[ros-users] call for testing: camera1394 in C-turtle

Eric Perko wisesage5001 at gmail.com
Tue Nov 23 04:31:44 UTC 2010

There is a wiki page that talks about some of the alignment issues that have
come up with ROS on ARM.

http://www.ros.org/wiki/eros/alignment (take a look at the linked ticket as
well). Also take a look at this thread:
http://code.ros.org/lurker/thread/20101122.232925.f0d885ce.en.html and
perhaps try the -msoft-float option and see if that changes anything.

Hope that helps.

- Eric

On Mon, Nov 22, 2010 at 11:16 PM, Jack O'Quin <jack.oquin at gmail.com> wrote:

> On Mon, Nov 22, 2010 at 9:54 PM, Andrew Harris <andrew.unit at gmail.com>
> wrote:
> > On Mon, Nov 22, 2010 at 10:12 PM, Jack O'Quin <jack.oquin at gmail.com>
> wrote:
> >> Could you please post a gdb backtrace of the driver crash? Here's one
> >> way to do that...
> >>
> >>  $ roscd camera1394
> >>  $ gdb bin/camera1394_node
> >
> > Hi Jack,
> >
> >   Thanks for the hint.  I attached a text file gdb run.  When I run
> > from gdb can I just type "run"?  (That's what I did).  gdb seemed to
> > be unhappy with argc at first...
> Yes, that's right. You seem to have captured the SIGILL trap.
> It looks like the driver crashes while running the dynamic_reconfigure
> callback. That happens initially, even if dynamic reconfigure is not
> running. I'm not so clear to me what goes on at that point. I'd guess
> dynamic reconfigure is trying to send a message, perhaps to register
> its service.
> I'm not familiar with ARM tools, but given the illegal instruction I'd
> take a close look at the way you compiled everything. Perhaps the
> compiler is generating instructions for the wrong chip version or
> something.
> Maybe someone else is more familiar with this and can suggest what to try
> next.
> --
>  joq
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