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Date:      Sat, 29 Jul 1995 09:22:26 -0700
From:      "Justin T. Gibbs" <gibbs@freefall.cdrom.com>
To:        Brad Midgley <junkmail@pht.com>
Cc:        "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com>, Gary Palmer <gary@palmer.demon.co.uk>, hackers@freebsd.org
Subject:   Re: 2.0.5-950622-SNAP on a big machine 
Message-ID:  <199507291622.JAA01368@freefall.cdrom.com>
In-Reply-To: Your message of "Sat, 29 Jul 95 10:01:38 MDT." <Pine.LNX.3.91.950729095306.12809A-100000@exodus.pht.com> 

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>
>> If the card worked fine with a previous release of FreeBSD let us assume
>> for the time being we do not have a bt946 hardware problem and let us
>> not touch that piece of hardware for fear of introducing an unknown into
>> the equation.
>
>unfortunately, there is a new thing in the equation.  The smc net card
>wouldn't work, so I popped it out, put in a 3com, and now it works.  The
>system is running now so I don't dare to poke it.  We've been running
>about 24 hours with only one (intentional) reboot so it would see the high
>32m (yay)
>
>> Check that you have the IRQ of the ed0 device assigned to the ISA bus
>> in the PCI P-n-P configuration menu of the BIOS setup for you machine.
>
>yes, both the 3com and smc I had set to irq5, which is reserved for isa in
>pnp.  As long as the 3com code is pretty solid now, I'm happy to leave it. 
>I think it's time to just cross my fingers.
>
>some asides:
>
>we do have an a2940w, but the external connector on it isn't the standard 
>"mini-50" it looks more like a "mini-68".  Do you know if I can just get 
>an adapter cable for my external (non-wide) chain?

There are wide to narrow connectors availible, but you have to be carefull
since the 2940W uses a screw on external connector.

>do scsi devices on a second controller just show up as [r]sd7-[r]sd13??
>(ie, same major device number, just incrementing the minor number?) How 
>does the machine decide which controller is first?

The devices in the scsi system can be dynamically allocated a unit number
based on the order they are probed (not necessarily related to SCSI ID),
or they can be "hardwired" to a specific unit number.  Take a look at
scsi.4 and the LINT kernel config file for details.

>
>where can I find documentation on /sbin/dset and the kernel -q option?

Whoops.  No man page.  Ugen???

--
Justin T. Gibbs
===========================================
  Software Developer - Walnut Creek CDROM
  FreeBSD: Turning PCs into workstations
===========================================



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