olpc-dm/Xorg segfault only if during systemd boot

George Hunt georgejhunt at gmail.com
Mon Sep 7 18:21:10 EDT 2015

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 I
should learn olpc-utils better.

On Mon, Sep 7, 2015 at 2:44 PM, James Cameron <quozl at laptop.org> wrote:

> 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/
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