Thread 4 (Thread 0x7f96e15a9c80 (LWP 3808)):
#0  0x00007f96e0467296 in do_futex_wait.constprop () from /usr/lib/libpthread.so.0
#1  0x00007f96e0467354 in __new_sem_wait_slow.constprop.0 () from /usr/lib/libpthread.so.0
#2  0x00007f96e0d2a242 in pa_semaphore_wait () from /usr/lib/pulseaudio/libpulsecommon-10.0.so
#3  0x00007f96e11c1e1b in pa_asyncmsgq_send () from /usr/lib/pulseaudio/libpulsecore-10.0.so
#4  0x00007f96e11ef217 in pa_sink_input_start_move ()
   from /usr/lib/pulseaudio/libpulsecore-10.0.so
#5  0x00007f96e11f1cc3 in pa_sink_input_move_to () from /usr/lib/pulseaudio/libpulsecore-10.0.so
#6  0x00007f96d579b435 in ?? () from /usr/lib/pulse-10.0/modules/module-switch-on-connect.so
#7  0x00007f96e11d543c in pa_hook_fire () from /usr/lib/pulseaudio/libpulsecore-10.0.so
#8  0x00007f96d4f8c5f1 in module_null_sink_LTX_pa__init ()
   from /usr/lib/pulse-10.0/modules/module-null-sink.so
#9  0x00007f96e11d7598 in pa_module_load () from /usr/lib/pulseaudio/libpulsecore-10.0.so
#10 0x00007f96d51900de in ?? () from /usr/lib/pulse-10.0/modules/module-always-sink.so
#11 0x00007f96d5190202 in ?? () from /usr/lib/pulse-10.0/modules/module-always-sink.so
#12 0x00007f96e11d543c in pa_hook_fire () from /usr/lib/pulseaudio/libpulsecore-10.0.so
#13 0x00007f96e11f3f63 in pa_sink_unlink () from /usr/lib/pulseaudio/libpulsecore-10.0.so
#14 0x00007f96d77147d0 in ?? () from /usr/lib/pulse-10.0/modules/libalsa-util.so
#15 0x00007f96ce571f24 in ?? () from /usr/lib/pulse-10.0/modules/module-alsa-card.so
#16 0x00007f96e11d1866 in pa_card_set_profile () from /usr/lib/pulseaudio/libpulsecore-10.0.so
#17 0x00007f96d836b68d in ?? () from /usr/lib/pulse-10.0/modules/libprotocol-native.so
#18 0x00007f96e0d13ea2 in pa_pdispatch_run () from /usr/lib/pulseaudio/libpulsecommon-10.0.so
#19 0x00007f96d8373c75 in ?? () from /usr/lib/pulse-10.0/modules/libprotocol-native.so
#20 0x00007f96e0d16997 in ?? () from /usr/lib/pulseaudio/libpulsecommon-10.0.so
#21 0x00007f96e0d195eb in ?? () from /usr/lib/pulseaudio/libpulsecommon-10.0.so
#22 0x00007f96e0d19989 in ?? () from /usr/lib/pulseaudio/libpulsecommon-10.0.so
#23 0x00007f96e0d1a20a in ?? () from /usr/lib/pulseaudio/libpulsecommon-10.0.so
#24 0x00007f96e0f7d99c in pa_mainloop_dispatch () from /usr/lib/libpulse.so.0
#25 0x00007f96e0f7dd9c in pa_mainloop_iterate () from /usr/lib/libpulse.so.0
#26 0x00007f96e0f7de40 in pa_mainloop_run () from /usr/lib/libpulse.so.0
#27 0x0000000000407102 in main ()

Thread 3 (Thread 0x7f96d4f89700 (LWP 3923)):
#0  0x00007f96dff9176b in ppoll () from /usr/lib/libc.so.6
#1  0x00007f96e11e0c18 in pa_rtpoll_run () from /usr/lib/pulseaudio/libpulsecore-10.0.so
#2  0x00007f96d4f8bd78 in ?? () from /usr/lib/pulse-10.0/modules/module-null-sink.so
#3  0x00007f96e0d29fe8 in ?? () from /usr/lib/pulseaudio/libpulsecommon-10.0.so
#4  0x00007f96e045e2e7 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f96dff9b54f in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f96d73dd700 (LWP 3809)):
#0  0x00007f96dff9176b in ppoll () from /usr/lib/libc.so.6
#1  0x00007f96e11e0c18 in pa_rtpoll_run () from /usr/lib/pulseaudio/libpulsecore-10.0.so
#2  0x00007f96d771bcc9 in ?? () from /usr/lib/pulse-10.0/modules/libalsa-util.so
#3  0x00007f96e0d29fe8 in ?? () from /usr/lib/pulseaudio/libpulsecommon-10.0.so
#4  0x00007f96e045e2e7 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f96dff9b54f in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f96ce56e700 (LWP 3922)):
#0  0x00007f96e11eabdf in pa_sink_input_set_requested_latency_within_thread ()
   from /usr/lib/pulseaudio/libpulsecore-10.0.so
#1  0x00007f96e11fa8b5 in pa_sink_invalidate_requested_latency ()
   from /usr/lib/pulseaudio/libpulsecore-10.0.so
#2  0x00007f96e11ff7b5 in pa_sink_process_msg () from /usr/lib/pulseaudio/libpulsecore-10.0.so
#3  0x00007f96e11e0215 in ?? () from /usr/lib/pulseaudio/libpulsecore-10.0.so
#4  0x00007f96e11e0b59 in pa_rtpoll_run () from /usr/lib/pulseaudio/libpulsecore-10.0.so
#5  0x00007f96d77158d5 in ?? () from /usr/lib/pulse-10.0/modules/libalsa-util.so
#6  0x00007f96e0d29fe8 in ?? () from /usr/lib/pulseaudio/libpulsecommon-10.0.so
#7  0x00007f96e045e2e7 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007f96dff9b54f in clone () from /usr/lib/libc.so.6