log trace -> info. change first userapp to initproc

Author: chyyuu-tsinghua-cs

os/src/main.rs

@@ -91,7 +91,7 @@ fn main(hartid: usize) {
     }
     println!("[kernel] Hello, world!");
     mm::init_heap();
-    logging::init(Some("trace"));
+    logging::init(Some("info"));
     println!("init logging");
     // polyhal::init_interrupt(); done in polyhal::CPU::rust_main()
 

os/src/task/mod.rs

@@ -96,7 +96,7 @@ pub fn exit_current_and_run_next(exit_code: i32) {
 
 lazy_static! {
     pub static ref INITPROC: Arc<TaskControlBlock> = Arc::new({
-        let inode = open_file("user_shell", OpenFlags::RDONLY).unwrap();
+        let inode = open_file("initproc", OpenFlags::RDONLY).unwrap();
         let v = inode.read_all();
         TaskControlBlock::new(v.as_slice())
     });