linux-kernel - Re: [RFC PATCH 1/2] x86: Fix rbp saving in pt

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Message-Id: <4D2749D6020000780002B0BC@vpn.id2.novell.com>
Date:	Fri, 07 Jan 2011 16:13:58 +0000
From:	"Jan Beulich" <JBeulich@...ell.com>
To:	"Frederic Weisbecker" <fweisbec@...il.com>
Cc:	"H. Peter Anvin" <a.p.zijlstra@...llo.nl>,
	"Ingo Molnar" <mingo@...e.hu>,
	"Stephane Eranian" <eranian@...gle.com>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"Arnaldo Carvalho de Melo" <acme@...hat.com>,
	"Soeren Sandmann Pedersen" <sandmann@...hat.com>,
	"LKML" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH 1/2] x86: Fix rbp saving in pt_regs on irq
	 entry

>>> On 07.01.11 at 17:05, Frederic Weisbecker <fweisbec@...il.com> wrote:
> Once I'll have perf callchain based on CFI ready, we'll perhaps find some 
> issues
> there. Although I guess there are already tools that can make use of that.

Is this to read that you're planning to do a re-spin of the CFI
unwinding code (which I'm not allowed to submit another time,
but which we've been using for years in SuSE distros) then?

Jan

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