linux-image-2.6.32-20-generic kernel update produces oops at bootup

[John Mark]

after installing updated kernel above, I cannot boot into 2 different laptops - a Lenovo T400 and Lenovo T500. Both produce the same error - a kernel oops that appears on the terminal screen almost immediately after starting the boot.

Here are the kernels installed on both machines:

johnmark@croot-laptop:~/Videos$ dpkg -l linux-image-2.6.32*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
+++-====================-====================-========================================================
ii linux-image-2.6.32-1 2.6.32-17.26 Linux kernel image for version 2.6.32 on x86/x86_64
ii linux-image-2.6.32-1 2.6.32-18.27 Linux kernel image for version 2.6.32 on x86/x86_64
ii linux-image-2.6.32-1 2.6.32-19.28 Linux kernel image for version 2.6.32 on x86/x86_64
ii linux-image-2.6.32-2 2.6.32-20.29 Linux kernel image for version 2.6.32 on x86/x86_64

And in both cases, regressing back to 2.6.32-19 was a temporary fix.

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: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: johnmark 2213 F.... pulseaudio
 /dev/snd/pcmC0D0p: johnmark 2213 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfc020000 irq 17'
   Mixer name : 'Conexant CX20561 (Hermosa)'
   Components : 'HDA:14f15051,17aa211c,00100000'
   Controls : 14
   Simple ctrls : 7
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7VHT16WW-1.06'
   Mixer name : 'ThinkPad EC 7VHT16WW-1.06'
   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 00:27:45 2010
HibernationDevice: RESUME=UUID=4d83bd8f-eca5-4569-9e7e-5fe0f63b64a8
MachineType: LENOVO 7417CTO
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-19-generic root=UUID=72ab4302-ab63-4ef2-8f3f-3617966d8b0c ro quiet splash
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.33
SourcePackage: linux
dmi.bios.date: 11/26/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7UET81WW (3.11 )
dmi.board.name: 7417CTO
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:bvr7UET81WW(3.11):bd11/26/2009:svnLENOVO:pn7417CTO:pvrThinkPadT400:rvnLENOVO:rn7417CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7417CTO
dmi.product.version: ThinkPad T400
dmi.sys.vendor: LENOVO

[lyon (r-steiger)]

I'm having the same problem on Lenovo S12 netbook. After kernel oops several USB kernel messages appear but nothing more. Sometimes keys are working, sometimes not.
2.6.32-20 works flawlessly.

[lyon (r-steiger)]

Sorry, I meant 2.6.32-19 works flawlessly.