From owner-freebsd-amd64@FreeBSD.ORG Mon Nov 29 21:41:44 2004 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0DA2F16A4D0 for ; Mon, 29 Nov 2004 21:41:44 +0000 (GMT) Received: from mail.jrv.org (rrcs-24-73-246-106.sw.biz.rr.com [24.73.246.106]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9E0FA43D31 for ; Mon, 29 Nov 2004 21:41:43 +0000 (GMT) (envelope-from james@jrv.org) Received: from [127.0.0.1] (zippy.housenet.jrv [192.168.3.156]) (authenticated bits=0) by mail.jrv.org (8.12.11/8.12.10) with ESMTP id iATLff2h023486; Mon, 29 Nov 2004 15:41:42 -0600 (CST) (envelope-from james@jrv.org) Message-ID: <41AB9795.7020805@jrv.org> Date: Mon, 29 Nov 2004 15:41:41 -0600 From: "James R. Van Artsalen" User-Agent: Mozilla Thunderbird 0.9 (Windows/20041103) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Steve Kargl References: <20041129211341.GA26548@troutmask.apl.washington.edu> In-Reply-To: <20041129211341.GA26548@troutmask.apl.washington.edu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-amd64@freebsd.org Subject: Re: kernel panic with greater that 8 GB of memory X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 29 Nov 2004 21:41:44 -0000 I'm not convinced that the bounce-buffer scheme works on amd64 at all. I don't think twe, ata or bge work (individually or in combination) with more than 4GB of RAM. Are you using a bge NIC or USB, or any other driver that needs bounce buffer, 1394? Which SCSI driver? Is this 5.3 release? 5.2.1 worked for me. The bounce-buffer code in amd64 has changed since then but I haven't been able to figure it out. I wonder how much memory is in Tinderbox? Steve Kargl wrote: >kmem_suballoc: bad status return of 3 >panic: kmem_suballoc >cpuid = 0 >KDB: stack backtrace: >kdb_backtrace() at kdb_backtrace+0x37 >panic() at painc+0x1d1 >kmem_suballoc() at kmem_suballoc+0x93 >kmeminit() at kmeminit+0x16d >mi_startuup() at mi_startup+0xb6 >btext90 at btext+0x2c >KDB: enter: panic >[thread pid 0 tid 0] > >This is a Tyan K8S Pro motherboard with 16 GB of PC2700 >Cosair ECC memory. The BIOS was flashed to the latest >available from Tyan. The scheduler is 4BSD. There are >no ATA devices in the system and no ATA subsystem in >the kernel. This a SCSI only box. World and kernel >were rebuilt today with CFLAGS=-O -pipe and >COPTFLAGS=-O -pipe. > >If I set hw.physmem="#G" n /boot/loader.conf where # is >less than or equal to 8 the box boots up (see dmesg below). >If # > 8, then we have the above panic. > >Any ideas where to look for the a fix? > > >