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
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