Hello (and thanks for chuck!), I'm having problems with chuck and libsndfile on linux (FC4, 2.6.14-0.10.rrt.rhfc4.ccrma, libsndfile version 1.0.11-1.rhfc4.ccrma). It crashes 90% of the time when trying to the load the example data files in the "otk_0x.ck" series with the following message: User defined signal 2. In src/util_sndfile.h, it looks like it's expecting version 1.0.10. So, that could certainly be the problem: ... #define PACKAGE "libsndfile" #define PACKAGE_BUGREPORT "erikd@mega-nerd.com" #define PACKAGE_NAME "libsndfile" #define PACKAGE_STRING "libsndfile 1.0.10" #define PACKAGE_TARNAME "libsndfile" #define PACKAGE_VERSION "1.0.10" ... I haven't tried installing 1.0.10 yet (its not in my distribution), but I tried upgrading to the latest FC4 version (1.0.11.3) with no luck. -scott BTW-- Here's the stack trace in debug-mode: ----------------------------------------------------------------------------------------------------------------------- (gdb) run /home/jsdavids/chuck/examples/otf_04.ck /home/jsdavids/chuck/examples/otf_03.ck /home/jsdavids/chuck/examples/otf_02.ck Starting program: /home/jsdavids/Desktop/new_installs/chuck-1.2.0.5/src/chuck /home/jsdavids/chuck/examples/otf_04.ck /home/jsdavids/chuck/examples/otf_03.ck /home/jsdavids/chuck/examples/otf_02.ck Reading symbols from shared object read from target memory...done. Loaded system supplied DSO at 0xffffe000 [Thread debugging using libthread_db enabled] [New Thread -1208961344 (LWP 5945)] [New Thread -1208964176 (LWP 5946)] [New Thread -1217487952 (LWP 5947)] [New Thread -1225880656 (LWP 5948)] Program received signal SIGUSR2, User defined signal 2. [Switching to Thread -1225880656 (LWP 5948)] 0xffffe410 in __kernel_vsyscall () (gdb) bt #0 0xffffe410 in __kernel_vsyscall () #1 0x48b454bb in __read_nocancel () from /lib/libc.so.6 #2 0xb7f17e69 in sf_open () from /usr/lib/libsndfile.so.1 #3 0xb7f1604e in sf_open () from /usr/lib/libsndfile.so.1 #4 0xb7f1656b in sf_open () from /usr/lib/libsndfile.so.1 #5 0xb7f140c6 in sf_command () from /usr/lib/libsndfile.so.1 #6 0xb7f151af in sf_open () from /usr/lib/libsndfile.so.1 #7 0x0811982d in sndbuf_ctrl_read (SELF=0x8385b00, ARGS=0x835860c, RETURN=0xb6ee72d4) at ugen_xxx.cpp:1939 #8 0x0805fe5b in Chuck_Instr_Func_Call_Member::execute (this=0x8358090, vm=0x82174b8, shred=0x8358210) at chuck_instr.cpp:2192 #9 0x08059002 in Chuck_VM::compute (this=0x82174b8) at chuck_vm.cpp:1416 #10 0x080590cf in Chuck_VM::run (this=0x82174b8, num_samps=256) at chuck_vm.cpp:650 #11 0x080ba157 in Digitalio::cb2 (buffer=0x83295a0 "", buffer_size=256, user_data=0x82174b8) at digiio_rtaudio.cpp:635 #12 0x080ca54f in RtApiJack::callbackEvent (this=0x830b180, nframes=256) at rtaudio.cpp:3325 #13 0x080ca698 in jackCallbackHandler (nframes=256, infoPointer=0x830b5f8) at rtaudio.cpp:2862 #14 0x4a594e01 in jack_client_close () from /usr/lib/libjack.so.0 #15 0xb6ee741b in ?? () #16 0x4a59b21b in ?? () from /usr/lib/libjack.so.0 #17 0x08328560 in ?? () #18 0x00000000 in ?? () (gdb) down Bottom (i.e., innermost) frame selected; you cannot go down. (gdb) up #1 0x48b454bb in __read_nocancel () from /lib/libc.so.6 (gdb) info frame Stack level 1, frame at 0xb6ee7040: eip = 0x48b454bb in __read_nocancel; saved eip 0xb7f17e69 called by frame at 0xb6ee7080, caller of frame at 0xb6ee7034 Arglist at 0xb6ee7034, args: Locals at 0xb6ee7034, Previous frame's sp is 0xb6ee7040 Saved registers: ebx at 0xb6ee7034, ebp at 0xb6ee7024, eip at 0xb6ee703c (gdb) up #2 0xb7f17e69 in sf_open () from /usr/lib/libsndfile.so.1 (gdb) info frame Stack level 2, frame at 0xb6ee7080: eip = 0xb7f17e69 in sf_open; saved eip 0xb7f1604e called by frame at 0xb6ee70c0, caller of frame at 0xb6ee7040 Arglist at 0xb6ee7078, args: Locals at 0xb6ee7078, Previous frame's sp is 0xb6ee7080 Saved registers: ebx at 0xb6ee706c, ebp at 0xb6ee7078, esi at 0xb6ee7070, edi at 0xb6ee7074, eip at 0xb6ee707c (gdb) frame #2 0xb7f17e69 in sf_open () from /usr/lib/libsndfile.so.1 (gdb) down #1 0x48b454bb in __read_nocancel () from /lib/libc.so.6 (gdb) down #0 0xffffe410 in __kernel_vsyscall () (gdb) info frame Stack level 0, frame at 0xb6ee7034: eip = 0xffffe410 in __kernel_vsyscall; saved eip 0x48b454bb called by frame at 0xb6ee7040 Arglist at 0xb6ee702c, args: Locals at 0xb6ee702c, Previous frame's sp is 0xb6ee7034 Saved registers: ebp at 0xb6ee7024, eip at 0xb6ee7030 -- Scott Davidson jsd_290@fastmail.fm -- http://www.fastmail.fm - I mean, what is it about a decent email service?