Re: [PATCH] LoongArch: add p?d_leaf() definitions

[David Hildenbrand]

On 06.09.23 10:06, Hongchen Zhang wrote:
> Hi David,
>
> On 2023/9/6 pm 3:42, David Hildenbrand wrote:
> > On 05.09.23 08:49, Hongchen Zhang wrote:
> > > When I do LTP test, LTP test case ksm06 caused panic at
> > >      break_ksm_pmd_entry
> > >        -> pmd_leaf (Huge page table but False)
> > >        -> pte_present (panic)
> >
> > Probably there are other problematic bits without that can trigger that?
> > I suspect walk_page_range*() callers might be affected,
> I rechecked the code and found that other architectures that support
> THP have defined pmd_leaf.
> So there is not problem on other architectures.

I meant other walk_page_range*() callers on loongarch might similarly be 
affected. IOW, KSM might not be the only bit being able to trigger such 
panics on loongarch.

--
Cheers,

David / dhildenb