Maybe it's another kernel regression with Intel NIC and TSO so you can try this :
# tso => tcp-segmentation-offload # gso => generic-segmentation-offload # gro => generic-receive-offload # sg => scatter-gather # ufo => udp-fragmentation-offload (Cannot change) # lro => large-receive-offload (Cannot change) ethtool -K em1 tso off gso off gro off sg off ethtool -K em2 tso off gso off gro off sg off ethtool -K em3 tso off gso off gro off sg off ethtool -K em4 tso off gso off gro off sg off # ethtool -K eth0 tso off gso off gro off sg off # ... Add this to each iface in /etc/network/interfaces pre-up /sbin/ethtool -K $IFACE tso off gso off gro off sg off || true -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492146 Title: igb Detected Tx Unit Hang To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-utopic/+bug/1492146/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
