netdev - NFS on little-endian platform

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Message-ID: <4D5BCC74.9010301@monstr.eu>
Date:	Wed, 16 Feb 2011 14:09:08 +0100
From:	Michal Simek <monstr@...str.eu>
To:	netdev@...r.kernel.org
CC:	David Miller <davem@...emloft.net>
Subject: NFS on little-endian platform - Microblaze

Hi All,

I am trying to understand one problem which we have found.
The problem is that I can't on Microblaze little-endian platform
mount nfs without -o nolock options. (Log below)
Selecting tcp or udp has no effect.
I am using emaclite driver and there is no problem on big endian microblaze.

ping, telnet, http, ftp, iperf, netperf work well.

That's why I have a question if there is any endian specific option for NFS?

Thanks,
Michal

~ # mount -t nfs 192.168.0.101:/tftpboot/nfs /mnt
svc: failed to register lockdv1 RPC service (errno 13).
lockd_up: makesock failed, error=-13
svc: failed to register lockdv1 RPC service (errno 13).
~ # mount -t nfs -o nolock 192.168.0.101:/tftpboot/nfs /mnt
~ # mount
rootfs on / type rootfs (rw)
proc on /proc type proc (rw,relatime)
none on /var type ramfs (rw,relatime)
none on /sys type sysfs (rw,relatime)
none on /etc/config type ramfs (rw,relatime)
none on /dev/pts type devpts (rw,relatime,mode=600)
192.168.0.101:/tftpboot/nfs on /mnt type nfs 
(rw,relatime,vers=3,rsize=32768,wsize=32768,namlen=255,hard,nolock,proto=udp,port=65535,timeo=7,retrans=3,sec=sys,local_lock=all,addr=192.168.0.101)
~ #
~ # ps
PID   USER     TIME   COMMAND
     1 root       0:02 init
     2 root       0:00 [kthreadd]
     3 root       0:00 [ksoftirqd/0]
     4 root       0:00 [kworker/0:0]
     5 root       0:00 [kworker/u:0]
     6 root       0:00 [khelper]
     7 root       0:00 [sync_supers]
     8 root       0:00 [bdi-default]
     9 root       0:00 [kblockd]
    10 root       0:00 [rpciod]
    11 root       0:00 [kworker/0:1]
    12 root       0:00 [kswapd0]
    13 root       0:00 [fsnotify_mark]
    14 root       0:00 [aio]
    15 root       0:00 [nfsiod]
    16 root       0:00 [kworker/u:1]
    58 root       0:00 udhcpc -R -n -p /var/run/udhcpc.eth0.pid -i eth0
    62 1          0:00 /bin/portmap
    64 root       0:00 /bin/inetd /etc/inetd.conf
    65 root       0:01 -sh
    66 root       0:00 /bin/syslogd -n
    67 root       0:00 /bin/flatfsd
    68 root       0:00 [kworker/0:2]
    91 root       0:00 ps
~ # cat /proc/cpuinfo
CPU-Family:     MicroBlaze
FPGA-Arch:      spartan6
CPU-Ver:        8.00.a, little endian
CPU-MHz:        50.00
BogoMips:       24.06
HW:
  Shift:         yes
  MSR:           yes
  PCMP:          yes
  DIV:           yes
  MMU:           3
  MUL:           v2
  FPU:           no
  Exc:           op0x0 unal ill iopb dopb zero
Icache:         16kB    line length:    32B
Dcache:         16kB    line length:    16B
                 write-through
HW-Debug:       yes
PVR-USR1:       00
PVR-USR2:       00000000
Page size:      4096
~ #



-- 
Michal Simek, Ing. (M.Eng)
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel 2.6 Microblaze Linux - http://www.monstr.eu/fdt/
Microblaze U-BOOT custodian
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