# cat core-show-locks.txt
=======================================================================
=== Currently Held Locks ==============================================
=======================================================================
===
=== <pending> <lock#> (<file>): <lock type> <line num> <function> <lock name> <lock addr> (times locked)
===
=== Thread ID: 0x40559940 (tps_processing_function started at [  451] taskprocessor.c ast_taskprocessor_get())
=== ---> Lock #0 (event.c): RDLOCK 1452 handle_event &(&ast_event_subs[event_types[i]])->lock 0x8228c0 (1)
        /usr/sbin/asterisk(ast_bt_get_addresses+0x1a) [0x4e9679]
        /usr/sbin/asterisk(__ast_rwlock_rdlock+0xf6) [0x4e44b0]
        /usr/sbin/asterisk [0x4b0f4b]
        /usr/sbin/asterisk [0x553ee4]
        /usr/sbin/asterisk [0x5661ca]
        /lib64/libpthread.so.0 [0x3c3ec0673d]
        /lib64/libc.so.6(clone+0x6d) [0x3c3e0d3d1d]
=== -------------------------------------------------------------------
===
=======================================================================