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[94.230.152.15]) by smtp.gmail.com with ESMTPSA id w14-v6sm5370480eds.16.2018.10.28.16.10.11 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 28 Oct 2018 16:10:11 -0700 (PDT) Date: Mon, 29 Oct 2018 00:10:03 +0100 From: Andrea Parri To: "Paul E. McKenney" , Peter Zijlstra , Josh Triplett Cc: linux-kernel@vger.kernel.org Subject: Re: [RFR] Store tearing Message-ID: <20181028231003.GA4021@andrea> References: <20181028230627.GA3420@andrea> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181028230627.GA3420@andrea> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hopefully, with Paul's proper email address this time, Andrea On Mon, Oct 29, 2018 at 12:06:27AM +0100, Andrea Parri wrote: > Hi, > > memory-barriers.txt says: > > [on "store tearing"] > > "In fact, a recent bug (since fixed) caused GCC to incorrectly use > this optimization in a volatile store.". > > I was wondering if you could help me retrieve some reference/discussions > about this? > > Thanks, > Andrea