【BUG】FastRhino R68S eth0 (WAN) 链路抖动导致系统冻死重启
Author: KevinZjYangCreated Jun 7, 2026Updated Sep 8, 2026
1.关于你要提交的问题
Q:是否用关键词搜索了issue? (使用 "x" 选择)
- 没有类似的issue
2. 详细叙述
(1) 具体问题
R68S 在运行过程中突然冻死,整个系统无响应(包括 LAN 口),需要断电才能恢复。ramoops 中没有内核 panic 记录,说明是硬件级挂死。
冻死前在进行高速下载(BT/大文件下载),冻死后 ramoops 中发现 eth0(WAN 口)存在严重的链路抖动,启动后 18 秒内断开 2 次,每次断开都会触发完整的 PHY 重初始化。
在约 2 小时内连续冻死 5 次,间隔从 76 分钟逐渐缩短到 2 分钟。
(2) 路由器型号和固件版本
- 设备型号: Lunzn FastRhino R68S
- SoC: Rockchip RK3568 (Cortex-A55 x4)
- iStoreOS 版本: 24.10.7 (2026060510)
- 内核版本: 6.6.141
- eth0 PHY: RTL8211F Gigabit Ethernet (stmmac 驱动)
- 内存: 4GB
- 存储: eMMC 14.5GB
(3) 详细日志和/或截图
ramoops 中 eth0 链路抖动记录(每次冻死重启后都能看到):
[ 21.448338] rk_gmac-dwmac fe2a0000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
[ 25.112585] rk_gmac-dwmac fe2a0000.ethernet eth0: Link is Down
[ 26.683268] rk_gmac-dwmac fe2a0000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-0
[ 26.804791] rk_gmac-dwmac fe2a0000.ethernet eth0: PHY [stmmac-0:01] driver [RTL8211F Gigabit Ethernet] (irq=POLL)
[ 26.815031] rk_gmac-dwmac fe2a0000.ethernet eth0: No Safety Features support found
[ 26.815726] rk_gmac-dwmac fe2a0000.ethernet eth0: IEEE 1588-2008 Advanced Timestamp supported
[ 26.816672] rk_gmac-dwmac fe2a0000.ethernet eth0: registered PTP clock
[ 26.817287] rk_gmac-dwmac fe2a0000.ethernet eth0: configuring for phy/rgmii-id link mode
[ 30.007715] rk_gmac-dwmac fe2a0000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
[ 35.015857] rk_gmac-dwmac fe2a0000.ethernet eth0: Link is Down
[ 35.018034] rk_gmac-dwmac fe2a0000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-0
[ 35.145081] rk_gmac-dwmac fe2a0000.ethernet eth0: PHY [stmmac-0:01] driver [RTL8211F Gigabit Ethernet] (irq=POLL)
[ 35.155150] rk_gmac-dwmac fe2a0000.ethernet eth0: No Safety Features support found
[ 35.155840] rk_gmac-dwmac fe2a0000.ethernet eth0: IEEE 1588-2008 Advanced Timestamp supported
[ 35.156755] rk_gmac-dwmac fe2a0000.ethernet eth0: registered PTP clock
[ 35.157360] rk_gmac-dwmac fe2a0000.ethernet eth0: configuring for phy/rgmii-id link mode
[ 39.357337] rk_gmac-dwmac fe2a0000.ethernet eth0: Link is Up - 1Gbps/Full - flow control offPHY 供电日志:
[ 0.377601] rk_gmac-dwmac fe010000.ethernet: supply phy not found, using dummy regulator
[ 0.501908] rk_gmac-dwmac fe2a0000.ethernet: supply phy not found, using dummy regulatorethtool 信息:
driver: st_gmac
version: 6.6.141
bus-info: fe2a0000.ethernet
Speed: 1000Mb/s
Duplex: Full
Link detected: yes
Ring parameters:
RX: 512 (max 1024)
TX: 512 (max 1024)
Offload features:
tcp-segmentation-offload: on
generic-receive-offload: on
generic-segmentation-offload: on
scatter-gather: on(4) 复现步骤
- R68S 正常启动,WAN 口通过 PPPoE 拨号上网
- 进行高速下载(如 BT 下载、大文件下载)
- 等待数分钟至数十分钟
- 系统冻死,所有网络断开,SSH 无法连接,需要断电恢复
(5) 当前行为
系统在高速下载时突然冻死,ramoops 中无内核 panic 记录。eth0 在启动阶段存在链路抖动(Link Down/Up 循环),每次 Link Down 都会触发完整的 PHY 重初始化。约 2 小时内连续冻死 5 次,间隔逐渐缩短。
(6) 预期行为
eth0 链路在启动后应保持稳定,系统在高网络负载下不应冻死。
Source: istoreos/istoreos