Public bug reported:
After upgrading to Precise, precisely every 10 minutes the network goes
down and reconnects. The machine is connected via Ethernet and gets an
address with DHCP. I've verified that the Ethernet link isn't actually
going down when this happens and that the DHCP lease isn't expiring.
There's a whole cascade of syslog messages that appear when this happens,
starting with:
> Apr 16 10:24:41 hot-27 NetworkManager[1041]: <info> (eth0): device state
> change: activated -> failed (reason 'ip-config-unavailable') [100 120 5]
> Apr 16 10:24:42 hot-27 NetworkManager[1041]: <warn> Activation (eth0) failed.
> Apr 16 10:24:42 hot-27 NetworkManager[1041]: <info> (eth0): device state
> change: failed -> disconnected (reason 'none') [120 30 0]
> Apr 16 10:24:42 hot-27 NetworkManager[1041]: <info> (eth0): deactivating
> device (reason 'none') [0]
The messages above are often preceded by a message like this (the machine is in
a native IPv6 environment), although it doesn't happen exactly every 10 minutes
like the NM disconnect:
> Apr 16 10:22:06 hot-27 kernel: [ 1102.631666] ICMPv6 RA:
> ndisc_router_discovery() failed to add default route.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: network-manager 0.9.4.0-0ubuntu3
Uname: Linux 3.4.0-030400rc2-generic-pae i686
ApportVersion: 2.0.1-0ubuntu3
Architecture: i386
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not
found.
Date: Mon Apr 16 10:19:26 2012
IfupdownConfig:
auto lo
iface lo inet loopback
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
IpRoute:
default via 10.13.0.1 dev eth0 proto static
10.13.0.0/23 dev eth0 proto kernel scope link src 10.13.1.139 metric 1
169.254.0.0/16 dev eth0 scope link metric 1000
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
ProcEnviron:
TERM=xterm
PATH=(custom, user)
LANG=en_AU.UTF-8
SHELL=/bin/bash
RfKill:
SourcePackage: network-manager
UpgradeStatus: Upgraded to precise on 2012-04-12 (3 days ago)
nmcli-con:
NAME UUID TYPE
TIMESTAMP TIMESTAMP-REAL AUTOCONNECT READONLY
DBUS-PATH
Wired connection 1 2e154def-987a-4886-b095-299000d2b3db
802-3-ethernet 1334535549 Mon 16 Apr 2012 10:19:09 EST yes
no /org/freedesktop/NetworkManager/Settings/1
Wired connection 2 e7a80f3c-fe35-47c5-bed0-fc58f610dd94
802-3-ethernet 1323408191 Fri 09 Dec 2011 16:23:11 EST yes
no /org/freedesktop/NetworkManager/Settings/0
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH
eth0 802-3-ethernet connected
/org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI
WWAN-HARDWARE WWAN
running 0.9.4.0 connected enabled enabled
enabled enabled disabled
** Affects: network-manager
Importance: Unknown
Status: Unknown
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 precise third-party-packages
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https://bugs.launchpad.net/bugs/982693
Title:
Network reconnects every 10 minutes
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