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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>91571</bug_id>
          
          <creation_ts>2012-07-17 19:26:53 -0700</creation_ts>
          <short_desc>REGRESSION(r122621): Broke Chromium&apos;s about:gpu page</short_desc>
          <delta_ts>2012-07-19 15:21:45 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>DOM</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>All</rep_platform>
          <op_sys>All</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P1</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          <dependson>90326</dependson>
    
    <dependson>91530</dependson>
    
    <dependson>91587</dependson>
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Kenneth Russell">kbr</reporter>
          <assigned_to name="Ryosuke Niwa">rniwa</assigned_to>
          <cc>andersca</cc>
    
    <cc>jbates</cc>
    
    <cc>jkummerow</cc>
    
    <cc>mstarzinger</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>671888</commentid>
    <comment_count>0</comment_count>
    <who name="Kenneth Russell">kbr</who>
    <bug_when>2012-07-17 19:26:53 -0700</bug_when>
    <thetext>http://trac.webkit.org/changeset/122621 broke Chrome&apos;s about:gpu page. The page comes up blank, rather than containing some initial content which is then expanded as the GPU process gathers and provides information.

Unfortunately, there was a simultaneous bad V8 roll which causes assertion failures when visiting this page in a top of tree debug build. However, one can either manually roll back V8 to r11956 or (probably) run with a release build to see the effect.

I&apos;m marking this P1 because it&apos;s broken some of QA&apos;s tests, and may also indicate incorrect invalidation which could be affecting other web pages.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>671897</commentid>
    <comment_count>1</comment_count>
    <who name="Ryosuke Niwa">rniwa</who>
    <bug_when>2012-07-17 19:40:18 -0700</bug_when>
    <thetext>Do you have a reduction for this?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>671904</commentid>
    <comment_count>2</comment_count>
    <who name="Kenneth Russell">kbr</who>
    <bug_when>2012-07-17 19:45:49 -0700</bug_when>
    <thetext>Sorry, I don&apos;t, at least not yet. I only just finished a multi-hour triage to get it to this point. Can you please try to investigate it without one?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>671973</commentid>
    <comment_count>3</comment_count>
    <who name="Ryosuke Niwa">rniwa</who>
    <bug_when>2012-07-17 22:27:39 -0700</bug_when>
    <thetext>(In reply to comment #2)
&gt; Sorry, I don&apos;t, at least not yet. I only just finished a multi-hour triage to get it to this point. Can you please try to investigate it without one?

There have been at least two known regressions with reductions so I&apos;ll work on those two first. I&apos;ve already fixed one of them today and will be working on the other one tonight or tomorrow morning. Hopefully fixing those two will resolve this one as well.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>673971</commentid>
    <comment_count>4</comment_count>
    <who name="Ryosuke Niwa">rniwa</who>
    <bug_when>2012-07-19 15:21:45 -0700</bug_when>
    <thetext>Fixed in http://trac.webkit.org/changeset/122930.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>