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[Launchpad Bug Tracker <1091756@xxxxxxxxxxxxxxxxxx>]

You have been subscribed to a public bug by Jan Groenewald (jan-aims):

I get a very reliable kernel panic when unplugging the USB sound adapter
of Logitech G330 USB headphones/headset. I have not managed to get my
hand on the actual trace as it shows up in none of the logs.

But I did grab a pics of the panic screen.

when connected to USB3 port:
http://i.imgur.com/lruYC.jpeg

when connected to USB2 port:
http://i.imgur.com/naWv9.jpeg


To reproduce, just unplug the headset and it will panic immediately every time.

System Info:
Description:	Ubuntu 12.04.1 LTS
Release:	12.04

Ubuntu 3.2.0-35.55-generic 3.2.34
--- 
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: ALC3202 Analog [ALC3202 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu15.1
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: ALC3202 Analog [ALC3202 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  madmaze    2663 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xf2530000 irq 46'
   Mixer name	: 'Realtek ALC3202'
   Components	: 'HDA:10ec0269,17aa21f3,00100203'
   Controls      : 24
   Simple ctrls  : 13
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
   Mixer name	: 'ThinkPad EC (unknown)'
   Components	: ''
   Controls      : 1
   Simple ctrls  : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=26784358-9f9d-46fd-b096-ebc5369d54c5
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
MachineType: LENOVO 2350BF9
MarkForUpload: True
NonfreeKernelModules: symap_custom_3.2.0_35_generic_x86_64 symev_custom_3.2.0_35_generic_x86_64
Package: linux (not installed)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-35-generic root=/dev/mapper/ubuntu-root ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-35.55-generic 3.2.34
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-35-generic N/A
 linux-backports-modules-3.2.0-35-generic  N/A
 linux-firmware                            1.79.1
StagingDrivers: mei
Tags:  precise staging
Uname: Linux 3.2.0-35-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 05/25/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: G1ET41WW (1.16 )
dmi.board.asset.tag: Not Available
dmi.board.name: 2350BF9
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrG1ET41WW(1.16):bd05/25/2012:svnLENOVO:pn2350BF9:pvrThinkPadT430:rvnLENOVO:rn2350BF9:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2350BF9
dmi.product.version: ThinkPad T430
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: High
         Status: Confirmed


** Tags: apport-collected kernel-fixed-upstream precise staging
-- 
12.04 Kernel Panic when removing USB headphones
https://bugs.launchpad.net/bugs/1091756
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