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From: jkh@whisker.hubbard.ie (Jordan Hubbard)
Newsgroups: comp.os.386bsd.questions
Subject: Re: FreeBSD 1.1.5R and Buslogic VLB SCSI controller?
Date: 08 Jul 1994 19:15:06 GMT
Organization: Jordan Hubbard
Lines: 32
Distribution: world
Message-ID: <JKH.94Jul8191506@whisker.hubbard.ie>
References: <2vi0l5$26h@scoob.xap.com>
NNTP-Posting-Host: whisker.hubbard.ie
In-reply-to: bing@xap.com's message of 7 Jul 1994 22:46:42 GMT
In article <2vi0l5$26h@scoob.xap.com> bing@xap.com (Bing the merciless) writes:
Reading through the *BSD FAQ and some fairly recent FreeBSD mailing-
list mail led me to believe that ioaddr 0x330 and IRQ 12 were the
way to go with the GENERICBT kernel on the kcopy_bt disk, so that's
what I've set up the controller to have since I began.
Ok, you've got the controller on the right settings.. As it says in the
README.INSTALL file, after all:
BT742 SCSI Cntlr. 0x330 12 [kcopy-bt-floppy]
So I can only conclude that you've probably not configured the card
for EISA DMA! From the /usr/src/KNOWNBUGS file:
/sys/i386/isa/bt742a.c
The Bt445S and Bt747 controllers can cause problems when ISA DMA
is selected as an option. With the EISA controller the remedy is
easy - simply turn it off using your EISA configuration utility.
With the Bt445S, which is a VLB card, you must switch the undocumented
"SW10" on "SB2" to the off position. Also note that certain revisions
of the Buslogic board (Revision C or earlier, firmware revision <3.37)
will cause DATA CORRUPTION with systems containing more than 16MB of
memory. If you find this to be the case, temporarily remove your
extra memory and contact Buslogic for an upgrade!
Let me know if you still have problems, and in the meantime, read all
the docs you can get your hands on! :-)
Jordan
--
Jordan K. Hubbard FreeBSD core team Clams are your friends