Close interrupt during trapframe construction.

Ubiquitous/XiZi_AIoT/services/lib/ipc/libipc.c

@@ -159,6 +159,7 @@ void delay_session(void)
 void ipc_server_loop(struct IpcNode* ipc_node)
 {
     struct Session session_list[NR_MAX_SESSION];
+    memset(session_list, 0, sizeof(session_list));
     for (;;) {
         /* if connect sessions are greater than NR_MAX_SESSION,
             a full round will require multiple polls.

Ubiquitous/XiZi_AIoT/services/lib/ipc/libipc.h

@@ -37,7 +37,7 @@ Modification:
 #include "ipcargs.h"
 #include "session.h"
 
-#define NR_MAX_SESSION 16
+#define NR_MAX_SESSION 32
 #define IPC_MSG_MAGIC 0xABCDDCBA
 
 typedef struct {