453448 - TM: Maps at www.mapy.cz do not work with JIT enabled

Status: RESOLVED DUPLICATE of bug 457171

(Core :: JavaScript Engine, defect, P2)

Description

[Pavel Penaz]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1b1pre) Gecko/20080903034741 Minefield/3.1b1pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1b1pre) Gecko/20080903034741 Minefield/3.1b1pre

The javascript intensive maps at www.mapy.cz do not work with JIT enabled. With JIT the maps are displayed no problem.

Reproducible: Always

Steps to Reproduce:
1.in about:config set javascript.options.jit.content to true 
2.load www.mapy.cz
Actual Results:  
Only header of the page is displayed, the map area is not rendered at all.

Expected Results:  
The map area gets rendered.

Comment 1

[Pavel Penaz]

Attachment: Venkman Log without JIT

Comment 2

[Pavel Penaz]

Attachment: Venkman Log with JIT

Comment 3

[Pavel Penaz]

I am not sure whether this can help, but with JIT enabled the venkman shows the following lines to the end of the log:

Exception ``Error: can't find TOP LEVEL Class'' thrown from function anonymous() in <http://api.mapy.cz/js/jslib/jslib_3.utf-8.js?38> line 1.
[e] message = [string] "can't find TOP LEVEL Class"
Exception ``Error: can't find TOP LEVEL Class'' thrown from function anonymous(name=string:"marks", owner=Object:{11}) in <http://api.mapy.cz/js/api_3.utf-8.js?38> line 1.
[e] message = [string] "can't find TOP LEVEL Class"
Exception ``Error: can't find TOP LEVEL Class'' thrown from function anonymous() in <http://api.mapy.cz/js/jslib/jslib_3.utf-8.js?38> line 1.
[e] message = [string] "can't find TOP LEVEL Class"
Exception ``Error: can't find TOP LEVEL Class'' thrown from function anonymous(component=Object:{2}) in <http://api.mapy.cz/js/jslib/jslib_3.utf-8.js?38> line 1.
[e] message = [string] "can't find TOP LEVEL Class"
Exception ``Error: can't find TOP LEVEL Class'' thrown from function anonymous() in <http://api.mapy.cz/js/jslib/jslib_3.utf-8.js?38> line 1.
[e] message = [string] "can't find TOP LEVEL Class"
Exception ``Error: can't find TOP LEVEL Class'' thrown from function anonymous(deaf=boolean:true, mapElement=HTMLDivElement:{0}) in <http://api.mapy.cz/js/api_3.utf-8.js?38> line 1.
[e] message = [string] "can't find TOP LEVEL Class"
Exception ``Error: can't find TOP LEVEL Class'' thrown from function anonymous() in <http://api.mapy.cz/js/jslib/jslib_3.utf-8.js?38> line 1.
[e] message = [string] "can't find TOP LEVEL Class"
Exception ``Error: can't find TOP LEVEL Class'' thrown from function anonymous(mapElement=HTMLDivElement:{0}) in <http://www.mapy.cz/js/mapy.js?39> line 1.
[e] message = [string] "can't find TOP LEVEL Class"
Exception ``Error: can't find TOP LEVEL Class'' thrown from function anonymous() in <http://api.mapy.cz/js/jslib/jslib_3.utf-8.js?38> line 1.
[e] message = [string] "can't find TOP LEVEL Class"
Exception ``Error: can't find TOP LEVEL Class'' thrown from function (null)() in <http://www.mapy.cz/?query=> line 477.
[e] message = [string] "can't find TOP LEVEL Class"

Comment 4

[Andreas Gal :gal]

Confirmed to not work on MacOSX nightly as of today.

Comment 5

[Pavel Penaz]

http://www.mapy.cz is part of the number one web portal in Czech Republic http://www.seznam.cz. Thus marking nominated for blocking 1.9.1.

Comment 6

[Damon Sicore (:damons)]

blocking1.9.1+, requires beta.  Assigning to danderson

Comment 7

[Graydon Hoare :graydon]

Reproducible on m-c tip, but working on tracemonkey tip. Bisected back to point where it started working: revision af4d2ab298e0, the revision that fixed bug 457171. This is covered by a mochitest. The fix will enter m-c with next tracemonkey branch merge. Closing as duplicate.

Comment 8

[Andreas Gal :gal]

Awesome. Thanks.