From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754005AbbANSfv (ORCPT ); Wed, 14 Jan 2015 13:35:51 -0500 Received: from mail.skyhub.de ([78.46.96.112]:36382 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753445AbbANSft (ORCPT ); Wed, 14 Jan 2015 13:35:49 -0500 Date: Wed, 14 Jan 2015 19:35:46 +0100 From: Borislav Petkov To: Andy Lutomirski Cc: Matt Fleming , LKML , "linux-efi@vger.kernel.org" , "H. Peter Anvin" , Thomas Gleixner , Ingo Molnar , Peter Zijlstra Subject: Re: EFI mixed mode + perf = rampant triple faults Message-ID: <20150114183546.GC6902@pd.tnic> References: <5491B4A8.905@amacapital.net> <20141231183739.GA28946@console-pimps.org> <20150114165151.GA3479@codeblueprint.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 14, 2015 at 10:27:47AM -0800, Andy Lutomirski wrote: > How are you manually triggering an MCE? I've been playing with some > MCE stuff recently, but the only reasonably reliable way I know of to > trigger an MCE is using WHEA, and I don't have a box with WHEA, and I > assume your ASUS T100 doesn't either. asm volatile("int $18"); > Tianocore makes assumptions about the kernel's GDT layout? Yuck. Yuck indeed. -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. --