I am glad to report that the problem has been resolved. The issues I
saw with 4.13.0-35.39 during verification appear to be KPTI-related.
After upgrading to 4.13.0-36.40, all is well.
Thanks to everyone that assisted with moving this forward.
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https://bugs.launchpad.net/bugs/1736593
Title:
ThunderX: TX failure unless checksum offload
Public bug reported:
[Impact]
Most attempts to use IPv6 on the ThunderX NIC will fail.
[Test Case]
Attempt an IPv6 TCP connection:
$ wget -6 'http://www.kernel.org/'
The connection will time out.
[Regression Risk]
The fix is upstream, and is limited to the ThunderX nicvf driver.
[Workaround]
