Ubuntu
systemd-shim package

[utopic] [proposed] cgmanager breaks lightdm login

Bug #1342586 reported by dino99 on 2014-07-16

This bug affects 5 people

Affects		Status	Importance	Assigned to	Milestone
	systemd (Ubuntu)	Fix Released	High	Unassigned
	systemd-shim (Ubuntu)	Invalid	Undecided	Unassigned

Bug Description

The latest 'proposed' systemd-shim 6.3-ubuntu1 package install cgmanager. As a result X is first killed and then its impossible to login again.
This happen on Utopic i386 with unity-greeter, systemd-boot and a gtx 750 nvidia card.

The bad experience:
- trying to purge cgmanager also wants to remove a bunch of packages that will deeply break the system
- X can be started but the login always fail
- there is no way to open a terminal (ctrl+t) or (ctrl+alt+t) from X
- even cant get a command line

See original description

Tags:

dino99 (9d9) on 2014-07-16

tags:	added: regression-proposed systemd-boot utopic
description:	updated
tags:	added: bot-stop-nagging

dino99 (9d9) on 2014-07-16

description:

updated

Revision history for this message

dino99 (9d9) wrote on 2014-07-16:

Feedback from a recovery boot:

/var/crash:

get a _lib_systemd_systemd.0.crash :
systemd assert failure: alloc.c:315: Assertion failed in nih_free: ptr !=NULL

StacktraceTop:
__GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
__GI_abort() at abort.c:89
nih_free() from /lib/i386-linux-gnu/libnih.so.1

.xsession-errors:

x-session-manager: could not get session id for session. Check that logind is properly installed and pam_systemd is getting used at login. Connection refused.

initctl: UPSTART_SESSION isn't set in the environment. Unable to locate the Upstart instance.

Revision history for this message

dino99 (9d9) wrote on 2014-07-16:

reconfiguring lightdm and selecting gdm is the actual workaround

Steve Langasek (vorlon) on 2014-07-16

tags:

removed: regression-proposed

Revision history for this message

dino99 (9d9) wrote on 2014-07-16:

Other users having the same issue: http://ubuntuforums.org/showthread.php?t=2234728

Revision history for this message

James Hunt (jamesodhunt) wrote on 2014-07-17:

Don't nih_unref NULL value. Edit (1.4 KiB, text/plain)

Note: systemd packaging branch is out-of-date.

Attached patch stops a NULL deref which would explain this issue.

Revision history for this message

Martin Pitt (pitti) wrote on 2014-07-17:

Pushed James' fix to packaging git, thanks!

Changed in systemd (Ubuntu):
status:	New → Fix Committed
Changed in systemd-shim (Ubuntu):
status:	New → Invalid
Changed in systemd (Ubuntu):
importance:	Undecided → High

Revision history for this message

Launchpad Janitor (janitor) wrote on 2014-07-17:

This bug was fixed in the package systemd - 204-14ubuntu2

---------------
systemd (204-14ubuntu2) utopic; urgency=medium

* Add-cgmanager-support-to-logind.patch: Don't nih_unref a NULL value.
Thanks to James Hunt! (LP: #1342586)
-- Martin Pitt <email address hidden> Thu, 17 Jul 2014 13:03:19 +0200

Changed in systemd (Ubuntu):
status:	Fix Committed → Fix Released

Revision history for this message

Caleb Howland (Menzador) (menzador) wrote on 2014-08-28:

Whoever marked this bug 'invalid' apparently did not test it on UEFI hardware. The same bug exists for systemd-shim, making graphical login impossible.

Changed in systemd-shim (Ubuntu):
status:	Invalid → Confirmed

Revision history for this message

Martin Pitt (pitti) wrote on 2014-08-29:

I am on an UEFI system. I'm not sure what you mean by "the same bug", that bug was fixed by above systemd upload. If you have trouble with booting, can you please open a new bug? Preferably by submitting a crash report through Apport if you have any crash report; if you don't have crashes, please use "ubuntu-bug lightdm" (the problem might not be there, but that will automatically attach relevant logs). Thanks!