On Fri, 24 Jan 2025 at 09:42, Vlastimil Babka <vbabka@xxxxxxx> wrote: > > On 1/24/25 09:37, Marco Elver wrote: > > 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? > > Yeah and SLUB is honouring it. Fix: https://lore.kernel.org/all/20250124120145.410066-1-elver@xxxxxxxxxx/ Thanks for pointing it out.
