port-mips/52892: Tests hang on MIPS

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

>Number:         52892
>Category:       port-mips
>Synopsis:       Tests hang on MIPS
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    port-mips-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jan 03 15:50:00 +0000 2018
>Originator:     Andreas Gustafsson
>Release:        NetBSD-current, source date >= December 2017
>Organization:

>Environment:
System: NetBSD
Architecture: mips64el
Machine: pmax
>Description:

Neither the pmax nor the hpcmips test runs on babylon5.netbsd.org
managed to run to completion a single time during December 2017.
Although there have been several other issues causing the tests to
hang on other platform, as discussed on current-users, there also
appears to be a separate issue that specifically affects mips and
appeared in late November or early December.

The hanging test case varies, but so far they all seem to be
networking related in some way:

babylon5.netbsd.org$ cd /bracket/pmax/results/2017
babylon5.netbsd.org$ zgrep ': Traceback' 2017.12*/test.log.gz
2017.12.04.14.50.33/test.log.gz:    pktinfo_send_ifindex: Traceback (most recent call last):
2017.12.07.03.25.51/test.log.gz:    pktinfo_send_multicast: Traceback (most recent call last):
2017.12.07.10.22.04/test.log.gz:    pktinfo_send_ifindex: Traceback (most recent call last):
2017.12.09.16.00.19/test.log.gz:    read_random: Traceback (most recent call last):
2017.12.28.09.47.52/test.log.gz:    floodping2: Traceback (most recent call last):

babylon5.netbsd.org$ cd /bracket/hpcmips/results/2017
babylon5.netbsd.org$ zgrep ': Traceback' 2017.12*/test.log.gz
2017.12.04.14.50.33/test.log.gz:    pktinfo_send_ifindex: Traceback (most recent call last):
2017.12.09.16.00.19/test.log.gz:    nfs_create_many: Traceback (most recent call last):
2017.12.12.08.27.32/test.log.gz:    pktinfo_send_multicast: Traceback (most recent call last):
2017.12.14.06.29.15/test.log.gz:    pktinfo_send_ifindex: Traceback (most recent call last):
2017.12.22.02.36.46/test.log.gz:    nfs_create_many: Traceback (most recent call last):
2017.12.23.12.50.55/test.log.gz:    pktinfo_send_ifindex: Traceback (most recent call last):
2017.12.24.01.22.16/test.log.gz:    pktinfo_send_multicast: Traceback (most recent call last):
2017.12.25.06.39.00/test.log.gz:    floodping2: Traceback (most recent call last):
2017.12.26.08.30.58/test.log.gz:    pktinfo_send_ifindex: Traceback (most recent call last):
2017.12.28.09.47.52/test.log.gz:    pktinfo_send_ifindex: Traceback (most recent call last):

>How-To-Repeat:

>Fix: