1183293 - crash at [@ mozilla::a11y::DocAccessibleParent::Unbind() ]

Status: RESOLVED DUPLICATE of bug 1184217

(Core :: General, defect)

Description

[Willy Aguirre [:marti1125]]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0
Build ID: 20150630154324

Steps to reproduce:

I found in the list of top crashes for Firefox Nightly 42.0a1 (20150706030206)
https://crash-stats.mozilla.com/report/index/83f873af-b802-4bbb-9283-ed5122150707

This happens in Windows 8.1 (51.16 %). this signature first appears in 2015-07-06

More reports can be found at:

https://crash-stats.mozilla.com/report/list?product=Firefox&range_value=7&range_unit=days&date=2015-07-13&signature=mozilla%3A%3Aa11y%3A%3ADocAccessibleParent%3A%3AUnbind%28%29&version=Firefox%3A42.0a1#tab-reports

0 	xul.dll 	mozilla::a11y::DocAccessibleParent::Unbind() 	accessible/ipc/DocAccessibleParent.h
1 	xul.dll 	mozilla::a11y::ProxyAccessible::Shutdown() 	accessible/ipc/ProxyAccessible.cpp
2 	xul.dll 	mozilla::a11y::ProxyAccessible::Shutdown() 	accessible/ipc/ProxyAccessible.cpp
3 	xul.dll 	mozilla::a11y::ProxyAccessible::Shutdown() 	accessible/ipc/ProxyAccessible.cpp
4 	xul.dll 	mozilla::a11y::ProxyAccessible::Shutdown() 	accessible/ipc/ProxyAccessible.cpp
5 	xul.dll 	mozilla::a11y::ProxyAccessible::Shutdown() 	accessible/ipc/ProxyAccessible.cpp
6 	xul.dll 	mozilla::a11y::ProxyAccessible::Shutdown() 	accessible/ipc/ProxyAccessible.cpp
7 	xul.dll 	mozilla::a11y::ProxyAccessible::Shutdown() 	accessible/ipc/ProxyAccessible.cpp
8 	xul.dll 	mozilla::a11y::DocAccessibleParent::RecvHideEvent(unsigned __int64 const&) 	accessible/ipc/DocAccessibleParent.cpp
9 	xul.dll 	mozilla::a11y::PDocAccessibleParent::OnMessageReceived(IPC::Message const&) 	obj-firefox/ipc/ipdl/PDocAccessibleParent.cpp
10 	xul.dll 	mozilla::dom::PContentParent::OnMessageReceived(IPC::Message const&) 	obj-firefox/ipc/ipdl/PContentParent.cpp
11 	xul.dll 	mozilla::ipc::MessageChannel::OnMaybeDequeueOne() 	ipc/glue/MessageChannel.cpp
12 	xul.dll 	RunnableMethod<SoftwareDisplay, void ( SoftwareDisplay::*)(void), Tuple0>::Run() 	ipc/chromium/src/base/task.h
13 	xul.dll 	MessageLoop::DoWork() 	ipc/chromium/src/base/message_loop.cc
14 	xul.dll 	mozilla::ipc::DoWorkRunnable::Run() 	ipc/glue/MessagePump.cpp
15 	xul.dll 	nsThread::ProcessNextEvent(bool, bool*) 	xpcom/threads/nsThread.cpp
16 	xul.dll 	NS_ProcessNextEvent(nsIThread*, bool) 	xpcom/glue/nsThreadUtils.cpp
17 	xul.dll 	mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) 	ipc/glue/MessagePump.cpp
18 	xul.dll 	MessageLoop::RunHandler() 	ipc/chromium/src/base/message_loop.cc
19 	xul.dll 	MessageLoop::Run() 	ipc/chromium/src/base/message_loop.cc
20 	xul.dll 	nsBaseAppShell::Run() 	widget/nsBaseAppShell.cpp
21 	xul.dll 	nsAppShell::Run() 	widget/windows/nsAppShell.cpp
22 	xul.dll 	nsAppStartup::Run() 	toolkit/components/startup/nsAppStartup.cpp
23 	xul.dll 	XREMain::XRE_mainRun() 	toolkit/xre/nsAppRunner.cpp
24 	xul.dll 	XREMain::XRE_main(int, char** const, nsXREAppData const*) 	toolkit/xre/nsAppRunner.cpp
25 	xul.dll 	XRE_main 	toolkit/xre/nsAppRunner.cpp
26 	firefox.exe 	do_main 	browser/app/nsBrowserApp.cpp
27 	firefox.exe 	NS_internal_main(int, char**) 	browser/app/nsBrowserApp.cpp
28 	firefox.exe 	wmain 	toolkit/xre/nsWindowsWMain.cpp
29 	firefox.exe 	__tmainCRTStartup 	f:/dd/vctools/crt/crtw32/startup/crt0.c:255
30 	kernel32.dll 	BaseThreadInitThunk 	
31 	ntdll.dll 	RtlUserThreadStart 	
32 	kernel32.dll 	BasepReportFault 	
33 	kernel32.dll 	BasepReportFault 	





Actual results:

It crashed



Expected results:

It should not crash