941297 - Firefox 25 crashes when run WebWorker with infinityloop

Status: RESOLVED WORKSFORME

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

Description

[Michał]

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:25.0) Gecko/20100101 Firefox/25.0 (Beta/Release)
Build ID: 20131028112627

Steps to reproduce:

Run JavaScript WebWorker contains infinity-loop like:

while(true)
{
  postMessage("Message");
}



Actual results:

On Windows ( 7 Home Premium 64bit ) Firefox (25.0.1).
Firefox crashes and restarts.

On Ubuntu (13.04 64bit) Firefox (25.0).
Ubuntu keeps crashing. System do not respond.

Firefox crashes quicker when "Message" is long (about 500 bytes).


Expected results:

I think Firefox should recognize when WebWorker is not responding and it should display the information or warning. Just like is now in standard JavaScript.

Comment 1

[Andrew Sutherland [:asuth] (he/him)]

This was addressed by the introduction of ThrottledEventQueue although it's still quite possible for worker code to be a jerk!