XPS15 9570 +迅雷3以太网不断退出

Question

我有一个XPS 9570运行Ubtuntu20.10和埃尔加托雷霆3迷你码头。所有的端口都在工作，但是以太网确实不稳定。它工作了大约2秒，然后它掉了一秒钟，然后又回来了。我已经设置雷电3模式为无安全性，这修复了usb输出。我已经禁用了TLP，并将笔记本电脑插入AC。这也没能解决问题。当引导到Windows时，稳定性没有问题。

在dmesg的输出中，您可以清楚地看到电缆插入时连接的上下变化。

[ 1008.264943] tg3 0000:07:00.0 ens1: Link is down
[ 1011.307241] tg3 0000:07:00.0 ens1: Link is up at 1000 Mbps, full duplex
[ 1011.307246] tg3 0000:07:00.0 ens1: Flow control is on for TX and on for RX
[ 1011.307249] tg3 0000:07:00.0 ens1: EEE is enabled
[ 1013.625053] tg3 0000:07:00.0 ens1: Link is down
[ 1016.636342] tg3 0000:07:00.0 ens1: Link is up at 1000 Mbps, full duplex
[ 1016.636347] tg3 0000:07:00.0 ens1: Flow control is on for TX and on for RX
[ 1016.636350] tg3 0000:07:00.0 ens1: EEE is enabled
[ 1019.877241] tg3 0000:07:00.0 ens1: Link is down
[ 1022.843123] tg3 0000:07:00.0 ens1: Link is up at 1000 Mbps, full duplex
[ 1022.843128] tg3 0000:07:00.0 ens1: Flow control is on for TX and on for RX
[ 1022.843130] tg3 0000:07:00.0 ens1: EEE is enabled
[ 1052.584320] tg3 0000:07:00.0 ens1: Link is down
[ 1055.499589] tg3 0000:07:00.0 ens1: Link is up at 1000 Mbps, full duplex
[ 1055.499617] tg3 0000:07:00.0 ens1: Flow control is on for TX and on for RX
[ 1055.499635] tg3 0000:07:00.0 ens1: EEE is enabled
[ 1058.704318] tg3 0000:07:00.0 ens1: Link is down
[ 1061.641735] tg3 0000:07:00.0 ens1: Link is up at 1000 Mbps, full duplex
[ 1061.641764] tg3 0000:07:00.0 ens1: Flow control is on for TX and on for RX
[ 1061.641769] tg3 0000:07:00.0 ens1: EEE is enabled
[ 1064.767652] tg3 0000:07:00.0 ens1: Link is down
[ 1067.759536] tg3 0000:07:00.0 ens1: Link is up at 1000 Mbps, full duplex
[ 1067.759565] tg3 0000:07:00.0 ens1: Flow control is on for TX and on for RX
[ 1067.759570] tg3 0000:07:00.0 ens1: EEE is enabled
[ 1071.026376] tg3 0000:07:00.0 ens1: Link is down
[ 1073.972821] tg3 0000:07:00.0 ens1: Link is up at 1000 Mbps, full duplex
[ 1073.972849] tg3 0000:07:00.0 ens1: Flow control is on for TX and on for RX
[ 1073.972854] tg3 0000:07:00.0 ens1: EEE is enabled
[ 1077.708775] tg3 0000:07:00.0 ens1: Link is down
[ 1080.741436] tg3 0000:07:00.0 ens1: Link is up at 1000 Mbps, full duplex
[ 1080.741462] tg3 0000:07:00.0 ens1: Flow control is on for TX and on for RX
[ 1080.741467] tg3 0000:07:00.0 ens1: EEE is enabled
[ 1086.415177] tg3 0000:07:00.0 ens1: Link is down
[ 1089.617665] tg3 0000:07:00.0 ens1: Link is up at 1000 Mbps, full duplex
[ 1089.617666] tg3 0000:07:00.0 ens1: Flow control is on for TX and on for RX
[ 1089.617667] tg3 0000:07:00.0 ens1: EEE is enabled
[ 1099.637822] tg3 0000:07:00.0 ens1: Link is down

有什么原因造成这种行为的吗？

Answer 1

如果您不希望网络性能因为睡眠和唤醒转换所需的额外时间延迟而受到影响，或者如果远程端不支持EEE，则禁用EEE。

Answer 2

正如@David所指出的，导致辍学的是节能以太网(EEE)。在使用ethtool --set-eee ens1 eee off发现这里之后，连接不再下降。

您应该将igb.EEE=0添加到内核cmdline，以便在引导期间禁用EEE，否则必须每次重新启动时都使用该命令。