(gdb) thread apply all bt

Thread 1 (process 9188):
#0  0x4017dc37 in vsnprintf () from /lib/libc.so.6
#1  0x080c904d in ast_build_string_va (buffer=0x814adf4, space=0x8194010, 
    fmt=0x10 <Address 0x10 out of bounds>, 
    ap=0x80c90cd "\203€\020\211D$\004\213D$\004\203€\fÌ\203“\034\213D$ \211D$\030‚D$\f") at utils.c:540
#2  0x080c90cd in ast_build_string (buffer=0x814adf0, space=0x8194010, 
    fmt=0xbd3f8978 "\230?\031\bË>\031\b\002") at utils.c:558
#3  0x405c6a8c in skinny_call (ast=0x81691a8, dest=0x81695f0 "", timeout=36)
    at chan_skinny.c:1956
#4  0x080668d5 in ast_call (chan=0x0, addr=0x0, timeout=-1) at channel.c:2614
#5  0x4077cbd9 in dial_exec_full (chan=0x8193768, data=0xbd3fd71c, 
    peerflags=0xbd3f9520) 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=0xbd3ff94c, con=0x0, context=0x0, 
    exten=0x808a470 "\203€ \203€\fÌ\203“\fj\002Øt$$j", priority=135870312, 
    label=0x0, callerid=0x81938b8 "default", action=135870892) at pbx.c:1697
#9  0x08163fd0 in ?? ()
#10 0xbd3ff94c in ?? ()
#11 0x00000000 in ?? ()
#12 0x00000000 in ?? ()
#13 0x0808a470 in ast_spawn_extension (c=0x1, context=0x0, exten=0x814b9d0 "6246", 
    priority=1, callerid=0xbd3ffbe0 "ˆž?¸") at pbx.c:2230
#14 0x0808a927 in __ast_pbx_run (c=0x0) at pbx.c:2296
#15 0x0808b6c0 in pbx_thread (data=0x8193768) at pbx.c:2517
#16 0x40023cc4 in pthread_detach () from /lib/libpthread.so.0
#17 0x401f0037 in clone () from /lib/libc.so.6
(gdb)