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Date:      Thu, 26 Aug 2004 00:49:21 +0300
From:      Ruslan Ermilov <ru@freebsd.org>
To:        Nate Lawson <nate@root.org>
Cc:        current@freebsd.org
Subject:   Re: No more floppy drive
Message-ID:  <20040825214921.GA62984@ip.net.ua>
In-Reply-To: <412D0388.9060201@root.org>
References:  <20040825204757.GD35529@ip.net.ua> <42278.1093467451@critter.freebsd.dk> <20040825212153.GA60718@ip.net.ua> <412D0388.9060201@root.org>

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On Wed, Aug 25, 2004 at 02:24:24PM -0700, Nate Lawson wrote:
> Ruslan Ermilov wrote:
> >On a kernel compiled without "device fdc" and booted verbosely,
> >"kldload fdc" results in the following:
> >
> >: fdc0: cannot reserve I/O port range (6 ports)
>=20
> >What stuff would you like me to pepper, given the additional
> >information above?
>=20
> Please send output of devinfo -r to see who is holding something=20
> overlapping 0x3f0-0x3f5.
>=20
Nothing overlapped (I verified with "devinfo -u"), but your mail
made me think.  I keep my /boot/device.hints on this notebook
identical to GENERIC.hints.  After commenting out "fdc" lines
in /boot/device.hints:

$ diff -u /sys/i386/conf/GENERIC.hints /boot/device.hints
--- /sys/i386/conf/GENERIC.hints        Sat Apr  3 13:59:14 2004
+++ /boot/device.hints  Thu Aug 26 00:32:55 2004
@@ -1,8 +1,8 @@
 # $FreeBSD: src/sys/i386/conf/GENERIC.hints,v 1.13 2004/04/01 21:48:31 alf=
red Exp $
-hint.fdc.0.at=3D"isa"
-hint.fdc.0.port=3D"0x3F0"
-hint.fdc.0.irq=3D"6"
-hint.fdc.0.drq=3D"2"
+#hint.fdc.0.at=3D"isa"
+#hint.fdc.0.port=3D"0x3F0"
+#hint.fdc.0.irq=3D"6"
+#hint.fdc.0.drq=3D"2"
 hint.fd.0.at=3D"fdc0"
 hint.fd.0.drive=3D"0"
 hint.fd.1.at=3D"fdc0"

I got this:

$ dmesg |grep fdc
fdc0: ic_type 90 part_id 73
fdc0: <Enhanced floppy controller> at port 0x3f7,0x3f0-0x3f5 irq 6 drq 2 on=
 isa0
fdc0: ic_type 90 part_id 73
fd0: <1440-KB 3.5" drive> on fdc0 drive 0

The following now works:

1.  "kldload fdc"
2.  "kldunload fdc" says "Operation not supported".
3.  Kernel compiled with "device fdc".

All results in a working floppy.

The following still doesn't work:

"kldload fdc" on a kernel compiled with "device fdc" results in a panic.

P.S.  If I comment out two "ppc" lines in /boot/device.hints, the ppc0
attaches normally, and there's no phantom ppc1.


Cheers,
--=20
Ruslan Ermilov
ru@FreeBSD.org
FreeBSD committer

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