[Webkit-unassigned] [Bug 266138] New: REGRESSION: [Win] ASSERTION FAILED: canSafelyBeUsed() under WebKit::RemoteImageBufferProxy::streamConnection

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=266138

            Bug ID: 266138
           Summary: REGRESSION: [Win] ASSERTION FAILED: canSafelyBeUsed()
                    under WebKit::RemoteImageBufferProxy::streamConnection
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit2
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com
                CC: kkinnunen at apple.com

Buildbot: builder WinCairo-64-bit-Debug-Tests build 21459 : 271753 at main
https://build.webkit.org/#/builders/727/builds/21459

Regressions: Unexpected crashes (2)
  fast/transforms/interleaved-2d-transforms-with-gpu-process.html [ Crash ]
  webgl/webgl-and-dom-in-gpup.html [ Crash ]

stderr:

ASSERTION FAILED: canSafelyBeUsed()
C:\BW\WinCairo-64-bit-Debug-Build\build\WebKitBuild\Debug\WTF\Headers\wtf/WeakPtr.h(193) : operator->
1   00007FF8F5DE1B99 WTFCrash
2   00007FF8EA691C6D WTFCrashWithInfo
3   00007FF8EBB6E03D WTF::WeakPtr<WebKit::RemoteRenderingBackendProxy,WTF::DefaultWeakPtrImpl>::operator->
4   00007FF8EBB6633F WebKit::RemoteImageBufferProxy::streamConnection
5   00007FF8EBB661EB WebKit::RemoteImageBufferProxy::ensureBackend
6   00007FF8E3C34899 WebCore::ImageBuffer::createFlusher
7   00007FF8EA78BA20 WebKit::DrawingAreaWC::sendUpdateNonAC::<lambda_1>::operator()
8   00007FF8EA78B987 WTF::Detail::CallableWrapper<`lambda at C:\BW\WinCairo-64-bit-Debug-Build\build\Source\WebKit\WebProcess\WebPage\wc\DrawingAreaWC.cpp:371:29',void>::call
9   00007FF8F5DF7E04 WTF::Function<void ()>::operator()
10  00007FF8F5F4CCB7 WTF::WorkQueueBase::dispatch::<lambda_2>::operator()
11  00007FF8F5F4CC57 WTF::Detail::CallableWrapper<`lambda at C:\BW\WinCairo-64-bit-Debug-Build\build\Source\WTF\wtf\generic\WorkQueueGeneric.cpp:67:25',void>::call
12  00007FF8F5DF7E04 WTF::Function<void ()>::operator()
13  00007FF8F5E7AC1A WTF::RunLoop::performWork
14  00007FF8F5F56E80 WTF::RunLoop::wndProc
15  00007FF8F5F56DB7 WTF::RunLoop::RunLoopWndProc
16  00007FF904240089 CallWindowProcW
17  00007FF90423FA02 DispatchMessageW
18  00007FF8F5F5704D WTF::RunLoop::run
19  00007FF8F5E7B344 WTF::RunLoop::create::<lambda_0>::operator()
20  00007FF8F5E7B2E7 WTF::Detail::CallableWrapper<`lambda at C:\BW\WinCairo-64-bit-Debug-Build\build\Source\WTF\wtf\RunLoop.cpp:111:32',void>::call
21  00007FF8F5DF7E04 WTF::Function<void ()>::operator()
22  00007FF8F5E8814B WTF::Thread::entryPoint
23  00007FF8F5F58CF3 WTF::wtfThreadEntryPoint
24  00007FF8FFBB6B4C recalloc
25  00007FF904EF4DE0 BaseThreadInitThunk
26  00007FF91541EC4B RtlUserThreadStart
ERROR: 000001BC763AC6F0 - [PID=10252] WebProcessProxy::didClose (web process crash)
C:\BW\WinCairo-64-bit-Debug-Build\build\Source\WebKit\UIProcess/WebProcessProxy.cpp(1095) : didClose
ERROR: 000001BC763AC6F0 - [PID=10252] WebProcessProxy::processDidTerminateOrFailedToLaunch: reason=Crash
C:\BW\WinCairo-64-bit-Debug-Build\build\Source\WebKit\UIProcess/WebProcessProxy.cpp(1103) : processDidTerminateOrFailedToLaunch
ERROR: 000001BC78EA4730 - [pageProxyID=1307, webPageID=1308, PID=10252] WebPageProxy::processDidTerminate: (pid 10252), reason=Crash
C:\BW\WinCairo-64-bit-Debug-Build\build\Source\WebKit\UIProcess/WebPageProxy.cpp(9184) : resetStateAfterProcessTermination
ERROR: 000001BC78EA4730 - [pageProxyID=1307, webPageID=1308, PID=10252] WebPageProxy::dispatchProcessDidTerminate: reason=Crash
C:\BW\WinCairo-64-bit-Debug-Build\build\Source\WebKit\UIProcess/WebPageProxy.cpp(9242) : dispatchProcessDidTerminate
WebProcess terminated (pid 10252) for reason: crash
#CRASHED - WebProcess (pid 10252)


271732 at main good
271753 at main bad

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