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Linux_android_emu_vulkan_stable android_hardware_smoke_vulkan_instrumented_tests is 3.03% flaky #193205
Description
The post-submit test builder Linux_android_emu_vulkan_stable android_hardware_smoke_vulkan_instrumented_tests had a flaky ratio 3.03% for the past (up to) 100 commits, which is above our 2.00% threshold.
One recent flaky example for a same commit: https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android_emu_vulkan_stable%20android_hardware_smoke_vulkan_instrumented_tests/240
Commit: e847cfe
Flaky builds:
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android_emu_vulkan_stable%20android_hardware_smoke_vulkan_instrumented_tests/240
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android_emu_vulkan_stable%20android_hardware_smoke_vulkan_instrumented_tests/231
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android_emu_vulkan_stable%20android_hardware_smoke_vulkan_instrumented_tests/221
Please follow https://github.com/flutter/flutter/blob/master/docs/infra/Reducing-Test-Flakiness.md#fixing-flaky-tests to fix the flakiness and enable the test back after validating the fix (internal dashboard to validate: go/flutter_test_flakiness).
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fluttergithubbot commentedon Sep 30, 2026
[prod pool] flaky ratio for the past (up to) 100 commits between 2026-09-23 and 2026-09-29 is 2.02%. Flaky number: 2; total number: 99.
One recent flaky example for a same commit: https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android_emu_vulkan_stable%20android_hardware_smoke_vulkan_instrumented_tests/397
Commit: c11ae55
Flaky builds:
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android_emu_vulkan_stable%20android_hardware_smoke_vulkan_instrumented_tests/397
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android_emu_vulkan_stable%20android_hardware_smoke_vulkan_instrumented_tests/385
Recent test runs:
https://flutter-dashboard.appspot.com/#/build?taskFilter=Linux_android_emu_vulkan_stable%20android_hardware_smoke_vulkan_instrumented_tests
andywolff commentedon Oct 5, 2026
Oh interesting. Unlike #193557, this is a different failure case: Only one test case failed, backdropFilterBlurTest. I fixed the same issue in google3, I just need to upstream my fix. It's a synchronization problem. If a platform view test case comes before a non platform view test case, the latter can take its screenshot before composition completes, resulting in a blank image. There's some additional synchronization to be added. I'll make a PR
fluttergithubbot commentedon Oct 7, 2026
[prod pool] flaky ratio for the past (up to) 100 commits between 2026-09-30 and 2026-10-06 is 0.00%. Flaky number: 0; total number: 99.
gaaclarke commentedon Oct 12, 2026
moving to p1 since the tests are suppresed
Fix android_hardware_smoke_test retry mechanisms (flutter#195708)
andywolff commentedon Nov 11, 2026
I've unsuppressed this after landing #195708, please open a new issue if we see further flakiness