Disable all forms of offloading for all network interfaces on the local machine.

disableNicOffloading.sh

#!/bin/bash
##
## Disable all NIC offloading
## 2018-11-29 10:16 ElliotNB - bug fixes for non-interactive sessions and `sudo su` commands
## Licensed under MIT
##
## This script will disable all forms of offloading on all network interfaces found on
## this machine. This script was built to resolve system crashes related to the Xen kernel
## and certain hardware.
##
## Tested on RHEL6 and RHEL7.
## 
## Usage:
## 
## sudo sh disableNicOffloading.sh
## 

for iface in $(ifconfig | cut -d ' ' -f1| tr ':' '\n' | awk NF)
do
        ## printf "$iface\n"
        ethtool -K $iface tso off
        ethtool -K $iface gso off
        ethtool -K $iface gro off
        ethtool -K $iface ufo off
        ethtool -K $iface sg off
        ethtool -K $iface highdma off
        ethtool --offload  $iface  rx off  tx off
done