kern/50478: net/net/t_ipv6_lifetime/basic test fails on anita (amd64/i386)

[ozaki-r%netbsd.org@localhost]

>Number:         50478
>Category:       kern
>Synopsis:       net/net/t_ipv6_lifetime/basic test fails on anita (amd64/i386)
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Nov 26 08:30:00 +0000 2015
>Originator:     Ryota Ozaki
>Release:        NetBSD-current
>Organization:
>Environment:
NetBSD rangeley 7.99.21 NetBSD 7.99.21 (RANGELEY) #65: Wed Nov 25 14:48:55 JST 2015  ozaki-r@rangeley:(hidden) amd64
>Description:
The test passes on my local (baremetal) machine and anita/sparc,
but fails on anita/amd64 and anita/i386. It's not a timing problem.
I cannot reproduce it on my local machine.
>How-To-Repeat:
See http://releng.netbsd.org/test-results.html
>Fix:
N/A