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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 B026BECDFB4 for ; Wed, 18 Jul 2018 02:44:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 739512075A for ; Wed, 18 Jul 2018 02:44:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 739512075A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731740AbeGRDT5 (ORCPT ); Tue, 17 Jul 2018 23:19:57 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:44020 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730180AbeGRDT5 (ORCPT ); Tue, 17 Jul 2018 23:19:57 -0400 Received: from localhost.localdomain (c-24-4-125-7.hsd1.ca.comcast.net [24.4.125.7]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 6EAE3BD1; Wed, 18 Jul 2018 02:44:22 +0000 (UTC) Date: Tue, 17 Jul 2018 19:44:21 -0700 From: Andrew Morton To: Omar Sandoval Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Alexey Dobriyan , Eric Biederman , James Morse , Bhupesh Sharma , kernel-team@fb.com Subject: Re: [PATCH v2 7/7] proc/kcore: add vmcoreinfo note to /proc/kcore Message-Id: <20180717194421.a5430cf03aad12a9e40e65f4@linux-foundation.org> In-Reply-To: <19c55add0fd15854798dde00d93350d76034896d.1531440458.git.osandov@fb.com> References: <19c55add0fd15854798dde00d93350d76034896d.1531440458.git.osandov@fb.com> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 12 Jul 2018 17:09:39 -0700 Omar Sandoval wrote: > From: Omar Sandoval > > The vmcoreinfo information is useful for runtime debugging tools, not > just for crash dumps. A lot of this information can be determined by > other means, but this is much more convenient. > What effect does this have upon the overall size of the dump file?