Date: Wed, 24 Jan 2001 11:04:15 +1030 From: Greg Lehey <grog@lemis.com> To: shivak <shivak@crunch.shivakaul.com> Cc: questions@freebsd.org Subject: Re: Using IDE Tape drive causes panic Message-ID: <20010124110414.A37060@wantadilla.lemis.com> In-Reply-To: <20010122013459.A28861@crunch.shivakaul.com>; from shivak@crunch.shivakaul.com on Mon, Jan 22, 2001 at 01:34:59AM -0500 References: <20010122013459.A28861@crunch.shivakaul.com>
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On Monday, 22 January 2001 at 1:34:59 -0500, shivak wrote: > 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 It's normal not to have the /dev/wst. Tapes are characeter devices, so they traditionally have the letter 'r' at the beginning of the name. As regards the panic, you're going to have to get more details here. The best thing would be a dump and a kernel with symbols. Then we can do some looking at the problem. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply. For more information, see http://www.lemis.com/questions.html Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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