Arch Linux

everwisher

Member

Registered: 2019-09-11

Posts: 33

systemd-networkd failed to start network service. Can't figure out why

My network-associated components:
    i219v: 1 port; intel 82580 4 ports

Previously I used dhcpcd to set my build with a static address. As I planned to bind the physical interface (i219v, named as enp0s31f6) to a virtual network bridge to which the VMs will attach, I used systemd-networkd to create the virtual network bridge, bind it to the physical address and assign static address to the bridge as per ArchWiki instructions.

However, the settings failed my network service to start for unknown reason.

Here're my netdev and network files in /etc/systemd/network
everBr.netdev

  [NetDev]
  Name=everBr
  Kind=bridge

bindBr.network

  [Match]
  Name=enp0s31f6
  
  [Network]
  Bridge=everBr

everBr.network

  [Match]
  Name=everBr
  
  [Network]
  DNS=8.8.8.8 8.8.4.4. 80.80.80.80
  Address=192.168.1.2/24
  Gateway=192.168.1.1

Here're the log files:
networkctl

IDX LINK      TYPE     OPERATIONAL SETUP      
  1 lo        loopback carrier     failed     
  2 enp3s0f0  ether    off         configuring
  3 enp3s0f1  ether    n/a         unmanaged  
  4 enp3s0f2  ether    n/a         unmanaged  
  5 everBr    bridge   off         failed     
  6 enp3s0f3  ether    n/a         unmanaged  
  7 enp0s31f6 ether    n/a         unmanaged  

7 links listed.

networkctl status

● State: off

systemctl status systemd-networkd systemd-resolved

● systemd-networkd.service - Network Service
     Loaded: loaded (/usr/lib/systemd/system/systemd-networkd.service; enabled; vendor preset: enabled)
     Active: failed (Result: core-dump) since Sat 2019-12-07 08:58:15 HKT; 7min ago
TriggeredBy: ● systemd-networkd.socket
       Docs: man:systemd-networkd.service(8)
    Process: 726 ExecStart=/usr/lib/systemd/systemd-networkd (code=dumped, signal=SEGV)
   Main PID: 726 (code=dumped, signal=SEGV)

Dec 07 08:58:15 everServer systemd[1]: systemd-networkd.service: Scheduled restart job, restart counter is at 5.
Dec 07 08:58:15 everServer systemd[1]: Stopped Network Service.
Dec 07 08:58:15 everServer systemd[1]: systemd-networkd.service: Start request repeated too quickly.
Dec 07 08:58:15 everServer systemd[1]: systemd-networkd.service: Failed with result 'core-dump'.
Dec 07 08:58:15 everServer systemd[1]: Failed to start Network Service.

● systemd-resolved.service - Network Name Resolution
     Loaded: loaded (/usr/lib/systemd/system/systemd-resolved.service; disabled; vendor preset: enabled)
     Active: inactive (dead)
       Docs: man:systemd-resolved.service(8)
             https://www.freedesktop.org/wiki/Software/systemd/resolved
             https://www.freedesktop.org/wiki/Software/systemd/writing-network-configuration-managers
             https://www.freedesktop.org/wiki/Software/systemd/writing-resolver-clients

coredump info

           PID: 731 (systemd-network)
           UID: 981 (systemd-network)
           GID: 981 (systemd-network)
        Signal: 11 (SEGV)
     Timestamp: Sat 2019-12-07 21:04:52 HKT (3min 29s ago)
  Command Line: /usr/lib/systemd/systemd-networkd
    Executable: /usr/lib/systemd/systemd-networkd
 Control Group: /system.slice/systemd-networkd.service
          Unit: systemd-networkd.service
         Slice: system.slice
       Boot ID: 5cf6e99e266e478d9e319c5b8c3cd257
    Machine ID: 213f20610bf943f388e7fb3e77e7a56c
      Hostname: everServer
       Storage: /var/lib/systemd/coredump/core.systemd-network.981.5cf6e99e266e478d9e319c5b8c3cd257.731.1575723892000000000000.lz4
       Message: Process 731 (systemd-network) of user 981 dumped core.
                
                Stack trace of thread 731:
                #0  0x00007f21279e50fb n/a (libsystemd-shared-244.so + 0x1020fb)
                #1  0x00007f21279e62eb internal_hashmap_get (libsystemd-shared-244.so + 0x1032eb)
                #2  0x00005624d893e43a n/a (systemd-networkd + 0x4343a)
                #3  0x00005624d892d347 n/a (systemd-networkd + 0x32347)
                #4  0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #5  0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #6  0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #7  0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #8  0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #9  0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #10 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #11 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #12 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #13 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #14 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #15 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #16 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #17 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #18 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #19 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #20 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #21 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #22 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #23 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #24 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #25 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #26 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #27 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #28 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #29 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #30 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #31 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #32 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #33 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #34 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #35 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #36 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #37 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #38 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #39 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #40 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #41 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #42 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #43 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #44 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #45 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #46 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #47 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #48 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #49 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #50 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #51 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #52 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #53 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #54 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #55 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #56 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #57 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #58 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #59 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #60 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #61 0x00005624d892d359 n/a (systemd-networkd + 0x32359)
                #62 0x00005624d8945894 n/a (systemd-networkd + 0x4a894)
                #63 0x00005624d892d359 n/a (systemd-networkd + 0x32359)

Last edited by everwisher (2019-12-07 05:27:32)

loqs

Member

Registered: 2014-03-06

Posts: 18,294

Re: systemd-networkd failed to start network service. Can't figure out why

Dec 07 08:58:15 everServer systemd[1]: systemd-networkd.service: Failed with result 'core-dump'.

Please post the  coredumpctl info for the core dump.

everwisher

Member

Registered: 2019-09-11

Posts: 33

Re: systemd-networkd failed to start network service. Can't figure out why

Sorry for the delay due to time lag. I've posted coredump to the original post.

loqs

Member

Registered: 2014-03-06

Posts: 18,294

Re: systemd-networkd failed to start network service. Can't figure out why

Has the system been updated to systemd 244-1?

everwisher

Member

Registered: 2019-09-11

Posts: 33

Re: systemd-networkd failed to start network service. Can't figure out why

Has the system been updated to systemd 244-1?

Yes, it’s running with the latest version of Arch distro. I ran pacman -Syu before switching from dhcpcd to networkd.

Last edited by everwisher (2019-12-08 00:20:05)

loqs

Member

Registered: 2014-03-06

Posts: 18,294

Re: systemd-networkd failed to start network service. Can't figure out why

Please rebuild systemd with debug symbols.
This does appear to be an upstream bug.

everwisher

Member

Registered: 2019-09-11

Posts: 33

Re: systemd-networkd failed to start network service. Can't figure out why

Please rebuild systemd with debug symbols.
This does appear to be an upstream bug.

I was distracted from computer for a few days and then I reinstalled the whole-new Arch distro. Everything went well. I agree with your statement that my previous issue may relate to some upstream bug.