"kernel panic" upon deleting old (2.6.35.6.9) generic image

Steps to reproduce
1) Install the latest 2.6.35.7.8 kernel
2) Reboot
3) From Synaptic remove the previous 2.6.35.6.9 generic image

Expected result
The process should go on flawlessly, without errors etc.

Actual result
"Kernel Panic" error message pop-ups

*Additional Info:
OS: Ubuntu Maverick 10.10
No actual misfunctionalities encountered (besides the error message)

ProblemType: KernelOops
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-7-generic 2.6.35-7.11
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-7.11-generic 2.6.35-rc4
Uname: Linux 2.6.35-7-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
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: milensk1 1754 F.... pulseaudio
 /dev/snd/controlC1: milensk1 1754 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'nForce2'/'NVidia nForce2 with ALC650F at irq 21'
   Mixer name : 'Realtek ALC650F'
   Components : 'AC97a:414c4723'
   Controls : 50
   Simple ctrls : 33
Card1.Amixer.info:
 Card hw:1 'U0x93a0x262c'/'USB Device 0x93a:0x262c at usb-0000:00:02.1-1, full speed'
   Mixer name : 'USB Mixer'
   Components : 'USB093a:262c'
   Controls : 2
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 2
   Mono: Capture 0 [0%] [30.00dB] [on]
Date: Thu Jul 8 17:59:58 2010
Failure: oops
HibernationDevice: RESUME=UUID=427607e4-541f-4b44-a1ef-37032f3f9bf8
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
Lsusb:
 Bus 003 Device 002: ID 093a:262c Pixart Imaging, Inc.
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 002: ID 413c:2003 Dell Computer Corp. Keyboard
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK Computer INC. A7N8X2.0
ProcCmdLine: root=UUID=8f8bb3aa-5e24-4eaa-8dcc-6997b4e956cb ro quiet splash vga=0x0323
RelatedPackageVersions: linux-firmware 1.37
RfKill:

SourcePackage: linux
Title: BUG: unable to handle kernel NULL pointer dereference at 00000008
WpaSupplicantLog:

dmi.bios.date: 08/04/2004
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: ASUS A7N8X2.0 ACPI BIOS Rev 1010
dmi.board.name: A7N8X2.0
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: REV 2.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufactture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvrASUSA7N8X2.0ACPIBIOSRev1010:bd08/04/2004:svnASUSTeKComputerINC.:pnA7N8X2.0:pvrREV2.xx:rvnASUSTeKComputerINC.:rnA7N8X2.0:rvrREV2.xx:cvnChassisManufactture:ct3:cvrChassisVersion:
dmi.product.name: A7N8X2.0
dmi.product.version: REV 2.xx
dmi.sys.vendor: ASUSTeK Computer INC.