Bug 230055 – [ BigSur wk1 ] webrtc/datachannel/datachannel-page-cache-send.html is a flaky timeout

• Status: NEW
• Component: WebRTC

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.

[Radar WebKit Bug Importer]

<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

[Ben Schwartz]

This test is constantly passing now. Verified issue resolved.