237433 - Hang part way through drawing the 'Edit request' page - after clicking on 'Firefox' in the listbox

Status: RESOLVED DUPLICATE of bug 236947

(Firefox :: General, defect)

Description

[Ben Fowler]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7b) Gecko/20040313 Firefox/0.8.0+
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7b) Gecko/20040313 Firefox/0.8.0+

I had just looked at the "Today's" bugs page and went to the Edit request page
to select just Firefox bugs over a longer time frame, the page would not draw 
properly when I clicked on 'Firefox' in the listbox and after many minutes of
Firefox taking 100% of CPU, I broke into it with gdb and found:

Reading symbols for shared libraries ..................................... done
                                                                          
0x12c428d0 in nsBlockFrame::GetFirstLineContaining(int) (this=0x12435ea4, y=15)
at ../../../../../src/layout/html/base/src/nsBlockFrame.cpp:5694
5694      while ((cursorArea.IsEmpty() || cursorArea.YMost() > y)
(gdb) list
5689      nsLineBox* property = NS_STATIC_CAST(nsLineBox*,
5690        GetProperty(GetPresContext(), nsLayoutAtoms::lineCursorProperty,
PR_FALSE));
5691      line_iterator cursor = mLines.begin(property);
5692      nsRect cursorArea = cursor->GetCombinedArea();
5693
5694      while ((cursorArea.IsEmpty() || cursorArea.YMost() > y)
5695             && cursor != mLines.front()) {
5696        cursor = cursor.prev();
5697        cursorArea = cursor->GetCombinedArea();
5698      }
Current language:  auto; currently c++

This is yesterday's build which has the same UA as above.

Reproducible: Didn't try
Steps to Reproduce:
See above
Actual Results:  
Hang

Expected Results:  
Page should have fully rendered

Comment 1

[Hiro]

It may be repaired with the patch of bug236947.
http://bugzilla.mozilla.org/attachment.cgi?id=143846&action=view

Comment 2

[Ben Fowler]

Yes.

I have tried to reproduce it and can't. I did try a search in Bugzilla on
'Hang' knowing the filename and lines of code in question, and a webpage
that evinced the problem - still didn't see the original!

Ben

Comment 3

[HARUNAGA Hirotoshi]

WFM with Firefox 20040315/Mac.
same as bug 236947.

*** This bug has been marked as a duplicate of 236947 ***