Hi, after some sleep and coffee I am embarrassed to realize I made two mistakes: - I didn't provide a GENERIC(.MP) dmesg - I booted off the non-acpi-enabled kernel Sorry for that. Below you can see two GENERIC.MP dmesgs (i386/amd64) which clearly show that acpi is enabled and detected. However, one Problem remains: The interrupt load is very high on GENERIC/amd64 (with and without MP, with and without acpi) - about 70% of one cpu core on the idle machine. Different is GENERIC.MP/i386, which has low (normal) interrupt load.
Shall I ditch amd64 and run i386 on the machine, or is there anything I can try? OpenBSD 4.2 (GENERIC.MP) #252: Tue Aug 28 10:53:04 MDT 2007 [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC.MP cpu0: AMD Athlon(tm) 64 X2 Dual Core Processor 6000+ ("AuthenticAMD" 686-class, 1024KB L2 cache) 3 GHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,CX16 real mem = 3220729856 (3071MB) avail mem = 3121356800 (2976MB) mainbus0 at root bios0 at mainbus0: AT/286+ BIOS, date 03/01/07, BIOS32 rev. 0 @ 0xf0010, SMBIOS rev. 2.4 @ 0xfbcf0 (50 entries) bios0: vendor American Megatrends Inc. version "080011 " date 03/01/2007 bios0: Supermicro H8SSL-I2 pcibios0 at bios0: rev 2.1 @ 0xf0000/0x10000 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xf4d40/176 (9 entries) pcibios0: no compatible PCI ICU found: ICU vendor 0x1166 product 0x0205 pcibios0: PCI bus #2 is the last bus bios0: ROM list: 0xc0000/0xb000 0xcb000/0x2000! acpi0 at mainbus0: rev 0 acpi0: tables DSDT FACP APIC OEMB acpitimer at acpi0 not configured acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: apic clock running at 199 MHz cpu1 at mainbus0: apid 1 (application processor) cpu1: AMD Athlon(tm) 64 X2 Dual Core Processor 6000+ ("AuthenticAMD" 686-class, 1024KB L2 cache) 3 GHz cpu1: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,CX16 ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 11, 16 pins ioapic1 at mainbus0: apid 3 pa 0xfec01000, version 11, 16 pins ioapic2 at mainbus0: apid 4 pa 0xfec02000, version 11, 16 pins acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 1 (P0P1) acpiprt2 at acpi0: bus 2 (P1P2) acpicpu at acpi0 not configured acpicpu at acpi0 not configured acpibtn at acpi0 not configured acpibtn at acpi0 not configured pci0 at mainbus0 bus 0: configuration mode 1 (no bios) ppb0 at pci0 dev 1 function 0 "ServerWorks HT-1000 PCI" rev 0x00 pci1 at ppb0 bus 1 ppb1 at pci1 dev 13 function 0 "ServerWorks HT-1000 PCIX" rev 0xb2 pci2 at ppb1 bus 2 bge0 at pci2 dev 3 function 0 "Broadcom BCM5704C" rev 0x10, BCM5704 B0 (0x2100): apic 3 int 8 (irq 9), address 00:30:48:5e:6d:f6 brgphy0 at bge0 phy 1: BCM5704 10/100/1000baseT PHY, rev. 0 bge1 at pci2 dev 3 function 1 "Broadcom BCM5704C" rev 0x10, BCM5704 B0 (0x2100): apic 3 int 9 (irq 5), address 00:30:48:5e:6d:f7 brgphy1 at bge1 phy 1: BCM5704 10/100/1000baseT PHY, rev. 0 pciide0 at pci1 dev 14 function 0 "ServerWorks HT-1000 SATA" rev 0x00: DMA pciide0: using apic 2 int 11 (irq 11) for native-PCI interrupt pciide0: port 0: device present, speed: 1.5Gb/s wd0 at pciide0 channel 0 drive 0: <ST3320620AS> wd0: 16-sector PIO, LBA48, 305245MB, 625142448 sectors wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5 pciide0: port 1: device present, speed: 1.5Gb/s wd1 at pciide0 channel 1 drive 0: <ST3320620AS> wd1: 16-sector PIO, LBA48, 305245MB, 625142448 sectors wd1(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 5 pciide0: port 2: PHY offline pciide0: port 3: PHY offline pciide1 at pci1 dev 14 function 1 "ServerWorks HT-1000 SATA" rev 0x00 piixpm0 at pci0 dev 2 function 0 "ServerWorks HT-1000" rev 0x00: polling iic0 at piixpm0 iic0: addr 0x2f 00=80 05=a8 06=ff 07=a8 08=ff 09=64 0a=64 0b=5e 0c=73 0d=5c 0e=7b 0f=12 10=b0 11=2e 13=ff 14=22 15=6f 16=d0 17=7b 18=d0 19=d0 1a=bf 1b=0f 1c=1f 1d=9c 1e=80 1f=80 20=1d 21=51 22=03 23=0f 25=0f 27=0f 29=0f 2b=0f 3b=ff 3c=ff 3d=ff 3e=ff 3f=ff 40=09 44=40 46=f7 47=ff 48=ff 49=7f 4a=3f 4b=02 4d=7c 50=1e 51=02 52=01 58=80 59=01 5c=03 5e=55 5f=03 60=ca 61=87 62=ca 63=87 64=ff 66=ff 67=ff 68=3f 6a=2b 6b=18 6c=7c 6d=65 6e=e3 6f=b9 70=8a 71=70 72=e5 73=bb 74=e5 75=bb 76=e3 77=b9 78=48 79=43 7a=48 7b=43 7c=48 7d=5f 7e=55 7f=50 80=64 81=5f 82=55 83=50 84=64 85=5f 86=55 87=50 88=46 89=41 8a=55 8b=50 8c=64 8d=5f 8e=55 8f=50 90=07 91=68 92=07 93=68 94=07 95=68 96=07 97=68 98=07 99=68 9a=07 9b=68 9c=07 9d=68 9e=ff 9f=ff a0=ff a1=ff a2=ff a3=ff a4=ff a5=ff a6=ff a7=ff a8=f5 ae=ff af=ff b1=04 b2=30 b3=30 b4=30 b5=30 b6=30 b7=30 b8=30 b9=30 ba=30 bb=89 bc=89 bd=89 be=89 bf=89 c0=89 c1=89 c2=89 c3=01 c4=01 c5=7f c6=ff c9=ff ca=ff cb=ff cc=ff cd=ff ce=ff cf=ff d1=46 d2=46 d3=46 d4=46 d6=f0 d7=ff d8=80 d9=01 da=80 db=01 dc=80 dd=01 de=80 df=01 e0=bb e1=c0 e2=82 e3=ff e4=80 e5=06 e6=fe e7=12 e8=12 e9=12 ea=c8 eb=60 ec=ff ed=ff ee=ff ef=ff f6=60 f7=80 f8=1b fa=ff fd=10 piixpm0: exec: op 1, addr 0x4b, cmdlen 1, len 1, flags 0x08: timeout, status 0x9<BUSY,BUSERR> pciide2 at pci0 dev 2 function 1 "ServerWorks HT-1000 IDE" rev 0x00: DMA atapiscsi0 at pciide2 channel 0 drive 1 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <TEAC, DV-28E-R, 1.8A> SCSI0 5/cdrom removable cd0(pciide2:0:1): using PIO mode 4, DMA mode 2, Ultra-DMA mode 0 pcib0 at pci0 dev 2 function 2 "ServerWorks HT-1000 LPC" rev 0x00 ohci0 at pci0 dev 3 function 0 "ServerWorks HT-1000 USB" rev 0x01: apic 2 int 10 (irq 10), version 1.0, legacy support ohci1 at pci0 dev 3 function 1 "ServerWorks HT-1000 USB" rev 0x01: apic 2 int 10 (irq 10), version 1.0, legacy support ehci0 at pci0 dev 3 function 2 "ServerWorks HT-1000 USB" rev 0x01: apic 2 int 10 (irq 10) usb0 at ehci0: USB revision 2.0 uhub0 at usb0: ServerWorks EHCI root hub, rev 2.00/1.00, addr 1 vga1 at pci0 dev 5 function 0 "ATI ES1000" rev 0x02 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) 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 pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo 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 ohci0: USB revision 1.0 uhub1 at usb1: ServerWorks OHCI root hub, rev 1.00/1.00, addr 1 usb2 at ohci1: USB revision 1.0 uhub2 at usb2: ServerWorks OHCI root hub, rev 1.00/1.00, addr 1 pctr: user-level cycle counter enabled mtrr: Pentium Pro MTRR support dkcsum: wd0 matches BIOS drive 0x81 dkcsum: wd1 matches BIOS drive 0x80 root on wd1a swap on wd1b dump on wd1b OpenBSD 4.2 (GENERIC.MP) #1378: Tue Aug 28 10:48:58 MDT 2007 [EMAIL PROTECTED]:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 3220762624 (3071MB) avail mem = 3112398848 (2968MB) mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xfbcf0 (50 entries) bios0: vendor American Megatrends Inc. version "080011 " date 03/01/2007 bios0: Supermicro H8SSL-I2 acpi0 at mainbus0: rev 2 acpi0: tables DSDT FACP APIC OEMB acpitimer at acpi0 not configured acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: AMD Athlon(tm) 64 X2 Dual Core Processor 6000+, 2992.91 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,CX16,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 1MB 64b/line 16-way L2 cache cpu0: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu0: DTLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu0: apic clock running at 199MHz cpu1 at mainbus0: apid 1 (application processor) cpu1: AMD Athlon(tm) 64 X2 Dual Core Processor 6000+, 2992.50 MHz cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,CX16,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu1: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 1MB 64b/line 16-way L2 cache cpu1: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu1: DTLB 32 4KB entries fully associative, 8 4MB entries fully associative ioapic0 at mainbus0 apid 2 pa 0xfec00000, version 11, 16 pins ioapic1 at mainbus0 apid 3 pa 0xfec01000, version 11, 16 pins ioapic2 at mainbus0 apid 4 pa 0xfec02000, version 11, 16 pins acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 1 (P0P1) acpiprt2 at acpi0: bus 2 (P1P2) acpicpu at acpi0 not configured acpicpu at acpi0 not configured acpibtn at acpi0 not configured acpibtn at acpi0 not configured pci0 at mainbus0 bus 0: configuration mode 1 ppb0 at pci0 dev 1 function 0 "ServerWorks HT-1000 PCI" rev 0x00 pci1 at ppb0 bus 1 ppb1 at pci1 dev 13 function 0 "ServerWorks HT-1000 PCIX" rev 0xb2 pci2 at ppb1 bus 2 bge0 at pci2 dev 3 function 0 "Broadcom BCM5704C" rev 0x10, BCM5704 B0 (0x2100): apic 3 int 8 (irq 9), address 00:30:48:5e:6d:f6 brgphy0 at bge0 phy 1: BCM5704 10/100/1000baseT PHY, rev. 0 bge1 at pci2 dev 3 function 1 "Broadcom BCM5704C" rev 0x10, BCM5704 B0 (0x2100): apic 3 int 9 (irq 5), address 00:30:48:5e:6d:f7 brgphy1 at bge1 phy 1: BCM5704 10/100/1000baseT PHY, rev. 0 pciide0 at pci1 dev 14 function 0 "ServerWorks HT-1000 SATA" rev 0x00: DMA pciide0: using apic 2 int 11 (irq 11) for native-PCI interrupt pciide0: port 0: device present, speed: 1.5Gb/s wd0 at pciide0 channel 0 drive 0: <ST3320620AS> wd0: 16-sector PIO, LBA48, 305245MB, 625142448 sectors wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5 pciide0: port 1: device present, speed: 1.5Gb/s wd1 at pciide0 channel 1 drive 0: <ST3320620AS> wd1: 16-sector PIO, LBA48, 305245MB, 625142448 sectors wd1(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 5 pciide0: port 2: PHY offline pciide0: port 3: PHY offline pciide1 at pci1 dev 14 function 1 "ServerWorks HT-1000 SATA" rev 0x00 piixpm0 at pci0 dev 2 function 0 "ServerWorks HT-1000" rev 0x00: polling iic0 at piixpm0 iic0: addr 0x2f 00=80 05=a8 06=ff 07=a0 08=ff 09=64 0a=64 0b=5e 0c=73 0d=5c 0e=7b 0f=12 10=b1 11=2f 13=ff 14=22 15=6f 16=d0 17=7a 18=d0 19=d0 1a=bf 1b=03 1c=21 1d=9b 1e=80 1f=80 20=1d 21=51 22=01 23=0f 25=0f 27=0f 29=0f 2b=0f 3b=ff 3c=ff 3d=ff 3e=ff 3f=ff 40=09 44=40 46=f7 47=ff 48=ff 49=7f 4a=3f 4b=02 4d=7c 50=1e 51=02 52=01 58=80 59=01 5c=03 5e=55 5f=03 60=ca 61=87 62=ca 63=87 64=ff 66=ff 67=ff 68=3f 6a=2b 6b=18 6c=7c 6d=65 6e=e3 6f=b9 70=8a 71=70 72=e5 73=bb 74=e5 75=bb 76=e3 77=b9 78=48 79=43 7a=48 7b=43 7c=48 7d=5f 7e=55 7f=50 80=64 81=5f 82=55 83=50 84=64 85=5f 86=55 87=50 88=46 89=41 8a=55 8b=50 8c=64 8d=5f 8e=55 8f=50 90=07 91=68 92=07 93=68 94=07 95=68 96=07 97=68 98=07 99=68 9a=07 9b=68 9c=07 9d=68 9e=ff 9f=ff a0=ff a1=ff a2=ff a3=ff a4=ff a5=ff a6=ff a7=ff a8=f5 ae=ff af=ff b1=04 b2=30 b3=30 b4=30 b5=30 b6=30 b7=30 b8=30 b9=30 ba=30 bb=89 bc=89 bd=89 be=89 bf=89 c0=89 c1=89 c2=89 c3=01 c4=01 c5=7f c6=ff c9=ff ca=ff cb=ff cc=ff cd=ff ce=ff cf=ff d1=46 d2=46 d3=46 d4=46 d6=f0 d7=ff d8=80 d9=01 da=80 db=01 dc=80 dd=01 de=80 df=01 e0=bb e1=c0 e2=82 e3=ff e4=80 e5=06 e6=fe e7=12 e8=12 e9=12 ea=c8 eb=60 ec=ff ed=ff ee=ff ef=ff f6=60 f7=80 f8=1b fa=ff fd=10 piixpm0: exec: op 1, addr 0x4b, cmdlen 1, len 1, flags 0x08: timeout, status 0x9<BUSY,BUSERR> pciide2 at pci0 dev 2 function 1 "ServerWorks HT-1000 IDE" rev 0x00: DMA atapiscsi0 at pciide2 channel 0 drive 1 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <TEAC, DV-28E-R, 1.8A> SCSI0 5/cdrom removable cd0(pciide2:0:1): using PIO mode 4, DMA mode 2, Ultra-DMA mode 0 pcib0 at pci0 dev 2 function 2 "ServerWorks HT-1000 LPC" rev 0x00 ohci0 at pci0 dev 3 function 0 "ServerWorks HT-1000 USB" rev 0x01: apic 2 int 10 (irq 10), version 1.0, legacy support ohci1 at pci0 dev 3 function 1 "ServerWorks HT-1000 USB" rev 0x01: apic 2 int 10 (irq 10), version 1.0, legacy support ehci0 at pci0 dev 3 function 2 "ServerWorks HT-1000 USB" rev 0x01: apic 2 int 10 (irq 10) usb0 at ehci0: USB revision 2.0 uhub0 at usb0: ServerWorks EHCI root hub, rev 2.00/1.00, addr 1 vga1 at pci0 dev 5 function 0 "ATI ES1000" rev 0x02 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) 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 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 pcppi0 at isa0 port 0x61 midi0 at pcppi0: <PC speaker> spkr0 at pcppi0 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 ohci0: USB revision 1.0 uhub1 at usb1: ServerWorks OHCI root hub, rev 1.00/1.00, addr 1 usb2 at ohci1: USB revision 1.0 uhub2 at usb2: ServerWorks OHCI root hub, rev 1.00/1.00, addr 1 dkcsum: wd0 matches BIOS drive 0x80 dkcsum: wd1 matches BIOS drive 0x81 root on wd0a swap on wd0b dump on wd0b greetings, knitti