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    Crash - kern.ipc.nmbufs limit reached

    Scheduled Pinned Locked Moved General pfSense Questions
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    • 1 Offline
      1vg
      last edited by

      All network interfaces went down with message
      [zone: mbuf] kern.ipc.nmbufs limit reached
      though the system itself did not crash and I rebooted it from the console.

      It is 2.2.6-RELEASE on Dell server with 40-Gbit Chelsio Chelsio T580-LP-CR network card.

      cat /boot/loader.conf.local

      kern.ipc.nmbclusters="1048576"
      net.inet.tcp.tso=0
      kern.ipc.nmbjumbop="524288"

      Any idea what could be done to prevent it from happening again?

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      • C Offline
        coxhaus
        last edited by

        I found this.

        https://forum.pfsense.org/index.php?topic=89087.0

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        • H Offline
          heper
          last edited by

          Increase mbufs.
          See nic tuning on the wiki

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