From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 9AFD4A2EDB for ; Tue, 1 Oct 2019 10:48:17 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 5E334493D; Tue, 1 Oct 2019 10:48:17 +0200 (CEST) Received: from mail-wm1-f67.google.com (mail-wm1-f67.google.com [209.85.128.67]) by dpdk.org (Postfix) with ESMTP id B2B4944C7 for ; Tue, 1 Oct 2019 10:48:16 +0200 (CEST) Received: by mail-wm1-f67.google.com with SMTP id y21so2273873wmi.0 for ; Tue, 01 Oct 2019 01:48:16 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:subject:from:to:cc:date:in-reply-to :references:content-transfer-encoding:user-agent:mime-version; bh=0SF8kDfb1DmQmIGLUhqsXl6492nS67lKqJrxR13U2F8=; b=HDtad9u5kJ/dCDqRYgDQWcPG+spbD3FGedMvuoM/RlCj3mSyBNrCzp2Jqz7zy/opRI +rqKv1PJYBH2vnJJBMJp2q/5+AhEBt1uyUoKAAJ9v6m36hGdYWPIkykNPiGPmpvsYQbB mi+x0Kg2I/ED62yFziHfstnI6k9t+SGohb0CM2JMwqDFVuV3UZAjL3TLzb0ZjTNR0/4L 5J1meeN0T56LCiKvvwsEB6RhgKhFjdhAsmLcRsjJewvGQrFTjxunFQmZPWX1KVi6er4E LEya66PgfKHEqVJLVFYypMTYDCWbkZhX6HlhzcyiZ21aFD2+i/0AI/AYGNVYcW/UCmYx 8L5w== X-Gm-Message-State: APjAAAWDPWj9aQMUHGJ3yv0qYg3u+cOJIVal5g3JRZwHlBc0F+fDfusz Thhk+WtuE2q/JWHx7Iu7xpk= X-Google-Smtp-Source: APXvYqy+AneoKWMhGMS5X+D6ypC9c2AmD7jECNexqAUdPJM0B/2Iw/lmVSmpGUBkjGelrdQHpWMD2g== X-Received: by 2002:a7b:c7d4:: with SMTP id z20mr2691427wmk.49.1569919696218; Tue, 01 Oct 2019 01:48:16 -0700 (PDT) Received: from localhost ([2a01:4b00:f419:6f00:7a8e:ed70:5c52:ea3]) by smtp.gmail.com with ESMTPSA id j11sm994712wrw.86.2019.10.01.01.48.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Oct 2019 01:48:15 -0700 (PDT) Message-ID: From: Luca Boccassi To: Thomas Monjalon , Gavin Hu Cc: stable@dpdk.org, honnappa.nagarahalli@arm.com, Nipun Gupta , Konstantin Ananyev Date: Tue, 01 Oct 2019 09:48:14 +0100 In-Reply-To: <2613008.bAPQ5MWe9V@xps> References: <2613008.bAPQ5MWe9V@xps> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.30.5-1.1 MIME-Version: 1.0 Subject: Re: [dpdk-stable] missing ring memory barrier in 17.11 X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" On Tue, 2019-10-01 at 09:41 +0200, Thomas Monjalon wrote: > Hi Luca, Gavin, >=20 > It seems the fix 85cffb2eccd9 ("ring: enforce reading tail before > slots") > should be backported in 17.11. >=20 > This patch is missing because the root cause is wrongly identified. > It is referenced as > Fixes: c9fb3c62896f ("ring: move code in a new header file") > in 18.02, but in reality it is from 17.05: > Fixes: 0dfc98c507b1 ("ring: separate out head index > manipulation") >=20 > Do you agree? Hi, Makes sense to me, and it applies cleanly (after accounting for the source file name change). I'll queue it up for 17.11.8. --=20 Kind regards, Luca Boccassi