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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Crash in JavaScriptCore GC when using JSC on dispatch queues (thread_get_state returns NULL stack pointer)"
href="https://bugs.webkit.org/show_bug.cgi?id=160337#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Crash in JavaScriptCore GC when using JSC on dispatch queues (thread_get_state returns NULL stack pointer)"
href="https://bugs.webkit.org/show_bug.cgi?id=160337">bug 160337</a>
from <span class="vcard"><a class="email" href="mailto:nham@fb.com" title="Ben Nham <nham@fb.com>"> <span class="fn">Ben Nham</span></a>
</span></b>
<pre>Ugh, I'm commenting too fast. thread_get_register_pointer_values just leaves the sp output parameter untouched when state.__rsp (or the equivalent register on another arch) is 0x0 and also returns KERN_SUCCESS. I don't see how this behavior would fix this crash. Seems like the simplest workaround is to ignore threads with null stack pointers.</pre>
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