Re: [Linux-ia64] switch_stack position

[Keith Owens <kaos@ocs.com.au>]

On Wed, 13 Dec 2000 22:36:46 -0800, 
David Mosberger <davidm@hpl.hp.com> wrote:
>  Keith> One pointer in struct thread, one pointer in switch_stack, ~
>  Keith> 15 instructions (2-3 extra bundles) to set the pointers
>  Keith> during save_switch_stack, load_switch_stack and copy_thread.
>  Keith> Is that too big a change?
>
>It's not the amount of work the change that's involved, it's that the
>change makes no sense whatsoever.  Surely you can find a better
>solution?

I need to look at an arbitrary process and determine its stack state
accurately.  If you can think of an method which does not require
tracking the switch_stack (or current top of stack, it is almost the
same thing) for all processes, let me know.  I looked at this for a
couple of weeks without finding a better solution.