src/os/windows/vm/os_windows.cpp

@@ -2574,10 +2574,11 @@
           }
         }
         // Yellow zone violation.  The o/s has unprotected the first yellow
         // zone page for us.  Note:  must call disable_stack_yellow_zone to
         // update the enabled status, even if the zone contains only one page.
+        assert(thread->thread_state() != _thread_in_vm, "Undersized StackShadowPages");
         thread->disable_stack_yellow_reserved_zone();
         // If not in java code, return and hope for the best.
         return in_java
             ? Handle_Exception(exceptionInfo, SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW))
             :  EXCEPTION_CONTINUE_EXECUTION;