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我正在尝试在 Contiki-ng 中实现我的集群版本。我从这段代码中获得了一些灵感：Cluster example

我所做的基本上是创建了两个连接：

static struct simple_udp_connection broad_conn;  
static struct simple_udp_connection uni_conn;

然而，尽管代码在 cooja 中编译并开始运行，但它停止向我显示堆栈中的错误。我跟踪了错误消息，它看起来像是来自 stack-check.c 中的这部分代码：

  if(p >= (uint8_t*)GET_STACK_ORIGIN()) {
    /* This means the stack is screwed. */
    return -1;
  }
 actual = stack_check_get_usage();
allowed = stack_check_get_reserved_size();
if(actual < 0 || allowed < 0) {
LOG_ERR("Check in inconsistent state: %" PRId32 " vs. %" PRId32 "\n", actual, allowed);

没有内存溢出，除了回调函数，代码中什么都没有。我唯一想到的是这是因为连接，但我不明白为什么。这是nodes.c的代码：

    #include "contiki.h"              
    #include "simple-udp.h"          
    #include "sys/log.h"              
    #define LOG_MODULE "SensorNode"   
    #define LOG_LEVEL LOG_LEVEL_INFO 
    #define UDP_PORT_BROADCAST 1234   
    #define UDP_PORT_UNICAST 4321     
    static struct simple_udp_connection broadcast_conn;  
    static struct simple_udp_connection unicast_conn;    
    static uip_ipaddr_t CH_address; 

PROCESS(nodes_process, "Nodes");
AUTOSTART_PROCESSES(&nodes_process);
/*---------------------------------Not Me------------------------------------------*/
static void
broadcast_receiver(struct simple_udp_connection *c,
        const uip_ipaddr_t *sender_addr,
        uint16_t sender_port,
        const uip_ipaddr_t *receiver_addr,
        uint16_t receiver_port,
        const uint8_t *data,
        uint16_t datalen)
{
    LOG_INFO("Received broadcast '%.*s' from ", datalen, (char *) data);
    LOG_INFO_6ADDR(sender_addr);
    LOG_INFO_("\n");
    uip_ipaddr_copy(&CH_address, sender_addr); 
}
/*---------------------------------------------------------------------------*/
static void
unicast_receiver(struct simple_udp_connection *c,
        const uip_ipaddr_t *sender_addr,
        uint16_t sender_port,
        const uip_ipaddr_t *receiver_addr,
        uint16_t receiver_port,
        const uint8_t *data,
        uint16_t datalen)
{
    LOG_INFO("Received reply '%.*s' from ", datalen, (char *) data);
    LOG_INFO_6ADDR(sender_addr);
    LOG_INFO_("\n");
}

/*---------------------------------------------------------------------------*/
PROCESS_THREAD(nodes_process, ev, data)
{

    static struct etimer periodic_timer; 
    static unsigned count;
    static char str[32];

    PROCESS_BEGIN();
     /* Not me also */
    /* Initialize UDP broadcast connection */
    simple_udp_register(&broadcast_conn, UDP_PORT_BROADCAST, NULL,
                        UDP_PORT_BROADCAST, broadcast_receiver);

    /* Initialize UDP unicast connection */
    simple_udp_register(&unicast_conn, UDP_PORT_UNICAST, NULL,
                        UDP_PORT_UNICAST, unicast_receiver);

    /* Send messages to the clusterhead every 60 seconds */
    etimer_set(&periodic_timer, 60*CLOCK_SECOND);

    while(1) {
        PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&periodic_timer));


        LOG_INFO("Sending message %u to ", count);
        LOG_INFO_6ADDR(&CH_address);
        LOG_INFO_("\n");

        snprintf(str, sizeof(str), "hello %d", count);
        simple_udp_sendto(&unicast_conn, str, strlen(str), &CH_address);
        count++;
        etimer_reset(&periodic_timer);

    }

    PROCESS_END();
}

解释这一点的任何帮助都会很棒。

谢谢你。

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