Just to make sure you got the latest, the 4.17.x kernel did not work well enoguh to leave it running, it broke kernel-nfs-server among other things. I am pressenting running 4.15.0-21 and with this kernel I would still get these hangs except that I discovered disabling certain hardware offload functions stops it, so presently in my /etc/rc.local file on the affected servers I have: /sbin/ethtool -K eno1 gso off gro off tso off With this in place no hangs, slight performance penalty but no hangs. -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting. Knowledgeable human assistance, not telephone trees or script readers. See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874. On Mon, 7 May 2018, Joseph Salisbury wrote: > Date: Mon, 07 May 2018 18:26:12 -0000 > From: Joseph Salisbury