In servalan.mailinglist.fbsd-current David Malone writes:

>On Wed, Aug 29, 2001 at 07:58:59PM -0700, Mike Smith wrote:
>>  - The PnP BIOS is disabled and onboard peripherals are detected
>>    using ACPI, and attach to ACPI and not isa.

>With the ACPI module loaded I find that ed0, fdc0 and pca0 are no
>longer detected (well, fdc0 is detected but gives an error). I have
>the most recent BIOS installed and it doesn't seem to make any
>difference if I twiddle BIOS settings.  Could this have something
>to do with hints, or where should I be looking for the problem?

I'm seeing similar behavior, with fdc0 not functioning properly and giving
the following stuff in dmesg.  Note the 'fdc0: cmd 3 failed at out byte 1 of 3'
messages; the kernel never seems to properly detect floppy drive 0.  This
is on a Tyan Thunder 100GX motherboard. It's not got the most current rev. of
the BIOS, but I'm somewhat reluctant to try flashing a newer BIOS unless I'm
sure the lossage is in the BIOS and not in the FreeBSD kernel.  (Alas, 
trying the newer BIOS may be the only way to find out for sure.) 

Copyright (c) 1992-2001 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 5.0-CURRENT #1: Sat Sep  1 21:43:41 CDT 2001
    [EMAIL PROTECTED]:/usr/src/sys/i386/compile/ICHOTOLOTSMP
Timecounter "i8254"  frequency 1193182 Hz
CPU: Pentium II/Pentium II Xeon/Celeron (400.91-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x653  Stepping = 3
real memory  = 134152192 (131008K bytes)
avail memory = 124178432 (121268K bytes)
Programming 24 pins in IOAPIC #0
IOAPIC #0 intpin 2 -> irq 0
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
 cpu0 (BSP): apic id:  0, version: 0x00040011, at 0xfee00000
 cpu1 (AP):  apic id:  1, version: 0x00040011, at 0xfee00000
 io0 (APIC): apic id:  2, version: 0x00170011, at 0xfec00000
Preloaded elf kernel "kernel" at 0xc0633000.
Preloaded elf module "acpi.ko" at 0xc063309c.
Pentium Pro MTRR support enabled
WARNING: Driver mistake: destroy_dev on 154/0
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <TYANCP TYANTBLE> on motherboard
acpi0: power button is handled as a fixed feature programming model.
Timecounter "ACPI"  frequency 3579545 Hz
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
acpi_cpu0: <CPU> on acpi0
acpi_cpu1: <CPU> on acpi0
acpi_tz0: <thermal zone> on acpi0
acpi_pcib0: <Host-PCI bridge> port 0xcf8-0xcff on acpi0
IOAPIC #0 intpin 19 -> irq 2
IOAPIC #0 intpin 16 -> irq 10
pci0: <PCI bus> on acpi_pcib0
pcib1: <PCI-PCI bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <display, VGA> at 0.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> port 0xffa0-0xffaf at device 7.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0xef80-0xef9f irq 2 at device 
7.2 on pci0
usb0: <Intel 82371AB/EB (PIIX4) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
ums0: Cypress Sem PS2/USB Browser Combo Mouse, rev 1.00/4.9c, addr 2, iclass 3/1
ums0: 5 buttons and Z dir.
Timecounter "PIIX"  frequency 3579545 Hz
pci0: <bridge, PCI-unknown> at 7.3 (no driver attached)
pcib2: <PCI-PCI bridge> at device 16.0 on pci0
pci2: <PCI bus> on pcib2
fxp0: <Intel Pro 10/100B/100+ Ethernet> port 0xef40-0xef5f mem 
0xfea00000-0xfeafffff,0xfc4ff000-0xfc4fffff irq 2 at device 17.0 on pci0
fxp0: Ethernet address 00:e0:81:10:47:b2
inphy0: <i82555 10/100 media interface> on miibus0
inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
ahc0: <Adaptec aic7895 Ultra SCSI adapter> port 0xe400-0xe4ff mem 
0xfebfe000-0xfebfefff irq 10 at device 18.0 on pci0
aic7895C: Ultra Wide Channel A, SCSI Id=7, 32/255 SCBs
ahc1: <Adaptec aic7895 Ultra SCSI adapter> port 0xe800-0xe8ff mem 
0xfebff000-0xfebfffff irq 10 at device 18.1 on pci0
aic7895C: Ultra Wide Channel B, SCSI Id=7, 32/255 SCBs
fdc0: cmd 3 failed at out byte 1 of 3
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A
sio1 port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
ppc0 port 0x378-0x37f irq 7 on acpi0
ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
ppc1: cannot reserve I/O port range
fdc0: cmd 3 failed at out byte 1 of 3
ppc1: cannot reserve I/O port range
orm0: <Option ROMs> at iomem 0xc0000-0xc87ff,0xcc000-0xd07ff on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
ppc1: cannot reserve I/O port range
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sbc0: <Creative ViBRA16X> at port 0x220-0x22f,0x330-0x331,0x388-0x38b irq 5 drq 1,3 on 
pcm0: <SB16 DSP 4.16 (ViBRA16X)> on sbc0
APIC_IO: Testing 8254 interrupt delivery
APIC_IO: routing 8254 via IOAPIC #0 intpin 2
DUMMYNET initialized (010124)
IP packet filtering initialized, divert disabled, rule-based forwarding disabled, 
default to deny, logging disabled
IPsec: Initialized Security Association Processing.
Waiting 15 seconds for SCSI devices to settle
acpi_cpu0: set speed to 100.0%
acpi_cpu: CPU throttling enabled, 8 steps from 100% to 12.5%
acpi_tz0: _AC0: temperature 3072 > setpoint 3052
acpi_tz0: switched from _AC-1 to _AC0
sa0 at ahc0 bus 0 target 0 lun 0
sa0: <SONY SDT-7000 0300> Removable Sequential Access SCSI-2 device 
sa0: 10.000MB/s transfers (10.000MHz, offset 15)
da0 at ahc1 bus 0 target 2 lun 0
da0: <QUANTUM ATLAS IV 9 WLS 0707> Fixed Direct Access SCSI-3 device 
da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing Enabled
da0: 8761MB (17942584 512 byte sectors: 255H 63S/T 1116C)
da1 at ahc1 bus 0 target 4 lun 0
da1: <QUANTUM ATLAS_V_18_WLS 0230> Fixed Direct Access SCSI-3 device 
da1: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing Enabled
da1: 17510MB (35861388 512 byte sectors: 255H 63S/T 2232C)
Mounting root from ufs:/dev/da0s2a
cd0 at ahc0 bus 0 target 3 lun 0
cd0: <YAMAHA CRW8424S 1.0g> Removable CD-ROM SCSI-2 device 
cd0: 20.000MB/s transfers (20.000MHz, offset 15)
cd0: Attempt to query device size failed: NOT READY, Medium not present - tray closed
SMP: AP CPU #1 Launched!

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