636706 - Chaotic particles demo makes the browser unresponsive

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect)

Description

[Scoobidiver (away)]

Attachment: Windbg logfile

The Chaotic particles demo makes the browser unresponsive.

It is hard to reproduce using Windbg.

Comment 1

[Scoobidiver (away)]

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b13pre) Gecko/20110225 Firefox/4.0b13pre
or
Firefox 3.6.13

Comment 2

[Boris Zbarsky [:bzbarsky]]

Worksforme on Mac.  Is this windows only?  If so, does disabling hardware accel help?

Comment 3

[Mike Shaver (:shaver emeritus)]

Fine for me on FF4 with HW accel disabled.  Can't try with accel on until I get home (this optimus machine is all blacklisted and stuff)

Comment 4

[Boris Zbarsky [:bzbarsky]]

And on Mac, 90+% of the time is under Canvas fillRect.  But that's covered by bug 601176 and the like.

The unresponsive thing is bad, though.  I wonder whether we can address that...

Comment 5

[Scoobidiver (away)]

> Fine for me on FF4 with HW accel disabled.
Me too. So it is caused by HW acceleration.

Comment 6

[Boris Zbarsky [:bzbarsky]]

Seems likely to be the same underlying issue as bug 636752.

Comment 7

[Andrei Purice]

Following the reporter's steps I am able to confirm that the issues doesn't happen anymore on Windows 10 on any of the current versions of Firefox Nightly 87.0a1 (2021-02-23), beta 86.0 and release 85.0.2. No crashes occur under the given test case - site used for repro : https://29a.ch/sandbox/2010/particle/.

Closing this issue as Resolved > Worksforme.
Feel free to re-open or file a new bug if this issue reoccurs again.