At 8:45 AM -0700 2001-05-25, dean gaudet wrote:
>i think it really depends on how you use current -- here's an alternative
>usage which can fold the extra addition into the structure offset
>calculations, and moves the task struct to the top of the stack.
>
>not that this really solves anything, 'cause a stack underflow will just
>trash something else rather than the task struct :)
It would open the door for putting a guard page (which only occupies
virtual space, after all) below the stack. I have no idea whether
that's practical, given other constraints, but it's a potential
benefit of having the stack at the bottom rather than the top of a
page.
--
/Jonathan Lundell.
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