=======================================================================
=== Currently Held Locks ==============================================
=======================================================================
===
=== <pending> <lock#> (<file>): <lock type> <line num> <function> <lock name> <lock addr> (times locked)
===
=== Thread ID: 139823600510736 (logger_thread        started at [ 1045] logger.c init_logger())
=== ---> Lock #0 (logger.c): RDLOCK 902 logger_print_normal &(&verbosers)->lock 0x820830 (1)
	/usr/sbin/asterisk(ast_bt_get_addresses+0x1d) [0x4e8456]
	/usr/sbin/asterisk(__ast_rwlock_rdlock+0xaf) [0x4e31ef]
	/usr/sbin/asterisk() [0x4e6b6e]
	/usr/sbin/asterisk() [0x4e73f2]
	/usr/sbin/asterisk() [0x566c33]
	/lib/libpthread.so.0(+0x69ca) [0x7f2b372099ca]
	/lib/libc.so.6(clone+0x6d) [0x7f2b3770a6fd]
=== -------------------------------------------------------------------
===
=== Thread ID: 139822717728528 (do_monitor           started at [24469] chan_sip.c restart_monitor())
=== ---> Lock #0 (astobj2.c): MUTEX 657 internal_ao2_callback c 0x7f2b12412090 (1)
	/usr/sbin/asterisk(ast_bt_get_addresses+0x1d) [0x4e8456]
	/usr/sbin/asterisk(__ast_pthread_mutex_lock+0xaf) [0x4e128d]
	/usr/sbin/asterisk(__ao2_lock+0x5a) [0x444284]
	/usr/sbin/asterisk() [0x444f94]
	/usr/sbin/asterisk(__ao2_callback+0x5f) [0x445465]
	/usr/lib/asterisk/modules/chan_sip.so(+0x815ca) [0x7f2b1bd675ca]
	/usr/sbin/asterisk() [0x566c33]
	/lib/libpthread.so.0(+0x69ca) [0x7f2b372099ca]
	/lib/libc.so.6(clone+0x6d) [0x7f2b3770a6fd]
=== -------------------------------------------------------------------
===
=======================================================================