Problem mounting CD-ROM since 5.2-RELEASE

Mike Schreckengost mrpolitics at
Wed Jan 14 23:33:41 PST 2004

Hello everyone,
    I recently installed FreeBSD 5.2-RELEASE and can no longer mount my
DVD+RW drive. Everything was working fine under both 5.1-RELEASE and
4.9-STABLE versions of FreeBSD. The symptoms of the problem are as follows:

1) During the boot process, I (sometimes) receive the following kernel
   error message:
   "acd1: FAILURE - READ_BIG status=51<READY,DSC,ERROR> sensekey=ILLEGAL
    REQUEST error=0"

2) When I try to mount the drive, I receive the following:
   "cd9660: /dev/acd1: Input/output error"
   ... and the kernel (sometimes) prints the message appearing above in
   symptom #1.

What I've done:

1) I've tried enabling/disabling DMA for the drive using atacontrol.
2) I cvsup'ed to the latest -CURRENT as of 01/14/04. The problem still

What I have:

The DVD+RW drive is connected to a Sil0680 ATA-Medley UDMA133 controller
card. Other information can be found in the attached dmesg output. Any
help or suggestions will (of course!) be greatly appreciated.

Thanks in advance,

------- BEGIN dmesg output -------

Copyright (c) 1992-2004 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 5.2-CURRENT #0: Wed Jan 14 21:05:48 EST 2004
    root at
Preloaded elf kernel "/boot/kernel/kernel" at 0xc0a67000.
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc0a67294.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD Athlon(tm) MP 2100+ (1733.41-MHz 686-class CPU)
  Origin = "AuthenticAMD"  Id = 0x662  Stepping = 2
  AMD Features=0xc0480000<MP,AMIE,DSP,3DNow!>
real memory  = 1073217536 (1023 MB)
avail memory = 1040650240 (992 MB)
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID:  1
cpu1 (AP): APIC ID:  0
ioapic0 <Version 1.1> irqs 0-23 on motherboard
Pentium Pro MTRR support enabled
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <PTLTD   RSDT> on motherboard
pcibios: BIOS version 2.10
Using $PIR table, 14 entries at 0xc00fdee0
acpi0: Power Button (fixed)
acpi0: Sleep Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x8008-0x800b on acpi0
acpi_cpu0: <CPU> on acpi0
acpi_cpu1: <CPU> on acpi0
acpi_button0: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0x8080-0x80ff,0x8000-0x807f,0xcf8-0xcff 
iomem 0xd8000-0xdbfff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <AMD 762 host to AGP bridge> port 0x1020-0x1023 mem 
0xe6000000-0xe6000fff,0xe8000000-0xebffffff at device 0.0 on pci0
pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pci1: <display, VGA> at device 5.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <AMD 768 UDMA100 controller> port 0xf000-0xf00f at device 7.1 on 
ata0: at 0x1f0 irq 14 on atapci0
ata0: [MPSAFE]
ata1: at 0x170 irq 15 on atapci0
ata1: [MPSAFE]
pci0: <bridge, PCI-unknown> at device 7.3 (no driver attached)
atapci1: <SiI 0680 UDMA133 controller> port 
0x1010-0x101f,0x1024-0x1027,0x1028-0x102f,0x1030-0x1033,0x1038-0x103f mem 
0xe2000000-0xe20000ff irq 21 at device 9.0 on pci0
atapci1: [MPSAFE]
ata2: at 0xe2000000 on atapci1
ata2: [MPSAFE]
ata3: at 0xe2000000 on atapci1
ata3: [MPSAFE]
pcib2: <ACPI PCI-PCI bridge> at device 16.0 on pci0
pci2: <ACPI PCI bus> on pcib2
ohci0: <OHCI (generic) USB controller> mem 0xe4000000-0xe4000fff irq 19 at 
device 0.0 on pci2
usb0: OHCI version 1.0, legacy support
usb0: <OHCI (generic) USB controller> on ohci0
usb0: USB revision 1.0
uhub0: AMD OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 4 ports with 4 removable, self powered
ums0: Logitech USB Mouse, rev 1.10/6.10, addr 2, iclass 3/1
ums0: 3 buttons and Z dir.
pci2: <multimedia, audio> at device 4.0 (no driver attached)
pci2: <input device> at device 4.1 (no driver attached)
pci2: <display, VGA> at device 7.0 (no driver attached)
xl0: <3Com 3c980C Fast Etherlink XL> port 0x2000-0x207f mem 
0xe4001000-0xe400107f irq 18 at device 8.0 on pci2
xl0: Ethernet address: 00:e0:81:22:5b:f4
miibus0: <MII bus> on xl0
ukphy0: <Generic IEEE 802.3u media interface> on miibus0
ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
xl1: <3Com 3c980C Fast Etherlink XL> port 0x2080-0x20ff mem 
0xe4001400-0xe400147f irq 19 at device 9.0 on pci2
xl1: Ethernet address: 00:e0:81:22:5b:f5
miibus1: <MII bus> on xl1
ukphy1: <Generic IEEE 802.3u media interface> on miibus1
ukphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A
sio1 port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
ppc0 port 0x778-0x77f,0x378-0x37f irq 7 drq 3 on acpi0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/9 bytes threshold
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> port 
0x3f7,0x3f0-0x3f5 irq 6 drq 2 on acpi0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
orm0: <Option ROMs> at iomem 0xe0000-0xe3fff,0xcf800-0xcffff,0xcf000-0xcf7ff 
on isa0
pmtimer0 on isa0
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
Timecounters tick every 10.000 msec
GEOM: create disk ad0 dp=0xc6273d60
ad0: 114473MB <WDC WD1200BB-00CAA1> [232581/16/63] at ata0-master UDMA100
GEOM: create disk ad1 dp=0xc6301460
ad1: 114473MB <WDC WD1200JB-00CRA1> [232581/16/63] at ata0-slave UDMA100
GEOM: create disk afd0 dp=0xc644896c
afd0: REMOVABLE <IOMEGA ZIP 250 ATAPI> at ata1-master PIO3
acd0: CDRW <CD-RW IDE5232> at ata1-slave PIO4
acd1: DVDR <Memorex DVD+R/RW 2.4x8AA> at ata2-master PIO4
GEOM: create disk ad5 dp=0xc6448360
ad5: 76319MB <WDC WD800BB-00CAA0> [155061/16/63] at ata2-slave UDMA100
SMP: AP CPU #1 Launched!
Mounting root from ufs:/dev/ad0s2a

------- END dmesg output -------

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