That is good news.  That means we can perform a "Reverse" kernel bisect
to identify the commit that fixes this.  Can you test some kernels to
perform the bisect?  I can build them and post links to them here.  It
would take testing of about 10-12 kernels.

To start the bisect, we first need to identify the last BAD kernel and
the first GOOD kernel.  Currently we know the 4.4 based kernel in Xenial
is bad.  The 4.8-rc3 kernel is good.  Can you next test the upstream 4.7
final kernel?  It can be downloaded from:

http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7/

If that one is good, can try the 4.6, then 4.5, etc.

Thanks!

** Changed in: linux (Ubuntu)
       Status: Incomplete => Triaged

** Tags added: performing-bisect

** Also affects: linux (Ubuntu Yakkety)
   Importance: Medium
       Status: Triaged

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Xenial)
       Status: New => Triaged

** Changed in: linux (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Xenial)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

** Changed in: linux (Ubuntu Yakkety)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

** Changed in: linux (Ubuntu Yakkety)
       Status: Triaged => In Progress

** Changed in: linux (Ubuntu Xenial)
       Status: Triaged => In Progress

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https://bugs.launchpad.net/bugs/1614953

Title:
  hw csum failure when IPv6 interfaces configured in
  netdev_rx_csum_fault+0x38/0x40

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