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

    Interrupt broadcast Storm *Fixed* [BIOS configuration setting]

    Scheduled Pinned Locked Moved 2.0-RC Snapshot Feedback and Problems - RETIRED
    6 Posts 3 Posters 4.2k 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.
    • J
      jits
      last edited by

      Hi.

      I am now seeing this error in the system logs. Does anyone know what this is?

      kernel: interrupt storm detected on "irq7:"; throttling interrupt source

      update

      vmstat -i indicates irq7 is a parallel printer port.

      What would be the best way to resolve this issue? Could I go into the BIOS and simply reserve the irq or turn off that feature. What do you think?

      thanks, Jits.

      ![interrupt storm.jpg](/public/imported_attachments/1/interrupt storm.jpg)
      ![interrupt storm.jpg_thumb](/public/imported_attachments/1/interrupt storm.jpg_thumb)
      vmstat.jpg
      vmstat.jpg_thumb

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

        interrupt storm means high interupt rate. It would probably help to disable the parallel port in the BIOS, then there should be no devices using IRQ7 so FreeBSD should not enable interrupts from IRQ7.

        1 Reply Last reply Reply Quote 0
        • J
          jits
          last edited by

          Hi. Thanks for the reply.

          Took some looking, but eventually found the Parallel Printer port items in the BIOS and disabled them. PNP/Interrupts irq7 was already set at "reserved" for "Legacy Devices"

          Been long enough now, No more "Interrupt Broadcast Storm" errors.

          Jits.

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

            Thanks for reporting back. I'm glad its fixed.

            1 Reply Last reply Reply Quote 0
            • jimpJ
              jimp Rebel Alliance Developer Netgate
              last edited by

              FYI- sometimes issues like this can also be resolved by toggling the "PnP OS" setting in the BIOS. For FreeBSD, it should be set to 'no' in most cases.

              Disabling devices you don't use is always preferable, though.

              Remember: Upvote with the 👍 button for any user/post you find to be helpful, informative, or deserving of recognition!

              Need help fast? Netgate Global Support!

              Do not Chat/PM for help!

              1 Reply Last reply Reply Quote 0
              • J
                jits
                last edited by

                ok, Thanks. I prefer to turn them off. I'm not at all sure who would need a printer attached to a firewall, unless you've got some type of freaky worldwide RTTY notification system going on.

                I guess the next step will be open source BIOS programs tailored for mission specific open source software. Just a thought.

                Jits.

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