hi, 

I can confirm this issue on Ubuntu 15.04 with jackd2 1.9.10 with and pd from [5fd49d]

Here is a backtrace : 

~~~~

Program received signal SIGSEGV, Segmentation fault.

0x000000000050eda8 in jack_open_audio ()

(gdb) thread apply all bt 

Thread 3 (Thread 0x7ffff7fba700 (LWP 5312)):

#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185

#1  0x00007ffff699e7fc in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0

#2  0x00007ffff6990988 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0

#3  0x00007ffff699d180 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0

#4  0x00007ffff739a6aa in start_thread (arg=0x7ffff7fba700) at pthread_create.c:333

#5  0x00007ffff6ecbeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7ffff7f39700 (LWP 5313)):

#0  0x00007ffff73a2e0d in read () at ../sysdeps/unix/syscall-template.S:81

#1  0x00007ffff699f075 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0

#2  0x00007ffff69a1aeb in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0

#3  0x00007ffff699d180 in ?? () from /usr/lib/x86_64-linux-gnu/libjack.so.0

#4  0x00007ffff739a6aa in start_thread (arg=0x7ffff7f39700) at pthread_create.c:333

#5  0x00007ffff6ecbeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ffff7fbc740 (LWP 5305)):

#0  0x000000000050eda8 in jack_open_audio ()

#1  0x0000000000490e84 in sys_reopen_audio ()

#2  0x0000000000491ca1 in glob_audio_setapi ()

#3  0x000000000047214c in pd_typedmess ()

#4  0x000000000047b3f7 in binbuf_eval ()

#5  0x00000000004863bc in socketreceiver_read ()

#6  0x0000000000485625 in sys_domicrosleep.constprop ()

#7  0x0000000000481e8e in m_mainloop ()

#8  0x00007ffff6de5a40 in __libc_start_main (main=0x412610 <main>, argc=3, argv=0x7fffffffdde8, init=<optimized out>, 

    fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffddd8) at libc-start.c:289

#9  0x0000000000412649 in _start ()

~~~~

--
do it yourself                      
http://antoine.villeret.free.fr

2015-03-31 1:46 GMT+02:00 Miller Puckette <msp@ucsd.edu>:

THanks for the detailed description - I'll see if I can recreate this.

Miller

On Mon, Mar 30, 2015 at 12:49:03PM +0200, mylists@t-online.de wrote:
> Hi everyone!
>
> I'm experiencing problems with pd-0.46-6 and jack:
>
> I built and installed pd with:
>
> sudo apt-get build-dep puredata
>
> make -f makefile.gnu JACK=true
>
> sudo make install -f makefile.gnu
>
>
> Trying to start pd (the jack server is running fine) with
>
> pd -jack
>
> pd segfaults immediately. Did I miss something?
>
>
> I'm on Ubuntu 14.04 64bit, using jack2 1.9.10
>
> Thanks for any hints!
>
> /phil
>
>
>
>
>
>
>
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