Thread 30 (Thread 0x7f95c434e700 (LWP 10674)):
#0  0x00007f96108e753d in read () from /lib64/libpthread.so.0
#1  0x00007f9616c4061e in _timerfd_next (timer=0x7f9604232308) at src/switch_time.c:474
#2  timer_next (timer=0x7f9604232308) at src/switch_time.c:838
#3  0x00007f9616b74f98 in switch_core_timer_next (timer=timer@entry=0x7f9604232308) at src/switch_core_timer.c:74
#4  0x00007f95c43cbb74 in read_stream_thread (thread=<optimized out>, obj=0x7f9604231d78) at mod_local_stream.c:445
#5  0x00007f9616e98b00 in dummy_worker (opaque=0x7f9604232e90) at threadproc/unix/thread.c:151
#6  0x00007f96108de684 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f960ff3defd in clone () from /lib64/libc.so.6

Thread 29 (Thread 0x7f95c4312700 (LWP 10673)):
#0  0x00007f96108e753d in read () from /lib64/libpthread.so.0
#1  0x00007f9616c4061e in _timerfd_next (timer=0x7f960422e2e8) at src/switch_time.c:474
#2  timer_next (timer=0x7f960422e2e8) at src/switch_time.c:838
#3  0x00007f9616b74f98 in switch_core_timer_next (timer=timer@entry=0x7f960422e2e8) at src/switch_core_timer.c:74
#4  0x00007f95c43cbb74 in read_stream_thread (thread=<optimized out>, obj=0x7f960422dd58) at mod_local_stream.c:445
#5  0x00007f9616e98b00 in dummy_worker (opaque=0x7f960422ebf0) at threadproc/unix/thread.c:151
#6  0x00007f96108de684 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f960ff3defd in clone () from /lib64/libc.so.6

Thread 28 (Thread 0x7f95c43c6700 (LWP 10672)):
#0  0x00007f960ff34083 in select () from /lib64/libc.so.6
#1  0x00007f9616e9a075 in apr_sleep (t=<optimized out>) at time/unix/time.c:246
#2  0x00007f9616c3f72c in do_sleep (t=<optimized out>) at src/switch_time.c:164
#3  0x00007f95c43cb798 in read_stream_thread (thread=<optimized out>, obj=0x7f9604229d38) at mod_local_stream.c:303
#4  0x00007f9616e98b00 in dummy_worker (opaque=0x7f960422aa90) at threadproc/unix/thread.c:151
#5  0x00007f96108de684 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f960ff3defd in clone () from /lib64/libc.so.6

Thread 27 (Thread 0x7f95c438a700 (LWP 10671)):
#0  0x00007f96108e753d in read () from /lib64/libpthread.so.0
#1  0x00007f9616c4061e in _timerfd_next (timer=0x7f96042262a8) at src/switch_time.c:474
#2  timer_next (timer=0x7f96042262a8) at src/switch_time.c:838
#3  0x00007f9616b74f98 in switch_core_timer_next (timer=timer@entry=0x7f96042262a8) at src/switch_core_timer.c:74
#4  0x00007f95c43cbb74 in read_stream_thread (thread=<optimized out>, obj=0x7f9604225d18) at mod_local_stream.c:445
#5  0x00007f9616e98b00 in dummy_worker (opaque=0x7f9604226a70) at threadproc/unix/thread.c:151
#6  0x00007f96108de684 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f960ff3defd in clone () from /lib64/libc.so.6