webrtc/datachannel/datachannel-page-cache-send.html Is a flaky time out on BigSur wk1. History: https://results.webkit.org/?suite=layout-tests&test=webrtc%2Fdatachannel%2Fdatachannel-page-cache-send.html Result page: https://build.webkit.org/results/Apple-BigSur-Debug-WK1-Tests/r282143%20(4042)/results.html Diff: --- /Volumes/Data/worker/bigsur-debug-tests-wk1/build/layout-test-results/webrtc/datachannel/datachannel-page-cache-send-expected.txt +++ /Volumes/Data/worker/bigsur-debug-tests-wk1/build/layout-test-results/webrtc/datachannel/datachannel-page-cache-send-actual.txt @@ -1,3 +1,2 @@ +FAIL: Timed out waiting for notifyDone to be called -PASS datachannel-page-cache-send - Stderr: 2021-09-08 09:41:46.105 DumpRenderTree[84823:106479204] nil host used in call to allowsSpecificHTTPSCertificateForHost 2021-09-08 09:41:46.105 DumpRenderTree[84823:106479204] nil host used in call to allowsAnyHTTPSCertificateForHost: 2021-09-08 09:41:46.112 DumpRenderTree[84823:106479204] nil host used in call to allowsSpecificHTTPSCertificateForHost 2021-09-08 09:41:46.112 DumpRenderTree[84823:106479204] nil host used in call to allowsAnyHTTPSCertificateForHost: 2021-09-08 09:41:46.113 DumpRenderTree[84823:106479204] nil host used in call to allowsSpecificHTTPSCertificateForHost 2021-09-08 09:41:46.113 DumpRenderTree[84823:106479204] nil host used in call to allowsAnyHTTPSCertificateForHost: (sdp_offer_answer.cc:2293): AddIceCandidate: ICE candidates can't be added without any remote session description. 2021-09-08 09:41:46.231 DumpRenderTree[84823:106479204] nil host used in call to allowsSpecificHTTPSCertificateForHost 2021-09-08 09:41:46.231 DumpRenderTree[84823:106479204] nil host used in call to allowsAnyHTTPSCertificateForHost: (sdp_offer_answer.cc:2293): AddIceCandidate: ICE candidates can't be added without any remote session description.
<rdar://problem/82880473>
It looks like the flaky timeout started at around r281981
I was not able to find out the regression point because I was not able to reproduce the timeout using: run-webkit-test iterations 50 --exit-after-n-failures 1 webrtc/datachannel/datachannel-page-cache-send.html -1 It looks like the test passed without actually running. Tried TOT, r281981, r281980, r281977, r281690, but got the same result. stdio: Using port 'mac-bigsur' Test configuration: <bigsur, x86_64, release> Placing test results in /Volumes/Data/Builds/GoldenGate/test-281690/layout-test-results Using Release build Pixel tests disabled Regular timeout: 30000, slow test timeout: 150000 Command line: /Volumes/Data/Builds/GoldenGate/test-281690/DumpRenderTree - Found 1 test; running 1, skipping 0. Verbose baseline search path: platform/mac-bigsur-wk1 -> platform/mac-bigsur -> platform/mac-wk1 -> platform/mac -> generic Baseline search path: platform/mac-bigsur-wk1 -> platform/mac-bigsur -> platform/mac-wk1 -> platform/mac -> generic Running 1 test Running 1 DumpRenderTree. The test ran as expected. stderr: 2021-09-08 10:55:32.664 DumpRenderTree[9863:1153595] nil host used in call to allowsSpecificHTTPSCertificateForHost 2021-09-08 10:55:32.664 DumpRenderTree[9863:1153595] nil host used in call to allowsAnyHTTPSCertificateForHost: 2021-09-08 10:55:32.670 DumpRenderTree[9863:1153595] nil host used in call to allowsSpecificHTTPSCertificateForHost 2021-09-08 10:55:32.670 DumpRenderTree[9863:1153595] nil host used in call to allowsAnyHTTPSCertificateForHost: 2021-09-08 10:55:32.671 DumpRenderTree[9863:1153595] nil host used in call to allowsSpecificHTTPSCertificateForHost 2021-09-08 10:55:32.671 DumpRenderTree[9863:1153595] nil host used in call to allowsAnyHTTPSCertificateForHost: 2021-09-08 10:55:32.689 DumpRenderTree[9863:1153595] nil host used in call to allowsSpecificHTTPSCertificateForHost 2021-09-08 10:55:32.689 DumpRenderTree[9863:1153595] nil host used in call to allowsAnyHTTPSCertificateForHost: (stun_port.cc:308): Port[c020800:0:1:0:local:Net[en0:192.168.0.x/24:Unknown:id=1]]: UDP send of 100 bytes to host 192.168.0.x:59117 (192.168.0.x:59117) failed with error 1
Marked test expectations https://trac.webkit.org/changeset/282159/webkit
This test is constantly passing now. Verified issue resolved.