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Bug 1623651 - Restarting dbus leaves systemd-logind in broken state
Summary: Restarting dbus leaves systemd-logind in broken state
Keywords:
Status: CLOSED DUPLICATE of bug 1532105
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: systemd
Version: 7.5
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: systemd-maint
QA Contact: qe-baseos-daemons
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-08-29 19:54 UTC by Mike Ely
Modified: 2019-01-31 18:13 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-01-31 18:13:56 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Mike Ely 2018-08-29 19:54:27 UTC 
Description of problem:
After restarting dbus with "systemctl restart dbus.service" new SSH sessions take 25 seconds to complete, and the following is logged:
pam_systemd(sshd:session): Failed to create session
: Connection timed out
dbus[30997]: [system] Activating via systemd: service name='org.freedesktop.login1' unit='dbus-org.freedesktop.login1.service'
dbus[30997]: [system] Failed to activate service 'org.freedesktop.login1': timed out

Running 'systemctl status -l org.freedesktop.login' returns:
Failed to abandon session scope: Transport endpoint is not connected

Restarting systemd-logind resolves the issue.

How reproducible:
Usually

Steps to Reproduce:
1. systemctl restart dbus.service
2. attempt to login via ssh
3. observe logs similar to above

Actual results:
The systemd-logind service enters a broken state. New connections via SSH (or presumably other service calling logind) take 25 seconds to complete.

Expected results:
The systemd-logind service does not enter a broken state after restarting dbus.
Comment 2 Giuseppe Ragusa 2018-12-09 17:49:18 UTC 
I can confirm the above detailed bug.
Isn't it possible to describe in terms of systemd services that a dbus restart should subsequently restart systemd-logind too?

It happened to me after dbus crashed (apparently after a ypbind restart, maybe I will open a separate bug for that):

Dec  3 01:08:51 polmcad8 systemd: Starting NIS/YP (Network Information Service) Clients to NIS Domain Binder...
Dec  3 01:08:51 polmcad8 dbus[8061]: avc:  received policyload notice (seqno=4)
Dec  3 01:08:51 polmcad8 dbus[34465]: avc:  received policyload notice (seqno=4)
Dec  3 01:08:51 polmcad8 setsebool: The allow_ypbind policy boolean was changed to 1 by root
Dec  3 01:08:51 polmcad8 org.a11y.Bus: Reloaded configuration
Dec  3 01:08:51 polmcad8 kernel: dbus-daemon[1051]: segfault at 0 ip 0000562e86944159 sp 00007ffe6107a8f0 error 6 in dbus-daemon[562e86929000+33000]
Dec  3 01:08:51 polmcad8 systemd: dbus.service: main process exited, code=killed, status=11/SEGV
Dec  3 01:08:51 polmcad8 systemd: Unit dbus.service entered failed state.
Dec  3 01:08:51 polmcad8 systemd: dbus.service failed.
Dec  3 01:08:51 polmcad8 systemd: Failed to propagate agent release message: Transport endpoint is not connected
Dec  3 01:08:51 polmcad8 systemd: Failed to propagate agent release message: Transport endpoint is not connected
Dec  3 01:08:51 polmcad8 systemd: Failed to propagate agent release message: Transport endpoint is not connected
Dec  3 01:08:51 polmcad8 systemd: Failed to propagate agent release message: Transport endpoint is not connected
Dec  3 01:08:51 polmcad8 rtkit-daemon[24493]: Demoting known real-time threads.
Dec  3 01:08:51 polmcad8 rtkit-daemon[24493]: Demoted 0 threads.
Dec  3 01:08:51 polmcad8 systemd: Started D-Bus System Message Bus.
Dec  3 01:08:51 polmcad8 systemd: Starting D-Bus System Message Bus...
Dec  3 01:08:51 polmcad8 ypbind: Binding NIS service
Dec  3 01:08:51 polmcad8 ypbind: Binding took 0 seconds
Dec  3 01:08:51 polmcad8 ypbind: NIS domain: mwtolab.polito.it, NIS server: dirac.nfs.private
Dec  3 01:08:51 polmcad8 systemd: Started NIS/YP (Network Information Service) Clients to NIS Domain Binder.
Dec  3 01:08:51 polmcad8 dbus[2026]: [system] Activating via systemd: service name='org.freedesktop.login1' unit='dbus-org.freedesktop.login1.service'
Dec  3 01:09:16 polmcad8 dbus[2026]: [system] Failed to activate service 'org.freedesktop.login1': timed out
Comment 3 David Tardon 2019-01-31 18:13:56 UTC 

*** This bug has been marked as a duplicate of bug 1532105 ***
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