#11232·NativeScript

iOS Simulator crash with EXC_BAD_ACCESS (SIGSEGV) in InspectorServer.mm on macOS 26.5 Apple Silicon

Author: jefripunzaCreated May 29, 2026Updated Jun 1, 2026

Labelsquestionin progress

Issue Description

Hi NativeScript team,

I'm experiencing a crash on iOS Simulator when running a NativeScript app on Apple Silicon.

The application crashes with:

EXC_BAD_ACCESS (SIGSEGV)
KERN_INVALID_ADDRESS at 0x0000000000000000

The crash seems related to:

txt

InspectorServer.mm:81
v8_inspector::InspectorServer::Init(...)

and specifically:

txt

std::__1::basic_string<char>::basic_string(char const*)
_platform_strlen

This indicates a possible null pointer being passed into std::string.

Environment

NativeScript iOS runtime: (please fill your runtime version)
macOS: 26.5 (25F71)
Hardware: Apple M4 (Mac16,1)
Xcode: (please fill your Xcode version)
iOS Simulator
Architecture: ARM64

Crash Summary

txt

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000000
Termination Reason: SIGNAL 11 Segmentation fault: 11

Faulting thread:

txt

Thread 11 Crashed:: Dispatch queue: com.apple.libdispatch-io.opq

Relevant stack trace:

txt

0   libsystem_platform.dylib       _platform_strlen + 4
1   NativeScript                   std::__1::__constexpr_strlen(char const*)
2   NativeScript                   std::__1::char_traits<char>::length(char const*)
3   NativeScript                   std::__1::basic_string<char>::basic_string(char const*)
4   NativeScript                   invocation function for block in
                                    v8_inspector::InspectorServer::Init(...)
                                    InspectorServer.mm:81

Additional Notes

The app launches successfully, but after some time it crashes inside the NativeScript runtime while running in the iOS Simulator.

The crash appears to happen in an async dispatch queue:

txt

Dispatch queue: com.apple.libdispatch-io.opq

I suspect a null C-string is being converted into std::string inside InspectorServer.mm.

Full Crash Report

-------------------------------------
Translated Report (Full Report Below)
-------------------------------------
Process:             myCommerce [73611]
Path:                /Users/USER/Library/Developer/CoreSimulator/Devices/DD79C03D-2C73-4CB1-A1C0-F132346C02A2/data/Containers/Bundle/Application/9FA6E011-7312-46CE-A474-8049E232A67D/myCommerce.app/myCommerce
Identifier:          org.nativescript.myCommerce
Version:             1.0.0 (1.0.0)
Code Type:           ARM-64 (Native)
Role:                Foreground
Parent Process:      launchd_sim [25326]
Coalition:           com.apple.CoreSimulator.SimDevice.DD79C03D-2C73-4CB1-A1C0-F132346C02A2 [4904]
Responsible Process: SimulatorTrampoline [10939]
User ID:             501

Date/Time:           2026-05-29 09:22:05.3991 +0700
Launch Time:         2026-05-29 09:14:01.2405 +0700
Hardware Model:      Mac16,1
OS Version:          macOS 26.5 (25F71)
Release Type:        User

Crash Reporter Key:  9EBFC762-FC4D-FEF7-A94B-A5F9956702FF
Incident Identifier: 74AA9F8C-026C-4CB3-8239-C755CDBDA80B

Sleep/Wake UUID:       1A2759E2-6ADF-45C5-AB92-5EB4124DA1A7

Time Awake Since Boot: 40000 seconds
Time Since Wake:       35953 seconds

System Integrity Protection: enabled

Triggered by Thread: 11, Dispatch Queue: com.apple.libdispatch-io.opq

Exception Type:    EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000000
Exception Codes:   0x0000000000000001, 0x0000000000000000

Termination Reason:  Namespace SIGNAL, Code 11, Segmentation fault: 11
Terminating Process: exc handler [73611]


VM Region Info: 0 is not in any region.  Bytes before following region: 4335878144
      REGION TYPE                    START - END         [ VSIZE] PRT/MAX SHRMOD  REGION DETAIL
      UNUSED SPACE AT START
--->  
      __TEXT                      102704000-102714000    [   64K] r-x/r-x SM=COW  /Users/USER/Library/Developer/CoreSimulator/Devices/DD79C03D-2C73-4CB1-A1C0-F132346C02A2/data/Containers/Bundle/Application/9FA6E011-7312-46CE-A474-8049E232A67D/myCommerce.app/myCommerce

Thread 0::  Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib        	       0x103410b70 mach_msg2_trap + 8
1   libsystem_kernel.dylib        	       0x103421e5c mach_msg2_internal + 72
2   libsystem_kernel.dylib        	       0x103418c44 mach_msg_overwrite + 484
3   libsystem_kernel.dylib        	       0x103410ef0 mach_msg + 20
4   CoreFoundation                	       0x1804227c0 __CFRunLoopServiceMachPort + 156
5   CoreFoundation                	       0x180421978 __CFRunLoopRun + 1128
6   CoreFoundation                	       0x18041c904 _CFRunLoopRunSpecificWithOptions + 496
7   GraphicsServices              	       0x1933599c0 GSEventRunModal + 116
8   UIKitCore                     	       0x1864a54cc -[UIApplication _run] + 776
9   UIKitCore                     	       0x186b9f910 UIApplicationMain + 120
10  NativeScript                  	       0x1070d8044 ffi_call_SYSV + 68
11  NativeScript                  	       0x1070d5bc0 ffi_call_int + 972
12  NativeScript                  	       0x1070ba41c tns::Interop::CallFunctionInternal(tns::MethodCall&) + 364 (Interop.mm:1566)
13  NativeScript                  	       0x107076f78 tns::MetadataBuilder::CFunctionCallback(v8::FunctionCallbackInfo<v8::Value> const&)::$_2::operator()() const + 560 (MetadataBuilder.mm:887) [inlined]
14  NativeScript                  	       0x107076f78 decltype(std::declval<tns::MetadataBuilder::CFunctionCallback(v8::FunctionCallbackInfo<v8::Value> const&)::$_2&>()()) std::__1::__invoke[abi:ue170006]<tns::MetadataBuilder::CFunctionCallback(v8::FunctionCallbackInfo<v8::Value> const&)::$_2&>(tns::MetadataBuilder::CFunctionCallback(v8::FunctionCallbackInfo<v8::Value> const&)::$_2&) + 560 (invoke.h:340) [inlined]
15  NativeScript                  	       0x107076f78 void std::__1::__invoke_void_return_wrapper<void, true>::__call[abi:ue170006]<tns::MetadataBuilder::CFunctionCallback(v8::FunctionCallbackInfo<v8::Value> const&)::$_2&>(tns::MetadataBuilder::CFunctionCallback(v8::FunctionCallbackInfo<v8::Value> const&)::$_2&) + 560 (invoke.h:415) [inlined]
16  NativeScript                  	       0x107076f78 std::__1::__function::__alloc_func<tns::MetadataBuilder::CFunctionCallback(v8::FunctionCallbackInfo<v8::Value> const&)::$_2, std::__1::allocator<tns::MetadataBuilder::CFunctionCallback(v8::FunctionCallbackInfo<v8::Value> const&)::$_2>, void ()>::operator()[abi:ue170006]() + 560 (function.h:193) [inlined]
17  NativeScript                  	       0x107076f78 std::__1::__function::__func<tns::MetadataBuilder::CFunctionCallback(v8::FunctionCallbackInfo<v8::Value> const&)::$_2, std::__1::allocator<tns::MetadataBuilder::CFunctionCallback(v8::FunctionCallbackInfo<v8::Value> const&)::$_2>, void ()>::operator()() + 596 (function.h:364)
18  NativeScript                  	       0x1070c3bb0 std::__1::__function::__value_func<void ()>::operator()[abi:ue170006]() const + 20 (function.h:518) [inlined]
19  NativeScript                  	       0x1070c3bb0 std::__1::function<void ()>::operator()() const + 20 (function.h:1169) [inlined]
20  NativeScript                  	       0x1070c3bb0 tns::Tasks::Drain() + 92 (Tasks.cpp:13)
21  myCommerce                    	       0x102705a68 main + 688 (main.m:61)
22  dyld_sim                      	       0x10335f0e4 start_sim + 20
23  dyld                          	       0x1034c7e00 start + 6992

Thread 1:: V8 DefaultWorke
0   libsystem_kernel.dylib        	       0x10341402c __psynch_cvwait + 8
1   libsystem_pthread.dylib       	       0x103696b00 _pthread_cond_wait + 972
2   NativeScript                  	       0x1070f89d8 v8::platform::DelayedTaskQueue::GetNext() + 592
3   NativeScript                  	       0x1070f8418 v8::platform::DefaultWorkerThreadsTaskRunner::WorkerThread::Run() + 44
4   NativeScript                  	       0x1070ee7cc v8::base::ThreadEntry(void*) + 100
5   libsystem_pthread.dylib       	       0x10369663c _pthread_start + 104
6   libsystem_pthread.dylib       	       0x103691a34 thread_start + 8

Thread 2:: V8 DefaultWorke
0   libsystem_kernel.dylib        	       0x10341402c __psynch_cvwait + 8
1   libsystem_pthread.dylib       	       0x103696b00 _pthread_cond_wait + 972
2   NativeScript                  	       0x1070f89d8 v8::platform::DelayedTaskQueue::GetNext() + 592
3   NativeScript                  	       0x1070f8418 v8::platform::DefaultWorkerThreadsTaskRunner::WorkerThread::Run() + 44
4   NativeScript                  	       0x1070ee7cc v8::base::ThreadEntry(void*) + 100
5   libsystem_pthread.dylib       	       0x10369663c _pthread_start + 104
6   libsystem_pthread.dylib       	       0x103691a34 thread_start + 8

Thread 3:: V8 DefaultWorke
0   libsystem_kernel.dylib        	       0x10341402c __psynch_cvwait + 8
1   libsystem_pthread.dylib       	       0x103696b00 _pthread_cond_wait + 972
2   NativeScript                  	       0x1070f89d8 v8::platform::DelayedTaskQueue::GetNext() + 592
3   NativeScript                  	       0x1070f8418 v8::platform::DefaultWorkerThreadsTaskRunner::WorkerThread::Run() + 44
4   NativeScript                  	       0x1070ee7cc v8::base::ThreadEntry(void*) + 100
5   libsystem_pthread.dylib       	       0x10369663c _pthread_start + 104
6   libsystem_pthread.dylib       	       0x103691a34 thread_start + 8

Thread 4:: V8 DefaultWorke
0   libsystem_kernel.dylib        	       0x10341402c __psynch_cvwait + 8
1   libsystem_pthread.dylib       	       0x103696b00 _pthread_cond_wait + 972
2   NativeScript                  	       0x1070f89d8 v8::platform::DelayedTaskQueue::GetNext() + 592
3   NativeScript                  	       0x1070f8418 v8::platform::DefaultWorkerThreadsTaskRunner::WorkerThread::Run() + 44
4   NativeScript                  	       0x1070ee7cc v8::base::ThreadEntry(void*) + 100
5   libsystem_pthread.dylib       	       0x10369663c _pthread_start + 104
6   libsystem_pthread.dylib       	       0x103691a34 thread_start + 8

Thread 5:: V8 DefaultWorke
0   libsystem_kernel.dylib        	       0x10341402c __psynch_cvwait + 8
1   libsystem_pthread.dylib       	       0x103696b00 _pthread_cond_wait + 972
2   NativeScript                  	       0x1070f89d8 v8::platform::DelayedTaskQueue::GetNext() + 592
3   NativeScript                  	       0x1070f8418 v8::platform::DefaultWorkerThreadsTaskRunner::WorkerThread::Run() + 44
4   NativeScript                  	       0x1070ee7cc v8::base::ThreadEntry(void*) + 100
5   libsystem_pthread.dylib       	       0x10369663c _pthread_start + 104
6   libsystem_pthread.dylib       	       0x103691a34 thread_start + 8

Thread 6:: V8 DefaultWorke
0   libsystem_kernel.dylib        	       0x10341402c __psynch_cvwait + 8
1   libsystem_pthread.dylib       	       0x103696b00 _pthread_cond_wait + 972
2   NativeScript                  	       0x1070f89d8 v8::platform::DelayedTaskQueue::GetNext() + 592
3   NativeScript                  	       0x1070f8418 v8::platform::DefaultWorkerThreadsTaskRunner::WorkerThread::Run() + 44
4   NativeScript                  	       0x1070ee7cc v8::base::ThreadEntry(void*) + 100
5   libsystem_pthread.dylib       	       0x10369663c _pthread_start + 104
6   libsystem_pthread.dylib       	       0x103691a34 thread_start + 8

Thread 7:: V8 DefaultWorke
0   libsystem_kernel.dylib        	       0x10341402c __psynch_cvwait + 8
1   libsystem_pthread.dylib       	       0x103696b00 _pthread_cond_wait + 972
2   NativeScript                  	       0x1070f89d8 v8::platform::DelayedTaskQueue::GetNext() + 592
3   NativeScript                  	       0x1070f8418 v8::platform::DefaultWorkerThreadsTaskRunner::WorkerThread::Run() + 44
4   NativeScript                  	       0x1070ee7cc v8::base::ThreadEntry(void*) + 100
5   libsystem_pthread.dylib       	       0x10369663c _pthread_start + 104
6   libsystem_pthread.dylib       	       0x103691a34 thread_start + 8

Thread 8:: V8 DefaultWorke
0   libsystem_kernel.dylib        	       0x10341402c __psynch_cvwait + 8
1   libsystem_pthread.dylib       	       0x103696b00 _pthread_cond_wait + 972
2   NativeScript                  	       0x1070f89d8 v8::platform::DelayedTaskQueue::GetNext() + 592
3   NativeScript                  	       0x1070f8418 v8::platform::DefaultWorkerThreadsTaskRunner::WorkerThread::Run() + 44
4   NativeScript                  	       0x1070ee7cc v8::base::ThreadEntry(void*) + 100
5   libsystem_pthread.dylib       	       0x10369663c _pthread_start + 104
6   libsystem_pthread.dylib       	       0x103691a34 thread_start + 8

Thread 9:: V8 DefaultWorke
0   libsystem_kernel.dylib        	       0x10341402c __psynch_cvwait + 8
1   libsystem_pthread.dylib       	       0x103696b00 _pthread_cond_wait + 972
2   NativeScript                  	       0x1070f89d8 v8::platform::DelayedTaskQueue::GetNext() + 592
3   NativeScript                  	       0x1070f8418 v8::platform::DefaultWorkerThreadsTaskRunner::WorkerThread::Run() + 44
4   NativeScript                  	       0x1070ee7cc v8::base::ThreadEntry(void*) + 100
5   libsystem_pthread.dylib       	       0x10369663c _pthread_start + 104
6   libsystem_pthread.dylib       	       0x103691a34 thread_start + 8

Thread 10:: com.apple.uikit.eventfetch-thread
0   libsystem_kernel.dylib        	       0x103410b70 mach_msg2_trap + 8
1   libsystem_kernel.dylib        	       0x103421e5c mach_msg2_internal + 72
2   libsystem_kernel.dylib        	       0x103418c44 mach_msg_overwrite + 484
3   libsystem_kernel.dylib        	       0x103410ef0 mach_msg + 20
4   CoreFoundation                	       0x1804227c0 __CFRunLoopServiceMachPort + 156
5   CoreFoundation                	       0x180421978 __CFRunLoopRun + 1128
6   CoreFoundation                	       0x18041c904 _CFRunLoopRunSpecificWithOptions + 496
7   Foundation                    	       0x18112fa4c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 208
8   Foundation                    	       0x18112fc68 -[NSRunLoop(NSRunLoop) runUntilDate:] + 60
9   UIKitCore                     	       0x1861d7ad4 -[UIEventFetcher threadMain] + 404
10  Foundation                    	       0x181154edc __NSThread__start__ + 716
11  libsystem_pthread.dylib       	       0x10369663c _pthread_start + 104
12  libsystem_pthread.dylib       	       0x103691a34 thread_start + 8

Thread 11 Crashed::  Dispatch queue: com.apple.libdispatch-io.opq
0   libsystem_platform.dylib      	       0x1035e89a4 _platform_strlen + 4
1   NativeScript                  	       0x1070160f0 std::__1::__constexpr_strlen[abi:ue170006](char const*) + 8 (constexpr_c_functions.h:49) [inlined]
2   NativeScript                  	       0x1070160f0 std::__1::char_traits<char>::length[abi:ue170006](char const*) + 8 (char_traits.h:222) [inlined]
3   NativeScript                  	       0x1070160f0 std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>::basic_string[abi:ue170006]<0>(char const*) + 36 (string:940)
4   NativeScript                  	       0x10707ad6c std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>::basic_string[abi:ue170006]<0>(char const*) + 8 (string:938) [inlined]
5   NativeScript                  	       0x10707ad6c invocation function for block in v8_inspector::InspectorServer::Init(std::__1::function<void (std::__1::function<void (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>)>)>, std::__1::function<void (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>)>) + 136 (InspectorServer.mm:81)
6   libdispatch.dylib             	       0x1801b6790 ___dispatch_operation_deliver_data_block_invoke + 140
7   libdispatch.dylib             	       0x1801866a0 _dispatch_call_block_and_release + 24
8   libdispatch.dylib             	       0x1801a0e98 _dispatch_client_callout + 12
9   libdispatch.dylib             	       0x18018f724 _dispatch_lane_serial_drain + 984
10  libdispatch.dylib             	       0x1801901e8 _dispatch_lane_invoke + 396
11  libdispatch.dylib             	       0x18018adf8 _dispatch_continuation_pop + 152
12  libdispatch.dylib             	       0x18018a280 _dispatch_async_redirect_invoke + 852
13  libdispatch.dylib             	       0x1801994d4 _dispatch_root_queue_drain + 328
14  libdispatch.dylib             	       0x180199eb0 _dispatch_worker_thread2 + 252
15  libsystem_pthread.dylib       	       0x103692bec _pthread_wqthread + 228
16  libsystem_pthread.dylib       	       0x103691a28 start_wqthread + 8

Thread 12:


Thread 11 crashed with ARM Thread State (64-bit):
    x0: 0x0000000000000000   x1: 0x0000000000000000   x2: 0x000000000000d85c   x3: 0x0000000000000000
    x4: 0x0000000000000000   x5: 0x000000016e206200   x6: 0x000000010443e428   x7: 0x0000000000007ddd
    x8: 0x05cb3a3f779b0047   x9: 0x05cb3a3f779b0047  x10: 0x05cb3a3f779b0047  x11: 0x0000000000000000
   x12: 0x0000000000000001  x13: 0x000000000000dc00  x14: 0x00000000fca02400  x15: 0x0000000000000002
   x16: 0x00000001035e89a0  x17: 0x00000001805af85c  x18: 0x0000000000000000  x19: 0x000000016e206bd8
   x20: 0x0000000105e2aca0  x21: 0x0000000000000000  x22: 0x000000010443e400  x23: 0x0000000105633700
   x24: 0x0000000004004000  x25: 0x00000001143b7cc0  x26: 0x00000001143b7c40  x27: 0x0000000000000000
   x28: 0x0000000000030000   fp: 0x000000016e206bc0   lr: 0x00000001070160f0
    sp: 0x000000016e206b90   pc: 0x00000001035e89a4 cpsr: 0x60000000
   far: 0x0000000000000000  esr: 0x92000006 (Data Abort) byte read Translation fault

Binary Images:
       0x102704000 -        0x102713fff org.nativescript.myCommerce (1.0.0) <7f1213e1-af8d-3ea6-b1d3-8c57a649f716> /Users/USER/Library/Developer/CoreSimulator/Devices/DD79C03D-2C73-4CB1-A1C0-F132346C02A2/data/Containers/Bundle/Application/9FA6E011-7312-46CE-A474-8049E232A67D/myCommerce.app/myCommerce
       0x103354000 -        0x1033a3fff dyld_sim (*) <ba544d9a-46ab-3c59-a00f-aba1479d2079> /Volumes/VOLUME/*/dyld_sim
       0x106fec000 -        0x107ceffff org.nativescript.NativeScript (1.0) <09bc68c9-81dd-3f1c-888e-45385c596568> /Users/USER/Library/Developer/CoreSimulator/Devices/DD79C03D-2C73-4CB1-A1C0-F132346C02A2/data/Containers/Bundle/Application/9FA6E011-7312-46CE-A474-8049E232A67D/myCommerce.app/Frameworks/NativeScript.framework/NativeScript
       0x103300000 -        0x10330ffff org.nativescript.TKLiveSync (1.0) <f5e8be9e-3c0e-3c9a-83a5-5130cd2bf122> /Users/USER/Library/Developer/CoreSimulator/Devices/DD79C03D-2C73-4CB1-A1C0-F132346C02A2/data/Containers/Bundle/Application/9FA6E011-7312-46CE-A474-8049E232A67D/myCommerce.app/Frameworks/TKLiveSync.framework/TKLiveSync
       0x1032e0000 -        0x1032e3fff org.nativescript.NSCWinterTC (1.0) <755efec1-d340-3fad-aef7-dee029f2fc9e> /Users/USER/Library/Developer/CoreSimulator/Devices/DD79C03D-2C73-4CB1-A1C0-F132346C02A2/data/Containers/Bundle/Application/9FA6E011-7312-46CE-A474-8049E232A67D/myCommerce.app/Frameworks/NSCWinterTC.framework/NSCWinterTC
       0x1032bc000 -        0x1032c3fff org.nativescript.TNSWidgets (1.0) <66942c92-e71d-319d-987c-8bf81755ac68> /Users/USER/Library/Developer/CoreSimulator/Devices/DD79C03D-2C73-4CB1-A1C0-F132346C02A2/data/Containers/Bundle/Application/9FA6E011-7312-46CE-A474-8049E232A67D/myCommerce.app/Frameworks/TNSWidgets.framework/TNSWidgets
       0x103324000 -        0x103327fff libswiftUIKit.dylib (*) <710be927-bac3-3b9e-b7ce-dbe0c5e8e2a5> /Volumes/VOLUME/*/libswiftUIKit.dylib
       0x1035e8000 -        0x1035f3fff libsystem_platform.dylib (*) <0831b8d2-190f-31fc-9eb6-ea8ba11fe47b> /usr/lib/system/libsystem_platform.dylib
       0x103410000 -        0x10344bfff libsystem_kernel.dylib (*) <856091df-df82-3985-9695-28eac306bcb5> /usr/lib/system/libsystem_kernel.dylib
       0x103690000 -        0x10369ffff libsystem_pthread.dylib (*) <1e522024-387b-3d18-81ca-f4559198954b> /usr/lib/system/libsystem_pthread.dylib
       0x1040f0000 -        0x104147fff com.apple.SensorKit (972.0.21) <29c4ace5-683d-3d93-8b

Source: NativeScript/NativeScript

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