[Webkit-unassigned] [Bug 103714] New: [CoordinatedGraphics] Crash in TextureMapperLayer::setBackingStore()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=103714

           Summary: [CoordinatedGraphics] Crash in
                    TextureMapperLayer::setBackingStore()
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit2
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: christophe.dumez at intel.com


I sometimes get a crash in TextureMapperLayer::setBackingStore() when running the compositing layout tests. It is not very easy to reproduce but I basically do the following:
Tools/Scripts/run-webkit-tests --debug --efl -2 --repeat-each=5 compositing

I'm not quite sure what the source of the issue is yet. Sadly, I'm busy with something else at the moment so I'm filing a bug in hope someone has some time to investigate this issue before I do.

The backtrace looks like:
crash log for WebKitTestRunner (pid 19564):
STDOUT: <empty>
STDERR: 1   0x7f03ab762b67
STDERR: 2   0x7f03a3cd6cb0
STDERR: 3   0x4215a2 WTF::RefCountedBase::derefBase()
STDERR: 4   0x7f03a7f988d4 WTF::RefCounted<WebCore::TextureMapperBackingStore>::deref()
STDERR: 5   0x7f03a7f98308 void WTF::derefIfNotNull<WebCore::TextureMapperBackingStore>(WebCore::TextureMapperBackingStore*)
STDERR: 6   0x7f03a896f5a2 WTF::RefPtr<WebCore::TextureMapperBackingStore>::operator=(WTF::PassRefPtr<WebCore::TextureMapperBackingStore> const&)
STDERR: 7   0x7f03a896f290 WebCore::TextureMapperLayer::setBackingStore(WTF::PassRefPtr<WebCore::TextureMapperBackingStore>)
STDERR: 8   0x7f03a4a5d6b9 WebKit::LayerTreeRenderer::commitPendingBackingStoreOperations()
STDERR: 9   0x7f03a4a5d7aa WebKit::LayerTreeRenderer::flushLayerChanges()
STDERR: 10  0x7f03a4a5a91c WTF::FunctionWrapper<void (WebKit::LayerTreeRenderer::*)()>::operator()(WebKit::LayerTreeRenderer*)
STDERR: 11  0x7f03a4a59f3c WTF::BoundFunctionImpl<WTF::FunctionWrapper<void (WebKit::LayerTreeRenderer::*)()>, void (WebKit::LayerTreeRenderer*)>::operator()()
STDERR: 12  0x7f03ab797472 WTF::Function<void ()>::operator()() const
STDERR: 13  0x7f03a4a5dabe WebKit::LayerTreeRenderer::syncRemoteContent()
STDERR: 14  0x7f03a4a5b243 WebKit::LayerTreeRenderer::paintToCurrentGLContext(WebCore::TransformationMatrix const&, float, WebCore::FloatRect const&, unsigned int)
STDERR: 15  0x7f03a4b8f236 EwkViewImpl::displayTimerFired(WebCore::Timer<EwkViewImpl>*)
STDERR: 16  0x7f03a4b96884 WebCore::Timer<EwkViewImpl>::fired()
STDERR: 17  0x7f03a7f0ab1e WebCore::ThreadTimers::sharedTimerFiredInternal()
STDERR: 18  0x7f03a7f0aa3f WebCore::ThreadTimers::sharedTimerFired()
STDERR: 19  0x7f03a891dd25
STDERR: 20  0x7f03abd0146e _ecore_timer_expired_call
STDERR: 21  0x7f03abd0163b _ecore_timer_expired_timers_call
STDERR: 22  0x7f03abcfe551
STDERR: 23  0x7f03abcfebe7 ecore_main_loop_begin
STDERR: 24  0x433a69 WTR::TestController::platformRunUntil(bool&, double)
STDERR: 25  0x41eb90 WTR::TestController::runUntil(bool&, WTR::TestController::TimeoutDuration)
STDERR: 26  0x41e0ad WTR::TestController::resetStateToConsistentValues()
STDERR: 27  0x425d06 WTR::TestInvocation::invoke()
STDERR: 28  0x41e8c8 WTR::TestController::runTest(char const*)
STDERR: 29  0x41ea01 WTR::TestController::runTestingServerLoop()
STDERR: 30  0x41ea9b WTR::TestController::run()
STDERR: 31  0x41c4b1 WTR::TestController::TestController(int, char const**)
STDERR: LEAK: 1 WebPageProxy
STDERR: LEAK: 1 WebContext
STDERR: LEAK: 4 WebCoreNode

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