From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 103351] Machine check exception on Broadwell quad-core with SpeedStep enabled Date: Wed, 14 Oct 2015 15:23:45 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Received: from mail.kernel.org ([198.145.29.136]:51055 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753156AbbJNPXu (ORCPT ); Wed, 14 Oct 2015 11:23:50 -0400 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 13E0D20938 for ; Wed, 14 Oct 2015 15:23:49 +0000 (UTC) Received: from bugzilla2.web.kernel.org (bugzilla2.web.kernel.org [172.20.200.52]) by mail.kernel.org (Postfix) with ESMTP id 1BC802098D for ; Wed, 14 Oct 2015 15:23:48 +0000 (UTC) In-Reply-To: Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: linux-pm@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=103351 Fredrik Atmer changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |fredrik+kernel@atmer.se --- Comment #57 from Fredrik Atmer --- First, thank you, thank you, thank you =) I've had my setup i5-5675C on an Asus H97I-Plus motherboard for some time now. It's not until now that it actually "works". I was afraid something was broken in my system due to random crashes. I first tried to install Ubuntu 15.04, but the installer kept crashing. So I tried 14.04 which worked. Turns out I needed 14.10 for the Intel graphic drivers. That worked as well. Well, Unity didn't, and I kind of like it.. So I've been running Metacity since, with the few random crashes. Then I just realized 14.10 is no more. Then at 3:30 AM I find this thread. I did sleep first, but the day after I was able to do a dist-upgrade of my 14.10 system to 15.04 using the 0x12 microcode (I used to have 0xd). This has to be the most haxxor I ever did. Now I'm running Unity without problems so far in 15.04, Speedstep and Turbo active. I always thought microcode was something embedded in the processor, not to be accessed from the outside world. I'm using the script from the git repository. It works, but the --persist-debian option fails to make it persistent. I don't know if I'm using it incorrectly, and I'm happy to provide more information if requested. I also tried the method with iucode-tool described above, with the same result. The install.sh script does just that, right? -- You are receiving this mail because: You are the assignee for the bug.