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IDProjectCategoryView StatusLast Update
0014278CentOS-7systemdpublic2018-05-09 19:14
Status newResolutionopen 
Product Version 
Target VersionFixed in Version 
Summary0014278: systemd update causes /run tmpfs to fill up with sessions
DescriptionAfter a systemd update on october 21. Our servers /run/systemd/sessions keep filling up with files and it hogs the whole /run filesystem

# du -hs /run/systemd/sessions
976M /run/systemd/sessions

Systemd updated on 21. of october and after that session files are not cleaned from /run/systemd/sessions. This causes the system to become unstable, if run partition disk space runs out

Boot fixes the problem

This is also confirmed by my friend who administeres RHEL 7 environment.
TagsNo tags attached.




2017-12-15 17:26

manager   ~0030754

It would appear that updates to systemd now require a reboot to avoid this sort of problem and others related to it. The problem appears to be a known one upstream and newer systemd versions have been fixed - it's to do with losing its dbus connection.


2018-03-07 06:55

reporter   ~0031374

Hello , I experienced the same issue , the latest package in Centos repo is still "systemd-219-42"


2018-03-16 08:22

reporter   ~0031449

I am running into the same issue. /run/systemd/sessions has been filling up with files since October 22, and tonight it maxed out the disk space of /run. Is there any way to fix this without rebooting?


2018-03-16 08:25

manager   ~0031450

No. You should treat systemd updates as requiring a reboot for now until upstream fix the bug that causes it to become disconnected from dbus.


2018-03-16 08:44

reporter   ~0031451

Thanks, will the problem happen again on the next update of systemd even if I reboot now? Is there a bug report ticket for upstream? Seems like a critical issue as all my servers are slowly maxing out disk space on /run.


2018-03-16 15:55

reporter   ~0031453

@rbro Have not experienced this anymore on any of our servers after a reboot.

Issue History

Date Modified Username Field Change
2017-12-15 17:23 MarkusKoo New Issue
2017-12-15 17:26 TrevorH Note Added: 0030754
2018-03-07 06:55 pmozdz Note Added: 0031374
2018-03-16 08:22 rbro Note Added: 0031449
2018-03-16 08:25 TrevorH Note Added: 0031450
2018-03-16 08:44 rbro Note Added: 0031451
2018-03-16 15:55 MarkusKoo Note Added: 0031453