[Bug 1096289] Re: Qt apps often fail to start from file manager

Hunter Gilbert hunter.b.gilbert at gmail.com
Tue Feb 12 08:37:41 UTC 2013 

This looks to be a race condition before QApplication() is finished.
The following is a stack trace (missing a few debug symbols) from a hung
program.  I notice the call to g_bus_get_sync near the top of the stack,
which a quick search reveals is related to the DBus integration.  Also
possibly related to or the same bug as Bug #1115647

#0  0x00007f33bddfb89c in __lll_lock_wait ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f33bddf709b in _L_lock_1006 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#2  0x00007f33bddf701c in pthread_mutex_lock ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#3  0x00007f33bcb54e21 in g_mutex_lock (mutex=mutex at entry=0x164f1c0)
    at /build/buildd/glib2.0-2.34.1/./glib/gthread-posix.c:208
#4  0x00007f33b6824c2d in initable_init (initable=0x164f1a0, cancellable=0x0, 
    error=0x0) at /build/buildd/glib2.0-2.34.1/./gio/gdbusconnection.c:2527
#5  0x00007f33b68255c1 in g_bus_get_sync (bus_type=<optimized out>, 
    cancellable=0x0, error=0x0)
    at /build/buildd/glib2.0-2.34.1/./gio/gdbusconnection.c:6882
#6  0x00007f33b0e20518 in ?? ()
   from /usr/lib/x86_64-linux-gnu/gio/modules/libgvfsdbus.so
#7  0x00007f33bc1d898f in g_type_create_instance (type=<optimized out>)
    at /build/buildd/glib2.0-2.34.1/./gobject/gtype.c:1890
#8  0x00007f33bc1bd288 in g_object_constructor (type=<optimized out>, 
    n_construct_properties=0, construct_params=0x0)
    at /build/buildd/glib2.0-2.34.1/./gobject/gobject.c:1854
#9  0x00007f33bc1bed41 in g_object_newv (
    object_type=object_type at entry=23889072, n_parameters=n_parameters at entry=0, 
    parameters=parameters at entry=0x0)
    at /build/buildd/glib2.0-2.34.1/./gobject/gobject.c:1637
#10 0x00007f33bc1bf38c in g_object_new (
    object_type=object_type at entry=23889072, 
    first_property_name=first_property_name at entry=0x0)
    at /build/buildd/glib2.0-2.34.1/./gobject/gobject.c:1547
#11 0x00007f33b67bff11 in try_implementation (extension=<optimized out>, 
    verify_func=verify_func at entry=0x7f33b67e8a30 <g_vfs_is_active>)
    at /build/buildd/glib2.0-2.34.1/./gio/giomodule.c:645
#12 0x00007f33b67c00a0 in _g_io_module_get_default (
    extension_point=extension_point at entry=0x7f33b685cb8c "gio-vfs", 
    envvar=envvar at entry=0x7f33b6865222 "GIO_USE_VFS", 
    verify_func=verify_func at entry=0x7f33b67e8a30 <g_vfs_is_active>)
    at /build/buildd/glib2.0-2.34.1/./gio/giomodule.c:742
#13 0x00007f33b67e8e6e in g_vfs_get_default ()
    at /build/buildd/glib2.0-2.34.1/./gio/gvfs.c:199
#14 0x00007f33b67ac6ae in g_file_new_for_path (
    path=0x16ba9b0 "/home/hunter/.config/ibus/bus/462ed6a22686e37540be4d5f51016f7c-unix-0") at /build/buildd/glib2.0-2.34.1/./gio/gfile.c:6092
#15 0x00007f33b1064baa in ?? () from /usr/lib/x86_64-linux-gnu/libibus-1.0.so.0
#16 0x00007f33bc1d898f in g_type_create_instance (type=<optimized out>)
    at /build/buildd/glib2.0-2.34.1/./gobject/gtype.c:1890
#17 0x00007f33bc1bd288 in g_object_constructor (type=<optimized out>, 
    n_construct_properties=0, construct_params=0x0)
    at /build/buildd/glib2.0-2.34.1/./gobject/gobject.c:1854
#18 0x00007f33b1062b45 in ?? () from /usr/lib/x86_64-linux-gnu/libibus-1.0.so.0
#19 0x00007f33bc1bed41 in g_object_newv (
    object_type=object_type at entry=23874144, n_parameters=n_parameters at entry=0, 
    parameters=parameters at entry=0x0)
    at /build/buildd/glib2.0-2.34.1/./gobject/gobject.c:1637
#20 0x00007f33bc1bf38c in g_object_new (object_type=23874144, 
    first_property_name=0x0)
    at /build/buildd/glib2.0-2.34.1/./gobject/gobject.c:1547
#21 0x00007f33b1062b9a in ibus_bus_new ()
   from /usr/lib/x86_64-linux-gnu/libibus-1.0.so.0
#22 0x00007f33b12a70da in ?? ()
   from /usr/lib/x86_64-linux-gnu/gtk-2.0/2.10.0/immodules/im-ibus.so
#23 0x00007f33bc1d6926 in type_class_init_Wm (pclass=0x16af7b0, node=0x16c4600)
    at /build/buildd/glib2.0-2.34.1/./gobject/gtype.c:2217
#24 g_type_class_ref (type=type at entry=23873024)
    at /build/buildd/glib2.0-2.34.1/./gobject/gtype.c:2924
#25 0x00007f33bc1bedf1 in g_object_newv (
    object_type=object_type at entry=23873024, n_parameters=n_parameters at entry=0, 
    parameters=parameters at entry=0x0)
    at /build/buildd/glib2.0-2.34.1/./gobject/gobject.c:1623
#26 0x00007f33bc1bf38c in g_object_new (object_type=23873024, 
    first_property_name=0x0)
    at /build/buildd/glib2.0-2.34.1/./gobject/gobject.c:1547
#27 0x00007f33b12a7b92 in ibus_im_context_new ()
   from /usr/lib/x86_64-linux-gnu/gtk-2.0/2.10.0/immodules/im-ibus.so
#28 0x00007f33b5e0e026 in _gtk_im_module_create (context_id=<optimized out>)
    at /build/buildd/gtk+2.0-2.24.13/gtk/gtkimmodule.c:614
#29 0x00007f33b5e0e909 in gtk_im_multicontext_get_slave (
    multicontext=multicontext at entry=0x1680300)
    at /build/buildd/gtk+2.0-2.24.13/gtk/gtkimmulticontext.c:254
#30 0x00007f33b5e0ebad in gtk_im_multicontext_set_client_window (
    context=0x1680300, window=0x1679120)
    at /build/buildd/gtk+2.0-2.24.13/gtk/gtkimmulticontext.c:300
#31 0x00007f33b5db3fda in gtk_entry_realize (widget=0x1684050)
    at /build/buildd/gtk+2.0-2.24.13/gtk/gtkentry.c:2809
#32 0x00007f33bc1b8140 in g_closure_invoke (closure=0x15f1ba0, 
    return_value=0x0, n_param_values=1, param_values=0x7fffd9f43600, 
    invocation_hint=0x7fffd9f435a0)
    at /build/buildd/glib2.0-2.34.1/./gobject/gclosure.c:777
#33 0x00007f33bc1c8e73 in signal_emit_unlocked_R (node=node at entry=0x15f1bd0, 
    detail=detail at entry=0, instance=instance at entry=0x1684050, 
    emission_return=emission_return at entry=0x0, 
    instance_and_params=instance_and_params at entry=0x7fffd9f43600)
    at /build/buildd/glib2.0-2.34.1/./gobject/gsignal.c:3481
#34 0x00007f33bc1d14af in g_signal_emit_valist (instance=0x1684050, 
    signal_id=<optimized out>, detail=0, 
    var_args=var_args at entry=0x7fffd9f43848)
    at /build/buildd/glib2.0-2.34.1/./gobject/gsignal.c:3300
#35 0x00007f33bc1d1642 in g_signal_emit (instance=instance at entry=0x1684050, 
    signal_id=<optimized out>, detail=detail at entry=0)
    at /build/buildd/glib2.0-2.34.1/./gobject/gsignal.c:3356
#36 0x00007f33b5f465d0 in IA__gtk_widget_realize (widget=0x1684050)
    at /build/buildd/gtk+2.0-2.24.13/gtk/gtkwidget.c:3554
#37 0x00007f33bea32643 in QGtkStylePrivate::addWidgetToMap (
    widget=widget at entry=0x1684050) at styles/qgtkstyle_p.cpp:771
#38 0x00007f33bea32839 in QGtkStylePrivate::addAllSubWidgets (
    widget=0x1684050, v=<optimized out>) at styles/qgtkstyle_p.cpp:785
#39 0x00007f33bea32c55 in QGtkStylePrivate::initGtkWidgets (this=0x15b59e0)
    at styles/qgtkstyle_p.cpp:555
#40 0x00007f33bea17cd9 in QGtkStyle::QGtkStyle (this=0x15af6f0)
    at styles/qgtkstyle.cpp:193
#41 0x00007f33be99ec0b in QStyleFactory::create (key=...)
    at styles/qstylefactory.cpp:177
#42 0x00007f33be6ab9f3 in QApplication::style ()
    at kernel/qapplication.cpp:1467
#43 0x00007f33be6ae375 in QApplicationPrivate::initialize (
    this=this at entry=0x1541d20) at kernel/qapplication.cpp:988
#44 0x00007f33be6ae4b2 in QApplicationPrivate::construct (this=0x1541d20, 
    dpy=dpy at entry=0x0, visual=visual at entry=0, cmap=cmap at entry=0)
    at kernel/qapplication.cpp:840
#45 0x00007f33be6aed74 in QApplication::QApplication (this=0x7fffd9f43c50, 
    argc=@0x7fffd9f43c4c: 1, argv=0x7fffd9f43e08, _internal=17041411)
    at kernel/qapplication.cpp:738
#46 0x00000000004053b7 in main (argc=1, argv=0x7fffd9f43e08)

-- 
You received this bug notification because you are a member of Kubuntu
Bugs, which is subscribed to qt4-x11 in Ubuntu.
https://bugs.launchpad.net/bugs/1096289

Title:
  Qt apps often fail to start from file manager

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/1096289/+subscriptions

More information about the kubuntu-bugs mailing list