xref: /src/doc/BRANCHES

#	$NetBSD: BRANCHES,v 1.10 2003/07/26 17:24:45 salo Exp $
#
# This file contains a list of branches that exist in the NetBSD CVS
# tree and their current state.
#
# This list is necessarily incomplete.
# 
# Within reason, developers may create branch and version tags at any
# time for any purpose.  To avoid name collisions, private tags should
# have names which begin with the developer's NetBSD login name
# followed by a - or _ character (e.g., thorpej_scsipi,
# thorpej-signal)
# 
# Any branch or version tag not listed here should be assumed to be
# private to the developer who created it.  It is inappropriate for
# anyone other than that developer to commit, move tags, or otherwise
# modify the contents of the branch.
#
# Please update this file when a new branch is ready for consumption
# by folks other than the maintainer, or when the use or status of an
# existing branch changes significantly.
#
# Format:
#   Branch:	  name of branch
#   Description:  Purpose and intention of the branch
#   Status:	  Active/Terminated/Dormant
#   Start Date:	  date first instantiated
#   End Date:	  date it was Terminated/made_Dormant, if any
#   Base Tag:	  netbsd-1-5-base, etc.
#   Maintainer:	  Somebody to blame.
#   Scope:	  Portion of the tree covered.
#   Notes:	  Various other info, perhaps explanation of special tags,
#		  who-may-commit policies, etc.


# Release branches:

Branch:		comdex-fall-1999
Description:	Special release branch for pre-1.5 release at
		Fall 1999 COMDEX.
Status:		Terminated
Start Date:
End Date:
Base Tag:	comdex-fall-1999-base
Maintainer:	?
Scope:		Entire tree.
Notes:

Branch:		netbsd-0-9
Description:	The NetBSD 0.9 release branch
Status:		Terminated
Start Date:
End Date:
Base Tag:	netbsd-0-9-base
Maintainer:	Release Engineering <releng (a] NetBSD.org>
Scope:		Entire tree.
Notes:		Subsidiary tags of: netbsd-0-9-ALPHA, netbsd-0-9-ALPHA2,
		netbsd-0-9-BETA, netbsd-0-9-RELEASE.
		Commits restricted to release engineering.

Branch:		netbsd-1-0
Description:	The NetBSD 1.0 release branch
Status:		Terminated
Start Date:
End Date:
Base Tag:	netbsd-1-0-base
Maintainer:	Release Engineering <releng (a] NetBSD.org>
Scope:		Entire tree.
Notes:
		Commits restricted to release engineering.

Branch:		netbsd-1-1
Description:	The NetBSD 1.1 release branch
Status:		Terminated
Start Date:
End Date:
Base Tag:	netbsd-1-1-base
Maintainer:	Release Engineering <releng (a] NetBSD.org>
Scope:		Entire tree.
Notes:
		Commits restricted to release engineering.

Branch:		netbsd-1-2
Description:	The NetBSD 1.2 release branch
Status:		Terminated
Start Date:
End Date:
Base Tag:	netbsd-1-2-base
Maintainer:	Release Engineering <releng (a] NetBSD.org>
Scope:		Entire tree.
Notes:
		Commits restricted to release engineering.

Branch:		netbsd-1-3
Description:	The NetBSD 1.3 release branch
Status:		Terminated
Start Date:
End Date:
Base Tag:	netbsd-1-3-base
Maintainer:	Release Engineering <releng (a] NetBSD.org>
Scope:		Entire tree.
Notes:
		Commits restricted to release engineering.

Branch:		netbsd-1-4
Description:	The NetBSD 1.4 release branch
Status:		Active
Start Date:	1 Apr 2000
End Date:
Base Tag:	netbsd-1-4-base
Maintainer:	1.4 Release Engineering <releng-1-4 (a] NetBSD.org>
Scope:		Entire tree.
Notes:
		Commits restricted to release engineering.

Branch:		netbsd-1-5
Description:	The NetBSD 1.5 release branch
Status:		Active
Start Date:	20 Jun 2000
End Date:
Base Tag:	netbsd-1-5-base
Maintainer:	1.5 Release Engineering <releng-1-5 (a] NetBSD.org>
Scope:		Entire tree.
Notes:
		Commits restricted to release engineering.

Branch:		netbsd-1-6
Description:	The NetBSD 1.6 release branch
Status:		Active
Start Date:	22 May 2002
End Date:
Base Tag:	netbsd-1-6-base
Maintainer:	1.6 Release Engineering <releng-1-6 (a] NetBSD.org>
Scope:		Entire tree.
Notes:
		Commits restricted to Release Engineering.


# Individual developers' branches:


Branch:		bjh21-hydra
Description:	Simtec Hydra support and ARM SMP in general
Status:		Active
Start Date:	18 Oct 2002
End Date:
Base Tag:	bjh21-hydra-base
Maintainer:	Ben Harris <bjh21 (a] NetBSD.org>
Scope:		sys/arch/arm sys/arch/acorn32
Notes:		This code is on a branch because it involves changes to
		cpuswitch.S which would otherwise make merging the
		nathanw_sa branch difficult.  This branch is expected
		to be merged to the trunk shortly after nathanw_sa.

Branch:		bouyer-scsipi
Description:	Integration of atapi support
Status:		Terminated
Start Date:
End Date:
Base Tag:
Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>
Scope:		kernel
Notes:		Superseded by thorpej_scsipi

Branch:		chs-ubc
Description:	? Unified Buffer Cache
Status:		?
Start Date:
End Date:
Base Tag:	chs-ubc-base
Maintainer:	Chuck Silvers <chs (a] NetBSD.org>
Scope:		kernel
Notes:

Branch:		chs-ubc2
Description:	? Unified Buffer Cache
Status:		?
Start Date:
End Date:
Base Tag:	chs-ubc2-base, chs-ubc2-newbase
Maintainer:	Chuck Silvers <chs (a] NetBSD.org>
Scope:		kernel
Notes:

Branch:		cjs-build-against-obj-dir
Description:	?
Status:		?
Start Date:
End Date:
Base Tag:
Maintainer:	Curt Sampson <cjs (a] NetBSD.org>
Scope:		Entire tree.
Notes:

Branch:		eeh-paddr_t
Description:	?
Status:		?
Start Date:
End Date:
Base Tag:	eeh-paddr_t-base
Maintainer:	Eduardo Horvath <eeh (a] NetBSD.org>
Scope:		kernel
Notes:

Branch:		fvdl-softdep
Description:	FFS soft dependencies
Status:		?Terminated
Start Date:
End Date:
Base Tag:	fvdl-softdep-base
Maintainer:	Frank van der Linden <fvdl (a] NetBSD.org>
Scope:		kernel
Notes:

Branch:		gehenna-devsw
Description:	auto-generation of devsw table
Status:		Terminated
Start Date:	16 May 2002
End Date:	6 Sep 2002
Base Tag:	gehenna-devsw-base
Maintainer:	MAEKAWA Masahide <gehenna (a] NetBSD.org>
Scope:		syssrc
Notes:		The goal is to get rid of the existing device switch tables in
		port-dependent conf.c and to generate them dynamically by
		config(8).

Branch:		gmcgarry_ctxsw
Description:	Separate scheduler from context-switch code
Status:		Active
Start Date:	18 December 2002
End Date:
Base Tag:	gmcgarry_ctxsw_base
Maintainer:	Gregory McGarry <gmcgarry (a] NetBSD.org>
Scope:		kernel
Notes:		Removing knowledge of the schedular and its run queues
		from the machine-dependent context switch code is the
		first step in cleaning up the scheduler.  It is necessary
		for the newlock branch, making the scheduler SMP friendly,
		adding real-time scheduler extensions, and reducing the
		number of code paths for LWP and proc switching.

Branch:		gmcgarry_ucred
Description:	Integrate and encapsulate user credentials
Status:		Active
Start Date:	18 December 2002
End Date:
Base Tag:	gmcgarry_ucred_base
Maintainer:	Gregory McGarry <gmcgarry (a] NetBSD.org>
Scope:		kernel
Notes:		merge pcred and ucred and poolify

Branch:		is-newarp
Description:	?
Status:		?
Start Date:
End Date:
Base Tag:	is-newarp-base
Maintainer:	Ignatios Souvatzis <is (a] NetBSD.org>
Scope:		kernel
Notes:


Branch:		kame
Description:	KAME Project
Status:		Dormant
Start Date:	28 Jun 1999
End Date:
Base Tag:
Maintainer:	Jun-ichiro itojun Hagino <itojun (a] NetBSD.org>
Scope:		kernel
Notes:		http://www.kame.net
		Used for "reference" purposes for early part of KAME
		integration effort.  The branch is not actively used, as I
		(itojun) use patch(1) and diff(1) for the KAME syncs.

Branch:		kenh-if-detach
Description:	Interface detach support.
Status:		?
Start Date:
End Date:
Base Tag:	kenh-if-detach-base
Maintainer:	Ken Hornstein <kenh (a] NetBSD.org>
Scope:		kernel
Notes:

Branch:		kqueue
Description:	kqueue kernel event notification mechanism (from FreeBSD)
Status:		Terminated; merged to -current
Start Date:	Tue Jul 10 23:08:38 EST 2001
End Date:	Tue Oct 24 09:14:14 GMT 2002
Base Tag:	kqueue-base
Maintainer:	Jaromir Dolecek <jdolecek (a] NetBSD.org>
Scope:		kernel, libc/sys, share/man/man9, usr.bin/fstat
Notes:		Integration of FreeBSD's kqueue(2) mechanism, with various
		local internal changes to better suit NetBSD, and
		enhancements such as looking up filters by name or
		number, and dynamic registration of "user" filters.
		The work is complete as is, but is awaiting more
		feedback from various kernel gurus before going mainline.

Branch:		marc-pcmcia
Description:	PCMCIA support
Status:		Terminated; merged to -current
Start Date:
End Date:
Base Tag:	marc-pcmcia-base, marc-pcmcia-bp
Maintainer:	Marc Horowitz <marc (a] NetBSD.org>
Scope:		kernel
Notes:

Branch:		minoura_x68k_bus_h
Description:	bus_space(9) and bus_dma(9) implementation for x68k
Status:		Terminated; merged to -current
Start Date:	23 Dec 1998
End Date:	16 Mar 1999
Base Tag:	minoura_x68k_bus_h-base
Maintainer:	Minoura Makoto <minoura (a] NetBSD.org>
Scope:		sys/arch/x68k
Notes:

Branch:		minoura-xpg4dl
Description:	Citrus Project locale subsystem
Status:		Terminated; (partly) merged to -current
Start Date:	28 March 2000
End Date:
Base Tag:	minoura-xpg4dl-base
Maintainer:	Minoura Makoto <minoura (a] NetBSD.org>
Scope:		basesrc, syssrc, sharesrc
Notes:		Citrus Project is developing dynamically-loadable, codeset-
		independent locale subsystem.  Part of the implementation
		(LC_CTYPE) called XPG4DL is now integrated to -current.

Branch:		mrg-vm-swap
Description:	?
Status:		?
Start Date:
End Date:
Base Tag:	?
Maintainer:	Matthew R. Green <mrg (a] NetBSD.org>
Scope:		kernel
Notes:

Branch:		nathanw_sa
Description:	Scheduler activations
Status:		Active
Start Date:	5 March 2001
End Date:	18 January 2003
Base Tag:	nathanw_sa_base
Maintainer:	Nathan Williams <nathanw (a] NetBSD.org>
Scope:		kernel, libc, libkvm, libpthread, libpthread_dbg, include, 
		bin/ps usr.bin/systat usr.bin/top usr.bin/w
		gnu/dist/toolchain/gdb gnu/usr.bin/gdb

Notes:		The idea of scheduler activations is described in the
		classic paper by Anderson et al., in ACM Transactions
		a on Computer Systems volume 10 issue 1 (1992),which
		can be found at
		http://www.acm.org/pubs/citations/journals/tocs/1992-10-1/p53-anderson/
		Many ideas in the implementation are based on the
		implementation of scheduler activations added to Mach
		3.0 and described by Davis et al. in the University of
		Washington CS tech report 92-08-93, which can be found
		at
		ftp://ftp.cs.washington.edu/tr/1992/08/UW-CSE-92-08-03.PS.Z

		My USENIX paper on the subject can be found at
		http://web.mit.edu/nathanw/www/usenix/

		Please consult with the maintainer before committing
		to this branch.
		Other tags starting with nathanw_sa reserved for
		branch management and are not guaranteed to be stable.

		Trunk tagged with "nathanw_sa_before_merge" prior to
		merging branch down to trunk.  Branch tagged with
		"nathanw_sa_end" to indicate the ending revision of
		the branch.

Branch:		newlock
Description:	New locking primitives, based on Solaris's
Status:		Active
Start Date:	March 9, 2002
End Date:
Base Tag:	newlock-base
Maintainer:	Jason R. Thorpe <thorpej (a] NetBSD.org>
Scope:		Kernel

Notes:		The goal is to replace the existing lockmgr() and
		simple_lock() based locking mechanisms with the
		primitives found in Solaris: mutexes and rwlocks.

Branch:		perseant-lfsv2
Description:	LFS incompatible on-disk data structure changes
Status:		Terminated
Start Date:	27 June 2001
End Date:	16 July 2001
Base Tag:	perseant-lfsv2-base
Maintainer:	Konrad Schroder <perseant (a] NetBSD.org>
Scope:		basesrc/{sbin/*lfs,libexec/lfs_cleanerd,usr.sbin/dumplfs}, syssrc/sys/ufs
Notes:		This branch should be short-lived, I expect to merge as soon
		as the data structures required for unremove are in and tested.

Branch:	  	pkgviews
Description:  	package views, enabling multiple conflicting packages to co-exist
Status:		Active
Start Date:	22 July 2002
End Date:
Base Tag:	pkgviews
Maintainer:	Alistair Crooks <agc (a] NetBSD.org>
Scope:		pkgsrc, basesrc/usr.sbin/pkg_install
Notes:		A more flexible infrastructure for third-party packages by
		allowing multiple conflicting packages and versions to co-exist
		within the same tree

Branch:		sommerfeld_i386mp_1
Description:	Multiprocessor support for i386 using Intel MP BIOS.
Status:		Terminated; merged to -current
Start Date:	21 Feb 2000
End Date:	01 Oct 2002
Base Tag:	sommerfeld_i386mpbase_1
Maintainer:	Bill Sommerfeld <sommerfeld (a] NetBSD.org>
Scope:		sys/arch/i386
Notes:
		Code committed to the branch has booted to multiuser 
		on at least one system.

		Not guaranteed to compile against mainline since -current
		may have changed incompatibly with the last branch update;
		use "cvs update -D" to roll-back the rest of the tree to match.

		Please get explicit permission from the maintainer 
		before each commit, or your changes will be backed out.
		Other tags starting with sommerfeld_ are private to 
		the developer and are guaranteed to be unstable.
		Only the maintainer should move tags.

		Note that this branch uses a DIFFERENT scheme for 
		synching with the mainline.  the maintainer uses some private
		scripts for keeping them in synch; if you make commits 
		to the branch to "resynchronize" things, you'll
		probably do it wrong; instead, ask the maintainer to
		resynchronize things.

		See sys/arch/i386/TODO on the branch for a list of known
		issues with the branch.

Branch:		thorpej-devvp
Description:	replace dev_t with struct vnode * in devsw entry points
Status:		Active
Start Date:	Sep 6 2001
End Date:
Base Tag:	thorpej-devvp-base
Maintainer:	Jason Thorpe <thorpej (a] NetBSD.org>
Scope:		syssrc
Notes:		Kernels built from this branch are not expected
		to function correctly at this time.

		Ports known to compile on this branch:
			alpha
			i386

Branch:		thorpej-mips-cache
Description:	overhaul MIPS cache support code
Status:		Terminated; merged to -current
Start Date:	Oct 23 2001
End Date:	Nov 14 2001
Base Tag:	thorpej-mips-cache-base
Scope:		syssrc
Notes:		This branch needs more debugging, testing, and more
		ports need to be converted to the new world order.

		The following processors have had cache ops
		written:

			* R2000/R3000 (cache_r3k) -- light testing,
			  needs to be beat on a lot more to make
			  sure it's working.

			* R4000/R4400 (cache_r4k) -- mhitch (a] NetBSD.org
			  tracked down a bug, which has been fixed.

			  Confirmed working on R4000-with-L2.

			  Confirmed working on R4400-no-L2 and
			  R4400-with-L2.

			* R4600/R5000 (cache_r5k) -- shin (a] NetBSD.org
			  has committed fixes to this code.

			  Confirmed working on R4600 v2 (SGI IP-22 with
			  no SysAD L2 cache).

			  Confirmed working on RM5260 (Algorithmics P-5064).

			* TX39 (cache_tx39) -- uch (a] NetBSD.org has
			  committed fixes to this code.  Awaiting
			  confirmation that it is working properly.

			* R5900 (cache_r5900) -- uch (a] NetBSD.org has
			  written this code and tested it on a
			  PlayStation 2.

		The following ports have been updated to compile (and
		use optimized-for-processor bus_dma routines).  Those
		that have been tested and work are marked with [WORKING].

			* algor		[WORKING]

			* arc		[WORKING]

			* pmax		[WORKING]

			* playstation2	[WORKING]
					Needs optimized bus_dmamap_sync().

			* hpcmips	[need verification that this is working]
					Needs optimized bus_dmamap_sync().

			* sgimips	[WORKING]
					Needs optimized bus_dmamap_sync().

			* cobalt	[need testing]

			* mipsco	[need testing]

			* newsmips	[need testing]

Branch:		thorpej_scsipi
Description:	SCSI/ATAPI midlayer rewrite.
Status:		Terminated; merged to -current
Start Date:
End Date:	Apr 25 2001
Base Tag:	thorpej_scsipi_base, thorpej_scsipi_nbase
Maintainer:	Manuel Bouyer <bouyer (a] NetBSD.org>,
		Jason Thorpe <thorpej (a] NetBSD.org>
Scope:		syssrc
Notes:		When a change from -current is pulled up please move the
		thorpej_scsipi_base tag to the revision you're syncing with.
		thorpej_scsipi_nbase is private to maintainer (only
		used when syncing the whole branch with HEAD).
		Just before the merge, syssrc has been tagged with
		thorpej_scsipi_beforemerge

Branch:		thorpej-signal
Description:	?
Status:		?
Start Date:
End Date:
Base Tag:	thorpej-signal-base
Maintainer:	Jason Thorpe <thorpej (a] NetBSD.org>
Scope:		kernel
Notes:

Branch:		thorpej-setroot
Description:	?
Status:		Terminated; merged to -current
Start Date:
End Date:
Base Tag:
Maintainer:	Jason Thorpe <thorpej (a] NetBSD.org>
Scope:		kernel
Notes:


Branch:		wrstuden-devbsize
Description:	Modify buffer cache to deal with different devices having
		different block sizes. Also DEV_BSIZE would go away.
Status:		Terminated
Start Date:	Aug or Sept 1999
End Date:	1 Apr 2000
Base tag:	wrstuden-devbsize-base
Maintainer:	Bill Studenmund <wrstuden (a] NetBSD.org>
Scope:		kernel
Notes:		No longer active due to lack of time, and introduction
		of UBC. In terms of UBC, the primary cache for
		file data is the VM cache, which needs to operate
		in terms of VM pages. As no existing device has native
		pages the same size as our VM pages, there already is
		a mapping going on between the VM system and the
		underlying blocks. So it would be easier and cleaner
		to adjust that to deal w/ different block sizes.
		Also with UBC, all i/o is in terms of bytes at an offset
		with a certain length, so the exact block size isn't a big
		deal.

		Any other wrstuden-devbsize tag may (and should) go away.



# Other:

Branch:		magnum
Description:	?
Status:		?
Start Date:
End Date:
Base Tag:	magnum-base
Maintainer:	?
Scope:		kernel
Notes: