(gdb) bt full #0 queued_task_pushed (data=0x7f3ca3596238) at threadpool.c:552 tpd = 0x7f3ca3596238 pool = 0x0 was_empty = -1585492536 existing_active = #1 0x00000000005b9f78 in ast_taskprocessor_execute (tps=tps@entry=0x1807588) at taskprocessor.c:967 local = {local_data = 0x20, data = 0x7f3ce40008b0} t = 0x7f3ca0f10420 size = __PRETTY_FUNCTION__ = "ast_taskprocessor_execute" #2 0x00000000005ba0d0 in default_tps_processing_function (data=data@entry=0x1807228) at taskprocessor.c:185 listener = 0x1807228 tps = 0x1807588 pvt = 0x17ffb30 sem_value = 0 __PRETTY_FUNCTION__ = "default_tps_processing_function" #3 0x00000000005cc299 in dummy_start (data=) at utils.c:1235 __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {25195520, -5228501819576860429, 140728148323344, 0, 139899746388416, 507904, 5262812492194857203, -5228501091517513485}, __mask_was_saved = 0}}, __pad = { 0x7f3cf2affef0, 0x0, 0x0, 0x0}} __cancel_arg = 0x7f3cf2b00700 __not_first_call = ret = a = {start_routine = 0x5ba090 , data = 0x1807228, name = } #4 0x00007f3d5ae72ce2 in start_thread () from /lib64/libpthread.so.0 No symbol table info available. #5 0x00007f3d5a4038cd in clone () from /lib64/libc.so.6 No symbol table info available.