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<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>16889</bug_id>
          
          <creation_ts>2008-01-16 00:30:18 -0800</creation_ts>
          <short_desc>REGRESSION (r29425): Canvas-based graphing calculator fails to run</short_desc>
          <delta_ts>2008-02-04 22:29:51 -0800</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>JavaScriptCore</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>All</rep_platform>
          <op_sys>All</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>DUPLICATE</resolution>
          <dup_id>17164</dup_id>
          
          <bug_file_loc>http://www.calc5.com/</bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar, NeedsReduction, Regression</keywords>
          <priority>P1</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          <dependson>17164</dependson>
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Oliver Hunt">oliver</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>ddkilzer</cc>
    
    <cc>eric</cc>
    
    <cc>ggaren</cc>
    
    <cc>mjs</cc>
    
    <cc>oliver</cc>
    
    <cc>zwarich</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>67343</commentid>
    <comment_count>0</comment_count>
    <who name="Oliver Hunt">oliver</who>
    <bug_when>2008-01-16 00:30:18 -0800</bug_when>
    <thetext>The graphing calcualtor at calc5.com now completely fails to load or run, it appears to produce &quot;undefined value&quot; exception when it did not used to.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>67344</commentid>
    <comment_count>1</comment_count>
    <who name="Oliver Hunt">oliver</who>
    <bug_when>2008-01-16 00:37:13 -0800</bug_when>
    <thetext>Regression occurs between r29414 and r29438</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>67345</commentid>
    <comment_count>2</comment_count>
    <who name="Oliver Hunt">oliver</who>
    <bug_when>2008-01-16 00:40:28 -0800</bug_when>
    <thetext>Erk, this includes the activation patch, which could easily be the cause of the badness :(</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>67357</commentid>
    <comment_count>3</comment_count>
    <who name="Cameron Zwarich (cpst)">zwarich</who>
    <bug_when>2008-01-16 05:46:53 -0800</bug_when>
    <thetext>I can confirm that it doesn&apos;t work. It also doesn&apos;t work with my latest patch for bug 16868. Once that gets landed, I&apos;ll fix this. It doesn&apos;t look like it&apos;ll be too bad. The JS isn&apos;t obfuscated in any way like the Google stuff.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>67363</commentid>
    <comment_count>4</comment_count>
    <who name="Oliver Hunt">oliver</who>
    <bug_when>2008-01-16 09:25:45 -0800</bug_when>
    <thetext>yay google code! /me curses obfuscation tools</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>67422</commentid>
    <comment_count>5</comment_count>
    <who name="Cameron Zwarich (cpst)">zwarich</who>
    <bug_when>2008-01-16 17:17:35 -0800</bug_when>
    <thetext>I can confirm our suspicions that the bug is caused by r29425 (the ActivationImp tear-off patch). I patched a clean r29414 tree with it and it no longer worked.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>67642</commentid>
    <comment_count>6</comment_count>
    <who name="Cameron Zwarich (cpst)">zwarich</who>
    <bug_when>2008-01-18 16:26:34 -0800</bug_when>
    <thetext>This is not fixed by Maciej&apos;s fix for bug 16909.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>67644</commentid>
    <comment_count>7</comment_count>
    <who name="Oliver Hunt">oliver</who>
    <bug_when>2008-01-18 17:01:49 -0800</bug_when>
    <thetext>That makes me sad :(</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>67684</commentid>
    <comment_count>8</comment_count>
    <who name="David Kilzer (:ddkilzer)">ddkilzer</who>
    <bug_when>2008-01-19 03:05:26 -0800</bug_when>
    <thetext>&lt;rdar://problem/5696255&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>67994</commentid>
    <comment_count>9</comment_count>
    <who name="David Kilzer (:ddkilzer)">ddkilzer</who>
    <bug_when>2008-01-22 18:02:10 -0800</bug_when>
    <thetext>(In reply to comment #5)
&gt; I can confirm our suspicions that the bug is caused by r29425 (the
&gt; ActivationImp tear-off patch). I patched a clean r29414 tree with it and it no
&gt; longer worked.

The ActivationImp issue is now resolved, but the results for the calculator don&apos;t display properly (unlike on Firefox).  I think this bug should be kept open, and have its focus change to resolve the issue with displaying results.

</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>68002</commentid>
    <comment_count>10</comment_count>
    <who name="Oliver Hunt">oliver</who>
    <bug_when>2008-01-22 19:47:32 -0800</bug_when>
    <thetext>Dave, what makes you think that the activation imp issue is resolved? afaict the activation patch introduced the undefined variable exception, and that is still present in ToT -- the various activation related fixes were to stop crashes in GC, not fix correctness bugs -- none even touched correctness</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>69231</commentid>
    <comment_count>11</comment_count>
    <who name="Cameron Zwarich (cpst)">zwarich</who>
    <bug_when>2008-02-03 01:43:47 -0800</bug_when>
    <thetext>(In reply to comment #9)
&gt; (In reply to comment #5)
&gt; &gt; I can confirm our suspicions that the bug is caused by r29425 (the
&gt; &gt; ActivationImp tear-off patch). I patched a clean r29414 tree with it and it no
&gt; &gt; longer worked.
&gt; 
&gt; The ActivationImp issue is now resolved, but the results for the calculator
&gt; don&apos;t display properly (unlike on Firefox).  I think this bug should be kept
&gt; open, and have its focus change to resolve the issue with displaying results.

Like Oliver said, the GC marking issues were resolved, but this bug didn&apos;t change one bit. It is such a random error that it must be caused by some strange behaviour introduced by the ActivationImp tear-off. There are a few of these bugs now, but my previous attempts to reduce them failed. I will try again with the calculator now that I have more free time because I really want to see this resolved.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>69326</commentid>
    <comment_count>12</comment_count>
    <who name="Cameron Zwarich (cpst)">zwarich</who>
    <bug_when>2008-02-04 02:09:25 -0800</bug_when>
    <thetext>This bug is fixed by the patch for bug 17164.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>69432</commentid>
    <comment_count>13</comment_count>
    <who name="Oliver Hunt">oliver</who>
    <bug_when>2008-02-04 22:29:51 -0800</bug_when>
    <thetext>

*** This bug has been marked as a duplicate of 17164 ***</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>