.
Thread 3 (Thread 0x7fb2c2ef9700 (LWP 1718)):
#0  0x00007fb2c6429e93 in ppoll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fb2c7946629 in pa_rtpoll_run () from /usr/lib/libpulsecore-1.1.so
No symbol table info available.
#2  0x00007fb2c119a902 in ?? () from /usr/lib/pulse-1.1/modules/libalsa-util.so
No symbol table info available.
#3  0x00007fb2c76f8c28 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
No symbol table info available.
#4  0x00007fb2c6e0de9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#5  0x00007fb2c643577d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#6  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 0x7fb2c1179700 (LWP 1719)):
#0  0x00007fb2c6429e93 in ppoll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fb2c7946629 in pa_rtpoll_run () from /usr/lib/libpulsecore-1.1.so
No symbol table info available.
#2  0x00007fb2c11a04df in ?? () from /usr/lib/pulse-1.1/modules/libalsa-util.so
No symbol table info available.
#3  0x00007fb2c76f8c28 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
No symbol table info available.
#4  0x00007fb2c6e0de9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#5  0x00007fb2c643577d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#6  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 0x7fb2c7da5700 (LWP 1713)):
#0  0x00007fb2c637b475 in raise () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fb2c637ebdb in abort () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2  0x00007fb2c16a3bf7 in ?? () from /usr/lib/pulse-1.1/modules/module-alsa-card.so
No symbol table info available.
#3  0x00007fb2c16a474f in module_alsa_card_LTX_pa__init () from /usr/lib/pulse-1.1/modules/module-alsa-card.so
No symbol table info available.
#4  0x00007fb2c793de38 in pa_module_load () from /usr/lib/libpulsecore-1.1.so
No symbol table info available.
#5  0x00007fb2c1ab6482 in ?? () from /usr/lib/pulse-1.1/modules/module-udev-detect.so
No symbol table info available.
#6  0x00007fb2c1ab7693 in module_udev_detect_LTX_pa__init () from /usr/lib/pulse-1.1/modules/module-udev-detect.so
No symbol table info available.
#7  0x00007fb2c793de38 in pa_module_load () from /usr/lib/libpulsecore-1.1.so
No symbol table info available.
#8  0x00007fb2c7931fad in ?? () from /usr/lib/libpulsecore-1.1.so
No symbol table info available.
#9  0x00007fb2c79337ee in pa_cli_command_execute_line_stateful () from /usr/lib/libpulsecore-1.1.so
No symbol table info available.
#10 0x00007fb2c7933dc9 in pa_cli_command_execute_file_stream () from /usr/lib/libpulsecore-1.1.so
No symbol table info available.
#11 0x0000000000406e56 in main ()
No symbol table info available.