BLOCK_MAGIC 218 sys/mem/kmem.c blk->magic = BLOCK_MAGIC; BLOCK_MAGIC 226 sys/mem/kmem.c if (pg->magic != PAGE_MAGIC || blk->magic != BLOCK_MAGIC) BLOCK_MAGIC 237 sys/mem/kmem.c newblk->magic = BLOCK_MAGIC; BLOCK_MAGIC 281 sys/mem/kmem.c if (blk->magic != BLOCK_MAGIC)