From owner-freebsd-questions Wed Jan 18 14:05:18 1995 Return-Path: questions-owner Received: (from root@localhost) by freefall.cdrom.com (8.6.9/8.6.6) id OAA27564 for questions-outgoing; Wed, 18 Jan 1995 14:05:18 -0800 Received: from ddg.com (EUNUCH.DDG.COM [199.183.109.237]) by freefall.cdrom.com (8.6.9/8.6.6) with ESMTP id OAA27539 for ; Wed, 18 Jan 1995 14:05:10 -0800 Received: from [128.83.128.57] by ddg.com with SMTP (MailShare 1.0b8); Wed, 18 Jan 1995 16:04:33 -0600 X-Sender: awd@eunuch.ddg.com Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Wed, 18 Jan 1995 16:04:44 -0600 To: hardware@FreeBSD.org, questions@FreeBSD.org From: awd@ddg.com (Andrew W. Donoho) Subject: Re: ep Driver and the 3c509B-TPO Cc: awd@ddg.com Sender: questions-owner@FreeBSD.org Precedence: bulk >Roger and FreeBSD folks, > >You wrote: >>You should be able to boot DOS and run the 3C5X9cfg.exe program >>and disable auto-sensing; you can select whether you want the >>AUI, TP, or Coax on combos; or AUI/TP, AUI/Coax on other cards. > >Thanks for the suggestion... > >I tried that but since this card only supports 10baseT, the Autosensing is >permanently on. The config program you suggested will not allow me to >change that setting. I have just gotten off of the phone with 3com tech support (impressive support for a $99.00 board). We jointly discovered a way to get around their limitations for the Autosensing. You do it by saving your current settings to a .set file and then edit with a text editor. When you reload it, it doesn't bother to "validity check" the input. If there is interest, I would be happy to provide my settings file to the net. Once this has been done, the card is identified and apparently turned on... The install floppy kernel then crashes with a "Fatal Trap 12: page fault while in kernel mode" fault virtual address = 0x6d6d6d6d fault code = supervisor read, page not present instruction pointer = 0x8:0xf010bb91 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 = 0 (swapper) interrupt mask = net tty panic: page fault So when I reset the autosensing function, the kernel no longer crashes but I'm back to the system booting but not using the card. The initial boot does not find it but allows you to specify it when it gets to the network install phase. So, I now think that we have a problem with the fact that the 3c509b card has twice the buffer space of the previous edition (4K -> 8K). Anybody else seeing these problems??? Andrew Donoho awd@ddg.com