fix race in holding() check in acquire()

give cpu1 a TSS and gdt for when it enters scheduler()
and a pseudo proc[] entry for each cpu
cpu0 waits for each other cpu to start up
read() for files

1 files changed, 1 insertions, 1 deletions

diff --git a/spinlock.h b/spinlock.h
index ee48a7e..f866b4c 100644
--- a/spinlock.h
+++ b/spinlock.h
@@ -1,6 +1,6 @@
 struct spinlock {
   char *name;
   uint locked;
-  uint pc;
+  uint pcs[10];
   int cpu;
 };