Pengutronics BSP - High CPU usage !!

Hi,

I just ported Pengutronics BSP and try to change /etc/issue file for
banner, but the problem is while rebooting the system it takes time, As you
 can see below 90% cpu used by some 'sync_supers' command, and rest by
jffs2.


   99 root      20   0     0    0    0 R 90.7  0.0   1:09.07 sync_supers   
    
  272 root      30  10     0    0    0 D  8.2  0.0   0:16.45 jffs2_gcd_mtd3


what could be the reason of taking high cpu usage If I try to modify some
file. 
I am trying to port a project which is wring a file to the memory, If Above
is the situation then I will need proper solution for the same.

Please let me know further.

Are you running from NAND, MMC or NFS?

After a fresh flashing of the NAND flash, the JFFS2 filesystem first
"examines" the whole NAND memory. Give your Mini2440 a few minutes when you
boot it the first time after flashing it and JFFS2 can do its job and will
stop. The next time you boot your Mini2440 this will not happen again,
until you re-flash it again. Or it will happen again and again, if you
re-boot your machine too early and JFFS2 has to start the exmination again
and again.