Hey, thanks for your suggestions!

One step closer - there was an uninitialized variable within the
framebuffer code :)

Now I can run:

====
r...@bennanonote:/# dfbg --dfb:debug -c ffffff

   ~~~~~~~~~~~~~~~~~~~~~~~~~~| DirectFB 1.4.2 |
~~~~~~~~~~~~~~~~~~~~~~~~~~
        (c) 2001-2009  The world wide DirectFB Open Source Community
        (c) 2000-2004  Convergence (integrated media) GmbH
      ----------------------------------------------------------------

(*) DirectFB/Core: Single Application Core. (2009-10-14 02:42) 
(*) Direct/Thread: Started 'VT Switcher' (633) [CRITICAL OTHER/OTHER
0/0] <2093056>...
(*) Direct/Thread: Started 'VT Flusher' (634) [DEFAULT OTHER/OTHER 0/0]
<2093056>...
(*) DirectFB/FBDev: Found 'JZ4740 FB' (ID 0) with frame buffer at
0x01980000, 300k (MMIO 0x13050000, 64k)
(*) Direct/Thread: Started 'Keyboard Input' (635) [INPUT OTHER/OTHER
0/0] <2093056>...
(*) DirectFB/Input: Keyboard 0.9 (directfb.org)
(*) DirectFB/Graphics: Generic Software Rasterizer 0.6 (directfb.org)
(*) DirectFB/Core/WM: Default 0.3 (directfb.org)
====

without freezing the device. But the display is only flickering but the
bg isn't changing.

Running the gtk2-app "gtkperf" (gtk2 linked against directfb) prints the
following:

====
r...@bennanonote:/# gtkperf
commandline read: gtkperf

   ~~~~~~~~~~~~~~~~~~~~~~~~~~| DirectFB 1.4.2 |
~~~~~~~~~~~~~~~~~~~~~~~~~~
        (c) 2001-2009  The world wide DirectFB Open Source Community
        (c) 2000-2004  Convergence (integrated media) GmbH
      ----------------------------------------------------------------

(*) DirectFB/Core: Single Application Core. (2009-10-14 02:42)
(*) Direct/Thread: Started 'VT Switcher' (638) [CRITICAL OTHER/OTHER
0/0] <2093056>...
(*) Direct/Thread: Started 'VT Flusher' (639) [DEFAULT OTHER/OTHER 0/0]
<2093056>...
(*) DirectFB/FBDev: Found 'JZ4740 FB' (ID 0) with frame buffer at
0x01980000, 300k (MMIO 0x13050000, 64k)
(*) Direct/Thread: Started 'Keyboard Input' (640) [INPUT OTHER/OTHER
0/0] <2093056>...
(*) DirectFB/Input: Keyboard 0.9 (directfb.org)
(*) DirectFB/Graphics: Generic Software Rasterizer 0.6 (directfb.org)
(*) DirectFB/Core/WM: Default 0.3 (directfb.org)

(gtkperf:636): Gdk-CRITICAL **: gdk_drawable_get_colormap: assertion
`GDK_IS_DRAWABLE (drawable)' failed
(*) Direct/Thread: Started 'EventBufferFeed' (641) [MESSAGING
OTHER/OTHER 0/0] <2093056>...
(!) [  636:    0.000] --> Caught signal 11 (at 0x28, invalid address)
<--
(!!!)  *** WARNING [still objects in 'Window Pool'] *** [object.c:241 in
fusion_object_pool_destroy()]
(!!!)  *** WARNING [still objects in 'Layer Region Pool'] ***
[object.c:241 in fusion_object_pool_destroy()]
(!!!)  *** WARNING [still objects in 'Layer Context Pool'] ***
[object.c:241 in fusion_object_pool_destroy()]
(!!!)  *** WARNING [still objects in 'Surface Pool'] *** [object.c:241
in fusion_object_pool_destroy()]
Aborted
====

Any kind of help is highly appreciated - thanks a lot in advance!

Mirko


On Fri, 2009-10-09 at 13:18 +0200, Niels Roest wrote:
> Hi Mirko,
> assuming you are using remote debugging..
> 
> the easiest way is to rebuild directfb from sources, with the 
> "./configure" option  "--enable-debug", and then run your program as 
> "dfbg --dfb:debug -c ffffff". This will print out lots of debugging, and 
> should give you an indication after which command it crashes. If your 
> link doesn't cope with the traffic you can dump to a file with the extra 
> option "--dfb:log-file=filename.txt". I expect the problem to be in the 
> area of frame buffer ioctls, which is normally a pain to debug - think 
> kernel frame buffer driver.
> 
> hth
> Niels
> 
> 
> Mirko Vogt wrote:
> > Hey,
> >
> > I wanna run DirectFB on the "Ben NanoNote" by qi-hardware
> > (http://www.qi-hardware.com/products/ben-nanonote/) so I packaged the
> > library for the embedded distribution OpenWrt which I'm running on the
> > Ben.
> > Unfortunately running the shipped tools (e.g. dfbg) cause the device to
> > freeze reproducible:
> >
> > r...@openwrt:~# dfbg -c ffffff
> >
> >    ~~~~~~~~~~~~~~~~~~~~~~~~~~| DirectFB 1.4.2 |
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~
> >         (c) 2001-2009  The world wide DirectFB Open Source Community
> >         (c) 2000-2004  Convergence (integrated media) GmbH
> >       ----------------------------------------------------------------
> >
> > (*) DirectFB/Core: Single Application Core. (2009-10-08 01:40) 
> > (*) Direct/Thread: Started 'VT Switcher' (547) [CRITICAL OTHER/OTHER
> > 0/0] <2093056>...
> > (*) Direct/Thread: Started 'VT Flusher' (548) [DEFAULT OTHER/OTHER 0/0]
> > <2093056>...
> > (*) DirectFB/FBDev: Found 'JZ4740 FB' (ID 0) with frame buffer at
> > 0x00000000, 300k (MMIO 0x13050000, 64k)
> > (*) Direct/Thread: Started 'Keyboard Input' (549) [INPUT OTHER/OTHER
> > 0/0] <2093056>...
> > (*) DirectFB/Input: Keyboard 0.9 (directfb.org)
> > (*) DirectFB/Graphics: Generic Software Rasterizer 0.6 (directfb.org)
> > Connection to 192.168.1.1 closed.
> >
> > The display turns black and it does not react anymore at all (e.g. no
> > ICMP-responses, etc.)
> >
> > I know that's not much information - how to get some more useful debug
> > info?
> > How to start debugging such issues?
> >
> > Thanks a lot in advance!
> >
> > Regards
> >
> > mirko
> >
> >
> >
> >   
> 
> 




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