-- Remote UNIX connection
pbx*CLI> core show locks

=======================================================================
=== Currently Held Locks ==============================================
=======================================================================
===
=== <pending> <lock#> (<file>): <lock type> <line num> <function> <lock name> <lock addr> (times locked)
===
=== Thread ID: 1080387904 (tps_processing_function started at [  451] taskprocessor.c ast_taskprocessor_get())
=== ---> Lock #0 (pbx.c): MUTEX 9419 ast_rdlock_contexts &conlock 0x827f00 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d9b03]
        /usr/sbin/asterisk [0x4f31ed]
        /usr/sbin/asterisk(ast_rdlock_contexts+0x23) [0x50b3eb]
        /usr/sbin/asterisk [0x4f7f67]
        /usr/sbin/asterisk [0x54c46d]
        /usr/sbin/asterisk [0x55fc9d]
        /lib64/libpthread.so.0 [0x39a600673d]
        /lib64/libc.so.6(clone+0x6d) [0x39a54d3f6d]
=== ---> Lock #1 (pbx.c): MUTEX 3912 handle_statechange hints 0x717b040 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d9b03]
        /usr/sbin/asterisk [0x4419c4]
        /usr/sbin/asterisk(_ao2_lock+0x53) [0x441d12]
        /usr/sbin/asterisk [0x4f7f88]
        /usr/sbin/asterisk [0x54c46d]
        /usr/sbin/asterisk [0x55fc9d]
        /lib64/libpthread.so.0 [0x39a600673d]
        /lib64/libc.so.6(clone+0x6d) [0x39a54d3f6d]
=== ---> Lock #2 (pbx.c): MUTEX 3913 handle_statechange hint 0x76f5a80 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d9b03]
        /usr/sbin/asterisk [0x4419c4]
        /usr/sbin/asterisk(_ao2_lock+0x53) [0x441d12]
        /usr/sbin/asterisk [0x4f7fa6]
        /usr/sbin/asterisk [0x54c46d]
        /usr/sbin/asterisk [0x55fc9d]
        /lib64/libpthread.so.0 [0x39a600673d]
        /lib64/libc.so.6(clone+0x6d) [0x39a54d3f6d]
=== ---> Waiting for Lock #3 (chan_sip.c): MUTEX 12982 cb_extensionstate p 0x7945640 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d9b03]
        /usr/sbin/asterisk [0x4419c4]
        /usr/sbin/asterisk(_ao2_lock+0x53) [0x441d12]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac3641513]
        /usr/sbin/asterisk [0x4f808d]
        /usr/sbin/asterisk [0x54c46d]
        /usr/sbin/asterisk [0x55fc9d]
        /lib64/libpthread.so.0 [0x39a600673d]
        /lib64/libc.so.6(clone+0x6d) [0x39a54d3f6d]
=== --- ---> Locked Here: chan_sip.c line 7518 (find_call)
=== --- ---> Locked Here: chan_sip.c line 12982 (cb_extensionstate)
=== -------------------------------------------------------------------
===
=== Thread ID: 1084320064 (do_monitor           started at [22809] chan_sip.c restart_monitor())
=== ---> Lock #0 (chan_sip.c): MUTEX 22259 handle_request_do &netlock 0x2aaac38a5760 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d9b03]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac360ecfc]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac36715da]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac367139b]
        /usr/sbin/asterisk(ast_io_wait+0x1ba) [0x4ce648]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac3673040]
        /usr/sbin/asterisk [0x55fc9d]
        /lib64/libpthread.so.0 [0x39a600673d]
        /lib64/libc.so.6(clone+0x6d) [0x39a54d3f6d]
=== ---> Lock #1 (chan_sip.c): MUTEX 7518 find_call sip_pvt_ptr 0x7945640 (2)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d9b03]
        /usr/sbin/asterisk [0x4419c4]
        /usr/sbin/asterisk(_ao2_lock+0x53) [0x441d12]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac3641513]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac36620df]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac3670178]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac3671b15]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac367139b]
        /usr/sbin/asterisk(ast_io_wait+0x1ba) [0x4ce648]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac3673040]
        /usr/sbin/asterisk [0x55fc9d]
        /lib64/libpthread.so.0 [0x39a600673d]
        /lib64/libc.so.6(clone+0x6d) [0x39a54d3f6d]
=== ---> Waiting for Lock #2 (pbx.c): MUTEX 9419 ast_rdlock_contexts &conlock 0x827f00 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d9b03]
        /usr/sbin/asterisk [0x4f31ed]
        /usr/sbin/asterisk(ast_rdlock_contexts+0x23) [0x50b3eb]
        /usr/sbin/asterisk [0x4f7194]
        /usr/sbin/asterisk(ast_exists_extension+0x61) [0x4f8d81]
        /usr/lib/asterisk/modules/app_macro.so [0x2aaabfaeb864]
        /usr/lib/asterisk/modules/app_macro.so [0x2aaabfaec751]
        /usr/sbin/asterisk(pbx_exec+0x1d3) [0x4ed74d]
        /usr/sbin/asterisk [0x4f760c]
        /usr/sbin/asterisk(ast_spawn_extension+0x64) [0x4f8f74]
        /usr/sbin/asterisk [0x4f9731]
        /usr/sbin/asterisk [0x4fad44]
        /usr/sbin/asterisk [0x55fc9d]
        /lib64/libpthread.so.0 [0x39a600673d]
        /lib64/libc.so.6(clone+0x6d) [0x39a54d3f6d]
=== --- ---> Locked Here: pbx.c line 9419 (ast_rdlock_contexts)
=== -------------------------------------------------------------------
===
=== Thread ID: 1099532608 (pbx_thread           started at [ 4627] pbx.c ast_pbx_start())
=== ---> Waiting for Lock #0 (pbx.c): MUTEX 9419 ast_rdlock_contexts &conlock 0x827f00 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d9b03]
        /usr/sbin/asterisk [0x4f31ed]
        /usr/sbin/asterisk(ast_rdlock_contexts+0x23) [0x50b3eb]
        /usr/sbin/asterisk [0x4f7194]
        /usr/sbin/asterisk(ast_exists_extension+0x61) [0x4f8d81]
        /usr/lib/asterisk/modules/app_macro.so [0x2aaabfaeb864]
        /usr/lib/asterisk/modules/app_macro.so [0x2aaabfaec751]
        /usr/sbin/asterisk(pbx_exec+0x1d3) [0x4ed74d]
        /usr/sbin/asterisk [0x4f760c]
        /usr/sbin/asterisk(ast_spawn_extension+0x64) [0x4f8f74]
        /usr/sbin/asterisk [0x4f9731]
        /usr/sbin/asterisk [0x4fad44]
        /usr/sbin/asterisk [0x55fc9d]
        /lib64/libpthread.so.0 [0x39a600673d]
        /lib64/libc.so.6(clone+0x6d) [0x39a54d3f6d]
=== --- ---> Locked Here: pbx.c line 9419 (ast_rdlock_contexts)
=== -------------------------------------------------------------------
===
=======================================================================