[PATCH] powerpc/mm: Remove DEBUG_VM_PGTABLE support on ppc64

[Aneesh Kumar K.V]

On 9/1/20 2:40 PM, Christophe Leroy wrote:
> 
> 
> Le 01/09/2020 à 10:15, Christophe Leroy a écrit :
>>
>>
>> Le 01/09/2020 à 10:12, Aneesh Kumar K.V a écrit :
>>> On 9/1/20 1:40 PM, Christophe Leroy wrote:
>>>>
>>>>
>>>> Le 01/09/2020 à 10:02, Aneesh Kumar K.V a écrit :
>>>>> The test is broken w.r.t page table update rules and results in kernel
>>>>> crash as below. Disable the support untill we get the tests updated.
>>>>>
>>>>>
>>>>> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.ibm.com>
>>>>
>>>> Any Fixes: tag ?
>>>>
>>>>> ---
>>>>>   arch/powerpc/Kconfig | 1 -
>>>>>   1 file changed, 1 deletion(-)
>>>>>
>>>>> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
>>>>> index 65bed1fdeaad..787e829b6f25 100644
>>>>> --- a/arch/powerpc/Kconfig
>>>>> +++ b/arch/powerpc/Kconfig
>>>>> @@ -116,7 +116,6 @@ config PPC
>>>>>       #
>>>>>       select ARCH_32BIT_OFF_T if PPC32
>>>>>       select ARCH_HAS_DEBUG_VIRTUAL
>>>>> -    select ARCH_HAS_DEBUG_VM_PGTABLE
>>>>
>>>>
>>>> You say you remove support for ppc64 but you are removing it for 
>>>> both PPC64 and PPC32. Should you replace the line by:
>>>
>>> Does it work on PPC32 with DEBUG_VM enabled? I was expecting it will 
>>> be broken there too.
>>
>> I was wondering. I have just started a build to test that on my 8xx. 
>> I'll tell you before noon (Paris).
>>
> 
> There are warnings but it boots OK. So up to you, but if you deactivate 
> it for both PPC32 and PPC64, say so in the subject like.
> 

I will update the subject line to indicate powerpc instead of ppc64

-aneesh