HThis machine was rebooted few days ago and immediately it starts
behave like this,

FreeBSD xxxxxx.net 10.4-RELEASE-p1 FreeBSD 10.4-RELEASE-p1 #0: Mon Oct
30 21:13:49 +04 2017     x...@xxxxxx.net:/usr/obj/usr/src/sys/RTR
amd64

It's 64 bit system with 2 MB of memory:

# vmstat
procs      memory      page                    disks     faults         cpu
r b w     avm    fre   flt  re  pi  po    fr  sr md0 ad0   in   sy   cs us sy id
1 0 0   2145M   716M   384   0   0   0   617 229   0   0 3678 2043 8230  0  1 99

Flushing rules doesn't help, there is 3 IPSEC tunnels in racoon.conf
overall, IPv4 and IPv6, so 12 rules in setkey.conf




Best regards,
Misak Khachatryan


On Mon, Feb 19, 2018 at 1:40 PM, Eugene Grosbein <eu...@grosbein.net> wrote:
> 19.02.2018 16:28, Misak Khachatryan wrote:
>
>> # vmstat -m | egrep "sec|sah|pol"
>>  inpcbpolicy   122     4K       -  4955796  32
>>     secasvar 48558 12140K       -  1572045  256
>>       sahead     3     1K       -       15  256
>>  ipsecpolicy   256    64K       -  9911740  256
>> ipsecrequest    12     2K       -       48  128
>>   ipsec-misc 389632 12176K       - 12575976  16,32,64
>
> Looking at huge "MemUse" values for secasvar and ipsec-misc,
> I suspect some kind of memory leak.
>
> FreeBSD 11.1 has new IPSEC implementation and you may consider trying new 
> version.
>
> Meantime, you can try to flush all IPSEC-related data from the system:
>
> service racoon stop
> setkey -F; setkey -FP
> service racoon start
>
> If that does not help, reboot and start monitoring these numbers for secasvar 
> and ipsec-misc.
>
> How many IPSEC tunnells/associations do you have simultaneously?
> And again, are those systems 32 bit or 64 bit?
>
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