Description

This is a slightly common Mac crash that has occurred since 4.17.1. Users have not provided any descriptions of their actions when the crash occurred.

Callstack from Log

[2017.09.28-15.29.17:473][346]LogModuleManager: Shutting down and abandoning module SandboxFile (4)
[2017.09.28-15.29.17:473][346]LogModuleManager: Shutting down and abandoning module PakFile (2)
[2017.09.28-15.29.17:509][346]LogMac: === Critical error: ===
SIGSEGV: invalid attempt to access memory at address 0x18

[2017.09.28-15.29.17:509][346]LogMac: TRawMessageHandler<FTargetDeviceServicePong, FTargetDeviceProxyManager>::HandleMessage(TSharedRef<IMessageContext, (ESPMode)1> const&) Address = 0x1a835e13 (filename not found) [in UE4Editor-TargetDeviceServices.dylib]
FMessageEndpoint::ProcessMessage(TSharedRef<IMessageContext, (ESPMode)1> const&) Address = 0x1a82fcce (filename not found) [in UE4Editor-TargetDeviceServices.dylib]
FMessageDispatchTask::DoTask(ENamedThreads::Type, TRefCountPtr<FGraphEvent> const&) Address = 0x1383c0c4 (filename not found) [in UE4Editor-Messaging.dylib]
TGraphTask<FMessageDispatchTask>::ExecuteTask(TArray<FBaseGraphTask*, FDefaultAllocator>&, ENamedThreads::Type) Address = 0x13852465 (filename not found) [in UE4Editor-Messaging.dylib]
FNamedTaskThread::ProcessTasksNamedThread(int, bool) Address = 0x419d78f  (filename not found) [in UE4Editor-Core.dylib]
FNamedTaskThread::ProcessTasksUntilQuit(int) Address = 0x419c798  (filename not found) [in UE4Editor-Core.dylib]
FTaskGraphImplementation::ProcessThreadUntilRequestReturn(ENamedThreads::Type) Address = 0x4198521  (filename not found) [in UE4Editor-Core.dylib]
FTaskGraphImplementation::WaitUntilTasksComplete(TArray<TRefCountPtr<FGraphEvent>, TInlineAllocator<4u, FDefaultAllocator> > const&, ENamedThreads::Type) Address = 0x4198da6  (filename not found) [in UE4Editor-Core.dylib]
FTaskGraphInterface::WaitUntilTaskCompletes(TRefCountPtr<FGraphEvent> const&, ENamedThreads::Type) Address = 0x41a3ca3  (filename not found) [in UE4Editor-Core.dylib]
DirectStatsCommand(wchar_t const*, bool, FOutputDevice*) Address = 0x450e622  (filename not found) [in UE4Editor-Core.dylib]
FThreadStats::StopThread() Address = 0x4518755  (filename not found) [in UE4Editor-Core.dylib]
FEngineLoop::Exit() Address = 0x407b7f0  (filename not found) [in UE4Editor]
GuardedMain(wchar_t const*) Address = 0x407bc40  (filename not found) [in UE4Editor]
-[UE4AppDelegate runGameThread:] Address = 0x40895d0  (filename not found) [in UE4Editor]
-[FCocoaGameThread main] Address = 0x434d446  (filename not found) [in UE4Editor-Core.dylib]
__NSThread__start__() Address = 0x964fc8ad (filename not found) [in Foundation]
_pthread_body() Address = 0xaa47a93b (filename not found) [in libsystem_pthread.dylib]
_pthread_body() Address = 0xaa47a887 (filename not found) [in libsystem_pthread.dylib]
thread_start() Address = 0xaa47a08d (filename not found) [in libsystem_pthread.dylib]
Steps to Reproduce

repro steps currently unknown

Callstack
SEGV_MAPERR at 0x18

UE4Editor-TargetDeviceServices.dylib!TRawMessageHandler<FTargetDeviceServicePong, FTargetDeviceProxyManager>::HandleMessage(TSharedRef<IMessageContext,()
UE4Editor-TargetDeviceServices.dylib!FMessageEndpoint::ProcessMessage(TSharedRef<IMessageContext,()
UE4Editor-Messaging.dylib!FMessageDispatchTask::DoTask()
UE4Editor-Messaging.dylib!TGraphTask<FMessageDispatchTask>::ExecuteTask()
UE4Editor-Core.dylib!FNamedTaskThread::ProcessTasksNamedThread()
UE4Editor-Core.dylib!FNamedTaskThread::ProcessTasksUntilQuit()
UE4Editor-Core.dylib!FTaskGraphImplementation::ProcessThreadUntilRequestReturn()
UE4Editor-Core.dylib!FTaskGraphImplementation::WaitUntilTasksComplete()
UE4Editor-Core.dylib!FTaskGraphInterface::WaitUntilTaskCompletes()
UE4Editor-Core.dylib!DirectStatsCommand()
UE4Editor-Core.dylib!FThreadStats::StopThread()
UE4Editor!FEngineLoop::Exit()
UE4Editor!GuardedMain()
UE4Editor!<Unknown>
UE4Editor-Core.dylib!<Unknown>
Foundation!Unknown()
libsystem_pthread.dylib!<Unknown>
libsystem_pthread.dylib!<Unknown>
libsystem_pthread.dylib!<Unknown>

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Duplicate
ComponentPlatform - Mac
Affects Versions4.17.14.17.2
CreatedOct 5, 2017
ResolvedFeb 18, 2019
UpdatedFeb 18, 2019