Description of problem:
Fedora release 6.93 (Rawhide)

Issue is with the kernel versions above 2.6.21-1.3116. 

ksoftirqd/0 will use 99% of system resources, i have gone through few posts and
found that it may be related with iwlwifi, I am using D620 dell laptop
== 
0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network
Connection (rev 02)
==

Currently i am not using wifi, a normal cable is attached but still the cup
consumption is high. I tried to remove it module which took 100% of cpu and than
locked up the box.

I have gone through many posts regarding this. I know that there are some issue
with this card, which are fixed with 2.6.21-1.3167 but those are related with
connectivity and not the cpu consumption( average load increase due to this).
There are many newer kernel available i due to load issue i am not able to use
those. Currently using 2.6.21-1.3116.

Any plans on this ?