Created attachment 43176 [details] crash report from 5:40 (3 minutes before the comment was made) fast/workers/shared-worker-frame-lifecycle.html crashed on Leopard Commit Bot https://bugs.webkit.org/show_bug.cgi?id=31437#c3 Attaching crash report. Thread 0 Crashed: 0 com.apple.WebCore 0x01e376a5 WebCore::RenderBlock::destroy() + 53 (RenderBlock.cpp:172) 1 com.apple.WebCore 0x01def3ba WebCore::Node::detach() + 42 (Node.cpp:1256) 2 com.apple.WebCore 0x01df2fff WebCore::Node::~Node() + 351 3 com.apple.WebCore 0x019dfcf0 WebCore::HTMLDocument::~HTMLDocument() + 144 4 com.apple.WebCore 0x01c81213 WebCore::JSNode::~JSNode() + 243 5 com.apple.JavaScriptCore 0x002746da unsigned long JSC::Heap::sweep<(JSC::HeapType)0>() + 314 (Collector.cpp:1064) 6 com.apple.JavaScriptCore 0x00273e7b JSC::Heap::collect() + 763 (Collector.cpp:1148) Probably related to bug 31480
*** This bug has been marked as a duplicate of bug 31461 ***