=======================================================================
=== Currently Held Locks ==============================================
=======================================================================
===
=== <pending> <lock#> (<file>): <lock type> <line num> <function> <lock name> <lock addr> (times locked)
===
=== Thread ID: 162105664 (do_monitor           started at [19924] chan_sip.c restart_monitor())
=== ---> Lock #0 (chan_sip.c): MUTEX 19894 do_monitor &monlock 0x9805d80 (1)
        asterisk(ast_bt_get_addresses+0x1a) [0x4c0db8]
        /usr/lib/asterisk/modules/chan_sip.so [0x95818c0]
        /usr/lib/asterisk/modules/chan_sip.so [0x95d87eb]
        asterisk [0x53a93e]
        /lib64/libpthread.so.0 [0x3375e06307]
        /lib64/libc.so.6(clone+0x6d) [0x33756d1ded]
=== -------------------------------------------------------------------
===
=== Thread ID: 362903872 (do_timing            started at [  451] res_timing_pthread.c init_timing_thread())
=== ---> Lock #0 (astobj2.c): MUTEX 153 ao2_lock &p->priv_data.lock 0x150ea6c4 (1)
        asterisk(ast_bt_get_addresses+0x1a) [0x4c0db8]
        asterisk [0x43b97e]
        asterisk(ao2_lock+0x49) [0x43b804]
        asterisk [0x43d501]
        asterisk(_ao2_callback+0x47) [0x43d8d7]
        /usr/lib/asterisk/modules/res_timing_pthread.so [0x157d892b]
        asterisk [0x53a93e]
        /lib64/libpthread.so.0 [0x3375e06307]
        /lib64/libc.so.6(clone+0x6d) [0x33756d1ded]
=== ---> Lock #1 (astobj2.c): MUTEX 153 ao2_lock &p->priv_data.lock 0x1d8abbfc (1)
        asterisk(ast_bt_get_addresses+0x1a) [0x4c0db8]
        asterisk [0x43b97e]
        asterisk(ao2_lock+0x49) [0x43b804]
        /usr/lib/asterisk/modules/res_timing_pthread.so [0x157d88a2]
        asterisk [0x43d5c3]
        asterisk(_ao2_callback+0x47) [0x43d8d7]
        /usr/lib/asterisk/modules/res_timing_pthread.so [0x157d892b]
        asterisk [0x53a93e]
        /lib64/libpthread.so.0 [0x3375e06307]
        /lib64/libc.so.6(clone+0x6d) [0x33756d1ded]
=== -------------------------------------------------------------------
===
=== Thread ID: 499034432 (network_thread       started at [10145] chan_iax2.c start_network_thread())
=== ---> Lock #0 (timing.c): RDLOCK 136 ast_timer_ack &lock 0x80c6a0 (1)
        asterisk(ast_bt_get_addresses+0x1a) [0x4c0db8]
        asterisk [0x52e4ea]
        asterisk(ast_timer_ack+0x2d) [0x52e90c]
        /usr/lib/asterisk/modules/chan_iax2.so [0x176dd386]
        asterisk(ast_io_wait+0x1ba) [0x4b4163]
        /usr/lib/asterisk/modules/chan_iax2.so [0x176f1732]
        asterisk [0x53a93e]
        /lib64/libpthread.so.0 [0x3375e06307]
        /lib64/libc.so.6(clone+0x6d) [0x33756d1ded]
=== ---> Waiting for Lock #1 (astobj2.c): MUTEX 153 ao2_lock &p->priv_data.lock 0x150ea6c4 (1)
        asterisk(ast_bt_get_addresses+0x1a) [0x4c0db8]
        asterisk [0x43b97e]
        asterisk(ao2_lock+0x49) [0x43b804]
        asterisk [0x43d501]
        asterisk(_ao2_callback+0x47) [0x43d8d7]
        asterisk(_ao2_find+0x2b) [0x43d965]
        /usr/lib/asterisk/modules/res_timing_pthread.so [0x157d84cc]
        /usr/lib/asterisk/modules/res_timing_pthread.so [0x157d82e6]
        asterisk(ast_timer_ack+0x69) [0x52e948]
        /usr/lib/asterisk/modules/chan_iax2.so [0x176dd386]
        asterisk(ast_io_wait+0x1ba) [0x4b4163]
        /usr/lib/asterisk/modules/chan_iax2.so [0x176f1732]
        asterisk [0x53a93e]
        /lib64/libpthread.so.0 [0x3375e06307]
        /lib64/libc.so.6(clone+0x6d) [0x33756d1ded]
=== -------------------------------------------------------------------
===
=======================================================================