src/share/vm/runtime/deoptimization.cpp

*** 1389,1399 ****
      // to the runtime the stack is no longer guarded. Reguard the
      // stack otherwise if we return to the uncommon trap blob and the
      // stack bang causes a stack overflow we crash.
      assert(THREAD->is_Java_thread(), "only a java thread can be here");
      JavaThread* thread = (JavaThread*)THREAD;
!     bool guard_pages_enabled = thread->stack_yellow_zone_enabled();
      if (!guard_pages_enabled) guard_pages_enabled = thread->reguard_stack();
      assert(guard_pages_enabled, "stack banging in uncommon trap blob may cause crash");
    }
  }
  
--- 1389,1399 ----
      // to the runtime the stack is no longer guarded. Reguard the
      // stack otherwise if we return to the uncommon trap blob and the
      // stack bang causes a stack overflow we crash.
      assert(THREAD->is_Java_thread(), "only a java thread can be here");
      JavaThread* thread = (JavaThread*)THREAD;
!     bool guard_pages_enabled = thread->stack_guards_enabled();
      if (!guard_pages_enabled) guard_pages_enabled = thread->reguard_stack();
      assert(guard_pages_enabled, "stack banging in uncommon trap blob may cause crash");
    }
  }