[Ffmpeg-devel] core dump when displaying ffmpeg help

[Michel Bardiaux]

Xavier Rodriguez (INEXBEE) wrote:
> Sorry, but I am not a C programmer and not really involved in ffmpeg
> developpement.
> 
> Here are some additionnal information around this issue.

Please repost the complete info together: command line, output, gdb trace.

And for a useful gdb trace, you need to run ffmpeg_g rather than ffmpeg.

> 
> *The gdb output:
> 
> (gdb) bt
> #0  0xff133218 in strlen () from /usr/lib/libc.so.1
> #1  0xff186520 in _doprnt () from /usr/lib/libc.so.1
> #2  0xff188414 in vfprintf () from /usr/lib/libc.so.1
> #3  0x00077e40 in av_vlog ()
> 
> 
> *The truss output:
> 
> -muxpreload seconds  set the initial demux-decode delay
> write(1, " - m u x p r e l o a d  ".., 56)      = 56
> AVCodecContextwrite(2, " A V C o d e c C o n t e".., 14)        = 14
>  AVOptions:
> write(2, "   A V O p t i o n s :\n", 12)        = 12
> -write(2, " -", 1)                              = 1
> bit_ratewrite(2, " b i t _ r a t e", 8)                 = 8
>          write(2, "                  ", 9)              = 9
>  write(2, "  ", 1)                              = 1
> Ewrite(2, " E", 1)                              = 1
> .write(2, " .", 1)                              = 1
> Vwrite(2, " V", 1)                              = 1
> Awrite(2, " A", 1)                              = 1
> .write(2, " .", 1)                              = 1
>     Incurred fault #6, FLTBOUNDS  %pc = 0xFF133218
>       siginfo: SIGSEGV SEGV_MAPERR addr=0x00000000
>     Received signal #11, SIGSEGV [default]
>       siginfo: SIGSEGV SEGV_MAPERR addr=0x00000000
>         *** process killed ***
> 
> 
> 
> 
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Michel Bardiaux
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