Messages in this thread | ![/](/images/icornerl.gif) | | Date | Fri, 25 Apr 2003 16:15:42 -0700 | From | "H. Peter Anvin" <> | Subject | Re: TASK_UNMAPPED_BASE & stack location |
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Martin J. Bligh wrote: >>>128Mb of it? The bottom page, or even a few Mb, sure ... >>>but 128Mb seems somewhat excessive .. >>> >>> >> >>Considering that your process space is 4gig, and that that 128Mb doesn't >>really exist anywhere (no RAM, no page table entries, nothing), it's >>really not excessive. > > > I need the virtual space. >
As far as I know, you're perfectly free to move the stack whereever you feel like, as long as you map the space first, copy the contents and set %esp. mremap() is useful for this.
-hpa
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