<html>
    <head>
      <base href="https://bugs.webkit.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Web Inspector: Filtering in Timelines causes the UI to hang"
   href="https://bugs.webkit.org/show_bug.cgi?id=163818">163818</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Web Inspector: Filtering in Timelines causes the UI to hang
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Web Inspector
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>nvasilyev&#64;apple.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>bburg&#64;apple.com, joepeck&#64;webkit.org, mattbaker&#64;apple.com, nvasilyev&#64;apple.com, timothy&#64;apple.com, webkit-bug-importer&#64;group.apple.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>RangeError:​ Maximum call stack size exceeded. (at ListMultimap.js:​30:​55)​
    ListMultimap &#64; ListMultimap.js:​30:​55
    addEventListener &#64; Object.js:​52:​46
    ProfileDataGridNode &#64; ProfileDataGridNode.js:​41:​30
    ?​ &#64; ProfileDataGridNode.js:​261:​74
    forEachChild &#64; CallingContextTreeNode.js:​170:​21
    _populate &#64; ProfileDataGridNode.js:​258:​32
    dispatch &#64; Object.js:​170:​30
    dispatchEventToListeners &#64; Object.js:​177:​17
    expand &#64; DataGridNode.js:​466:​42
    makeVisible &#64; DataGrid.js:​443:​43
    _applyFiltersToNode &#64; DataGrid.js:​452:​24
    _applyFiltersToNodeAndDispatchEvent &#64; DataGrid.js:​391:​33
    insertChild &#64; DataGrid.js:​1199:​58
    appendChild &#64; DataGrid.js:​1153:​25
    ...
    ?​ &#64; ProfileDataGridNode.js:​261:​37
    forEachChild &#64; CallingContextTreeNode.js:​170:​21
    _populate &#64; ProfileDataGridNode.js:​258:​32
    dispatch &#64; Object.js:​170:​30
    dispatchEventToListeners &#64; Object.js:​177:​17
    expand &#64; DataGridNode.js:​466:​42
    makeVisible &#64; DataGrid.js:​443:​43
    _applyFiltersToNode &#64; DataGrid.js:​452:​24
    _applyFiltersToNodeAndDispatchEvent &#64; DataGrid.js:​391:​33
    insertChild &#64; DataGrid.js:​1199:​58
    appendChild &#64; DataGrid.js:​1153:​25
    ?​ &#64; ProfileDataGridNode.js:​261:​37
    forEachChild &#64; CallingContextTreeNode.js:​170:​21
    _populate &#64; ProfileDataGridNode.js:​258:​32
    dispatch &#64; Object.js:​170:​30
    dispatchEventToListeners &#64; Object.js:​177:​17
    traverseNextNode &#64; DataGridNode.js:​585:​42
    ?​ &#64; DataGrid.js:​1871:​59
    generatorResume &#64; [native code]​
    ?​ &#64; YieldableTask.js:​77:​27
    generatorResume &#64; [native code]​
    _processPendingItems &#64; YieldableTask.js:​128:​45
    start &#64; YieldableTask.js:​108:​34
    _updateFilter &#64; DataGrid.js:​1880:​43
    _updateFilter &#64; [native code]​

Full stack:
<a href="https://gist.github.com/NV/dcde33813095c3f351f530b17bf22ba9">https://gist.github.com/NV/dcde33813095c3f351f530b17bf22ba9</a></pre>
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