309890 - High CPU usage, and increasing memory consumption upon opening specific URL

Status: RESOLVED WORKSFORME

(Firefox :: General, defect)

Description

[Ignacio Carrera]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b4) Gecko/20050908 Firefox/1.4
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b4) Gecko/20050908 Firefox/1.4

Just opening the specified URL, the CPU usage keeps steady at [70..90]%, and
memory consumption keeps steadily incresing, at a high rate (in less than a
minute it went from ~20mb, to over 150mb). Closing that single tab drops both
parameters, but memory consumption is still a little high (perhaps some caching
or something).  When left a few minutes to see what happened, it eventually
crashed (and, before that, the UI became ever less responsive). Tested on:

- Firefox 1.4 (Deer Park Beta 1, 1.8b4, Gecko/20050908, wXP-SP2): shows bug
- Firefox 1.0.7 (1.7.12, Gecko/20050919, wXP-SP2): works fine

Reproducible: Always

Steps to Reproduce:
1. open Task Manager or any resource monitor (optional, you can feel the browser
less responsive)
2. open http://www.onlamp.com/pub/wlg/7887 while watching the monitor 
3. wait a few seconds

Actual Results:  
CPU usage: 70% < x < 90%
Firefox's Memory Usage: grew at a high rate (more than 60mb a minute)
Browser responsiveness: crawling

Expected Results:  
Keep it resource usage as low as possible.

- Default theme
- Talkback ID TB9686333X
- Pentium 3 1000Mhz (FSB133), 512mb RAM, 80gb ATA133, running Windows XP Service
Pack 2 (I might try it later on Linux... but I didn't install Deer Park there)
- Build config: just downloaded binary as posted to mozilla.org (i586-pc-msvc,
--enable-application=browser --enable-update-channel=beta --enable-optimize
--disable-debug --disable-tests --enable-static --disable-shared
--enable-official-branding --enable-svg --enable-canvas --enable-update-packaging)

Comment 1

[Ria Klaassen (not reading all bugmail)]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20050923
Firefox/1.6a1 ID:2005092321

WFM in trunk and branch; CPU usage 3-18% due to the flash advertisement.
Without flash 3-5%. 

Comment 2

[Peter van der Woude [:Peter6]]

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b5) Gecko/20050924
Firefox/1.4 ID:2005092401

WFM

Comment 3

[Ignacio Carrera]

(In reply to comment #2)
> Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b5) Gecko/20050924
> Firefox/1.4 ID:2005092401
> 
> WFM

Sorry, do you know where to find a binary package for 1.8b5?

Comment 4

[Mats Palmgren (inactive)]

Latest branch 1.8 builds:
http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-mozilla1.8/

Latest trunk builds:
http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/

Comment 5

[Ignacio Carrera]

(In reply to comment #4)
> Latest branch 1.8 builds:
> http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-mozilla1.8/
> 
> Latest trunk builds:
> http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/

Thanks, tried 2005-09-25. It's certainly better, though still showing the same
behaviour (its CPU usage is a little lower, say ~50-60% and memory consumption
doesn't grow so abruptly, but still higher than other
full-of-flash-ads-and-stuff pages).

I don't know what more could I try. On the other hand, seeing improvement in
this regard, I'd think this is something that's being addresed and close this bug.

NachoKB

Comment 6

[Lefteris]

Same think happens here. Memory keeps increasing visiting the referenced site.

It also happens with:
http://www.duluthsuperior.com/mld/duluthsuperior/business/technology/12783050.htm

Tested with Firefox 1.5 B1 + WinXP PRO SP2. It also happens with Win2000 SP4

Comment 7

[Ignacio Carrera]

(In reply to comment #6)
> Same think happens here. Memory keeps increasing visiting the referenced site.
> 
> It also happens with:
> http://www.duluthsuperior.com/mld/duluthsuperior/business/technology/12783050.htm
> 
> Tested with Firefox 1.5 B1 + WinXP PRO SP2. It also happens with Win2000 SP4

Happened to me also. But somehow slower. (1.5b1)

Comment 8

[Lefteris]

This bug does not occur with Javascript disabled.
With Javascript enabled firefox memory keeps getting larger.

My configuration same as last time, only change is that i use nightly build of
03/09/2005 (1.8).

Comment 9

[Lefteris]

This bug is fixed in the nightly build of 18-Oct-2005 (latest-mozilla 1.8).

Both of the URLs mentioned above are working fine without memory leaks.

Nice work guys and thank you. There will be a lot less firefox crashes now(at
least for me).

A propose to resolve the bug to fixed.

Comment 10

[Lefteris]

Scratch the previous post. 

This bug is triggered by enabling AdBlock and going to the above URLs. (i should
have tested with disabled extensions before).

Comment 11

[Wayne Mery (:wsmwk)]

The original URL http://www.onlamp.com/pub/wlg/7887 WFM.
The page has apparently changed because it no longer has flash content.
-> WFM
Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a4pre) Gecko/20070427 Minefield/3.0a4pre

comment 6 URL no longer exists and goes to a different page. If that page is similar then the issue there could be javascript (slide show), flash, something else or a combination. There are plenty of existing bugs to choose from.