405164 - about:config infinite loops in jsviewOverlay.js

Status: RESOLVED INCOMPLETE

Description

[Fabien Tassin]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9b2pre) Gecko/2007112318 Minefield/3.0b2pre
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9b2pre) Gecko/2007112318 Minefield/3.0b2pre

While using about:config (no particular action, just browsing the list or changing tab), CPU spikes freezing the browser for about 20sec, before the "Unresponsive Script" popup kicks in. If I kill and debug the script, venkman shows me:

#0: function anonymous() in <chrome://jsview/content/jsviewOverlay.js> line 576

574: cssarray.sort();
575: for (var i=0; i<cssarray.length-1; ++i) {
576: while (cssarray[i]==cssarray[i+1]) {            <======
577: cssarray.splice(i,1);
578: }

csarray seems to contain only cssarray[0] = "chrome://global/skin/config.css"

Reproducible: Always

Steps to Reproduce:
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Comment 1

[Fabien Tassin]

I'm still having this. Recent trunk also shows in the popup:

Script: chrome://jsview/content/jsviewOverlay.js:576

This is with:

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9b3pre) Gecko/2008010401 Firefox/3.0b3pre

100% reproducible when changing tab from about:config.

Comment 2

[Tyler Downer [:Tyler]]

This bug was reported using Firefox 3.0 or older, which is no longer supported. The bug has also not been changed in over 500 days and is still in UNCO.
Reporter, please retest this bug in Firefox 3.6.10 or later using a fresh profile, http://support.mozilla.com/en-US/kb/managing+profiles. If you still see this problem, please update the bug. If you no longer see the bug, please set the resolution to RESOLVED, WORKSFORME.

This is a mass search of unconfirmed bugs that have no activity on them, so if you feel a bug was marked in error, just remove the CLOSEME comment in the whiteboard within the next month.

Comment 3

[Tyler Downer [:Tyler]]

No reply, INCOMPLETE. Please retest with Firefox 3.6.12 or later and a new profile (http://support.mozilla.com/kb/Managing+profiles). If you continue to see this issue with the newest firefox and a new profile, then please comment on this bug.