614611 - firefox doesn't stop this script from using all the memory and crashing a computer

Status: RESOLVED WORKSFORME

(Core :: JavaScript Engine, defect)

Description

[chris.b.blay]

User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.12) Gecko/20101027 Ubuntu/10.10 (maverick) Firefox/3.6.12
Build Identifier: 

i have found a simple case in which firefox should probably stop a script due to the page being unresponsive but it doesn't

instead, tons of memory is allocated and if not stopped quickly enough the computer will need to be restarted

Reproducible: Always

Steps to Reproduce:
i've included an html file with example code. simply comment out the last div element to see the problem. it messes up other browsers too but i'm just reporting here for now

Comment 1

[chris.b.blay]

Attachment: this will crash firefox if slightly modified

Comment 2

[Boris Zbarsky [:bzbarsky]]

Hmm.  So jquery is handing out an infinite stream of objects here... but the slow script dialog should still come up, and doesn't seem to....

Comment 3

[chris.b.blay]

Ya I always thought the target variable would actually change to the next element in the DOM but I guess jQuery just tacks .next() onto its selector and goes with it

Comment 4

[Wayne Mery (:wsmwk)]

using current nightly on windows I don't see crash.