Red Hat Bugzilla – Bug 496788
GNOME applications hang and fail to start after a while
Last modified: 2009-12-18 04:18:31 EST
Description of problem:
I have a dual head setup with separate desktops: :0.0 and :0.1. I have 2 rows of 4 virtual desktops on each screen. I usually do my work on :0.0 and read email, idle around in IRC, browse the Web, and keep devhelp running in :0.1.
Since a few updates ago, I have noticed that, after a while (~ 10 - 15 minutes), GNOME applications on :0.1 hang. I have to kill them, and when I start them again (via Alt+F2, appname, Enter), they fail to show up.
Simple applications like gnome-falling-blocks, gcalculator, as well as plain X apps like xterm show up immediately.
gedit shows up, but fails to resize its widgets to the window which is initially maximized, and hangs.
evolution, firefox, and gnome-terminal do not show up at all.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Set up :0.0 and :0.1
2. Log in
3. Run firefox on :0.1
4. Do your work on :0.0
As mentioned above, firefox, evolution, and devhelp, if running successfully, will stop and hang.
Earlier, these applications functioned correctly for an indefinite period of time while running on :0.1. This is the expected behaviour.
I consider this bug quite important, because it disrupts my work.
#0 0x002d0832 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1 0x003d539d in ___newselect_nocancel () from /lib/libc.so.6
#2 0x00fd8e29 in scim_bridge_messenger_receive_message (messenger=0x9a8c1c8, timeout=0x0) at scim-bridge-messenger.c:491
#3 0x00fdc03f in scim_bridge_client_read_and_dispatch () at scim-bridge-client.c:1193
#4 0x00fde3f7 in scim_bridge_client_register_imcontext (imcontext=0x98d9e38) at scim-bridge-client.c:1313
#5 0x00fd5b07 in scim_bridge_client_imcontext_initialize (imcontext=0x98d9e38, klass=0x9a38548) at scim-bridge-client-imcontext-gtk.c:724
#6 0x00c5e7a3 in IA__g_type_create_instance (type=162054704) at gtype.c:1674
#7 0x00c42985 in g_object_constructor (type=162054704, n_construct_properties=0, construct_params=0x0) at gobject.c:1334
#8 0x00c431b3 in IA__g_object_newv (object_type=162054704, n_parameters=0, parameters=0x0) at gobject.c:1211
#9 0x00c43d87 in IA__g_object_new_valist (object_type=162054704, first_property_name=0x0, var_args=0xbf9e4348 "") at gobject.c:1274
#10 0x00c43efe in IA__g_object_new (object_type=162054704, first_property_name=0x0) at gobject.c:1056
#11 0x00fd59c5 in scim_bridge_client_imcontext_new () at scim-bridge-client-imcontext-gtk.c:691
#12 0x00fd562b in im_module_create (context_id=<value optimized out>) at im-scim-bridge-gtk.c:86
#13 0x07b1bda1 in _gtk_im_module_create (context_id=0x9a21d30 "scim-bridge") at gtkimmodule.c:602
#14 0x07b1cad8 in gtk_im_multicontext_get_slave (multicontext=0x9a0b3b0) at gtkimmulticontext.c:236
#15 0x07b1ce1e in gtk_im_multicontext_get_preedit_string (context=0x9a0b3b0, str=0xbf9e4488, attrs=0xbf9e4484, cursor_pos=0xbf9e4480) at gtkimmulticontext.c:301
#16 0x07b1951a in IA__gtk_im_context_get_preedit_string (context=0x9a0b3b0, str=0xbf9e4488, attrs=0xbf9e4484, cursor_pos=0xbf9e4480) at gtkimcontext.c:263
#17 0x07bf8ae5 in gtk_text_view_preedit_changed_handler (context=0x9a0b3b0, text_view=0x9a27080) at gtktextview.c:7239
#18 0x00c4a984 in IA__g_cclosure_marshal_VOID__VOID (closure=0x9a2b238, return_value=0x0, n_param_values=1, param_values=0x9a33078, invocation_hint=0xbf9e461c, marshal_data=0x7bf8a70)
#19 0x00c3d1fb in IA__g_closure_invoke (closure=0x9a2b238, return_value=0x0, n_param_values=1, param_values=0x9a33078, invocation_hint=0xbf9e461c) at gclosure.c:767
#20 0x00c53655 in signal_emit_unlocked_R (node=0x9a07ab0, detail=0, instance=0x9a0b3b0, emission_return=0x0, instance_and_params=0x9a33078) at gsignal.c:3244
#21 0x00c54d6c in IA__g_signal_emit_valist (instance=0x9a0b3b0, signal_id=288, detail=0, var_args=0xbf9e4818 "") at gsignal.c:2977
#22 0x00c5508d in IA__g_signal_emit_by_name (instance=0x9a0b3b0, detailed_signal=0x7cd9895 "preedit-changed") at gsignal.c:3071
#23 0x07b1c570 in gtk_im_multicontext_set_slave (multicontext=0x9a0b3b0, slave=0x0, finalizing=0) at gtkimmulticontext.c:219
#24 0x07b1cd10 in gtk_im_multicontext_focus_in (context=0x9a0b3b0) at gtkimmulticontext.c:340
#25 0x07b193d6 in IA__gtk_im_context_focus_in (context=0x9a0b3b0) at gtkimcontext.c:310
#26 0x07bf08fc in gtk_text_view_focus_in_event (widget=0x9a27080, event=0x98d9ed8) at gtktextview.c:4364
#27 0x07b365e6 in _gtk_marshal_BOOLEAN__BOXED (closure=0x97fac88, return_value=0xbf9e4a80, n_param_values=2, param_values=0x9a35f90, invocation_hint=0xbf9e4a6c, marshal_data=0x7bf0850)
#28 0x00c3b959 in g_type_class_meta_marshal (closure=0x97fac88, return_value=0xbf9e4a80, n_param_values=2, param_values=0x9a35f90, invocation_hint=0xbf9e4a6c, marshal_data=0xe0)
#29 0x00c3d128 in IA__g_closure_invoke (closure=0x97fac88, return_value=0xbf9e4a80, n_param_values=2, param_values=0x9a35f90, invocation_hint=0xbf9e4a6c) at gclosure.c:767
#30 0x00c532fd in signal_emit_unlocked_R (node=0x97fad98, detail=0, instance=0x9a27080, emission_return=0xbf9e4bb8, instance_and_params=0x9a35f90) at gsignal.c:3282
#31 0x00c54beb in IA__g_signal_emit_valist (instance=0x9a27080, signal_id=44, detail=0, var_args=0xbf9e4c10 "(L\236��\236\215\t\200p�\t\206\034�\a\200p�\t\200s\177\t") at gsignal.c:2987
#32 0x00c551e6 in IA__g_signal_emit (instance=0x9a27080, signal_id=44, detail=0) at gsignal.c:3034
#33 0x07c4b98e in gtk_widget_event_internal (widget=0x9a27080, event=0x98d9ed8) at gtkwidget.c:4745
#34 0x07c5b7a2 in do_focus_change (widget=0x9a27080, in=1) at gtkwindow.c:5081
#35 0x07c5dc25 in _gtk_window_set_is_active (window=0x981e000, is_active=<value optimized out>) at gtkwindow.c:8142
#36 0x07c5dcd0 in gtk_window_focus_in_event (widget=0x981e000, event=0x98fbda0) at gtkwindow.c:5103
#37 0x07b365e6 in _gtk_marshal_BOOLEAN__BOXED (closure=0x97fac88, return_value=0xbf9e4e60, n_param_values=2, param_values=0x9a35af0, invocation_hint=0xbf9e4e4c, marshal_data=0x7c5dc90)
#38 0x00c3b959 in g_type_class_meta_marshal (closure=0x97fac88, return_value=0xbf9e4e60, n_param_values=2, param_values=0x9a35af0, invocation_hint=0xbf9e4e4c, marshal_data=0xe0)
#39 0x00c3d1fb in IA__g_closure_invoke (closure=0x97fac88, return_value=0xbf9e4e60, n_param_values=2, param_values=0x9a35af0, invocation_hint=0xbf9e4e4c) at gclosure.c:767
#40 0x00c532fd in signal_emit_unlocked_R (node=0x97fad98, detail=0, instance=0x981e000, emission_return=0xbf9e4f98, instance_and_params=0x9a35af0) at gsignal.c:3282
#41 0x00c54beb in IA__g_signal_emit_valist (instance=0x981e000, signal_id=44, detail=0, var_args=0xbf9e4ff0 "\bP\236���\217\t") at gsignal.c:2987
#42 0x00c551e6 in IA__g_signal_emit (instance=0x981e000, signal_id=44, detail=0) at gsignal.c:3034
#43 0x07c4b98e in gtk_widget_event_internal (widget=0x981e000, event=0x98fbda0) at gtkwidget.c:4745
#44 0x07b30597 in IA__gtk_main_do_event (event=0x98fbda0) at gtkmain.c:1574
#45 0x07f3030a in gdk_event_dispatch (source=0x97d9020, callback=0, user_data=0x0) at gdkevents-x11.c:2365
#46 0x00527258 in g_main_dispatch () at gmain.c:2144
#47 IA__g_main_context_dispatch (context=0x97d9068) at gmain.c:2697
This is a backtrace I got by attaching to a hung gedit. It looks like the problem is with SCIM. Suspecting this, I killed scim and re-started it and, sure enough, things are now working. It's not the whole backtrace. It said "type <return> to continue", but I didn't because I wanted to test whether re-starting SCIM fixed things.
Nonetheless, I don't want to keep having to re-start SCIM all the time.
Alright ... right-clicking on SCIM and clicking Exit, which causes SCIM to be immediately restarted, and fixes the hangages does not seem like such a high price to pay. I'd consider this a workaround - for now.
F11 has a newer scim-bridge package and there is an even newer one in dist-f12 in koji which you might like to test. If they help we can certainly backport them to f10 also.
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