b43legacy-phy0 debug: Radio initialized

Shutting down wireless seems to freeze the computer at shutdown time, and creates a kernel crash if it is done during a session (by disabling wireless in the network applet).

ProblemType: KernelOops
Annotation: Your system might become unstable now and might need to be restarted.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: SoundByLayout [SoundByLayout], device 0: Master []
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: powerpc
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: SoundByLayout [SoundByLayout], device 0: Master []
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: michal 1568 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'SoundByLayout'/'SoundByLayout'
   Mixer name : 'SoundByLayout'
   Components : ''
   Controls : 14
   Simple ctrls : 13
Date: Tue Oct 13 09:50:34 2009
DistroRelease: Ubuntu 9.10
Failure: oops
HibernationDevice: RESUME=UUID=edb613bf-c033-422f-a8de-9f60950c4b9f
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 002: ID 05ac:8203 Apple, Inc. Bluetooth HCI
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Package: linux-image-2.6.31-13-powerpc 2.6.31-13.45
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
PciMultimedia:

ProcCmdLine: root=/dev/hda8 ro quiet nosplash
ProcVersionSignature: Ubuntu 2.6.31-13.45-powerpc
RelatedPackageVersions: linux-firmware 1.21
SourcePackage: linux
Tags: kernel-oops
Title: b43legacy-phy0 debug: Radio initialized
Uname: Linux 2.6.31-13-powerpc ppc
WpaSupplicantLog: