olpc-dm/Xorg segfault only if during systemd boot
georgejhunt at gmail.com
Fri Sep 11 12:38:14 EDT 2015
The resolution to the segfault in olpc-dm turned out to be obvious.
XSCE developers have responded to on-the-ground requests for teamviewer,
and added it to the ansible playbook, without realizing that it is not
compatible with olpc-dm. Teamviewer daemon was being pulled in by
The ansible playbook will be updated
On Mon, Sep 7, 2015 at 3:37 PM, James Cameron <quozl at laptop.org> wrote:
> The first message is a result of your problem, not a cause.
> The second message is normal, verified in my test just now, therefore
> not related to your problem.
> To look at the systemd journal for olpc-dm ...
> systemctl status olpc-dm.service | cat
> To look at olpc-dm client logs ...
> cat /tmp/olpc-dm*
> Do both of these in the failed state as well as the working state to
> identify the differences.
> On Mon, Sep 07, 2015 at 03:21:10PM -0700, George Hunt wrote:
> > I missed one obvious clue, thinking that Xorg.log was the strategic
> place to
> > look.
> > /var/log/messages (search olpc-dm) shows
> > • "olpc-dm.service holdoff time over, scheduling restart"
> > • and then "xauth: file /var/tmp/olpc-auth/.Xauthority does not exist"
> > googling "Xauthority create olpc" does not give a good hit, but suggests
> > should learn olpc-utils better.
> > On Mon, Sep 7, 2015 at 2:44 PM, James Cameron <quozl at laptop.org>
> > I'm interested in finding the cause; any such race condition that
> > prevents X startup may eventually occur depending on timing, so is
> > there some simple reproducer that we can apply to OLPC OS?
> > Where are your changes relative to OLPC OS?
> > What does the systemd journal say about olpc-dm service?
> > How do the journal, olpc-dm logs, and X logs differ between working
> > and failing case?
> > Where does gdb show the segmentation fault occurs?
> > --
> > James Cameron
> > http://quozl.linux.org.au/
> > References:
> >  mailto:quozl at laptop.org
> >  http://quozl.linux.org.au/
> > _______________________________________________
> > Devel mailing list
> > Devel at lists.laptop.org
> > http://lists.laptop.org/listinfo/devel
> James Cameron
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