Re: scheduler support to lock user processes out?

["M. Warner Losh" <imp%bsdimp.com@localhost>]

In message: <200802181919.UAA0000198704%zel459.zel.kfa-juelich.de@localhost>
            Matthias Drochner <M.Drochner%fz-juelich.de@localhost> writes:
: -FreeBSD acquires the big kernel lock before suspending
:  devices, holding it all the time until after resume.

For the record, this doesn't work well and is done only because the
device tree's data structures are protected by Giant.

Warner