[Webkit-unassigned] [Bug 79554] DFG should support activations and nested functions

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=79554





--- Comment #6 from Filip Pizlo <fpizlo at apple.com>  2012-02-25 23:38:59 PST ---
:-(

FYI, I will not have a chance to get to this tonight, but will investigate tomorrow (i.e. around 26 Feb 18:00 GMT or so).

-F



(In reply to comment #5)
> Reopen, because it made inspector tests crash on Qt:
> http://build.webkit.org/results/Qt%20Linux%20Release/r108909%20%2843679%29/results.html
> 
> Maybe on GTK too, but GTK doesn't run these tests for some reason.
> It might be a 32 bit related bug, not Qt related.
> 
> crash log for fast/harness/results.html:
> 
> 1   0x8066e5b /ramdisk/qt-linux-release/build/WebKitBuild/Release/bin/DumpRenderTree() [0x8066e5b]
> 2   0xf7723400 [0xf7723400]
> 3   0xf6db35f7 /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(operationTearOffActivation+0x17) [0xf6db35f7]
> 4   0xef915fc2 [0xef915fc2]
> 5   0xf6e10811 /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)+0x401) [0xf6e10811]
> 6   0xf6f0bf86 /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)+0x66) [0xf6f0bf86]
> 7   0xf6f0137e /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0x1aa137e) [0xf6f0137e]
> 8   0xefa591a9 [0xefa591a9]
> 9   0xf6e10811 /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)+0x401) [0xf6e10811]
> 10  0xf6f0bf86 /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)+0x66) [0xf6f0bf86]
> 11  0xf5defa63 /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*)+0x453) [0xf5defa63]
> 12  0xf5fd276d /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::EventTarget::fireEventListeners(WebCore::Event*, WebCore::EventTargetData*, WTF::Vector<WebCore::RegisteredEventListener, 1u>&)+0x12d) [0xf5fd276d]
> 13  0xf5fd292d /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::EventTarget::fireEventListeners(WebCore::Event*)+0x5d) [0xf5fd292d]
> 14  0xf6348b1a /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::DOMWindow::dispatchEvent(WTF::PassRefPtr<WebCore::Event>, WTF::PassRefPtr<WebCore::EventTarget>)+0xca) [0xf6348b1a]
> 15  0xf634fb77 /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::DOMWindow::dispatchLoadEvent()+0x117) [0xf634fb77]
> 16  0xf5f895be /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::Document::dispatchWindowLoadEvent()+0x2e) [0xf5f895be]
> 17  0xf5f930ee /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::Document::implicitClose()+0x12e) [0xf5f930ee]
> 18  0xf62d0474 /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::FrameLoader::checkCallImplicitClose()+0x74) [0xf62d0474]
> 19  0xf62d9551 /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::FrameLoader::checkCompleted()+0xc1) [0xf62d9551]
> 20  0xf62d96bd /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::FrameLoader::loadDone()+0x1d) [0xf62d96bd]
> 21  0xf62be82b /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::CachedResourceLoader::loadDone()+0x4b) [0xf62be82b]
> 22  0xf630e6cf /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::SubresourceLoader::releaseResources()+0x5f) [0xf630e6cf]
> 23  0xf63044ba /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::ResourceLoader::didFinishLoading(double)+0x3a) [0xf63044ba]
> 24  0xf630ef91 /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::SubresourceLoader::didFinishLoading(double)+0xe1) [0xf630ef91]
> 25  0xf6303f81 /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::ResourceLoader::didFinishLoading(WebCore::ResourceHandle*, double)+0x71) [0xf6303f81]
> 26  0xf661b93d /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::QNetworkReplyHandler::finish()+0x1bd) [0xf661b93d]
> 27  0xf66182a4 /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::QNetworkReplyHandlerCallQueue::flush()+0x64) [0xf66182a4]
> 28  0xf6618844 /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::QNetworkReplyHandlerCallQueue::push(void (WebCore::QNetworkReplyHandler::*)())+0x34) [0xf6618844]
> 29  0xf661888f /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(WebCore::QNetworkReplyWrapper::didReceiveFinished()+0x3f) [0xf661888f]
> 30  0xf661afd8 /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0x11bafd8) [0xf661afd8]
> 31  0xf3b38af4 /usr/local/Trolltech/Qt-4.8.0/lib/libQtCore.so.4(QMetaObject::activate(QObject*, QMetaObject const*, int, void**)+0x274) [0xf3b38af4]

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