From nobody Thu Jun 2 03:24:56 2022 X-Original-To: freebsd-net@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 BE0431B4A0B4 for ; Thu, 2 Jun 2022 03:25:05 +0000 (UTC) (envelope-from jmg@gold.funkthat.com) Received: from gold.funkthat.com (gold.funkthat.com [IPv6:2001:470:800b::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "gate2.funkthat.com", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4LDBGS6FVvz4bKD for ; Thu, 2 Jun 2022 03:25:04 +0000 (UTC) (envelope-from jmg@gold.funkthat.com) Received: from gold.funkthat.com (localhost [127.0.0.1]) by gold.funkthat.com (8.15.2/8.15.2) with ESMTPS id 2523Oucb052465 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 1 Jun 2022 20:24:56 -0700 (PDT) (envelope-from jmg@gold.funkthat.com) Received: (from jmg@localhost) by gold.funkthat.com (8.15.2/8.15.2/Submit) id 2523OuBI052464 for freebsd-net@FreeBSD.org; Wed, 1 Jun 2022 20:24:56 -0700 (PDT) (envelope-from jmg) Date: Wed, 1 Jun 2022 20:24:56 -0700 From: John-Mark Gurney To: freebsd-net@FreeBSD.org Subject: make NFSv3 default now on diskless Message-ID: <20220602032456.GY88842@funkthat.com> Mail-Followup-To: freebsd-net@FreeBSD.org List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Operating-System: FreeBSD 11.3-STABLE amd64 X-PGP-Fingerprint: D87A 235F FB71 1F3F 55B7 ED9B D5FF 5A51 C0AC 3D65 X-Files: The truth is out there X-URL: https://www.funkthat.com/ X-Resume: https://www.funkthat.com/~jmg/resume.html X-TipJar: bitcoin:13Qmb6AeTgQecazTWph4XasEsP7nGRbAPE X-to-the-FBI-CIA-and-NSA: HI! HOW YA DOIN? can i haz chizburger? User-Agent: Mutt/1.6.1 (2016-04-27) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (gold.funkthat.com [127.0.0.1]); Wed, 01 Jun 2022 20:24:56 -0700 (PDT) X-Rspamd-Queue-Id: 4LDBGS6FVvz4bKD X-Spamd-Bar: / Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of jmg@gold.funkthat.com has no SPF policy when checking 2001:470:800b::2) smtp.mailfrom=jmg@gold.funkthat.com X-Spamd-Result: default: False [-0.51 / 15.00]; MID_RHS_MATCH_FROM(0.00)[]; ARC_NA(0.00)[]; FREEFALL_USER(0.00)[jmg]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; TO_DN_NONE(0.00)[]; AUTH_NA(1.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_SPAM_MEDIUM(0.29)[0.288]; DMARC_NA(0.00)[funkthat.com]; NEURAL_HAM_SHORT(-1.00)[-1.000]; MLMMJ_DEST(0.00)[freebsd-net]; FORGED_SENDER(0.30)[jmg@funkthat.com,jmg@gold.funkthat.com]; R_SPF_NA(0.00)[no SPF record]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:6939, ipnet:2001:470::/32, country:US]; FROM_NEQ_ENVFROM(0.00)[jmg@funkthat.com,jmg@gold.funkthat.com]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-ThisMailContainsUnwantedMimeParts: N I just booted FreeBSD-current diskless, using NFS root, and I ended up having issues because by default, NFS root is only v2. One of things that happened was disk space available was listed as -138G, or -144830429K. I assume this is because the server is reporting TBs instead. If I mount via mount_nfs, the sizes are normal/correct because it mounts v3. The other issue that I ran into is that NFSv2 can't access >4GB files (or create them). Anyone object to adding BOOTP_NFSV3 to GENERIC? Or maybe making it a tunable that defaults to set, because it seems a bit crazy to default to v2 these days. This option was added in 432aad0e in 1997 so that the nfs_diskless structure didn't need to be filled out. Does anything even populate/fill it out anymore? I saw code in i386/i386/locore.s that does this, but it doesn't appear anywhere else. There also appears to possibly be a way via mount options, but I can't see where it's documented to set them. -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."