periodic daily produces ridiculously huge report files

Hi,

I recently upgraded from 13-STABLE to MAIN, now at FreeBSD 14.0-ALPHA1 amd64 1400094 #12 main-n264689-580cadd6a5f0, a custom kernel compiled *without* IPv6 (WITHOUT_INET6=yes).

Ever since either upgrading to MAIN or WITHOUT_INET6=yes [1] I noticed that periodic daily still runs in the morning failing to mail ridiculously huge report files (>= 90 *GB*).

[1] Can't remember when this started.

I believe to have found the step in periodic daily causing these huge files, but I do not know why:

1) I used to run default daily_status_network_netstat_flags="-d -W" in /etc/periodic.conf

This normally produces an output like:

	MWN> netstat -i -d -W -n 
	Name        Mtu Network            Address              Ipkts Ierrs Idrop    Opkts Oerrs  Coll  Drop
	vtnet0     1490 <Link#1>           fa:16:3e:37:a7:35   963666     0     0  1145053     0     0     0
	vtnet0        - 1.2.3.4/32         1.2.3.4             859598     -     -  1068898     -     -     -
	vtnet0        - 10.20.30.40/32     10.20.30.40          12176     -     -        0     -     -     -
	vtnet0        - 50.60.70.80/32     50.60.70.80              0     -     -        0     -     -     -
	vtnet0        - 100.100.100.10/32  100.100.100.10        5200     -     -        0     -     -     -
	vtnet1*    1500 <Link#2>           fa:16:3e:58:c8:c9        0     0     0        0     0     0     0
	lo0       16384 <Link#3>           lo0                     20     0     0       20     0     0     0
	lo0           -        -     -     -        -     -     -     -
	lo0           -        -     -     -        -     -     -     -
	lo0           - 127.0.0.0/8        127.0.0.1               20     -     -       20     -     -     -
	bridge0    1490 <Link#4>           58:9c:fc:00:61:18   186483     0     0   173172     0     0     0
	bridge0       - 10.2.2.0/24        10.2.2.254            6625     -     -     6698     -     -     -
	bridge0       - 10.2.2.199/32      10.2.2.199            5198     -     -        0     -     -     -
	bridge0       - 10.2.2.220/32      10.2.2.220          363021     -     -        0     -     -     -
	ipsec0     1400 <Link#5>           ipsec0              852284     0     0  1035859     0     0     0
	ipsec0        - 10.2.2.0/24        10.2.2.250          391221     -     -   941898     -     -     -
	pflog0    33152 <Link#6>           pflog0                   0     0     0    49185     0     0     0
	epair201a  1490 <Link#7>           02:0a:28:51:b5:0a    33154     0     0    32531     0     0     0
	epair203a  1490 <Link#11>          02:0b:44:a0:f4:0a     2807     0     0     2567     0     0     0
	epair2a    1490 <Link#15>          02:22:d3:ae:82:0a     7635     0     0     5435     0     0     0
	epair1a    1490 <Link#19>          02:61:a8:aa:89:0a   142474     0     0   132256     0     0     0
	epair6a    1490 <Link#23>          02:b4:4a:c7:dd:0a      228     0     0      213     0     0     0
	epair5a    1490 <Link#27>          02:ba:52:8a:6d:0a      185     0     0      170     0     0     0

But pretty often "netstat -i -d -W -n" produces garbage like spaces or "0". This fills /tmp pretty fast (luckily a compressed zfs filesystem) and my mta still tries to mail in the morning.


2) I modified /etc/periodic.conf to daily_status_network_netstat_flags="-d -W -4"

This produces an output like:

	MWN> netstat -i -d -W -n -4 
	Name      Mtu Network            Address           Ipkts Ierrs Idrop    Opkts Oerrs  Coll  Drop
	vtnet0      - 1.2.3.4/32         1.2.3.4          859590     -     -  1068102     -     -     -      
	vtnet0      - 10.20.30.40/32     10.20.30.40       11592     -     -        0     -     -     -
	vtnet0      - 50.60.70.80/32     50.60.70.80           0     -     -        0     -     -     -
	vtnet0      - 100.100.100.10/32  100.100.100.10     5192     -     -        0     -     -     -      
	lo0         - 127.0.0.0/8        127.0.0.1            20     -     -       20     -     -     -
	bridge0     - 10.2.2.0/24        10.2.2.254         6623     -     -     6696     -     -     -
	bridge0     - 10.2.2.199/32      10.2.2.199         5196     -     -        0     -     -     -
	bridge0     - 10.2.2.220/32      10.2.2.220       363021     -     -        0     -     -     -
	ipsec0      - 10.2.2.0/24        10.2.2.250       391221     -     -   941898     -     -     -

This fixed my issue with periodic daily.

But I would like to know, if this has to do with WITHOUT_INET6=yes or FreeBSD 14?
Or something different ...

Did someone of you experiences equal behaviour of "netstat -i -d -W"?
Anyone with WITHOUT_INET6=yes willing to test this?

Regards,
Michael