From nobody Fri Aug 26 22:17:45 2022 X-Original-To: freebsd-stable@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 4MDvND4r79z4b3RP for ; Fri, 26 Aug 2022 22:17:48 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) Received: from CAN01-YT3-obe.outbound.protection.outlook.com (mail-yt3can01on2054.outbound.protection.outlook.com [40.107.115.54]) (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 4MDvNC445Cz3yWY for ; Fri, 26 Aug 2022 22:17:47 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=HWD70e0gULgJAsWaGGBZuyHNI8yRgWITybYxfjeGusk3GHBUbUY4LLn6RCId/tyiLc8hy1kYSyLqFBFnOGv8SoM18+Xl8smBqvzPAog8x9oA/pRoc3qQc+hJsiw6Sxm5QujzEc1RLECP5QT2Zq1ykowFjSMYbr/TZGDkzCe27O2zlYr7IT8AVfaQsq5dI4vlr9iBhS0VHYNrZ0qsAHPnfPgGTADGU4vosFgSK64Xx6fq/M134nil/n4K+iv1U7aw6zlGqQEbKGz5JmqhXAcDgJg+VQsBjfy4v/sIy7iSCfZcugq3zIdD9sGt2FHtJKk5JQV873l59qoBkQeorWcb+A== 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=KQPpenJT5BqBZYtafh+F4jUd7ucu2ww25JBqGQmMgCM=; b=ferIvLVtWgiyg2ZPYHwhVwgWvVULIjW1oGUnBHANMX6jFeC5SnkFa9DZ+3IKRdHM0baRnCFi19hecGWiv5+L8egZqyHqxahBWJZLxhsMROEC4lBjoOYpMz08rhxvST128eXgUZ9Kp4FdBwtljzd04s0lOrAvLiOyPZLZhbWZeddkpGUhcU+XZWIwOtiUhR9I4VveUnPVeAiMlMVfcRPGD+x9K4bi62m3SyuQsnFM9/iiWPaoMLVzfRxOr5jRPxTbkyABMheaRouffKTitpEnk5iJU5i7sL7UcsquEo3rvY6WQxkiMxVASkk/BLofVbsle4GHWtdGsltd3IlB4DfvSQ== 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=KQPpenJT5BqBZYtafh+F4jUd7ucu2ww25JBqGQmMgCM=; b=kl29kaJAx+gkTVcHNxCaBs6T0ViJ1gkUGqZr8RebEe+9PxIQ5hQX0cBaoPut59Bxoxsyqb2DvIHqUzdMJL+/C6EmGYBXKnke0i26iPOWIbIS5PqYX60LeI6k+RhPZWWzkmMbS/QrE+RTQaqTPatqhH40jXbSxS81Y9r8idARs0KEFae3Bz9TBWDq0BUFmlTO3ffq3bO32tbvjoPqy/LfGG+gaAsYdTsq1jET3dga0EcqTA8HN1GCr6GZhW6udu9A/IjAonuNc68go+F7uS2WJqzNzKCoEPYF2wV+9f4MUe8WofYWxkVklx98k/GqgeW3T7XPyNi5uZyn4SOUuQrZrg== Received: from YT4PR01MB9736.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b01:e6::17) by YQBPR01MB10350.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:c01:7c::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5566.14; Fri, 26 Aug 2022 22:17:45 +0000 Received: from YT4PR01MB9736.CANPRD01.PROD.OUTLOOK.COM ([fe80::4c04:eddf:6168:b3ec]) by YT4PR01MB9736.CANPRD01.PROD.OUTLOOK.COM ([fe80::4c04:eddf:6168:b3ec%3]) with mapi id 15.20.5546.022; Fri, 26 Aug 2022 22:17:45 +0000 From: Rick Macklem To: Ganbold Tsagaankhuu CC: freebsd-stable Subject: Re: NFS issue - newnfs_request: Wrong session srvslot=1 slot=0, freeing free slot!! Thread-Topic: NFS issue - newnfs_request: Wrong session srvslot=1 slot=0, freeing free slot!! 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FROM_HAS_DN(0.00)[]; FREEFALL_USER(0.00)[rmacklem]; RCVD_IN_DNSWL_NONE(0.00)[40.107.115.54:from]; RCVD_COUNT_THREE(0.00)[3]; TO_DN_ALL(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RWL_MAILSPIKE_POSSIBLE(0.00)[40.107.115.54:from] X-ThisMailContainsUnwantedMimeParts: N Ganbold Tsagaankhuu wrote:=0A= > > Rick,=0A= > >=0A= > > On Fri, Aug 26, 2022 at 11:18 AM Rick Macklem > >> wrote:=0A= Ganbold Tsagaankhuu > wrote:=0A= > > > Hi,=0A= > > >=0A= > > > We are having trouble with NFS running on STABLE:=0A= > > >=0A= > > > Aug 26 02:21:42 iron2 kernel: newnfs_request: Wrong session srvslot= =3D1 slot=3D0=0A= [stuff snipped]=0A= > > > Aug 26 02:22:46 iron2 kernel: newnfs_request: Wrong session srvslot= =3D1 slot=3D0=0A= > > > Aug 26 02:22:46 iron2 kernel: freeing free slot!!=0A= > > >=0A= > > > We are running FreeBSD 13.1-STABLE #3 stable/13-n252198-c1434fd2dea: = Fri Aug 26 01:51:53 UTC 2022 and mount options are:=0A= > > >=0A= > > > rw,nfsv4,minorversion=3D1,bg,soft,timeo=3D20,retrans=3D5,retrycnt=3D5= =0A= > > > ro,nfsv4,minorversion=3D1,bg,soft,timeo=3D20,retrans=3D5,retrycnt=3D5= =0A= > > >=0A= > > > Is there any fix for this issue?=0A= Oh, and one more thing. If you have multiple clients mounting the=0A= NFSv4 server, make sure they all have unique hostids.=0A= Check /etc/hostid and "sysctl kern.hostuuid". If two clients have the=0A= same kern.hostuuid, there will be lots of trouble.=0A= =0A= rick=0A= =0A= > - Don't use "soft" mounts. See the Bugs section of "man mount_nfs".=0A= > There are patches in stable/13 dated July 10, 2022. (I have no idea=0A= > how to tell if n252198 would have them) that help, but use of "soft"=0A= > mounts will never work correctly for NFSv4.=0A= > - The attached small patch (not committed yet, but should be in=0A= > stable/13 in about 10days) fixes a couple of corner cases. If you=0A= > are using a FreeBSD NFS server, I believe these corner cases only=0A= > occur after the NFS server reboots.=0A= >=0A= > rick=0A= > ps: If you test the attached patch, please let me know how it goes.=0A= >=0A= > Is this patch for NFS server? We are using Netapp NFS server on server si= de.=0A= No, it is for the client. However, as far as I know, a Netapp Filer never= =0A= generates a NFSERR_BADSESSION error (except maybe if you were using=0A= a post-July 10. 2022 client), so the patch probably doesn't affect you.=0A= (Get rid of "soft" and you should be happy.)=0A= =0A= rick=0A= =0A= thanks,=0A= =0A= Ganbold=0A= =0A= =0A= =0A= thanks a lot,=0A= =0A= Ganbold=0A= =0A= =0A=