The following reply was made to PR misc/34557; it has been noted by GNATS.

From: Thomas Lecomte <deather.dede@gmail.com>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: misc/34557: Problem with NetBSD-3 as a NFSv3 server with ext2fs
Date: Tue, 19 Sep 2006 16:44:08 +0200

 Christos Zoulas wrote:
 > The following reply was made to PR misc/34557; it has been noted by GNATS.
 > 
 > From: christos@zoulas.com (Christos Zoulas)
 > To: gnats-bugs@NetBSD.org, misc-bug-people@netbsd.org,
 > 	gnats-admin@netbsd.org, netbsd-bugs@netbsd.org
 > Cc: 
 > Subject: Re: misc/34557: Problem with NetBSD-3 as a NFSv3 server with ext2fs
 > Date: Tue, 19 Sep 2006 09:26:36 -0400
 > 
 >  On Sep 19, 12:45pm, deather.dede@gmail.com (deather.dede@gmail.com) wrote:
 >  -- Subject: misc/34557: Problem with NetBSD-3 as a NFSv3 server with ext2fs
 >  
 >  | >Number:         34557
 >  | >Category:       misc
 >  | >Synopsis:       Problem with NetBSD-3 as a NFSv3 server with ext2fs
 >  | >Confidential:   no
 >  | >Severity:       serious
 >  | >Priority:       medium
 >  | >Responsible:    misc-bug-people
 >  | >State:          open
 >  | >Class:          sw-bug
 >  | >Submitter-Id:   net
 >  | >Arrival-Date:   Tue Sep 19 12:45:00 +0000 2006
 >  | >Originator:     Thomas Lecomte
 >  | >Release:        3.0
 >  | >Organization:
 >  | N/A
 >  | >Environment:
 >  | NetBSD barney.hinyx.info 3.0 NetBSD 3.0 (GENERIC) #0: Mon Dec 19 01:04:02 UTC 2005  builds@works.netbsd.org:/home/builds/ab/netbsd-3-0-RELEASE/i386/200512182024Z-obj/home/builds/ab/netbsd-3-0-RELEASE/src/sys/arch/i386/compile/GENERIC i386
 >  | >Description:
 >  | I export an ext2fs partition using NFS.
 >  | When I mount it on a Solaris box, it works using either NFSv2 and NFSv3.
 >  | However, when mounting it on a Linux box, NFSv3 doesn't work.
 >  | 
 >  | root@babe:~# mount -t nfs -o nfsvers=3 barney:/big /big
 >  | root@babe:~# ls /big
 >  | ls: reading directory /big: Input/output error
 >  | root@babe:~# umount /big
 >  | root@babe:~# mount -t nfs -o nfsvers=2 barney:/big /big
 >  | root@babe:~# ls /big
 >  | [Directory listing comes here]
 >  | 
 >  | Same problem when using an  SCO OpenServer client, but here with both NFSv2 and NFSv3:
 >  | 
 >  | bart#truss ls /big 2>&1 | grep EIO
 >  | getdents(3, 0x08329B70, 2048)                   Err#5  EIO
 >  | 
 >  | (have to use truss because  `ls' doesn't print out any error message)
 >  | 
 >  | Here's the tcpdump output when running `ls' on /big with NFSv3 under Linux:
 >  | 
 >  | 08:35:47.552875 IP (tos 0x0, ttl  64, id 54812, offset 0, flags [DF], proto: TCP (6), length: 52) babe.hinyx.info.1023 > barney.hinyx.info.nfs: ., cksum 0x53a5 (correct), 2156:2156(0) ack 1685 win 1728 <nop,nop,timestamp 16794340 72>
 >  | 
 >  | 08:35:57.296691 IP (tos 0x0, ttl  64, id 54813, offset 0, flags [DF], proto: TCP (6), length: 196) babe.hinyx.info.4274594373 > barney.hinyx.info.nfs: 144 getattr [|nfs]
 >  | 
 >  | 08:35:57.296877 IP (tos 0x0, ttl  64, id 10228, offset 0, flags [DF], proto: TCP (6), length: 168) barney.hinyx.info.nfs > babe.hinyx.info.4274594373: reply ok 116 getattr [|nfs]
 >  | 
 >  | [stops here]
 >  | 
 >  | Here's the uname -a output of the Linux box:
 >  | # uname -a
 >  | Linux babe 2.6.15-26-sparc64 #1 Thu Aug 3 02:59:18 UTC 2006 sparc64 GNU/Linux
 >  | 
 >  | It's an Ubuntu Server 6.06.1.
 >  | 
 >  | And by the way, if I suspect ext2fs, it's because the NetBSD machine exports an ffs NFS share as well, which works perfectly using NFSv3 on Linux and SCO boxes.
 >  | >How-To-Repeat:
 >  | Simply export an ext2fs partition using NFS and mount it with NFSv3 on a Linux box.
 >  | >Fix:
 >  | Using NFSv2 could be a workaround for Linuxes box.
 >  | Didn't found a fix for SCO OpenServer.
 >  
 >  what does rpcinfo -p say on the linux box?
 >  
 >  christos
 >  
 > 
 
 Christos -
 
 Here's the rpcinfo -p output:
 
 babe>rpcinfo -p
     program vers proto   port
      100000    2   tcp    111  portmapper
      100000    2   udp    111  portmapper
      100021    1   udp   1024  nlockmgr
      100021    3   udp   1024  nlockmgr
      100021    4   udp   1024  nlockmgr
      100021    1   tcp   3626  nlockmgr
      100021    3   tcp   3626  nlockmgr
      100021    4   tcp   3626  nlockmgr
      100007    2   udp    890  ypbind
      100007    1   udp    890  ypbind
      100007    2   tcp    893  ypbind
      100007    1   tcp    893  ypbind
 
 And against the NetBSD box:
 
 babe>rpcinfo -p barney
     program vers proto   port
      100000    4   tcp    111  portmapper
      100000    3   tcp    111  portmapper
      100000    2   tcp    111  portmapper
      100000    4   udp    111  portmapper
      100000    3   udp    111  portmapper
      100000    2   udp    111  portmapper
      100000    4     0    111  portmapper
      100000    3     0    111  portmapper
      100000    2     0    111  portmapper
      100007    2   udp   1020  ypbind
      100007    2   tcp   1022  ypbind
      100003    2   udp   2049  nfs
      100003    3   udp   2049  nfs
      100005    1   udp    963  mountd
      100005    3   udp    963  mountd
      100005    1   tcp   1021  mountd
      100003    2   tcp   2049  nfs
      100005    3   tcp   1021  mountd
      100003    3   tcp   2049  nfs
      100024    1   udp    960  status
      100024    1   tcp   1018  status
      100021    0   udp    959  nlockmgr
      100021    1   udp    959  nlockmgr
      100021    3   udp    959  nlockmgr
      100021    4   udp    959  nlockmgr
      100021    0   tcp   1017  nlockmgr
      100021    1   tcp   1017  nlockmgr
      100021    3   tcp   1017  nlockmgr
      100021    4   tcp   1017  nlockmgr
 
 Hope this helps,
 
 Thomas
 
 -- 
 Thomas Lecomte    deather.dede@gmail.com    Solaris User & Developer
 http://blog.hinyx.info - http://guses.org - http://www.sunwizard.net