WARNING: at /build/buildd/linux-2.6.35/drivers/platform/x86/thinkpad_acpi.c:3796 hotkey_enabledisable_warn+0x54/0x60 [thinkpad_acpi]()
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| linux (Ubuntu) |
Expired
|
Undecided
|
Unassigned | ||
Bug Description
When running the command
$ echo enable,0x00ffffff | sudo tee /proc/acpi/
in the terminal, or having the line
$ echo enable,0x00ffffff > /proc/acpi/
in /etc/rc.local and logging in, Ubuntu 10.10 RC with 2.6.35-22 reports a serious kernel error. Those commands are, admittedly, a workaround to allow the hardware volume keys on a ThinkPad laptop (X60 Tablet, in my case) to change the software volume, but this issue did not occur with kernel 2.6.32-25 on Ubuntu 10.04.
ProblemType: KernelOops
DistroRelease: Ubuntu 10.10
Package: linux-image-
Regression: Yes
Reproducible: Yes
ProcVersionSign
Uname: Linux 2.6.35-22-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xee240000 irq 47'
Mixer name : 'Analog Devices AD1981'
Components : 'HDA:11d41981,
Controls : 20
Simple ctrls : 11
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'
Mixer name : 'ThinkPad EC 7JHT13WW-1.04'
Components : ''
Controls : 2
Simple ctrls : 1
Card29.
Simple mixer control 'Console',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
Playback channels: Mono
Limits: Playback 0 - 14
Mono: Playback 7 [50%] [on]
Date: Thu Sep 30 11:45:23 2010
Failure: oops
HibernationDevice: RESUME=
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: LENOVO 6366L6U
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdLine: BOOT_IMAGE=
RelatedPackageV
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
Title: WARNING: at /build/
dmi.bios.date: 11/20/2008
dmi.bios.vendor: LENOVO
dmi.bios.version: 7JET30WW (1.15 )
dmi.board.name: 6366L6U
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: 6366L6U
dmi.product.
dmi.sys.vendor: LENOVO
| Jesse B. Hannah (jbhannah) wrote | #1 |
| tags: | added: acpi-bad-address |
| Changed in linux (Ubuntu): | |
| status: | New → Confirmed |
| tags: | removed: regression-potential |
| penalvch (penalvch) wrote | #2 |
| summary: |
- Kernel oops when using workaround to enable ThinkPad volume keys for - software volume + WARNING: at + /build/buildd/linux-2.6.35/drivers/platform/x86/thinkpad_acpi.c:3796 + hotkey_enabledisable_warn+0x54/0x60 [thinkpad_acpi]() |
| tags: | added: regression-release |
| tags: | added: needs-bisect |
| Changed in linux (Ubuntu): | |
| status: | Confirmed → Incomplete |
| Launchpad Janitor (janitor) wrote | #3 |
| Changed in linux (Ubuntu): | |
| status: | Incomplete → Expired |
Jesse B. Hannah, thank you for reporting this bug and helping make Ubuntu better. Maverick reached EOL on April 2012.
Please see this document for currently supported Ubuntu releases:
https:/
This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue in a supported release? If so, can you try with the latest development release of Ubuntu? ISO CD images are available from http://
If it remains an issue, could you run the following command from a Terminal (Applications-
apport-collect -p linux <replace-
Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https:/
Thanks in advance.