On Wed, 27 Dec 1995, J.T. Conklin wrote:

> It seems that the ss_sp field of the struct sigaltstack was changed to
> ss_base.  I was made aware of this when PR #1784, which complains that
> the code did not match the documentation, was submitted.

As you pointed out, ss_sp is the common usage.  In the absence of any 
overwhelming argument to leave it the way it is now, I'd encourage the 
change back as you suggest.

--scott