[Mageia-dev] systemd network.service issues

Colin Guthrie mageia at colin.guthr.ie
Fri Mar 16 13:45:35 CET 2012


'Twas brillig, and Anssi Hannula at 16/03/12 03:45 did gyre and gimble:
> Hi all!
> 
> So, I've just upgraded my home server to mga2/cauldron.
> 
> Something seems fishy in the network.service handling, systemd thinks it
> has failed:
> 
> # systemctl status network.service
> network.service - LSB: Bring up/down networking
>           Loaded: loaded (/etc/rc.d/init.d/network)
>           Active: failed (Result: exit-code) since Fri, 16 Mar 2012
> 05:25:09 +0200; 11min ago
>           CGroup: name=systemd:/system/network.service
>                   ├ 4679 /sbin/ifplugd -I -b -i eth0
>                   ├ 4723 /sbin/ifplugd -I -b -i eth1
>                   └ 5372 /sbin/dhclient -q -lf
> /var/lib/dhcp/dhclient-eth0.leases -pf /var/run/dhclient-eth0.pid -cf
> /etc/dhclient-eth0.conf...
> 
> Mar 16 05:25:09 delta.onse.fi ifplugd(eth1)[4723]: Using detection mode:
> SIOCETHTOOL
> Mar 16 05:25:09 delta.onse.fi ifplugd(eth1)[4723]: Initialization
> complete, link beat not detected.
> Mar 16 05:25:09 delta.onse.fi network[4397]: [161B blob data]
> Mar 16 05:25:09 delta.onse.fi network[4397]: [14B blob data]
> Mar 16 05:25:13 delta.onse.fi ifplugd(eth0)[4679]: Link beat detected.
> Mar 16 05:25:14 delta.onse.fi ifplugd(eth0)[4679]: Executing
> '/etc/ifplugd/ifplugd.action eth0 up'.
> Mar 16 05:25:15 delta.onse.fi dhclient[5312]: DHCPREQUEST on eth0 to
> 255.255.255.255 port 67
> Mar 16 05:25:15 delta.onse.fi dhclient[5312]: DHCPACK from 109.204.128.1
> Mar 16 05:25:15 delta.onse.fi ifplugd(eth0)[4679]: client: Determining
> IP information for eth0... done.
> Mar 16 05:25:15 delta.onse.fi ifplugd(eth0)[4679]: Program executed
> successfully.
> 
> 
> Trying to restart it I seem to hit other issues:
> 
> # systemctl restart network.service
> Job failed. See system journal and 'systemctl status' for details.
> # systemctl status network.service
> network.service - LSB: Bring up/down networking
>           Loaded: loaded (/etc/rc.d/init.d/network)
>           Active: failed (Result: exit-code) since Fri, 16 Mar 2012
> 05:36:39 +0200; 3s ago
>          Process: 8027 ExecStart=/etc/rc.d/init.d/network start
> (code=exited, status=1/FAILURE)
>           CGroup: name=systemd:/system/network.service
>                   ├ 8195 /sbin/ifplugd -I -b -i eth0
>                   └ 8353 /sbin/dhclient -q -lf
> /var/lib/dhcp/dhclient-eth0.leases -pf /var/run/dhclient-eth0.pid -cf
> /etc/dhclient-eth0.conf...
> 
> Mar 16 05:36:39 delta.onse.fi network[8027]: RTNETLINK answers: File exists
> Mar 16 05:36:39 delta.onse.fi network[8027]: RTNETLINK answers: File exists
> Mar 16 05:36:39 delta.onse.fi network[8027]: RTNETLINK answers: File exists
> Mar 16 05:36:39 delta.onse.fi network[8027]: RTNETLINK answers: File exists
> Mar 16 05:36:39 delta.onse.fi dhclient[8261]: DHCPREQUEST on eth0 to
> 255.255.255.255 port 67
> Mar 16 05:36:40 delta.onse.fi dhclient[8261]: DHCPACK from 109.204.128.1
> Mar 16 05:36:40 delta.onse.fi ifplugd(eth0)[8195]: client: Determining
> IP information for eth0...NETLINK: Error: File exists
> Mar 16 05:36:40 delta.onse.fi ifplugd(eth0)[8195]: client:  done.
> Mar 16 05:36:40 delta.onse.fi ifplugd(eth0)[8195]: client: NETLINK:
> Error: File exists
> Mar 16 05:36:40 delta.onse.fi ifplugd(eth0)[8195]: Program executed
> successfully.
> 
> Any ideas? If not, I'll investigate this myself later.

network.service fails here too, but I've not been able to work out
exactly why. It doens't bother me too much tho' as all my devices are
using network manager!

THat said, it seems that network.service has still started an ifplugd
for my wlan, despite the ifcfg file clearly saying that NM should take
care of that interface... needs some investigating for sure.


> On a related note, I also got dropped to emergency console on first
> boot, not sure why was that (it didn't tell me the reason... maybe the
> reason was in another virtual console, but I didn't remember to check
> there at the time). I just exited the console and it continued to boot...

Interesting. Was it a dracut shell or a systemd one? (sometimes hard to
tell which is which, but the text usually tells you.

Knowing which should help identify why. Does it happen on subsequent boots?

> I see the following in systemctl --failed:
> 
> # systemctl --failed
> UNIT                         LOAD   ACTIVE SUB    JOB DESCRIPTION
> bootparamd.service           loaded ESC[1;31mfailed failedESC[0m
> SYSV: The bootparamd server allows older Sun workstations to net boot
> from Linux boxes. It (along with rarp) is rarely used anymore; bootp and
> dhcp have mostly replaced both of them.
> fedora-loadmodules.service   loaded ESC[1;31mfailed failedESC[0m
> Load legacy module configuration

dmorgan reported this as well, but it's a really simple script and
really shouldn't fail.

I think it must be the /etc/rc.modules script that is likely failing
here. Perhaps trying to modprobe a module that no longer exists due to
old configuration? If possible can you debug the fedora-load-modules
service and comment out one half of the script such that only the
rc.modules bit is run and confirm that's where it's bust. Then maybe
work out what in rc.modules is broken. That woudl be useful as it works
fine here.

> network.service              loaded ESC[1;31mfailed failedESC[0m
> LSB: Bring up/down networking

Mentioned above. Needs to be debugged.

> systemd-modules-load.service loaded ESC[1;31mfailed failedESC[0m
> Load Kernel Modules

Yeah this one fails for me too. Not sure why, but maybe because I've
done something stupid and symlinked stuff into /etc/modules-load.d when
I shouldn't. I'll look into it.



Incidentally, just answering your private tmp question from IRC...

This is what Lennart had to say about it:
<mezcalero> coling: the /tmp dir used by PrivateTmp lies beneath /tmp
<mezcalero> coling: hence, if /tmp is cleaned up those private tmps will
be cleaned up too
<mezcalero> coling: since the clean-up is recursive

-- 

Colin Guthrie
colin(at)mageia.org
http://colin.guthr.ie/

Day Job:
  Tribalogic Limited http://www.tribalogic.net/
Open Source:
  Mageia Contributor http://www.mageia.org/
  PulseAudio Hacker http://www.pulseaudio.org/
  Trac Hacker http://trac.edgewall.org/


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