Subject: Re: READ ME: new swap code, and configuration.
To: Paul Kranenburg <email@example.com>
From: Not for internal consumption <firstname.lastname@example.org>
Date: 06/12/1997 21:14:56
Paul Kranenburg sez:
* > Great! Is there (or will there be) also an "swapoff" command, for
* > flushing and then removing swap-devices?
* Not yet. The (syscall) interface is in place, but it turns out that
* the implementation has a few hard parts to crack, given the current
* interaction between the swap pager (which hasn't changed much) and
* vm_swap.c (the swap device manager).
* two possible approaches are:
* - make vm_swap.c and swap_pager.c co-operate to identify all
* blocks allocated on a swap device that is to be removed.
* - have vm_swap.c set up a placeholder map that is able to
* redirect swap I/O requests to the remaining swap devices.
D. Both of the above
At least, that's what it looks like to me...
Theorem #1: There are several ways to create a quantum black hole.
- Butter a piece of bread and tie it, buttered side up, to a cat's back.
- Launder any number of matched pairs of socks.
- Divide by zero. Someone will disappear. It might be your lucky day.