$ gdb gnome-control-center
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Reading symbols from gnome-control-center...Reading symbols from /home/jimmac/gnome-control-center...(no debugging symbols found)...done.
(no debugging symbols found)...done.
Missing separate debuginfos, use: debuginfo-install control-center-3.14.0-1.fc21.x86_64
(gdb) run
Starting program: /usr/bin/gnome-control-center 
Got object file from memory but can't read symbols: File truncated.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
[New Thread 0x7fffc9eb8700 (LWP 3602)]
[New Thread 0x7fffc19f1700 (LWP 3603)]

(gnome-control-center:3596): GLib-GObject-WARNING **: The property GtkAlignment:xalign is deprecated and shouldn't be used anymore. It will be removed in a future version.

(gnome-control-center:3596): GLib-GObject-WARNING **: The property GtkAlignment:yalign is deprecated and shouldn't be used anymore. It will be removed in a future version.

(gnome-control-center:3596): GLib-GObject-WARNING **: The property GtkMisc:xpad is deprecated and shouldn't be used anymore. It will be removed in a future version.
[New Thread 0x7fffc0be7700 (LWP 3769)]
[New Thread 0x7fffbbfff700 (LWP 3772)]
[Thread 0x7fffbbfff700 (LWP 3772) exited]
[New Thread 0x7fffbbfff700 (LWP 3879)]
[New Thread 0x7fffbb3fe700 (LWP 3880)]
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.

(gnome-control-center:3596): printers-cc-panel-WARNING **: GDBus.Error:org.freedesktop.DBus.Python.AttributeError: Traceback (most recent call last):
  File "/usr/share/system-config-printer/scp-dbus-service.py", line 250, in _group
    for device_uri, deviceobj in self.deviceobjs.iteritems ():
AttributeError: 'dict' object has no attribute 'iteritems'


(gnome-control-center:3596): printers-cc-panel-WARNING **: GDBus.Error:org.freedesktop.DBus.Python.AttributeError: Traceback (most recent call last):
  File "/usr/share/system-config-printer/scp-dbus-service.py", line 250, in _group
    for device_uri, deviceobj in self.deviceobjs.iteritems ():
AttributeError: 'dict' object has no attribute 'iteritems'


(gnome-control-center:3596): printers-cc-panel-WARNING **: GDBus.Error:org.freedesktop.DBus.Python.AttributeError: Traceback (most recent call last):
  File "/usr/share/system-config-printer/scp-dbus-service.py", line 250, in _group
    for device_uri, deviceobj in self.deviceobjs.iteritems ():
AttributeError: 'dict' object has no attribute 'iteritems'


(gnome-control-center:3596): printers-cc-panel-WARNING **: GDBus.Error:org.freedesktop.DBus.Python.AttributeError: Traceback (most recent call last):
  File "/usr/share/system-config-printer/scp-dbus-service.py", line 250, in _group
    for device_uri, deviceobj in self.deviceobjs.iteritems ():
AttributeError: 'dict' object has no attribute 'iteritems'


(gnome-control-center:3596): printers-cc-panel-WARNING **: GDBus.Error:org.freedesktop.DBus.Python.AttributeError: Traceback (most recent call last):
  File "/usr/share/system-config-printer/scp-dbus-service.py", line 250, in _group
    for device_uri, deviceobj in self.deviceobjs.iteritems ():
AttributeError: 'dict' object has no attribute 'iteritems'

[Thread 0x7fffbb3fe700 (LWP 3880) exited]

(gnome-control-center:3596): printers-cc-panel-WARNING **: GDBus.Error:org.freedesktop.DBus.Python.AttributeError: Traceback (most recent call last):
  File "/usr/share/system-config-printer/scp-dbus-service.py", line 250, in _group
    for device_uri, deviceobj in self.deviceobjs.iteritems ():
AttributeError: 'dict' object has no attribute 'iteritems'


(gnome-control-center:3596): printers-cc-panel-WARNING **: GDBus.Error:org.freedesktop.DBus.Python.AttributeError: Traceback (most recent call last):
  File "/usr/share/system-config-printer/scp-dbus-service.py", line 250, in _group
    for device_uri, deviceobj in self.deviceobjs.iteritems ():
AttributeError: 'dict' object has no attribute 'iteritems'

[New Thread 0x7fffbb3fe700 (LWP 3964)]
Detaching after fork from child process 3965.
[New Thread 0x7fffba180700 (LWP 3966)]
[New Thread 0x7fffb997f700 (LWP 3967)]
[New Thread 0x7fffb917e700 (LWP 3968)]
[New Thread 0x7fffb897d700 (LWP 3969)]
[Thread 0x7fffb997f700 (LWP 3967) exited]
[Thread 0x7fffb917e700 (LWP 3968) exited]
[Thread 0x7fffbb3fe700 (LWP 3964) exited]
[Thread 0x7fffbbfff700 (LWP 3879) exited]
[Thread 0x7fffba180700 (LWP 3966) exited]
[New Thread 0x7fffba180700 (LWP 3981)]
[New Thread 0x7fffbbfff700 (LWP 3982)]
Detaching after fork from child process 3983.

Program received signal SIGSEGV, Segmentation fault.
0x0000000000500a20 in get_lpd_devices_cb ()
(gdb) thread apply all bt

Thread 14 (Thread 0x7fffbbfff700 (LWP 3982)):
#0  0x00007fffe065d14d in _talloc_realloc_array () at /lib64/libtalloc.so.2
#1  0x00007fffe2d5acc8 in str_list_make () at /lib64/libsamba-util.so.0
#2  0x00007fffe2d5d2e7 in debug_parse_levels () at /lib64/libsamba-util.so.0
#3  0x00007fffe1ddede1 in lp_do_parameter () at /lib64/libsmbconf.so.0
#4  0x00007fffe1ddf2ea in lp_set_cmdline_helper () at /lib64/libsmbconf.so.0
#5  0x00007ffff3329c74 in smbc_setDebug () at /lib64/libsmbclient.so.0
#6  0x00007ffff331a1fa in smbc_new_context () at /lib64/libsmbclient.so.0
#7  0x00000000005053c6 in _pp_samba_get_devices_thread ()
#8  0x00007ffff04cd6cf in run_in_thread () at /lib64/libgio-2.0.so.0
#9  0x00007ffff04ba546 in io_job_thread () at /lib64/libgio-2.0.so.0
#10 0x00007ffff04ddb95 in g_task_thread_pool_thread ()
    at /lib64/libgio-2.0.so.0
#11 0x00007fffeff420d8 in g_thread_pool_thread_proxy ()
    at /lib64/libglib-2.0.so.0
#12 0x00007fffeff41745 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#13 0x00007ffff353d52a in start_thread () at /lib64/libpthread.so.0
#14 0x00007fffef90c77d in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7fffba180700 (LWP 3981)):
#0  0x00007ffff35451cd in read () at /lib64/libpthread.so.0
#1  0x00007fffeff605aa in read_ints () at /lib64/libglib-2.0.so.0
#2  0x00007fffeff609cc in fork_exec_with_pipes () at /lib64/libglib-2.0.so.0
#3  0x00007fffeff610ef in g_spawn_sync () at /lib64/libglib-2.0.so.0
#4  0x0000000000507eb6 in _pp_host_get_snmp_devices_thread ()
#5  0x00007ffff04cd6cf in run_in_thread () at /lib64/libgio-2.0.so.0
#6  0x00007ffff04ba546 in io_job_thread () at /lib64/libgio-2.0.so.0
#7  0x00007ffff04ddb95 in g_task_thread_pool_thread ()
    at /lib64/libgio-2.0.so.0
#8  0x00007fffeff420d8 in g_thread_pool_thread_proxy ()
    at /lib64/libglib-2.0.so.0
#9  0x00007fffeff41745 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#10 0x00007ffff353d52a in start_thread () at /lib64/libpthread.so.0
#11 0x00007fffef90c77d in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7fffb897d700 (LWP 3969)):
#0  0x00007fffef906e89 in syscall () at /lib64/libc.so.6
#1  0x00007fffeff5f3d7 in g_cond_wait_until () at /lib64/libglib-2.0.so.0
#2  0x00007fffefeefc09 in g_async_queue_pop_intern_unlocked ()
    at /lib64/libglib-2.0.so.0
#3  0x00007fffeff420b0 in g_thread_pool_thread_proxy ()
    at /lib64/libglib-2.0.so.0
#4  0x00007fffeff41745 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#5  0x00007ffff353d52a in start_thread () at /lib64/libpthread.so.0
#6  0x00007fffef90c77d in clone () at /lib64/libc.so.6
Thread 4 (Thread 0x7fffc0be7700 (LWP 3769)):
#0  0x00007fffef9011dd in poll () at /lib64/libc.so.6
#1  0x00007fffeff1ae34 in g_main_context_iterate.isra ()
    at /lib64/libglib-2.0.so.0
#2  0x00007fffeff1af4c in g_main_context_iteration ()
    at /lib64/libglib-2.0.so.0
#3  0x00007fffc0eeb24d in dconf_gdbus_worker_thread ()
    at /usr/lib64/gio/modules/libdconfsettings.so
#4  0x00007fffeff41745 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#5  0x00007ffff353d52a in start_thread () at /lib64/libpthread.so.0
#6  0x00007fffef90c77d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fffc19f1700 (LWP 3603)):
#0  0x00007fffef9011dd in poll () at /lib64/libc.so.6
#1  0x00007fffeff1ae34 in g_main_context_iterate.isra ()
    at /lib64/libglib-2.0.so.0
#2  0x00007fffeff1af4c in g_main_context_iteration ()
    at /lib64/libglib-2.0.so.0
#3  0x00007fffeff1af89 in glib_worker_main () at /lib64/libglib-2.0.so.0
#4  0x00007fffeff41745 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#5  0x00007ffff353d52a in start_thread () at /lib64/libpthread.so.0
#6  0x00007fffef90c77d in clone () at /lib64/libc.so.6
---Type <return> to continue, or q <return> to quit---

Thread 2 (Thread 0x7fffc9eb8700 (LWP 3602)):
#0  0x00007fffef9011dd in poll () at /lib64/libc.so.6
#1  0x00007fffeff1ae34 in g_main_context_iterate.isra ()
    at /lib64/libglib-2.0.so.0
#2  0x00007fffeff1b1c2 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#3  0x00007ffff0535d56 in gdbus_shared_thread_func () at /lib64/libgio-2.0.so.0
#4  0x00007fffeff41745 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#5  0x00007ffff353d52a in start_thread () at /lib64/libpthread.so.0
#6  0x00007fffef90c77d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7ffff7f1aa80 (LWP 3596)):
#0  0x0000000000500a20 in get_lpd_devices_cb ()
#1  0x00007ffff04dd3db in g_task_return_now () at /lib64/libgio-2.0.so.0
#2  0x00007ffff04dd3f9 in complete_in_idle_cb () at /lib64/libgio-2.0.so.0
#3  0x00007fffeff1aafb in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#4  0x00007fffeff1ae98 in g_main_context_iterate.isra ()
    at /lib64/libglib-2.0.so.0
#5  0x00007fffeff1af4c in g_main_context_iteration ()
    at /lib64/libglib-2.0.so.0
#6  0x00007ffff050007c in g_application_run () at /lib64/libgio-2.0.so.0
#7  0x000000000044c51b in main ()

