Hi,

slab.c is not very efficient for passing objects between cpu. Usually 
this is a rare event, but with network routing and cpu bound interrupt 
handlers, it's possible that all alloc operations happen on one cpu, and 
all free operations on another cpu.

The attached patch solves that by adding a shared array for fast object 
transfer.

What do you think? The patch is against 2.5.69-bk12, it's already 
included in 2.5.69-mm6.

--
    Manfred