NIC stopped, pcie_aspm=off

发布于 2015-05-13  105 次阅读


On some newer model Intel NICs they fall asleep at random when using Centos 6.X, or even other OS’s. To combat this, there is a simple addition to the grub.conf that will disable PCIe_ASPM. At the command line enter: 

vi /etc/grub.conf

Once in the grub.conf file, insert this into the end of the kernel line: 

pcie_aspm=off

It should then look like this: 
 

Exit, save, and reboot for changes to take effect. To check that changes were indeed made, use the following: 

dmesg|grep PCIe



It should return a PCIe Disabled message, confirming the changes were made successfully: