SD_DUMP_MEMORY_BUF_SIZE
local_buf = kmem_zalloc(SD_DUMP_MEMORY_BUF_SIZE, KM_SLEEP);
avail_count = (SD_DUMP_MEMORY_BUF_SIZE - strlen(title) - 3) / entry_len;
bzero(bufp, SD_DUMP_MEMORY_BUF_SIZE);
kmem_free(local_buf, SD_DUMP_MEMORY_BUF_SIZE);