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[94.230.152.15]) by smtp.gmail.com with ESMTPSA id h3-v6sm6221632ede.42.2018.10.28.16.06.35 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 28 Oct 2018 16:06:35 -0700 (PDT) Date: Mon, 29 Oct 2018 00:06:27 +0100 From: Andrea Parri To: "Paul E. McKenney" , Peter Zijlstra , Josh Triplett Cc: linux-kernel@vger.kernel.org Subject: [RFR] Store tearing Message-ID: <20181028230627.GA3420@andrea> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline 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 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