[ovs-build] Failed: ovsrobot/ovs#2116 (series_151252 - 73bf767)

[Travis CI]

Build Update for ovsrobot/ovs
-------------------------------------

Build: #2116
Status: Failed

Duration: 49 mins and 34 secs
Commit: 73bf767 (series_151252)
Author: Ilya Maximets
Message: netdev-afxdp: Fix transmission freeze in native mode without zerocopy.

Kernel uses 'xsk_generic_xmit()' for all modes where zerocopy is
not enabled:

   net/xdp/xsk.c
   433  static int __xsk_sendmsg(struct sock *sk)
   434  {
            ...
   442      return xs->zc ? xsk_zc_xmit(xs) : xsk_generic_xmit(sk);
   443  }

'xsk_generic_xmit ()' sends packets synchronously and no more than 16
packets at a time.  This means that we have to kick Tx with sendmsg()
for every 16 packets in simple native mode too, otherwise the packets
may never be sent.

Reported-by: William Tu <u9012063 at gmail.com>
Reported-at: https://mail.openvswitch.org/pipermail/ovs-dev/2019-November/365076.html
Fixes: e8f5634484e8 ("netdev-afxdp: Best-effort configuration of XDP mode.")
Signed-off-by: Ilya Maximets <i.maximets at ovn.org>
Signed-off-by: 0-day Robot <robot at bytheb.org>

View the changeset: https://github.com/ovsrobot/ovs/commit/73bf7674e81c

View the full build log and details: https://travis-ci.org/ovsrobot/ovs/builds/632805571?utm_medium=notification&utm_source=email

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