[Pkg-xfce-devel] Debian testing installs with XDM as dependency of Xfce fail (eventually) when switched to LightDM

[Gilbert Sullivan]

On 09/06/2011 03:17 PM, Yves-Alexis Perez wrote:
> On mar., 2011-09-06 at 14:30 -0400, Gilbert Sullivan wrote:
>> On 09/01/2011 05:29 PM, Gilbert Sullivan wrote:
>>> On 09/01/2011 04:29 PM, Yves-Alexis Perez wrote:
>>>> On jeu., 2011-09-01 at 15:01 -0400, Gilbert Sullivan wrote:
>>>>> If you think that this is possibly due to some gremlin in the original
>>>>> installation / dependencies setup I'll just wait until LightDM has been
>>>>> made of dependency of the Xfce desktop, and then try clean
>>>>> installations.
>>>>
>>>> It might be interesting to compare the output of dpkg -l on the 5
>>>> installs.
>>>
>>> I will try to gather this information within the ensuing day or so. The
>>> rest of today and most of tomorrow are spoken for by "she who must be
>>> obeyed". I may be limited to getting the output on only one machine out
>>> of each of the two groups, working and non-working. (Most of the systems
>>> are notebooks and travel with their users -- especially on weekends.)
>>>
>>
>> Okay, I switched back from XDM to LightDM on 09/02. I started seeing the
>> Init ID "co" respawning too fast warnings right away at logout /
>> shutdown / restart, and they escalated, but I didn't get to any point of
>> failure on that day. The following morning there were a number of
>> updates for testing, among them some C libraries and an acpid update.
>> Since that time, the AMD64 systems are not creating the huge
>> .xsession-error files I was seeing. The .xsession-error file is now just
>> a few hundred bytes in each session, and contains this pair of entries:
>>
>> (xfce4-sensors-plugin:2650): GLib-CRITICAL **: g_dir_read_name:
>> assertion `dir != NULL' failed
>>
>> (xfce4-sensors-plugin:2650): GLib-CRITICAL **: g_dir_close: assertion
>> `dir != NULL' failed
>> xscreensaver-command: activating and locking.
>>
>> I must have something misconfigured there?
>
> I don't think so.
>>
>> The Init ID "co" respawning too fast errors continue to be seen when
>> ending a session, and the list of them at shutdown / reboot time gets
>> longer and longer as the session length since the last logout / reboot
>> gets longer, but I guess I'm not seeing any serious repercussions from it.
>
> That's weird. It'd help to have a complete log (I think they might show
> in /var/log/syslog or dmesg).

I'll attach /var/log/syslog and the present output of dmesg. I hope the 
files aren't too large. If so, please suggest an alternative way for me 
to provide the information.

>>
>> I am NOT seeing the Init ID "co" respawning too fast errors on any
>> systems other than the AMD64 installations which had XDM as a dependency
>> of Xfce4. I still have no idea whether or not those errors had anything
>> to do with my Xfce session launch failures.
>
> Ok.
>>
>> I did gather the dpkg -l information on one symptomatic AMD64 and one
>> asymptomatic i386 system -- and I gathered lightdm.log examples, too.
>> I'm doubtful that there's anything of interest here, since it looks very
>> much as though the systems aren't going to fail again.
>
> Please share them.

Done. Again, I hope this doesn't make the mail too large. If the normal 
approach is to upload them to a hosting service somewhere, please let me 
know which one you'd prefer.

I did look back at earlier syslog and dmesg archives, but -- of course 
-- it has been long enough that I no longer have the logs produced when 
the T520i system was actually failing.

>>
>> Please let me know if you think the gathered information might be useful
>> or if you think that I should pursue the meaning of the Init ID "co"
>> respawning too fast messages in some way.
>
> Well, they look definitely weird, that should not happen on a correct
> system.
>

I'll look forward to any observations you may have. Thank you for your 
interest.

Best regards,
Gilbert
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