(gdb) thread apply all bt

Thread 46 (Thread 0x7f8eb2ce6700 (LWP 18413)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f0153e24d in apr_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at locks/unix/thread_cond.c:68
#2  0x00007f8f01535321 in apr_queue_pop (queue=queue@entry=0x1640a60, data=data@entry=0x7f8eb2ce5e40) at misc/apr_queue.c:276
#3  0x00007f8f0125e355 in switch_queue_pop (queue=queue@entry=0x1640a60, data=data@entry=0x7f8eb2ce5e40) at src/switch_apr.c:1116
#4  0x00007f8f012d4637 in chat_thread_run (thread=<optimized out>, obj=0x1640a60) at src/switch_loadable_module.c:738
#5  0x00007f8f01544430 in dummy_worker (opaque=0x164ca50) at threadproc/unix/thread.c:151
#6  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb2ce6700) at pthread_create.c:312
#7  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 45 (Thread 0x7f8eb2d22700 (LWP 18412)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f0153e24d in apr_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at locks/unix/thread_cond.c:68
#2  0x00007f8f01535321 in apr_queue_pop (queue=queue@entry=0x1423188, data=data@entry=0x7f8eb2d21e40) at misc/apr_queue.c:276
#3  0x00007f8f0125e355 in switch_queue_pop (queue=queue@entry=0x1423188, data=data@entry=0x7f8eb2d21e40) at src/switch_apr.c:1116
#4  0x00007f8f012d4637 in chat_thread_run (thread=<optimized out>, obj=0x1423188) at src/switch_loadable_module.c:738
#5  0x00007f8f01544430 in dummy_worker (opaque=0x1640a30) at threadproc/unix/thread.c:151
#6  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb2d22700) at pthread_create.c:312
#7  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 44 (Thread 0x7f8eb36ee700 (LWP 18406)):
#0  0x00007f8f00ff73bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f013403c6 in read (__nbytes=8, __buf=0x7f8eb36ed1f8, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  _timerfd_next (timer=0x15efb80) at src/switch_time.c:474
#3  timer_next (timer=0x15efb80) at src/switch_time.c:838
#4  0x00007f8f01276598 in switch_core_timer_next (timer=timer@entry=0x15efb80) at src/switch_core_timer.c:74
#5  0x00007f8eb376b874 in read_stream_thread (thread=<optimized out>, obj=0x15ef608) at mod_local_stream.c:443
#6  0x00007f8f01544430 in dummy_worker (opaque=0x15f0450) at threadproc/unix/thread.c:151
#7  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb36ee700) at pthread_create.c:312
#8  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 43 (Thread 0x7f8eb372a700 (LWP 18405)):
#0  0x00007f8f00ff73bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f013403c6 in read (__nbytes=8, __buf=0x7f8eb37291f8, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  _timerfd_next (timer=0x15ebb60) at src/switch_time.c:474
#3  timer_next (timer=0x15ebb60) at src/switch_time.c:838
#4  0x00007f8f01276598 in switch_core_timer_next (timer=timer@entry=0x15ebb60) at src/switch_core_timer.c:74
#5  0x00007f8eb376b874 in read_stream_thread (thread=<optimized out>, obj=0x15eb5e8) at mod_local_stream.c:443
#6  0x00007f8f01544430 in dummy_worker (opaque=0x15ec2f0) at threadproc/unix/thread.c:151
#7  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb372a700) at pthread_create.c:312
#8  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 42 (Thread 0x7f8eb3766700 (LWP 18404)):
#0  0x00007f8f00ff73bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f013403c6 in read (__nbytes=8, __buf=0x7f8eb37651f8, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  _timerfd_next (timer=0x15e7b40) at src/switch_time.c:474
#3  timer_next (timer=0x15e7b40) at src/switch_time.c:838
#4  0x00007f8f01276598 in switch_core_timer_next (timer=timer@entry=0x15e7b40) at src/switch_core_timer.c:74
#5  0x00007f8eb376b874 in read_stream_thread (thread=<optimized out>, obj=0x15e75c8) at mod_local_stream.c:443
#6  0x00007f8f01544430 in dummy_worker (opaque=0x15e82d0) at threadproc/unix/thread.c:151
#7  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb3766700) at pthread_create.c:312
#8  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 41 (Thread 0x7f8eb59b0700 (LWP 18403)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f0153e24d in apr_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at locks/unix/thread_cond.c:68
#2  0x00007f8f0125d525 in switch_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at src/switch_apr.c:357
#3  0x00007f8eb6061d4b in timer_thread_run (thread=<optimized out>, obj=<optimized out>) at mod_spandsp_fax.c:201
#4  0x00007f8f01544430 in dummy_worker (opaque=0x15b42e0) at threadproc/unix/thread.c:151
#5  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb59b0700) at pthread_create.c:312
#6  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 40 (Thread 0x7f8eb7571700 (LWP 18402)):
#0  0x00007f8f00d14da3 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f01545a75 in apr_sleep (t=<optimized out>) at time/unix/time.c:246
#2  0x00007f8eb7582244 in node_thread_run (thread=<optimized out>, obj=<optimized out>) at mod_fifo.c:2176
#3  0x00007f8f01544430 in dummy_worker (opaque=0x1537a80) at threadproc/unix/thread.c:151
#4  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb7571700) at pthread_create.c:312
#5  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 39 (Thread 0x7f8eb2a03700 (LWP 18813)):
#0  __memcpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:37
#1  0x00007f8eff166e60 in png_read_row () from /lib/x86_64-linux-gnu/libpng12.so.0
#2  0x00007f8eff1672b3 in png_read_image () from /lib/x86_64-linux-gnu/libpng12.so.0
#3  0x00007f8f012c5e00 in switch_img_read_png (file_name=0x7f8ed0088e50 "/usr/local/freeswitch/images/default-mute.png", img_fmt=img_fmt@entry=VPX_IMG_FMT_I420) at src/switch_core_video.c:1610
#4  0x00007f8eb7deeb80 in conference_member_add (conference=conference@entry=0x7f8ed007f9f8, member=member@entry=0x7f8eb2a023b0) at conference_member.c:766
#5  0x00007f8eb7dce406 in conference_function (session=0x7f8ecc1f0548, data=<optimized out>) at mod_conference.c:2153
#6  0x00007f8f0128ef8b in switch_core_session_exec (session=session@entry=0x7f8ecc1f0548, application_interface=application_interface@entry=0x150fa10, arg=arg@entry=0x7f8ed0034000 "3300-${domain_name}@cdquality") at src/switch_core_session.c:2783
#7  0x00007f8f0128f4db in switch_core_session_execute_application_get_flags (session=session@entry=0x7f8ecc1f0548, app=0x7f8ed0033ff0 "conference", arg=0x7f8ed0034000 "3300-${domain_name}@cdquality", flags=flags@entry=0x0) at src/switch_core_session.c:2653
#8  0x00007f8f01292602 in switch_core_standard_on_execute (session=0x7f8ecc1f0548) at src/switch_core_state_machine.c:283
#9  switch_core_session_run (session=0x7f8ecc1f0548) at src/switch_core_state_machine.c:539
#10 0x00007f8f0128c7ee in switch_core_session_thread (thread=<optimized out>, obj=0x7f8ecc1f0548) at src/switch_core_session.c:1629
#11 0x00007f8f01288523 in switch_core_session_thread_pool_worker (thread=0x7f8ecc20b100, obj=<optimized out>) at src/switch_core_session.c:1692
#12 0x00007f8f01544430 in dummy_worker (opaque=0x7f8ecc20b100) at threadproc/unix/thread.c:151
#13 0x00007f8f00ff0182 in start_thread (arg=0x7f8eb2a03700) at pthread_create.c:312
#14 0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 38 (Thread 0x7f8ee847f700 (LWP 18395)):
#0  0x00007f8f00d1012d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f012db2e4 in poll (__timeout=100, __nfds=3, __fds=0x7f8ed002de00) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  switch_wait_socklist (waitlist=waitlist@entry=0x7f8ee847eb90, len=len@entry=3, ms=ms@entry=100) at src/switch_utils.c:2930
#3  0x00007f8ee84d21d0 in profile_one_loop (profile=profile@entry=0x7f8ee84a4038) at mod_verto.c:4162
#4  0x00007f8ee84d2c68 in runtime (profile=0x7f8ee84a4038) at mod_verto.c:4290
#5  profile_thread (thread=<optimized out>, obj=0x7f8ee84a4038) at mod_verto.c:4921
#6  0x00007f8f01288523 in switch_core_session_thread_pool_worker (thread=0x14edd50, obj=<optimized out>) at src/switch_core_session.c:1692
#7  0x00007f8f01544430 in dummy_worker (opaque=0x14edd50) at threadproc/unix/thread.c:151
#8  0x00007f8f00ff0182 in start_thread (arg=0x7f8ee847f700) at pthread_create.c:312
#9  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 37 (Thread 0x7f8eb3676700 (LWP 18408)):
#0  0x00007f8f00ff73bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f013403c6 in read (__nbytes=8, __buf=0x7f8eb36751f8, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  _timerfd_next (timer=0x15f7bc0) at src/switch_time.c:474
#3  timer_next (timer=0x15f7bc0) at src/switch_time.c:838
#4  0x00007f8f01276598 in switch_core_timer_next (timer=timer@entry=0x15f7bc0) at src/switch_core_timer.c:74
#5  0x00007f8eb376b874 in read_stream_thread (thread=<optimized out>, obj=0x15f7648) at mod_local_stream.c:443
#6  0x00007f8f01544430 in dummy_worker (opaque=0x15f85d0) at threadproc/unix/thread.c:151
#7  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb3676700) at pthread_create.c:312
#8  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 36 (Thread 0x7f8ee8b2c700 (LWP 18391)):
#0  0x00007f8f00d14da3 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f01545a75 in apr_sleep (t=<optimized out>) at time/unix/time.c:246
#2  0x00007f8eeadfd93d in sofia_profile_worker_thread_run (thread=<optimized out>, obj=0x1499f90) at sofia.c:2719
#3  0x00007f8f01544430 in dummy_worker (opaque=0x7f8ee8d54b50) at threadproc/unix/thread.c:151
#4  0x00007f8f00ff0182 in start_thread (arg=0x7f8ee8b2c700) at pthread_create.c:312
#5  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 35 (Thread 0x7f8eb36b2700 (LWP 18407)):
#0  0x00007f8f00ff73bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f013403c6 in read (__nbytes=8, __buf=0x7f8eb36b11f8, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  _timerfd_next (timer=0x15f3ba0) at src/switch_time.c:474
#3  timer_next (timer=0x15f3ba0) at src/switch_time.c:838
#4  0x00007f8f01276598 in switch_core_timer_next (timer=timer@entry=0x15f3ba0) at src/switch_core_timer.c:74
#5  0x00007f8eb376b874 in read_stream_thread (thread=<optimized out>, obj=0x15f3628) at mod_local_stream.c:443
#6  0x00007f8f01544430 in dummy_worker (opaque=0x15f46f0) at threadproc/unix/thread.c:151
#7  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb36b2700) at pthread_create.c:312
#8  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 34 (Thread 0x7f8eea034700 (LWP 18384)):
#0  0x00007f8f00d14da3 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f01545a75 in apr_sleep (t=<optimized out>) at time/unix/time.c:246
#2  0x00007f8eeadfd93d in sofia_profile_worker_thread_run (thread=<optimized out>, obj=0x1490b50) at sofia.c:2719
#3  0x00007f8f01544430 in dummy_worker (opaque=0x7f8eea422b40) at threadproc/unix/thread.c:151
#4  0x00007f8f00ff0182 in start_thread (arg=0x7f8eea034700) at pthread_create.c:312
#5  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 33 (Thread 0x7f8ee9592700 (LWP 18388)):
#0  0x00007f8f00d14da3 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f01545a75 in apr_sleep (t=<optimized out>) at time/unix/time.c:246
#2  0x00007f8eeadfd93d in sofia_profile_worker_thread_run (thread=<optimized out>, obj=0x1487290) at sofia.c:2719
#3  0x00007f8f01544430 in dummy_worker (opaque=0x7f8ee97baf20) at threadproc/unix/thread.c:151
#4  0x00007f8f00ff0182 in start_thread (arg=0x7f8ee9592700) at pthread_create.c:312
#5  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 32 (Thread 0x7f8eeadb3700 (LWP 18375)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f0153e24d in apr_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at locks/unix/thread_cond.c:68
#2  0x00007f8f01535321 in apr_queue_pop (queue=queue@entry=0x7f8ef8079ad8, data=data@entry=0x7f8eeadb2e30) at misc/apr_queue.c:276
#3  0x00007f8f0125e355 in switch_queue_pop (queue=queue@entry=0x7f8ef8079ad8, data=data@entry=0x7f8eeadb2e30) at src/switch_apr.c:1116
#4  0x00007f8eeae25071 in sofia_msg_thread_run (thread=<optimized out>, obj=0x7f8ef8079ad8) at sofia.c:2026
#5  0x00007f8f01544430 in dummy_worker (opaque=0x14764a0) at threadproc/unix/thread.c:151
#6  0x00007f8f00ff0182 in start_thread (arg=0x7f8eeadb3700) at pthread_create.c:312
#7  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 31 (Thread 0x7f8ef8ec6700 (LWP 18372)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f8f0153e2b2 in apr_thread_cond_timedwait (cond=0x141b8e8, mutex=0x141b898, timeout=500000) at locks/unix/thread_cond.c:89
#2  0x00007f8f01535419 in apr_queue_pop_timeout (queue=0x141b858, data=data@entry=0x7f8ef8ec5e40, timeout=timeout@entry=500000) at misc/apr_queue.c:339
#3  0x00007f8f0125e365 in switch_queue_pop_timeout (queue=<optimized out>, data=data@entry=0x7f8ef8ec5e40, timeout=timeout@entry=500000) at src/switch_apr.c:1121
#4  0x00007f8f012cc9ef in switch_scheduler_task_thread (thread=<optimized out>, obj=<optimized out>) at src/switch_scheduler.c:188
#5  0x00007f8f01544430 in dummy_worker (opaque=0x7f8ef90af5d8) at threadproc/unix/thread.c:151
#6  0x00007f8f00ff0182 in start_thread (arg=0x7f8ef8ec6700) at pthread_create.c:312
#7  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 30 (Thread 0x7f8ee9ff8700 (LWP 18385)):
#0  0x00007f8f00d14da3 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f01545a75 in apr_sleep (t=<optimized out>) at time/unix/time.c:246
#2  0x00007f8eeadfd93d in sofia_profile_worker_thread_run (thread=<optimized out>, obj=0x147f8d0) at sofia.c:2719
#3  0x00007f8f01544430 in dummy_worker (opaque=0x7f8eea485b40) at threadproc/unix/thread.c:151
#4  0x00007f8f00ff0182 in start_thread (arg=0x7f8ee9ff8700) at pthread_create.c:312
#5  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 29 (Thread 0x7f8ef9d3e700 (LWP 18369)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f0153e24d in apr_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at locks/unix/thread_cond.c:68
#2  0x00007f8f01535321 in apr_queue_pop (queue=0x7f8ef9e367a0, data=data@entry=0x7f8ef9d3de40) at misc/apr_queue.c:276
#3  0x00007f8f0125e355 in switch_queue_pop (queue=<optimized out>, data=data@entry=0x7f8ef9d3de40) at src/switch_apr.c:1116
#4  0x00007f8f013351a1 in log_thread (t=<optimized out>, obj=<optimized out>) at src/switch_log.c:294
#5  0x00007f8f01544430 in dummy_worker (opaque=0x7f8ef95005a8) at threadproc/unix/thread.c:151
#6  0x00007f8f00ff0182 in start_thread (arg=0x7f8ef9d3e700) at pthread_create.c:312
#7  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 28 (Thread 0x7f8ef86c5700 (LWP 18373)):
#0  0x00007f8f00d1012d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f012db2e4 in poll (__timeout=100, __nfds=2, __fds=0x7f8ee40008c0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  switch_wait_socklist (waitlist=waitlist@entry=0x7f8ef86c4b90, len=len@entry=2, ms=ms@entry=100) at src/switch_utils.c:2930
#3  0x00007f8ee84d21d0 in profile_one_loop (profile=profile@entry=0x7f8ee8480038) at mod_verto.c:4162
#4  0x00007f8ee84d2c68 in runtime (profile=0x7f8ee8480038) at mod_verto.c:4290
#5  profile_thread (thread=<optimized out>, obj=0x7f8ee8480038) at mod_verto.c:4921
#6  0x00007f8f01288523 in switch_core_session_thread_pool_worker (thread=0x7f8ef0000d30, obj=<optimized out>) at src/switch_core_session.c:1692
#7  0x00007f8f01544430 in dummy_worker (opaque=0x7f8ef0000d30) at threadproc/unix/thread.c:151
#8  0x00007f8f00ff0182 in start_thread (arg=0x7f8ef86c5700) at pthread_create.c:312
#9  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 27 (Thread 0x7f8ef9d02700 (LWP 18368)):
#0  0x00007f8f00d14da3 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f01545a75 in apr_sleep (t=<optimized out>) at time/unix/time.c:246
#2  0x00007f8f01333f5a in switch_nat_multicast_runtime (thread=<optimized out>, obj=<optimized out>) at src/switch_nat.c:289
#3  0x00007f8f01544430 in dummy_worker (opaque=0x7f8ef9e36708) at threadproc/unix/thread.c:151
#4  0x00007f8f00ff0182 in start_thread (arg=0x7f8ef9d02700) at pthread_create.c:312
#5  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 26 (Thread 0x7f8eb299e700 (LWP 18474)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f0153e24d in apr_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at locks/unix/thread_cond.c:68
#2  0x00007f8f01535321 in apr_queue_pop (queue=queue@entry=0x7f8ef9500cb8, data=data@entry=0x7f8eb299ddc8) at misc/apr_queue.c:276
#3  0x00007f8f0125e355 in switch_queue_pop (queue=queue@entry=0x7f8ef9500cb8, data=data@entry=0x7f8eb299ddc8) at src/switch_apr.c:1116
#4  0x00007f8f012dcf49 in switch_event_channel_deliver_thread (thread=<optimized out>, obj=0x7f8ef9500cb8) at src/switch_event.c:2914
#5  0x00007f8f01288523 in switch_core_session_thread_pool_worker (thread=0x7f8ee0001450, obj=<optimized out>) at src/switch_core_session.c:1692
#6  0x00007f8f01544430 in dummy_worker (opaque=0x7f8ee0001450) at threadproc/unix/thread.c:151
#7  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb299e700) at pthread_create.c:312
#8  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 25 (Thread 0x7f8f01945700 (LWP 18330)):
#0  0x00007f8f00d14da3 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f01545a75 in apr_sleep (t=<optimized out>) at time/unix/time.c:246
#2  0x00007f8f01279535 in pool_thread (thread=<optimized out>, obj=<optimized out>) at src/switch_core_memory.c:565
#3  0x00007f8f01544430 in dummy_worker (opaque=0x7f8f019a7c40) at threadproc/unix/thread.c:151
#4  0x00007f8f00ff0182 in start_thread (arg=0x7f8f01945700) at pthread_create.c:312
#5  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 24 (Thread 0x7f8ef9128700 (LWP 18370)):
#0  __clock_nanosleep (clock_id=clock_id@entry=1, flags=flags@entry=0, req=req@entry=0x7f8ef9127d20, rem=0xffffffffffffffff, rem@entry=0x0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:49
#1  0x00007f8f0133f527 in do_sleep (t=<optimized out>) at src/switch_time.c:173
#2  0x00007f8f012812ca in switch_user_sql_thread (thread=<optimized out>, obj=0x1411750) at src/switch_core_sqldb.c:2137
#3  0x00007f8f01544430 in dummy_worker (opaque=0x7f8ef91ec6c0) at threadproc/unix/thread.c:151
#4  0x00007f8f00ff0182 in start_thread (arg=0x7f8ef9128700) at pthread_create.c:312
#5  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 23 (Thread 0x7f8f01a0d7c0 (LWP 18329)):
#0  0x00007f8f00d14da3 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f01545a75 in apr_sleep (t=<optimized out>) at time/unix/time.c:246
#2  0x00007f8f0129b00a in switch_core_runtime_loop (bg=bg@entry=1) at src/switch_core.c:1190
#3  0x0000000000402e89 in main (argc=<optimized out>, argv=<optimized out>) at src/switch.c:1208

Thread 22 (Thread 0x7f8ee8058700 (LWP 18401)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f0153e24d in apr_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at locks/unix/thread_cond.c:68
#2  0x00007f8f0125d525 in switch_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at src/switch_apr.c:357
#3  0x00007f8f01281375 in switch_user_sql_thread (thread=<optimized out>, obj=0x154f200) at src/switch_core_sqldb.c:2130
#4  0x00007f8f01544430 in dummy_worker (opaque=0x7f8ee811c6c0) at threadproc/unix/thread.c:151
#5  0x00007f8f00ff0182 in start_thread (arg=0x7f8ee8058700) at pthread_create.c:312
#6  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 21 (Thread 0x7f8ee95ce700 (LWP 18387)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f0153e24d in apr_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at locks/unix/thread_cond.c:68
#2  0x00007f8f0125d525 in switch_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at src/switch_apr.c:357
#3  0x00007f8f01281375 in switch_user_sql_thread (thread=<optimized out>, obj=0x7f8ed40297e0) at src/switch_core_sqldb.c:2130
#4  0x00007f8f01544430 in dummy_worker (opaque=0x7f8ee96926c0) at threadproc/unix/thread.c:151
#5  0x00007f8f00ff0182 in start_thread (arg=0x7f8ee95ce700) at pthread_create.c:312
#6  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 20 (Thread 0x7f8ee8b68700 (LWP 18390)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f0153e24d in apr_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at locks/unix/thread_cond.c:68
#2  0x00007f8f0125d525 in switch_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at src/switch_apr.c:357
#3  0x00007f8f01281375 in switch_user_sql_thread (thread=<optimized out>, obj=0x7f8ecc041140) at src/switch_core_sqldb.c:2130
#4  0x00007f8f01544430 in dummy_worker (opaque=0x7f8ee8c2c6c0) at threadproc/unix/thread.c:151
#5  0x00007f8f00ff0182 in start_thread (arg=0x7f8ee8b68700) at pthread_create.c:312
#6  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 19 (Thread 0x7f8eea070700 (LWP 18383)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f0153e24d in apr_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at locks/unix/thread_cond.c:68
#2  0x00007f8f0125d525 in switch_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at src/switch_apr.c:357
#3  0x00007f8f01281375 in switch_user_sql_thread (thread=<optimized out>, obj=0x7f8ed0029330) at src/switch_core_sqldb.c:2130
#4  0x00007f8f01544430 in dummy_worker (opaque=0x7f8eea1706c0) at threadproc/unix/thread.c:151
#5  0x00007f8f00ff0182 in start_thread (arg=0x7f8eea070700) at pthread_create.c:312
#6  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 18 (Thread 0x7f8eea0ac700 (LWP 18382)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f0153e24d in apr_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at locks/unix/thread_cond.c:68
#2  0x00007f8f0125d525 in switch_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at src/switch_apr.c:357
#3  0x00007f8f01281375 in switch_user_sql_thread (thread=<optimized out>, obj=0x7f8ec80297e0) at src/switch_core_sqldb.c:2130
#4  0x00007f8f01544430 in dummy_worker (opaque=0x7f8eea2356c0) at threadproc/unix/thread.c:151
#5  0x00007f8f00ff0182 in start_thread (arg=0x7f8eea0ac700) at pthread_create.c:312
#6  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 17 (Thread 0x7f8eb2a3f700 (LWP 18457)):
#0  __clock_nanosleep (clock_id=clock_id@entry=1, flags=flags@entry=0, req=req@entry=0x7f8eb2a3ed70, rem=0xffffffffffffffff, rem@entry=0x0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:49
#1  0x00007f8f0133f527 in do_sleep (t=<optimized out>) at src/switch_time.c:173
#2  0x00007f8eb710b40a in vm_event_thread_run (thread=<optimized out>, obj=<optimized out>) at mod_voicemail.c:4105
#3  0x00007f8f01544430 in dummy_worker (opaque=0x15849c8) at threadproc/unix/thread.c:151
#4  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb2a3f700) at pthread_create.c:312
#5  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 16 (Thread 0x7f8eb2d9a700 (LWP 18410)):
#0  0x00007f8f00ff76dd in accept () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f01542f26 in apr_socket_accept (new=new@entry=0x7f8eb2d99de0, sock=0x7f8ebc025760, connection_context=0x7f8ebc02b5e8) at network_io/unix/sockets.c:191
#2  0x00007f8f0125db35 in switch_socket_accept (new_sock=new_sock@entry=0x7f8eb2d99de0, sock=<optimized out>, pool=<optimized out>) at src/switch_apr.c:731
#3  0x00007f8eeb194590 in mod_event_socket_runtime () at mod_event_socket.c:2965
#4  0x00007f8f012cdcf3 in switch_loadable_module_exec (thread=0x1422c50, obj=0x1422830) at src/switch_loadable_module.c:113
#5  0x00007f8f01544430 in dummy_worker (opaque=0x1422c50) at threadproc/unix/thread.c:151
#6  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb2d9a700) at pthread_create.c:312
#7  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 15 (Thread 0x7f8ee821e700 (LWP 18396)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f0153e24d in apr_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at locks/unix/thread_cond.c:68
#2  0x00007f8f01535321 in apr_queue_pop (queue=0x1476328, data=data@entry=0x7f8ee821de18) at misc/apr_queue.c:276
#3  0x00007f8f0125e355 in switch_queue_pop (queue=<optimized out>, data=data@entry=0x7f8ee821de18) at src/switch_apr.c:1116
#4  0x00007f8eeae35137 in sofia_presence_event_thread_run (thread=<optimized out>, obj=<optimized out>) at sofia_presence.c:1623
#5  0x00007f8f01544430 in dummy_worker (opaque=0x1477280) at threadproc/unix/thread.c:151
#6  0x00007f8f00ff0182 in start_thread (arg=0x7f8ee821e700) at pthread_create.c:312
#7  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 14 (Thread 0x7f8eb2d5e700 (LWP 18411)):
#0  0x00007f8f00ff73bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f01341002 in read (__nbytes=8, __buf=0x7f8eb2d5ddc8, __fd=78) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  softtimer_runtime () at src/switch_time.c:1160
#3  0x00007f8f012cdcf3 in switch_loadable_module_exec (thread=0x1423108, obj=0x1422ce8) at src/switch_loadable_module.c:113
#4  0x00007f8f01544430 in dummy_worker (opaque=0x1423108) at threadproc/unix/thread.c:151
#5  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb2d5e700) at pthread_create.c:312
#6  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 13 (Thread 0x7f8ee9fbc700 (LWP 18386)):
#0  0x00007f8f00d1db13 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8eeaee671c in su_epoll_port_wait_events (self=0x7f8eb80008c0, tout=<optimized out>) at su_epoll_port.c:495
#2  0x00007f8eeaee5bc6 in su_base_port_run (self=0x7f8eb80008c0) at su_base_port.c:349
#3  0x00007f8eeaeeaa70 in su_pthread_port_clone_main (varg=0x7f8eead3a710) at su_pthread_port.c:343
#4  0x00007f8f00ff0182 in start_thread (arg=0x7f8ee9fbc700) at pthread_create.c:312
#5  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 12 (Thread 0x7f8eb2dd6700 (LWP 18409)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f0153e24d in apr_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at locks/unix/thread_cond.c:68
#2  0x00007f8f0125d525 in switch_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at src/switch_apr.c:357
#3  0x00007f8ee84d0e93 in mod_verto_runtime () at mod_verto.c:5881
#4  0x00007f8f012cdcf3 in switch_loadable_module_exec (thread=0x1422798, obj=0x1422278) at src/switch_loadable_module.c:113
#5  0x00007f8f01544430 in dummy_worker (opaque=0x1422798) at threadproc/unix/thread.c:151
#6  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb2dd6700) at pthread_create.c:312
#7  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 11 (Thread 0x7f8eebfff700 (LWP 18380)):
#0  0x00007f8f00d1db13 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8eeaee671c in su_epoll_port_wait_events (self=0x7f8ec00008c0, tout=<optimized out>) at su_epoll_port.c:495
#2  0x00007f8eeaee5bc6 in su_base_port_run (self=0x7f8ec00008c0) at su_base_port.c:349
#3  0x00007f8eeaeeaa70 in su_pthread_port_clone_main (varg=0x7f8eeacfe710) at su_pthread_port.c:343
#4  0x00007f8f00ff0182 in start_thread (arg=0x7f8eebfff700) at pthread_create.c:312
#5  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 10 (Thread 0x7f8eeacc3700 (LWP 18379)):
#0  0x00007f8f00d1db13 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8eeaee671c in su_epoll_port_wait_events (self=0x7f8ecc0008c0, tout=<optimized out>) at su_epoll_port.c:495
#2  0x00007f8eeaee5d22 in su_base_port_step (self=0x7f8ecc0008c0, tout=1000) at su_base_port.c:467
#3  0x00007f8eeae124d3 in sofia_profile_thread_run (thread=<optimized out>, obj=0x1499f90) at sofia.c:3099
#4  0x00007f8f01544430 in dummy_worker (opaque=0x149ddf0) at threadproc/unix/thread.c:151
#5  0x00007f8f00ff0182 in start_thread (arg=0x7f8eeacc3700) at pthread_create.c:312
#6  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 9 (Thread 0x7f8eeacff700 (LWP 18378)):
#0  0x00007f8f00d1db13 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8eeaee671c in su_epoll_port_wait_events (self=0x7f8ec80008c0, tout=<optimized out>) at su_epoll_port.c:495
#2  0x00007f8eeaee5d22 in su_base_port_step (self=0x7f8ec80008c0, tout=1000) at su_base_port.c:467
#3  0x00007f8eeae124d3 in sofia_profile_thread_run (thread=<optimized out>, obj=0x1490b50) at sofia.c:3099
#4  0x00007f8f01544430 in dummy_worker (opaque=0x1495878) at threadproc/unix/thread.c:151
#5  0x00007f8f00ff0182 in start_thread (arg=0x7f8eeacff700) at pthread_create.c:312
#6  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 8 (Thread 0x7f8ef90ec700 (LWP 18371)):
#0  0x00007f8f00d14da3 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f01545a75 in apr_sleep (t=<optimized out>) at time/unix/time.c:246
#2  0x00007f8f01286e8d in switch_core_sql_db_thread (thread=<optimized out>, obj=<optimized out>) at src/switch_core_sqldb.c:1395
#3  0x00007f8f01544430 in dummy_worker (opaque=0x7f8ef9500748) at threadproc/unix/thread.c:151
#4  0x00007f8f00ff0182 in start_thread (arg=0x7f8ef90ec700) at pthread_create.c:312
#5  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 7 (Thread 0x7f8ee9556700 (LWP 18389)):
#0  0x00007f8f00d1db13 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8eeaee671c in su_epoll_port_wait_events (self=0x7f8ecc016440, tout=<optimized out>) at su_epoll_port.c:495
#2  0x00007f8eeaee5bc6 in su_base_port_run (self=0x7f8ecc016440) at su_base_port.c:349
#3  0x00007f8eeaeeaa70 in su_pthread_port_clone_main (varg=0x7f8eeacc2710) at su_pthread_port.c:343
#4  0x00007f8f00ff0182 in start_thread (arg=0x7f8ee9556700) at pthread_create.c:312
#5  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7f8eeac87700 (LWP 18381)):
#0  0x00007f8f00d1db13 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8eeaee671c in su_epoll_port_wait_events (self=0x7f8ec40008c0, tout=<optimized out>) at su_epoll_port.c:495
#2  0x00007f8eeaee5bc6 in su_base_port_run (self=0x7f8ec40008c0) at su_base_port.c:349
#3  0x00007f8eeaeeaa70 in su_pthread_port_clone_main (varg=0x7f8eead76710) at su_pthread_port.c:343
#4  0x00007f8f00ff0182 in start_thread (arg=0x7f8eeac87700) at pthread_create.c:312
#5  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7f8eead3b700 (LWP 18377)):
#0  0x00007f8f00d1db13 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8eeaee671c in su_epoll_port_wait_events (self=0x7f8ed40008c0, tout=<optimized out>) at su_epoll_port.c:495
#2  0x00007f8eeaee5d22 in su_base_port_step (self=0x7f8ed40008c0, tout=1000) at su_base_port.c:467
#3  0x00007f8eeae124d3 in sofia_profile_thread_run (thread=<optimized out>, obj=0x1487290) at sofia.c:3099
#4  0x00007f8f01544430 in dummy_worker (opaque=0x148cad0) at threadproc/unix/thread.c:151
#5  0x00007f8f00ff0182 in start_thread (arg=0x7f8eead3b700) at pthread_create.c:312
#6  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f8ef9e0e700 (LWP 18331)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f0153e24d in apr_thread_cond_wait (cond=<optimized out>, mutex=<optimized out>) at locks/unix/thread_cond.c:68
#2  0x00007f8f01535321 in apr_queue_pop (queue=queue@entry=0x11ecc88, data=data@entry=0x7f8ef9e0de20) at misc/apr_queue.c:276
#3  0x00007f8f0125e355 in switch_queue_pop (queue=queue@entry=0x11ecc88, data=data@entry=0x7f8ef9e0de20) at src/switch_apr.c:1116
#4  0x00007f8f012deeb7 in switch_event_dispatch_thread (thread=<optimized out>, obj=0x11ecc88) at src/switch_event.c:323
#5  0x00007f8f01544430 in dummy_worker (opaque=0x7f8ef9e361c0) at threadproc/unix/thread.c:151
#6  0x00007f8f00ff0182 in start_thread (arg=0x7f8ef9e0e700) at pthread_create.c:312
#7  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f8eead77700 (LWP 18376)):
#0  0x00007f8f00d1db13 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8eeaee671c in su_epoll_port_wait_events (self=0x7f8ed00008c0, tout=<optimized out>) at su_epoll_port.c:495
#2  0x00007f8eeaee5d22 in su_base_port_step (self=0x7f8ed00008c0, tout=1000) at su_base_port.c:467
#3  0x00007f8eeae124d3 in sofia_profile_thread_run (thread=<optimized out>, obj=0x147f8d0) at sofia.c:3099
#4  0x00007f8f01544430 in dummy_worker (opaque=0x1482dc0) at threadproc/unix/thread.c:151
#5  0x00007f8f00ff0182 in start_thread (arg=0x7f8eead77700) at pthread_create.c:312
#6  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f8ef9dd2700 (LWP 18844)):
#0  0x00007f8f00ff73bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8f013403c6 in read (__nbytes=8, __buf=0x7f8ef9dc5ce8, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  _timerfd_next (timer=0x7f8ef9dc5df0) at src/switch_time.c:474
#3  timer_next (timer=0x7f8ef9dc5df0) at src/switch_time.c:838
#4  0x00007f8f01276598 in switch_core_timer_next (timer=timer@entry=0x7f8ef9dc5df0) at src/switch_core_timer.c:74
#5  0x00007f8eb7dcf871 in conference_thread_run (thread=<optimized out>, obj=0x7f8ed007f9f8) at mod_conference.c:242
#6  0x00007f8f01544430 in dummy_worker (opaque=0x7f8ed00805b8) at threadproc/unix/thread.c:151
#7  0x00007f8f00ff0182 in start_thread (arg=0x7f8ef9dd2700) at pthread_create.c:312
#8  0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f8eb2b20700 (LWP 18421)):
#0  0x00007f8f00c59cc9 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1  0x00007f8f00c5d0d8 in __GI_abort () at abort.c:89
#2  0x00007f8f00c96394 in __libc_message (do_abort=do_abort@entry=1, fmt=fmt@entry=0x7f8f00da4b28 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#3  0x00007f8f00ca266e in malloc_printerr (ptr=<optimized out>, str=0x7f8f00da0c19 "free(): invalid pointer", action=1) at malloc.c:4996
#4  _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at malloc.c:3840
#5  0x00007f8f01334567 in switch_log_node_free (pnode=pnode@entry=0x7f8eb2b1f158) at src/switch_log.c:136
#6  0x00007f8eeb192a24 in read_packet (listener=listener@entry=0x7f8ebc027898, event=event@entry=0x7f8eb2b1f7f0, timeout=timeout@entry=0) at mod_event_socket.c:1361
#7  0x00007f8eeb1988a0 in listener_run (thread=<optimized out>, obj=0x7f8ebc027898) at mod_event_socket.c:2719
#8  0x00007f8f01544430 in dummy_worker (opaque=0x7f8eb2be4868) at threadproc/unix/thread.c:151
#9  0x00007f8f00ff0182 in start_thread (arg=0x7f8eb2b20700) at pthread_create.c:312
#10 0x00007f8f00d1d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111