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-   -   Bug#405140: linux-2.6 - xen images does not support frequency scaling (http://www.linux-archive.org/debian-kernel/5266-bug-405140-linux-2-6-xen-images-does-not-support-frequency-scaling.html)

Gunnar Wagenknecht 11-26-2007 10:39 AM

Bug#405140: linux-2.6 - xen images does not support frequency scaling
 
I can confirm this problem with linux-image-2.6.18-5-xen-amd64 on a Dell
PowerEdge 6850 with Intel Xeon CPUs. It does not occur use the non-Xen
kernel image (linux-image-2.6.18-5-amd64).

# uname -a
Linux somehostname 2.6.18-5-xen-amd64 #1 SMP Tue Oct 2 21:48:12 UTC 2007
x86_64 GNU/Linux
# dmesg | grep processor:
processor: Unknown symbol pm_idle
processor: Unknown symbol pm_idle
processor: Unknown symbol pm_idle

I wonder what the consequences are. Will my processors overheat and the
system burn?

Janusz, should I install your patch and create a custom kernel or does
my system work without it?

-Gunnar

Janusz Krzysztofik 12-04-2007 03:56 PM

Bug#405140: linux-2.6 - xen images does not support frequency scaling
 
Gunnar Wagenknecht wrote:
> I can confirm this problem with linux-image-2.6.18-5-xen-amd64 on a Dell
> PowerEdge 6850 with Intel Xeon CPUs. It does not occur use the non-Xen
> kernel image (linux-image-2.6.18-5-amd64).
>
> # uname -a
> Linux somehostname 2.6.18-5-xen-amd64 #1 SMP Tue Oct 2 21:48:12 UTC 2007
> x86_64 GNU/Linux
> # dmesg | grep processor:
> processor: Unknown symbol pm_idle
> processor: Unknown symbol pm_idle
> processor: Unknown symbol pm_idle
>
> I wonder what the consequences are. Will my processors overheat and the
> system burn?
>
> Janusz, should I install your patch and create a custom kernel or does
> my system work without it?

My server (PC clone) works without it. However, if I see that initrd images
created in Debian supported way do load thermal.ko as the very first module,
I think there must be a reason for this.

Michael Berlin wrote:
> I just read your comments on a Xen Debian bugreport:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=405140
> I've got the same problems with the Xen Image
> linux-image-2.6.18-5-xen-vserver-amd64
>
> Did I understand it right, that still nobody wants to fix this bug?
> I must admit, I'm not willed to re-compile the kernel on my own because I
> want to benefit from the Debian security updates and not always check on my
> own if patches have to be applied.

Maybe other kernel or initramfs-tools package maintainers, not only Bastian
Blank, could share their point of view?

Regards,
Janusz



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