Anthony Liguori schrieb:
> Tomasz Chmielewski wrote:
>> Whenever I start a guest, I get kernel log filled with "rtc: lost some 
>> interrupts at 1024Hz".
>>   
> 
> Does rebooting the host machine with nolapic on the kernel command line 
> help?

It turned out, this option needs to be enabled:

Processor type and features  --->
    [*] Provide RTC interrupt

(or CONFIG_HPET_EMULATE_RTC=y in .config).


With it enabled, I don't have these messages anymore, and performance is 
much much better.


> What sort of system are you using?

# uname -a
Linux syn5 2.6.21-rc6 #3 SMP Fri Apr 13 16:37:31 CEST 2007 x86_64 
Intel(R) Xeon(R) CPU            3050  @ 2.13GHz GNU/Linux

KVM-18.


-- 
Tomasz Chmielewski
http://wpkg.org

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