Re: [CentOS] Loss of network connectivity | kernel: irq 68: nobody cared (try booting with the "irqpoll" option)

On Sat, 8 Mar 2014, James A. Peltier wrote:

| Every few months I lose network connectivity and have to restart the | server:

What kind of machine are you running this on? If you have a BIOS check to see if there is an update available for it. Assuming that you have the latest BIOS on the machine try booting with MSI-X disabled and see if it becomes more stable.

I'll second the suggestion for disabling MSI-X and add one: add pcie_aspm=off to your boot-time kernel options.

You wouldn't happen to be running a SuperMicro mainboard with onboard Intel 82574L NICs, would you? If so, I'll also suggest installing the kmod-e1000e package from elrepo.org, which includes a workaround for the bad PROM that's involved.