8949 2006-05-16 16:50:11 -0700 [S60] Javascript (onClick event) infinite loop hangs browser indefinitely 2007-01-12 14:17:21 -0800 1 1 1 Unclassified WebKit JavaScriptCore 312.x S60 Hardware S60 3rd edition CLOSED DUPLICATE 7080 P2 Critical --- 0 krishnamurty.podipireddy webkit-unassigned bugzilla darin S60webkit oldest_to_newest 42666 0 krishnamurty.podipireddy 2006-05-16 16:50:11 -0700 +++ This bug was initially created as a clone of Bug #7080 +++ At current, infinite javascript loops are really infinite, we need a way to detect and stop them. This currently occurs in: - bug 3552 - bug 6693 - bug 6958 Any sort of infinite loop in a javascript method will take over the entire browser, and requires a "Force Quit..." on OS X to get Safari to stop hogging all the CPU. Try the following test case: <html> <head> <title>Abort Feature 1</title> <script type="text/javascript"> var run = true; var a = 1; function startLoop(){ while(run){ a++; document.forms[0].elements[0].value=a; } } </script> </head> <body> <h3>Abort Feature 1</h3> <p> Activate the "Start Loop" link below to start an infinite loop by script execution.<br/> Then stop script execution using script cancellation UI feature. </p> <p> <a href="#" onClick="startLoop()">Start Loop</a><br/> <form><input/></form> </p> </body> </html> 42667 1 krishnamurty.podipireddy 2006-05-16 17:03:07 -0700 How to reproduce: Load the test case provided in the description. Click the link "Start Loop" Expected result: The script execution should be stopped by cancellation. Actual result: The script execution cannot be stopped. After clicking Start Loop, the browser hangs and can't do another operaton on the browser. *** This bug has been marked as a duplicate of 7080 *** 42669 2 8358 krishnamurty.podipireddy 2006-05-16 17:21:31 -0700 Created attachment 8358 onClick() Javascript infinite loop The source code of this test file is already available in the description. 44008 3 krishnamurty.podipireddy 2006-05-30 10:33:11 -0700 TSW Error ID: EQWU-6KZ9QR 35324 4 krishnamurty.podipireddy 2007-01-12 14:13:49 -0800 Closed. 8358 2006-05-16 17:21:31 -0700 2006-05-16 17:21:31 -0700 onClick() Javascript infinite loop abort_feature.html text/html 660 krishnamurty.podipireddy PGh0bWw+DQoNCjxoZWFkPiANCgk8dGl0bGU+QWJvcnQgRmVhdHVyZSAxPC90aXRsZT4NCg0KCTxz Y3JpcHQgdHlwZT0idGV4dC9qYXZhc2NyaXB0Ij4NCgkgICAgdmFyIHJ1biA9IHRydWU7DQoJICAg IHZhciBhID0gMTsNCiAgICAgICAgICAgIGZ1bmN0aW9uIHN0YXJ0TG9vcCgpew0KICAgICAgICAg ICAgICAgd2hpbGUocnVuKXsNCgkJCSBhKys7DQoJCQkgZG9jdW1lbnQuZm9ybXNbMF0uZWxlbWVu dHNbMF0udmFsdWU9YTsNCgkJCX0JDQogICAgICAgICAgICAgICAgIA0KICAgICAgICAgICAgICAg fQkNCg0KDQoJPC9zY3JpcHQ+DQoNCjwvaGVhZD4NCg0KDQo8Ym9keT4NCjxoMz5BYm9ydCBGZWF0 dXJlIDE8L2gzPg0KDQoJDQoJPHA+DQoJQWN0aXZhdGUgdGhlICJTdGFydCBMb29wIiBsaW5rIGJl bG93IHRvIHN0YXJ0IGFuIGluZmluaXRlIGxvb3AgYnkgc2NyaXB0DQoJZXhlY3V0aW9uLjxici8+ ICBUaGVuIHN0b3Agc2NyaXB0IGV4ZWN1dGlvbiB1c2luZyBzY3JpcHQgY2FuY2VsbGF0aW9uIFVJ IGZlYXR1cmUuDQoJPC9wPg0KCQ0KDQoJPHA+CQ0KCQk8YSBocmVmPSIjIiBvbkNsaWNrPSJzdGFy dExvb3AoKSI+U3RhcnQgTG9vcDwvYT48YnIvPg0KCQk8Zm9ybT48aW5wdXQvPjwvZm9ybT4NCgk8 L3A+DQoNCg0KPC9ib2R5Pg0KDQoNCjwvaHRtbD4NCg0K