On 10/28/2009 04:01 PM, Jan Kiszka wrote:
> Avi Kivity wrote:
>    
>> On 10/27/2009 03:25 PM, Avi Kivity wrote:
>>      
>>> On 10/27/2009 03:24 PM, Avi Kivity wrote:
>>>        
>>>> Worked for me - getting to the initial prompt.  Do you have
>>>>
>>>>     CONFIG_USER_RETURN_NOTIFIER=y
>>>>
>>>> in your .config?
>>>>
>>>>          
>>> If you do, send your own .config, will try to reproduce.
>>>
>>>        
>> As I can't reproduce it, can you send a trace of what's going on?
>>
>> The kvm:kvm_msr and kvm:kvm_cr events should suffice to understand
>> what's going on.  Please enlarge your buffer size (buffer_size_kb) so we
>> don't drop events.
>>
>>      
> Find such a trace attached. I hope I caught all important events (there
> were tons of identical kvm_cr events before them which I cut off).
>    

[you can get longer, more detailed traces by using 
/sys/kernel/debug/tracing/trace instead of dmesg]

Oct 28 14:29:56 mchn012c kernel: qemu-sys-7200    0...1. 676996395us : 
kvm_msr: msr_read c0000080 = 0x500
Oct 28 14:29:56 mchn012c kernel: qemu-sys-7200    0...1. 676996403us : 
kvm_msr: msr_write c0000080 = 0xd01

So Windows is setting EFER.SCE and EFER.NX while in long mode - 
perfectly reasonable.  Can you rerun with the attached debug patch?

-- 
error compiling committee.c: too many arguments to function