On Fri, 24 Jan 2025 at 09:13, Vlastimil Babka <vbabka@xxxxxxx> wrote: > > On 1/23/25 23:44, Christoph Lameter via B4 Relay wrote: > > From: Christoph Lameter <cl@xxxxxxxxx> > > > > KFENCE manages its own pools and redirects regular memory allocations > > to those pools in a sporadic way. The usual memory allocator features > > like NUMA, memory policies and pfmemalloc are not supported. > > Can it also violate __GFP_THISNODE constraint? That could be a problem, I > recall a problem in the past where it could have been not honoured by the > page allocator, leading to corruption of slab lists. KFENCE does not sample page allocator allocations. Is kmalloc() allowed to take __GFP_THISNODE?
