1924573 - Visiting of the demo located on https://codepen.io/mayankleoboy1/full/wvbeZaG makes Firefox and macOS unresponsive

Status: UNCONFIRMED

(Core :: Graphics: WebRender, defect, P3)

Description

[Michal K]

Attachment: about-support.txt

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:133.0) Gecko/20100101 Firefox/133.0

Steps to reproduce:

I visited demo located on this address https://codepen.io/mayankleoboy1/full/wvbeZaG and once the page is loaded then Firefox and even macOS become unresponsive. Rendering of the demo does not work. I discovered this demo in the Bug 1901190 which was resolved recently but it does not work on macOS.

Actual results:

Firefox and macOS become unresponsive. Rendering does not work.

Expected results:

The demo should work normally as in Safari.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Cocoa' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Stephen A Pohl [:spohl]]

I'm unable to reproduce this on Sequoia 15.1 with a local build from current m-c. I understand that you say that Firefox and even macOS become unresponsive. Are you still able to capture a performance profile, or is it not responsive enough to do so? https://profiler.firefox.com/

Comment 3

[Michal K]

Hi, if I use standard mode of Firefox then I'm not able to capture anything. Either Firefox crashes or freezes completely. I was able to see that Firefox's main process oscilates between 70 - 100% CPU usage and "kernel_task" process exceeds 100% CPU usage too. Here are some crashes:

https://crash-stats.mozilla.org/report/index/d1e049a7-5806-4dd7-8cdc-026120241015
https://crash-stats.mozilla.org/report/index/84af1814-1b16-4e56-9957-93bdd0241015
https://crash-stats.mozilla.org/report/index/5799348e-a65b-4454-81f9-a92b50241015

Crashes happened mostly in case of standard mode of Firefox and try to open the link in private window.

However if I used Troubleshoot Mode I was able to capture this:

https://share.firefox.dev/4eK5vNw

Main process was around 100% however Firefox was able to at least close the tab with the opened link after some time, so that I was able to capture something. Interestingly "kernel_task" process was busy normally without excessive usage, so that macOS was responsive normally too.

Comment 4

[Markus Stange [:mstange]]

I've filed bug 1924865 about the crash. Let's keep this bug about the hang and system lock-up.

Comment 5

[Jim Mathies [:jimm]]

Web content freezing Firefox, that sounds kind of bad. Moving to team triage to find an owner.

Comment 6

[Brad Werth [:bradwerth]]

I will try to reproduce on similar hardware.

Comment 7

[Bob Hood [:bhood]]

Note: Heavy artifacting in both Edge and Chrome.