.
Thread 1 (Thread 0xb714ea40 (LWP 21187)):
#0  0xb75ae424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb724c1ef in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        resultvar = <optimized out>
        resultvar = <optimized out>
        pid = -1220812812
        selftid = 21187
#2  0xb724f835 in __GI_abort () at abort.c:91
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x407, sa_sigaction = 0x407}, sa_mask = {__val = {3076331964, 3076344012, 6, 8, 3214879108, 3073373774, 0, 0, 3072713037, 3074154484, 3074154484, 20, 3214880644, 3073495594, 2, 3214879108, 8, 0, 3214883276, 0, 7, 0, 5, 3214879212, 3214879204, 8, 3073883752, 3073883756, 3076329472, 2, 3076482521, 3}}, sa_flags = 4, sa_restorer = 0xb737993f}
        sigs = {__val = {32, 0 <repeats 31 times>}}
#3  0xb7285f9a in __libc_message (do_abort=2, fmt=0xb737df3c "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:201
        ap = 0xb5f6a000 ""
        ap_copy = 0xb5f6a000 ""
        fd = 2
        on_2 = <optimized out>
        list = <optimized out>
        nlist = <optimized out>
        cp = <optimized out>
        written = <optimized out>
#4  0xb7290ae2 in malloc_printerr (action=<optimized out>, str=<optimized out>, ptr=0xb9d15010) at malloc.c:5007
        buf = "b9d15010"
        cp = <optimized out>
#5  0xb76f0cdb in ?? () at ../../Xi/xiproperty.c:221
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)