On Mon, 5 Mar 2018, Alexey Dobriyan wrote: > KMALLOC_MAX_CACHE_SIZE is 32-bit so is the largest kmalloc cache size. Ok SLABs maximum allocation size is limited to 32M (see include/linux/slab.h: #define KMALLOC_SHIFT_HIGH ((MAX_ORDER + PAGE_SHIFT - 1) <= 25 ? \ (MAX_ORDER + PAGE_SHIFT - 1) : 25) And SLUB/SLOB pass all larger requests to the page allocator anyways. Acked-by: Christoph Lameter <cl@xxxxxxxxx> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>