Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752848AbaARCB7 (ORCPT ); Fri, 17 Jan 2014 21:01:59 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:50500 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752026AbaARCB5 (ORCPT ); Fri, 17 Jan 2014 21:01:57 -0500 Date: Sat, 18 Jan 2014 03:01:55 +0100 From: Pavel Machek To: "H. Peter Anvin" Cc: Borislav Petkov , Henrique de Moraes Holschuh , X86 ML , LKML , Kim Naru , Aravind Gopalakrishnan , Sherry Hurwitz Subject: Re: [PATCH] x86, CPU, AMD: Add workaround for family 16h, erratum 793 Message-ID: <20140118020155.GA24158@amd.pavel.ucw.cz> References: <20140114114133.GA31473@khazad-dum.debian.net> <20140114115547.GA29887@pd.tnic> <52D55468.6000000@zytor.com> <20140114153534.GE29865@pd.tnic> <20140114162722.GF29865@pd.tnic> <20140117222806.GB13930@amd.pavel.ucw.cz> <20140117225013.GE14649@pd.tnic> <52D9B408.4020007@zytor.com> <20140118002926.GA22185@amd.pavel.ucw.cz> <52D9D6FC.7050100@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <52D9D6FC.7050100@zytor.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri 2014-01-17 17:21:00, H. Peter Anvin wrote: > On 01/17/2014 04:29 PM, Pavel Machek wrote: > > > > Have you checked your dmesg recently? Normal people don't read > > it... it is just too much of it. > > > >> Printing a warning is appropriate if we can't actually fix the problem > >> in the OS. If we actually make the problem go away then we have just > >> done our job and we can be done with it. > > > > I disagree. Older kernel versions still may have problem, etc. > > > > We normally do print warnings for problems we work around. We want > > vendors to fix their hardware, too... > > > > ACPI BIOS Warning (bug): 32/64X FACS address mismatch in FADT - > > 0xBDB5FF40/0x00000000BDB64F40, using 32 (20131115/tbfadt-522) > > [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored > > > > You say people don't read their dmesg... > ... because there is too much ... > ... so let's add more? I'd say that proposed "your bios has a bug" is way more useful than stuff such as: pci_bus 0000:00: root bus resource [bus 00-ff] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xffffffff] pci 0000:00:00.0: [8086:2e30] type 00 class 0x060000 pci 0000:00:01.0: [8086:2e31] type 01 class 0x060400 pci 0000:00:01.0: PME# supported from D0 D3hot D3cold pci 0000:00:01.0: System wakeup disabled by ACPI pci 0000:00:02.0: [8086:2e32] type 00 class 0x030000 pci 0000:00:02.0: reg 0x10: [mem 0xd0000000-0xd03fffff 64bit] pci 0000:00:02.0: reg 0x18: [mem 0xc0000000-0xcfffffff 64bit pref] pci 0000:00:02.0: reg 0x20: [io 0xf140-0xf147] pci 0000:00:02.1: [8086:2e33] type 00 class 0x038000 pci 0000:00:02.1: reg 0x10: [mem 0xd0400000-0xd04fffff 64bit] pci 0000:00:1b.0: [8086:27d8] type 00 class 0x040300 pci 0000:00:1b.0: reg 0x10: [mem 0xd0600000-0xd0603fff 64bit] pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold pci 0000:00:1c.0: [8086:27d0] type 01 class 0x060400 pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold pci 0000:00:1c.0: System wakeup disabled by ACPI pci 0000:00:1c.1: [8086:27d2] type 01 class 0x060400 pci 0000:00:1c.1: PME# supported from D0 D3hot D3cold pci 0000:00:1c.1: System wakeup disabled by ACPI pci 0000:00:1d.0: [8086:27c8] type 00 class 0x0c0300 pci 0000:00:1d.0: reg 0x20: [io 0xf080-0xf09f] pci 0000:00:1d.0: System wakeup disabled by ACPI So yes. Lets add useful stuff. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/