现象说明:

在 服务器端 与 开发板之间连接成功后, 就不会出现 任何错误,工作也都正常
    当 服务器端断开连接后,大概 5-10s 左右就会出现  错误, 另外还会提示
Assertion "recvmbox must be deallocated before calling this function" failed at line 803 in ..\Middlewares\Third_Party\LwIP\src\api\api_msg.c
Assertion "acceptmbox must be deallocated before calling this function" failed at line 806 in ..\Middlewares\Third_Party\LwIP\src\api\api_msg.c


请问 上面的 问题该如何解决啊 ??

使用的是 embOS + Lwip 组合

根据协议栈的函数，调试一下，看看有没有free  mbox

void
netconn_free(struct netconn *conn)
{
  LWIP_ASSERT("CB must be deallocated outside this function", conn->pcb.tcp == NULL);

#if LWIP_NETCONN_FULLDUPLEX
  /* in fullduplex, netconn is drained here */
  netconn_drain(conn);
#endif /* LWIP_NETCONN_FULLDUPLEX */

  LWIP_ASSERT("recvmbox must be deallocated before calling this function",
              !sys_mbox_valid(&conn->recvmbox));
#if LWIP_TCP
  LWIP_ASSERT("acceptmbox must be deallocated before calling this function",
              !sys_mbox_valid(&conn->acceptmbox));