reboot command in linux is not working

[Nethra]

hi,
 I m using MPC8272ADS board , u-boot-1.1.6 and linux is 2.6.10 (montavista).

reboot command is not working...what may be the problem?
 
this is the output i m getting after giving reboot command....

root at cashel:~#
root at cashel:~#
root at cashel:~#
root at cashel:~# reboot

Broadcast message from root (console) (Thu Jan  1 00:00:46 1970):

The system is going down for reboot NOW!
INIT: Switching to runlevel: 6
INIT: Sending processes the TERM signal
INIT: Sending processes the KILL signal
Stopping MontaVista target tools daemon: mvltd. Stopping internet
superserver: inetd.
Stopping NFS common utilities: lockd statd.
Stopping portmap daemon: portmap.
Stopping hotplug subsystem:
   pci
   pci      [success]
   usb
   usb      [success]
   isapnp
   isapnp   [success]
   ide
   ide      [success]
   input
   input    [success]
   scsi
   scsi     [success]
done.
Stopping system log daemon: klogd syslogd.
Unmounting /dev...done.
Sending all processes the TERM signal... done.
Sending all processes the KILL signal... done.
Unmounting remote filesystems... done.
Deactivating swap...done.
Unmounting local filesystems...done.
Starting reboot command: reboot
Rebooting...
Restarting system.teMachine check in kernel mode.
Caused by (from SRR1=41000): Transfer error ack signal
Oops: machine check, sig: 7 [#1]
PREEMPT
NIP: FF000104 LR: FF000104 SP: C315DE00 REGS: c315dd50 TRAP: 0200    Not
tainted
MSR: 00041000 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00
TASK = c37560f0[1035] 'reboot' THREAD: c315c000
Last syscall: 54
GPR00: 00001032 C315DE00 C37560F0 00249CA0 FF000104 00001002 0000349C
EFFFFFFF
GPR08: C021E133 C000E7A8 0000C000 00100088 00000001 1001A108 100D4FF8
100C9368
GPR16: FFFFFFFF 00000000 00000000 00000000 00000000 00000001 00000001
00000001
GPR24: 00000000 00000001 00000000 00000000 00000000 00000004 00000000
FF000104
Call trace: [00001032]


thanks in advance,

Nethra
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