Dell poweredge 850 hangs on shutdown -p

[George Hartzell]

I have a Dell PowerEdge 850 that hangs when I try to power it down
using "shutdown -p now".  Otherwise it seems to run splendidly.

I reaches the point where it says: "Powering the system off using
acpi" and then just sits there.

Powering it off by just pressing the power button works perfectly.

It's running a minimal installation from a FreeBSD 6.3BETA3 cd, which
I burned 11/6/06.

I've pasted the system's dmesg output below.

Has anyone seen this before?

Does anyone have any suggstion on how to whip it into shape?

g.





Copyright (c) 1992-2006 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 is a registered trademark of The FreeBSD Foundation.
FreeBSD 6.2-BETA3 #0: Mon Oct 30 22:04:37 UTC 2006
    root at opus.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC
ACPI APIC Table: <DELL   PE850   >
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz (2800.11-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf49  Stepping = 9
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x641d<SSE3,RSVD2,MON,DS_CPL,CNTX-ID,CX16,<b14>>
  AMD Features=0x20100000<NX,LM>
  AMD Features2=0x1<LAHF>
real memory  = 1073479680 (1023 MB)
avail memory = 1041481728 (993 MB)
ioapic0: Changing APIC ID to 1
ioapic1: Changing APIC ID to 2
ioapic1: WARNING: intbase 32 != expected base 24
ioapic0 <Version 2.0> irqs 0-23 on motherboard
ioapic1 <Version 2.0> irqs 32-55 on motherboard
kbd1 at kbdmux0
ath_hal: 0.9.17.2 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
acpi0: <DELL PE850> on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
cpu0: <ACPI CPU> 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
pcib2: <ACPI PCI-PCI bridge> at device 28.0 on pci0
pci2: <ACPI PCI bus> on pcib2
pcib3: <ACPI PCI-PCI bridge> at device 0.0 on pci2
pci3: <ACPI PCI bus> on pcib3
pcib4: <ACPI PCI-PCI bridge> at device 28.4 on pci0
pci4: <ACPI PCI bus> on pcib4
bge0: <Broadcom BCM5750 B1, ASIC rev. 0x4101> mem 0xfe8f0000-0xfe8fffff irq 16 at device 0.0 on pci4
miibus0: <MII bus> on bge0
brgphy0: <BCM5750 10/100/1000baseTX PHY> on miibus0
brgphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX, 1000baseTX-FDX, auto
bge0: Ethernet address: 00:13:72:fc:92:b8
pcib5: <ACPI PCI-PCI bridge> at device 28.5 on pci0
pci5: <ACPI PCI bus> on pcib5
bge1: <Broadcom BCM5750 B1, ASIC rev. 0x4101> mem 0xfe6f0000-0xfe6fffff irq 17 at device 0.0 on pci5
miibus1: <MII bus> on bge1
brgphy1: <BCM5750 10/100/1000baseTX PHY> on miibus1
brgphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX, 1000baseTX-FDX, auto
bge1: Ethernet address: 00:13:72:fc:92:b9
uhci0: <UHCI (generic) USB controller> port 0xbce0-0xbcff irq 20 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
usb0: <UHCI (generic) USB controller> 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
uhci1: <UHCI (generic) USB controller> port 0xbcc0-0xbcdf irq 21 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
usb1: <UHCI (generic) USB controller> 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
uhci2: <UHCI (generic) USB controller> port 0xbca0-0xbcbf irq 22 at device 29.2 on pci0
uhci2: [GIANT-LOCKED]
usb2: <UHCI (generic) USB controller> on uhci2
usb2: USB revision 1.0
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
ehci0: <Intel 82801GB/R (ICH7) USB 2.0 controller> mem 0xfeb00400-0xfeb007ff irq 20 at device 29.7 on pci0
ehci0: [GIANT-LOCKED]
usb3: EHCI version 1.0
usb3: wrong number of companions (7 != 3)
usb3: companion controllers, 2 ports each: usb0 usb1 usb2
usb3: <Intel 82801GB/R (ICH7) USB 2.0 controller> on ehci0
usb3: USB revision 2.0
uhub3: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub3: 6 ports with 6 removable, self powered
pcib6: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci6: <ACPI PCI bus> on pcib6
pci6: <display, VGA> at device 5.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH7 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xfc00-0xfc0f at device 31.1 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
atapci1: <Intel ICH7 SATA300 controller> port 0xbc98-0xbc9f,0xbc90-0xbc93,0xbc80-0xbc87,0xbc78-0xbc7b,0xbc60-0xbc6f mem 0xfeb00000-0xfeb003ff irq 20 at device 31.2 on pci0
ata2: <ATA channel 0> on atapci1
ata3: <ATA channel 1> on atapci1
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
fdc0: <floppy drive controller> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0
fdc0: does not respond
device_attach: fdc0 attach returned 6
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
fdc0: <floppy drive controller> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0
fdc0: does not respond
device_attach: fdc0 attach returned 6
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xc8fff,0xec000-0xeffff on isa0
ppc0: parallel port not found.
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounter "TSC" frequency 2800113512 Hz quality 800
Timecounters tick every 1.000 msec
acd0: CDROM <TEAC CD-ROM CD-224E-N/3.AB> at ata0-master UDMA33
ad4: 76293MB <Maxtor 6L080M0 BACE1G10> at ata2-master SATA150
Trying to mount root from ufs:/dev/ad4s1a