*** This bug is a duplicate of bug 204768 ***
https://bugs.launchpad.net/bugs/204768
I can confirm it too as of now with all updates installed. Here is the
relevant section of /var/log/daemon.log
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation (wlan0_rename)
started...
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation (wlan0_rename)
Stage 1 of 5 (Device Prepare) scheduled...
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation (wlan0_rename)
Stage 1 of 5 (Device Prepare) started...
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation (wlan0_rename)
Stage 2 of 5 (Device Configure) scheduled...
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation (wlan0_rename)
Stage 1 of 5 (Device Prepare) complete.
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation (wlan0_rename)
Stage 2 of 5 (Device Configure) starting...
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation
(wlan0_rename/wireless): access point 'Marto' is encrypted, but NO valid key
exists. New key needed.
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation (wlan0_rename)
New wireless user key requested for network 'Marto'.
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation (wlan0_rename)
Stage 2 of 5 (Device Configure) complete.
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation (wlan0_rename)
New wireless user key for network 'Marto' received.
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation (wlan0_rename)
Stage 1 of 5 (Device Prepare) scheduled...
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation (wlan0_rename)
Stage 1 of 5 (Device Prepare) started...
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation (wlan0_rename)
Stage 2 of 5 (Device Configure) scheduled...
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation (wlan0_rename)
Stage 1 of 5 (Device Prepare) complete.
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation (wlan0_rename)
Stage 2 of 5 (Device Configure) starting...
Mar 23 11:43:41 eraser-laptop NetworkManager: <info> Activation
(wlan0_rename/wireless): access point 'Marto' is encrypted, and a key exists.
No new key needed.
Mar 23 11:43:42 eraser-laptop NetworkManager: <WARN> nm_signal_handler():
Caught signal 11. Generating backtrace...
Mar 23 11:43:42 eraser-laptop NetworkManager: ******************* START
**********************************
Mar 23 11:43:42 eraser-laptop NetworkManager: (no debugging symbols found)
Mar 23 11:43:42 eraser-laptop NetworkManager: Using host libthread_db library
"/lib/libthread_db.so.1".
Mar 23 11:43:42 eraser-laptop NetworkManager: (no debugging symbols found)
Mar 23 11:43:43 eraser-laptop last message repeated 10 times
Mar 23 11:43:43 eraser-laptop NetworkManager: [Thread debugging using
libthread_db enabled]
Mar 23 11:43:43 eraser-laptop NetworkManager: [New Thread 0x7fbb4fced780 (LWP
24288)]
Mar 23 11:43:43 eraser-laptop NetworkManager: [New Thread 0x40830950 (LWP
24304)]
Mar 23 11:43:43 eraser-laptop NetworkManager: [New Thread 0x41c51950 (LWP
24290)]
Mar 23 11:43:43 eraser-laptop NetworkManager: (no debugging symbols found)
Mar 23 11:43:43 eraser-laptop last message repeated 9 times
Mar 23 11:43:43 eraser-laptop NetworkManager: 0x00007fbb4e062cc6 in poll ()
from /lib/libc.so.6
Mar 23 11:43:43 eraser-laptop NetworkManager: ******************* END
**********************************
--
[hardy] Network manager causes CPU load to go to 100%
https://bugs.launchpad.net/bugs/204897
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