249564 - 100% CPU use and browser almost halts on JavaScript code

Status: RESOLVED EXPIRED

(Core :: DOM: Core & HTML, defect)

Description

[Chan Min Wai]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040510
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040510

When loading on some page with some "special" Javascript, it use 100% CPU and
mozilla almost halt.

Reproducible: Always
Steps to Reproduce:
1.load the attachment and wait it will eat up 100% CPU
2.
3.

Actual Results:  
Mozilla eat up 100% CPU and almost halt.

Expected Results:  
Normal CPU usage and not halt.

Comment 1

[Chan Min Wai]

Attachment: the javascript that caused System to use 100% CPU (It is Big5 encoded)

Please check on this is the code that caused 100% CPU utilization.

Comment 2

[Nicholas Allen]

I can't reproduce this with a recent FF build.  The page is just a large number
of marquees in a table.  There don't appear to be any user scripts.  CPU usage
hovers around 20% on my 2 GHz laptop.  That seems pretty good for around 70
marquees.

Comment 3

[Gervase Markham [:gerv]]

This is an automated message, with ID "auto-resolve01".

This bug has had no comments for a long time. Statistically, we have found that
bug reports that have not been confirmed by a second user after three months are
highly unlikely to be the source of a fix to the code.

While your input is very important to us, our resources are limited and so we
are asking for your help in focussing our efforts. If you can still reproduce
this problem in the latest version of the product (see below for how to obtain a
copy) or, for feature requests, if it's not present in the latest version and
you still believe we should implement it, please visit the URL of this bug
(given at the top of this mail) and add a comment to that effect, giving more
reproduction information if you have it.

If it is not a problem any longer, you need take no action. If this bug is not
changed in any way in the next two weeks, it will be automatically resolved.
Thank you for your help in this matter.

The latest beta releases can be obtained from:
Firefox:     http://www.mozilla.org/projects/firefox/
Thunderbird: http://www.mozilla.org/products/thunderbird/releases/1.5beta1.html
Seamonkey:   http://www.mozilla.org/projects/seamonkey/

Comment 4

[Gervase Markham [:gerv]]

This bug has been automatically resolved after a period of inactivity (see above
comment). If anyone thinks this is incorrect, they should feel free to reopen it.