bin/51532: net/net/t_mtudisc test leaves looping httpd process

[gson%gson.org@localhost (Andreas Gustafsson)]

>Number:         51532
>Category:       bin
>Synopsis:       net/net/t_mtudisc test leaves looping httpd process
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Oct 05 17:20:01 +0000 2016
>Originator:     Andreas Gustafsson
>Release:        NetBSD-current, source date >= 2016.10.04.04.15.25
>Organization:
>Environment:
System: NetBSD
Architecture: i386
Machine: i386
>Description:

Running the net/net/t_mtudisc test leaves a httpd process running in
the background and consuming 100% CPU.  This is slowing down the i386
test runs on babylon5 enough that they all time out before completing:

  http://releng.netbsd.org/b5reports/i386/commits-2016.10.html#2016.10.04.04.15.25

>How-To-Repeat:

  cd /usr/tests/net/net
  atf-run | atf-report
  ps -x | grep httpd

>Fix:

Disabling the test would be a good start - better to have results
from all tests except one than from none at all.