From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5D14C433E3 for ; Fri, 17 Jul 2020 05:51:33 +0000 (UTC) Received: from shelob.surriel.com (shelob.surriel.com [96.67.55.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 797972071A for ; Fri, 17 Jul 2020 05:51:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="bt5nTuoE" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 797972071A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernelnewbies-bounces+kernelnewbies=archiver.kernel.org@kernelnewbies.org Received: from localhost ([::1] helo=shelob.surriel.com) by shelob.surriel.com with esmtp (Exim 4.94) (envelope-from ) id 1jwJHQ-00006G-0J for kernelnewbies@archiver.kernel.org; Fri, 17 Jul 2020 01:51:32 -0400 Received: from mail-lj1-x233.google.com ([2a00:1450:4864:20::233]) by shelob.surriel.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94) (envelope-from ) id 1jwJFi-00074y-Mn for kernelnewbies@kernelnewbies.org; Fri, 17 Jul 2020 01:49:46 -0400 Received: by mail-lj1-x233.google.com with SMTP id h19so11209415ljg.13 for ; Thu, 16 Jul 2020 22:49:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=yTr44kyTydD2iaGFlQs2TdIloV/F5fdKOWQv2SVIgQ8=; b=bt5nTuoENgyIjfsQLVHc1cCs9M9TJOH70OJdmwjp5mnUXcr0QzP0WQWFLfAQMLHyvr XnhkRJAxN6Yd5K5OMa23IwzEsMfG53astda8ZxbMP83+VjHfyFLiHCSFXMiKIVFo8LL/ wGZv6kgC4BGDF2q4spO+8SN9oTXZ/qbaVM3bxvArKq7qvO0rsHBgA9LPZta8Um8vUNLL FtUnXT4e9wVyIWb2skqN2l7bg31jAR829YHIgqoWDxO6tOsHDyY+zvXI1Ybwk0gg8p5c 9EyCC3Yhx7iH0ZXhY5/SDREnLRkWtGxD2liqDwmSWruGI37lVdw0VxEMoISyvkEj+64M l9AA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=yTr44kyTydD2iaGFlQs2TdIloV/F5fdKOWQv2SVIgQ8=; b=YVOUBjIg9rkXebT5/Tqypg8uOrc2wdc+6+MyO4ugTf9Oi22w2KeBkofs8y5QIwhrZp FVNlXadIhcdr0ZVeHPqUNcBJOAgcziwYNFrnOlzsFJRCjtfr++rqri2qvejm5hewAxvN Ymnlg3CTgdyeeVWsvNfAShiNEL4hna5owFvR3mLOCuynDQyxM2oM7oVK8Gg0xXV5XOKG cYWv5gsPv62j5z1tVjPmOlkklgI4+/ARriV+Kfr5yJ+qNNGjIqqIhnAL9IuFa9ctyxNe fo8h7UqT8I8J+4xg9Iq1byWScBeQ+4+zb8uioCvzt+KL1WYe5/fqysDgB6VetvhyNj8B LpMA== X-Gm-Message-State: AOAM532cR87omn5kyjjs0DNgl1j+f/dLjraDmYBv6r4XCYp9CHV0BuKy cNmgOPYHQ6/lh8jCn6ineqtdbBvNEN81mX55kURSUjrcE58= X-Google-Smtp-Source: ABdhPJwQMPdMv5lHFHFEAWal+mil3nxQob91XogcvfzD0W/Yiif4fOkV5zSuUrXE93EdLf9Ij/4YeYK+izPOtxqKsgY= X-Received: by 2002:a2e:8886:: with SMTP id k6mr3434901lji.119.1594964983381; Thu, 16 Jul 2020 22:49:43 -0700 (PDT) MIME-Version: 1.0 From: William Tambe Date: Fri, 17 Jul 2020 01:49:30 -0400 Message-ID: Subject: Help troubleshooting memory leak when highres=on To: Kernel Newbies X-BeenThere: kernelnewbies@kernelnewbies.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Learn about the Linux kernel List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kernelnewbies-bounces+kernelnewbies=archiver.kernel.org@kernelnewbies.org I am doing porting work; I am having a memory leak issue in a kernel build with CONFIG_HIGH_RES_TIMERS=y. When highres=on, load average as returned by uptime are always null, and KernelStack from /proc/meminfo steadily grows until the system runs out of memory triggering oom-killer and eventually the whole system hangs. Above memory leak and load average issues are not seen when booting the kernel using highres=off. Any idea where I should start debugging these issues ? _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies