Status: New
Owner: ----
New issue 3922 by [email protected]: dynamic array not deleted on
InitializeFastElementsKindSequence::Construct()
https://code.google.com/p/v8/issues/detail?id=3922
Version: <f0c9cc0bbfd461c7f516799d9a58e9a7395f737e>
OS: <Windows, Ubuntu, CentOS>
Architecture: <x86, x64,>
What steps will reproduce the problem?
1. build sample HelloWorld from Embedder's Guide
2. run with memory heap checking tool
What is the expected output?
no leaks
What do you see instead?
3. expect "still reachable" leak report pointing to:
file: elements-kind.cc
struct InitializeFastElementsKindSequence {
static void Construct(
ElementsKind** fast_elements_kind_sequence_ptr) {
ElementsKind* fast_elements_kind_sequence =
new ElementsKind[kFastElementsKindCount];
...
...
}
although it is not a true memory leak, some automated build processes will
mark
client build as failed.
Here is the code and stack:
int main()
{
V8::Initialize();
Isolate* isolate = Isolate::New();
{
Isolate::Scope isolate_scope(isolate);
HandleScope handle_scope(isolate);
Local<Context> context = Context::New(isolate); // LEAK HERE (see
source from elements-kind.cc)
Context::Scope context_scope(context);
Local<String> source = String::NewFromUtf8(isolate, "'Hello' + ',
World!'");
Local<Script> script = Script::Compile(source);
Local<Value> result = script->Run();
String::Utf8Value utf8(result);
cout << "Result: " << *utf8;
context.Clear();
}
isolate->Dispose();
V8::Dispose();
}
v8::internal::InitializeFastElementsKindSequence::Construct(v8::internal::ElementsKind
*
* fast_elements_kind_sequence_ptr) Line 72
v8::base::StaticallyAllocatedInstanceTrait<enum v8::internal::ElementsKind
*>::InitStorageUsingTrait<v8::internal::InitializeFastElementsKindSequence>(v8::base::StaticallyAllocatedInstanceTrait<enum
v8::internal::ElementsKind *>::StorageType * storage) Line 108
v8::base::LazyInstanceImpl<enum v8::internal::ElementsKind
*,v8::base::StaticallyAllocatedInstanceTrait<enum
v8::internal::ElementsKind
*>,v8::internal::InitializeFastElementsKindSequence,v8::base::ThreadSafeInitOnceTrait,v8::base::LeakyInstanceTrait<enum
v8::internal::ElementsKind *>
::InitInstance(v8::base::StaticallyAllocatedInstanceTrait<enum
v8::internal::ElementsKind *>::StorageType * storage) Line 174
v8::base::CallOnceImpl(int * once, void (void *) * init_func, void * arg)
Line 37
v8::base::CallOnce<void>(int * once, void (void *) * init_func, void * arg)
Line 94
v8::base::ThreadSafeInitOnceTrait::Init<void (__cdecl*)(void *),void *>(int
* once, void (void *) * function, void * storage) Line 148
v8::base::LazyInstanceImpl<enum v8::internal::ElementsKind
*,v8::base::StaticallyAllocatedInstanceTrait<enum
v8::internal::ElementsKind
*>,v8::internal::InitializeFastElementsKindSequence,v8::base::ThreadSafeInitOnceTrait,v8::base::LeakyInstanceTrait<enum
v8::internal::ElementsKind *> >::Init() Line 183
v8::base::LazyInstanceImpl<enum v8::internal::ElementsKind
*,v8::base::StaticallyAllocatedInstanceTrait<enum
v8::internal::ElementsKind
*>,v8::internal::InitializeFastElementsKindSequence,v8::base::ThreadSafeInitOnceTrait,v8::base::LeakyInstanceTrait<enum
v8::internal::ElementsKind *> >::Get() Line 194
v8::internal::GetSequenceIndexFromFastElementsKind(v8::internal::ElementsKind
elements_kind)
Line 107
v8::internal::ArrayConstructorStubAheadOfTimeHelper<v8::internal::ArrayNoArgumentConstructorStub>(v8::internal::Isolate
*
isolate) Line 4315
v8::internal::ArrayConstructorStubBase::GenerateStubsAheadOfTime(v8::internal::Isolate
*
isolate) Line 4330
v8::internal::CodeStub::GenerateStubsAheadOfTime(v8::internal::Isolate *
isolate) Line 2268
v8::internal::Heap::CreateFixedStubs() Line 2719
v8::internal::Heap::CreateInitialObjects() Line 2832
v8::internal::Heap::CreateHeapObjects() Line 5139
v8::internal::Isolate::Init(v8::internal::Deserializer * des) Line 1915
v8::internal::V8::Initialize(v8::internal::Deserializer * des) Line 44
v8::InitializeHelper(v8::internal::Isolate * isolate) Line 214
v8::EnsureInitializedForIsolate(v8::internal::Isolate * isolate, const char
* location) Line 223
!v8::Context::New(v8::Isolate * external_isolate,
v8::ExtensionConfiguration * extensions, v8::Handle<v8::ObjectTemplate>
global_template, v8::Handle<v8::Value> global_object) Line 5184
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