Postpone interrupts during marking garbage collection. This allows the check...

src/mark-compact.cc

Index: src/mark-compact.cc
===================================================================
--- src/mark-compact.cc	(revision 6005)
+++ src/mark-compact.cc	(working copy)
@@ -1281,6 +1281,11 @@
 
 void MarkCompactCollector::MarkLiveObjects() {
   GCTracer::Scope gc_scope(tracer_, GCTracer::Scope::MC_MARK);
+  // The recursive GC marker detects when it is nearing stack overflow,
+  // and switches to a different marking system.  JS interrupts interfere
+  // with the C stack limit check.
+  PostponeInterruptsScope postpone;
+
 #ifdef DEBUG
   ASSERT(state_ == PREPARE_GC);
   state_ = MARK_LIVE_OBJECTS;