299131 2025-09-18 15:26:50 -0700 REGRESSION(298805@main?): [macOS Release] inspector/unit-tests/target-manager.html is a flaky crash 2025-09-19 19:12:33 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=298402 InRadar P2 Normal --- 1 darbinyan webkit-unassigned webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 2144146 0 darbinyan 2025-09-18 15:26:50 -0700 The following test is flaky failure on several PRs in EWS. In post-commit it crashes intermittently with JSC::ShadowChicken error. inspector/unit-tests/target-manager.html Thread 10 Crashed:: Dispatch queue: 0 com.apple.JavaScriptCore 0x1069f2bb0 JSC::ShadowChicken::update(JSC::VM&, JSC::CallFrame*) (.cold.3) 1 com.apple.JavaScriptCore 0x105fea7fc JSC::ShadowChicken::update(JSC::VM&, JSC::CallFrame*) 2 com.apple.JavaScriptCore 0x10604deb0 JSC::genericUnwind(JSC::VM&, JSC::CallFrame*) 3 com.apple.JavaScriptCore 0x106156060 llint_slow_path_handle_exception 4 com.apple.JavaScriptCore 0x106a373ac llint_entry 5 com.apple.JavaScriptCore 0x106a228b4 vmEntryToJavaScript 6 com.apple.JavaScriptCore 0x105fe4178 JSC::Interpreter::executeProgram(JSC::SourceCode const&, JSC::JSGlobalObject*, JSC::JSObject*) 7 com.apple.JavaScriptCore 0x1062105a8 JSC::evaluate(JSC::JSGlobalObject*, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&) 8 com.apple.WebCore 0x12107d810 WebCore::WorkerOrWorkletScriptController::evaluate(WebCore::ScriptSourceCode const&, WTF::NakedPtr<JSC::Exception>&, WTF::String*) 9 com.apple.WebCore 0x121084754 WebCore::WorkerOrWorkletScriptController::evaluate(WebCore::ScriptSourceCode const&, WTF::String*) 10 com.apple.WebCore 0x1210959cc WebCore::WorkerThread::evaluateScriptIfNecessary(WTF::String&) 11 com.apple.WebCore 0x1210901ec WebCore::WorkerOrWorkletThread::workerOrWorkletThread() 12 com.apple.JavaScriptCore 0x1054525fc WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) 13 com.apple.JavaScriptCore 0x105454a20 WTF::wtfThreadEntryPoint(void*) 14 libsystem_pthread.dylib 0x182991f94 _pthread_start + 136 /AppleInternal/Library/BuildRoots/289ffcb4-455d-11ef-953d-e2437461156c/Library/Caches/com.apple.xbs/Sources/libpthread/src/pthread.c:931 15 libsystem_pthread.dylib 0x18298cd34 thread_start + 8 Test result: https://ews-build.webkit.org/#/builders/136/builds/27201 Test history: https://results.webkit.org/?suite=layout-tests&test=inspector%2Funit-tests%2Ftarget-manager.html 2144147 1 webkit-bug-importer 2025-09-18 15:27:07 -0700 <rdar://problem/160891742> 2144164 2 ews-feeder 2025-09-18 15:49:29 -0700 Test gardening commit 300194@main (f39dcf4deddb): <https://commits.webkit.org/300194@main> Reviewed commits have been landed. Closing PR #50960 and removing active labels.