Hmm. The new config options are incomprehensible and their help messages don't actually help. So can you fill in the blanks on what Default single-queue blk-mq I/O scheduler Default multi-queue blk-mq I/O scheduler config options mean, and why they default to none? The config phase of the kernel is one of the worst parts of the whole project, and adding these kinds of random and incomprehensible config options does *not* help. Linus