Hello,
I'm booting a Dual Xeon 2.4 Machine (just got it a few days ago), and having
a bit of difficulty discerning of the 2nd CPU is actually being used by
OpenBSD 3.9.
Before posting the dmesg, I'll quick state what I've done so far, and why I
don't actually think the 2nd cpu is taking.
I started with FreeBSD (I'm traditionally an OpenBSD user, but I thought I'd
give FreeBSD a try), and when FreeBSD booted with SMP support, it found 4
processors (2 Xeons each acting like 2 because of Hyperthreading, hence 4
processors). Which was fine, but after a bit I decided I didn't
particularly like FreeBSD, and decided to go back to OpenBSD.
When Booting OpenBSD from bsd.mp, however, I noticed that it only detected 2
CPUs. I thought that was odd, and that either
1) OpenBSD was ignoring Hyperthreading, or
2) OpenBSD recognized Hyperthreading but didn't give it it's own CPU, or
3) OpenBSD only recognized 1 processor, but gave the "Virtual CPU" it's own
CPU.
After reading a bit and determining that BSD doesn't like Hyperthreading, I
disabled it in BIOS, and booted again, and the dmesg didn't change, which I
found suspicious.
It still says only 2 CPUs, however, the dmesg doesn't look....right, and I
don't particularly want to take the processor off to test this, but I can, I
figured maybe someone can give me a better answer.
In short, the dmesg looks off. Notice how cpu0 lists a whole slew of bits
"FPU, MMC, SSE, etc" while cpu1 lists 4 bits: FPU,CX8,APIC,CNXT-ID
I tried compiling a fresh GENERIC.MP kernel to see if that'd resolve the
situation, but it did nothing to help with this.
My question, then, is: Is my 2nd CPU actually being recognized, and if not,
why is OpenBSD still seeing the Hyperthreading processor when HT is disabled
from BIOS, and what can I do to fix/troubleshoot this?
Here's the dmesg below (I posted the whole thing instead of just the cpu and
bus parts in case there might be something I'm missing):
cpu0: Intel(R) Xeon(TM) CPU 2.40GHz ("GenuineIntel" 686-class) 2.40 GHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,CNXT-ID
real mem = 1073233920 (1048080K)
avail mem = 972546048 (949752K)
using 4278 buffers containing 53764096 bytes (52504K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(40) BIOS, date 09/17/03, BIOS32 rev. 0 @ 0xfd7d1
pcibios0 at bios0: rev 2.1 @ 0xf0000/0xffff
pcibios0: PCI BIOS has 8 Interrupt Routing table entries
pcibios0: PCI Exclusive IRQs: 9 10 11 15
pcibios0: PCI Interrupt Router at 000:15:0 ("ServerWorks CSB5" rev 0x00)
pcibios0: PCI bus #0 is the last bus
bios0: ROM list: 0xc0000/0x8000 0xc8000/0x1800 0xc9800/0x4000 0xcd800/0x1800
mainbus0: Intel MP Specification (Version 1.4) (IBM ENSW TURQUIOSESMP)
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: apic clock running at 99 MHz
cpu1 at mainbus0: apid 6 (application processor)
cpu1: Intel(R) Xeon(TM) CPU 2.40GHz ("GenuineIntel" 686-class)
cpu1: FPU,CX8,APIC,CNXT-ID
mainbus0: bus 0 is type PCI
mainbus0: bus 1 is type PCI
mainbus0: bus 2 is type PCI
mainbus0: bus 3 is type ISA
ioapic0 at mainbus0: apid 14 pa 0xfec00000, version 11, 16 pins
ioapic1 at mainbus0: apid 13 pa 0xfec01000, version 11, 16 pins
ioapic2 at mainbus0: apid 12 pa 0xfec02000, version 11, 16 pins
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "ServerWorks CMIC-WS Host (GC-LE)" rev 0x13
pchb1 at pci0 dev 0 function 1 "ServerWorks CMIC-WS Host (GC-LE)" rev 0x00
pchb2 at pci0 dev 0 function 2 "ServerWorks CMIC-LE" rev 0x00
pci1 at pchb2 bus 1
mpt0 at pci1 dev 1 function 0 "Symbios Logic 53c1030" rev 0x07: apic 13 int
6 (irq 9)
scsibus0 at mpt0: 16 targets
sd0 at scsibus0 targ 0 lun 0: <LSILOGIC, 1030 IM, 1000> SCSI2 0/direct fixed
sd0: 69878MB, 69879 cyl, 16 head, 127 sec, 512 bytes/sec, 143110145 sec
total
mpt0: target 0 Asynchronous at 0MHz width 8bit offset 0 QAS 0 DT 0 IU 0
fxp0 at pci1 dev 2 function 0 "Intel 8255x" rev 0x0c, i82550: apic 13 int 2
(irq 3), address 00:07:e9:0c:15:c7
inphy0 at fxp0 phy 1: i82555 10/100 PHY, rev. 4
vga1 at pci0 dev 1 function 0 "ATI Rage XL" rev 0x27
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
piixpm0 at pci0 dev 15 function 0 "ServerWorks CSB5" rev 0x93
iic0 at piixpm0
pciide0 at pci0 dev 15 function 1 "ServerWorks CSB5 IDE" rev 0x93: DMA
atapiscsi0 at pciide0 channel 1 drive 0
scsibus1 at atapiscsi0: 2 targets
cd0 at scsibus1 targ 0 lun 0: <LG, CD-ROM CRN-8245B, 1.16> SCSI0 5/cdrom
removable
cd0(pciide0:1:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 2
ohci0 at pci0 dev 15 function 2 "ServerWorks OSB4/CSB5 USB" rev 0x05ioapic0:
conflicting map entries for pin 11
: irq 11, version 1.0, legacy support
usb0 at ohci0: USB revision 1.0
uhub0 at usb0
uhub0: ServerWorks OHCI root hub, rev 1.00/1.00, addr 1
uhub0: 4 ports with 4 removable, self powered
pcib0 at pci0 dev 15 function 3 "ServerWorks CSB5 LPC" rev 0x00
pchb3 at pci0 dev 17 function 0 "ServerWorks CIOB-X2 PCIX" rev 0x03
pchb4 at pci0 dev 17 function 2 "ServerWorks CIOB-X2 PCIX" rev 0x03
pci2 at pchb4 bus 2
bge0 at pci2 dev 1 function 0 "Broadcom BCM5703X" rev 0x02, BCM5703 A2
(0x1002): apic 13 int 8 (irq 4), address 00:09:6b:8c:b3:fc
brgphy0 at bge0 phy 1: BCM5703 10/100/1000baseT PHY, rev. 2
bge1 at pci2 dev 2 function 0 "Broadcom BCM5703X" rev 0x02, BCM5703 A2
(0x1002): apic 13 int 9 (irq 5), address 00:09:6b:8c:b3:fd
brgphy1 at bge1 phy 1: BCM5703 10/100/1000baseT PHY, rev. 2
isa0 at pcib0
isadma0 at isa0
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
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
spkr0 at pcppi0
npx0 at isa0 port 0xf0/16: 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
biomask 0 netmask 0 ttymask 0
pctr: user-level cycle counter enabled
uhidev0 at uhub0 port 3 configuration 1 interface 0
uhidev0: Chicony USB Gaming Keyboard Pro, rev 2.00/4.03, addr 2, iclass 3/1
ukbd0 at uhidev0: 8 modifier keys, 6 key codes
wskbd1 at ukbd0 mux 1
wskbd1: connecting to wsdisplay0
uhidev1 at uhub0 port 3 configuration 1 interface 1
uhidev1: Chicony USB Gaming Keyboard Pro, rev 2.00/4.03, addr 2, iclass 3/0
uhidev1: 3 report ids
uhid0 at uhidev1 reportid 1: input=4, output=0, feature=0
uhid1 at uhidev1 reportid 2: input=1, output=0, feature=0
uhid2 at uhidev1 reportid 3: input=0, output=0, feature=4
uhidev2 at uhub0 port 3 configuration 1 interface 2
uhidev2: Chicony USB Gaming Keyboard Pro, rev 2.00/4.03, addr 2, iclass 3/0
uhid3 at uhidev2: input=2, output=0, feature=0
dkcsum: sd0 matches BIOS drive 0x80
Thank you,
-Jesse Gumm
