Hi.
I create a simple patch with a dac~ and a csoundapi~ and connect the left outlet/inlet. When I turn on Pd audio processing, Pd disappears and I see some messages (using the -stderr flag).
I have both jackd and pd set up for realtime, and at pretty high priorities from the scripts I use to start them. My audio IRQ is higher than jack, which is higher than pd, which is higher than pd-gui. Pd works fine for other patches.

I compiled Csound5.06 on Linux, once with a bunch of options and once with just csoundapi~, replacing the first one.

Does this look like something for the Pd list? Csound is saying segmentation fault... My csd file is at http://www.badmuthahubbard.com/apitest.csd
Below is my Pd output while loading the .csd first and then turning on audio. Btw, it doesn't crash if I just put the csoundapi~ and dac~ objects in and turn on audio; only when they are connected.

Thanks.
-Chuckk

-----------------------------------------
csoundapi~ 1.01
A PD csound class using the Csound 5.06.2 API
(c) V Lazzarini, 2005-2007

Localisation of messages is disabled, using default language.
time resolution is 1000.000 ns
/home/chuckk/apitest.csd
/home/chuckk/apitest.csd
0dBFS level = 32768.0
Csound version 5.06 beta (float samples) Jul 18 2007
libsndfile-1.0.17
UnifiedCSD: /home/chuckk/apitest.csd
STARTING FILE
Creating orchestra
Creating score
orchname: /tmp/filex9OWtg.orc
scorename: /tmp/filejlUP5v.sco
orch compiler:
17 lines read

instr
11

Elapsed time at end of orchestra compile: real: 0.002s, CPU: 0.000s
sorting score ...
        ... done
Elapsed time at end of score sort: real: 0.003s, CPU: 0.000s
Csound version 5.06 beta (float samples) Jul 18 2007
displays suppressed
0dBFS level = 32768.0
orch now loaded
audio buffered in 256 sample-frame blocks
SECTION 1:
Csound tidy up: Segmentation fault
inactive allocs returned to freespace
end of score.              overall amps
      0.
      0.

           overall samples out of range



0 errors in performance
Elapsed time at end of performance: real: 11.255s, CPU: 0.410s
Removing temporary file /tmp/file6b2OHL.srt ...
Removing temporary file /tmp/filejlUP5v.sco ...
Removing temporary file /tmp/filex9OWtg.orc ...
socket receive error: Connection reset by peer (104)
subgraph starting at pure_data_0 timed out (subgraph_wait_fd=7, status = 0, state = Triggered)

--
http://www.badmuthahubbard.com