Can anyone think of a better fix than "disable ipmi" to make sensors start showing up again on a (non-M2) X2100 without the management card? Unfortunately I don't have a spare X2100 and I'm a bit limited with what I can try on these ones.
Two dmesg follow (one from October, and one from another box that still has a kernel from May where the sensors were still used). OpenBSD 4.2-current (GENERIC) #1: Mon Oct 22 22:39:43 CEST 2007 [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC cpu0: AMD Opteron(tm) Processor 148 ("AuthenticAMD" 686-class, 1024KB L2 cache) 1.01 GHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3 cpu0: AMD erratum 89 present, BIOS upgrade may be required real mem = 1072103424 (1022MB) avail mem = 1028878336 (981MB) mainbus0 at root bios0 at mainbus0: AT/286+ BIOS, date 11/06/06, BIOS32 rev. 0 @ 0xfa780, SMBIOS rev. 2.3 @ 0xf0000 (41 entries) bios0: vendor Sun Microsystems version "1.1.3" date 11/06/2006 bios0: Sun Microsystems Sun Fire(TM) X2100 apm0 at bios0: Power Management spec V1.2 apm0: AC on, battery charge unknown apm0: flags 70102 dobusy 1 doidle 1 pcibios0 at bios0: rev 3.0 @ 0xf0000/0xcc44 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfcb20/288 (16 entries) pcibios0: bad IRQ table checksum pcibios0: PCI BIOS has 16 Interrupt Routing table entries pcibios0: PCI Exclusive IRQs: 3 5 7 10 11 pcibios0: no compatible PCI ICU found pcibios0: Warning, unable to fix up PCI interrupt routing pcibios0: PCI bus #5 is the last bus bios0: ROM list: 0xc0000/0x8000 0xc8000/0x4000! 0xcc000/0x1600 0xce000/0x1800 ipmi0 at mainbus0: version 1.5 interface KCS iobase 0xca2/2 spacing 1 cpu0 at mainbus0 cpu0: Cool'n'Quiet K8 1006 MHz: speeds: 2200 2000 1800 1000 MHz pci0 at mainbus0 bus 0: configuration mode 1 (no bios) "NVIDIA nForce4 DDR" rev 0xa3 at pci0 dev 0 function 0 not configured pcib0 at pci0 dev 1 function 0 "NVIDIA nForce4 ISA" rev 0xa3 nviic0 at pci0 dev 1 function 1 "NVIDIA nForce4 SMBus" rev 0xa2 iic0 at nviic0 iic0: skipping sensors to avoid ipmi0 interactions spdmem0 at iic0 addr 0x50: 512MB DDR SDRAM ECC PC3200CL3.0 spdmem1 at iic0 addr 0x51: 512MB DDR SDRAM ECC PC3200CL3.0 iic1 at nviic0 iic1: skipping sensors to avoid ipmi0 interactions spdmem2 at iic1 addr 0x50: 512MB DDR SDRAM ECC PC3200CL3.0 spdmem3 at iic1 addr 0x51: 512MB DDR SDRAM ECC PC3200CL3.0 ohci0 at pci0 dev 2 function 0 "NVIDIA nForce4 USB" rev 0xa2: irq 10, version 1.0, legacy support ehci0 at pci0 dev 2 function 1 "NVIDIA nForce4 USB" rev 0xa3: irq 11 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "NVIDIA EHCI root hub" rev 2.00/1.00 addr 1 pciide0 at pci0 dev 6 function 0 "NVIDIA nForce4 IDE" rev 0xf2: DMA, channel 0 configured to compatibility, channel 1 configured to comp atibility pciide0: channel 0 disabled (no drives) pciide0: channel 1 disabled (no drives) pciide1 at pci0 dev 7 function 0 "NVIDIA nForce4 SATA" rev 0xf3: DMA pciide1: using irq 11 for native-PCI interrupt wd0 at pciide1 channel 0 drive 0: <HITACHI HDS7280SASUN80G 0644MT91LM> wd0: 16-sector PIO, LBA48, 76319MB, 156301488 sectors wd0(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 5 pciide2 at pci0 dev 8 function 0 "NVIDIA nForce4 SATA" rev 0xf3: DMA pciide2: using irq 10 for native-PCI interrupt ppb0 at pci0 dev 9 function 0 "NVIDIA nForce4 PCI-PCI" rev 0xa2 pci1 at ppb0 bus 1 vga1 at pci1 dev 5 function 0 "ATI Rage XL" rev 0x27 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) nfe0 at pci0 dev 10 function 0 "NVIDIA CK804 LAN" rev 0xa3: irq 3, address 00:e0:81:5e:15:f0 eephy0 at nfe0 phy 1: Marvell 88E1111 Gigabit PHY, rev. 2 ppb1 at pci0 dev 11 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci2 at ppb1 bus 2 ppb2 at pci0 dev 12 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci3 at ppb2 bus 3 ppb3 at pci0 dev 13 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci4 at ppb3 bus 4 bge0 at pci4 dev 0 function 0 "Broadcom BCM5721" rev 0x11, BCM5750 B1 (0x4101): irq 5, address 00:e0:81:5e:15:f1 brgphy0 at bge0 phy 1: BCM5750 10/100/1000baseT PHY, rev. 0 ppb4 at pci0 dev 14 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci5 at ppb4 bus 5 pchb0 at pci0 dev 24 function 0 "AMD AMD64 HyperTransport" rev 0x00 pchb1 at pci0 dev 24 function 1 "AMD AMD64 Address Map" rev 0x00 pchb2 at pci0 dev 24 function 2 "AMD AMD64 DRAM Cfg" rev 0x00 pchb3 at pci0 dev 24 function 3 "AMD AMD64 Misc Cfg" rev 0x00 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: reported by CPUID; using exception 16 pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pccom0: console usb1 at ohci0: USB revision 1.0 uhub1 at usb1 "NVIDIA OHCI root hub" rev 1.00/1.00 addr 1 biomask ffc5 netmask ffed ttymask ffef pctr: user-level performance counters enabled mtrr: Pentium Pro MTRR support dkcsum: wd0 matches BIOS drive 0x80 root on wd0a swap on wd0b dump on wd0b : reserve send fails ipmi0: no SDRs IPMI disabled OpenBSD 4.1-current (GENERIC.MP) #100: Wed May 23 12:12:14 MDT 2007 [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC.MP cpu0: AMD Opteron(tm) Processor 148 ("AuthenticAMD" 686-class, 1024KB L2 cache) 2.22 GHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3 cpu0: AMD erratum 89 present, BIOS upgrade may be required real mem = 1072103424 (1046976K) avail mem = 970936320 (948180K) using 4278 buffers containing 53731328 bytes (52472K) of memory mainbus0 (root) bios0 at mainbus0: AT/286+ BIOS, date 11/06/06, BIOS32 rev. 0 @ 0xfa780, SMBIOS rev. 2.3 @ 0xf0000 (41 entries) bios0: Sun Microsystems Sun Fire(TM) X2100 apm0 at bios0: Power Management spec V1.2 apm0: AC on, battery charge unknown apm0: flags 70102 dobusy 1 doidle 1 pcibios0 at bios0: rev 3.0 @ 0xf0000/0xcc44 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfcb20/288 (16 entries) pcibios0: bad IRQ table checksum pcibios0: PCI BIOS has 16 Interrupt Routing table entries pcibios0: PCI Exclusive IRQs: 3 5 7 10 11 pcibios0: no compatible PCI ICU found pcibios0: Warning, unable to fix up PCI interrupt routing pcibios0: PCI bus #5 is the last bus bios0: ROM list: 0xc0000/0x8000 0xc8000/0x4000! 0xcc000/0x1600 0xce000/0x1800 acpi at mainbus0 not configured ipmi0 at mainbus0: reserve send fails mainbus0: Intel MP Specification (Version 1.4) cpu0 at mainbus0: apid 0 (boot processor) cpu0: AMD erratum 89 present, BIOS upgrade may be required cpu0: apic clock running at 201 MHz mainbus0: bus 0 is type PCI mainbus0: bus 1 is type PCI mainbus0: bus 2 is type PCI mainbus0: bus 3 is type PCI mainbus0: bus 4 is type PCI mainbus0: bus 5 is type PCI mainbus0: bus 6 is type ISA ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 11, 24 pins ioapic0: conflicting map entries for pin 0 cpu0: Cool'n'Quiet K8 2212 MHz: speeds: 2200 2000 1800 1000 MHz pci0 at mainbus0 bus 0: configuration mode 1 (no bios) "NVIDIA nForce4 DDR" rev 0xa3 at pci0 dev 0 function 0 not configured pcib0 at pci0 dev 1 function 0 "NVIDIA nForce4 ISA" rev 0xa3 nviic0 at pci0 dev 1 function 1 "NVIDIA nForce4 SMBus" rev 0xa2 iic0 at nviic0 adt0 at iic0 addr 0x2e: sch5017 rev 0x89 iic1 at nviic0 adt1 at iic1 addr 0x2e: sch5017 rev 0x89 ohci0 at pci0 dev 2 function 0 "NVIDIA nForce4 USB" rev 0xa2: apic 2 int 10 (irq 10), version 1.0, legacy support ehci0 at pci0 dev 2 function 1 "NVIDIA nForce4 USB" rev 0xa3: apic 2 int 11 (irq 11) usb0 at ehci0: USB revision 2.0 uhub0 at usb0 uhub0: NVIDIA EHCI root hub, rev 2.00/1.00, addr 1 uhub0: 8 ports with 8 removable, self powered pciide0 at pci0 dev 6 function 0 "NVIDIA nForce4 IDE" rev 0xf2: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility pciide0: channel 0 disabled (no drives) pciide0: channel 1 disabled (no drives) pciide1 at pci0 dev 7 function 0 "NVIDIA nForce4 SATA" rev 0xf3: DMA pciide1: using apic 2 int 11 (irq 11) for native-PCI interrupt wd0 at pciide1 channel 0 drive 0: <ST380215AS> wd0: 16-sector PIO, LBA48, 76319MB, 156301488 sectors wd0(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 5 pciide2 at pci0 dev 8 function 0 "NVIDIA nForce4 SATA" rev 0xf3: DMA pciide2: using apic 2 int 10 (irq 10) for native-PCI interrupt ppb0 at pci0 dev 9 function 0 "NVIDIA nForce4 PCI-PCI" rev 0xa2 pci1 at ppb0 bus 1 vga1 at pci1 dev 5 function 0 "ATI Rage XL" rev 0x27 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) nfe0 at pci0 dev 10 function 0 "NVIDIA CK804 LAN" rev 0xa3: apic 2 int 3 (irq 3), address 00:e0:81:5e:43:16 eephy0 at nfe0 phy 1: Marvell 88E1111 Gigabit PHY, rev. 2 ppb1 at pci0 dev 11 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci2 at ppb1 bus 2 ppb2 at pci0 dev 12 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci3 at ppb2 bus 3 ppb3 at pci0 dev 13 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci4 at ppb3 bus 4 bge0 at pci4 dev 0 function 0 "Broadcom BCM5721" rev 0x11, BCM5750 B1 (0x4101): apic 2 int 5 (irq 5), address 00:e0:81:5e:43:17 brgphy0 at bge0 phy 1: BCM5750 10/100/1000baseT PHY, rev. 0 ppb4 at pci0 dev 14 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci5 at ppb4 bus 5 pchb0 at pci0 dev 24 function 0 "AMD AMD64 HyperTransport" rev 0x00 pchb1 at pci0 dev 24 function 1 "AMD AMD64 Address Map" rev 0x00 pchb2 at pci0 dev 24 function 2 "AMD AMD64 DRAM Cfg" rev 0x00 pchb3 at pci0 dev 24 function 3 "AMD AMD64 Misc Cfg" rev 0x00 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: reported by CPUID; using exception 16 pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pccom0: console usb1 at ohci0: USB revision 1.0 uhub1 at usb1 uhub1: NVIDIA OHCI root hub, rev 1.00/1.00, addr 1 uhub1: 8 ports with 8 removable, self powered pctr: user-level cycle counter enabled mtrr: Pentium Pro MTRR support dkcsum: wd0 matches BIOS drive 0x80 root on wd0a swap on wd0b dump on wd0b