From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752111Ab3GJHbG (ORCPT ); Wed, 10 Jul 2013 03:31:06 -0400 Received: from mail.skyhub.de ([78.46.96.112]:45435 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750980Ab3GJHbF (ORCPT ); Wed, 10 Jul 2013 03:31:05 -0400 Date: Wed, 10 Jul 2013 09:30:49 +0200 From: Borislav Petkov To: Johannes Hirte Cc: Jacob Shin , linux-kernel@vger.kernel.org, Jacob Shin Subject: Re: early microcode on amd is broken when no initramfs provided Message-ID: <20130710073049.GA15525@pd.tnic> References: <20130709183601.5d567a83@fem.tu-ilmenau.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20130709183601.5d567a83@fem.tu-ilmenau.de> 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 Tue, Jul 09, 2013 at 06:36:01PM +0200, Johannes Hirte wrote: > When CONFIG_MICROCODE_EARLY is enabled on AMD but no initramfs is provided in the > bootmanager (grub2), the system hangs here: Hmm, I can't reproduce it here. grub2 entry is: menuentry 'Debian GNU/Linux, with Linux 3.10.0+' --class debian --class gnu-linux --class gnu --class os { load_video insmod gzio insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set=root adbbd17b-6e04-4458-814f-9a2b75a4d91e echo 'Loading Linux 3.10.0+ ...' linux /boot/vmlinuz-3.10.0+ root=/dev/sda1 ro resume=/dev/sda2 ignore_loglevel } Kernel is: v3.10-8587-g496322b .config settings are: $ zgrep -E "(INITRD|MICROCODE)" /proc/config.gz CONFIG_BLK_DEV_INITRD=y CONFIG_MICROCODE=y CONFIG_MICROCODE_INTEL=y CONFIG_MICROCODE_AMD=y CONFIG_MICROCODE_OLD_INTERFACE=y CONFIG_MICROCODE_INTEL_LIB=y CONFIG_MICROCODE_INTEL_EARLY=y CONFIG_MICROCODE_AMD_EARLY=y CONFIG_MICROCODE_EARLY=y # CONFIG_ACPI_INITRD_TABLE_OVERRIDE is not set Can you send me your .config and your grub entry please? Thanks. -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. --