Solve the problem that Qualcomm Atheros AR8161 Gigabit Ethernet NIC fails in Linux.

Solve the problem that Qualcomm Atheros AR8161 Gigabit Ethernet NIC fails in Linux.

The NIC Of My Dell I2330R-168 integrated computer broke down after upgrading a kernel version.

ifconfig eth0eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 8192        inet 192.168.99.236  netmask 255.255.255.0  broadcast 192.168.99.255        inet6 fe80::221:70ff:fe6a:bd9c  prefixlen 64  scopeid 0x20<link>        ether 00:21:70:6a:bd:9c  txqueuelen 1000  (Ethernet)        RX packets 36202  bytes 49450919 (47.1 MiB)        RX errors 173  dropped 0  overruns 173  frame 0        TX packets 20661  bytes 1889686 (1.8 MiB)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0        device interrupt 17 

 

Now the arch linux is installed, and the kernel is updated to the latest version.

uname -a4.4.1-2-ARCH #1 SMP PREEMPT Wed Feb 3 13:12:33 UTC

However, this problem still exists.

 

I suddenly thought that I should go to the kernel site to find the answer, so I searched for the NIC Driver name alx.

Https://bugzilla.kernel.org/buglist.cgi? Quicksearch = alx

Many people have encountered the same problem.

Https://bugzilla.kernel.org/show_bug.cgi? Id = 70761

You can solve this problem by changing mtu to 8192.

ifconfig eth0 mtu 8192

Someone has written a patch to solve this problem, but has not yet entered the kernel.

 

Since I am using arch linux, I will not compile the kernel myself in archlinux, so I will first set mtu to solve this problem.