On Wed, 25 Sep 2019, Vlastimil Babka wrote: > Most of the new code is for SLOB, which has no debugging and yet > misaligns. For SLUB and SLAB, it's just passing alignment argument to > kmem_cache_create() for kmalloc caches, which means just extra few > instructions during boot, and no extra code during kmalloc/kfree itself. SLOB follows the standards for alignments in slab allocators and will correctly align if you ask the allocator for a properly aligned object.