(gdb) thread apply all bt

Thread 1 (process 9086):
#0  0x4017dc37 in vsnprintf () from /lib/libc.so.6
#1  0x080c904d in ast_build_string_va (buffer=0x817eab0, space=0x10, 
    fmt=0x405ced88 "|Ü", 
    ap=0x80c90cd "\203Ä\020\211D$\004\213D$\004\203Ä\fÃ\203ì\034\213D$ \211D$\030ÇD$\f") at utils.c:540
#2  0x080c90cd in ast_build_string (buffer=0x402400a0, space=0x817eab0, 
    fmt=0xbd7f88c8 "¨´\024\b\fö#@¨µ\024\b\004\211\177½¨´\024\b\001")
    at utils.c:558
#3  0x405c69a6 in skinny_call (ast=0xf, dest=0x0, timeout=1081618764)
    at chan_skinny.c:1949
#4  0x080668d5 in ast_call (chan=0x0, addr=0x0, timeout=-1) at channel.c:2614
#5  0x4077cbd9 in dial_exec_full (chan=0x814b608, data=0xbd7fd65c, 
    peerflags=0xbd7f9460) at app_dial.c:1150
#6  0x4077ed7e in dial_exec (chan=0x0, data=0x0) at app_dial.c:1649
#7  0x08085c01 in pbx_exec (c=0x0, app=0x0, data=0x1, newstack=134779295)
    at pbx.c:553
#8  0x0808919f in pbx_extension_helper (c=0xbd7ff88c, con=0x0, context=0x0, 
    exten=0x808a470 "\203Ä \203Ä\fÃ\203ì\fj\002ÿt$$j", priority=135575048, 
    label=0x0, callerid=0x814b758 "default", action=135575628) at pbx.c:1697
#9  0x08163fd0 in ?? ()
#10 0xbd7ff88c in ?? ()
---Type <return> to continue, or q <return> to quit---
#11 0x00000000 in ?? ()
#12 0x00000000 in ?? ()
#13 0x0808a470 in ast_spawn_extension (c=0x1, context=0x0, 
    exten=0x813a020 "2024561414", priority=1, callerid=0xbd7ffbe0 "àû\177½")
    at pbx.c:2230
#14 0x0808a927 in __ast_pbx_run (c=0x2) at pbx.c:2296
#15 0x0808b7dc in ast_pbx_run (c=0x817e240) at pbx.c:2556
#16 0x405c5da8 in skinny_ss (data=0xbd7ffbe0) at chan_skinny.c:1751
#17 0x4002cbc0 in ?? () from /lib/libpthread.so.0
#18 0x00000000 in ?? ()
#19 0x40023cc4 in pthread_detach () from /lib/libpthread.so.0
#20 0x401f0037 in clone () from /lib/libc.so.6
(gdb)