=======================================================================
=== Currently Held Locks ==============================================
=======================================================================
===
=== <pending> <lock#> (<file>): <lock type> <line num> <function> <lock name> <lock addr> (times locked)
===
=== Thread ID: 1099540816 (do_timing            started at [  479] res_timing_pthread.c init_timing_thread())
=== ---> Lock #0 (astobj2.c): MUTEX 657 internal_ao2_callback c 0x10d4788 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4e9375]
        /usr/sbin/asterisk(__ast_pthread_mutex_lock+0xad) [0x4e24c7]
        /usr/sbin/asterisk(__ao2_lock+0x53) [0x44654e]
        /usr/sbin/asterisk [0x447355]
        /usr/sbin/asterisk(__ao2_callback+0x59) [0x4478d7]
        /usr/lib/asterisk/modules/res_timing_pthread.so [0x7f5f0744b032]
        /usr/sbin/asterisk [0x564e30]
        /lib/libpthread.so.0 [0x7f5f213d9fc7]
        /lib/libc.so.6(clone+0x6d) [0x7f5f21e2264d]
=== -------------------------------------------------------------------
===
=======================================================================