BRANCHES revision 1.345 1 # $NetBSD: BRANCHES,v 1.345 2018/03/06 00:15:24 pgoyette 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: Terminated
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: Terminated
210 Start Date: 31 Oct 2008
211 End Date: 9 Nov 2015
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: Terminated
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 Branch: netbsd-5-1
229 Description: Tracking security/critical fixes for NetBSD 5.1
230 Status: Terminated
231 Start Date:
232 End Date: 9 Nov 2015
233 Base Tag: netbsd-5-1-RELEASE
234 Maintainer: 5.1 Release Engineering <releng-5 (a] NetBSD.org>
235 Scope: Entire tree. (src + xsrc)
236 Notes: Commits restricted to Release Engineering.
237
238 Branch: netbsd-5-2
239 Description: Tracking security/critical fixes for NetBSD 5.2
240 Status: Terminated
241 Start Date:
242 End Date: 9 Nov 2015
243 Base Tag: netbsd-5-2-RELEASE
244 Maintainer: 5.2 Release Engineering <releng-5 (a] NetBSD.org>
245 Scope: Entire tree. (src + xsrc)
246 Notes: Commits restricted to Release Engineering.
247
248 Branch: netbsd-6
249 Description: The NetBSD 6 release branch
250 Status: Active
251 Start Date: 15 Feb 2012
252 End Date:
253 Base Tag: netbsd-6-base
254 Maintainer: 6.0 Release Engineering <releng-6 (a] NetBSD.org>
255 Scope: Entire tree. (src + xsrc)
256 Notes:
257 Commits restricted to Release Engineering.
258
259 Branch: netbsd-6-0
260 Description: Tracking security/critical fixes for NetBSD 6.0
261 Status: Active
262 Start Date: 17 Oct 2012
263 End Date:
264 Base Tag: netbsd-6-0-RELEASE
265 Maintainer: 6.0 Release Engineering <releng-6 (a] NetBSD.org>
266 Scope: Entire tree. (src + xsrc)
267 Notes:
268 Commits restricted to Release Engineering.
269
270 Branch: netbsd-6-1
271 Description: Tracking security/critical fixes for NetBSD 6.1
272 Status: Active
273 Start Date: 01 Feb 2013
274 End Date:
275 Base Tag: netbsd-6-1-RELEASE
276 Maintainer: 6.1 Release Engineering <releng-6 (a] NetBSD.org>
277 Scope: Entire tree. (src + xsrc)
278 Notes:
279 Commits restricted to Release Engineering.
280
281 Branch: netbsd-7
282 Description: The NetBSD 7 release branch
283 Status: Active
284 Start Date: 11 Aug 2014
285 End Date:
286 Base Tag: netbsd-7-base
287 Maintainer: 7.0 Release Engineering <releng-7 (a] NetBSD.org>
288 Scope: Entire tree. (src + xsrc)
289 Notes:
290 Commits restricted to Release Engineering.
291
292 Branch: netbsd-7-0
293 Description: Tracking security/critical fixes for NetBSD 7.0
294 Status: Active
295 Start Date: 10 Oct 2015
296 End Date:
297 Base Tag: netbsd-7-0-RELEASE
298 Maintainer: 7.0 Release Engineering <releng-7 (a] NetBSD.org>
299 Scope: Entire tree. (src + xsrc)
300 Notes:
301 Commits restricted to Release Engineering.
302
303 Branch: netbsd-7-1
304 Description: Tracking security/critical fixes for NetBSD 7.1
305 Status: Active
306 Start Date: 15 Mar 2017
307 End Date:
308 Base Tag: netbsd-7-1-RELEASE
309 Maintainer: NetBSD 7 Release Engineering <releng-7 (a] NetBSD.org>
310 Scope: Entire tree. (src + xsrc)
311 Notes:
312 Commits restricted to Release Engineering.
313
314 Branch: netbsd-8
315 Description: The NetBSD 8 release branch
316 Status: Active
317 Start Date: 2017-06-04
318 End Date:
319 Base Tag: netbsd-8-base
320 Maintainer: Release Engineering <releng (a] NetBSD.org>
321 Scope: Entire tree. (src + xsrc)
322 Notes:
323 Commits restricted to Release Engineering.
324
325 ########################################################################
326 # Individual developers' branches (Active/Dormant):
327 ########################################################################
328
329 Branch: ad-audiomp
330 Description: Add MP locking to the audio drivers
331 Status: Terminated
332 Start Date: 28 February 2007
333 End Date: 7 December 2008
334 Base Tag: ad-audiomp-base
335 Maintainer: Andrew Doran <ad (a] NetBSD.org>
336 Scope: kernel
337 Notes: Making the audio drivers MP safe is necessary before efforts
338 can be made to make the VM system MP safe. About 1/2 of the
339 drivers are converted, the remaining 1/2 need more changes.
340
341 As of import this is snapshot of work in progress and so
342 may not compile; in particular the midi changes are very
343 much "in progress". The audio component has been tested
344 and verified to work with emuxki and auvia. There may
345 be a locking issue in the ac97 code at boot.
346
347 The are two locks per device instance, an ISR lock and
348 a character device lock. The ISR lock replaces calls to
349 splaudio()/splx(), and will be held across calls to device
350 methods which were called at splaudio() before (e.g.
351 trigger_output). The character device lock is held across
352 calls to nearly all of the methods, excluding some only
353 used for initialization, e.g. get_locks. This needs to be
354 documented at merge time.
355
356 To test on a multi way x86 system, search for "mpsafe" in
357 x86/x86/intr.c and change IPL_SCHED to IPL_AUDIO. Run a job
358 that will acquire the ISR lock (depends on the hardware, but
359 "while true; do mixerctl -a > /dev/null; done" may suffice).
360 Play audio, run lockstat and verify that that there is
361 contention on the ISR lock.
362
363 Branch: ad-audiomp2
364 Description: Add MP locking to the audio drivers
365 Status: Terminated
366 Start Date: 7 December 2008
367 End Date: 19 November 2011
368 Base Tag: ad-audiomp2-base
369 Maintainer: Andrew Doran <ad (a] NetBSD.org>
370 Scope: kernel
371 Notes: Ressurect ad-audiomp, make the audio drivers MP safe.
372
373 Branch: agc-netpgp-standalone
374 Description: Remove dependency on openssl libraries in netpgp
375 Status: Active
376 Start Date: 5 May 2012
377 End Date:
378 Base Tag: agc-netpgp-standalone-base
379 Maintainer: Alistair Crooks <agc (a] NetBSD.org>
380 Scope: src/crypto/external/bsd/netpgp
381 Notes: This branch is used to develop the version of netpgp
382 which has its own version of bignum, ciphers, and signatures
383 libraries, so that it is able to operate without openssl
384 being in place.
385
386 Branch: agc-symver
387 Description: Add library symbol versioning information
388 Status: Active
389 Start Date: 24 March 2013
390 End Date:
391 Base Tag: agc-symver-base
392 Maintainer: Alistair Crooks <agc (a] NetBSD.org>
393 Scope: src
394 Notes: This branch is used to develop DSO symbol versioning, allowing
395 symbols to be added, modified and removed from shared libraries.
396
397 Branch: bjh21-hydra
398 Description: Simtec Hydra support and ARM SMP in general
399 Status: Dormant
400 Start Date: 18 Oct 2002
401 End Date:
402 Base Tag: bjh21-hydra-base
403 Maintainer: Ben Harris <bjh21 (a] NetBSD.org>
404 Scope: sys/arch/arm sys/arch/acorn32
405 Notes: This code was on a branch because it involves changes to
406 cpuswitch.S which would otherwise make merging the
407 nathanw_sa branch difficult.
408
409 Branch: bouyer-socketcan
410 Description: Implement a CAN socket layer compatible with linux SocketCAN
411 Status: Terminated
412 Start Date: Sun Jan 15 2017
413 End Date: May 27 2017
414 Base Tag: bouyer-socketcan-base
415 Maintainer: Manuel Bouyer <bouyer (a] NetBSD.org>
416 Scope: src/
417 Notes: Some documentation on SocketCAN is there:
418 https://www.kernel.org/doc/Documentation/networking/can.txt
419
420 Branch: cherry-xenmp
421 Description: Port i386 and amd64 Xen kernels to run MP
422 Status: Terminated
423 Start Date: 1st June 2011
424 End Date: 13th January 2012
425 Base Tag: cherry-xenmp-base
426 Maintainer: Cherry G. Mathew <cherry (a] NetBSD.org>
427 Scope: kernel
428 Notes: None
429
430 Branch: chris-arm-intr-rework
431 Description: Rework arm interrupt handling code
432 Status: Dormant
433 Start Date: 11 Aug 2007
434 End Date:
435 Base Tag: chris-arm-intr-rework-base
436 Maintainer: Chris Gilbert <chris (a] NetBSD.org>
437 Scope: sys/arch/arm sys/arch/cats (other arm archs to follow)
438 Notes: Rework arm interrupt code to provide a shared set of interrupt
439 routines, and allow improvements to be shared across all arm
440 based hardware.
441
442 Branch: gmcgarry_ucred
443 Description: Integrate and encapsulate user credentials
444 Status: Dormant
445 Start Date: 18 December 2002
446 End Date:
447 Base Tag: gmcgarry_ucred_base
448 Maintainer: Gregory McGarry <gmcgarry (a] NetBSD.org>
449 Scope: kernel
450 Notes: merge pcred and ucred and poolify
451
452 Branch: hpcarm-cleanup
453 Description: Fix build problems for hpcarm
454 Status: Active
455 Start Date: 31 July 2007
456 End Date:
457 Base Tag: hpcarm-cleanup-base
458 Maintainer: Robert Swindells <rjs (a] NetBSD.org>
459 Scope: kernel
460 Notes: Modify SA11x0 interrupt code to match PXA2x0 equivalent.
461
462 Branch: itohy-usb1
463 Description: USB stack overhaul, mostly DMA related
464 Status: Terminated
465 Start Date: 22 May 2007
466 End Date:
467 Base Tag: itohy-usb1-base
468 Maintainer: ITOH Yasufumi <itohy (a] NetBSD.org>
469 Scope: kernel
470 Notes: To check out the kernel source tree,
471 1. check out checkout script
472 cvs checkout -ritohy-usb1 src/sys/dev/usb/filelist
473 2. update files in the branch
474 sh -e src/sys/dev/usb/filelist
475
476 Branch: jruoho-x86intr
477 Description: Cleanup and rework the x86 APIC and PIC subsystems
478 Status: Active
479 Start Date: 17 January 2011
480 End Date:
481 Base Tag: jruoho-x86intr-base
482 Maintainer: Jukka Ruohonen <jruoho (a] NetBSD.org>
483 Scope: kernel
484 Notes: This branch aims to cleanup the x86 interrupt routing code.
485 In particular, a new implementation is provided for all
486 elements of the APIC that involve ACPI. In addition, better
487 abstractions are provided for the whole PIC layer. The main
488 work areas are sys/arch/x86 and sys/dev/acpi.
489
490 Branch: jym-xensuspend
491 Description: Implement xm save/restore/migrate for NetBSD domU
492 Status: Terminated
493 Start Date: 2009-02-08
494 End Date: 2011-09-20
495 Base Tag: jym-xensuspend-base
496 Maintainer: Jean-Yves Migeon <jym (a] NetBSD.org>
497 Scope: kernel
498 Notes: This branch contains the code required to support the Xen
499 save/restore/migrate facilities. It affects domU frontend
500 drivers (xbd, xennet, xencons, hypervisor), autoconf(9)
501 machinery, as well as MD code (mostly pmap(9)).
502
503 Branch: kame
504 Description: KAME Project
505 Status: Dormant
506 Start Date: 28 Jun 1999
507 End Date:
508 Base Tag:
509 Maintainer: Jun-ichiro itojun Hagino <itojun (a] NetBSD.org>
510 Scope: kernel
511 Notes: http://www.kame.net
512 Used for "reference" purposes for early part of KAME
513 integration effort. The branch is not actively used, as I
514 (itojun) use patch(1) and diff(1) for the KAME syncs.
515
516 Branch: keiichi-mipv6
517 Description: Developing Mobile IPv6 function
518 Status: Active
519 Start Date: 21 Feb 2008
520 End Date:
521 Base Tag: keiichi-mipv6-base
522 Maintainer: Keiichi Shima <keiichi (a] netbsd.org>
523 Scope: sys, sbin, libc/net, distrib/sets, share/man/
524 Notes: http://www.mobileip.jp/
525 Work on developing Mobile IPv6/NEMO BS functions and
526 related MIPv6 based advanced functions on NetBSD.
527 Please consult keiichi for joining this activity.
528
529 Branch: kent-audio2
530 Description: In-kernel audio mixer
531 Status: Active
532 Start Date: Sun Jan 16 2005
533 End Date:
534 Base Tag: kent-audio2-base
535 Maintainer: TAMURA Kent <kent (a] NetBSD.org>
536 Scope: kernel (audio device drivers)
537 Notes: http://mail-index.netbsd.org/tech-kern/2004/12/03/0007.html
538 Please consult with the maintainer before committing
539 to this branch.
540 This branch is not expected to be compilable yet.
541
542 Branch: khorben-n900
543 Description: Supporting the Nokia N900 smartphone
544 Status: Active
545 Start Date: 2013-05-07
546 Maintainer: Pierre Pronchery <khorben (a] netbsd.org>
547 Scope: kernel (OMAP3 support, device drivers)
548 Notes: Do not hesitate to communicate any change that would be welcome
549 in HEAD.
550
551 Branch: matt-mips64
552 Description: Rototill the mips code to support LP64 mips and N32/N64 ABIs
553 Status: Mostly dead
554 Start Date: 2007-07-17
555 End Date:
556 Base Tag: matt-mips64-base
557 Maintainer: Matt Thomas <matt (a] NetBSD.org>
558 Scope: kernel & userland
559 Notes:
560
561 Branch: matt-nb5-mips64
562 Description: Rototill the mips code to support LP64 mips and N32/N64 ABIs
563 Status: Active
564 Start Date: 2009-08-01
565 End Date:
566 Base Tag: netbsd-5-1-RELEASE
567 Maintainer: Matt Thomas <matt (a] NetBSD.org>
568 Scope: kernel & userland
569 Notes:
570
571 Branch: matt-nb5-pq3
572 Description: Rototill the powerpc code to support mpc85xx
573 Status: Inactive
574 Start Date: 2010-12-20
575 End Date:
576 Base Tag: matt-nb5-pq3-base
577 Maintainer: Matt Thomas <matt (a] NetBSD.org>
578 Scope: kernel & userland
579 Notes:
580
581 Branch: matt-nb8-mediatek
582 Description: Add support for various MediaTek SoCs
583 Status: Active
584 Start Date: 2017-10-27
585 End Date:
586 Base Tag: matt-nb8-mediatek-base
587 Maintainer: Matt Thomas <matt (a] NetBSD.org>
588 Scope: kernel & userland
589 Notes:
590
591 Branch: mjf-devfs2
592 Description: device file system supporting dynamic device nodes
593 Status: Active
594 Start Date: 21 February 2008
595 End Date:
596 Base Tag: mjf-devfs2-base
597 Maintainer: Matt Fleming <mjf (a] NetBSD.org>
598 Scope: kernel and userland
599 Notes: This branch will move away from the static device nodes that
600 are created with MAKEDEV scripts and allow nodes to be created
601 and removed dynamically as devices are attached and detached
602 from the machine.
603
604 Branch: mjf-ufs-trans
605 Description: file system transactions for ufs
606 Status: Active
607 Start Date: 12 March 2007
608 End Date:
609 Base Tag: mjf-ufs-trans-base
610 Maintainer: Matt Fleming <mjf (a] NetBSD.org>
611 Scope: kernel
612 Notes:
613
614 Branch: nick-net80211-sync
615 Description: sync of net80211 with FreeBSD
616 Status: Dormant
617 Start Date: 21 February 2008
618 End Date:
619 Base Tag: nick-net80211-base
620 Maintainer: Nick Hudson <skrll (a] NetBSD.org>
621 Scope: sys/
622 Notes: Sync'ing net80211 with FreeBSD and drivers update. The branch is
623 currently only the kernel, but will likely extend to some userland
624 areas.
625
626 Branch: pkgviews
627 Description: package views, enabling multiple conflicting packages to co-exist
628 Status: Active
629 Start Date: 22 July 2002
630 End Date:
631 Base Tag: pkgviews
632 Maintainer: Alistair Crooks <agc (a] NetBSD.org>
633 Scope: pkgsrc, basesrc/usr.sbin/pkg_install
634 Notes: A more flexible infrastructure for third-party packages by
635 allowing multiple conflicting packages and versions to co-exist
636 within the same tree
637
638 Branch: rmind-smpnet
639 Description: MP safe network stack (milestone 1): IPv4, UDP and ICMP
640 Status: Active
641 Start Date: 17 July 2013
642 End Date:
643 Base Tag: rmind-smpnet-base
644 Maintainer: Mindaugas Rasiukevicius <rmind (a] netbsd.org>
645 Scope: Kernel: src/sys (src/common is tagged but not branched)
646 Notes: Goals:
647
648 - Improve the abstraction of PCB and other interfaces.
649 - Add PCB and route cache locking, adjust socket locking.
650 - Rework IPv4, UDP and ICMP paths to be MP safe.
651 - Switch UDP sockets to a separate lock, test and benchmark.
652
653 Branch: rpaulo-netinet-merge-pcb
654 Description: merge in6pcb with inpcb
655 Status: Dormant
656 Start Date: Wed Feb 01 2006
657 End Date:
658 Base Tag: rpaulo-netinet-merge-pcb-base
659 Maintainer: Rui Paulo <rpaulo (a] NetBSD.org>
660 Scope: src/sys
661 Notes: No longer active due to the lack of time. If you plan to
662 continue this branch, sys/netinet/in_pcb.h already contains
663 the proposed structure layout (which was roughly discussed
664 in the tech-net mailing list).
665 I also defined INP_*() macros to mimicate FreeBSD's inpcb
666 locking style, but currently they do nothing and are not
667 yet called at the correct places (needs discussion about
668 kernel fine-grained locking).
669 To continue this branch, one needs to read all the relevant
670 inpcb/in6pcb source files and change the function names,
671 structure names, structure fields according to the new
672 layout (in6pcb is gone).
673 Don't try to build a kernel from this branch because it won't
674 work. The missing pieces required to do a complete build
675 were not committed because they were incomplete and generated
676 panics.
677 You shouldn't need to worry about KAME syncs because
678 they did most of them by now.
679 After the work is done, you are required to test the branch
680 (before the merge to -current) with an interop IPv6 test.
681 More info at: http://www.tahi.org/
682
683 Branch: wrstuden-fixsa
684 Description: Fix a number of issues present with Scheduler Activations.
685 Status: Active
686 Start Date: 15 May 2007
687 End Date:
688 Base Tag: wrstuden-fixsa-base
689 Maintainer: Bill Stouder-Studenmund <wrstuden (a] NetBSD.org>
690 Scope: src, though all the interesting stuff is in the kernel
691 or lib/libpthread or maybe gdb.
692 Notes: This branch is based off of the netbsd-4 branch!
693 This branch is intended to stage improvements for the
694 Scheduler Activations system for NetBSD 4. Improvements
695 include not allocating memory while preparing to tsleep(),
696 reducing inappropriate upcall delivery (hopefully also
697 eliminating the need to mlock stacks), and being
698 able to pthread_kill() running threads. At this date,
699 most goals have been achieved. This branch also includes
700 fixes to gdb to support working with threaded apps.
701
702 Branch: wrstuden-revivesa
703 Description: Fix a number of issues present with Scheduler Activations.
704 Status: Active
705 Start Date: 10 May 2008
706 End Date:
707 Base Tag: wrstuden-revivesa-base
708 Maintainer: Bill Stouder-Studenmund <wrstuden (a] NetBSD.org>
709 Scope: src, though all the interesting stuff is in the kernel
710 Notes: This branch is intended to revive Scheduler Activations
711 in -current in the 5.0 era. This branch's main goal is
712 to re-add syscall compatability so that SA-based libpthread
713 programs can run with a -current kernel. 1:1 threading will
714 remain the NetBSD-default. This branch will re-add necessary
715 upcall support, and will also serve as a chance to clean
716 out cruft that had accumulated in the implementation over
717 time.
718
719 Branch: yamt-kmem
720 Description:
721 - separate kernel va allocation from kernel fault handling.
722 - make kmem_alloc interrupt-safe.
723 Status: Active
724 Start Date: Sun Dec 9 2007
725 End Date:
726 Base Tag: yamt-kmem-base3
727 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
728 Scope: src/sys (src/common is tagged but not branched)
729 Notes:
730 todo:
731 - investigate if PMAP_PREFER equivalent can be done
732 with vmem_xalloc. find a tester with hardware for it.
733 - g/c replaced code, including kmapent and malloc.
734 - consider to remove other submaps. eg. mb_map
735
736 Branch: yamt-nfs-mp
737 Description: make nfs client mp-safe
738 Status: Active
739 Start Date: Sun Apr 27 2008
740 End Date:
741 Base Tag: yamt-nfs-mp-base11
742 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
743 Scope: src/sys (src/common is tagged but not branched)
744 Notes:
745
746 Branch: yamt-pagecache
747 Description: page cache related changes
748 Status: Active
749 Start Date: Wed Nov 2 2011
750 End Date:
751 Base Tag: yamt-pagecache-base8
752 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
753 Scope: src
754 Notes: - maintain object pages in radix tree rather than rb tree.
755 - shrink the size of vm_page.
756 - reduce unnecessary page scan in putpages. esp. when an
757 object has a ton of pages cached but only a few of them
758 are dirty.
759 - reduce the number of pmap operations by tracking page
760 dirtiness more precisely in uvm layer.
761 - fix nfs commit range tracking.
762 - fix nfs write clustering. XXX hack
763 - fix A->O loaning
764 - write radixtree(9) man page
765
766 TODO:
767 - benchmark
768 - test
769 - make the write clustering fix less kludgy
770 - fix or disable the ad-hoc per-cpu statistic
771 - disable A->O loan as its benefit is unclear at best
772
773 tested: i386, amd64, nfs, ffs
774
775 have good chances to be broken: lfs, sparc64, hp700
776
777 the following is kernel build test results.
778 most of NG seem unrelated to the changes in the branch.
779
780 acorn26 GENERIC OK
781 acorn32 GENERIC OK
782 algor P6032 NG
783 alpha GENERIC OK
784 alpha GENERIC.MP OK
785 amd64 GENERIC OK
786 amd64 XEN3_DOM0 OK
787 amd64 XEN3_DOMU OK
788 amiga GENERIC OK
789 amigappc GENERIC OK
790 arc GENERIC OK
791 atari MILAN-PCIIDE OK
792 bebox GENERIC OK
793 cats GENERIC OK
794 cesfic GENERIC OK
795 cobalt GENERIC OK
796 dreamcast GENERIC NG
797 emips GENERIC OK
798 evbarm NSLU2 NG
799 evbarm TS7200 NG
800 evbmips P6032 NG
801 evbmips MALTA NG
802 evbppc WALNUT NG
803 evbppc EXPLORA451 NG
804 evbppc PMPPC NG
805 evbsh3 COMPUTEXEVB OK
806 ews4800mips GENERIC OK
807 hp300 GENERIC OK
808 hp700 GENERIC OK
809 hpcarm JORNADA720 OK
810 hpcarm JORNADA728 OK
811 hpcmips GENERIC OK
812 hpcsh GENERIC OK
813 hpcsh HPW650PA OK
814 i386 MONOLITHIC OK
815 i386 GENERIC OK
816 i386 XEN3_DOM0 OK
817 i386 XEN3_DOMU OK
818 i386 ALL NG
819 ia64 GENERIC OK
820 ia64 GENERIC.SKI NG
821 ibmnws GENERIC OK
822 iyonix GENERIC NG
823 landisk GENERIC OK
824 luna68k GENERIC OK
825 mac68k GENERIC OK
826 macppc GENERIC OK
827 macppc GENERIC.MP OK
828 mipsco GENERIC OK
829 mmeye GENERIC OK
830 mvme68k GENERIC OK
831 mvmeppc GENERIC OK
832 netwinder GENERIC NG
833 news68k GENERIC OK
834 newsmips GENERIC OK
835 next68k GENERIC OK
836 ofppc GENERIC OK
837 ofppc GENERIC.MP NG
838 pmax GENERIC OK
839 prep GENERIC OK
840 rs6000 GENERIC NG
841 sandpoint GENERIC OK
842 sbmips GENERIC NG
843 sbmips GENERIC.MP NG
844 sgimips GENERIC32_IP3x OK
845 shark GENERIC NG
846 sparc GENERIC OK
847 sparc GENERIC.MP OK
848 sparc64 GENERIC OK
849 sun2 GENERIC OK
850 sun3 GENERIC OK
851 usermode GENERIC NG
852 vax GENERIC OK
853 vax GENERIC.MP OK
854 x68k GENERIC OK
855 zaurus GENERIC NG
856
857 Branch: reinoud-bufcleanup
858 Description: implement and evaluate struct buf usage cleanup strategies.
859 Ideas currently in mind (preference for b):
860 a)
861 1. use of bio_ops per buffer.
862 2. allow chaining/overloading of functions in bio_ops
863 and provide some private context.
864 3. extend the bio_ops with commonly used functionality
865 like pending action counting, custom context passing,
866 last minute processing of buffer data, buffer cache
867 etc.
868 4. investigate the use of the kcont()
869 continuation-passing framework for async io
870 completion notification for bufs
871 ...
872 b)
873 1. all sequencing use of B_CALL replaced by
874 device-threads, if possible generic code around BUFQ
875 2. possibly use kcont() for async IO finished signaling
876 3. counter of pending and queued actions requestable
877 by IOCTL interface?
878 4. implement `last minute buffer fixup' calls and maybe
879 even finished I/O calls as vnode operations
880 ...
881 Status: Active
882 Start Date: Thu Mar 15 2007
883 End Date:
884 Base Tag: reinoud-bufcleanup-base
885 Maintainer: Reinoud Zandijk <reinoud (a] NetBSD.org>
886 Scope: src/sys and src/common
887 Notes: Used as experiment sandbox and if successful hopefully one day
888 to be integrated.
889
890 Branch: pgoyette-compat
891 Description: clean-up of compat module
892 Status: Active
893 Start Date: Tues Mar 6, 2018
894 End Date:
895 Base Tag: pgoyette-compat-base
896 Maintainer: pgoyette
897 Scope: src/
898 Notes:
899
900
901 ########################################################################
902 # Individual developers' branches (Terminated):
903 ########################################################################
904
905 Branch: prg-localcount2
906 Description: Implement localcount reference counting as proposed by
907 riastradh@ - supersedes abandonded pgoyette-localcount
908 Status: Suspended - core of the changes were merged to HEAD
909 Start Date: Wed Apr 26 2017
910 End Date:
911 Base Tag: prg-localcount2-base
912 Maintainer: pgoyette
913 Scope: src/sys/
914 Notes:
915
916 Branch: pgoyette-localcount
917 Description: Implement localcount reference counting as proposed by
918 riastradh@
919 Status: Terminated
920 Start Date: Fri Jul 15 2016
921 End Date: Wed Apr 26 2017
922 Base Tag: pgoyette-localcount-base
923 Maintainer: pgoyette
924 Scope: src/sys/
925 Notes: Abandoned - there seems to have been some CVS "pilot
926 error during one of the sync-with-head and now there
927 are an unknown number of commits missing from an
928 unknown number of files from an unknown time period.
929 The work will be salvaged as much as possible, and
930 applied to a new clean branch.
931
932 Branch: bouyer-scsipi
933 Description: Integration of atapi support
934 Status: Terminated
935 Start Date:
936 End Date:
937 Base Tag:
938 Maintainer: Manuel Bouyer <bouyer (a] NetBSD.org>
939 Scope: kernel
940 Notes: Superseded by thorpej_scsipi
941
942 Branch: bouyer-xen2
943 Description: update xen port to xen 2.0, with support for domain0 operations
944 Status: Terminated
945 Start Date: Dec 13 2004
946 End Date: Mar 10 2005
947 Base Tag: netbsd-2-base
948 Maintainer: Manuel Bouyer <bouyer (a] NetBSD.org>
949 Scope: src/sys/arch/xen
950 Notes:
951
952 Branch: bouyer-xenamd64
953 Description: add amd64 support to Xen and rework some parts to share more code between Xen and others
954 Status: Terminated
955 Start Date: 18 Oct 2007
956 End Date: 22 Nov 2007
957 Base Tag: bouyer-xenamd64-base
958 Maintainer: Manuel Bouyer <bouyer (a] NetBSD.org>
959 Scope: kernel
960 Notes:
961
962 Branch: bouyer-xeni386
963 Description: switch xen on i386 to the x86 pmap and the xen/x86/x86_xpmap.c bootstrap, and add i386 PAE support
964 Status: Terminated
965 Start Date: 10 Dec 2007
966 End Date: 23 Jan 2008
967 Base Tag: bouyer-xeni386-base
968 Maintainer: Manuel Bouyer <bouyer (a] NetBSD.org>
969 Scope: kernel
970 Notes:
971
972 Branch: bouyer-quota2
973 Description: modernise disk quotas
974 Status: Terminated
975 Start Date: Thu Jan 20 2011
976 End Date: March 06 2011
977 Base Tag: bouyer-quota2-base
978 Maintainer: Manuel Bouyer <bouyer (a] NetBSD.org>
979 Scope: src/
980 Notes:
981
982 Branch: chap-midi
983 Description: Renovation of MIDI support
984 Status: Terminated; merged to -current
985 Start Date: 19 May 2006
986 End Date: 30 Jun 2006
987 Base Tag: chap-midi-base
988 Maintainer: Chapman Flack <chap (a] NetBSD.org>
989 Scope: sys, share/man, usr.bin
990 Notes:
991
992 Branch: chs-ubc
993 Description: Unified Buffer Cache
994 Status: Terminated
995 Start Date:
996 End Date:
997 Base Tag: chs-ubc-base
998 Maintainer: Chuck Silvers <chs (a] NetBSD.org>
999 Scope: kernel
1000 Notes:
1001
1002 Branch: chs-ubc2
1003 Description: Unified Buffer Cache
1004 Status: Terminated; merged to -current
1005 Start Date:
1006 End Date:
1007 Base Tag: chs-ubc2-base, chs-ubc2-newbase
1008 Maintainer: Chuck Silvers <chs (a] NetBSD.org>
1009 Scope: kernel
1010 Notes:
1011
1012 Branch: cjs-build-against-obj-dir
1013 Description: ?
1014 Status: ?
1015 Start Date:
1016 End Date:
1017 Base Tag:
1018 Maintainer: Curt Sampson <cjs (a] NetBSD.org>
1019 Scope: Entire tree.
1020 Notes:
1021
1022 Branch: cube-autoconf
1023 Description: Renovate autoconf(9) API
1024 Status: Terminated; abandoned
1025 Start Date: 11 Dec 2007
1026 End Date:
1027 Base Tag: cube-autoconf-base
1028 Maintainer: Quentin Garnier <cube (a] NetBSD.org>
1029 Scope: kernel usr.bin/config (and some other userland bits)
1030 Notes: Address a number of issues the current autoconf(9) API has.
1031
1032 Branch: eeh-paddr_t
1033 Description: use separate types for virtual vs. physical addresses
1034 Status: Terminated; merged to -current
1035 Start Date:
1036 End Date:
1037 Base Tag: eeh-paddr_t-base
1038 Maintainer: Eduardo Horvath <eeh (a] NetBSD.org>
1039 Scope: kernel
1040 Notes: This is needed to support 32-bit kernels on sparc64.
1041
1042 Branch: elad-kernelauth
1043 Description: Native NetBSD implementation of Apple's kernel authorization
1044 based on TN2127. This is a "clean-room" implementation to
1045 avoid any licensing issues.
1046 Status: Terminated; merged to -current
1047 Start Date: Tue Mar 7 2006
1048 End Date: Mon May 15 2006
1049 Base Tag: elad-kernelauth-base
1050 Maintainer: Elad Efrat <elad (a] NetBSD.org>
1051 Scope: src/sys, src/share/man/man9/Makefile,
1052 src/share/man/man9/kauth.h, src/distrib/sets/lists/comp/mi
1053 Notes:
1054
1055 Branch: fvdl-softdep
1056 Description: FFS soft dependencies
1057 Status: Terminated; merged to -current
1058 Start Date:
1059 End Date:
1060 Base Tag: fvdl-softdep-base
1061 Maintainer: Frank van der Linden <fvdl (a] NetBSD.org>
1062 Scope: kernel
1063 Notes:
1064
1065 Branch: gehenna-devsw
1066 Description: auto-generation of devsw table
1067 Status: Terminated
1068 Start Date: 16 May 2002
1069 End Date: 6 Sep 2002
1070 Base Tag: gehenna-devsw-base
1071 Maintainer: MAEKAWA Masahide <gehenna (a] NetBSD.org>
1072 Scope: syssrc
1073 Notes: The goal is to get rid of the existing device switch tables in
1074 port-dependent conf.c and to generate them dynamically by
1075 config(8).
1076
1077 Branch: haad-dm
1078 Description: Add support for LVM to NetBSD
1079 Status: Terminated; merged with -current
1080 Start Date: 7 July 2008
1081 End Date: 19 December 2008
1082 Base Tag: haad-dm-base
1083 Maintainer: Adam Hamsik <haad (a] NetBSD.org>
1084 Scope: kernel
1085 Notes: LVM support is based on Linux lvm2tools,
1086 libdevmapper library and NetBSD device-mapper
1087 driver.
1088
1089 Branch: is-newarp
1090 Description: ARP for non-Ethernet
1091 Status: Terminated; merged before NetBSD 1.3
1092 Start Date: 1996/10/13
1093 End Date: 1997/03/15
1094 Base Tag: is-newarp-base
1095 Maintainer: Ignatios Souvatzis <is (a] NetBSD.org>
1096 Scope: kernel
1097 Notes:
1098
1099 Branch: jmcneill-pm
1100 Description: Power management framework overhaul, ACPI improvements
1101 Status: Terminated; merged before NetBSD 5.0
1102 Start Date: 3 Aug 2007
1103 End Date: 9 Dec 2007
1104 Base Tag: jmcneill-pm-base
1105 Maintainer: Jared D. McNeill <jmcneill (a] NetBSD.org>
1106 Scope: kernel
1107 Notes:
1108
1109 Branch: jmcneill-audiomp3
1110 Description: Add MP locking to the audio drivers
1111 Status: Terminated; merged before NetBSD 6.0
1112 Start Date: 19 Nov 2011
1113 End Date: 23 Nov 2011
1114 Base Tag: jmcneill-audiomp3-base
1115 Maintainer: Jared D. McNeill <jmcneill (a] NetBSD.org>
1116 Scope: kernel
1117 Notes: Resurrect ad-audiomp2, make the audio drivers MP safe.
1118
1119 Branch: kenh-if-detach
1120 Description: Interface detach support.
1121 Status: ?
1122 Start Date:
1123 End Date:
1124 Base Tag: kenh-if-detach-base
1125 Maintainer: Ken Hornstein <kenh (a] NetBSD.org>
1126 Scope: kernel
1127 Notes:
1128
1129 Branch: kent-audio1
1130 Description: Audio converter pipeline
1131 Status: Terminated; merged to -current
1132 Start Date: Tue Dec 7 2004
1133 End Date: Tue Jan 11 2005
1134 Base Tag: kent-audio1-base
1135 Maintainer: TAMURA Kent <kent (a] NetBSD.org>
1136 Scope: kernel (audio device drivers)
1137 Notes: http://mail-index.netbsd.org/tech-kern/2004/12/03/0007.html
1138 Please consult with the maintainer before committing
1139 to this branch.
1140
1141 Branch: kqueue
1142 Description: kqueue kernel event notification mechanism (from FreeBSD)
1143 Status: Terminated; merged to -current
1144 Start Date: Tue Jul 10 23:08:38 EST 2001
1145 End Date: Tue Oct 24 09:14:14 GMT 2002
1146 Base Tag: kqueue-base
1147 Maintainer: Jaromir Dolecek <jdolecek (a] NetBSD.org>
1148 Scope: kernel, libc/sys, share/man/man9, usr.bin/fstat
1149 Notes: Integration of FreeBSD's kqueue(2) mechanism, with various
1150 local internal changes to better suit NetBSD, and
1151 enhancements such as looking up filters by name or
1152 number, and dynamic registration of "user" filters.
1153 The work is complete as is, but is awaiting more
1154 feedback from various kernel gurus before going mainline.
1155
1156 Branch: ktrace-lwp
1157 Description: ktrace support for lwp ids.
1158 Status: Terminated; merged to -current
1159 Start Date: Wed Jul 2 15:27:30 UTC 2003
1160 End Date: Sun Dec 11 12:25:29 UTC 2005
1161 Base Tag: ktrace-lwp-base
1162 Maintainer: Darren Reed <darrenr (a] NetBSD.org>
1163 Scope: sys
1164 Notes:
1165
1166 Branch: marc-pcmcia
1167 Description: PCMCIA support
1168 Status: Terminated; merged to -current
1169 Start Date:
1170 End Date:
1171 Base Tag: marc-pcmcia-base, marc-pcmcia-bp
1172 Maintainer: Marc Horowitz <marc (a] NetBSD.org>
1173 Scope: kernel
1174 Notes:
1175
1176 Branch: matt-armv6
1177 Description: Rototill the arm code to support features present in the
1178 v6 of the ARM Architecture. Additionally, clean up things
1179 along the way to use common practices.
1180 Status: Terminated; merged to -current
1181 Start Date: 2007-08-27
1182 End Date: 2008-04-27
1183 Base Tag: matt-armv6-base
1184 Maintainer: Matt Thomas <matt (a] NetBSD.org>
1185 Scope: kernel & userland
1186 Notes:
1187
1188 Branch: minoura_x68k_bus_h
1189 Description: bus_space(9) and bus_dma(9) implementation for x68k
1190 Status: Terminated; merged to -current
1191 Start Date: 23 Dec 1998
1192 End Date: 16 Mar 1999
1193 Base Tag: minoura_x68k_bus_h-base
1194 Maintainer: Minoura Makoto <minoura (a] NetBSD.org>
1195 Scope: sys/arch/x68k
1196 Notes:
1197
1198 Branch: minoura-xpg4dl
1199 Description: Citrus Project locale subsystem
1200 Status: Terminated; (partly) merged to -current
1201 Start Date: 28 March 2000
1202 End Date:
1203 Base Tag: minoura-xpg4dl-base
1204 Maintainer: Minoura Makoto <minoura (a] NetBSD.org>
1205 Scope: basesrc, syssrc, sharesrc
1206 Notes: Citrus Project is developing dynamically-loadable, codeset-
1207 independent locale subsystem. Part of the implementation
1208 (LC_CTYPE) called XPG4DL is now integrated to -current.
1209
1210 Branch: mjf-devfs
1211 Description: device file system supporting dynamic device nodes
1212 Status: Terminated
1213 Start Date: 12 November 2007
1214 End Date: 21 February 2008
1215 Base Tag: mjf-devfs-base
1216 Maintainer: Matt Fleming <mjf (a] NetBSD.org>
1217 Scope: kernel and userland
1218 Notes: This branch will move away from the static device nodes that
1219 are created with MAKEDEV scripts and allow nodes to be created
1220 and removed dynamically as devices are attached and detached
1221 from the machine.
1222
1223 Branch: mrg-vm-swap
1224 Description: dynamic swap allocation, swap-to-files support
1225 Status: Terminated; abandoned for mrg-vm-swap2
1226 Start Date: 12 February 1997
1227 End Date: 15 March 1997
1228 Base Tag: [none]
1229 Maintainer: Matthew R. Green <mrg (a] NetBSD.org>
1230 Scope: kernel
1231 Notes:
1232
1233 Branch: mrg-vm-swap2
1234 Description: dynamic swap allocation, swap-to-files support
1235 Status: Terminated; merged to -current
1236 Start Date: 4 May 1997
1237 End Date: 12 June 1997
1238 Base Tag: mrg-vm-swap2-base
1239 Maintainer: Matthew R. Green <mrg (a] NetBSD.org>
1240 Scope: kernel
1241 Notes:
1242
1243 Branch: nathanw_sa
1244 Description: Scheduler activations
1245 Status: Terminated; merged to -current
1246 Start Date: 5 March 2001
1247 End Date: 18 January 2003
1248 Base Tag: nathanw_sa_base
1249 Maintainer: Nathan Williams <nathanw (a] NetBSD.org>
1250 Scope: kernel, libc, libkvm, libpthread, libpthread_dbg, include,
1251 bin/ps usr.bin/systat usr.bin/top usr.bin/w
1252 gnu/dist/toolchain/gdb gnu/usr.bin/gdb
1253 Notes: The idea of scheduler activations is described in the
1254 classic paper by Anderson et al., in ACM Transactions
1255 a on Computer Systems volume 10 issue 1 (1992),which
1256 can be found at
1257 http://www.acm.org/pubs/citations/journals/tocs/1992-10-1/p53-anderson/
1258 Many ideas in the implementation are based on the
1259 implementation of scheduler activations added to Mach
1260 3.0 and described by Davis et al. in the University of
1261 Washington CS tech report 92-08-93, which can be found
1262 at
1263 ftp://ftp.cs.washington.edu/tr/1992/08/UW-CSE-92-08-03.PS.Z
1264
1265 My USENIX paper on the subject can be found at
1266 http://web.mit.edu/nathanw/www/usenix/
1267
1268 Please consult with the maintainer before committing
1269 to this branch.
1270 Other tags starting with nathanw_sa reserved for
1271 branch management and are not guaranteed to be stable.
1272
1273 Trunk tagged with "nathanw_sa_before_merge" prior to
1274 merging branch down to trunk. Branch tagged with
1275 "nathanw_sa_end" to indicate the ending revision of
1276 the branch.
1277
1278 Branch: newlock
1279 Description: New locking primitives, based on Solaris's
1280 Status: Terminated
1281 Start Date: March 9, 2002
1282 End Date: February 12, 2007
1283 Base Tag: newlock-base
1284 Maintainer: Jason R. Thorpe <thorpej (a] NetBSD.org>
1285 Scope: Kernel
1286 Notes: The goal is to replace the existing lockmgr() and
1287 simple_lock() based locking mechanisms with the
1288 primitives found in Solaris: mutexes and rwlocks.
1289 Superseded by the newlock2 branch.
1290
1291 Branch: newlock2
1292 Description: New locking primitives, based on Solaris's
1293 Status: Terminated
1294 Start Date: September 9, 2006
1295 End Date: February 12, 2007
1296 Base Tag: newlock2-base
1297 Maintainer: Andrew Doran <ad (a] NetBSD.org>
1298 Scope: Kernel
1299 Notes: As per the newlock branch, however given the amount of time
1300 the original branch has lain dormant, a new one has been
1301 created. Goals:
1302 - Implement new locking primitives on most-used ports.
1303 - Minor locking improvements.
1304 - Remove spinlockmgr().
1305
1306 Branch: nick-csl-alignment
1307 Description: Provide correctly aligned __cpu_simple_lock_t for hppa
1308 Status: Terminated; merged to -current
1309 Start Date: 2007-07-18
1310 End Date:
1311 Base Tag: nick-csl-alignment-base5
1312 Maintainer: Nick Hudson <skrll (a] NetBSD.org>
1313 Scope: sys, lib/libpthread, lib/libpthread_dbg
1314 Notes:
1315
1316 Branch: perseant-lfsv2
1317 Description: LFS incompatible on-disk data structure changes
1318 Status: Terminated
1319 Start Date: 27 June 2001
1320 End Date: 16 July 2001
1321 Base Tag: perseant-lfsv2-base
1322 Maintainer: Konrad Schroder <perseant (a] NetBSD.org>
1323 Scope: basesrc/{sbin/*lfs,libexec/lfs_cleanerd,usr.sbin/dumplfs}, syssrc/sys/ufs
1324 Notes: This branch should be short-lived, I expect to merge as soon
1325 as the data structures required for unremove are in and tested.
1326
1327 Branch: ppcoea-renovation
1328 Description: General renovation and cleanup of all OEA PowerPC ports.
1329 Status: Terminated; merged to -current
1330 Start Date: 30 April 2007
1331 End Date: 15 October 2007
1332 Base Tag: ppcoea-renovation-base
1333 Maintainer: Tim Rightnour <garbled (a] netbsd.org>
1334 Scope: src/sys/arch
1335 Notes: This branch is for a general cleanup of all OEA-based PowerPC
1336 ports. OEA (Operating Environment Architecture) PowerPC refers
1337 to the 601, 603, 604, and similar chips. Specifically, not the
1338 403/401 and other embedded chips. The general concept is to get
1339 them all compiling, and sharing as much code as possible. All
1340 developers are welcome to commit to this branch.
1341
1342 Branch: thorpej-devvp
1343 Description: replace dev_t with struct vnode * in devsw entry points
1344 Status: Terminated
1345 Start Date: Sep 6 2001
1346 End Date: ???
1347 Base Tag: thorpej-devvp-base
1348 Maintainer: Jason Thorpe <thorpej (a] NetBSD.org>
1349 Scope: syssrc
1350 Notes: Kernels built from this branch are not expected
1351 to function correctly at this time.
1352
1353 Ports known to compile on this branch:
1354 alpha
1355 i386
1356
1357 Branch: peter-altq
1358 Description: New ALTQ framework:
1359 - sync with KAME sources
1360 - share mtag/name mapping functions
1361 - separate altq + pf attachment
1362 Status: Terminated; merged to -current
1363 Start Date: March 16, 2006
1364 End Date: October 12, 2006
1365 Base Tag: peter-altq-base
1366 Maintainer: Peter Postma <peter (a] NetBSD.org>,
1367 Martin Husemann <martin (a] NetBSD.org>,
1368 Matthias Scheler <tron (a] NetBSD.org>
1369 Scope: dist/pf dist/ipf distrib/sets/lists sys usr.sbin/altq
1370 Notes: Only the first item in the description was finished
1371 in this branch.
1372
1373 Branch: rmind-uvmplock
1374 Description: Reorganize locking in UVM and improve x86 pmap(9)
1375 Status: Terminated; merged to -current
1376 Start Date: 15 March 2010
1377 End Date: 12 June 2011
1378 Base Tag: rmind-uvmplock-base
1379 Maintainer: Mindaugas Rasiukevicius <rmind (a] netbsd.org>
1380 Scope: Kernel
1381 Notes: Goals:
1382
1383 - Reorganize locking in UVM and serialize pmap(9) operations
1384 on same page(s). New lock order: [vmpage-lock] -> pmap-lock.
1385 Based on the patch from ad@.
1386 - Simplify locking in pmap(9) modules by removing P->V locking.
1387 - Use mutex_obj(9) on vmobjlock (and thus vnode_t::v_interlock)
1388 to share locks among UVM objects where necessary.
1389 - Rewrite and optimize x86 TLB shootdown code.
1390 - Unify /dev/mem et al in MI code and provide required locking.
1391
1392 Future work:
1393
1394 - Optimize pmap_remove() with tracking in struct vm_map_entry.
1395
1396 Branch: sommerfeld_i386mp_1
1397 Description: Multiprocessor support for i386 using Intel MP BIOS.
1398 Status: Terminated; merged to -current
1399 Start Date: 21 Feb 2000
1400 End Date: 01 Oct 2002
1401 Base Tag: sommerfeld_i386mpbase_1
1402 Maintainer: Bill Sommerfeld <sommerfeld (a] NetBSD.org>
1403 Scope: sys/arch/i386
1404 Notes:
1405 Code committed to the branch has booted to multiuser
1406 on at least one system.
1407
1408 Not guaranteed to compile against mainline since -current
1409 may have changed incompatibly with the last branch update;
1410 use "cvs update -D" to roll-back the rest of the tree to match.
1411
1412 Please get explicit permission from the maintainer
1413 before each commit, or your changes will be backed out.
1414 Other tags starting with sommerfeld_ are private to
1415 the developer and are guaranteed to be unstable.
1416 Only the maintainer should move tags.
1417
1418 Note that this branch uses a DIFFERENT scheme for
1419 syncing with the mainline. the maintainer uses some private
1420 scripts for keeping them in sync; if you make commits
1421 to the branch to "resynchronize" things, you'll
1422 probably do it wrong; instead, ask the maintainer to
1423 resynchronize things.
1424
1425 See sys/arch/i386/TODO on the branch for a list of known
1426 issues with the branch.
1427
1428 Branch: thorpej-mips-cache
1429 Description: overhaul MIPS cache support code
1430 Status: Terminated; merged to -current
1431 Start Date: Oct 23 2001
1432 End Date: Nov 14 2001
1433 Base Tag: thorpej-mips-cache-base
1434 Scope: syssrc
1435 Notes: This branch needs more debugging, testing, and more
1436 ports need to be converted to the new world order.
1437
1438 The following processors have had cache ops
1439 written:
1440
1441 * R2000/R3000 (cache_r3k) -- light testing,
1442 needs to be beat on a lot more to make
1443 sure it's working.
1444
1445 * R4000/R4400 (cache_r4k) -- mhitch (a] NetBSD.org
1446 tracked down a bug, which has been fixed.
1447
1448 Confirmed working on R4000-with-L2.
1449
1450 Confirmed working on R4400-no-L2 and
1451 R4400-with-L2.
1452
1453 * R4600/R5000 (cache_r5k) -- shin (a] NetBSD.org
1454 has committed fixes to this code.
1455
1456 Confirmed working on R4600 v2 (SGI IP-22 with
1457 no SysAD L2 cache).
1458
1459 Confirmed working on RM5260 (Algorithmics P-5064).
1460
1461 * TX39 (cache_tx39) -- uch (a] NetBSD.org has
1462 committed fixes to this code. Awaiting
1463 confirmation that it is working properly.
1464
1465 * R5900 (cache_r5900) -- uch (a] NetBSD.org has
1466 written this code and tested it on a
1467 PlayStation 2.
1468
1469 The following ports have been updated to compile (and
1470 use optimized-for-processor bus_dma routines). Those
1471 that have been tested and work are marked with [WORKING].
1472
1473 * algor [WORKING]
1474
1475 * arc [WORKING]
1476
1477 * pmax [WORKING]
1478
1479 * playstation2 [WORKING]
1480 Needs optimized bus_dmamap_sync().
1481
1482 * hpcmips [need verification that this is working]
1483 Needs optimized bus_dmamap_sync().
1484
1485 * sgimips [WORKING]
1486 Needs optimized bus_dmamap_sync().
1487
1488 * cobalt [need testing]
1489
1490 * mipsco [need testing]
1491
1492 * newsmips [need testing]
1493
1494 Branch: thorpej_scsipi
1495 Description: SCSI/ATAPI midlayer rewrite.
1496 Status: Terminated; merged to -current
1497 Start Date:
1498 End Date: Apr 25 2001
1499 Base Tag: thorpej_scsipi_base, thorpej_scsipi_nbase
1500 Maintainer: Manuel Bouyer <bouyer (a] NetBSD.org>,
1501 Jason Thorpe <thorpej (a] NetBSD.org>
1502 Scope: syssrc
1503 Notes: When a change from -current is pulled up please move the
1504 thorpej_scsipi_base tag to the revision you're syncing with.
1505 thorpej_scsipi_nbase is private to maintainer (only
1506 used when syncing the whole branch with HEAD).
1507 Just before the merge, syssrc has been tagged with
1508 thorpej_scsipi_beforemerge
1509
1510 Branch: thorpej-signal
1511 Description: ?
1512 Status: ?
1513 Start Date:
1514 End Date:
1515 Base Tag: thorpej-signal-base
1516 Maintainer: Jason Thorpe <thorpej (a] NetBSD.org>
1517 Scope: kernel
1518 Notes:
1519
1520 Branch: thorpej-setroot
1521 Description: ?
1522 Status: Terminated; merged to -current
1523 Start Date:
1524 End Date:
1525 Base Tag:
1526 Maintainer: Jason Thorpe <thorpej (a] NetBSD.org>
1527 Scope: kernel
1528 Notes:
1529
1530 Branch: simonb-timecounters
1531 Description: Port FreeBSD timecounters to NetBSD
1532 Status: Terminated
1533 Start Date: Sat Feb 04 2006
1534 End Date: Wed Jun 07 2006
1535 Base Tag: simonb-timecounters-base
1536 Maintainer: Simon Burge <simonb (a] NetBSD.org>,
1537 Frank Kardel <kardel (a] NetBSD.org>
1538 Scope: sys, sbin/savecore, usr.bin/vmstat, usr.sbin/ntp
1539 Notes: early (partial conversion) commit to -current
1540 ok'ed by core@ on 20060605 for testing and further
1541 simplified conversion
1542
1543 Branch: simonb-wapbl
1544 Description: Wasabi's journaling filesystem support
1545 Status: Terminated; merged to -current
1546 Start Date: Tue Jun 10 2008
1547 End Date: Thu Jul 31 2008
1548 Base Tag: simonb-wapbl-base
1549 Maintainer: Simon Burge <simonb (a] NetBSD.org>
1550 Scope: src/distrib/sets/lists/comp src/distrib/utils/sysinst
1551 src/include
1552 src/sbin/fsck_ffs src/sbin/fsdb src/sbin/mount_ffs
1553 src/sbin/tunefs src/usr.sbin/dumpfs src/sys
1554 Notes: Still has a number of issues:
1555 - Some heavy workload performance issues on SMP machines.
1556 Work around this issue by turning on WAPBL_DEBUG_SERIALIZE
1557 in rev 1.1.2.11 of vfs_wapbl.c.
1558 - Removing large files (sparse only?) takes a long time.
1559 Eg, a file created with
1560 dd if=/dev/zero of=foox bs=1 count=1 seek=11261748520550
1561 takes 0:00.00 to remove on my test box without logging and
1562 0:22.25 to remove with logging. No disk IO during this...
1563 - sysinst should use in-fs logs now, not end-of-partition logs.
1564
1565 Branch: uebayasi-xip
1566 Description: Support eXecute-In-Place (XIP)
1567 Status: Active
1568 Start Date: 8 February 2010
1569 End Date:
1570 Base Tag: uebayasi-xip-base6 (2010-11-15 UTC)
1571 Maintainer: Masao Uebayashi <uebayasi (a] NetBSD.org>
1572 Scope: src/external/gpl3/binutils/usr.sbin/mdsetimage/mdsetimage.8
1573 src/include
1574 src/sbin/mount
1575 src/sbin/mount_ffs
1576 src/share/man/man4
1577 src/share/man/man5/statvfs.5
1578 src/share/man/man9
1579 src/sys/arch
1580 src/sys/common/pmap
1581 src/sys/conf
1582 src/sys/dev/flash.c
1583 src/sys/dev/flashvar.h
1584 src/sys/dev/md.c
1585 src/sys/dev/md.h
1586 src/sys/dev/md_root.c
1587 src/sys/dev/xmd.c
1588 src/sys/kern/vfs_syscalls.c
1589 src/sys/miscfs/genfs/genfs_io.c
1590 src/sys/miscfs/specfs/specdev.h
1591 src/sys/sys
1592 src/sys/ufs/ffs/ffs_vfsops.c
1593 src/sys/uvm
1594 src/usr.sbin/mdsetimage/mdsetimage.8
1595 Notes: Goals:
1596 - Clean up oddities in fault handler
1597 - Add a notion of device page
1598 - Teach XIP vnode VOP_GETPAGES
1599 - Hook XIP mount option
1600 - Teach some pmaps to handle device page
1601
1602 Branch: vmlocking
1603 Description: Make VM and file system framework MP safe
1604 Status: Terminated
1605 Start Date: 13 March 2007
1606 End Date: 4 December 2007
1607 Base Tag: vmlocking-base
1608 Maintainer: Andrew Doran <ad (a] NetBSD.org>
1609 Scope: kernel
1610 Notes: Superseded by vmlocking2 branch.
1611
1612 Branch: vmlocking2
1613 Description: Make VM and file system framework MP safe
1614 Status: Terminated
1615 Start Date: 4 December 2007
1616 End Date: 2 January 2008
1617 Base Tag: vmlocking2-base3
1618 Maintainer: Andrew Doran <ad (a] NetBSD.org>
1619 Scope: kernel
1620 Notes: Goals:
1621
1622 - Make VM system / trap handling MP safe.
1623 - Replace simplelocks with mutexes.
1624 - Make file system framework MP safe.
1625
1626 Status by architecture:
1627
1628 alpha done
1629 i386 done
1630 amd64 done
1631 mips done
1632 sparc need pmap/trap locking changes
1633 sparc64 done
1634 arm done
1635 powerpc done
1636 hppa done
1637 sh3 done
1638 m68k done
1639 xen need pmap/trap locking changes
1640
1641 Remaining MI work to do:
1642
1643 - Check aliased vnode handling. There may be problems.
1644
1645 Remaining problems:
1646
1647 - LFS stalls due to v_numoutput leak.
1648
1649 Branch: wrstuden-devbsize
1650 Description: Modify buffer cache to deal with different devices having
1651 different block sizes. Also DEV_BSIZE would go away.
1652 Status: Terminated
1653 Start Date: Aug or Sept 1999
1654 End Date: 1 Apr 2000
1655 Base tag: wrstuden-devbsize-base
1656 Maintainer: Bill Studenmund <wrstuden (a] NetBSD.org>
1657 Scope: kernel
1658 Notes: No longer active due to lack of time, and introduction
1659 of UBC. In terms of UBC, the primary cache for
1660 file data is the VM cache, which needs to operate
1661 in terms of VM pages. As no existing device has native
1662 pages the same size as our VM pages, there already is
1663 a mapping going on between the VM system and the
1664 underlying blocks. So it would be easier and cleaner
1665 to adjust that to deal w/ different block sizes.
1666 Also with UBC, all i/o is in terms of bytes at an offset
1667 with a certain length, so the exact block size isn't a big
1668 deal.
1669
1670 Any other wrstuden-devbsize tag may (and should) go away.
1671
1672 Branch: yamt-idlelwp
1673 Description: idle lwp, and some changes depending on it.
1674
1675 1. separate context switching and thread scheduling.
1676 (cf. gmcgarry_ctxsw)
1677 2. implement idle lwp.
1678 3. clean up related MD/MI interfaces.
1679 4. make scheduler(s) modular.
1680
1681 Status: Terminated; merged to -current
1682 Start Date: Fri Feb 17 2007
1683 End Date: Thu May 17 2007
1684 Base Tag: yamt-idlelwp-base8
1685 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1686 Scope: src/sys (src/common is tagged but not branched)
1687 Notes:
1688 Status of ports:
1689 alpha [ Done, UP tested, MP not tested ]
1690 i386 [ Done, tested ]
1691 amd64 [ Done, tested ]
1692 mips [ Done, both MIPS1 and MIPS3 tested]
1693 sparc [ Done, UP tested, MP might have
1694 some problem after newlock2 merge ]
1695 sparc64 [ Done, tested ]
1696 arm [ Done, SA1 tested. See PR 36548 ]
1697 macppc/powerpc [ Done, OEA tested ]
1698 hppa [ Done, tested ]
1699 sh3 [ Done, tested ]
1700 vax [ Done, UP tested, MP untested ]
1701 m68k [ Done, tested on several ports ]
1702 ns32k [ broken ]
1703 ia64 [ broken ]
1704 pdp10 [ broken ]
1705
1706 How to adapt a port?
1707
1708 - unify cpu_switch, cpu_exit, cpu_switchto into
1709 a single cpu_switchto. see cpu_switchto.9.
1710
1711 - implement cpu_idle. see cpu_idle.9.
1712
1713 - add a flag argument to cpu_need_resched.
1714 handle RESCHED_IMMED flag, which means "cause a preemption
1715 as soon as possible." eg. in the case of MULTIPROCESSOR,
1716 send an IPI to the target cpu.
1717
1718 - "curlwp == NULL" is not a valid check for idle state anymore.
1719 use "(curlwp->l_flag & LW_IDLE) != 0" instead. curlwp is
1720 almost always non-NULL, with exceptions like early on boot.
1721
1722 - remove idle pcbs.
1723
1724 - (if MULTIPROCESSOR) tweak processor trampoline code.
1725
1726 - (if MULTIPROCESSOR) call mi_cpu_attach when attaching
1727 secondary processors.
1728
1729 - (if schedhz!=0) call schedclock regardless of the value of
1730 curlwp.
1731
1732 - of course, update MD users of scheduler/switching API.
1733
1734 Branch: yamt-lazymbuf
1735 Description: change the way to share mbuf external storage so that
1736 it can work without kernel_lock.
1737 Status: Terminated; merged to -current
1738 Start Date: Wed Jul 6 2005
1739 End Date: Mon Mar 24 2008
1740 Base Tag: yamt-lazymbuf-base14
1741 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1742 Scope: src/sys (src/common is tagged but not branched)
1743 Notes:
1744
1745 Branch: yamt-km, yamt-km-doc
1746 Description: simplify/improve kernel memory management and bootstrap
1747 Status: Terminated; merged to -current
1748 Start Date: Tue Jan 25 2005
1749 End Date: Fri Apr 1 2005
1750 Base Tag: yamt-km-base{,2,3,4}, yamt-km-doc-base
1751 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1752 Scope: yamt-km: src/sys
1753 yamt-km-doc: src/share/man/man9/uvm.9
1754 Notes: http://mail-index.NetBSD.org/tech-kern/2004/12/25/0005.html
1755
1756 the followings are per-port status.
1757 (account names mean "tested by".)
1758
1759 works enough to go to multiuser:
1760 alpha, i386, xen (yamt@)
1761 pc532 (simonb@)
1762 alpha, i386, mac68k, macppc, pmax, shark,
1763 sparc, sparc64, sun3, x68k (chs@)
1764 cobalt, dreamcast, hp300, news68k, newsmips,
1765 sun3x (tsutsui@)
1766 amiga (mhitch@)
1767 cats, hp700 (skrll@)
1768 xen (bouyer@)
1769
1770 known to have the same problem as trunk:
1771 vax (chs@, stuck while running kvm_mkdb)
1772
1773 known to have a problem:
1774 luna68k (and, if any, other m68k ports which use TTR)
1775 needs to be revisited.
1776 -> for luna68k, although not tested,
1777 Sysmap has been moved to avoid kva conflict with
1778 I/O ranges.
1779
1780 buildable:
1781 src/sys/arch/acorn26/conf/GENERIC
1782 src/sys/arch/acorn32/conf/GENERIC
1783 src/sys/arch/algor/conf/P6032
1784 src/sys/arch/alpha/conf/GENERIC
1785 src/sys/arch/alpha/conf/GENERIC.MP
1786 src/sys/arch/amd64/conf/GENERIC
1787 src/sys/arch/amd64/conf/GENERIC.MP
1788 src/sys/arch/amiga/conf/GENERIC
1789 src/sys/arch/arc/conf/GENERIC
1790 src/sys/arch/atari/conf/MILAN-PCIIDE
1791 src/sys/arch/bebox/conf/GENERIC
1792 src/sys/arch/cats/conf/GENERIC
1793 src/sys/arch/cesfic/conf/GENERIC
1794 src/sys/arch/cobalt/conf/GENERIC
1795 src/sys/arch/dreamcast/conf/GENERIC
1796 src/sys/arch/evbarm/conf/TS7200
1797 src/sys/arch/evbppc/conf/WALNUT
1798 src/sys/arch/evbsh3/conf/COMPUTEXEVB
1799 src/sys/arch/evbsh5/conf/CAYMAN64
1800 src/sys/arch/hp300/conf/GENERIC
1801 src/sys/arch/hp700/conf/GENERIC
1802 src/sys/arch/hpcarm/conf/JORNADA728
1803 src/sys/arch/hpcmips/conf/GENERIC
1804 src/sys/arch/hpcsh/conf/GENERIC
1805 src/sys/arch/hpcsh/conf/HPW650PA
1806 src/sys/arch/i386/conf/GENERIC
1807 src/sys/arch/i386/conf/GENERIC.MP
1808 src/sys/arch/i386/conf/XEN0
1809 src/sys/arch/i386/conf/XENU
1810 src/sys/arch/ibmnws/conf/GENERIC
1811 src/sys/arch/iyonix/conf/GENERIC
1812 src/sys/arch/luna68k/conf/GENERIC
1813 src/sys/arch/mac68k/conf/GENERIC
1814 src/sys/arch/macppc/conf/GENERIC
1815 src/sys/arch/macppc/conf/GENERIC.MP
1816 src/sys/arch/mipsco/conf/GENERIC
1817 src/sys/arch/mmeye/conf/GENERIC
1818 src/sys/arch/mvme68k/conf/GENERIC
1819 src/sys/arch/netwinder/conf/GENERIC
1820 src/sys/arch/news68k/conf/GENERIC
1821 src/sys/arch/newsmips/conf/GENERIC
1822 src/sys/arch/next68k/conf/GENERIC
1823 src/sys/arch/ofppc/conf/GENERIC
1824 src/sys/arch/pc532/conf/GENERIC
1825 src/sys/arch/pmax/conf/GENERIC
1826 src/sys/arch/prep/conf/GENERIC
1827 src/sys/arch/sandpoint/conf/GENERIC
1828 src/sys/arch/sbmips/conf/GENERIC
1829 src/sys/arch/sgimips/conf/GENERIC32_IP3x
1830 src/sys/arch/shark/conf/GENERIC
1831 src/sys/arch/sparc/conf/GENERIC
1832 src/sys/arch/sparc/conf/GENERIC.MP
1833 src/sys/arch/sparc64/conf/GENERIC
1834 src/sys/arch/sparc64/conf/GENERIC.MP
1835 src/sys/arch/sun2/conf/GENERIC
1836 src/sys/arch/sun3/conf/GENERIC
1837 src/sys/arch/vax/conf/GENERIC
1838 src/sys/arch/vax/conf/GENERIC.MP
1839 src/sys/arch/x68k/conf/GENERIC
1840
1841 src/sys/arch/playstation2/conf/GENERIC
1842
1843 Branch: yamt-pdpolicy
1844 Description: play with page replacement policy
1845 - separate page replacement policy from the rest of kernel
1846 - implement alternative replacement policy
1847 - related read-ahead adjustment?
1848 Status: Terminated; merged to -current
1849 Start Date: Sun Mar 5 2006
1850 End Date: Sat Sep 16 2006
1851 Base Tag: yamt-pdpolicy-base9
1852 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1853 Scope: src/sys (src/common is tagged but not branched)
1854 Notes:
1855
1856 Branch: yamt-pf42
1857 Description: import newer pf from OpenBSD 4.2
1858 Status: Terminated; merged to -current
1859 Start Date: Sat Apr 19 2008
1860 End Date: Wed Jun 18 2008
1861 Base Tag: yamt-pf42-base4
1862 Maintainer: Peter Postma <peter (a] NetBSD.org>,
1863 YAMAMOTO Takashi <yamt (a] NetBSD.org>
1864 Scope: src
1865 Notes: see sys/dist/pf/net/TODO
1866
1867 Branch: yamt-readahead
1868 Description: play with file readahead
1869 Status: Terminated; merged to -current
1870 Start Date: Mon Nov 14 2005
1871 End Date: Wed Nov 30 2005
1872 Base Tag: yamt-readahead-base3
1873 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1874 Scope: src/sys
1875 Notes:
1876
1877 Branch: yamt-uio_vmspace
1878 Description: uio_lwp/uio_segflg -> uio_vmspace
1879 Status: Terminated; merged to -current
1880 Start Date: Mon Dec 31 2005
1881 End Date: Wed Mar 1 2006
1882 Base Tag: yamt-uio_vmspace-base5
1883 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1884 Scope: src/sys
1885 Notes:
1886
1887 Branch: yamt-splraiseipl
1888 Description: finish implementing splraiseipl (and makeiplcookie).
1889 http://mail-index.NetBSD.org/tech-kern/2006/07/01/0000.html
1890
1891 - completes workqueue(9) and netbt.
1892 - fix PR/33218.
1893
1894 Status: Terminated; merged to -current
1895 Start Date: Mon Sep 18 2006
1896 End Date: Fri Dec 22 2006
1897 Base Tag: yamt-splraiseipl-base5
1898 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1899 Scope: src/sys (src/common is tagged but not branched)
1900 Notes:
1901 tested (by who):
1902 alpha (yamt)
1903 alpha (pavel)
1904 amd64 (reported privately)
1905 cobalt (tsutsui)
1906 ews4800mips (tsutsui)
1907 hp300 (tsutsui)
1908 hpcarm (reported privately)
1909 i386 (yamt)
1910 macppc (tsutsui)
1911 news68k (tsutsui)
1912 sgimips(IP32) (tsutsui)
1913 sparc(sun4c) (tsutsui)
1914 sun2 (tsutsui)
1915 sun3 (tsutsui)
1916 sun3x (tsutsui)
1917 xen (yamt)
1918
1919 compile-tested:
1920 acorn26
1921 acorn32
1922 algor
1923 amiga
1924 arc
1925 atari
1926 bebox
1927 cats
1928 cesfic
1929 dreamcast
1930 evbarm
1931 evbmips
1932 evbppc(marvell)
1933 evbppc(ibm4xx)
1934 evbsh3
1935 hp700
1936 hpcmips
1937 hpcsh
1938 ia64
1939 ibmnws
1940 iyonix
1941 landisk
1942 luna68k
1943 mac68k
1944 mmeye
1945 mvme68k
1946 mvmeppc
1947 mipsco
1948 netwinder
1949 newsmips
1950 next68k
1951 ofppc
1952 pc532
1953 pmax
1954 pmppc
1955 prep
1956 sandpoint
1957 sbmips
1958 shark
1959 sparc
1960 sparc64
1961 vax
1962 x68k
1963 zaurus
1964
1965 not tested:
1966 pdp10 (i don't know how to build)
1967 sh5 (not buildable with an unrelated problem.)
1968
1969 compile CAYMAN64/netbsd32_sa.o
1970 cc1: warnings being treated as errors
1971 /exports/nbsd/src/sys/compat/netbsd32/netbsd32_sa.c: In function 'netbsd32_sa_ucsp':
1972 /exports/nbsd/src/sys/compat/netbsd32/netbsd32_sa.c:126: warning: implicit declaration of function '_UC_MACHINE32_SP'
1973 --- netbsd32_sa.o ---
1974 *** [netbsd32_sa.o] Error code 1
1975 1 error
1976
1977 notyet:
1978 amigappc
1979 playstation2
1980
1981 Branch: yamt-vop
1982 Description: remove several VOPs
1983 Status: Terminated; merged to -current
1984 Start Date: Wed Oct 19 2005
1985 End Date: Wed Nov 2 2005
1986 Base Tag: yamt-vop-base3
1987 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1988 Scope: src/sys
1989 Notes: http://mail-index.NetBSD.org/tech-kern/2005/09/27/0000.html
1990
1991 Branch: yamt-x86pmap
1992 Description: merge i386 and amd64 pmap
1993 Status: Terminated; merged to -current
1994 Start Date: Mon Sep 24 2007
1995 End Date: Fri Oct 19 2007
1996 Base Tag: yamt-x86pmap-base4
1997 Maintainer: YAMAMOTO Takashi <yamt (a] NetBSD.org>
1998 Scope: src/sys (src/common is tagged but not branched)
1999 Notes:
2000
2001 Branch: gdamore-uart
2002 Description: Add register table support to com driver.
2003 Status: Active
2004 Start Date: 14 June 2006
2005 End Date: 13 July 2006
2006 Base Tag: gdamore-uart-base
2007 Maintainer: Garrett D'Amore <gdamore (a] NetBSD.org>
2008 Scope: kernel
2009 Notes: Results in consolidation of Alchemy (mips/dev/alchemy/aucom.c)
2010 com support, and also removes a nasty hack from Atheros com.
2011
2012 Branch: christos-time_t
2013 Description: Change time_t and dev_t to 64 bit quantities; fix timeval
2014 and timespec.
2015 Status: merged
2016 Start Date: 29 March 2008
2017 End Date: 10 January 2009
2018 Base Tag: christos-time_t-base
2019 Maintainer: Christos Zoulas <christos (a] NetBSD.org>
2020 Scope: kernel, libc, libutil, userland
2021 Notes: Requires a major bump of all libraries except libc, libutil.
2022
2023 Branch: rtr-xorg-branch
2024 Description: xorg & static build alterations to src/x11
2025 Status: Dead; replaced by src/external/mit/xorg
2026 Start Date: Nov 15 2004
2027 End Date: ?
2028 Base tag: rtr-xorg-branch-base
2029 Maintainer: Tyler R. Retzlaff <rtr (a] NetBSD.org>
2030 Scope: x11
2031 distrib/sets/lists
2032 share/mk/bsd.x11.mk
2033 share/mk/bsd.own.mk
2034 etc/mtree/NetBSD.dist
2035 Notes: Requires parts of xsrc/xfree (HEAD)
2036 xsrc/local, xsrc/xfree/xc/programs/Xserver/hw/netbsd
2037 Requires xorg (XORG-6_8_1)
2038
2039 Branch: gmcgarry_ctxsw
2040 Description: Separate scheduler from context-switch code
2041 Status: Dead; replaced by cpu_switchto / yamt-idlelwp branch
2042 Start Date: 18 December 2002
2043 End Date:
2044 Base Tag: gmcgarry_ctxsw_base
2045 Maintainer: Gregory McGarry <gmcgarry (a] NetBSD.org>
2046 Scope: kernel
2047 Notes: Removing knowledge of the scheduler and its run queues
2048 from the machine-dependent context switch code is the
2049 first step in cleaning up the scheduler. It is necessary
2050 for the newlock branch, making the scheduler SMP friendly,
2051 adding real-time scheduler extensions, and reducing the
2052 number of code paths for LWP and proc switching.
2053
2054 Branch: nick-hppapmap
2055 Description: Update of hppa pmap with OpenBSD code.
2056 Status: Terminated; merged to -current
2057 Start Date: 27 October 2008
2058 End Date: 30 April 2009
2059 Base Tag: nick-hppapmap-base3
2060 Maintainer: Nick Hudson <skrll (a] NetBSD.org>
2061 Scope: sys/
2062 Notes: Port of the OpenBSD pmap including support for PA2.0 CPUs in
2063 32-bit mode.
2064
2065 Branch: thorpej-atomic
2066 Description: Implementation of an atomic memory operations API modeled
2067 after the one in Solaris 10.
2068 Status: Terminated; merged to -current
2069 Start Date: Apr 11 2007
2070 End Date: Nov 18 2007
2071 Base tag: thorpej-atomic-base
2072 Maintainer: Jason Thorpe <thorpej (a] netbsd.org>
2073 Scope: src/common
2074 src/sys
2075 Notes: Base atomic primitives need to be implemented for
2076 all of the supported architectures:
2077
2078 alpha DONE
2079 arm DONE
2080 hppa
2081 i386 DONE
2082 ia64
2083 m68k DONE (except for 68010)
2084 mips
2085 ns32k
2086 powerpc DONE except for membar_*()
2087 powerpc64 DONE except for membar_*()
2088 sh3
2089 sparc DONE except for membar_*()
2090 sparc64 DONE except for membar_*()
2091 vax
2092 x86_64 DONE
2093
2094 Tested:
2095
2096 alpha NO
2097 arm NO
2098 hppa NO
2099 i386 NO
2100 ia64 NO
2101 m68k NO
2102 mips NO
2103 ns32k NO
2104 powerpc NO
2105 powerpc64 NO
2106 sh3 NO
2107 sparc NO
2108 sparc64 NO
2109 vax NO
2110 x86_64 NO
2111
2112 TODO:
2113
2114 all - Need to replace mb_*() with membar_*().
2115
2116 - Audit MUTEX_CAS() and RWLOCK_CAS() uses
2117 to see of membar_enter() is required here.
2118
2119 - Talk to ad@ -- figure out of non-atomic
2120 mutex / rwlock release is actually safe.
2121
2122 arm - Consider using a RAS technique like
2123 MIPS uses for _lock_cas() and the mutex
2124 stubs. Possibly do more than one atomic
2125 op as a RAS. Possibly implement mutex
2126 stubs using the technique.
2127
2128 m68k - Need to do 68010 support.
2129
2130 i386 - Need to change when x86_patch() is called
2131 so we can test ncpus.
2132
2133 powerpc - Figure out if we need barriers in the
2134 atomic ops themselves (hopefully not!)
2135
2136 x86_64 - Need to change when x86_patch() is called
2137 so we can test ncpus.
2138
2139 ########################################################################
2140 # Other:
2141 ########################################################################
2142
2143 Branch: magnum
2144 Description: ?
2145 Status: ?
2146 Start Date:
2147 End Date:
2148 Base Tag: magnum-base
2149 Maintainer: ?
2150 Scope: kernel
2151 Notes:
2152
2153