Memory: 880608K/983040K .... 36896K reserved ?

[Joakim Tjernlund]

I cannot figure out how the xxxK reserved item works in:
 Memory: 880608K/983040K available (9532K kernel code, 1104K rwdata, 3348K 
rodata, 1088K init, 1201K bss, 36896K reserved ...

Is there a way to tune(lower it) this memory?

 Jocke