Thread 3 (Thread 0x7f605f3ec710 (LWP 3918)):
#0  0x00007f605fd05787 in ppoll () from /lib64/libc.so.6
#1  0x00007f606444f1b4 in pa_rtpoll_run () from /usr/lib64/libpulsecore-0.9.21.so
#2  0x00007f605d9883ce in ?? () from /usr/lib64/pulse-0.9.21/modules/libalsa-util.so
#3  0x00007f6063db6638 in ?? () from /usr/lib64/libpulsecommon-0.9.21.so
#4  0x00007f6060839a5d in start_thread () from /lib64/libpthread.so.0
#5  0x00007f605fd0f15d in clone () from /lib64/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f605d685710 (LWP 3919)):
#0  0x00007f605fd05787 in ppoll () from /lib64/libc.so.6
#1  0x00007f606444f1b4 in pa_rtpoll_run () from /usr/lib64/libpulsecore-0.9.21.so
#2  0x00007f605d98d6a0 in ?? () from /usr/lib64/pulse-0.9.21/modules/libalsa-util.so
#3  0x00007f6063db6638 in ?? () from /usr/lib64/libpulsecommon-0.9.21.so
#4  0x00007f6060839a5d in start_thread () from /lib64/libpthread.so.0
#5  0x00007f605fd0f15d in clone () from /lib64/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f6064879700 (LWP 3913)):
#0  0x00007f605fd05787 in ppoll () from /lib64/libc.so.6
#1  0x00007f60641f7207 in pa_mainloop_poll () from /usr/lib64/libpulse.so.0
#2  0x00007f60641f8549 in pa_mainloop_iterate () from /usr/lib64/libpulse.so.0
#3  0x00007f60641f8600 in pa_mainloop_run () from /usr/lib64/libpulse.so.0
#4  0x000000000040ad43 in main ()