Beta
×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, 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?