Messages in this thread | | | Date | Wed, 07 May 2003 17:54:50 -0400 | From | Timothy Miller <> | Subject | Re: top stack (l)users for 2.5.69 |
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Jesse Pollard wrote: > On Wednesday 07 May 2003 12:13, Jonathan Lundell wrote: > [snip] > >>One thing that would help (aside from separate interrupt stacks) >>would be a guard page below the stack. That wouldn't require any >>physical memory to be reserved, and would provide positive indication >>of stack overflow without significant runtime overhead. > > > It does take up a page table entry, which may also be in short supply
Now, I'm sure this has GOT to be a terribly ignorant question, but I'll try anyhow:
What happens if you simply neglect to provide a mapping for that page? I'm sure that will cause some sort of page fault. Why would you have to do something different?
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