lwip 2.0.2 官方例程 tcp服务器死机问题求助

发布于 2019-01-29 14:31:22 浏览：5992 订阅该版

21 个回答

sync 2019-01-29

这家伙很懒，什么也没写！

[i=s] 本帖最后由 sync 于 2019-1-29 17:05 编辑 [/i]

lwip版本更换成2.1后也是一样的现象。。。。。
使用的程序就是这个例子[https://www.rt-thread.org/document/site/tutorial/qemu-network/tcpserver/tcpserver/](https://www.rt-thread.org/docume ... cpserver/tcpserver/)

我把tcp客户端数据的发送间隔调整为500ms。运行了快一个小时，又死了。。。
程序中就开一个5000端口，为啥会这样呢，数据量又不大。。。

基本每次都是连续工作半小时左右就死机了。。
这次打开NETIF_DEBUG后 
能看到一个ethernetif_input: Input error 错误

```

lwip_recvfrom: netconn_recv err=0, netbuf=20009ccc
lwip_recvfrom: buflen=174 len=1024 off=0 sock->lastoffset=0
lwip_recvfrom(1): addr=192.168.1.141 port=49401 len=174
lwip_recvfrom: deleting netbuf=20009ccc
rlen = 1689192 ,16496
lwip_send(1, data=08020a5c, size=34, flags=0x0)
lwip_send(1) err=0 written=34
lwip_recvfrom(1, 20010d24, 1024, 0x0, ..)
lwip_recvfrom: top while sock->lastdata=00000000
tcpip_thread: PACKET 20002808
tcpip_thread: PACKET 20002808
lwip_recvfrom: netconn_recv err=0, netbuf=20009ccc
lwip_recvfrom: buflen=174 len=1024 off=0 sock->lastoffset=0
lwip_recvfrom(1): addr=192.168.1.141 port=49401 len=174
lwip_recvfrom: deleting netbuf=20009ccc
rlen = 1689366 ,16497
lwip_send(1, data=08020a5c, size=34, flags=0x0)
lwip_send(1) err=0 written=34
lwip_recvfrom(1, 20010d24, 1024, 0x0, ..)
lwip_recvfrom: top while sock->lastdata=00000000
tcpip_thread: PACKET 20002808
tcpip_thread: PACKET 20002808
lwip_recvfrom: netconn_recv err=0, netbuf=20009ccc
lwip_recvfrom: buflen=174 len=1024 off=0 sock->lastoffset=0
lwip_recvfrom(1): addr=192.168.1.141 port=49401 len=174
lwip_recvfrom: deleting netbuf=20009ccc
rlen = 1689540 ,16499
lwip_send(1, data=08020a5c, size=34, flags=0x0)
lwip_send(1) err=0 written=34
lwip_recvfrom(1, 20010d24, 1024, 0x0, ..)
lwip_recvfrom: top while sock->lastdata=00000000
tcpip_thread: PACKET 20002808
CPU : 0.0
CPU : 0.0
CPU : 0.60
CPU : 0.0
CPU : 0.0
CPU : 0.6
CPU : 0.0
CPU : 0.0
ethernetif_input: Input error
CPU : 0.6
CPU : 0.0
ethernetif_input: Input error
ethernetif_input: Input error
CPU : 0.0
ethernetif_input: Input error
CPU : 5.29
CPU : 0.6
CPU : 0.0
```

rtt版本 和bsp都是前几天刚下载的。

```
\ | /
- RT -     Thread Operating System
/ | \     4.0.0 build Jan 29 2019
2006 - 2018 Copyright by rt-thread team
lwIP-2.0.2 initialized!
```

开机线程如下：

```

thread   pri  status      sp     stack size max used left tick  error
-------- ---  ------- ---------- ----------  ------  ---------- ---
tshell    20  running 0x00000084 0x00001000    12%   0x00000003 000
phy       30  suspend 0x00000094 0x00000400    19%   0x00000002 000
tcpip     10  suspend 0x000000c4 0x00000400    59%   0x0000000c 000
etx       12  suspend 0x00000094 0x00000400    14%   0x0000000f 000
erx       12  suspend 0x00000094 0x00000400    55%   0x0000000c 000
tidle0    31  ready   0x00000054 0x00000100    32%   0x00000012 000
main      10  suspend 0x00000094 0x00000800    34%   0x0000000e 000

```

这问题应该是底层驱动问题吧？最终错误发生在 erx接收线程中。

死机后，拔下网线仍能出现link down ,插上网线就又出现错误ethernetif_input: Input error

```
ethernetif_input: Input error
CPU : 0.0
CPU : 0.6
CPU : 0.0
CPU : 0.0
CPU : 0.0
[I/drv.emac] link down
CPU : 0.0
CPU : 0.6
CPU : 0.0
CPU : 0.6
CPU : 0.0
ethernetif_input: Input error
CPU : 0.0
CPU : 0.0
CPU : 0.0
CPU : 0.0
CPU : 0.0
ethernetif_input: Input error
ethernetif_input: Input error
CPU : 0.0
ethernetif_input: Input error
ethernetif_input: Input error
CPU : 0.0
[I/drv.emac] link down
CPU : 0.0
CPU : 0.0
CPU : 0.6
CPU : 0.0
CPU : 0.6
CPU : 0.0
CPU : 0.6
CPU : 0.0
ethernetif_input: Input error
ethernetif_input: Input error
ethernetif_input: Input error
```

zhifou 2019-01-30

这家伙很懒，什么也没写！

sync 2019-01-30

这家伙很懒，什么也没写！

[i=s] 本帖最后由 sync 于 2019-1-30 10:00 编辑 [/i]

这次只开机，只有默认线程，

```
thread   pri  status      sp     stack size max used left tick  error
-------- ---  ------- ---------- ----------  ------  ---------- ---
tshell    20  running 0x00000084 0x00001000    12%   0x00000008 000
phy       30  suspend 0x00000094 0x00000400    21%   0x00000001 000
tcpip     10  suspend 0x000000c4 0x00000400    59%   0x00000001 000
etx       12  suspend 0x00000098 0x00000400    23%   0x0000000c 000
erx       12  suspend 0x00000098 0x00000400    56%   0x00000005 000
tidle0    31  ready   0x00000058 0x00000100    34%   0x00000012 000
main      10  suspend 0x00000094 0x00000800    34%   0x00000011 000
```

的情况下就会出现错误：receive frame faild
使用的是8720接口芯片

```
 \ | /
- RT -     Thread Operating System
 / | \     4.0.0 build Jan 29 2019
 2006 - 2018 Copyright by rt-thread team
lwIP-2.0.2 initialized!
[D/drv.emac] initialize tx wait semaphore
netif: IP address of interface e0 set to 0.0.0.0
netif: netmask of interface e0 set to 0.0.0.0
netif: GW address of interface e0 set to 0.0.0.0
[D/drv.emac] eth hardware init success
[D/drv.emac] emac hardware start
netif: setting default interface e0
[D/drv.emac] transmit frame lenth :350
netif: added interface e0 IP addr 0.0.0.0 netmask 0.0.0.0 gw 0.0.0.0
[D/drv.emac] emac device init success
msh >[D/drv.emac] found a phy, address:0x00
[D/drv.emac] RESET PHY!
CPU : 0.0
[D/drv.emac] transmit frame lenth :350
CPU : 0.0
[D/drv.emac] PHY BASIC STATUS REG:0x7809
CPU : 0.6
[D/drv.emac] PHY BASIC STATUS REG:0x7809
CPU : 0.6
[D/drv.emac] PHY BASIC STATUS REG:0x782D
[D/drv.emac] PHY Control/Status REG:0x0000
[D/drv.emac] link up
[D/drv.emac] 10Mbps
[D/drv.emac] half-duplex
[D/drv.emac] transmit frame lenth :350
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame len : 342
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame faild
[D/drv.emac] transmit frame lenth :350
[D/drv.emac] receive frame len : 342
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame faild
[D/drv.emac] transmit frame lenth :42
[D/drv.emac] transmit frame lenth :42
[D/drv.emac] transmit frame lenth :42
netif: netmask of interface e0 set to 255.255.255.0
netif: GW address of interface e0 set to 192.168.1.1
netif_set_ipaddr: netif address being changed
[D/drv.emac] transmit frame lenth :42
netif: IP address of interface e0 set to 192.168.1.95
CPU : 5.96
[D/drv.emac] PHY BASIC STATUS REG:0x782D
[D/drv.emac] PHY Control/Status REG:0x0000
[D/drv.emac] transmit frame lenth :42
CPU : 0.36
[D/drv.emac] PHY BASIC STATUS REG:0x782D
[D/drv.emac] PHY Control/Status REG:0x0000
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame faild
[D/drv.emac] transmit frame lenth :42
CPU : 0.0
[D/drv.emac] PHY BASIC STATUS REG:0x782D
[D/drv.emac] PHY Control/Status REG:0x0000
[D/drv.emac] transmit frame lenth :42
CPU : 0.6
[D/drv.emac] PHY BASIC STATUS REG:0x782D
[D/drv.emac] PHY Control/Status REG:0x0000
CPU : 0.0
[D/drv.emac] PHY BASIC STATUS REG:0x782D
[D/drv.emac] PHY Control/Status REG:0x0000
CPU : 0.6
[D/drv.emac] PHY BASIC STATUS REG:0x782D
[D/drv.emac] PHY Control/Status REG:0x0000
CPU : 0.6
[D/drv.emac] PHY BASIC STATUS REG:0x782D
[D/drv.emac] PHY Control/Status REG:0x0000
CPU : 0.0
```

而且有时，会连续出现错误RX err = -3，表示邮箱已满。

```

tcpip_thread: PACKET 2000280c
[D/drv.emac[E/drv.emac] RX err = -3
c]receive frame len : 60
t[E/drv.emac] RX err = -3
[0m
 = -3emac] T 2000280c
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2[E/drv.emac] RX err = -3
000280c
[D/drv.emac] receive frame len : 60
tcpip_thread: [E/drv.emac] RX err = -3
ac] T 2000280c
[D/drv.emac] receive frame len : 60
tcpip[E/drv.emac] RX err = -3
 = -3emac] T 2000280c
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2[E/drv.emac] RX err = -3
000280c
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame len : 60
tcpip_threa[E/drv.emac] RX err = -3
emac] T 2000280c
[D/drv.emac] receive frame len : 60
tcpip_thread[E/drv.emac] RX err = -3
emac] T 2000280c
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
me faild 2000280c

[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame faild
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2000280c
[D/drv.emac] receive frame len : 60
tcpip_thread: PACKET 2000280c
```

但正常时，邮箱使用如下：

```
mailbox entry size suspend thread
-------- ---- ---- --------------
mbox0 0000 0016 1:tcpip
etxmb 0000 0016 1:etx
erxmb 0000 0016 1:erx
```

ifconfig 如下：

```
network interface: e0 (Default)
MTU: 1500
MAC: 00 80 e1 07 33 47
FLAGS: UP LINK_UP ETHARP BROADCAST IGMP
ip address: 192.168.1.95
gw address: 192.168.1.1
net mask  : 255.255.255.0
dns server #0: 192.168.1.1
dns server #1: 192.168.1.1
```

插上网线每次都是10M,半双工模式。。。

```
[D/drv.emac] link up
[D/drv.emac] 10Mbps
[D/drv.emac] half-duplex
```

```

yqiu 2019-01-30

这家伙很懒，什么也没写！

sync 2019-01-30

这家伙很懒，什么也没写！

sync 2019-01-30

这家伙很懒，什么也没写！

[i=s] 本帖最后由 sync 于 2019-1-30 11:19 编辑 [/i]

使用的drv_eth.c的版本

```
/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2018-11-19     SummerGift   first version
 * 2018-12-25     zylx         fix some bugs
 */

#include "board.h"
#include "drv_config.h"
#include <netif/ethernetif.h>
#include "lwipopts.h"
#include "drv_eth.h"
```

问题应该就 出在rt_stm32_eth_rx函数里面

```
struct pbuf *rt_stm32_eth_rx(rt_device_t dev)
{

struct pbuf *p = NULL;
    struct pbuf *q = NULL;
    HAL_StatusTypeDef state;
    uint16_t len = 0;
    uint8_t *buffer;
    __IO ETH_DMADescTypeDef *dmarxdesc;
    uint32_t bufferoffset = 0;
    uint32_t payloadoffset = 0;
    uint32_t byteslefttocopy = 0;
    uint32_t i = 0;

/* Get received frame */
    state = HAL_ETH_GetReceivedFrame_IT(&EthHandle);
    if (state != HAL_OK)
    {   
			  printf("state = %d\r\n",state);
        LOG_D("receive frame faild");
        return NULL;
    }

/* Obtain the size of the packet and put it into the "len" variable. */
    len = EthHandle.RxFrameInfos.length;
    buffer = (uint8_t *)EthHandle.RxFrameInfos.buffer;

LOG_D("receive frame len : %d", len);

if (len > 0)
    {
        /* We allocate a pbuf chain of pbufs from the Lwip buffer pool */
        p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
    }

#ifdef ETH_RX_DUMP
    dump_hex(buffer, p->tot_len);
#endif

if (p != NULL)
    {
        dmarxdesc = EthHandle.RxFrameInfos.FSRxDesc;
        bufferoffset = 0;
        for (q = p; q != NULL; q = q->next)
        {
            byteslefttocopy = q->len;
            payloadoffset = 0;

/* Check if the length of bytes to copy in current pbuf is bigger than Rx buffer size*/
            while ((byteslefttocopy + bufferoffset) > ETH_RX_BUF_SIZE)
            {
                /* Copy data to pbuf */
                memcpy((uint8_t *)((uint8_t *)q->payload + payloadoffset), (uint8_t *)((uint8_t *)buffer + bufferoffset), (ETH_RX_BUF_SIZE - bufferoffset));

/* Point to next descriptor */
                dmarxdesc = (ETH_DMADescTypeDef *)(dmarxdesc->Buffer2NextDescAddr);
                buffer = (uint8_t *)(dmarxdesc->Buffer1Addr);

byteslefttocopy = byteslefttocopy - (ETH_RX_BUF_SIZE - bufferoffset);
                payloadoffset = payloadoffset + (ETH_RX_BUF_SIZE - bufferoffset);
                bufferoffset = 0;
            }
            /* Copy remaining data in pbuf */
            memcpy((uint8_t *)((uint8_t *)q->payload + payloadoffset), (uint8_t *)((uint8_t *)buffer + bufferoffset), byteslefttocopy);
            bufferoffset = bufferoffset + byteslefttocopy;
        }
    }

/* Release descriptors to DMA */
    /* Point to first descriptor */
    dmarxdesc = EthHandle.RxFrameInfos.FSRxDesc;
    /* Set Own bit in Rx descriptors: gives the buffers back to DMA */
    for (i = 0; i < EthHandle.RxFrameInfos.SegCount; i++)
    {
        dmarxdesc->Status |= ETH_DMARXDESC_OWN;
        dmarxdesc = (ETH_DMADescTypeDef *)(dmarxdesc->Buffer2NextDescAddr);
    }

/* Clear Segment_Count */
    EthHandle.RxFrameInfos.SegCount = 0;

/* When Rx Buffer unavailable flag is set: clear it and resume reception */
    if ((EthHandle.Instance->DMASR & ETH_DMASR_RBUS) != (uint32_t)RESET)
    {
        /* Clear RBUS ETHERNET DMA flag */
        EthHandle.Instance->DMASR = ETH_DMASR_RBUS;
        /* Resume DMA reception */
        EthHandle.Instance->DMARPDR = 0;
    }

return p;
}

```

调试发现每次发生 LOG_D("receive frame faild");错误的时候
HAL_ETH_GetReceivedFrame_IT中的heth->RxDesc->Status状态是 0x80400320
也就是((heth->RxDesc->Status & ETH_DMARXDESC_OWN) == (uint32_t)RESET) 不成立

sync 2019-01-30

这家伙很懒，什么也没写！

[i=s] 本帖最后由 sync 于 2019-1-30 11:35 编辑 [/i]

rt_stm32_eth_rx里面的
dmarxdesc->Status |= ETH_DMARXDESC_OWN;
这句话是啥意思呢？我将其注销掉的话，会有其他影响吗？
注销掉就没再发生receive frame faild错了。

```
    for (i = 0; i < EthHandle.RxFrameInfos.SegCount; i++)
    {
//        dmarxdesc->Status |= ETH_DMARXDESC_OWN;
        dmarxdesc = (ETH_DMADescTypeDef *)(dmarxdesc->Buffer2NextDescAddr);
    }
```

注销掉，会有另外的错误

```
[D/drv.emac] receive frame len : 342
ethernetif_input: Input error
[D/drv.emac] receive frame len : 342
ethernetif_input: Input error
[D/drv.emac] receive frame len : 60
ethernetif_input: Input error
[D/drv.emac] receive frame len : 60
ethernetif_input: Input error
[D/drv.emac] receive frame len : 342
ethernetif_input: Input error
[D/drv.emac] receive frame len : 342
ethernetif_input: Input error
[D/drv.emac] receive frame len : 60
ethernetif_input: Input error
[D/drv.emac] receive frame len : 60
ethernetif_input: Input error
[D/drv.emac] receive frame len : 342
ethernetif_input: Input error
[D/drv.emac] receive frame len : 342
ethernetif_input: Input error
[D/drv.emac] receive frame len : 60
ethernetif_input: Input error
```