diff --git a/src/kernel/thread_manager.rs b/src/kernel/thread_manager.rs
index 28e5eaa..466d14e 100644
--- a/src/kernel/thread_manager.rs
+++ b/src/kernel/thread_manager.rs
@@ -28,7 +28,7 @@ impl<'a> ThreadManager<'a> {
     }
 
     /// Start a thread, attaching it to a process
-    pub fn start_thread(&mut self, thread: &mut Thread, owner: Process, func_pc: i64, argument: i64) -> Result<(), ErrorCode> {
+    pub fn start_thread(&mut self, mut thread: Thread, owner: Process, func_pc: i64, argument: i64) -> Result<(), ErrorCode> {
         thread.process = Option::Some(owner);
         let ptr = 0; // todo addrspace
         thread.init_thread_context(func_pc, ptr, argument);
@@ -36,8 +36,8 @@ impl<'a> ThreadManager<'a> {
         thread.init_simulator_context(base_stack_addr);
         thread.process.as_mut().unwrap().num_thread += 1;
         let thread_m = Rc::new(thread);
-        // self.get_g_alive().push(Rc::clone(thread));
-        // self.g_scheduler().ready_to_run(Rc::clone(&thread));
+        self.get_g_alive().push(Rc::clone(&thread_m));
+        self.g_scheduler().ready_to_run(Rc::clone(&thread_m));
         Result::Ok(())
     }
 
diff --git a/src/simulator/interrupt.rs b/src/simulator/interrupt.rs
index 9cede5b..e63e0af 100644
--- a/src/simulator/interrupt.rs
+++ b/src/simulator/interrupt.rs
@@ -12,10 +12,10 @@ impl Interrupt {
         }
     }
 
-    pub fn set_status(&mut self, newStatus: InterruptStatus) -> InterruptStatus {
+    pub fn set_status(&mut self, new_status: InterruptStatus) -> InterruptStatus {
         let old = self.level;
-        self.level = newStatus;
-        if newStatus == InterruptStatus::InterruptOn && old == InterruptStatus::InterruptOff {
+        self.level = new_status;
+        if new_status == InterruptStatus::InterruptOn && old == InterruptStatus::InterruptOff {
             self.one_tick(1);
         }
         old