987799 - Huge memory leak after terminating a web worker

Status: UNCONFIRMED

(Core :: DOM: Workers, defect, P5)

Description

[omriyariv]

Attachment: test.zip

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.154 Safari/537.36

Steps to reproduce:

1. Load a very big file (15MB should do) into a web worker. The script can be just a function definition. Example here: https://www.dropbox.com/s/09b4d60d4c0i5dr/test.js
2. Terminate the worker.


Actual results:

The process memory increases in about 10MB. Doing this repeatedly will eventually crash the browser.


Expected results:

The memory that the worker took should be freed after terminating the worker.

Comment 1

[Bogdan Maris, Desktop QA]

Can you reproduce this on the latest Nightly using a clean profile?
Clean profile - https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles
latest Nightly - http://nightly.mozilla.org/

Comment 2

[omriyariv]

Not reproducible with a clean profile. I now suspect this is a Firebug related issue. Thanks for the directions!