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[209.132.180.67]) by mx.google.com with ESMTP id p5si9313277otk.221.2020.01.14.01.15.12; Tue, 14 Jan 2020 01:15:25 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728855AbgANJNy (ORCPT + 99 others); Tue, 14 Jan 2020 04:13:54 -0500 Received: from mga03.intel.com ([134.134.136.65]:62350 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725820AbgANJNy (ORCPT ); Tue, 14 Jan 2020 04:13:54 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Jan 2020 01:13:53 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,432,1571727600"; d="scan'208";a="225167375" Received: from unknown (HELO [10.238.129.140]) ([10.238.129.140]) by orsmga003.jf.intel.com with ESMTP; 14 Jan 2020 01:13:51 -0800 Subject: Re: [PATCH 2/4] x86/resctrl: Fix use-after-free due to inaccurate refcount of rdtgroup To: Sasha Levin , tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com Cc: x86@kernel.org, linux-kernel@vger.kernel.org, pei.p.jia@intel.com, stable@vger.kernel.org, Xiaochen Shen References: <1578500886-21771-3-git-send-email-xiaochen.shen@intel.com> <20200109143631.EF0A42077C@mail.kernel.org> From: Xiaochen Shen Message-ID: Date: Tue, 14 Jan 2020 17:13:50 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: <20200109143631.EF0A42077C@mail.kernel.org> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Sasha, The backporting for v4.14.x stable tree needs some manual tweaking due to difference code bases: 1. x86/resctrl rename/re-arrange in v5.0 upstream kernel. 2. Code re-arrange in upstream commit 17eafd076291 ("x86/intel_rdt: Split resource group removal in two"). The backporting for v4.19.x stable tree needs some manual tweaking due to difference code bases: x86/resctrl rename/re-arrange in v5.0 upstream kernel. I will work on the backporting once this patch is merged into upstream. Thank you. On 1/9/2020 22:36, Sasha Levin wrote: > Hi, > > [This is an automated email] > > This commit has been processed because it contains a "Fixes:" tag, > fixing commit: f3cbeacaa06e ("x86/intel_rdt/cqm: Add rmdir support"). > > The bot has tested the following trees: v5.4.8, v4.19.93, v4.14.162. > > v5.4.8: Build OK! > v4.19.93: Failed to apply! Possible dependencies: > Unable to calculate > > v4.14.162: Failed to apply! Possible dependencies: > 17eafd076291 ("x86/intel_rdt: Split resource group removal in two") > > > NOTE: The patch will not be queued to stable trees until it is upstream. > > How should we proceed with this patch? > -- Best regards, Xiaochen