Running stable OpenBSD 5.2 and in the top I see high interrupt CPU utilization despite machine being idle. I am not sure if I should be worried or if the is some sort of bug. Please advise.
dmesg: OpenBSD 5.2-stable (MERCURY.MP) #0: Sun Jan 27 21:58:30 JST 2013 r...@mercury.askyan.com:/usr/src/sys/arch/amd64/compile/MERCURY.MP real mem = 4149907456 (3957MB) avail mem = 4017065984 (3830MB) mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xeb770 (76 entries) bios0: vendor American Megatrends Inc. version "V1.1" date 07/30/2012 bios0: MSI MS-7808 acpi0 at bios0: rev 2 acpi0: sleep states S0 S3 S4 S5 acpi0: tables DSDT FACP APIC FPDT MCFG HPET SSDT SSDT SSDT ASF! acpi0: wakeup devices PS2K(S3) PS2M(S3) P0P1(S4) USB1(S3) USB2(S3) USB3(S3) USB4(S3) USB5(S3) USB6(S3) USB7(S3) PXSX(S4) RP01(S4) PXSX(S4) RP02(S4) PXSX(S4) RP03(S4) PXSX(S4) RP04(S4) PXSX(S4) RP05(S4) PXSX(S4) RP06(S4) PXSX(S4) RP07(S4) PXSX(S4) RP08(S4) PEGP(S4) PEG0(S4) PEG1(S4) PEG2(S4) PEG3(S4) GLAN(S4) EHC1(S4) EHC2(S4) XHC_(S4) HDEF(S4) PWRB(S3) acpitimer0 at acpi0: 3579545 Hz, 24 bits acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: Intel(R) Core(TM) i3-3220T CPU @ 2.80GHz, 2794.06 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,PCLMUL,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,POPCNT,XSAVE,AVX,NXE,LONG,LAHF cpu0: 256KB 64b/line 8-way L2 cache cpu0: apic clock running at 99MHz cpu1 at mainbus0: apid 2 (application processor) cpu1: Intel(R) Core(TM) i3-3220T CPU @ 2.80GHz, 2793.66 MHz cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,PCLMUL,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,POPCNT,XSAVE,AVX,NXE,LONG,LAHF cpu1: 256KB 64b/line 8-way L2 cache ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63 acpihpet0 at acpi0: 14318179 Hz acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 4 (P0P1) acpiprt2 at acpi0: bus 2 (RP01) acpiprt3 at acpi0: bus 3 (RP02) acpiprt4 at acpi0: bus -1 (RP03) acpiprt5 at acpi0: bus -1 (RP04) acpiprt6 at acpi0: bus -1 (RP05) acpiprt7 at acpi0: bus -1 (RP06) acpiprt8 at acpi0: bus -1 (RP07) acpiprt9 at acpi0: bus -1 (RP08) acpiprt10 at acpi0: bus 1 (PEG0) acpiprt11 at acpi0: bus -1 (PEG1) acpiprt12 at acpi0: bus -1 (PEG2) acpiprt13 at acpi0: bus -1 (PEG3) acpiec0 at acpi0: Failed to read resource settings acpicpu0 at acpi0: C3, C1, PSS acpicpu1 at acpi0: C3, C1, PSS acpipwrres0 at acpi0: FN00 acpipwrres1 at acpi0: FN01 acpipwrres2 at acpi0: FN02 acpipwrres3 at acpi0: FN03 acpipwrres4 at acpi0: FN04 acpitz0 at acpi0: critical temperature is 92 degC acpitz1 at acpi0: critical temperature is 92 degC acpibat0 at acpi0: BAT0 not present acpibat1 at acpi0: BAT1 not present acpibat2 at acpi0: BAT2 not present acpibtn0 at acpi0: PWRB acpibtn1 at acpi0: LID0 acpivideo0 at acpi0: GFX0 acpivout0 at acpivideo0: DD02 cpu0: Enhanced SpeedStep 2794 MHz: speeds: 2800, 2700, 2600, 2500, 2400, 2300, 2200, 2100, 2000, 1900, 1800, 1700, 1600 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "Intel Xeon E3-1200v2 Host" rev 0x09 ppb0 at pci0 dev 1 function 0 vendor "Intel", unknown product 0x0151 rev 0x09: msi pci1 at ppb0 bus 1 em0 at pci1 dev 0 function 0 "Intel PRO/1000 PT (82571EB)" rev 0x06: apic 2 int 16, address 00:15:17:21:2a:3e em1 at pci1 dev 0 function 1 "Intel PRO/1000 PT (82571EB)" rev 0x06: apic 2 int 17, address 00:15:17:21:2a:3f vga1 at pci0 dev 2 function 0 "Intel HD Graphics 2500" rev 0x09 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) intagp at vga1 not configured "Intel 7 Series xHCI" rev 0x04 at pci0 dev 20 function 0 not configured "Intel 7 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured ehci0 at pci0 dev 26 function 0 "Intel 7 Series USB" rev 0x04: apic 2 int 16 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 ppb1 at pci0 dev 28 function 0 "Intel 7 Series PCIE" rev 0xc4: msi pci2 at ppb1 bus 2 ppb2 at pci0 dev 28 function 1 "Intel 7 Series PCIE" rev 0xc4: msi pci3 at ppb2 bus 3 re0 at pci3 dev 0 function 0 "Realtek 8168" rev 0x06: RTL8168E/8111E-VL (0x2c80), apic 2 int 17, address d4:3d:7e:35:62:7b rgephy0 at re0 phy 7: RTL8169S/8110S PHY, rev. 5 ehci1 at pci0 dev 29 function 0 "Intel 7 Series USB" rev 0x04: apic 2 int 23 usb1 at ehci1: USB revision 2.0 uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1 ppb3 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0xa4 pci4 at ppb3 bus 4 pcib0 at pci0 dev 31 function 0 "Intel B75 LPC" rev 0x04 ahci0 at pci0 dev 31 function 2 "Intel 7 Series AHCI" rev 0x04: msi, AHCI 1.3 scsibus0 at ahci0: 32 targets sd0 at scsibus0 targ 0 lun 0: <ATA, M4-CT064M4SSD2, 040H> SCSI3 0/direct fixed naa.500a075109196cd0 sd0: 61057MB, 512 bytes/sector, 125045424 sectors, thin ichiic0 at pci0 dev 31 function 3 "Intel 7 Series SMBus" rev 0x04: apic 2 int 18 iic0 at ichiic0 spdmem0 at iic0 addr 0x50: 4GB DDR3 SDRAM PC3-12800 isa0 at pcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo com0: probed fifo depth: 15 bytes 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 spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 mtrr: Pentium Pro MTRR support uhub2 at uhub0 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2 uhidev0 at uhub2 port 1 configuration 1 interface 0 "vendor 0x04f3 product 0x0103" rev 1.10/1.07 addr 3 uhidev0: iclass 3/1 ukbd0 at uhidev0: 8 variable keys, 6 key codes wskbd1 at ukbd0 mux 1 wskbd1: connecting to wsdisplay0 uhidev1 at uhub2 port 1 configuration 1 interface 1 "vendor 0x04f3 product 0x0103" rev 1.10/1.07 addr 3 uhidev1: iclass 3/0, 2 report ids uhid0 at uhidev1 reportid 1: input=2, output=0, feature=0 uhid1 at uhidev1 reportid 2: input=1, output=0, feature=0 uhub3 at uhub1 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2 vmstat: 1 users Load 0.20 0.33 0.38 Thu Jan 31 01:58:55 2013 memory totals (in KB) PAGING SWAPPING Interrupts real virtual free in out in out 205 total Active 1156244 1156244 167332 ops 200 clock All 3763872 3763872 1211556 pages 2 ipi 1 em0 Proc:r d s w Csw Trp Sys Int Sof Flt forks ehci0 6 6 12 1 30172026 101 7 fkppw ehci1 fksvm 2 ahci0 20.6%Int 0.0%Sys 0.0%Usr 0.0%Nic 79.4%Idle pwait | | | | | | | | | | | relck |||||||||| rlkok noram Namei Sys-cache Proc-cache No-cache ndcpy Calls hits % hits % miss % fltcp 21 21 100 zfod cow Disks sd0 32760 fmin seeks 43680 ftarg xfers 2 103367 itarg speed 26K 2 wired sec 0.0 pdfre pdscn pzidle 13 kmapent -- View this message in context: http://openbsd.7691.n7.nabble.com/OpenBSD-5-2-high-idle-interrupts-with-stable-amd64-bsd-mp-tp222817.html Sent from the openbsd user - misc mailing list archive at Nabble.com.