=======================================================================
=== Currently Held Locks ==============================================
=======================================================================
===
=== <pending> <lock#> (<file>): <lock type> <line num> <function> <lock name> <lock addr> (times locked)
===
=== Thread ID: 140005373729104 (do_devstate_changes  started at [  721] devicestate.c ast_device_state_engine_init())
=== ---> Lock #0 (astobj2.c): MUTEX 659 internal_ao2_callback c 0x1743cf8 (1)
	/usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4e0d77]
	/usr/sbin/asterisk [0x4448f2]
	/usr/sbin/asterisk(__ao2_lock+0x53) [0x44478e]
	/usr/sbin/asterisk [0x446597]
	/usr/sbin/asterisk(__ao2_callback+0x59) [0x446a39]
	/usr/sbin/asterisk(__ao2_find+0x2b) [0x446b92]
	/usr/sbin/asterisk [0x46993f]
	/usr/sbin/asterisk(ast_channel_get_by_name_prefix+0x27) [0x469a56]
	/usr/sbin/asterisk(ast_parse_device_state+0x3d) [0x493130]
	/usr/sbin/asterisk [0x493424]
	/usr/sbin/asterisk [0x494266]
	/usr/sbin/asterisk [0x494f72]
	/usr/sbin/asterisk [0x55d12f]
	/lib/libpthread.so.0 [0x7f558db45faa]
	/lib/libc.so.6(clone+0x6d) [0x7f558e38529d]
=== ---> Waiting for Lock #1 (channel.c): MUTEX 1381 ast_channel_cmp_cb chan 0x7c9f968 (1)
	/usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4e0d77]
	/usr/sbin/asterisk [0x4448f2]
	/usr/sbin/asterisk(__ao2_lock+0x53) [0x44478e]
	/usr/sbin/asterisk(ast_waitfor_nandfds+0x1b3) [0x46c875]
	/usr/sbin/asterisk(ast_waitfor_n+0x3d) [0x46d2e3]
	/usr/lib/asterisk/modules/app_dial.so [0x7f55789f7caa]
	/usr/lib/asterisk/modules/app_dial.so [0x7f55789fe34f]
	/usr/lib/asterisk/modules/app_dial.so [0x7f5578a01017]
	/usr/sbin/asterisk(pbx_exec+0x1f1) [0x4f7817]
	/usr/sbin/asterisk [0x501d70]
	/usr/sbin/asterisk(ast_spawn_extension+0x64) [0x50348b]
	/usr/sbin/asterisk [0x503c03]
	/usr/sbin/asterisk [0x505a53]
	/usr/sbin/asterisk [0x55d12f]
	/lib/libpthread.so.0 [0x7f558db45faa]
	/lib/libc.so.6(clone+0x6d) [0x7f558e38529d]
=== --- ---> Locked Here: chan_sip.c line 22578 (handle_request_do)
=== -------------------------------------------------------------------
===
=== Thread ID: 140004868614480 (do_monitor           started at [23047] chan_sip.c restart_monitor())
=== ---> Lock #0 (chan_sip.c): MUTEX 22564 handle_request_do &netlock 0x7f556d011ec0 (1)
	/usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4e0d77]
	/usr/lib/asterisk/modules/chan_sip.so [0x7f556cd791b1]
	/usr/lib/asterisk/modules/chan_sip.so [0x7f556cdddce4]
	/usr/lib/asterisk/modules/chan_sip.so [0x7f556cddda84]
	/usr/sbin/asterisk(ast_io_wait+0x1ba) [0x4d5e2f]
	/usr/lib/asterisk/modules/chan_sip.so [0x7f556cddf75c]
	/usr/sbin/asterisk [0x55d12f]
	/lib/libpthread.so.0 [0x7f558db45faa]
	/lib/libc.so.6(clone+0x6d) [0x7f558e38529d]
=== ---> Lock #1 (chan_sip.c): MUTEX 7418 find_call sip_pvt_ptr 0x7c71a18 (1)
	/usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4e0d77]
	/usr/sbin/asterisk [0x4448f2]
	/usr/sbin/asterisk(__ao2_lock+0x53) [0x44478e]
	/usr/lib/asterisk/modules/chan_sip.so [0x7f556cd8f7e8]
	/usr/lib/asterisk/modules/chan_sip.so [0x7f556cdddcf8]
	/usr/lib/asterisk/modules/chan_sip.so [0x7f556cddda84]
	/usr/sbin/asterisk(ast_io_wait+0x1ba) [0x4d5e2f]
	/usr/lib/asterisk/modules/chan_sip.so [0x7f556cddf75c]
	/usr/sbin/asterisk [0x55d12f]
	/lib/libpthread.so.0 [0x7f558db45faa]
	/lib/libc.so.6(clone+0x6d) [0x7f558e38529d]
=== ---> Lock #2 (chan_sip.c): MUTEX 22578 handle_request_do p->owner 0x7c9f968 (1)
	/usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4e0d77]
	/usr/sbin/asterisk [0x445253]
	/usr/sbin/asterisk(__ao2_trylock+0x53) [0x445198]
	/usr/lib/asterisk/modules/chan_sip.so [0x7f556cddde0a]
	/usr/lib/asterisk/modules/chan_sip.so [0x7f556cddda84]
	/usr/sbin/asterisk(ast_io_wait+0x1ba) [0x4d5e2f]
	/usr/lib/asterisk/modules/chan_sip.so [0x7f556cddf75c]
	/usr/sbin/asterisk [0x55d12f]
	/lib/libpthread.so.0 [0x7f558db45faa]
	/lib/libc.so.6(clone+0x6d) [0x7f558e38529d]
=== ---> Waiting for Lock #3 (astobj2.c): MUTEX 659 internal_ao2_callback c 0x1743cf8 (1)
	/usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4e0d77]
	/usr/sbin/asterisk [0x4448f2]
	/usr/sbin/asterisk(__ao2_lock+0x53) [0x44478e]
	/usr/sbin/asterisk [0x446597]
	/usr/sbin/asterisk(__ao2_callback+0x59) [0x446a39]
	/usr/sbin/asterisk(__ao2_unlink+0x3f) [0x4463cd]
	/usr/sbin/asterisk(ast_hangup+0x1f4) [0x46b54e]
	/usr/lib/asterisk/modules/app_dial.so [0x7f5578a0032f]
	/usr/lib/asterisk/modules/app_dial.so [0x7f5578a01017]
	/usr/sbin/asterisk(pbx_exec+0x1f1) [0x4f7817]
	/usr/sbin/asterisk [0x501d70]
	/usr/sbin/asterisk(ast_spawn_extension+0x64) [0x50348b]
	/usr/sbin/asterisk [0x503c03]
	/usr/sbin/asterisk [0x505a53]
	/usr/sbin/asterisk [0x55d12f]
	/lib/libpthread.so.0 [0x7f558db45faa]
	/lib/libc.so.6(clone+0x6d) [0x7f558e38529d]
=== --- ---> Locked Here: astobj2.c line 659 (internal_ao2_callback)
=== -------------------------------------------------------------------