From: "H. Peter Anvin" <hpa@zytor.com>
To: Linus Torvalds <torvalds@linux-foundation.org>,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Cong Ding <dinggnu@gmail.com>,
"H. Peter Anvin" <hpa@linux.intel.com>,
Ingo Molnar <mingo@elte.hu>, Ingo Molnar <mingo@kernel.org>,
Kees Cook <keescook@chromium.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Mathias Krause <minipli@googlemail.com>,
Michael Davidson <md@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Subject: Re: [GIT PULL] x86/kaslr for v3.14
Date: Mon, 20 Jan 2014 15:13:33 -0800 [thread overview]
Message-ID: <52DDAD9D.9030504@zytor.com> (raw)
In-Reply-To: <CA+55aFyaf2B4Fo-dCJUJ=03aPVdLF7r4uMYNduYPMFwJQYngcA@mail.gmail.com>
On 01/20/2014 03:12 PM, Linus Torvalds wrote:
> On Mon, Jan 20, 2014 at 2:54 PM, Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
>> So I pulled this, but one question:
>
> .. oh, and since I decided to test it, and was looking for problems:
> enabling kaslr breaks "perf". The *profile* looks fine, but the
> disassembly doesn't work.
>
> I'm not entirely surprised. I decided I wanted to test it for a
> reason, after all. So it's not unexpected, but perhaps people hadn't
> thought about it, and clearly hadn't tested it.
>
> Kernel modules disassemble fine, so clearly perf knows about code that
> moves around, but apparently it gets surprised when the core vmlinux
> file disassembly doesn't match addresses.
>
So this is presumably something that needs to be fixed in perf?
-hpa
next prev parent reply other threads:[~2014-01-20 23:14 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-20 16:47 [GIT PULL] x86/kaslr for v3.14 H. Peter Anvin
2014-01-20 22:54 ` Linus Torvalds
2014-01-20 23:00 ` H. Peter Anvin
2014-01-20 23:12 ` Linus Torvalds
2014-01-20 23:13 ` H. Peter Anvin [this message]
2014-01-21 9:00 ` Peter Zijlstra
2014-01-21 14:20 ` H. Peter Anvin
2014-01-21 14:39 ` Ingo Molnar
2014-01-21 14:51 ` H. Peter Anvin
2014-01-21 14:56 ` Ingo Molnar
2014-01-21 18:37 ` Kees Cook
2014-01-21 10:27 ` Ingo Molnar
2014-01-21 13:55 ` H. Peter Anvin
2014-01-21 14:03 ` Ingo Molnar
2014-01-21 14:05 ` H. Peter Anvin
2014-01-21 14:14 ` Ingo Molnar
2014-01-21 14:17 ` H. Peter Anvin
2014-01-21 5:18 ` Kees Cook
2014-01-23 9:39 ` Pavel Machek
2014-01-26 10:16 ` Richard Weinberger
2014-01-27 5:33 ` H. Peter Anvin
2014-01-27 6:49 ` Richard Weinberger
2014-01-27 6:51 ` H. Peter Anvin
2014-01-27 7:38 ` Ingo Molnar
2014-01-27 7:43 ` Ingo Molnar
2014-01-27 7:59 ` Richard Weinberger
2014-01-30 22:07 ` Vivek Goyal
2014-01-31 16:57 ` Kees Cook
2014-02-07 14:49 ` Vivek Goyal
2014-02-07 16:04 ` H. Peter Anvin
2014-02-07 16:24 ` Vivek Goyal
2014-02-07 23:16 ` Dave Young
2014-02-07 23:20 ` H. Peter Anvin
2014-02-07 23:28 ` Dave Young
2014-02-07 19:07 ` H. Peter Anvin
2014-02-07 19:44 ` Kees Cook
2014-01-27 6:52 ` H. Peter Anvin
2014-01-27 7:34 ` Richard Weinberger
2014-01-27 17:05 ` Kees Cook
2014-01-27 17:20 ` Richard Weinberger
2014-01-27 17:24 ` Kees Cook
2014-01-28 6:28 ` Ingo Molnar
2014-01-28 8:25 ` Richard Weinberger
2014-01-28 15:55 ` H. Peter Anvin
2014-01-28 16:25 ` Richard Weinberger
2014-01-28 16:30 ` H. Peter Anvin
2014-01-28 16:51 ` Linus Torvalds
2014-01-28 17:05 ` Ingo Molnar
2014-01-28 17:12 ` Linus Torvalds
2014-01-28 17:24 ` Richard Weinberger
2014-01-28 17:35 ` Linus Torvalds
2014-01-28 17:52 ` Richard Weinberger
2014-01-28 17:56 ` Linus Torvalds
2014-01-28 18:54 ` Richard Weinberger
2014-01-28 19:48 ` Ingo Molnar
2014-01-28 20:07 ` Linus Torvalds
2014-01-28 20:15 ` Borislav Petkov
2014-01-28 20:25 ` Linus Torvalds
2014-01-28 20:28 ` Richard Weinberger
2014-01-28 20:38 ` H. Peter Anvin
2014-01-29 8:25 ` Ingo Molnar
2014-01-29 10:40 ` Borislav Petkov
2014-01-28 20:49 ` Borislav Petkov
2014-01-28 23:37 ` Borislav Petkov
2014-01-28 21:08 ` Dave Jones
2014-01-29 6:36 ` Mike Galbraith
2014-01-29 8:11 ` Ingo Molnar
2014-01-29 8:27 ` Mathias Krause
2014-01-30 9:23 ` Ingo Molnar
2014-01-30 18:15 ` Linus Torvalds
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