[Webkit-unassigned] [Bug 178013] New: Regression(r220210?) Crash at com.apple.WebCore: WebCore::JSMutationCallback::handleEvent + 419
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Fri Oct 6 09:42:38 PDT 2017
https://bugs.webkit.org/show_bug.cgi?id=178013
Bug ID: 178013
Summary: Regression(r220210?) Crash at com.apple.WebCore:
WebCore::JSMutationCallback::handleEvent + 419
Product: WebKit
Version: WebKit Nightly Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: Bindings
Assignee: webkit-unassigned at lists.webkit.org
Reporter: cdumez at apple.com
CC: cdumez at apple.com, sam at webkit.org
Crash at com.apple.WebCore: WebCore::JSMutationCallback::handleEvent + 419:
Thread[0] EXC_BAD_ACCESS (SIGSEGV) (KERN_INVALID_ADDRESS at 0x0000000000000000)
[ 0] 0x000000010f3242d5 WebCore`WebCore::JSCallbackData::invokeCallback(WebCore::JSDOMGlobalObject&, JSC::JSObject*, JSC::JSValue, JSC::MarkedArgumentBuffer&, WebCore::JSCallbackData::CallbackType, JSC::PropertyName, WTF::NakedPtr<JSC::Exception>&) [inlined] JSC::JSCell::structure(JSC::VM&) const at JSCellInlines.h:115:28
0x000000010f3242c4: orq $0x98, %rcx
0x000000010f3242cb: testb $0x8, %bl
0x000000010f3242ce: cmovneq %rax, %rcx
0x000000010f3242d2: movq (%rcx), %rax
-> 0x000000010f3242d5: movl (%rbx), %ecx
0x000000010f3242d7: andl $0x7fffffff, %ecx ; imm = 0x7FFFFFFF
0x000000010f3242dd: movq 0xe8(%rax), %rax
0x000000010f3242e4: movq (%rax,%rcx,8), %rax
0x000000010f3242e8: movq 0x40(%rax), %rax
[ 0] 0x000000010f3242d5 WebCore`WebCore::JSCallbackData::invokeCallback(WebCore::JSDOMGlobalObject&, JSC::JSObject*, JSC::JSValue, JSC::MarkedArgumentBuffer&, WebCore::JSCallbackData::CallbackType, JSC::PropertyName, WTF::NakedPtr<JSC::Exception>&) [inlined] JSC::JSCell::methodTable(JSC::VM&) const at JSCellInlines.h:259
[ 0] 0x000000010f3242d5 WebCore`WebCore::JSCallbackData::invokeCallback(WebCore::JSDOMGlobalObject&, JSC::JSObject*, JSC::JSValue, JSC::MarkedArgumentBuffer&, WebCore::JSCallbackData::CallbackType, JSC::PropertyName, WTF::NakedPtr<JSC::Exception>&) [inlined] JSC::JSCell::methodTable() const + 36 at JSCellInlines.h:254
[ 0] 0x000000010f3242b1 WebCore`WebCore::JSCallbackData::invokeCallback(WebCore::JSDOMGlobalObject&, JSC::JSObject*, JSC::JSValue, JSC::MarkedArgumentBuffer&, WebCore::JSCallbackData::CallbackType, JSC::PropertyName, WTF::NakedPtr<JSC::Exception>&) + 65 at JSCallbackData.cpp:53
49 CallType callType = CallType::None;
50
51 if (method != CallbackType::Object) {
52 function = callback;
-> 53 callType = callback->methodTable()->getCallData(callback, callData);
54 }
55 if (callType == CallType::None) {
56 if (method == CallbackType::Function) {
57 returnedException = JSC::Exception::create(exec->vm(), createTypeError(exec));
[ 1] 0x000000010f59e0d2 WebCore`WebCore::JSMutationCallback::handleEvent(WebCore::MutationObserver&, WTF::Vector<WTF::Ref<WebCore::MutationRecord>, 0ul, WTF::CrashOnOverflow, 16ul> const&, WebCore::MutationObserver&) [inlined] WebCore::JSCallbackDataWeak::invokeCallback(JSC::JSValue, JSC::MarkedArgumentBuffer&, WebCore::JSCallbackData::CallbackType, JSC::PropertyName, WTF::NakedPtr<JSC::Exception>&) + 88 at JSCallbackData.h:115:16
[ 1] 0x000000010f59e07a WebCore`WebCore::JSMutationCallback::handleEvent(WebCore::MutationObserver&, WTF::Vector<WTF::Ref<WebCore::MutationRecord>, 0ul, WTF::CrashOnOverflow, 16ul> const&, WebCore::MutationObserver&) + 330 at JSMutationCallback.cpp:75
[ 2] 0x000000010f876be2 WebCore`WebCore::MutationObserver::deliver() + 818 at MutationObserver.cpp:235:5
[ 3] 0x000000010f877347 WebCore`WebCore::MutationObserver::notifyMutationObservers() + 1719 at MutationObserver.cpp:283:17
[ 4] 0x000000010f8776c8 WebCore`WebCore::MutationObserverMicrotask::run() + 8 at MutationObserver.cpp:163:9
[ 5] 0x000000010f860b79 WebCore`WebCore::MicrotaskQueue::performMicrotaskCheckpoint() + 121 at Microtasks.cpp:85:27
[ 6] 0x000000010f574cc5 WebCore`WebCore::JSMainThreadExecState::didLeaveScriptContext(JSC::ExecState*) + 21 at JSMainThreadExecState.cpp:40:5
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