Add debug logging for request_id tracking and pending list dump

src/route_ping.c

@@ -100,6 +100,19 @@ void route_ping_handle_resp(struct ROUTE_BGP* bgp, struct ETCP_CONN* from_conn,
     }
     DEBUG_WARN(DEBUG_CATEGORY_BGP, "request_id=%08x not found in pending list",
                (unsigned)resp->request_id);
+    // Dump all pending entries for debugging
+    struct route_ping_pending* dump_cur = bgp->ping_pending;
+    int dump_count = 0;
+    while (dump_cur) {
+        DEBUG_WARN(DEBUG_CATEGORY_BGP, "  pending[%d]: request_id=%08x via=%s",
+                   dump_count, (unsigned)dump_cur->request_id,
+                   dump_cur->via_conn ? dump_cur->via_conn->log_name : "NULL");
+        dump_cur = dump_cur->next;
+        dump_count++;
+    }
+    if (dump_count == 0) {
+        DEBUG_WARN(DEBUG_CATEGORY_BGP, "  pending list is EMPTY");
+    }
 }
 
 void route_ping_cancel_for_conn(struct ROUTE_BGP* bgp, struct ETCP_CONN* conn) {
@@ -164,7 +177,10 @@ int route_ping_send_req_addr(struct ROUTE_BGP* bgp, struct ETCP_CONN* to_conn,
     }
     req_pkt->cmd = ETCP_ID_ROUTE_ENTRY;
     req_pkt->subcmd = ROUTE_SUBCMD_PING_REQ;
-    req_pkt->request_id = bgp->next_ping_req_id++;
+    uint32_t new_req_id = bgp->next_ping_req_id++;
+    req_pkt->request_id = new_req_id;
+    DEBUG_TRACE(DEBUG_CATEGORY_BGP, "assigned request_id=%08x (next was %08x)", 
+                (unsigned)new_req_id, (unsigned)(new_req_id + 1));
     req_pkt->count = count;
     req_pkt->interval_ms = interval_ms;
     req_pkt->timeout_ms = timeout_ms;
@@ -199,6 +215,8 @@ int route_ping_send_req_addr(struct ROUTE_BGP* bgp, struct ETCP_CONN* to_conn,
     }
     pending->bgp = bgp;
     pending->request_id = req_pkt->request_id;
+    DEBUG_TRACE(DEBUG_CATEGORY_BGP, "pending stored request_id=%08x (from req_pkt=%08x)",
+                (unsigned)pending->request_id, (unsigned)req_pkt->request_id);
     pending->callback = cb;
     pending->arg = arg;
     pending->via_conn = to_conn;