NM gobbles CPU and reports repeatedly to .xsession-errors: 'Could not create object for /org/freedesktop/NetworkManager/IP6Config/<nnnn>: Method "GetAll" ... doesn't exist'

[j^]

NetworkManager consumes lots of cpu and reports this to .xsession-erros again and again:

 Could not create object for /org/freedesktop/NetworkManager/IP6Config/3628: Method "GetAll" with signature "s" on interface "org.freedesktop.DBus.Properties" doesn't exist

This happens on a desktop connected via ethernet and a laptop connected via wireless (ipv6 is enabled on the network)
On both computers NetworkManager consumes 100% cpu.

Both run up to date Ubuntu 12.04, Laptop was upgraded, Desktop newly instaled from beta2 image.
---
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
DistroRelease: Ubuntu 12.04
EcryptfsInUse: Yes
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110831)
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
Package: network-manager 0.9.4.0-0ubuntu3
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Tags: precise
Uname: Linux 3.2.0-23-generic x86_64
UpgradeStatus: Upgraded to precise on 2012-03-31 (24 days ago)
UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH
 eth0 802-3-ethernet unavailable /org/freedesktop/NetworkManager/Devices/1
 wlan0 802-11-wireless 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

[Mathieu Trudel-Lapierre (cyphermox)]

That message, in itself, is not really much of an indication of anything.

Please use 'apport-collect 987858' to add additional debugging information to this bug report. Thanks!

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

apport information

[j^ (j)]

after restarting the laptop the cpu load is normal again.

[IC Raibow (icrbow)]

Setting IPv6 to "Ignore" helps to keep CPU usage down, but error message about "GetAll" method still present.

[Thomas Hood (jdthood)]

Same as bug #1004775?

[Maciej Bliziński (maciej-blizinski)]

Same problem here. I do have IPv6 enabled in the network.

My workaround is running this command:
sudo service network-manager restart

Unfortunately, it temporarily brings down the network interfaces, so not a great thing to do when I'm in the middle of a VoIP call.

[Vladislav Kononenko (vladislavkononenko)]

I have the same problem. It seems that it only appears when the network interface receives an IPv6 address.
"sudo service network-manager restart" helps slightly, but not completely.

** (nm-applet:1438): WARNING **: Could not create object for /org/freedesktop/NetworkManager/IP6Config/1838: Method "GetAll" with signature "s" on interface "org.freed
esktop.DBus.Properties" doesn't exist

** (nm-applet:1438): WARNING **: Could not create object for /org/freedesktop/NetworkManager/IP6Config/1923: Method "GetAll" with signature "s" on interface "org.freed
esktop.DBus.Properties" doesn't exist

** Message: NM disappeared
** Message: NM appeared

** (nm-applet:1438): WARNING **: Could not create object for /org/freedesktop/NetworkManager/IP6Config/7: Method "GetAll" with signature "s" on interface "org.freedesktop.DBus.Properties" doesn't exist

** (nm-applet:1438): WARNING **: Could not create object for /org/freedesktop/NetworkManager/IP6Config/143: Method "GetAll" with signature "s" on interface "org.freedesktop.DBus.Properties" doesn't exist

...and so on.
After restarting NetworkManager is no longer occupies 50-100% CPU, but still not 0.
  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
23059 vk 20 0 943m 142m 20m S 8 4.7 0:11.36 chromium-browse
13465 root 20 0 255m 7456 4424 S 5 0.2 0:23.58 NetworkManager

[Vladislav Kononenko (vladislavkononenko)]

It's may be duplicate of https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1009879.
Indeed, I have running Transmission now.