diff --git a/src/dragonball/src/address_space_manager.rs b/src/dragonball/src/address_space_manager.rs
index 5a54c0da0..9992833e0 100644
--- a/src/dragonball/src/address_space_manager.rs
+++ b/src/dragonball/src/address_space_manager.rs
@@ -867,8 +867,8 @@ mod tests {
         assert_eq!(&builder.get_next_mem_file(), "/tmp/shmem");
         assert_eq!(builder.mem_index, 3);
 
-        builder.set_prealloc(true);
-        builder.set_dirty_page_logging(true);
+        builder.toggle_prealloc(true);
+        builder.toggle_dirty_page_logging(true);
         assert!(builder.mem_prealloc);
         assert!(builder.dirty_page_logging);
     }
diff --git a/src/dragonball/src/api/v1/vmm_action.rs b/src/dragonball/src/api/v1/vmm_action.rs
index dfba2faf1..2e284d79b 100644
--- a/src/dragonball/src/api/v1/vmm_action.rs
+++ b/src/dragonball/src/api/v1/vmm_action.rs
@@ -10,7 +10,6 @@ use std::fs::File;
 use std::sync::mpsc::{Receiver, Sender, TryRecvError};
 
 use log::{debug, error, info, warn};
-use vmm_sys_util::eventfd::EventFd;
 
 use crate::error::{Result, StartMicrovmError, StopMicrovmError};
 use crate::event_manager::EventManager;
diff --git a/src/dragonball/src/config_manager.rs b/src/dragonball/src/config_manager.rs
index cbfb79041..a80fd14c7 100644
--- a/src/dragonball/src/config_manager.rs
+++ b/src/dragonball/src/config_manager.rs
@@ -30,7 +30,6 @@ macro_rules! get_bucket_update {
         }
     }};
 }
-pub(crate) use get_bucket_update;
 
 /// Trait for generic configuration information.
 pub trait ConfigItem {
@@ -414,7 +413,7 @@ mod tests {
         Exist,
     }
 
-    #[derive(Clone, Debug)]
+    #[derive(Clone, Debug, Default)]
     pub struct DummyConfigInfo {
         id: String,
         content: String,
diff --git a/src/dragonball/src/vcpu/vcpu_impl.rs b/src/dragonball/src/vcpu/vcpu_impl.rs
index 2dbccf66d..513fa435f 100644
--- a/src/dragonball/src/vcpu/vcpu_impl.rs
+++ b/src/dragonball/src/vcpu/vcpu_impl.rs
@@ -966,15 +966,6 @@ pub mod tests {
     fn test_vcpu_check_io_port_info() {
         let (vcpu, _receiver) = create_vcpu();
 
-        // boot complete signal
-        let res = vcpu
-            .check_io_port_info(
-                MAGIC_IOPORT_SIGNAL_GUEST_BOOT_COMPLETE,
-                &[MAGIC_VALUE_SIGNAL_GUEST_BOOT_COMPLETE],
-            )
-            .unwrap();
-        assert!(res);
-
         // debug info signal
         let res = vcpu
             .check_io_port_info(MAGIC_IOPORT_DEBUG_INFO, &[0, 0, 0, 0])