Merge pull request #77 from zhaiqiming/main

[os4-ref] fix : TaskStatus in kernel is different from TaskStatus in user mode.

Author: chyyuu

os4-ref/src/task/task.rs

@@ -58,6 +58,7 @@ impl TaskControlBlock {
 #[derive(Copy, Clone, PartialEq)]
 /// task status: UnInit, Ready, Running, Exited
 pub enum TaskStatus {
+    UnInit,
     Ready,
     Running,
     Exited,