2.5.59-mjb2 (scalability / NUMA patchset)

["Martin J. Bligh" <mbligh@aracnet.com>]

The patchset contains mainly scalability and NUMA stuff, and anything 
else that stops things from irritating me. It's meant to be pretty stable, 
not so much a testing ground for new stuff.

I'd be very interested in feedback from anyone willing to test on any 
platform, however large or small.

http://www.aracnet.com/~fletch/linux/2.5.59/patch-2.5.59-mjb2.bz2

Since 2.5.59-mjb1 (~ = changed, + = added, - = dropped)

Notes:
Added frlock xtime patches, cyclone timer fixes, sched stats. 
I have new code for 4K stacks, but haven't applied it yet (next release).

+ schedstat					Rick Lindsley
~ sched_tuneables				Robert Love
- topo_hack					Pat Gaughen
+ sysfs_fix					Pat Gaughen
+ cyclone_fixes					John Stultz
+ enable_cyclone				John Stultz
+ lost_tick					John Stultz
+ frlock_xtime					Stephen Hemminger et al.
+ frlock_xtime-i386				Stephen Hemminger et al.
+ frlock_xtime-ia64				Stephen Hemminger et al.
+ frlock_xtime-other				Stephen Hemminger et al.
+ tcp_fix					Alexey
+ numa_pci_fix					Dave Hansen

Pending:
Revised 4K stacks code
Notsc automatic enablement (someone, please ... anyone?)
scheduler callers profiling (Anton)
PPC64 NUMA patches (Anton)
Child runs first (akpm)
New qlogic driver (Badari ??)
Kexec
Linux Kernel Crash Dump

dcache_rcu					Dipankar / Maneesh
	Use RCU type locking for the dentry cache.
 
early_printk					Dave Hansen et al.
	Allow printk before console_init

confighz					Andrew Morton / Dave Hansen
	Make HZ a config option of 100 Hz or 1000 Hz

config_page_offset				Dave Hansen / Andrea
	Make PAGE_OFFSET a config option

vmalloc_stats					Dave Hansen
	Expose useful vmalloc statistics

local_pgdat					William Lee Irwin
	Move the pgdat structure into the remapped space with lmem_map

numameminfo					Martin Bligh / Keith Mannthey
	Expose NUMA meminfo information under /proc/meminfo.numa

notsc						Martin Bligh
	Enable notsc option for NUMA-Q (new version for new config system)

mpc_apic_id					Martin J. Bligh
	Fix null ptr dereference (optimised away, but ...)

doaction					Martin J. Bligh
	Fix cruel torture of macros and small furry animals in io_apic.c

kgdb						Andrew Morton / Various People
	The older version of kgdb, synched with 2.5.54-mm1

noframeptr					Martin Bligh
	Disable -fomit_frame_pointer

ingosched					Ingo Molnar
	Modify NUMA scheduler to have independant tick basis.

schedstat					Rick Lindsley
	Provide stats about the scheduler under /proc/stat

sched_tunables					Robert Love
	Provide tunable parameters for the scheduler (+ NUMA scheduler)

thread_info_cleanup (4K stacks pt 1)		Dave Hansen / Ben LaHaise
	Prep work to reduce kernel stacks to 4K
	
interrupt_stacks    (4K stacks pt 2)		Dave Hansen / Ben LaHaise
	Create a per-cpu interrupt stack.

stack_usage_check   (4K stacks pt 3)		Dave Hansen / Ben LaHaise
	Check for kernel stack overflows.

4k_stack            (4K stacks pt 4)		Dave Hansen
	Config option to reduce kernel stacks to 4K

discontig_x440					Pat Gaughen / Chandra
	SLIT/SRAT parsing for x440 discontigmem

sysfs_fix					Pat Gaughen
	Fix sysfs for x440 machines instead of some topo hack ;-)

acpi_x440_hack					Anonymous Coward
	Stops x440 crashing, but owner is ashamed of it ;-)

cyclone_fixes					John Stultz
	Fix up some stuff for the x440's cyclone timer

enable_cyclone					John Stultz
	Enable the x440's cyclone timer

lost_tick					John Stultz
	Detect lost timer ticks

frlock_xtime					Stephen Hemminger et al.
	Turn xtime_lock into an frlock to reduce contention 

frlock-xtime-i386				Stephen Hemminger et al.
	Turn xtime_lock into an frlock to reduce contention 

frlock-xtime-ia64				Stephen Hemminger et al.
	Turn xtime_lock into an frlock to reduce contention 

frlock-xtime-other				Stephen Hemminger et al.
	Turn xtime_lock into an frlock to reduce contention 

numaq_ioapicids					William Lee Irwin
	Stop 8 quad NUMA-Qs from panicing due to phys apicid "exhaustion".

oprofile_p4					John Levon
	Updates for oprofile for P4s. Needs new userspace tools.

starfire					Ion Badulescu
	64 bit aware starfire driver	

tcp_fix						Alexey
	Stop some tcp problem with hardware checksumming (e1000?)

numa_pci_fix					Dave Hansen
	Fix a potential error in the numa pci code from Stanford Checker

-mjb						Martin Bligh
	Add a tag to the makefile