Re: How to identify specific wait-state for a "DE" process?

[Taylor R Campbell <campbell+netbsd-tech-kern%mumble.net@localhost>]

   Date: Wed, 6 Jan 2016 09:22:44 -0800
   From: Brian Buhrow <buhrow%nfbcal.org@localhost>

           hello.  Is there a particular reason file descriptors are closed in
   ascending order?  Traditionally, file descriptors 2, 1 and 0 are always in
   use and it seems like it might be a good idea to have those be the last to
   get closed.  I've seen some applications that close all their descriptors
   in descending order.   I thought that was odd, but I think Paul just came
   up with a good reason to do such a thing.

This only fixes the problem for certain orderings of file descriptors.

I think the best way to fix this properly will be to just modify
sys_exit to call a new filemon_prepare_exit routine that pre-closes
any filemon-owned references to files, so that filemon_close itself
will not hang.