[Fluxus] start-audio crashes

[Stefano Sabatini]

On date Tuesday 2009-06-02 14:09:14 +0200, Stefano Sabatini wrote:
> Hi all,
> 
> I'm following the fluxus-documentation tutorial, and I can't get
> start-audio working without to crash.
> 
> I'm running jackd and a readable client connected to jack with ID 
> metro1:120_bpm and invoking the command:
> (start-audio "metro1:120_bpm" 256 44100)
> 
> which causes fluxus to crash every time, while the metro readable
> client got zombified:
> 
> stefano at geppetto ~/s/S/C/libjack> metro --name metro1 -b 120 -d 0.2 -f 4000
> jack_client_thread zombified - exiting from JACK
> 
> and this is fluxus bt:
> (gdb) bt
> #0  0xb7f9f424 in __kernel_vsyscall ()
> #1  0xb747e640 in raise () from /lib/i686/cmov/libc.so.6
> #2  0xb7480018 in abort () from /lib/i686/cmov/libc.so.6
> #3  0xb7df9375 in fault_handler () from /usr/lib/libmzscheme3m-4.0.1.so
> #4  <signal handler called>
> #5  0xb7b36d7f in jack_thread_wait () from /usr/lib/libjack.so.0
> #6  0xb7b36f9e in ?? () from /usr/lib/libjack.so.0
> #7  0x0866aba0 in ?? ()
> #8  0x00000000 in ?? ()
> 
> I'm using fluxus git of the day, but I was getting the very same
> problem with an old version (December 2008) of fluxus.
> 
> Suggestions are welcome, the crash seems rooted in libmzscheme3m, so
> maybe it could depend by that lib version.
> 
> Any suggestion is welcome.

I forgot to say that I'm using plt scheme 4.0.1-2 in Debian.

As an added rebus, if I try to debug fluxus with gdb it always crashes
immediately:

(gdb) r
[Thread debugging using libthread_db enabled]
[New Thread 0xb73668e0 (LWP 11199)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb73668e0 (LWP 11199)]
0xb7cc362f in ?? () from /usr/lib/libmzscheme3m-4.0.1.so

This only happens when using the debugger to run the process.

Regards.