Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261345AbTINUt7 (ORCPT ); Sun, 14 Sep 2003 16:49:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261386AbTINUt7 (ORCPT ); Sun, 14 Sep 2003 16:49:59 -0400 Received: from 67-50-116-12.br1.fod.ia.frontiernet.net ([67.50.116.12]:8576 "EHLO www.duskglow.com") by vger.kernel.org with ESMTP id S261345AbTINUt5 (ORCPT ); Sun, 14 Sep 2003 16:49:57 -0400 Date: Sun, 14 Sep 2003 15:54:29 -0500 From: Russell Miller To: linux-kernel@vger.kernel.org Subject: [SUMMARY] rebooting problem solved - athlon/SiS incompatibility. Message-ID: <20030914205429.GA3535@www.duskglow.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2354 Lines: 59 Hi, As a follow up to a message that I sent earlier, I've found the reason that my machine would reboot on 2.6 kernels. It could be argued that it's no fault of the kernel, but perhaps the documentation should be updated. I traced the problem to between the gunzip() call and the startup32 call. There are very few options that affect this, obviously. Two that do are CONFIG_SMP and the coprocessor emulation option. After turning them off and rebuilding, the kernel started. It hung on ACPI, but after compiling that out of the kernel, it booted fine and I'm running it now. This is the output of lspci, to show the configuration that will cause this problem: 00:00.0 Host bridge: Silicon Integrated Systems [SiS] 730 Host (rev 02) 00:00.1 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev d0) 00:01.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513 00:01.2 USB Controller: Silicon Integrated Systems [SiS] 7001 (rev 07) 00:01.3 USB Controller: Silicon Integrated Systems [SiS] 7001 (rev 07) 00:01.4 Multimedia audio controller: Silicon Integrated Systems [SiS] SiS PCI Audio Accelerator (rev 02) 00:02.0 PCI bridge: Silicon Integrated Systems [SiS] 5591/5592 AGP 00:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139 (rev 10) 00:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139 (rev 10) 01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] SiS630 GUI Accelerator+3D (rev 31) and: processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 4 model name : AMD Athlon(tm) processor stepping : 2 cpu MHz : 902.169 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr syscall mmxext 3dnowext 3dnow bogomips : 1785.85 Which basically seems to mean: you cannot enable SMP and turn off coprocessor emulation on an SiS motherboard containing an Athlon Thunderbird processor. The kernel will not even get past the "Ok, booting the kernel" stage. --Russell - 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/