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 4CFFFC4360F for ; Thu, 4 Apr 2019 14:41:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 114AA2147C for ; Thu, 4 Apr 2019 14:41:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alien8.de header.i=@alien8.de header.b="i04Bd3zz" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728849AbfDDOlS (ORCPT ); Thu, 4 Apr 2019 10:41:18 -0400 Received: from mail.skyhub.de ([5.9.137.197]:34498 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727310AbfDDOlS (ORCPT ); Thu, 4 Apr 2019 10:41:18 -0400 Received: from zn.tnic (p200300EC2F148A00329C23FFFEA6A903.dip0.t-ipconnect.de [IPv6:2003:ec:2f14:8a00:329c:23ff:fea6:a903]) (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 64F601EC05DE; Thu, 4 Apr 2019 16:41:17 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1554388877; 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=/YZzw1RW81PhsLKH+mISk/ZZsfEZsoZCLh+7jR7MDYc=; b=i04Bd3zzYZswNXui3NDkomjcYFFvXM5Xo8SWfF8CMb7/vrWOb1mnl5OpLz0wMyzNlCFVb1 sMJnKJ2HVQQ/OifjVdXbHRz/NJtllwiAOKH3aJyR8YjIimnAlEaqvszjKZX4ThbtFOsf6O eUgigJDeVdIJALWdzDoHSOtvtc9HZZw= Date: Thu, 4 Apr 2019 16:41:15 +0200 From: Borislav Petkov To: Dave Young Cc: Junichi Nomura , "bhe@redhat.com" , "fanc.fnst@cn.fujitsu.com" , "x86@kernel.org" , "kexec@lists.infradead.org" , "kasong@redhat.com" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH v3] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel Message-ID: <20190404144115.GE22539@zn.tnic> References: <20190326135714.GG1867@zn.tnic> <20190327014852.GA3659@MiWiFi-R3L-srv> <73322ba9-e436-68db-7863-afd31607d969@ce.jp.nec.com> <20190328064343.GA1877@MiWiFi-R3L-srv> <20190328074337.GA9470@jeru.linux.bs1.fc.nec.co.jp> <20190328155256.GP22720@zn.tnic> <20190402102529.GA21698@jeru.linux.bs1.fc.nec.co.jp> <20190404073233.GC5708@dhcp-128-65.nay.redhat.com> <20190404122425.GC22539@zn.tnic> <20190404141241.GB7789@dhcp-128-65.nay.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20190404141241.GB7789@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 Thu, Apr 04, 2019 at 10:12:41PM +0800, Dave Young wrote: > The early code hang can make people confused, it is hard to > say what happens and not easy to debug. But if we return 0 then kernel > just continue to boot, and fail later because of no acpi root pointer, at > least we can have some kernel boot log. Is it clear from that boot log where we failed? -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.