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[Bug 1289884] Re: wireless doesn't associate after waking from suspend

 

adding linux as stack trace references cfg80211 module code

** Also affects: linux (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1289884

Title:
  wireless doesn't associate after waking from suspend

Status in “bcmwl” package in Ubuntu:
  New
Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  on a macbook pro retina, the wireless often doesn't work after waking
  from suspend.  sometimes combinations of unloading and reloading
  kernel modules and restarting network-manager works; other times i
  need to reboot before I can reconnect to the wireless.

  here's syslog after a network-manager restart during one of the times
  i needed to reboot.

  Mar  8 13:38:42 leafy ModemManager[833]: <info>  Caught signal, shutting down...
  Mar  8 13:38:42 leafy ModemManager[833]: <info>  ModemManager is shut down
  Mar  8 13:38:42 leafy ModemManager[4223]: <info>  ModemManager (version 1.0.0) starting...
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> NetworkManager (version 0.9.8.8) is starting...
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> Read config file /etc/NetworkManager/NetworkManager.conf
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> WEXT support is enabled
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> VPN: loaded org.freedesktop.NetworkManager.pptp
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> DNS: loaded plugin dnsmasq
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPlugin-Ifupdown: init!
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPlugin-Ifupdown: update_system_hostname
  Mar  8 13:38:42 leafy NetworkManager[4230]:       interface-parser: parsing file /etc/network/interfaces
  Mar  8 13:38:42 leafy NetworkManager[4230]:       interface-parser: finished parsing file /etc/network/interf
  aces
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPluginIfupdown: management mode: unmanaged
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPlugin-Ifupdown: devices added (path: /sys/devices/pci0000:0
  0/0000:00:1c.2/0000:03:00.0/net/wlan0, iface: wlan0)
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPlugin-Ifupdown: device added (path: /sys/devices/pci0000:00
  /0000:00:1c.2/0000:03:00.0/net/wlan0, iface: wlan0): no ifupdown configuration found.
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/n
  et/lo, iface: lo)
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/ne
  t/lo, iface: lo): no ifupdown configuration found.
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPlugin-Ifupdown: end _init.
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> Loaded plugin ifupdown: (C) 2008 Canonical Ltd.  To report
   bugs please use the NetworkManager mailing list.
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> Loaded plugin keyfile: (c) 2007 - 2010 Red Hat, Inc.  To r
  eport bugs please use the NetworkManager mailing list.
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPlugin-Ofono: Acquired D-Bus service com.canonical.NMOfono
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPlugin-Ofono: init!
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPlugin-Ofono: end _init.
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> Loaded plugin (null): (null)
  Mar  8 13:38:42 leafy NetworkManager[4230]:    Ifupdown: get unmanaged devices count: 0
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPlugin-Ifupdown: (13606448) ... get_connections.
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPlugin-Ifupdown: (13606448) ... get_connections (managed=fal
  se): return empty list.
  Mar  8 13:38:42 leafy NetworkManager[4230]:    keyfile: parsing HKGJ3 ... 
  Mar  8 13:38:42 leafy NetworkManager[4230]:    keyfile:     read connection 'HKGJ3'
  Mar  8 13:38:42 leafy NetworkManager[4230]:    keyfile: parsing Marin Secure ... 
  Mar  8 13:38:42 leafy NetworkManager[4230]:    keyfile:     read connection 'Marin Secure'
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPlugin-Ofono: (67124512) ... get_connections.
  Mar  8 13:38:42 leafy NetworkManager[4230]:    SCPlugin-Ofono: (67124512) connections count: 0
  Mar  8 13:38:42 leafy NetworkManager[4230]:    Ifupdown: get unmanaged devices count: 0
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> monitoring kernel firmware directory '/lib/firmware'.
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> rfkill3: found WiFi radio killswitch (at /sys/devices/pci0
  000:00/0000:00:1c.2/0000:03:00.0/ieee80211/phy0/rfkill3) (driver wl)
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> rfkill4: found WiFi radio killswitch (at /sys/devices/pci0
  000:00/0000:00:1c.2/0000:03:00.0/net/wlan0/rfkill4) (driver wl)
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> WiFi enabled by radio killswitch; enabled by state file
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> WWAN enabled by radio killswitch; enabled by state file
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> WiMAX enabled by radio killswitch; enabled by state file
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> Networking is enabled by state file
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> (wlan0): using nl80211 for WiFi device control
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> (wlan0): new 802.11 WiFi device (driver: 'wl' ifindex: 3)
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> (wlan0): exported as /org/freedesktop/NetworkManager/Devic
  es/0
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> (wlan0): device state change: unmanaged -> unavailable (re
  ason 'managed') [10 20 2]
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> (wlan0): bringing up device.
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> (wlan0): preparing device.
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> (wlan0): deactivating device (reason 'managed') [2]
  Mar  8 13:38:42 leafy NetworkManager[4230]: <warn> /sys/devices/virtual/net/lo: couldn't determine device dri
  ver; ignoring...
  Mar  8 13:38:42 leafy NetworkManager[4230]: <warn> /sys/devices/virtual/net/lo: couldn't determine device dri
  ver; ignoring...
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> urfkill disappeared from the bus
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> ModemManager available in the bus
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> (wlan0) supports 1 scan SSIDs
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> (wlan0): supplicant interface state: starting -> ready
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> (wlan0): device state change: unavailable -> disconnected 
  (reason 'supplicant-available') [20 30 42]
  Mar  8 13:38:42 leafy NetworkManager[4230]: <warn> Trying to remove a non-existant call id.
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> (wlan0): supplicant interface state: ready -> disconnected
  Mar  8 13:38:42 leafy NetworkManager[4230]: <info> (wlan0) supports 1 scan SSIDs
  Mar  8 13:38:43 leafy avahi-daemon[731]: Joining mDNS multicast group on interface wlan0.IPv6 with address fe
  80::7a31:c1ff:febb:af0c.
  Mar  8 13:38:43 leafy avahi-daemon[731]: New relevant interface wlan0.IPv6 for mDNS.
  Mar  8 13:38:43 leafy avahi-daemon[731]: Registering new address record for fe80::7a31:c1ff:febb:af0c on wlan
  0.*.
  Mar  8 13:38:44 leafy ModemManager[4223]: <warn>  Couldn't find support for device at '/sys/devices/pci0000:0
  0/0000:00:1c.2/0000:03:00.0': not supported by any plugin
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> (wlan0): supplicant interface state: disconnected -> inact
  ive
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Auto-activating connection 'HKGJ3'.
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Activation (wlan0) starting connection 'HKGJ3'
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> (wlan0): device state change: disconnected -> prepare (rea
  son 'none') [30 40 0]
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> NetworkManager state is now CONNECTING
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled
  ...
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started..
  .
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) schedul
  ed...
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) startin
  g...
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> (wlan0): device state change: prepare -> config (reason 'n
  one') [40 50 0]
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Activation (wlan0/wireless): connection 'HKGJ3' has securi
  ty, and secrets exist.  No new secrets needed.
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Config: added 'ssid' value 'HKGJ3'
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Config: added 'scan_ssid' value '1'
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Config: added 'key_mgmt' value 'NONE'
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Config: added 'auth_alg' value 'OPEN'
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Config: added 'wep_key0' value '<omitted>'
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Config: added 'wep_tx_keyidx' value '0'
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complet
  e.
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> Config: set interface ap_scan to 1
  Mar  8 13:38:52 leafy NetworkManager[4230]: <info> WiFi hardware radio set enabled
  Mar  8 13:39:02 leafy wpa_supplicant[947]: wlan0: Trying to associate with 00:26:62:5a:bd:a6 (SSID='HKGJ3' freq=2462 MHz)
  Mar  8 13:39:02 leafy NetworkManager[4230]: <info> (wlan0): supplicant interface state: inactive -> associating
  Mar  8 13:39:02 leafy kernel: [  301.876221] cfg80211: Calling CRDA for country: US
  Mar  8 13:39:02 leafy kernel: [  301.878188] cfg80211: Regulatory domain changed to country: US
  Mar  8 13:39:02 leafy kernel: [  301.878189] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
  Mar  8 13:39:02 leafy kernel: [  301.878191] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
  Mar  8 13:39:02 leafy kernel: [  301.878192] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
  Mar  8 13:39:02 leafy kernel: [  301.878192] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Mar  8 13:39:02 leafy kernel: [  301.878193] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Mar  8 13:39:02 leafy kernel: [  301.878194] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Mar  8 13:39:02 leafy kernel: [  301.878195] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
  Mar  8 13:39:02 leafy kernel: [  301.878196] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
  Mar  8 13:39:12 leafy wpa_supplicant[947]: wlan0: Authentication with 00:26:62:5a:bd:a6 timed out.
  Mar  8 13:39:12 leafy wpa_supplicant[947]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:26:62:5a:bd:a6 reason=3 locally_generated=1
  Mar  8 13:39:12 leafy wpa_supplicant[947]: wlan0: Trying to associate with 00:26:62:5a:bd:a6 (SSID='HKGJ3' freq=2462 MHz)
  Mar  8 13:39:12 leafy NetworkManager[4230]: <warn> Connection disconnected (reason -3)
  Mar  8 13:39:12 leafy kernel: [  311.653148] cfg80211: Calling CRDA to update world regulatory domain
  Mar  8 13:39:12 leafy kernel: [  311.655002] cfg80211: World regulatory domain updated:
  Mar  8 13:39:12 leafy kernel: [  311.655004] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
  Mar  8 13:39:12 leafy kernel: [  311.655005] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Mar  8 13:39:12 leafy kernel: [  311.655006] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Mar  8 13:39:12 leafy kernel: [  311.655007] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
  Mar  8 13:39:12 leafy kernel: [  311.655008] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Mar  8 13:39:12 leafy kernel: [  311.655008] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Mar  8 13:39:12 leafy kernel: [  311.768353] ------------[ cut here ]------------
  Mar  8 13:39:12 leafy kernel: [  311.768374] WARNING: CPU: 0 PID: 3975 at /build/buildd/linux-3.13.0/net/wireless/sme.c:662 __cfg80211_connect_result+0x3db/0x420 [cfg80211]()
  Mar  8 13:39:12 leafy kernel: [  311.768375] Modules linked in: lib80211_crypt_tkip wl(POF) lib80211 cfg80211 pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt snd_hda_codec_hdmi rfcomm bnep x86_pkg_temp_thermal intel_powerclamp parport_pc coretemp ppdev kvm_intel joydev nvidia(POF) snd_hda_codec_cirrus btusb bluetooth snd_hda_intel applesmc kvm bcm5974 snd_hda_codec input_polldev crct10dif_pclmul crc32_pclmul snd_hwdep snd_pcm ghash_clmulni_intel snd_page_alloc snd_seq_midi aesni_intel aes_x86_64 snd_seq_midi_event lrw gf128mul snd_rawmidi glue_helper ablk_helper cryptd snd_seq snd_seq_device mei_me snd_timer lpc_ich mei snd drm soundcore apple_gmux binfmt_misc apple_bl mac_hid nls_iso8859_1 lp parport ahci usb_storage libahci hid_generic hid_apple hid_logitech_dj usbhid hid video [last unloaded: lib80211]
  Mar  8 13:39:12 leafy kernel: [  311.768426] CPU: 0 PID: 3975 Comm: kworker/u16:5 Tainted: PF          O 3.13.0-16-generic #36-Ubuntu
  Mar  8 13:39:12 leafy kernel: [  311.768428] Hardware name: Apple Inc. MacBookPro11,3/Mac-2BD1B31983FE1663, BIOS MBP112.88Z.0138.B02.1310181745 10/18/2013
  Mar  8 13:39:12 leafy kernel: [  311.768435] Workqueue: cfg80211 cfg80211_event_work [cfg80211]
  Mar  8 13:39:12 leafy kernel: [  311.768437]  0000000000000009 ffff880079747ca8 ffffffff81710b65 0000000000000000
  Mar  8 13:39:12 leafy kernel: [  311.768441]  ffff880079747ce0 ffffffff810662cd 0000000000000000 0000000000000000
  Mar  8 13:39:12 leafy kernel: [  311.768444]  ffff88046728a418 ffff880467211800 ffff880468aac000 ffff880079747cf0
  Mar  8 13:39:12 leafy kernel: [  311.768447] Call Trace:
  Mar  8 13:39:12 leafy kernel: [  311.768453]  [<ffffffff81710b65>] dump_stack+0x45/0x56
  Mar  8 13:39:12 leafy kernel: [  311.768457]  [<ffffffff810662cd>] warn_slowpath_common+0x7d/0xa0
  Mar  8 13:39:12 leafy kernel: [  311.768460]  [<ffffffff810663aa>] warn_slowpath_null+0x1a/0x20
  Mar  8 13:39:12 leafy kernel: [  311.768470]  [<ffffffffa01632fb>] __cfg80211_connect_result+0x3db/0x420 [cfg80211]
  Mar  8 13:39:12 leafy kernel: [  311.768475]  [<ffffffff8101b763>] ? native_sched_clock+0x13/0x80
  Mar  8 13:39:12 leafy kernel: [  311.768478]  [<ffffffff8101b7d9>] ? sched_clock+0x9/0x10
  Mar  8 13:39:12 leafy kernel: [  311.768486]  [<ffffffffa01415a4>] cfg80211_process_wdev_events+0x194/0x1c0 [cfg80211]
  Mar  8 13:39:12 leafy kernel: [  311.768494]  [<ffffffffa0141610>] cfg80211_process_rdev_events+0x40/0x90 [cfg80211]
  Mar  8 13:39:12 leafy kernel: [  311.768500]  [<ffffffffa013d01e>] cfg80211_event_work+0x1e/0x30 [cfg80211]
  Mar  8 13:39:12 leafy kernel: [  311.768506]  [<ffffffff81082482>] process_one_work+0x182/0x450
  Mar  8 13:39:12 leafy kernel: [  311.768509]  [<ffffffff81083221>] worker_thread+0x121/0x410
  Mar  8 13:39:12 leafy kernel: [  311.768512]  [<ffffffff81083100>] ? rescuer_thread+0x3e0/0x3e0
  Mar  8 13:39:12 leafy kernel: [  311.768515]  [<ffffffff81089eb2>] kthread+0xd2/0xf0
  Mar  8 13:39:12 leafy kernel: [  311.768518]  [<ffffffff81089de0>] ? kthread_create_on_node+0x190/0x190
  Mar  8 13:39:12 leafy kernel: [  311.768522]  [<ffffffff817214bc>] ret_from_fork+0x7c/0xb0
  Mar  8 13:39:12 leafy kernel: [  311.768525]  [<ffffffff81089de0>] ? kthread_create_on_node+0x190/0x190
  Mar  8 13:39:12 leafy kernel: [  311.768527] ---[ end trace fd5add861d6b4628 ]---
  Mar  8 13:39:17 leafy NetworkManager[4230]: <warn> Activation (wlan0/wireless): association took too long.
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> (wlan0): device state change: config -> need-auth (reason 'none') [50 60 0]
  Mar  8 13:39:17 leafy NetworkManager[4230]: <warn> Activation (wlan0/wireless): asking for new secrets
  Mar  8 13:39:17 leafy wpa_supplicant[947]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:26:62:5a:bd:a6 reason=3 locally_generated=1
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
  Mar  8 13:39:17 leafy NetworkManager[4230]: <warn> Connection disconnected (reason -3)
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> (wlan0): supplicant interface state: associating -> disconnected
  Mar  8 13:39:17 leafy NetworkManager[4230]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> (wlan0): device state change: need-auth -> prepare (reason 'none') [60 40 0]
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> Activation (wlan0/wireless): connection 'HKGJ3' has security, and secrets exist.  No new secrets needed.
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> Config: added 'ssid' value 'HKGJ3'
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> Config: added 'scan_ssid' value '1'
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> Config: added 'key_mgmt' value 'NONE'
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> Config: added 'auth_alg' value 'OPEN'
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> Config: added 'wep_key0' value '<omitted>'
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> Config: added 'wep_tx_keyidx' value '0'
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> Config: set interface ap_scan to 1
  Mar  8 13:39:17 leafy NetworkManager[4230]: <info> (wlan0): supplicant interface state: disconnected -> scanning

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: bcmwl-kernel-source 6.30.223.141+bdcom-0ubuntu2
  ProcVersionSignature: Ubuntu 3.13.0-16.36-generic 3.13.5
  Uname: Linux 3.13.0-16-generic x86_64
  NonfreeKernelModules: wl nvidia
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Sat Mar  8 13:46:29 2014
  InstallationDate: Installed on 2014-02-24 (12 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04 "Trusty Tahr" - Alpha amd64 (20140218)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: bcmwl
  UpgradeStatus: No upgrade log present (probably fresh install)

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References