Comment 7 for bug 204931

Happens for me too:
100% cpu time is used by NetworkManager.

Which package do I need to install to get the debugging symbols?

root@saitou:/home/randall# NetworkManager --no-daemon
NetworkManager: <info> starting...
NetworkManager: <info> New VPN service 'openvpn' (org.freedesktop.NetworkManager.openvpn).
NetworkManager: <info> New VPN service 'vpnc' (org.freedesktop.NetworkManager.vpnc).
NetworkManager: <info> ath0: Device is fully-supported using driver '(null)'.
NetworkManager: <info> ath0: driver does not support SSID scans (scan_capa 0x00).
NetworkManager: <info> nm_device_init(): waiting for device's worker thread to start
NetworkManager: <info> nm_device_init(): device's worker thread started, continuing.
NetworkManager: <info> Now managing wireless (802.11) device 'ath0'.
NetworkManager: <info> Deactivating device ath0.
NetworkManager: <info> Found dial up configuration for dsl-provider via Modem: bei_franzi
NetworkManager: <info> Updating allowed wireless network lists.
NetworkManager: <debug> [1206180557.872567] nm_device_802_11_wireless_get_activation_ap(): Forcing AP 'tina'
NetworkManager: <info> User Switch: /org/freedesktop/NetworkManager/Devices/ath0 / tina
NetworkManager: <info> Deactivating device ath0.
NetworkManager: <info> Device ath0 activation scheduled...
NetworkManager: <info> Activation (ath0) started...
NetworkManager: <info> Activation (ath0) Stage 1 of 5 (Device Prepare) scheduled...
NetworkManager: <info> Activation (ath0) Stage 1 of 5 (Device Prepare) started...
NetworkManager: <info> Activation (ath0) Stage 2 of 5 (Device Configure) scheduled...
NetworkManager: <info> Activation (ath0) Stage 1 of 5 (Device Prepare) complete.
NetworkManager: <info> Activation (ath0) Stage 2 of 5 (Device Configure) starting...
NetworkManager: <info> Activation (ath0/wireless): access point 'tina' is encrypted, but NO valid key exists. New key needed.
NetworkManager: <info> Activation (ath0) New wireless user key requested for network 'tina'.
NetworkManager: <info> Activation (ath0) Stage 2 of 5 (Device Configure) complete.
NetworkManager: <info> Activation (ath0) New wireless user key for network 'tina' received.
NetworkManager: <info> Activation (ath0) Stage 1 of 5 (Device Prepare) scheduled...
NetworkManager: <info> Activation (ath0) Stage 1 of 5 (Device Prepare) started...
NetworkManager: <info> Activation (ath0) Stage 2 of 5 (Device Configure) scheduled...
NetworkManager: <info> Activation (ath0) Stage 1 of 5 (Device Prepare) complete.
NetworkManager: <info> Activation (ath0) Stage 2 of 5 (Device Configure) starting...
NetworkManager: <info> Activation (ath0/wireless): access point 'tina' is encrypted, and a key exists. No new key needed.
NetworkManager: <WARN> nm_signal_handler(): Caught signal 11. Generating backtrace...
NetworkManager: ******************* START **********************************
NetworkManager: (no debugging symbols found)
NetworkManager: Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: [Thread debugging using libthread_db enabled]
NetworkManager: [New Thread 0xb7bce720 (LWP 3454)]
NetworkManager: [New Thread 0xb7bcdb90 (LWP 3455)]
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: (no debugging symbols found)
NetworkManager: 0xb7fcc410 in __kernel_vsyscall ()
NetworkManager: ******************* END **********************************