Hi all,
Recently I've tried, to build and run devel branch of pure-data, but encountered problems, that just can't use pd. But let's cut to the chase. Shortly speaking - putting some tilde object (like dac~, loop~, *~ etc.) and turning on dsp, causes pd to crash (and program throws this on the console:
Pd: signal 4 pd_gui: pd process exited
Pure-data behaviour can be split in to 2 situations depending on when audio processing was enabled.
Scenario 1. Right after running pd, I put a dac~ object (I've also tried with loop~, tabread~, sig~, osc~). I can move it, select/deselect it, and nothing happens. Then I turn on dsp, and pd exits.
Scenario 2. Right after running pd I turn on dsp. Then create new patch and put dac~ (also tried with loop~, sig~, *~, osc~) and it works to the moment where I deselect that object, select it (I can even move it), and deselect it again. I can throw as many tilde objects as I like to, but selecting any previously created object, and then deselecting it causes pd to exit. Also connecting audio objects (even if none of them is selected), ends that same way (but connecting non-audio objects to audio objects works fine). When I create at least one ~ object and turn _off_ dsp nothing happens, but the turning it on again causes crash.
I didn't encounter any problems when audio processing was off, or when it was on, but without use of any non-audio objects.
I build devel_0_37 without threaded soundfiler - I just did: ./configure --prefix=/usr/local/pd_dev --enable-debug
My system is Slackware 9.1 (kernel 2.6.5) with tcl/tk-8.4.4, gcc-3.2.3, alsa-1.0.3. I have Terratec DMX6fire card sitting in computer based on Athlon (thunderbird) processor.
I've also tried devel branch on windows - strangely ending with the same problem (I used msvc++ 7 to build pure-data).
Tim Blechmann suggested to debug pd in gdb. The backtrace after crash looks like this:
#0 0x080b2877 in sig_tilde_perf_sse_gcc () #1 0x08092065 in dsp_tick () at d_ugen.c:321
Does anyone have some ideas, about what's really happening, and most important how to avoid or fix this problem?
Thanks in advance.
cheers, Bart