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Bug 150803 - Console warnings on tab switching
Console warnings on tab switching
Status: RESOLVED FIXED
Product: galeon
Classification: Deprecated
Component: general
1.3.17
Other Linux
: Normal normal
: 1.3.18
Assigned To: galeon-maint
galeon-maint
Depends on:
Blocks:
 
 
Reported: 2004-08-22 23:02 UTC by Thomas Zajic
Modified: 2004-12-22 21:47 UTC
See Also:
GNOME target: ---
GNOME version: ---

Attachments
check for group != NULL (372 bytes, patch)
2004-08-23 17:52 UTC, Tommi Komulainen 		none Details | Review

Description Thomas Zajic 2004-08-22 23:02:41 UTC 
Environment: Galeon-1.3.17, Mozilla-1.7.2 (GTK+2), GNOME-2.6 (not actually
running a GNOME session, though), everything self-compiled, on a Slackware-8.1
system.

With several tabs open, Galeon eventually starts printing the following error
messages to the console when switching back and forth between tabs:

[zlatko@disclosure]:~$ galeon

(galeon:28199): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(galeon:28199): GLib-GObject-CRITICAL **: file gsignal.c: line 2121
(g_signal_emit_valist): assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

(galeon:28199): Gtk-WARNING **: GaleonCSSNoneActionItem: missing action

(galeon:28199): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(galeon:28199): GLib-GObject-CRITICAL **: file gsignal.c: line 2121
(g_signal_emit_valist): assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

(galeon:28199): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(galeon:28199): GLib-GObject-CRITICAL **: file gsignal.c: line 2121
(g_signal_emit_valist): assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

(galeon:28199): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(galeon:28199): GLib-GObject-CRITICAL **: file gsignal.c: line 2121
(g_signal_emit_valist): assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

(galeon:28199): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(galeon:28199): GLib-GObject-CRITICAL **: file gsignal.c: line 2121
(g_signal_emit_valist): assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

(galeon:28199): Gtk-WARNING **: GaleonCSSNoneActionItem: missing action
[zlatko@disclosure]:~$

In this case, I've had the following URLs opened in tabs (from left to right):

http://unix.freshmeat.net/daily/2004/08/22/
http://xpenguins.seul.org/
http://icculus.org/~ravage/mohaa/
http://galeon.sourceforge.net/Main/GaleonDevelopment
http://bugzilla.gnome.org/show_bug.cgi?id=132381
http://www.spamcop.net/

As I'm rather sensitive to bugs in Galeon's tab handling (see the a.m.
bugzilla.gnome.org URL ;-), I thought I'd report this. I already have a debug
build ready (CFLAGS=-g CXXFLAGS=-g ./configure), but I'm not sure what to do
with it (Galeon doesn't actually crash, so I don't know how to get a proper
backtrace - yup, I'm not a gdb wizard).

One thing that I did notice with the debug build, though, is that the
"GaleonCSSNoneActionItem: missing action" lines are _not_ printed, only the
"invalid (NULL) pointer instance" and "assertion `G_TYPE_CHECK_INSTANCE
(instance)' failed" lines. I have no idea whether this is actually meaningful or
just pure coincidence.
Comment 1 Tommi Komulainen 2004-08-23 05:18:35 UTC 
Someone mentioned the javascript related crash might have resurfaced, this could
be it but I'm not certain.

You can run galeon with '--g-fatal-warnings' command line option and it will
abort on the first WARNING message.  After that bug-buddy (or gdb if run in it
manually) can get the backtrace.
Comment 2 Thomas Zajic 2004-08-23 06:41:00 UTC 
Done - here's the bug-buddy backtrace:

Backtrace was generated from '/usr/local/bin/galeon'

0x40fba089 in wait4 () from /lib/libc.so.6

+ Trace 49556

  • #0 wait4
    from /lib/libc.so.6
  • #1 __check_rhosts_file
    from /lib/libc.so.6
  • #2 waitpid
    from /lib/libpthread.so.0
  • #3 libgnomeui_segv_handle
    from /usr/local/lib/libgnomeui-2.so.0
  • #4 nsProfileLock::FatalSignalHandler
    from /usr/local/lib/mozilla-1.7.2/libgtkembedmoz.so
  • #5 pthread_kill
    from /lib/libpthread.so.0
  • #6 sigaction
    from /lib/libc.so.6
  • #7 raise
    from /lib/libpthread.so.0
  • #8 abort
    from /lib/libc.so.6
  • #9 g_logv
    from /usr/local/lib/libglib-2.0.so.0
  • #10 g_log
    from /usr/local/lib/libglib-2.0.so.0
  • #11 g_type_check_instance
    from /usr/local/lib/libgobject-2.0.so.0
  • #12 g_signal_emit_valist
    from /usr/local/lib/libgobject-2.0.so.0
  • #13 g_signal_emit
    from /usr/local/lib/libgobject-2.0.so.0
  • #14 _gtk_action_group_emit_disconnect_proxy
    from /usr/local/lib/libgtk-x11-2.0.so.0
  • #15 disconnect_proxy
    from /usr/local/lib/libgtk-x11-2.0.so.0
  • #16 disconnect_proxy
    from /usr/local/lib/libgtk-x11-2.0.so.0
  • #17 gtk_action_connect_proxy
    from /usr/local/lib/libgtk-x11-2.0.so.0
  • #18 update_node
    from /usr/local/lib/libgtk-x11-2.0.so.0
  • #19 update_node
    from /usr/local/lib/libgtk-x11-2.0.so.0
  • #20 update_node
    from /usr/local/lib/libgtk-x11-2.0.so.0
  • #21 update_node
    from /usr/local/lib/libgtk-x11-2.0.so.0
  • #22 update_node
    from /usr/local/lib/libgtk-x11-2.0.so.0
  • #23 update_node
    from /usr/local/lib/libgtk-x11-2.0.so.0
  • #24 do_updates
    from /usr/local/lib/libgtk-x11-2.0.so.0
  • #25 gtk_ui_manager_ensure_update
    from /usr/local/lib/libgtk-x11-2.0.so.0
  • #26 galeon_css_menu_rebuild
    at galeon-css-menu.c line 286
  • #27 galeon_css_menu_rebuild_timeout_cb
    at galeon-css-menu.c line 298
  • #28 g_timeout_dispatch
    from /usr/local/lib/libglib-2.0.so.0
  • #29 g_main_dispatch
    from /usr/local/lib/libglib-2.0.so.0
  • #30 g_main_context_dispatch
    from /usr/local/lib/libglib-2.0.so.0
  • #31 g_main_context_iterate
    from /usr/local/lib/libglib-2.0.so.0
  • #32 g_main_loop_run
    from /usr/local/lib/libglib-2.0.so.0
  • #33 bonobo_main
    from /usr/local/lib/libbonobo-2.so.0
  • #34 main
    at galeon-main.c line 197
  • #35 __libc_start_main
    from /lib/libc.so.6 






Comment 3


Tommi Komulainen





          2004-08-23 16:51:14 UTC
        



Hmm, well, I can reproduce this by opening the mentioned URLs and switching
between tabs quickly for a while with Alt+<number> ..  I'm guessing something
funny happens with the timeout.






Comment 4


Tommi Komulainen





          2004-08-23 17:11:08 UTC
        



More debugging symbols:

Backtrace was generated from '/opt/gnome/bin/galeon'

[New Thread 1088593792 (LWP 18868)]
[New Thread 1119738672 (LWP 18879)]
[New Thread 1107131184 (LWP 18870)]
0xffffe002 in ?? ()




+
Trace
    49573






Thread 1
          (Thread 1088593792 (LWP 18868))


    

  • 
#0
??

    • 

  • 
#1
libgnomeui_segv_handle

    
                at gnome-ui-init.c
                  line
                  741

    

    • 

  • 
#2
nsProfileLock::FatalSignalHandler(int)

    
                from
                /usr/lib/mozilla-1.7.2/libgtkembedmoz.so

    

    • 

  • 
#3
<signal handler called>

    • 

  • 
#4
??

    • 

  • 
#5
abort

    
                from
                /lib/tls/libc.so.6

    

    • 

  • 
#6
g_logv

    • 

  • 
#7
g_log

    • 

  • 
#8
g_type_check_instance

    
                at gtype.c
                  line
                  3229

    

    • 

  • 
#9
g_signal_emit_valist

    
                at gsignal.c
                  line
                  2121

    

    • 

  • 
#10
g_signal_emit

    
                at gsignal.c
                  line
                  2238

    

    • 

  • 
#11
_gtk_action_group_emit_disconnect_proxy

    
                at gtkactiongroup.c
                  line
                  1110

    

    • 

  • 
#12
disconnect_proxy

    
                at gtkaction.c
                  line
                  954

    

    • 

  • 
#13
disconnect_proxy

    
                at gtktoggleaction.c
                  line
                  298

    

    • 

  • 
#14
gtk_action_connect_proxy

    
                at gtkaction.c
                  line
                  1096

    

    • 

  • 
#15
update_node

    
                at gtkuimanager.c
                  line
                  2371

    

    • 

  • 
#16
update_node

    
                at gtkuimanager.c
                  line
                  2512

    

    • 

  • 
#17
update_node

    
                at gtkuimanager.c
                  line
                  2512

    

    • 

  • 
#18
update_node

    
                at gtkuimanager.c
                  line
                  2512

    

    • 

  • 
#19
update_node

    
                at gtkuimanager.c
                  line
                  2512

    

    • 

  • 
#20
update_node

    
                at gtkuimanager.c
                  line
                  2512

    

    • 

  • 
#21
do_updates

    
                at gtkuimanager.c
                  line
                  2552

    

    • 

  • 
#22
galeon_css_menu_rebuild

    
                at ../../src/galeon-css-menu.c
                  line
                  286

    

    • 

  • 
#23
galeon_css_menu_rebuild_timeout_cb

    
                at ../../src/galeon-css-menu.c
                  line
                  298

    

    • 

  • 
#24
g_timeout_dispatch

    
                at gmain.c
                  line
                  3301

    

    • 

  • 
#25
g_main_dispatch

    
                at gmain.c
                  line
                  1942

    

    • 

  • 
#26
g_main_context_dispatch

    
                at gmain.c
                  line
                  2492

    

    • 

  • 
#27
g_main_context_iterate

    
                at gmain.c
                  line
                  2573

    

    • 

  • 
#28
g_main_loop_run

    
                at gmain.c
                  line
                  2777

    

    • 

  • 
#29
bonobo_main

    
                at bonobo-main.c
                  line
                  297

    

    • 

  • 
#30
main

    
                at ../../src/galeon-main.c
                  line
                  197

    

    • 

  • 
#31
__libc_start_main

    
                from
                /lib/tls/libc.so.6

    

    • 

  • 
#0
??

    • 













Comment 5


Tommi Komulainen





          2004-08-23 17:52:18 UTC
        



Created attachment 30866 [details] [review]
check for group != NULL

This patch against gtk+ gets rid of most of the warnings, but the 'missing
action' one still persists.






Comment 6


Crispin Flowerday (not receiving bugmail)





          2004-08-23 19:04:46 UTC
        



Thanks very much for the bug report. I have fixed the real problem in CVS, which
was a collision of action names:

http://lists.gnome.org/archives/cvs-commits-list/2004-August/msg06144.html