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  1. FreeNAS / TrueNAS
  2. NAS-108267

IXGBE Issue under TrueNAS Core - ix Interfaces 'hang' after random time.

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      I've been using FreeNAS for quite a while now - on a SuperMicro X10DRU-i+ system.

      This has:

      4 * Intel(R) PRO/10GbE PCI-Express (twisted pair) onboard - not currently in use, show as ix0, ix1, ix2 and ix3

      +

      1 * Dual Port Intel(R) PRO/10GbE PCI-Express (sfp+) in a PCI-e slot - in use, show as ix4, ix5

       

      After upgrading to TrueNAS Core 12.0 - these ix based NIC's randomly "hang", after a period of time.


      This wasn't seen under FreeNAS 11.3-U3.2 (or earlier versions).

       

      Unfortunately when this happens:

      - There is no console errors / output.

      - There are no errors logged anywhere I can see

      - The interface stops receiving / transmitting traffic (verified with tcpdump - even 'arp: Who has x tell y' requests for the MAC do not show up in tcpdump when this happens).

      Also - the output from 'netstat -b -i ixX' appears unremarkable (i.e. no sudden surge in input/output errors).

      I'd suspect something is wedging / getting 'stuck' somewhere.

       

      In the TrueNAS community forums - there's at least two other people with similar issues:

       https://www.truenas.com/community/threads/freenas-truenas-core-upgrade-broke-ix-nic.88477/#post-613005 

       

      I've tried doing an 'ifconfig ix[0-5] down' and 'up' - to no avail. The only resolution is to reboot the machine.

      One interface is part of a LAGG - the other is standalone, both exhibit the problem randomly (i.e. network load doesn't affect it).

      I'm in the process of setting up another identical box for testing - as in the meantime I've had to revert back to FreeNAS 11.3 (which has fixed the issue) - I'll try and update this report with dmesg etc. output when this is running.

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                Assignee:
                mav Alexander Motin
                Reporter:
                tackyone Tackyone
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                  Updated: