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Re: [Spca50x-devs] spcagui - segmentation fault Kubuntu 7.10, Suse 10.3




On Jan 28, 2008 9:11 PM, Denver Gingerich <denver@xxxxxxxxxx> wrote:
>
> On Jan 28, 2008 1:23 PM, jansuz <jansuz@xxxxxxxxx> wrote:
> > I tried to use spcagui to check if I can change parameters to get better
> > picture.
> > The program was compiled without any problems on Kubuntu 7.10 amd64 and
> > 32 bit Suse 10.3. But when I try to run it it crashes with the
> > segmentation fault on both systems.
> > Can anybody suggest any reason and the way to solve the problem?
> >
> > Below is the output from the spcagui.
> >
> > Jansuz
> >
> > $ ./spcagui
> > SpcaGui version: 0.3.5 date: 18 September 2005
> > video device /dev/video0
> > Camera found: Labtec Webcam Pro
> > VIDIOCGPICT brightnes=32768 hue=0 color=0 contrast=32768
> > whiteness=0depth=24 palette=4
> > Bridge found: ZC301-2
> > Unable to find a StreamId !!
> > StreamId: 6 Unknow Camera
> > try palette 15 depth 12
> > Available  palette 15
> > try palette 3 depth 16
> > Available  palette 3
> > try palette 4 depth 24
> > Available  palette 4
> > try palette 5 depth 32
> > Available  palette 5
> > probe size in
> > Available Resolutions width 640  heigth 480
> > Available Resolutions width 384  heigth 288
> > Available Resolutions width 352  heigth 288
> > Available Resolutions width 320  heigth 240
> > Available Resolutions width 192  heigth 144
> > Available Resolutions width 176  heigth 144
> >   grabbing method default MMAP asked
> > VIDIOCGMBUF size 2457632  frames 2  offets[0]=0 offsets[1]=1228816
> > VIDIOCGPICT brightnes=32768 hue=0 color=0 contrast=32768
> > whiteness=0depth=12 palette=15
> > VIDIOCGPICT brightnes=32768 hue=0 color=0 contrast=32768
> > whiteness=0depth=12 palette=15
> > VIDIOCGPICT brightnes=32768 hue=0 color=0 contrast=32768
> > whiteness=0depth=12 palette=15
> > VIDIOCSPICT brightnes=32768 hue=0 color=0 contrast=32768
> > whiteness=0depth=12 palette=15
> > Segmentation fault (core dumped)
>
> Can you send a backtrace?  This can be done by doing the following:
>
> $ gdb ./spcagui
> ...
> (gdb) run
> ...
> [SIGSEGV]
> (gdb) backtrace
> [send us the stuff you get here]
>
> This will show us the functions that were being called at the time the
> segfault occurred.  I'm not sure if it's compiled with debugging
> symbols by default; if it is, then we may need you to re-send the

That should be "if it isn't [compiled with debugging symbols]".

> backtrace after compiling with -g, but just send us the backtrace for
> now.
>
> Denver
>

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