Received: by 2002:a25:e7d8:0:0:0:0:0 with SMTP id e207csp1327138ybh; Sun, 15 Mar 2020 00:16:15 -0700 (PDT) X-Google-Smtp-Source: ADFU+vvVEd0sfXEal3e84JFVcA/olg+cx3tLkhhZgBw9pY33PrJS3kR3u+fX73bI55zJfonIBCyY X-Received: by 2002:aca:d8c5:: with SMTP id p188mr13717723oig.112.1584256575521; Sun, 15 Mar 2020 00:16:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1584256575; cv=none; d=google.com; s=arc-20160816; b=Vq2DOfmo8K5JfA1LfwJRgDD7DRBJdUekw4/aDPffQda7Y9nvZICRuyCzXAxLsxN7N5 Ty4RvIspygzNdWLiorLBVIpEykhf/ak00bYvLDCLxEZVPwBxXxdW3TpZhgSszTSwRaLA 6/6FHighpF3vR2619l0to4cO435GzYR/k3b4y+udPAldDObadanXnk2B5vk5MUOpJmuc C8sX02eLD0a8BOVwF4OBWA3OY659pioWgfcE0JWx0V8sG+0FS0ZIpqA9jAJUSIj3envl 5xLzirqnjuPStZ9fFXpkj2Z1N9FcNAB6f185AMfvnCh/7wvxNUEZqTNMkw7FGf3hW8G0 EEjA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature; bh=vXc/c+ZKh3wHtb2Dc8YCwaJA//JT5SbM6lXWpvbO8AQ=; b=uvkWErwdC/ygEPkXiMc6yrOg/c+qzQViHVcx0a8xNwrl5LWJ61sYvhhH/4Jt3rJnsX JByQ7GTIwlk+0+Wa/514i2l6ToSP8fQfMB0qbvvzJnN1SFFqADWi+hgVgdPZq5By+VPy jgK+KHFGfo3ergXslSznNslQ68ZFXh7T+fV+00qdLZkGSNWSgK0Hzuw1QJhKTGxBuObP AVXyKj/QX0FAWNYj0VUL4NS0fRYedsUvDT1T+LkBsgbhZJEeOF4CQCjgq21umZOcG1sv lheC6qIcEHI0qMDP1qNMzVhXcrB0SAyoLGQ/7dbsqtSiOC5DynEaowS0tqORasFS7/ux 9QTA== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=MMrIUEuz; 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id t19si7933747oif.250.2020.03.15.00.16.04; Sun, 15 Mar 2020 00:16:15 -0700 (PDT) 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=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=MMrIUEuz; 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 S1727867AbgCOHPn (ORCPT + 99 others); Sun, 15 Mar 2020 03:15:43 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:49192 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727670AbgCOHPj (ORCPT ); Sun, 15 Mar 2020 03:15:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=vXc/c+ZKh3wHtb2Dc8YCwaJA//JT5SbM6lXWpvbO8AQ=; b=MMrIUEuzJ7ebjTc9V9Nlnb76n0 gQrqIhRup7osiVRCct3KlZzlmrOFKYJxstp2o1tjF3yAPe8ZyKFXgO39+HEDxPtq2/PLVf4szDnR6 MuOTnbvBlbW0Y2wo/hBY7h8tnd1A36QjFiqympgUhuAHsqAXzi+ei527pdTvx7CX9WwjMjB+gZXJA GhEMuXocBMYfmbtVOX38t+8rjoz3QLRW+2Qoal6G+OZ8ARmYbIBSh9MJ5aMR6a7EYgWRvwyOKGVdZ yQ+KWxKa3J6dehD/ZDl5VZ8FUByCU+tm8d8x+J2AQ1yGLjODsbO7HgyX1UB0F2eJQMtcUCyBK0zYK 10/F1sIA==; Received: from willy by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1jD7m0-0001K0-MD; Sat, 14 Mar 2020 14:28:20 +0000 Date: Sat, 14 Mar 2020 07:28:20 -0700 From: Matthew Wilcox To: Randy Dunlap Cc: "Guilherme G. Piccoli" , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, mcgrof@kernel.org, keescook@chromium.org, yzaikin@google.com, tglx@linutronix.de, akpm@linux-foundation.org, kernel@gpiccoli.net Subject: Re: [PATCH] panic: Add sysctl/cmdline to dump all CPUs backtraces on oops event Message-ID: <20200314142820.GQ22433@bombadil.infradead.org> References: <20200310163700.19186-1-gpiccoli@canonical.com> <93f20e59-41b1-48ad-b0eb-e670b18994d5@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <93f20e59-41b1-48ad-b0eb-e670b18994d5@infradead.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Mar 10, 2020 at 01:59:15PM -0700, Randy Dunlap wrote: > > +oops_all_cpu_backtrace: > > +================ > > + > > +Determines if kernel should NMI all CPUs to dump their backtraces when > > I would much prefer that to be written without using NMI as a verb. Concrete suggestion: "If this option is set, the kernel will send an NMI to all CPUs to dump ..."