linux-kernel - Re: [PATCH] x86: Enable full randomization on i386 and X86

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Message-ID: <56E1DEE6.5040306@linux.intel.com>
Date:	Thu, 10 Mar 2016 12:53:58 -0800
From:	Arjan van de Ven <arjan@...ux.intel.com>
To:	Kees Cook <keescook@...omium.org>,
	Hector Marco-Gisbert <hecmargi@....es>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"x86@...nel.org" <x86@...nel.org>,
	Ismael Ripoll Ripoll <iripoll@....es>,
	Harvey Harrison <harvey.harrison@...il.com>
Subject: Re: [PATCH] x86: Enable full randomization on i386 and X86_32.

> Arjan, or other folks, can you remember why x86_32 disabled mmap
> randomization here? There doesn't seem to be a good reason for it that
> I see.

for unlimited stack it got really messy with threaded apps.

anyway, I don't mind seeing if this will indeed work, with time running out
where 32 bit is going extinct... in a few years we just won't have enough
testing on this kind of change anymore.