Re: Remotely rebooting a machine with state 'D' processes, how?

[Andi Kleen]

In article <[e-mail]>,
[e-mail] (Herbert Xu) writes:
> Linus Torvalds <[e-mail]> wrote:
>> In article <[e-mail]> you write:

>> You have to use the reboot() system call directly as root, with the
>> proper arguments to make it avoid doing even any sync. See

>> man 2 reboot

> How do you do this when the process in the D state is holding the BKL?

A process in D state sleeps and the BKL is always automatically dropped
when a process sleeps.

Bigger problems are other semaphores like inode sems, especially
when they belong to important shared libraries or directories.

-Andi