Comment 17 for bug 674876

My apologies for the multiple posts... I installed the debugging symbols for this copy/paste comment.

gdb nautilus
GNU gdb (GDB) 7.2-ubuntu
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/nautilus...Reading symbols from /usr/lib/debug/usr/bin/nautilus...done.
done.
(gdb) run
Starting program: /usr/bin/nautilus
[Thread debugging using libthread_db enabled]
[New Thread 0xb7dd8b70 (LWP 2291)]
[New Thread 0xb75d7b70 (LWP 2292)]
Initializing nautilus-gdu extension

(nautilus:2282): GLib-GObject-WARNING **: invalid cast from `gchar' to `SyncdaemonFolderInfo'

** (nautilus:2282): CRITICAL **: syncdaemon_folder_info_get_path: assertion `SYNCDAEMON_IS_FOLDER_INFO (finfo)' failed

** (nautilus:2282): CRITICAL **: syncdaemon_folder_info_get_volume_id: assertion `SYNCDAEMON_IS_FOLDER_INFO (finfo)' failed

** (nautilus:2282): CRITICAL **: syncdaemon_folder_info_get_subscribed: assertion `SYNCDAEMON_IS_FOLDER_INFO (finfo)' failed

Program received signal SIGSEGV, Segmentation fault.
0x009216f7 in g_str_hash () from /lib/libglib-2.0.so.0
(gdb) thread apply all bt

Thread 3 (Thread 0xb75d7b70 (LWP 2292)):
#0 0x0012e416 in __kernel_vsyscall ()
#1 0x00179884 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#2 0x0088be7e in ?? () from /usr/lib/libgthread-2.0.so.0
#3 0x008d42cc in ?? () from /lib/libglib-2.0.so.0
#4 0x0092a41b in ?? () from /lib/libglib-2.0.so.0
#5 0x0092848f in ?? () from /lib/libglib-2.0.so.0
#6 0x00174cc9 in start_thread () from /lib/libpthread.so.0
#7 0x00e086be in clone () from /lib/libc.so.6

Thread 2 (Thread 0xb7dd8b70 (LWP 2291)):
#0 0x0012e416 in __kernel_vsyscall ()
#1 0x00df9df6 in poll () from /lib/libc.so.6
#2 0x0090ea1b in g_poll () from /lib/libglib-2.0.so.0
#3 0x0090143c in ?? () from /lib/libglib-2.0.so.0
#4 0x00901ba7 in g_main_loop_run () from /lib/libglib-2.0.so.0
#5 0x006ef6b4 in ?? () from /usr/lib/libgio-2.0.so.0
#6 0x0092848f in ?? () from /lib/libglib-2.0.so.0
#7 0x00174cc9 in start_thread () from /lib/libpthread.so.0
#8 0x00e086be in clone () from /lib/libc.so.6

---Type <return> to continue, or q <return> to quit---
Thread 1 (Thread 0xb7fda860 (LWP 2282)):
#0 0x009216f7 in g_str_hash () from /lib/libglib-2.0.so.0
#1 0x008ee378 in g_hash_table_lookup () from /lib/libglib-2.0.so.0
#2 0x019389ba in ubuntuone_nautilus_udf_created (daemon=0x82644c0, success=1,
    folder_info=0x831c7b0, user_data=0x820c9e8) at ubuntuone-nautilus.c:1141
#3 0x01938e66 in ubuntuone_nautilus_daemon_ready (daemon=0x82644c0,
    user_data=0x820c9e8) at ubuntuone-nautilus.c:1041
#4 0x0085f93c in g_cclosure_marshal_VOID__VOID ()
   from /usr/lib/libgobject-2.0.so.0
#5 0x00850412 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#6 0x00866595 in ?? () from /usr/lib/libgobject-2.0.so.0
#7 0x008679bc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#8 0x00867e62 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#9 0x0198fc40 in ready_signal_idle_cb (user_data=0x82644c0)
    at syncdaemon-daemon.c:319
#10 0x008fb841 in ?? () from /lib/libglib-2.0.so.0
#11 0x008fd855 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#12 0x00901668 in ?? () from /lib/libglib-2.0.so.0
#13 0x00901ba7 in g_main_loop_run () from /lib/libglib-2.0.so.0
#14 0x002f71d9 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#15 0x0807f367 in main (argc=1, argv=0xbffff4c4) at nautilus-main.c:544
(gdb)