Program received signal SIGSEGV, Segmentation fault.
0x2ab0dd7c in TIFFFetchShortPair (tif=0xffffffff, dir=0xffffffff)
    at tif_dirread.c:992
        in tif_dirread.c
(gdb) x /50x $sp+16
0x7fff7d08:     0x2ab9ad40      0x2ab32170      0xffffffff      0xffffffff
0x7fff7d18:     0xffffffff      0xffffffff      0xffffffff      0xffffffff
0x7fff7d28:     0x04000000      0x04000000      0x04000050      0x04000050
0x7fff7d38:     0x04000000      0x04000000      0x04000000      0x04000000
0x7fff7d48:     0x04000000      0x04000000      0x04000000      0x04000000
0x7fff7d58:     0x04000000      0xffffffff      0xffffffff      0xffffffff
0x7fff7d68:     0xffffffff      0xffffffff      0xffffffff      0xffffffff
0x7fff7d78:     0xffffffff      0xffffffff      0xffffffff      0xffffffff
0x7fff7d88:     0xffffffff      0x04000000      0x04000000      0x00000000
0x7fff7d98:     0x00000000      0x00000000      0x00000000      0x00000000
0x7fff7da8:     0x00000000      0x00000000      0x00000000      0x00000000
0x7fff7db8:     0x00000000      0x00000000      0x00000000      0x00000000
0x7fff7dc8:     0x00000000      0x00000000