tweak

e9367434 · rsc · b02e13f0 · e9367434
--- a/trap.c
+++ b/trap.c
@@ -43,6 +43,7 @@ trap(struct trapframe *tf)
    return;
  }

+  // PAGEBREAK: 10
  // Increment nlock to make sure interrupts stay off
  // during interrupt handler.  Decrement before returning.
  cpus[cpu()].nlock++;