[Webkit-unassigned] [Bug 153741] New: REGRESSION(r195899): ASSERTION FAILED: is<Target>(source) in EventPath::retargetTouch() since r195899

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Feb 1 05:57:29 PST 2016 

https://bugs.webkit.org/show_bug.cgi?id=153741

            Bug ID: 153741
           Summary: REGRESSION(r195899): ASSERTION FAILED:
                    is<Target>(source) in EventPath::retargetTouch() since
                    r195899
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: Gtk, LayoutTestFailure, Regression
          Severity: Normal
          Priority: P2
         Component: Event Handling
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cgarcia at igalia.com
                CC: koivisto at iki.fi, rniwa at webkit.org

Several touch tests are crashing do to an assert in the GTK+ debug bot since r195899. It seems to be caused by an incorrect cast.

STDERR: ASSERTION FAILED: is<Target>(source)
STDERR: ../../Source/WTF/wtf/TypeCasts.h(80) : typename WTF::match_constness<Source, Target>::type& WTF::downcast(Source&) [with Target = WebCore::MouseOrFocusEventContext; Source = WebCore::EventContext; typename WTF::match_constness<Source, Target>::type = WebCore::MouseOrFocusEventContext]
STDERR: 1   0x7ff5fc7fb68c /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libjavascriptcoregtk-4.0.so.18(WTFCrashWithSecurityImplication+0x1e) [0x7ff5fc7fb68c]
STDERR: 2   0x7ff603423954 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WTF::match_constness<WebCore::EventContext, WebCore::MouseOrFocusEventContext>::type& WTF::downcast<WebCore::MouseOrFocusEventContext, WebCore::EventContext>(WebCore::EventContext&)+0x43) [0x7ff603423954]
STDERR: 3   0x7ff603421934 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WebCore::EventPath::retargetTouch(WebCore::TouchEventContext::TouchListType, WebCore::Touch const&)+0x8e) [0x7ff603421934]
STDERR: 4   0x7ff603421b6f /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WebCore::EventPath::retargetTouchLists(WebCore::TouchEvent const&)+0x61) [0x7ff603421b6f]
STDERR: 5   0x7ff603420a67 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WebCore::EventDispatcher::dispatchEvent(WebCore::Node*, WebCore::Event&)+0x167) [0x7ff603420a67]
STDERR: 6   0x7ff60346447f /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WebCore::Node::dispatchTouchEvent(WebCore::TouchEvent&)+0x23) [0x7ff60346447f]
STDERR: 7   0x7ff6039e31a0 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WebCore::EventHandler::handleTouchEvent(WebCore::PlatformTouchEvent const&)+0x10ee) [0x7ff6039e31a0]
STDERR: 8   0x7ff602b2736d /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(+0x504b36d) [0x7ff602b2736d]
STDERR: 9   0x7ff602b273fa /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WebKit::WebPage::touchEvent(WebKit::WebTouchEvent const&)+0x5a) [0x7ff602b273fa]
STDERR: 10  0x7ff602d3f96c /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(void IPC::callMemberFunctionImpl<WebKit::WebPage, void (WebKit::WebPage::*)(WebKit::WebTouchEvent const&), std::tuple<WebKit::WebTouchEvent>, 0ul>(WebKit::WebPage*, void (WebKit::WebPage::*)(WebKit::WebTouchEvent const&), std::tuple<WebKit::WebTouchEvent>&&, std::index_sequence<0ul>)+0x80) [0x7ff602d3f96c]
STDERR: 11  0x7ff602d3dd54 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(void IPC::callMemberFunction<WebKit::WebPage, void (WebKit::WebPage::*)(WebKit::WebTouchEvent const&), std::tuple<WebKit::WebTouchEvent>, std::make_index_sequence<1ul> >(std::tuple<WebKit::WebTouchEvent>&&, WebKit::WebPage*, void (WebKit::WebPage::*)(WebKit::WebTouchEvent const&))+0x41) [0x7ff602d3dd54]
STDERR: 12  0x7ff602d36f05 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(void IPC::handleMessage<Messages::WebPage::TouchEvent, WebKit::WebPage, void (WebKit::WebPage::*)(WebKit::WebTouchEvent const&)>(IPC::MessageDecoder&, WebKit::WebPage*, void (WebKit::WebPage::*)(WebKit::WebTouchEvent const&))+0xa3) [0x7ff602d36f05]
STDERR: 13  0x7ff602d32069 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WebKit::WebPage::didReceiveWebPageMessage(IPC::Connection&, IPC::MessageDecoder&)+0x6b5) [0x7ff602d32069]
STDERR: 14  0x7ff602b2c896 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WebKit::WebPage::didReceiveMessage(IPC::Connection&, IPC::MessageDecoder&)+0x18a) [0x7ff602b2c896]
STDERR: 15  0x7ff60279c59c /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(IPC::MessageReceiverMap::dispatchMessage(IPC::Connection&, IPC::MessageDecoder&)+0x120) [0x7ff60279c59c]
STDERR: 16  0x7ff6029be846 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WebKit::WebProcess::didReceiveMessage(IPC::Connection&, IPC::MessageDecoder&)+0x4c) [0x7ff6029be846]
STDERR: 17  0x7ff602789bd0 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(IPC::Connection::dispatchMessage(IPC::MessageDecoder&)+0x3a) [0x7ff602789bd0]
STDERR: 18  0x7ff602789d33 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(IPC::Connection::dispatchMessage(std::unique_ptr<IPC::MessageDecoder, std::default_delete<IPC::MessageDecoder> >)+0x161) [0x7ff602789d33]
STDERR: 19  0x7ff602785412 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(IPC::Connection::SyncMessageState::dispatchMessages(IPC::Connection*)+0x158) [0x7ff602785412]
STDERR: 20  0x7ff60278976c /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(IPC::Connection::dispatchSyncMessage(IPC::MessageDecoder&)+0x27e) [0x7ff60278976c]
STDERR: 21  0x7ff602789d13 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(IPC::Connection::dispatchMessage(std::unique_ptr<IPC::MessageDecoder, std::default_delete<IPC::MessageDecoder> >)+0x141) [0x7ff602789d13]
STDERR: 22  0x7ff602785412 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(IPC::Connection::SyncMessageState::dispatchMessages(IPC::Connection*)+0x158) [0x7ff602785412]
STDERR: 23  0x7ff60278779a /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(IPC::Connection::waitForSyncReply(unsigned long, std::chrono::duration<long, std::ratio<1l, 1000l> >, unsigned int)+0x86) [0x7ff60278779a]
STDERR: 24  0x7ff602787225 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(IPC::Connection::sendSyncMessage(unsigned long, std::unique_ptr<IPC::MessageEncoder, std::default_delete<IPC::MessageEncoder> >, std::chrono::duration<long, std::ratio<1l, 1000l> >, unsigned int)+0x265) [0x7ff602787225]
STDERR: 25  0x7ff602b446ea /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(bool IPC::Connection::sendSync<Messages::WebPageProxy::HandleSynchronousMessage>(Messages::WebPageProxy::HandleSynchronousMessage&&, Messages::WebPageProxy::HandleSynchronousMessage::Reply&&, unsigned long, std::chrono::duration<long, std::ratio<1l, 1000l> >, unsigned int)+0xf2) [0x7ff602b446ea]
STDERR: 26  0x7ff602b408de /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(bool IPC::MessageSender::sendSync<Messages::WebPageProxy::HandleSynchronousMessage>(Messages::WebPageProxy::HandleSynchronousMessage&&, Messages::WebPageProxy::HandleSynchronousMessage::Reply&&, unsigned long, std::chrono::duration<long, std::ratio<1l, 1000l> >, unsigned int)+0xba) [0x7ff602b408de]
STDERR: 27  0x7ff602b3a014 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(bool IPC::MessageSender::sendSync<Messages::WebPageProxy::HandleSynchronousMessage>(Messages::WebPageProxy::HandleSynchronousMessage&&, Messages::WebPageProxy::HandleSynchronousMessage::Reply&&, std::chrono::duration<long, std::ratio<1l, 1000l> >, unsigned int)+0x76) [0x7ff602b3a014]
STDERR: 28  0x7ff602b2fe53 /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WebKit::WebPage::postSynchronousMessageForTesting(WTF::String const&, API::Object*, WTF::RefPtr<API::Object>&)+0xb3) [0x7ff602b2fe53]
STDERR: 29  0x7ff602a2c80b /home/slave/webkitgtk/gtk-linux-64-debug/build/WebKitBuild/Debug/lib/libwebkit2gtk-4.0.so.37(WKBundlePagePostSynchronousMessageForTesting+0x7d) [0x7ff602a2c80b]
STDERR: 30  0x7ff5a8432790 /home/slave/webkitgtk/gtk-linux-64-debug-tests/build/WebKitBuild/Debug/lib/libTestRunnerInjectedBundle.so(WTR::EventSendingController::touchStart()+0x106) [0x7ff5a8432790]
STDERR: 31  0x7ff5a845fe4c /home/slave/webkitgtk/gtk-linux-64-debug-tests/build/WebKitBuild/Debug/lib/libTestRunnerInjectedBundle.so(WTR::JSEventSendingController::touchStart(OpaqueJSContext const*, OpaqueJSValue*, OpaqueJSValue*, unsigned long, OpaqueJSValue const* const*, OpaqueJSValue const**)+0x58) [0x7ff5a845fe4c]

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