Several weeks ago I did a fresh install = of=20 4.0-RELEASE and cvsup'd

to stable on a machine using a promise ultra66 and three ultra66 drives.

A couple of days ago I started getting = these=20 messages:

Apr 30 01:04:18 fw /kernel: got bad = cookie vp=20 0xcd030e80 bp 0xc4639b08
Apr 30 01:04:49 fw /kernel: got bad cookie = vp=20 0xcd030e80 bp 0xc4693750
Apr 30 07:23:50 fw /kernel: ad4: HARD READ = ERROR=20 blk# 5359248ata2-master: WARNIN
G: WAIT_READY = active=3DATA_ACTIVE_ATA
Apr 30=20 07:23:58 fw /kernel: ad4: DMA problem fallback to PIO mode
Apr 30 = 07:24:04 fw=20 last message repeated 4 times
Apr 30 07:24:04 fw /kernel: ad4: HARD = READ=20 ERROR blk# 5359328 status=3D59 error=3D40
Apr 30 07:24:07 fw /kernel: = ad4: DMA=20 problem fallback to PIO mode
Apr 30 07:24:07 fw /kernel: ad4: HARD = READ ERROR=20 blk# 5359328 status=3D59 error=3D40
Apr 30 07:24:07 fw last message = repeated 4=20 times
May 1 21:08:04 fw /kernel: ad4: HARD READ ERROR blk# = 5359328=20 status=3D59 error=3D40
May 1 21:08:15 fw last message repeated = 4=20 times

I'm assuming the "bad cookie" is not = related to the=20 others. Can anyone

advise me about what's happening here? = I notice it=20 says it's falling back

to PIO mode. Why would that be = happening? Is the=20 hard drive failing?

What can I do to get to the bottom of=20 this?

(my complete dmesg is included = below)

Thanks,

Bruce DeVault

InTech Software

---

Copyright (c) 1992-2000 The FreeBSD=20 Project.
Copyright (c) 1982, 1986, 1989, 1991,=20 1993
The Regents of the = University=20 of California. All rights reserved.
FreeBSD 4.0-STABLE #0: Tue Apr 18 = 12:58:38 CDT 2000
root@f= w.intechsoft.net:/usr/src/sys/compile/INTECH
Timecounter=20 "i8254" frequency 1193182 Hz
CPU: AMD-K6(tm) 3D processor = (350.80-MHz=20 586-class CPU)
Origin =3D "AuthenticAMD" Id =3D = 0x58c Stepping=20 =3D 12
=20 Features=3D0x8021bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,PGE,MMX>
&nbs= p; AMD=20 Features=3D0x80000800<SYSCALL,3DNow!>
real memory =3D = 167772160=20 (163840K bytes)
avail memory =3D 158687232 (154968K = bytes)
Preloaded elf=20 kernel "kernel" at 0xc03d5000.
md0: Malloc disk
npx0: <math=20 processor> on motherboard
npx0: INT 16 interface
pcib0: = <Host to PCI=20 bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib2: = <VIA=20 82C598MVP (Apollo MVP3) PCI-PCI (AGP) bridge> at ata0: at 0x1f0 irq = 14 on=20 atapci0
ahc0: <Adaptec 2940 Ultra SCSI adapter> port = 0xc800-0xc8ff mem=20 0xde020000-0xde02
0fff irq 10 at device 8.0 on pci0
ahc0: aic7880 = Wide=20 Channel A, SCSI Id=3D7, 16/255 SCBs
atapci1: <Promise ATA66 = controller>=20 port = 0xdc00-0xdc3f,0xd800-0xd803,0xd400-0xd4
07,0xd000-0xd003,0xcc00-0xcc07= =20 mem 0xde000000-0xde01ffff irq 15 at device 9.0 on
pci0
ata2: = at=20 0xcc00 on atapci1
ata3: at 0xd400 on atapci1
rl0: <RealTek 8139 = 10/100BaseTX> port 0xe000-0xe0ff mem 0xde021000-0xde0210ff ir
q 11 = at=20 device 10.0 on pci0
rl0: Ethernet address: = 00:48:54:63:57:13
miibus0:=20 <MII bus> on rl0
rlphy0: <RealTek internal media = interface> on=20 miibus0
rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, = auto
rl0: supplying EUI64: 00:48:54:ff:fe:63:57:13
pcib1: <Host = to PCI=20 bridge> on motherboard
pci2: <PCI bus> on pcib1
fdc0: = <NEC=20 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on = isa0
fdc0: FIFO=20 enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 = drive=20 0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on=20 isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
device 1.0 on=20 pci0
pci1: <PCI bus> on pcib2
isab0: <VIA 82C586 PCI-ISA=20 bridge> at device 7.0 on pci0
isa0: <ISA bus> on = isab0
atapci0:=20 <VIA 82C586 ATA33 controller> port 0xc000-0xc00f at device 7.1 on=20 pci0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem = 0xa0000-0xbffff=20 on isa0
sc0: <System console> on isa0
sc0: VGA <16 = virtual=20 consoles, flags=3D0x200>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 = on=20 isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on = isa0
sio1:=20 type 16550A
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on=20 isa0
ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
ppi0:=20 <Parallel I/O> on ppbus0
lpt0: <Printer> on = ppbus0
lpt0:=20 Interrupt-driven port
plip0: <PLIP network interface> on = ppbus0
ed1:=20 <D-Link DE-220P PnP ISA Card> at port 0x240-0x25f irq 5 on = isa0
ed1:=20 address 00:50:ba:a7:e3:59, type NE2000 (16 bit)
ahc0: Someone reset = channel=20 A
IP packet filtering initialized, divert enabled, rule-based = forwarding=20 disabled,
default to deny, unlimited logging
ad4: 39082MB = <Maxtor=20 54098U8> [79406/16/63] at ata2-master using UDMA66
ad6: 32634MB=20 <IBM-DPTA-373420> [66305/16/63] at ata3-master using = UDMA66
ad7:=20 32634MB <IBM-DPTA-373420> [66305/16/63] at ata3-slave using=20 UDMA66
acd0: CDROM <ATAPI 44X CDROM> at ata0-master using=20 PIO4
Waiting 15 seconds for SCSI devices to settle
sa0 at ahc0 bus = 0=20 target 2 lun 0
sa0: <TANDBERG MLR1 0318> Removable Sequential = Access=20 SCSI-2 device
sa0: 40.000MB/s transfers (20.000MHz, offset 8,=20 16bit)
Mounting root from ufs:/dev/ad4s1a
rl0: starting DAD for=20 fe80:0001::0248:54ff:fe63:5713
ed1: starting DAD for=20 fe80:0003::0250:baff:fea7:e359
rl0: DAD complete for=20 fe80:0001::0248:54ff:fe63:5713 - no duplicates found
ed1: DAD = complete for=20 fe80:0003::0250:baff:fea7:e359 - no duplicates found
got bad cookie = vp=20 0xcd109bc0 bp 0xc465bcd8
got bad cookie vp 0xccf56dc0 bp = 0xc4689870
got=20 bad cookie vp 0xcd050de0 bp 0xc4637c48
got bad cookie vp 0xcd09a2e0 = bp=20 0xc46387d0
got bad cookie vp 0xcd3919e0 bp 0xc466b7f8
got bad = cookie vp=20 0xcd3eec00 bp 0xc4668db0
got bad cookie vp 0xcd3eec00 bp = 0xc4638ba8
arp:=20 192.168.1.3 moved from 00:10:5a:86:72:41 to 00:a0:4b:07:4a:ab on = rl0
arp:=20 192.168.1.3 moved from 00:a0:4b:07:4a:ab to 00:10:5a:86:72:41 on = rl0
got bad=20 cookie vp 0xcd030e80 bp 0xc4639b08
got bad cookie vp 0xcd030e80 bp=20 0xc4693750
ad4: HARD READ ERROR blk# 5359248ata2-master: WARNING: = WAIT_READY=20 active=3DATA_ACT
IVE_ATA
ad4: DMA problem fallback to PIO = mode
ad4: DMA=20 problem fallback to PIO mode
ad4: DMA problem fallback to PIO = mode
ad4:=20 DMA problem fallback to PIO mode
ad4: DMA problem fallback to PIO=20 mode
ad4: HARD READ ERROR blk# 5359328 status=3D59 error=3D40
ad4: = DMA problem=20 fallback to PIO mode
ad4: HARD READ ERROR blk# 5359328 status=3D59=20 error=3D40
ad4: HARD READ ERROR blk# 5359328 status=3D59 = error=3D40
ad4: HARD=20 READ ERROR blk# 5359328 status=3D59 error=3D40
ad4: HARD READ ERROR = blk# 5359328=20 status=3D59 error=3D40
ad4: HARD READ ERROR blk# 5359328 status=3D59=20 error=3D40
ad4: HARD READ ERROR blk# 5359328 status=3D59 = error=3D40
ad4: HARD=20 READ ERROR blk# 5359328 status=3D59 error=3D40
ad4: HARD READ ERROR = blk# 5359328=20 status=3D59 error=3D40
ad4: HARD READ ERROR blk# 5359328 status=3D59=20 error=3D40
ad4: HARD READ ERROR blk# 5359328 status=3D59 = error=3D40
got bad=20 cookie vp 0xcd0da160 bp 0xc4665408

---

$ df -k
Filesystem =20 1K-blocks     Used    Avail = Capacity =20 Mounted on
/dev/ad4s1a    127023   =20 28371    88491    24%   =20 /
/dev/ad4s1e   2032623   789483 =20 1080531    42%    = /usr
/dev/ad4s1g  =20 1016303     5172   = 929827    =20 1%    /var
/dev/ad4s1h  =20 1016303        3  =20 934996     0%   =20 /tmp
/dev/ad4s1d   1953375   239960 =20 1557145    13%    = /home
/dev/ad4s1f =20 32389024 20726675 9071228    70%   =20 /backup
/dev/ad6s1e 32389528     3353=20 29795013     0%   =20 /backup2
/dev/ad7s1e = 32389528       =20 1 29798365     0%   =20 /backup3
procfs         &= nbsp;   =20 4       =20 4        0   = 100%   =20 /proc