Public bug reported:
I have Kubuntu 18.04 installed with /home/$USER directory using
ecryptfs. As a display manager I use standard sddm and sddm-locker. If I
leave my PC for a weekend powered on and locked then I'm unable to log
in on monday.
When I enter correct password in sddm - it prints that I entered
incorrect password. If I switch to any virtual terminal and try to login
there I'm immediately thrown out of session back to login prompt. That's
what I see in logs:
auth.log:
Jun 18 12:59:55 yanPC login[14123]: pam_ecryptfs: Passphrase file wrapped
Jun 18 12:59:56 yanPC login[14031]: pam_unix(login:session): session opened for
user yan by LOGIN(uid=0)
Jun 18 12:59:56 yanPC systemd-logind[770]: New session 1757 of user yan.
Jun 18 12:59:56 yanPC login[14031]: pam_ecryptfs: Error setting up private mount
Jun 18 12:59:56 yanPC login[14031]: pam_unix(login:session): session closed for
user yan
Jun 18 12:59:56 yanPC login[14031]: pam_ecryptfs: Error setting up private mount
Jun 18 12:59:56 yanPC systemd-logind[770]: Removed session 1757.
syslog:
Jun 18 12:59:56 yanPC systemd[1]: Started Session 1757 of user yan.
Jun 18 12:59:56 yanPC kernel: [870285.302824] cgroup: fork rejected by pids
controller in /user.slice/user-1000.slice/session-1757.scope
Jun 18 12:59:56 yanPC systemd[1]: getty@tty3.service: Service has no hold-off
time, scheduling restart.
Jun 18 12:59:56 yanPC systemd[1]: getty@tty3.service: Scheduled restart job,
restart counter is at 12.
Jun 18 12:59:56 yanPC systemd[1]: Stopped Getty on tty3.
Jun 18 12:59:56 yanPC systemd[1]: Started Getty on tty3.
kern.log:
Jun 18 12:59:26 yanPC kernel: [870256.029760] cgroup: fork rejected by pids
controller in /user.slice/user-1000.slice/session-1756.scope
Jun 18 12:59:56 yanPC kernel: [870285.302824] cgroup: fork rejected by pids
controller in /user.slice/user-1000.slice/session-1757.scope
If I login as root from virtual terminal and systemctl restart sddm.service
then I'm able to login from anywhere.
** Affects: linux-meta (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1777420
Title:
Login loop after inactivity in login screen
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