From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754916Ab1EYTE2 (ORCPT ); Wed, 25 May 2011 15:04:28 -0400 Received: from out3.smtp.messagingengine.com ([66.111.4.27]:33254 "EHLO out3.smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753064Ab1EYTE1 (ORCPT ); Wed, 25 May 2011 15:04:27 -0400 X-Sasl-enc: xghCKsVD63TbaZPzXwGoCiApMxT/SJ8hGWWslxKyYKtm 1306350267 Date: Wed, 25 May 2011 16:04:24 -0300 From: Henrique de Moraes Holschuh To: Ingo Molnar Cc: Andi Kleen , Andi Kleen , x86@kernel.org, linux-kernel@vger.kernel.org, Borislav Petkov Subject: Re: [PATCH 1/3] x86, intel: Output microcode revision Message-ID: <20110525190424.GA17793@khazad-dum.debian.net> References: <1306278210-18285-1-git-send-email-andi@firstfloor.org> <20110525070604.GE429@elte.hu> <20110525160656.GB25225@khazad-dum.debian.net> <20110525165803.GB14958@tassilo.jf.intel.com> <20110525182405.GA17864@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110525182405.GA17864@elte.hu> X-GPG-Fingerprint: 1024D/1CDB0FE3 5422 5C61 F6B7 06FB 7E04 3738 EE25 DE3F 1CDB 0FE3 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 Wed, 25 May 2011, Ingo Molnar wrote: > So displaying a non-fatal 'info' message about it would in fact be > rather wise. Nothing scary, but we'd like to be informed. A printk with levels info or notice, I do agree to be a good idea. In fact, I like the idea a lot. WARN() and kernel tainting, which is what I understand was being proposed before, I cannot agree with. OTOH, IMO mismatched microcode should be grounds for more serious measures. And that includes fixing the annoying userspace ABI that encourages bad behaviour in the first place and makes it harder to do the proper thing. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh