Comment 4 for bug 617656

(gdb) bt
#0 0x00007fa5e0937921 in __libc_writev (fd=9, vector=0x7fffe1823b50, count=2)
    at ../sysdeps/unix/sysv/linux/writev.c:56
#1 0x00007fa5deee64d3 in ?? () from /lib/libdbus-1.so.3
#2 0x00007fa5deede29c in ?? () from /lib/libdbus-1.so.3
#3 0x00007fa5deede5a6 in ?? () from /lib/libdbus-1.so.3
#4 0x00007fa5deedc81d in ?? () from /lib/libdbus-1.so.3
#5 0x00007fa5deec8c7e in ?? () from /lib/libdbus-1.so.3
#6 0x00007fa5deec8d58 in ?? () from /lib/libdbus-1.so.3
#7 0x00007fa5deeca2d0 in ?? () from /lib/libdbus-1.so.3
#8 0x00007fa5deeca461 in dbus_connection_send_with_reply ()
   from /lib/libdbus-1.so.3
#9 0x00007fa5df109781 in dbus_g_proxy_begin_call_internal (proxy=0x35b9740,
    method=<value optimized out>, notify=0x7fa5c2a5f060, user_data=0x3771760,
    destroy=0, args=<value optimized out>, timeout=-1) at dbus-gproxy.c:2207
#10 0x00007fa5df10ac82 in dbus_g_proxy_begin_call (proxy=0x35b9740,
    method=<value optimized out>, notify=<value optimized out>,
    user_data=<value optimized out>, destroy=<value optimized out>,
    first_arg_type=56334144) at dbus-gproxy.c:2453
#11 0x00007fa5c2a5f2ee in syncdaemon_filesystem_interface_get_metadata_async ()
   from /usr/lib/libsyncdaemon-1.0.so.1
#12 0x00007fa5c30d1370 in ?? ()
   from /usr/lib/nautilus/extensions-2.0/libnautilus-ubuntuone.so
#13 0x00000000004b7387 in ?? ()
---Type <return> to continue, or q <return> to quit---
#14 0x00000000004b3b36 in ?? ()
#15 0x00000000004b5e19 in ?? ()
#16 0x00007fa5e2f0ee55 in ?? () from /usr/lib/libgio-2.0.so.0
#17 0x00007fa5e2f2c7f8 in ?? () from /usr/lib/libgio-2.0.so.0
#18 0x00007fa5e1c72cb2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#19 0x00007fa5e1c76c18 in ?? () from /lib/libglib-2.0.so.0
#20 0x00007fa5e1c77125 in g_main_loop_run () from /lib/libglib-2.0.so.0
#21 0x00007fa5e37fea47 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#22 0x0000000000442022 in ?? ()
#23 0x00007fa5e0877d8e in __libc_start_main (main=<value optimized out>,
    argc=<value optimized out>, ubp_av=<value optimized out>,
    init=<value optimized out>, fini=<value optimized out>,
    rtld_fini=<value optimized out>, stack_end=0x7fffe18246c8)
    at libc-start.c:226
#24 0x000000000042f0e9 in ?? ()
#25 0x00007fffe18246c8 in ?? ()
#26 0x000000000000001c in ?? ()
#27 0x0000000000000001 in ?? ()
#28 0x00007fffe1824b1a in ?? ()
#29 0x0000000000000000 in ?? ()
(gdb) q