Mysterious 60min reboot on net4501

[Harald Schmalzbauer]

Dear all,

I have a very strange problem with my soekris net4501 (ElanSC520 embedded 
board).
It ran fine over one year with 4.7 but since I upgraded it to -current from 2 
days ago the box reboots every 60 minutes without any message.
Does anybody know what this could cause?

Attached my kernel and my rc.conf.

-Manic Harry ?!?!?
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########################################
## Kernel for Soekris ##
########################################

## Generic Config
#-------------------
machine		i386
cpu		I486_CPU
ident		STITH
options 	SCHED_4BSD		#4BSD scheduler
options 	COMPAT_43		#Compatible with BSD 4.3 [KEEP THIS!]
options         HZ=1000
options         CPU_ELAN
options		CPU_SOEKRIS
#options         CPU_ELAN_PPS
#options         PPS_SYNC
#options         HW_WDOG
#options         SW_WATCHDOG
options         NO_SWAPPING
options         INIT_PATH=/sbin/init
options         PANIC_REBOOT_WAIT_TIME=1

## Buses
#------------------
device		npx
device		isa
device		pci

## ISA-Controller
#----------------
device		sio		# 8250, 16[45]50 based serial ports

## PCI-Controller
#------------------
device		ata

## Devices with their options
#----------------------------
#+++++ IDE ++++++
device		atadisk			# ATA disk drives
options 	ATA_STATIC_ID		#Static device numbering
options 	FFS			#Berkeley Fast Filesystem

#+++++ Netzwerk +++++
device		miibus		# MII bus support
device		sis
device		wi
options         PFIL_HOOKS
device		pf
device		pflog
device		pfsync
options         DEVICE_POLLING
options 	INET			#InterNETworking
options		INET6
options		FAST_IPSEC              #new IPsec (cannot define w/ IPSEC)
options         RANDOM_IP_ID
options         TCP_DROP_SYNFIN
options         ZERO_COPY_SOCKETS
options         MROUTING                # Multicast routing
options         NETGRAPH                #netgraph(4) system
options         NETGRAPH_BRIDGE
options         NETGRAPH_IFACE
options         NETGRAPH_BPF
options         NETGRAPH_ETHER
options         NETGRAPH_PPP
options         NETGRAPH_PPPOE
options         NETGRAPH_PPTPGRE
options         NETGRAPH_SOCKET
options         NETGRAPH_VJC

#+++++ CRYPTO ++++++
device          crypto          # core crypto support
device          cryptodev       # /dev/crypto for access to h/w
device          rndtest         # FIPS 140-2 entropy tester
device          hifn            # Hifn 7951, 7781, etc.
options         HIFN_RNDTEST    # enable rndtest support


## Pseudo Devices
#----------------
device		random		# Entropy device
device		loop		# Network loopback
device		ether		# Ethernet support
device		pty		# Pseudo-ttys (telnet etc)
device		md		# Memory "disks"
device		tun
device		bpf		# Berkeley packet filter
device		gre
device		wlan
device          gif		#IPv6 and IPv4 tunneling
device          faith		#for IPv6 and IPv4 translation
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hostname="stith.flintsbach.schmalzbauer.de"
ifconfig_sis0="up"
ifconfig_sis1="inet 172.21.0.1  netmask 255.255.0.0"
ifconfig_sis2="inet 192.168.0.1  netmask 255.255.255.0"
ifconfig_wi0="stationname Flintsbacher3 channel 9 ssid bob wepkey MYKEY wepmode mixed media DS/11Mbps mediaopt hostap"
gateway_enable="YES"
sendmail_enable="NONE"
inetd_enable="NO"
usbd_enable="NO"
portmap_enable="NO"
sshd_enable="YES"
named_enable="YES"
named_program="/usr/local/sbin/named"
#named_chrootdir="/var/bind"
xntpd_enable="YES"
update_motd="NO"
background_fsck="NO"
cron_enable="NO"
mpd_enable="NO"
ppp_enable="YES"
ppp_mode="ddial"
ppp_nat="YES"
ppp_profile="default"
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