When I start krdc, it freezes for 10-15 seconds before displaying a list of computers it finds. It's quite annoying, since I can't even connect to any of the bookmarked computers until krdc finishes displaying the results.

Reproducible: Always

Steps to Reproduce:
1. Start krdc
2.
3.
Actual Results:  
All of the UI is frozen for 10-15 seconds.

Expected Results:  
I should be able to use krdc immediately, and zeroconf resolution should be done in the background.

Here's a stacktrace from gdb. Note the "dbus_connection_send_with_reply_and_block" call.

(gdb) bt
#0  0x00007ffff3fbc3cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffff160f450 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#2  0x00007ffff160e31d in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#3  0x00007ffff15f8fc4 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#4  0x00007ffff15fa434 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#5  0x00007ffff15f976c in dbus_connection_send_with_reply_and_block () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#6  0x00007ffff5d750db in q_dbus_connection_send_with_reply_and_block (error=0x7fffffffcb70, timeout_milliseconds=-1, message=0xd77350, connection=<optimized out>)
    at qdbus_symbols_p.h:135
#7  QDBusConnectionPrivate::sendWithReply (this=0x886ee0, message=..., sendMode=1, timeout=-1) at qdbusintegrator.cpp:1907
#8  0x00007ffff5d6182b in QDBusConnection::call (this=this@entry=0xbead98, message=..., mode=mode@entry=QDBus::Block, timeout=<optimized out>) at qdbusconnection.cpp:597
#9  0x00007ffff5d80f96 in QDBusAbstractInterface::callWithArgumentList (this=this@entry=0x7fffffffce90, mode=mode@entry=QDBus::Block, method=..., args=...)
    at qdbusabstractinterface.cpp:468
#10 0x00007ffff6a324b9 in ServiceResolverNew (flags=8, aprotocol=-1, domain=..., type=..., name=..., protocol=-1, interface=-1, this=0x7fffffffce90)
    at ../../dnssd/avahi_server_interface.h:215
#11 DNSSD::RemoteService::resolveAsync (this=0x894980) at ../../dnssd/avahi-remoteservice.cpp:63
#12 0x00007ffff6a2ec1a in DNSSD::ServiceBrowserPrivate::gotNewService (this=0x889c20, name=..., type=..., domain=...) at ../../dnssd/avahi-servicebrowser.cpp:117
#13 0x00007ffff6a2f189 in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at ./avahi-servicebrowser_p.moc:60
#14 DNSSD::ServiceBrowserPrivate::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./avahi-servicebrowser_p.moc:51
#15 0x00007ffff61550ef in QMetaObject::activate (sender=0x8ad150, m=m@entry=0x7ffff6c47bc0 <OrgFreedesktopAvahiServiceBrowserInterface::staticMetaObject>, 
    local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7fffffffd120) at kernel/qobject.cpp:3539
#16 0x00007ffff6a3f807 in OrgFreedesktopAvahiServiceBrowserInterface::ItemNew (this=<optimized out>, _t1=21, _t2=1, _t3=..., _t4=..., _t5=..., _t6=5)
    at avahi_servicebrowser_interface.moc:136
#17 0x00007ffff6a3f95e in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at avahi_servicebrowser_interface.moc:65
#18 OrgFreedesktopAvahiServiceBrowserInterface::qt_static_metacall (_o=0x8ad150, _c=<optimized out>, _id=<optimized out>, _a=0x7fffffffd3c0)
    at avahi_servicebrowser_interface.moc:56
#19 0x00007ffff6a3fb3b in OrgFreedesktopAvahiServiceBrowserInterface::qt_metacall (this=0x8ad150, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffffffd3c0)
    at avahi_servicebrowser_interface.moc:107
#20 0x00007ffff5d71063 in QDBusConnectionPrivate::deliverCall (this=0x886ee0, object=0x8ad150, msg=..., metaTypes=..., slotIdx=8) at qdbusintegrator.cpp:951
#21 0x00007ffff615a5be in QObject::event (this=0x8ad150, e=<optimized out>) at kernel/qobject.cpp:1194
#22 0x00007ffff4c248ec in QApplicationPrivate::notify_helper (this=this@entry=0x66ef40, receiver=receiver@entry=0x8ad150, e=e@entry=0xbecd10) at kernel/qapplication.cpp:4567
#23 0x00007ffff4c2725b in QApplication::notify (this=this@entry=0x7fffffffdee0, receiver=receiver@entry=0x8ad150, e=e@entry=0xbecd10) at kernel/qapplication.cpp:4428
#24 0x00007ffff5931af6 in KApplication::notify (this=0x7fffffffdee0, receiver=0x8ad150, event=0xbecd10) at ../../kdeui/kernel/kapplication.cpp:311
#25 0x00007ffff614063e in QCoreApplication::notifyInternal (this=0x7fffffffdee0, receiver=receiver@entry=0x8ad150, event=event@entry=0xbecd10)
    at kernel/qcoreapplication.cpp:946
#26 0x00007ffff6144171 in sendEvent (event=0xbecd10, receiver=0x8ad150) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#27 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x648400) at kernel/qcoreapplication.cpp:1570
#28 0x00007ffff61444a3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#29 0x00007ffff616ee83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#30 postEventSourceDispatch (s=s@entry=0x6730a0) at kernel/qeventdispatcher_glib.cpp:279
#31 0x00007ffff1a7ff05 in g_main_dispatch (context=0x674430) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3054
#32 g_main_context_dispatch (context=context@entry=0x674430) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3630
#33 0x00007ffff1a80248 in g_main_context_iterate (context=context@entry=0x674430, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>)
    at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3701
#34 0x00007ffff1a80304 in g_main_context_iteration (context=0x674430, may_block=1) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3762
#35 0x00007ffff616f016 in QEventDispatcherGlib::processEvents (this=0x649d60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#36 0x00007ffff4cca1ae in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007ffff613f38f in QEventLoop::processEvents (this=this@entry=0x7fffffffdd40, flags=...) at kernel/qeventloop.cpp:149
#38 0x00007ffff613f618 in QEventLoop::exec (this=this@entry=0x7fffffffdd40, flags=...) at kernel/qeventloop.cpp:204
#39 0x00007ffff6144cf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#40 0x0000000000415ae0 in ?? ()
#41 0x00007ffff3ef0ea5 in __libc_start_main (main=0x415150, argc=1, ubp_av=0x7fffffffe038, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, 
    stack_end=0x7fffffffe028) at libc-start.c:260
#42 0x0000000000415dc9 in _start ()