From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932310AbXAONK1 (ORCPT ); Mon, 15 Jan 2007 08:10:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932313AbXAONK1 (ORCPT ); Mon, 15 Jan 2007 08:10:27 -0500 Received: from public.id2-vpn.continvity.gns.novell.com ([195.33.99.129]:34303 "EHLO public.id2-vpn.continvity.gns.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932310AbXAONK1 (ORCPT ); Mon, 15 Jan 2007 08:10:27 -0500 Message-Id: <45AB8BB1.76E4.0078.0@novell.com> X-Mailer: Novell GroupWise Internet Agent 7.0.1 Date: Mon, 15 Jan 2007 13:12:01 +0000 From: "Jan Beulich" To: "Martin Bretschneider" Cc: , , Subject: Re: new HW RNG freezes kernels > 2.6.17 at startup with Xeon 5130 References: <45AB6E8C.4090408@imr.uni-hannover.de> In-Reply-To: <45AB6E8C.4090408@imr.uni-hannover.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org A patch was sent out to (hopefully) address this problem (or at least allow you to work around it), which had been reported for a similar machine before. The patch is present in 2.6.20-rc5. Jan >>> Martin Bretschneider 15.01.07 13:07 >>> Hi, it seems to me that the new hardware random number generator (HW RNG) freezes my hardware: The CPU is Intel Xeon 5130 (Intel Core microarchitecture) [1] installed on Intel Server Board S5000VSA. Linux is run in 64bit mode and the distribution is Debian Etch (but that should not matter). If I take Debian's kernel 2.6.17 it boots :-) If I take vanilla kernel 2.6.17.9 it boots :-) If I take Debian's kernel 2.6.18 it does not boot. If I take vanilla kernel 2.6.18.6 it does not boot. If I take vanilla kernel 2.6.19.1 it does not boot. If I take vanilla kernel 2.6.20-rc4 it does not boot. There was no error thus it was not that easy to find out the problem. Comparing the boot logs of 2.6.17 and 2.6.18 the freeze ocurred before initializing the hardware random number generator. Thus I recompiled the vanilla Kernel 2.6.18.6 without support of the new HW RNG and it boots. So, I renamed the directory /kernel/drivers/char/hw_random and the Debian kernel 2.6.18 does also boot. I have not testet the kernel > 2.6.18 but I guess that they will also boot without the new NW RNG. Do you know the problem? Can I provide you more information? TIA Martin [1]http://en.wikipedia.org/wiki/List_of_Intel_Xeon_microprocessors#Woodcrest