ulmen@laptop:~$ gdb sdljump 5736 GNU gdb 6.6-debian 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 "i486-linux-gnu"... (no debugging symbols found) Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1". Attaching to program: /usr/games/sdljump, process 5736 Reading symbols from /usr/lib/libSDL-1.2.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libSDL-1.2.so.0 Reading symbols from /lib/tls/i686/cmov/libpthread.so.0...(no debugging symbols found)...done. [Thread debugging using libthread_db enabled] [New Thread -1216653088 (LWP 5736)] [New Thread -1230996592 (LWP 5738)] [New Thread -1217205360 (LWP 5737)] Loaded symbols for /lib/tls/i686/cmov/libpthread.so.0 Reading symbols from /usr/lib/libGLU.so.1... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libGLU.so.1 Reading symbols from /usr/lib/libGL.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libGL.so.1 Reading symbols from /lib/tls/i686/cmov/libm.so.6... (no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libm.so.6 Reading symbols from /usr/lib/libSDL_image-1.2.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libSDL_image-1.2.so.0 Reading symbols from /usr/lib/libSDL_mixer-1.2.so.0... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libSDL_mixer-1.2.so.0 Reading symbols from /lib/tls/i686/cmov/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libc.so.6 Reading symbols from /usr/lib/libasound.so.2... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libasound.so.2 Reading symbols from /lib/tls/i686/cmov/libdl.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libdl.so.2 Reading symbols from /usr/lib/libdirectfb-0.9.so.25... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libdirectfb-0.9.so.25 Reading symbols from /usr/lib/libfusion-0.9.so.25...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libfusion-0.9.so.25 Reading symbols from /usr/lib/libdirect-0.9.so.25... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libdirect-0.9.so.25 Reading symbols from /lib/ld-linux.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/ld-linux.so.2 Reading symbols from /usr/lib/libstdc++.so.6... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libstdc++.so.6 Reading symbols from /lib/libgcc_s.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/libgcc_s.so.1 Reading symbols from /usr/lib/libX11.so.6... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libX11.so.6 Reading symbols from /usr/lib/libXext.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXext.so.6 Reading symbols from /usr/lib/libXxf86vm.so.1... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libXxf86vm.so.1 Reading symbols from /usr/lib/libdrm.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libdrm.so.2 Reading symbols from /usr/lib/libpng12.so.0... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libpng12.so.0 Reading symbols from /usr/lib/libz.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libz.so.1 Reading symbols from /usr/lib/libvorbisfile.so.3... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libvorbisfile.so.3 Reading symbols from /usr/lib/libvorbis.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libvorbis.so.0 Reading symbols from /usr/lib/libogg.so.0... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libogg.so.0 Reading symbols from /usr/lib/libsmpeg-0.4.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libsmpeg-0.4.so.0 Reading symbols from /usr/lib/libXau.so.6... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libXau.so.6 Reading symbols from /usr/lib/libXdmcp.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXdmcp.so.6 Reading symbols from /usr/lib/libXrender.so.1... (no debugging symbols found)...done. Loaded symbols for /usr/lib/libXrender.so.1 Reading symbols from /usr/lib/libXrandr.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXrandr.so.2 Reading symbols from /usr/lib/libXcursor.so.1... ---Type to continue, or q to quit--- (no debugging symbols found)...done. Loaded symbols for /usr/lib/libXcursor.so.1 Reading symbols from /usr/lib/libXfixes.so.3...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXfixes.so.3 Reading symbols from /lib/tls/i686/cmov/libnss_compat.so.2... (no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libnss_compat.so.2 Reading symbols from /lib/tls/i686/cmov/libnsl.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libnsl.so.1 Reading symbols from /lib/tls/i686/cmov/libnss_nis.so.2... (no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libnss_nis.so.2 Reading symbols from /lib/tls/i686/cmov/libnss_files.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libnss_files.so.2 Reading symbols from /usr/lib/gconv/ISO8859-1.so... (no debugging symbols found)...done. Loaded symbols for /usr/lib/gconv/ISO8859-1.so (no debugging symbols found) 0xffffe410 in __kernel_vsyscall () (gdb) bt #0 0xffffe410 in __kernel_vsyscall () #1 0xb7e9bdae in __lll_mutex_lock_wait () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb7e97ac4 in _L_mutex_lock_241 () from /lib/tls/i686/cmov/libpthread.so.0 #3 0xb7e97622 in pthread_mutex_lock () from /lib/tls/i686/cmov/libpthread.so.0 #4 0xb7f022e1 in SDL_mutexP () from /usr/lib/libSDL-1.2.so.0 #5 0xb7eae3af in ?? () from /usr/lib/libSDL-1.2.so.0 #6 0x08092de0 in ?? () #7 0xb7f0c820 in ?? () from /usr/lib/libSDL-1.2.so.0 #8 0xbfd00ec8 in ?? () #9 0x0000001e in ?? () #10 0xb7f0c820 in ?? () from /usr/lib/libSDL-1.2.so.0 #11 0xbfd00ff0 in ?? () #12 0xbfd00e28 in ?? () #13 0xb7eadf58 in SDL_LockAudio () from /usr/lib/libSDL-1.2.so.0 Backtrace stopped: frame did not save the PC (gdb)