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#8559 closed bug (invalid)

Opened March 18, 2011 01:04AM UTC

Closed March 31, 2011 02:30PM UTC

Event memory leaks ie6

Reported by: anonymous Owned by: anonymous
Priority: low Milestone: 1.next
Component: event Version: 1.5.1
Keywords: Cc:
Blocked by: Blocking:
Description

jQuery doesn't detachEvents onunload, causing memory leaks in IE.

A simple test case is to refresh the page in IE6 and watch the numbers go up - it's been raised before and been labelled invalid?


<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8">

<title>Events</title>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script>

<script>

if (typeof console == 'undefined') {

var timers = {};

window.console = {

time: function(name) {

timers[name] = new Date();

},

timeEnd: function(name) {

var now = new Date();

var dif = now - timers[name];

alert(dif);

}

}

}

window.onload = function() {

console.time('select / iterate / attach - 500');

$('p').click(emptyFn);

console.timeEnd('select / iterate / attach - 500');

}

</script>

</head>

<body>

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<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

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<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

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<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

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<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

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<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

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<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

<p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p><p>asdf</p>

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<table>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

<tr><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td><td>a</td></tr>

</table>

</body>

</html>

Attachments (0)
Change History (2)

Changed March 18, 2011 01:12AM UTC by rwaldron comment:1

component: unfiledevent
owner: → anonymous
status: newpending

Thanks for taking the time to contribute to the jQuery project! Please provide a reduced jsFiddle test case to help us assess your ticket!

Additionally, test against the jQuery 0 GIT version to ensure the issue still exists.

Changed March 31, 2011 02:30PM UTC by addyosmani comment:2

priority: undecidedlow
resolution: → invalid
status: pendingclosed

I reproduced your test case here: http://jsfiddle.net/h2Kw2/1/show and ran this a number of times under IE6, checking for any additional build of of memory usage. Unfortunately, even when refreshing consistently, I wasn't able to experience any memory leaks. This leads me to believe it may just have been an isolated incident. If you have proof of the leak which can be reproduced, we'll be happy to re-evaluate the potential leak you mentioned.