<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!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>119279</bug_id>
          
          <creation_ts>2013-07-30 14:46:28 -0700</creation_ts>
          <short_desc>Speculative fix for crash due to string access on multiple threads</short_desc>
          <delta_ts>2013-07-30 21:14:52 -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>WebKit2</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Anders Carlsson">andersca</reporter>
          <assigned_to name="Anders Carlsson">andersca</assigned_to>
          <cc>darin</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>913033</commentid>
    <comment_count>0</comment_count>
    <who name="Anders Carlsson">andersca</who>
    <bug_when>2013-07-30 14:46:28 -0700</bug_when>
    <thetext>Speculative fix for crash due to string access on multiple threads</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>913035</commentid>
    <comment_count>1</comment_count>
      <attachid>207768</attachid>
    <who name="Anders Carlsson">andersca</who>
    <bug_when>2013-07-30 14:53:47 -0700</bug_when>
    <thetext>Created attachment 207768
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>913047</commentid>
    <comment_count>2</comment_count>
    <who name="Anders Carlsson">andersca</who>
    <bug_when>2013-07-30 15:19:14 -0700</bug_when>
    <thetext>Committed r153499: &lt;http://trac.webkit.org/changeset/153499&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>913165</commentid>
    <comment_count>3</comment_count>
      <attachid>207768</attachid>
    <who name="Darin Adler">darin</who>
    <bug_when>2013-07-30 21:14:52 -0700</bug_when>
    <thetext>Comment on attachment 207768
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=207768&amp;action=review

&gt; Source/WebKit2/UIProcess/Storage/LocalStorageDatabaseTracker.cpp:56
&gt; +    RefPtr&lt;StringImpl&gt; copiedLocalStorageDirectory = localStorageDirectory.impl() ? localStorageDirectory.impl()-&gt;isolatedCopy() : nullptr;

Is this really better than:

    RefPtr&lt;StringImpl&gt; copiedLocalStorageDirectory = localStorageDirectory.isolatedCopy().impl();

? Wish I had thought of that before you landed it.</thetext>
  </long_desc>
      
          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>207768</attachid>
            <date>2013-07-30 14:53:47 -0700</date>
            <delta_ts>2013-07-30 21:14:52 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-119279-20130730145346.patch</filename>
            <type>text/plain</type>
            <size>3880</size>
            <attacher name="Anders Carlsson">andersca</attacher>
            
              <data encoding="base64">U3VidmVyc2lvbiBSZXZpc2lvbjogMTUzNDg4CmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViS2l0Mi9D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</data>
<flag name="review"
          id="229583"
          type_id="1"
          status="+"
          setter="darin"
    />
          </attachment>
      

    </bug>

</bugzilla>