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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - DFG Worklist Worker Thread crash in CFGSimplificationPhase"
href="https://bugs.webkit.org/show_bug.cgi?id=162388">162388</a>
</td>
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<th>Summary</th>
<td>DFG Worklist Worker Thread crash in CFGSimplificationPhase
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>Safari Technology Preview
</td>
</tr>
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<th>Hardware</th>
<td>Unspecified
</td>
</tr>
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<th>OS</th>
<td>OS X 10.11
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>Critical
</td>
</tr>
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<th>Priority</th>
<td>P2
</td>
</tr>
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<th>Component</th>
<td>WebCore JavaScript
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>tolaiti2@gmail.com
</td>
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<pre>Created <span class=""><a href="attachment.cgi?id=289556" name="attach_289556" title="Stack trace of the crash">attachment 289556</a> <a href="attachment.cgi?id=289556&action=edit" title="Stack trace of the crash">[details]</a></span>
Stack trace of the crash
After a while, the browser reloads the page and says "A problem occurred with this web page, so it was reloaded.".
Browser: Release 13 (Safari 10.0, WebKit 11603.1.5)
Also crashes Safari on iOS 10.
Steps to Reproduce:
1. Unzip example.zip contents (index.html and all.js)
2. Open index.html in Safari (also available at <a href="http://www.feriko.fi/example/">http://www.feriko.fi/example/</a> )
3. Wait for a few seconds.
Expected Results:
No crash. The JavaScript code writes "fuu" in the console indefinitely.
Actual Results:
The browser reloads the page with the message "A problem occurred with this web page, so it was reloaded."
Notes:
The JavaScript code is obtained by compiling a Haskell code to JavaScript using ghcjs . The related issue is reported at <a href="https://github.com/ghcjs/ghcjs/issues/518">https://github.com/ghcjs/ghcjs/issues/518</a>
See the stack trace of the crash (crash.txt).</pre>
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