[Bug 561151] [NEW] reproducible oops at startup on thinkpad x61s in acpi_ex_read_data_from_field

[Martin Pool]

Public bug reported:

I have Lucid running on an Thinkpad X61s.  I've just installed this
mornings updates, and the current kernel 2.6.32-20-generic oopses at
startup in acpi_ex_read_data_from_field as shown in the attachment.
2.6.32-19-generic works correctly.  Booting in recovery mode doesn't
help. I haven't tried noacpi yet but I might do that now.

I can't page up to get the rest of the traceback and sysrq doesn't work.
I have to hard-power-cycle the machine.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-20-generic 2.6.32-20.29
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  mbp        3785 F.... pulseaudio
 /dev/snd/pcmC0D0p:   mbp        3785 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfe020000 irq 17'
   Mixer name	: 'Analog Devices AD1984'
   Components	: 'HDA:11d41984,17aa20d6,00100400'
   Controls      : 30
   Simple ctrls  : 19
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7MHT24WW-1.02'
   Mixer name	: 'ThinkPad EC 7MHT24WW-1.02'
   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]
Date: Mon Apr 12 12:43:05 2010
MachineType: LENOVO 76697DM
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-19-generic root=/dev/mapper/hostname_ssd-root ro single
ProcEnviron:
 PATH=(custom, user)
 LANG=en_AU.UTF-8
 SHELL=/bin/zsh
RelatedPackageVersions: linux-firmware 1.33
SourcePackage: linux
dmi.bios.date: 09/19/2007
dmi.bios.vendor: LENOVO
dmi.bios.version: 7NET27WW (1.08 )
dmi.board.name: 76697DM
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:bvr7NET27WW(1.08):bd09/19/2007:svnLENOVO:pn76697DM:pvrThinkPadX61s:rvnLENOVO:rn76697DM:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 76697DM
dmi.product.version: ThinkPad X61s
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 lucid needs-upstream-testing regression-potential

-- 
reproducible oops at startup on thinkpad x61s in acpi_ex_read_data_from_field
https://bugs.launchpad.net/bugs/561151
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