From owner-freebsd-questions Sat Jan 27 15:10: 9 2001 Delivered-To: freebsd-questions@freebsd.org Received: from crunch.shivakaul.com (unknown [166.84.151.100]) by hub.freebsd.org (Postfix) with SMTP id 3F71337B400 for ; Sat, 27 Jan 2001 15:09:51 -0800 (PST) Received: (qmail 42993 invoked by uid 0); 27 Jan 2001 04:19:54 -0000 Received: from unknown (HELO taco) (192.168.0.2) by 166.84.151.100 with SMTP; 27 Jan 2001 04:19:54 -0000 Message-ID: <002f01c088b7$1a4cb000$0200a8c0@taco> From: "shivak" To: "freebsd-questions" Subject: panic w/ tape drive on 3.4 Date: Sat, 27 Jan 2001 18:15:56 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I am using an onstream 30gb tape drive (at least, i'm trying to). the machine is an old 486 running 3.4 (because 4.x doesn't have matcd support). i compiled a custom kernel with ATAPI and wst0 (the name for my tape drive). The drive gets detected on boot, etc. However, whenever I do a certain operation on the drive (like a dump, tar, or even a cat /dev/rwst0), the machine freezes with a kernel panic: Fatal Trap 18: integer divide fault while in kernel mode there are a few things which make the problem more complex - first, an op like "mt -f /dev/rwst0 fsf 1" doesn't panic. second, there is no /dev/wst0 device (although there is a /dev/rwst0), and MAKEDEV doesn't appear to *try* to make the device (when i browsed through the code, MAKEDEV only says to mknod for /dev/rwst). What could the problem be? thanks To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message