[Webkit-unassigned] [Bug 171927] ASSERTION FAILED in WebCore::AccessibilityNodeObject::insertChild()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=171927

--- Comment #2 from zalan <zalan at apple.com> ---
0   com.apple.JavaScriptCore            0x000000011d0de234 WTFCrash + 36 (Assertions.cpp:292)
1   com.apple.WebCore                   0x000000010fa9b1b1 WebCore::AccessibilityNodeObject::insertChild(WebCore::AccessibilityObject*, unsigned int) + 529 (AccessibilityNodeObject.cpp:372)
2   com.apple.WebCore                   0x000000010fa9b5bd WebCore::AccessibilityNodeObject::addChild(WebCore::AccessibilityObject*) + 77 (AccessibilityNodeObject.cpp:383)
3   com.apple.WebCore                   0x000000010fadf929 WebCore::AccessibilityRenderObject::addChildren() + 217 (AccessibilityRenderObject.cpp:3219)
4   com.apple.WebCore                   0x000000010fab0281 WebCore::AccessibilityObject::updateChildrenIfNecessary() + 81 (AccessibilityObject.cpp:1785)
5   com.apple.WebCore                   0x000000010fadeba6 WebCore::AccessibilityRenderObject::updateChildrenIfNecessary() + 70 (AccessibilityRenderObject.cpp:2999)
6   com.apple.WebCore                   0x000000010faa902c WebCore::AccessibilityObject::updateBackingStore() + 124 (AccessibilityObject.cpp:1727)
7   com.apple.WebCore                   0x0000000112753751 -[WebAccessibilityObjectWrapperBase updateObjectBackingStore] + 113
8   com.apple.WebCore                   0x000000011276b2ab -[WebAccessibilityObjectWrapper accessibilityIsIgnored] + 43 (WebAccessibilityObjectWrapperMac.mm:3282)
9   com.apple.WebCore                   0x000000010fc8f839 WebCore::AXObjectCache::postPlatformNotification(WebCore::AccessibilityObject*, WebCore::AXObjectCache::AXNotification) + 601 (AXObjectCacheMac.mm:351)
10  com.apple.WebCore                   0x000000010fc5f57f WebCore::AXObjectCache::notificationPostTimerFired() + 447 (AXObjectCache.cpp:923)
11  com.apple.WebCore                   0x000000010fc7876b void std::__1::__invoke_void_return_wrapper<void>::__call<std::__1::__bind<void (WebCore::AXObjectCache::*&)(), WebCore::AXObjectCache*>&>(std::__1::__bind<void (WebCore::AXObjectCache::*&)(), WebCore::AXObjectCache*>&&&) + 235 (__functional_base:469)
12  com.apple.WebCore                   0x000000010fc78659 std::__1::__function::__func<std::__1::__bind<void (WebCore::AXObjectCache::*&)(), WebCore::AXObjectCache*>, std::__1::allocator<std::__1::__bind<void (WebCore::AXObjectCache::*&)(), WebCore::AXObjectCache*> >, void ()>::operator()() + 41 (functional:1437)
13  com.apple.WebCore                   0x000000010fae4eba std::__1::function<void ()>::operator()() const + 26 (functional:1817)
14  com.apple.WebCore                   0x000000010fae4dd9 WebCore::Timer::fired() + 25 (Timer.h:135)
15  com.apple.WebCore                   0x00000001126031c0 WebCore::ThreadTimers::sharedTimerFiredInternal() + 480 (ThreadTimers.cpp:121)
16  com.apple.WebCore                   0x0000000112604401 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const + 33 (ThreadTimers.cpp:70)
17  com.apple.WebCore                   0x00000001126043cd void std::__1::__invoke_void_return_wrapper<void>::__call<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0&>(WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0&&&) + 45 (__functional_base:469)
18  com.apple.WebCore                   0x0000000112604379 std::__1::__function::__func<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, std::__1::allocator<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0>, void ()>::operator()() + 41 (functional:1437)
19  com.apple.WebCore                   0x000000010fae4eba std::__1::function<void ()>::operator()() const + 26 (functional:1817)
20  com.apple.WebCore                   0x00000001118a5a88 WebCore::MainThreadSharedTimer::fired() + 104 (MainThreadSharedTimer.cpp:53)
21  com.apple.WebCore                   0x00000001118a5e19 WebCore::timerFired(__CFRunLoopTimer*, void*) + 41 (MainThreadSharedTimerCF.cpp:74)
22  com.apple.CoreFoundation            0x00007fff8ccaede4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
23  com.apple.CoreFoundation            0x00007fff8ccaea73 __CFRunLoopDoTimer + 1075
24  com.apple.CoreFoundation            0x00007fff8ccae5ca __CFRunLoopDoTimers + 298
25  com.apple.CoreFoundation            0x00007fff8cca5fa1 __CFRunLoopRun + 2081
26  com.apple.CoreFoundation            0x00007fff8cca5524 CFRunLoopRunSpecific + 420
27  com.apple.HIToolbox                 0x00007fff8c205ebc RunCurrentEventLoopInMode + 240
28  com.apple.HIToolbox                 0x00007fff8c205cf1 ReceiveNextEventCommon + 432
29  com.apple.HIToolbox                 0x00007fff8c205b26 _BlockUntilNextEventMatchingListInModeWithFilter + 71
30  com.apple.AppKit                    0x00007fff8a7a0e24 _DPSNextEvent + 1120
31  com.apple.AppKit                    0x00007fff8af1c85e -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 2796
32  com.apple.AppKit                    0x00007fff8a7957ab -[NSApplication run] + 926
33  com.apple.AppKit                    0x00007fff8a7601de NSApplicationMain + 1237
34  libxpc.dylib                        0x00007fffa2aa88c7 _xpc_objc_main + 775
35  libxpc.dylib                        0x00007fffa2aa72e4 xpc_main + 494
36  com.apple.WebKit.WebContent         0x000000010b5be115 main + 1189 (XPCServiceMain.mm:148)
37  libdyld.dylib                       0x00007fffa284f235 start + 1

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