sv-asterisk*CLI> core show locks

=======================================================================
=== Currently Held Locks ==============================================
=======================================================================
===
=== <pending> <lock#> (<file>): <lock type> <line num> <function> <lock name> <lock addr> (times locked)
===
=== Thread ID: 1094707520 (do_devstate_changes  started at [  727] devicestate.c ast_device_state_engine_init())
=== ---> Waiting for Lock #0 (pbx.c): MUTEX 9352 ast_rdlock_contexts &conlock 0x822dc0 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x4f830e]
        /usr/sbin/asterisk(ast_rdlock_contexts+0x23) [0x508ea9]
        /usr/sbin/asterisk [0x4f48db]
        /usr/sbin/asterisk(ast_exists_extension+0x61) [0x4f6407]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac0595219]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05b7a4b]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05bfcc3]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c0dd4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c066a]
        /usr/sbin/asterisk(ast_io_wait+0x1ba) [0x4cc7f4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c22cf]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== --- ---> Locked Here: pbx.c line 9352 (ast_rdlock_contexts)
=== -------------------------------------------------------------------
===
=== Thread ID: 1087195456 (tps_processing_function started at [  451] taskprocessor.c ast_taskprocessor_get())
=== ---> Lock #0 (pbx.c): MUTEX 9352 ast_rdlock_contexts &conlock 0x822dc0 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x4f830e]
        /usr/sbin/asterisk(ast_rdlock_contexts+0x23) [0x508ea9]
        /usr/sbin/asterisk [0x4f5596]
        /usr/sbin/asterisk [0x548be1]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== ---> Lock #1 (pbx.c): RDLOCK 3865 handle_statechange &(&hints)->lock 0x8251b0 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x4eb9b4]
        /usr/sbin/asterisk [0x4f55b5]
        /usr/sbin/asterisk [0x548be1]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== ---> Lock #2 (chan_sip.c): MUTEX 12922 cb_extensionstate p 0x2aaaac7498c0 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x441549]
        /usr/sbin/asterisk(_ao2_lock+0x53) [0x441897]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac0590dc2]
        /usr/sbin/asterisk [0x4f56e0]
        /usr/sbin/asterisk [0x548be1]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== ---> Lock #3 (channel.c): RDLOCK 1320 ast_channel_search_locked &(&channels)->lock 0x800030 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x45ebd6]
        /usr/sbin/asterisk(ast_channel_search_locked+0x37) [0x4628e4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac0587b7f]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac0590f67]
        /usr/sbin/asterisk [0x4f56e0]
        /usr/sbin/asterisk [0x548be1]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== ---> Waiting for Lock #4 (channel.c): MUTEX 1322 ast_channel_search_locked (channel lock) 0x2aaad08c0310 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x46bba6]
        /usr/sbin/asterisk(__ast_channel_lock+0xa4) [0x473d8c]
        /usr/sbin/asterisk(ast_channel_search_locked+0x5c) [0x462909]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac0587b7f]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac0590f67]
        /usr/sbin/asterisk [0x4f56e0]
        /usr/sbin/asterisk [0x548be1]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== --- ---> Locked Here: channel.c line 4259 (ast_call)
=== -------------------------------------------------------------------
===
=== Thread ID: 1085958464 (do_monitor           started at [22721] chan_sip.c restart_monitor())
=== ---> Lock #0 (chan_sip.c): MUTEX 22171 handle_request_do &netlock 0x2aaac07f40c0 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac055ed4c]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c08a9]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c066a]
        /usr/sbin/asterisk(ast_io_wait+0x1ba) [0x4cc7f4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c22cf]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== ---> Lock #1 (chan_sip.c): MUTEX 7498 find_call p 0x2aaaac091950 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x4420b0]
        /usr/sbin/asterisk(_ao2_trylock+0x53) [0x4422da]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac057569d]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c08bd]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c066a]
        /usr/sbin/asterisk(ast_io_wait+0x1ba) [0x4cc7f4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c22cf]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== ---> Waiting for Lock #2 (pbx.c): MUTEX 9352 ast_rdlock_contexts &conlock 0x822dc0 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x4f830e]
        /usr/sbin/asterisk(ast_rdlock_contexts+0x23) [0x508ea9]
        /usr/sbin/asterisk [0x4f48db]
        /usr/sbin/asterisk(ast_exists_extension+0x61) [0x4f6407]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac0595219]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05b7a4b]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05bfcc3]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c0dd4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c066a]
        /usr/sbin/asterisk(ast_io_wait+0x1ba) [0x4cc7f4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c22cf]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== --- ---> Locked Here: pbx.c line 9352 (ast_rdlock_contexts)
=== -------------------------------------------------------------------
===
=== Thread ID: 1089878336 (attempt_thread       started at [  362] pbx_spool.c launch_service())
=== ---> Lock #0 (channel.c): MUTEX 4259 ast_call (channel lock) 0x2aaad08c0310 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x46bba6]
        /usr/sbin/asterisk(__ast_channel_lock+0xa4) [0x473d8c]
        /usr/sbin/asterisk(ast_call+0x32) [0x46c88f]
        /usr/lib/asterisk/modules/app_dial.so [0x2aaac831f3e7]
        /usr/lib/asterisk/modules/app_dial.so [0x2aaac8322efe]
        /usr/sbin/asterisk(pbx_exec+0x1d3) [0x4eb83d]
        /usr/sbin/asterisk [0x4f4d53]
        /usr/sbin/asterisk(ast_spawn_extension+0x64) [0x4f65fa]
        /usr/lib/asterisk/modules/app_macro.so [0x2aaac5c93934]
        /usr/lib/asterisk/modules/app_macro.so [0x2aaac5c94a15]
        /usr/sbin/asterisk(pbx_exec+0x1d3) [0x4eb83d]
        /usr/sbin/asterisk [0x4f4d53]
        /usr/sbin/asterisk(ast_spawn_extension+0x64) [0x4f65fa]
        /usr/lib/asterisk/modules/app_macro.so [0x2aaac5c93934]
        /usr/lib/asterisk/modules/app_macro.so [0x2aaac5c94a15]
        /usr/sbin/asterisk(pbx_exec+0x1d3) [0x4eb83d]
        /usr/sbin/asterisk [0x4f4d53]
        /usr/sbin/asterisk(ast_spawn_extension+0x64) [0x4f65fa]
        /usr/sbin/asterisk [0x4f6d77]
        /usr/sbin/asterisk(ast_pbx_run_args+0x3a) [0x4f8dfe]
        /usr/sbin/asterisk(ast_pbx_run+0x1a) [0x4f8e2b]
        /usr/sbin/asterisk(ast_pbx_outgoing_exten+0x1ca) [0x503e68]
        /usr/lib/asterisk/modules/pbx_spool.so [0x2aaac384a7ce]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== ---> Lock #1 (chan_local.c): MUTEX 590 local_call &p->lock 0x2aaad08bece0 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/lib/asterisk/modules/chan_local.so [0x2aaaaacf0286]
        /usr/lib/asterisk/modules/chan_local.so [0x2aaaaacf30bc]
        /usr/sbin/asterisk(ast_call+0xe4) [0x46c941]
        /usr/lib/asterisk/modules/app_dial.so [0x2aaac831f3e7]
        /usr/lib/asterisk/modules/app_dial.so [0x2aaac8322efe]
        /usr/sbin/asterisk(pbx_exec+0x1d3) [0x4eb83d]
        /usr/sbin/asterisk [0x4f4d53]
        /usr/sbin/asterisk(ast_spawn_extension+0x64) [0x4f65fa]
        /usr/lib/asterisk/modules/app_macro.so [0x2aaac5c93934]
        /usr/lib/asterisk/modules/app_macro.so [0x2aaac5c94a15]
        /usr/sbin/asterisk(pbx_exec+0x1d3) [0x4eb83d]
        /usr/sbin/asterisk [0x4f4d53]
        /usr/sbin/asterisk(ast_spawn_extension+0x64) [0x4f65fa]
        /usr/lib/asterisk/modules/app_macro.so [0x2aaac5c93934]
        /usr/lib/asterisk/modules/app_macro.so [0x2aaac5c94a15]
        /usr/sbin/asterisk(pbx_exec+0x1d3) [0x4eb83d]
        /usr/sbin/asterisk [0x4f4d53]
        /usr/sbin/asterisk(ast_spawn_extension+0x64) [0x4f65fa]
        /usr/sbin/asterisk [0x4f6d77]
        /usr/sbin/asterisk(ast_pbx_run_args+0x3a) [0x4f8dfe]
        /usr/sbin/asterisk(ast_pbx_run+0x1a) [0x4f8e2b]
        /usr/sbin/asterisk(ast_pbx_outgoing_exten+0x1ca) [0x503e68]
        /usr/lib/asterisk/modules/pbx_spool.so [0x2aaac384a7ce]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== ---> Waiting for Lock #2 (pbx.c): MUTEX 9352 ast_rdlock_contexts &conlock 0x822dc0 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x4f830e]
        /usr/sbin/asterisk(ast_rdlock_contexts+0x23) [0x508ea9]
        /usr/sbin/asterisk [0x4f48db]
        /usr/sbin/asterisk(ast_exists_extension+0x61) [0x4f6407]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac0595219]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05b7a4b]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05bfcc3]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c0dd4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c066a]
        /usr/sbin/asterisk(ast_io_wait+0x1ba) [0x4cc7f4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c22cf]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== --- ---> Locked Here: pbx.c line 9352 (ast_rdlock_contexts)
=== -------------------------------------------------------------------
===
=== Thread ID: 1102248256 (pbx_thread           started at [ 4588] pbx.c ast_pbx_start())
=== ---> Waiting for Lock #0 (pbx.c): MUTEX 9352 ast_rdlock_contexts &conlock 0x822dc0 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x4f830e]
        /usr/sbin/asterisk(ast_rdlock_contexts+0x23) [0x508ea9]
        /usr/sbin/asterisk [0x4f48db]
        /usr/sbin/asterisk(ast_exists_extension+0x61) [0x4f6407]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac0595219]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05b7a4b]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05bfcc3]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c0dd4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c066a]
        /usr/sbin/asterisk(ast_io_wait+0x1ba) [0x4cc7f4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c22cf]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== --- ---> Locked Here: pbx.c line 9352 (ast_rdlock_contexts)
=== -------------------------------------------------------------------
===
=== Thread ID: 1080830272 (pbx_thread           started at [ 4588] pbx.c ast_pbx_start())
=== ---> Waiting for Lock #0 (channel.c): WRLOCK 1784 ast_hangup &(&channels)->lock 0x800030 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x45fd65]
        /usr/sbin/asterisk(ast_hangup+0x1da) [0x4641a2]
        /usr/lib/asterisk/modules/app_dial.so [0x2aaac8318176]
        /usr/lib/asterisk/modules/app_dial.so [0x2aaac8322162]
        /usr/lib/asterisk/modules/app_dial.so [0x2aaac8322efe]
        /usr/sbin/asterisk(pbx_exec+0x1d3) [0x4eb83d]
        /usr/sbin/asterisk [0x4f4d53]
        /usr/sbin/asterisk(ast_spawn_extension+0x64) [0x4f65fa]
        /usr/sbin/asterisk [0x4f6d77]
        /usr/sbin/asterisk [0x4f8cde]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== -------------------------------------------------------------------
===
=== Thread ID: 1083214144 (pbx_thread           started at [ 4588] pbx.c ast_pbx_start())
=== ---> Waiting for Lock #0 (channel.c): WRLOCK 943 __ast_channel_alloc_ap &(&channels)->lock 0x800030 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x45fd65]
        /usr/sbin/asterisk(ast_hangup+0x1da) [0x4641a2]
        /usr/lib/asterisk/modules/app_dial.so [0x2aaac8318176]
        /usr/lib/asterisk/modules/app_dial.so [0x2aaac8322162]
        /usr/lib/asterisk/modules/app_dial.so [0x2aaac8322efe]
        /usr/sbin/asterisk(pbx_exec+0x1d3) [0x4eb83d]
        /usr/sbin/asterisk [0x4f4d53]
        /usr/sbin/asterisk(ast_spawn_extension+0x64) [0x4f65fa]
        /usr/sbin/asterisk [0x4f6d77]
        /usr/sbin/asterisk [0x4f8cde]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== -------------------------------------------------------------------
===
=== Thread ID: 1100249408 (pbx_thread           started at [ 4588] pbx.c ast_pbx_start())
=== ---> Waiting for Lock #0 (pbx.c): MUTEX 9352 ast_rdlock_contexts &conlock 0x822dc0 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x4f830e]
        /usr/sbin/asterisk(ast_rdlock_contexts+0x23) [0x508ea9]
        /usr/sbin/asterisk [0x4f48db]
        /usr/sbin/asterisk(ast_exists_extension+0x61) [0x4f6407]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac0595219]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05b7a4b]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05bfcc3]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c0dd4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c066a]
        /usr/sbin/asterisk(ast_io_wait+0x1ba) [0x4cc7f4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c22cf]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== --- ---> Locked Here: pbx.c line 9352 (ast_rdlock_contexts)
=== -------------------------------------------------------------------
===
=== Thread ID: 1093876032 (pbx_thread           started at [ 4588] pbx.c ast_pbx_start())
=== ---> Waiting for Lock #0 (channel.c): WRLOCK 1784 ast_hangup &(&channels)->lock 0x800030 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x45fd65]
        /usr/sbin/asterisk(ast_hangup+0x1da) [0x4641a2]
        /usr/lib/asterisk/modules/app_dial.so [0x2aaac8318176]
        /usr/lib/asterisk/modules/app_dial.so [0x2aaac8322162]
        /usr/lib/asterisk/modules/app_dial.so [0x2aaac8322efe]
        /usr/sbin/asterisk(pbx_exec+0x1d3) [0x4eb83d]
        /usr/sbin/asterisk [0x4f4d53]
        /usr/sbin/asterisk(ast_spawn_extension+0x64) [0x4f65fa]
        /usr/sbin/asterisk [0x4f6d77]
        /usr/sbin/asterisk [0x4f8cde]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== -------------------------------------------------------------------
===
=== Thread ID: 1100757312 (pbx_thread           started at [ 4588] pbx.c ast_pbx_start())
=== ---> Waiting for Lock #0 (pbx.c): MUTEX 9352 ast_rdlock_contexts &conlock 0x822dc0 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x4f830e]
        /usr/sbin/asterisk(ast_rdlock_contexts+0x23) [0x508ea9]
        /usr/sbin/asterisk [0x4f48db]
        /usr/sbin/asterisk(ast_exists_extension+0x61) [0x4f6407]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac0595219]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05b7a4b]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05bfcc3]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c0dd4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c066a]
        /usr/sbin/asterisk(ast_io_wait+0x1ba) [0x4cc7f4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c22cf]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== --- ---> Locked Here: pbx.c line 9352 (ast_rdlock_contexts)
=== -------------------------------------------------------------------
===
=== Thread ID: 1102756160 (pbx_thread           started at [ 4588] pbx.c ast_pbx_start())
=== ---> Waiting for Lock #0 (pbx.c): MUTEX 9352 ast_rdlock_contexts &conlock 0x822dc0 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4d7caf]
        /usr/sbin/asterisk [0x4f830e]
        /usr/sbin/asterisk(ast_rdlock_contexts+0x23) [0x508ea9]
        /usr/sbin/asterisk [0x4f48db]
        /usr/sbin/asterisk(ast_exists_extension+0x61) [0x4f6407]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac0595219]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05b7a4b]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05bfcc3]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c0dd4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c066a]
        /usr/sbin/asterisk(ast_io_wait+0x1ba) [0x4cc7f4]
        /usr/lib/asterisk/modules/chan_sip.so [0x2aaac05c22cf]
        /usr/sbin/asterisk [0x55b6b1]
        /lib64/libpthread.so.0 [0x34f920673d]
        /lib64/libc.so.6(clone+0x6d) [0x34f86d3d1d]
=== --- ---> Locked Here: pbx.c line 9352 (ast_rdlock_contexts)
=== -------------------------------------------------------------------
===
=======================================================================