Always move zombie children to init

kernel/src/process/exit.rs

@@ -82,8 +82,10 @@ fn move_process_children(
 ) -> core::result::Result<(), ()> {
     // Take the lock first to avoid the race when the `reaper_process` is exiting concurrently.
     let mut reaper_process_children = reaper_process.children().lock();
+
+    let is_init = is_init_process(&reaper_process);
     let is_zombie = reaper_process.status().is_zombie();
-    if is_zombie {
+    if !is_init && is_zombie {
         return Err(());
     }