[lkdump-develop] "cat /proc/diskdump" command does not show registered device

[rahul K. <rah...@ya...>]

I am working on 64 bit redhat AS 4 update 3.  I installed diskdumputils-1.2.8 package on my machine.
   
  I configured diskdump on my machine. 
  ================================================
  $ cat /etc/sysconfig/diskdump
DEVICE=/dev/sdam2
   
  I executed folowing commands
================================================
  $ service diskdump initialformat
Formatting dump device:
Do you want to format /dev/sdam2 (yes/NO)? yes
/dev/sdam2: [100.0%]

  $ service diskdump start
Starting diskdump:                                                            [  OK  ]

   
  $ dmesg -c
disk_dump: Maximum block size: 16384
disk_dump: total blocks required: 1048433 (header 3 + bitmap 38 + memory 1048392)

  $ tail -f /var/log/messages
May  6 14:31:14  kernel: disk_dump: Maximum block size: 16384
May  6 14:31:14  kernel: disk_dump: total blocks required: 1048433 (header 3 + bitmap 38 + memory 1048392)
May  6 14:31:15 diskdump: activating succeeded

  $ cat /proc/diskdump
# sample_rate: 8
# block_order: 2
# fallback_on_err: 1
# allow_risky_dumps: 1
# dump_level: 0
# compress: 0
# total_blocks: 1048433
#
================================================
   
  Why  "cat /proc/diskdump" command does not show registered device? 
   
  I tried to test diskdump functionality by executing "echo c > /proc/sysrq-trigger "  command. 
   
  After reboot I execute "savecore /dev/sdam2" command. But it is not successful as dump has not taken on the device.
   
  How to solve this problem? 

       
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