ATAng problems

Since ATAng was comitted I've had problems with the disk on
which my root filesystem is residing.

If I choose 'Safe mode' in the boot menu, it will boot but
it is then running with DMA and write caching disabled.

This is the dmesg output from a failed boot. If anything
else is needed to figure it out, just tell me what to do.

Thanks.

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-CURRENT #4: Sat Sep  6 18:25:16 CEST 2003
    root_at_cardassian.borderworlds.dk:/usr/obj/usr/src/sys/GENERIC
Preloaded elf kernel "/boot/kernel/kernel" at 0xc0755000.
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc07551cc.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD-K6(tm) 3D processor (501.14-MHz 586-class CPU)
  Origin = "AuthenticAMD"  Id = 0x58c  Stepping = 12
  Features=0x8021bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,PGE,MMX>
  AMD Features=0x80000800<SYSCALL,3DNow!>
real memory  = 134201344 (127 MB)
avail memory = 122548224 (116 MB)
K6-family MTRR support enabled (2 registers)
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <ASUS   P5A     > on motherboard
pcibios: BIOS version 2.10
Using $PIR table, 8 entries at 0xc00f0ca0
acpi0: power button is handled as a fixed feature programming model.
Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0xec08-0xec0b on acpi0
acpi_cpu0: <CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib0: slot 11 INTA is routed to irq 11
agp0: <Ali M1541 host to AGP bridge> mem 0xe0000000-0xe3ffffff at device 0.0 on pci0
pcib1: <PCI-PCI bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <display, VGA> at device 0.0 (no driver attached)
pci0: <bridge, PCI-unknown> at device 3.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
xl0: <3Com 3c905C-TX Fast Etherlink XL> port 0xb800-0xb87f mem 0xde800000-0xde80007f irq 11 at device 11.0 on pci0
xl0: Ethernet address: 00:50:da:3d:ec:df
miibus0: <MII bus> on xl0
xlphy0: <3c905C 10/100 internal PHY> on miibus0
xlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
atapci0: <AcerLabs Aladdin UDMA33 controller> port 0xb400-0xb40f at device 15.0 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata0: [MPSAFE]
ata1: at 0x170 irq 15 on atapci0
ata1: [MPSAFE]
fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> port 0x3f7,0x3f2-0x3f5 irq 6 drq 2 on acpi0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
ppc0 port 0x378-0x37f irq 7 on acpi0
ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
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
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A, console
sio1 port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
orm0: <Option ROMs> at iomem 0xc8000-0xc87ff,0xc0000-0xc7fff on isa0
pmtimer0 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x100>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounter "TSC" frequency 501137889 Hz quality 800
Timecounters tick every 10.000 msec
GEOM: create disk ad0 dp=0xc1989970
ad0: 9768MB <ST310014A> [19846/16/63] at ata0-master UDMA33
ad0: WARNING - READ_DMA recovered from missing interrupt
acd0: CDROM <TOSHIBA CD-ROM XM-6502B> at ata1-master PIO4
Mounting root from ufs:/dev/ad0s4a
setrootbyname failed
ffs_mountroot: can't find rootvp
Root mount failed: 6

Manual root filesystem specification:
  <fstype>:<device>  Mount <device> using filesystem <fstype>
                       eg. ufs:da0s1a
  ?                  List valid disk boot devices
  <empty line>       Abort manual input

mountroot> 

-- 
Best regards
    Christian Laursen