215-17
> > Severity: normal
> > I am not sure for how long but I guess less than two months (jessie),
> > systemd has started purging my /tmp on every reboot, although I have
> > these settings:
[...]
> Or maybe, have you tmpfs-on-tmp enabled?
> What's the output of systemctl status tmp.mount ?
Hello,
thanks for the help, that is exactly what seems to have happened:
--------------------------------------
ametzler@argenau:~$ systemctl status tmp.mount
● tmp.mount - Temporary Directory
Loaded: loaded (/lib/systemd/system/tmp.mount; disabled)
Active: active (mounted) since Mon 2015-04-27 17:07:24 CEST; 1h 33min ago
Where: /tmp
What: tmpfs
Docs: man:hier(7)
http://www.freedesktop.org/wiki/Software/systemd/APIFileSystems
Process: 178 ExecMount=/bin/mount -n tmpfs /tmp -t tmpfs -o
mode=1777,strictatime (code=exited, status=0/SUCCESS)
Warning: Journal has been rotated since unit was started. Log output is
incomplete or unavailable.
ametzler@argenau:~$ mount | grep ' /tmp'
tmpfs on /tmp type tmpfs (rw)
ametzler@argenau:~$ systemctl list-dependencies --reverse tmp.mount
tmp.mount
● ├─chroots-amd64\x2djessie-tmp.mount
● ├─chroots-amd64\x2dwheezy-tmp.mount
● ├─chroots-etch-tmp.mount
[...]
● └─chroots-wheezy-tmp.mount
--------------------------------------
The reverse dependencies are just bind-mounts:
ametzler@argenau:~$ grep /wheezy.*tmp /etc/fstab
/tmp /chroots/wheezy/tmp none bind,auto 0 0
It looks like this started on April 5 (journalctl history goes back to
2014):
ametzler@argenau:~$ journalctl --since=2015-03-15 | grep tmp.mount
Apr 05 15:20:55 argenau systemd[1]: tmp.mount: Directory /tmp to mount over is
not empty, mounting anyway.
Apr 06 13:38:42 argenau systemd[1]: tmp.mount: Directory /tmp to mount over is
not empty, mounting anyway.
[...]
/var/log/apt/history.log marks the upgrade to systemd 215-14 from -12 as
triggering point:
8X--------------------------------------
End-Date: 2015-04-04 13:09:01
Start-Date: 2015-04-05 07:39:52
Commandline: apt --option APT::Get::Purge=true full-upgrade
Upgrade: libcap2:i386 (2.24-7, 2.24-8), libudev1:i386 (215-12, 215-14), systemd-
sysv:i386 (215-12, 215-14), systemd:i386 (215-12, 215-14), libsystemd0:i386 (215
-12, 215-14), libcap2-bin:i386 (2.24-7, 2.24-8), udev:i386 (215-12, 215-14), lib
gudev-1.0-0:i386 (215-12, 215-14)
End-Date: 2015-04-05 07:40:28
Start-Date: 2015-04-10 19:31:11
8X------------------------------------
Looking at the respective changelog, only the fix for 779902 ("/tmp
can be mounted as tmpfs against user's will") seems to be
tmpfs-related.
cu Andreas
--
`What a good friend you are to him, Dr. Maturin. His other friends are
so grateful to you.'
`I sew his ears on from time to time, sure'
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