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BRANCHES revision 1.227
      1 #	$NetBSD: BRANCHES,v 1.227 2007/12/10 13:27:09 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:		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 scheduler 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:		kame
    319 Description:	KAME Project
    320 Status:		Dormant
    321 Start Date:	28 Jun 1999
    322 End Date:
    323 Base Tag:
    324 Maintainer:	Jun-ichiro itojun Hagino <itojun (a] NetBSD.org>
    325 Scope:		kernel
    326 Notes:		http://www.kame.net
    327 		Used for "reference" purposes for early part of KAME
    328 		integration effort.  The branch is not actively used, as I
    329 		(itojun) use patch(1) and diff(1) for the KAME syncs.
    330 
    331 Branch:		kent-audio2
    332 Description:	In-kernel audio mixer
    333 Status:		Active
    334 Start Date:	Sun Jan 16 2005
    335 End Date:	
    336 Base Tag:	kent-audio2-base
    337 Maintainer:	TAMURA Kent <kent (a] NetBSD.org>
    338 Scope:		kernel (audio device drivers)
    339 Notes:		http://mail-index.netbsd.org/tech-kern/2004/12/03/0007.html
    340 		Please consult with the maintainer before committing
    341 		to this branch.
    342 		This branch is not expected to be compilable yet.
    343 
    344 Branch:		matt-timespec
    345 Description:	Convert the kernel to struct timespec as its primary time
    346 		storage mechanism.
    347 Status:		Inactive
    348 Start Date:	2005-02-19
    349 End Date:
    350 Base Tag:	
    351 Maintainer:	Matt Thomas <matt (a] NetBSD.org>
    352 Scope:		kernel
    353 Notes:	
    354 
    355 Branch:		matt-mips64
    356 Description:	Rototill the mips code to support LP64 mips and N32/N64 ABIs
    357 Status:		Active
    358 Start Date:	2007-07-17
    359 End Date:
    360 Base Tag:	matt-mips64-base
    361 Maintainer:	Matt Thomas <matt (a] NetBSD.org>
    362 Scope:		kernel & userland
    363 Notes:	
    364 
    365 Branch:		matt-armv6
    366 Description:	Rototill the arm code to support features present in the
    367 		v6 of the ARM Architecture.  Additionally, clean up things
    368 		along the way to use common practices.
    369 Status:		Active
    370 Start Date:	2007-08-27
    371 End Date:
    372 Base Tag:	matt-armv6-base
    373 Maintainer:	Matt Thomas <matt (a] NetBSD.org>
    374 Scope:		kernel & userland
    375 Notes:	
    376 
    377 Branch:		mjf-devfs
    378 Description:	device file system supporting dynamic device nodes
    379 Status:		Active
    380 Start Date:	12 November 2007
    381 End Date:
    382 Base Tag:	mjf-devfs-base
    383 Maintainer:	Matt Fleming <mjf (a] NetBSD.org>
    384 Scope:		kernel and userland
    385 Notes:		This branch will move away from the static device nodes that
    386 		are created with MAKEDEV scripts and allow nodes to be created
    387 		and removed dynamically as devices are attached and detached
    388 		from the machine.
    389 
    390 Branch:		mjf-ufs-trans
    391 Description:	file system transactions for ufs
    392 Status:		Active
    393 Start Date:	12 March 2007
    394 End Date:
    395 Base Tag:	mjf-ufs-trans-base
    396 Maintainer:	Matt Fleming <mjf (a] NetBSD.org>
    397 Scope:		kernel
    398 Notes:
    399 
    400 Branch:	  	pkgviews
    401 Description:  	package views, enabling multiple conflicting packages to co-exist
    402 Status:		Active
    403 Start Date:	22 July 2002
    404 End Date:
    405 Base Tag:	pkgviews
    406 Maintainer:	Alistair Crooks <agc (a] NetBSD.org>
    407 Scope:		pkgsrc, basesrc/usr.sbin/pkg_install
    408 Notes:		A more flexible infrastructure for third-party packages by
    409 		allowing multiple conflicting packages and versions to co-exist
    410 		within the same tree
    411 
    412 Branch:		rpaulo-netinet-merge-pcb
    413 Description:	merge in6pcb with inpcb
    414 Status:		Dormant
    415 Start Date:	Wed Feb 01 2006
    416 End Date:	
    417 Base Tag:	rpaulo-netinet-merge-pcb-base
    418 Maintainer:	Rui Paulo <rpaulo (a] NetBSD.org>
    419 Scope:		src/sys
    420 Notes:		No longer active due to the lack of time. If you plan to
    421 		continue this branch, sys/netinet/in_pcb.h already contains
    422 		the proposed structure layout (which was roughly discussed
    423 		in the tech-net mailing list).
    424 		I also defined INP_*() macros to mimicate FreeBSD's inpcb
    425 		locking style, but currently they do nothing and are not
    426 		yet called at the correct places (needs discussion about
    427 		kernel fine-grained locking).
    428 		To continue this branch, one needs to read all the relevant
    429 		inpcb/in6pcb source files and change the function names,
    430 		structure names, structure fields according to the new
    431 		layout (in6pcb is gone).
    432 		Don't try to build a kernel from this branch because it won't
    433 		work. The missing pieces required to do a complete build
    434 		were not committed because they were incomplete and generated
    435 		panics.
    436 		You shouldn't need to worry about KAME syncs because
    437 		they did most of them by now.
    438 		After the work is done, you are required to test the branch
    439 		(before the merge to -current) with an interop IPv6 test.
    440 		More info at: http://www.tahi.org/
    441 
    442 Branch:		rtr-xorg-branch
    443 Description:	xorg & static build alterations to src/x11
    444 Status:		Active
    445 Start Date:	Nov 15 2004
    446 End Date:	
    447 Base tag:	rtr-xorg-branch-base
    448 Maintainer:	Tyler R. Retzlaff <rtr (a] NetBSD.org>
    449 Scope:		x11
    450 		distrib/sets/lists
    451 		share/mk/bsd.x11.mk
    452 		share/mk/bsd.own.mk
    453 		etc/mtree/NetBSD.dist
    454 Notes:		Requires parts of xsrc/xfree (HEAD)
    455 		xsrc/local, xsrc/xfree/xc/programs/Xserver/hw/netbsd
    456 		Requires xorg (XORG-6_8_1)
    457 
    458 Branch:  	wrstuden-fixsa
    459 Description:	Fix a number of issues present with Scheduler Activations.
    460 Status: 	Active
    461 Start Date:	15 May 2007
    462 End Date:
    463 Base Tag:	wrstuden-fixsa-base
    464 Maintainer:	Bill Stouder-Studenmund <wrstuden (a] NetBSD.org>
    465 Scope:		src, though all the interesting stuff is in the kernel
    466 		or lib/libpthread or maybe gdb.
    467 Notes:		This branch is based off of the netbsd-4 branch!
    468 		This branch is intended to stage improvements for the
    469 		Scheduler Activations system for NetBSD 4. Improvements
    470 		include not allocating memory while preparing to tsleep(),
    471 		reducing inappropriate upcall delivery (hopefully also
    472 		eliminating the need to mlock stacks), and being
    473 		able to pthread_kill() running threads.
    474 
    475 Branch:		vmlocking
    476 Description:	Make VM and file system framework MP safe
    477 Status:		Terminated
    478 Start Date:	13 March 2007
    479 End Date:	4 December 2007
    480 Base Tag:	vmlocking-base
    481 Maintainer:	Andrew Doran <ad (a] NetBSD.org>
    482 Scope:		kernel
    483 Notes:		Superseded by vmlocking2 branch.
    484 
    485 Branch:		vmlocking2
    486 Description:	Make VM and file system framework MP safe
    487 Status:		Active
    488 Start Date:	4 December 2007
    489 End Date:
    490 Base Tag:	vmlocking2-base1
    491 Maintainer:	Andrew Doran <ad (a] NetBSD.org>
    492 Scope:		kernel
    493 Notes:		Goals:
    494 
    495 		- Make VM system / trap handling MP safe.
    496 		- Replace simplelocks with mutexes.
    497 		- Make file system framework MP safe.
    498 
    499 		Status by architecture:
    500 
    501 		  alpha		partial: need pmap/trap locking changes
    502 		  i386		done
    503 		  amd64		done
    504 		  mips		done
    505 		  sparc			
    506 		  sparc64		
    507 		  arm			
    508 		  powerpc	partial: need pmap/trap locking changes
    509 		  hppa		done
    510 		  sh3		done
    511 		  vax		partial: need pmap/trap locking changes
    512 		  m68k		
    513 		  xen		partial
    514 
    515 		Remaining MI work to do:
    516 
    517 		- Document locking around fields in struct mount.
    518 
    519 		- Check aliased vnode handling. There may be problems.
    520 
    521 		- Check layered file systems, LFS.
    522 
    523 		Remaining problems:
    524 
    525 		- tmpfs_rmdir occasionally leaks tmpfs_nodes.
    526 
    527 		- UVM_FLAG_TRYLOCK is not sufficient in uvm_km.c because
    528 		  allocations will fail too often. It's needed for !kmem_map
    529 		  because sometimes allocations are made by threads that
    530 		  hold the map locked, which could cause other threads to
    531 		  wait long term even if they are trying to make a NOWAIT
    532 		  allocation.
    533 
    534 		- ext2fs dup alloc.
    535 
    536 		- Unmount erroneously reports busy sometimes. Why?
    537 
    538 		- usl_detachtimeout warning occasionally.
    539 
    540 Branch:		yamt-kmem
    541 Description:	
    542 		- separate kernel va allocation from kernel fault handling.
    543 		- make kmem_alloc interrupt-safe.
    544 Status:		Active
    545 Start Date:	Sun Dec  9 2007
    546 End Date:	
    547 Base Tag:	yamt-kmem-base
    548 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
    549 Scope:		src/sys  (src/common is tagged but not branched)
    550 Notes:		
    551 
    552 Branch:		yamt-lazymbuf
    553 Description:	implement and evaluate lazy mapping of mbuf external data pages
    554 		also, change the way to share mbuf external storage.
    555 		it's intended as the first step of larger changes.
    556 			1. support operations (esp. bus_dma load) on
    557 			   unmapped mbuf.
    558 			2. unify mbuf and buf.
    559 			   (or, at least some parts of them)
    560 			3. then it should be trivial to implement
    561 			   i/o coalescing, etc.
    562 Status:		Active
    563 Start Date:	Wed Jul  6 2005
    564 End Date:	
    565 Base Tag:	yamt-lazymbuf-base7
    566 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
    567 Scope:		src/sys  (src/common is tagged but not branched)
    568 Notes:		
    569 		i386		DONE
    570 		amd64		DONE
    571 		other ports should work as the trunk does.
    572 		(conditionalized by __HAVE_LAZY_MBUF macro)
    573 
    574 Branch:		reinoud-bufcleanup
    575 Description:	implement and evaluate struct buf usage cleanup strategies.
    576 		Ideas currently in mind (preference for b):
    577 		a)
    578 			1. use of bio_ops per buffer.
    579 			2. allow chaining/overloading of functions in bio_ops
    580 			   and provide some private context.
    581 			3. extend the bio_ops with commonly used functionality
    582 			   like pending action counting, custom context passing,
    583 			   last minute processing of buffer data, buffer cache
    584 			   etc.
    585 			4. investigate the use of the kcont()
    586 			   continuation-passing framework for async io
    587 			   completion notification for bufs
    588 			...
    589 		b)
    590 			1. all sequencing use of B_CALL replaced by
    591 			   device-threads, if possible generic code around BUFQ
    592 			2. possibly use kcont() for async IO finished signaling
    593 			3. counter of pending and queued actions requestable
    594 			   by IOCTL interface?
    595 			4. implement `last minute buffer fixup' calls and maybe
    596 			   even finished I/O calls as vnode operations
    597 			...
    598 Status:		Active
    599 Start Date:	Thu Mar 15 2007
    600 End Date:
    601 Base Tag:	reinoud-bufcleanup-base
    602 Maintainer:	Reinoud Zandijk <reinoud (a] NetBSD.org>
    603 Scope:		src/sys and src/common
    604 Notes:		Used as experiment sandbox and if successful hopefully one day
    605 		to be integrated.
    606 
    607 Branch:		thorpej-atomic
    608 Description:	Implementation of an atomic memory operations API modeled
    609 		after the one in Solaris 10.
    610 Status:		Active
    611 Start Date:	Apr 11 2007
    612 End Date:
    613 Base tag:	thorpej-atomic-base
    614 Maintainer:	Jason Thorpe <thorpej (a] netbsd.org>
    615 Scope:		src/common
    616 		src/sys
    617 Notes:		Base atomic primitives need to be implemented for
    618 		all of the supported architectures:
    619 
    620 		alpha		DONE
    621 		arm		DONE
    622 		hppa
    623 		i386		DONE
    624 		ia64
    625 		m68k		DONE (except for 68010)
    626 		mips
    627 		ns32k
    628 		powerpc		DONE except for membar_*()
    629 		powerpc64	DONE except for membar_*()
    630 		sh3
    631 		sparc		DONE except for membar_*()
    632 		sparc64		DONE except for membar_*()
    633 		vax
    634 		x86_64		DONE
    635 
    636 		Tested:
    637 
    638 		alpha		NO
    639 		arm		NO
    640 		hppa		NO
    641 		i386		NO
    642 		ia64		NO
    643 		m68k		NO
    644 		mips		NO
    645 		ns32k		NO
    646 		powerpc		NO
    647 		powerpc64	NO
    648 		sh3		NO
    649 		sparc		NO
    650 		sparc64		NO
    651 		vax		NO
    652 		x86_64		NO
    653 
    654 		TODO:
    655 
    656 		all		- Need to replace mb_*() with membar_*().
    657 
    658 				- Audit MUTEX_CAS() and RWLOCK_CAS() uses
    659 				  to see of membar_enter() is required here.
    660 
    661 				- Talk to ad@ -- figure out of non-atomic
    662 				  mutex / rwlock release is actually safe.
    663 
    664 		arm		- Consider using a RAS technique like
    665 				  MIPS uses for _lock_cas() and the mutex
    666 				  stubs.  Possibly do more than one atomic
    667 				  op as a RAS.  Possibly implement mutex
    668 				  stubs using the technique.
    669 
    670 		m68k		- Need to do 68010 support.
    671 		
    672 		i386		- Need to change when x86_patch() is called
    673 				  so we can test ncpus.
    674 
    675 		powerpc		- Figure out if we need barriers in the
    676 				  atomic ops themselves (hopefully not!)
    677 
    678 		x86_64		- Need to change when x86_patch() is called
    679 				  so we can test ncpus.
    680 
    681 ########################################################################
    682 # Individual developers' branches (Terminated):
    683 ########################################################################
    684 
    685 Branch:		bouyer-scsipi
    686 Description:	Integration of atapi support
    687 Status:		Terminated
    688 Start Date:
    689 End Date:
    690 Base Tag:
    691 Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>
    692 Scope:		kernel
    693 Notes:		Superseded by thorpej_scsipi
    694 
    695 Branch:		bouyer-xen2
    696 Description:	update xen port to xen 2.0, with support for domain0 operations
    697 Status:		Terminated
    698 Start Date:	Dec 13 2004
    699 End Date:	Mar 10 2005
    700 Base Tag:	netbsd-2-base
    701 Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>
    702 Scope:		src/sys/arch/xen
    703 Notes:
    704 
    705 Branch:		bouyer-xenamd64
    706 Description:	add amd64 support to Xen and rework some parts to share more code between Xen and others
    707 Status:		Terminated
    708 Start Date:	18 Oct 2007
    709 End Date:	22 Nov 2007
    710 Base Tag:	bouyer-xenamd64-base
    711 Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>
    712 Scope:		kernel
    713 Notes:		
    714 
    715 Branch: 	chap-midi
    716 Description:	Renovation of MIDI support
    717 Status: 	Terminated; merged to -current
    718 Start Date:	19 May 2006
    719 End Date:	30 Jun 2006
    720 Base Tag:	chap-midi-base
    721 Maintainer:	Chapman Flack <chap (a] NetBSD.org>
    722 Scope:		sys, share/man, usr.bin
    723 Notes:
    724 
    725 Branch:		chs-ubc
    726 Description:	Unified Buffer Cache
    727 Status:		Terminated
    728 Start Date:
    729 End Date:
    730 Base Tag:	chs-ubc-base
    731 Maintainer:	Chuck Silvers <chs (a] NetBSD.org>
    732 Scope:		kernel
    733 Notes:
    734 
    735 Branch:		chs-ubc2
    736 Description:	 Unified Buffer Cache
    737 Status:		Terminated; merged to -current
    738 Start Date:
    739 End Date:
    740 Base Tag:	chs-ubc2-base, chs-ubc2-newbase
    741 Maintainer:	Chuck Silvers <chs (a] NetBSD.org>
    742 Scope:		kernel
    743 Notes:
    744 
    745 Branch:		cjs-build-against-obj-dir
    746 Description:	?
    747 Status:		?
    748 Start Date:
    749 End Date:
    750 Base Tag:
    751 Maintainer:	Curt Sampson <cjs (a] NetBSD.org>
    752 Scope:		Entire tree.
    753 Notes:
    754 
    755 Branch:		eeh-paddr_t
    756 Description:	use separate types for virtual vs. physical addresses
    757 Status:		Terminated; merged to -current
    758 Start Date:
    759 End Date:
    760 Base Tag:	eeh-paddr_t-base
    761 Maintainer:	Eduardo Horvath <eeh (a] NetBSD.org>
    762 Scope:		kernel
    763 Notes:		This is needed to support 32-bit kernels on sparc64.
    764 
    765 Branch:		elad-kernelauth
    766 Description:	Native NetBSD implementation of Apple's kernel authorization
    767 		based on TN2127. This is a "clean-room" implementation to
    768 		avoid any licensing issues.
    769 Status:		Terminated; merged to -current
    770 Start Date:	Tue Mar	 7 2006
    771 End Date:	Mon May 15 2006
    772 Base Tag:	elad-kernelauth-base
    773 Maintainer:	Elad Efrat <elad (a] NetBSD.org>
    774 Scope:		src/sys, src/share/man/man9/Makefile,
    775 		src/share/man/man9/kauth.h, src/distrib/sets/lists/comp/mi
    776 Notes:
    777 
    778 Branch:		fvdl-softdep
    779 Description:	FFS soft dependencies
    780 Status:		Terminated; merged to -current
    781 Start Date:
    782 End Date:
    783 Base Tag:	fvdl-softdep-base
    784 Maintainer:	Frank van der Linden <fvdl (a] NetBSD.org>
    785 Scope:		kernel
    786 Notes:
    787 
    788 Branch:		gehenna-devsw
    789 Description:	auto-generation of devsw table
    790 Status:		Terminated
    791 Start Date:	16 May 2002
    792 End Date:	6 Sep 2002
    793 Base Tag:	gehenna-devsw-base
    794 Maintainer:	MAEKAWA Masahide <gehenna (a] NetBSD.org>
    795 Scope:		syssrc
    796 Notes:		The goal is to get rid of the existing device switch tables in
    797 		port-dependent conf.c and to generate them dynamically by
    798 		config(8).
    799 
    800 Branch:		is-newarp
    801 Description:	ARP for non-Ethernet
    802 Status:		Terminated; merged before NetBSD 1.3
    803 Start Date:	1996/10/13
    804 End Date:	1997/03/15
    805 Base Tag:	is-newarp-base
    806 Maintainer:	Ignatios Souvatzis <is (a] NetBSD.org>
    807 Scope:		kernel
    808 Notes:
    809 
    810 Branch:		jmcneill-pm
    811 Description:	Power management framework overhaul, ACPI improvements
    812 Status:		Terminated; merged before NetBSD 5.0
    813 Start Date:	3 Aug 2007
    814 End Date:	9 Dec 2007
    815 Base Tag:	jmcneill-pm-base
    816 Maintainer:	Jared D. McNeill <jmcneill (a] NetBSD.org>
    817 Scope:		kernel
    818 Notes:		
    819 
    820 Branch:		kenh-if-detach
    821 Description:	Interface detach support.
    822 Status:		?
    823 Start Date:
    824 End Date:
    825 Base Tag:	kenh-if-detach-base
    826 Maintainer:	Ken Hornstein <kenh (a] NetBSD.org>
    827 Scope:		kernel
    828 Notes:
    829 
    830 Branch:		kent-audio1
    831 Description:	Audio converter pipeline
    832 Status:		Terminated; merged to -current
    833 Start Date:	Tue Dec  7 2004
    834 End Date:	Tue Jan 11 2005
    835 Base Tag:	kent-audio1-base
    836 Maintainer:	TAMURA Kent <kent (a] NetBSD.org>
    837 Scope:		kernel (audio device drivers)
    838 Notes:		http://mail-index.netbsd.org/tech-kern/2004/12/03/0007.html
    839 		Please consult with the maintainer before committing
    840 		to this branch.
    841 
    842 Branch:		kqueue
    843 Description:	kqueue kernel event notification mechanism (from FreeBSD)
    844 Status:		Terminated; merged to -current
    845 Start Date:	Tue Jul 10 23:08:38 EST 2001
    846 End Date:	Tue Oct 24 09:14:14 GMT 2002
    847 Base Tag:	kqueue-base
    848 Maintainer:	Jaromir Dolecek <jdolecek (a] NetBSD.org>
    849 Scope:		kernel, libc/sys, share/man/man9, usr.bin/fstat
    850 Notes:		Integration of FreeBSD's kqueue(2) mechanism, with various
    851 		local internal changes to better suit NetBSD, and
    852 		enhancements such as looking up filters by name or
    853 		number, and dynamic registration of "user" filters.
    854 		The work is complete as is, but is awaiting more
    855 		feedback from various kernel gurus before going mainline.
    856 
    857 Branch:		ktrace-lwp
    858 Description:	ktrace support for lwp ids.
    859 Status:		Terminated; merged to -current
    860 Start Date:	Wed Jul  2 15:27:30 UTC 2003
    861 End Date:	Sun Dec 11 12:25:29 UTC 2005
    862 Base Tag:	ktrace-lwp-base
    863 Maintainer:	Darren Reed <darrenr (a] NetBSD.org>
    864 Scope:		sys
    865 Notes:		
    866 
    867 Branch:		marc-pcmcia
    868 Description:	PCMCIA support
    869 Status:		Terminated; merged to -current
    870 Start Date:
    871 End Date:
    872 Base Tag:	marc-pcmcia-base, marc-pcmcia-bp
    873 Maintainer:	Marc Horowitz <marc (a] NetBSD.org>
    874 Scope:		kernel
    875 Notes:
    876 
    877 Branch:		minoura_x68k_bus_h
    878 Description:	bus_space(9) and bus_dma(9) implementation for x68k
    879 Status:		Terminated; merged to -current
    880 Start Date:	23 Dec 1998
    881 End Date:	16 Mar 1999
    882 Base Tag:	minoura_x68k_bus_h-base
    883 Maintainer:	Minoura Makoto <minoura (a] NetBSD.org>
    884 Scope:		sys/arch/x68k
    885 Notes:
    886 
    887 Branch:		minoura-xpg4dl
    888 Description:	Citrus Project locale subsystem
    889 Status:		Terminated; (partly) merged to -current
    890 Start Date:	28 March 2000
    891 End Date:
    892 Base Tag:	minoura-xpg4dl-base
    893 Maintainer:	Minoura Makoto <minoura (a] NetBSD.org>
    894 Scope:		basesrc, syssrc, sharesrc
    895 Notes:		Citrus Project is developing dynamically-loadable, codeset-
    896 		independent locale subsystem.  Part of the implementation
    897 		(LC_CTYPE) called XPG4DL is now integrated to -current.
    898 
    899 Branch:		mrg-vm-swap
    900 Description:	dynamic swap allocation, swap-to-files support
    901 Status:		Terminated; abandoned for mrg-vm-swap2
    902 Start Date:	12 February 1997
    903 End Date:	15 March 1997
    904 Base Tag:	[none]
    905 Maintainer:	Matthew R. Green <mrg (a] NetBSD.org>
    906 Scope:		kernel
    907 Notes:
    908 
    909 Branch:		mrg-vm-swap2
    910 Description:	dynamic swap allocation, swap-to-files support
    911 Status:		Terminated; merged to -current
    912 Start Date:	4 May 1997
    913 End Date:	12 June 1997
    914 Base Tag:	mrg-vm-swap2-base
    915 Maintainer:	Matthew R. Green <mrg (a] NetBSD.org>
    916 Scope:		kernel
    917 Notes:
    918 
    919 Branch:		nathanw_sa
    920 Description:	Scheduler activations
    921 Status:		Terminated; merged to -current
    922 Start Date:	5 March 2001
    923 End Date:	18 January 2003
    924 Base Tag:	nathanw_sa_base
    925 Maintainer:	Nathan Williams <nathanw (a] NetBSD.org>
    926 Scope:		kernel, libc, libkvm, libpthread, libpthread_dbg, include, 
    927 		bin/ps usr.bin/systat usr.bin/top usr.bin/w
    928 		gnu/dist/toolchain/gdb gnu/usr.bin/gdb
    929 Notes:		The idea of scheduler activations is described in the
    930 		classic paper by Anderson et al., in ACM Transactions
    931 		a on Computer Systems volume 10 issue 1 (1992),which
    932 		can be found at
    933 		http://www.acm.org/pubs/citations/journals/tocs/1992-10-1/p53-anderson/
    934 		Many ideas in the implementation are based on the
    935 		implementation of scheduler activations added to Mach
    936 		3.0 and described by Davis et al. in the University of
    937 		Washington CS tech report 92-08-93, which can be found
    938 		at
    939 		ftp://ftp.cs.washington.edu/tr/1992/08/UW-CSE-92-08-03.PS.Z
    940 
    941 		My USENIX paper on the subject can be found at
    942 		http://web.mit.edu/nathanw/www/usenix/
    943 
    944 		Please consult with the maintainer before committing
    945 		to this branch.
    946 		Other tags starting with nathanw_sa reserved for
    947 		branch management and are not guaranteed to be stable.
    948 
    949 		Trunk tagged with "nathanw_sa_before_merge" prior to
    950 		merging branch down to trunk.  Branch tagged with
    951 		"nathanw_sa_end" to indicate the ending revision of
    952 		the branch.
    953 
    954 Branch:		newlock
    955 Description:	New locking primitives, based on Solaris's
    956 Status:		Terminated
    957 Start Date:	March 9, 2002
    958 End Date:	February 12, 2007
    959 Base Tag:	newlock-base
    960 Maintainer:	Jason R. Thorpe <thorpej (a] NetBSD.org>
    961 Scope:		Kernel
    962 Notes:		The goal is to replace the existing lockmgr() and
    963 		simple_lock() based locking mechanisms with the
    964 		primitives found in Solaris: mutexes and rwlocks.
    965 		Superseded by the newlock2 branch.
    966 
    967 Branch:		newlock2
    968 Description:	New locking primitives, based on Solaris's
    969 Status:		Terminated
    970 Start Date:	September 9, 2006
    971 End Date:	February 12, 2007
    972 Base Tag:	newlock2-base
    973 Maintainer:	Andrew Doran <ad (a] NetBSD.org>
    974 Scope:		Kernel
    975 Notes:		As per the newlock branch, however given the amount of time
    976 		the original branch has lain dormant, a new one has been
    977 		created.  Goals:
    978 		- Implement new locking primitives on most-used ports.
    979 		- Minor locking improvements.
    980 		- Remove spinlockmgr().
    981 
    982 Branch:		nick-csl-alignment
    983 Description:	Provide correctly aligned __cpu_simple_lock_t for hppa
    984 Status:		Terminated
    985 Start Date:	2007-07-18
    986 End Date:
    987 Base Tag:	nick-csl-alignment-base5
    988 Maintainer:	Nick Hudson <skrll (a] NetBSD.org>
    989 Scope:		sys, lib/libpthread, lib/libpthread_dbg
    990 Notes:	
    991 
    992 Branch:		perseant-lfsv2
    993 Description:	LFS incompatible on-disk data structure changes
    994 Status:		Terminated
    995 Start Date:	27 June 2001
    996 End Date:	16 July 2001
    997 Base Tag:	perseant-lfsv2-base
    998 Maintainer:	Konrad Schroder <perseant (a] NetBSD.org>
    999 Scope:		basesrc/{sbin/*lfs,libexec/lfs_cleanerd,usr.sbin/dumplfs}, syssrc/sys/ufs
   1000 Notes:		This branch should be short-lived, I expect to merge as soon
   1001 		as the data structures required for unremove are in and tested.
   1002 
   1003 Branch:		ppcoea-renovation
   1004 Description:	General renovation and cleanup of all OEA PowerPC ports.
   1005 Status:		Terminated; merged to -current
   1006 Start Date:	30 April 2007
   1007 End Date:	15 October 2007
   1008 Base Tag:	ppcoea-renovation-base
   1009 Maintainer:	Tim Rightnour <garbled (a] netbsd.org>
   1010 Scope:		src/sys/arch
   1011 Notes:		This branch is for a general cleanup of all OEA-based PowerPC
   1012 		ports. OEA (Operating Environment Architecture) PowerPC refers
   1013 		to the 601, 603, 604, and similar chips.  Specifically, not the
   1014 		403/401 and other embedded chips. The general concept is to get
   1015 		them all compiling, and sharing as much code as possible.  All
   1016 		developers are welcome to commit to this branch.
   1017 
   1018 Branch:		thorpej-devvp
   1019 Description:	replace dev_t with struct vnode * in devsw entry points
   1020 Status:		Terminated
   1021 Start Date:	Sep 6 2001
   1022 End Date:	???
   1023 Base Tag:	thorpej-devvp-base
   1024 Maintainer:	Jason Thorpe <thorpej (a] NetBSD.org>
   1025 Scope:		syssrc
   1026 Notes:		Kernels built from this branch are not expected
   1027 		to function correctly at this time.
   1028 
   1029 		Ports known to compile on this branch:
   1030 			alpha
   1031 			i386
   1032 
   1033 Branch:		peter-altq
   1034 Description:	New ALTQ framework:
   1035 		- sync with KAME sources
   1036 		- share mtag/name mapping functions
   1037 		- separate altq + pf attachment
   1038 Status:		Terminated; merged to -current
   1039 Start Date:	March 16, 2006
   1040 End Date:	October 12, 2006
   1041 Base Tag:	peter-altq-base
   1042 Maintainer:	Peter Postma <peter (a] NetBSD.org>,
   1043 		Martin Husemann <martin (a] NetBSD.org>,
   1044 		Matthias Scheler <tron (a] NetBSD.org>
   1045 Scope:		dist/pf dist/ipf distrib/sets/lists sys usr.sbin/altq
   1046 Notes:		Only the first item in the description was finished
   1047 		in this branch.
   1048 
   1049 Branch:		sommerfeld_i386mp_1
   1050 Description:	Multiprocessor support for i386 using Intel MP BIOS.
   1051 Status:		Terminated; merged to -current
   1052 Start Date:	21 Feb 2000
   1053 End Date:	01 Oct 2002
   1054 Base Tag:	sommerfeld_i386mpbase_1
   1055 Maintainer:	Bill Sommerfeld <sommerfeld (a] NetBSD.org>
   1056 Scope:		sys/arch/i386
   1057 Notes:
   1058 		Code committed to the branch has booted to multiuser 
   1059 		on at least one system.
   1060 
   1061 		Not guaranteed to compile against mainline since -current
   1062 		may have changed incompatibly with the last branch update;
   1063 		use "cvs update -D" to roll-back the rest of the tree to match.
   1064 
   1065 		Please get explicit permission from the maintainer 
   1066 		before each commit, or your changes will be backed out.
   1067 		Other tags starting with sommerfeld_ are private to 
   1068 		the developer and are guaranteed to be unstable.
   1069 		Only the maintainer should move tags.
   1070 
   1071 		Note that this branch uses a DIFFERENT scheme for 
   1072 		syncing with the mainline.  the maintainer uses some private
   1073 		scripts for keeping them in sync; if you make commits 
   1074 		to the branch to "resynchronize" things, you'll
   1075 		probably do it wrong; instead, ask the maintainer to
   1076 		resynchronize things.
   1077 
   1078 		See sys/arch/i386/TODO on the branch for a list of known
   1079 		issues with the branch.
   1080 
   1081 Branch:		thorpej-mips-cache
   1082 Description:	overhaul MIPS cache support code
   1083 Status:		Terminated; merged to -current
   1084 Start Date:	Oct 23 2001
   1085 End Date:	Nov 14 2001
   1086 Base Tag:	thorpej-mips-cache-base
   1087 Scope:		syssrc
   1088 Notes:		This branch needs more debugging, testing, and more
   1089 		ports need to be converted to the new world order.
   1090 
   1091 		The following processors have had cache ops
   1092 		written:
   1093 
   1094 			* R2000/R3000 (cache_r3k) -- light testing,
   1095 			  needs to be beat on a lot more to make
   1096 			  sure it's working.
   1097 
   1098 			* R4000/R4400 (cache_r4k) -- mhitch (a] NetBSD.org
   1099 			  tracked down a bug, which has been fixed.
   1100 
   1101 			  Confirmed working on R4000-with-L2.
   1102 
   1103 			  Confirmed working on R4400-no-L2 and
   1104 			  R4400-with-L2.
   1105 
   1106 			* R4600/R5000 (cache_r5k) -- shin (a] NetBSD.org
   1107 			  has committed fixes to this code.
   1108 
   1109 			  Confirmed working on R4600 v2 (SGI IP-22 with
   1110 			  no SysAD L2 cache).
   1111 
   1112 			  Confirmed working on RM5260 (Algorithmics P-5064).
   1113 
   1114 			* TX39 (cache_tx39) -- uch (a] NetBSD.org has
   1115 			  committed fixes to this code.  Awaiting
   1116 			  confirmation that it is working properly.
   1117 
   1118 			* R5900 (cache_r5900) -- uch (a] NetBSD.org has
   1119 			  written this code and tested it on a
   1120 			  PlayStation 2.
   1121 
   1122 		The following ports have been updated to compile (and
   1123 		use optimized-for-processor bus_dma routines).  Those
   1124 		that have been tested and work are marked with [WORKING].
   1125 
   1126 			* algor		[WORKING]
   1127 
   1128 			* arc		[WORKING]
   1129 
   1130 			* pmax		[WORKING]
   1131 
   1132 			* playstation2	[WORKING]
   1133 					Needs optimized bus_dmamap_sync().
   1134 
   1135 			* hpcmips	[need verification that this is working]
   1136 					Needs optimized bus_dmamap_sync().
   1137 
   1138 			* sgimips	[WORKING]
   1139 					Needs optimized bus_dmamap_sync().
   1140 
   1141 			* cobalt	[need testing]
   1142 
   1143 			* mipsco	[need testing]
   1144 
   1145 			* newsmips	[need testing]
   1146 
   1147 Branch:		thorpej_scsipi
   1148 Description:	SCSI/ATAPI midlayer rewrite.
   1149 Status:		Terminated; merged to -current
   1150 Start Date:
   1151 End Date:	Apr 25 2001
   1152 Base Tag:	thorpej_scsipi_base, thorpej_scsipi_nbase
   1153 Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>,
   1154 		Jason Thorpe <thorpej (a] NetBSD.org>
   1155 Scope:		syssrc
   1156 Notes:		When a change from -current is pulled up please move the
   1157 		thorpej_scsipi_base tag to the revision you're syncing with.
   1158 		thorpej_scsipi_nbase is private to maintainer (only
   1159 		used when syncing the whole branch with HEAD).
   1160 		Just before the merge, syssrc has been tagged with
   1161 		thorpej_scsipi_beforemerge
   1162 
   1163 Branch:		thorpej-signal
   1164 Description:	?
   1165 Status:		?
   1166 Start Date:
   1167 End Date:
   1168 Base Tag:	thorpej-signal-base
   1169 Maintainer:	Jason Thorpe <thorpej (a] NetBSD.org>
   1170 Scope:		kernel
   1171 Notes:
   1172 
   1173 Branch:		thorpej-setroot
   1174 Description:	?
   1175 Status:		Terminated; merged to -current
   1176 Start Date:
   1177 End Date:
   1178 Base Tag:
   1179 Maintainer:	Jason Thorpe <thorpej (a] NetBSD.org>
   1180 Scope:		kernel
   1181 Notes:
   1182 
   1183 Branch:		simonb-timecounters
   1184 Description:	Port FreeBSD timecounters to NetBSD
   1185 Status:		Terminated
   1186 Start Date:	Sat Feb 04 2006
   1187 End Date:	Wed Jun 07 2006
   1188 Base Tag:	simonb-timecounters-base
   1189 Maintainer:	Simon Burge <simonb (a] NetBSD.org>,
   1190 		Frank Kardel <kardel (a] NetBSD.org>
   1191 Scope:		sys, sbin/savecore, usr.bin/vmstat, usr.sbin/ntp
   1192 Notes:		early (partial conversion) commit to -current
   1193 		ok'ed by core@ on 20060605 for testing and further
   1194 		simplified conversion
   1195 
   1196 Branch:		wrstuden-devbsize
   1197 Description:	Modify buffer cache to deal with different devices having
   1198 		different block sizes. Also DEV_BSIZE would go away.
   1199 Status:		Terminated
   1200 Start Date:	Aug or Sept 1999
   1201 End Date:	1 Apr 2000
   1202 Base tag:	wrstuden-devbsize-base
   1203 Maintainer:	Bill Studenmund <wrstuden (a] NetBSD.org>
   1204 Scope:		kernel
   1205 Notes:		No longer active due to lack of time, and introduction
   1206 		of UBC. In terms of UBC, the primary cache for
   1207 		file data is the VM cache, which needs to operate
   1208 		in terms of VM pages. As no existing device has native
   1209 		pages the same size as our VM pages, there already is
   1210 		a mapping going on between the VM system and the
   1211 		underlying blocks. So it would be easier and cleaner
   1212 		to adjust that to deal w/ different block sizes.
   1213 		Also with UBC, all i/o is in terms of bytes at an offset
   1214 		with a certain length, so the exact block size isn't a big
   1215 		deal.
   1216 
   1217 		Any other wrstuden-devbsize tag may (and should) go away.
   1218 
   1219 Branch:		yamt-idlelwp
   1220 Description:	idle lwp, and some changes depending on it.
   1221 
   1222 		1. separate context switching and thread scheduling.
   1223 		   (cf. gmcgarry_ctxsw)
   1224 		2. implement idle lwp.
   1225 		3. clean up related MD/MI interfaces.
   1226 		4. make scheduler(s) modular.
   1227 
   1228 Status:		Terminated; merged to -current
   1229 Start Date:	Fri Feb 17 2007
   1230 End Date:	Thu May 17 2007
   1231 Base Tag:	yamt-idlelwp-base8
   1232 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1233 Scope:		src/sys  (src/common is tagged but not branched)
   1234 Notes:		
   1235 		Status of ports:
   1236 		  alpha			[ Done, UP tested, MP not tested ]
   1237 		  i386			[ Done, tested ]
   1238 		  amd64			[ Done, tested ]
   1239 		  mips			[ Done, both MIPS1 and MIPS3 tested]
   1240 		  sparc			[ Done, UP tested, MP might have
   1241 					  some problem after newlock2 merge ]
   1242 		  sparc64		[ Done, tested ]
   1243 		  arm			[ Done, SA1 tested. See PR 36548 ]
   1244 		  macppc/powerpc	[ Done, OEA tested ]
   1245 		  hppa			[ Done, tested ]
   1246 		  sh3			[ Done, tested ]
   1247 		  vax			[ Done, UP tested, MP untested ]
   1248 		  m68k			[ Done, tested on several ports ]
   1249 		  ns32k			[ broken ]
   1250 		  ia64			[ broken ]
   1251 		  pdp10			[ broken ]
   1252 
   1253 		How to adapt a port?
   1254 
   1255 		- unify cpu_switch, cpu_exit, cpu_switchto into
   1256 		  a single cpu_switchto.  see cpu_switchto.9.
   1257 
   1258 		- implement cpu_idle.  see cpu_idle.9.
   1259 
   1260 		- add a flag argument to cpu_need_resched.
   1261 		  handle RESCHED_IMMED flag, which means "cause a preemption
   1262 		  as soon as possible."  eg. in the case of MULTIPROCESSOR,
   1263 		  send an IPI to the target cpu.
   1264 
   1265 		- "curlwp == NULL" is not a valid check for idle state anymore.
   1266 		  use "(curlwp->l_flag & LW_IDLE) != 0" instead.  curlwp is
   1267 		  almost always non-NULL, with exceptions like early on boot.
   1268 
   1269 		- remove idle pcbs.
   1270 
   1271 		- (if MULTIPROCESSOR) tweak processor trampoline code.
   1272 
   1273 		- (if MULTIPROCESSOR) call mi_cpu_attach when attaching
   1274 		  secondary processors.
   1275 
   1276 		- (if schedhz!=0) call schedclock regardless of the value of
   1277 		  curlwp.
   1278 
   1279 		- of course, update MD users of scheduler/switching API.
   1280 
   1281 Branch:		yamt-km, yamt-km-doc
   1282 Description:	simplify/improve kernel memory management and bootstrap
   1283 Status:		Terminated; merged to -current
   1284 Start Date:	Tue Jan 25 2005
   1285 End Date:	Fri Apr  1 2005
   1286 Base Tag:	yamt-km-base{,2,3,4}, yamt-km-doc-base
   1287 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1288 Scope:		yamt-km: src/sys
   1289 		yamt-km-doc: src/share/man/man9/uvm.9
   1290 Notes:		http://mail-index.NetBSD.org/tech-kern/2004/12/25/0005.html
   1291 
   1292 		the followings are per-port status.
   1293 		(account names mean "tested by".)
   1294 
   1295 		works enough to go to multiuser:
   1296 			alpha, i386, xen (yamt@)
   1297 			pc532 (simonb@)
   1298 			alpha, i386, mac68k, macppc, pmax, shark,
   1299 			    sparc, sparc64, sun3, x68k (chs@)
   1300 			cobalt, dreamcast, hp300, news68k, newsmips,
   1301 			    sun3x (tsutsui@)
   1302 			amiga (mhitch@)
   1303 			cats, hp700 (skrll@)
   1304 			xen (bouyer@)
   1305 
   1306 		known to have the same problem as trunk:
   1307 			vax (chs@, stuck while running kvm_mkdb)
   1308 
   1309 		known to have a problem:
   1310 			luna68k (and, if any, other m68k ports which use TTR)
   1311 			needs to be revisited.
   1312 			-> for luna68k, although not tested,
   1313 			   Sysmap has been moved to avoid kva conflict with
   1314 			   I/O ranges.
   1315 
   1316 		buildable:
   1317 			src/sys/arch/acorn26/conf/GENERIC
   1318 			src/sys/arch/acorn32/conf/GENERIC
   1319 			src/sys/arch/algor/conf/P6032
   1320 			src/sys/arch/alpha/conf/GENERIC
   1321 			src/sys/arch/alpha/conf/GENERIC.MP
   1322 			src/sys/arch/amd64/conf/GENERIC
   1323 			src/sys/arch/amd64/conf/GENERIC.MP
   1324 			src/sys/arch/amiga/conf/GENERIC
   1325 			src/sys/arch/arc/conf/GENERIC
   1326 			src/sys/arch/atari/conf/MILAN-PCIIDE
   1327 			src/sys/arch/bebox/conf/GENERIC
   1328 			src/sys/arch/cats/conf/GENERIC
   1329 			src/sys/arch/cesfic/conf/GENERIC
   1330 			src/sys/arch/cobalt/conf/GENERIC
   1331 			src/sys/arch/dreamcast/conf/GENERIC
   1332 			src/sys/arch/evbarm/conf/TS7200
   1333 			src/sys/arch/evbppc/conf/WALNUT
   1334 			src/sys/arch/evbsh3/conf/COMPUTEXEVB
   1335 			src/sys/arch/evbsh5/conf/CAYMAN64
   1336 			src/sys/arch/hp300/conf/GENERIC
   1337 			src/sys/arch/hp700/conf/GENERIC
   1338 			src/sys/arch/hpcarm/conf/JORNADA728
   1339 			src/sys/arch/hpcmips/conf/GENERIC
   1340 			src/sys/arch/hpcsh/conf/GENERIC
   1341 			src/sys/arch/hpcsh/conf/HPW650PA
   1342 			src/sys/arch/i386/conf/GENERIC
   1343 			src/sys/arch/i386/conf/GENERIC.MP
   1344 			src/sys/arch/i386/conf/XEN0
   1345 			src/sys/arch/i386/conf/XENU
   1346 			src/sys/arch/ibmnws/conf/GENERIC
   1347 			src/sys/arch/iyonix/conf/GENERIC
   1348 			src/sys/arch/luna68k/conf/GENERIC
   1349 			src/sys/arch/mac68k/conf/GENERIC
   1350 			src/sys/arch/macppc/conf/GENERIC
   1351 			src/sys/arch/macppc/conf/GENERIC.MP
   1352 			src/sys/arch/mipsco/conf/GENERIC
   1353 			src/sys/arch/mmeye/conf/GENERIC
   1354 			src/sys/arch/mvme68k/conf/GENERIC
   1355 			src/sys/arch/netwinder/conf/GENERIC
   1356 			src/sys/arch/news68k/conf/GENERIC
   1357 			src/sys/arch/newsmips/conf/GENERIC
   1358 			src/sys/arch/next68k/conf/GENERIC
   1359 			src/sys/arch/ofppc/conf/GENERIC
   1360 			src/sys/arch/pc532/conf/GENERIC
   1361 			src/sys/arch/pmax/conf/GENERIC
   1362 			src/sys/arch/prep/conf/GENERIC
   1363 			src/sys/arch/sandpoint/conf/GENERIC
   1364 			src/sys/arch/sbmips/conf/GENERIC
   1365 			src/sys/arch/sgimips/conf/GENERIC32_IP3x
   1366 			src/sys/arch/shark/conf/GENERIC
   1367 			src/sys/arch/sparc/conf/GENERIC
   1368 			src/sys/arch/sparc/conf/GENERIC.MP
   1369 			src/sys/arch/sparc64/conf/GENERIC
   1370 			src/sys/arch/sparc64/conf/GENERIC.MP
   1371 			src/sys/arch/sun2/conf/GENERIC
   1372 			src/sys/arch/sun3/conf/GENERIC
   1373 			src/sys/arch/vax/conf/GENERIC
   1374 			src/sys/arch/vax/conf/GENERIC.MP
   1375 			src/sys/arch/x68k/conf/GENERIC
   1376 
   1377 			src/sys/arch/playstation2/conf/GENERIC
   1378 
   1379 Branch:		yamt-pdpolicy
   1380 Description:	play with page replacement policy
   1381 		- separate page replacement policy from the rest of kernel
   1382 		- implement alternative replacement policy
   1383 		- related read-ahead adjustment?
   1384 Status:		Terminated; merged to -current
   1385 Start Date:	Sun Mar  5 2006
   1386 End Date:	Sat Sep 16 2006
   1387 Base Tag:	yamt-pdpolicy-base9
   1388 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1389 Scope:		src/sys  (src/common is tagged but not branched)
   1390 Notes:		
   1391 
   1392 Branch:		yamt-readahead
   1393 Description:	play with file readahead
   1394 Status:		Terminated; merged to -current
   1395 Start Date:	Mon Nov 14 2005
   1396 End Date:	Wed Nov 30 2005
   1397 Base Tag:	yamt-readahead-base3
   1398 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1399 Scope:		src/sys
   1400 Notes:		
   1401 
   1402 Branch:		yamt-uio_vmspace
   1403 Description:	uio_lwp/uio_segflg -> uio_vmspace
   1404 Status:		Terminated; merged to -current
   1405 Start Date:	Mon Dec 31 2005
   1406 End Date:	Wed Mar  1 2006
   1407 Base Tag:	yamt-uio_vmspace-base5
   1408 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1409 Scope:		src/sys
   1410 Notes:		
   1411 
   1412 Branch:		yamt-splraiseipl
   1413 Description:	finish implementing splraiseipl (and makeiplcookie).
   1414 		http://mail-index.NetBSD.org/tech-kern/2006/07/01/0000.html
   1415 
   1416 		- completes workqueue(9) and netbt.
   1417 		- fix PR/33218.
   1418 
   1419 Status:		Terminated; merged to -current
   1420 Start Date:	Mon Sep 18 2006
   1421 End Date:	Fri Dec 22 2006
   1422 Base Tag:	yamt-splraiseipl-base5
   1423 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1424 Scope:		src/sys  (src/common is tagged but not branched)
   1425 Notes:		
   1426 		tested (by who):
   1427 			alpha		(yamt)
   1428 			alpha		(pavel)
   1429 			amd64		(reported privately)
   1430 			cobalt		(tsutsui)
   1431 			ews4800mips	(tsutsui)
   1432 			hp300		(tsutsui)
   1433 			hpcarm		(reported privately)
   1434 			i386		(yamt)
   1435 			macppc		(tsutsui)
   1436 			news68k		(tsutsui)
   1437 			sgimips(IP32)	(tsutsui)
   1438 			sparc(sun4c)	(tsutsui)
   1439 			sun2		(tsutsui)
   1440 			sun3		(tsutsui)
   1441 			sun3x		(tsutsui)
   1442 			xen		(yamt)
   1443 
   1444 		compile-tested:
   1445 			acorn26
   1446 			acorn32
   1447 			algor
   1448 			amiga
   1449 			arc
   1450 			atari
   1451 			bebox
   1452 			cats
   1453 			cesfic
   1454 			dreamcast
   1455 			evbarm
   1456 			evbmips
   1457 			evbppc(marvell)
   1458 			evbppc(ibm4xx)
   1459 			evbsh3
   1460 			hp700
   1461 			hpcmips
   1462 			hpcsh
   1463 			ia64
   1464 			ibmnws
   1465 			iyonix
   1466 			landisk
   1467 			luna68k
   1468 			mac68k
   1469 			mmeye
   1470 			mvme68k
   1471 			mvmeppc
   1472 			mipsco
   1473 			netwinder
   1474 			newsmips
   1475 			next68k
   1476 			ofppc
   1477 			pc532
   1478 			pmax
   1479 			pmppc
   1480 			prep
   1481 			sandpoint
   1482 			sbmips
   1483 			shark
   1484 			sparc
   1485 			sparc64
   1486 			vax
   1487 			x68k
   1488 			zaurus
   1489 
   1490 		not tested:
   1491 			pdp10 (i don't know how to build)
   1492 			sh5 (not buildable with an unrelated problem.)
   1493 
   1494     compile  CAYMAN64/netbsd32_sa.o
   1495     cc1: warnings being treated as errors
   1496     /exports/nbsd/src/sys/compat/netbsd32/netbsd32_sa.c: In function 'netbsd32_sa_ucsp':
   1497     /exports/nbsd/src/sys/compat/netbsd32/netbsd32_sa.c:126: warning: implicit declaration of function '_UC_MACHINE32_SP'
   1498     --- netbsd32_sa.o ---
   1499     *** [netbsd32_sa.o] Error code 1
   1500     1 error
   1501 
   1502 		notyet:
   1503 			amigappc
   1504 			playstation2
   1505 
   1506 Branch:		yamt-vop
   1507 Description:	remove several VOPs
   1508 Status:		Terminated; merged to -current
   1509 Start Date:	Wed Oct 19 2005
   1510 End Date:	Wed Nov  2 2005
   1511 Base Tag:	yamt-vop-base3
   1512 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1513 Scope:		src/sys
   1514 Notes:		http://mail-index.NetBSD.org/tech-kern/2005/09/27/0000.html
   1515 
   1516 Branch:		yamt-x86pmap
   1517 Description:	merge i386 and amd64 pmap
   1518 Status:		Terminated; merged to -current
   1519 Start Date:	Mon Sep 24 2007
   1520 End Date:	Fri Oct 19 2007
   1521 Base Tag:	yamt-x86pmap-base4
   1522 Maintainer:	YAMAMOTO Takashi <yamt (a] NetBSD.org>
   1523 Scope:		src/sys  (src/common is tagged but not branched)
   1524 Notes:		
   1525 
   1526 Branch:		gdamore-uart
   1527 Description:	Add register table support to com driver.
   1528 Status:		Active
   1529 Start Date:	14 June 2006
   1530 End Date:	13 July 2006
   1531 Base Tag:	gdamore-uart-base
   1532 Maintainer:	Garrett D'Amore <gdamore (a] NetBSD.org>
   1533 Scope:		kernel
   1534 Notes:		Results in consolidation of Alchemy (mips/dev/alchemy/aucom.c)
   1535 		com support, and also removes a nasty hack from Atheros com.
   1536 
   1537 ########################################################################
   1538 # Other:
   1539 ########################################################################
   1540 
   1541 Branch:		magnum
   1542 Description:	?
   1543 Status:		?
   1544 Start Date:
   1545 End Date:
   1546 Base Tag:	magnum-base
   1547 Maintainer:	?
   1548 Scope:		kernel
   1549 Notes:
   1550 
   1551