636406 - Loading Gmail hangs indefinite in AIX for Firefox-3.5.x

Status: RESOLVED WONTFIX

(Core :: JavaScript Engine, defect, P3)

Description

[Himanshu Sehgal]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13 ;ShopperReports
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.2.13) Gecko/20101203 Firefox/3.5.8 ;ShopperReports

when try opening gmail account in AIX for Firefox-3.5.x, Gmail hangs indefinitly.

OS version : AIX 5.3 and above
Firefox version used : Firefox-3.5.x
Used 64bit rpms for build

I have the debug build for Firefox-3.5.8 (64bit) and tried running it to get a better idea of the problem. I am also posting the debug error messages below :

WARNING: recurring into frame construction: 'mPresContext->mLayoutPhaseCount[eLayoutPhase_FrameC] == 0', file /home/firefo
x/ffox358_debug/mozilla/layout/base/nsPresContext.h, line 1026
WARNING: recurring into frame construction: 'mPresContext->mLayoutPhaseCount[eLayoutPhase_FrameC] == 0', file /home/firefo
x/ffox358_debug/mozilla/layout/base/nsPresContext.h, line 1026
WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x8007000E: file /home/firefox/ffox358_debug/mozilla/content/base/sr
c/nsXMLHttpRequest.cpp, line 2616
JavaScript error: https://mail.google.com/mail/?ui=2&view=js&name=main,tlist&ver=nMV9SDQdWfY.en.&am=!062G0DnwSUP7BeVh4f8xI
sM1NgFWTRh3b2_28yWM3o9blMdWuid8yDJB5Q&fri, line 1120: this.Za is undefined
WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x8007000E: file /home/firefox/ffox358_debug/mozilla/content/base/sr
c/nsXMLHttpRequest.cpp, line 2616
--DOMWINDOW == 29 (111adfd08) [serial = 28] [outer = 111ab4a90] [url = https://www.google.com/accounts/ServiceLoginAuth]
WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x8007000E: file /home/firefox/ffox358_debug/mozilla/content/base/sr
c/nsXMLHttpRequest.cpp, line 2616
WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x8007000E: file /home/firefox/ffox358_debug/mozilla/content/base/sr
c/nsXMLHttpRequest.cpp, line 2616
WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x8007000E: file /home/firefox/ffox358_debug/mozilla/content/base/sr
c/nsXMLHttpRequest.cpp, line 2616
--WEBSHELL 110bbf170 == 14
WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x8007000E: file /home/firefox/ffox358_debug/mozilla/content/base/sr
c/nsXMLHttpRequest.cpp, line 2616
--DOMWINDOW == 28 (1111aa888) [serial = 7] [outer = 110bbfd30] [url = about:blank]
--DOMWINDOW == 27 (110bbfd88) [serial = 5] [outer = 0] [url = about:blank]
--DOMWINDOW == 26 (111777208) [serial = 14] [outer = 110da6810] [url = http://en-us.www.mozilla.com/en-US/firefox/3.5.8/wh
atsnew/]
--WEBSHELL 110da5ad0 == 13
--DOMWINDOW == 25 (110845b08) [serial = 2] [outer = 0] [url = chrome://browser/content/browser.xul]
--DOMWINDOW == 24 (110852688) [serial = 3] [outer = 0] [url = about:blank]
--DOMWINDOW == 23 (110da6868) [serial = 6] [outer = 0] [url = http://en-us.www.mozilla.com/en-US/firefox/3.5.8/whatsnew/]
--WEBSHELL 11083a3f0 == 12
JavaScript error: https://mail.google.com/mail/?ui=2&view=js&name=main,tlist&ver=nMV9SDQdWfY.en.&am=!062G0DnwSUP7BeVh4f8xI
sM1NgFWTRh3b2_28yWM3o9blMdWuid8yDJB5Q&fri, line 1120: this.Za is undefined


We are able to open the Gmail in the basic HTML view but it does not work in the standard view.




Reproducible: Always

Steps to Reproduce:
1. Build Firefox-3.5.x on AIX (v5.3 OR above) using 64bit rpms.
2. launch gmail.com from the Firefox window
3. login to your gmail account. Firefox hangs while loading ( sometimes though you are able to login but individual mail does not open )
Actual Results:  
User should be able to login gmail and run through his/her mails in the mailbox.

Expected Results:  
The loading page for Firefox hangs indefinitly in AIX and sometimes load but does not allow to open individual mails.

Comment 1

[Uli Link (:ul-mcamafia)]

I can confirm this bug, I also had one user reporting exactly the same problem  for my 32bit builds. It is also 100% reproducable with my SeaMonkey 2.0.x builds and also Firefox 3.6.13.

Comment 2

[Uli Link (:ul-mcamafia)]

IBM's Firefox 3.5.8 for 64bit AIX does NOT contain the fix for bug# 501881.
Backing out the patch of bug# 501881 didn't help against this javascript error/deadlock. It was my first guess, as the user reported a earlier SeaMonkey version (without the mentioned patch) as working.
I cannot reproduce it within my environment. No gmail.com accounts in Germany.

Comment 3

[Himanshu Sehgal]

Adding some additional comment while debugging the issue :

NS_ENSURE_SUCCESS fails here :

WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x8007000E: file /home/firefox/ffox358_debug/mozilla/content/base/src/nsXMLHttpRequest.cpp, line 2616

Source at line before NS_ENSURE_SUCCESS says

rv = converter->ConvertToInputStream(serial,
                                           getter_AddRefs(postDataStream));

where, dbx to serial and postDataStream give the following values :

(dbx) p postDataStream
{
    nsCOMPtr_base::mRawPtr = (nil)

}

(dbx) p serial
{
    nsAString_internal::mData = 0x00000001103098d0
    nsAString_internal::mLength = 0
    nsAString_internal::mFlags = 9


}

which seems to be nil for  postDataStream and " Length = 0 " for serial.


Not pretty sure what causes these values to be nil and thus causes NS_ENSURE_SUCCESS to fail. Not even sure this could be the exact issue. 

Any help ?

Comment 4

[Himanshu Sehgal]

Backing out the changes for defect bug# 501881 does not work. It causes firefox to fail silently.

Comment 5

[Himanshu Sehgal]

Firefox is looping around while sending request to the gmail web server for the gmail page.

The failing method is nsXMLHttpRequest::Send, while in the file "/mozilla/content/base/src/nsXMLHttpRequest.cpp".

The method in the loop which fails is :
rv = converter->ConvertToInputStream(serial,
                                           getter_AddRefs(postDataStream));

and when we move inside the method " ConvertToInputStream ", we find method     " ConvertToByteArray "  to return the wrong rv value.

The method definition is

NS_IMETHODIMP
nsScriptableUnicodeConverter::ConvertToByteArray(const nsAString& aString,
                                                 PRUint32* aLen,
                                                 PRUint8** _aData)

{
  char* data;
  PRInt32 len;
  nsresult rv = ConvertFromUnicodeWithLength(aString, &len, &data);
  if (NS_FAILED(rv))
    return rv;
  nsXPIDLCString str;
  str.Adopt(data, len); // NOTE: This uses the XPIDLCString as a byte array

  rv = FinishWithLength(&data, &len);
  if (NS_FAILED(rv))
    return rv;

  str.Append(data, len);
  nsMemory::Free(data);
  // NOTE: this being a byte array, it needs no null termination
  *_aData = reinterpret_cast<PRUint8*>
                            (nsMemory::Clone(str.get(), str.Length()));
  if (!*_aData)
    return NS_ERROR_OUT_OF_MEMORY;
  *aLen = str.Length();
  return NS_OK;
}


The error code we get is " NS_ERROR_OUT_OF_MEMORY " when we return from this method.

The failing method here is 

*_aData = reinterpret_cast<PRUint8*>
                            (nsMemory::Clone(str.get(), str.Length()));


Not sure what may be causing the failure.

Comment 6

[Uli Link (:ul-mcamafia)]

Branches confirmed affected: moz-191, moz-192
moz-20 branch is most probably affected,too. Not firefox 4.0.x on AIX so far untill today.

Comment 7

[Chris Peterson [:cpeterson]]

Mozilla no longer supports AIX, but patches are accepted. :)