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    DHCP server crashing every 5-6 days after upgrade to 21.02.2-RELEASE (amd64)

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    DHCP and DNS
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    • Y
      yhasan
      last edited by

      Hey folks,

      Can someone help me troubleshoot my DHCP server crashing and staying down every 5-6 days? This started happening after I had upgraded to 21.02 then persisted after I upgraded to the latest release available at the moment: 21.02.2. I was previously on 2.4.5 and I regret upgrading as that version was super stable. Now it looks like I need to schedule a cron job to restart every 4 days to make sure my router is functioning, i really don't want to do this, so looking for guidance.

      Here is the errors I see in the dhcp.log file when the dhcp server goes down and stays down:

      Apr 29 06:45:12 pfSense dhcpd[22912]: Unable to register fd with library out of range
      Apr 29 06:45:12 pfSense dhcpd[22912]: Can't register I/O handle for ix0.10: out of range

      I'm running Netgate SG-5100 in case you were wondering. If there's other logs I can investigate, please let me know if that helps.

      Help me!

      Thanks,

      ps. Here's some more lines around the error message if it helps:

      Apr 29 06:45:12 pfSense dhcpd[22912]: Internet Systems Consortium DHCP Server 4.4.2
      Apr 29 06:45:12 pfSense dhcpd[22912]: Copyright 2004-2020 Internet Systems Consortium.
      Apr 29 06:45:12 pfSense dhcpd[22912]: All rights reserved.
      Apr 29 06:45:12 pfSense dhcpd[22912]: For info, please visit https://www.isc.org/software/dhcp/
      Apr 29 06:45:12 pfSense dhcpd[22912]: Config file: /etc/dhcpd.conf
      Apr 29 06:45:12 pfSense dhcpd[22912]: Database file: /var/db/dhcpd.leases
      Apr 29 06:45:12 pfSense dhcpd[22912]: PID file: /var/run/dhcpd.pid
      Apr 29 06:45:12 pfSense dhcpd[22912]: Internet Systems Consortium DHCP Server 4.4.2
      Apr 29 06:45:12 pfSense dhcpd[22912]: Copyright 2004-2020 Internet Systems Consortium.
      Apr 29 06:45:12 pfSense dhcpd[22912]: All rights reserved.
      Apr 29 06:45:12 pfSense dhcpd[22912]: For info, please visit https://www.isc.org/software/dhcp/
      Apr 29 06:45:12 pfSense dhcpd[22912]: Wrote 0 class decls to leases file.
      Apr 29 06:45:12 pfSense dhcpd[22912]: Wrote 0 deleted host decls to leases file.
      Apr 29 06:45:12 pfSense dhcpd[22912]: Wrote 0 new dynamic host decls to leases file.
      Apr 29 06:45:12 pfSense dhcpd[22912]: Wrote 47 leases to leases file.
      Apr 29 06:45:12 pfSense dhcpd[22912]: Listening on BPF/ix0.50/00:90:0b:8c:d7:60/192.168.50.0/24
      Apr 29 06:45:12 pfSense dhcpd[22912]: Sending on BPF/ix0.50/00:90:0b:8c:d7:60/192.168.50.0/24
      Apr 29 06:45:12 pfSense dhcpd[22912]: Listening on BPF/ix0.60/00:90:0b:8c:d7:60/192.168.60.0/24
      Apr 29 06:45:12 pfSense dhcpd[22912]: Sending on BPF/ix0.60/00:90:0b:8c:d7:60/192.168.60.0/24
      Apr 29 06:45:12 pfSense dhcpd[22912]: Listening on BPF/ix0.40/00:90:0b:8c:d7:60/192.168.40.0/24
      Apr 29 06:45:12 pfSense dhcpd[22912]: Sending on BPF/ix0.40/00:90:0b:8c:d7:60/192.168.40.0/24
      Apr 29 06:45:12 pfSense dhcpd[22912]: Listening on BPF/ix0.30/00:90:0b:8c:d7:60/192.168.30.0/24
      Apr 29 06:45:12 pfSense dhcpd[22912]: Sending on BPF/ix0.30/00:90:0b:8c:d7:60/192.168.30.0/24
      Apr 29 06:45:12 pfSense dhcpd[22912]: Listening on BPF/ix0.20/00:90:0b:8c:d7:60/192.168.20.0/24
      Apr 29 06:45:12 pfSense dhcpd[22912]: Sending on BPF/ix0.20/00:90:0b:8c:d7:60/192.168.20.0/24
      Apr 29 06:45:12 pfSense dhcpd[22912]: Listening on BPF/ix0.10/00:90:0b:8c:d7:60/192.168.10.0/24
      Apr 29 06:45:12 pfSense dhcpd[22912]: Sending on BPF/ix0.10/00:90:0b:8c:d7:60/192.168.10.0/24
      Apr 29 06:45:12 pfSense dhcpd[22912]: Listening on BPF/ix0/00:90:0b:8c:d7:60/192.168.1.0/24
      Apr 29 06:45:12 pfSense dhcpd[22912]: Sending on BPF/ix0/00:90:0b:8c:d7:60/192.168.1.0/24
      Apr 29 06:45:12 pfSense dhcpd[22912]: Unable to register fd with library out of range
      Apr 29 06:45:12 pfSense dhcpd[22912]: Can't register I/O handle for ix0.10: out of range
      Apr 29 06:45:12 pfSense dhcpd[22912]:
      Apr 29 06:45:12 pfSense dhcpd[22912]: If you think you have received this message due to a bug rather
      Apr 29 06:45:12 pfSense dhcpd[22912]: than a configuration issue please read the section on submitting
      Apr 29 06:45:12 pfSense dhcpd[22912]: bugs on either our web page at www.isc.org or in the README file
      Apr 29 06:45:12 pfSense dhcpd[22912]: before submitting a bug. These pages explain the proper
      Apr 29 06:45:12 pfSense dhcpd[22912]: process and the information we find helpful for debugging.
      Apr 29 06:45:12 pfSense dhcpd[22912]:
      Apr 29 06:45:12 pfSense dhcpd[22912]: exiting.

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