Shared pagetables are festering. Instead I appear to be going
after scsi_malloc() and trimming down the sizes of various
data structures, and backporting things too. Oh well, one
can only do so much. lazy_buddy and gang_cpu are sort of on
hold, though progress seems to be happening.

Looks like I need to do things faster. All the stuff I've
been talking about really needs to happen, which I've known
all along but seems to be getting impressed upon me by
observing various things. No sleep this weekend...

Pushed another lazy_buddy out the door and testers/reviewers
are nowhere to be found. Maybe I should just keep moving
until they do chime in. Shared pagetables, here I come...

Catching up on stuff...

PCI Hotplug

Things have been pretty quiet with the code lately. I've
been playing
with the ACPI version of the driver on a machine in the lab
at work,
and it is almost working properly... At least until the next
ACPI
update comes along and changes everything again :)



Made a new release of pcihpview
this time making .rpm packages up to try to relieve all of the
questions I had to answer about building the program from the
tarball.

Looks like openlogging.org fell off the net and I can't bk
commit anything. Which is somewhat painful as I'd like to
avoid batching unrelated things together in a given changeset.

The bugreporter seems to have indicated that the rmap13
bug was created by an independent patch used in combination
with it. What a relief!

A number of strategies seem to have surfaced for dealing
with kva exhaustion:

1. making kernel/user address spaces disjoint
   

pagemap_lru_lock things are going well. Just taking it
slowly from here so bugs I may have missed don't show up in
larger groups than can be effectively handled, and not
feeding stuff to riel until after the issues from the last
batch of things sent to him have been handled. There's an
annoying one where the bugreporter has vaporized and I can't
get anything close to useful info as to what happened that

Catching up on stuff...


PCI Hotplug

The IBM PCI Hotplug driver got submitted and got accepted into
the 2.4 and 2.5 trees. Nice to see this code finally escape the
lab and make it into the wild. Now if only someone would
actually
use the thing...



Gave lots of documentation to someone at Compaq about how
the pcihpfs
interface works, so hopefully they will produce some good
docuementation
about how to use it.

Trying to debug the races with the pagemap_lru_lock breakup
all week. Mostly just singlestepping and trying to debug the
simulator. Nothing to see here, move on.

Much Linux USB fun has been had lately.

So nothing really got done this weekend. It wouldn't have
helped to run the benchmarks without having the analysis
code I wanted to use the benchmarks as testcases for ready
for the occasion. Reimplementing math libraries there aren't
free equivalents of is a big PITA.

I got a real profile instead of a description and the signs
point to too many calls to add_timer(), mod_timer(), and
del_timer() as opposed to cache-blowing in cascade_timers(),