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    zfskern occasionally causing high CPU load - But I'm not using ZFS

    General pfSense Questions
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    • A
      Anaerin
      last edited by

      When I installed pfSense, I opted not to use ZFS and instead use the original UFS file system. But for some reason zfskern is running and occasionally (especially at startup) eating a CPU core or two apparently doing nothing.
      Is this a known issue? Is there some way I can disable zfs/zfskern?

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      • stephenw10S
        stephenw10 Netgate Administrator
        last edited by

        How are you seeing that? In the top output? What exactly is shown?

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        • A
          Anaerin @stephenw10
          last edited by

          @stephenw10 Yes, I have top open, and zfskern is showing up as the top entry, taking 100% CPU. It goes away after a few seconds, but it shouldn't be running in the first place.

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          • stephenw10S
            stephenw10 Netgate Administrator
            last edited by

            You have a screenshot or the output from top showing that?

            Does it appear repeatedly? Only at boot?

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            • A
              Anaerin @stephenw10
              last edited by

              @stephenw10 Unfortunately, no. It only seems to show up at startup fortunately. If I catch it again I'll screenshot it.

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