I can't generate a kernel crash core.

[Jose Luis Rodriguez Garcia <joseyluis%gmail.com@localhost>]

It is NetBSD 7.0 amd64

The swap size is 8 GB, and the memory of the PC is 4GB.

This the /etc/sysctl.conf file:
pc2$ grep -v '^#' /etc/sysctl.conf
ddb.onpanic?=0
kern.ipc.shmmax=160000000
vfs.generic.usermount=1
machdep.sparse_dump=1
kern.dump_on_panic=1

I have tried with:
reboot 0x100
reboot 0x104

halt|reboot -dq
etc

without sucess.

I have tried to add savecore=yes to /etc/rc.conf.

Doing a halt -dv o reboot -dqx, I can't see any message that it tries to dump.

I have tried also to do a:
sysctl -w kern.dump_on_panic=0, and it didn't work.


pc2# swapctl -l
Device      1K-blocks     Used    Avail Capacity  Priority
/dev/wd0b     8389568        0  8389568     0%    0

By the way I have seen a strange thing:

Doing a rcorder , swap1 and swap2 are execute before of savecore. I
thought that savecore that should be executed before of adding swap.

pc2# rcorder *
wdogctl
fsck_root
modules
resize_root
root
ccd
rndctl
cgd
lvm
raidframe
DISKS
swap1
fsck
mountcritlocal
random_seed
bootconf.sh
ttys
pf_boot
ipsec
ipfilter
sysctl
network
wpa_supplicant
dhclient
dhcpcd
ldpd
npf
pf
route6d
routed
rtsold
staticroute
NETWORKING
mountcritremote
sysdb
newsyslog
wscons
syslogd
ppp
named
rtclocaltime
ntpdate
rpcbind
ypserv
ypbind
yppasswdd
mountall
perusertmp
cleartmp
xfs
accounting
amd
dmesg
fccache
veriexec
ldconfig
quota
mountd
nfsd
nfslocking
pwcheck
gpio
ipnat
securelevel
swap2
virecover
altqd
blacklistd
ifwatchd
isdnd
downinterfaces
ipfs
ipmon
kdc
pflogd
racoon
savecore
SERVERS
DAEMON
apmd
bluetooth
bootparams
devpubd
dhcpd
dhcrelay
ftp_proxy
irdaattach
local
lpd
makemandb
mopd
motd
mrouted
ntpd
powerd
rarpd
rbootd
rtadvd
rwho
screenblank
timed
tpctl
LOGIN
xdm
wsmoused
sshd
raidframeparity
postfix
ndbootd
moused
mixerctl
mdnsd
isibootd
iscsi_target
inetd
identd
httpd
hostapd
ftpd
envsys
dbus
cron
pc2#