[MPlayer-cvslog] r35203 - in trunk/libmpcodecs: vf_delogo.c vf_unsharp.c

[Reimar Döffinger]

On Thu, Sep 20, 2012 at 12:26:30PM +0200, Ingo Brückl wrote:
> I wrote on Thu, 20 Sep 2012 12:01:58 +0200:
> 
> > Reimar Döffinger wrote on Thu, 20 Sep 2012 05:39:29 +0200:
> 
> >> But are you sure it is exactly this commit, and also that there is no
> >> other valgrind error before?
> 
> > There is no valgrind error before and the crash is totally reproducible.
> 
> Surprisingly, there is exactly the same valgrind output with the non-crashing
> build of mplayer, so the crash seems to appear at a different statement:
> 
>   Program received signal SIGSEGV, Segmentation fault.
>   0x0815bd46 in put_image ()
>   (gdb) bt
>   #0  0x0815bd46 in put_image ()
>   (gdb) x 0x0815bd46
>   0x815bd46 <put_image+54>:       0x8b3c4d8b
> 
> I don't have much experience with gdb (and my libs are stripped), so what
> should I do to provide useful information?

Libs don't matter, but please compile with debug info (either compile
with --enable-debug or add -g to cflags - either through manually
hacking config.mak or via --extra-cflags=-g2)
Also the documentation describes how to get some disassembly etc.
Also valgrind gives more information, if it crashes in gdb there it
really ought to crash at the same place in valgrind...