In order to see if this kernel patch solved my issue, I downloaded and built the HWE 5.0.0-29 kernel, adding the patch to the IXBGE driver.
I'm running this patched kernel (and driver module) now and the problem has completely gone. If I roll back to the stock HWE 5.0.0-29 kernel the problem comes back. (Also if I change my network connection from my IXBGE interfaces to my TG3 interfaces the problem disappears!) I'll re-install the original HWE kernel now and see if I can capture the kernel information to attach to the bug -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1846283 Title: Strongswan Charon-systemd fails on ixbge fault with hardware offload To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1846283/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs