On Mon 27-11-17 19:32:18, Michal Hocko wrote: > On Mon 27-11-17 09:25:16, Andi Kleen wrote: [...] > > The reason the limit was there originally because it allows a DoS > > attack against the kernel by filling all unswappable memory up with VMAs. > > We can reduce the effect by accounting vmas to memory cgroups. As it turned out we already do. vm_area_cachep = KMEM_CACHE(vm_area_struct, SLAB_PANIC|SLAB_ACCOUNT); -- Michal Hocko SUSE Labs
