Subject: Re: Importing PaX features to NetBSD
To: None <,>
From: Thor Lancelot Simon <>
List: tech-security
Date: 12/18/2005 13:25:28
On Sun, Dec 18, 2005 at 12:12:50PM +0200, Elad Efrat wrote:
> ASLR calculates 3 random values on execution and saves these as offsets
> to be used when a random value is needed. How expensive are 3
> arc4random() calls in the context of an entire sys_execve()?

I think you're missing the point.  I've repeatedly asked about the
performance impact of these changes on machines with virtually-addressed
caches -- and AFAICT you haven't responded.

Would you please respond to that question?