583475 - [OOPP] Flash Page Hangs and High CPU Usage with Flash Page (after landing of retained layers)

Status: RESOLVED WORKSFORME

(Core Graveyard :: Plug-ins, defect)

Description

[Bill Lancashire]

User-Agent:       Mozilla/5.0 (X11; Linux i686; rv:2.0b3pre) Gecko/20100731 Minefield/4.0b3pre
Build Identifier: Mozilla/5.0 (X11; Linux i686; rv:2.0b3pre) Gecko/20100731 Minefield/4.0b3pre

When I navigate to certain URLs with flash content, the page (and browser controls) hangs for several seconds.

Reproducible: Always

Steps to Reproduce:
1.Navigate to http://www.newquayweather.com/
2.Set pref. 'dom.ipc.plugins.enabled' to 'TRUE'.
2.Select 'Live Weather' from the LH menu
3.Try to click on any of the Firefox control buttons
Actual Results:  
Firefox 'freezes' for several seconds before releasing control on buttons and other controls.

Expected Results:  
Flas page should appear and should be possible to navigate away form the page or operate other browser controls immediately.

Seen with fresh profile.

Default Theme.

no Add-ons other than Flash plugin version 10.1r53

Effect is not seen if I disable OOPP (set pref.  'dom.ipc.plugins.enabled' to 'FALSE').

Comment 1

[Bill Lancashire]

Note:

This effect is NOT seen with Firefox 4b1

Comment 2

[Bill Lancashire]

Further Hardware/Software details:

CPU: AMD Athlon XP-M, 1870MHz
Graphics Card: Nvidia GeForce 3 Ti200
Slackware 12.1
Linux kernel: 2.6.24.6
Nvidia Legacy Driver: 96.43.05
XOrg version: 1.4.2
Cairo Version: 1.8.8

Comment 3

[Bill Lancashire]

Also noted very high CPU usage when navigating to the test link in the above 'Description'.  This is even when OOPP is disabled for all plugins.

I guess this is why the effect is more noticeable on low-end PC hardware.

Comment 4

[Johnny Stenback (:jst)]

Over to roc. Per the above comments this is a retained layers regression.

Comment 5

[Karel Jára]

This is not only on Linux. Mine is:
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b6pre) Gecko/20100901 Firefox/4.0b6pre

And for example this page www.zive.cz is completely unbrowsable during and a while after loading.

Comment 7

[Jim Mathies [:jimm]]

(In reply to comment #6)
> 
> *** This bug has been marked as a duplicate of bug 561288 ***

bug 561288 is in 3.6.4, this has something to do with retained layers.

Comment 9

[Jim Mathies [:jimm]]

Ugh! This is linux! Lets re-arrange things again.

Comment 11

[Jim Mathies [:jimm]]

re-requesting blocking betaN.

Comment 12

[Karl Tomlinson (:karlt)]

This is fixed for me by bug 556487 and bug 598112.
It returns if I set mozilla.plugins.use_layers to false.

Bill, are you seeing expected behavior?

Comment 13

[Bill Lancashire]

(In reply to comment #12)

> 
> Bill, are you seeing expected behavior?

Yes, this is now fixed for me (build tested: BuildID=20100930031320) and behaviour is as expected on the 'test URL'.

Many thanks.

Comment 14

[Karl Tomlinson (:karlt)]

Thank you, Bill.