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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Implement JSC watchdog support for tail calls"
href="https://bugs.webkit.org/show_bug.cgi?id=147998">147998</a>
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<th>Summary</th>
<td>Implement JSC watchdog support for tail calls
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>528+ (Nightly build)
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<th>Hardware</th>
<td>Unspecified
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<th>OS</th>
<td>Unspecified
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>JavaScriptCore
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>mark.lam@apple.com
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<pre>The existing JSC watchdog mechanism relies on the fact that no JS code can run for long before hitting a loop hint. The only exception to that would be infinitely recursing code, but that would hit a stack overflow eventually and terminate. With the support for tail calls added, we can now have a JS script hang by doing infinite recursion without every hitting a stack overflow. We should teach the watchdog to handle this as well.
Fun!</pre>
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