I've just resurrected an old Pentium 3 system with the 22 October i386 snapshot of OpenBSD 4.6-current. It works great, however after issuing "shutdown -hp now" (I'm greeted with the message "shutdown: switch -p must be used with -h." when using "shutdown -p now"), I'm getting the system message "syncing disks... done" followed by "Attempting to power down...". The system never shuts off.
>From the dmesg (below), this appears to be an old APM-based motherboard. The >shutdown(8) manpage states that not all hardware supports automatic power >down. That's fine if this hardware doesn't support it, but given the >"Attempting to power down..." message, I am curious if it might be possible. I'm including the dmesg output below along with pcidump -v and pcidump -x. If you would like more information, please let me know. Thanks!. # dmesg | more OpenBSD 4.6-current (GENERIC) #325: Thu Oct 22 20:38:45 MDT 2009 dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC cpu0: Intel Pentium III ("GenuineIntel" 686-class, 512KB L2 cache) 599 MHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,SER,MMX,FXSR,SSE real mem = 804864000 (767MB) avail mem = 771416064 (735MB) mainbus0 at root bios0 at mainbus0: AT/286+ BIOS, date 08/17/00, BIOS32 rev. 0 @ 0xfd7a0, SMBIOS rev. 2.1 @ 0xefbe0 ( 42 entries) bios0: vendor Intel Corp. version "4S4EB2X0.86A.0024.P17" date 08/17/2000 bios0: Intel Corporation SE440BX-2 apm0 at bios0: Power Management spec V1.2 apm0: AC on, battery charge unknown acpi at bios0 function 0x0 not configured pcibios0 at bios0: rev 2.1 @ 0xfd7a0/0x860 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfdf30/176 (9 entries) pcibios0: PCI Interrupt Router at 000:07:0 ("Intel 82371FB ISA" rev 0x00) pcibios0: PCI bus #1 is the last bus bios0: ROM list: 0xc0000/0x8000 0xc8000/0x1000 0xc9000/0x1000 0xe0000/0x4000! 0xe4000/0xc000 cpu0 at mainbus0: (uniprocessor) cpu0: disabling processor serial number pci0 at mainbus0 bus 0: configuration mode 1 (bios) pchb0 at pci0 dev 0 function 0 "Intel 82443BX AGP" rev 0x03 intelagp0 at pchb0 agp0 at intelagp0: aperture at 0xf8000000, size 0x4000000 ppb0 at pci0 dev 1 function 0 "Intel 82443BX AGP" rev 0x03 pci1 at ppb0 bus 1 vga1 at pci1 dev 0 function 0 "Matrox MGA G400/G450 AGP" rev 0x05 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) piixpcib0 at pci0 dev 7 function 0 "Intel 82371AB PIIX4 ISA" rev 0x02 pciide0 at pci0 dev 7 function 1 "Intel 82371AB IDE" rev 0x01: DMA, channel 0 wired to compatibility , channel 1 wired to compatibility wd0 at pciide0 channel 0 drive 0: <ST3160815A> wd0: 16-sector PIO, LBA48, 152627MB, 312581808 sectors wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 atapiscsi0 at pciide0 channel 1 drive 0 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <PLEXTOR, DVDR PX-820A, 1.00> ATAPI 5/cdrom removable cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2 uhci0 at pci0 dev 7 function 2 "Intel 82371AB USB" rev 0x01: irq 9 piixpm0 at pci0 dev 7 function 3 "Intel 82371AB Power" rev 0x02: SMI iic0 at piixpm0 lmenv0 at iic0 addr 0x2d: adm9240 rev 2, starting scan spdmem0 at iic0 addr 0x50: 256MB SDRAM ECC PC133CL2 spdmem1 at iic0 addr 0x51: 256MB SDRAM ECC PC133CL2 spdmem2 at iic0 addr 0x52: 256MB SDRAM ECC PC133CL2 em0 at pci0 dev 13 function 0 "Intel PRO/1000GT (82541GI)" rev 0x05: irq 11, address 00:1b:21:0f:8b: 43 fxp0 at pci0 dev 14 function 0 "Intel 8255x" rev 0x08, i82559: irq 10, address 00:90:27:a7:50:80 inphy0 at fxp0 phy 1: i82555 10/100 PHY, rev. 4 ohci0 at pci0 dev 15 function 0 "NEC USB" rev 0x43: irq 5, version 1.0 ohci1 at pci0 dev 15 function 1 "NEC USB" rev 0x43: irq 9, version 1.0 ehci0 at pci0 dev 15 function 2 "NEC USB" rev 0x04: irq 11 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "NEC EHCI root hub" rev 2.00/1.00 addr 1 isa0 at piixpcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pmsi0 at pckbc0 (aux slot) pckbc0: using irq 12 for aux slot wsmouse0 at pmsi0 mux 0 pcppi0 at isa0 port 0x61 midi0 at pcppi0: <PC speaker> spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec usb1 at uhci0: USB revision 1.0 uhub1 at usb1 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb2 at ohci0: USB revision 1.0 uhub2 at usb2 "NEC OHCI root hub" rev 1.00/1.00 addr 1 usb3 at ohci1: USB revision 1.0 uhub3 at usb3 "NEC OHCI root hub" rev 1.00/1.00 addr 1 biomask eb65 netmask ef65 ttymask ffff mtrr: Pentium Pro MTRR support vscsi0 at root scsibus1 at vscsi0: 256 targets softraid0 at root root on wd0a swap on wd0b dump on wd0b # pcidump -v Domain /dev/pci0: 0:0:0: Intel 82443BX AGP 0x0000: Vendor ID: 8086 Product ID: 7190 0x0004: Command: 0106 Status ID: 2210 0x0008: Class: 06 Subclass: 00 Interface: 00 Revision: 03 0x000c: BIST: 00 Header Type: 00 Latency Timer: 40 Cache Line Size: 00 0x0010: BAR mem prefetchable 32bit addr: 0xf8000000 0x0014: BAR empty (00000000) 0x0018: BAR empty (00000000) 0x001c: BAR empty (00000000) 0x0020: BAR empty (00000000) 0x0024: BAR empty (00000000) 0x0028: Cardbus CIS: 00000000 0x002c: Subsystem Vendor ID: 0000 Product ID: 0000 0x0030: Expansion ROM Base Address: 00000000 0x0038: 00000000 0x003c: Interrupt Pin: 00 Line: 00 Min Gnt: 00 Max Lat: 00 0x00a0: Capability 0x02: AGP 0:1:0: Intel 82443BX AGP 0x0000: Vendor ID: 8086 Product ID: 7191 0x0004: Command: 011f Status ID: 0220 0x0008: Class: 06 Subclass: 04 Interface: 00 Revision: 03 0x000c: BIST: 00 Header Type: 01 Latency Timer: 80 Cache Line Size: 00 0x0010: 00000000 0x0014: 00000000 0x0018: Primary Bus: 0 Secondary Bus: 1 Subordinate Bus: 1 Secondary Latency Timer: 40 0x001c: I/O Base: f0 I/O Limit: 00 Secondary Status: 22a0 0x0020: Memory Base: f420 Memory Limit: f4f0 0x0024: Prefetch Memory Base: fc00 Prefetch Memory Limit: fdf0 0x0028: Prefetch Memory Base Upper 32 Bits: 00000000 0x002c: Prefetch Memory Limit Upper 32 Bits: 00000000 0x0030: I/O Base Upper 16 Bits: 0000 I/O Limit Upper 16 Bits: 0000 0x0038: Expansion ROM Base Address: 00000000 0x003c: Interrupt Pin: 00 Line: 00 Bridge Control: 008c 0:7:0: Intel 82371AB PIIX4 ISA 0x0000: Vendor ID: 8086 Product ID: 7110 0x0004: Command: 000f Status ID: 0280 0x0008: Class: 06 Subclass: 01 Interface: 00 Revision: 02 0x000c: BIST: 00 Header Type: 80 Latency Timer: 00 Cache Line Size: 00 0x0010: BAR empty (00000000) 0x0014: BAR empty (00000000) 0x0018: BAR empty (00000000) 0x001c: BAR empty (00000000) 0x0020: BAR empty (00000000) 0x0024: BAR empty (00000000) 0x0028: Cardbus CIS: 00000000 0x002c: Subsystem Vendor ID: 0000 Product ID: 0000 0x0030: Expansion ROM Base Address: 00000000 0x0038: 00000000 0x003c: Interrupt Pin: 00 Line: 00 Min Gnt: 00 Max Lat: 00 0:7:1: Intel 82371AB IDE 0x0000: Vendor ID: 8086 Product ID: 7111 0x0004: Command: 0005 Status ID: 0280 0x0008: Class: 01 Subclass: 01 Interface: 80 Revision: 01 0x000c: BIST: 00 Header Type: 00 Latency Timer: 40 Cache Line Size: 00 0x0010: BAR empty (00000000) 0x0014: BAR empty (00000000) 0x0018: BAR empty (00000000) 0x001c: BAR empty (00000000) 0x0020: BAR io addr: 0x000010a0 0x0024: BAR empty (00000000) 0x0028: Cardbus CIS: 00000000 0x002c: Subsystem Vendor ID: 0000 Product ID: 0000 0x0030: Expansion ROM Base Address: 00000000 0x0038: 00000000 0x003c: Interrupt Pin: 00 Line: 00 Min Gnt: 00 Max Lat: 00 0:7:2: Intel 82371AB USB 0x0000: Vendor ID: 8086 Product ID: 7112 0x0004: Command: 0005 Status ID: 0280 0x0008: Class: 0c Subclass: 03 Interface: 00 Revision: 01 0x000c: BIST: 00 Header Type: 00 Latency Timer: 40 Cache Line Size: 00 0x0010: BAR empty (00000000) 0x0014: BAR empty (00000000) 0x0018: BAR empty (00000000) 0x001c: BAR empty (00000000) 0x0020: BAR io addr: 0x00001080 0x0024: BAR empty (00000000) 0x0028: Cardbus CIS: 00000000 0x002c: Subsystem Vendor ID: 0000 Product ID: 0000 0x0030: Expansion ROM Base Address: 00000000 0x0038: 00000000 0x003c: Interrupt Pin: 04 Line: 09 Min Gnt: 00 Max Lat: 00 0:7:3: Intel 82371AB Power 0x0000: Vendor ID: 8086 Product ID: 7113 0x0004: Command: 0003 Status ID: 0280 0x0008: Class: 06 Subclass: 80 Interface: 00 Revision: 02 0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00 0x0010: BAR empty (00000000) 0x0014: BAR empty (00000000) 0x0018: BAR empty (00000000) 0x001c: BAR empty (00000000) 0x0020: BAR empty (00000000) 0x0024: BAR empty (00000000) 0x0028: Cardbus CIS: 00000000 0x002c: Subsystem Vendor ID: 0000 Product ID: 0000 0x0030: Expansion ROM Base Address: 00000000 0x0038: 00000000 0x003c: Interrupt Pin: 00 Line: 00 Min Gnt: 00 Max Lat: 00 0:13:0: Intel PRO/1000GT (82541GI) 0x0000: Vendor ID: 8086 Product ID: 107c 0x0004: Command: 0117 Status ID: 0230 0x0008: Class: 02 Subclass: 00 Interface: 00 Revision: 05 0x000c: BIST: 00 Header Type: 00 Latency Timer: 40 Cache Line Size: 08 0x0010: BAR mem 32bit addr: 0xf4120000 0x0014: BAR mem 32bit addr: 0xf4100000 0x0018: BAR io addr: 0x00001000 0x001c: BAR empty (00000000) 0x0020: BAR empty (00000000) 0x0024: BAR empty (00000000) 0x0028: Cardbus CIS: 00000000 0x002c: Subsystem Vendor ID: 8086 Product ID: 1376 0x0030: Expansion ROM Base Address: 00000000 0x0038: 00000000 0x003c: Interrupt Pin: 01 Line: 0b Min Gnt: ff Max Lat: 00 0x00dc: Capability 0x01: Power Management 0x00e4: Capability 0x07: PCI-X 0:14:0: Intel 8255x 0x0000: Vendor ID: 8086 Product ID: 1229 0x0004: Command: 0117 Status ID: 0290 0x0008: Class: 02 Subclass: 00 Interface: 00 Revision: 08 0x000c: BIST: 00 Header Type: 00 Latency Timer: 42 Cache Line Size: 08 0x0010: BAR mem 32bit addr: 0xf4140000 0x0014: BAR io addr: 0x00001040 0x0018: BAR mem 32bit addr: 0xf4000000 0x001c: BAR empty (00000000) 0x0020: BAR empty (00000000) 0x0024: BAR empty (00000000) 0x0028: Cardbus CIS: 00000000 0x002c: Subsystem Vendor ID: 8086 Product ID: 000c 0x0030: Expansion ROM Base Address: 00000000 0x0038: 00000000 0x003c: Interrupt Pin: 01 Line: 0a Min Gnt: 08 Max Lat: 38 0x00dc: Capability 0x01: Power Management 0:15:0: NEC USB 0x0000: Vendor ID: 1033 Product ID: 0035 0x0004: Command: 0116 Status ID: 0210 0x0008: Class: 0c Subclass: 03 Interface: 10 Revision: 43 0x000c: BIST: 00 Header Type: 80 Latency Timer: 40 Cache Line Size: 08 0x0010: BAR mem 32bit addr: 0xf4141000 0x0014: BAR empty (00000000) 0x0018: BAR empty (00000000) 0x001c: BAR empty (00000000) 0x0020: BAR empty (00000000) 0x0024: BAR empty (00000000) 0x0028: Cardbus CIS: 00000000 0x002c: Subsystem Vendor ID: 1735 Product ID: 0035 0x0030: Expansion ROM Base Address: 00000000 0x0038: 00000000 0x003c: Interrupt Pin: 01 Line: 05 Min Gnt: 01 Max Lat: 2a 0x0040: Capability 0x01: Power Management 0:15:1: NEC USB 0x0000: Vendor ID: 1033 Product ID: 0035 0x0004: Command: 0116 Status ID: 0210 0x0008: Class: 0c Subclass: 03 Interface: 10 Revision: 43 0x000c: BIST: 00 Header Type: 00 Latency Timer: 40 Cache Line Size: 08 0x0010: BAR mem 32bit addr: 0xf4142000 0x0014: BAR empty (00000000) 0x0018: BAR empty (00000000) 0x001c: BAR empty (00000000) 0x0020: BAR empty (00000000) 0x0024: BAR empty (00000000) 0x0028: Cardbus CIS: 00000000 0x002c: Subsystem Vendor ID: 1735 Product ID: 0035 0x0030: Expansion ROM Base Address: 00000000 0x0038: 00000000 0x003c: Interrupt Pin: 02 Line: 09 Min Gnt: 01 Max Lat: 2a 0x0040: Capability 0x01: Power Management 0:15:2: NEC USB 0x0000: Vendor ID: 1033 Product ID: 00e0 0x0004: Command: 0116 Status ID: 0210 0x0008: Class: 0c Subclass: 03 Interface: 20 Revision: 04 0x000c: BIST: 00 Header Type: 00 Latency Timer: 84 Cache Line Size: 08 0x0010: BAR mem 32bit addr: 0xf4143000 0x0014: BAR empty (00000000) 0x0018: BAR empty (00000000) 0x001c: BAR empty (00000000) 0x0020: BAR empty (00000000) 0x0024: BAR empty (00000000) 0x0028: Cardbus CIS: 00000000 0x002c: Subsystem Vendor ID: 1735 Product ID: 00e0 0x0030: Expansion ROM Base Address: 00000000 0x0038: 00000000 0x003c: Interrupt Pin: 03 Line: 0b Min Gnt: 10 Max Lat: 22 0x0040: Capability 0x01: Power Management 1:0:0: Matrox MGA G400/G450 AGP 0x0000: Vendor ID: 102b Product ID: 0525 0x0004: Command: 0007 Status ID: 0290 0x0008: Class: 03 Subclass: 00 Interface: 00 Revision: 05 0x000c: BIST: 00 Header Type: 00 Latency Timer: 80 Cache Line Size: 08 0x0010: BAR mem prefetchable 32bit addr: 0xfc000000 0x0014: BAR mem 32bit addr: 0xf4200000 0x0018: BAR mem 32bit addr: 0xf4800000 0x001c: BAR empty (00000000) 0x0020: BAR empty (00000000) 0x0024: BAR empty (00000000)Domain /dev/pci0: 0x0028: Cardbus CIS: 00000000 0x002c: Subsystem Vendor ID: 102b Product ID: 0338 0x0030: Expansion ROM Base Address: 00000000 0x0038: 00000000 0x003c: Interrupt Pin: 01 Line: 0b Min Gnt: 10 Max Lat: 20 0x00dc: Capability 0x01: Power Management 0x00f0: Capability 0x02: AGP # pcidump -x 0:0:0: Intel 82443BX AGP 0x0000: 71908086 22100106 06000003 00004000 0x0010: f8000008 00000000 00000000 00000000 0x0020: 00000000 00000000 00000000 00000000 0x0030: 00000000 000000a0 00000000 00000000 0:1:0: Intel 82443BX AGP 0x0000: 71918086 0220011f 06040003 00018000 0x0010: 00000000 00000000 40010100 22a000f0 0x0020: f4f0f420 fdf0fc00 00000000 00000000 0x0030: 00000000 00000000 00000000 008c0000 0:7:0: Intel 82371AB PIIX4 ISA 0x0000: 71108086 0280000f 06010002 00800000 0x0010: 00000000 00000000 00000000 00000000 0x0020: 00000000 00000000 00000000 00000000 0x0030: 00000000 00000000 00000000 00000000 0:7:1: Intel 82371AB IDE 0x0000: 71118086 02800005 01018001 00004000 0x0010: 00000000 00000000 00000000 00000000 0x0020: 000010a1 00000000 00000000 00000000 0x0030: 00000000 00000000 00000000 00000000 0:7:2: Intel 82371AB USB 0x0000: 71128086 02800005 0c030001 00004000 0x0010: 00000000 00000000 00000000 00000000 0x0020: 00001081 00000000 00000000 00000000 0x0030: 00000000 00000000 00000000 00000409 0:7:3: Intel 82371AB Power 0x0000: 71138086 02800003 06800002 00000000 0x0010: 00000000 00000000 00000000 00000000 0x0020: 00000000 00000000 00000000 00000000 0x0030: 00000000 00000000 00000000 00000000 0:13:0: Intel PRO/1000GT (82541GI) 0x0000: 107c8086 02300117 02000005 00004008 0x0010: f4120000 f4100000 00001001 00000000 0x0020: 00000000 00000000 00000000 13768086 0x0030: 00000000 000000dc 00000000 00ff010b 0:14:0: Intel 8255x 0x0000: 12298086 02900117 02000008 00004208 0x0010: f4140000 00001041 f4000000 00000000 0x0020: 00000000 00000000 00000000 000c8086 0x0030: 00000000 000000dc 00000000 3808010a 0:15:0: NEC USB 0x0000: 00351033 02100116 0c031043 00804008 0x0010: f4141000 00000000 00000000 00000000 0x0020: 00000000 00000000 00000000 00351735 0x0030: 00000000 00000040 00000000 2a010105 0:15:1: NEC USB 0x0000: 00351033 02100116 0c031043 00004008 0x0010: f4142000 00000000 00000000 00000000 0x0020: 00000000 00000000 00000000 00351735 0x0030: 00000000 00000040 00000000 2a010209 0:15:2: NEC USB 0x0000: 00e01033 02100116 0c032004 00008408 0x0010: f4143000 00000000 00000000 00000000 0x0020: 00000000 00000000 00000000 00e01735 0x0030: 00000000 00000040 00000000 2210030b 1:0:0: Matrox MGA G400/G450 AGP 0x0000: 0525102b 02900007 03000005 00008008 0x0010: fc000008 f4200000 f4800000 00000000 0x0020: 00000000 00000000 00000000 0338102b 0x0030: 00000000 000000dc 00000000 2010010b