[Webkit-unassigned] [Bug 211190] New: REGRESSION: [ iOS ] http/tests/resourceLoadStatistics/standalone-web-application-exempt-from-website-data-deletion tests are flaky crashing, failing an timing out.

Wed Apr 29 10:05:15 PDT 2020

https://bugs.webkit.org/show_bug.cgi?id=211190

            Bug ID: 211190
           Summary: REGRESSION: [ iOS ]
                    http/tests/resourceLoadStatistics/standalone-web-appli
                    cation-exempt-from-website-data-deletion tests are
                    flaky crashing, failing an timing out.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: iPhone / iPad
                OS: iOS 13
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Lawrence.j at apple.com

http/tests/resourceLoadStatistics/standalone-web-application-exempt-from-website-data-deletion-database.html 
http/tests/resourceLoadStatistics/standalone-web-application-exempt-from-website-data-deletion.html

Description:
These tests are flaky crashing on iOS wk2 Debug. They are flaky timing out also, primarily on Release. The first, with database in the URL, is also flaky failing on Release. The flaky timeouts are apparent throughout the visible history. The flaky crashes and failures appear to have started on 04/27/2020.

History:
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&test=http%2Ftests%2FresourceLoadStatistics%2Fstandalone-web-application-exempt-from-website-data-deletion-database.html&test=http%2Ftests%2FresourceLoadStatistics%2Fstandalone-web-application-exempt-from-website-data-deletion.html&platform=ios&limit=50000

Crash log:
No crash log found for com.apple.WebKit.Networking.Development:50857.

stdout:

stderr:
MRMediaRemoteSetNowPlayingApplicationPlaybackStateForOrigin(stopped) failed with error 3
ERROR: SQLite database failed to set journal_mode to WAL, error: database is locked
./platform/sql/SQLiteDatabase.cpp(175) : void WebCore::SQLiteDatabase::useWALJournalMode()
ERROR: SQLite database failed to checkpoint: database is locked
./platform/sql/SQLiteDatabase.cpp(185) : void WebCore::SQLiteDatabase::useWALJournalMode()
ERROR: Unable to prepare statement to fetch schema for the ObservedDomains table.
/Volumes/Data/slave/ios-simulator-13-debug/build/Source/WebKit/NetworkProcess/Classifier/ResourceLoadStatisticsDatabaseStore.cpp(507) : void WebKit::ResourceLoadStatisticsDatabaseStore::openAndUpdateSchemaIfNecessary()
SHOULD NEVER BE REACHED
/Volumes/Data/slave/ios-simulator-13-debug/build/Source/WebKit/NetworkProcess/Classifier/ResourceLoadStatisticsDatabaseStore.cpp(508) : void WebKit::ResourceLoadStatisticsDatabaseStore::openAndUpdateSchemaIfNecessary()
1   0x11ca85f99 WTFCrash
2   0x109ac1ccb WTFCrashWithInfo(int, char const*, char const*, int)
3   0x10a1d5ddf WebKit::ResourceLoadStatisticsDatabaseStore::openAndUpdateSchemaIfNecessary()
4   0x10a1d5966 WebKit::ResourceLoadStatisticsDatabaseStore::ResourceLoadStatisticsDatabaseStore(WebKit::WebResourceLoadStatisticsStore&, WTF::WorkQueue&, WebKit::ShouldIncludeLocalhost, WTF::String const&, PAL::SessionID)
5   0x10a1d6863 WebKit::ResourceLoadStatisticsDatabaseStore::ResourceLoadStatisticsDatabaseStore(WebKit::WebResourceLoadStatisticsStore&, WTF::WorkQueue&, WebKit::ShouldIncludeLocalhost, WTF::String const&, PAL::SessionID)
6   0x10a27340c std::__1::__unique_if<WebKit::ResourceLoadStatisticsDatabaseStore>::__unique_single std::__1::make_unique<WebKit::ResourceLoadStatisticsDatabaseStore, WebKit::WebResourceLoadStatisticsStore&, WTF::Ref<WTF::WorkQueue, WTF::DumbPtrTraits<WTF::WorkQueue> >&, WebKit::ShouldIncludeLocalhost const&, WTF::String const&, PAL::SessionID const&>(WebKit::WebResourceLoadStatisticsStore&, WTF::Ref<WTF::WorkQueue, WTF::DumbPtrTraits<WTF::WorkQueue> >&, WebKit::ShouldIncludeLocalhost const&, WTF::String const&, PAL::SessionID const&)
7   0x10a272ff3 decltype(auto) WTF::makeUnique<WebKit::ResourceLoadStatisticsDatabaseStore, WebKit::WebResourceLoadStatisticsStore&, WTF::Ref<WTF::WorkQueue, WTF::DumbPtrTraits<WTF::WorkQueue> >&, WebKit::ShouldIncludeLocalhost const&, WTF::String const&, PAL::SessionID const&>(WebKit::WebResourceLoadStatisticsStore&, WTF::Ref<WTF::WorkQueue, WTF::DumbPtrTraits<WTF::WorkQueue> >&, WebKit::ShouldIncludeLocalhost const&, WTF::String const&, PAL::SessionID const&)
8   0x10a272d46 WebKit::WebResourceLoadStatisticsStore::WebResourceLoadStatisticsStore(WebKit::NetworkSession&, WTF::String const&, WebKit::ShouldIncludeLocalhost, WebCore::ResourceLoadStatistics::IsEphemeral)::$_42::operator()() const
9   0x10a272bfe WTF::Detail::CallableWrapper<WebKit::WebResourceLoadStatisticsStore::WebResourceLoadStatisticsStore(WebKit::NetworkSession&, WTF::String const&, WebKit::ShouldIncludeLocalhost, WebCore::ResourceLoadStatistics::IsEphemeral)::$_42, void>::call()
10  0x109ba54c2 WTF::Function<void ()>::operator()() const
11  0x10a2494ae WebKit::WebResourceLoadStatisticsStore::postTask(WTF::Function<void ()>&&)::'lambda'()::operator()() const
12  0x10a2493de WTF::Detail::CallableWrapper<WebKit::WebResourceLoadStatisticsStore::postTask(WTF::Function<void ()>&&)::'lambda'(), void>::call()
13  0x11cab0732 WTF::Function<void ()>::operator()() const
14  0x11cbbb00e WTF::WorkQueue::dispatch(WTF::Function<void ()>&&)::$_0::operator()() const
15  0x11cbbb202 WTF::BlockPtr<void ()> WTF::BlockPtr<void ()>::fromCallable<WTF::WorkQueue::dispatch(WTF::Function<void ()>&&)::$_0>(WTF::WorkQueue::dispatch(WTF::Function<void ()>&&)::$_0)::'lambda'(void*)::operator()(void*) const
16  0x11cbbb1d5 WTF::BlockPtr<void ()> WTF::BlockPtr<void ()>::fromCallable<WTF::WorkQueue::dispatch(WTF::Function<void ()>&&)::$_0>(WTF::WorkQueue::dispatch(WTF::Function<void ()>&&)::$_0)::'lambda'(void*)::__invoke(void*)
17  0x10971a951 _dispatch_call_block_and_release
18  0x10971b8cb _dispatch_client_callout
19  0x10972160c _dispatch_lane_serial_drain
20  0x109722044 _dispatch_lane_invoke
21  0x10972c0c4 _dispatch_workloop_worker_thread
22  0x115fcaa3d _pthread_wqthread
23  0x115fc9b77 start_wqthread


Diff:

--- /Volumes/Data/slave/ipados-simulator-13-release-tests-wk2/build/layout-test-results/http/tests/resourceLoadStatistics/standalone-web-application-exempt-from-website-data-deletion-database-expected.txt
+++ /Volumes/Data/slave/ipados-simulator-13-release-tests-wk2/build/layout-test-results/http/tests/resourceLoadStatistics/standalone-web-application-exempt-from-website-data-deletion-database-actual.txt
@@ -1,5 +1,6 @@
 Check that non-cookie website data does not get removed after a period of no user interaction if the website is a standalone web application.

+FAIL: http://127.0.0.1:8000 didn't get classified as prevalent.
 Before deletion: Client-side cookie exists.
 Before deletion: HttpOnly cookie exists.
 Before deletion: Regular server-side cookie exists.

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