linux-kernel - Re: [GIT PULL] x86/kaslr for v3.14

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Message-ID: <CA+55aFzRJNEt-tOGgj-6OPB0cMW9ReM6y6kzCyR5bfts1de-Jg@mail.gmail.com>
Date:	Tue, 28 Jan 2014 08:51:15 -0800
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Richard Weinberger <richard@....at>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Ingo Molnar <mingo@...nel.org>,
	Kees Cook <keescook@...omium.org>,
	Cong Ding <dinggnu@...il.com>, Ingo Molnar <mingo@...e.hu>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Mathias Krause <minipli@...glemail.com>,
	Michael Davidson <md@...gle.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
Subject: Re: [GIT PULL] x86/kaslr for v3.14

On Tue, Jan 28, 2014 at 8:30 AM, H. Peter Anvin <hpa@...or.com> wrote:
>
> I don't think there is any way to not break anything... we're
> introducing a new kind of object ("normalized kernel pointer") here.

I suspect we could just drop the addresses entirely if we have a
symbolic version. It's not like the hex addresses are all that
interesting, and in commit messages I actually end up editing them out
just because they are worthless noise.

So we could just do "schedule+0x45/0x368" without the actual hex
address in brackets..

               Linus
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