35112 - Gdk-CRITICAL 'gc != NULL' and 'window != NULL' errors from closing browser window

Status: VERIFIED WORKSFORME

(Core :: XUL, defect, P3)

Description

[Chris Siebenmann]

Recipee for reproduction: start today's Linux drop on
http://www.mozilla.org/ (build ID 2000040708). Pick the
'Report Bugs' link. Select something in the bug reports
database to search on that will yield results, like
'character'; click Search, and it opens in a second window.
Alt-W to close the first window. The second window will
now report:
	Gdk-CRITICAL **: file gdkwindow.c: line 1707 (gdk_window_get_parent): assertion
`window != NULL' failed.
and	Gdk-CRITICAL **: file gdkgc.c: line 288 (gdk_gc_unref): assertion `gc !=
NULL' failed.
in various quantities, depending on what you try to do in
the remaining window (click on the scrollbar, click in the
window, etc). Sometimes, but not always, the window can be
closed with Alt-W, but sometimes Mozilla must be ^C'd.

 It appears to require having the non-closed window be opened
via Javascript; button-2'ing a random link failed to reproduce
this, but I can do it all the time with the 'Report Bugs' page
and the Javascript bug searcher.

Environment: Redhat Linux 6.1 (updated to errata GNOME RPMs) and
Redhat Linux 6.2.

Comment 1

[Peter Trudelle]

confirming and reassigning to danm for consideration, cc pavlov.  Does this
cause any real problems in the opt builds?

Comment 2

[Peter Trudelle]

moving to m18

Comment 3

[Peter Trudelle]

mass-moving all bugs to m21 that are not dofood+, or nsbeta2+

Comment 4

[Dan M]

  Today's build oddly opens three windows, two of which are the same page of 
search results. But all can be closed with Alt-W and none cause errors when 
closed. RedHat 6.0.

Comment 5

[John Morrison]

Yep, not seeing this error. Verified worksforme.

(By the way, the duplicate windows are due to the JS in the page -- there is 
an onchange handler for the text field which calls the same handler as the 
submit button -- so typing in text and clicking on submit means that 
(ultimately) two window.open()s are called. Not a bug in mozilla, but not the 
right logic in the page).