1 files changed, 18 insertions, 2 deletions
diff --git a/user/grind.c b/user/grind.c
index 14e2aae..d11b20b 100644
--- a/user/grind.c
+++ b/user/grind.c
@@ -292,8 +292,8 @@ go(int which_child)
   }
 }
 
-int
-main()
+void
+iter()
 {
   unlink("a");
   unlink("b");
@@ -331,3 +331,19 @@ main()
 
   exit(0);
 }
+
+int
+main()
+{
+  while(1){
+    int pid = fork();
+    if(pid == 0){
+      iter();
+      exit(0);
+    }
+    if(pid > 0){
+      wait(0);
+    }
+    sleep(20);
+  }
+}