sparc32 linux SMP

sparc32 linux SMP

[Daniel Hellstrom]

Hello all,

I just want to report that we have been able to run the SPEC2000 integer 
tests successfully on Linux SMP 2.6.38-rc1. After 2-3 days of running 
the tests (users=2) on a dual core LEON@70MHz on Debian Etch, the 
results were correct. Two months ago I was able to run for 1-2 minutes 
before the system crashed in different ways or hanged.

Thanks all,
Daniel

Re: sparc32 linux SMP

[David Miller]

From: Daniel Hellstrom <daniel@gaisler.com>
Date: Fri, 04 Feb 2011 14:39:31 +0100

> I just want to report that we have been able to run the SPEC2000
> integer tests successfully on Linux SMP 2.6.38-rc1. After 2-3 days of
> running the tests (users=2) on a dual core LEON@70MHz on Debian Etch,
> the results were correct. Two months ago I was able to run for 1-2
> minutes before the system crashed in different ways or hanged.

I assume this is with the smp_call_function changes added to your tree,
right?

It would be nice to get the sun4m/sun4d bits written so I can integrate
that fix. :-)

Re: sparc32 linux SMP

[Daniel Hellstrom]

David Miller wrote:

>From: Daniel Hellstrom <daniel@gaisler.com>
>Date: Fri, 04 Feb 2011 14:39:31 +0100
>
>  
>
>>I just want to report that we have been able to run the SPEC2000
>>integer tests successfully on Linux SMP 2.6.38-rc1. After 2-3 days of
>>running the tests (users=2) on a dual core LEON@70MHz on Debian Etch,
>>the results were correct. Two months ago I was able to run for 1-2
>>minutes before the system crashed in different ways or hanged.
>>    
>>
>
>I assume this is with the smp_call_function changes added to your tree,
>right?
>  
>
Yes, with the patches I sent to the list. At gaisler.com distribute a 
"LEON Linux 2.6.36.3" package with all the patches I used.

>It would be nice to get the sun4m/sun4d bits written so I can integrate
>that fix. :-)
>  
>
I agree, it's a pity I'm not so good with sun sparcs. If I find some 
free time perhaps I could do an experimental implementation.. free time 
has been a rarity lately, so don't expect it to happen... :)

Daniel

Re: sparc32 linux SMP

[Sam Ravnborg]

On Mon, Feb 07, 2011 at 07:26:23PM +0100, Daniel Hellstrom wrote:
> David Miller wrote:
>
>> From: Daniel Hellstrom <daniel@gaisler.com>
>> Date: Fri, 04 Feb 2011 14:39:31 +0100
>>
>>  
>>
>>> I just want to report that we have been able to run the SPEC2000
>>> integer tests successfully on Linux SMP 2.6.38-rc1. After 2-3 days of
>>> running the tests (users=2) on a dual core LEON@70MHz on Debian Etch,
>>> the results were correct. Two months ago I was able to run for 1-2
>>> minutes before the system crashed in different ways or hanged.

This is very good news! Then we know a way forward how to fix
SS1000 / and likel some of the sun4m systems with > 1 processor too.

>>>    
>>>
>>
>> I assume this is with the smp_call_function changes added to your tree,
>> right?
>>  
>>
> Yes, with the patches I sent to the list. At gaisler.com distribute a  
> "LEON Linux 2.6.36.3" package with all the patches I used.
>
>> It would be nice to get the sun4m/sun4d bits written so I can integrate
>> that fix. :-)
I have added this to my TODO list. But as I do not have any SMP system yet...
[Working on that]

> I agree, it's a pity I'm not so good with sun sparcs. If I find some  
> free time perhaps I could do an experimental implementation.. free time  
> has been a rarity lately, so don't expect it to happen... :)
If I take a stab on it later at least I hope you find time to review the stuff.

	Sam

Re: sparc32 linux SMP

[Daniel Hellstrom]

Sam Ravnborg wrote:

>On Mon, Feb 07, 2011 at 07:26:23PM +0100, Daniel Hellstrom wrote:
>  
>
>>David Miller wrote:
>>
>>    
>>
>>>From: Daniel Hellstrom <daniel@gaisler.com>
>>>Date: Fri, 04 Feb 2011 14:39:31 +0100
>>>
>>> 
>>>
>>>      
>>>
>>>>I just want to report that we have been able to run the SPEC2000
>>>>integer tests successfully on Linux SMP 2.6.38-rc1. After 2-3 days of
>>>>running the tests (users=2) on a dual core LEON@70MHz on Debian Etch,
>>>>the results were correct. Two months ago I was able to run for 1-2
>>>>minutes before the system crashed in different ways or hanged.
>>>>        
>>>>
>
>This is very good news! Then we know a way forward how to fix
>SS1000 / and likel some of the sun4m systems with > 1 processor too.
>
>  
>
>>>>   
>>>>
>>>>        
>>>>
>>>I assume this is with the smp_call_function changes added to your tree,
>>>right?
>>> 
>>>
>>>      
>>>
>>Yes, with the patches I sent to the list. At gaisler.com distribute a  
>>"LEON Linux 2.6.36.3" package with all the patches I used.
>>
>>    
>>
>>>It would be nice to get the sun4m/sun4d bits written so I can integrate
>>>that fix. :-)
>>>      
>>>
>I have added this to my TODO list. But as I do not have any SMP system yet...
>[Working on that]
>
>  
>
>>I agree, it's a pity I'm not so good with sun sparcs. If I find some  
>>free time perhaps I could do an experimental implementation.. free time  
>>has been a rarity lately, so don't expect it to happen... :)
>>    
>>
>If I take a stab on it later at least I hope you find time to review the stuff.
>  
>
Sure, no problemo.

Daniel