From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762992AbYD0X4R (ORCPT ); Sun, 27 Apr 2008 19:56:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752038AbYD0Xz7 (ORCPT ); Sun, 27 Apr 2008 19:55:59 -0400 Received: from mtaout02-winn.ispmail.ntl.com ([81.103.221.48]:27869 "EHLO mtaout02-winn.ispmail.ntl.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752602AbYD0Xz6 convert rfc822-to-8bit (ORCPT ); Sun, 27 Apr 2008 19:55:58 -0400 Date: Mon, 28 Apr 2008 00:55:54 +0100 From: Ken Moffat To: Bart Van Assche Cc: Sergio Luis , LKML Subject: Re: 2.6.25 slow boot/reboot Message-ID: <20080427235554.GA28344@deepthought> References: <48141111.7010605@larces.uece.br> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.12-2006-07-14 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Apr 27, 2008 at 05:23:57PM +0200, Bart Van Assche wrote: > On Sun, Apr 27, 2008 at 7:37 AM, Sergio Luis wrote: > > This weekend I got some time and decided to try out 2.6.25, but its booting process was _really_ slow in my laptop[1]. With 'old' 2.6.24.5 my machine would take about 48 secs until it gave me the login prompt. And it would take about 22 seconds to reboot. > > Do you use LILO or GRUB for booting ? 2.6.25 works OK on the systems I > tested, but LILO really needs a lot of time to load the 2.6.25 kernel. > GRUB loads the 2.6.25 kernel at normal speed. > > Bart. ISTR that an _old_ version of lilo was mentioned earlier in this thread. As a datapoint, on my one desktop box which uses lilo (an athlon64 uniprocessor) both 32 and 64-bit 2.6.25 kernels boot fine. Both of those systems are with lilo-22.8, and gcc-4.2.2. But, I think you (Bart) haven't said which version of lilo you are using ? If it isn't recent, perhaps upgrading it might help ? For Sergio, you have my sympathy. I totally failed to bisect my own problem with 2.6.25-rc (and 2.6.24.1), although I did find the problem by other means, and got a work-around, so I'm not competent to diagnose what is wrong, but maybe I can help to tease out what is different about your box. As a start, you could try diffing your config's for 2.6.24.5 and 2.6.25 in case something odd has changed. Or, perhaps this is a problem specific to a certain processor ? So far, I think all the list knows is that you have a problem, and an old version of lilo. More data might eventually help to identify what is causing this. If you have a fairly old version of lilo, maybe you also have an old version of gcc ? For Bart too, which version(s) of gcc are you using on the systems where lilo is slow to load, and which cpu(s) do you have there ? Ken, who relies on lilo for his server, and gets worried by reports of trouble with it. -- das eine Mal als Tragödie, das andere Mal als Farce