Bug 170929 – Crash when running airjs-tests.yaml

• Component: JavaScriptCore
• Status: NEW

[Saam Barati]

I haven't been able to reproduce it:


-------------------------
airjs-tests.yaml/stress-test.js.ftl-no-cjit: Running mandatory iteration #1:
airjs-tests.yaml/stress-test.js.ftl-no-cjit: In call from stackAddr#DCAWge:[0x10b0be260->0x10b12a300, BaselineFunctionCall, 84 (ShouldAlwaysBeInlined) (StrictMode)] bc#73 to createStackAddr#BOtQ2T:[0x10b0be020->0x10b1646e0, BaselineFunctionCall, 165 (ShouldAlwaysBeInlined) (StrictMode)]: caller's DFG capability level is not set.
airjs-tests.yaml/stress-test.js.ftl-no-cjit: test_script_1017: line 2: 53946 Segmentation fault: 11  ( "$@" ../../../.vm/JavaScriptCore.framework/Resources/jsc --useFTLJIT\=false --useFunctionDotArguments\=true --maxPerThreadStackUsage\=1572864 --validateBytecode\=true --validateGraphAtEachPhase\=true --useFTLJIT\=true --useConcurrentJIT\=false --thresholdForJITAfterWarmUp\=100 --scribbleFreeCells\=true --collectContinuously\=true --useGenerationalGC\=false stress-test.js )
airjs-tests.yaml/stress-test.js.ftl-no-cjit: ERROR: Unexpected exit code: 139
--------------------------

crash log:
Process:               jsc [53946]
Path:                  /Users/USER/*/JavaScriptCore.framework/Versions/A/Resources/jsc
Identifier:            jsc
Version:               0
Code Type:             X86-64 (Native)
Parent Process:        ??? [53945]
Responsible:           jsc [53946]
User ID:               501

Date/Time:             2017-04-17 18:42:10.489 -0700
Report Version:        12

Time Awake Since Boot: 97000 seconds
Time Since Wake:       5100 seconds

System Integrity Protection: enabled

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
Exception Codes:       KERN_INVALID_ADDRESS at 0x0000000000198f10
Exception Note:        EXC_CORPSE_NOTIFY

Termination Signal:    Segmentation fault: 11
Termination Reason:    Namespace SIGNAL, Code 0xb
Terminating Process:   exc handler [0]

VM Regions Near 0x198f10:
--> 
    __TEXT                 0000000108844000-000000010887c000 [  224K] r-x/rwx SM=COW  /Users/USER/*/JavaScriptCore.framework/Versions/A/Resources/jsc

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.JavaScriptCore      	0x0000000108a2de7b JSC::CodeBlock::noticeIncomingCall(JSC::ExecState*) + 27 (Register.h:158)
1   com.apple.JavaScriptCore      	0x0000000108a2e242 JSC::CodeBlock::linkIncomingPolymorphicCall(JSC::ExecState*, JSC::PolymorphicCallNode*) + 18 (CodeBlock.cpp:1792)
2   ???                           	0x00007fff573b9db0 0 + 140734656912816
3   com.apple.JavaScriptCore      	0x0000000108a2de32 JSC::CodeBlock::linkIncomingCall(JSC::ExecState*, JSC::CallLinkInfo*) + 18 (CodeBlock.cpp:1786)
4   com.apple.JavaScriptCore      	0x0000000109182d6a JSC::linkFor(JSC::ExecState*, JSC::CallLinkInfo&, JSC::CodeBlock*, JSC::JSFunction*, JSC::MacroAssemblerCodePtr) + 314 (CallLinkInfo.h:84)
5   com.apple.JavaScriptCore      	0x0000000108ead58b operationLinkCall + 1035 (CallLinkInfo.h:134)
6   ???                           	0x000042c81c801784 0 + 73427239049092
7   ???                           	0x000042c81c933704 0 + 73427240302340
8   ???                           	0x000042c81c8e7375 0 + 73427239990133
9   ???                           	0x000042c81c87dd40 0 + 73427239558464
10  ???                           	0x000042c81c8f6d6d 0 + 73427240054125
11  ???                           	0x000042c81c90dc08 0 + 73427240147976
12  com.apple.JavaScriptCore      	0x000000010902afcb llint_entry + 26701 (LowLevelInterpreter.asm:761)
13  com.apple.JavaScriptCore      	0x000000010902afcb llint_entry + 26701 (LowLevelInterpreter.asm:761)
14  com.apple.JavaScriptCore      	0x000000010902459b vmEntryToJavaScript + 299 (LowLevelInterpreter64.asm:256)
15  com.apple.JavaScriptCore      	0x0000000108e859ff JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) + 127 (JITCode.cpp:82)
16  com.apple.JavaScriptCore      	0x0000000108e4bed0 JSC::Interpreter::executeProgram(JSC::SourceCode const&, JSC::ExecState*, JSC::JSObject*) + 13872 (Ref.h:58)
17  com.apple.JavaScriptCore      	0x0000000108a7507e JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&) + 302 (Completion.cpp:102)
18  jsc                           	0x0000000108847941 jscmain(int, char**) + 3585 (jsc.cpp:3524)
19  jsc                           	0x0000000108846b2b main + 27 (jsc.cpp:3364)
20  libdyld.dylib                 	0x00007fffa23ff235 start + 1

Thread 1:
0   libsystem_kernel.dylib        	0x00007fffa252df46 __semwait_signal + 10
1   libsystem_c.dylib             	0x00007fffa24b4b72 nanosleep + 199
2   libc++.1.dylib                	0x00007fffa0fd965b std::__1::this_thread::sleep_for(std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > const&) + 80
3   com.apple.JavaScriptCore      	0x0000000109330a5f void std::__1::this_thread::sleep_for<long long, std::__1::ratio<1l, 1000l> >(std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000l> > const&) + 63 (thread:441)
4   com.apple.JavaScriptCore      	0x000000010932f941 bmalloc::waitUntilFalse(std::__1::unique_lock<bmalloc::StaticMutex>&, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000l> >, bool&) + 113 (__mutex_base:197)
5   com.apple.JavaScriptCore      	0x000000010932f790 bmalloc::Heap::scavenge(std::__1::unique_lock<bmalloc::StaticMutex>&, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000l> >) + 48 (array:148)
6   com.apple.JavaScriptCore      	0x000000010932f626 bmalloc::Heap::concurrentScavenge() + 102 (__mutex_base:131)
7   com.apple.JavaScriptCore      	0x0000000109330cb1 bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop() + 97 (atomic:882)
8   com.apple.JavaScriptCore      	0x0000000109330bbd bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadEntryPoint(bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>*) + 29
9   com.apple.JavaScriptCore      	0x0000000109330e6d void* std::__1::__thread_proxy<std::__1::tuple<void (*)(bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>*), bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>*> >(void*) + 93 (memory:2723)
10  libsystem_pthread.dylib       	0x00007fffa261893b _pthread_body + 180
11  libsystem_pthread.dylib       	0x00007fffa2618887 _pthread_start + 286
12  libsystem_pthread.dylib       	0x00007fffa261808d thread_start + 13

Thread 2:: jsc Timeout Thread
0   libsystem_kernel.dylib        	0x00007fffa252dbf2 __psynch_cvwait + 10
1   libsystem_pthread.dylib       	0x00007fffa26197fa _pthread_cond_wait + 712
2   com.apple.JavaScriptCore      	0x00000001093216d7 WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 119 (ThreadingPthreads.cpp:512)
3   com.apple.JavaScriptCore      	0x0000000109309d02 WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) + 2738 (ParkingLot.cpp:604)
4   com.apple.JavaScriptCore      	0x00000001089476f6 bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&) + 150 (ParkingLot.h:81)
5   com.apple.JavaScriptCore      	0x00000001092f0638 WTF::sleep(double) + 72 (Condition.h:117)
6   jsc                           	0x0000000108849f32 timeoutThreadMain(void*) + 34 (jsc.cpp:3303)
7   com.apple.JavaScriptCore      	0x0000000109320b32 WTF::threadEntryPoint(void*) + 178 (functional:1766)
8   com.apple.JavaScriptCore      	0x000000010932112a WTF::wtfThreadEntryPoint(void*) + 74 (utility:753)
9   libsystem_pthread.dylib       	0x00007fffa261893b _pthread_body + 180
10  libsystem_pthread.dylib       	0x00007fffa2618887 _pthread_start + 286
11  libsystem_pthread.dylib       	0x00007fffa261808d thread_start + 13

Thread 3:
0   libsystem_kernel.dylib        	0x00007fffa252e44e __workq_kernreturn + 10
1   libsystem_pthread.dylib       	0x00007fffa261848e _pthread_wqthread + 1023
2   libsystem_pthread.dylib       	0x00007fffa261807d start_wqthread + 13

Thread 4:
0   libsystem_kernel.dylib        	0x00007fffa252e44e __workq_kernreturn + 10
1   libsystem_pthread.dylib       	0x00007fffa2618621 _pthread_wqthread + 1426
2   libsystem_pthread.dylib       	0x00007fffa261807d start_wqthread + 13

Thread 5:
0   libsystem_kernel.dylib        	0x00007fffa252e44e __workq_kernreturn + 10
1   libsystem_pthread.dylib       	0x00007fffa2618621 _pthread_wqthread + 1426
2   libsystem_pthread.dylib       	0x00007fffa261807d start_wqthread + 13

Thread 6:: JSC DEBUG Continuous GC
0   libsystem_kernel.dylib        	0x00007fffa252dbf2 __psynch_cvwait + 10
1   libsystem_pthread.dylib       	0x00007fffa26197fa _pthread_cond_wait + 712
2   com.apple.JavaScriptCore      	0x00000001093216d7 WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 119 (ThreadingPthreads.cpp:512)
3   com.apple.JavaScriptCore      	0x0000000109309d02 WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) + 2738 (ParkingLot.cpp:604)
4   com.apple.JavaScriptCore      	0x00000001089476f6 bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&) + 150 (ParkingLot.h:81)
5   com.apple.JavaScriptCore      	0x0000000108dd5aef std::__1::__function::__func<JSC::Heap::notifyIsSafeToCollect()::$_1, std::__1::allocator<JSC::Heap::notifyIsSafeToCollect()::$_1>, void ()>::operator()() + 479 (TimeWithDynamicClockType.h:48)
6   com.apple.JavaScriptCore      	0x0000000109320b32 WTF::threadEntryPoint(void*) + 178 (functional:1766)
7   com.apple.JavaScriptCore      	0x000000010932112a WTF::wtfThreadEntryPoint(void*) + 74 (utility:753)
8   libsystem_pthread.dylib       	0x00007fffa261893b _pthread_body + 180
9   libsystem_pthread.dylib       	0x00007fffa2618887 _pthread_start + 286
10  libsystem_pthread.dylib       	0x00007fffa261808d thread_start + 13

Thread 7:: WTF::AutomaticThread
0   libsystem_kernel.dylib        	0x00007fffa252dbf2 __psynch_cvwait + 10
1   libsystem_pthread.dylib       	0x00007fffa26197fa _pthread_cond_wait + 712
2   com.apple.JavaScriptCore      	0x00000001093216d7 WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 119 (ThreadingPthreads.cpp:512)
3   com.apple.JavaScriptCore      	0x0000000109309d02 WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) + 2738 (ParkingLot.cpp:604)
4   com.apple.JavaScriptCore      	0x00000001089476f6 bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&) + 150 (ParkingLot.h:81)
5   com.apple.JavaScriptCore      	0x00000001092e9aa7 std::__1::__function::__func<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0, std::__1::allocator<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0>, void ()>::operator()() + 199 (AutomaticThread.cpp:203)
6   com.apple.JavaScriptCore      	0x0000000109320b32 WTF::threadEntryPoint(void*) + 178 (functional:1766)
7   com.apple.JavaScriptCore      	0x000000010932112a WTF::wtfThreadEntryPoint(void*) + 74 (utility:753)
8   libsystem_pthread.dylib       	0x00007fffa261893b _pthread_body + 180
9   libsystem_pthread.dylib       	0x00007fffa2618887 _pthread_start + 286
10  libsystem_pthread.dylib       	0x00007fffa261808d thread_start + 13

Thread 8:: WTF::AutomaticThread
0   libsystem_kernel.dylib        	0x00007fffa252dbf2 __psynch_cvwait + 10
1   libsystem_pthread.dylib       	0x00007fffa26197fa _pthread_cond_wait + 712
2   com.apple.JavaScriptCore      	0x000000010932169f WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 63 (ThreadingPthreads.cpp:491)
3   com.apple.JavaScriptCore      	0x0000000109309d02 WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) + 2738 (ParkingLot.cpp:604)
4   com.apple.JavaScriptCore      	0x00000001089476f6 bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&) + 150 (ParkingLot.h:81)
5   com.apple.JavaScriptCore      	0x00000001091a28b8 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode, WTF::MonotonicTime) + 792 (SlotVisitor.cpp:634)
6   com.apple.JavaScriptCore      	0x0000000108dd2732 WTF::SharedTaskFunctor<void (), JSC::Heap::runBeginPhase(JSC::GCConductor)::$_11>::run() + 594 (SlotVisitor.h:257)
7   com.apple.JavaScriptCore      	0x000000010930855c WTF::ParallelHelperClient::runTask(WTF::RefPtr<WTF::SharedTask<void ()> >) + 44 (RefPtr.h:74)
8   com.apple.JavaScriptCore      	0x0000000109309050 WTF::ParallelHelperPool::Thread::work() + 48 (utility:754)
9   com.apple.JavaScriptCore      	0x00000001092e9b1e std::__1::__function::__func<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0, std::__1::allocator<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0>, void ()>::operator()() + 318 (AutomaticThread.cpp:216)
10  com.apple.JavaScriptCore      	0x0000000109320b32 WTF::threadEntryPoint(void*) + 178 (functional:1766)
11  com.apple.JavaScriptCore      	0x000000010932112a WTF::wtfThreadEntryPoint(void*) + 74 (utility:753)
12  libsystem_pthread.dylib       	0x00007fffa261893b _pthread_body + 180
13  libsystem_pthread.dylib       	0x00007fffa2618887 _pthread_start + 286
14  libsystem_pthread.dylib       	0x00007fffa261808d thread_start + 13

Thread 9:: WTF::AutomaticThread
0   libsystem_kernel.dylib        	0x00007fffa252dbf2 __psynch_cvwait + 10
1   libsystem_pthread.dylib       	0x00007fffa26197fa _pthread_cond_wait + 712
2   com.apple.JavaScriptCore      	0x000000010932169f WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 63 (ThreadingPthreads.cpp:491)
3   com.apple.JavaScriptCore      	0x0000000109309d02 WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) + 2738 (ParkingLot.cpp:604)
4   com.apple.JavaScriptCore      	0x00000001089476f6 bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&) + 150 (ParkingLot.h:81)
5   com.apple.JavaScriptCore      	0x00000001091a28b8 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode, WTF::MonotonicTime) + 792 (SlotVisitor.cpp:634)
6   com.apple.JavaScriptCore      	0x0000000108dd2732 WTF::SharedTaskFunctor<void (), JSC::Heap::runBeginPhase(JSC::GCConductor)::$_11>::run() + 594 (SlotVisitor.h:257)
7   com.apple.JavaScriptCore      	0x000000010930855c WTF::ParallelHelperClient::runTask(WTF::RefPtr<WTF::SharedTask<void ()> >) + 44 (RefPtr.h:74)
8   com.apple.JavaScriptCore      	0x0000000109309050 WTF::ParallelHelperPool::Thread::work() + 48 (utility:754)
9   com.apple.JavaScriptCore      	0x00000001092e9b1e std::__1::__function::__func<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0, std::__1::allocator<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0>, void ()>::operator()() + 318 (AutomaticThread.cpp:216)
10  com.apple.JavaScriptCore      	0x0000000109320b32 WTF::threadEntryPoint(void*) + 178 (functional:1766)
11  com.apple.JavaScriptCore      	0x000000010932112a WTF::wtfThreadEntryPoint(void*) + 74 (utility:753)
12  libsystem_pthread.dylib       	0x00007fffa261893b _pthread_body + 180
13  libsystem_pthread.dylib       	0x00007fffa2618887 _pthread_start + 286
14  libsystem_pthread.dylib       	0x00007fffa261808d thread_start + 13

Thread 10:: WTF::AutomaticThread
0   libsystem_kernel.dylib        	0x00007fffa252dbf2 __psynch_cvwait + 10
1   libsystem_pthread.dylib       	0x00007fffa26197fa _pthread_cond_wait + 712
2   com.apple.JavaScriptCore      	0x000000010932169f WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 63 (ThreadingPthreads.cpp:491)
3   com.apple.JavaScriptCore      	0x0000000109309d02 WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) + 2738 (ParkingLot.cpp:604)
4   com.apple.JavaScriptCore      	0x00000001089476f6 bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&) + 150 (ParkingLot.h:81)
5   com.apple.JavaScriptCore      	0x00000001091a28b8 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode, WTF::MonotonicTime) + 792 (SlotVisitor.cpp:634)
6   com.apple.JavaScriptCore      	0x0000000108dd2732 WTF::SharedTaskFunctor<void (), JSC::Heap::runBeginPhase(JSC::GCConductor)::$_11>::run() + 594 (SlotVisitor.h:257)
7   com.apple.JavaScriptCore      	0x000000010930855c WTF::ParallelHelperClient::runTask(WTF::RefPtr<WTF::SharedTask<void ()> >) + 44 (RefPtr.h:74)
8   com.apple.JavaScriptCore      	0x0000000109309050 WTF::ParallelHelperPool::Thread::work() + 48 (utility:754)
9   com.apple.JavaScriptCore      	0x00000001092e9b1e std::__1::__function::__func<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0, std::__1::allocator<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0>, void ()>::operator()() + 318 (AutomaticThread.cpp:216)
10  com.apple.JavaScriptCore      	0x0000000109320b32 WTF::threadEntryPoint(void*) + 178 (functional:1766)
11  com.apple.JavaScriptCore      	0x000000010932112a WTF::wtfThreadEntryPoint(void*) + 74 (utility:753)
12  libsystem_pthread.dylib       	0x00007fffa261893b _pthread_body + 180
13  libsystem_pthread.dylib       	0x00007fffa2618887 _pthread_start + 286
14  libsystem_pthread.dylib       	0x00007fffa261808d thread_start + 13

Thread 11:: WTF::AutomaticThread
0   libsystem_kernel.dylib        	0x00007fffa252dbf2 __psynch_cvwait + 10
1   libsystem_pthread.dylib       	0x00007fffa26197fa _pthread_cond_wait + 712
2   com.apple.JavaScriptCore      	0x000000010932169f WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 63 (ThreadingPthreads.cpp:491)
3   com.apple.JavaScriptCore      	0x0000000109309d02 WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) + 2738 (ParkingLot.cpp:604)
4   com.apple.JavaScriptCore      	0x00000001089476f6 bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&) + 150 (ParkingLot.h:81)
5   com.apple.JavaScriptCore      	0x00000001091a28b8 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode, WTF::MonotonicTime) + 792 (SlotVisitor.cpp:634)
6   com.apple.JavaScriptCore      	0x0000000108dd2732 WTF::SharedTaskFunctor<void (), JSC::Heap::runBeginPhase(JSC::GCConductor)::$_11>::run() + 594 (SlotVisitor.h:257)
7   com.apple.JavaScriptCore      	0x000000010930855c WTF::ParallelHelperClient::runTask(WTF::RefPtr<WTF::SharedTask<void ()> >) + 44 (RefPtr.h:74)
8   com.apple.JavaScriptCore      	0x0000000109309050 WTF::ParallelHelperPool::Thread::work() + 48 (utility:754)
9   com.apple.JavaScriptCore      	0x00000001092e9b1e std::__1::__function::__func<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0, std::__1::allocator<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0>, void ()>::operator()() + 318 (AutomaticThread.cpp:216)
10  com.apple.JavaScriptCore      	0x0000000109320b32 WTF::threadEntryPoint(void*) + 178 (functional:1766)
11  com.apple.JavaScriptCore      	0x000000010932112a WTF::wtfThreadEntryPoint(void*) + 74 (utility:753)
12  libsystem_pthread.dylib       	0x00007fffa261893b _pthread_body + 180
13  libsystem_pthread.dylib       	0x00007fffa2618887 _pthread_start + 286
14  libsystem_pthread.dylib       	0x00007fffa261808d thread_start + 13

Thread 12:: WTF::AutomaticThread
0   libsystem_kernel.dylib        	0x00007fffa252dbf2 __psynch_cvwait + 10
1   libsystem_pthread.dylib       	0x00007fffa26197fa _pthread_cond_wait + 712
2   com.apple.JavaScriptCore      	0x000000010932169f WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 63 (ThreadingPthreads.cpp:491)
3   com.apple.JavaScriptCore      	0x0000000109309d02 WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) + 2738 (ParkingLot.cpp:604)
4   com.apple.JavaScriptCore      	0x00000001089476f6 bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&) + 150 (ParkingLot.h:81)
5   com.apple.JavaScriptCore      	0x00000001091a28b8 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode, WTF::MonotonicTime) + 792 (SlotVisitor.cpp:634)
6   com.apple.JavaScriptCore      	0x0000000108dd2732 WTF::SharedTaskFunctor<void (), JSC::Heap::runBeginPhase(JSC::GCConductor)::$_11>::run() + 594 (SlotVisitor.h:257)
7   com.apple.JavaScriptCore      	0x000000010930855c WTF::ParallelHelperClient::runTask(WTF::RefPtr<WTF::SharedTask<void ()> >) + 44 (RefPtr.h:74)
8   com.apple.JavaScriptCore      	0x0000000109309050 WTF::ParallelHelperPool::Thread::work() + 48 (utility:754)
9   com.apple.JavaScriptCore      	0x00000001092e9b1e std::__1::__function::__func<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0, std::__1::allocator<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0>, void ()>::operator()() + 318 (AutomaticThread.cpp:216)
10  com.apple.JavaScriptCore      	0x0000000109320b32 WTF::threadEntryPoint(void*) + 178 (functional:1766)
11  com.apple.JavaScriptCore      	0x000000010932112a WTF::wtfThreadEntryPoint(void*) + 74 (utility:753)
12  libsystem_pthread.dylib       	0x00007fffa261893b _pthread_body + 180
13  libsystem_pthread.dylib       	0x00007fffa2618887 _pthread_start + 286
14  libsystem_pthread.dylib       	0x00007fffa261808d thread_start + 13

Thread 13:: WTF::AutomaticThread
0   libsystem_kernel.dylib        	0x00007fffa252dbf2 __psynch_cvwait + 10
1   libsystem_pthread.dylib       	0x00007fffa26197fa _pthread_cond_wait + 712
2   com.apple.JavaScriptCore      	0x000000010932169f WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 63 (ThreadingPthreads.cpp:491)
3   com.apple.JavaScriptCore      	0x0000000109309d02 WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) + 2738 (ParkingLot.cpp:604)
4   com.apple.JavaScriptCore      	0x00000001089476f6 bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&) + 150 (ParkingLot.h:81)
5   com.apple.JavaScriptCore      	0x00000001091a28b8 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode, WTF::MonotonicTime) + 792 (SlotVisitor.cpp:634)
6   com.apple.JavaScriptCore      	0x0000000108dd2732 WTF::SharedTaskFunctor<void (), JSC::Heap::runBeginPhase(JSC::GCConductor)::$_11>::run() + 594 (SlotVisitor.h:257)
7   com.apple.JavaScriptCore      	0x000000010930855c WTF::ParallelHelperClient::runTask(WTF::RefPtr<WTF::SharedTask<void ()> >) + 44 (RefPtr.h:74)
8   com.apple.JavaScriptCore      	0x0000000109309050 WTF::ParallelHelperPool::Thread::work() + 48 (utility:754)
9   com.apple.JavaScriptCore      	0x00000001092e9b1e std::__1::__function::__func<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0, std::__1::allocator<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0>, void ()>::operator()() + 318 (AutomaticThread.cpp:216)
10  com.apple.JavaScriptCore      	0x0000000109320b32 WTF::threadEntryPoint(void*) + 178 (functional:1766)
11  com.apple.JavaScriptCore      	0x000000010932112a WTF::wtfThreadEntryPoint(void*) + 74 (utility:753)
12  libsystem_pthread.dylib       	0x00007fffa261893b _pthread_body + 180
13  libsystem_pthread.dylib       	0x00007fffa2618887 _pthread_start + 286
14  libsystem_pthread.dylib       	0x00007fffa261808d thread_start + 13

Thread 14:: WTF::AutomaticThread
0   libsystem_kernel.dylib        	0x00007fffa252dbf2 __psynch_cvwait + 10
1   libsystem_pthread.dylib       	0x00007fffa26197fa _pthread_cond_wait + 712
2   com.apple.JavaScriptCore      	0x000000010932169f WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 63 (ThreadingPthreads.cpp:491)
3   com.apple.JavaScriptCore      	0x0000000109309d02 WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) + 2738 (ParkingLot.cpp:604)
4   com.apple.JavaScriptCore      	0x00000001089476f6 bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&) + 150 (ParkingLot.h:81)
5   com.apple.JavaScriptCore      	0x00000001091a28b8 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode, WTF::MonotonicTime) + 792 (SlotVisitor.cpp:634)
6   com.apple.JavaScriptCore      	0x0000000108dd2732 WTF::SharedTaskFunctor<void (), JSC::Heap::runBeginPhase(JSC::GCConductor)::$_11>::run() + 594 (SlotVisitor.h:257)
7   com.apple.JavaScriptCore      	0x000000010930855c WTF::ParallelHelperClient::runTask(WTF::RefPtr<WTF::SharedTask<void ()> >) + 44 (RefPtr.h:74)
8   com.apple.JavaScriptCore      	0x0000000109309050 WTF::ParallelHelperPool::Thread::work() + 48 (utility:754)
9   com.apple.JavaScriptCore      	0x00000001092e9b1e std::__1::__function::__func<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0, std::__1::allocator<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0>, void ()>::operator()() + 318 (AutomaticThread.cpp:216)
10  com.apple.JavaScriptCore      	0x0000000109320b32 WTF::threadEntryPoint(void*) + 178 (functional:1766)
11  com.apple.JavaScriptCore      	0x000000010932112a WTF::wtfThreadEntryPoint(void*) + 74 (utility:753)
12  libsystem_pthread.dylib       	0x00007fffa261893b _pthread_body + 180
13  libsystem_pthread.dylib       	0x00007fffa2618887 _pthread_start + 286
14  libsystem_pthread.dylib       	0x00007fffa261808d thread_start + 13

Thread 0 crashed with X86 Thread State (64-bit):
  rax: 0x0000000000000001  rbx: 0x0000000109410080  rcx: 0x0000000000000000  rdx: 0x0000000000012068
  rdi: 0x0000000109410080  rsi: 0x0000000000198f00  rbp: 0x00007fff573b9b08  rsp: 0x00007fff573b9a68
   r8: 0x0000000000000040   r9: 0x00007fffab2f1040  r10: 0xffffffffffffffff  r11: 0x0000000000012068
  r12: 0x0000000109410080  r13: 0x000000010b0be260  r14: 0x0000000000012068  r15: 0x0000000109411a01
  rip: 0x0000000108a2de7b  rfl: 0x0000000000010212  cr2: 0x0000000000198f10
  
Logical CPU:     4
Error Code:      0x00000004
Trap Number:     14


Binary Images:
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    0x7fffa0b08000 -     0x7fffa0b0affb  com.apple.loginsupport (1.0 - 1) <F3140B97-12C3-35A7-9D3D-43DA2D13C113> /System/Library/PrivateFrameworks/login.framework/Versions/A/Frameworks/loginsupport.framework/Versions/A/loginsupport
    0x7fffa0b5f000 -     0x7fffa0b7aff7  libCRFSuite.dylib (34) <F78B7F5F-0B4F-35C6-AA2F-84EE9CB22137> /usr/lib/libCRFSuite.dylib
    0x7fffa0b7b000 -     0x7fffa0b86fff  libChineseTokenizer.dylib (21) <0886E908-A825-36AF-B94B-2361FD8BC2A1> /usr/lib/libChineseTokenizer.dylib
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    0x7fffa0e51000 -     0x7fffa0e51fff  libOpenScriptingUtil.dylib (172) <90743888-C1E8-34E3-924E-1A754B2B63B9> /usr/lib/libOpenScriptingUtil.dylib
    0x7fffa0e57000 -     0x7fffa0e58ffb  libSystem.B.dylib (1238.60.2) <05D51170-CB72-39B6-8C3A-9EE7C2031654> /usr/lib/libSystem.B.dylib
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    0x7fffa0f82000 -     0x7fffa0f90ff7  libbz2.1.0.dylib (38) <ADFA329A-DCE7-356D-8F09-A3168DFC6610> /usr/lib/libbz2.1.0.dylib
    0x7fffa0f91000 -     0x7fffa0fe7ff7  libc++.1.dylib (307.5) <0B43BB5D-E6EB-3464-8DE9-B41AC8ED9D1C> /usr/lib/libc++.1.dylib
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    0x7fffa1024000 -     0x7fffa103afcf  libcompression.dylib (39) <F2726F95-F54E-3B21-BCB5-F7151DEFDC2F> /usr/lib/libcompression.dylib
    0x7fffa103b000 -     0x7fffa103bff7  libcoretls.dylib (121.50.4) <64B1001E-10F6-3542-A3B2-C4B49F51817F> /usr/lib/libcoretls.dylib
    0x7fffa103c000 -     0x7fffa103dff3  libcoretls_cfhelpers.dylib (121.50.4) <1A10303E-5EB0-3C7C-9165-021FCDFD934D> /usr/lib/libcoretls_cfhelpers.dylib
    0x7fffa137a000 -     0x7fffa13cdff7  libcups.2.dylib (450) <9950BFCB-7882-33C9-9ECF-CE66773C5657> /usr/lib/libcups.2.dylib
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    0x7fffa1448000 -     0x7fffa1448fff  libenergytrace.dylib (15) <A1B040A2-7977-3097-9ADF-34FF181EB970> /usr/lib/libenergytrace.dylib
    0x7fffa1458000 -     0x7fffa145dff7  libheimdal-asn1.dylib (498.50.8) <A40E3196-235E-34CE-AD9A-8D1AFC5DE004> /usr/lib/libheimdal-asn1.dylib
    0x7fffa145e000 -     0x7fffa1550ff7  libiconv.2.dylib (50) <42125B35-81D7-3FC4-9475-A26DBE10884D> /usr/lib/libiconv.2.dylib
    0x7fffa1551000 -     0x7fffa1776ffb  libicucore.A.dylib (57165.0.1) <2931B842-2946-3576-AD1D-1CDA22FA1388> /usr/lib/libicucore.A.dylib
    0x7fffa177c000 -     0x7fffa177dfff  liblangid.dylib (126) <2085E7A7-9A34-3735-87F4-F174EF8EABF0> /usr/lib/liblangid.dylib
    0x7fffa177e000 -     0x7fffa1797ffb  liblzma.5.dylib (10) <44BD0279-99DD-36B5-8A6E-C11432E2098D> /usr/lib/liblzma.5.dylib
    0x7fffa1798000 -     0x7fffa17aeff7  libmarisa.dylib (5) <9030D214-5D0F-30CB-AC03-902C63909362> /usr/lib/libmarisa.dylib
    0x7fffa17af000 -     0x7fffa1a57ff7  libmecabra.dylib (744.8) <D429FCC9-42A4-38B3-8784-44024BC859EF> /usr/lib/libmecabra.dylib
    0x7fffa1a58000 -     0x7fffa1a89ffb  libncurses.5.4.dylib (51.30.1) <B03B1BD2-7080-3856-BB02-7E8238320C3B> /usr/lib/libncurses.5.4.dylib
    0x7fffa1a8a000 -     0x7fffa1b04ff3  libnetwork.dylib (856.60.1) <191E99F5-4723-3180-8013-02AF2F9AE4B8> /usr/lib/libnetwork.dylib
    0x7fffa1b05000 -     0x7fffa1ed7047  libobjc.A.dylib (709) <DC77AA6E-A4E4-326D-8D7F-82D63AA88F99> /usr/lib/libobjc.A.dylib
    0x7fffa1eda000 -     0x7fffa1edefff  libpam.2.dylib (21.30.1) <71EB0D88-DE84-3C8D-A2C5-58AA282BC5BC> /usr/lib/libpam.2.dylib
    0x7fffa1edf000 -     0x7fffa1f10fff  libpcap.A.dylib (67.60.1) <F6BC6ED6-AEE4-3520-B248-0C342636E2B0> /usr/lib/libpcap.A.dylib
    0x7fffa1f2d000 -     0x7fffa1f49ffb  libresolv.9.dylib (64) <A244AE4C-00B0-396C-98FF-97FE4DB3DA30> /usr/lib/libresolv.9.dylib
    0x7fffa1f99000 -     0x7fffa20e6ff7  libsqlite3.dylib (254.7) <07CD6DE3-394D-3C6A-A4B4-4CAB1054A041> /usr/lib/libsqlite3.dylib
    0x7fffa21db000 -     0x7fffa21e8fff  libxar.1.dylib (357) <69547C64-E811-326F-BBED-490C6361BDCB> /usr/lib/libxar.1.dylib
    0x7fffa21e9000 -     0x7fffa22d8ffb  libxml2.2.dylib (30.16) <D2A6861B-D9FA-3BFC-B664-830C3FCE6065> /usr/lib/libxml2.2.dylib
    0x7fffa22d9000 -     0x7fffa2302fff  libxslt.1.dylib (15.9) <00735AD5-B62D-3E83-86AC-5533E4E2B102> /usr/lib/libxslt.1.dylib
    0x7fffa2303000 -     0x7fffa2314ff3  libz.1.dylib (67) <46E3FFA2-4328-327A-8D34-A03E20BFFB8E> /usr/lib/libz.1.dylib
    0x7fffa2323000 -     0x7fffa2327ff7  libcache.dylib (79) <093A4DAB-8385-3D47-A350-E20CB7CCF7BF> /usr/lib/system/libcache.dylib
    0x7fffa2328000 -     0x7fffa2332fff  libcommonCrypto.dylib (60092.50.5) <8A64D1B0-C70E-385C-92F0-E669079FDA90> /usr/lib/system/libcommonCrypto.dylib
    0x7fffa2333000 -     0x7fffa233afff  libcompiler_rt.dylib (62) <55D47421-772A-32AB-B529-1A46C2F43B4D> /usr/lib/system/libcompiler_rt.dylib
    0x7fffa233b000 -     0x7fffa2343fff  libcopyfile.dylib (138) <819BEA3C-DF11-3E3D-A1A1-5A51C5BF1961> /usr/lib/system/libcopyfile.dylib
    0x7fffa2344000 -     0x7fffa23c7fdf  libcorecrypto.dylib (442.50.19) <65D7165E-2E71-335D-A2D6-33F78E2DF0C1> /usr/lib/system/libcorecrypto.dylib
    0x7fffa23c8000 -     0x7fffa23f9fff  libdispatch.dylib (703.50.37) <6582BAD6-ED27-3B30-B620-90B1C5A4AE3C> /usr/lib/system/libdispatch.dylib
    0x7fffa23fa000 -     0x7fffa23ffffb  libdyld.dylib (433.5) <B3349877-0C44-3E0E-9214-74C1A61E7568> /usr/lib/system/libdyld.dylib
    0x7fffa2400000 -     0x7fffa2400ffb  libkeymgr.dylib (28) <7AA011A9-DC21-3488-BF73-3B5B14D1FDD6> /usr/lib/system/libkeymgr.dylib
    0x7fffa2401000 -     0x7fffa240dffb  libkxld.dylib (3789.60.15) <47682EDC-086B-39F2-A572-5785AE643271> /usr/lib/system/libkxld.dylib
    0x7fffa240e000 -     0x7fffa240efff  liblaunch.dylib (972.60.1) <7C659F84-4F72-3B22-AD10-5713C9B6FBCF> /usr/lib/system/liblaunch.dylib
    0x7fffa240f000 -     0x7fffa2414ff3  libmacho.dylib (898) <17D5D855-F6C3-3B04-B680-E9BF02EF8AED> /usr/lib/system/libmacho.dylib
    0x7fffa2415000 -     0x7fffa2417ff3  libquarantine.dylib (85.50.1) <12448CC2-378E-35F3-BE33-9DC395A5B970> /usr/lib/system/libquarantine.dylib
    0x7fffa2418000 -     0x7fffa2419ffb  libremovefile.dylib (45) <38D4CB9C-10CD-30D3-8B7B-A515EC75FE85> /usr/lib/system/libremovefile.dylib
    0x7fffa241a000 -     0x7fffa2432ff7  libsystem_asl.dylib (349.50.5) <096E4228-3B7C-30A6-8B13-EC909A64499A> /usr/lib/system/libsystem_asl.dylib
    0x7fffa2433000 -     0x7fffa2433ff7  libsystem_blocks.dylib (67) <10DC5404-73AB-35B3-A277-A8AFECB476EB> /usr/lib/system/libsystem_blocks.dylib
    0x7fffa2434000 -     0x7fffa24c1fef  libsystem_c.dylib (1158.50.2) <E5AE5244-7D0C-36AC-8BB6-C7AE7EA52A4B> /usr/lib/system/libsystem_c.dylib
    0x7fffa24c2000 -     0x7fffa24c5ffb  libsystem_configuration.dylib (888.60.2) <BECC01A2-CA8D-31E6-BCDF-D452965FA976> /usr/lib/system/libsystem_configuration.dylib
    0x7fffa24c6000 -     0x7fffa24c9fff  libsystem_coreservices.dylib (41.4) <7D26DE79-B424-3450-85E1-F7FAB32714AB> /usr/lib/system/libsystem_coreservices.dylib
    0x7fffa24ca000 -     0x7fffa24e2fff  libsystem_coretls.dylib (121.50.4) <EC6FCF07-DCFB-3A03-9CC9-6DD3709974C6> /usr/lib/system/libsystem_coretls.dylib
    0x7fffa24e3000 -     0x7fffa24e9fff  libsystem_dnssd.dylib (765.50.9) <CC960215-0B1B-3822-A13A-3DDE96FA796F> /usr/lib/system/libsystem_dnssd.dylib
    0x7fffa24ea000 -     0x7fffa2513ff7  libsystem_info.dylib (503.50.4) <611DB84C-BF70-3F92-8702-B9F28A900920> /usr/lib/system/libsystem_info.dylib
    0x7fffa2514000 -     0x7fffa2536ff7  libsystem_kernel.dylib (3789.60.15) <555363A6-14CC-3AA4-834F-9963B5616882> /usr/lib/system/libsystem_kernel.dylib
    0x7fffa2537000 -     0x7fffa257efe7  libsystem_m.dylib (3121.6) <86D499B5-BBDC-3D3B-8A4E-97AE8E6672A4> /usr/lib/system/libsystem_m.dylib
    0x7fffa257f000 -     0x7fffa259dff7  libsystem_malloc.dylib (116.50.8) <A3D15F17-99A6-3367-8C7E-4280E8619C95> /usr/lib/system/libsystem_malloc.dylib
    0x7fffa259e000 -     0x7fffa25f7ffb  libsystem_network.dylib (856.60.1) <369D0221-56CA-3C3E-9EDE-94B41CAE77B7> /usr/lib/system/libsystem_network.dylib
    0x7fffa25f8000 -     0x7fffa2601ff3  libsystem_networkextension.dylib (563.60.2) <B021F2B3-8A75-3633-ABB0-FC012B8E9B0C> /usr/lib/system/libsystem_networkextension.dylib
    0x7fffa2602000 -     0x7fffa260bff3  libsystem_notify.dylib (165.20.1) <B8160190-A069-3B3A-BDF6-2AA408221FAE> /usr/lib/system/libsystem_notify.dylib
    0x7fffa260c000 -     0x7fffa2614fe7  libsystem_platform.dylib (126.50.8) <897462FD-B318-321B-A554-E61982630F7E> /usr/lib/system/libsystem_platform.dylib
    0x7fffa2615000 -     0x7fffa261fff7  libsystem_pthread.dylib (218.60.3) <B8FB5E20-3295-39E2-B5EB-B464D1D4B104> /usr/lib/system/libsystem_pthread.dylib
    0x7fffa2620000 -     0x7fffa2623ff7  libsystem_sandbox.dylib (592.60.1) <DC780631-BD23-36B1-9376-668619E18D25> /usr/lib/system/libsystem_sandbox.dylib
    0x7fffa2624000 -     0x7fffa2625ff3  libsystem_secinit.dylib (24.50.4) <F78B847B-3565-3E4B-98A6-F7AD40392E2D> /usr/lib/system/libsystem_secinit.dylib
    0x7fffa2626000 -     0x7fffa262dffb  libsystem_symptoms.dylib (532.50.47) <3390E07C-C1CE-348F-ADBD-2C5440B45EAA> /usr/lib/system/libsystem_symptoms.dylib
    0x7fffa262e000 -     0x7fffa2641ff7  libsystem_trace.dylib (518.60.2) <6B145B10-5874-3E89-90CD-D370DB475BA1> /usr/lib/system/libsystem_trace.dylib
    0x7fffa2642000 -     0x7fffa2647ffb  libunwind.dylib (35.3) <3D50D8A8-C460-334D-A519-2DA841102C6B> /usr/lib/system/libunwind.dylib
    0x7fffa2648000 -     0x7fffa2671ff7  libxpc.dylib (972.60.1) <8410DD97-B62B-3E2E-8781-BAA99018D079> /usr/lib/system/libxpc.dylib

External Modification Summary:
  Calls made by other processes targeting this process:
    task_for_pid: 0
    thread_create: 0
    thread_set_state: 0
  Calls made by this process:
    task_for_pid: 0
    thread_create: 0
    thread_set_state: 0
  Calls made by all processes on this machine:
    task_for_pid: 77820
    thread_create: 0
    thread_set_state: 0

VM Region Summary:
ReadOnly portion of Libraries: Total=209.9M resident=0K(0%) swapped_out_or_unallocated=209.9M(100%)
Writable regions: Total=1.2G written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=1.2G(100%)
 
                                  VIRTUAL   REGION 
REGION TYPE                          SIZE    COUNT (non-coalesced) 
===========                       =======  ======= 
Dispatch continuations              16.0M        2 
JS JIT generated code              128.0M        5 
JS JIT generated code (reserved)   896.0M        2         reserved VM address space (unallocated)
Kernel Alloc Once                      8K        2 
MALLOC                              56.2M       10 
MALLOC guard page                     16K        4 
STACK GUARD                           60K       16 
Stack                               71.1M       16 
WebKit Malloc                       24.2M       44 
__DATA                              9704K      141 
__LINKEDIT                         120.2M        5 
__TEXT                              89.6M      142 
__UNICODE                            556K        2 
shared memory                         20K        5 
===========                       =======  ======= 
TOTAL                                1.4G      382 
TOTAL, minus reserved VM space     515.4M      382

[Ryan Haddad]

The Release JSC bot hit this today:
https://build.webkit.org/builders/Apple%20Sierra%20Release%20JSC%20%28Tests%29/builds/1366

[Ryan Haddad]

Created attachment 310402 [details]
Crash log

[Radar WebKit Bug Importer]

<rdar://problem/32256640>