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	Thu, 25 Sep 1997 17:46:46 +0930 (CST)
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Date: Thu, 25 Sep 1997 17:46:46 +0930
From: Greg Lehey <grog@lemis.com>
To: shadows@whitefang.com
Cc: freebsd-questions@FreeBSD.ORG
Subject: Re: Wangtek tape drive: Kernel crashes
References: <Pine.BSF.3.95q.970925100313.214B-100000@lets.get.broken.at.whitefang.com>
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In-Reply-To: <Pine.BSF.3.95q.970925100313.214B-100000@lets.get.broken.at.whitefang.com>; from Thamer Al-Herbish on Thu, Sep 25, 1997 at 10:13:07AM +0300
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On Thu, Sep 25, 1997 at 10:13:07AM +0300, Thamer Al-Herbish wrote:
>
> Before sending this with send-pr (or whichever bug reporting channels I
> should go through). I figured it might be worth a shot asking here first,
> incase this problem has been resolved.
>
> ...
>
> This is all on a FreeBSD 2.2.1-RELEASE
>
> I have a Wangtek 5150PK Tape drive, it seems to be detected fine under the
> wt device driver. As soon as I make a read from it, the kernel dumps out
> debugging output, and reboots.

This debugging output is what we need to see.  You'll definitely need
to specify it in a send-pr.

> ...
>
> Is this a known bug? If not I'll read up on send-pr and make my bug report.

I don't know.  It doesn't ring a bell, but you need to tell us the
panic string first.  You should also take a dump.

Take a look at http://www.freebsd.org/handbook/handbook264.html#596
for more details.  Yes, it's pretty well hidden, but it's there.

Greg