I create an instance with
v8::Isolate::CreateParams create_params;
create_params.array_buffer_allocator = allocator_ =
v8::ArrayBuffer::Allocator::NewDefaultAllocator();
isolate_ = v8::Isolate::New(create_params);
and dispose of it with
isolate_->Dispose();
delete allocator_;
Immanuel Haffner schrieb am Mittwoch, 17. Juni 2020 um 14:44:33 UTC+2:
> Build args are
>
> is_clang=true is_component_build=false v8_monolithic=true
> v8_enable_pointer_compression=false treat_warnings_as_errors=false
> v8_use_external_startup_data=false use_sysroot=false
> use_custom_libcxx=false clang_use_chrome_plugins=false
> target_cpu="x64" is_debug=true use_debug_fission=true
>
> Immanuel Haffner schrieb am Mittwoch, 17. Juni 2020 um 14:43:51 UTC+2:
>
>> Hi all,
>>
>> after upgrading to v8.5.183 the LeakSanitizer of clang detects a memory
>> leak in embedded V8:
>>
>> ==145652==ERROR: LeakSanitizer: detected memory leaks
>>
>> Direct leak of 12300 byte(s) in 3 object(s) allocated from:
>> #0 0x562b902d2ff1 in calloc
>> (/home/immanuel/Documents/Work/PhD/mutable/mutable/build/debug/bin/shell+0x11b2ff1)
>> #1 0x562b91eb83fe in
>> v8::internal::BasicMemoryChunk::Initialize(v8::internal::Heap*, unsigned
>> long, unsigned long, unsigned long, unsigned long, v8::internal::Space*,
>> v8::internal::VirtualMemory)
>> ../../../../../third-party/v8/v8/src/heap/basic-memory-chunk.cc:31:42
>> #2 0x562b90fe3740 in
>> v8::internal::MemoryChunk::Initialize(v8::internal::Heap*, unsigned long,
>> unsigned long, unsigned long, unsigned long, v8::internal::Executability,
>> v8::internal::Space*, v8::internal::VirtualMemory)
>> ../../../../../third-party/v8/v8/src/heap/memory-chunk.cc:176:3
>> #3 0x562b90fddaa6 in
>> v8::internal::MemoryAllocator::AllocateChunk(unsigned long, unsigned long,
>> v8::internal::Executability, v8::internal::Space*)
>> ../../../../../third-party/v8/v8/src/heap/memory-allocator.cc:491:7
>> #4 0x562b90fdd5a3 in v8::internal::Page*
>> v8::internal::MemoryAllocator::AllocatePage<(v8::internal::MemoryAllocator::AllocationMode)0,
>>
>> v8::internal::PagedSpace>(unsigned long, v8::internal::PagedSpace*,
>> v8::internal::Executability)
>> ../../../../../third-party/v8/v8/src/heap/memory-allocator.cc:617:13
>> #5 0x562b91002712 in v8::internal::PagedSpace::Expand()
>> ../../../../../third-party/v8/v8/src/heap/paged-spaces.cc:336:38
>> #6 0x562b91005bcf in
>> v8::internal::PagedSpace::RawSlowRefillLinearAllocationArea(int,
>> v8::internal::AllocationOrigin)
>> ../../../../../third-party/v8/v8/src/heap/paged-spaces.cc:974:18
>> #7 0x562b910058ba in
>> v8::internal::PagedSpace::SlowRefillLinearAllocationArea(int,
>> v8::internal::AllocationOrigin)
>> ../../../../../third-party/v8/v8/src/heap/paged-spaces.cc:902:10
>> #8 0x562b90f2ffea in
>> v8::internal::PagedSpace::AllocateRawUnaligned(int,
>> v8::internal::AllocationOrigin)
>> ../../../../../third-party/v8/v8/src/heap/paged-spaces-inl.h:98:10
>> #9 0x562b90f4e53d in
>> v8::internal::Heap::ReserveSpace(std::vector<v8::internal::Heap::Chunk,
>> std::allocator<v8::internal::Heap::Chunk> >*, std::vector<unsigned long,
>> std::allocator<unsigned long> >*)
>> ../../../../../third-party/v8/v8/src/heap/heap.cc:1982:46
>> #10 0x562b9204daa6 in
>> v8::internal::DeserializerAllocator::ReserveSpace()
>> ../../../../../third-party/v8/v8/src/snapshot/deserializer-allocator.cc:179:31
>> #11 0x562b913d5e31 in
>> v8::internal::ReadOnlyDeserializer::DeserializeInto(v8::internal::Isolate*)
>> ../../../../../third-party/v8/v8/src/snapshot/read-only-deserializer.cc:20:21
>> #12 0x562b91007f9e in
>> v8::internal::ReadOnlyHeap::SetUp(v8::internal::Isolate*,
>> v8::internal::ReadOnlyDeserializer*)
>> ../../../../../third-party/v8/v8/src/heap/read-only-heap.cc:119:8
>> #13 0x562b90ec89ee in
>> v8::internal::Isolate::Init(v8::internal::ReadOnlyDeserializer*,
>> v8::internal::StartupDeserializer*)
>> ../../../../../third-party/v8/v8/src/execution/isolate.cc:3378:3
>> #14 0x562b90ec98ca in
>> v8::internal::Isolate::InitWithSnapshot(v8::internal::ReadOnlyDeserializer*,
>> v8::internal::StartupDeserializer*)
>> ../../../../../third-party/v8/v8/src/execution/isolate.cc:3277:10
>> #15 0x562b913f4765 in
>> v8::internal::Snapshot::Initialize(v8::internal::Isolate*)
>> ../../../../../third-party/v8/v8/src/snapshot/snapshot.cc:163:16
>> #16 0x562b90d8aaff in v8::Isolate::Initialize(v8::Isolate*,
>> v8::Isolate::CreateParams const&)
>> ../../../../../third-party/v8/v8/src/api/api.cc:8242:8
>> #17 0x562b90d8b1ae in v8::Isolate::New(v8::Isolate::CreateParams
>> const&) ../../../../../third-party/v8/v8/src/api/api.cc:8276:3
>> #18 0x562b90513208 in db::V8Platform::V8Platform()
>> /home/immanuel/Documents/Work/PhD/mutable/mutable/build/debug/../../src/backend/V8Platform.cpp:198:16
>> #19 0x562b9051e429 in std::_MakeUniq<db::V8Platform>::__single_object
>> std::make_unique<db::V8Platform>()
>> /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/10.1.0/../../../../include/c++/10.1.0/bits/unique_ptr.h:961:34
>> #20 0x562b9051a26b in db::Backend::CreateWasmV8()
>> /home/immanuel/Documents/Work/PhD/mutable/mutable/build/debug/../../src/backend/V8Platform.cpp:384:42
>> #21 0x562b90436e24 in db::Backend::Create(db::Backend::kind_t)
>> /home/immanuel/Documents/Work/PhD/mutable/mutable/build/debug/../../src/tables/Backend.tbl:10:1
>> #22 0x562b9032fe6f in db::Backend::Create(char const*)
>> /home/immanuel/Documents/Work/PhD/mutable/mutable/build/debug/../../src/backend/Backend.hpp:27:71
>> #23 0x562b9030f065 in process_stream(std::istream&, char const*,
>> db::Diagnostic)
>> /home/immanuel/Documents/Work/PhD/mutable/mutable/build/debug/../../src/shell.cpp:148:32
>> #24 0x562b90322319 in main
>> /home/immanuel/Documents/Work/PhD/mutable/mutable/build/debug/../../src/shell.cpp:668:13
>> #25 0x7f90097ed001 in __libc_start_main (/usr/lib/libc.so.6+0x27001)
>>
>> SUMMARY: AddressSanitizer: 12300 byte(s) leaked in 3 allocation(s).
>>
>> What can I do to help solve this?
>>
>> Regards,
>> Immanuel
>>
>
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