[c-nsp] %SYS-2-INTSCHED: 'suspend' at level 3 -Process= "IP NAT Ager"

[Jimmy Halim]

Hi guys,
 
I am encountering crashes on Cisco 2811 router running IOS version 12.4(18b)
with the following errors:
 
%SYS-2-INTSCHED: 'suspend' at level 3 -Process= "IP NAT Ager"
 
I have checked from website that it is probably due to Cisco Bug CSCed28542
which doesn't have workaround except upgrade.
However I notice that 12.4(18b) is not inside the affected list.
 
Do you guys have any comment on this? Any idea on the workaround?
 
Many Thanks,
Jimmy