Bug 1414804

Summary: systemd-tmpfiles-setup hangs during boot if /home is an auto-mounted NFS mount
Product: [Fedora] Fedora Reporter: Till Hofmann <thofmann>
Component: systemdAssignee: systemd-maint
Status: CLOSED EOL QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 25CC: chris, johannbg, lnykryn, mbiebl, msekleta, muadda, ssahani, s, systemd-maint, zbyszek
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Last Closed: 2017-12-12 10:50:53 UTC Type: Bug
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Description Till Hofmann 2017-01-19 13:59:59 UTC
Description of problem:
In our setup, /home is an NFS mount that is auto-mounted:

nfsserver:/home /home nfs4 rw,soft,sec=sys,noauto,x-systemd.automount 0 0

This worked on F23. With the upgrade to F25, systemd-tmpfiles-setup hangs indefinitely during boot.

I assume this is because /home is configured as a tmpdir in /usr/lib/tmpfiles.d/home.conf.

Making /home a normal mount point without automount (i.e. remove noauto,x-systemd.automount) fixes the issue.

Version-Release number of selected component (if applicable):
systemd-231-12

How reproducible:
not sure

Steps to Reproduce:
1. Add an NFS automount for /home (cf. above)
2. reboot

Actual results:
systemd-tmpfiles-setup hangs indefinitely. The system does not finish booting.

Additional info:
This is a machine directly upgraded from F23 to F25, but I don't think this is related to the upgrade.

Expected results:
The system boots normally.

Comment 1 Till Hofmann 2017-01-19 14:12:04 UTC
The issue does not appear when /home is a local automount. In that case, automount is triggered by systemd-tmpfile:
home.automount: Got automount request for /home, triggered by 961 (systemd-tmpfile)

Looking at system-tmpfiles-setup's service file, I can see that it contains the ordering dependency "After=local-fs.target", but nothing similar for remote fs. Is there an ordering dependency missing?

Comment 2 Chris Paras 2017-05-27 14:38:55 UTC
I had the same problem with a remote nfs /home mount. According to the tmpfiles.d manpage, you can put a symlink to /dev/null in /etc/tmpfiles.d/ to override the corresponding config file in /usr/lib/tmpfiles.d/ . Here's an excerpt from the tmpfiles.d manpage :

"If the administrator wants to disable a configuration file supplied by the vendor, the recommended way is to place a symlink to /dev/null in /etc/tmpfiles.d/ bearing the same filename."


So i did this :

ln -s /dev/null /etc/tmpfiles.d/home

I consider this a temporary solution, e.g. workaround. Your suggestion considering the ordering dependencies seems like something to look into.

Comment 3 Michael Biebl 2017-07-05 10:59:17 UTC
See upstream bug report https://github.com/systemd/systemd/issues/1959

Comment 4 Fedora End Of Life 2017-11-16 19:05:37 UTC
This message is a reminder that Fedora 25 is nearing its end of life.
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Comment 5 Fedora End Of Life 2017-12-12 10:50:53 UTC
Fedora 25 changed to end-of-life (EOL) status on 2017-12-12. Fedora 25 is
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