#0  0x0fee7488 in vfprintf () from /lib/libc.so.6
#1  0x0ff0ba54 in vsnprintf () from /lib/libc.so.6
#2  0x0ffba828 in vsnprintf () from /lib/libc.so.6
#3  0x1001b734 in warn ()
#4  0x1001af8c in ?? ()
#5  0x100012b4 in ?? ()
#6  0x100032e8 in ?? ()
#7  0x0feb6d40 in ?? () from /lib/libc.so.6
#8  0x0feb6f98 in __libc_start_main () from /lib/libc.so.6
#9  0x00000000 in ?? ()