Hello all,

I am in the preliminary stages of porting NetBSD to 88K based VME181. I
am faced with a design decision regarding the location of the u area
(and kernel stack). All the existing ports place the u area on top of
the user addressable area and the u area is user readable. Now, 88K has
separate address spaces for kernel and user and the u area will not
readable by a user process if I place the u in the kernel address
space.  I would like to know of any potential problems because of this
change from other NetBSD ports. The BSD book says that u should be
readble for handling signal delivery but I am unable to understand why
it is necessary.

Any insights greatly appreciated.

thanks,

nivas
......................................................................
Nivas Madhur nivas@urbana.mcd.mot.com Motorola Computer Group
1101 E. University Av Urbana IL 61801 Ma bell (217) 384 8588