Unplugging USB Headset causes Kernel Panic
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
High
|
Unassigned | ||
Precise |
Fix Released
|
High
|
Chris J Arges | ||
Raring |
Fix Released
|
High
|
Unassigned |
Bug Description
SRU Justification:
Impact: When using a USB audio headset with pulseaudio, if one unplugs the headset the kernel will panic.
Fix: This issue was because of some stable patches that were backported. The problem was shown to Takashi Iwai (upstream alsa), and he created a patch to fix this issue which was then applied to the 3.4 branch of the stable tree. This patch has then been cherry-picked to 3.2 precise. I also requested that this patch be applied to the 3.2 stable branch.
Here is the link to the commit: http://
Testcase: Plug in a USB audio headset (ensure pulseaudio is working). Unplug it. If the kernel does not panic, then the test passes.
--
After a recent update which included a new kernel, my machine started to panic when I removed my USB headset after our morning stand-ups.
The headset is a Cyber Acoustics USB headset.
The crash is pretty easy to reproduce. Plugin the headset, unplug it, panic...
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-
ProcVersionSign
Uname: Linux 3.2.0-35-
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu15.1
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf2520000 irq 45'
Mixer name : 'Intel IbexPeak HDMI'
Components : 'HDA:14f15069,
Controls : 26
Simple ctrls : 8
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'
Mixer name : 'ThinkPad EC 6UHT33WW-1.14'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Date: Tue Jan 8 13:39:30 2013
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
MachineType: LENOVO 2901CTO
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.79.1
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: Upgraded to precise on 2012-03-03 (311 days ago)
dmi.bios.date: 04/25/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6UET69WW (1.49 )
dmi.board.name: 2901CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 2901CTO
dmi.product.
dmi.sys.vendor: LENOVO
Changed in linux (Ubuntu Precise): | |
importance: | Undecided → High |
Changed in linux (Ubuntu Raring): | |
status: | Incomplete → Fix Released |
Changed in linux (Ubuntu Precise): | |
status: | New → Triaged |
tags: | removed: needs-bisect |
description: | updated |
Changed in linux (Ubuntu Precise): | |
status: | In Progress → Fix Committed |
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