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=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT 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 E0574C43381 for ; Mon, 25 Feb 2019 11:30:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9F85E2083D for ; Mon, 25 Feb 2019 11:30:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alien8.de header.i=@alien8.de header.b="nnXAZORr" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726827AbfBYLaM (ORCPT ); Mon, 25 Feb 2019 06:30:12 -0500 Received: from mail.skyhub.de ([5.9.137.197]:53018 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726701AbfBYLaM (ORCPT ); Mon, 25 Feb 2019 06:30:12 -0500 Received: from zn.tnic (p200300EC2BC6800089D86D6F51D98E14.dip0.t-ipconnect.de [IPv6:2003:ec:2bc6:8000:89d8:6d6f:51d9:8e14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id BE1131EC04F3; Mon, 25 Feb 2019 12:30:10 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1551094210; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=/FsJbafpqruT6NHOlA/229mUWJa4T8lJz4mdJfelL3M=; b=nnXAZORrvR6KIA50c1VenOnrtAjktdPnOwb9xv1Zpg+1j7tJ6kdZm6mgwZWd8m31LJkRKi xhXOT0C2Wldsv2kFEdbkrDdn9of1f9g9/pEby+5kfM+Fc6J3TB/blqpk0kUxYcZ0IQFpHQ MTBFoSWuan9/VDstFvZQ6VlRDEP29Tc= Date: Mon, 25 Feb 2019 12:30:03 +0100 From: Borislav Petkov To: Dave Young Cc: Joerg Roedel , bhe@redhat.com, Jerry Hoemann , x86@kernel.org, Randy Dunlap , kexec@lists.infradead.org, linux-kernel@vger.kernel.org, Pingfan Liu , Mike Rapoport , Andrew Morton , yinghai@kernel.org, vgoyal@redhat.com, iommu@lists.linux-foundation.org, konrad.wilk@oracle.com Subject: Re: [PATCHv7] x86/kdump: bugfix, make the behavior of crashkernel=X consistent with kaslr Message-ID: <20190225113003.GE26145@zn.tnic> References: <20190215102458.GD10433@zn.tnic> <20190218014820.GA10711@dhcp-128-65.nay.redhat.com> <20190220083241.GA3447@zn.tnic> <20190220094146.GA8597@dhcp-128-65.nay.redhat.com> <20190221171321.GD12997@zn.tnic> <20190222021101.GA11654@dhcp-128-65.nay.redhat.com> <20190222084241.GC8380@suse.de> <20190222130026.GA30766@zn.tnic> <20190225110043.GA5884@suse.de> <20190225111216.GA9276@dhcp-128-65.nay.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20190225111216.GA9276@dhcp-128-65.nay.redhat.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Feb 25, 2019 at 07:12:16PM +0800, Dave Young wrote: > If we move to high as default, it will allocate 160M high + 256M low. It We won't move to high by default - we will *fall* back to high if the default allocation fails. > To make the process less fragile maybe we can remove the 896M limitation > and only try <4G then go to high. Sure, the more robust for the user, the better. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.