<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7650.21"> <TITLE>Re: RHEL 4 AS 64-bit and AMD Opteron 250 - issue whilst</TITLE> </HEAD> <BODY>  Date: Wed, 08 Mar 2006 13:08:09 -0800 From: Rick Stevens <rstevens@vitalstream.com> Subject: Re: RHEL 4 AS 64-bit and AMD Opteron 250 - issue whilst installing To: Getting started with Red Hat Linux <redhat-install-list@redhat.com> Message-ID: <1141852089.890.271.camel@prophead.corp.publichost.com> Content-Type: text/plain On Wed, 2006-03-08 at 12:55 +0100, Thronicke, Klaus-Peter wrote: >> Tried to install RHEL 4 AS 64-bit on a system with 2 AMD >> Opteron 250 CPUs without success. >> >> Whilst installing, shortly after loading the SATA-driver a get a >> kernel panic >> >> Pci: high address but no iomu >> >> >> Installing RHEL 4 AS 32-bit on the same system works fine. >> >> Installing RHEL 4 AS 64-bit on a similar system, but with 2 AMD >> Opteron 248 CPUs worked also well. >> >> Any advice is welcome > That sounds like a BIOS issue on your motherboard, Klaus. Make sure > the Opteron 250 board has the latest version of the BIOS installed. > ---------------------------------------------------------------------- > - Rick Stevens, Senior Systems Engineer rstevens@vitalstream.com - > - VitalStream, Inc. <A HREF="http://www.vitalstream.com">http://www.vitalstream.com</A> - > - - > - Never test for an error condition you don't know how to handle. - > ---------------------------------------------------------------------- Thx for the hint , Rick. BIOS looks quite fresh - (the box comes quite new direct from FSC. Phoenix Trusted Core Server Version: 1-05-1818 Build Time: 12/20/2005 11:07:30 Would it be a good idea to install 32-bit kernel first. And when the machine is up, to add 64-bit kernel ? When booting with RHEL 4 AS Install-DVD for 64 bit AMD64 and Intel EM64T I see: …. Running sbin loader Loading sata_nv driver Kernel panic - not syncing: PCI-DMA: high address but no IOMU. ( for information: system has 8 GB memory) When running with FC4 32-bit /proc/cpuinfo looks quite well cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 37 model name : AMD Opteron(tm) Processor 250 stepping : 1 cpu MHz : 2411.006 cache size : 1024 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 clflush mmx fxsr sse sse2 syscall nx mmxext lm 3dnowext 3dnow pni ts bogomips : 4767.74 processor : 1 vendor_id : AuthenticAMD cpu family : 15 model : 37 model name : AMD Opteron(tm) Processor 250 stepping : 1 cpu MHz : 2191.868 cache size : 1024 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 clflush mmx fxsr sse sse2 syscall nx mmxext lm 3dnowext 3dnow pni ts bogomips : 4816.89 Any advice is welcome :) klaus-peter </BODY> </HTML>