Why should floating point operations be avoided in drivers?

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

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

What are the names of the symbol file and the memory image files following a kernel dump?

What is the maximum number of registers available to a function at any time?

Where are the 64 bit kernel modules located?

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

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

What does the v_vfsmountedhere field of a vnode indicate?

What does the VOP_INACTIVE interface do?

Which of the following interfaces are invoked by the OS to flush all data belonging to a filesystem to a disk?