. Thread 3 (process 8255): #0 0xb7be603f in snd_pcm_wait () from /usr/lib/libasound.so.2 #1 0xb7be6265 in ?? () from /usr/lib/libasound.so.2 #2 0xb7c2aad5 in ?? () from /usr/lib/libasound.so.2 #3 0xb7be0ae4 in snd_pcm_writei () from /usr/lib/libasound.so.2 #4 0xb7f21ec6 in ?? () from /usr/lib/libSDL-1.2.so.0 #5 0xb7ef0c75 in ?? () from /usr/lib/libSDL-1.2.so.0 #6 0xb7ef874b in ?? () from /usr/lib/libSDL-1.2.so.0 #7 0xb7f46d1d in ?? () from /usr/lib/libSDL-1.2.so.0 #8 0xb7aff4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #9 0xb7d473fe in clone () from /lib/tls/i686/cmov/libc.so.6 . Thread 2 (process 8248): #0 0xb7faa430 in __kernel_vsyscall () #1 0xb7d3ca77 in poll () from /lib/tls/i686/cmov/libc.so.6 #2 0xb782e7e2 in ?? () from /usr/lib/libpulse.so.0 #3 0xb781e540 in pa_mainloop_poll () from /usr/lib/libpulse.so.0 #4 0xb781fcc3 in pa_mainloop_iterate () from /usr/lib/libpulse.so.0 #5 0xb781fd94 in pa_mainloop_run () from /usr/lib/libpulse.so.0 #6 0xb782e593 in ?? () from /usr/lib/libpulse.so.0 #7 0xb7858072 in ?? () from /usr/lib/libpulse.so.0 #8 0xb7aff4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #9 0xb7d473fe in clone () from /lib/tls/i686/cmov/libc.so.6 . Thread 1 (process 8241): #0 0x081751cf in ?? () #1 0x08138e57 in ?? () #2 0x08138e72 in ?? () #3 0x08173f46 in ?? () #4 0x0817553b in ?? () #5 0x0813e7f0 in ?? () #6 0x081971ec in ?? () #7 0xb7c79775 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6 #8 0x0804a711 in ?? ()