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[Launchpad Bug Tracker <1236937@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1236937

Title:
  wifi connection drop (b43 eapol timeout)

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  Experiencing problems with a BMC4331 wlan chip controlled by the b43
  kernel driver with the following environment:

  - Stock raring with b43 wifi driver on a 3.0.8-31 generic kernel on a Macbook Pro 8,1 (although this problem has  been around since kernel version 3.2),
  - Router is a D-Link 625 with Openwrt Attitude Adjustment (12.09, r36008),
  - Wireless cell is 2.4 GHz with WPA2 PSK authentication.

  The symptoms:

  - Openwrt hostapd issues a WPA rekeying request for the group temporal key (GTK),
  - B43 / wpa_supplicant times out (the router log showing a "EAPOL-Key timeout" error message),
  - Openwrt issues another GTK handshake message,
  - The sequence repeats four times after which the router unauthorises the Mac,
  - Ubuntu drops the connection and wpa_supplicant initiates a re-authentication sequence after a while.

  I have a pretty good idea of what's happening on the router side,  but
  fail to increase the logging level of wpa_supplicant on the Mac.
  "wpa_cli level" rejects any attempts to increase the level from
  "msgdump" to "excessive" so I am at a loss why wpa_supplicant / b43
  fails to acknowledge the GTK re-keying request (the b43 module
  debugging is already turned on).

  First step would be to convince the running wpa_supplicant instance to
  generate more debugging information to see why the request is not
  answered. Happy to provide more information once this is achieved.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-31-generic 3.8.0-31.46
  ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8
  Uname: Linux 3.8.0-31-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  root       2314 F.... pommed
                        christoph   3394 F.... enlightenment
                        christoph   3662 F.... pulseaudio
  CRDA:
   country DE:
   	(2400 - 2483 @ 40), (N/A, 20)
   	(5150 - 5250 @ 40), (N/A, 20), NO-OUTDOOR
   	(5250 - 5350 @ 40), (N/A, 20), NO-OUTDOOR, DFS
   	(5470 - 5725 @ 40), (N/A, 26), DFS
  Date: Tue Oct  8 17:43:10 2013
  HibernationDevice: RESUME=UUID=b3b2afbf-edea-40c5-9506-44b7f0cbf4d2
  InstallationDate: Installed on 2012-05-16 (509 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: Apple Inc. MacBookPro8,1
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   SHELL=/bin/bash
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   XDG_RUNTIME_DIR=<set>
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-31-generic root=UUID=8f6ad9f9-1f9b-42b8-8da4-664a38a3422c ro resume=/dev/sda4
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-31-generic N/A
   linux-backports-modules-3.8.0-31-generic  N/A
   linux-firmware                            1.106
  SourcePackage: linux
  UpgradeStatus: Upgraded to raring on 2013-04-27 (164 days ago)
  dmi.bios.date: 01/24/12
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBP81.88Z.0047.B27.1201241646
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-94245B3640C91C81
  dmi.board.vendor: Apple Inc.
  dmi.board.version: MacBookPro8,1
  dmi.chassis.type: 10
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-94245B3640C91C81
  dmi.modalias: dmi:bvnAppleInc.:bvrMBP81.88Z.0047.B27.1201241646:bd01/24/12:svnAppleInc.:pnMacBookPro8,1:pvr1.0:rvnAppleInc.:rnMac-94245B3640C91C81:rvrMacBookPro8,1:cvnAppleInc.:ct10:cvrMac-94245B3640C91C81:
  dmi.product.name: MacBookPro8,1
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

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