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Issue 888134 link

Starred by 2 users
Status: Fixed
Owner:
weiliangc@chromium.org
Closed: Sep 24
Cc:
█ kbr@chromium.org
geoffl...@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug



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Flaky GPU tests: GPU Windows 10 Debug+Release NVIDIA

Project Member Reported by weiliangc@chromium.org, Sep 21 
Builders:
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Win10%20Debug%20%28NVIDIA%29?limit=200
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Win10%20Release%20%28NVIDIA%29?limit=200

Failure test lists:
screenshot_sync_tests on NVIDIA GPU on Windows on Windows-10 Run on OS: 'Windows-10'
* gpu_tests.screenshot_sync_integration_test.ScreenshotSyncIntegrationTest.ScreenshotSync_GPURasterWithCanvas
* gpu_tests.screenshot_sync_integration_test.ScreenshotSyncIntegrationTest.ScreenshotSync_GPURasterWithDivs
* gpu_tests.screenshot_sync_integration_test.ScreenshotSyncIntegrationTest.ScreenshotSync_SWRasterWithCanvas
* gpu_tests.screenshot_sync_integration_test.ScreenshotSyncIntegrationTest.ScreenshotSync_SWRasterWithDivs

pixel_test on NVIDIA GPU on Windows on Windows-10 Run on OS: 'Windows-10'

Unexpected Failures:
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_2DCanvasWebGL
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_BackgroundImage
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_CSS3DBlueBox
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_Canvas2DRedBox
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_Canvas2DUntagged
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_CanvasDisplayLinearRGBAccelerated2D
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_CanvasDisplayLinearRGBUnaccelerated2DGPUCompositing
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_CanvasLowLatency2D
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_CanvasLowLatencyWebGL
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_DirectComposition_ComplexOverlays
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_DirectComposition_Nonroot
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_DirectComposition_Underlay
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_GpuRasterization_BlueBox
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_GpuRasterization_ConcavePaths
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_OffscreenCanvas2DResizeOnWorker
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_OffscreenCanvasTransferAfterStyleResize
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_OffscreenCanvasTransferBeforeStyleResize
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_OffscreenCanvasTransferToImageBitmap
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_OffscreenCanvasTransferToImageBitmapWorker
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_OffscreenCanvasWebGLDefault
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_OffscreenCanvasWebGLDefaultWorker
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_OffscreenCanvasWebGLPaintAfterResize
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_OffscreenCanvasWebglResizeOnWorker
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_ScissorTestWithPreserveDrawingBuffer
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_SolidColorBackground
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_WebGL2_BlitFramebuffer_Result_Displayed
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_WebGL2_ClearBufferfv_Result_Displayed
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_WebGLGreenTriangle_AA_Alpha
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_WebGLGreenTriangle_AA_NoAlpha
* gpu_tests.pixel_integration_test.PixelIntegrationTest.Pixel_WebGLGreenTriangle_NoAA_Alpha
* ... 3 more (33 total) ...

Comment 1 by kbr@chromium.org, Sep 21 

When the tests fail, all of the tests are failing.

https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Win10%20Debug%20%28NVIDIA%29/7692
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Win10%20Debug%20%28NVIDIA%29/7685
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Win10%20Debug%20%28NVIDIA%29/7679
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Win10%20Debug%20%28NVIDIA%29/7664

Looking at the failing shards, it looks to me like two bots have broken KVM connections.

https://chromium-swarm.appspot.com/bot?id=build85-m4&sort_stats=total%3Adesc
https://chromium-swarm.appspot.com/bot?id=build89-m4&sort_stats=total%3Adesc

I've clicked the "shut down gracefully" and filed Issue 888140 about having them inspected.

This failure mode looks different: the browser failed to start. It didn't happen again on that bot and there was no minidump so I'm not sure how to make progress on it.

https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Win10%20Debug%20%28NVIDIA%29/7667

(Linking to the failing builds and doing this follow-up is the standard operating procedure. If https://chromium.googlesource.com/chromium/src/+/master/docs/gpu/pixel_wrangling.md should be updated, please suggest changes to it. Thanks!)

Comment 2 by weiliangc@chromium.org, Sep 24

Status: Fixed (was: Assigned)
The lab bug has been fixed and hasn't seen more flakes over the weekend, marking fixed.

Comment 3 by est...@chromium.org, Sep 26 

 Issue 887202  has been merged into this issue.

Comment 4 by est...@chromium.org, Sep 26 

 Issue 887203  has been merged into this issue.
►

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