Program received signal SIGSEGV, Segmentation fault.
0xb668e1f4 in malloc_consolidate () from /lib/libc.so.6
(gdb) bt
#0 0xb668e1f4 in malloc_consolidate () from /lib/libc.so.6
#1 0x0000000c in ?? ()
#2 0xb6755679 in __PRETTY_FUNCTION__.11046 () from /lib/libc.so.6
#3 0xb6eee82b in free_rl_list () from /usr/X11R6/lib/libpango-1.0.so.0
#4 0xb6771140 in ?? () from /lib/libc.so.6
#5 0x00000030 in ?? ()
#6 0xb6771148 in main_arena () from /lib/libc.so.6
#7 0x08647fe0 in ?? ()
#8 0xb6771170 in main_arena () from /lib/libc.so.6
#9 0x084f82b0 in ?? ()
#10 0xb6771148 in main_arena () from /lib/libc.so.6
#11 0x0000000c in ?? ()
#12 0xb67a6abf in __pthread_mutex_unlock_usercnt () from /lib/libpthread.so.0
#13 0xb668e0e9 in malloc_consolidate () from /lib/libc.so.6
#14 0xb6690a14 in _int_malloc () from /lib/libc.so.6
#15 0x00000003 in ?? ()
#16 0xb68cbeb8 in g_private_get_posix_impl () from /usr/X11R6/lib/libgthread-2.0.so.0
#17 0xb6808ba2 in g_slice_alloc () from /usr/X11R6/lib/libglib-2.0.so.0
#18 0xb67a8413 in pthread_getspecific () from /lib/libpthread.so.0
#19 0xb68cdff4 in ?? () from /usr/X11R6/lib/libgthread-2.0.so.0
#20 0xb67a5690 in pthread_mutex_destroy () from /lib/libpthread.so.0
#21 0xb68cbed3 in g_private_get_posix_impl () from /usr/X11R6/lib/libgthread-2.0.so.0
#22 0xb6771170 in main_arena () from /lib/libc.so.6
#23 0xb687aff4 in ?? () from /usr/X11R6/lib/libglib-2.0.so.0
#24 0x00000420 in ?? ()
#25 0x08051a10 in ?? ()
#26 0xb67a6abf in __pthread_mutex_unlock_usercnt () from /lib/libpthread.so.0
#27 0x080bb890 in ?? ()
#28 0x08051aa8 in ?? ()
#29 0x00000000 in ?? ()