C++ Exception - std::__1::system_error

[ghost]

Is this a bug report?

Yes

Experiencing some crashes (see log below) with the error "C++ Exception - std::__1::system_error"

Happening on iOS 9-11 and device iPhone 5 and 6.

"react": "16.0.0-beta.5",
"react-native": "0.49.3",

Just upgraded to react 0.51.0, and react 16.2.0, which I'll get reports from once app is live with the update.

Does anyone experience something similar? It has happened once from 4 different users.

Crash report:

---

OS Version: iOS 9.3.5 (13G36)
Report Version: 104

Exception Type: EXC_CRASH (SIGABRT)
Crashed Thread: 11

Application Specific Information:
std::__1::system_error

Thread 0
0 CryptoRankr 0x2a0138 hidden#26511
1 libsystem_c.dylib 0x40cd59bd __cxa_finalize_ranges
2 libsystem_c.dylib 0x40c94c8d exit
3 UIKit 0x4a1168d3 -[UIApplication _terminateWithStatus:]
4 UIKit 0x4a32f97d __102-[UIApplication _handleApplicationDeactivationWithScene:shouldForceExit:transitionContext:completion:]_block_invoke2019
5 UIKit 0x4a33249d _runAfterCACommitDeferredBlocks
6 UIKit 0x4a33e7af _cleanUpAfterCAFlushAndRunDeferredBlocks
7 UIKit 0x4a07a799 _afterCACommitHandler
8 CoreFoundation 0x413a22b1 CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION
9 CoreFoundation 0x413a05a7 __CFRunLoopDoObservers
10 CoreFoundation 0x413a09e5 __CFRunLoopRun
11 CoreFoundation 0x412ef1c9 CFRunLoopRunSpecific
12 CoreFoundation 0x412eefbd CFRunLoopRunInMode
13 GraphicsServices 0x43f27af9 GSEventRunModal
14 UIKit 0x4a0f0435 UIApplicationMain
15 CryptoRankr 0x9e337

Thread 1
0 libsystem_kernel.dylib 0x40de42f8 kevent_qos
1 libdispatch.dylib 0x40c0a837 _dispatch_mgr_invoke
2 libdispatch.dylib 0x40bfc917 _dispatch_mgr_thread

Thread 2 name: com.twitter.crashlytics.ios.MachExceptionServer
0 libsystem_kernel.dylib 0x40dce8a8 mach_msg_trap
1 libsystem_kernel.dylib 0x40dce6a9 mach_msg
2 CryptoRankr 0xa1dc5
3 libsystem_pthread.dylib 0x40f3ec7f _pthread_body
4 libsystem_pthread.dylib 0x40f3ebf3 _pthread_start

Thread 3 name: com.facebook.react.JavaScript
0 libsystem_kernel.dylib 0x40dce8a8 mach_msg_trap
1 libsystem_kernel.dylib 0x40dce6a9 mach_msg
2 CoreFoundation 0x413a26ad __CFRunLoopServiceMachPort
3 CoreFoundation 0x413a0a33 __CFRunLoopRun
4 CoreFoundation 0x412ef1c9 CFRunLoopRunSpecific
5 CoreFoundation 0x412eefbd CFRunLoopRunInMode
6 CryptoRankr 0xe52c7
7 Foundation 0x4245864d NSThread__start
8 libsystem_pthread.dylib 0x40f3ec7f _pthread_body
9 libsystem_pthread.dylib 0x40f3ebf3 _pthread_start

Thread 4 name: JavaScriptCore::Marking
0 libsystem_kernel.dylib 0x40de2998 __psynch_cvwait
1 libsystem_pthread.dylib 0x40f3e1a5 _pthread_cond_wait
2 libsystem_pthread.dylib 0x40f3f0b9 pthread_cond_wait
3 libc++.1.dylib 0x4037a69d _ZNSt3__118condition_variable4waitERNS_11unique_lockINS_5mutexEEE
4 JavaScriptCore 0x478d41d1 JSC::GCThread::waitForNextPhase()
5 JavaScriptCore 0x478d423f JSC::GCThread::gcThreadMain()
6 JavaScriptCore 0x476df431 WTF::threadEntryPoint(void*)
7 JavaScriptCore 0x476df38f WTF::wtfThreadEntryPoint(void*)
8 libsystem_pthread.dylib 0x40f3ec7f _pthread_body
9 libsystem_pthread.dylib 0x40f3ebf3 _pthread_start

Thread 5 name: com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0x40dce8a8 mach_msg_trap
1 libsystem_kernel.dylib 0x40dce6a9 mach_msg
2 CoreFoundation 0x413a26ad __CFRunLoopServiceMachPort
3 CoreFoundation 0x413a0a33 __CFRunLoopRun
4 CoreFoundation 0x412ef1c9 CFRunLoopRunSpecific
5 CoreFoundation 0x412eefbd CFRunLoopRunInMode
6 CFNetwork 0x41f1bbdf +[NSURLConnection(Loader) _resourceLoadLoop:]
7 Foundation 0x4245864d NSThread__start
8 libsystem_pthread.dylib 0x40f3ec7f _pthread_body
9 libsystem_pthread.dylib 0x40f3ebf3 _pthread_start

Thread 6 name: com.apple.CFSocket.private
0 libsystem_kernel.dylib 0x40de2eec select$DARWIN_EXTSN
1 CoreFoundation 0x413a7b51 __CFSocketManager
2 libsystem_pthread.dylib 0x40f3ec7f _pthread_body
3 libsystem_pthread.dylib 0x40f3ebf3 _pthread_start

Thread 7
0 libsystem_kernel.dylib 0x40de2ffc __semwait_signal
1 libsystem_c.dylib 0x40c94bbd nanosleep
2 libsystem_c.dylib 0x40ce4235 sleep
3 CryptoRankr 0x45c16f __cxa_throw
4 libsystem_pthread.dylib 0x40f3ec7f _pthread_body
5 libsystem_pthread.dylib 0x40f3ebf3 _pthread_start

Thread 8 name: KSCrash Exception Handler (Secondary)
0 libsystem_kernel.dylib 0x40dce8a8 mach_msg_trap
1 libsystem_kernel.dylib 0x40dce6a9 mach_msg
2 libsystem_kernel.dylib 0x40dd1b0f thread_suspend
3 CryptoRankr 0x43ab2f __cxa_throw
4 libsystem_pthread.dylib 0x40f3ec7f _pthread_body
5 libsystem_pthread.dylib 0x40f3ebf3 _pthread_start

Thread 9 name: KSCrash Exception Handler (Primary)
0 libsystem_kernel.dylib 0x40dce8a8 mach_msg_trap
1 libsystem_kernel.dylib 0x40dce6a9 mach_msg
2 CryptoRankr 0x43ab5f __cxa_throw
3 libsystem_pthread.dylib 0x40f3ec7f _pthread_body
4 libsystem_pthread.dylib 0x40f3ebf3 _pthread_start

Thread 10
0 libsystem_kernel.dylib 0x40de3864 __workq_kernreturn
1 libsystem_pthread.dylib 0x40f3ce19 _pthread_wqthread

Thread 12
0 libsystem_kernel.dylib 0x40dce8f8 semaphore_wait_trap
1 libdispatch.dylib 0x40c088af _dispatch_semaphore_wait_slow
2 libxpc.dylib 0x40f77643 xpc_connection_send_message_with_reply_sync
3 Security 0x41befa8b securityd_message_with_reply_sync
4 Security 0x41befc45 securityd_send_sync_and_do
5 Security 0x41c0faa5 __SecTrustEvaluateIfNecessary_block_invoke_2
6 Security 0x41bfe30d SecOSStatusWith
7 Security 0x41c0f8c5 __SecTrustEvaluateIfNecessary_block_invoke
8 libsystem_trace.dylib 0x40f51ee9 _os_activity_initiate
9 Security 0x41c0e7cf SecTrustEvaluateIfNecessary
10 Security 0x41c0e811 SecTrustEvaluate
11 CryptoRankr 0xcc41f
12 CryptoRankr 0xcc4a3
13 CryptoRankr 0xbd1b3
14 CryptoRankr 0xc6c5d
15 CryptoRankr 0xc1f83
16 CFNetwork 0x41fa3a09 __63-[NSURLSession delegate_didReceiveChallenge:completionHandler:]_block_invoke
17 Foundation 0x4244084d NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK
18 Foundation 0x423a187f -[NSBlockOperation main]
19 Foundation 0x42393f8f -[__NSOperationInternal _start:]
20 Foundation 0x42442b0d __NSOQSchedule_f
21 libdispatch.dylib 0x40c04e7f _dispatch_queue_drain
22 libdispatch.dylib 0x40bfde17 _dispatch_queue_invoke
23 libdispatch.dylib 0x40c0620d _dispatch_root_queue_drain
24 libdispatch.dylib 0x40c0607b _dispatch_worker_thread3
25 libsystem_pthread.dylib 0x40f3ce0d _pthread_wqthread

Thread 13
0 libsystem_kernel.dylib 0x40de3864 __workq_kernreturn
1 libsystem_pthread.dylib 0x40f3ce19 _pthread_wqthread

Thread 14
0 libsystem_kernel.dylib 0x40de3864 __workq_kernreturn
1 libsystem_pthread.dylib 0x40f3ce19 _pthread_wqthread

Thread 15
0 libsystem_kernel.dylib 0x40de3864 __workq_kernreturn
1 libsystem_pthread.dylib 0x40f3ce19 _pthread_wqthread

Thread 16
0 libsystem_kernel.dylib 0x40de2ffc __semwait_signal
1 libsystem_c.dylib 0x40c94bbd nanosleep
2 libc++.1.dylib 0x403b98f5 _ZNSt3__111this_thread9sleep_forERKNS_6chrono8durationIxNS_5ratioILx1ELx1000000000EEEEE
3 JavaScriptCore 0x47a92af9 _ZN7bmalloc4Heap8scavengeERNSt3__111unique_lockINS_11StaticMutexEEENS1_6chrono8durationIxNS1_5ratioILx1ELx1000EEEEE
4 JavaScriptCore 0x47a928e3 bmalloc::Heap::concurrentScavenge()
5 JavaScriptCore 0x47a947af bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::)()>::entryPoint()
6 JavaScriptCore 0x47a94749 bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::)()>::pthreadEntryPoint(void*)
7 libsystem_pthread.dylib 0x40f3ec7f _pthread_body
8 libsystem_pthread.dylib 0x40f3ebf3 _pthread_start

[lwinkyawmyat]

@facebook-github-bot no-template

[facebook-github-bot]

Hey @danieldelouya, thanks for posting this! It looks like your issue is missing some required information. Can you please add all the details specified in the Issue Template? This is necessary for people to be able to understand and reproduce your issue. I am going to close this, but please feel free to open a new issue with the additional information provided. Thanks!

_{How to Contribute • What to Expect from Maintainers}

[JAStanton]

@danieldelouya did upgrading solve this issue?

[rtt63]

I sadly face it using RN55
iPhone6 and 6plus

[TeruyaHaroldo]

It is happening with me too.

OS Version: iOS 12.0 (16A366)
Report Version: 104

Exception Type: EXC_CRASH (SIGABRT)
Crashed Thread: 2

Application Specific Information:
std::__1::system_error

Thread 0
0 falafreud 0x203552678 folly::Expected<long long, folly::ConversionCode> folly::detail::str_to_integral(folly::Range<char const*>*)
1 libsystem_c.dylib 0x361e7eab4 __cxa_finalize_ranges
2 libsystem_c.dylib 0x361e7edd8 exit
3 UIKitCore 0x3bb69bb74 -[UIApplication _terminateWithStatus:]
4 UIKitCore 0x3bbebbb34 __98-[__UICanvasLifecycleMonitor_Compatability deactivateEventsOnly:withContext:forceExit:completion:]_block_invoke.279
5 UIKitCore 0x3bb6a0190 _runAfterCACommitDeferredBlocks
6 UIKitCore 0x3bb68e1d0 _cleanUpAfterCAFlushAndRunDeferredBlocks
7 UIKitCore 0x3bb6bd508 _afterCACommitHandler
8 CoreFoundation 0x36276bb94 CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION
9 CoreFoundation 0x362766828 __CFRunLoopDoObservers
10 CoreFoundation 0x362766dc8 __CFRunLoopRun
11 CoreFoundation 0x3627665b8 CFRunLoopRunSpecific
12 GraphicsServices 0x366ce9584 GSEventRunModal
13 UIKitCore 0x3bb694558 UIApplicationMain
14 falafreud 0x202f4c0f8
15 libdyld.dylib 0x361d8cb94 start

Thread 1 name: com.apple.uikit.eventfetch-thread
0 libsystem_kernel.dylib 0x361ff7ed0 mach_msg_trap
1 libsystem_kernel.dylib 0x361ff73a8 mach_msg
2 CoreFoundation 0x36276bfb0 __CFRunLoopServiceMachPort
3 CoreFoundation 0x362766e4c __CFRunLoopRun
4 CoreFoundation 0x3627665b8 CFRunLoopRunSpecific
5 Foundation 0x363bec6a4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
6 Foundation 0x363bec550 -[NSRunLoop(NSRunLoop) runUntilDate:]
7 UIKitCore 0x3bb5f1ac0 -[UIEventFetcher threadMain]
8 Foundation 0x363d1f3b0 NSThread__start
9 libsystem_pthread.dylib 0x3621232fc _pthread_body
10 libsystem_pthread.dylib 0x36212325c _pthread_start

Thread 3 name: JavaScriptCore bmalloc scavenger
0 libsystem_kernel.dylib 0x362002f0c __psynch_cvwait
1 libsystem_pthread.dylib 0x36211bd48 _pthread_cond_wait$VARIANT$mp
2 libc++.1.dylib 0x360bb4568 std::__1::condition_variable::__do_timed_wait(std::__1::unique_lockstd::__1::mutex&, std::__1::chrono::time_point<std::__1::chrono::system_clock, std::__1::chrono::duration<long long, std::__1::ratio<(long)1, (long)1000000000> > >)
3 JavaScriptCore 0x370e9539c std::__1::cv_status std::__1::condition_variable::wait_until<std::__1::chrono::steady_clock, std::__1::chrono::duration<long long, std::__1::ratio<(long)1, (long)1000000000> > >(std::__1::unique_lockstd::__1::mutex&, std::__1::chrono::time_point<std::...
4 JavaScriptCore 0x370e9524c std::__1::cv_status std::__1::condition_variable_any::wait_until<std::__1::unique_lockbmalloc::Mutex, std::__1::chrono::steady_clock, std::__1::chrono::duration<long long, std::__1::ratio<(long)1, (long)1000000000> > >(std::__1::unique_lock<bmalloc::M...
5 JavaScriptCore 0x370e93ee8 bmalloc::Scavenger::threadRunLoop()
6 JavaScriptCore 0x370e935a4 bmalloc::Scavenger::threadEntryPoint(bmalloc::Scavenger*)
7 JavaScriptCore 0x370e95050 void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_deletestd::__1::__thread_struct >, void ()(bmalloc::Scavenger), bmalloc::Scavenger*> >(void*)
8 libsystem_pthread.dylib 0x3621232fc _pthread_body
9 libsystem_pthread.dylib 0x36212325c _pthread_start

Thread 4 name: WebThread
0 libsystem_kernel.dylib 0x361ff7ed0 mach_msg_trap
1 libsystem_kernel.dylib 0x361ff73a8 mach_msg
2 CoreFoundation 0x36276bfb0 __CFRunLoopServiceMachPort
3 CoreFoundation 0x362766e4c __CFRunLoopRun
4 CoreFoundation 0x3627665b8 CFRunLoopRunSpecific
5 WebCore 0x373fabba4 RunWebThread(void*)
6 libsystem_pthread.dylib 0x3621232fc _pthread_body
7 libsystem_pthread.dylib 0x36212325c _pthread_start

Thread 5 name: GAIThread
0 libsystem_kernel.dylib 0x361ff7ed0 mach_msg_trap
1 libsystem_kernel.dylib 0x361ff73a8 mach_msg
2 CoreFoundation 0x36276bfb0 __CFRunLoopServiceMachPort
3 CoreFoundation 0x362766e4c __CFRunLoopRun
4 CoreFoundation 0x3627665b8 CFRunLoopRunSpecific
5 Foundation 0x363bec6a4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
6 Foundation 0x363c28094 -[NSRunLoop(NSRunLoop) run]
7 falafreud 0x203699a4c __cxa_throw
8 Foundation 0x363d1f3b0 NSThread__start
9 libsystem_pthread.dylib 0x3621232fc _pthread_body
10 libsystem_pthread.dylib 0x36212325c _pthread_start

Thread 6 name: AVAudioSession Notify Thread
0 libsystem_kernel.dylib 0x361ff7ed0 mach_msg_trap
1 libsystem_kernel.dylib 0x361ff73a8 mach_msg
2 CoreFoundation 0x36276bfb0 __CFRunLoopServiceMachPort
3 CoreFoundation 0x362766e4c __CFRunLoopRun
4 CoreFoundation 0x3627665b8 CFRunLoopRunSpecific
5 AVFAudio 0x36e730c4c GenericRunLoopThread::Entry(void*)
6 AVFAudio 0x36e75cd34 CAPThread::Entry(CAPThread*)
7 libsystem_pthread.dylib 0x3621232fc _pthread_body
8 libsystem_pthread.dylib 0x36212325c _pthread_start

Thread 7 name: com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0x361ff7ed0 mach_msg_trap
1 libsystem_kernel.dylib 0x361ff73a8 mach_msg
2 CoreFoundation 0x36276bfb0 __CFRunLoopServiceMachPort
3 CoreFoundation 0x362766e4c __CFRunLoopRun
4 CoreFoundation 0x3627665b8 CFRunLoopRunSpecific
5 CFNetwork 0x36344be18 -[__CoreSchedulingSetRunnable runForever]
6 Foundation 0x363d1f3b0 NSThread__start
7 libsystem_pthread.dylib 0x3621232fc _pthread_body
8 libsystem_pthread.dylib 0x36212325c _pthread_start

Thread 8 name: WTF::AutomaticThread
0 libsystem_kernel.dylib 0x362002f0c __psynch_cvwait
1 libsystem_pthread.dylib 0x36211bd48 _pthread_cond_wait$VARIANT$mp
2 JavaScriptCore 0x370e7df34 WTF::ThreadCondition::timedWait(WTF::Mutex&, WTF::WallTime)
3 JavaScriptCore 0x370e650f4 WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&)
4 JavaScriptCore 0x370e3ea38 bool WTF::Condition::waitUntilWTF::Lock(WTF::Lock&, WTF::TimeWithDynamicClockType const&)
5 JavaScriptCore 0x370e3edd8 WTF::Function<void ()>::CallableWrapper<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0>::call()
6 JavaScriptCore 0x370e7c14c WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*)
7 JavaScriptCore 0x370e7d6b4 WTF::wtfThreadEntryPoint(void*)
8 libsystem_pthread.dylib 0x3621232fc _pthread_body
9 libsystem_pthread.dylib 0x36212325c _pthread_start

Thread 9 name: JSC Heap Collector Thread
0 libsystem_kernel.dylib 0x362002f0c __psynch_cvwait
1 libsystem_pthread.dylib 0x36211bd48 _pthread_cond_wait$VARIANT$mp
2 JavaScriptCore 0x370e7df34 WTF::ThreadCondition::timedWait(WTF::Mutex&, WTF::WallTime)
3 JavaScriptCore 0x370e650f4 WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&)
4 JavaScriptCore 0x370e3ea38 bool WTF::Condition::waitUntilWTF::Lock(WTF::Lock&, WTF::TimeWithDynamicClockType const&)
5 JavaScriptCore 0x370e3edd8 WTF::Function<void ()>::CallableWrapper<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0>::call()
6 JavaScriptCore 0x370e7c14c WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*)
7 JavaScriptCore 0x370e7d6b4 WTF::wtfThreadEntryPoint(void*)
8 libsystem_pthread.dylib 0x3621232fc _pthread_body
9 libsystem_pthread.dylib 0x36212325c _pthread_start

Thread 10
0 libsystem_kernel.dylib 0x362003428 __semwait_signal
1 libsystem_c.dylib 0x361e9b5d0 nanosleep
2 libsystem_c.dylib 0x361e9b3cc sleep
3 falafreud 0x20363f71c __cxa_throw
4 libsystem_pthread.dylib 0x3621232fc _pthread_body
5 libsystem_pthread.dylib 0x36212325c _pthread_start

Thread 11 name: KSCrash Exception Handler (Secondary)
0 libsystem_kernel.dylib 0x361ff7ed0 mach_msg_trap
1 libsystem_kernel.dylib 0x361ff73a8 mach_msg
2 libsystem_kernel.dylib 0x361ff36b8 thread_suspend
3 falafreud 0x20360e488 __cxa_throw
4 libsystem_pthread.dylib 0x3621232fc _pthread_body
5 libsystem_pthread.dylib 0x36212325c _pthread_start

Thread 12 name: KSCrash Exception Handler (Primary)
0 libsystem_kernel.dylib 0x361ff7ed0 mach_msg_trap
1 libsystem_kernel.dylib 0x361ff73a8 mach_msg
2 falafreud 0x20360e4b4 __cxa_throw
3 libsystem_pthread.dylib 0x3621232fc _pthread_body
4 libsystem_pthread.dylib 0x36212325c _pthread_start

Thread 13 name: com.squareup.SocketRocket.NetworkThread
0 libsystem_kernel.dylib 0x361ff7ed0 mach_msg_trap
1 libsystem_kernel.dylib 0x361ff73a8 mach_msg
2 CoreFoundation 0x36276bfb0 __CFRunLoopServiceMachPort
3 CoreFoundation 0x362766e4c __CFRunLoopRun
4 CoreFoundation 0x3627665b8 CFRunLoopRunSpecific
5 Foundation 0x363bec6a4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
6 falafreud 0x2037efbb8 __cxa_throw
7 Foundation 0x363d1f3b0 NSThread__start
8 libsystem_pthread.dylib 0x3621232fc _pthread_body
9 libsystem_pthread.dylib 0x36212325c _pthread_start

Thread 14 name: com.apple.CFSocket.private
0 libsystem_kernel.dylib 0x362003350 select$DARWIN_EXTSN
1 CoreFoundation 0x362774e00 __CFSocketManager
2 libsystem_pthread.dylib 0x3621232fc _pthread_body
3 libsystem_pthread.dylib 0x36212325c _pthread_start

Thread 15 name: com.apple.coreaudio.AQClient
0 libsystem_kernel.dylib 0x361ff7ed0 mach_msg_trap
1 libsystem_kernel.dylib 0x361ff73a8 mach_msg
2 CoreFoundation 0x36276bfb0 __CFRunLoopServiceMachPort
3 CoreFoundation 0x362766e4c __CFRunLoopRun
4 CoreFoundation 0x3627665b8 CFRunLoopRunSpecific
5 AudioToolbox 0x36a89c030 GenericRunLoopThread::Entry(void*)
6 AudioToolbox 0x36ab37b0c CAPThread::Entry(CAPThread*)
7 libsystem_pthread.dylib 0x3621232fc _pthread_body
8 libsystem_pthread.dylib 0x36212325c _pthread_start

Thread 16
0 libsystem_pthread.dylib 0x362126cfc start_wqthread

Thread 17
0 libsystem_kernel.dylib 0x362003b9c __workq_kernreturn
1 libsystem_pthread.dylib 0x362124114 _pthread_wqthread

Thread 18
0 libsystem_kernel.dylib 0x362003b9c __workq_kernreturn
1 libsystem_pthread.dylib 0x3621241d4 _pthread_wqthread

Thread 19
0 libsystem_kernel.dylib 0x362003b9c __workq_kernreturn
1 libsystem_pthread.dylib 0x3621241d4 _pthread_wqthread

Thread 20
0 libsystem_kernel.dylib 0x362003b9c __workq_kernreturn
1 libsystem_pthread.dylib 0x362124114 _pthread_wqthread

Thread 21
0 libsystem_kernel.dylib 0x362003b9c __workq_kernreturn
1 libsystem_pthread.dylib 0x362124114 _pthread_wqthread

Thread 22
0 libsystem_kernel.dylib 0x362003b9c __workq_kernreturn
1 libsystem_pthread.dylib 0x3621241d4 _pthread_wqthread

Thread 23
0 libsystem_pthread.dylib 0x362126cfc start_wqthread

Thread 24
0 libsystem_pthread.dylib 0x362126cfc start_wqthread

Thread 25
0 libsystem_kernel.dylib 0x362003b9c __workq_kernreturn
1 libsystem_pthread.dylib 0x362124114 _pthread_wqthread

Thread 26
0 libsystem_kernel.dylib 0x362003b9c __workq_kernreturn
1 libsystem_pthread.dylib 0x362124114 _pthread_wqthread

EOF