On Wed, Sep 07, 2005 at 01:06:32PM -0700, Matthew Dillon wrote: > We are *NEVER* going to support PAE for 32 bit builds. I do intend to > support 32 bit environments with 64 bit kernel builds, though, once > we start the 64 bit kernel work, and W^X will work for those > environments (because even with 32 bit user environments the kernel > page tables will still be in 64 bit mode).
The amount of work necessary for W^X is isolated to the page table handling. I don't mean switching to 64bit address for internal use and the like, therein lays madnes. The latter is what made PAE so unstable in FreeBSD afterall. Joerg
