thinkpad_acpi: WARNING: sysfs attribute hotkey_enable is deprecated and will be removed. Hotkey reporting is always enabled

[Antonio]

when opent testing system application, it's repport a problem... probably kernel

ProblemType: KernelOops
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-7-generic 2.6.38-7.39
Regression: No
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: amd64
Date: Mon Apr 4 23:01:53 2011
Failure: oops
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110330)
OopsText:
 thinkpad_acpi: WARNING: sysfs attribute hotkey_enable is deprecated and will be removed. Hotkey reporting is always enabled
 thinkpad_acpi: deprecated sysfs attribute: access by process with PID 2549
 thinkpad_acpi: WARNING: sysfs attribute hotkey_bios_mask is deprecated and will be removed. This attribute is useless.
 thinkpad_acpi: deprecated sysfs attribute: access by process with PID 2549
 thinkpad_acpi: WARNING: sysfs attribute bluetooth_enable is deprecated and will be removed. Please switch to generic rfkill before year 2010
SourcePackage: linux
Title: thinkpad_acpi: WARNING: sysfs attribute hotkey_enable is deprecated and will be removed. Hotkey reporting is always enabled
UpgradeStatus: No upgrade log present (probably fresh install)