Running zynaddsubfx on Thinkpad Z61m, Intel Core 2 Duo with 1.5Gb RAM. After a short time of doing anything, even hitting a few of the onscreen keys, the programme segfaults and dies. Output, when run from command line: ZynAddSubFX - Copyright (c) 2002-2005 Nasca Octavian Paul Compiled: Feb 15 2007 13:06:39 This program is free software (GNU GPL v.2) and it comes with ABSOLUTELY NO WARRANTY. Try 'zynaddsubfx --help' for command-line options. Sound Buffer Size = 256 samples Internal latency = 5.8 ms ADsynth Oscil.Size = 512 samples Internal SampleRate = 44100 Jack Output SampleRate= 44100 Segmentation fault emerge --info: Portage 2.1.2-r9 (default-linux/amd64/2006.1, gcc-4.1.1, glibc-2.5-r0, 2.6.20-gentoo x86_64) ================================================================= System uname: 2.6.20-gentoo x86_64 Intel(R) Core(TM)2 CPU T5600 @ 1.83GHz Gentoo Base System release 1.12.8 Timestamp of tree: Mon, 12 Feb 2007 15:59:01 +0000 dev-java/java-config: 1.3.7, 2.0.31 dev-lang/python: 2.4.3-r4 dev-python/pycrypto: 2.0.1-r5 sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.61 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.16.1-r3 sys-devel/gcc-config: 1.3.14 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.17-r1 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=nocona -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-march=nocona -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" LINGUAS="en en_GB en_AU" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://prospero/gentoo-portage" USE="X alsa amd64 berkdb bitmap-fonts bzip2 cdparanoia cdrom cli cracklib crypt css cups dlloader dri dvd dvdread flac fortran gdbm gpm gtk2 hdaps iconv imagemagick isdnlog jack java jpeg kde ladspa libg++ libsamplerate midi mp3 mpeg ncurses nls nptl nptlonly ogg opengl pam pcre perl png ppds pppd python qt3 readline reflection session spl ssl svg tcpd tiff truetype truetype-fonts type1-fonts udev unicode utf8 v4l vorbis xml xml2 xorg xv xvid zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en en_GB en_AU" USERLAND="GNU" VIDEO_CARDS="fglrx" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Post a backtrace and reopen then. http://www.gentoo.org/proj/en/qa/backtraces.xml
smith@brutus ~ $ gdb /usr/bin/zynaddsubfx GNU gdb 6.6 Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "x86_64-pc-linux-gnu"... Using host libthread_db library "/lib/libthread_db.so.1". (gdb) run Starting program: /usr/bin/zynaddsubfx [Thread debugging using libthread_db enabled] [New Thread 47597663481472 (LWP 3233)] ZynAddSubFX - Copyright (c) 2002-2005 Nasca Octavian Paul Compiled: Feb 16 2007 07:36:22 This program is free software (GNU GPL v.2) and it comes with ABSOLUTELY NO WARRANTY. Try 'zynaddsubfx --help' for command-line options. Sound Buffer Size = 256 samples Internal latency = 5.8 ms ADsynth Oscil.Size = 512 samples Internal SampleRate = 44100 Jack Output SampleRate= 44100 [New Thread 1082132800 (LWP 3236)] [New Thread 1090525504 (LWP 3237)] [New Thread 1098918208 (LWP 3238)] [New Thread 1107310912 (LWP 3239)] Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 1098918208 (LWP 3238)] 0x00002b4a303cf0a9 in pthread_mutex_lock () from /lib/libpthread.so.0
Further observation: jackd also dies at point of failure. (This was not observed when running outside of gdb.)
I can experience a similar issue, I'll try to dig in deeper.
Smiffy, are you running jack in realtime priority? (i.e. -R)
I can confirm this on version 2.2.1-r3, without jack support: USE="alsa oss -jack"
(In reply to comment #5) > Smiffy, are you running jack in realtime priority? (i.e. -R) > I haven't tried to use any audio for a while - I will get this set up again and test as soon as I have spare time.
btw, where's the backtrace? Diego, can you post a backtrace if you have the issue too?
(In reply to comment #5) > Smiffy, are you running jack in realtime priority? (i.e. -R) > Finally got some time to "play" with my machine - problem occurs with jackd running with and without realtime. I'll have to read that backtrace documentation again - I though that what I had posted in comment #2 _was_ the backtrace.
Created attachment 139073 [details] Backtrace Programme built with these CFLAGS: CFLAGS="-march=nocona -O2 -pipe -ggdb"
Created attachment 152929 [details, diff] Fixed SIGSEGV on Virtual Keyboard (64 bits arch)
Does the removal of that last patch mean that this wasn't fixed after all? I'm confused...
Created attachment 153023 [details, diff] Fix SIGSEGV on 64-bits arch. Sorry for confusion I have very bad connection at home, and could not re-submit correct patch. The previous had a typo. This is quite the same patch as as found here (http://sourceforge.net/mailarchive/forum.php?thread_name=8e4fc8270709071938g5eab384cjcfb61f00e954376c%40mail.gmail.com&forum_name=zynaddsubfx-user) but better ;D (as it does not even try to access 'un-wanted' memory.
I have finally tested this patch. If audio is routed directly to OSS/Alsa, it works fine. However, if the output is changed to work with Jack, it still segfaults in the same way as before.
should be fixed in 2.4.1
