[Webkit-unassigned] [Bug 196190] [Coordinated Graphics][WinCairo] ASSERTION FAILED: state.id == m_nicosia.state.id

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=196190

--- Comment #2 from Fujii Hironori <Hironori.Fujii at sony.com> ---
This assertion assumes two scenes are identical in the composting thread in CoordinatedGraphicsScene::purgeGLResources.

However, state.id is incremented in the main thread in CompositingCoordinator::flushPendingLayerChanges.
https://trac.webkit.org/browser/webkit/trunk/Source/WebKit/WebProcess/WebPage/CoordinatedGraphics/CompositingCoordinator.cpp?rev=243163#L157

The reason why GTK port doesn't have this issue is RunLoop::TimerBase::stop in GTK port stop the RunLoop timer synchronously.
If the RunLoop timer is firing, RunLoop::TimerBase::stop blocks until it finishes.
This is the same reason why GTK port doesn't occur Bug 195550.

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