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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_RED 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 19FCAC07E96 for ; Sat, 3 Jul 2021 00:28:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ECFE961427 for ; Sat, 3 Jul 2021 00:28:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230037AbhGCAbH (ORCPT ); Fri, 2 Jul 2021 20:31:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230017AbhGCAbH (ORCPT ); Fri, 2 Jul 2021 20:31:07 -0400 Received: from mail-lj1-x22a.google.com (mail-lj1-x22a.google.com [IPv6:2a00:1450:4864:20::22a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CB736C061762 for ; Fri, 2 Jul 2021 17:28:33 -0700 (PDT) Received: by mail-lj1-x22a.google.com with SMTP id e3so7196418ljo.6 for ; Fri, 02 Jul 2021 17:28:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=eZi2fG4xvxGM+PF+5YbM/QZZR4RGtZj2SWD8vT7jnr8=; b=MebRkDZnkxhGjqV5tKbt949YMnofF0K9+ewpJE8FnCtsmuqMXDm6whUd5+FbpXmbt5 CYK/wQsWlpf8bgNXzMbiK8s5hyvaE2Ilrz5GSrcscZrjMwRXDQNllCYygxEgL30lr3Cm 55wHw7Dz6R6+ELQJZ1Wq3WEqw/n3lxMT3dCkM= 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=eZi2fG4xvxGM+PF+5YbM/QZZR4RGtZj2SWD8vT7jnr8=; b=izEPDo7tfelwRHy3DCNu6A3lwYF3wOsVMMs8hYHkncg1vrjInhi1nLme6Rt1RLAX4V sX1YvchnvX3QdhzqvJ31/8YHGY8V9NOzpFCO9d1wT9Xq2qPgNPmhMR30+6VH8U4GjJ2r v+6pkIwhdxcdE0Lf/UX1BT7u53EH6z6xc4XZzmRt49SMk3/ETXUwS3eDc588gXsp0DXL 6UjBc3HHvKvv28zy4eONAoWfVXKNo2YLHW8xUNY+Va/edDPwn/K/d5U1zUXGYvaaDmIb 1elsBnEADu1FdGf7LcMNXupuyvHmIVCBq1Hrsu8zK4SiQ1dzUyfGxoVVay8fwJEwO1GC /1/w== X-Gm-Message-State: AOAM531KjMrsncIIiQ7ipnDs3id18UAxtI2Z1KhezwNn5icxdHgQMgah 5yDtzdP0ljVZSjB2LvcTNhHgHsSQIG8pTR8XwBQ= X-Google-Smtp-Source: ABdhPJzJa2vB8Rb8bywgpFtguGPrVSSvACUMeQ6X4Jgsp51+UoQ26o2/te2M5gfLq81NzxwcXl3nqg== X-Received: by 2002:a2e:7412:: with SMTP id p18mr1568431ljc.428.1625272111845; Fri, 02 Jul 2021 17:28:31 -0700 (PDT) Received: from mail-lf1-f53.google.com (mail-lf1-f53.google.com. [209.85.167.53]) by smtp.gmail.com with ESMTPSA id z21sm518240ljm.52.2021.07.02.17.28.31 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 02 Jul 2021 17:28:31 -0700 (PDT) Received: by mail-lf1-f53.google.com with SMTP id a18so21101834lfs.10 for ; Fri, 02 Jul 2021 17:28:31 -0700 (PDT) X-Received: by 2002:a05:6512:3585:: with SMTP id m5mr920647lfr.253.1625272111199; Fri, 02 Jul 2021 17:28:31 -0700 (PDT) MIME-Version: 1.0 References: <20210630184624.9ca1937310b0dd5ce66b30e7@linux-foundation.org> In-Reply-To: <20210630184624.9ca1937310b0dd5ce66b30e7@linux-foundation.org> From: Linus Torvalds Date: Fri, 2 Jul 2021 17:28:15 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: incoming To: Andrew Morton Cc: Linux-MM , mm-commits@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org On Wed, Jun 30, 2021 at 6:46 PM Andrew Morton wrote: > > This is the rest of the -mm tree, less 66 patches which are dependent on > things which are (or were recently) in linux-next. I'll trickle that > material over next week. I haven't bisected this yet, but with the current -git I'm getting watchdog: BUG: soft lockup - CPU#41 stuck for 49s! and the common call chain seems to be in flush_tlb_mm_range -> on_each_cpu_cond_mask. Commit e058a84bfddc42ba356a2316f2cf1141974625c9 is good, and looking at the pulls and merges I've done since, this -mm series looks like the obvious culprit. I'll go start bisection, but I thought I'd give a heads-up in case somebody else has seen TLB-flush-related lockups and already figured out the guilty party.. Linus