Someone

mpd       3767  0.0  0.5  74832 11164 ?        S    05:53   0:00 /usr/bin/mpd --no-create-db /etc/mpd-6600.conf
mpd       3936  0.0  0.4  80920  8804 ?        Sl   05:57   0:00  \_ /usr/bin/mpd --no-create-db /etc/mpd-6600.conf
mpd       3937  0.0  0.4  70676 10052 ?        S    05:57   0:00      \_ /usr/bin/mpd --no-create-db /etc/mpd-6600.conf

3767
#0  0x00002abace2dc8f3 in __select_nocancel () from /lib/libc.so.6
#1  0x0000000000423b31 in my_usleep (usec=<value optimized out>) at utils.c:71
#2  0x000000000041c6e5 in playerPause (fd=<value optimized out>)
    at player.c:280
#3  0x000000000041c74f in playerSetPause (fd=10, pause=1) at player.c:300
#4  0x000000000040ef21 in handlePause (fd=10,
    permission=<value optimized out>, argc=<value optimized out>,
    argv=0x7fffdfd11420) at command.c:253
#5  0x000000000040cf9f in processCommandInternal (fd=10,
    permission=0x2abacefa0084, commandString=<value optimized out>,
    cmdnode=0x0) at command.c:1288
#6  0x00000000004169f6 in doIOForInterfaces () at interface.c:354
#7  0x000000000041993a in main (argc=<value optimized out>,
    argv=0x7fffdfd12958) at main.c:447
#8  0x00002abace23d1f4 in __libc_start_main (main=0x4194e0 <main>, argc=3,
    ubp_av=0x7fffdfd12958, init=<value optimized out>,
    fini=<value optimized out>, rtld_fini=<value optimized out>,
    stack_end=0x7fffdfd12948) at libc-start.c:227
#9  0x0000000000407049 in _start ()

3936
#0  0x00002abacc83c989 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00002abacb3e69ab in pa_threaded_mainloop_wait (m=0x63ded0)
    at pulse/thread-mainloop.c:200
#2  0x00002abacb1cbfd8 in pa_simple_write (p=0xcb2200, data=0x63e0f8,
    length=5504, rerror=0x7fffdfd10a4c) at pulse/simple.c:268
#3  0x0000000000407b4f in pulse_playAudio (audioOutput=0xcaf3a0,
    playChunk=0x80 <Address 0x80 out of bounds>, size=1847)
    at audioOutputs/audioOutput_pulse.c:196
#4  0x000000000040bb51 in flushAudioBuffer () at audio.c:316
#5  0x000000000040bc94 in playAudio (
    playChunk=0x2abaced9dc98 "\003\001r\v\024\001�\v\024\001\023\f\030\001[\f;\001{\fD\001x\f1\001~\f\024\001k\f\035\001u\f,\001p\f:\001\202\f=\001\210\f@\001\234\f>\001\222\f=\001g\fA\001�\v?\001W\v*\001w\n\030\001\231\t\001\001\235\b�", size=1020) at audio.c:383
#6  0x0000000000410e94 in decode () at decode.c:639
#7  0x000000000041cb53 in playerPlay (fd=<value optimized out>,
    song=<value optimized out>) at player.c:150
#8  0x000000000041e84c in playPlaylistOrderNumber (fd=10, orderNum=0)
    at playlist.c:912
#9  0x000000000040ef7a in handlePlayId (fd=10,
    permission=<value optimized out>, argc=<value optimized out>,
    argv=0xffffffffffffffff) at command.c:225
#10 0x000000000040cf9f in processCommandInternal (fd=10,
    permission=0x2abacefa0084, commandString=<value optimized out>,
    cmdnode=0x0) at command.c:1288
#11 0x00000000004169f6 in doIOForInterfaces () at interface.c:354
#12 0x000000000041993a in main (argc=<value optimized out>,
    argv=0x7fffdfd12958) at main.c:447
#13 0x00002abace23d1f4 in __libc_start_main (main=0x4194e0 <main>, argc=3,
    ubp_av=0x7fffdfd12958, init=<value optimized out>,
    fini=<value optimized out>, rtld_fini=<value optimized out>,
    stack_end=0x7fffdfd12948) at libc-start.c:227
#14 0x0000000000407049 in _start ()

3937
#0  0x00002abace2dc8f3 in __select_nocancel () from /lib/libc.so.6
#1  0x0000000000423b31 in my_usleep (usec=<value optimized out>) at utils.c:71
#2  0x000000000041a86f in sendDataToOutputBuffer (cb=0x2abaced7c000,
    inStream=0x7fffdfd11300, dc=0x2abaced85e58, seekable=1,
    dataIn=0x7fffdfd0fa40, dataInLen=4080, time=12.4459133, bitRate=665,
    replayGainInfo=0x0) at outputBuffer.c:119
#3  0x0000000000409687 in flacWrite (dec=<value optimized out>,
    frame=0xadf790, buf=0xadf2b8, vdata=<value optimized out>)
    at inputPlugins/_flac_common.h:175
#4  0x00002abacd2ef785 in read_frame_ (decoder=0x63b2e0,
    got_a_frame=0x7fffdfd0fa0c, do_full_decode=1) at stream_decoder.c:2960
#5  0x00002abacd2f1daa in FLAC__stream_decoder_process_single (
    decoder=0x63b2e0) at stream_decoder.c:1060
#6  0x0000000000408fcc in flac_decode_internal (cb=0x2abaced7c000,
    dc=0x2abaced85e58, inStream=0x7fffdfd11300, is_ogg=<value optimized out>)
    at inputPlugins/flac_plugin.c:386
#7  0x000000000041154d in decode () at decode.c:398
#8  0x000000000041cb53 in playerPlay (fd=<value optimized out>,
    song=<value optimized out>) at player.c:150
#9  0x000000000041e84c in playPlaylistOrderNumber (fd=10, orderNum=0)
    at playlist.c:912
#10 0x000000000040ef7a in handlePlayId (fd=10,
    permission=<value optimized out>, argc=<value optimized out>,
    argv=0xffffffffffffffff) at command.c:225
#11 0x000000000040cf9f in processCommandInternal (fd=10,
    permission=0x2abacefa0084, commandString=<value optimized out>,
    cmdnode=0x0) at command.c:1288
#12 0x00000000004169f6 in doIOForInterfaces () at interface.c:354
#13 0x000000000041993a in main (argc=<value optimized out>,
    argv=0x7fffdfd12958) at main.c:447
#14 0x00002abace23d1f4 in __libc_start_main (main=0x4194e0 <main>, argc=3,
    ubp_av=0x7fffdfd12958, init=<value optimized out>,
    fini=<value optimized out>, rtld_fini=<value optimized out>,
    stack_end=0x7fffdfd12948) at libc-start.c:227
#15 0x0000000000407049 in _start ()