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    SubjectRe: [announce] [patch] NX (No eXecute) support for x86, 2.6.7-rc2-bk2
    On Thursday 03 June 2004 05:44, Ingo Molnar wrote:
    > * Ingo Molnar <> wrote:
    > > > And do we have some way of on a per-process basis say "avoid NX
    > > > because this old version of Oracle/flash/whatever-binary-thing doesn't
    > > > run with it"?
    > [...]
    > > 2) via a runtime method: via the i386 personality. So an application can
    > > trigger the 'legacy' Linux VM layout by e.g doing 'i386 java
    > > ./test.class'.
    > >
    > > this is a hack in Fedora - we wanted to have a finegrained runtime
    > > mechanism just in case. But it would be nice to have this upstream too -
    > > e.g. via a PERSONALITY_3G?
    > i've attached a patch that provides a cleaner solution. It does 3
    > changes:
    > - it adds a ADDR_SPACE_EXECUTABLE bit to the personality 'bug bits'
    > section. This bit if set will make the stack executable. (if in the
    > future we decide to make the malloc() heap non-exec [which i definitely
    > think we should], that property will also listen to this bit.)


    What do you mean by "in the future"? on x86, with the current no execute
    patch, malloc() will be non-exec

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