[parisc-linux] Re:[parisc-linux-cvs] linux-2.6 kyle

[John David Anglin]

> > > +       struct pt_regs r2 = *r;
> > 
> > Is this really wise?  pt_regs is *huge* -- 472 bytes on 32-bit and 688
> > bytes on 64-bit.
> > 
> 
> Not so bad when you consider we have 16K stack. IIRC, I committed
> a change to traps.c to not kmalloc but instead put pt_regs on the
> stack. If x86-64 can get by with an 8K stack, I think we're fine
> with a 16K stack on 64bit. (Though I really want 8K or 16K page
> size...)

It might be better to use memcpy.

Dave
-- 
J. David Anglin                                  dave.anglin at nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)