These are the threads that have high CPU usage:


Thread 1 (Thread 0x7f4cf398c780 (LWP 29089)):
#0  0x00007f4cf1176bad in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00000000004588e8 in monitor_sig_flags (unused=0x0) at asterisk.c:3659
#2  0x000000000045b5b3 in main (argc=1, argv=0x7fffae500fe8) at asterisk.c:4638

Thread 138 (Thread 0x7f4c5726f700 (LWP 29222)):
#0  0x00007f4cf114a9bd in nanosleep () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4cf117bf24 in usleep (useconds=<optimized out>) at ../sysdeps/unix/sysv/linux/usleep.c:32
#2  0x00007f4c89222326 in socket_read (id=0x3fc31c0, fd=17, events=1, cbdata=0x9edb620) at chan_iax2.c:9815
#3  0x000000000052e78c in ast_io_wait (ioc=0x3ed1ed0, howlong=1000) at io.c:292
#4  0x00007f4c892358cc in network_thread (ignore=0x0) at chan_iax2.c:12605
#5  0x00000000005f62bd in dummy_start (data=0x9edb540) at utils.c:1201
#6  0x00007f4cf1ec1182 in start_thread (arg=0x7f4c5726f700) at pthread_create.c:312
#7  0x00007f4cf1183efd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111