Embedding v8 4.6.88.

Running a memory-consuming script.  Sometimes I get a fatal error callback 
due to "process out of memory" which I now handle.  Other times v8 just 
crashes in CollectGarbage:

2016-08-25 17:25:49.649 Critical: #5 <signal handler called>
2016-08-25 17:25:49.649 Critical: #6 0x00007f71f69d67fd in void 
v8::internal::FlexibleBodyVisitor<v8::internal::IncrementalMarkingMarkingVisitor,
 
v8::internal::JSObject::BodyDescriptor, 
void>::VisitSpecialized<32>(v8::internal::Map*, v8::internal::HeapObject*) 
() from lib/libv8.so
2016-08-25 17:25:49.649 Critical: #7 0x00007f71f69d0857 in 
v8::internal::IncrementalMarking::Step(long, 
v8::internal::IncrementalMarking::CompletionAction, 
v8::internal::IncrementalMarking::ForceMarkingAction, 
v8::internal::IncrementalMarking::ForceCompletionAction) () from 
lib/libv8.so
2016-08-25 17:25:49.649 Critical: #8 0x00007f71f69a575e in 
v8::internal::Heap::CollectGarbage(v8::internal::GarbageCollector, char 
const*, char const*, v8::GCCallbackFlags) () from lib/libv8.so
2016-08-25 17:25:49.649 Critical: #9 0x00007f71f695bb37 in 
v8::internal::Factory::NewUninitializedFixedArray(int) () from lib/libv8.so
2016-08-25 17:25:49.649 Critical: #10 0x00007f71f69673a7 in 
v8::internal::Factory::NewJSArrayStorage(v8::internal::Handle<v8::internal::JSArray>,
 
int, int, v8::internal::ArrayStorageAllocationMode) () from lib/libv8.so
2016-08-25 17:25:49.649 Critical: #11 0x00007f71f6967172 in 
v8::internal::Factory::NewJSArray(v8::internal::ElementsKind, int, int, 
v8::internal::Strength, v8::internal::ArrayStorageAllocationMode, 
v8::internal::PretenureFlag) () from lib/libv8.so
2016-08-25 17:25:49.649 Critical: #12 0x00007f71f6830a53 in 
v8::internal::Builtin_ArraySplice(int, v8::internal::Object**, 
v8::internal::Isolate*) () from lib/libv8.so

Is this a known bug?  Is it fixed in a more recent release?

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