interrupts could be recursive since lapic_eoi() called before rti

so fast interrupts overflow the kernel stack
fix: cli() before lapic_eoi()

1 files changed, 2 insertions, 1 deletions

diff --git a/spinlock.h b/spinlock.h
index f866b4c..f124f15 100644
--- a/spinlock.h
+++ b/spinlock.h
@@ -1,6 +1,7 @@
 struct spinlock {
+  uint magic;
   char *name;
   uint locked;
-  uint pcs[10];
   int cpu;
+  uint pcs[10];
 };