Re: [PATCH] Write to read-only msr MSR_IA32_PERF_STATUS is harmless, ignore it!

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On 08/31/10 11:04, Jes Sorensen wrote:
>> Just grep for the msr name in a guest kernel source that's known to
>> trigger the message.
> 
> Been there, done that! This happens with an F13 kernel during reboot.
> Ran the search on the expanded 2.6.32.8-149 tree and found no reference
> to anything trying to write it, except for KVM backing up the flag, but
> that shouldn't happen in the guest.

I've been seeing the messages with a 32-bit Fedora 10 guest running a
2.6.27 variant. The wrmsr messages are generated by the time the grub
menu appears. ie., pre-OS.

David

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