NetBSD CVS Digest volume 2, issue 13

[Mark Kirby <mark%fishladder.co.uk@localhost>]

This issue:

Merge yamt-pf42 branch. (import newer pf from OpenBSD 4.2) ok'ed by  
peter@.  requested by core@ [YAMAMOTO Takashi]

Don't try to standby on a lid_switch pressed event, this has a few  
problems: [Jared D. McNeill]
  1. ACPI S1 doesn't work properly for many people on NetBSD
  2. It prevents someone from using their laptop with an external  
display

Make pmap_extract() lockless. Reviewed by chs@ who reports a ~1%  
reduction in system time during a kernel build on a quad core amd64  
system. [Andrew Doran]

Fix for biowait hangs, and possibly other condvar hangs.  Also should  
fix PR kern/38761.
The condvar must access the sleepq with the sleepq lock held, doing so  
is causing inconsistent sleepq state to be read.
This is because some accesses to the sleepq don't come via the cv  
code, but are call directly into sleepq_changepri and sleepq_lendpri,  
which take the sleepq lock, and removes then re-inserts lwps into the  
sleepq.
Running a build.sh with -j8 now completes on my quad-core, also tested  
by Simon@ on a 8-core server and matt@ on a quad-core. [Chris Gilbert]

Import

bind 9.5.0 [Christos Zoulas]

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