[Bug 1180731] [NEW] QtWebKit JS crash on 32-bit systems

[Robert Knight]

Public bug reported:

QtWebKit 2.3.0 as shipped in Ubuntu 13.04 is affected by the bug
described at https://bugs.webkit.org/show_bug.cgi?id=108991 which can
causes JS crashes on certain pages on 32bit systems.  I was not able to
reproduce the problem using gap.com as described on that bug report but
I can reproduce using Mendeley Desktop.

Applying the patch at
https://bug-108991-attachments.webkit.org/attachment.cgi?id=186726 to
the source package for libqtwebkit4 fixes the problem.

Steps to reproduce:

 1. Install Mendeley Desktop 1.8.4 from http://download.mendeley.com/apt/pool/main/m/mendeleydesktop/mendeleydesktop_1.8.4-stable_i386.deb on Ubuntu 13.04 (32bit)
 2. Start the app with 'mendeleydesktop --setting General_FirstRun:false' to skip the login screen (if you have a Mendeley account, you can use that instead)
 3. Go to View -> Library As Citations (this invokes a JS program to render citations)

Stacktrace (using a build of QWK with debug symbols included for
JavaScriptCode): https://gist.github.com/anonymous/5585274

** Affects: qtwebkit-source (Ubuntu)
     Importance: Undecided
         Status: New

** Patch added: "Patch taken from the upstream bugs.webkit.org report"
   https://bugs.launchpad.net/bugs/1180731/+attachment/3678181/+files/108991-jsval-32bit-fix.patch

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https://bugs.launchpad.net/bugs/1180731

Title:
  QtWebKit JS crash on 32-bit systems

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