Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 2 Apr 2001 02:49:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 2 Apr 2001 02:49:21 -0400 Received: from atacama.four-d.de ([129.247.190.4]:60678 "EHLO four-d.de") by vger.kernel.org with ESMTP id ; Mon, 2 Apr 2001 02:49:13 -0400 Date: Mon, 2 Apr 2001 08:46:47 +0200 (=?X-UNKNOWN?Q?Westeurop=E4ische_Sommerzeit?=) From: Thomas Pfaff To: Steven Walter cc: Subject: Re: 2.4.2: System clock slows down under load In-Reply-To: Message-ID: X-X-Sender: pfaff@antarctica.intern.net MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 27 Mar 2001, Steven Walter wrote: > On Tue, Mar 27, 2001 at 01:42:39PM +0200, Thomas Pfaff wrote: > > Hi all, > > > > i decided to make a test for the 2.4 kernel on my old hardware (Gigabyte > > EISA/VLB with an AMD 486 DX4 133). The kernel boots fine but there is one > > strange thing: The system clock slows down under load, after a make > > dep in the linux src directory it is about 2 minutes behind. This appears > > both in 2.4.1 and in 2.4.2 (I have not tried 2.4.0 yet). > > > > I have attached a gzipped dmesg. > > > > Any ideas ? > > I notice that you're using fbcon from your dmesg. There was a > discussion about this a while back, and it was determined that fbcon > runs with interrupts disabled for unhealthily long period of time. This > causes it to miss timer interrupts, and the system lock get behind. See > if this slowdown occurs with vgacon. If it does, its probably just a > cheap crystal on the motherboard. > > -- > -Steven > Freedom is the freedom to say that two plus two equals four. > > > You are right. If i compile with vgacon it works fine. I would be really glad if vesa fbcon in 2.4 would run without that problem like in all 2.2 kernels i have installed. It is the easiest way to get X and virtual consoles on my S3 graphic card. Thanks, Thomas - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/