From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Fleming Subject: Re: [BUG] can't boot up: unable to handle kernel paging request at ffffffffff340003 Date: Tue, 11 Feb 2014 14:18:46 +0000 Message-ID: <20140211141846.GA1725@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> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <87lhxh69u0.fsf-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Madper Xie Cc: Matt Fleming , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Matthew Garrett , "Rafael J. Wysocki" , Josh Triplett List-Id: linux-efi@vger.kernel.org (Entering the realm of ACPI, pulling in more folks) On Tue, 11 Feb, at 09:47:57PM, Madper Xie wrote: > Thanks for your reply. I attached the all the dmesg outputs for you. > [ 0.000000] ACPI: BGRT 00000000d9bb5100 00003C (v00 HPQOEM SLIC-BPC 01072009 AMI 00010013) Your BGRT table has an extra 4 bytes for some reason, (0x3C should be 0x38) and doesn't match the defintion in include/acpi/actbl3.h, struct acpi_table_bgrt { struct acpi_table_header header; /* Common ACPI table header */ u16 version; u8 status; u8 image_type; u64 image_address; u32 image_offset_x; u32 image_offset_y; }; which explains why when we dereference ->image_address we don't get a sensible value. Guys, what do you make of this? Firmware bug? Full thread here, http://article.gmane.org/gmane.linux.kernel.efi/3499 -- Matt Fleming, Intel Open Source Technology Center