Unable to mount root file system-NFS

[Ravindra]

Hi ,

I am unable to mount the root file system, please find the boot agrs and 
kernel boot messages.
Can anybody give me solution on this.I am using the Uboot. I am loading 
the kernel through NFS.

set bootargs root=/dev/nfs rw nfsroot=172.16.5.61:/tftpboot/usr 
ip=172.16.5.150:172.16.5.61 console=ttySA1, 115200
 

NORMANDY # bootm 31000000
## Booting image at 31000000 ...
  Image Name:   FreeBSD
  Created:      2010-07-22   2:08:04 UTC
  Image Type:   ARM Unknown OS Kernel Image (uncompressed)
  Data Size:    7687685 Bytes =  7.3 MB
  Load Address: 30408000
  Entry Point:  304080e0
  Verifying Checksum ... OK
OK

Starting kernel ...

KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2010 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
       The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 9.0-CURRENT #39: Thu Jul 22 19:26:40 UTC 2010
   
root at freebsd.ges.com:/usr/obj/arm.arm/usr/home/user/project/head/sys/LN2410SBC 
arm
WARNING: WITNESS option enabled, expect reduced performance.
CPU: ARM920T rev 0 (ARM9TDMI core)
 DC enabled IC enabled WB enabled LABT
 16KB/32B 64-way Instruction cache
 16KB/32B 64-way write-back-locking-A Data cache
real memory  = 67108864 (64 MB)
avail memory = 52047872 (49 MB)
s3c24x00 on motherboard
s3c24x00: Found S3C2410A CPU (Chip ID: 0x32410002)
s3c24x00: fclk 202 MHz hclk 101 MHz pclk 50 MHz
timer0: <s3c24x0 timer> on s3c24x00
ohci0: <S3C24x0 integrated OHCI controller> on s3c24x00
ohci0: [ITHREAD]
usbus0 on ohci0
uart0: <s3c2410 class> on s3c24x00
uart0: [FILTER]
uart1: <s3c2410 class> on s3c24x00
uart1: [FILTER]
uart1: console (115200,n,8,1)
uart2: <s3c2410 class> on s3c24x00
uart2: [FILTER]
clock: hz=100 PCLK=50700000 prescaler=2 tc=15843
timer0: [FILTER]
Timecounter "s3c24x0 timer" frequency 1584375 Hz quality 1000
Timecounters tick every 10.000 msec
usbus0: 12Mbps Full Speed USB v1.0
ugen0.1: <Samsung> at usbus0
uhub0: <Samsung OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0
panic: bootpc_init: no eligible interfaces
KDB: enter: panic
[ thread pid 0 tid 100000 ]
Stopped at      kdb_enter+0x44: ldrb    r15, [r15, r15, ror r15]!
db>