ipmi(4) on PowerEdge 860 - bogus CPU temperature readings

[Brian A. Seklecki]

This platform is returning a bogus value for the main temperature sensor
using the ipmi(4) module in 6.3/amd64:

# ipmitool -V
ipmitool version 1.8.8

# ipmitool sdr     
Temp             | -54 degrees C     | cr
Planar Temp      | 30 degrees C      | ok

That value should probably be an absolute value?


IpmiTool:

# ipmitool -v sdr': ipmitool -v sdr |more
Sensor ID              : Temp (0x1)
 Entity ID             : 3.1 (Processor)
 Sensor Type (Analog)  : Temperature
 Sensor Reading        : -54 (+/- 1) degrees C
 Status                : Lower Critical
 Nominal Reading       : 50.000
 Normal Minimum        : 11.000
 Normal Maximum        : 119.000
 Positive Hysteresis   : -127.000
 Negative Hysteresis   : -127.000
 Minimum sensor range  : Unspecified
 Maximum sensor range  : Unspecified
 Event Message Control : Per-threshold
 Readable Thresholds   : 
 Settable Thresholds   : lcr lnc unc ucr 
 Threshold Read Mask   : lcr lnc unc ucr 
 Event Status          : Event Messages Disabled
 Assertion Events      : 
 Event Enable          : Event Messages Disabled
 Assertions Enabled    : 

Same results with FreeIPMI

# ipmi-sensors 
1: Temp (Temperature): -54.00 C (5.00/125.00): [At or Below (<=) Lower
Critical Threshold]
2: Planar Temp (Temperature): 30.00 C (3.00/53.00): [OK]
3: CMOS Battery (Voltage): 3.06 V (2.64/NA): [OK]
4: VCORE (Voltage): [State Deasserted]
5: PROC VTT (Voltage): [State Deasserted]
6: 1.5V PG (Voltage): [State Deasserted]
7: 1.8V PG (Voltage): [State Deasserted]
8: Presence (Entity Presence): [Entity Present]
9: PROC Fan (Fan): 3150.00 RPM (750.00/NA): [OK]
10: DIMM Fan (Fan): 3000.00 RPM (750.00/NA): [OK]
11: PCI Fan (Fan): 1350.00 RPM (1425.00/NA): [OK]
12: Status (Processor): [Processor Presence detected]
13: VRM (Power Supply): [Presence detected]
14: OS Watchdog (Watchdog 2): [OK]
15: SEL (Event Logging Disabled): [Unknown]
16: Intrusion (Platform Chassis Intrusion): [OK]
17: Temp Interface (Temperature): [OK]
23: ECC Corr Err (Memory): [Unknown]
24: ECC Uncorr Err (Memory): [Unknown]
25: I/O Channel Chk (Critical Interrupt): [Unknown]
26: PCI Parity Err (Critical Interrupt): [Unknown]
27: PCI System Err (Critical Interrupt): [Unknown]
28: SBE Log Disable (Event Logging Disabled): [Unknown]
29: Logging Disable (Event Logging Disabled): [Unknown]
30: Unknown (System Event): [Unknown]
31: PROC Protocol (Processor): [Unknown]
32: PROC Bus PERR (Processor): [Unknown]
33: PROC Init Err (Processor): [Unknown]
34: PROC Machine Ch (Processor): [Unknown]
35: Memory Spared (Memory): [Unknown]
36: Memory Mirrored (Memory): [Unknown]
37: Memory RAID (Memory): [Unknown]
38: Memory Added (Memory): [Unknown]
39: Memory Removed (Memory): [Unknown]
40: PCIE Fatal Err (Critical Interrupt): [Unknown]
41: Chipset Err (Critical Interrupt): [Unknown]
42: Err Reg Pointer (OEM Reserved): [Unknown]



dmesg(8):

Copyright (c) 1992-2008 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 RELENG_6_3_amd64-CFI_INTERNAL-022408-1232EST #0: Sun Feb 24
19:43:21 UTC 2008
    root at pe860burnin0:/usr/obj/usr/src/sys/SMP
ACPI APIC Table: <DELL   PE_SC3  >
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(R) CPU            3050  @ 2.13GHz (2133.42-MHz
K8-class CPU)
  Origin = "GenuineIntel"  Id = 0x6f2  Stepping = 2

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=0xe3bd<SSE3,RSVD2,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM>
  AMD Features=0x20100800<SYSCALL,NX,LM>
  AMD Features2=0x1<LAHF>
  Cores per package: 2
real memory  = 1073479680 (1023 MB)
avail memory = 1020604416 (973 MB)
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
ioapic0: Changing APIC ID to 2
ioapic1: Changing APIC ID to 3
ioapic0 <Version 2.0> irqs 0-23 on motherboard
ioapic1 <Version 2.0> irqs 32-55 on motherboard
kbd1 at kbdmux0
ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413,
RF5413)
hptrr: HPT RocketRAID controller driver v1.1 (Feb 24 2008 19:42:43)
acpi0: <DELL PE_SC3> 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
acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on
acpi0
Timecounter "HPET" frequency 14318180 Hz quality 900
cpu0: <ACPI CPU> on acpi0
cpu1: <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: <PCI-PCI bridge> at device 2.0 on pci3
pci4: <PCI bus> on pcib4
pci4: <display, VGA> at device 2.0 (no driver attached)
pci4: <unknown> at device 4.0 (no driver attached)
pci4: <unknown> at device 4.1 (no driver attached)
pci4: <unknown> at device 4.2 (no driver attached)
atapci0: <SiI SiI 0680 UDMA133 controller> port
0xe8f0-0xe8f7,0xe8e4-0xe8e7,0xe8d8-0xe8df,0xe8d0-0xe8d3,0xe870-0xe87f
mem 0xdfdeec00-0xdfdeecff irq 32 at device 7.0 on pci4
ata2: <ATA channel 0> on atapci0
ata3: <ATA channel 1> on atapci0
pcib5: <ACPI PCI-PCI bridge> at device 28.4 on pci0
pci5: <ACPI PCI bus> on pcib5
bge0: <Broadcom BCM5750 B1, ASIC rev. 0x4101> mem 0xdf9f0000-0xdf9fffff
irq 16 at device 0.0 on pci5
miibus0: <MII bus> on bge0
brgphy0: <BCM5750 10/100/1000baseTX PHY> on miibus0
brgphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT,
1000baseT-FDX, auto
bge0: Ethernet address: 00:1d:09:f1:14:da
pcib6: <ACPI PCI-PCI bridge> at device 28.5 on pci0
pci6: <ACPI PCI bus> on pcib6
bge1: <Broadcom BCM5750 B1, ASIC rev. 0x4101> mem 0xdf7f0000-0xdf7fffff
irq 17 at device 0.0 on pci6
miibus1: <MII bus> on bge1
brgphy1: <BCM5750 10/100/1000baseTX PHY> on miibus1
brgphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT,
1000baseT-FDX, auto
bge1: Ethernet address: 00:1d:09:f1:14:db
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
0xdff00400-0xdff007ff 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
uhub4: vendor 0x04b4 product 0x6560, class 9/0, rev 2.00/0.0b, addr 2
uhub4: multiple transaction translators
uhub4: 4 ports with 4 removable, self powered
pcib7: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci7: <ACPI PCI bus> on pcib7
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci1: <Intel ICH7 UDMA100 controller> port
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xfc00-0xfc0f at device 31.1 on pci0
ata0: <ATA channel 0> on atapci1
ata1: <ATA channel 1> on atapci1
atapci2: <Intel ICH7 SATA300 controller> port
0xbc98-0xbc9f,0xbc90-0xbc93,0xbc80-0xbc87,0xbc78-0xbc7b,0xbc60-0xbc6f
mem 0xdff00000-0xdff003ff irq 20 at device 31.2 on pci0
ata4: <ATA channel 0> on atapci2
ata5: <ATA channel 1> on atapci2
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
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
orm0: <ISA Option ROMs> at iomem 0xc0000-0xcafff,0xec000-0xeffff 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]
ppc0: cannot reserve I/O port range
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
ukbd0: Dell DRAC4, rev 1.10/0.00, addr 2, iclass 3/1
kbd2 at ukbd0
ums0: Dell DRAC4, rev 1.10/0.00, addr 2, iclass 3/1
ums0: X report 0x0002 not supported
device_attach: ums0 attach returned 6
ukbd1: Dell Dell USB Keyboard, rev 1.10/2.00, addr 2, iclass 3/1
kbd3 at ukbd1
ums0: Dell Dell USB Optical Mouse, rev 2.00/43.01, addr 3, iclass 3/1
ums0: 3 buttons and Z dir.
Timecounters tick every 1.000 msec
hptrr: no controller detected.
acd0: CDROM <TEAC CD-ROM CD-224E-N/3.AC> at ata0-master UDMA33
ad8: 152587MB <WDC WD1600YS-18SHB2 20.06C07> at ata4-master SATA150
GEOM_MIRROR: Device gm0 created (id=126623485).
GEOM_MIRROR: Device gm0: provider ad8 detected.
ad10: 152587MB <WDC WD1600YS-18SHB2 20.06C07> at ata5-master SATA150
GEOM_MIRROR: Device gm0: provider ad10 detected.
GEOM_MIRROR: Device gm0: provider ad10 activated.
GEOM_MIRROR: Device gm0: provider ad8 activated.
GEOM_MIRROR: Device gm0: provider mirror/gm0 launched.
SMP: AP CPU #1 Launched!
Trying to mount root from ufs:/dev/mirror/gm0a
bge0: link state changed to UP
fdc0: <floppy drive controller> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on
acpi0
fdc0: does not respond
device_attach: fdc0 attach returned 6
ipmi0: <IPMI System Interface> on isa0
ipmi0: KCS mode found at io 0xca8 alignment 0x4 on isa
ipmi0: KCS error: ff
ipmi0: IPMI device rev. 0, firmware rev. 1.81, version 1.5
ipmi0: Number of channels 4
ipmi0: Attached watchdog
ppc0: cannot reserve I/O port range
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled