192457 - browser freezes when ctrl - + (text zoom)

Status: RESOLVED FIXED

(Core :: Web Painting, defect)

Description

[pontus enhager]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3b) Gecko/20030103
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3b) Gecko/20030103

Going to mentioned page and trying to increase fomt size freezes the 
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3b) Gecko/20030103 (GTk2+xft-build)
and the
Mozilla 1.3b, Copyright (c) 2003 mozilla.org, build 2003020622 (nightly ordinary) 

CPU-utilisation goes to 100%

Reproducible: Always

Steps to Reproduce:
1.goto http://www.soic.se/sidor/framtid/rekrytering1.asp
2.press ctrl-+ to increase font size
3.zapp!

Actual Results:  
The CPU-utilisation goes to 100% and the browser freezes

Expected Results:  
increase font size ??

Comment 1

[Olivier Cahagne]

confirming using build 2003020704 on Win2k.

Comment 2

[Michael Jonker]

confirming on build 2003020808

I noticed that increasing fontsize works fine on the above ULR when javascript
is disabled.

Comment 3

[Andrew Schultz]

Attachment: stacktrace during hang

Comment 4

[Andrew Schultz]

Attachment: DHTML testcase

testcase hangs linux trunk 20030208.  equivalent (non-JS) HTML did not seem to
have a problem.

Comment 5

[Andrew Schultz]

and to reproduce with the testcase, just increase (or decrease) font size via
<ctrl>+ or <ctrl>-

==> layout/views 

Comment 6

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

At first glance this seems to be some sort of mangled view tree leading to an
infinite loop in UpdateViewProperties, but gdb might have been lying.

Comment 7

[Felix Miata]

Original URL hangs OS/2 trunk 2003020812.

Comment 8

[Andrew Schultz]

this regressed between 2003011404 and 200301522.  backing out bug 172031 didn't
help.  perhaps bug 173072

Comment 9

[Robert O'Callahan (:roc) (email my personal email if necessary)]

It can't be the fix for bug 173072 because that was checked in in 2002.

Comment 10

[Andrew Schultz]

I meant to say 2002121404 and 2002121522

Comment 11

[Robert O'Callahan (:roc) (email my personal email if necessary)]

The problem here is that setting the z-index of the views reorders them while
we're iterating over them! So the loop never gets to the end because views we
already processed keep getting moved to the end of the list.

The fix is to not reorder views when we set the z-index. I already have a patch
for this and it does fix the bug. The patch is in bug 180502.

Comment 12

[R.K.Aa.]

*** Bug 193424 has been marked as a duplicate of this bug. ***

Comment 13

[R.K.Aa.]

*** Bug 194374 has been marked as a duplicate of this bug. ***

Comment 14

[Per Ångström]

Changing Summary to mention "text zoom".

Comment 15

[Per Ångström]

Text zoom on the reported page works fine in Mozilla 1.4a-20030301/Linux. The
pages reported in duplicate bugs work fine also.

Comment 16

[Felix Miata]

WFM in 2003030313 OS/2.

Comment 17

[Robert O'Callahan (:roc) (email my personal email if necessary)]

I believe this was fixed by my checkin for bug 180502.

Comment 18

[Felix Miata]

*** Bug 197641 has been marked as a duplicate of this bug. ***

Comment 19

[Owen Marshall (Not reading bugmail)]

*** Bug 197857 has been marked as a duplicate of this bug. ***

Comment 20

[Adam Hauner]

*** Bug 197021 has been marked as a duplicate of this bug. ***

Comment 21

[R.K.Aa.]

*** Bug 198670 has been marked as a duplicate of this bug. ***

Comment 22

[Andrew Schultz]

*** Bug 198980 has been marked as a duplicate of this bug. ***

Comment 23

[Felix Miata]

*** Bug 199377 has been marked as a duplicate of this bug. ***

Comment 24

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

*** Bug 199754 has been marked as a duplicate of this bug. ***

Comment 25

[Andrew Schultz]

*** Bug 200363 has been marked as a duplicate of this bug. ***

Comment 26

[Andrew Schultz]

*** Bug 201556 has been marked as a duplicate of this bug. ***

Comment 27

[Felix Miata]

*** Bug 201583 has been marked as a duplicate of this bug. ***

Comment 28

[Matthias Versen [:Matti]]

*** Bug 201867 has been marked as a duplicate of this bug. ***

Comment 29

[Felix Miata]

*** Bug 215448 has been marked as a duplicate of this bug. ***