[Bug 221317] Netmap issue after ixgbe driver update

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Mon Aug 7 17:19:15 UTC 2017


            Bug ID: 221317
           Summary: Netmap issue after ixgbe driver update
           Product: Base System
           Version: 11.1-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: peixoto.cassiano at gmail.com

After commit r320897 (ixgbe driver update to 3.2.12-k) netmap is not working
well anymore. When ixgbe interface is opened many times it changes the status
to "no carrier" and needs a reboot to work again.

It's quite easy to reproduce the issue, just use two machines with ixgbe driver
sending and receiving packets using pkt-gen. Run pkt-gen many times with option
like -p and -c.

To make sure it was a driver update issue i downgrade it ixgbe driver (version
3.1.13-K) released with FreeBSD-11.1-RELEASE and worked fine.

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