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SMP system not running SMP



Background:  I'm a reasonably experienced UNIX guy, but not very experienced
with FreeBSD in particular.

Synopsis:  I have a machine with two processors which only shows one with a
FreeBSD SMP kernel.

More details:

Hardware is a SuperMicro H8DA8-O, same chipset and hardware as the
known-workable H8DAR-8.  Processors are Opteron 250s.  Memory is installed
in a bank off the first processor; don't have enough chips to populate the
other, but that's not supposed to matter.

NetBSD/x86_64 runs SMP on this hardware and detects and runs both processors.
No problems observed.

The FreeBSD kernel hangs after device probes if ACPI is enabled.  Disabling
ACPI in the BIOS eliminates this.

The BIOS is configured for Intel MPS 1.4, which I'm pretty sure is what
everyone wants.

I have built an SMP kernel, using the plain old SMP kernel config file, no
special magic.

Attached:  dmesg output, mptable output, and some sysctl.  I have no clue.
I assume I've missed something patently obvious, but I don't know what it
would be.  Any tips?

hw.machine: amd64
hw.model: AMD Opteron(tm) Processor 250
hw.ncpu: 1
hw.physmem: 2136616960
hw.usermem: 2113753088
hw.machine_arch: amd64
hw.realmem: 2147483648
hw.clockrate: 2393
hw.instruction_sse: 1
hw.apic.enable_extint: 0
kern.smp.forward_roundrobin_enabled: 1
kern.smp.forward_signal_enabled: 1
kern.smp.cpus: 1
kern.smp.disabled: 0
kern.smp.active: 0
kern.smp.maxcpus: 16


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 6.1-RELEASE #0: Thu Jun 22 02:23:33 CDT 2006
    root@:/usr/src/sys/amd64/compile/SMP
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD Opteron(tm) Processor 250 (2393.19-MHz K8-class CPU)
  Origin = "AuthenticAMD"  Id = 0x20f51  Stepping = 1
  Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
  Features2=0x1<SSE3>
  AMD Features=0xe2500800<SYSCALL,NX,MMX+,FFXSR,LM,3DNow+,3DNow>
  AMD Features2=0x1<LAHF>
real memory  = 2147483648 (2048 MB)
avail memory = 2062573568 (1967 MB)
kbd1 at kbdmux0
    ACPI-0159: *** Error: AcpiLoadTables: Could not get RSDP, AE_NO_ACPI_TABLES
    ACPI-0213: *** Error: AcpiLoadTables: Could not load tables: AE_NO_ACPI_TABLES
ACPI: table load failed: AE_NO_ACPI_TABLES
cpu0 on motherboard
pcib0: <Host to PCI bridge> pcibus 0 on motherboard
pci0: <PCI bus> on pcib0
pcib1: <PCI-PCI bridge> at device 6.0 on pci0
pci3: <PCI bus> on pcib1
ohci0: <OHCI (generic) USB controller> mem 0xfeafd000-0xfeafdfff irq 9 at device 0.0 on pci3
ohci0: [GIANT-LOCKED]
usb0: OHCI version 1.0, legacy support
usb0: <OHCI (generic) USB controller> on ohci0
usb0: USB revision 1.0
uhub0: AMD OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 3 ports with 3 removable, self powered
ohci1: <OHCI (generic) USB controller> mem 0xfeafc000-0xfeafcfff irq 9 at device 0.1 on pci3
ohci1: [GIANT-LOCKED]
usb1: OHCI version 1.0, legacy support
usb1: <OHCI (generic) USB controller> on ohci1
usb1: USB revision 1.0
uhub1: AMD OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 3 ports with 3 removable, self powered
pci3: <display, VGA> at device 4.0 (no driver attached)
fwohci0: <VIA Fire II (VT6306)> port 0xbc00-0xbc7f mem 0xfeafe800-0xfeafefff irq 11 at device 6.0 on pci3
fwohci0: OHCI version 1.0 (ROM=1)
fwohci0: No. of Isochronous channels is 4.
fwohci0: EUI64 00:11:06:00:00:00:68:95
fwohci0: Phy 1394a available S400, 3 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0
fwe0: <Ethernet over FireWire> on firewire0
if_fwe0: Fake Ethernet address: 02:11:06:00:68:95
fwe0: Ethernet address: 02:11:06:00:68:95
fwe0: if_start running deferred for Giant
sbp0: <SBP-2/SCSI over FireWire> on firewire0
fwohci0: Initiate bus reset
fwohci0: node_id=0xc800ffc0, gen=1, CYCLEMASTER mode
firewire0: 1 nodes, maxhop <= 0, cable IRM = 0 (me)
firewire0: bus manager 0 (me)
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <AMD 8111 UDMA133 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xffa0-0xffaf at device 7.1 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
pci0: <serial bus, SMBus> at device 7.2 (no driver attached)
pci0: <bridge> at device 7.3 (no driver attached)
pcib2: <PCI-PCI bridge> at device 10.0 on pci0
pci2: <PCI bus> on pcib2
ahd0: <Adaptec AIC7902 Ultra320 SCSI adapter> port 0xa800-0xa8ff,0xa400-0xa4ff mem 0xfc9fe000-0xfc9fffff irq 10 at device 3.0 on pci2
ahd0: [GIANT-LOCKED]
aic7902: Ultra320 Wide Channel A, SCSI Id=7, PCI-X 67-100Mhz, 512 SCBs
ahd1: <Adaptec AIC7902 Ultra320 SCSI adapter> port 0xa000-0xa0ff,0xac00-0xacff mem 0xfc9fc000-0xfc9fdfff irq 11 at device 3.1 on pci2
ahd1: [GIANT-LOCKED]
aic7902: Ultra320 Wide Channel B, SCSI Id=7, PCI-X 67-100Mhz, 512 SCBs
bge0: <Broadcom BCM5704C Dual Gigabit Ethernet, ASIC rev. 0x2100> mem 0xfc9e0000-0xfc9effff irq 15 at device 5.0 on pci2
miibus0: <MII bus> on bge0
brgphy0: <BCM5704 10/100/1000baseTX PHY> on miibus0
brgphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX, 1000baseTX-FDX, auto
bge0: Ethernet address: 00:30:48:59:90:0c
bge1: <Broadcom BCM5704C Dual Gigabit Ethernet, ASIC rev. 0x2100> mem 0xfc9d0000-0xfc9dffff irq 9 at device 5.1 on pci2
miibus1: <MII bus> on bge1
brgphy1: <BCM5704 10/100/1000baseTX PHY> on miibus1
brgphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX, 1000baseTX-FDX, auto
bge1: Ethernet address: 00:30:48:59:90:0d
pci0: <base peripheral, interrupt controller> at device 10.1 (no driver attached)
pcib3: <PCI-PCI bridge> at device 11.0 on pci0
pci1: <PCI bus> on pcib3
pci0: <base peripheral, interrupt controller> at device 11.1 (no driver attached)
orm0: <ISA Option ROM> at iomem 0xc0000-0xc7fff on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Generic PS/2 mouse, device ID 0
fdc0: <Enhanced floppy controller> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: [FAST]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
ppc0: cannot reserve I/O port range
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounter "TSC" frequency 2393193693 Hz quality 800
Timecounters tick every 1.000 msec
module_register_init: MOD_LOAD (amr_linux, 0xffffffff8062a040, 0) error 6
Waiting 5 seconds for SCSI devices to settle
acd0: DVDR <DVDR PX-750A/1.02> at ata0-master UDMA66
ahd0: Invalid Sequencer interrupt occurred.
>>>>>>>>>>>>>>>>>> Dump Card State Begins <<<<<<<<<<<<<<<<<
ahd0: Dumping Card State at program address 0x23c Mode 0x0
Card was paused
INTSTAT[0x0] SELOID[0x1] SELID[0x0] HS_MAILBOX[0x0] 
INTCTL[0x80]:(SWTMINTMASK) SEQINTSTAT[0x0] SAVED_MODE[0x11] 
DFFSTAT[0x33]:(CURRFIFO_NONE|FIFO0FREE|FIFO1FREE) 
SCSISIGI[0x0]:(P_DATAOUT) SCSIPHASE[0x0] SCSIBUS[0x0] 
LASTPHASE[0x1]:(P_DATAOUT|P_BUSFREE) SCSISEQ0[0x0] 
SCSISEQ1[0x12]:(ENAUTOATNP|ENRSELI) SEQCTL0[0x0] SEQINTCTL[0x6]:(INTMASK1|INTMASK2) 
SEQ_FLAGS[0x0] SEQ_FLAGS2[0x0] QFREEZE_COUNT[0x2] 
KERNEL_QFREEZE_COUNT[0x2] MK_MESSAGE_SCB[0xff00] MK_MESSAGE_SCSIID[0xff] 
SSTAT0[0x0] SSTAT1[0x8]:(BUSFREE) SSTAT2[0x0] SSTAT3[0x0] 
PERRDIAG[0x0] SIMODE1[0xa4]:(ENSCSIPERR|ENSCSIRST|ENSELTIMO) 
LQISTAT0[0x0] LQISTAT1[0x0] LQISTAT2[0x0] LQOSTAT0[0x0] 
LQOSTAT1[0x0] LQOSTAT2[0x0] 

SCB Count = 16 CMDS_PENDING = 0 LASTSCB 0xffff CURRSCB 0xe NEXTSCB 0xff40
qinstart = 28 qinfifonext = 28
QINFIFO:
WAITING_TID_QUEUES:
Pending list:
Total 0
Kernel Free SCB list: 15 14 1 2 3 4 5 6 7 8 9 10 11 12 13 0 
Sequencer Complete DMA-inprog list: 
Sequencer Complete list: 
Sequencer DMA-Up and Complete list: 
Sequencer On QFreeze and Complete list: 


ahd0: FIFO0 Free, LONGJMP == 0x8000, SCB 0xf
SEQIMODE[0x3f]:(ENCFG4TCMD|ENCFG4ICMD|ENCFG4TSTAT|ENCFG4ISTAT|ENCFG4DATA|ENSAVEPTRS) 
SEQINTSRC[0x0] DFCNTRL[0x0] DFSTATUS[0x89]:(FIFOEMP|HDONE|PRELOAD_AVAIL) 
SG_CACHE_SHADOW[0x2]:(LAST_SEG) SG_STATE[0x0] DFFSXFRCTL[0x0] 
SOFFCNT[0x0] MDFFSTAT[0x5]:(FIFOFREE|DLZERO) SHADDR = 0x00, SHCNT = 0x0 
HADDR = 0x00, HCNT = 0x0 CCSGCTL[0x10]:(SG_CACHE_AVAIL) 

ahd0: FIFO1 Free, LONGJMP == 0x8063, SCB 0xe
SEQIMODE[0x3f]:(ENCFG4TCMD|ENCFG4ICMD|ENCFG4TSTAT|ENCFG4ISTAT|ENCFG4DATA|ENSAVEPTRS) 
SEQINTSRC[0x0] DFCNTRL[0x0] DFSTATUS[0x89]:(FIFOEMP|HDONE|PRELOAD_AVAIL) 
SG_CACHE_SHADOW[0x2]:(LAST_SEG) SG_STATE[0x0] DFFSXFRCTL[0x0] 
SOFFCNT[0x0] MDFFSTAT[0x5]:(FIFOFREE|DLZERO) SHADDR = 0x00, SHCNT = 0x0 
HADDR = 0x00, HCNT = 0x0 CCSGCTL[0x10]:(SG_CACHE_AVAIL) 
LQIN: 0x8 0x0 0x0 0xf 0x0 0x1 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 
ahd0: LQISTATE = 0x0, LQOSTATE = 0x0, OPTIONMODE = 0x42
ahd0: OS_SPACE_CNT = 0x20 MAXCMDCNT = 0x1
ahd0: SAVED_SCSIID = 0x0 SAVED_LUN = 0x0

SIMODE0[0xc]:(ENOVERRUN|ENIOERR) 
CCSCBCTL[0x4]:(CCSCBDIR) 
ahd0: REG0 == 0xe290, SINDEX = 0x10e, DINDEX = 0x104
ahd0: SCBPTR == 0xf, SCB_NEXT == 0xff40, SCB_NEXT2 == 0xe
CDB 12 20 0 80 88 36
STACK: 0x237 0x2 0x0 0x0 0x0 0x0 0x0 0x0
<<<<<<<<<<<<<<<<< Dump Card State Ends >>>>>>>>>>>>>>>>>>
Copied 18 bytes of sense data offset 12: 0x70 0x0 0x6 0x0 0x0 0x0 0x0 0xa 0x0 0x0 0x0 0x0 0x29 0x2 0x2 0x0 0x0 0x0
Copied 18 bytes of sense data offset 12: 0x70 0x0 0x6 0x0 0x0 0x0 0x0 0xa 0x0 0x0 0x0 0x0 0x29 0x2 0x2 0x0 0x0 0x0
da0 at ahd0 bus 0 target 0 lun 0
da0: <SEAGATE ST373207LW 0005> Fixed Direct Access SCSI-3 device 
da0: 320.000MB/s transfers (160.000MHz, offset 63, 16bit), Tagged Queueing Enabled
da0: 70007MB (143374744 512 byte sectors: 255H 63S/T 8924C)
da1 at ahd0 bus 0 target 1 lun 0
da1: <SEAGATE ST373207LW 0005> Fixed Direct Access SCSI-3 device 
da1: 320.000MB/s transfers (160.000MHz, offset 63, 16bit), Tagged Queueing Enabled
da1: 70007MB (143374744 512 byte sectors: 255H 63S/T 8924C)
Trying to mount root from ufs:/dev/da0s1a

===============================================================================

MPTable

-------------------------------------------------------------------------------

MP Floating Pointer Structure:

  location:			BIOS
  physical address:		0x000ff780
  signature:			'_MP_'
  length:			16 bytes
  version:			1.4
  checksum:			0x74
  mode:				Virtual Wire

-------------------------------------------------------------------------------

MP Config Table Header:

  physical address:		0x000fcd50
  signature:			'PCMP'
  base table length:		324
  version:			1.4
  checksum:			0x03
  OEM ID:			'MSI     '
  Product ID:			'RHAPSODY    '
  OEM table pointer:		0x00000000
  OEM table size:		0
  entry count:			32
  local APIC address:		0xfee00000
  extended table length:	124
  extended table checksum:	107

-------------------------------------------------------------------------------

MP Config Base Table Entries:

--
Processors:	APIC ID	Version	State		Family	Model	Step	Flags
		 0	 0x10	 BSP, usable	 15	 5	 1	 0x78bfbff
		 1	 0x10	 AP, usable	 15	 5	 1	 0x78bfbff
--
Bus:		Bus ID	Type
		 0	 PCI   
		 1	 PCI   
		 2	 PCI   
		 3	 PCI   
		 4	 ISA   
--
I/O APICs:	APIC ID	Version	State		Address
		 2	 0x11	 usable		 0xfec00000
		 3	 0x11	 usable		 0xfebfe000
		 4	 0x11	 usable		 0xfebff000
--
I/O Ints:	Type	Polarity    Trigger	Bus ID	 IRQ	APIC ID	PIN#
		ExtINT	 conforms    conforms	     4	   0	      2	   0
		INT	 conforms    conforms	     4	   1	      2	   1
		INT	 conforms    conforms	     4	   0	      2	   2
		INT	 conforms    conforms	     4	   3	      2	   3
		INT	 conforms    conforms	     4	   4	      2	   4
		INT	 conforms    conforms	     4	   5	      2	   5
		INT	 conforms    conforms	     4	   6	      2	   6
		INT	 conforms    conforms	     4	   7	      2	   7
		INT	active-hi        edge	     4	   8	      2	   8
		INT	 conforms    conforms	     4	  12	      2	  12
		INT	 conforms    conforms	     4	  13	      2	  13
		INT	 conforms    conforms	     4	  14	      2	  14
		INT	active-lo       level	     0	 7:D	      2	  19
		INT	active-lo       level	     3	 0:D	      2	  19
		INT	active-lo       level	     3	 4:A	      2	  17
		INT	active-lo       level	     3	 6:A	      2	  17
		INT	active-lo       level	     2	 3:A	      3	   0
		INT	active-lo       level	     2	 3:B	      3	   1
		INT	active-lo       level	     2	 5:A	      3	   2
		INT	active-lo       level	     2	 5:B	      3	   3
--
Local Ints:	Type	Polarity    Trigger	Bus ID	 IRQ	APIC ID	PIN#
		ExtINT	 conforms    conforms	     0	 0:A	    255	   0
		NMI	 conforms    conforms	     0	 0:A	    255	   1

-------------------------------------------------------------------------------

MP Config Extended Table Entries:

--
System Address Space
 bus ID: 0 address type: I/O address
 address base: 0xa000
 address range: 0x3000
--
System Address Space
 bus ID: 0 address type: I/O address
 address base: 0x0
 address range: 0x100
--
System Address Space
 bus ID: 0 address type: memory address
 address base: 0xa0000
 address range: 0x20000
--
System Address Space
 bus ID: 0 address type: memory address
 address base: 0xfc700000
 address range: 0x2500000
--
System Address Space
 bus ID: 0 address type: prefetch address
 address base: 0xff500000
 address range: 0x200000
--
Bus Heirarchy
 bus ID: 4 bus info: 0x01 parent bus ID: 0
--
Compatibility Bus Address
 bus ID: 0 address modifier: add
 predefined range: 0x00000000
--
Compatibility Bus Address
 bus ID: 0 address modifier: add
 predefined range: 0x00000001

===============================================================================

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