From nobody Tue Jan 04 20:56:48 2022 X-Original-To: freebsd-current@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 4411D1929707 for ; Tue, 4 Jan 2022 20:56:56 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) Received: from CAN01-TO1-obe.outbound.protection.outlook.com (mail-eopbgr670071.outbound.protection.outlook.com [40.107.67.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mail.protection.outlook.com", Issuer "DigiCert Cloud Services CA-1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4JT4fw0CyLz4T0w for ; Tue, 4 Jan 2022 20:56:56 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=UciGXlkGBKZT5cylzzS48h6a4DqE45tm8EL9qsk5faCuOl+KLwNDwwuAQHGiRP9n95Y2wTf+6YMa4UW4IyOVDKPW5S6GwkQUKJvn1c4PlHk4TADQBJZkYBaP8wuvgm98Jc2jBRwrlOsaOUM8sfEPzc/WZq25gS51QYyRZGcZkZCivOfrbnmxShYavE+R50yhpuHmTRqXnrhQ1l0pG9/qtoZjVa1loJVF+yqUD0WUeOtf2DFvir8dW07iFf3PwJjdGXbPXmD1tjU9Kmt6ZV+h4S8cUvUBWQR0Hv6r/bKhXA1cN6IidZEBj8O1cdW0K29NEoMqHzRXixMcFn/ALsEWWg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=1RxxCosFtX6N2hD5gWtp85aqHRA+ifnZfWGzqSl0ebw=; b=AtCjcmIzTt7mEC76xL3sKLOo7jSBHmZLgJ8AyOZEdheXBqTnFoFco8d1ZSb9ItcwwSVg2rFY3/EedZf1tzAUtBBUuF6VaThSloTPsalrl/ETXzktd8mKW+tea5P3kLd9MQ5jrW6bQ1V0mkUTw5U6tJrpABOqVpEGzMDN/Typg35nZoEVTcoeXh2oyGvAlz2w4iLVBZ4eCPBEptP2I/j9wglVPhEYtVOfUAMtzKYh0OL6t/4MtiJSaZl8SrQHwjuMZfyQFE0W/X1zchVaQMxU2n48R9xWMhtDMcj3SOyoSUg4e6Mof6wwr5JA35X20y4n8YgVlOJdJRmUObWzKJT/Qw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=uoguelph.ca; dmarc=pass action=none header.from=uoguelph.ca; dkim=pass header.d=uoguelph.ca; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=uoguelph.ca; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=1RxxCosFtX6N2hD5gWtp85aqHRA+ifnZfWGzqSl0ebw=; b=NHjjWXrSi4H9oeV9KfsIcJQDc4hWgJdLc9anzrG7C5iJfPheU5DiLQjJPScrU6EujFe4BKpW8NMoVirh+T7tu2BiaTt8KkzwnncYjVmLKUYS1LRcfCJ63IHt8KcwcG4huzU5dd7zfYrsd3w9so3jHEoWfqxOSbLTyQGDZmDpDA29Si3pk8l9YsLypW/HTQV6D73hBSplWTsadA3wqXdzYDWEH6vGk2RrtAl4B+Pl7uarmNiNYysaY8mopHY+rp90/jVmvXk+qqOSi9eZDwlIp+ijyByw/+ZVAGKTIGRIHMqHYFkNIawnOoMBxXzBgCHATtf4V2kooLq2DdqlEMh5vA== Received: from YQXPR0101MB0968.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:c00:19::29) by QB1PR01MB3985.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:c00:3c::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4867.7; Tue, 4 Jan 2022 20:56:48 +0000 Received: from YQXPR0101MB0968.CANPRD01.PROD.OUTLOOK.COM ([fe80::50bf:ecf6:9d13:fd03]) by YQXPR0101MB0968.CANPRD01.PROD.OUTLOOK.COM ([fe80::50bf:ecf6:9d13:fd03%4]) with mapi id 15.20.4844.016; Tue, 4 Jan 2022 20:56:48 +0000 From: Rick Macklem To: "freebsd-current@freebsd.org" , "Alexander@leidinger.net" Subject: Re: [RFC] Making mount_nfs to attempt NFSv4 before NFSv3 and NFSv2? Thread-Topic: [RFC] Making mount_nfs to attempt NFSv4 before NFSv3 and NFSv2? 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none X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] X-ThisMailContainsUnwantedMimeParts: N Alexander Leidinger wrote:=0A= > Rick Macklem wrote:=0A= [stuff snipped]=0A= > >=0A= > > Other than testing diskless NFS root file systems, I do not have a=0A= > > strong opinion w.r.t. whether the default should change.=0A= > >=0A= > > If the default stays as NFSv3, a fallback to NFSv4 could be done, which= =0A= > > would handle the NFSv4 only server case. (No one uses NFSv2 any more,= =0A= > > so the fallback to NFSv2 is almost irrelevant, imho.)=0A= >=0A= > As you particiate in interoperability tests, would it make sense to=0A= > check how those other implementations handle this case? I naively=0A= > assume you have some contacts or a mailinglist you could use for that.=0A= Not sure what you are asking, but...=0A= The only other client I am familiar with is the Linux one.=0A= It does NFSv4, then NFSv3 (I think they have dropped NFSv2 support).=0A= Linux also does handle NFSv4 root file systems.=0A= =0A= The other clients I know of (VMware and Windows) do not paticipate=0A= in the IETF Working group's interoperability testing, unfortunately.=0A= (And I have no contact with either of these groups.)=0A= =0A= rick=0A= =0A= Bye,=0A= Alexander.=0A= =0A= =0A= --=0A= http://www.Leidinger.net Alexander@Leidinger.net: PGP 0x8F31830F9F2772BF=0A= http://www.FreeBSD.org netchild@FreeBSD.org : PGP 0x8F31830F9F2772BF=0A= =0A=