(gdb) bt
#0  0xb7ef8410 in ?? ()
#1  0xbfece4dc in ?? ()
#2  0x00000006 in ?? ()
#3  0x00006775 in ?? ()
#4  0xb71a0df0 in raise () from /lib/tls/i686/cmov/libc.so.6
#5  0xb71a2641 in abort () from /lib/tls/i686/cmov/libc.so.6
#6  0xb71d699b in __fsetlocking () from /lib/tls/i686/cmov/libc.so.6
#7  0xb71de7ad in mallopt () from /lib/tls/i686/cmov/libc.so.6
#8  0xb71e1e10 in free () from /lib/tls/i686/cmov/libc.so.6
#9  0xb749ca41 in g_free () from /usr/lib/libglib-2.0.so.0
#10 0x080b54db in gossip_telepathy_groups_contact_update (groups=0x8121d88, 
    contact_handle=6, group=0x8291560) at gossip-telepathy-groups.c:205
#11 0x080b2510 in telepathy_contact_update (protocol=0x80f4570, 
    contact=0x8261eb0) at gossip-telepathy.c:1276
#12 0x080a76e1 in gossip_protocol_update_contact (protocol=0x80f4570, 
    contact=0x8261eb0) at gossip-protocol.c:539
#13 0x080ab2d2 in gossip_session_update_contact (session=0x81120f0, 
    contact=0x8261eb0) at gossip-session.c:1507
#14 0x08075d8a in contact_list_drag_data_received (widget=0x8206010, 
    context=0x818fce8, x=124, y=131, selection=0xbfecf814, info=0, 
    time=1661035078, user_data=0x0) at gossip-contact-list.c:1673
#15 0xb79962e9 in _gtk_marshal_VOID__OBJECT_INT_INT_BOXED_UINT_UINT (
    closure=0x819fc20, return_value=0x0, n_param_values=7,