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Tue, 10 Mar 2026 17:13:35 -0700 (PDT) List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 References: In-Reply-To: From: Rick Macklem Date: Tue, 10 Mar 2026 17:13:22 -0700 X-Gm-Features: AaiRm51UVLpQsG2E7BvOtNcaopEr_XWyZk6coLRIn8w1x2uIBJrqBFVECqU5_TY Message-ID: Subject: Re: FreeBSD 16 nfsd: Unexpected NFS error 'NFS4ERR_NOFILEHANDLE' while probing named attr support To: Dan Shelton Cc: ms-nfs41-client-devel@lists.sourceforge.net, freebsd-hackers@freebsd.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spamd-Result: default: False [-5.00 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; ARC_ALLOW(-1.00)[google.com:s=arc-20240605:i=1]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.999]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20230601]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; TAGGED_FROM(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; TO_DN_SOME(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; FREEMAIL_FROM(0.00)[gmail.com]; MIME_TRACE(0.00)[0:+]; FREEMAIL_TO(0.00)[gmail.com]; RCPT_COUNT_THREE(0.00)[3]; FROM_HAS_DN(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; TO_MATCH_ENVRCPT_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; MISSING_XM_UA(0.00)[]; MID_RHS_MATCH_FROMTLD(0.00)[]; TAGGED_RCPT(0.00)[]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; RCVD_COUNT_ONE(0.00)[1]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::534:from] X-Rspamd-Queue-Id: 4fVrnf5SKzz3rCj X-Spamd-Bar: ---- On Tue, Mar 10, 2026 at 3:40=E2=80=AFPM Dan Shelton wrote: > > Hello, > > some odd issue with ms-nfs41-client: when connecting to a FreeBSD > 16.0-CURRENT main-n284403-895a97c875a0 (installed from > FreeBSD-16.0-CURRENT-amd64-20260224-16822dac32ab-284159-disc1.iso) NFS se= rver: > > Windows side: > $ /sbin/nfs_mount -o rw 'F:' 'nfs://42.28.16.228//nfsdata' > Successfully mounted '42.28.16.228@NFS@2049' to drive 'F:' > > ms-nfs41-client prints this warning: > 204c: nfs41_superblock_getattr: Unexpected NFS error > 'NFS4ERR_NOFILEHANDLE' while probing named attr support > (the warning comes from > https://github.com/kofemann/ms-nfs41-client/blob/master/daemon/nfs41_ops.= c#L1394) Hmm. The most obvious cause would be that the file system is not exported. Check the /etc/exports and, if you use the ZFS nfshare property, /etc/zfs/exports and make sure the file system is exported? As I've already mentioned, a packet capture is what I use to figure out what is going on. On the FreeBSD server.. # tcpdump -s 0 -w out.pcap host - For a simple failure like the above, start it before doing the mount and then kill it after the failure and send me "out.pcap". (If there is going to be stuff in out.pcap that you need to keep confidential, then you'll need to look at out.pcap yourself in wireshare= .) rick > > The Windows "FILE_NAMED_STREAMS" support is OFF then, which breaks our > applications. > > Dan > -- > Dan Shelton - Cluster Specialist Win/Lin/Bsd >