5.1-RELEASE - UDMA ICRC error - falling back to PIO mode

Thu Feb 19 09:31:13 PST 2004

I am running 5.1-RELEASE on a DELL GX150 with 512MB RAM on which I installed a new WD-1600JB IDE along
with the promise UDMA100 controller which came along with the drive.  The drive can be accessed
but the access speed is very slow and I noticed that dmesg shows the following
	ad4: UDMA ICRC error cmd=read fsbn 0 of 0-3 retrying 
This repeats and is followed by
	ad4: UDMA ICRC error cmd=read fsbn 0 of 0-3 falling back to PIO mode

I have changed the PCI slot on which the card is seated, changed cables and even hooked 
the drive directly to the mother board but the problem persists. 
The disc+controller however works ok on a wintel machine. Could it be some type of hard disc error ?

Can anyone help,

Thanks,

Rajarajan

----------- BEGIN dmesg output --------
Copyright (c) 1992-2003 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 5.1-RELEASE #0: Thu Jun  5 02:55:42 GMT 2003
    root at wv1u.btc.adaptec.com:/usr/obj/usr/src/sys/GENERIC
Preloaded elf kernel "/boot/kernel/kernel" at 0xc06d4000.
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc06d426c.
Timecounter "i8254"  frequency 1193182 Hz
Timecounter "TSC"  frequency 996769775 Hz
CPU: Intel Pentium III (996.77-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x68a  Stepping = 10
  Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
real memory  = 534802432 (510 MB)
avail memory = 512077824 (488 MB)
Pentium Pro MTRR support enabled
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <DELL   GX150  > on motherboard
pcibios: BIOS version 2.10
Using $PIR table, 11 entries at 0xc00fbb40
acpi0: power button is handled as a fixed feature programming model.
Timecounter "ACPI-fast"  frequency 3579545 Hz
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
acpi_cpu0: <CPU> on acpi0
acpi_button0: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <Intel 82815 (i815 GMCH) SVGA controller> mem 0xff000000-0xff07ffff,0xf8000000-0xfbffffff irq 9 at device 2.0 on pci0
pcib1: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci1: <ACPI PCI bus> on pcib1
atapci0: <Promise PDC20268 UDMA100 controller> port 0xecc0-0xeccf,0xecd8-0xecdb,0xece0-0xece7,0xecf0-0xecf3,0xecf8-0xecff mem 0xfdffc000-0xfdffffff irq 11 at device 9.0 on pci1
ata2: at 0xecf8 on atapci0
ata3: at 0xece0 on atapci0
xl0: <3Com 3c905C-TX Fast Etherlink XL> port 0xec00-0xec7f mem 0xfdffbc00-0xfdffbc7f irq 11 at device 12.0 on pci1
xl0: Ethernet address: 00:b0:d0:94:f2:67
miibus0: <MII bus> on xl0
ukphy0: <Generic IEEE 802.3u media interface> on miibus0
ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci1: <Intel ICH2 UDMA100 controller> port 0xffa0-0xffaf at device 31.1 on pci0
ata0: at 0x1f0 irq 14 on atapci1
ata1: at 0x170 irq 15 on atapci1
uhci0: <Intel 82801BA/BAM (ICH2) USB controller USB-A> port 0xff80-0xff9f irq 11 at device 31.2 on pci0
usb0: <Intel 82801BA/BAM (ICH2) USB controller USB-A> 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
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
uhci1: <Intel 82801BA/BAM (ICH2) USB controller USB-B> port 0xff60-0xff7f irq 11 at device 31.4 on pci0
usb1: <Intel 82801BA/BAM (ICH2) USB controller USB-B> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
pci0: <multimedia, audio> at device 31.5 (no driver attached)
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
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 on acpi0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/8 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
orm0: <Option ROMs> at iomem 0xca000-0xcbfff,0xc0000-0xc9fff on isa0
pmtimer0 on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x64,0x60 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
ad0: 19073MB <Maxtor 5T020H2> [38752/16/63] at ata0-master UDMA100
ad4: 152627MB <WDC WD1600JB-00DUA3> [310101/16/63] at ata2-master UDMA100
ad4: READ command timeout tag=0 serv=0 - resetting
ata2: resetting devices ..
done
ad4: UDMA ICRC error cmd=read fsbn 0 of 0-3 retrying
ad4: UDMA ICRC error cmd=read fsbn 0 of 0-3 retrying
ad4: UDMA ICRC error cmd=read fsbn 0 of 0-3 falling back to PIO mode
acd0: CDROM <Lite-On LTN486 48x Max> at ata1-master PIO4
Mounting root from ufs:/dev/ad0s1a

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