Checkpoint page-table version for SMP

Includes code for TLB shootdown (which actually seems unnecessary for xv6)

1 files changed, 1 insertions, 5 deletions

diff --git a/exec.c b/exec.c
index 65de312..6ded59f 100644
--- a/exec.c
+++ b/exec.c
@@ -95,14 +95,10 @@ exec(char *path, char **argv)
   proc->tf->eip = elf.entry;  // main
   proc->tf->esp = sp;
 
-  // printstack();
-
-  loadvm(proc);
+  loadvm(proc); 
 
   freevm(oldpgdir);
 
-  // printstack(); 
-
   return 0;
 
  bad: