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Date:      Thu, 20 May 1999 08:53:50 +0200
From:      "Loic Mahe'" <mahe@twam.com>
To:        freebsd-hardware@freebsd.org
Subject:   Problem with wt0
Message-ID:  <3743B17E.4FA9918F@twam.com>

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Hello,

I've just installed an old wt0 tape drive (Tandberg Data) for
QIC-02 tapes on my FreeBSD 3.1. The controller is a V551 card.
The drive is recognized at boot time :
> wt0 at 0x300-0x301 irq 5 drq 1 on isa
> wt0: type <Wangtek>

But, if I try to use it with tar :
tar -cvf /dev/rwt0 <directory> (or /dev/rwt0d since I
use 150 Mb tapes), the tape drive seems to freeze after a
few minutes of saving (the prompt doesn't come back) and stays
quiet. I have to remove the tape to release the prompt (even
kill can't supress the process).

Once, the following message even came out, when I tried to
read the (incomplete) archive I had just made :
> /kernel: wt0: Block not located
and the entire FreeBSD system simply *crashed* (in fact
I found the message in /var/log/messages after reboot) !!

On the opposite, if I try to save only a small directory,
tar seems to work well.

Is the tape drive damaged (it's hard for me to believe
that a damaged drive could make the system crash, but ...),
or the wt driver broken, or am I using the wrong device
(between /dev/rwt0 or /dev/rwt0d) ?

Thanks in advance (reply by mail please)

Loic, Toulouse/France


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