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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=ham 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 E8E0CC04AB4 for ; Thu, 16 May 2019 14:28:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BA9B520862 for ; Thu, 16 May 2019 14:28:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=lucidpixels.com header.i=@lucidpixels.com header.b="hEs9/pzg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727505AbfEPO2C (ORCPT ); Thu, 16 May 2019 10:28:02 -0400 Received: from mail-oi1-f170.google.com ([209.85.167.170]:42460 "EHLO mail-oi1-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727468AbfEPO2C (ORCPT ); Thu, 16 May 2019 10:28:02 -0400 Received: by mail-oi1-f170.google.com with SMTP id w9so842918oic.9 for ; Thu, 16 May 2019 07:28:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lucidpixels.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=4x/0z94RkEH7qnNh1ar1v+FYD4KQFu3kNcvlVqxawww=; b=hEs9/pzgTmayDkZAx/COHFiBNPrX5KxeCcyULrZ0Rir3lATGKmSiVs6OAgptMMMgkD MMmeMTwkFTovgBIuiPtJq41bOAZZa2Js8KxpCW/xCZ4ZDDRcOTUMsi2fXo5m96D6CV0L HdC0Gz7JwTBVd2I2viBw9enqNkNiYxlbXs61w= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=4x/0z94RkEH7qnNh1ar1v+FYD4KQFu3kNcvlVqxawww=; b=Z1J6HwE+x17L4GKN5Uye7uc39Uvu9qTsbb77oX28wmJCwrPf2umBAjXC7f1hXrotoO tKbnuYtlvIUad0EQan2dSDkVoicDhdTBEkc/xPWX/uNk1sZq49mwNYeo5SYFWI6D+C1Z hOi49kkirgURwxeqhrshrUii82jiKoUOOhoz0GfVp8mnhfmF/5FdqONZ7ruY9r54psum UYaSj7+17znmGjtWIGvOv7rkl1GOGFhFvxA9E9Rjaaj0lhyz3/OVkhwt/FivTOb4dTbf W9KSmjh6AqjZl3HHYHRemzVcrWcOgoYCkWqWnl76yPAnLmbpM6HHFEMGisEwGP0DxHEJ 7F7Q== X-Gm-Message-State: APjAAAUqtU/VtUoTG9dQu9Xh3MjkTJdgjg72ASuqNVa0l05PK0Rlp4Te 02AQ8lQuYBCwgOeIWeCN7ObUM5BlSjvVJV+GxK/Sz3/to/SayQ== X-Google-Smtp-Source: APXvYqx6Mhh1cAVHSBlbeqHeB6XhpldkqP160VLPmAiojbgzjTImwJfvUrmMIuPBsatW8cpykT/ZgaCwa2nDY4V9ScA= X-Received: by 2002:aca:af4a:: with SMTP id y71mr10475319oie.55.1558016881294; Thu, 16 May 2019 07:28:01 -0700 (PDT) MIME-Version: 1.0 References: <002901d5064d$42355ea0$c6a01be0$@lucidpixels.com> <20190509111343.rvmy5noqlf4os3zk@box> In-Reply-To: From: Justin Piszcz Date: Thu, 16 May 2019 10:27:50 -0400 Message-ID: Subject: Re: 5.1 kernel: khugepaged stuck at 100% To: "Kirill A. Shutemov" Cc: LKML Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 16, 2019 at 10:17 AM Justin Piszcz wrote: > > On Thu, May 16, 2019 at 10:14 AM Justin Piszcz wrote: > > > > On Tue, May 14, 2019 at 9:16 AM Kirill A. Shutemov wrote: > > > > > Could you check what khugepaged doing? > > > > > > cat /proc/$(pidof khugepaged)/stack > > > > It is doing it again, 10:12am - 2019-05-16 > > > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > > 77 root 39 19 0 0 0 R 100.0 0.0 92:06.94 khugepaged > > > > Kernel: 5.1.2 > > > > $ sudo cat /proc/$(pidof khugepaged)/stack > > [<0>] 0xffffffffffffffff > > As a workaround/in the meantime--I will add the following to lilo/grub: transparent_hugepage=never Justin