Problem is gone after a complete fresh install of Saucy Salamander on the same machine.
I suspect a problem between the b43 kernel driver and the proprietary firmware as I noticed a different URL when running firmware-b43-installer as part of the wireless installation. The previous installation of the machine dates back to Precise so quite a few update cycles were done. If somebody upstream wants to have more details, please update this bug so that I can get in touch. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1236937 Title: wifi connection drop (b43 eapol timeout) Status in “linux” package in Ubuntu: Incomplete 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236937/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
