Timeout error with NFS over USB
Subsystems (2)
Hi,
I am working on an embedded board running on a StrongARM SA1110 processor.
It has got Linux (kernel 2.4.18 - rmk4) running on it. I am trying to mount a
partition from the native linux machine (running on RedHat 7.3) through NFS
over USB.
I have set up the native linux system as the NFS Server (I have made the
appropriate entries in the /etc/exports and /etc/hosts.allow and /etc/hosts.deny
files). I then mount the folder that has been exported by the NFS Server.
Everything seems to work fine upto here. I have got a couple of issues:
1. When I telnet into the target board, I am able to log in without any issues
and work on the mounted partition. But, every now and then, I get
the
following message on the target board:
NETDEV WATCHDOG: usbf: transmit timed out
On the target board, the binary utilities (like ls, cp, mv, mount) are all part of
busybox (version 0.60.5).
On the native Linux system (NFS Server)
***********************************
/etc/exports reads:
/skiff 1.1.1.1(rw)/home/winnie 1.1.1.1(rw)
(here 1.1.1.1 is the ip address of the target board and 1.1.1.2 is the ip address of the native host)
the output of rpcinfo -p
program vers proto port
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100024 1 udp 1024 status
100024 1 tcp 1024 status
391002 2 tcp 1025 sgi_fam
100005 1 udp 1030 mountd
100005 1 tcp 1136 mountd
100005 2 udp 1030 mountd
100005 2 tcp 1136 mountd
100005 3 udp 1030 mountd
100005 3 tcp 1136 mountd
100003 2 udp 2049 nfs
100003 3 udp 2049 nfs
100021 1 udp 1031 nlockmgr
100021 3 udp 1031 nlockmgr
100021 4 udp 1031 nlockmgr
100001 3 udp 704 rstatd
100001 2 udp 704 rstatd
100001 1 udp 704 rstatd
100011 1 udp 707 rquotad
100011 2 udp 707 rquotad
100011 1 tcp 710 rquotad
100011 2 tcp 710 rquotad/sbin/ifconfig reads:
eth0 Link encap:Ethernet HWaddr 00:50:BA:88:0D:FA
inet addr:192.168.1.130 Bcast:192.168.1.255
Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:36032 errors:0 dropped:0 overruns:0 frame:0 TX packets:26519 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100
RX bytes:13790636 (13.1 Mb) TX bytes:3211478 (3.0 Mb) Interrupt:11
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:281 errors:0 dropped:0 overruns:0 frame:0 TX packets:281 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0
RX bytes:20132 (19.6 Kb) TX bytes:20132 (19.6 Kb)
usb0 Link encap:Ethernet HWaddr 40:4C:55:2A:61:4F
inet addr:1.1.1.2 Bcast:1.255.255.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:245 errors:0 dropped:0 overruns:0 frame:0 TX packets:235 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100
RX bytes:31500 (30.7 Kb) TX bytes:40586 (39.6 Kb)
ls -l /home/ reads:
drwx------ 45 winnie winnie 4096 Jan 16 15:29 winnie
drwxr-xr-x 2 ppp 101 4096 Dec 27 13:17 ppp
On the target board, (nfs is the mount point)
**************************************
before the NFS Mount:
drwxr-xr-x 1 root root 0 Nov 30 01:20 nfs
after the NFS Mount:
drwx------ 45 winnie winnie 4096 Jan 16 2003 nfs
I am not running the portmap daemon on the target board. I have only set up the NFS Server,
turned on NFS capability in the Linux Kernel for the target board and I mount the partition
exported by the NFS Server, using the mount command from busybox.
Has anyone faced this timeout errors before? If it has been, is there a fix?
Thanks in advance,
Kanagesh
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