On Thu, 3 Feb 2022, Takashi Inoue wrote:

Hi Chadd and All,

Thanks. I was asleep.

BTW, I wish that a treatment of the endless repeated message
in any way is implemented in release.

ARP_LOG is behind a sysctl; you can just
        sysctl net.link.ether.arp.log_level=0
to quiten them all.

It's alos behind ppsratecheck so it should be throttled.

Dose someone can do this?

Question: which driver is this with as that may help figuring the
problem out?   Is this iwlwifi because then that is likely a problem
there and I should figure out what's going wrong.

Best Regards,
Bjoern


Best,
T.Inoue



On 2/3/22 04:59, Adrian Chadd wrote:
Just comment out the AR_LOG line. Use '//', not '#'.


-a

On Wed, 2 Feb 2022 at 11:17, Takashi Inoue <inoue.taka...@nihon-u.ac.jp> wrote:

Hi all,

I want to ask a favor to you.
It may not concern wireless network directly. I'm sorry for this.
I am using 13-STABLE ISO at 13th Jan.

I get the following message in dmesg many many times repeatedly, lets
say, every one second.

arp: packet with invalid ethernet address length 0 received on wlan0

According to a Google search, the reason of this may be in my network
environment.
But, I cannot change it. So, I want to stop the message by re-compiling
kernel(module).

I am going to modify /src/sys/netinet/if_ether.c around line 730.
I am thinking just comment out the ARP_LOG function lines, like
---------------------------------------------------------
         if (hlen != 0 && hlen != ar->ar_hln) {
#               ARP_LOG(LOG_NOTICE,
# "packet with invalid %s address length %d received on %s\n",
#                   layer, ar->ar_hln, if_name(ifp));
                 m_freem(m);
                 return;
         }
----------------------------------------------------------

Do I have better to cut(comment out) the whole the if(){} part?
Or, do you have a any better solution to suppress or reduce the message?
Please give me some advice.

Best,
T. Inoue




--
Bjoern A. Zeeb                                                     r15:7

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