[Jack-Devel] Segmentation fault using jackctl_server_start

Hey all,
I'm developing an application using JACK (alsa as backend).
After setting all parameters, the jackctl_server_start function is being
called, the JACK outputs:

no message buffer overruns
no message buffer overruns
JACK server starting in realtime mode with priority 10
creating alsa driver ... hw:0,0|hw:0,0|512|2|44100|0|2|nomon|swmeter|-|32bit
Using ALSA driver HDA-Intel running on card 0 - HDA Intel at 0xfe020000 irq
49
configuring for 44100Hz, period = 512 frames (11.6 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 32bit integer little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 32bit integer little-endian
ALSA: use 2 periods for playback
Segmentation fault <-----------------------

Running through gdb:

[New Thread 0xb7da9b70 (LWP 12279)]
no message buffer overruns
[Thread 0xb7da9b70 (LWP 12279) exited]
[New Thread 0xb7da9b70 (LWP 12280)]
no message buffer overruns
[Thread 0xb7da9b70 (LWP 12280) exited]
JACK server starting in realtime mode with priority 10
[New Thread 0xb7fc8b70 (LWP 12281)]
creating alsa driver ... hw:0,0|hw:0,0|512|2|44100|0|2|nomon|swmeter|-|32bit
Using ALSA driver HDA-Intel running on card 0 - HDA Intel at 0xfe020000 irq
49
configuring for 44100Hz, period = 512 frames (11.6 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 32bit integer little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 32bit integer little-endian
ALSA: use 2 periods for playback
[New Thread 0xb7f47b70 (LWP 12282)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb7f47b70 (LWP 12282)]
0x0048445f in Jack::JackThreadedDriver::Init() () from
/usr/local/lib/libjackserver.so.0
(gdb) where
#0  0x0048445f in Jack::JackThreadedDriver::Init() () from
/usr/local/lib/libjackserver.so.0
#1  0x00476973 in Jack::JackPosixThread::ThreadHandler(void*) () from
/usr/local/lib/libjackserver.so.0
#2  0x0080ce99 in start_thread (arg=0xb7f47b70) at pthread_create.c:304
#3  0x0077673e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

When I run qjackctl or through terminal "jackd -R -d alsa -d hw:0,0 -r 44100
-p 512 -o 2" server works as it should:

no message buffer overruns
no message buffer overruns
JACK server starting in realtime mode with priority 10
creating alsa driver ... hw:0,0|hw:0,0|512|2|44100|0|2|nomon|swmeter|-|32bit
Using ALSA driver HDA-Intel running on card 0 - HDA Intel at 0xfe020000 irq
49
configuring for 44100Hz, period = 512 frames (11.6 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 32bit integer little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 32bit integer little-endian
ALSA: use 2 periods for playback

Exactly the same output and parameters to the server.

I would appreciate your help!

Royi


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