diff --git a/easytier/src/common/mod.rs b/easytier/src/common/mod.rs
index 7258bcc..a5bd69b 100644
--- a/easytier/src/common/mod.rs
+++ b/easytier/src/common/mod.rs
@@ -4,7 +4,7 @@ use std::{
     io::Write as _,
     sync::{Arc, Mutex},
 };
-use tokio::task::JoinSet;
+use tokio::{task::JoinSet, time::timeout};
 use tracing::Instrument;
 
 pub mod compressor;
@@ -47,16 +47,13 @@ pub fn join_joinset_background<T: Debug + Send + Sync + 'static>(
     origin: String,
 ) {
     let js = Arc::downgrade(&js);
+    let o = origin.clone();
     tokio::spawn(
         async move {
-            loop {
+            while js.strong_count() > 0 {
                 tokio::time::sleep(std::time::Duration::from_secs(1)).await;
-                if js.weak_count() == 0 {
-                    tracing::info!("joinset task exit");
-                    break;
-                }
 
-                future::poll_fn(|cx| {
+                let fut = future::poll_fn(|cx| {
                     let Some(js) = js.upgrade() else {
                         return std::task::Poll::Ready(());
                     };
@@ -64,15 +61,24 @@ pub fn join_joinset_background<T: Debug + Send + Sync + 'static>(
                     let mut js = js.lock().unwrap();
                     while !js.is_empty() {
                         let ret = js.poll_join_next(cx);
-                        if ret.is_pending() {
-                            return std::task::Poll::Pending;
+                        match ret {
+                            std::task::Poll::Ready(Some(_)) => {
+                                continue;
+                            }
+                            std::task::Poll::Ready(None) => {
+                                break;
+                            }
+                            std::task::Poll::Pending => {
+                                return std::task::Poll::Pending;
+                            }
                         }
                     }
-
                     std::task::Poll::Ready(())
-                })
-                .await;
+                });
+
+                let _ = timeout(std::time::Duration::from_secs(5), fut).await;
             }
+            tracing::debug!(?o, "joinset task exit");
         }
         .instrument(tracing::info_span!(
             "join_joinset_background",
@@ -167,5 +173,6 @@ mod tests {
         drop(js);
         tokio::time::sleep(std::time::Duration::from_secs(2)).await;
         assert_eq!(weak_js.weak_count(), 0);
+        assert_eq!(weak_js.strong_count(), 0);
     }
 }
diff --git a/easytier/src/peers/foreign_network_manager.rs b/easytier/src/peers/foreign_network_manager.rs
index c249e7d..dfc143c 100644
--- a/easytier/src/peers/foreign_network_manager.rs
+++ b/easytier/src/peers/foreign_network_manager.rs
@@ -24,6 +24,7 @@ use crate::{
         config::{ConfigLoader, TomlConfigLoader},
         error::Error,
         global_ctx::{ArcGlobalCtx, GlobalCtx, GlobalCtxEvent, NetworkIdentity},
+        join_joinset_background,
         stun::MockStunInfoCollector,
         PeerId,
     },
@@ -181,6 +182,15 @@ impl ForeignNetworkEntry {
             }
         }
 
+        impl Drop for RpcTransport {
+            fn drop(&mut self) {
+                tracing::debug!(
+                    "drop rpc transport for foreign network manager, my_peer_id: {:?}",
+                    self.my_peer_id
+                );
+            }
+        }
+
         let (rpc_transport_sender, peer_rpc_tspt_recv) = mpsc::unbounded_channel();
         let tspt = RpcTransport {
             my_peer_id,
@@ -216,7 +226,6 @@ impl ForeignNetworkEntry {
                     .list_global_foreign_peer(&self.network_identity)
                     .await;
                 let local = peer_map.list_peers_with_conn().await;
-                tracing::debug!(?global, ?local, ?self.my_peer_id, "list peers in foreign network manager");
                 global.extend(local.iter().cloned());
                 global
                     .into_iter()
@@ -426,7 +435,7 @@ pub struct ForeignNetworkManager {
 
     data: Arc<ForeignNetworkManagerData>,
 
-    tasks: Mutex<JoinSet<()>>,
+    tasks: Arc<std::sync::Mutex<JoinSet<()>>>,
 }
 
 impl ForeignNetworkManager {
@@ -444,6 +453,9 @@ impl ForeignNetworkManager {
             lock: std::sync::Mutex::new(()),
         });
 
+        let tasks = Arc::new(std::sync::Mutex::new(JoinSet::new()));
+        join_joinset_background(tasks.clone(), "ForeignNetworkManager".to_string());
+
         Self {
             my_peer_id,
             global_ctx,
@@ -451,7 +463,7 @@ impl ForeignNetworkManager {
 
             data,
 
-            tasks: Mutex::new(JoinSet::new()),
+            tasks,
         }
     }
 
@@ -503,7 +515,7 @@ impl ForeignNetworkManager {
         let data = self.data.clone();
         let network_name = entry.network.network_name.clone();
         let mut s = entry.global_ctx.subscribe();
-        self.tasks.lock().await.spawn(async move {
+        self.tasks.lock().unwrap().spawn(async move {
             while let Ok(e) = s.recv().await {
                 match &e {
                     GlobalCtxEvent::PeerRemoved(peer_id) => {
diff --git a/easytier/src/peers/peer_conn_ping.rs b/easytier/src/peers/peer_conn_ping.rs
index 0e5aeb1..93e0afb 100644
--- a/easytier/src/peers/peer_conn_ping.rs
+++ b/easytier/src/peers/peer_conn_ping.rs
@@ -84,9 +84,7 @@ impl PingIntervalController {
         self.throughput.rx_packets() > self.last_throughput.rx_packets()
     }
 
-    #[tracing::instrument]
     fn should_send_ping(&mut self) -> bool {
-        tracing::trace!(?self, "check should_send_ping");
         if self.loss_counter.load(Ordering::Relaxed) > 0 {
             self.backoff_idx = 0;
         } else if self.tx_increase() && !self.rx_increase() {
@@ -253,6 +251,13 @@ impl PeerConnPinger {
                         continue;
                     }
 
+                    tracing::debug!(
+                        "pingpong controller send pingpong task, seq: {}, node_id: {}, controller: {:?}",
+                        req_seq,
+                        my_node_id,
+                        controller  
+                    );
+
                     let mut sink = sink.clone();
                     let receiver = ctrl_resp_sender.subscribe();
                     let ping_res_sender = ping_res_sender.clone();
diff --git a/easytier/src/peers/peer_ospf_route.rs b/easytier/src/peers/peer_ospf_route.rs
index f72e86a..19a418c 100644
--- a/easytier/src/peers/peer_ospf_route.rs
+++ b/easytier/src/peers/peer_ospf_route.rs
@@ -1450,9 +1450,6 @@ impl PeerRouteServiceImpl {
         let my_peer_id = self.my_peer_id;
 
         let (peer_infos, conn_bitmap, foreign_network) = self.build_sync_request(&session);
-        tracing::trace!(?foreign_network, "building sync_route request. my_id {:?}, pper_id: {:?}, peer_infos: {:?}, conn_bitmap: {:?}, synced_route_info: {:?} session: {:?}",
-                       my_peer_id, dst_peer_id, peer_infos, conn_bitmap, self.synced_route_info, session);
-
         if peer_infos.is_none()
             && conn_bitmap.is_none()
             && foreign_network.is_none()
@@ -1462,6 +1459,9 @@ impl PeerRouteServiceImpl {
             return true;
         }
 
+        tracing::debug!(?foreign_network, "sync_route request need send to peer. my_id {:?}, pper_id: {:?}, peer_infos: {:?}, conn_bitmap: {:?}, synced_route_info: {:?} session: {:?}",
+                       my_peer_id, dst_peer_id, peer_infos, conn_bitmap, self.synced_route_info, session);
+
         session
             .need_sync_initiator_info
             .store(false, Ordering::Relaxed);
@@ -1728,7 +1728,6 @@ impl RouteSessionManager {
         Ok(session)
     }
 
-    #[tracing::instrument(skip(self))]
     async fn maintain_sessions(&self, service_impl: Arc<PeerRouteServiceImpl>) -> bool {
         let mut cur_dst_peer_id_to_initiate = None;
         let mut next_sleep_ms = 0;
@@ -1764,8 +1763,6 @@ impl RouteSessionManager {
                 .map(|x| *x)
                 .collect::<Vec<_>>();
 
-            tracing::trace!(?service_impl.my_peer_id, ?peers, ?session_peers, ?initiator_candidates, "maintain_sessions begin");
-
             if initiator_candidates.is_empty() {
                 next_sleep_ms = 1000;
                 continue;
diff --git a/easytier/src/peers/peer_task.rs b/easytier/src/peers/peer_task.rs
index 0fcb89e..aa172b1 100644
--- a/easytier/src/peers/peer_task.rs
+++ b/easytier/src/peers/peer_task.rs
@@ -83,12 +83,6 @@ where
                 }
             }
 
-            tracing::debug!(
-                ?peers_to_connect,
-                ?to_remove,
-                "got peers to connect and remove"
-            );
-
             for key in to_remove {
                 if let Some((_, task)) = peer_task_map.remove(&key) {
                     task.abort();
@@ -115,7 +109,6 @@ where
                         .insert(item.clone(), launcher.launch_task(&data, item).await.into());
                 }
             } else if peer_task_map.is_empty() {
-                tracing::debug!("all task done");
                 launcher.all_task_done(&data).await;
             }