*BSD News Article 35738


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Newsgroups: comp.os.386bsd.bugs
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From: adam@veda.is (Adam David)
Subject: BT-445C not quite supported
Organization: Veda Systems, Iceland
Message-ID: <Cw0tws.4zz@veda.is>
Date: Mon, 12 Sep 1994 14:36:26 GMT
Lines: 25

I've been trying to use a BT-445C instead of a BT-445S but there are problems:

bt0: mbi at 0xf09359b4 should be found, stat=81..resync

What does this mean? The address varies each time the message occurs.
After some activity, it gets stuck in a continous loop doing:

bt0: Try to abort
bt0: Try to abort
bt0: Abort Operation timed out
bt0: Try to abort
.....
vnode pager read error 5
(various error messages from the vm system, can't flush dirty pages, etc).

Basically the controller gets hosed, but it does NOT fail with "bt0: not
accepting commands!" but instead keeps on trying although it is stuck.
The disk sounds like it is "stuck in a groove", i.e. continually scanning
the same cylinder (or so). The same disk works perfectly on an aha1542
or a BT-445S.

What is so different between the 2 BT-445 controllers?

--
Adam David  <adam@veda.is>