Bug 69513

This is the backtrace: Program received signal SIGSEGV, Segmentation fault. 0x00007fd44021d710 in WebCore::EventSource::didFail (this=0x2354c40, error=...) at ../../../Source/WebCore/page/EventSource.cpp:256 256 ASSERT(m_state != CLOSED); (gdb) bt #0 0x00007fd44021d710 in WebCore::EventSource::didFail (this=0x2354c40, error=...) at ../../../Source/WebCore/page/EventSource.cpp:256 #1 0x00007fd44016b6dc in WebCore::DocumentThreadableLoader::didFail (this=0x2357bf0, loader=0x2358de0, error=...) at ../../../Source/WebCore/loader/DocumentThreadableLoader.cpp:288 #2 0x00007fd4401c0c6d in WebCore::SubresourceLoader::willCancel (this=0x2358de0, error=...) at ../../../Source/WebCore/loader/SubresourceLoader.cpp:224 #3 0x00007fd4401b7582 in WebCore::ResourceLoader::cancel (this=0x2358de0, error=...) at ../../../Source/WebCore/loader/ResourceLoader.cpp:370 #4 0x00007fd4401b74c3 in WebCore::ResourceLoader::cancel (this=0x2358de0) at ../../../Source/WebCore/loader/ResourceLoader.cpp:350 #5 0x00007fd440161717 in WebCore::cancelAll (loaders=...) at ../../../Source/WebCore/loader/DocumentLoader.cpp:71 #6 0x00007fd440163e78 in WebCore::DocumentLoader::stopLoadingSubresources (this=0x22ac600) at ../../../Source/WebCore/loader/DocumentLoader.cpp:748 #7 0x00007fd4401624e1 in WebCore::DocumentLoader::stopLoading (this=0x22ac600) at ../../../Source/WebCore/loader/DocumentLoader.cpp:258 #8 0x00007fd4401767e0 in WebCore::FrameLoader::stopAllLoaders (this=0x2279d18, clearProvisionalItemPolicy=WebCore::ShouldClearProvisionalItem) at ../../../Source/WebCore/loader/FrameLoader.cpp:1601 #9 0x00007fd440176838 in WebCore::FrameLoader::stopForUserCancel (this=0x2279d18, deferCheckLoadComplete=false) at ../../../Source/WebCore/loader/FrameLoader.cpp:1617 #10 0x00007fd43fb8a234 in WebKit::WebPage::stopLoading (this=0x2256c10) at ../../../Source/WebKit2/WebProcess/WebPage/WebPage.cpp:597 #11 0x00007fd43fafe9b4 in WKBundlePageStopLoading (pageRef=0x2256c10) at ../../../Source/WebKit2/WebProcess/InjectedBundle/API/c/WKBundlePage.cpp:131 #12 0x00007fd3fa32d0a3 in WTR::InjectedBundlePage::stopLoading (this=0x22be0c0) at ../../../Tools/WebKitTestRunner/InjectedBundle/InjectedBundlePage.cpp:294 #13 0x00007fd3fa32a87a in WTR::InjectedBundle::done (this=0x22396d0) at ../../../Tools/WebKitTestRunner/InjectedBundle/InjectedBundle.cpp:214 #14 0x00007fd3fa32e095 in WTR::InjectedBundlePage::dump (this=0x22be0c0) at ../../../Tools/WebKitTestRunner/InjectedBundle/InjectedBundlePage.cpp:586 #15 0x00007fd3fa333c61 in WTR::LayoutTestController::notifyDone (this=0x22ab250) at ../../../Tools/WebKitTestRunner/InjectedBundle/LayoutTestController.cpp:170 #16 0x00007fd3fa33ad16 in WTR::JSLayoutTestController::notifyDone (context=0x7fd3f96d7088, thisObject=0x7fd3f96d2ba0, argumentCount=0, arguments=0x7fff65d2f688, exception=0x7fff65d2f728) at DerivedSources/InjectedBundle/JSLayoutTestController.cpp:191 #17 0x00007fd43e987532 in JSC::JSCallbackFunction::call (exec=0x7fd3f96d7088) at ../../../Source/JavaScriptCore/API/JSCallbackFunction.cpp:73 #18 0x00007fd43ea548b8 in JSC::cti_op_call_NotJSFunction (args=0x7fff65d2f860) at ../../../Source/JavaScriptCore/jit/JITStubs.cpp:2323 #19 0x00007fd43ea4fd61 in JSC::JITThunks::tryCacheGetByID (callFrame=0x7fd3f96d2ba0, codeBlock=0x3ea2147e, returnAddress=..., baseValue=..., propertyName="䡕荈წ襈譈襈ꕠ譈襈쏉䡕荈წ襈襈譈譈襈䣖잉쿨ﭒ짿郃䡕荈⃬襈襈譈襈詰�襈⻫譈譈塀蕈瓀䠕䖋䣠ᖋ諺b襈렐\001\000\341\267\253譈譈\340\241\200襈荈ༀ삕삄왵¸\000준郃䡕䡓䡸綉䢈疉䢀䖋䢀잉�\357\265\205蓿瓀ᐲ�䟩\001䠀䖋䢀잉燨ﴛ䣿䖉䣠䖋䢈잉凨ﲖ䣿䖉䣘䖋䢈잉퇨ﶉ䣿䖉ï\000譈譈桀襈큅荈큽ༀ첄\000䠀䗇¸\000䠀喋䢀䖍䢐횉襈⁆�赈롕譈�譈譌큅襈뫑\003\000襈䣞잉ａ䣐䖉䣈䖍䢐잉ᗨﮰ䣿䖋䢸삅ぴ譈롕譈聅襈䣖잉䧨\357\267\237䣿"..., slot=..., stubInfo=0x7fd3f96d1320) at ../../../Source/JavaScriptCore/jit/JITStubs.cpp:940 #20 0x00007fff65d2f880 in ?? () #21 0x00007fd3f96d1320 in ?? () #22 0x0000000000000008 in ?? () #23 0x00007fd300000001 in ?? () #24 0x00007fd3fad782d9 in ?? () #25 0x00007fd43e998ba1 in JSC::Register::Register (this=0xe8c78948de894810) at ../../../Source/JavaScriptCore/interpreter/Register.h:93