[fluid-dev] FluidSynth segfault on Fedora10 AMD64

[Irányossy Knoblauch Artúr]

> Does it also crash with other SoundFont files?
Yes.

>  If it is specific to that SoundFont, if you could send me it off list, that
> would be great.
It's not SoundFont specific, I've tried this with many soundfonts,
with the same result. The segfault occures using the
VintageDreamsWaves-v2.sf2 wich is boundled with the source code, but
it seems that the error happens not as frequently as with other
SoundFonts, like this one:
ikartur.atw.hu/emuaps8.sf2

> Another thing that might help is if you could run the following commands in
> gdb, once it crashes (assuming it crashes at the same line
> fluid_dsp_float.c:288):
> p voice->sample
> p voice->sample->data

Both FluidSynth version 1.0.9 and the latest SVN version crashes on
the same line.
The result is always the following, regardless the SoundFont I use:

(gdb) p voice->sample
$1 = (fluid_sample_t *) 0x0

(gdb) p voice->sample->data
Cannot access memory at address 0x40

> I know that there have been issues with 64 bit AMD systems and FluidSynth
> before, but I think they are fixed.  There could still be some problem
> specific to that platform though.

I'm not sure that this problem is AMD64 specific.
This problem is easily reproducable on my system playing back the
following MIDI file:
ikartur.atw.hu/01.mid.gz

If you try to play back this file with the following command,
FluidSynth should crash whitin a few minutes:

while true; do aplaymidi -p 130 01.mid ; done