kern/50184: kernel assertion failure

[martin%NetBSD.org@localhost]

>Number:         50184
>Category:       kern
>Synopsis:       kernel assertion failure
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Aug 31 20:35:00 +0000 2015
>Originator:     Martin Husemann
>Release:        NetBSD 7.99.21
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD unpluged.duskware.de 7.99.21 NetBSD 7.99.21 (UNPLUGED) #84: Mon Aug 31 14:31:42 CEST 2015 martin%seven-days-to-the-wolves.aprisoft.de@localhost:/ssd/src/sys/arch/evbarm/compile/UNPLUGED evbarm
Architecture: earm
Machine: evbarm
>Description:

During atf test runs I get repeatably a kernel crash (last time during the 
kqueue tests, not sure if previous run had it at the same test) on a diskless
arm client.

panic: kernel diagnostic assertion "rt != NULL" failed: file "../../../../netinet/if_arp.c", line 1431 
cpu0: Begin traceback...
0xcbc81eb4: c004bc78
0xcbc81ee4: c021c804
0xcbc81efc: c032ef88
0xcbc81f44: c00b94b4
0xcbc81f74: c014168c
0xcbc81fac: c0135148

(can decode frames tomorrow)

>How-To-Repeat:
cd /usr/tests && atf-run|atf-report
on a evbarm diskless machine.

>Fix:
n/a