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BRANCHES revision 1.223
      1 #	$NetBSD: BRANCHES,v 1.223 2007/12/04 15:18:01 ad 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 Febuary 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 initializtion, 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 <chrisNetBSD.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:		gmcgarry_ctxsw
    270 Description:	Separate scheduler from context-switch code
    271 Status:		Dormant
    272 Start Date:	18 December 2002
    273 End Date:
    274 Base Tag:	gmcgarry_ctxsw_base
    275 Maintainer:	Gregory McGarry <gmcgarry (a] NetBSD.org>
    276 Scope:		kernel
    277 Notes:		Removing knowledge of the schedular and its run queues
    278 		from the machine-dependent context switch code is the
    279 		first step in cleaning up the scheduler.  It is necessary
    280 		for the newlock branch, making the scheduler SMP friendly,
    281 		adding real-time scheduler extensions, and reducing the
    282 		number of code paths for LWP and proc switching.
    283 
    284 Branch:		gmcgarry_ucred
    285 Description:	Integrate and encapsulate user credentials
    286 Status:		Dormant
    287 Start Date:	18 December 2002
    288 End Date:
    289 Base Tag:	gmcgarry_ucred_base
    290 Maintainer:	Gregory McGarry <gmcgarry (a] NetBSD.org>
    291 Scope:		kernel
    292 Notes:		merge pcred and ucred and poolify
    293 
    294 Branch:		hpcarm-cleanup
    295 Description:	Fix build problems for hpcarm
    296 Status:		Active
    297 Start Date:	31 July 2007
    298 End Date:
    299 Base Tag:	hpcarm-cleanup-base
    300 Maintainer:	Robert Swindells <rjs (a] NetBSD.org>
    301 Scope:		kernel
    302 Notes:		Modify SA11x0 interrupt code to match PXA2x0 equivalent.
    303 
    304 Branch:		itohy-usb1
    305 Description:	USB stack overhaul, mostly DMA related
    306 Status:		Active
    307 Start Date:	22 May 2007
    308 End Date:
    309 Base Tag:	itohy-usb1-base
    310 Maintainer:	ITOH Yasufumi <itohy (a] NetBSD.org>
    311 Scope:		kernel
    312 Notes:		To check out the kernel source tree,
    313 		1. check out checkout script
    314 			cvs checkout -ritohy-usb1 src/sys/dev/usb/filelist
    315 		2. update files in the branch
    316 			sh -e src/sys/dev/usb/filelist
    317 
    318 Branch:		jmcneill-pm
    319 Description:	Power management framework overhaul, ACPI improvements
    320 Status:		Active
    321 Start Date:	3 Aug 2007
    322 End Date:	
    323 Base Tag:	jmcneill-pm-base
    324 Scope:		kernel
    325 Notes:		
    326 
    327 Branch:		kame
    328 Description:	KAME Project
    329 Status:		Dormant
    330 Start Date:	28 Jun 1999
    331 End Date:
    332 Base Tag:
    333 Maintainer:	Jun-ichiro itojun Hagino <itojun (a] NetBSD.org>
    334 Scope:		kernel
    335 Notes:		http://www.kame.net
    336 		Used for "reference" purposes for early part of KAME
    337 		integration effort.  The branch is not actively used, as I
    338 		(itojun) use patch(1) and diff(1) for the KAME syncs.
    339 
    340 Branch:		kent-audio2
    341 Description:	In-kernel audio mixer
    342 Status:		Active
    343 Start Date:	Sun Jan 16 2005
    344 End Date:	
    345 Base Tag:	kent-audio2-base
    346 Maintainer:	TAMURA Kent <kent (a] NetBSD.org>
    347 Scope:		kernel (audio device drivers)
    348 Notes:		http://mail-index.netbsd.org/tech-kern/2004/12/03/0007.html
    349 		Please consult with the maintainer before committing
    350 		to this branch.
    351 		This branch is not expected to be compilable yet.
    352 
    353 Branch:		matt-timespec
    354 Description:	Convert the kernel to struct timespec as its primary time
    355 		storage mechanism.
    356 Status:		Inactive
    357 Start Date:	2005-02-19
    358 End Date:
    359 Base Tag:	
    360 Maintainer:	Matt Thomas <matt (a] NetBSD.org>
    361 Scope:		kernel
    362 Notes:	
    363 
    364 Branch:		matt-mips64
    365 Description:	Rototill the mips code to support LP64 mips and N32/N64 ABIs
    366 Status:		Active
    367 Start Date:	2007-07-17
    368 End Date:
    369 Base Tag:	matt-mips64-base
    370 Maintainer:	Matt Thomas <matt (a] NetBSD.org>
    371 Scope:		kernel & userland
    372 Notes:	
    373 
    374 Branch:		matt-armv6
    375 Description:	Rototill the arm code to support features present in the
    376 		v6 of the ARM Architecure.  Additionally, clean up things
    377 		along the way to use common practices.
    378 Status:		Active
    379 Start Date:	2007-08-27
    380 End Date:
    381 Base Tag:	matt-armv6-base
    382 Maintainer:	Matt Thomas <matt (a] NetBSD.org>
    383 Scope:		kernel & userland
    384 Notes:	
    385 
    386 Branch:	  	pkgviews
    387 Description:  	package views, enabling multiple conflicting packages to co-exist
    388 Status:		Active
    389 Start Date:	22 July 2002
    390 End Date:
    391 Base Tag:	pkgviews
    392 Maintainer:	Alistair Crooks <agc (a] NetBSD.org>
    393 Scope:		pkgsrc, basesrc/usr.sbin/pkg_install
    394 Notes:		A more flexible infrastructure for third-party packages by
    395 		allowing multiple conflicting packages and versions to co-exist
    396 		within the same tree
    397 
    398 Branch:		rpaulo-netinet-merge-pcb
    399 Description:	merge in6pcb with inpcb
    400 Status:		Dormant
    401 Start Date:	Wed Feb 01 2006
    402 End Date:	
    403 Base Tag:	rpaulo-netinet-merge-pcb-base
    404 Maintainer:	Rui Paulo <rpaulo (a] NetBSD.org>
    405 Scope:		src/sys
    406 Notes:		No longer active due to the lack of time. If you plan to
    407 		continue this branch, sys/netinet/in_pcb.h already contains
    408 		the proposed structure layout (which was roughly discussed
    409 		in the tech-net mailing list).
    410 		I also defined INP_*() macros to mimicate FreeBSD's inpcb
    411 		locking style, but currently they do nothing and are not
    412 		yet called at the correct places (needs discussion about
    413 		kernel fine-grained locking).
    414 		To continue this branch, one needs to read all the relevant
    415 		inpcb/in6pcb source files and change the function names,
    416 		structure names, structure fileds according to the new
    417 		layout (in6pcb is gone).
    418 		Don't try to build a kernel from this branch because it won't
    419 		work. The missing pieces required to do a complete build
    420 		were not committed because they were incomplete and generated
    421 		panics.
    422 		You shouldn't need to worry about KAME syncs because
    423 		they did most of them by now.
    424 		After the work is done, you are required to test the branch
    425 		(before the merge to -current) with an interop IPv6 test.
    426 		More info at: http://www.tahi.org/
    427 
    428 Branch:		rtr-xorg-branch
    429 Description:	xorg & static build alterations to src/x11
    430 Status:		Active
    431 Start Date:	Nov 15 2004
    432 End Date:	
    433 Base tag:	rtr-xorg-branch-base
    434 Maintainer:	Tyler R. Retzlaff <rtr (a] NetBSD.org>
    435 Scope:		x11
    436 		distrib/sets/lists
    437 		share/mk/bsd.x11.mk
    438 		share/mk/bsd.own.mk
    439 		etc/mtree/NetBSD.dist
    440 Notes:		Requires parts of xsrc/xfree (HEAD)
    441 		xsrc/local, xsrc/xfree/xc/programs/Xserver/hw/netbsd
    442 		Requires xorg (XORG-6_8_1)
    443 
    444 Branch:  	wrstuden-fixsa
    445 Description:	Fix a number of issues present with Scheduler Activations.
    446 Status: 	Active
    447 Start Date:	15 May 2007
    448 End Date:
    449 Base Tag:	wrstuden-fixsa-base
    450 Maintainer:	Bill Stouder-Studenmund <wrstuden (a] NetBSD.org>
    451 Scope:		src, though all the interesting stuff is in the kernel
    452 		or lib/libpthread or maybe gdb.
    453 Notes:		This branch is based off of the netbsd-4 branch!
    454 		This branch is intended to stage improvements for the
    455 		Scheduler Activations system for NetBSD 4. Improvements
    456 		include not allocating memory while preparing to tsleep(),
    457 		reducing inappropriate upcall delivery (hopefully also
    458 		eliminating the need to mlock stacks), and being
    459 		able to pthread_kill() running threads.
    460 
    461 Branch:		vmlocking
    462 Description:	Make VM and file system framework MP safe
    463 Status:		Terminated
    464 Start Date:	13 March 2007
    465 End Date:	4 December 2007
    466 Base Tag:	vmlocking-base
    467 Maintainer:	Andrew Doran <ad (a] NetBSD.org>
    468 Scope:		kernel
    469 Notes:		Superseded by vmlocking2 branch.
    470 
    471 Branch:		vmlocking2
    472 Description:	Make VM and file system framework MP safe
    473 Status:		Active
    474 Start Date:	4 Decenber 2007
    475 End Date:
    476 Base Tag:	vmlocking2-base1
    477 Maintainer:	Andrew Doran <ad (a] NetBSD.org>
    478 Scope:		kernel
    479 Notes:		Goals:
    480 
    481 		- Make VM system / trap handling MP safe.
    482 		- Replace simplelocks with mutexes.
    483 		- Make file system framework MP safe.
    484 
    485 		Status by architecture:
    486 
    487 		  alpha		partial: need pmap/trap locking changes
    488 		  i386		done
    489 		  amd64		done
    490 		  mips		done
    491 		  sparc			
    492 		  sparc64		
    493 		  arm			
    494 		  powerpc	partial: need pmap/trap locking changes
    495 		  hppa		done
    496 		  sh3		done
    497 		  vax		partial: need pmap/trap locking changes
    498 		  m68k		
    499 		  xen		partial
    500 
    501 		Remaining MI work to do:
    502 
    503 		- Document locking around fields in struct mount.
    504 
    505 		- Check aliased vnode handling. There may be problems.
    506 
    507 		- Check layered file systems, LFS.
    508 
    509 		Remaining problems:
    510 
    511 		- tmpfs_rmdir occasionally leaks tmpfs_nodes.
    512 
    513 		- UVM_FLAG_TRYLOCK is not sufficient in uvm_km.c because
    514 		  allocations will fail too often. It's needed for !kmem_map
    515 		  because sometimes allocations are made by threads that
    516 		  hold the map locked, which could cause other threads to
    517 		  wait long term even if they are trying to make a NOWAIT
    518 		  allocation.
    519 
    520 		- ext2fs dup alloc.
    521 
    522 		- Unmount erroneously reports busy sometimes. Why?
    523 
    524 		- usl_detachtimeout warning occasionally.
    525 
    526 Branch:		yamt-lazymbuf
    527 Description:	implement and evaluate lazy mapping of mbuf external data pages
    528 		also, change the way to share mbuf external storage.
    529 		it's intended as the first step of larger changes.
    530 			1. support operations (esp. bus_dma load) on
    531 			   unmapped mbuf.
    532 			2. unify mbuf and buf.
    533 			   (or, at least some parts of them)
    534 			3. then it should be trivial to implement
    535 			   i/o coalescing, etc.
    536 Status:		Active
    537 Start Date:	Wed Jul  6 2005
    538 End Date:	
    539 Base Tag:	yamt-lazymbuf-base7
    540 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
    541 Scope:		src/sys  (src/common is tagged but not branched)
    542 Notes:		
    543 		i386		DONE
    544 		amd64		DONE
    545 		other ports should work as the trunk does.
    546 		(conditionalized by __HAVE_LAZY_MBUF macro)
    547 
    548 Branch:		reinoud-bufcleanup
    549 Description:	implement and evaluate struct buf usage cleanup strategies.
    550 		Ideas currently in mind (preference for b):
    551 		a)
    552 			1. use of bio_ops per buffer.
    553 			2. allow chaining/overloading of functions in bio_ops
    554 			   and provide some private context.
    555 			3. extend the bio_ops with commenly used functionality
    556 			   like pending action counting, custom context passing,
    557 			   last minute processing of buffer data, buffer cache
    558 			   etc.
    559 			4. investigate the use of the kcont()
    560 			   continuation-passing framework for async io
    561 			   completion notification for bufs
    562 			...
    563 		b)
    564 			1. all sequencing use of B_CALL replaced by
    565 			   device-threads, if possible generic code around BUFQ
    566 			2. possibly use kcont() for async IO finished signalling
    567 			3. counter of pending and queued actions requestable
    568 			   by IOCTL interface?
    569 			4. implement `last minute buffer fixup' calls and maybe
    570 			   even finished I/O calls as vnode operations
    571 			...
    572 Status:		Active
    573 Start Date:	Thu Mar 15 2007
    574 End Date:
    575 Base Tag:	reinoud-bufcleanup-base
    576 Maintainer:	Reinoud Zandijk <reinoud (a] NetBSD.org>
    577 Scope:		src/sys and src/common
    578 Notes:		Used as expiriment sandbox and if successful hopefully one day
    579 		to be intergrated.
    580 
    581 Branch:		thorpej-atomic
    582 Description:	Implementation of an atomic memory operations API modeled
    583 		after the one in Solaris 10.
    584 Status:		Active
    585 Start Date:	Apr 11 2007
    586 End Date:
    587 Base tag:	thorpej-atomic-base
    588 Maintainer:	Jason Thorpe <thorpej (a] netbsd.org>
    589 Scope:		src/common
    590 		src/sys
    591 Notes:		Base atomic primitives need to be implemented for
    592 		all of the supported architectures:
    593 
    594 		alpha		DONE
    595 		arm		DONE
    596 		hppa
    597 		i386		DONE
    598 		ia64
    599 		m68k		DONE (except for 68010)
    600 		mips
    601 		ns32k
    602 		powerpc		DONE except for membar_*()
    603 		powerpc64	DONE except for membar_*()
    604 		sh3
    605 		sparc		DONE except for membar_*()
    606 		sparc64		DONE except for membar_*()
    607 		vax
    608 		x86_64		DONE
    609 
    610 		Tested:
    611 
    612 		alpha		NO
    613 		arm		NO
    614 		hppa		NO
    615 		i386		NO
    616 		ia64		NO
    617 		m68k		NO
    618 		mips		NO
    619 		ns32k		NO
    620 		powerpc		NO
    621 		powerpc64	NO
    622 		sh3		NO
    623 		sparc		NO
    624 		sparc64		NO
    625 		vax		NO
    626 		x86_64		NO
    627 
    628 		TODO:
    629 
    630 		all		- Need to replace mb_*() with membar_*().
    631 
    632 				- Audit MUTEX_CAS() and RWLOCK_CAS() uses
    633 				  to see of membar_enter() is required here.
    634 
    635 				- Talk to ad@ -- figure out of non-atomic
    636 				  mutex / rwlock release is actually safe.
    637 
    638 		arm		- Consider using a RAS technique like
    639 				  MIPS uses for _lock_cas() and the mutex
    640 				  stubs.  Possibly do more than one atomic
    641 				  op as a RAS.  Possibly implement mutex
    642 				  stubs using the technique.
    643 
    644 		m68k		- Need to do 68010 support.
    645 		
    646 		i386		- Need to change when x86_patch() is called
    647 				  so we can test ncpus.
    648 
    649 		powerpc		- Figure out if we need barriers in the
    650 				  atomic ops themselves (hopefully not!)
    651 
    652 		x86_64		- Need to change when x86_patch() is called
    653 				  so we can test ncpus.
    654 
    655 ########################################################################
    656 # Individual developers' branches (Terminated):
    657 ########################################################################
    658 
    659 Branch:		bouyer-scsipi
    660 Description:	Integration of atapi support
    661 Status:		Terminated
    662 Start Date:
    663 End Date:
    664 Base Tag:
    665 Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>
    666 Scope:		kernel
    667 Notes:		Superseded by thorpej_scsipi
    668 
    669 Branch:		bouyer-xen2
    670 Description:	update xen port to xen 2.0, with support for domain0 operations
    671 Status:		Terminated
    672 Start Date:	Dec 13 2004
    673 End Date:	Mar 10 2005
    674 Base Tag:	netbsd-2-base
    675 Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>
    676 Scope:		src/sys/arch/xen
    677 Notes:
    678 
    679 Branch:		bouyer-xenamd64
    680 Description:	add amd64 support to Xen and rework some parts to share more code between Xen and others
    681 Status:		Terminated
    682 Start Date:	18 Oct 2007
    683 End Date:	22 Nov 2007
    684 Base Tag:	bouyer-xenamd64-base
    685 Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>
    686 Scope:		kernel
    687 Notes:		
    688 
    689 Branch: 	chap-midi
    690 Description:	Renovation of MIDI support
    691 Status: 	Terminated; merged to -current
    692 Start Date:	19 May 2006
    693 End Date:	30 Jun 2006
    694 Base Tag:	chap-midi-base
    695 Maintainer:	Chapman Flack <chap (a] NetBSD.org>
    696 Scope:		sys, share/man, usr.bin
    697 Notes:
    698 
    699 Branch:		chs-ubc
    700 Description:	Unified Buffer Cache
    701 Status:		Terminated
    702 Start Date:
    703 End Date:
    704 Base Tag:	chs-ubc-base
    705 Maintainer:	Chuck Silvers <chs (a] NetBSD.org>
    706 Scope:		kernel
    707 Notes:
    708 
    709 Branch:		chs-ubc2
    710 Description:	 Unified Buffer Cache
    711 Status:		Terminated; merged to -current
    712 Start Date:
    713 End Date:
    714 Base Tag:	chs-ubc2-base, chs-ubc2-newbase
    715 Maintainer:	Chuck Silvers <chs (a] NetBSD.org>
    716 Scope:		kernel
    717 Notes:
    718 
    719 Branch:		cjs-build-against-obj-dir
    720 Description:	?
    721 Status:		?
    722 Start Date:
    723 End Date:
    724 Base Tag:
    725 Maintainer:	Curt Sampson <cjs (a] NetBSD.org>
    726 Scope:		Entire tree.
    727 Notes:
    728 
    729 Branch:		eeh-paddr_t
    730 Description:	use separate types for virtual vs. physical addresses
    731 Status:		Terminated; merged to -current
    732 Start Date:
    733 End Date:
    734 Base Tag:	eeh-paddr_t-base
    735 Maintainer:	Eduardo Horvath <eeh (a] NetBSD.org>
    736 Scope:		kernel
    737 Notes:		This is needed to support 32-bit kernels on sparc64.
    738 
    739 Branch:		elad-kernelauth
    740 Description:	Native NetBSD implementation of Apple's kernel authorization
    741 		based on TN2127. This is a "clean-room" implementation to
    742 		avoid any licensing issues.
    743 Status:		Terminated; merged to -current
    744 Start Date:	Tue Mar	 7 2006
    745 End Date:	Mon May 15 2006
    746 Base Tag:	elad-kernelauth-base
    747 Maintainer:	Elad Efrat <elad (a] NetBSD.org>
    748 Scope:		src/sys, src/share/man/man9/Makefile,
    749 		src/share/man/man9/kauth.h, src/distrib/sets/lists/comp/mi
    750 Notes:
    751 
    752 Branch:		fvdl-softdep
    753 Description:	FFS soft dependencies
    754 Status:		Terminated; merged to -current
    755 Start Date:
    756 End Date:
    757 Base Tag:	fvdl-softdep-base
    758 Maintainer:	Frank van der Linden <fvdl (a] NetBSD.org>
    759 Scope:		kernel
    760 Notes:
    761 
    762 Branch:		gehenna-devsw
    763 Description:	auto-generation of devsw table
    764 Status:		Terminated
    765 Start Date:	16 May 2002
    766 End Date:	6 Sep 2002
    767 Base Tag:	gehenna-devsw-base
    768 Maintainer:	MAEKAWA Masahide <gehenna (a] NetBSD.org>
    769 Scope:		syssrc
    770 Notes:		The goal is to get rid of the existing device switch tables in
    771 		port-dependent conf.c and to generate them dynamically by
    772 		config(8).
    773 
    774 Branch:		is-newarp
    775 Description:	ARP for non-Ethernet
    776 Status:		Terminated; merged before NetBSD 1.3
    777 Start Date:	1996/10/13
    778 End Date:	1997/03/15
    779 Base Tag:	is-newarp-base
    780 Maintainer:	Ignatios Souvatzis <is (a] NetBSD.org>
    781 Scope:		kernel
    782 Notes:
    783 
    784 Branch:		kenh-if-detach
    785 Description:	Interface detach support.
    786 Status:		?
    787 Start Date:
    788 End Date:
    789 Base Tag:	kenh-if-detach-base
    790 Maintainer:	Ken Hornstein <kenh (a] NetBSD.org>
    791 Scope:		kernel
    792 Notes:
    793 
    794 Branch:		kent-audio1
    795 Description:	Audio converter pipeline
    796 Status:		Terminated; merged to -current
    797 Start Date:	Tue Dec  7 2004
    798 End Date:	Tue Jan 11 2005
    799 Base Tag:	kent-audio1-base
    800 Maintainer:	TAMURA Kent <kent (a] NetBSD.org>
    801 Scope:		kernel (audio device drivers)
    802 Notes:		http://mail-index.netbsd.org/tech-kern/2004/12/03/0007.html
    803 		Please consult with the maintainer before committing
    804 		to this branch.
    805 
    806 Branch:		kqueue
    807 Description:	kqueue kernel event notification mechanism (from FreeBSD)
    808 Status:		Terminated; merged to -current
    809 Start Date:	Tue Jul 10 23:08:38 EST 2001
    810 End Date:	Tue Oct 24 09:14:14 GMT 2002
    811 Base Tag:	kqueue-base
    812 Maintainer:	Jaromir Dolecek <jdolecek (a] NetBSD.org>
    813 Scope:		kernel, libc/sys, share/man/man9, usr.bin/fstat
    814 Notes:		Integration of FreeBSD's kqueue(2) mechanism, with various
    815 		local internal changes to better suit NetBSD, and
    816 		enhancements such as looking up filters by name or
    817 		number, and dynamic registration of "user" filters.
    818 		The work is complete as is, but is awaiting more
    819 		feedback from various kernel gurus before going mainline.
    820 
    821 Branch:		ktrace-lwp
    822 Description:	ktrace support for lwp ids.
    823 Status:		Terminated; merged to -current
    824 Start Date:	Wed Jul  2 15:27:30 UTC 2003
    825 End Date:	Sun Dec 11 12:25:29 UTC 2005
    826 Base Tag:	ktrace-lwp-base
    827 Maintainer:	Darren Reed <darrenr (a] NetBSD.org>
    828 Scope:		sys
    829 Notes:		
    830 
    831 Branch:		marc-pcmcia
    832 Description:	PCMCIA support
    833 Status:		Terminated; merged to -current
    834 Start Date:
    835 End Date:
    836 Base Tag:	marc-pcmcia-base, marc-pcmcia-bp
    837 Maintainer:	Marc Horowitz <marc (a] NetBSD.org>
    838 Scope:		kernel
    839 Notes:
    840 
    841 Branch:		minoura_x68k_bus_h
    842 Description:	bus_space(9) and bus_dma(9) implementation for x68k
    843 Status:		Terminated; merged to -current
    844 Start Date:	23 Dec 1998
    845 End Date:	16 Mar 1999
    846 Base Tag:	minoura_x68k_bus_h-base
    847 Maintainer:	Minoura Makoto <minoura (a] NetBSD.org>
    848 Scope:		sys/arch/x68k
    849 Notes:
    850 
    851 Branch:		minoura-xpg4dl
    852 Description:	Citrus Project locale subsystem
    853 Status:		Terminated; (partly) merged to -current
    854 Start Date:	28 March 2000
    855 End Date:
    856 Base Tag:	minoura-xpg4dl-base
    857 Maintainer:	Minoura Makoto <minoura (a] NetBSD.org>
    858 Scope:		basesrc, syssrc, sharesrc
    859 Notes:		Citrus Project is developing dynamically-loadable, codeset-
    860 		independent locale subsystem.  Part of the implementation
    861 		(LC_CTYPE) called XPG4DL is now integrated to -current.
    862 
    863 Branch:		mjf-devfs
    864 Description:	device filesystem supporting dynamic device nodes
    865 Status:		Active
    866 Start Date:	12 November 2007
    867 End Date:
    868 Base Tag:	mjf-devfs-base
    869 Maintainer:	Matt Fleming <mjf (a] NetBSD.org>
    870 Scope:		kernel and userland
    871 Notes:		This branch will move away from the static device nodes that
    872 		are created with MAKEDEV scripts and allow nodes to be created
    873 		and removed dynamically as devices are attached and detached
    874 		from the machine.
    875 
    876 Branch:		mjf-ufs-trans
    877 Description:	filesystem transactions for ufs
    878 Status:		Active
    879 Start Date:	12 March 2007
    880 End Date:
    881 Base Tag:	mjf-ufs-trans-base
    882 Maintainer:	Matt Fleming <mjf (a] NetBSD.org>
    883 Scope:		kernel
    884 Notes:
    885 
    886 Branch:		mrg-vm-swap
    887 Description:	dynamic swap allocation, swap-to-files support
    888 Status:		Terminated; abondoned for mrg-vm-swap2
    889 Start Date:	12 February 1997
    890 End Date:	15 March 1997
    891 Base Tag:	[none]
    892 Maintainer:	Matthew R. Green <mrg (a] NetBSD.org>
    893 Scope:		kernel
    894 Notes:
    895 
    896 Branch:		mrg-vm-swap2
    897 Description:	dynamic swap allocation, swap-to-files support
    898 Status:		Terminated; merged to -current
    899 Start Date:	4 May 1997
    900 End Date:	12 June 1997
    901 Base Tag:	mrg-vm-swap2-base
    902 Maintainer:	Matthew R. Green <mrg (a] NetBSD.org>
    903 Scope:		kernel
    904 Notes:
    905 
    906 Branch:		nathanw_sa
    907 Description:	Scheduler activations
    908 Status:		Terminated; merged to -current
    909 Start Date:	5 March 2001
    910 End Date:	18 January 2003
    911 Base Tag:	nathanw_sa_base
    912 Maintainer:	Nathan Williams <nathanw (a] NetBSD.org>
    913 Scope:		kernel, libc, libkvm, libpthread, libpthread_dbg, include, 
    914 		bin/ps usr.bin/systat usr.bin/top usr.bin/w
    915 		gnu/dist/toolchain/gdb gnu/usr.bin/gdb
    916 Notes:		The idea of scheduler activations is described in the
    917 		classic paper by Anderson et al., in ACM Transactions
    918 		a on Computer Systems volume 10 issue 1 (1992),which
    919 		can be found at
    920 		http://www.acm.org/pubs/citations/journals/tocs/1992-10-1/p53-anderson/
    921 		Many ideas in the implementation are based on the
    922 		implementation of scheduler activations added to Mach
    923 		3.0 and described by Davis et al. in the University of
    924 		Washington CS tech report 92-08-93, which can be found
    925 		at
    926 		ftp://ftp.cs.washington.edu/tr/1992/08/UW-CSE-92-08-03.PS.Z
    927 
    928 		My USENIX paper on the subject can be found at
    929 		http://web.mit.edu/nathanw/www/usenix/
    930 
    931 		Please consult with the maintainer before committing
    932 		to this branch.
    933 		Other tags starting with nathanw_sa reserved for
    934 		branch management and are not guaranteed to be stable.
    935 
    936 		Trunk tagged with "nathanw_sa_before_merge" prior to
    937 		merging branch down to trunk.  Branch tagged with
    938 		"nathanw_sa_end" to indicate the ending revision of
    939 		the branch.
    940 
    941 Branch:		newlock
    942 Description:	New locking primitives, based on Solaris's
    943 Status:		Terminated
    944 Start Date:	March 9, 2002
    945 End Date:	Febuary 12, 2007
    946 Base Tag:	newlock-base
    947 Maintainer:	Jason R. Thorpe <thorpej (a] NetBSD.org>
    948 Scope:		Kernel
    949 Notes:		The goal is to replace the existing lockmgr() and
    950 		simple_lock() based locking mechanisms with the
    951 		primitives found in Solaris: mutexes and rwlocks.
    952 		Superseeded by the newlock2 branch.
    953 
    954 Branch:		newlock2
    955 Description:	New locking primitives, based on Solaris's
    956 Status:		Terminated
    957 Start Date:	September 9, 2006
    958 End Date:	Febuary 12, 2007
    959 Base Tag:	newlock2-base
    960 Maintainer:	Andrew Doran <ad (a] NetBSD.org>
    961 Scope:		Kernel
    962 Notes:		As per the newlock branch, however given the amount of time
    963 		the original branch has lain dormant, a new one has been
    964 		created.  Goals:
    965 		- Implement new locking primitives on most-used ports.
    966 		- Minor locking improvements.
    967 		- Remove spinlockmgr().
    968 
    969 Branch:		nick-csl-alignment
    970 Description:	Provide correctly aligned __cpu_simple_lock_t for hppa
    971 Status:		Terminated
    972 Start Date:	2007-07-18
    973 End Date:
    974 Base Tag:	nick-csl-alignment-base5
    975 Maintainer:	Nick Hudson <skrll (a] NetBSD.org>
    976 Scope:		sys, lib/libpthread, lib/libpthread_dbg
    977 Notes:	
    978 
    979 Branch:		perseant-lfsv2
    980 Description:	LFS incompatible on-disk data structure changes
    981 Status:		Terminated
    982 Start Date:	27 June 2001
    983 End Date:	16 July 2001
    984 Base Tag:	perseant-lfsv2-base
    985 Maintainer:	Konrad Schroder <perseant (a] NetBSD.org>
    986 Scope:		basesrc/{sbin/*lfs,libexec/lfs_cleanerd,usr.sbin/dumplfs}, syssrc/sys/ufs
    987 Notes:		This branch should be short-lived, I expect to merge as soon
    988 		as the data structures required for unremove are in and tested.
    989 
    990 Branch:		ppcoea-renovation
    991 Description:	General renovation and cleanup of all OEA PowerPC ports.
    992 Status:		Terminated; merged to -current
    993 Start Date:	30 April 2007
    994 End Date:	15 October 2007
    995 Base Tag:	ppcoea-renovation-base
    996 Maintainer:	Tim Rightnour <garbled (a] netbsd.org>
    997 Scope:		src/sys/arch
    998 Notes:		This branch is for a general cleanup of all OEA-based PowerPC
    999 		ports. OEA (Operating Environment Architecture) PowerPC refers
   1000 		to the 601, 603, 604, and similar chips.  Specifically, not the
   1001 		403/401 and other embedded chips. The general concept is to get
   1002 		them all compiling, and sharing as much code as possible.  All
   1003 		developers are welcome to commit to this branch.
   1004 
   1005 Branch:		thorpej-devvp
   1006 Description:	replace dev_t with struct vnode * in devsw entry points
   1007 Status:		Terminated
   1008 Start Date:	Sep 6 2001
   1009 End Date:	???
   1010 Base Tag:	thorpej-devvp-base
   1011 Maintainer:	Jason Thorpe <thorpej (a] NetBSD.org>
   1012 Scope:		syssrc
   1013 Notes:		Kernels built from this branch are not expected
   1014 		to function correctly at this time.
   1015 
   1016 		Ports known to compile on this branch:
   1017 			alpha
   1018 			i386
   1019 
   1020 Branch:		peter-altq
   1021 Description:	New ALTQ framework:
   1022 		- sync with KAME sources
   1023 		- share mtag/name mapping functions
   1024 		- separate altq + pf attachment
   1025 Status:		Terminated; merged to -current
   1026 Start Date:	March 16, 2006
   1027 End Date:	October 12, 2006
   1028 Base Tag:	peter-altq-base
   1029 Maintainer:	Peter Postma <peter (a] NetBSD.org>,
   1030 		Martin Husemann <martin (a] NetBSD.org>,
   1031 		Matthias Scheler <tron (a] NetBSD.org>
   1032 Scope:		dist/pf dist/ipf distrib/sets/lists sys usr.sbin/altq
   1033 Notes:		Only the first item in the description was finished
   1034 		in this branch.
   1035 
   1036 Branch:		sommerfeld_i386mp_1
   1037 Description:	Multiprocessor support for i386 using Intel MP BIOS.
   1038 Status:		Terminated; merged to -current
   1039 Start Date:	21 Feb 2000
   1040 End Date:	01 Oct 2002
   1041 Base Tag:	sommerfeld_i386mpbase_1
   1042 Maintainer:	Bill Sommerfeld <sommerfeld (a] NetBSD.org>
   1043 Scope:		sys/arch/i386
   1044 Notes:
   1045 		Code committed to the branch has booted to multiuser 
   1046 		on at least one system.
   1047 
   1048 		Not guaranteed to compile against mainline since -current
   1049 		may have changed incompatibly with the last branch update;
   1050 		use "cvs update -D" to roll-back the rest of the tree to match.
   1051 
   1052 		Please get explicit permission from the maintainer 
   1053 		before each commit, or your changes will be backed out.
   1054 		Other tags starting with sommerfeld_ are private to 
   1055 		the developer and are guaranteed to be unstable.
   1056 		Only the maintainer should move tags.
   1057 
   1058 		Note that this branch uses a DIFFERENT scheme for 
   1059 		synching with the mainline.  the maintainer uses some private
   1060 		scripts for keeping them in synch; if you make commits 
   1061 		to the branch to "resynchronize" things, you'll
   1062 		probably do it wrong; instead, ask the maintainer to
   1063 		resynchronize things.
   1064 
   1065 		See sys/arch/i386/TODO on the branch for a list of known
   1066 		issues with the branch.
   1067 
   1068 Branch:		thorpej-mips-cache
   1069 Description:	overhaul MIPS cache support code
   1070 Status:		Terminated; merged to -current
   1071 Start Date:	Oct 23 2001
   1072 End Date:	Nov 14 2001
   1073 Base Tag:	thorpej-mips-cache-base
   1074 Scope:		syssrc
   1075 Notes:		This branch needs more debugging, testing, and more
   1076 		ports need to be converted to the new world order.
   1077 
   1078 		The following processors have had cache ops
   1079 		written:
   1080 
   1081 			* R2000/R3000 (cache_r3k) -- light testing,
   1082 			  needs to be beat on a lot more to make
   1083 			  sure it's working.
   1084 
   1085 			* R4000/R4400 (cache_r4k) -- mhitch (a] NetBSD.org
   1086 			  tracked down a bug, which has been fixed.
   1087 
   1088 			  Confirmed working on R4000-with-L2.
   1089 
   1090 			  Confirmed working on R4400-no-L2 and
   1091 			  R4400-with-L2.
   1092 
   1093 			* R4600/R5000 (cache_r5k) -- shin (a] NetBSD.org
   1094 			  has committed fixes to this code.
   1095 
   1096 			  Confirmed working on R4600 v2 (SGI IP-22 with
   1097 			  no SysAD L2 cache).
   1098 
   1099 			  Confirmed working on RM5260 (Algorithmics P-5064).
   1100 
   1101 			* TX39 (cache_tx39) -- uch (a] NetBSD.org has
   1102 			  committed fixes to this code.  Awaiting
   1103 			  confirmation that it is working properly.
   1104 
   1105 			* R5900 (cache_r5900) -- uch (a] NetBSD.org has
   1106 			  written this code and tested it on a
   1107 			  PlayStation 2.
   1108 
   1109 		The following ports have been updated to compile (and
   1110 		use optimized-for-processor bus_dma routines).  Those
   1111 		that have been tested and work are marked with [WORKING].
   1112 
   1113 			* algor		[WORKING]
   1114 
   1115 			* arc		[WORKING]
   1116 
   1117 			* pmax		[WORKING]
   1118 
   1119 			* playstation2	[WORKING]
   1120 					Needs optimized bus_dmamap_sync().
   1121 
   1122 			* hpcmips	[need verification that this is working]
   1123 					Needs optimized bus_dmamap_sync().
   1124 
   1125 			* sgimips	[WORKING]
   1126 					Needs optimized bus_dmamap_sync().
   1127 
   1128 			* cobalt	[need testing]
   1129 
   1130 			* mipsco	[need testing]
   1131 
   1132 			* newsmips	[need testing]
   1133 
   1134 Branch:		thorpej_scsipi
   1135 Description:	SCSI/ATAPI midlayer rewrite.
   1136 Status:		Terminated; merged to -current
   1137 Start Date:
   1138 End Date:	Apr 25 2001
   1139 Base Tag:	thorpej_scsipi_base, thorpej_scsipi_nbase
   1140 Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>,
   1141 		Jason Thorpe <thorpej (a] NetBSD.org>
   1142 Scope:		syssrc
   1143 Notes:		When a change from -current is pulled up please move the
   1144 		thorpej_scsipi_base tag to the revision you're syncing with.
   1145 		thorpej_scsipi_nbase is private to maintainer (only
   1146 		used when syncing the whole branch with HEAD).
   1147 		Just before the merge, syssrc has been tagged with
   1148 		thorpej_scsipi_beforemerge
   1149 
   1150 Branch:		thorpej-signal
   1151 Description:	?
   1152 Status:		?
   1153 Start Date:
   1154 End Date:
   1155 Base Tag:	thorpej-signal-base
   1156 Maintainer:	Jason Thorpe <thorpej (a] NetBSD.org>
   1157 Scope:		kernel
   1158 Notes:
   1159 
   1160 Branch:		thorpej-setroot
   1161 Description:	?
   1162 Status:		Terminated; merged to -current
   1163 Start Date:
   1164 End Date:
   1165 Base Tag:
   1166 Maintainer:	Jason Thorpe <thorpej (a] NetBSD.org>
   1167 Scope:		kernel
   1168 Notes:
   1169 
   1170 Branch:		simonb-timecounters
   1171 Description:	Port FreeBSD timecounters to NetBSD
   1172 Status:		Terminated
   1173 Start Date:	Sat Feb 04 2006
   1174 End Date:	Wed Jun 07 2006
   1175 Base Tag:	simonb-timecounters-base
   1176 Maintainer:	Simon Burge <simonb (a] NetBSD.org>,
   1177 		Frank Kardel <kardel (a] NetBSD.org>
   1178 Scope:		sys, sbin/savecore, usr.bin/vmstat, usr.sbin/ntp
   1179 Notes:		early (partial conversion) commit to -current
   1180 		ok'ed by core@ on 20060605 for testing and further
   1181 		simplified conversion
   1182 
   1183 Branch:		wrstuden-devbsize
   1184 Description:	Modify buffer cache to deal with different devices having
   1185 		different block sizes. Also DEV_BSIZE would go away.
   1186 Status:		Terminated
   1187 Start Date:	Aug or Sept 1999
   1188 End Date:	1 Apr 2000
   1189 Base tag:	wrstuden-devbsize-base
   1190 Maintainer:	Bill Studenmund <wrstuden (a] NetBSD.org>
   1191 Scope:		kernel
   1192 Notes:		No longer active due to lack of time, and introduction
   1193 		of UBC. In terms of UBC, the primary cache for
   1194 		file data is the VM cache, which needs to operate
   1195 		in terms of VM pages. As no existing device has native
   1196 		pages the same size as our VM pages, there already is
   1197 		a mapping going on between the VM system and the
   1198 		underlying blocks. So it would be easier and cleaner
   1199 		to adjust that to deal w/ different block sizes.
   1200 		Also with UBC, all i/o is in terms of bytes at an offset
   1201 		with a certain length, so the exact block size isn't a big
   1202 		deal.
   1203 
   1204 		Any other wrstuden-devbsize tag may (and should) go away.
   1205 
   1206 Branch:		yamt-idlelwp
   1207 Description:	idle lwp, and some changes depending on it.
   1208 
   1209 		1. separate context switching and thread scheduling.
   1210 		   (cf. gmcgarry_ctxsw)
   1211 		2. implement idle lwp.
   1212 		3. clean up related MD/MI interfaces.
   1213 		4. make scheduler(s) modular.
   1214 
   1215 Status:		Terminated; merged to -current
   1216 Start Date:	Fri Feb 17 2007
   1217 End Date:	Thu May 17 2007
   1218 Base Tag:	yamt-idlelwp-base8
   1219 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1220 Scope:		src/sys  (src/common is tagged but not branched)
   1221 Notes:		
   1222 		Status of ports:
   1223 		  alpha			[ Done, UP tested, MP not tested ]
   1224 		  i386			[ Done, tested ]
   1225 		  amd64			[ Done, tested ]
   1226 		  mips			[ Done, both MIPS1 and MIPS3 tested]
   1227 		  sparc			[ Done, UP tested, MP might have
   1228 					  some problem after newlock2 merge ]
   1229 		  sparc64		[ Done, tested ]
   1230 		  arm			[ Done, SA1 tested. See PR 36548 ]
   1231 		  macppc/powerpc	[ Done, OEA tested ]
   1232 		  hppa			[ Done, tested ]
   1233 		  sh3			[ Done, tested ]
   1234 		  vax			[ Done, UP tested, MP untested ]
   1235 		  m68k			[ Done, tested on several ports ]
   1236 		  ns32k			[ broken ]
   1237 		  ia64			[ broken ]
   1238 		  pdp10			[ broken ]
   1239 
   1240 		How to adapt a port?
   1241 
   1242 		- unify cpu_switch, cpu_exit, cpu_switchto into
   1243 		  a single cpu_switchto.  see cpu_switchto.9.
   1244 
   1245 		- implement cpu_idle.  see cpu_idle.9.
   1246 
   1247 		- add a flag argument to cpu_need_resched.
   1248 		  handle RESCHED_IMMED flag, which means "cause a preemption
   1249 		  as soon as possible."  eg. in the case of MULTIPROCESSOR,
   1250 		  send an IPI to the target cpu.
   1251 
   1252 		- "curlwp == NULL" is not a valid check for idle state anymore.
   1253 		  use "(curlwp->l_flag & LW_IDLE) != 0" instead.  curlwp is
   1254 		  almost always non-NULL, with exceptions like early on boot.
   1255 
   1256 		- remove idle pcbs.
   1257 
   1258 		- (if MULTIPROCESSOR) tweak processor trampoline code.
   1259 
   1260 		- (if MULTIPROCESSOR) call mi_cpu_attach when attaching
   1261 		  secondary processors.
   1262 
   1263 		- (if schedhz!=0) call schedclock regardless of the value of
   1264 		  curlwp.
   1265 
   1266 		- of course, update MD users of scheduler/switching API.
   1267 
   1268 Branch:		yamt-km, yamt-km-doc
   1269 Description:	simplify/improve kernel memory management and bootstrap
   1270 Status:		Terminated; merged to -current
   1271 Start Date:	Tue Jan 25 2005
   1272 End Date:	Fri Apr  1 2005
   1273 Base Tag:	yamt-km-base{,2,3,4}, yamt-km-doc-base
   1274 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1275 Scope:		yamt-km: src/sys
   1276 		yamt-km-doc: src/share/man/man9/uvm.9
   1277 Notes:		http://mail-index.NetBSD.org/tech-kern/2004/12/25/0005.html
   1278 
   1279 		the followings are per-port status.
   1280 		(account names mean "tested by".)
   1281 
   1282 		works enough to go to multiuser:
   1283 			alpha, i386, xen (yamt@)
   1284 			pc532 (simonb@)
   1285 			alpha, i386, mac68k, macppc, pmax, shark,
   1286 			    sparc, sparc64, sun3, x68k (chs@)
   1287 			cobalt, dreamcast, hp300, news68k, newsmips,
   1288 			    sun3x (tsutsui@)
   1289 			amiga (mhitch@)
   1290 			cats, hp700 (skrll@)
   1291 			xen (bouyer@)
   1292 
   1293 		known to have the same problem as trunk:
   1294 			vax (chs@, stuck while running kvm_mkdb)
   1295 
   1296 		known to have a problem:
   1297 			luna68k (and, if any, other m68k ports which use TTR)
   1298 			needs to be revisited.
   1299 			-> for luna68k, although not tested,
   1300 			   Sysmap has been moved to avoid kva conflict with
   1301 			   I/O ranges.
   1302 
   1303 		buildable:
   1304 			src/sys/arch/acorn26/conf/GENERIC
   1305 			src/sys/arch/acorn32/conf/GENERIC
   1306 			src/sys/arch/algor/conf/P6032
   1307 			src/sys/arch/alpha/conf/GENERIC
   1308 			src/sys/arch/alpha/conf/GENERIC.MP
   1309 			src/sys/arch/amd64/conf/GENERIC
   1310 			src/sys/arch/amd64/conf/GENERIC.MP
   1311 			src/sys/arch/amiga/conf/GENERIC
   1312 			src/sys/arch/arc/conf/GENERIC
   1313 			src/sys/arch/atari/conf/MILAN-PCIIDE
   1314 			src/sys/arch/bebox/conf/GENERIC
   1315 			src/sys/arch/cats/conf/GENERIC
   1316 			src/sys/arch/cesfic/conf/GENERIC
   1317 			src/sys/arch/cobalt/conf/GENERIC
   1318 			src/sys/arch/dreamcast/conf/GENERIC
   1319 			src/sys/arch/evbarm/conf/TS7200
   1320 			src/sys/arch/evbppc/conf/WALNUT
   1321 			src/sys/arch/evbsh3/conf/COMPUTEXEVB
   1322 			src/sys/arch/evbsh5/conf/CAYMAN64
   1323 			src/sys/arch/hp300/conf/GENERIC
   1324 			src/sys/arch/hp700/conf/GENERIC
   1325 			src/sys/arch/hpcarm/conf/JORNADA728
   1326 			src/sys/arch/hpcmips/conf/GENERIC
   1327 			src/sys/arch/hpcsh/conf/GENERIC
   1328 			src/sys/arch/hpcsh/conf/HPW650PA
   1329 			src/sys/arch/i386/conf/GENERIC
   1330 			src/sys/arch/i386/conf/GENERIC.MP
   1331 			src/sys/arch/i386/conf/XEN0
   1332 			src/sys/arch/i386/conf/XENU
   1333 			src/sys/arch/ibmnws/conf/GENERIC
   1334 			src/sys/arch/iyonix/conf/GENERIC
   1335 			src/sys/arch/luna68k/conf/GENERIC
   1336 			src/sys/arch/mac68k/conf/GENERIC
   1337 			src/sys/arch/macppc/conf/GENERIC
   1338 			src/sys/arch/macppc/conf/GENERIC.MP
   1339 			src/sys/arch/mipsco/conf/GENERIC
   1340 			src/sys/arch/mmeye/conf/GENERIC
   1341 			src/sys/arch/mvme68k/conf/GENERIC
   1342 			src/sys/arch/netwinder/conf/GENERIC
   1343 			src/sys/arch/news68k/conf/GENERIC
   1344 			src/sys/arch/newsmips/conf/GENERIC
   1345 			src/sys/arch/next68k/conf/GENERIC
   1346 			src/sys/arch/ofppc/conf/GENERIC
   1347 			src/sys/arch/pc532/conf/GENERIC
   1348 			src/sys/arch/pmax/conf/GENERIC
   1349 			src/sys/arch/prep/conf/GENERIC
   1350 			src/sys/arch/sandpoint/conf/GENERIC
   1351 			src/sys/arch/sbmips/conf/GENERIC
   1352 			src/sys/arch/sgimips/conf/GENERIC32_IP3x
   1353 			src/sys/arch/shark/conf/GENERIC
   1354 			src/sys/arch/sparc/conf/GENERIC
   1355 			src/sys/arch/sparc/conf/GENERIC.MP
   1356 			src/sys/arch/sparc64/conf/GENERIC
   1357 			src/sys/arch/sparc64/conf/GENERIC.MP
   1358 			src/sys/arch/sun2/conf/GENERIC
   1359 			src/sys/arch/sun3/conf/GENERIC
   1360 			src/sys/arch/vax/conf/GENERIC
   1361 			src/sys/arch/vax/conf/GENERIC.MP
   1362 			src/sys/arch/x68k/conf/GENERIC
   1363 
   1364 			src/sys/arch/playstation2/conf/GENERIC
   1365 
   1366 Branch:		yamt-pdpolicy
   1367 Description:	play with page replacement policy
   1368 		- separate page replacement policy from the rest of kernel
   1369 		- implement alternative replacement policy
   1370 		- related read-ahead adjustment?
   1371 Status:		Terminated; merged to -current
   1372 Start Date:	Sun Mar  5 2006
   1373 End Date:	Sat Sep 16 2006
   1374 Base Tag:	yamt-pdpolicy-base9
   1375 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1376 Scope:		src/sys  (src/common is tagged but not branched)
   1377 Notes:		
   1378 
   1379 Branch:		yamt-readahead
   1380 Description:	play with file readahead
   1381 Status:		Terminated; merged to -current
   1382 Start Date:	Mon Nov 14 2005
   1383 End Date:	Wed Nov 30 2005
   1384 Base Tag:	yamt-readahead-base3
   1385 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1386 Scope:		src/sys
   1387 Notes:		
   1388 
   1389 Branch:		yamt-uio_vmspace
   1390 Description:	uio_lwp/uio_segflg -> uio_vmspace
   1391 Status:		Terminated; merged to -current
   1392 Start Date:	Mon Dec 31 2005
   1393 End Date:	Wed Mar  1 2006
   1394 Base Tag:	yamt-uio_vmspace-base5
   1395 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1396 Scope:		src/sys
   1397 Notes:		
   1398 
   1399 Branch:		yamt-splraiseipl
   1400 Description:	finish implementing splraiseipl (and makeiplcookie).
   1401 		http://mail-index.NetBSD.org/tech-kern/2006/07/01/0000.html
   1402 
   1403 		- completes workqueue(9) and netbt.
   1404 		- fix PR/33218.
   1405 
   1406 Status:		Terminated; merged to -current
   1407 Start Date:	Mon Sep 18 2006
   1408 End Date:	Fri Dec 22 2006
   1409 Base Tag:	yamt-splraiseipl-base5
   1410 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1411 Scope:		src/sys  (src/common is tagged but not branched)
   1412 Notes:		
   1413 		tested (by who):
   1414 			alpha		(yamt)
   1415 			alpha		(pavel)
   1416 			amd64		(reported privately)
   1417 			cobalt		(tsutsui)
   1418 			ews4800mips	(tsutsui)
   1419 			hp300		(tsutsui)
   1420 			hpcarm		(reported privately)
   1421 			i386		(yamt)
   1422 			macppc		(tsutsui)
   1423 			news68k		(tsutsui)
   1424 			sgimips(IP32)	(tsutsui)
   1425 			sparc(sun4c)	(tsutsui)
   1426 			sun2		(tsutsui)
   1427 			sun3		(tsutsui)
   1428 			sun3x		(tsutsui)
   1429 			xen		(yamt)
   1430 
   1431 		compile-tested:
   1432 			acorn26
   1433 			acorn32
   1434 			algor
   1435 			amiga
   1436 			arc
   1437 			atari
   1438 			bebox
   1439 			cats
   1440 			cesfic
   1441 			dreamcast
   1442 			evbarm
   1443 			evbmips
   1444 			evbppc(marvell)
   1445 			evbppc(ibm4xx)
   1446 			evbsh3
   1447 			hp700
   1448 			hpcmips
   1449 			hpcsh
   1450 			ia64
   1451 			ibmnws
   1452 			iyonix
   1453 			landisk
   1454 			luna68k
   1455 			mac68k
   1456 			mmeye
   1457 			mvme68k
   1458 			mvmeppc
   1459 			mipsco
   1460 			netwinder
   1461 			newsmips
   1462 			next68k
   1463 			ofppc
   1464 			pc532
   1465 			pmax
   1466 			pmppc
   1467 			prep
   1468 			sandpoint
   1469 			sbmips
   1470 			shark
   1471 			sparc
   1472 			sparc64
   1473 			vax
   1474 			x68k
   1475 			zaurus
   1476 
   1477 		not tested:
   1478 			pdp10 (i don't know how to build)
   1479 			sh5 (not buildable with an unrelated problem.)
   1480 
   1481     compile  CAYMAN64/netbsd32_sa.o
   1482     cc1: warnings being treated as errors
   1483     /exports/nbsd/src/sys/compat/netbsd32/netbsd32_sa.c: In function 'netbsd32_sa_ucsp':
   1484     /exports/nbsd/src/sys/compat/netbsd32/netbsd32_sa.c:126: warning: implicit declaration of function '_UC_MACHINE32_SP'
   1485     --- netbsd32_sa.o ---
   1486     *** [netbsd32_sa.o] Error code 1
   1487     1 error
   1488 
   1489 		notyet:
   1490 			amigappc
   1491 			playstation2
   1492 
   1493 Branch:		yamt-vop
   1494 Description:	remove several VOPs
   1495 Status:		Terminated; merged to -current
   1496 Start Date:	Wed Oct 19 2005
   1497 End Date:	Wed Nov  2 2005
   1498 Base Tag:	yamt-vop-base3
   1499 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1500 Scope:		src/sys
   1501 Notes:		http://mail-index.NetBSD.org/tech-kern/2005/09/27/0000.html
   1502 
   1503 Branch:		yamt-x86pmap
   1504 Description:	merge i386 and amd64 pmap
   1505 Status:		Terminated; merged to -current
   1506 Start Date:	Mon Sep 24 2007
   1507 End Date:	Fri Oct 19 2007
   1508 Base Tag:	yamt-x86pmap-base4
   1509 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1510 Scope:		src/sys  (src/common is tagged but not branched)
   1511 Notes:		
   1512 
   1513 Branch:		gdamore-uart
   1514 Description:	Add register table support to com driver.
   1515 Status:		Active
   1516 Start Date:	14 June 2006
   1517 End Date:	13 July 2006
   1518 Base Tag:	gdamore-uart-base
   1519 Maintainer:	Garrett D'Amore <gdamore (a] NetBSD.org>
   1520 Scope:		kernel
   1521 Notes:		Results in consolidation of Alchemy (mips/dev/alchemy/aucom.c)
   1522 		com support, and also removes a nasty hack from Atheros com.
   1523 
   1524 ########################################################################
   1525 # Other:
   1526 ########################################################################
   1527 
   1528 Branch:		magnum
   1529 Description:	?
   1530 Status:		?
   1531 Start Date:
   1532 End Date:
   1533 Base Tag:	magnum-base
   1534 Maintainer:	?
   1535 Scope:		kernel
   1536 Notes:
   1537 
   1538