Re: [fluid-dev] A MIDI file that causes fluidsynth to segfault

[Ken Restivo]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Wed, Feb 21, 2007 at 01:04:56PM -0700, Dave Serls wrote:
> On Wed, 21 Feb 2007 11:17:06 -0800
> Ken Restivo <address@hidden> wrote:
> 
> > Attached is a MIDI file that causes fluidsynth to segfault on my machine 
> > (Core Duo 1.66Ghz 2GM RAM, linux 2.8.19-rt15), jackd 102.20-1, fluidsynth 
> > 1.0.8.2006.12.24-2-SVN)
> > 
> > This is with no softsynths running except one fluidsynth instance, using 
> > the Steinway Grand soundfont (the 80MB one with all the crossfades). No 
> > other JACk apps running except qjackctl, and the only other ALSA app being 
> > arecordmidi-- that's it.
> > 
> > bFreeBoB ERR: Xrun on connection 1
> > cannot read event response from client [piano] (Connection reset by peer)
> > subgraph starting at qjackctl-3515 timed out (subgraph_wait_fd=12, status = 
> > 0, state = Finished)
> > subgraph starting at qjackctl-3515 timed out (subgraph_wait_fd=12, status = 
> > 0, state = Finished)
> > LibFreeBoB ERR: SLAVE XMT : Buffer underrun! 128 (0 / 224) (0 / 0 )
> > LibFreeBoB ERR: Xrun on connection 1
> > subgraph starting at qjackctl-3515 timed out (subgraph_wait_fd=12, status = 
> > 0, state = Finished)
> > cannot read event response from client [piano] (Connection reset by peer)
> > 
> > Yeah, I can understand an Xrun maybe, at the point where this happens the 
> > CPU usage is getting pretty high, like around 70% or so. But the entire 
> > fluidsynth losing control of its bladder and quitting? Seems extreme to me. 
> > The docs for the soundfont (from 2001) state that the font might give some 
> > crackles "on a slow CPU", but my current CPU would is faster than anything 
> > that was commercially available in 2001.
> > 
> > The noodling trailing off at the end of the file is me going, hello?, wait 
> > a minute, why is there no sound coming out? 
> > 
> > Makes me a sad panda.
> wst25fstein.sf2
>    Played successfully here via aplaymidi -> fluidsynth with wst25fstein.sf2 
> (some Steinway knockoff), with a few crackles.
>    Played first with the FluidGM percussive organ and it went into 'undead' 
> mode after I killed the aplaymidi process.
>    Just kept on looping unitl I killed fluidsynth.
> > 

Forgot to include the link. It is the 80MB Xfade version of this soundfont that 
makes fluidsynth segfault:
http://www.pianosounds.com/CD4.htm

I've not seen this with any other soundfont, but then again this is by far the 
largest I've used.

- -ken
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (GNU/Linux)

iD8DBQFF3KqNe8HF+6xeOIcRAlvGAJ0X0H2J9sqFoMcX73gF+9a79w/iGACeIgnq
vZitAvAdgHmDrjp0hxQcDhs=
=SU0n
-----END PGP SIGNATURE-----