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Date:      Wed, 27 Aug 2008 11:19:49 +1000
From:      Andrew Reilly <andrew-freebsd@areilly.bpc-users.org>
To:        Alfred Perlstein <alfred@freebsd.org>
Cc:        freebsd-arch@freebsd.org, Ivan Voras <ivoras@freebsd.org>, Matthew Macy <mat.macy@gmail.com>
Subject:   Re: FreeBSD and DEP aka "NX bit"?
Message-ID:  <20080827011949.GA98242@duncan.reilly.home>
In-Reply-To: <20080826162807.GF16977@elvis.mu.org>
References:  <g8q8i5$s9g$2@ger.gmane.org> <3c1674c90808231713x47e42de5oa9fc2f2f244d2e74@mail.gmail.com> <20080826074943.GB85357@duncan.reilly.home> <20080826162807.GF16977@elvis.mu.org>

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On Tue, Aug 26, 2008 at 09:28:07AM -0700, Alfred Perlstein wrote:
> * Andrew Reilly <andrew-freebsd@areilly.bpc-users.org> [080826 00:51] wrote:
> > I've been using 7-STABLE on amd64 for a long time, and haven't
> > noticed any problems with Java or SBCL lisp or PLT-scheme, all
> > of which use JIT code generation (but probably neither use
> > jemalloc?)
> 
> mprotect(2)?

Fair enough.  Good to know that it's actually tweaking the NX
permissions, I guess.  The man page seems a little vague about
when it might succeed, and what effect it might have...

Cheers,

-- 
Andrew



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