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SyntheticKeyEventTest.KeyboardEventAck is flaky in single process mash content_browsertests |
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Issue descriptionFlaky test: SyntheticKeyEventTest.KeyboardEventAck Sample failed build due to flakiness: https://chromium-swarm.appspot.com/task?id=4033935132c46710 Test output log: https://ci.chromium.org/buildbot/chromium.chromiumos/linux-chromeos-rel/13926 Culprit (86.7% confidence): https://chromium-review.googlesource.com/q/Iece79fb9b96b48b8affb450cb44486c0b7ed00f0 Analysis: https://findit-for-me.appspot.com/waterfall/flake?key=ag9zfmZpbmRpdC1mb3ItbWVywQELEhdNYXN0ZXJGbGFrZUFuYWx5c2lzUm9vdCKKAWNocm9taXVtLmNocm9taXVtb3MvbGludXgtY2hyb21lb3MtcmVsLzEzOTI2L3NpbmdsZV9wcm9jZXNzX21hc2hfY29udGVudF9icm93c2VydGVzdHMvVTNsdWRHaGxkR2xqUzJWNVJYWmxiblJVWlhOMExrdGxlV0p2WVhKa1JYWmxiblJCWTJzPQwLEhNNYXN0ZXJGbGFrZUFuYWx5c2lzGAEM Please revert the culprit, or disable the test and find the appropriate owner. If the culprit above is wrong, please file a bug using this link: https://bugs.chromium.org/p/chromium/issues/entry?status=Unconfirmed&labels=Pri-1,Test-Findit-Wrong&components=Tools%3ETest%3EFindit%3EFlakiness&summary=%5BFindit%5D%20Flake%20Analyzer%20-%20Wrong%20result%20for%20SyntheticKeyEventTest.KeyboardEventAck&comment=Link%20to%20Analysis%3A%20https://findit-for-me.appspot.com/waterfall/flake?key=ag9zfmZpbmRpdC1mb3ItbWVywQELEhdNYXN0ZXJGbGFrZUFuYWx5c2lzUm9vdCKKAWNocm9taXVtLmNocm9taXVtb3MvbGludXgtY2hyb21lb3MtcmVsLzEzOTI2L3NpbmdsZV9wcm9jZXNzX21hc2hfY29udGVudF9icm93c2VydGVzdHMvVTNsdWRHaGxkR2xqUzJWNVJYWmxiblJVWlhOMExrdGxlV0p2WVhKa1JYWmxiblJCWTJzPQwLEhNNYXN0ZXJGbGFrZUFuYWx5c2lzGAEM
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Sep 27
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Sep 27
Looks like we have a dead lock when starting under single process mash mode. Investigating...
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Sep 27
emm, the dead lock is in the build 13926 link. All tests in that bot failed. It looks like something different. There is also a sample failed build link: https://chromium-swarm.appspot.com/task?id=4033935132c46710 that shows SyntheticKeyEventTest.KeyboardEventAck is flaky. Will black list that first.
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Sep 27
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Sep 27
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/d670d8b867975810309fa6e89410d53fe7d6d395 commit d670d8b867975810309fa6e89410d53fe7d6d395 Author: Xiyuan Xia <xiyuan@chromium.org> Date: Thu Sep 27 17:46:46 2018 Disable a test in single process mash content_browsertests Disabled due to flake: SyntheticKeyEventTest.KeyboardEventAck Bug: 889878 Change-Id: I3ced9177ffbc1edbcbb0381714b92b66b02b5b07 Reviewed-on: https://chromium-review.googlesource.com/1249821 Reviewed-by: James Cook <jamescook@chromium.org> Commit-Queue: Xiyuan Xia <xiyuan@chromium.org> Cr-Commit-Position: refs/heads/master@{#594773} [modify] https://crrev.com/d670d8b867975810309fa6e89410d53fe7d6d395/testing/buildbot/filters/chromeos.single_process_mash.content_browsertests.filter
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Sep 28
Triage nag: This Chrome OS bug has an owner but no component. Please add a component so that this can be tracked by the relevant team.
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Oct 2
Removing from sheriff queue as test has been disabled. Good luck with the fix!
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Nov 6
I see this flake when running the test locally with or without Mash. Flakiness dashboard shows it flaky pretty much everywhere: https://test-results.appspot.com/dashboards/flakiness_dashboard.html#testType=content_browsertests&tests=SyntheticKeyEventTest.KeyboardEventAck
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Nov 6
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Nov 6
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/ffa5af40ec74604b9f319ea0ac895d9a8b8e963c commit ffa5af40ec74604b9f319ea0ac895d9a8b8e963c Author: Evan Stade <estade@chromium.org> Date: Tue Nov 06 18:42:16 2018 Disable SyntheticKeyEventTest.KeyboardEventAck It's flaky everywhere, not just mash. TBR=caseq@chromium.org Bug: 889878 Change-Id: Iae5bdc6625102ad5dc59707a68f1f67db2a53dcd Reviewed-on: https://chromium-review.googlesource.com/c/1318801 Reviewed-by: Evan Stade <estade@chromium.org> Reviewed-by: Xiyuan Xia <xiyuan@chromium.org> Commit-Queue: Evan Stade <estade@chromium.org> Cr-Commit-Position: refs/heads/master@{#605755} [modify] https://crrev.com/ffa5af40ec74604b9f319ea0ac895d9a8b8e963c/content/browser/devtools/protocol/devtools_protocol_browsertest.cc [modify] https://crrev.com/ffa5af40ec74604b9f319ea0ac895d9a8b8e963c/testing/buildbot/filters/chromeos.single_process_mash.content_browsertests.filter
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Nov 15
As this if flakey everywhere I'm removing this as a blocker for mash.
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Nov 18
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Dec 3
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Comment 1 by est...@chromium.org
, Sep 27Status: Assigned (was: Untriaged)