Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757629AbXI0QfS (ORCPT ); Thu, 27 Sep 2007 12:35:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753683AbXI0QfH (ORCPT ); Thu, 27 Sep 2007 12:35:07 -0400 Received: from SOKENS04e.snapon.com ([217.33.151.229]:40604 "EHLO sokens04.snapon.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752491AbXI0QfF (ORCPT ); Thu, 27 Sep 2007 12:35:05 -0400 Message-ID: <00e101c80124$32ef67a0$7502a8c0@snaponglobal.com> From: "Marco Tralli" To: "Juergen Beisert" , Cc: "Jordan Crouse" References: <00ab01c80114$e659d600$7502a8c0@snaponglobal.com> <200709271813.26103.juergen127@kreuzholzen.de> Subject: Re: kernel 2.6.23-rc6 hangs on Geode GX1 Date: Thu, 27 Sep 2007 18:33:45 +0200 Organization: SNAPON MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1807 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1896 X-OriginalArrivalTime: 27 Sep 2007 16:35:01.0711 (UTC) FILETIME=[59CCE5F0:01C80124] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1244 Lines: 40 Thanks Juergen, > It runs stable on 5 different GX1 systems. > > But I do not use a standard BIOS. I'm using LinuxBIOS instead. But I'm also using > these patches. > set_cx86_inc was one of performance trick called by geode_configure I didn't find any documentation about "incrementor margin" before. But since I'm running on 300MHz GX1 the default kernel is now broken for me! > --- linux-2.6.22.orig/arch/i386/kernel/cpu/cyrix.c > +++ linux-2.6.22/arch/i386/kernel/cpu/cyrix.c > @@ -169,7 +169,7 @@ static void __cpuinit set_cx86_inc(void) > setCx86(CX86_PCR1, getCx86(CX86_PCR1) | 0x02); > /* PCR0 -- Performance Control */ > /* Incrementor Margin 10 */ > - setCx86(CX86_PCR0, getCx86(CX86_PCR0) | 0x04); > + setCx86(CX86_PCR0, getCx86(CX86_PCR0) | 0x05); /* 300MHz CPU */ > setCx86(CX86_CCR3, ccr3); /* disable MAPEN */ > } > I will try your patch But again, if those tricks are so system dependent I suggest to kernel people to let disable it in default configuration. Marco - 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/