lkml.org 
[lkml]   [2003]   [May]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: top stack (l)users for 2.5.69


    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?

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 13:35    [W:0.019 / U:29.700 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site