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Date:      Sun, 27 Feb 2000 16:41:28 +0000 (GMT)
From:      Doug Rabson <dfr@nlsystems.com>
To:        Soren Schmidt <sos@freebsd.dk>
Cc:        Sren Schmidt <sos@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/dev/ata ata-all.c
Message-ID:  <Pine.BSF.4.21.0002271639440.8714-100000@salmon.nlsystems.com>
In-Reply-To: <200002271613.RAA43235@freebsd.dk>

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On Sun, 27 Feb 2000, Soren Schmidt wrote:

> It seems Doug Rabson wrote:
> > On Sun, 27 Feb 2000, Sren Schmidt wrote:
> > 
> > > sos         2000/02/27 04:41:08 PST
> > > 
> > >   Modified files:
> > >     sys/dev/ata          ata-all.c 
> > >   Log:
> > >   Fix the problem that caused the boot to fail when modules were loaded.
> > >   
> > >   Real braino, confuses two different softc types, I wonder how this
> > >   could ever work :(
> > 
> > Actually, it was confusing two devclasses and ended up with ata_devclass
> > pointing at "atapci". This meant that lookups using ata_devclass returned
> > devices like atapci0 instead of ata0 and things went downhill fast...
> 
> That was what I meant but unclearly formulated. I still wonder how
> this could work :|

I think that we were unlucky in that when no modules were loaded, the
various registrations happened a different order which left ata_devclass
pointing at the right value. Loading modules can re-order the registration
slightly as new SYSINITs are sorted into the list.

--
Doug Rabson				Mail:  dfr@nlsystems.com
Nonlinear Systems Ltd.			Phone: +44 181 442 9037




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