Public bug reported:
[impact]
restarting the systemd-logind service loses all existing sessions
[test case]
ubuntu@test-f:~$ loginctl list-sessions
SESSION UID USER SEAT TTY
3789 1000 ubuntu pts/0
1 sessions listed.
ubuntu@test-f:~$ journalctl -b -u systemd-logind
-- Logs begin at Thu 2021-09-23 11:11:57 UTC, end at Thu 2021-09-23 11:22:55
UTC. --
Sep 23 11:22:51 test-f systemd[1]: Starting Login Service...
Sep 23 11:22:51 test-f systemd-logind[198]: New seat seat0.
Sep 23 11:22:51 test-f systemd[1]: Started Login Service.
Sep 23 11:22:52 test-f systemd-logind[198]: New session 3789 of user ubuntu.
ubuntu@test-f:~$ sudo systemctl restart systemd-logind
ubuntu@test-f:~$ journalctl -b -u systemd-logind
-- Logs begin at Thu 2021-09-23 11:11:57 UTC, end at Thu 2021-09-23 11:23:07
UTC. --
Sep 23 11:22:51 test-f systemd[1]: Starting Login Service...
Sep 23 11:22:51 test-f systemd-logind[198]: New seat seat0.
Sep 23 11:22:51 test-f systemd[1]: Started Login Service.
Sep 23 11:22:52 test-f systemd-logind[198]: New session 3789 of user ubuntu.
Sep 23 11:23:07 test-f systemd[1]: Stopping Login Service...
Sep 23 11:23:07 test-f systemd[1]: systemd-logind.service: Succeeded.
Sep 23 11:23:07 test-f systemd[1]: Stopped Login Service.
Sep 23 11:23:07 test-f systemd[1]: Starting Login Service...
Sep 23 11:23:07 test-f systemd-logind[469]: Failed to add user by file name
1000, ignoring: Invalid argument
Sep 23 11:23:07 test-f systemd-logind[469]: User enumeration failed: Invalid
argument
Sep 23 11:23:07 test-f systemd-logind[469]: User of session 3789 not known.
Sep 23 11:23:07 test-f systemd-logind[469]: Session enumeration failed: No such
file or directory
Sep 23 11:23:07 test-f systemd-logind[469]: New seat seat0.
Sep 23 11:23:07 test-f systemd[1]: Started Login Service.
ubuntu@test-f:~$ loginctl list-sessions
No sessions.
[regression potential]
any regression would likely occur during a systemd-logind restart,
likely causing a loss of current login sessions.
[scope]
this is needed in f and earlier
this is fixed upstream by commit
ac4e03d45bcf4ad2e570cabdb218e9bac003cc80 which is included in v246, so
this is fixed in h and later already.
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
** Affects: systemd (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: systemd (Ubuntu Focal)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1944711
Title:
restarting systemd-logind loses all existing sessions
Status in systemd package in Ubuntu:
New
Status in systemd source package in Focal:
New
Bug description:
[impact]
restarting the systemd-logind service loses all existing sessions
[test case]
ubuntu@test-f:~$ loginctl list-sessions
SESSION UID USER SEAT TTY
3789 1000 ubuntu pts/0
1 sessions listed.
ubuntu@test-f:~$ journalctl -b -u systemd-logind
-- Logs begin at Thu 2021-09-23 11:11:57 UTC, end at Thu 2021-09-23 11:22:55
UTC. --
Sep 23 11:22:51 test-f systemd[1]: Starting Login Service...
Sep 23 11:22:51 test-f systemd-logind[198]: New seat seat0.
Sep 23 11:22:51 test-f systemd[1]: Started Login Service.
Sep 23 11:22:52 test-f systemd-logind[198]: New session 3789 of user ubuntu.
ubuntu@test-f:~$ sudo systemctl restart systemd-logind
ubuntu@test-f:~$ journalctl -b -u systemd-logind
-- Logs begin at Thu 2021-09-23 11:11:57 UTC, end at Thu 2021-09-23 11:23:07
UTC. --
Sep 23 11:22:51 test-f systemd[1]: Starting Login Service...
Sep 23 11:22:51 test-f systemd-logind[198]: New seat seat0.
Sep 23 11:22:51 test-f systemd[1]: Started Login Service.
Sep 23 11:22:52 test-f systemd-logind[198]: New session 3789 of user ubuntu.
Sep 23 11:23:07 test-f systemd[1]: Stopping Login Service...
Sep 23 11:23:07 test-f systemd[1]: systemd-logind.service: Succeeded.
Sep 23 11:23:07 test-f systemd[1]: Stopped Login Service.
Sep 23 11:23:07 test-f systemd[1]: Starting Login Service...
Sep 23 11:23:07 test-f systemd-logind[469]: Failed to add user by file name
1000, ignoring: Invalid argument
Sep 23 11:23:07 test-f systemd-logind[469]: User enumeration failed: Invalid
argument
Sep 23 11:23:07 test-f systemd-logind[469]: User of session 3789 not known.
Sep 23 11:23:07 test-f systemd-logind[469]: Session enumeration failed: No
such file or directory
Sep 23 11:23:07 test-f systemd-logind[469]: New seat seat0.
Sep 23 11:23:07 test-f systemd[1]: Started Login Service.
ubuntu@test-f:~$ loginctl list-sessions
No sessions.
[regression potential]
any regression would likely occur during a systemd-logind restart,
likely causing a loss of current login sessions.
[scope]
this is needed in f and earlier
this is fixed upstream by commit
ac4e03d45bcf4ad2e570cabdb218e9bac003cc80 which is included in v246, so
this is fixed in h and later already.
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