From owner-freebsd-hackers Mon May 21 11:35:36 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from dns1.ahaza.com (maitai.ahaza.com [209.180.220.98]) by hub.freebsd.org (Postfix) with ESMTP id 5067037B43C for ; Mon, 21 May 2001 11:35:33 -0700 (PDT) (envelope-from twiess@ahaza.com) Received: from relay.ux.ahaza.com ([209.180.221.130]) by dns1.ahaza.com (8.11.1/8.11.1) with ESMTP id f4LIZVF71363 for ; Mon, 21 May 2001 11:35:33 -0700 (PDT) (envelope-from twiess@ahaza.com) Received: from eunice.camelot.ahaza.com (eunice.camelot.ahaza.com [172.16.30.18]) by relay.ux.ahaza.com (8.11.1/8.11.1) with ESMTP id f4LIZVq42179 for ; Mon, 21 May 2001 11:35:31 -0700 (PDT) (envelope-from twiess@ahaza.com) Received: from akira.ahaza.com ([172.16.30.230]) by eunice.camelot.ahaza.com with Microsoft SMTPSVC(5.0.2195.1600); Mon, 21 May 2001 11:32:10 -0700 Date: Mon, 21 May 2001 11:38:35 +0000 (GMT) From: Tim Wiess X-X-Sender: To: Subject: 4GB Message-ID: <20010521110007.J316-100000@akira.ahaza.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-OriginalArrivalTime: 21 May 2001 18:32:10.0344 (UTC) FILETIME=[58D52E80:01C0E224] Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hello all, I've been experiencing some major problems running FreeBSD on 4GB of memory, and I was curious if anyone has experienced this before. Bascially, the problem is that FreeBSD just won't boot. Shortly after the kernel gains control of the system, it panics... Fatal trap 12: page fault while in kernel mode mp_lock = 0000000b; cpuid = 0; lapic.id = 00000000 fault virtual address = 0xbff11000 fault code = supervisor write, page not present instruction pointer = 0x8:0xc027e48c stack pointer = 0x10:0xc03c4f30 frame pointer = 0x10:0xc03c4f3c 95 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = Idle interrupt mask = net tty bio cam <- SMP: XXX kernel: type 12 trap, code=0 Stopped at 0xc027e48c: movl %edx,0xbfc00000(,%eax,4) The IP is pointing to the pmap_map() loop. So it's clearly having problems mapping out the VM. I have yet to do any rigorous debugging, but I thought I would run this by the mailing list before I do. The system is running on a Tyan Tiger LE board with dual PIIIs (860Mhz) and 4 1GB (133Mhz) SiliconTech chips. I have tested Linux on this same configuration, and while it boots normally, it will eventually panic with a similar error once you start doing some real work. Any thoughts? thanks tim To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message