Segmentation fault when debugging a worker from vscode

[Nautigsam]

Version

19.0.1 and 19.4.0

Platform

Linux charlie 6.1.1-arch1-1 #1 SMP PREEMPT_DYNAMIC Wed, 21 Dec 2022 22:27:55 +0000 x86_64 GNU/Linux

Subsystem

No response

What steps will reproduce the bug?

• Run npm run debug on this sample repo
• Attach to this process with vscode (v1.74.2)
• Continue the execution

How often does it reproduce? Is there a required condition?

Always.

What is the expected behavior?

Run the worker code with no error.

What do you see instead?

A segmentation fault.

Additional information

This seems linked to the presence of a private class member in the worker. If I comment out the definition of the member, the segmentation fault stops occurring.

[bnoordhuis]

A segmentation fault.

Can you post the stack trace you get (if you get one)?

If you set ulimit -c unlimited you get a core dump you can open in gdb. bt prints a backtrace.

[bnoordhuis]

Oh, and please make sure you're using the latest v19.x. It's possible this particular bug is already fixed.

[Nautigsam]

With node v19.4.0. Here is the stack trace:

* thread #1, name = 'node', stop reason = signal SIGSEGV                                                                                                                                                           
  * frame #0: 0x0000000000ec8a39 node`v8::internal::ScopeIterator::Next() + 537                                                                                                                                    
    frame #1: 0x0000000000ec3348 node`v8::internal::DebugScopeIterator::Advance() + 24                                                                                                                             
    frame #2: 0x0000000001486c16 node`v8_inspector::V8DebuggerAgentImpl::currentCallFrames(std::unique_ptr<std::vector<std::unique_ptr<v8_inspector::protocol::Debugger::CallFrame, std::default_delete<v8_inspecto
r::protocol::Debugger::CallFrame> >, std::allocator<std::unique_ptr<v8_inspector::protocol::Debugger::CallFrame, std::default_delete<v8_inspector::protocol::Debugger::CallFrame> > > >, std::default_delete<std::v
ector<std::unique_ptr<v8_inspector::protocol::Debugger::CallFrame, std::default_delete<v8_inspector::protocol::Debugger::CallFrame> >, std::allocator<std::unique_ptr<v8_inspector::protocol::Debugger::CallFrame, 
std::default_delete<v8_inspector::protocol::Debugger::CallFrame> > > > > >*) + 1878                                                                                                                                
    frame #3: 0x000000000148a8d8 node`v8_inspector::V8DebuggerAgentImpl::didPause(int, v8::Local<v8::Value>, std::vector<int, std::allocator<int> > const&, v8::debug::ExceptionType, bool, v8::base::EnumSet<v8::d
ebug::BreakReason, int>) + 1096                                                                                                                                                                                    
    frame #4: 0x00000000014721d8 node`std::_Function_handler<void (v8_inspector::V8InspectorSessionImpl*), v8_inspector::V8Debugger::handleProgramBreak(v8::Local<v8::Context>, v8::Local<v8::Value>, std::vector<i
nt, std::allocator<int> > const&, v8::base::EnumSet<v8::debug::BreakReason, int>, v8::debug::ExceptionType, bool)::'lambda0'(v8_inspector::V8InspectorSessionImpl*)>::_M_invoke(std::_Any_data const&, v8_inspector
::V8InspectorSessionImpl*&&) + 152                                                                                                                                                                                 
    frame #5: 0x000000000149999c node`v8_inspector::V8InspectorImpl::forEachSession(int, std::function<void (v8_inspector::V8InspectorSessionImpl*)> const&) + 460                                                 
    frame #6: 0x000000000147477f node`v8_inspector::V8Debugger::handleProgramBreak(v8::Local<v8::Context>, v8::Local<v8::Value>, std::vector<int, std::allocator<int> > const&, v8::base::EnumSet<v8::debug::BreakR
eason, int>, v8::debug::ExceptionType, bool) + 511                                                                                                                                                                 
    frame #7: 0x00000000014748ba node`v8_inspector::V8Debugger::BreakProgramRequested(v8::Local<v8::Context>, std::vector<int, std::allocator<int> > const&, v8::base::EnumSet<v8::debug::BreakReason, int>) + 26  
    frame #8: 0x0000000000ed3aa2 node`v8::internal::Debug::OnDebugBreak(v8::internal::Handle<v8::internal::FixedArray>, v8::internal::StepAction, v8::base::EnumSet<v8::debug::BreakReason, int>) + 434            
    frame #9: 0x0000000000ed3cd8 node`v8::internal::Debug::Break(v8::internal::JavaScriptFrame*, v8::internal::Handle<v8::internal::JSFunction>) + 552                                                             
    frame #10: 0x00000000013a710d node`v8::internal::Runtime_DebugBreakOnBytecode(int, unsigned long*, v8::internal::Isolate*) + 605                                                                               
    frame #11: 0x0000000001834a79 node`Builtins_CEntry_Return2_DontSaveFPRegs_ArgvOnStack_NoBuiltinExit + 57                                                                                                       
    frame #12: 0x00000000018cf9be node`Builtins_DebugBreak4Handler + 62                                                                                                                                            
    frame #13: 0x00000000017ac6dc node`Builtins_InterpreterEntryTrampoline + 220                                                                                                                                   
    frame #14: 0x00000000017aae5c node`Builtins_JSEntryTrampoline + 92                                                                                                                                             
    frame #15: 0x00000000017aab83 node`Builtins_JSEntry + 131                                                                                                                                                      
    frame #16: 0x0000000000f2ac65 node`v8::internal::(anonymous namespace)::Invoke(v8::internal::Isolate*, v8::internal::(anonymous namespace)::InvokeParams const&) + 325
    frame #17: 0x0000000000f2bf0f node`v8::internal::Execution::Call(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::internal::Object>*) + 95
    frame #18: 0x00000000012a3bc7 node`v8::internal::SourceTextModule::RunInitializationCode(v8::internal::Isolate*, v8::internal::Handle<v8::internal::SourceTextModule>) + 247
    frame #19: 0x00000000012a7d2e node`v8::internal::SourceTextModule::FinishInstantiate(v8::internal::Isolate*, v8::internal::Handle<v8::internal::SourceTextModule>, v8::internal::ZoneForwardList<v8::internal::Handle<v8::internal::SourceTextModule> >*, unsigned int*, v8::internal::Zone*) + 3534
    frame #20: 0x000000000126378c node`v8::internal::Module::FinishInstantiate(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Module>, v8::internal::ZoneForwardList<v8::internal::Handle<v8::internal::SourceTextModule> >*, unsigned int*, v8::internal::Zone*) + 156
    frame #21: 0x000000000126380e node`v8::internal::Module::Instantiate(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Module>, v8::Local<v8::Context>, v8::MaybeLocal<v8::Module> (*)(v8::Local<v8::Context>, v8::Local<v8::String>, v8::Local<v8::FixedArray>, v8::Local<v8::Module>), v8::MaybeLocal<v8::Module> (*)(v8::Local<v8::Context>, v8::Local<v8::String>, v8::Local<v8::Module>)) + 110
    frame #22: 0x0000000000de686a node`v8::Module::InstantiateModule(v8::Local<v8::Context>, v8::MaybeLocal<v8::Module> (*)(v8::Local<v8::Context>, v8::Local<v8::String>, v8::Local<v8::FixedArray>, v8::Local<v8::Module>)) + 202
    frame #23: 0x0000000000b9197b node`node::loader::ModuleWrap::Instantiate(v8::FunctionCallbackInfo<v8::Value> const&) + 251
    frame #24: 0x0000000000e2bcb0 node`v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<false>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, unsigned long*, int) + 816
    frame #25: 0x0000000000e2d410 node`v8::internal::Builtins::InvokeApiFunction(v8::internal::Isolate*, bool, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::internal::Object>*, v8::internal::Handle<v8::internal::HeapObject>) + 336 
    frame #26: 0x0000000000f2b73d node`v8::internal::(anonymous namespace)::Invoke(v8::internal::Isolate*, v8::internal::(anonymous namespace)::InvokeParams const&) + 3101
    frame #27: 0x0000000000f2bf0f node`v8::internal::Execution::Call(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::
internal::Object>*) + 95
    frame #28: 0x0000000000de93ec node`v8::Function::Call(v8::Local<v8::Context>, v8::Local<v8::Value>, int, v8::Local<v8::Value>*) + 252
    frame #29: 0x0000000000d028af node`node::inspector::(anonymous namespace)::CallAndPauseOnStart(v8::FunctionCallbackInfo<v8::Value> const&) + 399
    frame #30: 0x0000000000e2bcb0 node`v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<false>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::H
eapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, unsigned long*, int) + 816
    frame #31: 0x0000000000e2d106 node`v8::internal::Builtin_HandleApiCall(int, unsigned long*, v8::internal::Isolate*) + 182
    frame #32: 0x00000000018344f9 node`Builtins_CEntry_Return1_DontSaveFPRegs_ArgvOnStack_BuiltinExit + 57
    frame #33: 0x00000000017ac6dc node`Builtins_InterpreterEntryTrampoline + 220
    frame #34: 0x00000000017e3e84 node`Builtins_AsyncFunctionAwaitResolveClosure + 68
    frame #35: 0x000000000188cf71 node`Builtins_PromiseFulfillReactionJob + 49
    frame #36: 0x00000000017d3dbe node`Builtins_RunMicrotasks + 638
    frame #37: 0x00000000017aad83 node`Builtins_JSRunMicrotasksEntry + 131
    frame #38: 0x0000000000f2b13a node`v8::internal::(anonymous namespace)::Invoke(v8::internal::Isolate*, v8::internal::(anonymous namespace)::InvokeParams const&) + 1562
    frame #39: 0x0000000000f2bdf0 node`v8::internal::(anonymous namespace)::InvokeWithTryCatch(v8::internal::Isolate*, v8::internal::(anonymous namespace)::InvokeParams const&) (.constprop.86) + 80
    frame #40: 0x0000000000f2c4ee node`v8::internal::Execution::TryRunMicrotasks(v8::internal::Isolate*, v8::internal::MicrotaskQueue*) + 94
    frame #41: 0x0000000000f5920f node`v8::internal::MicrotaskQueue::RunMicrotasks(v8::internal::Isolate*) (.part.51) + 127
    frame #42: 0x0000000000f595e2 node`v8::internal::MicrotaskQueue::PerformCheckpoint(v8::Isolate*) + 66 
    frame #43: 0x0000000000b1cc3c node`node::InternalCallbackScope::Close() + 268
    frame #44: 0x0000000000b1ce11 node`node::InternalCallbackScope::~InternalCallbackScope() + 17
    frame #45: 0x0000000000be27ea node`node::fs::FileHandle::CloseReq::Resolve() + 170
    frame #46: 0x0000000000be3830 node`node::fs::FileHandle::ClosePromise()::'lambda'(uv_fs_s*)::_FUN(uv_fs_s*) + 592
    frame #47: 0x0000000000bd9327 node`node::MakeLibuvRequestCallback<uv_fs_s, void (*)(uv_fs_s*)>::Wrapper(uv_fs_s*) + 87
    frame #48: 0x000000000178669d node`uv__work_done(handle=0x00007f1dcc7f7b48) at threadpool.c:318:5
    frame #49: 0x000000000178ae86 node`uv__async_io.part.1 at async.c:163:5
    frame #50: 0x000000000179d3c4 node`uv__io_poll at epoll.c:374:11
    frame #51: 0x000000000178b7ee node`uv_run(loop=0x00007f1dcc7f7a98, mode=UV_RUN_DEFAULT) at core.c:406:5
    frame #52: 0x0000000000b1da3d node`node::SpinEventLoopInternal(node::Environment*) + 333
    frame #53: 0x0000000000cb70a4 node`node::worker::Worker::Run() + 3924
    frame #54: 0x0000000000cb7668 node`node::worker::Worker::StartThread(v8::FunctionCallbackInfo<v8::Value> const&)::'lambda'(void*)::_FUN(void*) + 56
    frame #55: 0x00007f1dd4f83609 libpthread.so.0`start_thread(arg=<unavailable>) at pthread_create.c:477:8
    frame #56: 0x00007f1dd4ea8133 libc.so.6`__clone at clone.S:95

[bnoordhuis]

Thanks. Looks like a V8 issue at first glance.

I had a look at the relevant code and I don't see anything obviously wrong. I'm somewhat baffled by the presence of DebugScopeIterator in the second stack frame, that should have been DebugStackTraceIterator, but maybe that's caused by aggressive inlining.

Unfortunately I don't have more time to investigate at the moment.

[targos]

should we summon some V8 inspector people?

[bnoordhuis]

Good idea, although I don't know who.

[targos]

It would be nice to know if this is reproducible with a recent canary build: https://nodejs.org/download/v8-canary/v20.0.0-v8-canary202212266b2b946a63/

[targos]

I think @bmeurer is in the team.

[Nautigsam]

I tried with node v20.0.0-v8-canary202212266b2b946a63 and vscode v1.74.3, same result.

[targos]

With lldb on a debug build from today (V8 11.1.238):

#
# Fatal error in ../../deps/v8/src/debug/debug-scopes.cc, line 526
# Debug check failed: NeedsContext() implies context_->IsBlockContext().
#
#
#
#FailureMessage Object: 0x17525cfe8

* thread #13, stop reason = EXC_BREAKPOINT (code=1, subcode=0x101f727d0)
  * frame #0: 0x0000000101f727d0 node`v8::base::OS::Abort() [inlined] v8::base::OS::Abort(this=<unavailable>)::$_0::operator()() const at platform-posix.cc:685:5 [opt]
    frame #1: 0x0000000101f727d0 node`v8::base::OS::Abort() at platform-posix.cc:685:5 [opt]
    frame #2: 0x0000000101f5c330 node`V8_Fatal(file=<unavailable>, line=<unavailable>, format=<unavailable>) at logging.cc:167:3 [opt]
    frame #3: 0x0000000101f5bec0 node`v8::base::(anonymous namespace)::DefaultDcheckHandler(file=<unavailable>, line=<unavailable>, message=<unavailable>) at logging.cc:57:3 [opt]
    frame #4: 0x0000000100911194 node`v8::internal::ScopeIterator::Type(this=0x000060000291e928) const at debug-scopes.cc:526:9 [opt]
    frame #5: 0x000000010090e74c node`v8::internal::DebugScopeIterator::DebugScopeIterator(v8::internal::Isolate*, v8::internal::FrameInspector*) [inlined] v8::internal::DebugScopeIterator::GetType(this=<unavailable>) at debug-scope-iterator.cc:83:69 [opt]
    frame #6: 0x000000010090e744 node`v8::internal::DebugScopeIterator::DebugScopeIterator(v8::internal::Isolate*, v8::internal::FrameInspector*) [inlined] v8::internal::DebugScopeIterator::ShouldIgnore(this=<unavailable>) at debug-scope-iterator.cc:77:7 [opt]
    frame #7: 0x000000010090e744 node`v8::internal::DebugScopeIterator::DebugScopeIterator(this=0x000060000291e920, isolate=<unavailable>, frame_inspector=<unavailable>) at debug-scope-iterator.cc:51:18 [opt]
    frame #8: 0x0000000100917660 node`v8::internal::DebugStackTraceIterator::GetScopeIterator() const [inlined] std::__1::__unique_if<v8::internal::DebugScopeIterator>::__unique_single std::__1::make_unique<v8::internal::DebugScopeIterator, v8::internal::Isolate* const&, v8::internal::FrameInspector*>(__args=<unavailable>, __args=<unavailable>) at unique_ptr.h:728:32 [opt]
    frame #9: 0x000000010091764c node`v8::internal::DebugStackTraceIterator::GetScopeIterator(this=<unavailable>) const at debug-stack-trace-iterator.cc:171:10 [opt]
    frame #10: 0x000000010120b934 node`v8_inspector::V8DebuggerAgentImpl::currentCallFrames(this=<unavailable>, result=<unavailable>) at v8-debugger-agent-impl.cc:1700:36 [opt]
    frame #11: 0x0000000101202118 node`v8_inspector::V8DebuggerAgentImpl::didPause(this=0x0000000108410f30, contextId=<unavailable>, exception=<unavailable>, hitBreakpoints=<unavailable>, exceptionType=<unavailable>, isUncaught=<unavailable>, breakReasons=<unavailable>) at v8-debugger-agent-impl.cc:2130:23 [opt]
    frame #12: 0x0000000101216238 node`v8_inspector::V8InspectorImpl::forEachSession(int, std::__1::function<void (v8_inspector::V8InspectorSessionImpl*)> const&) [inlined] std::__1::__function::__value_func<void (v8_inspector::V8InspectorSessionImpl*)>::operator(this=<unavailable>, __args=<unavailable>)(v8_inspector::V8InspectorSessionImpl*&&) const at function.h:505:16 [opt]
    frame #13: 0x0000000101216220 node`v8_inspector::V8InspectorImpl::forEachSession(int, std::__1::function<void (v8_inspector::V8InspectorSessionImpl*)> const&) [inlined] std::__1::function<void (v8_inspector::V8InspectorSessionImpl*)>::operator(this=0x000000017525d728, __arg=0x000060000390b670)(v8_inspector::V8InspectorSessionImpl*) const at function.h:1182:12 [opt]
    frame #14: 0x000000010121621c node`v8_inspector::V8InspectorImpl::forEachSession(this=0x0000000108504dd0, contextGroupId=1, callback=0x000000017525d728)> const&) at v8-inspector-impl.cc:432:40 [opt]
    frame #15: 0x00000001011fa714 node`v8_inspector::V8Debugger::handleProgramBreak(this=0x0000000108504f30, pausedContext=(val_ = 0x00000001090179a8), exception=(val_ = 0x0000000000000000), breakpointIds=<unavailable>, breakReasons=(bits_ = 256), exceptionType=<unavailable>, isUncaught=<unavailable>) at v8-debugger.cc:490:16 [opt]
    frame #16: 0x000000010091ce04 node`v8::internal::Debug::OnDebugBreak(this=0x00006000035180b0, break_points_hit=<unavailable>, lastStepAction=<unavailable>, break_reasons=<unavailable>) at debug.cc:2377:22 [opt]
    frame #17: 0x000000010091bf68 node`v8::internal::Debug::Break(this=0x00006000035180b0, frame=<unavailable>, break_target=<unavailable>) at debug.cc:0 [opt]
    frame #18: 0x00000001010ef74c node`v8::internal::Runtime_DebugBreakOnBytecode(int, unsigned long*, v8::internal::Isolate*) [inlined] v8::internal::__RT_impl_Runtime_DebugBreakOnBytecode(args=<unavailable>, isolate=0x0000000118068000)0>, v8::internal::Isolate*) at runtime-debug.cc:53:23 [opt]
    frame #19: 0x00000001010ef650 node`v8::internal::Runtime_DebugBreakOnBytecode(args_length=<unavailable>, args_object=<unavailable>, isolate=0x0000000118068000) at runtime-debug.cc:35:1 [opt]
    frame #20: 0x00000001016398ec node`Builtins_CEntry_Return2_ArgvOnStack_NoBuiltinExit + 108
    frame #21: 0x000000010170834c node`Builtins_DebugBreak4Handler + 76
    frame #22: 0x000000010159f504 node`Builtins_InterpreterEntryTrampoline + 260
    frame #23: 0x000000010159d170 node`Builtins_JSEntryTrampoline + 176
    frame #24: 0x000000010159ce04 node`Builtins_JSEntry + 164
    frame #25: 0x00000001009846ec node`v8::internal::(anonymous namespace)::Invoke(v8::internal::Isolate*, v8::internal::(anonymous namespace)::InvokeParams const&) [inlined] v8::internal::GeneratedCode<unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, long, unsigned long**>::Call(this=<unavailable>, args=<unavailable>, args=<unavailable>, args=<unavailable>, args=<unavailable>, args=<unavailable>, args=<unavailable>) at simulator.h:154:12 [opt]
    frame #26: 0x00000001009846e8 node`v8::internal::(anonymous namespace)::Invoke(isolate=0x0000000118068000, params=0x000000017525e4d8)::InvokeParams const&) at execution.cc:427:33 [opt]
    frame #27: 0x0000000100983858 node`v8::internal::Execution::Call(isolate=0x0000000118068000, callable=Handle<v8::internal::Object> @ x23, receiver=Handle<v8::internal::Object> @ x22, argc=0, argv=0x0000000000000000) at execution.cc:527:10 [opt]
    frame #28: 0x0000000100f975cc node`v8::internal::SourceTextModule::RunInitializationCode(isolate=0x0000000118068000, module=Handle<v8::internal::SourceTextModule> @ x19) at source-text-module.cc:411:7 [opt]
    frame #29: 0x0000000100f979a4 node`v8::internal::SourceTextModule::MaybeTransitionComponent(isolate=0x0000000118068000, module=Handle<v8::internal::SourceTextModule> @ x21, stack=0x000000017525e7c8, new_status=kLinked) at source-text-module.cc:441:14 [opt]
    frame #30: 0x0000000100f98b30 node`v8::internal::SourceTextModule::FinishInstantiate(isolate=0x0000000118068000, module=Handle<v8::internal::SourceTextModule> @ x20, stack=<unavailable>, dfs_index=<unavailable>, zone=0x000000017525e7d8) at source-text-module.cc:535:10 [opt]
    frame #31: 0x0000000100f03294 node`v8::internal::Module::FinishInstantiate(isolate=0x0000000118068000, module=Handle<v8::internal::Module> @ x19, stack=0x000000017525e7c8, dfs_index=0x000000017525e7c4, zone=0x000000017525e7d8) at module.cc:229:12 [opt]
    frame #32: 0x0000000100f02bb4 node`v8::internal::Module::Instantiate(isolate=0x0000000118068000, module=Handle<v8::internal::Module> @ x19, context=(val_ = 0x0000000109017848), callback=(node`node::loader::ModuleWrap::ResolveModuleCallback(v8::Local<v8::Context>, v8::Local<v8::String>, v8::Local<v8::FixedArray>, v8::Local<v8::Module>) at module_wrap.cc:507), callback_without_import_assertions=<unavailable>)(v8::Local<v8::Context>, v8::Local<v8::String>, v8::Local<v8::FixedArray>, v8::Local<v8::Module>), v8::MaybeLocal<v8::Module> (*)(v8::Local<v8::Context>, v8::Local<v8::String>, v8::Local<v8::Module>)) at module.cc:189:8 [opt]
    frame #33: 0x00000001006b0438 node`v8::Module::InstantiateModule(this=0x0000000109017850, context=(val_ = 0x0000000109017848), callback=(node`node::loader::ModuleWrap::ResolveModuleCallback(v8::Local<v8::Context>, v8::Local<v8::String>, v8::Local<v8::FixedArray>, v8::Local<v8::Module>) at module_wrap.cc:507))(v8::Local<v8::Context>, v8::Local<v8::String>, v8::Local<v8::FixedArray>, v8::Local<v8::Module>)) at api.cc:2525:28 [opt]
    frame #34: 0x000000010018ed40 node`node::loader::ModuleWrap::Instantiate(args=0x000000017525eaf8) at module_wrap.cc:343:15
    frame #35: 0x000000010078ce14 node`v8::internal::FunctionCallbackArguments::Call(this=0x000000017525eba8, handler=<unavailable>) at api-arguments-inl.h:146:3 [opt]
    frame #36: 0x000000010078b870 node`v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<false>(isolate=0x0000000118068000, new_target=Handle<v8::internal::HeapObject> @ x23, fun_data=<unavailable>, receiver=<unavailable>, argv=0x000000017525ecc8, argc=0) at builtins-api.cc:113:36 [opt]
    frame #37: 0x000000010078ac10 node`v8::internal::Builtins::InvokeApiFunction(isolate=0x0000000118068000, is_construct=<unavailable>, function=<unavailable>, receiver=Handle<v8::internal::Object> @ x22, argc=0, args=<unavailable>, new_target=<unavailable>) at builtins-api.cc:206:10 [opt]
    frame #38: 0x00000001009840f0 node`v8::internal::(anonymous namespace)::Invoke(isolate=0x0000000118068000, params=0x000000017525ef98)::InvokeParams const&) at execution.cc:321:20 [opt]
    frame #39: 0x0000000100983858 node`v8::internal::Execution::Call(isolate=0x0000000118068000, callable=Handle<v8::internal::Object> @ x23, receiver=Handle<v8::internal::Object> @ x22, argc=0, argv=0x000000017525f1e8) at execution.cc:527:10 [opt]
    frame #40: 0x00000001006d50dc node`v8::Function::Call(this=<unavailable>, context=<unavailable>, recv=(val_ = 0x0000000175261480), argc=0, argv=0x000000017525f1e8) at api.cc:5449:7 [opt]
    frame #41: 0x000000010050c7ec node`node::inspector::(anonymous namespace)::CallAndPauseOnStart(args=0x0000000175261228) at inspector_js_api.cc:188:35
    frame #42: 0x000000010078ce14 node`v8::internal::FunctionCallbackArguments::Call(this=0x00000001752612d8, handler=<unavailable>) at api-arguments-inl.h:146:3 [opt]
    frame #43: 0x000000010078b870 node`v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<false>(isolate=0x0000000118068000, new_target=Handle<v8::internal::HeapObject> @ x23, fun_data=<unavailable>, receiver=<unavailable>, argv=0x0000000175261478, argc=2) at builtins-api.cc:113:36 [opt]
    frame #44: 0x000000010078a3e8 node`v8::internal::Builtin_HandleApiCall(int, unsigned long*, v8::internal::Isolate*) at builtins-api.cc:148:5 [opt]
    frame #45: 0x000000010078a2e0 node`v8::internal::Builtin_HandleApiCall(args_length=<unavailable>, args_object=<unavailable>, isolate=0x0000000118068000) at builtins-api.cc:135:1 [opt]
    frame #46: 0x000000010163940c node`Builtins_CEntry_Return1_ArgvOnStack_BuiltinExit + 108
    frame #47: 0x000000010159f504 node`Builtins_InterpreterEntryTrampoline + 260
    frame #48: 0x00000001015dc950 node`Builtins_AsyncFunctionAwaitResolveClosure + 112
    frame #49: 0x00000001016ab760 node`Builtins_PromiseFulfillReactionJob + 96
    frame #50: 0x00000001015c96cc node`Builtins_RunMicrotasks + 620
    frame #51: 0x000000010159d044 node`Builtins_JSRunMicrotasksEntry + 164
    frame #52: 0x0000000100984718 node`v8::internal::(anonymous namespace)::Invoke(v8::internal::Isolate*, v8::internal::(anonymous namespace)::InvokeParams const&) [inlined] v8::internal::GeneratedCode<unsigned long, unsigned long, v8::internal::MicrotaskQueue*>::Call(this=<unavailable>, args=<unavailable>, args=<unavailable>) at simulator.h:154:12 [opt]
    frame #53: 0x0000000100984714 node`v8::internal::(anonymous namespace)::Invoke(isolate=0x0000000118068000, params=0x0000000175261960)::InvokeParams const&) at execution.cc:443:33 [opt]
    frame #54: 0x00000001009856bc node`v8::internal::(anonymous namespace)::InvokeWithTryCatch(isolate=0x0000000118068000, params=0x0000000175261960)::InvokeParams const&) at execution.cc:488:20 [opt]
    frame #55: 0x0000000100985d58 node`v8::internal::Execution::TryRunMicrotasks(isolate=0x0000000118068000, microtask_queue=0x000060000291cb60) at execution.cc:599:10 [opt]
    frame #56: 0x00000001009cce94 node`v8::internal::MicrotaskQueue::RunMicrotasks(this=0x000060000291cb60, isolate=0x0000000118068000) at microtask-queue.cc:173:22 [opt]
    frame #57: 0x00000001009ccba0 node`v8::internal::MicrotaskQueue::PerformCheckpointInternal(this=0x000060000291cb60, v8_isolate=0x0000000118068000) at microtask-queue.cc:126:3 [opt]
    frame #58: 0x000000010006e258 node`node::InternalCallbackScope::Close(this=0x0000000175261c80) at callback.cc:133:35
    frame #59: 0x000000010006e074 node`node::InternalCallbackScope::~InternalCallbackScope(this=0x0000000175261c80) at callback.cc:92:3
    frame #60: 0x000000010006dba4 node`node::InternalCallbackScope::~InternalCallbackScope(this=0x0000000175261c80) at callback.cc:91:49
    frame #61: 0x00000001002640f0 node`node::fs::FileHandle::CloseReq::Resolve(this=0x000000010860e240) at node_file.cc:389:1
    frame #62: 0x0000000100279d90 node`node::fs::FileHandle::ClosePromise(this=0x000000010860e298, req=0x000000010860e298)::$_0::operator()(uv_fs_s*) const at node_file.cc:480:14
    frame #63: 0x0000000100279b60 node`node::fs::FileHandle::ClosePromise(req=0x000000010860e298)::$_0::__invoke(uv_fs_s*) at node_file.cc:466:38
    frame #64: 0x0000000100248f60 node`node::MakeLibuvRequestCallback<uv_fs_s, void (*)(uv_fs_s*)>::Wrapper(req=0x000000010860e298) at req_wrap-inl.h:126:5
    frame #65: 0x000000010156fa68 node`uv__fs_done(w=0x000000010860e3e8, status=0) at fs.c:1780:3
    frame #66: 0x0000000101563528 node`uv__work_done(handle=0x000000017526aba8) at threadpool.c:318:5
    frame #67: 0x000000010156b5ec node`uv__async_io(loop=0x000000017526aae0, w=0x000000017526ad50, events=1) at async.c:163:5
    frame #68: 0x000000010158c5bc node`uv__io_poll(loop=0x000000017526aae0, timeout=0) at kqueue.c:390:9
    frame #69: 0x000000010156bd24 node`uv_run(loop=0x000000017526aae0, mode=UV_RUN_DEFAULT) at core.c:406:5
    frame #70: 0x0000000100070f38 node`node::SpinEventLoopInternal(env=0x0000000109019800) at embed_helpers.cc:38:7
    frame #71: 0x0000000100445354 node`node::worker::Worker::Run(this=0x000000010a904680) at node_worker.cc:375:35
    frame #72: 0x000000010044ce54 node`node::worker::Worker::StartThread(this=0x000000010a904680, arg=0x000000010a904680)::$_3::operator()(void*) const at node_worker.cc:653:8
    frame #73: 0x000000010044ce00 node`node::worker::Worker::StartThread(arg=0x000000010a904680)::$_3::__invoke(void*) at node_worker.cc:642:55
    frame #74: 0x00000001a215506c libsystem_pthread.dylib`_pthread_start + 148

[yagodorea]

I think I'm having the exact same issue (Node v18.18.0), only workaround was changing to Node v20.7.0... 🤡

In my case at least the issue isn't with vscode, it also breaks in the Chrome inspector. It seems to break whenever I try to evaluate any variable value (I start typing and the inspector's autocomplete sweeps the local context looking for what I'm typing, and then it segfaults).

Let me know if you guys figure out the problem.

Here's my segfault crash log (got it using the segfault-handler library, not sure it's helpful):

PID 9117 received SIGSEGV for address: 0x7c
0   segfault-handler.node               0x000000010818d0f4 _ZL16segfault_handleriP9__siginfoPv + 296
1   libsystem_platform.dylib            0x0000000188c3da24 _sigtramp + 56
2   node                                0x0000000102ffba90 _ZNK2v88internal13ScopeIterator15VisitLocalScopeERKNSt3__18functionIFbNS0_6HandleINS0_6StringEEENS4_INS0_6ObjectEEENS1_9ScopeTypeEEEENS1_4ModeES9_ + 100
3   node                                0x0000000102ffafb4 _ZN2v88internal13ScopeIterator11ScopeObjectENS1_4ModeE + 216
4   node                                0x0000000102ff0ca8 _ZN2v88internal13DebugEvaluate14ContextBuilderC2EPNS0_7IsolateEPNS0_15JavaScriptFrameEi + 332
5   node                                0x0000000102ff0218 _ZN2v88internal13DebugEvaluate5LocalEPNS0_7IsolateENS0_12StackFrameIdEiNS0_6HandleINS0_6StringEEEb + 204
6   node                                0x0000000102ffe140 _ZN2v88internal23DebugStackTraceIterator8EvaluateENS_5LocalINS_6StringEEEb + 112
7   node                                0x00000001034cb234 _ZN12v8_inspector19V8DebuggerAgentImpl19evaluateOnCallFrameERKNS_8String16ES3_N8v8_crdtp6detail10ValueMaybeIS1_EENS6_IbEES8_S8_S8_S8_NS6_IdEEPNSt3__110unique_ptrINS_8protocol7Runtime12RemoteObjectENSA_14default_deleteISE_EEEEPNS5_8PtrMaybeINSD_16ExceptionDetailsEEE + 604
8   node                                0x00000001036c2b74 _ZN12v8_inspector8protocol8Debugger20DomainDispatcherImpl19evaluateOnCallFrameERKN8v8_crdtp12DispatchableE + 324
9   node                                0x00000001034fae74 _ZN8v8_crdtp14UberDispatcher14DispatchResult3RunEv + 36
10  node                                0x00000001034d8088 _ZN12v8_inspector22V8InspectorSessionImpl23dispatchProtocolMessageENS_10StringViewE + 244
11  node                                0x0000000102e88d38 _ZN4node9inspector19NodeInspectorClient27dispatchMessageFromFrontendEiRKN12v8_inspector10StringViewE + 324
12  node                                0x0000000102e8893c _ZN4node9inspector12_GLOBAL__N_126SameThreadInspectorSession8DispatchERKN12v8_inspector10StringViewE + 64
13  node                                0x0000000102e97ff0 _ZN4node9inspector12_GLOBAL__N_122MainThreadSessionState8DispatchENSt3__110unique_ptrIN12v8_inspector12StringBufferENS3_14default_deleteIS6_EEEE + 60
14  node                                0x0000000102e98034 _ZN4node9inspector12_GLOBAL__N_128AnotherThreadObjectReferenceINS1_22MainThreadSessionStateEE5ApplyINSt3__110unique_ptrIN12v8_inspector12StringBufferENS6_14default_deleteIS9_EEEEEEvPS3_MS3_FvT_ERSE_ + 52
15  node                                0x0000000102e96ccc _ZN4node9inspector19MainThreadInterface16DispatchMessagesEv + 164
16  node                                0x0000000102e985fc _ZN4node13CallbackQueueIvJPNS_11EnvironmentEEE12CallbackImplIZNS_9inspector19MainThreadInterface4PostENSt3__110unique_ptrINS5_7RequestENS7_14default_deleteIS9_EEEEE3$_0E4CallES2_ + 48
17  node                                0x0000000102d65a20 _ZN4node11Environment21RunAndClearInterruptsEv + 188
18  node                                0x0000000102e89280 _ZN4node9inspector19NodeInspectorClient21runMessageLoopOnPauseEi + 60
19  node                                0x00000001034bbe50 _ZN12v8_inspector10V8Debugger18handleProgramBreakEN2v85LocalINS1_7ContextEEENS2_INS1_5ValueEEERKNSt3__16vectorIiNS7_9allocatorIiEEEENS1_4base7EnumSetINS1_5debug11BreakReasonEiEENSG_13ExceptionTypeEb + 688
20  node                                0x00000001030022dc _ZN2v88internal5Debug12OnDebugBreakENS0_6HandleINS0_10FixedArrayEEENS0_10StepActionENS_4base7EnumSetINS_5debug11BreakReasonEiEE + 660
21  node                                0x000000010300182c _ZN2v88internal5Debug5BreakEPNS0_15JavaScriptFrameENS0_6HandleINS0_10JSFunctionEEE + 612
22  node                                0x000000010342f4c8 _ZN2v88internal28Runtime_DebugBreakOnBytecodeEiPmPNS0_7IsolateE + 256
23  node                                0x000000010378572c Builtins_CEntry_Return2_DontSaveFPRegs_ArgvOnStack_NoBuiltinExit + 108
24  node                                0x000000010380a22c Builtins_DebugBreak1Handler + 76
25  node                                0x0000000103710198 Builtins_InterpreterEntryTrampoline + 248
26  node                                0x0000000103710198 Builtins_InterpreterEntryTrampoline + 248
27  ???                                 0x0000000108966634 0x0 + 4439041588
28  ???                                 0x0000000108afb0fc 0x0 + 4440699132
29  node                                0x0000000103710198 Builtins_InterpreterEntryTrampoline + 248
30  node                                0x0000000103710198 Builtins_InterpreterEntryTrampoline + 248
31  ???                                 0x0000000108966634 0x0 + 4439041588