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

    Scheduled Pinned Locked Moved Hardware
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    • stephenw10S
      stephenw10 Netgate Administrator
      last edited by

      This can be easily confused with some other device that's using the same irq.
      Do you have anything else using irq 16?

      Steve

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

        @stephenw10:

        This can be easily confused with some other device that's using the same irq.
        Do you have anything else using irq 16?

        Steve

        I'm not sure.  How do I check in pfSense?  The machine is an i3-2100 running on a DH67CL.  I'm using three Intel PRO 1000GT PCI NICs.  The only other thing is a hard drive plugged in to a SATA 3 port.  I'm using a USB KVM, so I have those two USB devices plugged in.

        This seems to be the same issue.
        http://www.freebsd.org/cgi/query-pr.cgi?pr=156596

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        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          Yes that seems likely the same issue. Or indeed this one:
          http://forums.freebsd.org/showthread.php?t=24952

          I was going to suggest you disable all usb ports in the bios but it seems you are using them.  ::)
          You may be able to disable ehci though. Have a look through your bios and see what you can disable.

          Steve

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          • B
            Bai Shen
            last edited by

            @stephenw10:

            Yes that seems likely the same issue. Or indeed this one:
            http://forums.freebsd.org/showthread.php?t=24952

            I was going to suggest you disable and usb ports in the bios but it seems you are using them.  ::)
            You may be able to disable ehci though. Have a look through your bios and see what you can disable.

            Steve

            And if I disabled the usb ports, I'd have no way of reenabling them. :)

            What's the difference between ehci and usb?

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            • stephenw10S
              stephenw10 Netgate Administrator
              last edited by

              EHCI provides access for 'high speed' devices as opposed to low and full speed.

              The ehci driver has some tunables you could add to /boot/loader.conf.local to try.

              LOADER TUNABLES

              Tunables can be set at the loader(8) prompt before booting the kernel or
                  stored in loader.conf(5).

              hw.usb.ehci.lostintrbug
                          This tunable enables the lost interrupt quirk.  The default value
                          is 0 (off).

              hw.usb.ehci.iaadbug
                          This tunable enables the EHCI doorbell quirk.  The default value
                          is 0 (off).

              hw.usb.ehci.no_hs
                          This tunable disables USB devices to attach like HIGH-speed ones
                          and will force all attached devices to attach to the FULL- or
                          LOW-speed companion controller.  The default value is 0 (off).

              Steve

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              • B
                Bai Shen
                last edited by

                @stephenw10:

                EHCI provides access for 'high speed' devices as opposed to low and full speed.

                The ehci driver has some tunables you could add to /boot/loader.conf.local to try.

                LOADER TUNABLES

                Tunables can be set at the loader(8) prompt before booting the kernel or
                     stored in loader.conf(5).

                hw.usb.ehci.lostintrbug
                             This tunable enables the lost interrupt quirk.  The default value
                             is 0 (off).

                hw.usb.ehci.iaadbug
                             This tunable enables the EHCI doorbell quirk.  The default value
                             is 0 (off).

                hw.usb.ehci.no_hs
                             This tunable disables USB devices to attach like HIGH-speed ones
                             and will force all attached devices to attach to the FULL- or
                             LOW-speed companion controller.  The default value is 0 (off).

                Steve

                Ah, okay.  I'll take a look when I get home.

                I wonder if it made a difference that I installed pfSense using a usb cd-rom.

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                • W
                  wallabybob
                  last edited by

                  @Bai:

                  I'm running 2.0 RC3 on an i3.  Shortly after I boot it, one of the cpu cores gets a heavy load on it.  Looking at the System Activity, it shows {irq16: em1 ehci0}

                  em1 is my WAN card.  I'm not running any packages, and other than the high cpu activity, everything seems to be working.

                  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?

                  @Bai:

                  I wonder if it made a difference that I installed pfSense using a usb cd-rom.

                  I think it is unlikely.

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

                  1 Reply Last reply Reply Quote 0
                  • 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?

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                        • 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.

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                                          • B
                                            Bai Shen
                                            last edited by

                                            None of them worked.

                                            Also, my keyboard no longer works.

                                            Any other suggestions?

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