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[209.132.180.67]) by mx.google.com with ESMTP id p9-v6si233754plo.133.2018.03.08.21.20.29; Thu, 08 Mar 2018 21:20:43 -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; dkim=pass header.i=@codeaurora.org header.s=default header.b=EzcMS1HF; dkim=pass header.i=@codeaurora.org header.s=default header.b=V3xZ/5w/; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751572AbeCIFSc (ORCPT + 99 others); Fri, 9 Mar 2018 00:18:32 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:37498 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751078AbeCIFSb (ORCPT ); Fri, 9 Mar 2018 00:18:31 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 00CC86070A; Fri, 9 Mar 2018 05:18:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1520572711; bh=D2kAHnHU2weRK3dYpJ/Yq9t7H+rbf1loP7A8yvEPWxs=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=EzcMS1HFC361NyEJyCoKRybnu+MZE/ynAYfH5zGUUc2HDTMtk9C13rIeaC89XJrjv 1yx125Zqxe7z/3gdVHsugdqCzGB2tV4rXlxELvga2D31Cke0U73IVr8UN/cArAH3uL sciJh7EaoVeXzRb00Lj2lIEYz63iUHKx32W3Pxdw= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=2.0 tests=ALL_TRUSTED,BAYES_00, DKIM_SIGNED,T_DKIM_INVALID autolearn=no autolearn_force=no version=3.4.0 Received: from [10.242.136.27] (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: cpandya@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 424DF6038E; Fri, 9 Mar 2018 05:18:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1520572710; bh=D2kAHnHU2weRK3dYpJ/Yq9t7H+rbf1loP7A8yvEPWxs=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=V3xZ/5w/MPcbduic6IH5+zY32DhDR8PDbH3SWWH8jJM9yqLTCW8EWFjDROtwOLzjF SfTxkx0araqcxxo1ylkS4vkaGkmXMYjVNyeaVITwhQG9i4QyAX+z1a1a8Z8HP686Sb KfGZ8jty+MyQvfRteXwvejzcDd+yArqLAM8Bhtco= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 424DF6038E Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=cpandya@codeaurora.org Subject: Re: [PATCH v2] slub: use jitter-free reference while printing age To: Christopher Lameter Cc: penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com, akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <1520492010-19389-1-git-send-email-cpandya@codeaurora.org> From: Chintan Pandya Message-ID: <2e02a8f9-8a28-1db4-3dde-8490ee294e5f@codeaurora.org> Date: Fri, 9 Mar 2018 10:48:24 +0530 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; 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 On 3/8/2018 11:42 PM, Christopher Lameter wrote: > On Thu, 8 Mar 2018, Chintan Pandya wrote: > >> In this case, object got freed later but 'age' >> shows otherwise. This could be because, while >> printing this info, we print allocation traces >> first and free traces thereafter. In between, >> if we get schedule out or jiffies increment, >> (jiffies - t->when) could become meaningless. > > Could you show the new output style too? New output will exactly be same. 'age' is still staying with single jiffies ref in both prints. > > Acked-by: Christoph Lameter Thanks Chintan -- Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project