possible progress on XO-1 camera issues

C├ęsar D. Rodas crodas at paraguayeduca.org
Thu Dec 17 15:08:55 EST 2009


Hi Peter, 

On Thu, 2009-12-17 at 16:33 +0000, Peter Robinson wrote:
> >> >> > I'm looking forward to read clues about how to fix it.
> >> >>
> >> >> It sounds suspiciously like a Xv issue. That could be anything from a
> >> >> missing kernel module to a X driver bug. Out of interest can you play
> >> >> video using totem? Possibly record a video using a XO-1 with the
> >> >> working 802 build and see if it will play on one with the F11 build.
> >> >> That would rule out that issue, or possibly we could craft up a
> >> >> gstreamer pipeline that takes the output of the camera and displays it
> >> >> on the screen. Let me know how you go with the totem test and then
> >> >> we'll see where we can take it from there, if that works I can work
> >> >> out what the pipeline would need to be to test that raw.
> >> >
> >> > Well, I've tried what you've suggested me, and it has the same problem.
> >> >
> >> > $ totem /media/34F7-79FD/11-Music-Painter\ \(medium\).ogg
> >> >
> >> > Gdk-ERROR **: The program 'totem' received an X Window System error.
> >> > This probably reflects a bug in the program.
> >> > The error was 'BadAlloc (insufficient resources for operation)'.
> >> >  (Details: serial 101 error_code 11 request_code 131 minor_code 19)
> >> >  (Note to programmers: normally, X errors are reported asynchronously;
> >> >   that is, you will receive the error a while after causing it.
> >> >   To debug your program, run it with the --sync command line
> >> >   option to change this behavior. You can then get a meaningful
> >> >   backtrace from your debugger if you break on the gdk_x_error()
> >> > function.)
> >> > aborting...
> >> > aborted
> >> >
> >> >
> >> > Is this output helping somehow? Is there a way I can help out to fix it?
> >>
> >> Yes, it looks like an X bug. I had a similar issue previously with
> >> another X driver. To get a proper backtrace using GDB can you do the
> >> following, this will then allow us to file a bug.
> >>
> >> Run gdb and then from the gdb prompt run the following commands. If
> >> gdb isn't installed you'll need to do a 'yum install -y gdb'. You'll
> >> probably need to install quite a few debuginfo packages to ensure we
> >> get a useful backtrace but if you post the backtrace first we can work
> >> out what we need.
> >>
> >> (gdb) exec-file totem --sync
> >> (gdb) break gdk_x_error()
> >> (gdb) r
> >>
> >> You'll then get totem come up. Try and play the video as before and
> >> you'll have it crash. The run the following with gdb
> >>
> >> (gdb) thread apply all bt
> >>
> >> and paste the complete output into a file and put it somewhere I can
> >> see it (it might be somewhat large). You can see a sample one from an
> >> issue I had with the nouveau driver previously here
> >> https://bugzilla.redhat.com/attachment.cgi?id=369702
> >>
> > GDB complained saying it was missing some packages such as
> > debuginfo-install totem-2.26.5-1.fc11.i586, but I think it will have not
> > side effect since I don't want to debug Totem, I want to debug X through
> > it.
> >
> > The output file is here
> > http://oficina.paraguayeduca.org/~crodas/X-totem-debug.log
> >
> > Is it useful? What else can we do in order to hunt this bug?
> 
> Its a start. We need (at least) also the following debuginfo packages.
> So a 'yum install -y gstreamer-debuginfo
> gstreamer-plugins-base-debuginfo gstreamer-debuginfo glib2-debuginfo
> totem-pl-parser-debuginfo glibc-debuginfo gtk2-debuginfo
> libX11-debuginfo xorg-x11-server-debuginfo'
Thanks for the clue, I've installed those missing packages and I re-run
the debugger, 

http://oficina.paraguayeduca.org/~crodas/X-totem-debug-1.log

Please let me know if I need to do something else to debug better. 
> 
> That should fill out the rest of the debuginfo to make the back trace
> more useful.
> 
> Regards,
> Peter
> 

Regards, 




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