APC UPS fails to attach

[c-s at c-s.li]

I have an APC Back-UPS RS 800 which fails to attach to FreeBSD Current with
the following dmesg attached. Just as a side note, this device used to work
under FreeBSD 7.2 but unfortunately I don't have any dmesg from that time
anymore. Any help is appreciated.
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Copyright (c) 1992-2009 The FreeBSD Project.
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	The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 8.0-BETA2 #3: Sat Aug  1 09:26:55 CEST 2009
    root at c-st.net:/usr/obj/usr/src/sys/c-s
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD Phenom(tm) 9550 Quad-Core Processor (2204.71-MHz K8-class CPU)
  Origin = "AuthenticAMD"  Id = 0x100f23  Stepping = 3
  Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
  Features2=0x802009<SSE3,MON,CX16,POPCNT>
  AMD Features=0xee500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM,3DNow!+,3DNow!>
  AMD Features2=0x7ff<LAHF,CMP,SVM,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,OSVW,IBS>
  TSC: P-state invariant
real memory  = 6442450944 (6144 MB)
avail memory = 5913415680 (5639 MB)
ACPI APIC Table: <RS780  GBTUACPI>
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
FreeBSD/SMP: 1 package(s) x 4 core(s)
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
 cpu2 (AP): APIC ID:  2
 cpu3 (AP): APIC ID:  3
ioapic0: Changing APIC ID to 2
ioapic0 <Version 2.1> irqs 0-23 on motherboard
kbd1 at kbdmux0
cryptosoft0: <software crypto> on motherboard
acpi0: <RS780 GBTUACPI> on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
acpi0: reservation of 0, a0000 (3) failed
acpi0: reservation of 100000, bfde0000 (3) failed
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <32-bit timer at 3.579545MHz> port 0x4008-0x400b on acpi0
acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
Timecounter "HPET" frequency 14318180 Hz quality 900
acpi_button0: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
pci1: <ACPI PCI bus> on pcib1
vgapci0: <VGA-compatible display> port 0xee00-0xeeff mem 0xd0000000-0xdfffffff,0xfdfe0000-0xfdfeffff,0xfde00000-0xfdefffff irq 18 at device 5.0 on pci1
hdac0: <ATI RS780 High Definition Audio Controller> mem 0xfdffc000-0xfdffffff irq 19 at device 5.1 on pci1
hdac0: HDA Driver Revision: 20090624_0136
hdac0: [ITHREAD]
pcib2: <ACPI PCI-PCI bridge> irq 18 at device 10.0 on pci0
pci2: <ACPI PCI bus> on pcib2
re0: <RealTek 8168/8168B/8168C/8168CP/8168D/8111B/8111C/8111CP PCIe Gigabit Ethernet> port 0xde00-0xdeff mem 0xfdaff000-0xfdafffff,0xfdae0000-0xfdaeffff irq 18 at device 0.0 on pci2
re0: Using 1 MSI messages
re0: Chip rev. 0x3c000000
re0: MAC rev. 0x00400000
miibus0: <MII bus> on re0
rgephy0: <RTL8169S/8110S/8211B media interface> PHY 1 on miibus0
rgephy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
re0: Ethernet address: 00:1f:d0:56:c4:17
re0: [FILTER]
atapci0: <ATI IXP700/800 SATA300 controller> port 0xff00-0xff07,0xfe00-0xfe03,0xfd00-0xfd07,0xfc00-0xfc03,0xfb00-0xfb0f mem 0xfe02f000-0xfe02f3ff irq 22 at device 17.0 on pci0
atapci0: [ITHREAD]
atapci0: AHCI v1.10 controller with 4 3Gbps ports, PM supported
ata2: <ATA channel 0> on atapci0
ata2: port is not ready (timeout 0ms) tfd = 000001d0
ata2: software reset clear timeout
ata2: [ITHREAD]
ata3: <ATA channel 1> on atapci0
ata3: port is not ready (timeout 0ms) tfd = 000001d0
ata3: software reset clear timeout
ata3: [ITHREAD]
ata4: <ATA channel 2> on atapci0
ata4: port is not ready (timeout 0ms) tfd = 000001d0
ata4: software reset clear timeout
ata4: [ITHREAD]
ata5: <ATA channel 3> on atapci0
ata5: port is not ready (timeout 0ms) tfd = 000001d0
ata5: software reset clear timeout
ata5: [ITHREAD]
ohci0: <OHCI (generic) USB controller> mem 0xfe02e000-0xfe02efff irq 16 at device 18.0 on pci0
ohci0: [ITHREAD]
usbus0: <OHCI (generic) USB controller> on ohci0
ohci1: <OHCI (generic) USB controller> mem 0xfe02d000-0xfe02dfff irq 16 at device 18.1 on pci0
ohci1: [ITHREAD]
usbus1: <OHCI (generic) USB controller> on ohci1
ehci0: <EHCI (generic) USB 2.0 controller> mem 0xfe02c000-0xfe02c0ff irq 17 at device 18.2 on pci0
ehci0: [ITHREAD]
usbus2: EHCI version 1.0
usbus2: <EHCI (generic) USB 2.0 controller> on ehci0
ohci2: <OHCI (generic) USB controller> mem 0xfe02b000-0xfe02bfff irq 18 at device 19.0 on pci0
ohci2: [ITHREAD]
usbus3: <OHCI (generic) USB controller> on ohci2
ohci3: <OHCI (generic) USB controller> mem 0xfe02a000-0xfe02afff irq 18 at device 19.1 on pci0
ohci3: [ITHREAD]
usbus4: <OHCI (generic) USB controller> on ohci3
ehci1: <EHCI (generic) USB 2.0 controller> mem 0xfe029000-0xfe0290ff irq 19 at device 19.2 on pci0
ehci1: [ITHREAD]
usbus5: EHCI version 1.0
usbus5: <EHCI (generic) USB 2.0 controller> on ehci1
pci0: <serial bus, SMBus> at device 20.0 (no driver attached)
atapci1: <ATI IXP700/800 UDMA133 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xfa00-0xfa0f at device 20.1 on pci0
ata0: <ATA channel 0> on atapci1
ata0: [ITHREAD]
ata1: <ATA channel 1> on atapci1
ata1: [ITHREAD]
hdac1: <ATI SB600 High Definition Audio Controller> mem 0xfe024000-0xfe027fff irq 16 at device 20.2 on pci0
hdac1: HDA Driver Revision: 20090624_0136
hdac1: [ITHREAD]
isab0: <PCI-ISA bridge> at device 20.3 on pci0
isa0: <ISA bus> on isab0
pcib3: <ACPI PCI-PCI bridge> at device 20.4 on pci0
pci3: <ACPI PCI bus> on pcib3
hifn0 mem 0xfdcff000-0xfdcfffff,0xfdcfa000-0xfdcfbfff,0xfdce8000-0xfdceffff irq 20 at device 6.0 on pci3
hifn0: [ITHREAD]
hifn0: Hifn 7955, rev 0, 32KB dram, pll=0x801<ext clk, 4x mult>
rl0: <RealTek 8139 10/100BaseTX> port 0xce00-0xceff mem 0xfdcfe000-0xfdcfe0ff irq 21 at device 7.0 on pci3
miibus1: <MII bus> on rl0
rlphy0: <RealTek internal media interface> PHY 0 on miibus1
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
rl0: Ethernet address: 00:17:3f:9b:ae:4d
rl0: [ITHREAD]
fwohci0: <Texas Instruments TSB43AB23> mem 0xfdcfd000-0xfdcfd7ff,0xfdcf4000-0xfdcf7fff irq 22 at device 14.0 on pci3
fwohci0: [ITHREAD]
fwohci0: OHCI version 1.10 (ROM=0)
fwohci0: No. of Isochronous channels is 4.
fwohci0: EUI64 00:70:e0:6a:00:00:1f:d0
fwohci0: Phy 1394a available S400, 3 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0
dcons_crom0: <dcons configuration ROM> on firewire0
dcons_crom0: bus_addr 0xb33a8000
fwe0: <Ethernet over FireWire> on firewire0
if_fwe0: Fake Ethernet address: 02:70:e0:00:1f:d0
fwe0: Ethernet address: 02:70:e0:00:1f:d0
fwip0: <IP over FireWire> on firewire0
fwip0: Firewire address: 00:70:e0:6a:00:00:1f:d0 @ 0xfffe00000000, S400, maxrec 2048
sbp0: <SBP-2/SCSI over FireWire> on firewire0
fwohci0: Initiate bus reset
fwohci0: fwohci_intr_core: BUS reset
fwohci0: fwohci_intr_core: node_id=0x00000000, SelfID Count=1, CYCLEMASTER mode
ohci4: <OHCI (generic) USB controller> mem 0xfe028000-0xfe028fff irq 18 at device 20.5 on pci0
ohci4: [ITHREAD]
usbus6: <OHCI (generic) USB controller> on ohci4
amdtemp0: <AMD K8 Thermal Sensors> on hostb4
uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 on acpi0
uart0: [FILTER]
ppc0: <Parallel port> port 0x378-0x37f irq 7 on acpi0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppc0: [ITHREAD]
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
plip0: [ITHREAD]
lpt0: <Printer> on ppbus0
lpt0: [ITHREAD]
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
atrtc0: <AT realtime clock> port 0x70-0x73 on acpi0
cpu0: <ACPI CPU> on acpi0
hwpstate0: <Cool`n'Quiet 2.0> on cpu0
cpu1: <ACPI CPU> on acpi0
cpu2: <ACPI CPU> on acpi0
cpu3: <ACPI CPU> on acpi0
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
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
atkbd0: [ITHREAD]
Timecounters tick every 1.000 msec
firewire0: 1 nodes, maxhop <= 0 cable IRM irm(0)  (me) 
firewire0: bus manager 0 
usbus0: 12Mbps Full Speed USB v1.0
usbus1: 12Mbps Full Speed USB v1.0
usbus2: 480Mbps High Speed USB v2.0
usbus3: 12Mbps Full Speed USB v1.0
usbus4: 12Mbps Full Speed USB v1.0
usbus5: 480Mbps High Speed USB v2.0
usbus6: 12Mbps Full Speed USB v1.0
ugen0.1: <ATI> at usbus0
uhub0: <ATI OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0
ugen1.1: <ATI> at usbus1
uhub1: <ATI OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus1
ugen2.1: <ATI> at usbus2
uhub2: <ATI EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus2
ugen3.1: <ATI> at usbus3
uhub3: <ATI OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus3
ugen4.1: <ATI> at usbus4
uhub4: <ATI OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus4
ugen5.1: <ATI> at usbus5
uhub5: <ATI EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus5
ugen6.1: <ATI> at usbus6
uhub6: <ATI OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus6
ad0: 9765MB <FUJITSU MPC3102AT E 6207> at ata0-master UDMA33
uhub6: 2 ports with 2 removable, self powered
uhub0: 3 ports with 3 removable, self powered
uhub1: 3 ports with 3 removable, self powered
acd0: DMA limited to UDMA33, device found non-ATA66 cable
uhub3: 3 ports with 3 removable, self powered
uhub4: 3 ports with 3 removable, self powered
acd0: DVDR <ATAPI DVD A DH20A4H/QP59> at ata0-slave UDMA33
ad4: 152626MB <SAMSUNG HD161HJ GF100-07> at ata2-master SATA300
ad6: 476940MB <WDC WD5000AACS-00G8B1 05.04C05> at ata3-master SATA300
ad8: 476940MB <WDC WD5000AACS-00G8B1 05.04C05> at ata4-master SATA300
ad10: 476940MB <WDC WD5000AACS-00G8B1 05.04C05> at ata5-master SATA300
hdac0: HDA Codec #0: ATI RS690/780 HDMI
pcm0: <HDA ATI RS690/780 HDMI PCM #0 Digital> at cad 0 nid 1 on hdac0
hdac1: HDA Codec #0: Realtek ALC885
pcm1: <HDA Realtek ALC885 PCM #0 Analog> at cad 0 nid 1 on hdac1
pcm2: <HDA Realtek ALC885 PCM #1 Analog> at cad 0 nid 1 on hdac1
pcm3: <HDA Realtek ALC885 PCM #2 Digital> at cad 0 nid 1 on hdac1
uhub2: 6 ports with 6 removable, self powered
uhub5: 6 ports with 6 removable, self powered
ugen2.2: <Apple, Inc.> at usbus2
uhub7: <Apple, Inc. Keyboard Hub, class 9/0, rev 2.00/94.15, addr 2> on usbus2
uhub7: 3 ports with 2 removable, bus powered
ugen2.3: <Apple, Inc> at usbus2
ukbd0: <Apple, Inc Apple Keyboard, class 0/0, rev 2.00/0.69, addr 3> on usbus2
kbd2 at ukbd0
uhid0: <Apple, Inc Apple Keyboard, class 0/0, rev 2.00/0.69, addr 3> on usbus2
SMP: AP CPU #3 Launched!
SMP: AP CPU #1 Launched!
SMP: AP CPU #2 Launched!
Root mount waiting for: usbus2
ugen2.4: <Macally> at usbus2
ums0: <Macally Macally USB Optical Net Mouse, class 0/0, rev 1.00/2.00, addr 4> on usbus2
ums0: 3 buttons and [XYZ] coordinates ID=0
Root mount waiting for: usbus2
ugen2.5: <Hewlett Packard> at usbus2
ulpt0: <Hewlett Packard hp color LaserJet 1500, class 0/0, rev 2.00/1.00, addr 5> on usbus2
ulpt0: using bi-directional mode
Trying to mount root from ufs:/dev/ad4s1a
This module (opensolaris) contains code covered by the
Common Development and Distribution License (CDDL)
see http://opensolaris.org/os/licensing/opensolaris_license/
WARNING: ZFS is considered to be an experimental feature in FreeBSD.
ZFS filesystem version 13
ZFS storage pool version 13
usb_alloc_device:1588: set address 2 failed (USB_ERR_TIMEOUT, ignored)
usb_alloc_device:1626: getting device descriptor at addr 2 failed, USB_ERR_TIMEOUT!
WARNING: /usr was not properly dismounted
WARNING: /var was not properly dismounted
usbd_req_re_enumerate:1539: addr=2, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_req_re_enumerate:1553: getting device descriptor at addr 2 failed, USB_ERR_TIMEOUT!
usbd_req_re_enumerate:1539: addr=2, set address failed! (USB_ERR_TIMEOUT, ignored)
re0: link state changed to UP