Bug 206275

Summary:	REGRESSION: http/tests/appcache/main-resource-redirect-with-sw.html is a flakey crash
Product:	WebKit	Reporter:	David Kilzer (:ddkilzer) <ddkilzer>
Component:	Service Workers	Assignee:	youenn fablet <youennf>
Status:	RESOLVED DUPLICATE
Severity:	Normal	CC:	aakash_jain, ap, cdumez, jlewis3, tsavell, webkit-bot-watchers-bugzilla, webkit-bug-importer, youennf
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description David Kilzer (:ddkilzer) 2020-01-14 21:13:40 PST

http/tests/appcache/main-resource-redirect-with-sw.html is a flakey crash, mostly on iOS Simulator.

Flakiness dashboard:  <https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Ftests%2Fappcache%2Fmain-resource-redirect-with-sw.html>

This flakey crash was also seen on the first run for the ios-wk2 test bot for Bug 205368 Attachment #387728 [details]:
Run:  <https://ews-build.webkit.org/#/builders/24/builds/8501>
Results:  <https://ews-build.webkit.org/results/iOS-13-Simulator-WK2-Tests-EWS/r387728-8501/results.html>

I couldn't find a crash log looking at recent crashes in test failures, though.

Comment 1 Radar WebKit Bug Importer 2020-01-14 21:14:04 PST

<rdar://problem/58594584>

Comment 2 Aakash Jain 2020-01-21 05:04:29 PST

This test flaked in https://ews-build.webkit.org/#/builders/24/builds/8900 as well, crashed in layout-tests step, while in subsequent re-run-layout-tests step it passed. Unnecessarily slowing down that ews build.

Comment 3 Aakash Jain 2020-01-21 05:06:46 PST

Results database: https://results.webkit.org/?suite=layout-tests&test=http%2Ftests%2Fappcache%2Fmain-resource-redirect-with-sw.html&platform=ios


From https://build.webkit.org/builders/Apple%20iPadOS%2013%20Simulator%20Debug%20WK2%20%28Tests%29/builds/1083/steps/layout-test/logs/stdio
11:45:47.590 82963 worker/6 http/tests/appcache/main-resource-redirect-with-sw.html crashed, (no stderr)
11:45:47.592 81141 [21332/48124] http/tests/appcache/main-resource-redirect-with-sw.html failed unexpectedly (ServiceWorkerProcess crashed [pid=87508])

Comment 4 Aakash Jain 2020-01-21 05:20:44 PST

This test was added in https://trac.webkit.org/changeset/229086/webkit

Comment 5 Aakash Jain 2020-01-22 10:47:09 PST

Recently flaked in following builds (crashed in layout-tests step, while in subsequent re-run-layout-tests step it passed):

https://ews-build.webkit.org/#/builders/24/builds/9004
https://ews-build.webkit.org/#/builders/24/builds/9001
https://ews-build.webkit.org/#/builders/24/builds/8986

Comment 6 Alexey Proskuryakov 2020-01-22 14:15:37 PST

Looking at results from a single run, I see a lot of ServiceWorker test crashes: https://build.webkit.org/results/Apple%20iPadOS%2013%20Simulator%20Debug%20WK2%20(Tests)/r254829%20(1083)/results.html

None of them have crash logs or anything interesting in stdio.

Youenn, which is the master bug fo tracking these?

Comment 7 Alexey Proskuryakov 2020-01-23 09:19:36 PST


*** This bug has been marked as a duplicate of bug 206396 ***