linux-kernel - Re: [RFC][PATCH 0/5] arch: atomic rework

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20140218194034.GT4250@linux.vnet.ibm.com>
Date:	Tue, 18 Feb 2014 11:40:34 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Torvald Riegel <triegel@...hat.com>,
	Will Deacon <will.deacon@....com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ramana Radhakrishnan <Ramana.Radhakrishnan@....com>,
	David Howells <dhowells@...hat.com>,
	"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"mingo@...nel.org" <mingo@...nel.org>,
	"gcc@....gnu.org" <gcc@....gnu.org>
Subject: Re: [RFC][PATCH 0/5] arch: atomic rework

On Tue, Feb 18, 2014 at 09:44:48AM -0800, Linus Torvalds wrote:
> On Tue, Feb 18, 2014 at 8:17 AM, Torvald Riegel <triegel@...hat.com> wrote:

[ . . . ]

> > The standard is clear on what's required.  I strongly suggest reading
> > the formalization of the memory model by Batty et al.
> 
> Can you point to it? Because I can find a draft standard, and it sure
> as hell does *not* contain any clarity of the model. It has a *lot* of
> verbiage, but it's pretty much impossible to actually understand, even
> for somebody who really understands memory ordering.

I suspect he is thinking of the following:

"Mathematizing C++ Concurrency." Mark Batty, Scott Owens, Susmit Sarkar,
Peter Sewell, and Tjark Weber.
https://www.cl.cam.ac.uk/~pes20/cpp/popl085ap-sewell.pdf

Even if you don't like the math, it contains some very good examples.

							Thanx, Paul

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/