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

[Christophe Leroy]

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:

	select ARCH_HAS_DEBUG_VM_PGTABLE if PPC32

>   	select ARCH_HAS_DEVMEM_IS_ALLOWED
>   	select ARCH_HAS_ELF_RANDOMIZE
>   	select ARCH_HAS_FORTIFY_SOURCE
> 

What about Documentation/features/debug/debug-vm-pgtable/arch-support.txt ?

Christophe