Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    {irq16: em1 ehci0} taking up 75% of cpu

    Scheduled Pinned Locked Moved Hardware
    54 Posts 6 Posters 23.8k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • B
      Bai Shen
      last edited by

      @wallabybob:

      I've seen this sort of thing happen when the BIOS provides incorrect interrupt data. For example, if the BIOS says a device interrupts on irq18 when it really interrupts on irq16 the driver's interrupt handler will get attached to irq18 but the real interrupt goes to irq16 where it doesn't get handled (because the correct handler doesn't get called) and the interrupt request doesn't get cleared until there is an irq18 interrupt and the correct handler is called. Do you have the latest BIOS?

      Yep.

      @wallabybob:

      I think it is unlikely.

      I figured, but I thought I'd mention it just in case.

      @wallabybob:

      Please post the output of pfSense shell command: pciconf -l -v; vmstat -i and the names of a

      The names of a what?

      1 Reply Last reply Reply Quote 0
      • W
        wallabybob
        last edited by

        @Bai:

        @wallabybob:

        Please post the output of pfSense shell command: pciconf -l -v; vmstat -i and the names of a

        The names of a what?

        Sorry, just the output of the shell command pciconf -l -v; devinfo -r; vmstat -i will do.

        1 Reply Last reply Reply Quote 0
        • B
          Bai Shen
          last edited by

          Well, I turned off Legacy USB and USB 3 in the BIOS, and the problem seems to have gone away.  It's now idling at a nice 39W. :)

          Will the output of the commands still be worthwhile?

          1 Reply Last reply Reply Quote 0
          • W
            wallabybob
            last edited by

            @Bai:

            Will the output of the commands still be worthwhile?

            No - seems like a USB related problem.

            1 Reply Last reply Reply Quote 0
            • B
              Bai Shen
              last edited by

              @wallabybob:

              @Bai:

              Will the output of the commands still be worthwhile?

              No - seems like a USB related problem.

              Actually, it looks like it's not. :(  It just took a while before it came back. :(

              Here's the output.

              
              $ pciconf -l -v; devinfo -r; vmstat -i
              hostb0@pci0:0:0:0:	class=0x060000 card=0x20038086 chip=0x01008086 rev=0x09 hdr=0x00
                  class      = bridge
                  subclass   = HOST-PCI
              vgapci0@pci0:0:2:0:	class=0x030000 card=0x20038086 chip=0x01028086 rev=0x09 hdr=0x00
                  class      = display
                  subclass   = VGA
              none0@pci0:0:22:0:	class=0x078000 card=0x20038086 chip=0x1c3a8086 rev=0x04 hdr=0x00
                  class      = simple comms
              em0@pci0:0:25:0:	class=0x020000 card=0x20038086 chip=0x15038086 rev=0x05 hdr=0x00
                  class      = network
                  subclass   = ethernet
              ehci0@pci0:0:26:0:	class=0x0c0320 card=0x20038086 chip=0x1c2d8086 rev=0x05 hdr=0x00
                  class      = serial bus
                  subclass   = USB
              none1@pci0:0:27:0:	class=0x040300 card=0x20038086 chip=0x1c208086 rev=0x05 hdr=0x00
                  class      = multimedia
                  subclass   = HDA
              pcib1@pci0:0:28:0:	class=0x060400 card=0x20038086 chip=0x1c108086 rev=0xb5 hdr=0x01
                  class      = bridge
                  subclass   = PCI-PCI
              ehci1@pci0:0:29:0:	class=0x0c0320 card=0x20038086 chip=0x1c268086 rev=0x05 hdr=0x00
                  class      = serial bus
                  subclass   = USB
              isab0@pci0:0:31:0:	class=0x060100 card=0x20038086 chip=0x1c4a8086 rev=0x05 hdr=0x00
                  class      = bridge
                  subclass   = PCI-ISA
              atapci0@pci0:0:31:2:	class=0x010601 card=0x20038086 chip=0x1c028086 rev=0x05 hdr=0x00
                  class      = mass storage
                  subclass   = SATA
              none2@pci0:0:31:3:	class=0x0c0500 card=0x20038086 chip=0x1c228086 rev=0x05 hdr=0x00
                  class      = serial bus
                  subclass   = SMBus
              pcib2@pci0:1:0:0:	class=0x060400 card=0x20038086 chip=0x88921283 rev=0x10 hdr=0x01
                  class      = bridge
                  subclass   = PCI-PCI
              em1@pci0:2:0:0:	class=0x020000 card=0x13768086 chip=0x107c8086 rev=0x05 hdr=0x00
                  class      = network
                  subclass   = ethernet
              em2@pci0:2:1:0:	class=0x020000 card=0x13768086 chip=0x107c8086 rev=0x05 hdr=0x00
                  class      = network
                  subclass   = ethernet
              em3@pci0:2:2:0:	class=0x020000 card=0x13768086 chip=0x107c8086 rev=0x05 hdr=0x00
                  class      = network
                  subclass   = ethernet
              nexus0
                cryptosoft0
                apic0
                ram0
                    I/O memory addresses:
                        0x0-0x9cfff
                        0x100000-0x1fffffff
                        0x20200000-0x3fffffff
                        0x40200000-0xda969fff
                        0xdabc9000-0xdabc9fff
                        0xdae8e000-0xdaffffff
                npx0
                acpi0
                    Interrupt request lines:
                        9
                    I/O ports:
                        0x10-0x1f
                        0x22-0x3f
                        0x44-0x5f
                        0x62-0x63
                        0x65-0x6f
                        0x72-0x7f
                        0x80
                        0x84-0x86
                        0x88
                        0x8c-0x8e
                        0x90-0x9f
                        0xa2-0xbf
                        0xe0-0xef
                        0x400-0x453
                        0x454-0x457
                        0x458-0x47f
                        0x4d0-0x4d1
                        0x500-0x57f
                        0x1180-0x119f
                    I/O memory addresses:
                        0xf8000000-0xfbffffff
                        0xfec00000-0xfecfffff
                        0xfed08000-0xfed08fff
                        0xfed10000-0xfed19fff
                        0xfed1c000-0xfed1ffff
                        0xfed20000-0xfed3ffff
                        0xfed90000-0xfed93fff
                        0xfee00000-0xfee0ffff
                        0xff000000-0xffffffff
                  cpu0
                      ACPI I/O ports:
                          0x414
                          0x415
                    acpi_perf0
                    est0
                    p4tcc0
                    cpufreq0
                  cpu1
                      ACPI I/O ports:
                          0x414
                          0x415
                    acpi_perf1
                    est1
                    p4tcc1
                    cpufreq1
                  cpu2
                      ACPI I/O ports:
                          0x414
                          0x415
                    acpi_perf2
                    est2
                    p4tcc2
                    cpufreq2
                  cpu3
                      ACPI I/O ports:
                          0x414
                          0x415
                    acpi_perf3
                    est3
                    p4tcc3
                    cpufreq3
                  pcib0
                    pci0
                        I/O ports:
                            0xf000-0xf03f
                            0xf040-0xf05f
                            0xf080-0xf09f
                            0xf0a0-0xf0a3
                            0xf0b0-0xf0b7
                            0xf0c0-0xf0c3
                            0xf0d0-0xf0d7
                        I/O memory addresses:
                            0xe0000000-0xefffffff
                            0xfe000000-0xfe3fffff
                            0xfe720000-0xfe723fff
                            0xfe724000-0xfe7240ff
                            0xfe729000-0xfe72900f
                      hostb0
                      vgapci0
                      em0
                          Interrupt request lines:
                              256
                          I/O memory addresses:
                              0xfe700000-0xfe71ffff
                              0xfe728000-0xfe728fff
                      ehci0
                          Interrupt request lines:
                              16
                          I/O memory addresses:
                              0xfe727000-0xfe7273ff
                        usbus0
                          uhub0
                            uhub2
                      pcib1
                        pci1
                          pcib2
                            pci2
                                I/O memory addresses:
                                    0xfe420000-0xfe43ffff
                                    0xfe480000-0xfe49ffff
                                    0xfe4e0000-0xfe4fffff
                              em1
                                  Interrupt request lines:
                                      16
                                  I/O ports:
                                      0xe080-0xe0bf
                                  I/O memory addresses:
                                      0xfe500000-0xfe51ffff
                              em2
                                  Interrupt request lines:
                                      17
                                  I/O ports:
                                      0xe040-0xe07f
                                  I/O memory addresses:
                                      0xfe4a0000-0xfe4bffff
                              em3
                                  Interrupt request lines:
                                      18
                                  I/O ports:
                                      0xe000-0xe03f
                                  I/O memory addresses:
                                      0xfe440000-0xfe45ffff
                      ehci1
                          Interrupt request lines:
                              23
                          I/O memory addresses:
                              0xfe726000-0xfe7263ff
                        usbus1
                          uhub1
                            uhub3
                      isab0
                        isa0
                          pmtimer0
                          sc0
                          vga0
                              I/O ports:
                                  0x3c0-0x3df
                              I/O memory addresses:
                                  0xa0000-0xbffff
                          ata0
                              Interrupt request lines:
                                  14
                              I/O ports:
                                  0x1f0-0x1f7
                                  0x3f6
                          ata1
                              Interrupt request lines:
                                  15
                              I/O ports:
                                  0x170-0x177
                                  0x376
                          atkbdc0
                              I/O ports:
                                  0x60
                                  0x64
                            atkbd0
                                Interrupt request lines:
                                    1
                      atapci0
                          Interrupt request lines:
                              19
                          I/O ports:
                              0xf060-0xf07f
                          I/O memory addresses:
                              0xfe725000-0xfe7257ff
                        ata2
                          ad4
                            subdisk4
                        ata3
                        ata4
                        ata5
                        ata6
                        ata7
                  acpi_sysresource0
                  acpi_sysresource1
                  atpic0
                  atdma0
                  attimer0
                  atrtc0
                      Interrupt request lines:
                          8
                      I/O ports:
                          0x70-0x71
                  acpi_sysresource2
                  npxisa0
                  acpi_sysresource3
                  acpi_sysresource4
                  acpi_button0
                  pci_link0
                  pci_link1
                  pci_link2
                  pci_link3
                  pci_link4
                  pci_link5
                  pci_link6
                  pci_link7
                  acpi_sysresource5
                  acpi_sysresource6
                  acpi_timer0
                      ACPI I/O ports:
                          0x408-0x40b
                  acpi_hpet0
                      I/O memory addresses:
                          0xfed00000-0xfed003ff
              interrupt                          total       rate
              irq16: em1 ehci0               779815612      16681
              irq17: em2                         18172          0
              irq18: em3                          4435          0
              irq19: atapci0                     81729          1
              irq23: ehci1                       93211          1
              cpu0: timer                     93493755       2000
              irq256: em0                       604657         12
              cpu1: timer                     93493955       2000
              cpu2: timer                     93493973       2000
              cpu3: timer                     93494072       2000
              Total                         1154593571      24699
              
              
              1 Reply Last reply Reply Quote 0
              • W
                wallabybob
                last edited by

                I think Steve's suggestion was that you disable USB2 and USB3. From what you said you disabled USB1 and USB3. Please try Steve's suggestion. USB keyboard and mouse should work fine with USB1.

                1 Reply Last reply Reply Quote 0
                • stephenw10S
                  stephenw10 Netgate Administrator
                  last edited by

                  I would try disabling 'high speed' with that loader tunable. You clearly don't need high speed, ehci, for a keyboard.

                  Steve

                  1 Reply Last reply Reply Quote 0
                  • B
                    Bai Shen
                    last edited by

                    @wallabybob:

                    I think Steve's suggestion was that you disable USB2 and USB3. From what you said you disabled USB1 and USB3. Please try Steve's suggestion. USB keyboard and mouse should work fine with USB1.

                    Those were the only options in the BIOS for USB.

                    @stephenw10:

                    I would try disabling 'high speed' with that loader tunable. You clearly don't need high speed, ehci, for a keyboard.

                    Steve

                    I'll give that a shot.  Which ones do you suggest?  All three or just the last one?

                    1 Reply Last reply Reply Quote 0
                    • stephenw10S
                      stephenw10 Netgate Administrator
                      last edited by

                      I would probably try no_hs first then lost interupt.
                      The sysctl OIDs are listed in the 8.1 source code, here, but I don't have them on my system. Perhaps because I'm not using USB.  :-\

                      Steve

                      1 Reply Last reply Reply Quote 0
                      • B
                        Bai Shen
                        last edited by

                        @stephenw10:

                        I would probably try no_hs first then lost interupt.
                        The sysctl OIDs are listed in the 8.1 source code, here, but I don't have them on my system. Perhaps because I'm not using USB.  :-\

                        Steve

                        No luck with no_hs.  It ran fine for a little bit, but then quickly returned to it's previous state.  Is there a way to make sure that it's recognizing the loader.conf.local?

                        And I don't really have a choice on using USB.  I don't have any PS2 ports. :)

                        1 Reply Last reply Reply Quote 0
                        • stephenw10S
                          stephenw10 Netgate Administrator
                          last edited by

                          I would expect to be able to see the sysctl OIDs but all I see is:

                          
                          [2.0-RC3][root@pfsense.fire.box]/root(1): sysctl hw.usb
                          hw.usb.no_boot_wait: 0
                          hw.usb.debug: 0
                          hw.usb.usb_lang_mask: 255
                          hw.usb.usb_lang_id: 9
                          hw.usb.template: 0
                          hw.usb.power_timeout: 30
                          hw.usb.uath.regdomain: 0
                          hw.usb.uath.countrycode: 0
                          hw.usb.urtw.preamble_mode: 2
                          hw.usb.urtw.debug: 0
                          hw.usb.ucom.cons_baud: 9600
                          hw.usb.ucom.cons_unit: -1
                          
                          

                          No EHCI at all.

                          Steve

                          1 Reply Last reply Reply Quote 0
                          • B
                            Bai Shen
                            last edited by

                            @stephenw10:

                            I would expect to be able to see the sysctl OIDs but all I see is:

                            
                            [2.0-RC3][root@pfsense.fire.box]/root(1): sysctl hw.usb
                            hw.usb.no_boot_wait: 0
                            hw.usb.debug: 0
                            hw.usb.usb_lang_mask: 255
                            hw.usb.usb_lang_id: 9
                            hw.usb.template: 0
                            hw.usb.power_timeout: 30
                            hw.usb.uath.regdomain: 0
                            hw.usb.uath.countrycode: 0
                            hw.usb.urtw.preamble_mode: 2
                            hw.usb.urtw.debug: 0
                            hw.usb.ucom.cons_baud: 9600
                            hw.usb.ucom.cons_unit: -1
                            
                            

                            No EHCI at all.

                            Steve

                            I get hw.usb.ehci.no_hs 1 when I do it.  So it's picking it up.  I guess it's time to try the others.

                            1 Reply Last reply Reply Quote 0
                            • B
                              Bai Shen
                              last edited by

                              None of them worked.

                              Also, my keyboard no longer works.

                              Any other suggestions?

                              1 Reply Last reply Reply Quote 0
                              • W
                                wallabybob
                                last edited by

                                @stephenw10:

                                The sysctl OIDs are listed in the 8.1 source code, here, but I don't have them on my system. Perhaps because I'm not using USB.  :-\

                                Some device drivers don't register sysctls until they have successfully attached at least one device. I don't know the specifics of the USB sysctls.

                                @Bai:

                                None of them worked.

                                Also, my keyboard no longer works.

                                Any other suggestions?

                                Suggestions:

                                • Use  a motherboard with a chipset that has been available for at least six months at the time of release of FreeBSD 8.1. (I recall that I saw an older pfSense release lock up on startup on a motherboard with AMD chipset if USB was enabled. The next version of pfSense which had a more recent FreeBSD worked fine on the same motherboard when USB was enabled.)

                                • Keep searching - maybe a FreeBSD user has found a solution for FreeBSD 8.1

                                • Ignore it, you still have three working cores which is probably much more than you need.

                                • Disable motherboard USB entirely and use a PCI USB 2.0 card (which almost certainly will have a  USB chipset that has been around for a while and consequently has well debugged drivers). I don't know if the BIOS will support this.

                                • Disable motherboard USB and set BIOS to ignore "no keyboard". What do you need the keyboard for once the system is configured.

                                1 Reply Last reply Reply Quote 0
                                • stephenw10S
                                  stephenw10 Netgate Administrator
                                  last edited by

                                  @wallabybob:

                                  Some device drivers don't register sysctls until they have successfully attached at least one device. I don't know the specifics of the USB sysctls.

                                  That's what I thought, and yet:

                                  
                                  [2.0-RC3][root@pfsense.fire.box]/root(2): sysctl -a | grep ehci
                                  dev.usbus.2.%parent: ehci0
                                  dev.ehci.0.%desc: Intel 6300ESB USB 2.0 controller
                                  dev.ehci.0.%driver: ehci
                                  dev.ehci.0.%location: slot=29 function=7
                                  dev.ehci.0.%pnpinfo: vendor=0x8086 device=0x25ad subvendor=0x8086 subdevice=0x25ad class=0x0c0320
                                  dev.ehci.0.%parent: pci0
                                  
                                  

                                  Hmmm.  :-\

                                  @Bai Shen. If it has disabled your keyboard it is clearly doing something. Do you still have Legacy USB disabled in the bios? Perhaps you have ended up disabling ehci when that is all that was left still functioning.

                                  Steve

                                  1 Reply Last reply Reply Quote 0
                                  • B
                                    Bai Shen
                                    last edited by

                                    @wallabybob:

                                    • Keep searching - maybe a FreeBSD user has found a solution for FreeBSD 8.1

                                    Not as far as I can tell.  There's a bug filed for it, but no resolution so far.

                                    @wallabybob:

                                    • Ignore it, you still have three working cores which is probably much more than you need.

                                    That's what I'm doing.  The biggest annoyance is that it prevents the processor from idling and therefore uses more power than it should.

                                    @wallabybob:

                                    • Disable motherboard USB entirely and use a PCI USB 2.0 card (which almost certainly will have a  USB chipset that has been around for a while and consequently has well debugged drivers). I don't know if the BIOS will support this.

                                    Maybe.  But right now I'm using all of the PCI slots for NICs.  I'll be picking up PCIe NICs later, but for now I'm using the ones I have.

                                    @wallabybob:

                                    • Disable motherboard USB and set BIOS to ignore "no keyboard". What do you need the keyboard for once the system is configured.

                                    I've thought about doing that.  But I've had instances before where I had to use the console on the actual box to reset/change configurations.  So I'm hesitant to do that atm.  Plus I'm not sure how it'll work to turn it back on as there's no other way to connect a keyboard.

                                    1 Reply Last reply Reply Quote 0
                                    • B
                                      Bai Shen
                                      last edited by

                                      @stephenw10:

                                      @Bai Shen. If it has disabled your keyboard it is clearly doing something. Do you still have Legacy USB disabled in the bios? Perhaps you have ended up disabling ehci when that is all that was left still functioning.

                                      Steve

                                      No, I made sure to turn legacy and usb3 back on before messing with the loader.conf.local.

                                      1 Reply Last reply Reply Quote 0
                                      • stephenw10S
                                        stephenw10 Netgate Administrator
                                        last edited by

                                        Serial console instead of keyboard?
                                        I would definitely leave USB3 disabled.
                                        Perhaps you can force one of the two devices onto a different IRQ.

                                        Steve

                                        Edit: Assuming you are still using the DH67CL, are you running the lastest bios?

                                        Edit: It seems (though I can't find detailed instruction) that you should be able to set IRQ 16 as unavailable to PCI auto configuration. That should force your LAN card onto a different IRQ.

                                        1 Reply Last reply Reply Quote 0
                                        • B
                                          Bai Shen
                                          last edited by

                                          @stephenw10:

                                          Serial console instead of keyboard?

                                          I don't think it has a serial port, but I could be wrong.  I don't have any infrastructure to support that either.

                                          @stephenw10:

                                          I would definitely leave USB3 disabled.

                                          How come?

                                          @stephenw10:

                                          Perhaps you can force one of the two devices onto a different IRQ.

                                          Steve

                                          Edit: Assuming you are still using the DH67CL, are you running the lastest bios?

                                          Edit: It seems (though I can't find detailed instruction) that you should be able to set IRQ 16 as unavailable to PCI auto configuration. That should force your LAN card onto a different IRQ.

                                          Yep, I'm running the latest bios.

                                          I'll have to look through the bios at the PCI config.  I don't recall seeing anything like that before, but I wasn't looking for it.  How does setting the NIC to a different IRQ fix the problem?  Wouldn't I still get the interrupts from the ehci?

                                          1 Reply Last reply Reply Quote 0
                                          • stephenw10S
                                            stephenw10 Netgate Administrator
                                            last edited by

                                            @Bai:

                                            @stephenw10:

                                            I would definitely leave USB3 disabled.

                                            How come?

                                            Because it's highly probable that FreeBSD didn't support it when 8.1 was released. Does it even support it now?

                                            @Bai:

                                            I'll have to look through the bios at the PCI config.  I don't recall seeing anything like that before, but I wasn't looking for it.  How does setting the NIC to a different IRQ fix the problem?  Wouldn't I still get the interrupts from the ehci?

                                            It may be an IRQ conflict causing the interrupt storm.

                                            @Technical:

                                            Any interrupts set to Available in Setup are considered to be available for
                                            use by the add-in card.

                                            Implies that you can set to unavailable.

                                            Steve

                                            1 Reply Last reply Reply Quote 0
                                            • First post
                                              Last post
                                            Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.