Run out of memory

[david stevenson]

Hi
I am running on a 486 with 4meg ram, and using mtd flash driver and jffs2, and 
I have now run out of ram.
As a very general guide can someone give me an idea how much ram the mtd 
driver and the jffs2 code should use up.
In round figures the kernel is using 2meg code,data,reserved, and free shows 
1700k used 300k free, before I try to run anything.

Some hints of whether this looks normal or odd would be much appreciated.
David