- chuck-dev - lists.cs.princeton.edu

segfaults galore
by Niklas Werner 29 Jul '04

29 Jul '04

Hi all, I tried to run chuck (cvs from just an hour ago) in --loop mode. I can then add shreds, but if I try to remove one, chuck crashes: chuck --srate44100 --loop [chuck](VM): sporking incoming shred: 1... [chuck](VM): sporking incoming shred: 2... Segmentation fault the commands leading to this were: nick@detritus ~/build/chuck_dev/examples $ chuck + moe.ck nick@detritus ~/build/chuck_dev/examples $ chuck + larry.ck nick@detritus ~/build/chuck_dev/examples $ chuck - 2 (gdb) r --srate44100 --loop Starting program: /usr/bin/chuck --srate44100 --loop warning: Unable to find dynamic linker breakpoint function. GDB will be unable to debug shared library initializers and track explicitly loaded dynamic code. Program received signal SIG32, Real-time event 32. 0x0fc292f4 in pthread_getconcurrency () from /lib/libpthread.so.0 (gdb) c Continuing. Program received signal SIG32, Real-time event 32. 0x0fc292f4 in pthread_getconcurrency () from /lib/libpthread.so.0 (gdb) c Continuing. [chuck](VM): sporking incoming shred: 1... [chuck](VM): sporking incoming shred: 2... Program received signal SIGSEGV, Segmentation fault. 0x0fef277c in mallopt () from /lib/libc.so.6 (gdb) bt #0 0x0fef277c in mallopt () from /lib/libc.so.6 #1 0x0ffbc5ec in ?? () from /lib/libc.so.6 (gdb) hmmm, is there a double call to free() going on or anything similar? (Oh, and gentoo on Powerbook Aluminium) Cheers, Niklas -- Computer Music PhD-student University of Waikato Hamilton New Zealand

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Intro + question
by Bert Schiettecatte 27 Jul '04

27 Jul '04

Hi all, I'm new to the chuck list. I'm Bert Schiettecatte, and I'm a researcher in musical interfaces currently working in Belgium at the university of Brussels. I was at CCRMA a few years ago for a master of arts in music, science and tech. where some of you might have spotted me. Anyway, I have a question: I'd like to try to port chuck to a TI hardware DSP platform.. Any suggestions on how to do it? Thanks, bert

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coding suggestions
by Niklas Werner 26 Jul '04

26 Jul '04

Hi all, I'd like to suggest the following: use GNU getopt() for the command line options (--optionArgument is just greatly confusing: --option Argument is so much nicer, and you get rid of all the else if() in chuck_main. (plus I can offer my help in converting chuck_main to getopt(), if you want me to go ahead) Your next_power_2() function seems to waste loads of cycles, although this doesn't really matter, as it is only used at startup, but wouldn't that be a nice feature for the language anyway? Try: /* Thanks to music-dsp mailing-list */ inline unsigned nextPowerOfTwo (unsigned n) { unsigned prevN; for (prevN = n; n &= n-1; prevN = n) ; return (prevN * 2); } much faster... Cheers, Niklas -- Computer Music PhD-student University of Waikato Hamilton New Zealand

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post from niklas
by Ge Wang 26 Jul '04

26 Jul '04

redirected from chuck list... More info: nick@detritus ~ $ ldd /usr/bin/chuck libasound.so.2 => /usr/lib/libasound.so.2 (0x0e910000) libstdc++.so.6 => /usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.4.1/libstdc++.so.6 (0x00cb0000) libdl.so.2 => /lib/libdl.so.2 (0x0fdd0000) libm.so.6 => /lib/libm.so.6 (0x0fdf0000) libc.so.6 => /lib/libc.so.6 (0x0fe80000) libpthread.so.0 => /lib/libpthread.so.0 (0x0fc20000) libgcc_s.so.1 => /usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.4.1/libgcc_s.so.1 (0x0fa10000) /lib/ld.so.1 => /lib/ld.so.1 (0x0ffd0000) attached strace log. from the same commands. Cheers, Niklas -- Computer Music PhD-student University of Waikato Hamilton New Zealand

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Re: [chuck-dev] gain ugen segmentation fault
by Ge Wang 12 Jul '04

12 Jul '04

Let's move this back to chuck-dev... Ge! On Jul 12, 2004, at 1:22 AM, n++k wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Yes, sorry about that, you need to type 'c <enter>' a few times before > getting > to the real crash. > > /wrote Niklas Werner <bergtroll(a)gmx.li> [Mon, 12 Jul 2004 15:03:25 > +1200] > > |On Mon, 12 Jul 2004 15:25, Matthew Shanley wrote: > |> Sorry for the delay, I had to go out of town for the weekend. > | > |> Program received signal SIG32, Real-time event 32. > |> 0x402f79f4 in pthread_getconcurrency () from /lib/libpthread.so.0 > |> > |> > |> Is this helpful? > |not really. > |You might want to type "where" or "bt" after the crash, as Nicolas > already > |wrote... This shows the whole trace of the function calls leading to > the > |crash. > | > |I can run your example without worries on my gentoo machine, btw. > (ppc) > | > |random ideas: > |- recent compiler upgrade and glibc not re-emerged? > |- different compiler used for alsa/kernel and chuck? > | > |(c++ can be very bitchy about different binary interfaces...) > | > |Cheers, > | > |Niklas > |-- > |Computer Music PhD-student > |University of Waikato > |Hamilton > |New Zealand > |_______________________________________________ > |chuck mailing list > |chuck(a)lists.cs.princeton.edu > |https://lists.cs.princeton.edu/mailman/listinfo/chuck > | > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.2.4 (GNU/Linux) > > iD8DBQFA8iAtFNuIde4eJFQRAu/XAKC/9LTm+TKVyFsE/1HMDiUC68WCIwCgn/rd > sp97NCpPS6Rxrv4few1OWoU= > =+4sk > -----END PGP SIGNATURE----- > _______________________________________________ > chuck mailing list > chuck(a)lists.cs.princeton.edu > https://lists.cs.princeton.edu/mailman/listinfo/chuck

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compile error gcc-3.4.1
by Niklas Werner 12 Jul '04

12 Jul '04

Hi => all, I can't get chuck to compile using gcc-3.4.1: Reading specs from /usr/lib/gcc/powerpc-unknown-linux-gnu/3.4.1/specs Configured with: /var/tmp/portage/gcc-3.4.1/work/gcc-3.4.1/configure --prefix=/usr --bindir=/usr/powerpc-unknown-linux-gnu/gcc-bin/3.4 --includedir=/usr/lib/gcc/powerpc-unknown-linux-gnu/3.4.1/include --datadir=/usr/share/gcc-data/powerpc-unknown-linux-gnu/3.4 --mandir=/usr/share/gcc-data/powerpc-unknown-linux-gnu/3.4/man --infodir=/usr/share/gcc-data/powerpc-unknown-linux-gnu/3.4/info --enable-shared --host=powerpc-unknown-linux-gnu --target=powerpc-unknown-linux-gnu --with-system-zlib --enable-languages=c,c++,f77 --enable-threads=posix --enable-long-long --disable-checking --disable-libunwind-exceptions --enable-cstdio=stdio --enable-version-specific-runtime-libs --with-gxx-include-dir=/usr/lib/gcc/powerpc-unknown-linux-gnu/3.4.1/include/g++-v3 --with-local-prefix=/usr/local --disable-werror --enable-shared --enable-nls --without-included-gettext --disable-multilib --enable-__cxa_atexit --enable-clocale=gnu Thread model: posix gcc version 3.4.1 (Gentoo Linux 3.4.1, ssp-3.4-2, pie-8.7.6.3) error as follows: gcc -D__LINUX_ALSA__ -O3 -g -c chuck_instr.cpp chuck_instr.cpp: In member function `virtual void Chuck_Instr_Lt_single::execute(Chuck_VM*, Chuck_VM_Shred*)': chuck_instr.cpp:1337: error: ISO C++ forbids cast to non-reference type used as lvalue and so on for lines 1337, 1365, 1379, 1392, 1406, 1420, 1434, 1448, 1462, 1475, 1489 sorry, my (almost non.existing) c++-knowledge doesn't suffice to debug this. compiler bug or real standard violation? gcc-3.3.4 compiles it cleanly, but it uses another libstdc++ ... Cheers, Niklas -- Computer Music PhD-student University of Waikato Hamilton New Zealand

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read only CVS access
by Ge Wang 12 Jul '04

12 Jul '04

you can access the chuck current dev repository in read-only mode: make sure your CVS_RSH environment variable is set to ssh cvs -d :ext:anon-chuck@cvs.cs.princeton.edu:/cvs checkout chuck_dev if you get prompted for password, just hit enter this should checkout chuck_dev into the current directory. src/ ckx/ - current chuck DLL's (including for GLucK, which Phil has been working on) examples/ notes/ - release notes the version number for the files are not accurate, we reset the thing a couple of times, but other stuff should be alright to go. let me know if you run into issues! Best, Ge!

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gain ugen segmentation fault
by Matthew Shanley 11 Jul '04

11 Jul '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all, I'm having problems with the gain ugen under 1.1.4.3. (Using the gain parameter of other ugens gives similar results.) Using it in any way produces "Segmentation fault". Here is some example code: ~ noise n => gain g => dac; ~ sinosc s => g; ~ .3 => g.gain; ~ while (true) { 100::ms => now; } I am running gentoo linux with alsa. Ge already said that he can't reproduce this under OS X or Redhat alsa, so perhaps i need to recompile ChucK or figure out something in my system that is broken. If anyone has any idea what might be going on or where to start looking myself, please let me know. Cheers matt - -- Matthew Shanley E-mail: mshanley(a)alum.rpi.edu GnuPG Public Key ID : 0x5D3C2489 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFA7qI12B97+F08JIkRAkQnAKCP2r2yj6t3KfRVmdT17nnc7O+Y/ACfVa/Y PiuTBxA2mvp0T9MkFSMRc7A= =mcjI -----END PGP SIGNATURE-----

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greetings!
by Ge Wang 08 Jul '04

08 Jul '04

Dear All, Welcome to the ChucK Developers' Mailing List! Thank you for being on this list - it is likely to experience bursty traffic, so if you like, you can enable digest mode to receive posts in batches: https://lists.cs.princeton.edu/mailman/listinfo/chuck-dev Best, Perry and Ge!

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