Bug 604391 – Gtk-CRITICAL **: gtk_widget_is_ancestor: assertion `ancestor != NULL' when switching between tab

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Bug 604391 - Gtk-CRITICAL **: gtk_widget_is_ancestor: assertion `ancestor != NULL' when switching between tab


Summary:	Gtk-CRITICAL **: gtk_widget_is_ancestor: assertion `ancestor != NULL' when sw...


Status:	RESOLVED FIXED

Product:	gtk+
Classification:	Platform
Component:	Widget: GtkNotebook
Version:	2.20.x
Hardware:	Other Linux

Importance:	Normal normal
Target Milestone:	---
Assigned To:	gtk-bugs
QA Contact:	gtk-bugs

URL:
Whiteboard:

Duplicates:	617549 (view as bug list)
Depends on:
Blocks:

Reported:	2009-12-11 20:10 UTC by Baptiste Mille-Mathias
Modified:	2010-07-19 13:31 UTC

See Also:
GNOME target:	---
GNOME version:	---

Attachments
proposed patch (942 bytes, patch) 2010-03-23 13:47 UTC, Christian Persch	none	Details \| Review
Fix critical warnings on scroll events (820 bytes, patch) 2010-07-05 23:10 UTC, Christian Persch	committed	Details \| Review

Description Baptiste Mille-Mathias 2009-12-11 20:10:31 UTC

each time I switch to a tab, the following warning is displayed:
Gtk-CRITICAL **: gtk_widget_is_ancestor: assertion `ancestor != NULL' when switching between tab.

Tried in evince properties windows, nautilus tab & gtk+ master.

Comment 1 Christian Persch 2009-12-12 10:45:10 UTC

Can you get a backtrace from the warning?

Comment 2 Baptiste Mille-Mathias 2009-12-13 10:02:34 UTC

sure,

Gtk-CRITICAL **: gtk_widget_is_ancestor: assertion `ancestor != NULL' failed
aborting...

Program received signal SIGTRAP, Trace/breakpoint trap.
IA__g_logv (log_domain=<value optimized out>, log_level=G_LOG_LEVEL_CRITICAL, format=0x6b77e5 "%s: assertion `%s' failed", args1=0xbfffe6ac "\306\364;\001)\373:\001\300_#") at gmessages.c:555
555		  g_private_set (g_log_depth, GUINT_TO_POINTER (depth));
(gdb) thread apply all bt

+ Trace 219579

Thread 1 (Thread 0xb7fdb970 (LWP 31353))

#0 IA__g_logv
#1 IA__g_log
at gmessages.c line 569
#2 IA__g_return_if_fail_warning
at gmessages.c line 584
#3 IA__gtk_widget_is_ancestor
at gtkwidget.c line 8223
#4 gtk_notebook_scroll
at gtknotebook.c line 2592
#5 _gtk_marshal_BOOLEAN__BOXED
at gtkmarshalers.c line 84
#6 g_type_class_meta_marshal
at gclosure.c line 878
#7 IA__g_closure_invoke
at gclosure.c line 767
#8 signal_emit_unlocked_R
at gsignal.c line 3285
#9 IA__g_signal_emit_valist
at gsignal.c line 2990
#10 IA__g_signal_emit
at gsignal.c line 3037
#11 gtk_widget_event_internal
at gtkwidget.c line 4938
#12 IA__gtk_propagate_event
at gtkmain.c line 2416
#13 IA__gtk_main_do_event
at gtkmain.c line 1621
#14 gdk_event_dispatch
at gdkevents-x11.c line 2372
#15 g_main_dispatch
at gmain.c line 1960
#16 IA__g_main_context_dispatch
at gmain.c line 2513
#17 g_main_context_iterate
at gmain.c line 2591
#18 IA__g_main_loop_run
at gmain.c line 2799
#19 IA__gtk_main
at gtkmain.c line 1217
#20 main
at nautilus-main.c line 544

Comment 3 Emilio Pozuelo Monfort 2010-03-14 20:14:08 UTC

I get this warning too. It only happens when switching tabs with the mouse wheel, not if I click on the tabs directly.

Comment 4 Christian Persch 2010-03-23 13:47:33 UTC

Created attachment 156866 [details] [review]
proposed patch

Comment 5 Javier Jardón (IRC: jjardon) 2010-05-02 13:38:19 UTC

Still valid in GTK+ 2.20

Comment 6 Javier Jardón (IRC: jjardon) 2010-05-03 19:01:08 UTC

*** Bug 617549 has been marked as a duplicate of this bug. ***

Comment 7 Christian Persch 2010-07-05 23:10:11 UTC

Created attachment 165319 [details] [review]
Fix critical warnings on scroll events

Bug #604391.

Comment 8 Matthias Clasen 2010-07-06 19:09:11 UTC

Comment on attachment 165319 [details] [review]
Fix critical warnings on scroll events

Please commit to gtk-2-22 as well, thanks.

Comment 9 Javier Jardón (IRC: jjardon) 2010-07-19 13:30:45 UTC

Comment on attachment 165319 [details] [review]
Fix critical warnings on scroll events

master: commit 1af1362a369bb79deaeec8d5bf580c97df6c0c87
gtk-2-22: 8f42a13ce79232fa17f1caf2a75fab4947e439af