401679 - Firefox takes 100% CPU when processing some page

Status: RESOLVED WORKSFORME

(Firefox :: General, defect)

Description

[Yaniv Kaul]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.8) Gecko/20071008 Firefox/2.0.0.8
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.8) Gecko/20071008 Firefox/2.0.0.8

The page is http://www.ynet.co.il/articles/0,7340,L-3465625,00.html

The stack from process explorer:
ntkrnlpa.exe+0x69e3f
firefox.exe!nsPrintSettings::GetPrintPageDelay+0x55e9e
firefox.exe!nsPrintSettings::GetPrintPageDelay+0x73e22
firefox.exe!DeviceContextImpl::AbortDocument+0x60a16
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x4df3f
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x4dd6c
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x4dc65
firefox.exe!DeviceContextImpl::AbortDocument+0x60a16
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x424b9
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x422a6
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x42109
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x41184
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x40a5e
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x3f969
firefox.exe!DeviceContextImpl::AbortDocument+0x5fc97
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x41cc3
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x40fa3
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x40a5e
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x3f969
firefox.exe!nsPrintSettings::GetPrintPageDelay+0x753fa
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x3e882
firefox.exe!nsPrintSettings::GetPrintPageDelay+0x753fa
firefox.exe!Java_netscape_javascript_JSObject_initClass+0x3d554


Reproducible: Always

Steps to Reproduce:
1. Go to the URL mentioned above

Actual Results:  
Firefox seems to be consuming 100% CPU

Expected Results:  
Don't consume so much resources.

Comment 1

[nivtwig]

Confirming with Firefox 3.5 RC1 but I think the main problem here is not the (almost) 100% CPU, which might be expected since it is a long page with ~2000 comments, but the lack of application responsiveness for some seconds when the page loads : 
Trying to switch between tabs quickly during the page load is not possible several times during the page load for a second or two.

Is it an interruptible reflow problem (bug 67752)?

Comment 2

[nivtwig]

Forgot to mention that this bug happens (both 100% CPU, and freezes during page load) even when I use Adblock Plus to block all the flash ads on this page .

Comment 3

[Worcester12345]

Doesn't seem so bad in the "Seamonkey" "nightly" "trunk" suite browser also running Adblock extension.

Version:
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.4pre) Gecko/20090903 SeaMonkey/2.0b2pre ID:20090903004335

Comment 4

[Worcester12345]

Just wanted to add that the above was to show it might be Firefox specific, as opposed to gecko related.

Comment 5

[Wayne Mery (:wsmwk)]

To have much hope of attention, need a reduced testcase from the URL per http://quality.mozilla.org/documents-home/bugs-docs/bug-triaging-guidelines/minimal-test-cases

Comment 6

[Tyler Downer [He/Him]]

This bug was originally reported on Firefox 2.x or older, which is no longer supported and will not be receiving any more updates. I strongly suggest that you update to Firefox 3.6.6 or later, update your plugins (flash, adobe, etc.), and retest in a new profile. If you still see the issue with the updated Firefox, please post here. Otherwise, please close as RESOLVED > WORKSFORME
http://www.mozilla.com
http://support.mozilla.com/kb/Managing+profiles
http://support.mozilla.com/kb/Safe+mode

Comment 7

[Yaniv Kaul]

Cannot reproduce on 4.0b1 - closing.