BRANCHES revision 1.295 1 # $NetBSD: BRANCHES,v 1.295 2010/10/21 08:45:29 uebayasi 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: mycroft
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: Terminated
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: Terminated
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: Terminated
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: Terminated
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 Branch: netbsd-5
208 Description: The NetBSD 5 release branch
209 Status: Active
210 Start Date: 31 Oct 2008
211 End Date:
212 Base Tag: netbsd-5-base
213 Maintainer: 5.0 Release Engineering <releng-5 (a] NetBSD.org>
214 Scope: Entire tree. (src + xsrc)
215 Notes:
216 Commits restricted to Release Engineering.
217
218 Branch: netbsd-5-0
219 Description: Tracking security/critical fixes for NetBSD 5.0
220 Status: Active
221 Start Date: 29 Apr 2009
222 End Date:
223 Base Tag: netbsd-5-0-RELEASE
224 Maintainer: 5.0 Release Engineering <releng-5 (a] NetBSD.org>
225 Scope: Entire tree. (src + xsrc)
226 Notes: Commits restricted to Release Engineering.
227
228 ########################################################################
229 # Individual developers' branches (Active/Dormant):
230 ########################################################################
231
232 Branch: ad-audiomp
233 Description: Add MP locking to the audio drivers
234 Status: Terminated
235 Start Date: 28 February 2007
236 End Date: 7 December 2008
237 Base Tag: ad-audiomp-base
238 Maintainer: Andrew Doran <ad (a] NetBSD.org>
239 Scope: kernel
240 Notes: Making the audio drivers MP safe is necessary before efforts
241 can be made to make the VM system MP safe. About 1/2 of the
242 drivers are converted, the remaining 1/2 need more changes.
243
244 As of import this is snapshot of work in progress and so
245 may not compile; in particular the midi changes are very
246 much "in progress". The audio component has been tested
247 and verified to work with emuxki and auvia. There may
248 be a locking issue in the ac97 code at boot.
249
250 The are two locks per device instance, an ISR lock and
251 a character device lock. The ISR lock replaces calls to
252 splaudio()/splx(), and will be held across calls to device
253 methods which were called at splaudio() before (e.g.
254 trigger_output). The character device lock is held across
255 calls to nearly all of the methods, excluding some only
256 used for initialization, e.g. get_locks. This needs to be
257 documented at merge time.
258
259 To test on a multi way x86 system, search for "mpsafe" in
260 x86/x86/intr.c and change IPL_SCHED to IPL_AUDIO. Run a job
261 that will acquire the ISR lock (depends on the hardware, but
262 "while true; do mixerctl -a > /dev/null; done" may suffice).
263 Play audio, run lockstat and verify that that there is
264 contention on the ISR lock.
265
266 Branch: ad-audiomp2
267 Description: Add MP locking to the audio drivers
268 Status: Active
269 Start Date: 7 December 2008
270 End Date:
271 Base Tag: ad-audiomp2-base
272 Maintainer: Andrew Doran <ad (a] NetBSD.org>
273 Scope: kernel
274 Notes: Ressurect ad-audiomp, make the audio drivers MP safe.
275
276 Branch: bjh21-hydra
277 Description: Simtec Hydra support and ARM SMP in general
278 Status: Dormant
279 Start Date: 18 Oct 2002
280 End Date:
281 Base Tag: bjh21-hydra-base
282 Maintainer: Ben Harris <bjh21 (a] NetBSD.org>
283 Scope: sys/arch/arm sys/arch/acorn32
284 Notes: This code was on a branch because it involves changes to
285 cpuswitch.S which would otherwise make merging the
286 nathanw_sa branch difficult.
287
288 Branch: chris-arm-intr-rework
289 Description: Rework arm interrupt handling code
290 Status: Dormant
291 Start Date: 11 Aug 2007
292 End Date:
293 Base Tag: chris-arm-intr-rework-base
294 Maintainer: Chris Gilbert <chris (a] NetBSD.org>
295 Scope: sys/arch/arm sys/arch/cats (other arm archs to follow)
296 Notes: Rework arm interrupt code to provide a shared set of interrupt
297 routines, and allow improvements to be shared across all arm
298 based hardware.
299
300 Branch: gmcgarry_ucred
301 Description: Integrate and encapsulate user credentials
302 Status: Dormant
303 Start Date: 18 December 2002
304 End Date:
305 Base Tag: gmcgarry_ucred_base
306 Maintainer: Gregory McGarry <gmcgarry (a] NetBSD.org>
307 Scope: kernel
308 Notes: merge pcred and ucred and poolify
309
310 Branch: hpcarm-cleanup
311 Description: Fix build problems for hpcarm
312 Status: Active
313 Start Date: 31 July 2007
314 End Date:
315 Base Tag: hpcarm-cleanup-base
316 Maintainer: Robert Swindells <rjs (a] NetBSD.org>
317 Scope: kernel
318 Notes: Modify SA11x0 interrupt code to match PXA2x0 equivalent.
319
320 Branch: itohy-usb1
321 Description: USB stack overhaul, mostly DMA related
322 Status: Active
323 Start Date: 22 May 2007
324 End Date:
325 Base Tag: itohy-usb1-base
326 Maintainer: ITOH Yasufumi <itohy (a] NetBSD.org>
327 Scope: kernel
328 Notes: To check out the kernel source tree,
329 1. check out checkout script
330 cvs checkout -ritohy-usb1 src/sys/dev/usb/filelist
331 2. update files in the branch
332 sh -e src/sys/dev/usb/filelist
333
334 Branch: jym-xensuspend
335 Description: Implement xm save/restore/migrate for NetBSD domU
336 Status: Active
337 Start Date: 2009-02-08
338 End Date:
339 Base Tag: jym-xensuspend-base
340 Maintainer: Jean-Yves Migeon <jym (a] NetBSD.org>
341 Scope: kernel
342 Notes: This branch contains the code required to support the Xen
343 save/restore/migrate facilities. It affects domU frontend
344 drivers (xbd, xennet, xencons, hypervisor), autoconf(9)
345 machinery, as well as MD code (mostly pmap(9)).
346
347 Branch: kame
348 Description: KAME Project
349 Status: Dormant
350 Start Date: 28 Jun 1999
351 End Date:
352 Base Tag:
353 Maintainer: Jun-ichiro itojun Hagino <itojun (a] NetBSD.org>
354 Scope: kernel
355 Notes: http://www.kame.net
356 Used for "reference" purposes for early part of KAME
357 integration effort. The branch is not actively used, as I
358 (itojun) use patch(1) and diff(1) for the KAME syncs.
359
360 Branch: keiichi-mipv6
361 Description: Developing Mobile IPv6 function
362 Status: Active
363 Start Date: 21 Feb 2008
364 End Date:
365 Base Tag: keiichi-mipv6-base
366 Maintainer: Keiichi Shima <keiichi (a] netbsd.org>
367 Scope: sys, sbin, libc/net, distrib/sets, share/man/
368 Notes: http://www.mobileip.jp/
369 Work on developing Mobile IPv6/NEMO BS functions and
370 related MIPv6 based advanced functions on NetBSD.
371 Please consult keiichi for joining this activity.
372
373 Branch: kent-audio2
374 Description: In-kernel audio mixer
375 Status: Active
376 Start Date: Sun Jan 16 2005
377 End Date:
378 Base Tag: kent-audio2-base
379 Maintainer: TAMURA Kent <kent (a] NetBSD.org>
380 Scope: kernel (audio device drivers)
381 Notes: http://mail-index.netbsd.org/tech-kern/2004/12/03/0007.html
382 Please consult with the maintainer before committing
383 to this branch.
384 This branch is not expected to be compilable yet.
385
386 Branch: matt-timespec
387 Description: Convert the kernel to struct timespec as its primary time
388 storage mechanism.
389 Status: Inactive
390 Start Date: 2005-02-19
391 End Date:
392 Base Tag:
393 Maintainer: Matt Thomas <matt (a] NetBSD.org>
394 Scope: kernel
395 Notes:
396
397 Branch: matt-mips64
398 Description: Rototill the mips code to support LP64 mips and N32/N64 ABIs
399 Status: Mostly dead
400 Start Date: 2007-07-17
401 End Date:
402 Base Tag: matt-mips64-base
403 Maintainer: Matt Thomas <matt (a] NetBSD.org>
404 Scope: kernel & userland
405 Notes:
406
407 Branch: matt-nb5-mips64
408 Description: Rototill the mips code to support LP64 mips and N32/N64 ABIs
409 Status: Active
410 Start Date: 2009-08-01
411 End Date:
412 Base Tag: netbsd-5-0-1-RELEASE
413 Maintainer: Matt Thomas <matt (a] NetBSD.org>
414 Scope: kernel & userland
415 Notes:
416
417 Branch: mjf-devfs2
418 Description: device file system supporting dynamic device nodes
419 Status: Active
420 Start Date: 21 February 2008
421 End Date:
422 Base Tag: mjf-devfs2-base
423 Maintainer: Matt Fleming <mjf (a] NetBSD.org>
424 Scope: kernel and userland
425 Notes: This branch will move away from the static device nodes that
426 are created with MAKEDEV scripts and allow nodes to be created
427 and removed dynamically as devices are attached and detached
428 from the machine.
429
430 Branch: mjf-ufs-trans
431 Description: file system transactions for ufs
432 Status: Active
433 Start Date: 12 March 2007
434 End Date:
435 Base Tag: mjf-ufs-trans-base
436 Maintainer: Matt Fleming <mjf (a] NetBSD.org>
437 Scope: kernel
438 Notes:
439
440 Branch: nick-net80211-sync
441 Description: sync of net80211 with FreeBSD
442 Status: Active
443 Start Date: 21 February 2008
444 End Date:
445 Base Tag: nick-net80211-base
446 Maintainer: Nick Hudson <skrll (a] NetBSD.org>
447 Scope: sys/
448 Notes: Sync'ing net80211 with FreeBSD and drivers update. The branch is
449 currently only the kernel, but will likely extend to some userland
450 areas.
451
452 Branch: pkgviews
453 Description: package views, enabling multiple conflicting packages to co-exist
454 Status: Active
455 Start Date: 22 July 2002
456 End Date:
457 Base Tag: pkgviews
458 Maintainer: Alistair Crooks <agc (a] NetBSD.org>
459 Scope: pkgsrc, basesrc/usr.sbin/pkg_install
460 Notes: A more flexible infrastructure for third-party packages by
461 allowing multiple conflicting packages and versions to co-exist
462 within the same tree
463
464 Branch: rmind-uvmplock
465 Description: Reorganize locking in UVM for pmap(9)
466 Status: Active
467 Start Date: 15 March 2010
468 End Date:
469 Base Tag: rmind-uvmplock-base
470 Maintainer: Mindaugas Rasiukevicius <rmind (a] netbsd.org>
471 Scope: Kernel
472 Notes: Goals:
473
474 - Reorganize locking in UVM and serialize pmap(9) operations
475 on same page(s). New lock order: [vmpage-lock] -> pmap-lock.
476 Based on the patch from ad@.
477 - Simplify locking in pmap(9) modules by removing P->V locking.
478 - Use mutex_obj(9) on vmobjlock (and thus vnode_t::v_interlock)
479 to share locks among UVM objects where necessary.
480 - Optimize pmap_remove() with tracking in struct vm_map_entry.
481 - Unify /dev/mem et al in MI code and provide required locking.
482
483 Branch: rpaulo-netinet-merge-pcb
484 Description: merge in6pcb with inpcb
485 Status: Dormant
486 Start Date: Wed Feb 01 2006
487 End Date:
488 Base Tag: rpaulo-netinet-merge-pcb-base
489 Maintainer: Rui Paulo <rpaulo (a] NetBSD.org>
490 Scope: src/sys
491 Notes: No longer active due to the lack of time. If you plan to
492 continue this branch, sys/netinet/in_pcb.h already contains
493 the proposed structure layout (which was roughly discussed
494 in the tech-net mailing list).
495 I also defined INP_*() macros to mimicate FreeBSD's inpcb
496 locking style, but currently they do nothing and are not
497 yet called at the correct places (needs discussion about
498 kernel fine-grained locking).
499 To continue this branch, one needs to read all the relevant
500 inpcb/in6pcb source files and change the function names,
501 structure names, structure fields according to the new
502 layout (in6pcb is gone).
503 Don't try to build a kernel from this branch because it won't
504 work. The missing pieces required to do a complete build
505 were not committed because they were incomplete and generated
506 panics.
507 You shouldn't need to worry about KAME syncs because
508 they did most of them by now.
509 After the work is done, you are required to test the branch
510 (before the merge to -current) with an interop IPv6 test.
511 More info at: http://www.tahi.org/
512
513 Branch: wrstuden-fixsa
514 Description: Fix a number of issues present with Scheduler Activations.
515 Status: Active
516 Start Date: 15 May 2007
517 End Date:
518 Base Tag: wrstuden-fixsa-base
519 Maintainer: Bill Stouder-Studenmund <wrstuden (a] NetBSD.org>
520 Scope: src, though all the interesting stuff is in the kernel
521 or lib/libpthread or maybe gdb.
522 Notes: This branch is based off of the netbsd-4 branch!
523 This branch is intended to stage improvements for the
524 Scheduler Activations system for NetBSD 4. Improvements
525 include not allocating memory while preparing to tsleep(),
526 reducing inappropriate upcall delivery (hopefully also
527 eliminating the need to mlock stacks), and being
528 able to pthread_kill() running threads. At this date,
529 most goals have been achieved. This branch also includes
530 fixes to gdb to support working with threaded apps.
531
532 Branch: wrstuden-revivesa
533 Description: Fix a number of issues present with Scheduler Activations.
534 Status: Active
535 Start Date: 10 May 2008
536 End Date:
537 Base Tag: wrstuden-revivesa-base
538 Maintainer: Bill Stouder-Studenmund <wrstuden (a] NetBSD.org>
539 Scope: src, though all the interesting stuff is in the kernel
540 Notes: This branch is intended to revive Scheduler Activations
541 in -current in the 5.0 era. This branch's main goal is
542 to re-add syscall compatability so that SA-based libpthread
543 programs can run with a -current kernel. 1:1 threading will
544 remain the NetBSD-default. This branch will re-add necessary
545 upcall support, and will also serve as a chance to clean
546 out cruft that had accumulated in the implementation over
547 time.
548
549 Branch: yamt-kmem
550 Description:
551 - separate kernel va allocation from kernel fault handling.
552 - make kmem_alloc interrupt-safe.
553 Status: Active
554 Start Date: Sun Dec 9 2007
555 End Date:
556 Base Tag: yamt-kmem-base3
557 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
558 Scope: src/sys (src/common is tagged but not branched)
559 Notes:
560 todo:
561 - investigate if PMAP_PREFER equivalent can be done
562 with vmem_xalloc. find a tester with hardware for it.
563 - g/c replaced code, including kmapent and malloc.
564 - consider to remove other submaps. eg. mb_map
565
566 Branch: yamt-nfs-mp
567 Description: make nfs client mp-safe
568 Status: Active
569 Start Date: Sun Apr 27 2008
570 End Date:
571 Base Tag: yamt-nfs-mp-base11
572 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
573 Scope: src/sys (src/common is tagged but not branched)
574 Notes:
575
576 Branch: reinoud-bufcleanup
577 Description: implement and evaluate struct buf usage cleanup strategies.
578 Ideas currently in mind (preference for b):
579 a)
580 1. use of bio_ops per buffer.
581 2. allow chaining/overloading of functions in bio_ops
582 and provide some private context.
583 3. extend the bio_ops with commonly used functionality
584 like pending action counting, custom context passing,
585 last minute processing of buffer data, buffer cache
586 etc.
587 4. investigate the use of the kcont()
588 continuation-passing framework for async io
589 completion notification for bufs
590 ...
591 b)
592 1. all sequencing use of B_CALL replaced by
593 device-threads, if possible generic code around BUFQ
594 2. possibly use kcont() for async IO finished signaling
595 3. counter of pending and queued actions requestable
596 by IOCTL interface?
597 4. implement `last minute buffer fixup' calls and maybe
598 even finished I/O calls as vnode operations
599 ...
600 Status: Active
601 Start Date: Thu Mar 15 2007
602 End Date:
603 Base Tag: reinoud-bufcleanup-base
604 Maintainer: Reinoud Zandijk <reinoud (a] NetBSD.org>
605 Scope: src/sys and src/common
606 Notes: Used as experiment sandbox and if successful hopefully one day
607 to be integrated.
608
609 ########################################################################
610 # Individual developers' branches (Terminated):
611 ########################################################################
612
613 Branch: bouyer-scsipi
614 Description: Integration of atapi support
615 Status: Terminated
616 Start Date:
617 End Date:
618 Base Tag:
619 Maintainer: Manuel Bouyer <bouyer (a] NetBSD.org>
620 Scope: kernel
621 Notes: Superseded by thorpej_scsipi
622
623 Branch: bouyer-xen2
624 Description: update xen port to xen 2.0, with support for domain0 operations
625 Status: Terminated
626 Start Date: Dec 13 2004
627 End Date: Mar 10 2005
628 Base Tag: netbsd-2-base
629 Maintainer: Manuel Bouyer <bouyer (a] NetBSD.org>
630 Scope: src/sys/arch/xen
631 Notes:
632
633 Branch: bouyer-xenamd64
634 Description: add amd64 support to Xen and rework some parts to share more code between Xen and others
635 Status: Terminated
636 Start Date: 18 Oct 2007
637 End Date: 22 Nov 2007
638 Base Tag: bouyer-xenamd64-base
639 Maintainer: Manuel Bouyer <bouyer (a] NetBSD.org>
640 Scope: kernel
641 Notes:
642
643 Branch: bouyer-xeni386
644 Description: switch xen on i386 to the x86 pmap and the xen/x86/x86_xpmap.c bootstrap, and add i386 PAE support
645 Status: Terminated
646 Start Date: 10 Dec 2007
647 End Date: 23 Jan 2008
648 Base Tag: bouyer-xeni386-base
649 Maintainer: Manuel Bouyer <bouyer (a] NetBSD.org>
650 Scope: kernel
651 Notes:
652
653 Branch: chap-midi
654 Description: Renovation of MIDI support
655 Status: Terminated; merged to -current
656 Start Date: 19 May 2006
657 End Date: 30 Jun 2006
658 Base Tag: chap-midi-base
659 Maintainer: Chapman Flack <chap (a] NetBSD.org>
660 Scope: sys, share/man, usr.bin
661 Notes:
662
663 Branch: chs-ubc
664 Description: Unified Buffer Cache
665 Status: Terminated
666 Start Date:
667 End Date:
668 Base Tag: chs-ubc-base
669 Maintainer: Chuck Silvers <chs (a] NetBSD.org>
670 Scope: kernel
671 Notes:
672
673 Branch: chs-ubc2
674 Description: Unified Buffer Cache
675 Status: Terminated; merged to -current
676 Start Date:
677 End Date:
678 Base Tag: chs-ubc2-base, chs-ubc2-newbase
679 Maintainer: Chuck Silvers <chs (a] NetBSD.org>
680 Scope: kernel
681 Notes:
682
683 Branch: cjs-build-against-obj-dir
684 Description: ?
685 Status: ?
686 Start Date:
687 End Date:
688 Base Tag:
689 Maintainer: Curt Sampson <cjs (a] NetBSD.org>
690 Scope: Entire tree.
691 Notes:
692
693 Branch: cube-autoconf
694 Description: Renovate autoconf(9) API
695 Status: Terminated; abandoned
696 Start Date: 11 Dec 2007
697 End Date:
698 Base Tag: cube-autoconf-base
699 Maintainer: Quentin Garnier <cube (a] NetBSD.org>
700 Scope: kernel usr.bin/config (and some other userland bits)
701 Notes: Address a number of issues the current autoconf(9) API has.
702
703 Branch: eeh-paddr_t
704 Description: use separate types for virtual vs. physical addresses
705 Status: Terminated; merged to -current
706 Start Date:
707 End Date:
708 Base Tag: eeh-paddr_t-base
709 Maintainer: Eduardo Horvath <eeh (a] NetBSD.org>
710 Scope: kernel
711 Notes: This is needed to support 32-bit kernels on sparc64.
712
713 Branch: elad-kernelauth
714 Description: Native NetBSD implementation of Apple's kernel authorization
715 based on TN2127. This is a "clean-room" implementation to
716 avoid any licensing issues.
717 Status: Terminated; merged to -current
718 Start Date: Tue Mar 7 2006
719 End Date: Mon May 15 2006
720 Base Tag: elad-kernelauth-base
721 Maintainer: Elad Efrat <elad (a] NetBSD.org>
722 Scope: src/sys, src/share/man/man9/Makefile,
723 src/share/man/man9/kauth.h, src/distrib/sets/lists/comp/mi
724 Notes:
725
726 Branch: fvdl-softdep
727 Description: FFS soft dependencies
728 Status: Terminated; merged to -current
729 Start Date:
730 End Date:
731 Base Tag: fvdl-softdep-base
732 Maintainer: Frank van der Linden <fvdl (a] NetBSD.org>
733 Scope: kernel
734 Notes:
735
736 Branch: gehenna-devsw
737 Description: auto-generation of devsw table
738 Status: Terminated
739 Start Date: 16 May 2002
740 End Date: 6 Sep 2002
741 Base Tag: gehenna-devsw-base
742 Maintainer: MAEKAWA Masahide <gehenna (a] NetBSD.org>
743 Scope: syssrc
744 Notes: The goal is to get rid of the existing device switch tables in
745 port-dependent conf.c and to generate them dynamically by
746 config(8).
747
748 Branch: haad-dm
749 Description: Add support for LVM to NetBSD
750 Status: Terminated; merged with -current
751 Start Date: 7 July 2008
752 End Date: 19 December 2008
753 Base Tag: haad-dm-base
754 Maintainer: Adam Hamsik <haad (a] NetBSD.org>
755 Scope: kernel
756 Notes: LVM support is based on Linux lvm2tools,
757 libdevmapper library and NetBSD device-mapper
758 driver.
759
760 Branch: is-newarp
761 Description: ARP for non-Ethernet
762 Status: Terminated; merged before NetBSD 1.3
763 Start Date: 1996/10/13
764 End Date: 1997/03/15
765 Base Tag: is-newarp-base
766 Maintainer: Ignatios Souvatzis <is (a] NetBSD.org>
767 Scope: kernel
768 Notes:
769
770 Branch: jmcneill-pm
771 Description: Power management framework overhaul, ACPI improvements
772 Status: Terminated; merged before NetBSD 5.0
773 Start Date: 3 Aug 2007
774 End Date: 9 Dec 2007
775 Base Tag: jmcneill-pm-base
776 Maintainer: Jared D. McNeill <jmcneill (a] NetBSD.org>
777 Scope: kernel
778 Notes:
779
780 Branch: kenh-if-detach
781 Description: Interface detach support.
782 Status: ?
783 Start Date:
784 End Date:
785 Base Tag: kenh-if-detach-base
786 Maintainer: Ken Hornstein <kenh (a] NetBSD.org>
787 Scope: kernel
788 Notes:
789
790 Branch: kent-audio1
791 Description: Audio converter pipeline
792 Status: Terminated; merged to -current
793 Start Date: Tue Dec 7 2004
794 End Date: Tue Jan 11 2005
795 Base Tag: kent-audio1-base
796 Maintainer: TAMURA Kent <kent (a] NetBSD.org>
797 Scope: kernel (audio device drivers)
798 Notes: http://mail-index.netbsd.org/tech-kern/2004/12/03/0007.html
799 Please consult with the maintainer before committing
800 to this branch.
801
802 Branch: kqueue
803 Description: kqueue kernel event notification mechanism (from FreeBSD)
804 Status: Terminated; merged to -current
805 Start Date: Tue Jul 10 23:08:38 EST 2001
806 End Date: Tue Oct 24 09:14:14 GMT 2002
807 Base Tag: kqueue-base
808 Maintainer: Jaromir Dolecek <jdolecek (a] NetBSD.org>
809 Scope: kernel, libc/sys, share/man/man9, usr.bin/fstat
810 Notes: Integration of FreeBSD's kqueue(2) mechanism, with various
811 local internal changes to better suit NetBSD, and
812 enhancements such as looking up filters by name or
813 number, and dynamic registration of "user" filters.
814 The work is complete as is, but is awaiting more
815 feedback from various kernel gurus before going mainline.
816
817 Branch: ktrace-lwp
818 Description: ktrace support for lwp ids.
819 Status: Terminated; merged to -current
820 Start Date: Wed Jul 2 15:27:30 UTC 2003
821 End Date: Sun Dec 11 12:25:29 UTC 2005
822 Base Tag: ktrace-lwp-base
823 Maintainer: Darren Reed <darrenr (a] NetBSD.org>
824 Scope: sys
825 Notes:
826
827 Branch: marc-pcmcia
828 Description: PCMCIA support
829 Status: Terminated; merged to -current
830 Start Date:
831 End Date:
832 Base Tag: marc-pcmcia-base, marc-pcmcia-bp
833 Maintainer: Marc Horowitz <marc (a] NetBSD.org>
834 Scope: kernel
835 Notes:
836
837 Branch: matt-armv6
838 Description: Rototill the arm code to support features present in the
839 v6 of the ARM Architecture. Additionally, clean up things
840 along the way to use common practices.
841 Status: Terminated; merged to -current
842 Start Date: 2007-08-27
843 End Date: 2008-04-27
844 Base Tag: matt-armv6-base
845 Maintainer: Matt Thomas <matt (a] NetBSD.org>
846 Scope: kernel & userland
847 Notes:
848
849 Branch: minoura_x68k_bus_h
850 Description: bus_space(9) and bus_dma(9) implementation for x68k
851 Status: Terminated; merged to -current
852 Start Date: 23 Dec 1998
853 End Date: 16 Mar 1999
854 Base Tag: minoura_x68k_bus_h-base
855 Maintainer: Minoura Makoto <minoura (a] NetBSD.org>
856 Scope: sys/arch/x68k
857 Notes:
858
859 Branch: minoura-xpg4dl
860 Description: Citrus Project locale subsystem
861 Status: Terminated; (partly) merged to -current
862 Start Date: 28 March 2000
863 End Date:
864 Base Tag: minoura-xpg4dl-base
865 Maintainer: Minoura Makoto <minoura (a] NetBSD.org>
866 Scope: basesrc, syssrc, sharesrc
867 Notes: Citrus Project is developing dynamically-loadable, codeset-
868 independent locale subsystem. Part of the implementation
869 (LC_CTYPE) called XPG4DL is now integrated to -current.
870
871 Branch: mjf-devfs
872 Description: device file system supporting dynamic device nodes
873 Status: Terminated
874 Start Date: 12 November 2007
875 End Date: 21 February 2008
876 Base Tag: mjf-devfs-base
877 Maintainer: Matt Fleming <mjf (a] NetBSD.org>
878 Scope: kernel and userland
879 Notes: This branch will move away from the static device nodes that
880 are created with MAKEDEV scripts and allow nodes to be created
881 and removed dynamically as devices are attached and detached
882 from the machine.
883
884 Branch: mrg-vm-swap
885 Description: dynamic swap allocation, swap-to-files support
886 Status: Terminated; abandoned for mrg-vm-swap2
887 Start Date: 12 February 1997
888 End Date: 15 March 1997
889 Base Tag: [none]
890 Maintainer: Matthew R. Green <mrg (a] NetBSD.org>
891 Scope: kernel
892 Notes:
893
894 Branch: mrg-vm-swap2
895 Description: dynamic swap allocation, swap-to-files support
896 Status: Terminated; merged to -current
897 Start Date: 4 May 1997
898 End Date: 12 June 1997
899 Base Tag: mrg-vm-swap2-base
900 Maintainer: Matthew R. Green <mrg (a] NetBSD.org>
901 Scope: kernel
902 Notes:
903
904 Branch: nathanw_sa
905 Description: Scheduler activations
906 Status: Terminated; merged to -current
907 Start Date: 5 March 2001
908 End Date: 18 January 2003
909 Base Tag: nathanw_sa_base
910 Maintainer: Nathan Williams <nathanw (a] NetBSD.org>
911 Scope: kernel, libc, libkvm, libpthread, libpthread_dbg, include,
912 bin/ps usr.bin/systat usr.bin/top usr.bin/w
913 gnu/dist/toolchain/gdb gnu/usr.bin/gdb
914 Notes: The idea of scheduler activations is described in the
915 classic paper by Anderson et al., in ACM Transactions
916 a on Computer Systems volume 10 issue 1 (1992),which
917 can be found at
918 http://www.acm.org/pubs/citations/journals/tocs/1992-10-1/p53-anderson/
919 Many ideas in the implementation are based on the
920 implementation of scheduler activations added to Mach
921 3.0 and described by Davis et al. in the University of
922 Washington CS tech report 92-08-93, which can be found
923 at
924 ftp://ftp.cs.washington.edu/tr/1992/08/UW-CSE-92-08-03.PS.Z
925
926 My USENIX paper on the subject can be found at
927 http://web.mit.edu/nathanw/www/usenix/
928
929 Please consult with the maintainer before committing
930 to this branch.
931 Other tags starting with nathanw_sa reserved for
932 branch management and are not guaranteed to be stable.
933
934 Trunk tagged with "nathanw_sa_before_merge" prior to
935 merging branch down to trunk. Branch tagged with
936 "nathanw_sa_end" to indicate the ending revision of
937 the branch.
938
939 Branch: newlock
940 Description: New locking primitives, based on Solaris's
941 Status: Terminated
942 Start Date: March 9, 2002
943 End Date: February 12, 2007
944 Base Tag: newlock-base
945 Maintainer: Jason R. Thorpe <thorpej (a] NetBSD.org>
946 Scope: Kernel
947 Notes: The goal is to replace the existing lockmgr() and
948 simple_lock() based locking mechanisms with the
949 primitives found in Solaris: mutexes and rwlocks.
950 Superseded by the newlock2 branch.
951
952 Branch: newlock2
953 Description: New locking primitives, based on Solaris's
954 Status: Terminated
955 Start Date: September 9, 2006
956 End Date: February 12, 2007
957 Base Tag: newlock2-base
958 Maintainer: Andrew Doran <ad (a] NetBSD.org>
959 Scope: Kernel
960 Notes: As per the newlock branch, however given the amount of time
961 the original branch has lain dormant, a new one has been
962 created. Goals:
963 - Implement new locking primitives on most-used ports.
964 - Minor locking improvements.
965 - Remove spinlockmgr().
966
967 Branch: nick-csl-alignment
968 Description: Provide correctly aligned __cpu_simple_lock_t for hppa
969 Status: Terminated; merged to -current
970 Start Date: 2007-07-18
971 End Date:
972 Base Tag: nick-csl-alignment-base5
973 Maintainer: Nick Hudson <skrll (a] NetBSD.org>
974 Scope: sys, lib/libpthread, lib/libpthread_dbg
975 Notes:
976
977 Branch: perseant-lfsv2
978 Description: LFS incompatible on-disk data structure changes
979 Status: Terminated
980 Start Date: 27 June 2001
981 End Date: 16 July 2001
982 Base Tag: perseant-lfsv2-base
983 Maintainer: Konrad Schroder <perseant (a] NetBSD.org>
984 Scope: basesrc/{sbin/*lfs,libexec/lfs_cleanerd,usr.sbin/dumplfs}, syssrc/sys/ufs
985 Notes: This branch should be short-lived, I expect to merge as soon
986 as the data structures required for unremove are in and tested.
987
988 Branch: ppcoea-renovation
989 Description: General renovation and cleanup of all OEA PowerPC ports.
990 Status: Terminated; merged to -current
991 Start Date: 30 April 2007
992 End Date: 15 October 2007
993 Base Tag: ppcoea-renovation-base
994 Maintainer: Tim Rightnour <garbled (a] netbsd.org>
995 Scope: src/sys/arch
996 Notes: This branch is for a general cleanup of all OEA-based PowerPC
997 ports. OEA (Operating Environment Architecture) PowerPC refers
998 to the 601, 603, 604, and similar chips. Specifically, not the
999 403/401 and other embedded chips. The general concept is to get
1000 them all compiling, and sharing as much code as possible. All
1001 developers are welcome to commit to this branch.
1002
1003 Branch: thorpej-devvp
1004 Description: replace dev_t with struct vnode * in devsw entry points
1005 Status: Terminated
1006 Start Date: Sep 6 2001
1007 End Date: ???
1008 Base Tag: thorpej-devvp-base
1009 Maintainer: Jason Thorpe <thorpej (a] NetBSD.org>
1010 Scope: syssrc
1011 Notes: Kernels built from this branch are not expected
1012 to function correctly at this time.
1013
1014 Ports known to compile on this branch:
1015 alpha
1016 i386
1017
1018 Branch: peter-altq
1019 Description: New ALTQ framework:
1020 - sync with KAME sources
1021 - share mtag/name mapping functions
1022 - separate altq + pf attachment
1023 Status: Terminated; merged to -current
1024 Start Date: March 16, 2006
1025 End Date: October 12, 2006
1026 Base Tag: peter-altq-base
1027 Maintainer: Peter Postma <peter (a] NetBSD.org>,
1028 Martin Husemann <martin (a] NetBSD.org>,
1029 Matthias Scheler <tron (a] NetBSD.org>
1030 Scope: dist/pf dist/ipf distrib/sets/lists sys usr.sbin/altq
1031 Notes: Only the first item in the description was finished
1032 in this branch.
1033
1034 Branch: sommerfeld_i386mp_1
1035 Description: Multiprocessor support for i386 using Intel MP BIOS.
1036 Status: Terminated; merged to -current
1037 Start Date: 21 Feb 2000
1038 End Date: 01 Oct 2002
1039 Base Tag: sommerfeld_i386mpbase_1
1040 Maintainer: Bill Sommerfeld <sommerfeld (a] NetBSD.org>
1041 Scope: sys/arch/i386
1042 Notes:
1043 Code committed to the branch has booted to multiuser
1044 on at least one system.
1045
1046 Not guaranteed to compile against mainline since -current
1047 may have changed incompatibly with the last branch update;
1048 use "cvs update -D" to roll-back the rest of the tree to match.
1049
1050 Please get explicit permission from the maintainer
1051 before each commit, or your changes will be backed out.
1052 Other tags starting with sommerfeld_ are private to
1053 the developer and are guaranteed to be unstable.
1054 Only the maintainer should move tags.
1055
1056 Note that this branch uses a DIFFERENT scheme for
1057 syncing with the mainline. the maintainer uses some private
1058 scripts for keeping them in sync; if you make commits
1059 to the branch to "resynchronize" things, you'll
1060 probably do it wrong; instead, ask the maintainer to
1061 resynchronize things.
1062
1063 See sys/arch/i386/TODO on the branch for a list of known
1064 issues with the branch.
1065
1066 Branch: thorpej-mips-cache
1067 Description: overhaul MIPS cache support code
1068 Status: Terminated; merged to -current
1069 Start Date: Oct 23 2001
1070 End Date: Nov 14 2001
1071 Base Tag: thorpej-mips-cache-base
1072 Scope: syssrc
1073 Notes: This branch needs more debugging, testing, and more
1074 ports need to be converted to the new world order.
1075
1076 The following processors have had cache ops
1077 written:
1078
1079 * R2000/R3000 (cache_r3k) -- light testing,
1080 needs to be beat on a lot more to make
1081 sure it's working.
1082
1083 * R4000/R4400 (cache_r4k) -- mhitch (a] NetBSD.org
1084 tracked down a bug, which has been fixed.
1085
1086 Confirmed working on R4000-with-L2.
1087
1088 Confirmed working on R4400-no-L2 and
1089 R4400-with-L2.
1090
1091 * R4600/R5000 (cache_r5k) -- shin (a] NetBSD.org
1092 has committed fixes to this code.
1093
1094 Confirmed working on R4600 v2 (SGI IP-22 with
1095 no SysAD L2 cache).
1096
1097 Confirmed working on RM5260 (Algorithmics P-5064).
1098
1099 * TX39 (cache_tx39) -- uch (a] NetBSD.org has
1100 committed fixes to this code. Awaiting
1101 confirmation that it is working properly.
1102
1103 * R5900 (cache_r5900) -- uch (a] NetBSD.org has
1104 written this code and tested it on a
1105 PlayStation 2.
1106
1107 The following ports have been updated to compile (and
1108 use optimized-for-processor bus_dma routines). Those
1109 that have been tested and work are marked with [WORKING].
1110
1111 * algor [WORKING]
1112
1113 * arc [WORKING]
1114
1115 * pmax [WORKING]
1116
1117 * playstation2 [WORKING]
1118 Needs optimized bus_dmamap_sync().
1119
1120 * hpcmips [need verification that this is working]
1121 Needs optimized bus_dmamap_sync().
1122
1123 * sgimips [WORKING]
1124 Needs optimized bus_dmamap_sync().
1125
1126 * cobalt [need testing]
1127
1128 * mipsco [need testing]
1129
1130 * newsmips [need testing]
1131
1132 Branch: thorpej_scsipi
1133 Description: SCSI/ATAPI midlayer rewrite.
1134 Status: Terminated; merged to -current
1135 Start Date:
1136 End Date: Apr 25 2001
1137 Base Tag: thorpej_scsipi_base, thorpej_scsipi_nbase
1138 Maintainer: Manuel Bouyer <bouyer (a] NetBSD.org>,
1139 Jason Thorpe <thorpej (a] NetBSD.org>
1140 Scope: syssrc
1141 Notes: When a change from -current is pulled up please move the
1142 thorpej_scsipi_base tag to the revision you're syncing with.
1143 thorpej_scsipi_nbase is private to maintainer (only
1144 used when syncing the whole branch with HEAD).
1145 Just before the merge, syssrc has been tagged with
1146 thorpej_scsipi_beforemerge
1147
1148 Branch: thorpej-signal
1149 Description: ?
1150 Status: ?
1151 Start Date:
1152 End Date:
1153 Base Tag: thorpej-signal-base
1154 Maintainer: Jason Thorpe <thorpej (a] NetBSD.org>
1155 Scope: kernel
1156 Notes:
1157
1158 Branch: thorpej-setroot
1159 Description: ?
1160 Status: Terminated; merged to -current
1161 Start Date:
1162 End Date:
1163 Base Tag:
1164 Maintainer: Jason Thorpe <thorpej (a] NetBSD.org>
1165 Scope: kernel
1166 Notes:
1167
1168 Branch: simonb-timecounters
1169 Description: Port FreeBSD timecounters to NetBSD
1170 Status: Terminated
1171 Start Date: Sat Feb 04 2006
1172 End Date: Wed Jun 07 2006
1173 Base Tag: simonb-timecounters-base
1174 Maintainer: Simon Burge <simonb (a] NetBSD.org>,
1175 Frank Kardel <kardel (a] NetBSD.org>
1176 Scope: sys, sbin/savecore, usr.bin/vmstat, usr.sbin/ntp
1177 Notes: early (partial conversion) commit to -current
1178 ok'ed by core@ on 20060605 for testing and further
1179 simplified conversion
1180
1181 Branch: simonb-wapbl
1182 Description: Wasabi's journaling filesystem support
1183 Status: Terminated; merged to -current
1184 Start Date: Tue Jun 10 2008
1185 End Date: Thu Jul 31 2008
1186 Base Tag: simonb-wapbl-base
1187 Maintainer: Simon Burge <simonb (a] NetBSD.org>
1188 Scope: src/distrib/sets/lists/comp src/distrib/utils/sysinst
1189 src/include
1190 src/sbin/fsck_ffs src/sbin/fsdb src/sbin/mount_ffs
1191 src/sbin/tunefs src/usr.sbin/dumpfs src/sys
1192 Notes: Still has a number of issues:
1193 - Some heavy workload performance issues on SMP machines.
1194 Work around this issue by turning on WAPBL_DEBUG_SERIALIZE
1195 in rev 1.1.2.11 of vfs_wapbl.c.
1196 - Removing large files (sparse only?) takes a long time.
1197 Eg, a file created with
1198 dd if=/dev/zero of=foox bs=1 count=1 seek=11261748520550
1199 takes 0:00.00 to remove on my test box without logging and
1200 0:22.25 to remove with logging. No disk IO during this...
1201 - sysinst should use in-fs logs now, not end-of-partition logs.
1202
1203 Branch: uebayasi-xip
1204 Description: Support eXecute-In-Place (XIP)
1205 Status: Active
1206 Start Date: 8 February 2010
1207 End Date:
1208 Base Tag: uebayasi-xip-base1
1209 Maintainer: Masao Uebayashi <uebayasi (a] NetBSD.org>
1210 Scope: src/include src/sbin/mount src/sbin/mount_ffs
1211 src/share/man/man4 src/share/man/man9 src/sys
1212 src/share/man/man5/statvfs.5
1213 Notes: Goals:
1214 - Clean up oddities in fault handler
1215 - Add a notion of device page
1216 - Teach XIP vnode VOP_GETPAGES
1217 - Hook XIP mount option
1218 - Teach some pmaps to handle device page
1219
1220 Branch: vmlocking
1221 Description: Make VM and file system framework MP safe
1222 Status: Terminated
1223 Start Date: 13 March 2007
1224 End Date: 4 December 2007
1225 Base Tag: vmlocking-base
1226 Maintainer: Andrew Doran <ad (a] NetBSD.org>
1227 Scope: kernel
1228 Notes: Superseded by vmlocking2 branch.
1229
1230 Branch: vmlocking2
1231 Description: Make VM and file system framework MP safe
1232 Status: Terminated
1233 Start Date: 4 December 2007
1234 End Date: 2 January 2008
1235 Base Tag: vmlocking2-base3
1236 Maintainer: Andrew Doran <ad (a] NetBSD.org>
1237 Scope: kernel
1238 Notes: Goals:
1239
1240 - Make VM system / trap handling MP safe.
1241 - Replace simplelocks with mutexes.
1242 - Make file system framework MP safe.
1243
1244 Status by architecture:
1245
1246 alpha done
1247 i386 done
1248 amd64 done
1249 mips done
1250 sparc need pmap/trap locking changes
1251 sparc64 done
1252 arm done
1253 powerpc done
1254 hppa done
1255 sh3 done
1256 m68k done
1257 xen need pmap/trap locking changes
1258
1259 Remaining MI work to do:
1260
1261 - Check aliased vnode handling. There may be problems.
1262
1263 Remaining problems:
1264
1265 - LFS stalls due to v_numoutput leak.
1266
1267 Branch: wrstuden-devbsize
1268 Description: Modify buffer cache to deal with different devices having
1269 different block sizes. Also DEV_BSIZE would go away.
1270 Status: Terminated
1271 Start Date: Aug or Sept 1999
1272 End Date: 1 Apr 2000
1273 Base tag: wrstuden-devbsize-base
1274 Maintainer: Bill Studenmund <wrstuden (a] NetBSD.org>
1275 Scope: kernel
1276 Notes: No longer active due to lack of time, and introduction
1277 of UBC. In terms of UBC, the primary cache for
1278 file data is the VM cache, which needs to operate
1279 in terms of VM pages. As no existing device has native
1280 pages the same size as our VM pages, there already is
1281 a mapping going on between the VM system and the
1282 underlying blocks. So it would be easier and cleaner
1283 to adjust that to deal w/ different block sizes.
1284 Also with UBC, all i/o is in terms of bytes at an offset
1285 with a certain length, so the exact block size isn't a big
1286 deal.
1287
1288 Any other wrstuden-devbsize tag may (and should) go away.
1289
1290 Branch: yamt-idlelwp
1291 Description: idle lwp, and some changes depending on it.
1292
1293 1. separate context switching and thread scheduling.
1294 (cf. gmcgarry_ctxsw)
1295 2. implement idle lwp.
1296 3. clean up related MD/MI interfaces.
1297 4. make scheduler(s) modular.
1298
1299 Status: Terminated; merged to -current
1300 Start Date: Fri Feb 17 2007
1301 End Date: Thu May 17 2007
1302 Base Tag: yamt-idlelwp-base8
1303 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1304 Scope: src/sys (src/common is tagged but not branched)
1305 Notes:
1306 Status of ports:
1307 alpha [ Done, UP tested, MP not tested ]
1308 i386 [ Done, tested ]
1309 amd64 [ Done, tested ]
1310 mips [ Done, both MIPS1 and MIPS3 tested]
1311 sparc [ Done, UP tested, MP might have
1312 some problem after newlock2 merge ]
1313 sparc64 [ Done, tested ]
1314 arm [ Done, SA1 tested. See PR 36548 ]
1315 macppc/powerpc [ Done, OEA tested ]
1316 hppa [ Done, tested ]
1317 sh3 [ Done, tested ]
1318 vax [ Done, UP tested, MP untested ]
1319 m68k [ Done, tested on several ports ]
1320 ns32k [ broken ]
1321 ia64 [ broken ]
1322 pdp10 [ broken ]
1323
1324 How to adapt a port?
1325
1326 - unify cpu_switch, cpu_exit, cpu_switchto into
1327 a single cpu_switchto. see cpu_switchto.9.
1328
1329 - implement cpu_idle. see cpu_idle.9.
1330
1331 - add a flag argument to cpu_need_resched.
1332 handle RESCHED_IMMED flag, which means "cause a preemption
1333 as soon as possible." eg. in the case of MULTIPROCESSOR,
1334 send an IPI to the target cpu.
1335
1336 - "curlwp == NULL" is not a valid check for idle state anymore.
1337 use "(curlwp->l_flag & LW_IDLE) != 0" instead. curlwp is
1338 almost always non-NULL, with exceptions like early on boot.
1339
1340 - remove idle pcbs.
1341
1342 - (if MULTIPROCESSOR) tweak processor trampoline code.
1343
1344 - (if MULTIPROCESSOR) call mi_cpu_attach when attaching
1345 secondary processors.
1346
1347 - (if schedhz!=0) call schedclock regardless of the value of
1348 curlwp.
1349
1350 - of course, update MD users of scheduler/switching API.
1351
1352 Branch: yamt-lazymbuf
1353 Description: change the way to share mbuf external storage so that
1354 it can work without kernel_lock.
1355 Status: Terminated; merged to -current
1356 Start Date: Wed Jul 6 2005
1357 End Date: Mon Mar 24 2008
1358 Base Tag: yamt-lazymbuf-base14
1359 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1360 Scope: src/sys (src/common is tagged but not branched)
1361 Notes:
1362
1363 Branch: yamt-km, yamt-km-doc
1364 Description: simplify/improve kernel memory management and bootstrap
1365 Status: Terminated; merged to -current
1366 Start Date: Tue Jan 25 2005
1367 End Date: Fri Apr 1 2005
1368 Base Tag: yamt-km-base{,2,3,4}, yamt-km-doc-base
1369 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1370 Scope: yamt-km: src/sys
1371 yamt-km-doc: src/share/man/man9/uvm.9
1372 Notes: http://mail-index.NetBSD.org/tech-kern/2004/12/25/0005.html
1373
1374 the followings are per-port status.
1375 (account names mean "tested by".)
1376
1377 works enough to go to multiuser:
1378 alpha, i386, xen (yamt@)
1379 pc532 (simonb@)
1380 alpha, i386, mac68k, macppc, pmax, shark,
1381 sparc, sparc64, sun3, x68k (chs@)
1382 cobalt, dreamcast, hp300, news68k, newsmips,
1383 sun3x (tsutsui@)
1384 amiga (mhitch@)
1385 cats, hp700 (skrll@)
1386 xen (bouyer@)
1387
1388 known to have the same problem as trunk:
1389 vax (chs@, stuck while running kvm_mkdb)
1390
1391 known to have a problem:
1392 luna68k (and, if any, other m68k ports which use TTR)
1393 needs to be revisited.
1394 -> for luna68k, although not tested,
1395 Sysmap has been moved to avoid kva conflict with
1396 I/O ranges.
1397
1398 buildable:
1399 src/sys/arch/acorn26/conf/GENERIC
1400 src/sys/arch/acorn32/conf/GENERIC
1401 src/sys/arch/algor/conf/P6032
1402 src/sys/arch/alpha/conf/GENERIC
1403 src/sys/arch/alpha/conf/GENERIC.MP
1404 src/sys/arch/amd64/conf/GENERIC
1405 src/sys/arch/amd64/conf/GENERIC.MP
1406 src/sys/arch/amiga/conf/GENERIC
1407 src/sys/arch/arc/conf/GENERIC
1408 src/sys/arch/atari/conf/MILAN-PCIIDE
1409 src/sys/arch/bebox/conf/GENERIC
1410 src/sys/arch/cats/conf/GENERIC
1411 src/sys/arch/cesfic/conf/GENERIC
1412 src/sys/arch/cobalt/conf/GENERIC
1413 src/sys/arch/dreamcast/conf/GENERIC
1414 src/sys/arch/evbarm/conf/TS7200
1415 src/sys/arch/evbppc/conf/WALNUT
1416 src/sys/arch/evbsh3/conf/COMPUTEXEVB
1417 src/sys/arch/evbsh5/conf/CAYMAN64
1418 src/sys/arch/hp300/conf/GENERIC
1419 src/sys/arch/hp700/conf/GENERIC
1420 src/sys/arch/hpcarm/conf/JORNADA728
1421 src/sys/arch/hpcmips/conf/GENERIC
1422 src/sys/arch/hpcsh/conf/GENERIC
1423 src/sys/arch/hpcsh/conf/HPW650PA
1424 src/sys/arch/i386/conf/GENERIC
1425 src/sys/arch/i386/conf/GENERIC.MP
1426 src/sys/arch/i386/conf/XEN0
1427 src/sys/arch/i386/conf/XENU
1428 src/sys/arch/ibmnws/conf/GENERIC
1429 src/sys/arch/iyonix/conf/GENERIC
1430 src/sys/arch/luna68k/conf/GENERIC
1431 src/sys/arch/mac68k/conf/GENERIC
1432 src/sys/arch/macppc/conf/GENERIC
1433 src/sys/arch/macppc/conf/GENERIC.MP
1434 src/sys/arch/mipsco/conf/GENERIC
1435 src/sys/arch/mmeye/conf/GENERIC
1436 src/sys/arch/mvme68k/conf/GENERIC
1437 src/sys/arch/netwinder/conf/GENERIC
1438 src/sys/arch/news68k/conf/GENERIC
1439 src/sys/arch/newsmips/conf/GENERIC
1440 src/sys/arch/next68k/conf/GENERIC
1441 src/sys/arch/ofppc/conf/GENERIC
1442 src/sys/arch/pc532/conf/GENERIC
1443 src/sys/arch/pmax/conf/GENERIC
1444 src/sys/arch/prep/conf/GENERIC
1445 src/sys/arch/sandpoint/conf/GENERIC
1446 src/sys/arch/sbmips/conf/GENERIC
1447 src/sys/arch/sgimips/conf/GENERIC32_IP3x
1448 src/sys/arch/shark/conf/GENERIC
1449 src/sys/arch/sparc/conf/GENERIC
1450 src/sys/arch/sparc/conf/GENERIC.MP
1451 src/sys/arch/sparc64/conf/GENERIC
1452 src/sys/arch/sparc64/conf/GENERIC.MP
1453 src/sys/arch/sun2/conf/GENERIC
1454 src/sys/arch/sun3/conf/GENERIC
1455 src/sys/arch/vax/conf/GENERIC
1456 src/sys/arch/vax/conf/GENERIC.MP
1457 src/sys/arch/x68k/conf/GENERIC
1458
1459 src/sys/arch/playstation2/conf/GENERIC
1460
1461 Branch: yamt-pdpolicy
1462 Description: play with page replacement policy
1463 - separate page replacement policy from the rest of kernel
1464 - implement alternative replacement policy
1465 - related read-ahead adjustment?
1466 Status: Terminated; merged to -current
1467 Start Date: Sun Mar 5 2006
1468 End Date: Sat Sep 16 2006
1469 Base Tag: yamt-pdpolicy-base9
1470 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1471 Scope: src/sys (src/common is tagged but not branched)
1472 Notes:
1473
1474 Branch: yamt-pf42
1475 Description: import newer pf from OpenBSD 4.2
1476 Status: Terminated; merged to -current
1477 Start Date: Sat Apr 19 2008
1478 End Date: Wed Jun 18 2008
1479 Base Tag: yamt-pf42-base4
1480 Maintainer: Peter Postma <peter (a] NetBSD.org>,
1481 YAMAMOTO Takashi <yamt (a] NetBSD.org>
1482 Scope: src
1483 Notes: see sys/dist/pf/net/TODO
1484
1485 Branch: yamt-readahead
1486 Description: play with file readahead
1487 Status: Terminated; merged to -current
1488 Start Date: Mon Nov 14 2005
1489 End Date: Wed Nov 30 2005
1490 Base Tag: yamt-readahead-base3
1491 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1492 Scope: src/sys
1493 Notes:
1494
1495 Branch: yamt-uio_vmspace
1496 Description: uio_lwp/uio_segflg -> uio_vmspace
1497 Status: Terminated; merged to -current
1498 Start Date: Mon Dec 31 2005
1499 End Date: Wed Mar 1 2006
1500 Base Tag: yamt-uio_vmspace-base5
1501 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1502 Scope: src/sys
1503 Notes:
1504
1505 Branch: yamt-splraiseipl
1506 Description: finish implementing splraiseipl (and makeiplcookie).
1507 http://mail-index.NetBSD.org/tech-kern/2006/07/01/0000.html
1508
1509 - completes workqueue(9) and netbt.
1510 - fix PR/33218.
1511
1512 Status: Terminated; merged to -current
1513 Start Date: Mon Sep 18 2006
1514 End Date: Fri Dec 22 2006
1515 Base Tag: yamt-splraiseipl-base5
1516 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1517 Scope: src/sys (src/common is tagged but not branched)
1518 Notes:
1519 tested (by who):
1520 alpha (yamt)
1521 alpha (pavel)
1522 amd64 (reported privately)
1523 cobalt (tsutsui)
1524 ews4800mips (tsutsui)
1525 hp300 (tsutsui)
1526 hpcarm (reported privately)
1527 i386 (yamt)
1528 macppc (tsutsui)
1529 news68k (tsutsui)
1530 sgimips(IP32) (tsutsui)
1531 sparc(sun4c) (tsutsui)
1532 sun2 (tsutsui)
1533 sun3 (tsutsui)
1534 sun3x (tsutsui)
1535 xen (yamt)
1536
1537 compile-tested:
1538 acorn26
1539 acorn32
1540 algor
1541 amiga
1542 arc
1543 atari
1544 bebox
1545 cats
1546 cesfic
1547 dreamcast
1548 evbarm
1549 evbmips
1550 evbppc(marvell)
1551 evbppc(ibm4xx)
1552 evbsh3
1553 hp700
1554 hpcmips
1555 hpcsh
1556 ia64
1557 ibmnws
1558 iyonix
1559 landisk
1560 luna68k
1561 mac68k
1562 mmeye
1563 mvme68k
1564 mvmeppc
1565 mipsco
1566 netwinder
1567 newsmips
1568 next68k
1569 ofppc
1570 pc532
1571 pmax
1572 pmppc
1573 prep
1574 sandpoint
1575 sbmips
1576 shark
1577 sparc
1578 sparc64
1579 vax
1580 x68k
1581 zaurus
1582
1583 not tested:
1584 pdp10 (i don't know how to build)
1585 sh5 (not buildable with an unrelated problem.)
1586
1587 compile CAYMAN64/netbsd32_sa.o
1588 cc1: warnings being treated as errors
1589 /exports/nbsd/src/sys/compat/netbsd32/netbsd32_sa.c: In function 'netbsd32_sa_ucsp':
1590 /exports/nbsd/src/sys/compat/netbsd32/netbsd32_sa.c:126: warning: implicit declaration of function '_UC_MACHINE32_SP'
1591 --- netbsd32_sa.o ---
1592 *** [netbsd32_sa.o] Error code 1
1593 1 error
1594
1595 notyet:
1596 amigappc
1597 playstation2
1598
1599 Branch: yamt-vop
1600 Description: remove several VOPs
1601 Status: Terminated; merged to -current
1602 Start Date: Wed Oct 19 2005
1603 End Date: Wed Nov 2 2005
1604 Base Tag: yamt-vop-base3
1605 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1606 Scope: src/sys
1607 Notes: http://mail-index.NetBSD.org/tech-kern/2005/09/27/0000.html
1608
1609 Branch: yamt-x86pmap
1610 Description: merge i386 and amd64 pmap
1611 Status: Terminated; merged to -current
1612 Start Date: Mon Sep 24 2007
1613 End Date: Fri Oct 19 2007
1614 Base Tag: yamt-x86pmap-base4
1615 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1616 Scope: src/sys (src/common is tagged but not branched)
1617 Notes:
1618
1619 Branch: gdamore-uart
1620 Description: Add register table support to com driver.
1621 Status: Active
1622 Start Date: 14 June 2006
1623 End Date: 13 July 2006
1624 Base Tag: gdamore-uart-base
1625 Maintainer: Garrett D'Amore <gdamore (a] NetBSD.org>
1626 Scope: kernel
1627 Notes: Results in consolidation of Alchemy (mips/dev/alchemy/aucom.c)
1628 com support, and also removes a nasty hack from Atheros com.
1629
1630 Branch: christos-time_t
1631 Description: Change time_t and dev_t to 64 bit quantities; fix timeval
1632 and timespec.
1633 Status: merged
1634 Start Date: 29 March 2008
1635 End Date: 10 January 2009
1636 Base Tag: christos-time_t-base
1637 Maintainer: Christos Zoulas <christos (a] NetBSD.org>
1638 Scope: kernel, libc, libutil, userland
1639 Notes: Requires a major bump of all libraries except libc, libutil.
1640
1641 Branch: rtr-xorg-branch
1642 Description: xorg & static build alterations to src/x11
1643 Status: Dead; replaced by src/external/mit/xorg
1644 Start Date: Nov 15 2004
1645 End Date: ?
1646 Base tag: rtr-xorg-branch-base
1647 Maintainer: Tyler R. Retzlaff <rtr (a] NetBSD.org>
1648 Scope: x11
1649 distrib/sets/lists
1650 share/mk/bsd.x11.mk
1651 share/mk/bsd.own.mk
1652 etc/mtree/NetBSD.dist
1653 Notes: Requires parts of xsrc/xfree (HEAD)
1654 xsrc/local, xsrc/xfree/xc/programs/Xserver/hw/netbsd
1655 Requires xorg (XORG-6_8_1)
1656
1657 Branch: gmcgarry_ctxsw
1658 Description: Separate scheduler from context-switch code
1659 Status: Dead; replaced by cpu_switchto / yamt-idlelwp branch
1660 Start Date: 18 December 2002
1661 End Date:
1662 Base Tag: gmcgarry_ctxsw_base
1663 Maintainer: Gregory McGarry <gmcgarry (a] NetBSD.org>
1664 Scope: kernel
1665 Notes: Removing knowledge of the scheduler and its run queues
1666 from the machine-dependent context switch code is the
1667 first step in cleaning up the scheduler. It is necessary
1668 for the newlock branch, making the scheduler SMP friendly,
1669 adding real-time scheduler extensions, and reducing the
1670 number of code paths for LWP and proc switching.
1671
1672 Branch: nick-hppapmap
1673 Description: Update of hppa pmap with OpenBSD code.
1674 Status: Terminated; merged to -current
1675 Start Date: 27 October 2008
1676 End Date: 30 April 2009
1677 Base Tag: nick-hppapmap-base3
1678 Maintainer: Nick Hudson <skrll (a] NetBSD.org>
1679 Scope: sys/
1680 Notes: Port of the OpenBSD pmap including support for PA2.0 CPUs in
1681 32-bit mode.
1682
1683 Branch: thorpej-atomic
1684 Description: Implementation of an atomic memory operations API modeled
1685 after the one in Solaris 10.
1686 Status: Terminated; merged to -current
1687 Start Date: Apr 11 2007
1688 End Date: Nov 18 2007
1689 Base tag: thorpej-atomic-base
1690 Maintainer: Jason Thorpe <thorpej (a] netbsd.org>
1691 Scope: src/common
1692 src/sys
1693 Notes: Base atomic primitives need to be implemented for
1694 all of the supported architectures:
1695
1696 alpha DONE
1697 arm DONE
1698 hppa
1699 i386 DONE
1700 ia64
1701 m68k DONE (except for 68010)
1702 mips
1703 ns32k
1704 powerpc DONE except for membar_*()
1705 powerpc64 DONE except for membar_*()
1706 sh3
1707 sparc DONE except for membar_*()
1708 sparc64 DONE except for membar_*()
1709 vax
1710 x86_64 DONE
1711
1712 Tested:
1713
1714 alpha NO
1715 arm NO
1716 hppa NO
1717 i386 NO
1718 ia64 NO
1719 m68k NO
1720 mips NO
1721 ns32k NO
1722 powerpc NO
1723 powerpc64 NO
1724 sh3 NO
1725 sparc NO
1726 sparc64 NO
1727 vax NO
1728 x86_64 NO
1729
1730 TODO:
1731
1732 all - Need to replace mb_*() with membar_*().
1733
1734 - Audit MUTEX_CAS() and RWLOCK_CAS() uses
1735 to see of membar_enter() is required here.
1736
1737 - Talk to ad@ -- figure out of non-atomic
1738 mutex / rwlock release is actually safe.
1739
1740 arm - Consider using a RAS technique like
1741 MIPS uses for _lock_cas() and the mutex
1742 stubs. Possibly do more than one atomic
1743 op as a RAS. Possibly implement mutex
1744 stubs using the technique.
1745
1746 m68k - Need to do 68010 support.
1747
1748 i386 - Need to change when x86_patch() is called
1749 so we can test ncpus.
1750
1751 powerpc - Figure out if we need barriers in the
1752 atomic ops themselves (hopefully not!)
1753
1754 x86_64 - Need to change when x86_patch() is called
1755 so we can test ncpus.
1756
1757 ########################################################################
1758 # Other:
1759 ########################################################################
1760
1761 Branch: magnum
1762 Description: ?
1763 Status: ?
1764 Start Date:
1765 End Date:
1766 Base Tag: magnum-base
1767 Maintainer: ?
1768 Scope: kernel
1769 Notes:
1770
1771