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BRANCHES revision 1.261
      1 #	$NetBSD: BRANCHES,v 1.261 2008/06/19 03:38:44 yamt Exp $
      2 #
      3 # This file contains a list of branches that exist in the NetBSD CVS
      4 # tree and their current state.
      5 #
      6 # This list is necessarily incomplete.
      7 # 
      8 # Within reason, developers may create branch and version tags at any
      9 # time for any purpose.  To avoid name collisions, private tags should
     10 # have names which begin with the developer's NetBSD login name
     11 # followed by a - or _ character (e.g., thorpej_scsipi,
     12 # thorpej-signal)
     13 # 
     14 # Any branch or version tag not listed here should be assumed to be
     15 # private to the developer who created it.  It is inappropriate for
     16 # anyone other than that developer to commit, move tags, or otherwise
     17 # modify the contents of the branch.
     18 #
     19 # Please update this file when a new branch is ready for consumption
     20 # by folks other than the maintainer, or when the use or status of an
     21 # existing branch changes significantly.
     22 #
     23 # Format:
     24 #   Branch:	  name of branch
     25 #   Description:  Purpose and intention of the branch
     26 #   Status:	  Active/Terminated/Dormant
     27 #   Start Date:	  date first instantiated
     28 #   End Date:	  date it was Terminated/made_Dormant, if any
     29 #   Base Tag:	  netbsd-1-5-base, etc.
     30 #   Maintainer:	  Somebody to blame.
     31 #   Scope:	  Portion of the tree covered.
     32 #   Notes:	  Various other info, perhaps explanation of special tags,
     33 #		  who-may-commit policies, etc.
     34 #
     35 # There are four sections to this file:
     36 #   Release branches
     37 #   Individual developers' branches (Active/Dormant)
     38 #   Individual developers' branches (Terminated), and
     39 #   other
     40 #
     41 # Entries within each section should be alphabetized.
     42 #
     43 
     44 
     45 # Release branches:
     46 
     47 Branch:		comdex-fall-1999
     48 Description:	Special release branch for pre-1.5 release at
     49 		Fall 1999 COMDEX.
     50 Status:		Terminated
     51 Start Date:
     52 End Date:
     53 Base Tag:	comdex-fall-1999-base
     54 Maintainer:	?
     55 Scope:		Entire tree.
     56 Notes:
     57 
     58 Branch:		netbsd-0-9
     59 Description:	The NetBSD 0.9 release branch
     60 Status:		Terminated
     61 Start Date:
     62 End Date:
     63 Base Tag:	netbsd-0-9-base
     64 Maintainer:	Release Engineering <releng (a] NetBSD.org>
     65 Scope:		Entire tree.
     66 Notes:		Subsidiary tags of: netbsd-0-9-ALPHA, netbsd-0-9-ALPHA2,
     67 		netbsd-0-9-BETA, netbsd-0-9-RELEASE.
     68 		Commits restricted to release engineering.
     69 
     70 Branch:		netbsd-1-0
     71 Description:	The NetBSD 1.0 release branch
     72 Status:		Terminated
     73 Start Date:
     74 End Date:
     75 Base Tag:	netbsd-1-0-base
     76 Maintainer:	Release Engineering <releng (a] NetBSD.org>
     77 Scope:		Entire tree.
     78 Notes:
     79 		Commits restricted to release engineering.
     80 
     81 Branch:		netbsd-1-1
     82 Description:	The NetBSD 1.1 release branch
     83 Status:		Terminated
     84 Start Date:
     85 End Date:
     86 Base Tag:	netbsd-1-1-base
     87 Maintainer:	Release Engineering <releng (a] NetBSD.org>
     88 Scope:		Entire tree.
     89 Notes:
     90 		Commits restricted to release engineering.
     91 
     92 Branch:		netbsd-1-2
     93 Description:	The NetBSD 1.2 release branch
     94 Status:		Terminated
     95 Start Date:
     96 End Date:
     97 Base Tag:	netbsd-1-2-base
     98 Maintainer:	Release Engineering <releng (a] NetBSD.org>
     99 Scope:		Entire tree.
    100 Notes:
    101 		Commits restricted to release engineering.
    102 
    103 Branch:		netbsd-1-3
    104 Description:	The NetBSD 1.3 release branch
    105 Status:		Terminated
    106 Start Date:
    107 End Date:
    108 Base Tag:	netbsd-1-3-base
    109 Maintainer:	Release Engineering <releng (a] NetBSD.org>
    110 Scope:		Entire tree.
    111 Notes:
    112 		Commits restricted to release engineering.
    113 
    114 Branch:		netbsd-1-4
    115 Description:	The NetBSD 1.4 release branch
    116 Status:		Terminated
    117 Start Date:	1 Apr 2000
    118 End Date:
    119 Base Tag:	netbsd-1-4-base
    120 Maintainer:	1.4 Release Engineering <releng-1-4 (a] NetBSD.org>
    121 Scope:		Entire tree.
    122 Notes:
    123 		Commits restricted to release engineering.
    124 
    125 Branch:		netbsd-1-5
    126 Description:	The NetBSD 1.5 release branch
    127 Status:		Terminated
    128 Start Date:	20 Jun 2000
    129 End Date:	26 Jan 2005
    130 Base Tag:	netbsd-1-5-base
    131 Maintainer:	1.5 Release Engineering <releng-1-5 (a] NetBSD.org>
    132 Scope:		Entire tree.
    133 Notes:
    134 		Commits restricted to release engineering.
    135 
    136 Branch:		netbsd-1-6
    137 Description:	The NetBSD 1.6 release branch
    138 Status:		Terminated
    139 Start Date:	22 May 2002
    140 End Date:
    141 Base Tag:	netbsd-1-6-base
    142 Maintainer:	1.6 Release Engineering <releng-1-6 (a] NetBSD.org>
    143 Scope:		Entire tree.
    144 Notes:
    145 		Commits restricted to Release Engineering.
    146 
    147 Branch:		netbsd-2
    148 Description:    The NetBSD 2 release branch
    149 Status:		Active
    150 Start Date:	23 Dec 2004
    151 End Date:
    152 Base Tag:	netbsd-2-base
    153 Maintainer:	2 Release Engineering <releng-2 (a] NetBSD.org>
    154 Scope:		Entire tree. (src + xsrc)
    155 Notes:
    156 		Commits restricted to Release Engineering.
    157 
    158 Branch:		netbsd-2-0
    159 Description:	Originally the NetBSD 2.0 release branch and now the branch 
    160 		tracking security/critical fixes for the NetBSD 2.0 series
    161 Status:		Active
    162 Start Date:	28 Mar 2004 and changed for security/critical function on
    163        		23 Dec 2004
    164 End Date:
    165 Base Tag:	netbsd-2-0-base
    166 Maintainer:	2.0 Release Engineering <releng-2-0 (a] NetBSD.org>
    167 Scope:		Entire tree. (src + xsrc)
    168 Notes:		Branch was re-purposed to security/critical change function
    169 		once 2.0 released. See netbsd-2 for current branch to track
    170 		NetBSD 2 tree.
    171 		Commits restricted to Release Engineering.
    172 
    173 Branch:		netbsd-2-1
    174 Description:	Tracking security/critical fixes for NetBSD 2.1
    175 Status:		Active
    176 Start Date:     26 Oct 2005 
    177 End Date:
    178 Base Tag:	netbsd-2-1-RELEASE
    179 Maintainer:	2 Release Engineering <releng-2 (a] NetBSD.org>
    180 Scope:		Entire tree. (src + xsrc)
    181 Notes:		Branch contains only security/critical fixes to
    182 		NetBSD 2.1.  For new features, use netbsd-2 branch.
    183 		Commits restricted to Release Engineering.
    184 
    185 Branch:		netbsd-3
    186 Description:	The NetBSD 3 release branch
    187 Status:		Active
    188 Start Date:	16 Mar 2005
    189 End Date:
    190 Base Tag:	netbsd-3-base
    191 Maintainer:	3 Release Engineering <releng-3 (a] NetBSD.org>
    192 Scope:		Entire tree. (src + xsrc)
    193 Notes:
    194 		Commits restricted to Release Engineering.
    195 
    196 Branch:		netbsd-4
    197 Description:	The NetBSD 4 release branch
    198 Status:		Active
    199 Start Date:	8 Aug 2006
    200 End Date:
    201 Base Tag:	netbsd-4-base
    202 Maintainer:	4 Release Engineering <releng-4 (a] NetBSD.org>
    203 Scope:		Entire tree. (src + xsrc)
    204 Notes:
    205 		Commits restricted to Release Engineering.
    206 
    207 ########################################################################
    208 # Individual developers' branches (Active/Dormant):
    209 ########################################################################
    210 
    211 Branch:		ad-audiomp
    212 Description:	Add MP locking to the audio drivers
    213 Status:		Active
    214 Start Date:	28 February 2007
    215 End Date:
    216 Base Tag:	ad-audiomp-base
    217 Maintainer:	Andrew Doran <ad (a] NetBSD.org>
    218 Scope:		kernel
    219 Notes:		Making the audio drivers MP safe is necessary before efforts
    220 		can be made to make the VM system MP safe. About 1/2 of the
    221 		drivers are converted, the remaining 1/2 need more changes.
    222 
    223 		As of import this is snapshot of work in progress and so
    224 		may not compile; in particular the midi changes are very
    225 		much "in progress". The audio component has been tested
    226 		and verified to work with emuxki and auvia. There may
    227 		be a locking issue in the ac97 code at boot.
    228 
    229 		The are two locks per device instance, an ISR lock and
    230 		a character device lock. The ISR lock replaces calls to
    231 		splaudio()/splx(), and will be held across calls to device
    232 		methods which were called at splaudio() before (e.g.
    233 		trigger_output). The character device lock is held across
    234 		calls to nearly all of the methods, excluding some only
    235 		used for initialization, e.g. get_locks. This needs to be
    236 		documented at merge time.
    237 
    238 		To test on a multi way x86 system, search for "mpsafe" in
    239 		x86/x86/intr.c and change IPL_SCHED to IPL_AUDIO. Run a job
    240 		that will acquire the ISR lock (depends on the hardware, but
    241 		"while true; do mixerctl -a > /dev/null; done" may suffice).
    242 		Play audio, run lockstat and verify that that there is
    243 		contention on the ISR lock.
    244 
    245 Branch:		bjh21-hydra
    246 Description:	Simtec Hydra support and ARM SMP in general
    247 Status:		Dormant
    248 Start Date:	18 Oct 2002
    249 End Date:
    250 Base Tag:	bjh21-hydra-base
    251 Maintainer:	Ben Harris <bjh21 (a] NetBSD.org>
    252 Scope:		sys/arch/arm sys/arch/acorn32
    253 Notes:		This code was on a branch because it involves changes to
    254 		cpuswitch.S which would otherwise make merging the
    255 		nathanw_sa branch difficult.
    256 
    257 Branch:		chris-arm-intr-rework
    258 Description:	Rework arm interrupt handling code
    259 Status:		Active
    260 Start Date:	11 Aug 2007
    261 End Date:
    262 Base Tag:	chris-arm-intr-rework-base
    263 Maintainer:	Chris Gilbert <chris (a] NetBSD.org>
    264 Scope:		sys/arch/arm sys/arch/cats (other arm archs to follow)
    265 Notes:		Rework arm interrupt code to provide a shared set of interrupt
    266 		routines, and allow improvements to be shared across all arm
    267 		based hardware.
    268 
    269 Branch:		cube-autoconf
    270 Description:	Renovate autoconf(9) API
    271 Status:		Active
    272 Start Date:	11 Dec 2007
    273 End Date:
    274 Base Tag:	cube-autoconf-base
    275 Maintainer:	Quentin Garnier <cube (a] NetBSD.org>
    276 Scope:		kernel usr.bin/config (and some other userland bits)
    277 Notes:		Address a number of issues the current autoconf(9) API has.
    278 
    279 Branch:		gmcgarry_ctxsw
    280 Description:	Separate scheduler from context-switch code
    281 Status:		Dormant
    282 Start Date:	18 December 2002
    283 End Date:
    284 Base Tag:	gmcgarry_ctxsw_base
    285 Maintainer:	Gregory McGarry <gmcgarry (a] NetBSD.org>
    286 Scope:		kernel
    287 Notes:		Removing knowledge of the scheduler and its run queues
    288 		from the machine-dependent context switch code is the
    289 		first step in cleaning up the scheduler.  It is necessary
    290 		for the newlock branch, making the scheduler SMP friendly,
    291 		adding real-time scheduler extensions, and reducing the
    292 		number of code paths for LWP and proc switching.
    293 
    294 Branch:		gmcgarry_ucred
    295 Description:	Integrate and encapsulate user credentials
    296 Status:		Dormant
    297 Start Date:	18 December 2002
    298 End Date:
    299 Base Tag:	gmcgarry_ucred_base
    300 Maintainer:	Gregory McGarry <gmcgarry (a] NetBSD.org>
    301 Scope:		kernel
    302 Notes:		merge pcred and ucred and poolify
    303 
    304 Branch:		hpcarm-cleanup
    305 Description:	Fix build problems for hpcarm
    306 Status:		Active
    307 Start Date:	31 July 2007
    308 End Date:
    309 Base Tag:	hpcarm-cleanup-base
    310 Maintainer:	Robert Swindells <rjs (a] NetBSD.org>
    311 Scope:		kernel
    312 Notes:		Modify SA11x0 interrupt code to match PXA2x0 equivalent.
    313 
    314 Branch:		itohy-usb1
    315 Description:	USB stack overhaul, mostly DMA related
    316 Status:		Active
    317 Start Date:	22 May 2007
    318 End Date:
    319 Base Tag:	itohy-usb1-base
    320 Maintainer:	ITOH Yasufumi <itohy (a] NetBSD.org>
    321 Scope:		kernel
    322 Notes:		To check out the kernel source tree,
    323 		1. check out checkout script
    324 			cvs checkout -ritohy-usb1 src/sys/dev/usb/filelist
    325 		2. update files in the branch
    326 			sh -e src/sys/dev/usb/filelist
    327 
    328 Branch:		kame
    329 Description:	KAME Project
    330 Status:		Dormant
    331 Start Date:	28 Jun 1999
    332 End Date:
    333 Base Tag:
    334 Maintainer:	Jun-ichiro itojun Hagino <itojun (a] NetBSD.org>
    335 Scope:		kernel
    336 Notes:		http://www.kame.net
    337 		Used for "reference" purposes for early part of KAME
    338 		integration effort.  The branch is not actively used, as I
    339 		(itojun) use patch(1) and diff(1) for the KAME syncs.
    340 
    341 Branch:		keiichi-mipv6
    342 Description:	Developing Mobile IPv6 function
    343 Status:		Active
    344 Start Date:	21 Feb 2008
    345 End Date:	
    346 Base Tag:	keiichi-mipv6-base
    347 Maintainer:	Keiichi Shima <keiichi (a] netbsd.org>
    348 Scope:		sys, sbin, libc/net, distrib/sets, share/man/
    349 Notes:		http://www.mobileip.jp/
    350 		Work on developing Mobile IPv6/NEMO BS functions and
    351 		related MIPv6 based advanced functions on NetBSD.
    352 		Please consult keiichi for joining this activity.
    353 
    354 Branch:		kent-audio2
    355 Description:	In-kernel audio mixer
    356 Status:		Active
    357 Start Date:	Sun Jan 16 2005
    358 End Date:	
    359 Base Tag:	kent-audio2-base
    360 Maintainer:	TAMURA Kent <kent (a] NetBSD.org>
    361 Scope:		kernel (audio device drivers)
    362 Notes:		http://mail-index.netbsd.org/tech-kern/2004/12/03/0007.html
    363 		Please consult with the maintainer before committing
    364 		to this branch.
    365 		This branch is not expected to be compilable yet.
    366 
    367 Branch:		matt-timespec
    368 Description:	Convert the kernel to struct timespec as its primary time
    369 		storage mechanism.
    370 Status:		Inactive
    371 Start Date:	2005-02-19
    372 End Date:
    373 Base Tag:	
    374 Maintainer:	Matt Thomas <matt (a] NetBSD.org>
    375 Scope:		kernel
    376 Notes:	
    377 
    378 Branch:		matt-mips64
    379 Description:	Rototill the mips code to support LP64 mips and N32/N64 ABIs
    380 Status:		Active
    381 Start Date:	2007-07-17
    382 End Date:
    383 Base Tag:	matt-mips64-base
    384 Maintainer:	Matt Thomas <matt (a] NetBSD.org>
    385 Scope:		kernel & userland
    386 Notes:	
    387 
    388 Branch:		matt-armv6
    389 Description:	Rototill the arm code to support features present in the
    390 		v6 of the ARM Architecture.  Additionally, clean up things
    391 		along the way to use common practices.
    392 Status:		Active
    393 Start Date:	2007-08-27
    394 End Date:
    395 Base Tag:	matt-armv6-base
    396 Maintainer:	Matt Thomas <matt (a] NetBSD.org>
    397 Scope:		kernel & userland
    398 Notes:	
    399 
    400 Branch:		mjf-devfs2
    401 Description:	device file system supporting dynamic device nodes
    402 Status:		Active
    403 Start Date:	21 February 2008
    404 End Date:
    405 Base Tag:	mjf-devfs2-base
    406 Maintainer:	Matt Fleming <mjf (a] NetBSD.org>
    407 Scope:		kernel and userland
    408 Notes:		This branch will move away from the static device nodes that
    409 		are created with MAKEDEV scripts and allow nodes to be created
    410 		and removed dynamically as devices are attached and detached
    411 		from the machine.
    412 
    413 Branch:		mjf-ufs-trans
    414 Description:	file system transactions for ufs
    415 Status:		Active
    416 Start Date:	12 March 2007
    417 End Date:
    418 Base Tag:	mjf-ufs-trans-base
    419 Maintainer:	Matt Fleming <mjf (a] NetBSD.org>
    420 Scope:		kernel
    421 Notes:
    422 
    423 Branch:		nick-net80211-sync
    424 Description:	sync of net80211 with FreeBSD
    425 Status:		Active
    426 Start Date:	21 February 2008
    427 End Date:
    428 Base Tag:	nick-net80211-base
    429 Maintainer:	Nick Hudson <skrll (a] NetBSD.org>
    430 Scope:		sys/
    431 Notes:		Sync'ing net80211 with FreeBSD and drivers update. The branch is
    432 		currently only the kernel, but will likely extend to some userland
    433 		areas.
    434 
    435 Branch:	  	pkgviews
    436 Description:  	package views, enabling multiple conflicting packages to co-exist
    437 Status:		Active
    438 Start Date:	22 July 2002
    439 End Date:
    440 Base Tag:	pkgviews
    441 Maintainer:	Alistair Crooks <agc (a] NetBSD.org>
    442 Scope:		pkgsrc, basesrc/usr.sbin/pkg_install
    443 Notes:		A more flexible infrastructure for third-party packages by
    444 		allowing multiple conflicting packages and versions to co-exist
    445 		within the same tree
    446 
    447 Branch:		rpaulo-netinet-merge-pcb
    448 Description:	merge in6pcb with inpcb
    449 Status:		Dormant
    450 Start Date:	Wed Feb 01 2006
    451 End Date:	
    452 Base Tag:	rpaulo-netinet-merge-pcb-base
    453 Maintainer:	Rui Paulo <rpaulo (a] NetBSD.org>
    454 Scope:		src/sys
    455 Notes:		No longer active due to the lack of time. If you plan to
    456 		continue this branch, sys/netinet/in_pcb.h already contains
    457 		the proposed structure layout (which was roughly discussed
    458 		in the tech-net mailing list).
    459 		I also defined INP_*() macros to mimicate FreeBSD's inpcb
    460 		locking style, but currently they do nothing and are not
    461 		yet called at the correct places (needs discussion about
    462 		kernel fine-grained locking).
    463 		To continue this branch, one needs to read all the relevant
    464 		inpcb/in6pcb source files and change the function names,
    465 		structure names, structure fields according to the new
    466 		layout (in6pcb is gone).
    467 		Don't try to build a kernel from this branch because it won't
    468 		work. The missing pieces required to do a complete build
    469 		were not committed because they were incomplete and generated
    470 		panics.
    471 		You shouldn't need to worry about KAME syncs because
    472 		they did most of them by now.
    473 		After the work is done, you are required to test the branch
    474 		(before the merge to -current) with an interop IPv6 test.
    475 		More info at: http://www.tahi.org/
    476 
    477 Branch:		rtr-xorg-branch
    478 Description:	xorg & static build alterations to src/x11
    479 Status:		Active
    480 Start Date:	Nov 15 2004
    481 End Date:	
    482 Base tag:	rtr-xorg-branch-base
    483 Maintainer:	Tyler R. Retzlaff <rtr (a] NetBSD.org>
    484 Scope:		x11
    485 		distrib/sets/lists
    486 		share/mk/bsd.x11.mk
    487 		share/mk/bsd.own.mk
    488 		etc/mtree/NetBSD.dist
    489 Notes:		Requires parts of xsrc/xfree (HEAD)
    490 		xsrc/local, xsrc/xfree/xc/programs/Xserver/hw/netbsd
    491 		Requires xorg (XORG-6_8_1)
    492 
    493 Branch:  	wrstuden-fixsa
    494 Description:	Fix a number of issues present with Scheduler Activations.
    495 Status: 	Active
    496 Start Date:	15 May 2007
    497 End Date:
    498 Base Tag:	wrstuden-fixsa-base
    499 Maintainer:	Bill Stouder-Studenmund <wrstuden (a] NetBSD.org>
    500 Scope:		src, though all the interesting stuff is in the kernel
    501 		or lib/libpthread or maybe gdb.
    502 Notes:		This branch is based off of the netbsd-4 branch!
    503 		This branch is intended to stage improvements for the
    504 		Scheduler Activations system for NetBSD 4. Improvements
    505 		include not allocating memory while preparing to tsleep(),
    506 		reducing inappropriate upcall delivery (hopefully also
    507 		eliminating the need to mlock stacks), and being
    508 		able to pthread_kill() running threads. At this date,
    509 		most goals have been achieved. This branch also includes
    510 		fixes to gdb to support working with threaded apps.
    511 
    512 Branch:  	wrstuden-revivesa
    513 Description:	Fix a number of issues present with Scheduler Activations.
    514 Status: 	Active
    515 Start Date:	10 May 2008
    516 End Date:
    517 Base Tag:	wrstuden-revivesa-base
    518 Maintainer:	Bill Stouder-Studenmund <wrstuden (a] NetBSD.org>
    519 Scope:		src, though all the interesting stuff is in the kernel
    520 Notes:		This branch is intended to revive Scheduler Activations
    521 		in -current in the 5.0 era. This branch's main goal is
    522 		to re-add syscall compatability so that SA-based libpthread
    523 		programs can run with a -current kernel. 1:1 threading will
    524 		remain the NetBSD-default. This branch will re-add necessary
    525 		upcall support, and will also serve as a chance to clean
    526 		out cruft that had accumulated in the implementation over
    527 		time.
    528 
    529 Branch:		yamt-kmem
    530 Description:	
    531 		- separate kernel va allocation from kernel fault handling.
    532 		- make kmem_alloc interrupt-safe.
    533 Status:		Active
    534 Start Date:	Sun Dec  9 2007
    535 End Date:	
    536 Base Tag:	yamt-kmem-base3
    537 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
    538 Scope:		src/sys  (src/common is tagged but not branched)
    539 Notes:		
    540 		todo:
    541 		- investigate if PMAP_PREFER equivalent can be done
    542 		  with vmem_xalloc.  find a tester with hardware for it.
    543 		- g/c replaced code, including kmapent and malloc.
    544 		- consider to remove other submaps.  eg. mb_map
    545 
    546 Branch:		yamt-nfs-mp
    547 Description:	make nfs client mp-safe
    548 Status:		Active
    549 Start Date:	Sun Apr 27 2008
    550 End Date:	
    551 Base Tag:	yamt-nfs-mp-base2
    552 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
    553 Scope:		src/sys  (src/common is tagged but not branched)
    554 Notes:		
    555 
    556 Branch:		reinoud-bufcleanup
    557 Description:	implement and evaluate struct buf usage cleanup strategies.
    558 		Ideas currently in mind (preference for b):
    559 		a)
    560 			1. use of bio_ops per buffer.
    561 			2. allow chaining/overloading of functions in bio_ops
    562 			   and provide some private context.
    563 			3. extend the bio_ops with commonly used functionality
    564 			   like pending action counting, custom context passing,
    565 			   last minute processing of buffer data, buffer cache
    566 			   etc.
    567 			4. investigate the use of the kcont()
    568 			   continuation-passing framework for async io
    569 			   completion notification for bufs
    570 			...
    571 		b)
    572 			1. all sequencing use of B_CALL replaced by
    573 			   device-threads, if possible generic code around BUFQ
    574 			2. possibly use kcont() for async IO finished signaling
    575 			3. counter of pending and queued actions requestable
    576 			   by IOCTL interface?
    577 			4. implement `last minute buffer fixup' calls and maybe
    578 			   even finished I/O calls as vnode operations
    579 			...
    580 Status:		Active
    581 Start Date:	Thu Mar 15 2007
    582 End Date:
    583 Base Tag:	reinoud-bufcleanup-base
    584 Maintainer:	Reinoud Zandijk <reinoud (a] NetBSD.org>
    585 Scope:		src/sys and src/common
    586 Notes:		Used as experiment sandbox and if successful hopefully one day
    587 		to be integrated.
    588 
    589 Branch:		simonb-wapbl
    590 Description:	Wasabi's journaling filesystem support
    591 Status:		Active
    592 Start Date:	Tue Jun 10 2008
    593 End Date:
    594 Base Tag:	simonb-wapbl-base
    595 Maintainer:	Simon Burge <simonb (a] NetBSD.org>
    596 Scope:		src/distrib/sets/lists/comp src/distrib/utils/sysinst
    597 		src/include
    598 		src/sbin/fsck_ffs src/sbin/fsdb src/sbin/mount_ffs
    599 		src/sys
    600 Notes:		Still has a number of issues:
    601 		 - Can't log the root filesystem (or any FS if /dev isn't an
    602 		   ffs) or update existing mounts from non-logged to logged.
    603 		   See kern/38057 - a fix for the PR has been committed but
    604 		   at this stage it doesn't play well with WAPBL.
    605 		 - Log must currently live at end of partition.
    606 		 - No log locators.
    607 		 - Some heavy workload performance issues on SMP machines.
    608 		 - Some stability issues on SMP machines.
    609 
    610 Branch:		thorpej-atomic
    611 Description:	Implementation of an atomic memory operations API modeled
    612 		after the one in Solaris 10.
    613 Status:		Active
    614 Start Date:	Apr 11 2007
    615 End Date:
    616 Base tag:	thorpej-atomic-base
    617 Maintainer:	Jason Thorpe <thorpej (a] netbsd.org>
    618 Scope:		src/common
    619 		src/sys
    620 Notes:		Base atomic primitives need to be implemented for
    621 		all of the supported architectures:
    622 
    623 		alpha		DONE
    624 		arm		DONE
    625 		hppa
    626 		i386		DONE
    627 		ia64
    628 		m68k		DONE (except for 68010)
    629 		mips
    630 		ns32k
    631 		powerpc		DONE except for membar_*()
    632 		powerpc64	DONE except for membar_*()
    633 		sh3
    634 		sparc		DONE except for membar_*()
    635 		sparc64		DONE except for membar_*()
    636 		vax
    637 		x86_64		DONE
    638 
    639 		Tested:
    640 
    641 		alpha		NO
    642 		arm		NO
    643 		hppa		NO
    644 		i386		NO
    645 		ia64		NO
    646 		m68k		NO
    647 		mips		NO
    648 		ns32k		NO
    649 		powerpc		NO
    650 		powerpc64	NO
    651 		sh3		NO
    652 		sparc		NO
    653 		sparc64		NO
    654 		vax		NO
    655 		x86_64		NO
    656 
    657 		TODO:
    658 
    659 		all		- Need to replace mb_*() with membar_*().
    660 
    661 				- Audit MUTEX_CAS() and RWLOCK_CAS() uses
    662 				  to see of membar_enter() is required here.
    663 
    664 				- Talk to ad@ -- figure out of non-atomic
    665 				  mutex / rwlock release is actually safe.
    666 
    667 		arm		- Consider using a RAS technique like
    668 				  MIPS uses for _lock_cas() and the mutex
    669 				  stubs.  Possibly do more than one atomic
    670 				  op as a RAS.  Possibly implement mutex
    671 				  stubs using the technique.
    672 
    673 		m68k		- Need to do 68010 support.
    674 		
    675 		i386		- Need to change when x86_patch() is called
    676 				  so we can test ncpus.
    677 
    678 		powerpc		- Figure out if we need barriers in the
    679 				  atomic ops themselves (hopefully not!)
    680 
    681 		x86_64		- Need to change when x86_patch() is called
    682 				  so we can test ncpus.
    683 
    684 ########################################################################
    685 # Individual developers' branches (Terminated):
    686 ########################################################################
    687 
    688 Branch:		bouyer-scsipi
    689 Description:	Integration of atapi support
    690 Status:		Terminated
    691 Start Date:
    692 End Date:
    693 Base Tag:
    694 Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>
    695 Scope:		kernel
    696 Notes:		Superseded by thorpej_scsipi
    697 
    698 Branch:		bouyer-xen2
    699 Description:	update xen port to xen 2.0, with support for domain0 operations
    700 Status:		Terminated
    701 Start Date:	Dec 13 2004
    702 End Date:	Mar 10 2005
    703 Base Tag:	netbsd-2-base
    704 Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>
    705 Scope:		src/sys/arch/xen
    706 Notes:
    707 
    708 Branch:		bouyer-xenamd64
    709 Description:	add amd64 support to Xen and rework some parts to share more code between Xen and others
    710 Status:		Terminated
    711 Start Date:	18 Oct 2007
    712 End Date:	22 Nov 2007
    713 Base Tag:	bouyer-xenamd64-base
    714 Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>
    715 Scope:		kernel
    716 Notes:		
    717 
    718 Branch:		bouyer-xeni386
    719 Description:	switch xen on i386 to the x86 pmap and the xen/x86/x86_xpmap.c bootstrap, and add i386 PAE support
    720 Status:		Terminated
    721 Start Date:	10 Dec 2007
    722 End Date:	23 Jan 2008
    723 Base Tag:	bouyer-xeni386-base
    724 Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>
    725 Scope:		kernel
    726 Notes:		
    727 
    728 Branch: 	chap-midi
    729 Description:	Renovation of MIDI support
    730 Status: 	Terminated; merged to -current
    731 Start Date:	19 May 2006
    732 End Date:	30 Jun 2006
    733 Base Tag:	chap-midi-base
    734 Maintainer:	Chapman Flack <chap (a] NetBSD.org>
    735 Scope:		sys, share/man, usr.bin
    736 Notes:
    737 
    738 Branch:		chs-ubc
    739 Description:	Unified Buffer Cache
    740 Status:		Terminated
    741 Start Date:
    742 End Date:
    743 Base Tag:	chs-ubc-base
    744 Maintainer:	Chuck Silvers <chs (a] NetBSD.org>
    745 Scope:		kernel
    746 Notes:
    747 
    748 Branch:		chs-ubc2
    749 Description:	 Unified Buffer Cache
    750 Status:		Terminated; merged to -current
    751 Start Date:
    752 End Date:
    753 Base Tag:	chs-ubc2-base, chs-ubc2-newbase
    754 Maintainer:	Chuck Silvers <chs (a] NetBSD.org>
    755 Scope:		kernel
    756 Notes:
    757 
    758 Branch:		cjs-build-against-obj-dir
    759 Description:	?
    760 Status:		?
    761 Start Date:
    762 End Date:
    763 Base Tag:
    764 Maintainer:	Curt Sampson <cjs (a] NetBSD.org>
    765 Scope:		Entire tree.
    766 Notes:
    767 
    768 Branch:		eeh-paddr_t
    769 Description:	use separate types for virtual vs. physical addresses
    770 Status:		Terminated; merged to -current
    771 Start Date:
    772 End Date:
    773 Base Tag:	eeh-paddr_t-base
    774 Maintainer:	Eduardo Horvath <eeh (a] NetBSD.org>
    775 Scope:		kernel
    776 Notes:		This is needed to support 32-bit kernels on sparc64.
    777 
    778 Branch:		elad-kernelauth
    779 Description:	Native NetBSD implementation of Apple's kernel authorization
    780 		based on TN2127. This is a "clean-room" implementation to
    781 		avoid any licensing issues.
    782 Status:		Terminated; merged to -current
    783 Start Date:	Tue Mar	 7 2006
    784 End Date:	Mon May 15 2006
    785 Base Tag:	elad-kernelauth-base
    786 Maintainer:	Elad Efrat <elad (a] NetBSD.org>
    787 Scope:		src/sys, src/share/man/man9/Makefile,
    788 		src/share/man/man9/kauth.h, src/distrib/sets/lists/comp/mi
    789 Notes:
    790 
    791 Branch:		fvdl-softdep
    792 Description:	FFS soft dependencies
    793 Status:		Terminated; merged to -current
    794 Start Date:
    795 End Date:
    796 Base Tag:	fvdl-softdep-base
    797 Maintainer:	Frank van der Linden <fvdl (a] NetBSD.org>
    798 Scope:		kernel
    799 Notes:
    800 
    801 Branch:		gehenna-devsw
    802 Description:	auto-generation of devsw table
    803 Status:		Terminated
    804 Start Date:	16 May 2002
    805 End Date:	6 Sep 2002
    806 Base Tag:	gehenna-devsw-base
    807 Maintainer:	MAEKAWA Masahide <gehenna (a] NetBSD.org>
    808 Scope:		syssrc
    809 Notes:		The goal is to get rid of the existing device switch tables in
    810 		port-dependent conf.c and to generate them dynamically by
    811 		config(8).
    812 
    813 Branch:		is-newarp
    814 Description:	ARP for non-Ethernet
    815 Status:		Terminated; merged before NetBSD 1.3
    816 Start Date:	1996/10/13
    817 End Date:	1997/03/15
    818 Base Tag:	is-newarp-base
    819 Maintainer:	Ignatios Souvatzis <is (a] NetBSD.org>
    820 Scope:		kernel
    821 Notes:
    822 
    823 Branch:		jmcneill-pm
    824 Description:	Power management framework overhaul, ACPI improvements
    825 Status:		Terminated; merged before NetBSD 5.0
    826 Start Date:	3 Aug 2007
    827 End Date:	9 Dec 2007
    828 Base Tag:	jmcneill-pm-base
    829 Maintainer:	Jared D. McNeill <jmcneill (a] NetBSD.org>
    830 Scope:		kernel
    831 Notes:		
    832 
    833 Branch:		kenh-if-detach
    834 Description:	Interface detach support.
    835 Status:		?
    836 Start Date:
    837 End Date:
    838 Base Tag:	kenh-if-detach-base
    839 Maintainer:	Ken Hornstein <kenh (a] NetBSD.org>
    840 Scope:		kernel
    841 Notes:
    842 
    843 Branch:		kent-audio1
    844 Description:	Audio converter pipeline
    845 Status:		Terminated; merged to -current
    846 Start Date:	Tue Dec  7 2004
    847 End Date:	Tue Jan 11 2005
    848 Base Tag:	kent-audio1-base
    849 Maintainer:	TAMURA Kent <kent (a] NetBSD.org>
    850 Scope:		kernel (audio device drivers)
    851 Notes:		http://mail-index.netbsd.org/tech-kern/2004/12/03/0007.html
    852 		Please consult with the maintainer before committing
    853 		to this branch.
    854 
    855 Branch:		kqueue
    856 Description:	kqueue kernel event notification mechanism (from FreeBSD)
    857 Status:		Terminated; merged to -current
    858 Start Date:	Tue Jul 10 23:08:38 EST 2001
    859 End Date:	Tue Oct 24 09:14:14 GMT 2002
    860 Base Tag:	kqueue-base
    861 Maintainer:	Jaromir Dolecek <jdolecek (a] NetBSD.org>
    862 Scope:		kernel, libc/sys, share/man/man9, usr.bin/fstat
    863 Notes:		Integration of FreeBSD's kqueue(2) mechanism, with various
    864 		local internal changes to better suit NetBSD, and
    865 		enhancements such as looking up filters by name or
    866 		number, and dynamic registration of "user" filters.
    867 		The work is complete as is, but is awaiting more
    868 		feedback from various kernel gurus before going mainline.
    869 
    870 Branch:		ktrace-lwp
    871 Description:	ktrace support for lwp ids.
    872 Status:		Terminated; merged to -current
    873 Start Date:	Wed Jul  2 15:27:30 UTC 2003
    874 End Date:	Sun Dec 11 12:25:29 UTC 2005
    875 Base Tag:	ktrace-lwp-base
    876 Maintainer:	Darren Reed <darrenr (a] NetBSD.org>
    877 Scope:		sys
    878 Notes:		
    879 
    880 Branch:		marc-pcmcia
    881 Description:	PCMCIA support
    882 Status:		Terminated; merged to -current
    883 Start Date:
    884 End Date:
    885 Base Tag:	marc-pcmcia-base, marc-pcmcia-bp
    886 Maintainer:	Marc Horowitz <marc (a] NetBSD.org>
    887 Scope:		kernel
    888 Notes:
    889 
    890 Branch:		minoura_x68k_bus_h
    891 Description:	bus_space(9) and bus_dma(9) implementation for x68k
    892 Status:		Terminated; merged to -current
    893 Start Date:	23 Dec 1998
    894 End Date:	16 Mar 1999
    895 Base Tag:	minoura_x68k_bus_h-base
    896 Maintainer:	Minoura Makoto <minoura (a] NetBSD.org>
    897 Scope:		sys/arch/x68k
    898 Notes:
    899 
    900 Branch:		minoura-xpg4dl
    901 Description:	Citrus Project locale subsystem
    902 Status:		Terminated; (partly) merged to -current
    903 Start Date:	28 March 2000
    904 End Date:
    905 Base Tag:	minoura-xpg4dl-base
    906 Maintainer:	Minoura Makoto <minoura (a] NetBSD.org>
    907 Scope:		basesrc, syssrc, sharesrc
    908 Notes:		Citrus Project is developing dynamically-loadable, codeset-
    909 		independent locale subsystem.  Part of the implementation
    910 		(LC_CTYPE) called XPG4DL is now integrated to -current.
    911 
    912 Branch:		mjf-devfs
    913 Description:	device file system supporting dynamic device nodes
    914 Status:		Terminated
    915 Start Date:	12 November 2007
    916 End Date:	21 February 2008
    917 Base Tag:	mjf-devfs-base
    918 Maintainer:	Matt Fleming <mjf (a] NetBSD.org>
    919 Scope:		kernel and userland
    920 Notes:		This branch will move away from the static device nodes that
    921 		are created with MAKEDEV scripts and allow nodes to be created
    922 		and removed dynamically as devices are attached and detached
    923 		from the machine.
    924 
    925 Branch:		mrg-vm-swap
    926 Description:	dynamic swap allocation, swap-to-files support
    927 Status:		Terminated; abandoned for mrg-vm-swap2
    928 Start Date:	12 February 1997
    929 End Date:	15 March 1997
    930 Base Tag:	[none]
    931 Maintainer:	Matthew R. Green <mrg (a] NetBSD.org>
    932 Scope:		kernel
    933 Notes:
    934 
    935 Branch:		mrg-vm-swap2
    936 Description:	dynamic swap allocation, swap-to-files support
    937 Status:		Terminated; merged to -current
    938 Start Date:	4 May 1997
    939 End Date:	12 June 1997
    940 Base Tag:	mrg-vm-swap2-base
    941 Maintainer:	Matthew R. Green <mrg (a] NetBSD.org>
    942 Scope:		kernel
    943 Notes:
    944 
    945 Branch:		nathanw_sa
    946 Description:	Scheduler activations
    947 Status:		Terminated; merged to -current
    948 Start Date:	5 March 2001
    949 End Date:	18 January 2003
    950 Base Tag:	nathanw_sa_base
    951 Maintainer:	Nathan Williams <nathanw (a] NetBSD.org>
    952 Scope:		kernel, libc, libkvm, libpthread, libpthread_dbg, include, 
    953 		bin/ps usr.bin/systat usr.bin/top usr.bin/w
    954 		gnu/dist/toolchain/gdb gnu/usr.bin/gdb
    955 Notes:		The idea of scheduler activations is described in the
    956 		classic paper by Anderson et al., in ACM Transactions
    957 		a on Computer Systems volume 10 issue 1 (1992),which
    958 		can be found at
    959 		http://www.acm.org/pubs/citations/journals/tocs/1992-10-1/p53-anderson/
    960 		Many ideas in the implementation are based on the
    961 		implementation of scheduler activations added to Mach
    962 		3.0 and described by Davis et al. in the University of
    963 		Washington CS tech report 92-08-93, which can be found
    964 		at
    965 		ftp://ftp.cs.washington.edu/tr/1992/08/UW-CSE-92-08-03.PS.Z
    966 
    967 		My USENIX paper on the subject can be found at
    968 		http://web.mit.edu/nathanw/www/usenix/
    969 
    970 		Please consult with the maintainer before committing
    971 		to this branch.
    972 		Other tags starting with nathanw_sa reserved for
    973 		branch management and are not guaranteed to be stable.
    974 
    975 		Trunk tagged with "nathanw_sa_before_merge" prior to
    976 		merging branch down to trunk.  Branch tagged with
    977 		"nathanw_sa_end" to indicate the ending revision of
    978 		the branch.
    979 
    980 Branch:		newlock
    981 Description:	New locking primitives, based on Solaris's
    982 Status:		Terminated
    983 Start Date:	March 9, 2002
    984 End Date:	February 12, 2007
    985 Base Tag:	newlock-base
    986 Maintainer:	Jason R. Thorpe <thorpej (a] NetBSD.org>
    987 Scope:		Kernel
    988 Notes:		The goal is to replace the existing lockmgr() and
    989 		simple_lock() based locking mechanisms with the
    990 		primitives found in Solaris: mutexes and rwlocks.
    991 		Superseded by the newlock2 branch.
    992 
    993 Branch:		newlock2
    994 Description:	New locking primitives, based on Solaris's
    995 Status:		Terminated
    996 Start Date:	September 9, 2006
    997 End Date:	February 12, 2007
    998 Base Tag:	newlock2-base
    999 Maintainer:	Andrew Doran <ad (a] NetBSD.org>
   1000 Scope:		Kernel
   1001 Notes:		As per the newlock branch, however given the amount of time
   1002 		the original branch has lain dormant, a new one has been
   1003 		created.  Goals:
   1004 		- Implement new locking primitives on most-used ports.
   1005 		- Minor locking improvements.
   1006 		- Remove spinlockmgr().
   1007 
   1008 Branch:		nick-csl-alignment
   1009 Description:	Provide correctly aligned __cpu_simple_lock_t for hppa
   1010 Status:		Terminated
   1011 Start Date:	2007-07-18
   1012 End Date:
   1013 Base Tag:	nick-csl-alignment-base5
   1014 Maintainer:	Nick Hudson <skrll (a] NetBSD.org>
   1015 Scope:		sys, lib/libpthread, lib/libpthread_dbg
   1016 Notes:	
   1017 
   1018 Branch:		perseant-lfsv2
   1019 Description:	LFS incompatible on-disk data structure changes
   1020 Status:		Terminated
   1021 Start Date:	27 June 2001
   1022 End Date:	16 July 2001
   1023 Base Tag:	perseant-lfsv2-base
   1024 Maintainer:	Konrad Schroder <perseant (a] NetBSD.org>
   1025 Scope:		basesrc/{sbin/*lfs,libexec/lfs_cleanerd,usr.sbin/dumplfs}, syssrc/sys/ufs
   1026 Notes:		This branch should be short-lived, I expect to merge as soon
   1027 		as the data structures required for unremove are in and tested.
   1028 
   1029 Branch:		ppcoea-renovation
   1030 Description:	General renovation and cleanup of all OEA PowerPC ports.
   1031 Status:		Terminated; merged to -current
   1032 Start Date:	30 April 2007
   1033 End Date:	15 October 2007
   1034 Base Tag:	ppcoea-renovation-base
   1035 Maintainer:	Tim Rightnour <garbled (a] netbsd.org>
   1036 Scope:		src/sys/arch
   1037 Notes:		This branch is for a general cleanup of all OEA-based PowerPC
   1038 		ports. OEA (Operating Environment Architecture) PowerPC refers
   1039 		to the 601, 603, 604, and similar chips.  Specifically, not the
   1040 		403/401 and other embedded chips. The general concept is to get
   1041 		them all compiling, and sharing as much code as possible.  All
   1042 		developers are welcome to commit to this branch.
   1043 
   1044 Branch:		thorpej-devvp
   1045 Description:	replace dev_t with struct vnode * in devsw entry points
   1046 Status:		Terminated
   1047 Start Date:	Sep 6 2001
   1048 End Date:	???
   1049 Base Tag:	thorpej-devvp-base
   1050 Maintainer:	Jason Thorpe <thorpej (a] NetBSD.org>
   1051 Scope:		syssrc
   1052 Notes:		Kernels built from this branch are not expected
   1053 		to function correctly at this time.
   1054 
   1055 		Ports known to compile on this branch:
   1056 			alpha
   1057 			i386
   1058 
   1059 Branch:		peter-altq
   1060 Description:	New ALTQ framework:
   1061 		- sync with KAME sources
   1062 		- share mtag/name mapping functions
   1063 		- separate altq + pf attachment
   1064 Status:		Terminated; merged to -current
   1065 Start Date:	March 16, 2006
   1066 End Date:	October 12, 2006
   1067 Base Tag:	peter-altq-base
   1068 Maintainer:	Peter Postma <peter (a] NetBSD.org>,
   1069 		Martin Husemann <martin (a] NetBSD.org>,
   1070 		Matthias Scheler <tron (a] NetBSD.org>
   1071 Scope:		dist/pf dist/ipf distrib/sets/lists sys usr.sbin/altq
   1072 Notes:		Only the first item in the description was finished
   1073 		in this branch.
   1074 
   1075 Branch:		sommerfeld_i386mp_1
   1076 Description:	Multiprocessor support for i386 using Intel MP BIOS.
   1077 Status:		Terminated; merged to -current
   1078 Start Date:	21 Feb 2000
   1079 End Date:	01 Oct 2002
   1080 Base Tag:	sommerfeld_i386mpbase_1
   1081 Maintainer:	Bill Sommerfeld <sommerfeld (a] NetBSD.org>
   1082 Scope:		sys/arch/i386
   1083 Notes:
   1084 		Code committed to the branch has booted to multiuser 
   1085 		on at least one system.
   1086 
   1087 		Not guaranteed to compile against mainline since -current
   1088 		may have changed incompatibly with the last branch update;
   1089 		use "cvs update -D" to roll-back the rest of the tree to match.
   1090 
   1091 		Please get explicit permission from the maintainer 
   1092 		before each commit, or your changes will be backed out.
   1093 		Other tags starting with sommerfeld_ are private to 
   1094 		the developer and are guaranteed to be unstable.
   1095 		Only the maintainer should move tags.
   1096 
   1097 		Note that this branch uses a DIFFERENT scheme for 
   1098 		syncing with the mainline.  the maintainer uses some private
   1099 		scripts for keeping them in sync; if you make commits 
   1100 		to the branch to "resynchronize" things, you'll
   1101 		probably do it wrong; instead, ask the maintainer to
   1102 		resynchronize things.
   1103 
   1104 		See sys/arch/i386/TODO on the branch for a list of known
   1105 		issues with the branch.
   1106 
   1107 Branch:		thorpej-mips-cache
   1108 Description:	overhaul MIPS cache support code
   1109 Status:		Terminated; merged to -current
   1110 Start Date:	Oct 23 2001
   1111 End Date:	Nov 14 2001
   1112 Base Tag:	thorpej-mips-cache-base
   1113 Scope:		syssrc
   1114 Notes:		This branch needs more debugging, testing, and more
   1115 		ports need to be converted to the new world order.
   1116 
   1117 		The following processors have had cache ops
   1118 		written:
   1119 
   1120 			* R2000/R3000 (cache_r3k) -- light testing,
   1121 			  needs to be beat on a lot more to make
   1122 			  sure it's working.
   1123 
   1124 			* R4000/R4400 (cache_r4k) -- mhitch (a] NetBSD.org
   1125 			  tracked down a bug, which has been fixed.
   1126 
   1127 			  Confirmed working on R4000-with-L2.
   1128 
   1129 			  Confirmed working on R4400-no-L2 and
   1130 			  R4400-with-L2.
   1131 
   1132 			* R4600/R5000 (cache_r5k) -- shin (a] NetBSD.org
   1133 			  has committed fixes to this code.
   1134 
   1135 			  Confirmed working on R4600 v2 (SGI IP-22 with
   1136 			  no SysAD L2 cache).
   1137 
   1138 			  Confirmed working on RM5260 (Algorithmics P-5064).
   1139 
   1140 			* TX39 (cache_tx39) -- uch (a] NetBSD.org has
   1141 			  committed fixes to this code.  Awaiting
   1142 			  confirmation that it is working properly.
   1143 
   1144 			* R5900 (cache_r5900) -- uch (a] NetBSD.org has
   1145 			  written this code and tested it on a
   1146 			  PlayStation 2.
   1147 
   1148 		The following ports have been updated to compile (and
   1149 		use optimized-for-processor bus_dma routines).  Those
   1150 		that have been tested and work are marked with [WORKING].
   1151 
   1152 			* algor		[WORKING]
   1153 
   1154 			* arc		[WORKING]
   1155 
   1156 			* pmax		[WORKING]
   1157 
   1158 			* playstation2	[WORKING]
   1159 					Needs optimized bus_dmamap_sync().
   1160 
   1161 			* hpcmips	[need verification that this is working]
   1162 					Needs optimized bus_dmamap_sync().
   1163 
   1164 			* sgimips	[WORKING]
   1165 					Needs optimized bus_dmamap_sync().
   1166 
   1167 			* cobalt	[need testing]
   1168 
   1169 			* mipsco	[need testing]
   1170 
   1171 			* newsmips	[need testing]
   1172 
   1173 Branch:		thorpej_scsipi
   1174 Description:	SCSI/ATAPI midlayer rewrite.
   1175 Status:		Terminated; merged to -current
   1176 Start Date:
   1177 End Date:	Apr 25 2001
   1178 Base Tag:	thorpej_scsipi_base, thorpej_scsipi_nbase
   1179 Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>,
   1180 		Jason Thorpe <thorpej (a] NetBSD.org>
   1181 Scope:		syssrc
   1182 Notes:		When a change from -current is pulled up please move the
   1183 		thorpej_scsipi_base tag to the revision you're syncing with.
   1184 		thorpej_scsipi_nbase is private to maintainer (only
   1185 		used when syncing the whole branch with HEAD).
   1186 		Just before the merge, syssrc has been tagged with
   1187 		thorpej_scsipi_beforemerge
   1188 
   1189 Branch:		thorpej-signal
   1190 Description:	?
   1191 Status:		?
   1192 Start Date:
   1193 End Date:
   1194 Base Tag:	thorpej-signal-base
   1195 Maintainer:	Jason Thorpe <thorpej (a] NetBSD.org>
   1196 Scope:		kernel
   1197 Notes:
   1198 
   1199 Branch:		thorpej-setroot
   1200 Description:	?
   1201 Status:		Terminated; merged to -current
   1202 Start Date:
   1203 End Date:
   1204 Base Tag:
   1205 Maintainer:	Jason Thorpe <thorpej (a] NetBSD.org>
   1206 Scope:		kernel
   1207 Notes:
   1208 
   1209 Branch:		simonb-timecounters
   1210 Description:	Port FreeBSD timecounters to NetBSD
   1211 Status:		Terminated
   1212 Start Date:	Sat Feb 04 2006
   1213 End Date:	Wed Jun 07 2006
   1214 Base Tag:	simonb-timecounters-base
   1215 Maintainer:	Simon Burge <simonb (a] NetBSD.org>,
   1216 		Frank Kardel <kardel (a] NetBSD.org>
   1217 Scope:		sys, sbin/savecore, usr.bin/vmstat, usr.sbin/ntp
   1218 Notes:		early (partial conversion) commit to -current
   1219 		ok'ed by core@ on 20060605 for testing and further
   1220 		simplified conversion
   1221 
   1222 Branch:		vmlocking
   1223 Description:	Make VM and file system framework MP safe
   1224 Status:		Terminated
   1225 Start Date:	13 March 2007
   1226 End Date:	4 December 2007
   1227 Base Tag:	vmlocking-base
   1228 Maintainer:	Andrew Doran <ad (a] NetBSD.org>
   1229 Scope:		kernel
   1230 Notes:		Superseded by vmlocking2 branch.
   1231 
   1232 Branch:		vmlocking2
   1233 Description:	Make VM and file system framework MP safe
   1234 Status:		Terminated
   1235 Start Date:	4 December 2007
   1236 End Date:	2 January 2008
   1237 Base Tag:	vmlocking2-base3
   1238 Maintainer:	Andrew Doran <ad (a] NetBSD.org>
   1239 Scope:		kernel
   1240 Notes:		Goals:
   1241 
   1242 		- Make VM system / trap handling MP safe.
   1243 		- Replace simplelocks with mutexes.
   1244 		- Make file system framework MP safe.
   1245 
   1246 		Status by architecture:
   1247 
   1248 		  alpha		done
   1249 		  i386		done
   1250 		  amd64		done
   1251 		  mips		done
   1252 		  sparc		need pmap/trap locking changes	
   1253 		  sparc64	done
   1254 		  arm		done
   1255 		  powerpc	done
   1256 		  hppa		done
   1257 		  sh3		done
   1258 		  m68k		done
   1259 		  xen		need pmap/trap locking changes
   1260 
   1261 		Remaining MI work to do:
   1262 
   1263 		- Check aliased vnode handling. There may be problems.
   1264 
   1265 		Remaining problems:
   1266 
   1267 		- LFS stalls due to v_numoutput leak.
   1268 
   1269 Branch:		wrstuden-devbsize
   1270 Description:	Modify buffer cache to deal with different devices having
   1271 		different block sizes. Also DEV_BSIZE would go away.
   1272 Status:		Terminated
   1273 Start Date:	Aug or Sept 1999
   1274 End Date:	1 Apr 2000
   1275 Base tag:	wrstuden-devbsize-base
   1276 Maintainer:	Bill Studenmund <wrstuden (a] NetBSD.org>
   1277 Scope:		kernel
   1278 Notes:		No longer active due to lack of time, and introduction
   1279 		of UBC. In terms of UBC, the primary cache for
   1280 		file data is the VM cache, which needs to operate
   1281 		in terms of VM pages. As no existing device has native
   1282 		pages the same size as our VM pages, there already is
   1283 		a mapping going on between the VM system and the
   1284 		underlying blocks. So it would be easier and cleaner
   1285 		to adjust that to deal w/ different block sizes.
   1286 		Also with UBC, all i/o is in terms of bytes at an offset
   1287 		with a certain length, so the exact block size isn't a big
   1288 		deal.
   1289 
   1290 		Any other wrstuden-devbsize tag may (and should) go away.
   1291 
   1292 Branch:		yamt-idlelwp
   1293 Description:	idle lwp, and some changes depending on it.
   1294 
   1295 		1. separate context switching and thread scheduling.
   1296 		   (cf. gmcgarry_ctxsw)
   1297 		2. implement idle lwp.
   1298 		3. clean up related MD/MI interfaces.
   1299 		4. make scheduler(s) modular.
   1300 
   1301 Status:		Terminated; merged to -current
   1302 Start Date:	Fri Feb 17 2007
   1303 End Date:	Thu May 17 2007
   1304 Base Tag:	yamt-idlelwp-base8
   1305 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1306 Scope:		src/sys  (src/common is tagged but not branched)
   1307 Notes:		
   1308 		Status of ports:
   1309 		  alpha			[ Done, UP tested, MP not tested ]
   1310 		  i386			[ Done, tested ]
   1311 		  amd64			[ Done, tested ]
   1312 		  mips			[ Done, both MIPS1 and MIPS3 tested]
   1313 		  sparc			[ Done, UP tested, MP might have
   1314 					  some problem after newlock2 merge ]
   1315 		  sparc64		[ Done, tested ]
   1316 		  arm			[ Done, SA1 tested. See PR 36548 ]
   1317 		  macppc/powerpc	[ Done, OEA tested ]
   1318 		  hppa			[ Done, tested ]
   1319 		  sh3			[ Done, tested ]
   1320 		  vax			[ Done, UP tested, MP untested ]
   1321 		  m68k			[ Done, tested on several ports ]
   1322 		  ns32k			[ broken ]
   1323 		  ia64			[ broken ]
   1324 		  pdp10			[ broken ]
   1325 
   1326 		How to adapt a port?
   1327 
   1328 		- unify cpu_switch, cpu_exit, cpu_switchto into
   1329 		  a single cpu_switchto.  see cpu_switchto.9.
   1330 
   1331 		- implement cpu_idle.  see cpu_idle.9.
   1332 
   1333 		- add a flag argument to cpu_need_resched.
   1334 		  handle RESCHED_IMMED flag, which means "cause a preemption
   1335 		  as soon as possible."  eg. in the case of MULTIPROCESSOR,
   1336 		  send an IPI to the target cpu.
   1337 
   1338 		- "curlwp == NULL" is not a valid check for idle state anymore.
   1339 		  use "(curlwp->l_flag & LW_IDLE) != 0" instead.  curlwp is
   1340 		  almost always non-NULL, with exceptions like early on boot.
   1341 
   1342 		- remove idle pcbs.
   1343 
   1344 		- (if MULTIPROCESSOR) tweak processor trampoline code.
   1345 
   1346 		- (if MULTIPROCESSOR) call mi_cpu_attach when attaching
   1347 		  secondary processors.
   1348 
   1349 		- (if schedhz!=0) call schedclock regardless of the value of
   1350 		  curlwp.
   1351 
   1352 		- of course, update MD users of scheduler/switching API.
   1353 
   1354 Branch:		yamt-lazymbuf
   1355 Description:	change the way to share mbuf external storage so that
   1356 		it can work without kernel_lock.
   1357 Status:		Terminated; merged to -current
   1358 Start Date:	Wed Jul  6 2005
   1359 End Date:	Mon Mar 24 2008
   1360 Base Tag:	yamt-lazymbuf-base14
   1361 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1362 Scope:		src/sys  (src/common is tagged but not branched)
   1363 Notes:		
   1364 
   1365 Branch:		yamt-km, yamt-km-doc
   1366 Description:	simplify/improve kernel memory management and bootstrap
   1367 Status:		Terminated; merged to -current
   1368 Start Date:	Tue Jan 25 2005
   1369 End Date:	Fri Apr  1 2005
   1370 Base Tag:	yamt-km-base{,2,3,4}, yamt-km-doc-base
   1371 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1372 Scope:		yamt-km: src/sys
   1373 		yamt-km-doc: src/share/man/man9/uvm.9
   1374 Notes:		http://mail-index.NetBSD.org/tech-kern/2004/12/25/0005.html
   1375 
   1376 		the followings are per-port status.
   1377 		(account names mean "tested by".)
   1378 
   1379 		works enough to go to multiuser:
   1380 			alpha, i386, xen (yamt@)
   1381 			pc532 (simonb@)
   1382 			alpha, i386, mac68k, macppc, pmax, shark,
   1383 			    sparc, sparc64, sun3, x68k (chs@)
   1384 			cobalt, dreamcast, hp300, news68k, newsmips,
   1385 			    sun3x (tsutsui@)
   1386 			amiga (mhitch@)
   1387 			cats, hp700 (skrll@)
   1388 			xen (bouyer@)
   1389 
   1390 		known to have the same problem as trunk:
   1391 			vax (chs@, stuck while running kvm_mkdb)
   1392 
   1393 		known to have a problem:
   1394 			luna68k (and, if any, other m68k ports which use TTR)
   1395 			needs to be revisited.
   1396 			-> for luna68k, although not tested,
   1397 			   Sysmap has been moved to avoid kva conflict with
   1398 			   I/O ranges.
   1399 
   1400 		buildable:
   1401 			src/sys/arch/acorn26/conf/GENERIC
   1402 			src/sys/arch/acorn32/conf/GENERIC
   1403 			src/sys/arch/algor/conf/P6032
   1404 			src/sys/arch/alpha/conf/GENERIC
   1405 			src/sys/arch/alpha/conf/GENERIC.MP
   1406 			src/sys/arch/amd64/conf/GENERIC
   1407 			src/sys/arch/amd64/conf/GENERIC.MP
   1408 			src/sys/arch/amiga/conf/GENERIC
   1409 			src/sys/arch/arc/conf/GENERIC
   1410 			src/sys/arch/atari/conf/MILAN-PCIIDE
   1411 			src/sys/arch/bebox/conf/GENERIC
   1412 			src/sys/arch/cats/conf/GENERIC
   1413 			src/sys/arch/cesfic/conf/GENERIC
   1414 			src/sys/arch/cobalt/conf/GENERIC
   1415 			src/sys/arch/dreamcast/conf/GENERIC
   1416 			src/sys/arch/evbarm/conf/TS7200
   1417 			src/sys/arch/evbppc/conf/WALNUT
   1418 			src/sys/arch/evbsh3/conf/COMPUTEXEVB
   1419 			src/sys/arch/evbsh5/conf/CAYMAN64
   1420 			src/sys/arch/hp300/conf/GENERIC
   1421 			src/sys/arch/hp700/conf/GENERIC
   1422 			src/sys/arch/hpcarm/conf/JORNADA728
   1423 			src/sys/arch/hpcmips/conf/GENERIC
   1424 			src/sys/arch/hpcsh/conf/GENERIC
   1425 			src/sys/arch/hpcsh/conf/HPW650PA
   1426 			src/sys/arch/i386/conf/GENERIC
   1427 			src/sys/arch/i386/conf/GENERIC.MP
   1428 			src/sys/arch/i386/conf/XEN0
   1429 			src/sys/arch/i386/conf/XENU
   1430 			src/sys/arch/ibmnws/conf/GENERIC
   1431 			src/sys/arch/iyonix/conf/GENERIC
   1432 			src/sys/arch/luna68k/conf/GENERIC
   1433 			src/sys/arch/mac68k/conf/GENERIC
   1434 			src/sys/arch/macppc/conf/GENERIC
   1435 			src/sys/arch/macppc/conf/GENERIC.MP
   1436 			src/sys/arch/mipsco/conf/GENERIC
   1437 			src/sys/arch/mmeye/conf/GENERIC
   1438 			src/sys/arch/mvme68k/conf/GENERIC
   1439 			src/sys/arch/netwinder/conf/GENERIC
   1440 			src/sys/arch/news68k/conf/GENERIC
   1441 			src/sys/arch/newsmips/conf/GENERIC
   1442 			src/sys/arch/next68k/conf/GENERIC
   1443 			src/sys/arch/ofppc/conf/GENERIC
   1444 			src/sys/arch/pc532/conf/GENERIC
   1445 			src/sys/arch/pmax/conf/GENERIC
   1446 			src/sys/arch/prep/conf/GENERIC
   1447 			src/sys/arch/sandpoint/conf/GENERIC
   1448 			src/sys/arch/sbmips/conf/GENERIC
   1449 			src/sys/arch/sgimips/conf/GENERIC32_IP3x
   1450 			src/sys/arch/shark/conf/GENERIC
   1451 			src/sys/arch/sparc/conf/GENERIC
   1452 			src/sys/arch/sparc/conf/GENERIC.MP
   1453 			src/sys/arch/sparc64/conf/GENERIC
   1454 			src/sys/arch/sparc64/conf/GENERIC.MP
   1455 			src/sys/arch/sun2/conf/GENERIC
   1456 			src/sys/arch/sun3/conf/GENERIC
   1457 			src/sys/arch/vax/conf/GENERIC
   1458 			src/sys/arch/vax/conf/GENERIC.MP
   1459 			src/sys/arch/x68k/conf/GENERIC
   1460 
   1461 			src/sys/arch/playstation2/conf/GENERIC
   1462 
   1463 Branch:		yamt-pdpolicy
   1464 Description:	play with page replacement policy
   1465 		- separate page replacement policy from the rest of kernel
   1466 		- implement alternative replacement policy
   1467 		- related read-ahead adjustment?
   1468 Status:		Terminated; merged to -current
   1469 Start Date:	Sun Mar  5 2006
   1470 End Date:	Sat Sep 16 2006
   1471 Base Tag:	yamt-pdpolicy-base9
   1472 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1473 Scope:		src/sys  (src/common is tagged but not branched)
   1474 Notes:		
   1475 
   1476 Branch:		yamt-pf42
   1477 Description:	import newer pf from OpenBSD 4.2
   1478 Status:		Terminated; merged to -current
   1479 Start Date:	Sat Apr 19 2008
   1480 End Date:	Wed Jun 18 2008
   1481 Base Tag:	yamt-pf42-base4
   1482 Maintainer:	Peter Postma <peter (a] NetBSD.org>,
   1483 		YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1484 Scope:		src
   1485 Notes:		see sys/dist/pf/net/TODO
   1486 
   1487 Branch:		yamt-readahead
   1488 Description:	play with file readahead
   1489 Status:		Terminated; merged to -current
   1490 Start Date:	Mon Nov 14 2005
   1491 End Date:	Wed Nov 30 2005
   1492 Base Tag:	yamt-readahead-base3
   1493 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1494 Scope:		src/sys
   1495 Notes:		
   1496 
   1497 Branch:		yamt-uio_vmspace
   1498 Description:	uio_lwp/uio_segflg -> uio_vmspace
   1499 Status:		Terminated; merged to -current
   1500 Start Date:	Mon Dec 31 2005
   1501 End Date:	Wed Mar  1 2006
   1502 Base Tag:	yamt-uio_vmspace-base5
   1503 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1504 Scope:		src/sys
   1505 Notes:		
   1506 
   1507 Branch:		yamt-splraiseipl
   1508 Description:	finish implementing splraiseipl (and makeiplcookie).
   1509 		http://mail-index.NetBSD.org/tech-kern/2006/07/01/0000.html
   1510 
   1511 		- completes workqueue(9) and netbt.
   1512 		- fix PR/33218.
   1513 
   1514 Status:		Terminated; merged to -current
   1515 Start Date:	Mon Sep 18 2006
   1516 End Date:	Fri Dec 22 2006
   1517 Base Tag:	yamt-splraiseipl-base5
   1518 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1519 Scope:		src/sys  (src/common is tagged but not branched)
   1520 Notes:		
   1521 		tested (by who):
   1522 			alpha		(yamt)
   1523 			alpha		(pavel)
   1524 			amd64		(reported privately)
   1525 			cobalt		(tsutsui)
   1526 			ews4800mips	(tsutsui)
   1527 			hp300		(tsutsui)
   1528 			hpcarm		(reported privately)
   1529 			i386		(yamt)
   1530 			macppc		(tsutsui)
   1531 			news68k		(tsutsui)
   1532 			sgimips(IP32)	(tsutsui)
   1533 			sparc(sun4c)	(tsutsui)
   1534 			sun2		(tsutsui)
   1535 			sun3		(tsutsui)
   1536 			sun3x		(tsutsui)
   1537 			xen		(yamt)
   1538 
   1539 		compile-tested:
   1540 			acorn26
   1541 			acorn32
   1542 			algor
   1543 			amiga
   1544 			arc
   1545 			atari
   1546 			bebox
   1547 			cats
   1548 			cesfic
   1549 			dreamcast
   1550 			evbarm
   1551 			evbmips
   1552 			evbppc(marvell)
   1553 			evbppc(ibm4xx)
   1554 			evbsh3
   1555 			hp700
   1556 			hpcmips
   1557 			hpcsh
   1558 			ia64
   1559 			ibmnws
   1560 			iyonix
   1561 			landisk
   1562 			luna68k
   1563 			mac68k
   1564 			mmeye
   1565 			mvme68k
   1566 			mvmeppc
   1567 			mipsco
   1568 			netwinder
   1569 			newsmips
   1570 			next68k
   1571 			ofppc
   1572 			pc532
   1573 			pmax
   1574 			pmppc
   1575 			prep
   1576 			sandpoint
   1577 			sbmips
   1578 			shark
   1579 			sparc
   1580 			sparc64
   1581 			vax
   1582 			x68k
   1583 			zaurus
   1584 
   1585 		not tested:
   1586 			pdp10 (i don't know how to build)
   1587 			sh5 (not buildable with an unrelated problem.)
   1588 
   1589     compile  CAYMAN64/netbsd32_sa.o
   1590     cc1: warnings being treated as errors
   1591     /exports/nbsd/src/sys/compat/netbsd32/netbsd32_sa.c: In function 'netbsd32_sa_ucsp':
   1592     /exports/nbsd/src/sys/compat/netbsd32/netbsd32_sa.c:126: warning: implicit declaration of function '_UC_MACHINE32_SP'
   1593     --- netbsd32_sa.o ---
   1594     *** [netbsd32_sa.o] Error code 1
   1595     1 error
   1596 
   1597 		notyet:
   1598 			amigappc
   1599 			playstation2
   1600 
   1601 Branch:		yamt-vop
   1602 Description:	remove several VOPs
   1603 Status:		Terminated; merged to -current
   1604 Start Date:	Wed Oct 19 2005
   1605 End Date:	Wed Nov  2 2005
   1606 Base Tag:	yamt-vop-base3
   1607 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1608 Scope:		src/sys
   1609 Notes:		http://mail-index.NetBSD.org/tech-kern/2005/09/27/0000.html
   1610 
   1611 Branch:		yamt-x86pmap
   1612 Description:	merge i386 and amd64 pmap
   1613 Status:		Terminated; merged to -current
   1614 Start Date:	Mon Sep 24 2007
   1615 End Date:	Fri Oct 19 2007
   1616 Base Tag:	yamt-x86pmap-base4
   1617 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1618 Scope:		src/sys  (src/common is tagged but not branched)
   1619 Notes:		
   1620 
   1621 Branch:		gdamore-uart
   1622 Description:	Add register table support to com driver.
   1623 Status:		Active
   1624 Start Date:	14 June 2006
   1625 End Date:	13 July 2006
   1626 Base Tag:	gdamore-uart-base
   1627 Maintainer:	Garrett D'Amore <gdamore (a] NetBSD.org>
   1628 Scope:		kernel
   1629 Notes:		Results in consolidation of Alchemy (mips/dev/alchemy/aucom.c)
   1630 		com support, and also removes a nasty hack from Atheros com.
   1631 
   1632 ########################################################################
   1633 # Other:
   1634 ########################################################################
   1635 
   1636 Branch:		magnum
   1637 Description:	?
   1638 Status:		?
   1639 Start Date:
   1640 End Date:
   1641 Base Tag:	magnum-base
   1642 Maintainer:	?
   1643 Scope:		kernel
   1644 Notes:
   1645 
   1646