×

Announcing: Slashdot Deals - Explore geek apps, games, gadgets and more. (what is this?)

Thank you!

We are sorry to see you leave - Beta is different and we value the time you took to try it out. Before you decide to go, please take a look at some value-adds for Beta and learn more about it. Thank you for reading Slashdot, and for making the site better!

Comments

top

Microsoft Drops Next-Generation Security Project [updated]

carsont Re:Microsoft does what it does best (385 comments)

IANACPUExpert, but my understanding is that x86 has had a distinction between code and data pages since at least the 80386.

Neither am I, but I believe that the old feature in the 386 only allows you to mark very large segments of memory non-executable.

SPARC, PA-RISC, Alpha, and presumably the new x86 chips with "NX" allow you to do this to individual pages.

I'm surprised *BSD (particularly) FreeBSD hasn't.

OpenBSD does. They call it W^X. It was enabled on the sparc, sparc64, hppa, and alpha ports in 3.3 and on the i386 and macppc ports in 3.4.

more than 10 years ago

Submissions

carsont hasn't submitted any stories.

Journals

carsont has no journal entries.

Slashdot Login

Need an Account?

Forgot your password?