Bug 357553

Summary:	acpi-cpufreq fails to load on an Intel Core 2 Duo T7250 with kernel 2.6.22-16
Product:	[openSUSE] openSUSE 10.3	Reporter:	Jonas Balderud <j.balderud>
Component:	Kernel	Assignee:	E-mail List <kernel-maintainers>
Status:	RESOLVED DUPLICATE	QA Contact:	E-mail List <qa-bugs>
Severity:	Major
Priority:	P5 - None	CC:	korossy, M.Keyl, robert_gartler
Version:	Final
Target Milestone:	---
Hardware:	x86-64
OS:	Other
Whiteboard:
Found By:	Customer	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Jonas Balderud 2008-01-31 11:01:54 UTC

Using the online update service that comes bundled with OpenSUSE 10.3 I recently upgraded my kernel from 2.6.22-13-0.3 to 2.6.22-16. After doing so the acpi-cpufreq module no longer loads, resulting in a loss of CPU frequency scaling.  I have subsequently downgraded the kernel to 2.6.22-13-0.3 and that seems to have resolved the problem. I therefore conclude that a bug must have been introduced in the ACPI sub system between kernel 2.6.22-13-0.3 and 2.6.22-16 (both are the default kernels for the x86_64 architecture)

Using kernel 2.6.22-16 and manually trying to load the acpi-cpufreq module results in an error message that states "no such device".

I am running a Compaq 6510b laptop with Centrino chipset and 1 GB of ram. Please advice if more information is needed

Comment 1 Pal Korossy 2008-01-31 14:33:45 UTC

The same problem on my Acer TM6291 with Core 2 Duo T5500.

Comment 2 Jonas Balderud 2008-01-31 15:13:43 UTC

I forgot to add that I also tried to load the acpi-cpufreq module from the 2.6.22-13-0.3 kernel into the 2.6.22-16 kernel. This too resulted in an error message stating "no such device".

Comment 3 Michael Keyl 2008-01-31 16:47:40 UTC

I have the same problem with a Thinkpad R61 (89196VG) with a Core 2 Duo T7300. In addition there are several ACPI boot.msg which are probably related (cf. attachment).

Comment 4 Michael Keyl 2008-01-31 16:55:31 UTC

Oops, just seen that this is a duplicate of bug # 357516. All info I could provide are already posted there.

Comment 5 Greg Kroah-Hartman 2008-01-31 17:13:27 UTC


*** This bug has been marked as a duplicate of bug 357516 ***

Comment 6 Robert Gartler 2008-02-01 08:58:31 UTC

Same problem on Dell Latitude D820 with Core Duo.