71833 - GTK related crash

Status: RESOLVED DUPLICATE of bug 72069

(Core :: XUL, defect)

Description

[R.K.Aa.]

CVS build from march 13th, 03:30

I've had many GTK related crashes the past 24 hours or so, 4 different builds
from this timespan all had them.
Hard to say what exactly triggers it. Has happened on startup, when back-button
was clicked, when link was clicked, when i hit ctrl+n.

Program received signal SIGSEGV, Segmentation fault.
0x40b2a08e in handle_gdk_event () from
/home/dark/DISK/mozilla/dist/bin/components/libwidget_gtk.so
(gdb) bt
#0  0x40b2a08e in handle_gdk_event () from
/home/dark/DISK/mozilla/dist/bin/components/libwidget_gtk.so
#1  0x4057053b in gdk_event_dispatch () from /usr/lib/libgdk-1.2.so.0
#2  0x4059d186 in g_main_dispatch () from /usr/lib/libglib-1.2.so.0
#3  0x4059d751 in g_main_iterate () from /usr/lib/libglib-1.2.so.0
#4  0x4059d8f1 in g_main_run () from /usr/lib/libglib-1.2.so.0
#5  0x404c57b9 in gtk_main () from /usr/lib/libgtk-1.2.so.0
#6  0x40b22630 in nsAppShell::Run () from
/home/dark/DISK/mozilla/dist/bin/components/libwidget_gtk.so
#7  0x410e647a in nsAppShellService::Run () from
/home/dark/DISK/mozilla/dist/bin/components/libnsappshell.so
#8  0x804dc60 in main1 ()
#9  0x804e465 in main ()
#10 0x4024b9cb in __libc_start_main (main=0x804e338 <main>, argc=1,
argv=0xbffff5e4, init=0x804ae24 <_init>, 
    fini=0x80546cc <_fini>, rtld_fini=0x4000aea0 <_dl_fini>, stack_end=0xbffff5dc)
    at ../sysdeps/generic/libc-start.c:92
------

Now and then an error display in console sometime before crash - samples:
Gtk-WARNING **: invalid cast from `(unknown)' to `GtkObject'

Gtk-CRITICAL **: file gtkwidget.c: line 2725 (gtk_widget_event): assertion
`GTK_IS_WIDGET (widget)' failed

Not seen the problem before. I build moz fairly often. RH6.2/Gtk+ 1.2.8

Comment 1

[R.K.Aa.]

It happens more "reliably" in connection with window-creation.

Comment 2

[Oliver Klee]

Adding crash keyword.

Comment 3

[John Morrison]

cc: blizzard, since it happens in event code (which may have nothing to do 
with his recent checkin).

Comment 4

[Peter Trudelle]

->pav, gtk module owner

Comment 5

[R.K.Aa.]

when changing focus from/to a newly created loading window, i often see one of
these:

Gtk-CRITICAL **: file gtkmain.c: line 1279 (gtk_propagate_event): assertion
`GTK_IS_WIDGET (widget)' failed.

Gtk-CRITICAL **: file gtkwidget.c: line 2725 (gtk_widget_event): assertion
`GTK_IS_WIDGET (widget)' failed.

Comment 6

[R.K.Aa.]

FWIW: only using common build param's:
ac_add_options --disable-tests
ac_add_options --disable-debug
ac_add_options --enable-optimize

Comment 7

[R.K.Aa.]

Downloaded mozilla-i686-pc-linux-gnu-sea.tar.gz 2001-031321 as a sanity check:
The errors and crash happens there too.

Comment 8

[Christopher Blizzard (:blizzard)]

My build on March 14th doesn't get these errors.  Also, my event patch wouldn't
cause these errors.  That path isn't in the stack trace provided.

Comment 9

[R.K.Aa.]

simply hitting ctrl+n causes it. Browser set to load blank page as homepage.

hit ctrl+n from a window i'd been browsing bugzilla with for some minutes. Got:
Gtk-CRITICAL **: file gtkwidget.c: line 2725 (gtk_widget_event): assertion
`GTK_IS_WIDGET (widget)' failed.

Close that window. Hit ctrl+n again. Got:
Gtk-CRITICAL **: file gtkmain.c: line 1279 (gtk_propagate_event): assertion
`GTK_IS_WIDGET (widget)' failed.

Close that too, hit ctrl+n again. Got:
Gtk-WARNING **: invalid class type `(unknown)' in cast to `GtkObject'

(All three times the window was created, partly with additional error message
"Error loading URL about:blank: 804b0002". Closing the window and ctrl+n again
spawns:
Error loading URL about:blank: 804b0002 
Document about:blank loaded successfully
Gtk-WARNING **: invalid cast from `(unknown)' to `GtkObject'

As i test this, error repeats 100% consistantly, but only the last error goes on
displaying when i continue out over the third attempt.

Comment 10

[R.K.Aa.]

I see the assertions under a clean KDE 2.1 for RH6.2 as well.

Comment 11

[R.K.Aa.]

This crash happens so frequently here it smells like a messed up gtk or glib
install. Upgraded to 1.2.9 now, rebuilding moz from scratch.
Since nobody else see these crashes: Resolving as invalid.

Comment 12

[John Morrison]

Okay, thanks.

Comment 13

[R.K.Aa.]

Oh well.. just so others don't waste their time upgrading: it didn't help.

Comment 14

[Christopher Blizzard (:blizzard)]

Should be marked dup

Comment 15

[Christopher Blizzard (:blizzard)]

*** This bug has been marked as a duplicate of 72069 ***