STR: current trunk on nexus 4 with debug build. Open FTU app and enable data. 2/2 reproducible Program received signal SIGSEGV, Segmentation fault. 0xb57efaf4 in AncestorFilter::AssertHasAllAncestors (this=0xbe870240, aElement=<optimized out>) at ../../../layout/style/nsCSSRuleProcessor.cpp:3620 3620 MOZ_ASSERT(mElements.Contains(cur)); (gdb) bt #0 0xb57efaf4 in AncestorFilter::AssertHasAllAncestors (this=0xbe870240, aElement=<optimized out>) at ../../../layout/style/nsCSSRuleProcessor.cpp:3620 #1 0xb57f2552 in RuleHash::EnumerateAllRules (this=0xb2fda9c0, aElement=0xb1de0a90, aData=0xbe86fcd4, aNodeContext=...) at ../../../layout/style/nsCSSRuleProcessor.cpp:770 #2 0xb57f34d4 in nsCSSRuleProcessor::RulesMatching (this=<optimized out>, aData=0xbe86fcd4) at ../../../layout/style/nsCSSRuleProcessor.cpp:2480 #3 0xb5859e1c in EnumRulesMatching<ElementRuleProcessorData> (aProcessor=<optimized out>, aData=<optimized out>) at ../../../layout/style/nsStyleSet.cpp:671 #4 0xb585c8bc in nsStyleSet::FileRules (this=0xb1d1e200, aCollectorFunc=0xb5859e15 <EnumRulesMatching<ElementRuleProcessorData>(nsIStyleRuleProcessor*, void*)>, aData=0xbe86fcd4, aElement=0xb1de0a90, aRuleWalker=0xbe86fcc8) at ../../../layout/style/nsStyleSet.cpp:977 #5 0xb585d21e in nsStyleSet::ResolveStyleFor (this=0xb1d1e200, aElement=0xb1de0a90, aParentContext=0xb1709718, aTreeMatchContext=...) at ../../../layout/style/nsStyleSet.cpp:1207 #6 0xb58910ce in mozilla::ElementRestyler::RestyleSelf (this=0xbe86fe44, aSelf=0xb0a46950, aRestyleHint=eRestyle_Subtree) at ../../../layout/base/RestyleManager.cpp:2463 #7 0xb58914f4 in mozilla::ElementRestyler::Restyle (this=0xbe86fe44, aRestyleHint=eRestyle_Subtree) at ../../../layout/base/RestyleManager.cpp:2307 #8 0xb5891c18 in mozilla::ElementRestyler::RestyleContentChildren (this=0xbe86ff8c, aParent=<optimized out>, aChildRestyleHint=eRestyle_Subtree) at ../../../layout/base/RestyleManager.cpp:2845 #9 0xb5891ce0 in mozilla::ElementRestyler::RestyleChildren (this=0xbe86ff8c, aChildRestyleHint=eRestyle_Subtree) at ../../../layout/base/RestyleManager.cpp:2578 #10 0xb5891510 in mozilla::ElementRestyler::Restyle (this=0xbe86ff8c, aRestyleHint=eRestyle_Subtree) at ../../../layout/base/RestyleManager.cpp:2311 #11 0xb5891be4 in mozilla::ElementRestyler::RestyleContentChildren (this=0xbe870098, aParent=<optimized out>, aChildRestyleHint=0) at ../../../layout/base/RestyleManager.cpp:2834 #12 0xb5891ce0 in mozilla::ElementRestyler::RestyleChildren (this=0xbe870098, aChildRestyleHint=0) at ../../../layout/base/RestyleManager.cpp:2578 #13 0xb5891510 in mozilla::ElementRestyler::Restyle (this=0xbe870098, aRestyleHint=eRestyle_Self) at ../../../layout/base/RestyleManager.cpp:2311 #14 0xb589165a in mozilla::RestyleManager::ComputeStyleChangeFor (this=0xb3017d60, aFrame=<optimized out>, aChangeList=0xbe87029c, aMinChange=0, aRestyleTracker=..., aRestyleDescendants=false) at ../../../layout/base/RestyleManager.cpp:2960 #15 0xb5891a7e in mozilla::RestyleManager::RestyleElement (this=0xb3017d60, aElement=0xb1a72660, aPrimaryFrame=0xb0a46208, aMinHint=0, aRestyleTracker=..., aRestyleDescendants=false) at ../../../layout/base/RestyleManager.cpp:867 #16 0xb5891e30 in mozilla::RestyleTracker::ProcessOneRestyle (this=0xb3017d88, aElement=0xb1a72660, aRestyleHint=eRestyle_Self, aChangeHint=0) ---Type <return> to continue, or q <return> to quit--- at ../../../layout/base/RestyleTracker.cpp:123 #17 0xb589249a in mozilla::RestyleTracker::DoProcessRestyles (this=0xb3017d88) at ../../../layout/base/RestyleTracker.cpp:206 #18 0xb58918e6 in ProcessRestyles (this=0xb3017d88) at ../../../layout/base/RestyleTracker.h:273 #19 mozilla::RestyleManager::ProcessPendingRestyles (this=0xb3017d60) at ../../../layout/base/RestyleManager.cpp:1443 #20 0xb587b2be in PresShell::FlushPendingNotifications (this=0xb2f72680, aFlush=...) at ../../../layout/base/nsPresShell.cpp:4152 #21 0xb58819ba in nsRefreshDriver::Tick (this=0xb3017f00, aNowEpoch=<optimized out>, aNowTime=...) at ../../../layout/base/nsRefreshDriver.cpp:1185 #22 0xb5882248 in mozilla::RefreshDriverTimer::Tick (this=0xb29af900) at ../../../layout/base/nsRefreshDriver.cpp:162 #23 0xb4a9b320 in nsTimerImpl::Fire (this=0xb29acf10) at ../../../xpcom/threads/nsTimerImpl.cpp:609 #24 0xb4a9b4a8 in nsTimerEvent::Run (this=0xb2345650) at ../../../xpcom/threads/nsTimerImpl.cpp:702 #25 0xb4a9889a in ProcessNextEvent (aResult=0xbe870db7, aMayWait=false, this=0xb3b47880) at ../../../xpcom/threads/nsThread.cpp:766 #26 nsThread::ProcessNextEvent (this=0xb3b47880, aMayWait=<optimized out>, aResult=0xbe870db7) at ../../../xpcom/threads/nsThread.cpp:685 #27 0xb4a4f794 in NS_ProcessNextEvent (thread=0xb3b47880, mayWait=<optimized out>) at ../../../xpcom/glue/nsThreadUtils.cpp:263 #28 0xb4c54dcc in mozilla::ipc::MessagePump::Run (this=0xb3b01b80, aDelegate=0xbe870f10) at ../../../ipc/glue/MessagePump.cpp:95 #29 0xb4c41bea in MessageLoop::RunInternal (this=0xbe870f10) at ../../../ipc/chromium/src/base/message_loop.cc:229 #30 0xb4c41c02 in RunHandler (this=0xbe870f10) at ../../../ipc/chromium/src/base/message_loop.cc:222 #31 MessageLoop::Run (this=0xbe870f10) at ../../../ipc/chromium/src/base/message_loop.cc:196 #32 0xb527a9fe in nsBaseAppShell::Run (this=0xb3bb9880) at ../../../widget/xpwidgets/nsBaseAppShell.cpp:164 #33 0xb5b551fa in XRE_RunAppShell () at ../../../toolkit/xre/nsEmbedFunctions.cpp:692 #34 0xb4c54ee2 in mozilla::ipc::MessagePumpForChildProcess::Run (this=0xb3b01b80, aDelegate=0xbe870f10) at ../../../ipc/glue/MessagePump.cpp:253 #35 0xb4c41bea in MessageLoop::RunInternal (this=0xbe870f10) at ../../../ipc/chromium/src/base/message_loop.cc:229 #36 0xb4c41c02 in RunHandler (this=0xbe870f10) at ../../../ipc/chromium/src/base/message_loop.cc:222 #37 MessageLoop::Run (this=0xbe870f10) at ../../../ipc/chromium/src/base/message_loop.cc:196 #38 0xb5b55166 in XRE_InitChildProcess (aArgc=5, aArgv=<optimized out>, aProcess=<optimized out>) at ../../../toolkit/xre/nsEmbedFunctions.cpp:529 #39 0x00008862 in main (argc=6, argv=0xbe871a04) at ../../../ipc/app/MozillaRuntimeMain.cpp:149 (gdb) p mElements $1 = {<nsTArray_Impl<mozilla::dom::Element*, nsTArrayInfallibleAllocator>> = {<nsTArray_base<nsTArrayInfallibleAllocator, nsTArray_CopyWithMemutils>> = { mHdr = 0xb0a48970}, <nsTArray_TypedBase<mozilla::dom::Element*, nsTArray_Impl<mozilla::dom::Element*, nsTArrayInfallibleAllocator> >> = {<nsTArray_SafeElementAtHelper<mozilla::dom::Element*, nsTArray_Impl<mozilla::dom::Element*, nsTArrayInfallibleAllocator> >> = {<No data fields>}, <No data fields>}, static NoIndex = <optimized out>}, <No data fields>} (gdb) p cur $2 = (nsINode *) 0xb1b53150 (gdb) p *cur $3 = {<mozilla::dom::EventTarget> = {<nsIDOMEventTarget> = {<nsISupports> = { _vptr.nsISupports = 0xb6c41cd8}, <No data fields>}, <nsWrapperCache> = {_vptr.nsWrapperCache = 0xb6c42134, mWrapper = {<js::HeapBase<JSObject*>> = {<No data fields>}, ptr = 0xb2a40d60}, mFlags = 2113799}, <No data fields>}, mNodeInfo = { mRawPtr = 0xb1b53100}, mParent = 0xb1dcb7c0, mBoolFlags = 100794398, mNextSibling = 0xb1b53290, mPreviousSibling = 0xb1b530b0, mFirstChild = 0xb1b531a0, {mPrimaryFrame = 0xb0a46140, mSubtreeRoot = 0xb0a46140}, mSlots = 0xb1701880}

Is this the same as bug 1017798? Same web components question as there...

Mass closing as we are no longer working on b2g/firefox os.

Mass closing as we are no longer working on b2g/firefox os.