Re: Solaris 10 doesn't work under KVM

[Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>]

Joerg Roedel wrote:
> On Thu, Feb 08, 2007 at 12:04:54PM +0200, Avi Kivity wrote:
>   
>> Joerg Roedel wrote:
>>     
>>> On Thu, Feb 08, 2007 at 11:27:07AM +0200, Avi Kivity wrote:
>>>  
>>>       
>>>> Waba wrote:
>>>>    
>>>>         
>>>>> On Wed, Feb 07, 2007 at 11:42:01AM +0200, Avi Kivity wrote:
>>>>>        
>>>>>           
>>>>>> ok.  please keep the patch applied, and an addition:
>>>>>>
>>>>>> - change '#undef AUDIT' to '#define AUDIT' in mmu.c
>>>>>> - in the same file, change 'static int dbg = 1;' to 'static int dbg = 0;'
>>>>>> - 'echo 9 > /proc/sysrq-trigger'
>>>>>>
>>>>>> and run again.  Note that kvm will be very slow with this.  Watch dmesg for errors from 
>>>>>> kvm.
>>>>>>            
>>>>>>             
>>>>> When you say 'very slow', you mean it :) I couldn't reproduce the bug in
>>>>> the usual fashion because the involved processes timed out and were
>>>>> killed by the service manager.
>>>>>
>>>>> However, simply invoking "svccfg" at the prompt seems to bring in Java or
>>>>> whatever heavy stuff is causing our problem, and I got a nice SIGILL
>>>>> this way.
>>>>>
>>>>> Sadly, nothing interesting appeared in the log:
>>>>>
>>>>> [ 8544.402301] Loglevel set to 9
>>>>> [ 8548.697286] cr0_wp: 1 (before)
>>>>> [ 9868.532303] kvm: emulating exchange as write
>>>>> [16785.771040] SysRq : Changing Loglevel
>>>>> [16785.771049] Loglevel set to 0
>>>>>
>>>>>
>>>>> Please tell me if there is anything else I can try out.
>>>>>        
>>>>>           
>>>> Can you try to isolate the process which fails?
>>>>
>>>> e.g. install with qemu, start in kvm in single user mode, and use truss or something 
>>>> similar.
>>>>    
>>>>         
>>> When I tried it I got a the SIGILL ever I invoked a new program. The
>>> first SIGILL is in the starting process which is killed then. Afterwards
>>> I get a shell. Every simple command there (like ls for example) caused a
>>> SIGILL then.
>>>
>>>  
>>>       
>> Was this with the cr0.wp patch applied (commit 4348)?
>>     
>
> Yes. It was with kvm-current from last friday. The patch was already in
> there.
>   

Can this be sysenter support? i.e. is sysenter supported on opteron but 
not on athlon x2?

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.


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