.
Thread 1 (LWP 3913):
#0  0x76e790a8 in munmap () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x0001f85a in ?? ()
No symbol table info available.
#2  0x00014a2a in ?? ()
No symbol table info available.
#3  0x0000b8d2 in ?? ()
No symbol table info available.
#4  0x76e02452 in __libc_start_main (main=0xb5a1, argc=2, ubp_av=0x7eb34824, init=<optimised out>, fini=0x49d95, rtld_fini=0x76fbe295 <_dl_fini>, stack_end=0x7eb34824) at libc-start.c:260
        self = <optimised out>
        result = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 0, 1995218944, 0, 0, 0, 1996300288, 0, 2125678296, 1994400807, 0 <repeats 18 times>, 1996280336, 1995374592, -1, 1996281552, 1994354104, 1996284616, 0, 1996216273, 1996286800, 1, 1, 0, 1996286608, 1994333688, 1, 1996062180, 1996062184, 1995663681, 1995892561, 1996286208, 1996280336, 0, 413772, 1996281552, 0, 1996300288, 0, 1996216273, 1996286208, 1, 1, 0, 1995664805, 1994354104, 1, 0}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x76fc1e14 <_dl_runtime_resolve+24>}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
#5  0x0000bdca in ?? ()
No symbol table info available.
#6  0x0000bdca in ?? ()
No symbol table info available.
Backtrace stopped: previous frame identical to this frame (corrupt stack?)