Re: NFS V4 calls for a NFS v3 mount

From: Roger Heflin
Date: Sun Apr 06 2014 - 13:58:08 EST

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No where in the mount command did you tell it that this was a
nfsversion 3 only mount, the mount name itself means nothing to mount,
so it tired nfs version 4 first then nfs version 3.

Note this in the man page for nfs:
nfsvers=n The NFS protocol version number used to contact the
server's NFS service. If the server does not support
the requested version, the mount request
fails. If this option is not specified, the client negotiates a
suitable version with the server, trying version
4 first, version 3 second, and version 2 last.

On Sun, Apr 6, 2014 at 12:27 PM, Toralf FÃrster <toralf.foerster@xxxxxx> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
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>
> Probably a question better suited for a NFS noobs mailing list (is there any around ?) ...
>
> While playing with kernel 3.13.x, wireshark and NFS I realized, that mounting a NFS v3 share results in NFS V4 Calls - is this indented or a wireshark dissector issue ?
>
>
> $ cat /etc/exports
> # /etc/exports: NFS file systems being exported. See exports(5).
> /mnt/ramdisk 192.168.0.0/16(rw,fsid=0,insecure,no_subtree_check,async,no_root_squash)
>
>
> $ grep nfsv3 /etc/fstab
> n22:/mnt/ramdisk /mnt/nfsv3 nfs auto,bg,intr,soft
>
>
> $ ~/devel/wireshark/tshark -r /var/tmp/nfsv3.pcapng.gz
> 1 0.000000000 127.0.0.1 -> 127.0.0.1 DNS 73 Standard query 0x50bd A n22.fritz.box
> 2 0.000465000 127.0.0.1 -> 127.0.0.1 DNS 73 Standard query 0xa14f AAAA n22.fritz.box
> 3 0.006264000 127.0.0.1 -> 127.0.0.1 DNS 119 Standard query response 0x50bd A 192.168.178.21
> 4 0.007134000 127.0.0.1 -> 127.0.0.1 DNS 115 Standard query response 0xa14f
> 5 0.017775000 192.168.178.21 -> 192.168.178.21 TCP 74 733 â nfs [SYN] Seq=0 Win=43690 Len=0
> 6 0.017791000 192.168.178.21 -> 192.168.178.21 TCP 74 nfs â 733 [SYN, ACK] Seq=0 Ack=1 Win=65535 Len=0
> 7 0.017808000 192.168.178.21 -> 192.168.178.21 TCP 66 733 â nfs [ACK] Seq=1 Ack=1 Win=342 Len=0
> 8 0.022889000 192.168.178.21 -> 192.168.178.21 NFS 110 V4 NULL Call
> 9 0.022953000 192.168.178.21 -> 192.168.178.21 TCP 66 nfs â 733 [ACK] Seq=1 Ack=45 Win=1024 Len=0
> 10 0.023021000 192.168.178.21 -> 192.168.178.21 NFS 94 V4 NULL Reply (Call In 8)
> 11 0.023049000 192.168.178.21 -> 192.168.178.21 TCP 66 733 â nfs [ACK] Seq=45 Ack=29 Win=342 Len=0
> 12 0.030779000 192.168.178.21 -> 192.168.178.21 NFS 254 V4 Call SETCLIENTID
> 13 0.030892000 192.168.178.21 -> 192.168.178.21 NFS 130 V4 Reply (Call In 12) SETCLIENTID
> 14 0.031247000 192.168.178.21 -> 192.168.178.21 NFS 166 V4 Call SETCLIENTID_CONFIRM
> 15 0.031433000 192.168.178.21 -> 192.168.178.21 NFS 114 V4 Reply (Call In 14) SETCLIENTID_CONFIRM
> 16 0.031455000 192.168.178.21 -> 192.168.178.21 TCP 74 945 â 48964 [SYN] Seq=0 Win=43690 Len=0
> 17 0.031469000 192.168.178.21 -> 192.168.178.21 TCP 74 48964 â 945 [SYN, ACK] Seq=0 Ack=1 Win=32768 Len=0
> 18 0.031482000 192.168.178.21 -> 192.168.178.21 TCP 66 945 â 48964 [ACK] Seq=1 Ack=1 Win=342 Len=0
> 19 0.031506000 192.168.178.21 -> 192.168.178.21 NFS 134 V1 CB_NULL Call
> 20 0.031514000 192.168.178.21 -> 192.168.178.21 TCP 66 48964 â 945 [ACK] Seq=1 Ack=69 Win=256 Len=0
> 21 0.031527000 192.168.178.21 -> 192.168.178.21 NFS 94 V1 CB_NULL Reply (Call In 19)
> 22 0.031538000 192.168.178.21 -> 192.168.178.21 TCP 66 945 â 48964 [ACK] Seq=69 Ack=29 Win=342 Len=0
> 23 0.060368000 192.168.178.21 -> 192.168.178.21 NFS 222 V4 Call PUTROOTFH | GETATTR
> 24 0.060433000 192.168.178.21 -> 192.168.178.21 NFS 278 V4 Reply (Call In 23) PUTROOTFH | GETATTR
> 25 0.060500000 192.168.178.21 -> 192.168.178.21 NFS 226 V4 Call GETATTR FH: 0x62d40c52
> 26 0.060550000 192.168.178.21 -> 192.168.178.21 NFS 162 V4 Reply (Call In 25) GETATTR
> 27 0.060590000 192.168.178.21 -> 192.168.178.21 NFS 230 V4 Call GETATTR FH: 0x62d40c52
> 28 0.060632000 192.168.178.21 -> 192.168.178.21 NFS 178 V4 Reply (Call In 27) GETATTR
> 29 0.060674000 192.168.178.21 -> 192.168.178.21 NFS 226 V4 Call GETATTR FH: 0x62d40c52
> 30 0.060714000 192.168.178.21 -> 192.168.178.21 NFS 162 V4 Reply (Call In 29) GETATTR
> 31 0.060787000 192.168.178.21 -> 192.168.178.21 NFS 230 V4 Call GETATTR FH: 0x62d40c52
> 32 0.060815000 192.168.178.21 -> 192.168.178.21 NFS 178 V4 Reply (Call In 31) GETATTR
> 33 0.060857000 192.168.178.21 -> 192.168.178.21 NFS 226 V4 Call GETATTR FH: 0x62d40c52
> 34 0.060885000 192.168.178.21 -> 192.168.178.21 NFS 142 V4 Reply (Call In 33) GETATTR
> 35 0.061002000 192.168.178.21 -> 192.168.178.21 NFS 226 V4 Call GETATTR FH: 0x62d40c52
> 36 0.061032000 192.168.178.21 -> 192.168.178.21 NFS 162 V4 Reply (Call In 35) GETATTR
> 37 0.061074000 192.168.178.21 -> 192.168.178.21 NFS 230 V4 Call GETATTR FH: 0x62d40c52
> 38 0.061101000 192.168.178.21 -> 192.168.178.21 NFS 258 V4 Reply (Call In 37) GETATTR
> 39 0.061186000 192.168.178.21 -> 192.168.178.21 NFS 238 V4 Call ACCESS FH: 0x62d40c52, [Check: RD LU MD XT DL]
> 40 0.061247000 192.168.178.21 -> 192.168.178.21 NFS 194 V4 Reply (Call In 39) ACCESS, [Allowed: RD LU MD XT DL]
> 41 0.061295000 192.168.178.21 -> 192.168.178.21 NFS 246 V4 Call LOOKUP DH: 0x62d40c52/mnt
> 42 0.061345000 192.168.178.21 -> 192.168.178.21 NFS 122 V4 Reply (Call In 41) LOOKUP Status: NFS4ERR_NOENT
> 43 0.081322000 192.168.178.21 -> 192.168.178.21 TCP 66 48964 â 945 [FIN, ACK] Seq=29 Ack=69 Win=256 Len=0
> 44 0.081520000 192.168.178.21 -> 192.168.178.21 TCP 66 945 â 48964 [FIN, ACK] Seq=69 Ack=30 Win=342 Len=0
> 45 0.081538000 192.168.178.21 -> 192.168.178.21 TCP 66 48964 â 945 [ACK] Seq=30 Ack=70 Win=256 Len=0
> 46 0.082241000 192.168.178.21 -> 192.168.178.21 TCP 66 733 â nfs [FIN, ACK] Seq=1973 Ack=1317 Win=367 Len=0
> 47 0.083260000 127.0.0.1 -> 127.0.0.1 Portmap 98 V2 GETPORT Call STAT(100024) V:1 UDP
> 48 0.083470000 192.168.178.21 -> 192.168.178.21 TCP 66 nfs â 733 [FIN, ACK] Seq=1317 Ack=1974 Win=1116 Len=0
> 49 0.083490000 192.168.178.21 -> 192.168.178.21 TCP 66 733 â nfs [ACK] Seq=1974 Ack=1318 Win=367 Len=0
> 50 0.083660000 127.0.0.1 -> 127.0.0.1 Portmap 70 V2 GETPORT Reply (Call In 47) Port:56333
> 51 0.083851000 127.0.0.1 -> 127.0.0.1 STAT 82 V1 NULL Call
> 52 0.083936000 127.0.0.1 -> 127.0.0.1 STAT 66 V1 NULL Reply (Call In 51)
> 53 0.084347000 192.168.178.21 -> 192.168.178.21 TCP 74 45166 â sunrpc [SYN] Seq=0 Win=43690 Len=0
> 54 0.084369000 192.168.178.21 -> 192.168.178.21 TCP 74 sunrpc â 45166 [SYN, ACK] Seq=0 Ack=1 Win=43690 Len=0
> 55 0.084387000 192.168.178.21 -> 192.168.178.21 TCP 66 45166 â sunrpc [ACK] Seq=1 Ack=1 Win=342 Len=0
> 56 0.085096000 192.168.178.21 -> 192.168.178.21 Portmap 126 V2 GETPORT Call NFS(100003) V:3 TCP
> 57 0.085119000 192.168.178.21 -> 192.168.178.21 TCP 66 sunrpc â 45166 [ACK] Seq=1 Ack=61 Win=342 Len=0
> 58 0.085383000 192.168.178.21 -> 192.168.178.21 Portmap 98 V2 GETPORT Reply (Call In 56) Port:2049
> 59 0.085405000 192.168.178.21 -> 192.168.178.21 TCP 66 45166 â sunrpc [ACK] Seq=61 Ack=33 Win=342 Len=0
> 60 0.085518000 192.168.178.21 -> 192.168.178.21 TCP 66 45166 â sunrpc [FIN, ACK] Seq=61 Ack=33 Win=342 Len=0
> 61 0.085555000 192.168.178.21 -> 192.168.178.21 TCP 66 sunrpc â 45166 [FIN, ACK] Seq=33 Ack=62 Win=342 Len=0
> 62 0.085566000 192.168.178.21 -> 192.168.178.21 TCP 66 45166 â sunrpc [ACK] Seq=62 Ack=34 Win=342 Len=0
> 63 0.085677000 192.168.178.21 -> 192.168.178.21 TCP 74 34541 â nfs [SYN] Seq=0 Win=43690 Len=0
> 64 0.085691000 192.168.178.21 -> 192.168.178.21 TCP 74 nfs â 34541 [SYN, ACK] Seq=0 Ack=1 Win=65535 Len=0
> 65 0.085705000 192.168.178.21 -> 192.168.178.21 TCP 66 34541 â nfs [ACK] Seq=1 Ack=1 Win=342 Len=0
> 66 0.085854000 192.168.178.21 -> 192.168.178.21 NFS 110 V3 NULL Call
> 67 0.085866000 192.168.178.21 -> 192.168.178.21 TCP 66 nfs â 34541 [ACK] Seq=1 Ack=45 Win=1024 Len=0
> 68 0.085888000 192.168.178.21 -> 192.168.178.21 NFS 94 V3 NULL Reply (Call In 66)
> 69 0.085899000 192.168.178.21 -> 192.168.178.21 TCP 66 34541 â nfs [ACK] Seq=45 Ack=29 Win=342 Len=0
> 70 0.085931000 192.168.178.21 -> 192.168.178.21 TCP 66 34541 â nfs [FIN, ACK] Seq=45 Ack=29 Win=342 Len=0
> 71 0.085946000 192.168.178.21 -> 192.168.178.21 TCP 66 nfs â 34541 [FIN, ACK] Seq=29 Ack=46 Win=1024 Len=0
> 72 0.085954000 192.168.178.21 -> 192.168.178.21 TCP 66 34541 â nfs [ACK] Seq=46 Ack=30 Win=342 Len=0
> 73 0.086219000 192.168.178.21 -> 192.168.178.21 Portmap 98 V2 GETPORT Call MOUNT(100005) V:3 UDP
> 74 0.086324000 192.168.178.21 -> 192.168.178.21 Portmap 70 V2 GETPORT Reply (Call In 73) Port:36479
> 75 0.086409000 192.168.178.21 -> 192.168.178.21 MOUNT 82 V3 NULL Call
> 76 0.086482000 192.168.178.21 -> 192.168.178.21 MOUNT 66 V3 NULL Reply (Call In 75)
> 77 0.086803000 192.168.178.21 -> 192.168.178.21 MOUNT 82 V3 NULL Call
> 78 0.086871000 192.168.178.21 -> 192.168.178.21 MOUNT 66 V3 NULL Reply (Call In 77)
> 79 0.086915000 192.168.178.21 -> 192.168.178.21 MOUNT 174 V3 MNT Call /mnt/ramdisk
> 80 0.088420000 192.168.178.21 -> 192.168.178.21 MOUNT 90 V3 MNT Reply (Call In 79)
> 81 0.088718000 192.168.178.21 -> 192.168.178.21 TCP 74 56459 â sunrpc [SYN] Seq=0 Win=43690 Len=0
> 82 0.088733000 192.168.178.21 -> 192.168.178.21 TCP 74 sunrpc â 56459 [SYN, ACK] Seq=0 Ack=1 Win=43690 Len=0
> 83 0.088750000 192.168.178.21 -> 192.168.178.21 TCP 66 56459 â sunrpc [ACK] Seq=1 Ack=1 Win=342 Len=0
> 84 0.088776000 192.168.178.21 -> 192.168.178.21 Portmap 150 V2 GETPORT Call NFS(100003) V:3 TCP
> 85 0.088783000 192.168.178.21 -> 192.168.178.21 TCP 66 sunrpc â 56459 [ACK] Seq=1 Ack=85 Win=342 Len=0
> 86 0.088934000 192.168.178.21 -> 192.168.178.21 Portmap 98 V2 GETPORT Reply (Call In 84) Port:2049
> 87 0.088944000 192.168.178.21 -> 192.168.178.21 TCP 66 56459 â sunrpc [ACK] Seq=85 Ack=33 Win=342 Len=0
> 88 0.088989000 192.168.178.21 -> 192.168.178.21 TCP 66 56459 â sunrpc [FIN, ACK] Seq=85 Ack=33 Win=342 Len=0
> 89 0.089028000 192.168.178.21 -> 192.168.178.21 TCP 66 sunrpc â 56459 [FIN, ACK] Seq=33 Ack=86 Win=342 Len=0
> 90 0.089036000 192.168.178.21 -> 192.168.178.21 TCP 66 56459 â sunrpc [ACK] Seq=86 Ack=34 Win=342 Len=0
> 91 0.089189000 192.168.178.21 -> 192.168.178.21 TCP 74 957 â nfs [SYN] Seq=0 Win=43690 Len=0
> 92 0.089201000 192.168.178.21 -> 192.168.178.21 TCP 74 nfs â 957 [SYN, ACK] Seq=0 Ack=1 Win=65535 Len=0
> 93 0.089213000 192.168.178.21 -> 192.168.178.21 TCP 66 957 â nfs [ACK] Seq=1 Ack=1 Win=342 Len=0
> 94 0.089269000 192.168.178.21 -> 192.168.178.21 NFS 110 V3 NULL Call
> 95 0.089277000 192.168.178.21 -> 192.168.178.21 TCP 66 nfs â 957 [ACK] Seq=1 Ack=45 Win=1024 Len=0
> 96 0.089318000 192.168.178.21 -> 192.168.178.21 NFS 94 V3 NULL Reply (Call In 94)
> 97 0.089325000 192.168.178.21 -> 192.168.178.21 TCP 66 957 â nfs [ACK] Seq=45 Ack=29 Win=342 Len=0
> 98 0.089492000 192.168.178.21 -> 192.168.178.21 NFS 198 V3 FSINFO Call, FH: 0x62d40c52
> 99 0.089537000 192.168.178.21 -> 192.168.178.21 NFS 150 V3 FSINFO Reply (Call In 98)
> 100 0.089574000 192.168.178.21 -> 192.168.178.21 NFS 198 V3 PATHCONF Call, FH: 0x62d40c52
> 101 0.089607000 192.168.178.21 -> 192.168.178.21 NFS 126 V3 PATHCONF Reply (Call In 100)
> 102 0.089638000 192.168.178.21 -> 192.168.178.21 NFS 198 V3 GETATTR Call, FH: 0x62d40c52
> 103 0.089671000 192.168.178.21 -> 192.168.178.21 NFS 182 V3 GETATTR Reply (Call In 102) Directory mode: 1777 uid: 0 gid: 0
> 104 0.089781000 192.168.178.21 -> 192.168.178.21 NFS 198 V3 FSINFO Call, FH: 0x62d40c52
> 105 0.089820000 192.168.178.21 -> 192.168.178.21 NFS 150 V3 FSINFO Reply (Call In 104)
> 106 0.089856000 192.168.178.21 -> 192.168.178.21 NFS 198 V3 GETATTR Call, FH: 0x62d40c52
> 107 0.089895000 192.168.178.21 -> 192.168.178.21 NFS 182 V3 GETATTR Reply (Call In 106) Directory mode: 1777 uid: 0 gid: 0
> 108 0.093882000 192.168.178.21 -> 192.168.178.21 NFS 210 V3 FSSTAT Call, FH: 0x62d40c52
> 109 0.093925000 192.168.178.21 -> 192.168.178.21 NFS 154 V3 FSSTAT Reply (Call In 108)
> 110 0.103099000 192.168.178.21 -> 192.168.178.21 NFS 210 V3 FSSTAT Call, FH: 0x62d40c52
> 111 0.103256000 192.168.178.21 -> 192.168.178.21 NFS 154 V3 FSSTAT Reply (Call In 110)
> 112 0.143185000 192.168.178.21 -> 192.168.178.21 TCP 66 957 â nfs [ACK] Seq=993 Ack=665 Win=342 Len=0
> 113 0.161139000 192.168.178.21 -> 192.168.178.21 NFS 210 V3 FSSTAT Call, FH: 0x62d40c52
> 114 0.161353000 192.168.178.21 -> 192.168.178.21 NFS 154 V3 FSSTAT Reply (Call In 113)
> 115 0.161381000 192.168.178.21 -> 192.168.178.21 TCP 66 957 â nfs [ACK] Seq=1137 Ack=753 Win=342 Len=0
> 116 2.214247000 192.168.178.21 -> 192.168.178.21 Portmap 98 V2 GETPORT Call MOUNT(100005) V:3 UDP
> 117 2.214390000 192.168.178.21 -> 192.168.178.21 Portmap 70 V2 GETPORT Reply (Call In 116) Port:36479
> 118 2.214489000 192.168.178.21 -> 192.168.178.21 MOUNT 82 V3 NULL Call
> 119 2.214562000 192.168.178.21 -> 192.168.178.21 MOUNT 66 V3 NULL Reply (Call In 118)
> 120 2.214662000 192.168.178.21 -> 192.168.178.21 MOUNT 126 V3 UMNT Call /mnt/ramdisk
> 121 2.214951000 192.168.178.21 -> 192.168.178.21 MOUNT 66 V3 UMNT Reply (Call In 120)
> 122 2.237210000 192.168.178.21 -> 192.168.178.21 TCP 66 957 â nfs [FIN, ACK] Seq=1137 Ack=753 Win=342 Len=0
> 123 2.237278000 192.168.178.21 -> 192.168.178.21 TCP 66 nfs â 957 [FIN, ACK] Seq=753 Ack=1138 Win=1091 Len=0
> 124 2.237288000 192.168.178.21 -> 192.168.178.21 TCP 66 957 â nfs [ACK] Seq=1138 Ack=754 Win=342 Len=0
>
> - --
> MfG/Sincerely
> Toralf FÃrster
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Next message: One Thousand Gnomes: "Re: [PATCH] i2c-designware: Mask interrupts during i2c controller enable"
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In reply to: Toralf FÃrster: "NFS V4 calls for a NFS v3 mount"
Next in thread: Toralf FÃrster: "Re: NFS V4 calls for a NFS v3 mount"
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