linux-kernel - Re: [PATCH v2] x86, kaslr: export offset in VMCOREINFO ELF notes

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Message-ID: <CAKB9nXucRwn78+pw1oRQ_jP_kQJuOaUzPyiH0JE5Sv9utkK1ww@mail.gmail.com>
Date:	Mon, 27 Jan 2014 10:41:14 -0800
From:	Andrew Honig <ahonig@...gle.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Adrian Hunter <adrian.hunter@...el.com>,
	Ingo Molnar <mingo@...nel.org>,
	Kees Cook <keescook@...omium.org>,
	linux-kernel@...r.kernel.org, Dave Anderson <anderson@...hat.com>,
	Eugene Surovegin <surovegin@...gle.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Yinghai Lu <yinghai@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Namhyung Kim <namhyung@...nel.org>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...hat.com>
Subject: Re: [PATCH v2] x86, kaslr: export offset in VMCOREINFO ELF notes

The purpose of this patch to make it easier for processing offline
kdump files for crash analysis.  For context on the see this thread
for a patch in progress
(http://www.mail-archive.com/crash-utility@redhat.com/msg04640.html)

_stext doesn't quite work for this purpose because in my testing it
doesn't exactly match the kaslr offset, for some reason _stext is a
few hundred bytes after the kaslr offset.  The number doesn't appear
consistent and I would prefer not to take a dependency on that.

On Mon, Jan 27, 2014 at 8:22 AM, Peter Zijlstra <peterz@...radead.org> wrote:
>
>
> Do _NOT_ cross post to moderated lists!!
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