On Wed, 2 Apr 2014, Paul Heinlein wrote: > The lovely Supermicro 82574L bug! There was a similar thread about a > month ago: > > http://lists.centos.org/pipermail/centos/2014-March/141348.html > > The short answer that's worked for me: Add pcie_aspm=off to your > boot-time kernel options. I've also started running the kmod-e1001e > package from elrepo.org. Er, kmod-e1000e. Some background links, just in case this happens to others: * All the issues I mentioned above, in longer form: http://www.doxer.org/learn-linux/resolved-intel-e1000e-driver-bug-on-82574l-ethernet-controller-causing-network-blipping/ * Long post about EEPROM issues on 82574L controllers: http://blog.krisk.org/2013/02/packets-of-death.html * Red Hat bugzilla entry: https://bugzilla.redhat.com/show_bug.cgi?id=632650 * Basic Google search for starting point: http://lmgtfy.com/?q=e1000e+82574L+ASPM -- Paul Heinlein heinlein at madboa.com 45°38' N, 122°6' W