[Webkit-unassigned] [Bug 127474] [GTK] Loading page into WebView shows g_closure_unref warning

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Feb 13 05:18:54 PST 2015 

https://bugs.webkit.org/show_bug.cgi?id=127474

--- Comment #3 from Milan Crha <mcrha at redhat.com> ---
Valgrind report for the warning from WebKitGTK+ 2.4.8:

Invalid read of size 8
    at 0x3A8020F529: g_closure_unref (gclosure.c:581)
    by 0xA7EBEF2: void WTF::derefGPtr<_GClosure>(_GClosure*) (GRefPtr.cpp:159)
    by 0x8663B0D: WTF::GRefPtr<_GClosure>::operator=(_GClosure*) (GRefPtr.h:142)
    by 0x8663872: WebCore::GObjectEventListener::gobjectDestroyed() (GObjectEventListener.cpp:61)
    by 0x8663A27: WebCore::GObjectEventListener::gobjectDestroyedCallback(WebCore::GObjectEventListener*, _GObject*) (GObjectEventListener.h:50)
    by 0x3A80213BDE: weak_refs_notify (gobject.c:2630)
    by 0x3A80214CBB: g_object_unref (gobject.c:3133)
    by 0x86619C6: WebKit::DOMObjectCache::clearByFrame(WebCore::Frame*) (DOMObjectCache.cpp:109)
    by 0x742980B: WebKit::FrameLoaderClient::setMainFrameDocumentReady(bool) (FrameLoaderClientGtk.cpp:583)
    by 0x7D29833: WebCore::FrameLoader::closeOldDataSources() (FrameLoader.cpp:2067)
    by 0x7D28B34: WebCore::FrameLoader::commitProvisionalLoad() (FrameLoader.cpp:1817)
    by 0x7D0A8BA: WebCore::DocumentLoader::commitIfReady() (DocumentLoader.cpp:354)
    by 0x7D0C4FC: WebCore::DocumentLoader::commitLoad(char const*, int) (DocumentLoader.cpp:765)
    by 0x7D0CA2C: WebCore::DocumentLoader::dataReceived(WebCore::CachedResource*, char const*, int) (DocumentLoader.cpp:892)
    by 0x7D0C440: WebCore::DocumentLoader::continueAfterContentPolicy(WebCore::PolicyAction) (DocumentLoader.cpp:752)
    by 0x7D0BD9F: WebCore::DocumentLoader::responseReceived(WebCore::CachedResource*, WebCore::ResourceResponse const&) (DocumentLoader.cpp:655)
    by 0x7D0AEEC: WebCore::DocumentLoader::handleSubstituteDataLoadNow(WebCore::Timer<WebCore::DocumentLoader>*) (DocumentLoader.cpp:475)
    by 0x7D16E7F: void std::_Mem_fn<void (WebCore::DocumentLoader::*)(WebCore::Timer<WebCore::DocumentLoader>*)>::operator()<WebCore::Timer<WebCore::DocumentLoader>*&, void>(WebCore::DocumentLoader*, WebCore::Timer<WebCore::DocumentLoader>*&) const (in /build/local/lib/libwebkitgtk-3.0.so.0.22.14)
    by 0x7D16738: void std::_Bind<std::_Mem_fn<void (WebCore::DocumentLoader::*)(WebCore::Timer<WebCore::DocumentLoader>*)> (WebCore::DocumentLoader*, WebCore::Timer<WebCore::DocumentLoader>*)>::__call<void, , 0ul, 1ul>(std::tuple<>&&, std::_Index_tuple<0ul, 1ul>) (functional:1264)
    by 0x7D1590B: void std::_Bind<std::_Mem_fn<void (WebCore::DocumentLoader::*)(WebCore::Timer<WebCore::DocumentLoader>*)> (WebCore::DocumentLoader*, WebCore::Timer<WebCore::DocumentLoader>*)>::operator()<, void>() (functional:1323)
    by 0x7D145A6: std::_Function_handler<void (), std::_Bind<std::_Mem_fn<void (WebCore::DocumentLoader::*)(WebCore::Timer<WebCore::DocumentLoader>*)> (WebCore::DocumentLoader*, WebCore::Timer<WebCore::DocumentLoader>*)> >::_M_invoke(std::_Any_data const&) (functional:2039)
    by 0x741B7DB: std::function<void ()>::operator()() const (functional:2439)
    by 0x7D17623: WebCore::Timer<WebCore::DocumentLoader>::fired() (Timer.h:132)
    by 0x75A9892: WebCore::ThreadTimers::sharedTimerFiredInternal() (ThreadTimers.cpp:132)
    by 0x75A978A: WebCore::ThreadTimers::sharedTimerFired() (ThreadTimers.cpp:107)
    by 0x75D67BA: WebCore::sharedTimerTimeoutCallback(void*) (SharedTimerGtk.cpp:49)
    by 0x3A7F64A552: g_timeout_dispatch (gmain.c:4520)
    by 0x3A7F649AEA: g_main_dispatch (gmain.c:3111)
    by 0x3A7F649AEA: g_main_context_dispatch (gmain.c:3710)
    by 0x3A7F649E87: g_main_context_iterate.isra.29 (gmain.c:3781)
    by 0x3A7F64A1B1: g_main_loop_run (gmain.c:3975)
    by 0x319E9EBE84: gtk_main (gtkmain.c:1207)
    by 0x404B7F: main (main.c:629)
  Address 0x13bf5480 is 32 bytes inside a block of size 72 free'd
    at 0x4A07CE9: free (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
    by 0x3A7F64F7FE: g_free (gmem.c:190)
    by 0xA7EBEF2: void WTF::derefGPtr<_GClosure>(_GClosure*) (GRefPtr.cpp:159)
    by 0x8663AAD: WTF::GRefPtr<_GClosure>::~GRefPtr() (GRefPtr.h:70)
    by 0x866374E: WebCore::GObjectEventListener::~GObjectEventListener() (GObjectEventListener.cpp:44)
    by 0x86637C7: WebCore::GObjectEventListener::~GObjectEventListener() (GObjectEventListener.cpp:49)
    by 0x7649707: WTF::RefCounted<WebCore::EventListener>::deref() (RefCounted.h:147)
    by 0x7649BA4: derefIfNotNull<WebCore::EventListener> (PassRefPtr.h:39)
    by 0x7649BA4: ~RefPtr (RefPtr.h:55)
    by 0x7649BA4: WebCore::RegisteredEventListener::~RegisteredEventListener() (RegisteredEventListener.h:32)
    by 0x78F199E: WebCore::removeListenerFromVector(WTF::Vector<WebCore::RegisteredEventListener, 1ul, WTF::CrashOnOverflow>*, WebCore::EventListener*, bool, unsigned long&) (EventListenerMap.cpp:144)
    by 0x78F1A3F: WebCore::EventListenerMap::remove(WTF::AtomicString const&, WebCore::EventListener*, bool, unsigned long&) (EventListenerMap.cpp:153)
    by 0x78FA475: WebCore::EventTarget::removeEventListener(WTF::AtomicString const&, WebCore::EventListener*, bool) (EventTarget.cpp:88)
    by 0x791FC50: WebCore::tryRemoveEventListener(WebCore::Node*, WTF::AtomicString const&, WebCore::EventListener*, bool) (Node.cpp:1832)
    by 0x791FD36: WebCore::Node::removeEventListener(WTF::AtomicString const&, WebCore::EventListener*, bool) (Node.cpp:1868)
    by 0x8663851: WebCore::GObjectEventListener::gobjectDestroyed() (GObjectEventListener.cpp:60)
    by 0x8663A27: WebCore::GObjectEventListener::gobjectDestroyedCallback(WebCore::GObjectEventListener*, _GObject*) (GObjectEventListener.h:50)
    by 0x3A80213BDE: weak_refs_notify (gobject.c:2630)
    by 0x3A80214CBB: g_object_unref (gobject.c:3133)
    by 0x86619C6: WebKit::DOMObjectCache::clearByFrame(WebCore::Frame*) (DOMObjectCache.cpp:109)
    by 0x742980B: WebKit::FrameLoaderClient::setMainFrameDocumentReady(bool) (FrameLoaderClientGtk.cpp:583)
    by 0x7D29833: WebCore::FrameLoader::closeOldDataSources() (FrameLoader.cpp:2067)
    by 0x7D28B34: WebCore::FrameLoader::commitProvisionalLoad() (FrameLoader.cpp:1817)
    by 0x7D0A8BA: WebCore::DocumentLoader::commitIfReady() (DocumentLoader.cpp:354)
    by 0x7D0C4FC: WebCore::DocumentLoader::commitLoad(char const*, int) (DocumentLoader.cpp:765)
    by 0x7D0CA2C: WebCore::DocumentLoader::dataReceived(WebCore::CachedResource*, char const*, int) (DocumentLoader.cpp:892)
    by 0x7D0C440: WebCore::DocumentLoader::continueAfterContentPolicy(WebCore::PolicyAction) (DocumentLoader.cpp:752)
    by 0x7D0BD9F: WebCore::DocumentLoader::responseReceived(WebCore::CachedResource*, WebCore::ResourceResponse const&) (DocumentLoader.cpp:655)
    by 0x7D0AEEC: WebCore::DocumentLoader::handleSubstituteDataLoadNow(WebCore::Timer<WebCore::DocumentLoader>*) (DocumentLoader.cpp:475)
    by 0x7D16E7F: void std::_Mem_fn<void (WebCore::DocumentLoader::*)(WebCore::Timer<WebCore::DocumentLoader>*)>::operator()<WebCore::Timer<WebCore::DocumentLoader>*&, void>(WebCore::DocumentLoader*, WebCore::Timer<WebCore::DocumentLoader>*&) const (in /build/local/lib/libwebkitgtk-3.0.so.0.22.14)
    by 0x7D16738: void std::_Bind<std::_Mem_fn<void (WebCore::DocumentLoader::*)(WebCore::Timer<WebCore::DocumentLoader>*)> (WebCore::DocumentLoader*, WebCore::Timer<WebCore::DocumentLoader>*)>::__call<void, , 0ul, 1ul>(std::tuple<>&&, std::_Index_tuple<0ul, 1ul>) (functional:1264)
    by 0x7D1590B: void std::_Bind<std::_Mem_fn<void (WebCore::DocumentLoader::*)(WebCore::Timer<WebCore::DocumentLoader>*)> (WebCore::DocumentLoader*, WebCore::Timer<WebCore::DocumentLoader>*)>::operator()<, void>() (functional:1323)
    by 0x7D145A6: std::_Function_handler<void (), std::_Bind<std::_Mem_fn<void (WebCore::DocumentLoader::*)(WebCore::Timer<WebCore::DocumentLoader>*)> (WebCore::DocumentLoader*, WebCore::Timer<WebCore::DocumentLoader>*)> >::_M_invoke(std::_Any_data const&) (functional:2039)
    by 0x741B7DB: std::function<void ()>::operator()() const (functional:2439)
    by 0x7D17623: WebCore::Timer<WebCore::DocumentLoader>::fired() (Timer.h:132)
    by 0x75A9892: WebCore::ThreadTimers::sharedTimerFiredInternal() (ThreadTimers.cpp:132)
    by 0x75A978A: WebCore::ThreadTimers::sharedTimerFired() (ThreadTimers.cpp:107)
    by 0x75D67BA: WebCore::sharedTimerTimeoutCallback(void*) (SharedTimerGtk.cpp:49)
    by 0x3A7F64A552: g_timeout_dispatch (gmain.c:4520)
    by 0x3A7F649AEA: g_main_dispatch (gmain.c:3111)
    by 0x3A7F649AEA: g_main_context_dispatch (gmain.c:3710)
    by 0x3A7F649E87: g_main_context_iterate.isra.29 (gmain.c:3781)
    by 0x3A7F64A1B1: g_main_loop_run (gmain.c:3975)
    by 0x319E9EBE84: gtk_main (gtkmain.c:1207)
    by 0x404B7F: main (main.c:629)

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