linux-kernel - Re: [PATCH 3/3] tools: memory-model: Add data-race detection

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Message-ID: <20190426144108.GA6235@andrea>
Date:   Fri, 26 Apr 2019 16:41:08 +0200
From:   Andrea Parri <andrea.parri@...rulasolutions.com>
To:     Alan Stern <stern@...land.harvard.edu>
Cc:     "Paul E. McKenney" <paulmck@...ux.ibm.com>,
        LKMM Maintainers -- Akira Yokosawa <akiyks@...il.com>,
        Boqun Feng <boqun.feng@...il.com>,
        Daniel Lustig <dlustig@...dia.com>,
        David Howells <dhowells@...hat.com>,
        Jade Alglave <j.alglave@....ac.uk>,
        Luc Maranget <luc.maranget@...ia.fr>,
        Nicholas Piggin <npiggin@...il.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Will Deacon <will.deacon@....com>,
        Kernel development list <linux-kernel@...r.kernel.org>,
        Joel Fernandes <joel@...lfernandes.org>
Subject: Re: [PATCH 3/3] tools: memory-model: Add data-race detection

On Mon, Apr 22, 2019 at 12:18:09PM -0400, Alan Stern wrote:
> This patch adds data-race detection to the Linux-Kernel Memory Model.
> As part of this effort, support is added for:
> 
> 	compiler barriers (the barrier() function), and
> 
> 	a new Preserved Program Order term: (addr ; [Plain] ; wmb)
> 
> Data races are marked with a special Flag warning in herd.  It is
> not guaranteed that the model will provide accurate predictions when a
> data race is present.
> 
> The patch does not include documentation for the data-race detection
> facility.  The basic design has been explained in various emails, and
> a separate documentation patch will be submitted later.
> 
> This work is based on an earlier formulation of data races for the
> LKMM by Andrea Parri.
> 
> Signed-off-by: Alan Stern <stern@...land.harvard.edu>

For the entire series,

Reviewed-by: Andrea Parri <andrea.parri@...rulasolutions.com>

Thanks,
  Andrea