[Bug 1912331] Re: Many interfaces lead to "kernel receive buffer overrun"

Tue Apr 6 19:23:34 UTC 2021

Hi,

I booted the server using the ubuntu groovy live cd and applied the same
configuration via netplan. All interfaces became up.

I suspected that this patch
https://github.com/systemd/systemd/pull/16982 solved the issue. Can you
port this patch to focal fossa?

Thanks

networkctl -a

IDX LINK   TYPE     OPERATIONAL SETUP      
  1 lo     loopback carrier     unmanaged  
  2 eth0   ether    routable    configured 
  3 eth1   ether    no-carrier  configuring
  4 eth2   ether    no-carrier  configuring
  5 eth3   ether    no-carrier  configuring
  6 eth4   ether    no-carrier  configuring
  7 eth5   ether    no-carrier  configuring
  8 br0    bridge   no-carrier  configured 
  9 br1    bridge   no-carrier  configured 
 10 br2    bridge   no-carrier  configured 
 11 br3    bridge   no-carrier  configured 
 12 br4    bridge   no-carrier  configured 
 13 br4.8  vlan     no-carrier  configured 
 14 br4.4  vlan     no-carrier  configured 
 15 br4.7  vlan     no-carrier  configured 
 16 br4.2  vlan     no-carrier  configured 
 17 br4.9  vlan     no-carrier  configured 
 18 br4.14 vlan     no-carrier  configured 
 19 br4.3  vlan     no-carrier  configured 
 20 br4.17 vlan     no-carrier  configured 
 21 br4.0  vlan     no-carrier  configured 
 22 br4.12 vlan     no-carrier  configured 
 23 br4.10 vlan     no-carrier  configured 
 24 br4.5  vlan     no-carrier  configured 
 25 br4.6  vlan     no-carrier  configured 
 26 br4.16 vlan     no-carrier  configured 
 27 br4.11 vlan     no-carrier  configured 
 28 br4.13 vlan     no-carrier  configured 
 29 br4.15 vlan     no-carrier  configured 
 30 br4.1  vlan     no-carrier  configured 
 31 br3.5  vlan     no-carrier  configured 
 32 br3.10 vlan     no-carrier  configured 
 33 br3.4  vlan     no-carrier  configured 
 34 br3.1  vlan     no-carrier  configured 
 35 br3.0  vlan     no-carrier  configured 
 36 br3.6  vlan     no-carrier  configured 
 37 br3.16 vlan     no-carrier  configured 
 38 br3.11 vlan     no-carrier  configured 
 39 br3.12 vlan     no-carrier  configured 
 40 br3.14 vlan     no-carrier  configured 
 41 br3.8  vlan     no-carrier  configured 
 42 br3.15 vlan     no-carrier  configured 
 43 br3.2  vlan     no-carrier  configured 
 44 br3.17 vlan     no-carrier  configured 
 45 br3.3  vlan     no-carrier  configured 
 46 br3.7  vlan     no-carrier  configured 
 47 br3.9  vlan     no-carrier  configured 
 48 br3.13 vlan     no-carrier  configured 
 49 br2.6  vlan     no-carrier  configured 
 50 br2.3  vlan     no-carrier  configured 
 51 br2.16 vlan     no-carrier  configured 
 52 br2.17 vlan     no-carrier  configured 
 53 br2.8  vlan     no-carrier  configured 
 54 br2.15 vlan     no-carrier  configured 
 55 br2.1  vlan     no-carrier  configured 
 56 br2.2  vlan     no-carrier  configured 
 57 br2.0  vlan     no-carrier  configured 
 58 br2.10 vlan     no-carrier  configured 
 59 br2.13 vlan     no-carrier  configured 
 60 br2.11 vlan     no-carrier  configured 
 61 br2.5  vlan     no-carrier  configured 
 62 br2.9  vlan     no-carrier  configured 
 63 br2.12 vlan     no-carrier  configured 
 64 br2.7  vlan     no-carrier  configured 
 65 br2.14 vlan     no-carrier  configured 
 66 br2.4  vlan     no-carrier  configured 
 67 br1.13 vlan     no-carrier  configured 
 68 br1.16 vlan     no-carrier  configured 
 69 br1.3  vlan     no-carrier  configured 
 70 br1.0  vlan     no-carrier  configured 
 71 br1.17 vlan     no-carrier  configured 
 72 br1.14 vlan     no-carrier  configured 
 73 br1.2  vlan     no-carrier  configured 
 74 br1.7  vlan     no-carrier  configured 
 75 br1.1  vlan     no-carrier  configured 
 76 br1.5  vlan     no-carrier  configured 
 77 br1.9  vlan     no-carrier  configured 
 78 br1.4  vlan     no-carrier  configured 
 79 br1.11 vlan     no-carrier  configured 
 80 br1.12 vlan     no-carrier  configured 
 81 br1.15 vlan     no-carrier  configured 
 82 br1.6  vlan     no-carrier  configured 
 83 br1.8  vlan     no-carrier  configured 
 84 br1.10 vlan     no-carrier  configured 
 85 br0.5  vlan     no-carrier  configured 
 86 br0.13 vlan     no-carrier  configured 
 87 br0.12 vlan     no-carrier  configured 
 88 br0.11 vlan     no-carrier  configured 
 89 br0.0  vlan     no-carrier  configured 
 90 br0.1  vlan     no-carrier  configured 
 91 br0.15 vlan     no-carrier  configured 
 92 br0.3  vlan     no-carrier  configured 
 93 br0.14 vlan     no-carrier  configured 
 94 br0.4  vlan     no-carrier  configured 
 95 br0.7  vlan     no-carrier  configured 
 96 br0.6  vlan     no-carrier  configured 
 97 br0.2  vlan     no-carrier  configured 
 98 br0.9  vlan     no-carrier  configured 
 99 br0.10 vlan     no-carrier  configured 
100 br0.16 vlan     no-carrier  configured 
101 br0.17 vlan     no-carrier  configured 
102 br0.8  vlan     no-carrier  configured 

102 links listed.

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https://bugs.launchpad.net/bugs/1912331

Title:
  Many interfaces lead to "kernel receive buffer overrun"

Status in systemd:
  Fix Released
Status in systemd package in Ubuntu:
  Invalid
Status in systemd source package in Focal:
  Invalid
Status in systemd source package in Groovy:
  Invalid

Bug description:
  This is about a systemd-networkd bug, described here:

  https://github.com/systemd/systemd/issues/14417

  There's a patch available:

  https://github.com/systemd/systemd/pull/16982

  Can this be backported to Focal?

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