linux-kernel - Re: [ANNOUNCE] mdb: Merkey's Linux Kernel Debugger 2.6.27-rc4 released

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Message-ID: <alpine.LFD.1.10.0808211415410.3487@nehalem.linux-foundation.org>
Date:	Thu, 21 Aug 2008 14:18:27 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
cc:	Nick Piggin <nickpiggin@...oo.com.au>,
	jmerkey@...fmountaingroup.com,
	Stefan Richter <stefanr@...6.in-berlin.de>,
	paulmck@...ux.vnet.ibm.com, Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org, David Howells <dhowells@...hat.com>
Subject: Re: [ANNOUNCE] mdb: Merkey's Linux Kernel Debugger  2.6.27-rc4
 released



On Thu, 21 Aug 2008, Jeremy Fitzhardinge wrote:
>
> "asm volatile" also has no effect on the ordering of the asm with 
> respect to other code; you must use constraints to do that.

Well, the gcc docs at _used_ to say that volatile asms are not moved 
around "significantly". They've removed that.

			Linus
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