. Thread 1 (Thread 0xb6aed6e0 (LWP 1045)): #0 0xb77e9424 in __kernel_vsyscall () No symbol table info available. #1 0xb714fc8f in __mpn_sub_n () at ../sysdeps/i386/sub_n.S:80 No locals. #2 0xb71532b5 in __GI_____strtol_l_internal (nptr=0xb743cff4 "Xg\030", endptr=0x91b5218, base=, group=152785432, loc=0x0) at strtol_l.c:523 negative = cutoff = cutlim = i = s = c = save = 0xbff84048 "" end = overflow = cnt = current = thousands = 0xbff80c64 "\r" thousands_len = grouping = #3 0xb725ad49 in ?? () from /tmp/tmpKQhW2t/lib/i386-linux-gnu/libc.so.6 No symbol table info available. Backtrace stopped: previous frame inner to this frame (corrupt stack?)