From nobody Mon Jul 4 19:30:25 2022 X-Original-To: freebsd-arm@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 428ED1CC0790 for ; Mon, 4 Jul 2022 19:30:58 +0000 (UTC) (envelope-from karl@denninger.net) Received: from colo1.denninger.net (colo1.denninger.net [104.236.120.189]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4LcGB937tjz3FlX for ; Mon, 4 Jul 2022 19:30:57 +0000 (UTC) (envelope-from karl@denninger.net) Received: from denninger.net (097-081-026-048.res.spectrum.com [97.81.26.48]) by colo1.denninger.net (Postfix) with ESMTP id 0EB2E2110A8 for ; Mon, 4 Jul 2022 15:30:26 -0400 (EDT) Received: from [192.168.10.25] (D15.Denninger.Net [192.168.10.25]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by denninger.net (Postfix) with ESMTPSA id 90EF14ABA62 for ; Mon, 4 Jul 2022 15:30:26 -0400 (EDT) Message-ID: <35b616b9-6624-f3ad-6526-98fd0af31672@denninger.net> Date: Mon, 4 Jul 2022 15:30:25 -0400 List-Id: Porting FreeBSD to ARM processors List-Archive: https://lists.freebsd.org/archives/freebsd-arm List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-arm@freebsd.org MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: 13.1R problems on Pi3 Content-Language: en-US To: freebsd-arm@freebsd.org References: <20220704003639.GA1165@www.zefox.net> <8820A9EC-A25E-4D0A-9F8F-52114E58B66F@yahoo.com> <6c377413-9430-54d2-3f92-1215055ca30a@denninger.net> <20220704152834.GA1771@www.zefox.net> <7ce87eef-ded5-8b00-3f11-14407b8af78d@denninger.net> <20220704182526.GB1771@www.zefox.net> From: Karl Denninger In-Reply-To: <20220704182526.GB1771@www.zefox.net> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-512; boundary="------------ms080305060702020808050203" X-Rspamd-Queue-Id: 4LcGB937tjz3FlX X-Spamd-Bar: ----- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=pass (policy=none) header.from=denninger.net; spf=pass (mx1.freebsd.org: domain of karl@denninger.net designates 104.236.120.189 as permitted sender) smtp.mailfrom=karl@denninger.net X-Spamd-Result: default: False [-5.64 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FREEFALL_USER(0.00)[karl]; FROM_HAS_DN(0.00)[]; SIGNED_SMIME(-2.00)[]; R_SPF_ALLOW(-0.20)[+mx:c]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.20)[multipart/signed,multipart/alternative,text/plain]; HAS_ATTACHMENT(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-arm@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-1.000]; RCVD_COUNT_THREE(0.00)[3]; TO_DN_NONE(0.00)[]; NEURAL_HAM_SHORT(-0.74)[-0.742]; DMARC_POLICY_ALLOW(-0.50)[denninger.net,none]; NEURAL_HAM_MEDIUM(-1.00)[-0.996]; MLMMJ_DEST(0.00)[freebsd-arm]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:+,3:~,4:~]; ASN(0.00)[asn:14061, ipnet:104.236.64.0/18, country:US]; RCVD_TLS_LAST(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; RECEIVED_SPAMHAUS_PBL(0.00)[97.81.26.48:received] X-ThisMailContainsUnwantedMimeParts: N This is a cryptographically signed message in MIME format. --------------ms080305060702020808050203 Content-Type: multipart/alternative; boundary="------------taSOWlbHoIX0mdn3YEEe0dek" --------------taSOWlbHoIX0mdn3YEEe0dek Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 7/4/2022 14:25, bob prohaska wrote: > On Mon, Jul 04, 2022 at 12:17:15PM -0400, Karl Denninger wrote: >> On 7/4/2022 11:28, bob prohaska wrote: >>> On Sun, Jul 03, 2022 at 10:36:35PM -0400, Karl Denninger wrote: >>> >>> Can any sense be made of the few ping responses obtained when ntp >>> is coming up? It's looks as if something happens after ntp runs >>> that blocks subsequent network traffic, but why starting an outbound >>> ping should partly unblock things is obscure to me. >> Yes.?? The odds are reasonably high that there is confusion as to which MAC >> address maps to which device.?? This implies there's a loop between the two >> switches (e.g. there is more than one way for packets to get into and out of >> each said switch to the other) or the two devices are claiming the same MAC >> address and thus when each "speaks" and performs ARP it "grabs" the map >> which works until the next one pipes up and it grabs it. >> > > Looks like that's the problem. There's only one cable between switches, but > here's what I get from ifconfig on each host: "ifconfig ue0 ether xx:xx:xx:xx:xx:xx" (or the stanza "ether xxxxx" in the ifconfig line in /etc/rc.conf to set the address) SHOULD work.  Be aware that if it scrambles things you'll have to either use a console cable or pull power but that is supposed to work.  You may also have to drop the connection to the switch (either with power or by pulling the ethernet cable) for it to recognize that the port has "reset" and should be re-learned although once again that's not SUPPOSED to be required. I recommend using the first three octets of some manufacturer that is basically impossible for you ever see on your network to prevent the possibility of stomping on something in the future by accident.  The list of manufacturers can be found here: https://gist.github.com/aallan/b4bb86db86079509e6159810ae9bd3e4 -- Karl Denninger karl@denninger.net /The Market Ticker/ /[S/MIME encrypted email preferred]/ --------------taSOWlbHoIX0mdn3YEEe0dek Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit
On 7/4/2022 14:25, bob prohaska wrote:
On Mon, Jul 04, 2022 at 12:17:15PM -0400, Karl Denninger wrote:

On 7/4/2022 11:28, bob prohaska wrote:

On Sun, Jul 03, 2022 at 10:36:35PM -0400, Karl Denninger wrote:

Can any sense be made of the few ping responses obtained when ntp
is coming up? It's looks as if something happens after ntp runs
that blocks subsequent network traffic, but why starting an outbound
ping should partly unblock things is obscure to me.

Yes.?? The odds are reasonably high that there is confusion as to which MAC
address maps to which device.?? This implies there's a loop between the two
switches (e.g. there is more than one way for packets to get into and out of
each said switch to the other) or the two devices are claiming the same MAC
address and thus when each "speaks" and performs ARP it "grabs" the map
which works until the next one pipes up and it grabs it.


 
Looks like that's the problem. There's only one cable between switches, but
here's what I get from ifconfig on each host:

"ifconfig ue0 ether xx:xx:xx:xx:xx:xx" (or the stanza "ether xxxxx" in the ifconfig line in /etc/rc.conf to set the address) SHOULD work.  Be aware that if it scrambles things you'll have to either use a console cable or pull power but that is supposed to work.  You may also have to drop the connection to the switch (either with power or by pulling the ethernet cable) for it to recognize that the port has "reset" and should be re-learned although once again that's not SUPPOSED to be required.

I recommend using the first three octets of some manufacturer that is basically impossible for you ever see on your network to prevent the possibility of stomping on something in the future by accident.  The list of manufacturers can be found here:

https://gist.github.com/aallan/b4bb86db86079509e6159810ae9bd3e4

--
Karl Denninger
karl@denninger.net
The Market Ticker
[S/MIME encrypted email preferred]
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