Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754438AbaBMK4K (ORCPT ); Thu, 13 Feb 2014 05:56:10 -0500 Received: from arkanian.console-pimps.org ([212.110.184.194]:49873 "EHLO arkanian.console-pimps.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754090AbaBMKz5 (ORCPT ); Thu, 13 Feb 2014 05:55:57 -0500 Date: Thu, 13 Feb 2014 10:55:47 +0000 From: Matt Fleming To: Toshi Kani Cc: Madper Xie , Matt Fleming , "linux-kernel@vger.kernel.org" , "linux-efi@vger.kernel.org" , Matthew Garrett , "Rafael J. Wysocki" , Josh Triplett Subject: Re: [BUG] can't boot up: unable to handle kernel paging request at ffffffffff340003 Message-ID: <20140213105547.GC20717@console-pimps.org> References: <8738jr5t3e.fsf@redhat.com> <20140210175246.GB2887@console-pimps.org> <87mwhy8iaj.fsf@redhat.com> <20140211131640.GD2887@console-pimps.org> <87lhxh69u0.fsf@redhat.com> <20140211141846.GA1725@console-pimps.org> <1392221703.5612.164.camel@misato.fc.hp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1392221703.5612.164.camel@misato.fc.hp.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 12 Feb, at 09:15:03AM, Toshi Kani wrote: > > Hi Matt, > > Yes, I agree that the table size should be 0x38. However, ACPI spec > states that bit0 of status indicates if the boot image graphic is valid. > This bit is set to 0 (invalid) on the system. Can you check this bit > and return when invalid? Madper, could you try out this patch? --- diff --git a/arch/x86/platform/efi/efi-bgrt.c b/arch/x86/platform/efi/efi-bgrt.c index 4df9591eadad..f15103dff4b4 100644 --- a/arch/x86/platform/efi/efi-bgrt.c +++ b/arch/x86/platform/efi/efi-bgrt.c @@ -42,7 +42,7 @@ void __init efi_bgrt_init(void) if (bgrt_tab->header.length < sizeof(*bgrt_tab)) return; - if (bgrt_tab->version != 1) + if (bgrt_tab->version != 1 || bgrt_tab->status != 1) return; if (bgrt_tab->image_type != 0 || !bgrt_tab->image_address) return; -- Matt Fleming, Intel Open Source Technology Center -- 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/