312903 2026-04-21 09:12:54 -0700 REGRESSION(302256@main): [Tahoe] TestWebKitAPI.WebKitLegacy.IsNavigationActionTrusted is a flaky CRASH 2026-04-23 11:14:07 -0700 1 1 1 Unclassified WebKit WebKit API WebKit Nightly Build Unspecified Unspecified NEW InRadar P2 Normal --- 1 rackler rackler jbedard webkit-bot-watchers-bugzilla webkit-bug-importer yijia_huang oldest_to_newest 2202771 0 rackler 2026-04-21 09:12:54 -0700 Description: TestWebKitAPI.WebKitLegacy.IsNavigationActionTrusted is a flaky CRASH on mac Tahoe Debug Regression = https://commits.webkit.org/compare/302255@main...302256@main This issue can be bisected to 302256@main using the command: run-api-tests --no-build TestWebKitAPI.WebKitLegacy.IsNavigationActionTrusted ------------- BISECTION AUDIT TRAIL ------------- 301908@main, 9b69b5c0d700 --> Passed 302098@main, 52a11367f75d --> Passed 302187@main, 3fe300f248f3 --> Passed 302212@main, 0a3e9f018b73 --> Passed 302236@main, 9c4db04c6d43 --> Passed 302245@main, 499bd04b16d5 --> Passed 302251@main, b82e1a6452a2 --> Passed 302253@main, b6c95d8926c1 --> Passed 302255@main, ec36c242bdff --> Passed 302256@main, ec36c242bdff --> CRASH 302559@main, a9b314dc9b8b --> CRASH 303173@main, 4563dd18bbd7 --> CRASH 303184@main, 837ec25d19ea --> CRASH 304514@main, 06dac8476dd8 --> CRASH 304606@main, f8b2fc6d3b89 --> CRASH 306270@main, e74549085e7d --> CRASH 306855@main, 5ba368beb476 --> CRASH 307688@main, 0758ca716825 --> CRASH 308955@main, 76c33ceda510 --> CRASH 310268@main, 80ff50d0abd0 --> CRASH 311638@main, 0da44e0e68a6 --> CRASH ------------- BISECTION AUDIT TRAIL END ------------- History: https://results.webkit.org/?version_name=Tahoe&suite=api-tests&test=TestWebKitAPI.WebKitLegacy.IsNavigationActionTrusted Crash Log: ASSERTION FAILED: osVersionSupports(os_script_config_storage) /System/Volumes/Data/otmp/case-sensitive/od.luxon/lw.luxon/sandbox-0/workspace/OpenSource/Source/JavaScriptCore/llint/LLIntData.cpp(129) : void JSC::LLInt::initialize() 1 0x117d72c08 JSC::LLInt::initialize() 2 0x11a26c1bc JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0::operator()() const 3 0x11a26c0bc std::__1::__invoke_result_impl<void, JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0>::type std::__1::__invoke[abi:sqn210106]<JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0>(JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0&&) 4 0x11a26c094 void std::__1::__call_once_param<std::__1::tuple<JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0&&>>::__execute[abi:sqn210106]<>(std::__1::__tuple_indices<>) 5 0x11a26c064 std::__1::__call_once_param<std::__1::tuple<JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0&&>>::operator()[abi:sqn210106]() 6 0x11a26bf54 void std::__1::__call_once_proxy[abi:sqn210106]<std::__1::tuple<JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0&&>>(void*) 7 0x1908344e4 std::__1::__call_once(unsigned long volatile&, void*, void (*)(void*)) 8 0x11a22fa38 void std::__1::call_once[abi:sqn210106]<JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0>(std::__1::once_flag&, JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0&&) 9 0x11a22f9c0 JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&) 10 0x11a22f968 void JSC::initialize<JSC::initialize()::$_0>(JSC::initialize()::$_0 const&) 11 0x11a22f920 JSC::initialize() 12 0x1285685ac WebCore::initializeMainThreadWebCore() 13 0x128568590 WebCore::initializeMainThreadIfNeeded() 14 0x107fad964 +[WebView initialize] 15 0x1904ceb9c CALLING_SOME_+initialize_METHOD 16 0x1904ce844 initializeNonMetaClass 17 0x1904ea0ac initializeAndMaybeRelock(objc_class*, objc_object*, locker_mixin<lockdebug::lock_mixin<objc_lock_base_t>>&, bool) 18 0x1904cdf8c lookUpImpOrForward 19 0x1904cdb84 _objc_msgSend_uncached 20 0x190504a54 objc_alloc_init 21 0x1034b17c4 TestWebKitAPI::WebKitLegacy_IsNavigationActionTrusted_Test::TestBody() 22 0x103b8089c void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) 23 0x103b37b2c void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) 24 0x103b37a68 testing::Test::Run() 25 0x103b38b88 testing::TestInfo::Run() 26 0x103b39e84 testing::TestSuite::Run() 27 0x103b482a0 testing::internal::UnitTestImpl::RunAllTests() 28 0x103b8595c bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) 29 0x103b47be0 bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) 30 0x103b47ad0 testing::UnitTest::Run() 31 0x103afba04 RUN_ALL_TESTS() Test Run: https://build.webkit.org/#/builders/1692/builds/3072 2202772 1 webkit-bug-importer 2026-04-21 09:15:23 -0700 <rdar://problem/175258056> 2202825 2 rackler 2026-04-21 10:26:13 -0700 Test gardening pull request: https://github.com/WebKit/WebKit/pull/63241 2202827 3 ews-feeder 2026-04-21 10:28:35 -0700 Test gardening commit 311701@main (3819a6d06a09): <https://commits.webkit.org/311701@main> Reviewed commits have been landed. Closing PR #63241 and removing active labels. 2203766 4 rackler 2026-04-23 11:01:38 -0700 I had to retry bisection due to an error in the original reproduction setup; disregard the crash assertion above, it was because of that. I have had to rely on the results database mostly for bisection. 2203769 5 jbedard 2026-04-23 11:08:04 -0700 I believe this was 311244@main, which was reverted in 311280@main and then re-landed in 311330@main 2203772 6 jbedard 2026-04-23 11:11:20 -0700 Recent run from CI: https://s3-us-west-2.amazonaws.com/archives.webkit.org/mac-tahoe-x86_64-arm64-debug-run-api-tests/311687@main-1391.txt We don't have a crash log, though. However this test is "crashing", it doesn't actually generate a crash-log. It also looks to be a flakey crash, I'm suspicious of timing issues (possibly about test parallelism?) 2203776 7 jbedard 2026-04-23 11:14:07 -0700 Note that the crashlog Karl has here isn't actually from this test. We still haven't been able to extract a real crashlog.