CVS commit: src/sys/kern

[Matthias Drochner <drochner%netbsd.org@localhost>]

Module Name:    src
Committed By:   drochner
Date:           Wed Feb 20 22:52:55 UTC 2008

Modified Files:
        src/sys/kern: kern_pmf.c

Log Message:
On system suspend, first get rid of the X server because it doesn't
respect the kernel device tree. (It is arguably ugly to special-case
wscons here, but as long as there is only one driver to be dealt with
it is not worth to introduce another set of hooks.)
Resume the X server at the end of resume, if everything went well.
Acquire the big KERNEL_LOCK before the device tree is walked on
suspend, until after the walk on resume. This is needed to avoid
device accesses by secondary CPUs, and it effectively keeps user
programs from interfering with the suspend process. This might be
revisited when all drivers are using private locks for MP-safeness
(but FreeBSD still does the same afaics).
It should be unnecessary now to switch secondary CPUs offline in
the powerd suspend script.


To generate a diff of this commit:
cvs rdiff -r1.11 -r1.12 src/sys/kern/kern_pmf.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.