crash log for renderer (pid ): STDOUT: This is a testharness.js-based test. STDOUT: PASS IDB Observers: Verify initial state and record all operations (changes in frame). STDOUT: PASS IDB Observers: Verify initial state and record all operations (changes in worker). STDOUT: PASS IDB Observers: Operation filtering (changes in frame). STDOUT: PASS IDB Observers: Operation filtering (changes in worker). STDOUT: PASS IDB Observers: Object store filtering (changes in frame). STDOUT: PASS IDB Observers: Object store filtering (changes in worker). STDOUT: PASS IDB Observers: Multiple connections (changes in frame). STDOUT: PASS IDB Observers: Multiple connections (changes in worker). STDOUT: PASS IDB Observers: Multiple observer calls (changes in frame). STDOUT: PASS IDB Observers: Multiple observer calls (changes in worker). STDOUT: PASS IDB Observers: Multiple observer calls with filtering (changes in frame). STDOUT: PASS IDB Observers: Multiple observer calls with filtering (changes in worker). STDOUT: PASS IDB Observers: Three connections, unobserve two (changes in frame). STDOUT: PASS IDB Observers: Three connections, unobserve two (changes in worker). STDOUT: PASS IDB Observers: Unobserve immediately (changes in frame). STDOUT: PASS IDB Observers: Unobserve immediately (changes in worker). STDOUT: PASS IDB Observers: Unobserve immediately on multiple (changes in frame). STDOUT: PASS IDB Observers: Unobserve immediately on multiple (changes in worker). STDOUT: PASS IDB Observers: Unobserve connection removes observers (changes in frame). STDOUT: PASS IDB Observers: Unobserve connection removes observers (changes in worker). STDOUT: PASS IDB Observers: Close connection removes observers (changes in frame). STDOUT: PASS IDB Observers: Close connection removes observers (changes in worker). STDOUT: Harness: the test ran to completion. STDOUT: STDERR: [11365:52747:0104/225212.222079:4270192275295:FATAL:IDBTransaction.cpp(139)] Check failed: m_state == Finished || !getExecutionContext(). STDERR: 0 libbase.dylib 0x000000011b25315e _ZN4base5debug10StackTraceC2Ev + 30 STDERR: 1 libbase.dylib 0x000000011b2531c5 _ZN4base5debug10StackTraceC1Ev + 21 STDERR: 2 libbase.dylib 0x000000011b2eb400 _ZN7logging10LogMessageD2Ev + 80 STDERR: 3 libbase.dylib 0x000000011b2e8f05 _ZN7logging10LogMessageD1Ev + 21 STDERR: 4 libblink_modules.dylib 0x00000001301657cc _ZN5blink14IDBTransactionD2Ev + 300 STDERR: 5 libblink_modules.dylib 0x0000000130165995 _ZN5blink14IDBTransactionD1Ev + 21 STDERR: 6 libblink_modules.dylib 0x000000012f666874 _ZN5blink25GarbageCollectedFinalizedINS_11EventTargetEE30finalizeGarbageCollectedObjectEv + 36 STDERR: 7 libblink_modules.dylib 0x000000012f666845 _ZN5blink18FinalizerTraitImplINS_11EventTargetELb1EE8finalizeEPv + 21 STDERR: 8 libblink_modules.dylib 0x000000012f666825 _ZN5blink14FinalizerTraitINS_11EventTargetEE8finalizeEPv + 21 STDERR: 9 libblink_platform.dylib 0x000000012577ace1 _ZN5blink16HeapObjectHeader8finalizeEPhm + 97 STDERR: 10 libblink_platform.dylib 0x000000012578129e _ZN5blink10NormalPage5sweepEv + 494 STDERR: 11 libblink_platform.dylib 0x000000012577c039 _ZN5blink9BaseArena16sweepUnsweptPageEv + 105 STDERR: 12 libblink_platform.dylib 0x000000012577c4a9 _ZN5blink9BaseArena13completeSweepEv + 297 STDERR: 13 libblink_platform.dylib 0x000000012578b361 _ZN5blink11ThreadState13completeSweepEv + 513 STDERR: 14 libblink_platform.dylib 0x00000001257940ab _ZN5blink11ThreadState8preSweepEv + 219 STDERR: 15 libblink_platform.dylib 0x000000012578b998 _ZN5blink11ThreadState34collectGarbageForTerminatingThreadEv + 648 STDERR: 16 libblink_platform.dylib 0x000000012578b051 _ZN5blink11ThreadState16runTerminationGCEv + 289 STDERR: 17 libblink_platform.dylib 0x000000012575e3d4 _ZN5blink10ThreadHeap6detachEPNS_11ThreadStateE + 164 STDERR: 18 libblink_platform.dylib 0x000000012578bb06 _ZN5blink11ThreadState19detachCurrentThreadEv + 38 STDERR: 19 libblink_platform.dylib 0x000000012504c0e8 _ZN5blink21WebThreadSupportingGC8shutdownEv + 312 STDERR: 20 libblink_core.dylib 0x000000012a317f5b _ZN5blink19WorkerBackingThread8shutdownEv + 123 STDERR: 21 libblink_core.dylib 0x000000012a34ced3 _ZN5blink12WorkerThread29performShutdownOnWorkerThreadEv + 675 STDERR: 22 libblink_core.dylib 0x000000012a35b7a5 _ZN4base8internal13FunctorTraitsIMN5blink12WorkerThreadEFvvEvE6InvokeIPS3_JEEEvS5_OT_DpOT0_ + 133 STDERR: 23 libblink_core.dylib 0x000000012a35b714 _ZN4base8internal12InvokeHelperILb0EvE8MakeItSoIRKMN5blink12WorkerThreadEFvvEJPS5_EEEvOT_DpOT0_ + 68 STDERR: 24 libblink_core.dylib 0x000000012a35b6ab _ZN4base8internal7InvokerINS0_9BindStateIMN5blink12WorkerThreadEFvvEJN3WTF17UnretainedWrapperIS4_LNS7_22FunctionThreadAffinityE0EEEEEEFvvEE7RunImplIRKS6_RKNSt3__15tupleIJSA_EEEJLm0EEEEvOT_OT0_NS_13IndexSequenceIJXspT1_EEEE + 91 STDERR: 25 libblink_core.dylib 0x000000012a35b5ec _ZN4base8internal7InvokerINS0_9BindStateIMN5blink12WorkerThreadEFvvEJN3WTF17UnretainedWrapperIS4_LNS7_22FunctionThreadAffinityE0EEEEEEFvvEE3RunEPNS0_13BindStateBaseE + 44 STDERR: 26 libbase.dylib 0x000000011b254eaa _ZNO4base8internal8RunMixinINS_8CallbackIFvvELNS0_8CopyModeE0ELNS0_10RepeatModeE0EEEE3RunEv + 90 STDERR: 27 libbase.dylib 0x000000011b254bfb _ZN4base5debug13TaskAnnotator7RunTaskEPKcPNS_11PendingTaskE + 699 STDERR: 28 libblink_platform.dylib 0x000000012552de01 _ZN5blink9scheduler16TaskQueueManager24ProcessTaskFromWorkQueueEPNS0_8internal9WorkQueueEPNS0_7LazyNowE + 2177 STDERR: 29 libblink_platform.dylib 0x000000012552a1c9 _ZN5blink9scheduler16TaskQueueManager6DoWorkEN4base9TimeTicksEb + 1369 STDERR: 30 libblink_platform.dylib 0x00000001255345fb _ZN4base8internal13FunctorTraitsIMN5blink9scheduler16TaskQueueManagerEFvNS_9TimeTicksEbEvE6InvokeIRKNS_7WeakPtrIS4_EEJRKS5_RKbEEEvS7_OT_DpOT0_ + 203 STDERR: 31 libblink_platform.dylib 0x0000000125534415 _ZN4base8internal12InvokeHelperILb1EvE8MakeItSoIRKMN5blink9scheduler16TaskQueueManagerEFvNS_9TimeTicksEbERKNS_7WeakPtrIS6_EEJRKS7_RKbEEEvOT_OT0_DpOT1_ + 133 STDERR: 32 libblink_platform.dylib 0x000000012553438a _ZN4base8internal7InvokerINS0_9BindStateIMN5blink9scheduler16TaskQueueManagerEFvNS_9TimeTicksEbEJNS_7WeakPtrIS5_EES6_bEEEFvvEE7RunImplIRKS8_RKNSt3__15tupleIJSA_S6_bEEEJLm0ELm1ELm2EEEEvOT_OT0_NS_13IndexSequenceIJXspT1_EEEE + 138 STDERR: 33 libblink_platform.dylib 0x000000012553427c _ZN4base8internal7InvokerINS0_9BindStateIMN5blink9scheduler16TaskQueueManagerEFvNS_9TimeTicksEbEJNS_7WeakPtrIS5_EES6_bEEEFvvEE3RunEPNS0_13BindStateBaseE + 44 STDERR: 34 libbase.dylib 0x000000011b254eaa _ZNO4base8internal8RunMixinINS_8CallbackIFvvELNS0_8CopyModeE0ELNS0_10RepeatModeE0EEEE3RunEv + 90 STDERR: 35 libbase.dylib 0x000000011b254bfb _ZN4base5debug13TaskAnnotator7RunTaskEPKcPNS_11PendingTaskE + 699 STDERR: 36 libbase.dylib 0x000000011b341cab _ZN4base11MessageLoop7RunTaskEPNS_11PendingTaskE + 923 STDERR: 37 libbase.dylib 0x000000011b342224 _ZN4base11MessageLoop21DeferOrRunPendingTaskENS_11PendingTaskE + 68 STDERR: 38 libbase.dylib 0x000000011b342c5d _ZN4base11MessageLoop6DoWorkEv + 669 STDERR: 39 libbase.dylib 0x000000011b354b88 _ZN4base24MessagePumpCFRunLoopBase7RunWorkEv + 104 STDERR: 40 libbase.dylib 0x000000011b354b0c ___ZN4base24MessagePumpCFRunLoopBase13RunWorkSourceEPv_block_invoke + 28 STDERR: 41 libbase.dylib 0x000000011b2ef3fa _ZN4base3mac15CallWithEHFrameEU13block_pointerFvvE + 10 STDERR: 42 libbase.dylib 0x000000011b3540f5 _ZN4base24MessagePumpCFRunLoopBase13RunWorkSourceEPv + 101 STDERR: 43 CoreFoundation 0x00007fff9685d5c1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17 STDERR: 44 CoreFoundation 0x00007fff9684f41c __CFRunLoopDoSources0 + 556 STDERR: 45 CoreFoundation 0x00007fff9684e93f __CFRunLoopRun + 927 STDERR: 46 CoreFoundation 0x00007fff9684e338 CFRunLoopRunSpecific + 296 STDERR: 47 libbase.dylib 0x000000011b3551ec _ZN4base20MessagePumpCFRunLoop5DoRunEPNS_11MessagePump8DelegateE + 76 STDERR: 48 libbase.dylib 0x000000011b3548da _ZN4base24MessagePumpCFRunLoopBase3RunEPNS_11MessagePump8DelegateE + 122 STDERR: 49 libbase.dylib 0x000000011b341735 _ZN4base11MessageLoop10RunHandlerEv + 645 STDERR: 50 libbase.dylib 0x000000011b424953 _ZN4base7RunLoop3RunEv + 307 STDERR: 51 libbase.dylib 0x000000011b5247ec _ZN4base6Thread3RunEPNS_7RunLoopE + 428 STDERR: 52 libbase.dylib 0x000000011b525ab8 _ZN4base6Thread10ThreadMainEv + 3512 STDERR: 53 libbase.dylib 0x000000011b4fedf1 _ZN4base12_GLOBAL__N_110ThreadFuncEPv + 705 STDERR: 54 libsystem_pthread.dylib 0x00007fff902c7c13 _pthread_body + 131 STDERR: 55 libsystem_pthread.dylib 0x00007fff902c7b90 _pthread_body + 0 STDERR: 56 libsystem_pthread.dylib 0x00007fff902c5375 thread_start + 13 STDERR: