(In reply to Sotaro Ikeda [:sotaro] from comment #8) > SurfaceFactory creation and destruction happened very often. It might be related to the problem. It happened since WebRenderCanvasData was destroyed very often in WebRenderCommandBuilder::BuildWebRenderCommands() by mLastCanvasDatas.Clear(); https://searchfox.org/mozilla-central/source/gfx/layers/wr/WebRenderCommandBuilder.cpp#1542
Bug 1555544 Comment 9 Edit History
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(In reply to Sotaro Ikeda [:sotaro] from comment #8) > SurfaceFactory creation and destruction happened very often. It might be related to the problem. It happened since WebRenderCanvasData was destroyed very often in WebRenderCommandBuilder::BuildWebRenderCommands() by mLastCanvasDatas.Clear(); https://searchfox.org/mozilla-central/source/gfx/layers/wr/WebRenderCommandBuilder.cpp#1542 It did not happen during normal WebGL usage.
(In reply to Sotaro Ikeda [:sotaro] from comment #8) > SurfaceFactory creation and destruction happened very often. It might be related to the problem. It happened since WebRenderCanvasData was destroyed/created very often in WebRenderCommandBuilder::BuildWebRenderCommands() by mLastCanvasDatas.Clear(); https://searchfox.org/mozilla-central/source/gfx/layers/wr/WebRenderCommandBuilder.cpp#1542 It did not happen during normal WebGL usage.