Got the same problem And here is what I found:
The root cause is that the ReadOnlyHeap section in snapshot do not match
between the one creating codecache and the one loading codecache.
CodeSerializer encodes readonly objects as chunk-index/offset of the
ReadOnlySpace, so decoding codecache against unmatched snapshot would cause
error.
And the unmatch is caused by Heap::single_character_string_cache(), the
content of this cache vary depending on scripts runned by SnapshotCreator.
When StartupSerializer visits single_character_string_cache, it calls
SerializeUsingReadOnlyObjectCache to serialize readonly objects. So the
order of
readonly objects varies.
Here is a patch I think would mitigate this problem.
diff --git a/src/snapshot/read-only-serializer.cc
b/src/snapshot/read-only-serializer.cc
index 06c5094782..1e13232150 100644
--- a/src/snapshot/read-only-serializer.cc
+++ b/src/snapshot/read-only-serializer.cc
@@ -66,6 +66,23 @@ void
ReadOnlySerializer::SerializeObjectImpl(Handle<HeapObject> obj) {
#endif
}
+namespace {
+
+void ResetSingleCharacterStringCache(Isolate* isolate) {
+ DisallowGarbageCollection no_gc;
+ FixedArray cache = isolate->heap()->single_character_string_cache();
+ HeapObject undefined = ReadOnlyRoots(isolate).undefined_value();
+
+ for (int i = 0; i < cache.length(); ++i) {
+ HeapObject obj = HeapObject::cast(cache.get(i));
+ if (ReadOnlyHeap::Contains(obj) && obj.IsInternalizedString()) {
+ cache.set(i, undefined);
+ }
+ }
+}
+
+}
+
void ReadOnlySerializer::SerializeReadOnlyRoots() {
// No active threads.
CHECK_NULL(isolate()->thread_manager()->FirstThreadStateInUse());
@@ -73,6 +90,8 @@ void ReadOnlySerializer::SerializeReadOnlyRoots() {
CHECK_IMPLIES(!allow_active_isolate_for_testing(),
isolate()->handle_scope_implementer()->blocks()->empty());
+ ResetSingleCharacterStringCache(isolate());
+
ReadOnlyRoots(isolate()).Iterate(this);
}
On Monday, November 23, 2020 at 1:49:00 PM UTC+8 [email protected] wrote:
> I try to use both snapshot and codecache to reduce page load time. All
> going well when I use snapshot or codecache alone. However, when I create
> codecache for index.js with an engine without snapshot first, then create
> snapshot for startup.js, then create an engine loading index.js with both
> snapshot and codecache, crash occurs. Here is stacktrace:
>
> [image: Pasted Graphic.png]
>
> com.facebook.react.JavaScript (61)#0 0x000000010c7f9a16 in bool
> v8::internal::IsInRange<v8::internal::InstanceType,
> v8::internal::InstanceType>(v8::internal::InstanceType,
> v8::internal::InstanceType, v8::internal::InstanceType) [inlined] at
> /Volumes/EXTREME SSD/Documents/depot_tools/v8/v8/src/utils/utils.h:69
>
> #1 0x000000010c7f9a16 in
> v8::internal::InstanceTypeChecker::IsString(v8::internal::InstanceType)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/objects/instance-type-inl.h:33
>
> #2 0x000000010c7f9a16 in
> v8::internal::HeapObject::IsString(v8::internal::Isolate*) const [inlined]
> at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/objects/instance-type-inl.h:64
>
> #3 0x000000010c7f9a12 in
> v8::internal::HeapObject::IsThinString(v8::internal::Isolate*) const
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/objects/objects-inl.h:205
>
> #4 0x000000010c7f9a12 in v8::internal::HeapObject::IsThinString() const
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/objects/objects-inl.h:204
>
> #5 0x000000010c7f9a12 in
> v8::internal::Deserializer::GetBackReferencedObject(v8::internal::SnapshotSpace)
>
> at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:364
>
> #6 0x000000010c7f89b8 in v8::internal::FullMaybeObjectSlot
> v8::internal::Deserializer::ReadDataCase<v8::internal::FullMaybeObjectSlot,
> (v8::internal::SerializerDeserializer::Bytecode)8,
> (v8::internal::SnapshotSpace)6>(v8::internal::Isolate*,
> v8::internal::FullMaybeObjectSlot, unsigned long, unsigned char, bool)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:813
>
> #7 0x000000010c7f899a in bool
> v8::internal::Deserializer::ReadData<v8::internal::FullMaybeObjectSlot>(v8::internal::FullMaybeObjectSlot,
>
> v8::internal::FullMaybeObjectSlot, v8::internal::SnapshotSpace, unsigned
> long) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:579
>
> #8 0x000000010c7faa8d in
> v8::internal::Deserializer::ReadObject(v8::internal::SnapshotSpace) at
> /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:394
>
> #9 0x000000010c7f89d4 in v8::internal::FullMaybeObjectSlot
> v8::internal::Deserializer::ReadDataCase<v8::internal::FullMaybeObjectSlot,
> (v8::internal::SerializerDeserializer::Bytecode)0,
> (v8::internal::SnapshotSpace)6>(v8::internal::Isolate*,
> v8::internal::FullMaybeObjectSlot, unsigned long, unsigned char, bool)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:810
>
> #10 0x000000010c7f89ba in bool
> v8::internal::Deserializer::ReadData<v8::internal::FullMaybeObjectSlot>(v8::internal::FullMaybeObjectSlot,
>
> v8::internal::FullMaybeObjectSlot, v8::internal::SnapshotSpace, unsigned
> long) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:576
>
> #11 0x000000010c7faa8d in
> v8::internal::Deserializer::ReadObject(v8::internal::SnapshotSpace) at
> /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:394
>
> #12 0x000000010c7f89d4 in v8::internal::FullMaybeObjectSlot
> v8::internal::Deserializer::ReadDataCase<v8::internal::FullMaybeObjectSlot,
> (v8::internal::SerializerDeserializer::Bytecode)0,
> (v8::internal::SnapshotSpace)6>(v8::internal::Isolate*,
> v8::internal::FullMaybeObjectSlot, unsigned long, unsigned char, bool)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:810
>
> #13 0x000000010c7f89ba in bool
> v8::internal::Deserializer::ReadData<v8::internal::FullMaybeObjectSlot>(v8::internal::FullMaybeObjectSlot,
>
> v8::internal::FullMaybeObjectSlot, v8::internal::SnapshotSpace, unsigned
> long) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:576
>
> #14 0x000000010c7faa8d in
> v8::internal::Deserializer::ReadObject(v8::internal::SnapshotSpace) at
> /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:394
>
> #15 0x000000010c7f89d4 in v8::internal::FullMaybeObjectSlot
> v8::internal::Deserializer::ReadDataCase<v8::internal::FullMaybeObjectSlot,
> (v8::internal::SerializerDeserializer::Bytecode)0,
> (v8::internal::SnapshotSpace)6>(v8::internal::Isolate*,
> v8::internal::FullMaybeObjectSlot, unsigned long, unsigned char, bool)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:810
>
> #16 0x000000010c7f89ba in bool
> v8::internal::Deserializer::ReadData<v8::internal::FullMaybeObjectSlot>(v8::internal::FullMaybeObjectSlot,
>
> v8::internal::FullMaybeObjectSlot, v8::internal::SnapshotSpace, unsigned
> long) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:576
>
> #17 0x000000010c7faa8d in
> v8::internal::Deserializer::ReadObject(v8::internal::SnapshotSpace) at
> /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:394
>
> #18 0x000000010c7f89d4 in v8::internal::FullMaybeObjectSlot
> v8::internal::Deserializer::ReadDataCase<v8::internal::FullMaybeObjectSlot,
> (v8::internal::SerializerDeserializer::Bytecode)0,
> (v8::internal::SnapshotSpace)6>(v8::internal::Isolate*,
> v8::internal::FullMaybeObjectSlot, unsigned long, unsigned char, bool)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:810
>
> #19 0x000000010c7f89ba in bool
> v8::internal::Deserializer::ReadData<v8::internal::FullMaybeObjectSlot>(v8::internal::FullMaybeObjectSlot,
>
> v8::internal::FullMaybeObjectSlot, v8::internal::SnapshotSpace, unsigned
> long) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:576
>
> #20 0x000000010c7faa8d in
> v8::internal::Deserializer::ReadObject(v8::internal::SnapshotSpace) at
> /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:394
>
> #21 0x000000010c7f89d4 in v8::internal::FullMaybeObjectSlot
> v8::internal::Deserializer::ReadDataCase<v8::internal::FullMaybeObjectSlot,
> (v8::internal::SerializerDeserializer::Bytecode)0,
> (v8::internal::SnapshotSpace)6>(v8::internal::Isolate*,
> v8::internal::FullMaybeObjectSlot, unsigned long, unsigned char, bool)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:810
>
> #22 0x000000010c7f89ba in bool
> v8::internal::Deserializer::ReadData<v8::internal::FullMaybeObjectSlot>(v8::internal::FullMaybeObjectSlot,
>
> v8::internal::FullMaybeObjectSlot, v8::internal::SnapshotSpace, unsigned
> long) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:576
>
> #23 0x000000010c7faa8d in
> v8::internal::Deserializer::ReadObject(v8::internal::SnapshotSpace) at
> /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:394
>
> #24 0x000000010c7f89d4 in v8::internal::FullMaybeObjectSlot
> v8::internal::Deserializer::ReadDataCase<v8::internal::FullMaybeObjectSlot,
> (v8::internal::SerializerDeserializer::Bytecode)0,
> (v8::internal::SnapshotSpace)6>(v8::internal::Isolate*,
> v8::internal::FullMaybeObjectSlot, unsigned long, unsigned char, bool)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:810
>
> #25 0x000000010c7f89ba in bool
> v8::internal::Deserializer::ReadData<v8::internal::FullMaybeObjectSlot>(v8::internal::FullMaybeObjectSlot,
>
> v8::internal::FullMaybeObjectSlot, v8::internal::SnapshotSpace, unsigned
> long) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:576
>
> #26 0x000000010c7faa8d in
> v8::internal::Deserializer::ReadObject(v8::internal::SnapshotSpace) at
> /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:394
>
> #27 0x000000010c7f89d4 in v8::internal::FullMaybeObjectSlot
> v8::internal::Deserializer::ReadDataCase<v8::internal::FullMaybeObjectSlot,
> (v8::internal::SerializerDeserializer::Bytecode)0,
> (v8::internal::SnapshotSpace)6>(v8::internal::Isolate*,
> v8::internal::FullMaybeObjectSlot, unsigned long, unsigned char, bool)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:810
>
> #28 0x000000010c7f89ba in bool
> v8::internal::Deserializer::ReadData<v8::internal::FullMaybeObjectSlot>(v8::internal::FullMaybeObjectSlot,
>
> v8::internal::FullMaybeObjectSlot, v8::internal::SnapshotSpace, unsigned
> long) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:576
>
> #29 0x000000010c7faa8d in
> v8::internal::Deserializer::ReadObject(v8::internal::SnapshotSpace) at
> /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:394
>
> #30 0x000000010c7f89d4 in v8::internal::FullMaybeObjectSlot
> v8::internal::Deserializer::ReadDataCase<v8::internal::FullMaybeObjectSlot,
> (v8::internal::SerializerDeserializer::Bytecode)0,
> (v8::internal::SnapshotSpace)6>(v8::internal::Isolate*,
> v8::internal::FullMaybeObjectSlot, unsigned long, unsigned char, bool)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:810
>
> #31 0x000000010c7f89ba in bool
> v8::internal::Deserializer::ReadData<v8::internal::FullMaybeObjectSlot>(v8::internal::FullMaybeObjectSlot,
>
> v8::internal::FullMaybeObjectSlot, v8::internal::SnapshotSpace, unsigned
> long) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:576
>
> #32 0x000000010c7faa8d in
> v8::internal::Deserializer::ReadObject(v8::internal::SnapshotSpace) at
> /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:394
>
> #33 0x000000010c7f89d4 in v8::internal::FullMaybeObjectSlot
> v8::internal::Deserializer::ReadDataCase<v8::internal::FullMaybeObjectSlot,
> (v8::internal::SerializerDeserializer::Bytecode)0,
> (v8::internal::SnapshotSpace)6>(v8::internal::Isolate*,
> v8::internal::FullMaybeObjectSlot, unsigned long, unsigned char, bool)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:810
>
> #34 0x000000010c7f89ba in bool
> v8::internal::Deserializer::ReadData<v8::internal::FullMaybeObjectSlot>(v8::internal::FullMaybeObjectSlot,
>
> v8::internal::FullMaybeObjectSlot, v8::internal::SnapshotSpace, unsigned
> long) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:576
>
> #35 0x000000010c7faa8d in
> v8::internal::Deserializer::ReadObject(v8::internal::SnapshotSpace) at
> /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:394
>
> #36 0x000000010c7f89d4 in v8::internal::FullMaybeObjectSlot
> v8::internal::Deserializer::ReadDataCase<v8::internal::FullMaybeObjectSlot,
> (v8::internal::SerializerDeserializer::Bytecode)0,
> (v8::internal::SnapshotSpace)6>(v8::internal::Isolate*,
> v8::internal::FullMaybeObjectSlot, unsigned long, unsigned char, bool)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:810
>
> #37 0x000000010c7f89ba in bool
> v8::internal::Deserializer::ReadData<v8::internal::FullMaybeObjectSlot>(v8::internal::FullMaybeObjectSlot,
>
> v8::internal::FullMaybeObjectSlot, v8::internal::SnapshotSpace, unsigned
> long) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:576
>
> #38 0x000000010c7faa8d in
> v8::internal::Deserializer::ReadObject(v8::internal::SnapshotSpace) at
> /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:394
>
> #39 0x000000010c7f89d4 in v8::internal::FullMaybeObjectSlot
> v8::internal::Deserializer::ReadDataCase<v8::internal::FullMaybeObjectSlot,
> (v8::internal::SerializerDeserializer::Bytecode)0,
> (v8::internal::SnapshotSpace)6>(v8::internal::Isolate*,
> v8::internal::FullMaybeObjectSlot, unsigned long, unsigned char, bool)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:810
>
> #40 0x000000010c7f89ba in bool
> v8::internal::Deserializer::ReadData<v8::internal::FullMaybeObjectSlot>(v8::internal::FullMaybeObjectSlot,
>
> v8::internal::FullMaybeObjectSlot, v8::internal::SnapshotSpace, unsigned
> long) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:576
>
> #41 0x000000010c7faa8d in
> v8::internal::Deserializer::ReadObject(v8::internal::SnapshotSpace) at
> /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:394
>
> #42 0x000000010c7f89d4 in v8::internal::FullMaybeObjectSlot
> v8::internal::Deserializer::ReadDataCase<v8::internal::FullMaybeObjectSlot,
> (v8::internal::SerializerDeserializer::Bytecode)0,
> (v8::internal::SnapshotSpace)6>(v8::internal::Isolate*,
> v8::internal::FullMaybeObjectSlot, unsigned long, unsigned char, bool)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:810
>
> #43 0x000000010c7f89ba in bool
> v8::internal::Deserializer::ReadData<v8::internal::FullMaybeObjectSlot>(v8::internal::FullMaybeObjectSlot,
>
> v8::internal::FullMaybeObjectSlot, v8::internal::SnapshotSpace, unsigned
> long) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:576
>
> #44 0x000000010c7faa8d in
> v8::internal::Deserializer::ReadObject(v8::internal::SnapshotSpace) at
> /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:394
>
> #45 0x000000010c7f89d4 in v8::internal::FullMaybeObjectSlot
> v8::internal::Deserializer::ReadDataCase<v8::internal::FullMaybeObjectSlot,
> (v8::internal::SerializerDeserializer::Bytecode)0,
> (v8::internal::SnapshotSpace)6>(v8::internal::Isolate*,
> v8::internal::FullMaybeObjectSlot, unsigned long, unsigned char, bool)
> [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:810
>
> #46 0x000000010c7f89ba in bool
> v8::internal::Deserializer::ReadData<v8::internal::FullMaybeObjectSlot>(v8::internal::FullMaybeObjectSlot,
>
> v8::internal::FullMaybeObjectSlot, v8::internal::SnapshotSpace, unsigned
> long) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/deserializer.cc:576
>
> #47 0x000000010c7fc244 in
> v8::internal::RootVisitor::VisitRootPointer(v8::internal::Root, char
> const*, v8::internal::FullObjectSlot) [inlined] at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/objects/visitors.h:73
>
> #48 0x000000010c7fc22c in
> v8::internal::ObjectDeserializer::Deserialize(v8::internal::Isolate*) at
> /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/object-deserializer.cc:45
>
> #49 0x000000010c7fc070 in
> v8::internal::ObjectDeserializer::DeserializeSharedFunctionInfo(v8::internal::Isolate*,
>
> v8::internal::SerializedCodeData const*,
> v8::internal::Handle<v8::internal::String>) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/object-deserializer.cc:29
>
> #50 0x000000010c7f6e70 in
> v8::internal::CodeSerializer::Deserialize(v8::internal::Isolate*,
> v8::internal::ScriptData*, v8::internal::Handle<v8::internal::String>,
> v8::ScriptOriginOptions) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/snapshot/code-serializer.cc:289
>
> #51 0x000000010c42971a in
> v8::internal::Compiler::GetSharedFunctionInfoForScript(v8::internal::Isolate*,
>
> v8::internal::Handle<v8::internal::String>,
> v8::internal::Compiler::ScriptDetails const&, v8::ScriptOriginOptions,
> v8::Extension*, v8::internal::ScriptData*,
> v8::ScriptCompiler::CompileOptions, v8::ScriptCompiler::NoCacheReason,
> v8::internal::NativesFlag) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/codegen/compiler.cc:2024
>
> #52 0x000000010c398b1a in
> v8::ScriptCompiler::CompileUnboundInternal(v8::Isolate*,
> v8::ScriptCompiler::Source*, v8::ScriptCompiler::CompileOptions,
> v8::ScriptCompiler::NoCacheReason) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/api/api.cc:2435
>
> #53 0x000000010c39909f in
> v8::ScriptCompiler::Compile(v8::Local<v8::Context>,
> v8::ScriptCompiler::Source*, v8::ScriptCompiler::CompileOptions,
> v8::ScriptCompiler::NoCacheReason) at /Volumes/EXTREME
> SSD/Documents/depot_tools/v8/v8/src/api/api.cc:2466
>
> #54 0x000000010c36ed77 in
> facebook::V8Runtime::ExecuteScript(v8::Isolate*, v8::Local<v8::String>
> const&, std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> > const&) at
> /Users/wangzitong/Documents/v8executor/src/v8runtime/V8Runtime.mm:317
>
> #55 0x000000010c371131 in
> facebook::V8Runtime::evaluateJavaScript(std::__1::shared_ptr<facebook::jsi::Buffer
>
> const> const&, std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> > const&) at
> /Users/wangzitong/Documents/v8executor/src/v8runtime/V8Runtime.mm:746
>
> #56 0x000000010a762f72 in
> facebook::react::JSIExecutor::loadApplicationScript(std::__1::unique_ptr<facebook::react::JSBigString
>
> const, std::__1::default_delete<facebook::react::JSBigString const> >,
> std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >) at
> /Users/wangzitong/Documents/imeituan/Pods/React-jsiexecutor/src/jsireact/JSIExecutor.cpp:126
>
> #57 0x000000010a73a3f9 in
> facebook::react::NativeToJsBridge::loadApplication(std::__1::unique_ptr<facebook::react::RAMBundleRegistry,
>
> std::__1::default_delete<facebook::react::RAMBundleRegistry> >,
> std::__1::unique_ptr<facebook::react::JSBigString const,
> std::__1::default_delete<facebook::react::JSBigString const> >,
> std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >)::$_0::operator()(facebook::react::JSExecutor*)
> at
> /Users/wangzitong/Documents/imeituan/Pods/React-cxxreact/src/NativeToJsBridge.cpp:119
>
> #58 0x000000010a73a2a2 in
> decltype(std::__1::forward<facebook::react::NativeToJsBridge::loadApplication(std::__1::unique_ptr<facebook::react::RAMBundleRegistry,
>
> std::__1::default_delete<facebook::react::RAMBundleRegistry> >,
> std::__1::unique_ptr<facebook::react::JSBigString const,
> std::__1::default_delete<facebook::react::JSBigString const> >,
> std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char>
> >)::$_0&>(fp)(std::__1::forward<facebook::react::JSExecutor*>(fp0)))
> std::__1::__invoke<facebook::react::NativeToJsBridge::loadApplication(std::__1::unique_ptr<facebook::react::RAMBundleRegistry,
>
> std::__1::default_delete<facebook::react::RAMBundleRegistry> >,
> std::__1::unique_ptr<facebook::react::JSBigString const,
> std::__1::default_delete<facebook::react::JSBigString const> >,
> std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >)::$_0&,
> facebook::react::JSExecutor*>(facebook::react::NativeToJsBridge::loadApplication(std::__1::unique_ptr<facebook::react::RAMBundleRegistry,
>
> std::__1::default_delete<facebook::react::RAMBundleRegistry> >,
> std::__1::unique_ptr<facebook::react::JSBigString const,
> std::__1::default_delete<facebook::react::JSBigString const> >,
> std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >)::$_0&, facebook::react::JSExecutor*&&) at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/type_traits:3545
>
> #59 0x000000010a73a242 in void
> std::__1::__invoke_void_return_wrapper<void>::__call<facebook::react::NativeToJsBridge::loadApplication(std::__1::unique_ptr<facebook::react::RAMBundleRegistry,
>
> std::__1::default_delete<facebook::react::RAMBundleRegistry> >,
> std::__1::unique_ptr<facebook::react::JSBigString const,
> std::__1::default_delete<facebook::react::JSBigString const> >,
> std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >)::$_0&,
> facebook::react::JSExecutor*>(facebook::react::NativeToJsBridge::loadApplication(std::__1::unique_ptr<facebook::react::RAMBundleRegistry,
>
> std::__1::default_delete<facebook::react::RAMBundleRegistry> >,
> std::__1::unique_ptr<facebook::react::JSBigString const,
> std::__1::default_delete<facebook::react::JSBigString const> >,
> std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >)::$_0&, facebook::react::JSExecutor*&&) at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/__functional_base:348
>
> #60 0x000000010a73a1f2 in
> std::__1::__function::__alloc_func<facebook::react::NativeToJsBridge::loadApplication(std::__1::unique_ptr<facebook::react::RAMBundleRegistry,
>
> std::__1::default_delete<facebook::react::RAMBundleRegistry> >,
> std::__1::unique_ptr<facebook::react::JSBigString const,
> std::__1::default_delete<facebook::react::JSBigString const> >,
> std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >)::$_0,
> std::__1::allocator<facebook::react::NativeToJsBridge::loadApplication(std::__1::unique_ptr<facebook::react::RAMBundleRegistry,
>
> std::__1::default_delete<facebook::react::RAMBundleRegistry> >,
> std::__1::unique_ptr<facebook::react::JSBigString const,
> std::__1::default_delete<facebook::react::JSBigString const> >,
> std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >)::$_0>, void
> (facebook::react::JSExecutor*)>::operator()(facebook::react::JSExecutor*&&)
> at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/functional:1546
>
> #61 0x000000010a738cb3 in
> std::__1::__function::__func<facebook::react::NativeToJsBridge::loadApplication(std::__1::unique_ptr<facebook::react::RAMBundleRegistry,
>
> std::__1::default_delete<facebook::react::RAMBundleRegistry> >,
> std::__1::unique_ptr<facebook::react::JSBigString const,
> std::__1::default_delete<facebook::react::JSBigString const> >,
> std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >)::$_0,
> std::__1::allocator<facebook::react::NativeToJsBridge::loadApplication(std::__1::unique_ptr<facebook::react::RAMBundleRegistry,
>
> std::__1::default_delete<facebook::react::RAMBundleRegistry> >,
> std::__1::unique_ptr<facebook::react::JSBigString const,
> std::__1::default_delete<facebook::react::JSBigString const> >,
> std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >)::$_0>, void
> (facebook::react::JSExecutor*)>::operator()(facebook::react::JSExecutor*&&)
> at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/functional:1720
>
> #62 0x000000010a74601d in std::__1::__function::__value_func<void
> (facebook::react::JSExecutor*)>::operator()(facebook::react::JSExecutor*&&)
> const at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/functional:1873
>
> #63 0x000000010a745fa0 in std::__1::function<void
> (facebook::react::JSExecutor*)>::operator()(facebook::react::JSExecutor*)
> const at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/functional:2548
>
> #64 0x000000010a745f68 in
> facebook::react::NativeToJsBridge::runOnExecutorQueue(std::__1::function<void
> (facebook::react::JSExecutor*)>)::$_7::operator()() const at
> /Users/wangzitong/Documents/imeituan/Pods/React-cxxreact/src/NativeToJsBridge.cpp:269
>
> #65 0x000000010a745edd in
> decltype(std::__1::forward<facebook::react::NativeToJsBridge::runOnExecutorQueue(std::__1::function<void
>
> (facebook::react::JSExecutor*)>)::$_7&>(fp)())
> std::__1::__invoke<facebook::react::NativeToJsBridge::runOnExecutorQueue(std::__1::function<void
>
> (facebook::react::JSExecutor*)>)::$_7&>(facebook::react::NativeToJsBridge::runOnExecutorQueue(std::__1::function<void
>
> (facebook::react::JSExecutor*)>)::$_7&) at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/type_traits:3545
>
> #66 0x000000010a745e8d in void
> std::__1::__invoke_void_return_wrapper<void>::__call<facebook::react::NativeToJsBridge::runOnExecutorQueue(std::__1::function<void
>
> (facebook::react::JSExecutor*)>)::$_7&>(facebook::react::NativeToJsBridge::runOnExecutorQueue(std::__1::function<void
>
> (facebook::react::JSExecutor*)>)::$_7&) at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/__functional_base:348
>
> #67 0x000000010a745e5d in
> std::__1::__function::__alloc_func<facebook::react::NativeToJsBridge::runOnExecutorQueue(std::__1::function<void
>
> (facebook::react::JSExecutor*)>)::$_7,
> std::__1::allocator<facebook::react::NativeToJsBridge::runOnExecutorQueue(std::__1::function<void
>
> (facebook::react::JSExecutor*)>)::$_7>, void ()>::operator()() at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/functional:1546
>
> #68 0x000000010a7449be in
> std::__1::__function::__func<facebook::react::NativeToJsBridge::runOnExecutorQueue(std::__1::function<void
>
> (facebook::react::JSExecutor*)>)::$_7,
> std::__1::allocator<facebook::react::NativeToJsBridge::runOnExecutorQueue(std::__1::function<void
>
> (facebook::react::JSExecutor*)>)::$_7>, void ()>::operator()() at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/functional:1720
>
> #69 0x000000010a5c6755 in std::__1::__function::__value_func<void
> ()>::operator()() const at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/functional:1873
>
> #70 0x000000010a5c5e15 in std::__1::function<void ()>::operator()() const
> at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/functional:2548
>
> #71 0x000000010a5c5b88 in
> facebook::react::tryAndReturnError(std::__1::function<void ()> const&) at
> /Users/wangzitong/Documents/imeituan/Pods/React/React/CxxModule/RCTCxxUtils.mm:72
>
> #72 0x000000010a61ccd1 in
> facebook::react::RCTMessageThread::tryFunc(std::__1::function<void ()>
> const&) at
> /Users/wangzitong/Documents/imeituan/Pods/React/React/CxxBridge/RCTMessageThread.mm:59
>
> #73 0x000000010a621d43 in
> facebook::react::RCTMessageThread::runOnQueue(std::__1::function<void
> ()>&&)::$_1::operator()() const at
> /Users/wangzitong/Documents/imeituan/Pods/React/React/CxxBridge/RCTMessageThread.mm:72
>
> #74 0x000000010a621ccd in
> decltype(std::__1::forward<facebook::react::RCTMessageThread::runOnQueue(std::__1::function<void
>
> ()>&&)::$_1&>(fp)())
> std::__1::__invoke<facebook::react::RCTMessageThread::runOnQueue(std::__1::function<void
>
> ()>&&)::$_1&>(facebook::react::RCTMessageThread::runOnQueue(std::__1::function<void
>
> ()>&&)::$_1&) at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/type_traits:3545
>
> #75 0x000000010a621c7d in void
> std::__1::__invoke_void_return_wrapper<void>::__call<facebook::react::RCTMessageThread::runOnQueue(std::__1::function<void
>
> ()>&&)::$_1&>(facebook::react::RCTMessageThread::runOnQueue(std::__1::function<void
>
> ()>&&)::$_1&) at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/__functional_base:348
>
> #76 0x000000010a621c4d in
> std::__1::__function::__alloc_func<facebook::react::RCTMessageThread::runOnQueue(std::__1::function<void
>
> ()>&&)::$_1,
> std::__1::allocator<facebook::react::RCTMessageThread::runOnQueue(std::__1::function<void
>
> ()>&&)::$_1>, void ()>::operator()() at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/functional:1546
>
> #77 0x000000010a6207ae in
> std::__1::__function::__func<facebook::react::RCTMessageThread::runOnQueue(std::__1::function<void
>
> ()>&&)::$_1,
> std::__1::allocator<facebook::react::RCTMessageThread::runOnQueue(std::__1::function<void
>
> ()>&&)::$_1>, void ()>::operator()() at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/functional:1720
>
> #78 0x000000010a5c6755 in std::__1::__function::__value_func<void
> ()>::operator()() const at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/functional:1873
>
> #79 0x000000010a5c5e15 in std::__1::function<void ()>::operator()() const
> at
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/functional:2548
>
> #80 0x000000010a61c92c in invocation function for block in
> facebook::react::RCTMessageThread::runAsync(std::__1::function<void ()>) at
> /Users/wangzitong/Documents/imeituan/Pods/React/React/CxxBridge/RCTMessageThread.mm:39
>
> #81 0x00007fff203a85db in __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ ()
>
> #82 0x00007fff203a79ef in __CFRunLoopDoBlocks ()
>
> #83 0x00007fff203a2a6d in __CFRunLoopRun ()
>
> #84 0x00007fff203a1b9e in CFRunLoopRunSpecific ()
>
> #85 0x000000010a596071 in +[RCTCxxBridge runRunLoop] at
> /Users/wangzitong/Documents/imeituan/Pods/React/React/CxxBridge/RCTCxxBridge.mm:272
>
> #86 0x00007fff2086f521 in __NSThread__start__ ()
>
> #87 0x00007fff5dcdc109 in _pthread_start ()
>
> #88 0x00007fff5dcd7b8b in thread_start ()
>
>
> And I have digged out some facts:
>
> 1. If codecache is created with an engine that is already attached with a
> snapshot, not an empty engine, no crash.
>
> 2. If I annotate some code below in startup.js, no crash.
>
> function shouldUseNative() {
> var test3 = {};
> 'abcdefghijklmnopqrst'.split('').forEach(function (letter) {
> test3[letter] = letter;
> });
> if (Object.keys(test3).join('') !== 'abcdefghijklmnopqrst') {
> return false;
> }
> return true;
> }
> shouldUseNative();
>
>
> V8 version:*7.8.279.23*
>
> Can someone know what causes the crash? Thanks.
>
--
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