What does the v_vfsmountedhere field of a vnode indicate?

Which of the following commands prints out the kernel device tree?

Which of the following interfaces is used by the driver to signal the completion of an IO initiated by a strategy call?

The OS guarantees that a thread blocked on a cv via a cv_wait call does not wakeup prematurely and hence does not need to re-check for the reason for blocking.

Which of the following interfaces needs to be implemented for a filesystem to support swap files?

Which of the following interfaces can be used to avert a thundering herd of waiters?

Which of the following is the correct locking hierarchy for filesystems which implement the mmap interface?

Which of the following registers contains the thread pointer of the thread that is currently being run?

Why should floating point operations be avoided in drivers?

What does the cv_wait_sig interface do?

Is it possible to take a core dump of a live system?