linux-kernel - Re: [PATCH 4/5] x86: Allow nesting of the debug stack IDT setting

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Message-ID: <4FC7D6EC.3000904@zytor.com>
Date:	Thu, 31 May 2012 13:39:08 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Dave Jones <davej@...hat.com>, Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 4/5] x86: Allow nesting of the debug stack IDT setting

On 05/31/2012 01:35 PM, Steven Rostedt wrote:
> 
> Thus only the debug stack does the stack TSS trick.
> 
> Is this what you were looking for? (God, it just shows how much time
> I've been spending on this crap, as I was able to find all this by
> memory and not grepping for it :-p )
> 

That's why I asked instead of pulled it up myself.

However, what is missing is what the permitted transitions are.  This
affects the options.

	-hpa

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