Bug 600172 – x11-misc/lightdm-1.21.0-r1 crashes at start with gtk greeter

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description jorgicio 2016-11-18 14:17:00 UTC]

Hi!

Both versions of lightdm 1.21.0 and 1.21.0-r1 crashes when using the gtk greeter. With 1.20.0 it doesn't happen.
I'll attach the logs to see what happens.

Thanks.

Reproducible: Always

[Comment 1 jorgicio 2016-11-18 14:17:30 UTC]

Created attachment 453726 [details]
Logs

[Comment 2 jorgicio 2016-11-18 14:17:44 UTC]

Created attachment 453728 [details]
seat-greeter

[Comment 3 jorgicio 2016-11-18 14:18:02 UTC]

Created attachment 453730 [details]
x-0

[Comment 4 jorgicio 2016-11-18 14:18:19 UTC]

Created attachment 453732 [details]
x-0-greeter

[Comment 5 jorgicio 2016-11-18 14:18:36 UTC]

Created attachment 453734 [details]
Xorg.0.log

[Comment 6 jorgicio 2016-11-18 14:19:09 UTC]

Created attachment 453736 [details]
The emerge --info

[Comment 7 Lars Wendler (Polynomial-C) (RETIRED) 2016-11-18 14:25:05 UTC]

Please attach your /etc/lightdm/lightdm.conf file to this bug.

[Comment 8 jorgicio 2016-11-18 14:34:36 UTC]

Created attachment 453738 [details]
the lightdm.conf

[Comment 9 jorgicio 2016-11-18 14:34:57 UTC]

Created attachment 453740 [details]
the lightdm-gtk-greeter.conf

[Comment 10 Lars Wendler (Polynomial-C) (RETIRED) 2016-11-18 14:41:29 UTC]

I'm quite sure the problem is line 71 in your lightdm.conf file.

Due to a broken sed statement in the lightdm-1.21.0 ebuild line 71 was changed from

# session-wrapper = Wrapper script to run session with

to

session-wrapper=/etc/lightdm/Xsession

which is not allowed in that section this part of your config belongs to. Revert that change (just cut'n'paste the above line starting with # and replace line 71 in your config with it) and your lightdm should no longer crash.

Please report back if that helps.

[Comment 11 jorgicio 2016-11-18 15:31:45 UTC]

(In reply to Lars Wendler (Polynomial-C) from comment #10)
> I'm quite sure the problem is line 71 in your lightdm.conf file.
> 
> Due to a broken sed statement in the lightdm-1.21.0 ebuild line 71 was
> changed from
> 
> # session-wrapper = Wrapper script to run session with
> 
> to
> 
> session-wrapper=/etc/lightdm/Xsession
> 
> which is not allowed in that section this part of your config belongs to.
> Revert that change (just cut'n'paste the above line starting with # and
> replace line 71 in your config with it) and your lightdm should no longer
> crash.
> 
> Please report back if that helps.

Done, I commented the line 71 and it's now working.

Thanks.

[Comment 12 Michał Górny 2016-11-20 08:11:56 UTC]

Reported the segv upstream.

[Comment 13 Lars Wendler (Polynomial-C) (RETIRED) 2016-11-25 12:37:39 UTC]

Fixed in version 1.21.1