504108 - Crash [@ nsAccReorderEvent::HasAccessibleInReasonSubtree() ]

Status: RESOLVED WORKSFORME

(Core :: Disability Access APIs, defect)

Description

[Marco Zehe (:MarcoZ)]

Found while harvesting crash-stats for Firefox 3.5 a11y-related crashers:
http://crash-stats.mozilla.com/report/list?product=Firefox&version=Firefox%3A3.5&platform=windows&query_search=signature&query_type=contains&query=Access&date=&range_value=1&range_unit=weeks&do_query=1&signature=nsAccReorderEvent%3A%3AHasAccessibleInReasonSubtree%28%29

Comment 1

[Samuel Sidler (old account; do not CC)]

Crash stack taken from bp-48fdc0f3-5b09-463a-ac4f-ae2ec2090712:

Frame  	Module  	Signature  	Source
0 	xul.dll 	nsAccReorderEvent::HasAccessibleInReasonSubtree() 	accessible/src/base/nsAccessibleEventData.cpp:480
1 	xul.dll 	nsAccEvent::CoalesceReorderEventsFromSameSource(nsAccEvent*,nsAccEvent*) 	accessible/src/base/nsAccessibleEventData.cpp:425
2 	xul.dll 	nsAccEvent::ApplyEventRules(nsCOMArray<nsIAccessibleEvent>&) 	accessible/src/base/nsAccessibleEventData.cpp:322
3 	xul.dll 	nsDocAccessible::FlushPendingEvents() 	accessible/src/base/nsDocAccessible.cpp:1580
4 	xul.dll 	nsDocAccessible::FlushEventsCallback(nsITimer*,void*) 	accessible/src/base/nsDocAccessible.cpp:1755
5 	xul.dll 	nsTimerImpl::Fire() 	xpcom/threads/nsTimerImpl.cpp:420
6 	xul.dll 	nsTimerEvent::Run() 	xpcom/threads/nsTimerImpl.cpp:512
7 	xul.dll 	nsThread::ProcessNextEvent(int,int*) 	xpcom/threads/nsThread.cpp:510
8 	xul.dll 	NS_ProcessNextEvent_P(nsIThread*,int) 	obj-firefox/xpcom/build/nsThreadUtils.cpp:227
9 	xul.dll 	xul.dll@0x359dd9 	
10 	xul.dll 	NS_InvokeByIndex_P 	xpcom/reflect/xptcall/src/md/win32/xptcinvoke.cpp:101
11 	xul.dll 	XPCWrappedNative::CallMethod(XPCCallContext&,XPCWrappedNative::CallMode) 	js/src/xpconnect/src/xpcwrappednative.cpp:2454

Comment 2

[alexander :surkov (:asurkov)]

Might be duplicate of bug 468659.

Comment 3

[David Bolter [:davidb] (NeedInfo me for attention)]

Yeah it seems to be a failure to get the accessibility service. Any stacks lately to prove us wrong?

Comment 4

[David Bolter [:davidb] (NeedInfo me for attention)]

This hasn't shown up lately.