1 Updating Information for FreeBSD current users
3 This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>.
4 See end of file for further details. For commonly done items, please see the
5 COMMON ITEMS: section later in the file. These instructions assume that you
6 basically know what you are doing. If not, then please consult the FreeBSD
9 http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html
11 Items affecting the ports and packages system can be found in
12 /usr/ports/UPDATING. Please read that file before running portupgrade.
14 NOTE: FreeBSD has switched from gcc to clang. If you have trouble bootstrapping
15 from older versions of FreeBSD, try WITHOUT_CLANG to bootstrap to the tip of
16 stable/10, and then rebuild without this option. The bootstrap process from
17 older version of current is a bit fragile.
19 20161222 p45 FreeBSD-SA-16:39.ntp
21 Fix multiple vulnerabilities of ntp.
23 20161208 p44 FreeBSD-SA-16:37.libc [revised]
25 Fix regressions introduced by SA-16:37.libc.
27 20161206 p43 FreeBSD-SA-16:36.telnetd
29 FreeBSD-SA-16:38.bhyve
30 FreeBSD-EN-16:19.tzcode
31 FreeBSD-EN-16:20.tzdata
33 Fix possible login(1) argument injection in telnetd(8). [SA-16:36]
34 Fix link_ntoa(3) buffer overflow in libc. [SA-16:37]
35 Fix possible escape from bhyve(8) virtual machine. [SA-16:38]
36 Fix warnings about valid time zone abbreviations. [EN-16:19]
37 Update timezone database information. [EN-16:20]
39 20161102 p42 FreeBSD-SA-16:35.openssl
41 Fix OpenSSL remote DoS vulnerability. [SA-16:35]
43 20161025 p41 FreeBSD-SA-16:15.sysarch [revised]
45 Fix incorrect argument validation in sysarch(2). [SA-16:15]
47 20161010 p40 FreeBSD-SA-16:29.bspatch
48 FreeBSD-SA-16:30.portsnap
49 FreeBSD-SA-16:31.libarchive
51 Fix bspatch heap overflow vulnerability. [SA-16:29]
53 Fix multiple portsnap vulnerabilities. [SA-16:30]
55 Fix multiple libarchive vulnerabilities. [SA-16:31]
57 20160926 p39 FreeBSD-SA-16:26.openssl [revised]
59 Fix OpenSSL regression introduced in SA-16:26.
61 20160923 p38 FreeBSD-SA-16:26.openssl
63 Fix multiple OpenSSL vulnerabilitites.
65 20160725 p37 FreeBSD-SA-16:25.bspatch
66 FreeBSD-EN-16:09.freebsd-update
68 Fix bspatch heap overflow vulnerability. [SA-16:25]
70 Fix freebsd-update(8) support of FreeBSD 11.0 release
71 distribution. [EN-16:09]
73 20160604 p36 FreeBSD-SA-16:24.ntp
75 Fix multiple vulnerabilities of ntp.
77 20160531 p35 FreeBSD-SA-16:20.linux
78 FreeBSD-SA-16:21.43bsd
79 FreeBSD-SA-16:22.libarchive
81 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20]
82 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21]
83 Fix directory traversal in cpio(1). [SA-16:22]
85 20160517 p34 FreeBSD-SA-16:18.atkbd
86 FreeBSD-SA-16:19.sendmsg
88 Fix buffer overflow in keyboard driver. [SA-16:18]
90 Fix incorrect argument handling in sendmsg(2). [SA-16:19]
92 20160504 p33 FreeBSD-SA-16:17.openssl
95 Fix multiple OpenSSL vulnerabilitites. [SA-16:17]
97 Fix memory leak in ZFS. [EN-16:08]
99 20160429 p32 FreeBSD-SA-16:16.ntp
101 Fix multiple vulnerabilities of ntp.
103 20160316 p31 FreeBSD-SA-16:14.openssh-xauth
104 FreeBSD-SA-16:15.sysarch
105 FreeBSD-EN-16:04.hyperv
107 Fix OpenSSH xauth(1) command injection. [SA-16:14]
108 Fix incorrect argument validation in sysarch(2). [SA-16:15]
109 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04]
111 20160303 p30 FreeBSD-SA-16:12.openssl
113 Fix multiple vulnerabilities of OpenSSL.
115 20160130 p29 FreeBSD-SA-16:11.openssl
117 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11]
119 20160127 p28 FreeBSD-SA-16:09.ntp
120 FreeBSD-SA-16:10.linux
122 Fix multiple vulnerabilities of ntp. [SA-16:09]
124 Fix Linux compatibility layer issetugid(2) system call
125 vulnerability. [SA-16:10]
127 20160114 p27 FreeBSD-SA-16:07.openssh
129 Fix OpenSSH client information leak. [SA-16:07]
131 20160114 p26 FreeBSD-EN-16:02.pf
132 FreeBSD-EN-16:03.yplib
133 FreeBSD-SA-16:01.sctp
135 FreeBSD-SA-16:03.linux
136 FreeBSD-SA-16:04.linux
138 FreeBSD-SA-16:06.bsnmpd
140 Fix pf(4) generating bad TCP checksums. [EN-16:02]
141 Fix infinite loop in YP/NIS client library. [EN-16:03]
142 Fix remote denial of service in SCTP. [SA-16:01]
143 Update NTP to 4.2.8p5. [SA-16:02]
144 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03]
145 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04]
146 Fix crash in TCP MD5 signatures. [SA-16:05]
147 Fix insecure default permissions for snmpd.config. [SA-16:06]
149 20151205 p25 FreeBSD-SA-15:26.openssl
151 Fix multiple OpenSSL vulnerabilities. [SA-15:26]
153 20151104 p24 FreeBSD-SA-15:25.ntp [revised]
154 FreeBSD-EN-15:19.kqueue
157 Fix regression in ntpd(8) lacking support for RAWDCF reference
158 clock in 10.1-RELEASE-p23. [SA-15:25.ntp]
160 Fix kqueue write events never fired for files greater 2GB. [EN-15:19]
162 Fix applications exiting due to segmentation violation on a correct
163 memory address. [EN-15:20]
165 20151026: p23 FreeBSD-SA-15:25.ntp
167 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4.
169 The configuration file syntax has been changed, thus mergemaster
170 run is recommended. Now the "kod" parameter requires "limited"
171 parameter. If the ntp.conf is not updated, the ntpd will run
172 successfully, but with KoD disabled.
174 20151002: p22 FreeBSD-SA-15:24.rpcbind [revised]
175 Revised patch to address a regression that prevents NIS from working.
177 20150929: p21 FreeBSD-SA-15:24.rpcbind
179 Fix rpcbind(8) remote denial of service. [SA-15:24]
181 20150916: p20 FreeBSD-EN-15:18.pkg
183 Implement pubkey support for pkg(7) bootstrap. [EN-15:18]
185 20150825: p19 FreeBSD-SA-15:21.amd64
186 FreeBSD-SA-15:22.openssh
187 FreeBSD-EN-15:14.ixgbe
190 Fix local privilege escalation in IRET handler. [SA-15:21]
192 Fix OpenSSH multiple vulnerabilities. [SA-15:22]
194 Disabled ixgbe(4) flow-director support. [EN-15:14]
196 Fix insufficient check of unsupported pkg(7) signature methods.
199 20150818: p18 FreeBSD-SA-15:20.expat
201 Fix multiple integer overflows in expat (libbsdxml) XML parser.
204 20150805: p17 FreeBSD-SA-15:18.bsdpatch
205 FreeBSD-SA-15:19.routed
207 Fix patch(1) shell injection vulnerability via ed(1).
210 Fix routed remote denial of service vulnerability. [SA-15:19]
212 20150728: p16 FreeBSD-SA-15:14.bsdpatch
214 FreeBSD-SA-15:16.openssh
216 Fix patch(1) shell injection vulnerability. [SA-15:14]
218 Fix resource exhaustion in TCP reassembly. [SA-15:15]
220 Fix OpenSSH multiple vulnerabilities. [SA-15:16]
222 20150721: p15 FreeBSD-SA-15:13.tcp
224 Fix resource exhaustion due to sessions stuck in LAST_ACK state.
227 20150630: p14 FreeBSD-EN-15:08.sendmail [revised]
228 FreeBSD-EN-15:09.xlocale
229 FreeBSD-EN-15:10.iconv
231 Improvements to sendmail TLS/DH interoperability. [EN-15:08]
233 Fix inconsistency between locale and rune locale states.
236 Improved iconv(3) UTF-7 support. [EN-15:10]
238 20150618: p13 FreeBSD-EN-15:08.sendmail
239 Improvements to sendmail TLS/DH interoperability. [EN-15:08]
241 20150612: p12 FreeBSD-SA-15:10.openssl
242 Fix multiple vulnerabilities in OpenSSL. [SA-15:10]
244 20150609: p11 FreeBSD-EN-15:06.file
247 Updated base system file(1) to 5.22 to address multiple denial
248 of service issues. [EN-15:06]
250 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used.
253 20150513: p10 FreeBSD-EN-15:04.freebsd-update
256 Fix bug with freebsd-update(8) that does not ensure the previous
257 upgrade was completed. [EN-15:04]
259 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05]
261 20150407: p9 FreeBSD-SA-15:04.igmp [revised]
263 FreeBSD-SA-15:08.bsdinstall
264 FreeBSD-SA-15:09.ipv6
266 Improved patch for SA-15:04.igmp.
268 Fix multiple vulnerabilities of ntp. [SA-15:07]
270 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08]
272 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09]
275 Fix patch for SA-15:06.openssl.
277 20150319: p7 FreeBSD-SA-15:06.openssl
278 Fix multiple vulnerabilities in OpenSSL. [SA-15:06]
280 20150225: p6 FreeBSD-SA-15:04.igmp
282 FreeBSD-EN-15:02.openssl
283 FreeBSD-EN-15:03.freebsd-update
285 Fix integer overflow in IGMP protocol. [SA-15:04]
287 Fix vt(4) crash with improper ioctl parameters. [EN-15:01]
289 Updated base system OpenSSL to 1.0.1l. [EN-15:02]
291 Fix freebsd-update libraries update ordering issue. [EN-15:03]
293 20150127: p5 FreeBSD-SA-15:02.kmem
294 FreeBSD-SA-15:03.sctp
296 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure
297 vulnerability. [SA-15:02]
299 Fix SCTP stream reset vulnerability. [SA-15:03]
301 20150114: p4 FreeBSD-SA-15:01.openssl
302 Fix multiple vulnerabilities in OpenSSL. [SA-15:01]
304 20141223: p3 FreeBSD-SA-14:31.ntp
305 FreeBSD-EN-14:13.freebsd-update
307 Fix multiple vulnerabilities in NTP suite. [SA-14:31]
308 Fix directory deletion issue in freebsd-update. [EN-14:13]
310 20141217: p2 FreeBSD-SA-14:30.unbound
311 Fix unbound remote denial of service vulnerability.
313 20141210: p1 FreeBSD-SA-14:27.stdio
314 FreeBSD-SA-14:28.file
316 Fix buffer overflow in stdio. [SA-14:27]
318 Fix multiple vulnerabilities in file(1) and libmagic(3).
322 The ofwfb driver, used to provide a graphics console on PowerPC when
323 using vt(4), no longer allows mmap() of all of physical memory. This
324 will prevent Xorg on PowerPC with some ATI graphics cards from
325 initializing properly unless x11-servers/xorg-server is updated to
329 The libatf-c and libatf-c++ major versions were downgraded to 0 and
330 1 respectively to match the upstream numbers. They were out of
331 sync because, when they were originally added to FreeBSD, the
332 upstream versions were not respected. These libraries are private
333 and not yet built by default, so renumbering them should be a
334 non-issue. However, unclean source trees will yield broken test
335 programs once the operator executes "make delete-old-libs" after a
338 Additionally, the atf-sh binary was made private by moving it into
339 /usr/libexec/. Already-built shell test programs will keep the
340 path to the old binary so they will break after "make delete-old"
343 If you are using WITH_TESTS=yes (not the default), wipe the object
344 tree and rebuild from scratch to prevent spurious test failures.
345 This is only needed once: the misnumbered libraries and misplaced
346 binaries have been added to OptionalObsoleteFiles.inc so they will
347 be removed during a clean upgrade.
350 The ixgbe tunables now match their sysctl counterparts, for example:
351 hw.ixgbe.enable_aim => hw.ix.enable_aim
352 Anyone using ixgbe tunables should ensure they update /boot/loader.conf.
355 The NFSv4.1 server committed by r269398 changes the internal
356 function call interfaces used between the NFS and krpc modules.
357 As such, __FreeBSD_version was bumped.
360 The default unbound configuration has been modified to address
361 issues with reverse lookups on networks that use private
362 address ranges. If you use the local_unbound service, run
363 "service local_unbound setup" as root to regenerate your
364 configuration, then "service local_unbound reload" to load the
368 It is no longer necessary to include the dwarf version in your DEBUG
369 options in your kernel config file. The bug that required it to be
370 placed in the config file has bene fixed. DEBUG should now just
371 contain -g. The build system will automatically update things
372 to do the right thing.
375 Several ABI breaking changes were merged to CTL and new iSCSI code.
376 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and
377 iscsictl need to be rebuilt to work with a new kernel.
380 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
381 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
382 which differs from the behaviour controlled by this knob.)
385 On i386 and amd64 systems, the onifconsole flag is now set by default
386 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled
387 as a login TTY if it is set in the bootloader as an active kernel
388 console. No changes in behavior should result otherwise. To revert to
389 the previous behavior, set ttyu0 to "off" in /etc/ttys.
392 Clang and llvm have been upgraded to 3.4.1 release.
395 Clang and llvm have been upgraded to 3.4 release.
398 If a Makefile in a tests/ directory was auto-generating a Kyuafile
399 instead of providing an explicit one, this would prevent such
400 Makefile from providing its own Kyuafile in the future during
401 NO_CLEAN builds. This has been fixed in the Makefiles but manual
402 intervention is needed to clean an objdir if you use NO_CLEAN:
403 # find /usr/obj -name Kyuafile | xargs rm -f
406 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
407 capability mode support. Please note that enabling the feature in
408 kernel is still highly recommended.
411 OpenSSH is now built with sandbox support, and will use sandbox as
412 the default privilege separation method. This requires Capsicum
413 capability mode support in kernel.
416 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has
417 been deprecated and will not be part of FreeBSD 11.0 and later
418 releases. If you use this driver, please consider switching to
419 the nfe(4) driver instead.
425 The behavior of gss_pseudo_random() for the krb5 mechanism
426 has changed, for applications requesting a longer random string
427 than produced by the underlying enctype's pseudo-random() function.
428 In particular, the random string produced from a session key of
429 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
430 be different at the 17th octet and later, after this change.
431 The counter used in the PRF+ construction is now encoded as a
432 big-endian integer in accordance with RFC 4402.
433 __FreeBSD_version is bumped to 1000701.
436 The WITHOUT_ATF build knob has been removed and its functionality
437 has been subsumed into the more generic WITHOUT_TESTS. If you were
438 using the former to disable the build of the ATF libraries, you
439 should change your settings to use the latter.
442 The default version of mtree is nmtree which is obtained from
443 NetBSD. The output is generally the same, but may vary
444 slightly. If you found you need identical output adding
445 "-F freebsd9" to the command line should do the trick. For the
446 time being, the old mtree is available as fmtree.
449 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
450 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
451 1.1.4_8 and verify bsdyml not linked in, before running "make
453 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
455 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
458 The rc.d/jail script has been updated to support jail(8)
459 configuration file. The "jail_<jname>_*" rc.conf(5) variables
460 for per-jail configuration are automatically converted to
461 /var/run/jail.<jname>.conf before the jail(8) utility is invoked.
462 This is transparently backward compatible. See below about some
463 incompatibilities and rc.conf(5) manual page for more details.
465 These variables are now deprecated in favor of jail(8) configuration
466 file. One can use "rc.d/jail config <jname>" command to generate
467 a jail(8) configuration file in /var/run/jail.<jname>.conf without
468 running the jail(8) utility. The default pathname of the
469 configuration file is /etc/jail.conf and can be specified by
470 using $jail_conf or $jail_<jname>_conf variables.
472 Please note that jail_devfs_ruleset accepts an integer at
473 this moment. Please consider to rewrite the ruleset name
477 BIND has been removed from the base system. If all you need
478 is a local resolver, simply enable and start the local_unbound
479 service instead. Otherwise, several versions of BIND are
480 available in the ports tree. The dns/bind99 port is one example.
482 With this change, nslookup(1) and dig(1) are no longer in the base
483 system. Users should instead use host(1) and drill(1) which are
484 in the base system. Alternatively, nslookup and dig can
485 be obtained by installing the dns/bind-tools port.
488 With the addition of unbound(8), a new unbound user is now
489 required during installworld. "mergemaster -p" can be used to
490 add the user prior to installworld, as documented in the handbook.
493 OpenSSH is now built with DNSSEC support, and will by default
494 silently trust signed SSHFP records. This can be controlled with
495 the VerifyHostKeyDNS client configuration setting. DNSSEC support
496 can be disabled entirely with the WITHOUT_LDNS option in src.conf.
499 The GNU Compiler Collection and C++ standard library (libstdc++)
500 are no longer built by default on platforms where clang is the system
501 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX
505 The PROCDESC kernel option is now part of the GENERIC kernel
506 configuration and is required for the rwhod(8) to work.
507 If you are using custom kernel configuration, you should include
511 The API and ABI related to the Capsicum framework was modified
512 in backward incompatible way. The userland libraries and programs
513 have to be recompiled to work with the new kernel. This includes the
514 following libraries and programs, but the whole buildworld is
515 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl,
516 kdump, procstat, rwho, rwhod, uniq.
519 AES-NI intrinsic support has been added to gcc. The AES-NI module
520 has been updated to use this support. A new gcc is required to build
521 the aesni module on both i386 and amd64.
524 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices.
525 Thus "device padlock_rng" and "device rdrand_rng" should be
526 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG".
529 WITH_ICONV has been split into two feature sets. WITH_ICONV now
530 enables just the iconv* functionality and is now on by default.
531 WITH_LIBICONV_COMPAT enables the libiconv api and link time
532 compatability. Set WITHOUT_ICONV to build the old way.
533 If you have been using WITH_ICONV before, you will very likely
534 need to turn on WITH_LIBICONV_COMPAT.
537 INVARIANTS option now enables DEBUG for code with OpenSolaris and
538 Illumos origin, including ZFS. If you have INVARIANTS in your
539 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG
541 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS)
542 locks if WITNESS option was set. Because that generated a lot of
543 witness(9) reports and all of them were believed to be false
544 positives, this is no longer done. New option OPENSOLARIS_WITNESS
545 can be used to achieve the previous behavior.
548 Timer values in IPv6 data structures now use time_uptime instead
549 of time_second. Although this is not a user-visible functional
550 change, userland utilities which directly use them---ndp(8),
551 rtadvd(8), and rtsold(8) in the base system---need to be updated
555 find -delete can now delete the pathnames given as arguments,
556 instead of only files found below them or if the pathname did
557 not contain any slashes. Formerly, the following error message
560 find: -delete: <path>: relative path potentially not safe
562 Deleting the pathnames given as arguments can be prevented
563 without error messages using -mindepth 1 or by changing
564 directory and passing "." as argument to find. This works in the
565 old as well as the new version of find.
568 Behavior of devfs rules path matching has been changed.
569 Pattern is now always matched against fully qualified devfs
570 path and slash characters must be explicitly matched by
571 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs
572 subdirectories must be reviewed.
575 The default ARM ABI has changed to the ARM EABI. The old ABI is
576 incompatible with the ARM EABI and all programs and modules will
577 need to be rebuilt to work with a new kernel.
579 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set.
581 NOTE: Support for the old ABI will be removed in the future and
582 users are advised to upgrade.
585 pkg_install has been disconnected from the build if you really need it
586 you should add WITH_PKGTOOLS in your src.conf(5).
589 Most of network statistics structures were changed to be able
590 keep 64-bits counters. Thus all tools, that work with networking
591 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.)
594 Fix targets that run multiple make's to use && rather than ;
595 so that subsequent steps depend on success of previous.
597 NOTE: if building 'universe' with -j* on stable/8 or stable/9
598 it would be better to start the build using bmake, to avoid
599 overloading the machine.
602 Fix a bug that allowed a tracing process (e.g. gdb) to write
603 to a memory-mapped file in the traced process's address space
604 even if neither the traced process nor the tracing process had
605 write access to that file.
608 CVS has been removed from the base system. An exact copy
609 of the code is available from the devel/cvs port.
612 Some people report the following error after the switch to bmake:
614 make: illegal option -- J
615 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable]
617 *** [buildworld] Error code 2
619 this likely due to an old instance of make in
620 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE})
621 which src/Makefile will use that blindly, if it exists, so if
622 you see the above error:
624 rm -rf `make -V MAKEPATH`
629 Use bmake by default.
630 Whereas before one could choose to build with bmake via
631 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old
632 make. The goal is to remove these knobs for 10-RELEASE.
634 It is worth noting that bmake (like gmake) treats the command
635 line as the unit of failure, rather than statements within the
636 command line. Thus '(cd some/where && dosomething)' is safer
637 than 'cd some/where; dosomething'. The '()' allows consistent
638 behavior in parallel build.
641 Fix a bug that allows NFS clients to issue READDIR on files.
644 The WITHOUT_IDEA option has been removed because
645 the IDEA patent expired.
648 The sysctl which controls TRIM support under ZFS has been renamed
649 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been
653 The mergemaster command now uses the default MAKEOBJDIRPREFIX
654 rather than creating it's own in the temporary directory in
655 order allow access to bootstrapped versions of tools such as
656 install and mtree. When upgrading from version of FreeBSD where
657 the install command does not support -l, you will need to
658 install a new mergemaster command if mergemaster -p is required.
659 This can be accomplished with the command (cd src/usr.sbin/mergemaster
663 Legacy ATA stack, disabled and replaced by new CAM-based one since
664 FreeBSD 9.0, completely removed from the sources. Kernel modules
665 atadisk and atapi*, user-level tools atacontrol and burncd are
666 removed. Kernel option `options ATA_CAM` is now permanently enabled
670 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2)
671 and socketpair(2). Software, in particular Kerberos, may
672 automatically detect and use these during building. The resulting
673 binaries will not work on older kernels.
676 CTL_DISABLE has also been added to the sparc64 GENERIC (for further
677 information, see the respective 20130304 entry).
680 Recent commits to callout(9) changed the size of struct callout,
681 so the KBI is probably heavily disturbed. Also, some functions
682 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced
683 by macros. Every kernel module using it won't load, so rebuild
686 The ctl device has been re-enabled in GENERIC for i386 and amd64,
687 but does not initialize by default (because of the new CTL_DISABLE
688 option) to save memory. To re-enable it, remove the CTL_DISABLE
689 option from the kernel config file or set kern.cam.ctl.disable=0
690 in /boot/loader.conf.
693 The ctl device has been disabled in GENERIC for i386 and amd64.
694 This was done due to the extra memory being allocated at system
695 initialisation time by the ctl driver which was only used if
696 a CAM target device was created. This makes a FreeBSD system
697 unusable on 128MB or less of RAM.
700 A new compression method (lz4) has been merged to -HEAD. Please
701 refer to zpool-features(7) for more information.
703 Please refer to the "ZFS notes" section of this file for information
704 on upgrading boot ZFS pools.
707 A BSD-licensed patch(1) variant has been added and is installed
708 as bsdpatch, being the GNU version the default patch.
709 To inverse the logic and use the BSD-licensed one as default,
710 while having the GNU version installed as gnupatch, rebuild
711 and install world with the WITH_BSD_PATCH knob set.
714 Due to the use of the new -l option to install(1) during build
715 and install, you must take care not to directly set the INSTALL
716 make variable in your /etc/make.conf, /etc/src.conf, or on the
717 command line. If you wish to use the -C flag for all installs
718 you may be able to add INSTALL+=-C to /etc/make.conf or
722 The install(1) option -M has changed meaning and now takes an
723 argument that is a file or path to append logs to. In the
724 unlikely event that -M was the last option on the command line
725 and the command line contained at least two files and a target
726 directory the first file will have logs appended to it. The -M
727 option served little practical purpose in the last decade so its
728 use is expected to be extremely rare.
731 After switching to Clang as the default compiler some users of ZFS
732 on i386 systems started to experience stack overflow kernel panics.
733 Please consider using 'options KSTACK_PAGES=4' in such configurations.
736 GEOM_LABEL now mangles label names read from file system metadata.
737 Mangling affect labels containing spaces, non-printable characters,
738 '%' or '"'. Device names in /etc/fstab and other places may need to
742 By default, only the 10 most recent kernel dumps will be saved. To
743 restore the previous behaviour (no limit on the number of kernel dumps
744 stored in the dump directory) add the following line to /etc/rc.conf:
749 With the addition of auditdistd(8), a new auditdistd user is now
750 required during installworld. "mergemaster -p" can be used to
751 add the user prior to installworld, as documented in the handbook.
754 The sin6_scope_id member variable in struct sockaddr_in6 is now
755 filled by the kernel before passing the structure to the userland via
756 sysctl or routing socket. This means the KAME-specific embedded scope
757 id in sin6_addr.s6_addr[2] is always cleared in userland application.
758 This behavior can be controlled by net.inet6.ip6.deembed_scopeid.
759 __FreeBSD_version is bumped to 1000025.
762 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default.
763 This means that the world and kernel will be compiled with clang
764 and that clang will be installed as /usr/bin/cc, /usr/bin/c++,
765 and /usr/bin/cpp. To disable this behavior and revert to building
766 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions
767 of current may need to bootstrap WITHOUT_CLANG first if the clang
768 build fails (its compatibility window doesn't extend to the 9 stable
772 The IPFIREWALL_FORWARD kernel option has been removed. Its
773 functionality now turned on by default.
776 The ZERO_COPY_SOCKET kernel option has been removed and
777 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP.
778 NB: SOCKET_SEND_COW uses the VM page based copy-on-write
779 mechanism which is not safe and may result in kernel crashes.
780 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current
781 driver supports disposeable external page sized mbuf storage.
782 Proper replacements for both zero-copy mechanisms are under
783 consideration and will eventually lead to complete removal
784 of the two kernel options.
787 The IPv4 network stack has been converted to network byte
788 order. The following modules need to be recompiled together
789 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4),
790 pf(4), ipfw(4), ng_ipfw(4), stf(4).
793 Support for non-MPSAFE filesystems was removed from VFS. The
794 VFS_VERSION was bumped, all filesystem modules shall be
798 All the non-MPSAFE filesystems have been disconnected from
799 the build. The full list includes: codafs, hpfs, ntfs, nwfs,
800 portalfs, smbfs, xfs.
803 The interface cloning API and ABI has changed. The following
804 modules need to be recompiled together with kernel:
805 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4),
806 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4),
807 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4).
810 The sdhci driver was split in two parts: sdhci (generic SD Host
811 Controller logic) and sdhci_pci (actual hardware driver).
812 No kernel config modifications are required, but if you
813 load sdhc as a module you must switch to sdhci_pci instead.
816 Import the FUSE kernel and userland support into base system.
819 The GNU sort(1) program has been removed since the BSD-licensed
820 sort(1) has been the default for quite some time and no serious
821 problems have been reported. The corresponding WITH_GNU_SORT
825 The pfil(9) API/ABI for AF_INET family has been changed. Packet
826 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled
830 The net80211(4) ABI has been changed to allow for improved driver
831 PS-POLL and power-save support. All wireless drivers need to be
832 recompiled to work with the new kernel.
835 The random(4) support for the VIA hardware random number
836 generator (`PADLOCK') is no longer enabled unconditionally.
837 Add the padlock_rng device in the custom kernel config if
838 needed. The GENERIC kernels on i386 and amd64 do include the
839 device, so the change only affects the custom kernel
843 The pf(4) packet filter ABI has been changed. pfctl(8) and
844 snmp_pf module need to be recompiled to work with new kernel.
847 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged
848 to -HEAD. Pools that have empty_bpobj in active state can not be
849 imported read-write with ZFS implementations that do not support
850 this feature. For more information read the zpool-features(5)
854 The sparc64 ZFS loader has been changed to no longer try to auto-
855 detect ZFS providers based on diskN aliases but now requires these
856 to be explicitly listed in the OFW boot-device environment variable.
859 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring
860 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are
861 configuration changes. Make sure to merge /etc/ssl/openssl.cnf.
864 The following sysctls and tunables have been renamed for consistency
865 with other variables:
866 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered
867 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered
870 The sort utility has been replaced with BSD sort. For now, GNU sort
871 is also available as "gnusort" or the default can be set back to
872 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be
873 installed as "bsdsort".
876 A new version of ZFS (pool version 5000) has been merged to -HEAD.
877 Starting with this version the old system of ZFS pool versioning
878 is superseded by "feature flags". This concept enables forward
879 compatibility against certain future changes in functionality of ZFS
880 pools. The first read-only compatible "feature flag" for ZFS pools
881 is named "com.delphix:async_destroy". For more information
882 read the new zpool-features(5) manual page.
883 Please refer to the "ZFS notes" section of this file for information
884 on upgrading boot ZFS pools.
887 The malloc(3) implementation embedded in libc now uses sources imported
888 as contrib/jemalloc. The most disruptive API change is to
889 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf,
890 delete it prior to installworld, and optionally re-create it using the
891 new format after rebooting. See malloc.conf(5) for details
892 (specifically the TUNING section and the "opt.*" entries in the MALLCTL
896 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb
897 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is
898 now spelled mips. This is to aid compatibility with third-party
899 software that expects this naming scheme in uname(3). Little-endian
900 settings are unchanged. If you are updating a big-endian mips64 machine
901 from before this change, you may need to set MACHINE_ARCH=mips64 in
902 your environment before the new build system will recognize your machine.
905 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported
909 Now unix domain sockets behave "as expected" on nullfs(5). Previously
910 nullfs(5) did not pass through all behaviours to the underlying layer,
911 as a result if we bound to a socket on the lower layer we could connect
912 only to the lower path; if we bound to the upper layer we could connect
913 only to the upper path. The new behavior is one can connect to both the
914 lower and the upper paths regardless what layer path one binds to.
917 The getifaddrs upgrade path broken with 20111215 has been restored.
918 If you have upgraded in between 20111215 and 20120209 you need to
919 recompile libc again with your kernel. You still need to recompile
920 world to be able to configure CARP but this restriction already
924 The set_rcvar() function has been removed from /etc/rc.subr. All
925 base and ports rc.d scripts have been updated, so if you have a
926 port installed with a script in /usr/local/etc/rc.d you can either
927 hand-edit the rcvar= line, or reinstall the port.
929 An easy way to handle the mass-update of /etc/rc.d:
930 rm /etc/rc.d/* && mergemaster -i
933 panic(9) now stops other CPUs in the SMP systems, disables interrupts
934 on the current CPU and prevents other threads from running.
935 This behavior can be reverted using the kern.stop_scheduler_on_panic
937 The new behavior can be incompatible with kern.sync_on_panic.
940 The carp(4) facility has been changed significantly. Configuration
941 of the CARP protocol via ifconfig(8) has changed, as well as format
942 of CARP events submitted to devd(8) has changed. See manual pages
943 for more information. The arpbalance feature of carp(4) is currently
944 not supported anymore.
946 Size of struct in_aliasreq, struct in6_aliasreq has changed. User
947 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8),
948 need to be recompiled.
951 The acpi_wmi(4) status device /dev/wmistat has been renamed to
955 The option VFS_ALLOW_NONMPSAFE option has been added in order to
956 explicitely support non-MPSAFE filesystems.
957 It is on by default for all supported platform at this present
961 The broken amd(4) driver has been replaced with esp(4) in the amd64,
962 i386 and pc98 GENERIC kernel configuration files.
965 sysinstall has been removed
968 The stable/9 branch created in subversion. This corresponds to the
969 RELENG_9 branch in CVS.
972 This commit modifies vfs_register() so that it uses a hash
973 calculation to set vfc_typenum, which is enabled by default.
974 The first time a system is booted after this change, the
975 vfc_typenum values will change for all file systems. The
976 main effect of this is a change to the NFS server file handles
977 for file systems that use vfc_typenum in their fsid, such as ZFS.
978 It will, however, prevent vfc_typenum from changing when file
979 systems are loaded in a different order for subsequent reboots.
980 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf
981 until you are ready to remount all NFS clients after a reboot.
984 Bump the shared library version numbers for libraries that
985 do not use symbol versioning, have changed the ABI compared
986 to stable/8 and which shared library version was not bumped.
987 Done as part of 9.0-RELEASE cycle.
990 During the merge of Capsicum features, the fget(9) KPI was modified.
991 This may require the rebuilding of out-of-tree device drivers --
992 issues have been reported specifically with the nVidia device driver.
993 __FreeBSD_version is bumped to 900041.
995 Also, there is a period between 20110811 and 20110814 where the
996 special devices /dev/{stdin,stdout,stderr} did not work correctly.
997 Building world from a kernel during that window may not work.
1000 The packet filter (pf) code has been updated to OpenBSD 4.5.
1001 You need to update userland tools to be in sync with kernel.
1002 This update breaks backward compatibility with earlier pfsync(4)
1003 versions. Care must be taken when updating redundant firewall setups.
1006 The following sysctls and tunables are retired on x86 platforms:
1008 machdep.hlt_logical_cpus
1009 The following sysctl is retired:
1010 machdep.hyperthreading_allowed
1011 The sysctls were supposed to provide a way to dynamically offline and
1012 online selected CPUs on x86 platforms, but the implementation has not
1013 been reliable especially with SCHED_ULE scheduler.
1014 machdep.hyperthreading_allowed tunable is still available to ignore
1015 hyperthreading CPUs at OS level.
1016 Individual CPUs can be disabled using hint.lapic.X.disabled tunable,
1017 where X is an APIC ID of a CPU. Be advised, though, that disabling
1018 CPUs in non-uniform fashion will result in non-uniform topology and
1019 may lead to sub-optimal system performance with SCHED_ULE, which is
1020 a default scheduler.
1023 cpumask_t type is retired and cpuset_t is used in order to describe
1027 Changes to ifconfig(8) for dynamic address family detection mandate
1028 that you are running a kernel of 20110525 or later. Make sure to
1029 follow the update procedure to boot a new kernel before installing
1033 Support for sun4v architecture is officially dropped
1036 Several KPI breaking changes have been committed to the mii(4) layer,
1037 the PHY drivers and consequently some Ethernet drivers using mii(4).
1038 This means that miibus.ko and the modules of the affected Ethernet
1039 drivers need to be recompiled.
1041 Note to kernel developers: Given that the OUI bit reversion problem
1042 was fixed as part of these changes all mii(4) commits related to OUIs,
1043 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific
1044 handling, no longer can be merged verbatim to stable/8 and previous
1048 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci'
1049 into their kernel configurations along with 'device pci'.
1052 The default NFS client is now the new NFS client, so fstype "newnfs"
1053 is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
1054 Although mounts via fstype "nfs" will usually work without userland
1055 changes, it is recommended that the mount(8) and mount_nfs(8)
1056 commands be rebuilt from sources and that a link to mount_nfs called
1057 mount_oldnfs be created. The new client is compiled into the
1058 kernel with "options NFSCL" and this is needed for diskless root
1059 file systems. The GENERIC kernel configs have been changed to use
1060 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER.
1061 To use the regular/old client, you can "mount -t oldnfs ...". For
1062 a diskless root file system, you must also include a line like:
1064 vfs.root.mountfrom="oldnfs:"
1066 in the boot/loader.conf on the root fs on the NFS server to make
1067 a diskless root fs use the old client.
1070 The GENERIC kernels for all architectures now default to the new
1071 CAM-based ATA stack. It means that all legacy ATA drivers were
1072 removed and replaced by respective CAM drivers. If you are using
1073 ATA device names in /etc/fstab or other places, make sure to update
1074 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY,
1075 where 'Y's are the sequential numbers starting from zero for each type
1076 in order of detection, unless configured otherwise with tunables,
1077 see cam(4)). There will be symbolic links created in /dev/ to map
1078 old adX devices to the respective adaY. They should provide basic
1079 compatibility for file systems mounting in most cases, but they do
1080 not support old user-level APIs and do not have respective providers
1081 in GEOM. Consider using updated management tools with new device names.
1083 It is possible to load devices ahci, ata, siis and mvs as modules,
1084 but option ATA_CAM should remain in kernel configuration to make ata
1085 module work as CAM driver supporting legacy ATA controllers. Device ata
1086 still can be used in modular fashion (atacore + ...). Modules atadisk
1087 and atapi* are not used and won't affect operation in ATA_CAM mode.
1088 Note that to use CAM-based ATA kernel should include CAM devices
1089 scbus, pass, da (or explicitly ada), cd and optionally others. All of
1090 them are parts of the cam module.
1092 ataraid(4) functionality is now supported by the RAID GEOM class.
1093 To use it you can load geom_raid kernel module and use graid(8) tool
1094 for management. Instead of /dev/arX device names, use /dev/raid/rX.
1096 No kernel config options or code have been removed, so if a problem
1097 arises, please report it and optionally revert to the old ATA stack.
1098 In order to do it you can remove from the kernel config:
1103 , and instead add back:
1104 device atadisk # ATA disk drives
1105 device ataraid # ATA RAID drives
1106 device atapicd # ATAPI CDROM drives
1107 device atapifd # ATAPI floppy drives
1108 device atapist # ATAPI tape drives
1111 The default NFS server has been changed to the new server, which
1112 was referred to as the experimental server. If you need to switch
1113 back to the old NFS server, you must now put the "-o" option on
1114 both the mountd and nfsd commands. This can be done using the
1115 mountd_flags and nfs_server_flags rc.conf variables until an
1116 update to the rc scripts is committed, which is coming soon.
1119 The GNU Objective-C runtime library (libobjc), and other Objective-C
1120 related components have been removed from the base system. If you
1121 require an Objective-C library, please use one of the available ports.
1124 ath(4) has been split into bus- and device- modules. if_ath contains
1125 the HAL, the TX rate control and the network device code. if_ath_pci
1126 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb
1127 contains the AHB glue. Users need to load both if_ath_pci and if_ath
1128 in order to use ath on everything else.
1130 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only
1131 need to load if_ath and if_ath_pci for ath(4) operation.
1134 As part of the replacement of sysinstall, the process of building
1135 release media has changed significantly. For details, please re-read
1136 release(7), which has been updated to reflect the new build process.
1139 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This
1140 is the last available version under GPLv2. It brings a number of new
1141 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE
1142 4.1 and SSE 4.2), better support for powerpc64, a number of new
1143 directives, and lots of other small improvements. See the ChangeLog
1144 file in contrib/binutils for the full details.
1147 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868
1148 compliant, and will now use half of hash for authentication.
1149 This will break interoperability with all stacks (including all
1150 actual FreeBSD versions) who implement
1151 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for
1153 The only workaround with such peers is to use another HMAC
1154 algorithm for IPsec ("phase 2") authentication.
1157 Remove the uio_yield prototype and symbol. This function has
1158 been misnamed since it was introduced and should not be
1159 globally exposed with this name. The equivalent functionality
1160 is now available using kern_yield(curthread->td_user_pri).
1161 The function remains undocumented.
1164 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers,
1165 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking
1166 for scalar sysctls is defined but disabled. Code that needs
1167 UQUAD to pass the type checking that must compile on older
1168 systems where the define is not present can check against
1169 __FreeBSD_version >= 900030.
1171 The system dialog(1) has been replaced with a new version previously
1172 in ports as devel/cdialog. dialog(1) is mostly command-line compatible
1173 with the previous version, but the libdialog associated with it has
1174 a largely incompatible API. As such, the original version of libdialog
1175 will be kept temporarily as libodialog, until its base system consumers
1176 are replaced or updated. Bump __FreeBSD_version to 900030.
1179 If you are trying to run make universe on a -stable system, and you get
1180 the following warning:
1181 "Makefile", line 356: "Target architecture for i386/conf/GENERIC
1182 unknown. config(8) likely too old."
1183 or something similar to it, then you must upgrade your -stable system
1184 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in
1185 stable/8) or build the config from the latest stable/8 branch and
1186 install it on your system.
1188 Prior to this date, building a current universe on 8-stable system from
1189 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing
1190 error in the first kernel build phase. A new config on those old
1191 systems will fix that problem for older versions of -current.
1194 The TCP stack has been modified to allow Khelp modules to interact with
1195 it via helper hook points and store per-connection data in the TCP
1196 control block. Bump __FreeBSD_version to 900029. User space tools that
1197 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to
1201 Generic IEEE 802.3 annex 31B full duplex flow control support has been
1202 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along
1203 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted
1204 to take advantage of it instead of using custom implementations. This
1205 means that these drivers now no longer unconditionally advertise
1206 support for flow control but only do so if flow control is a selected
1207 media option. This was implemented in the generic support that way in
1208 order to allow flow control to be switched on and off via ifconfig(8)
1209 with the PHY specific default to typically off in order to protect
1210 from unwanted effects. Consequently, if you used flow control with
1211 one of the above mentioned drivers you now need to explicitly enable
1212 it, for example via:
1213 ifconfig bge0 media auto mediaopt flowcontrol
1215 Along with the above mentioned changes generic support for setting
1216 1000baseT master mode also has been added and brgphy(4), ciphy(4),
1217 e1000phy(4) as well as ip1000phy(4) have been converted to take
1218 advantage of it. This means that these drivers now no longer take the
1219 link0 parameter for selecting master mode but the master media option
1220 has to be used instead, for example like in the following:
1221 ifconfig bge0 media 1000baseT mediaopt full-duplex,master
1223 Selection of master mode now is also available with all other PHY
1224 drivers supporting 1000baseT.
1227 The TCP stack has received a significant update to add support for
1228 modularised congestion control and generally improve the clarity of
1229 congestion control decisions. Bump __FreeBSD_version to 900025. User
1230 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g.
1231 sockstat) need to be recompiled.
1234 The man(1) utility has been replaced by a new version that no longer
1235 uses /etc/manpath.config. Please consult man.conf(5) for how to
1236 migrate local entries to the new format.
1239 The copyright strings printed by login(1) and sshd(8) at the time of a
1240 new connection have been removed to follow other operating systems and
1244 A workaround for a fixed ld bug has been removed in kernel code,
1245 so make sure that your system ld is built from sources after
1246 revision 210245 from 2010-07-19 (r211583 if building head kernel
1247 on stable/8, r211584 for stable/7; both from 2010-08-21).
1248 A symptom of incorrect ld version is different addresses for
1249 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules.
1252 The $ipv6_prefer variable in rc.conf(5) has been split into
1253 $ip6addrctl_policy and $ipv6_activate_all_interfaces.
1255 The $ip6addrctl_policy is a variable to choose a pre-defined
1256 address selection policy set by ip6addrctl(8). A value
1257 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The
1260 The $ipv6_activate_all_interfaces specifies whether IFDISABLED
1261 flag (see an entry of 20090926) is set on an interface with no
1262 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for
1263 security reason. If you want IPv6 link-local address on all
1264 interfaces by default, set this to "YES".
1266 The old ipv6_prefer="YES" is equivalent to
1267 ipv6_activate_all_interfaces="YES" and
1268 ip6addrctl_policy="ipv6_prefer".
1271 DTrace has grown support for userland tracing. Due to this, DTrace is
1272 now i386 and amd64 only.
1273 dtruss(1) is now installed by default on those systems and a new
1274 kernel module is needed for userland tracing: fasttrap.
1275 No changes to your kernel config file are necessary to enable
1276 userland tracing, but you might consider adding 'STRIP=' and
1277 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want
1278 to have informative userland stack traces in DTrace (ustack).
1281 The acpi_aiboost(4) driver has been removed in favor of the new
1282 aibs(4) driver. You should update your kernel configuration file.
1285 BSD grep has been imported to the base system and it is built by
1286 default. It is completely BSD licensed, highly GNU-compatible, uses
1287 less memory than its GNU counterpart and has a small codebase.
1288 However, it is slower than its GNU counterpart, which is mostly
1289 noticeable for larger searches, for smaller ones it is measurable
1290 but not significant. The reason is complex, the most important factor
1291 is that we lack a modern and efficient regex library and GNU
1292 overcomes this by optimizing the searches internally. Future work
1293 on improving the regex performance is planned, for the meantime,
1294 users that need better performance, can build GNU grep instead by
1295 setting the WITH_GNU_GREP knob.
1298 Due to the import of powerpc64 support, all existing powerpc kernel
1299 configuration files must be updated with a machine directive like this:
1300 machine powerpc powerpc
1302 In addition, an updated config(8) is required to build powerpc kernels
1306 A new version of ZFS (version 15) has been merged to -HEAD.
1307 This version uses a python library for the following subcommands:
1308 zfs allow, zfs unallow, zfs groupspace, zfs userspace.
1309 For full functionality of these commands the following port must
1310 be installed: sysutils/py-zfs
1313 'vm_page's are now hashed by physical address to an array of mutexes.
1314 Currently this is only used to serialize access to hold_count. Over
1315 time the page queue mutex will be peeled away. This changes the size
1316 of pmap on every architecture. And requires all callers of vm_page_hold
1317 and vm_page_unhold to be updated.
1320 WITH_CTF can now be specified in src.conf (not recommended, there
1321 are some problems with static executables), make.conf (would also
1322 affect ports which do not use GNU make and do not override the
1323 compile targets) or in the kernel config (via "makeoptions
1325 When WITH_CTF was specified there before this was silently ignored,
1326 so make sure that WITH_CTF is not used in places which could lead
1327 to unwanted behavior.
1330 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
1331 to allow 32-bit compatibility on non-x86 platforms. All kernel
1332 configurations on amd64 and ia64 platforms using these options must
1333 be modified accordingly.
1336 The utmp user accounting database has been replaced with utmpx,
1337 the user accounting interface standardized by POSIX.
1338 Unfortunately the semantics of utmp and utmpx don't match,
1339 making it practically impossible to support both interfaces.
1340 The user accounting database is used by tools like finger(1),
1341 last(1), talk(1), w(1) and ac(8).
1343 All applications in the base system use utmpx. This means only
1344 local binaries (e.g. from the ports tree) may still use these
1345 utmp database files. These applications must be rebuilt to make
1348 After the system has been upgraded, it is safe to remove the old
1349 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*),
1350 assuming their contents is of no importance anymore. Old wtmp
1351 databases can only be used by last(1) and ac(8) after they have
1352 been converted to the new format using wtmpcvt(1).
1355 Introduce the kernel thread "deadlock resolver" (which can be enabled
1356 via the DEADLKRES option, see NOTES for more details) and the
1357 sleepq_type() function for sleepqueues.
1360 The rc.firewall and rc.firewall6 were unified, and
1361 rc.firewall6 and rc.d/ip6fw were removed.
1362 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
1363 variables are obsoleted. Instead, the following new rc
1364 variables are added to rc.d/ipfw:
1366 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
1367 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
1368 firewall_simple_onet_ipv6, firewall_trusted_ipv6
1370 The meanings correspond to the relevant IPv4 variables.
1376 The default terminal emulation for syscons(4) has been changed
1377 from cons25 to xterm on all platforms except pc98. This means
1378 that the /etc/ttys file needs to be updated to ensure correct
1379 operation of applications on the console.
1381 The terminal emulation style can be toggled per window by using
1382 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration
1383 options can be used to change the compile-time default back to
1386 To prevent graphical artifacts, make sure the TERM environment
1387 variable is set to match the terminal emulation that is being
1388 performed by syscons(4).
1391 The layout of the structure ieee80211req_scan_result has changed.
1392 Applications that require wireless scan results (e.g. ifconfig(8))
1393 from net80211 need to be recompiled.
1395 Applications such as wpa_supplicant(8) may require a full world
1396 build without using NO_CLEAN in order to get synchronized with the
1400 The iwn(4) driver has been updated to support the 5000 and 5150 series.
1401 There's one kernel module for each firmware. Adding "device iwnfw"
1402 to the kernel configuration file means including all three firmware
1403 images inside the kernel. If you want to include just the one for
1404 your wireless card, use the devices iwn4965fw, iwn5000fw or
1408 The rc.d/network_ipv6, IPv6 configuration script has been integrated
1409 into rc.d/netif. The changes are the following:
1411 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF
1412 for IPv4. For aliases, $ifconfig_IF_aliasN should be used.
1413 Note that both variables need the "inet6" keyword at the head.
1415 Do not set $ipv6_network_interfaces manually if you do not
1416 understand what you are doing. It is not needed in most cases.
1418 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but
1421 2. $ipv6_enable is obsolete. Use $ipv6_prefer and
1422 "inet6 accept_rtadv" keyword in ifconfig(8) instead.
1424 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and
1425 all configured interfaces have "inet6 accept_rtadv" in the
1426 $ifconfig_IF_ipv6. These are for backward compatibility.
1428 3. A new variable $ipv6_prefer has been added. If NO, IPv6
1429 functionality of interfaces with no corresponding
1430 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag,
1431 and the default address selection policy of ip6addrctl(8)
1432 is the IPv4-preferred one (see rc.d/ip6addrctl for more details).
1433 Note that if you want to configure IPv6 functionality on the
1434 disabled interfaces after boot, first you need to clear the flag by
1435 using ifconfig(8) like:
1437 ifconfig em0 inet6 -ifdisabled
1439 If YES, the default address selection policy is set as
1442 The default value of $ipv6_prefer is NO.
1444 4. If your system need to receive Router Advertisement messages,
1445 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8)
1446 scripts automatically invoke rtsol(8) when the interface becomes
1447 UP. The Router Advertisement messages are used for SLAAC
1448 (State-Less Address AutoConfiguration).
1451 802.11s D3.03 support was committed. This is incompatible with the
1452 previous code, which was based on D3.0.
1455 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value
1456 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to
1457 control whether accepting Router Advertisement messages or not.
1458 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and
1459 a sysctl variable net.inet6.ip6.auto_linklocal is its default value.
1460 The ifconfig(8) utility now supports these flags.
1463 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
1464 mount(8) and -a option for df(1) to see them.
1467 The old tunable hw.bus.devctl_disable has been superseded by
1468 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be
1469 replaced by hw.bus.devctl_queue=0. The default for this new tunable
1473 Remove the option STOP_NMI. The default action is now to use NMI only
1474 for KDB via the newly introduced function stop_cpus_hard() and
1475 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64.
1478 The stable/8 branch created in subversion. This corresponds to the
1479 RELENG_8 branch in CVS.
1482 Bump the shared library version numbers for all libraries that do not
1483 use symbol versioning as part of the 8.0-RELEASE cycle. Bump
1484 __FreeBSD_version to 800105.
1487 Due to changes in the implementation of virtual network stack support,
1488 all network-related kernel modules must be recompiled. As this change
1489 breaks the ABI, bump __FreeBSD_version to 800104.
1492 The TOE interface to the TCP syncache has been modified to remove
1493 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack.
1494 The cxgb driver is the only TOE consumer affected by this change, and
1495 needs to be recompiled along with the kernel. As this change breaks
1496 the ABI, bump __FreeBSD_version to 800103.
1499 Padding has been added to struct tcpcb, sackhint and tcpstat in
1500 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
1501 maintaining the ABI. However, this change breaks the ABI, so bump
1502 __FreeBSD_version to 800102. User space tools that rely on the size of
1503 any of these structs (e.g. sockstat) need to be recompiled.
1506 The NFS_LEGACYRPC option has been removed along with the old kernel
1507 RPC implementation that this option selected. Kernel configurations
1508 may need to be adjusted.
1511 The network interface device nodes at /dev/net/<interface> have been
1512 removed. All ioctl operations can be performed the normal way using
1513 routing sockets. The kqueue functionality can generally be replaced
1514 with routing sockets.
1517 The documentation from the FreeBSD Documentation Project (Handbook,
1518 FAQ, etc.) is now installed via packages by sysinstall(8) and under
1519 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc.
1522 The ABI of various structures related to the SYSV IPC API have been
1523 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel
1524 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to
1528 Layout of struct vnet has changed as routing related variables were
1529 moved to their own Vimage module. Modules need to be recompiled. Bump
1530 __FreeBSD_version to 800099.
1533 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024
1534 respectively. As long as no more than 16 groups per process are used,
1535 no changes should be visible. When more than 16 groups are used, old
1536 binaries may fail if they call getgroups() or getgrouplist() with
1537 statically sized storage. Recompiling will work around this, but
1538 applications should be modified to use dynamically allocated storage
1539 for group arrays as POSIX.1-2008 does not cap an implementation's
1540 number of supported groups at NGROUPS_MAX+1 as previous versions did.
1542 NFS and portalfs mounts may also be affected as the list of groups is
1543 truncated to 16. Users of NFS who use more than 16 groups, should
1544 take care that negative group permissions are not used on the exported
1545 file systems as they will not be reliable unless a GSSAPI based
1546 authentication method is used.
1549 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This
1550 option compiles in the support for adaptive spinning for lockmgrs
1551 which want to enable it. The lockinit() function now accepts the flag
1552 LK_ADAPTIVE in order to make the lock object subject to adaptive
1553 spinning when both held in write and read mode.
1556 The layout of the structure returned by IEEE80211_IOC_STA_INFO has
1557 changed. User applications that use this ioctl need to be rebuilt.
1560 The layout of struct thread has changed. Kernel and modules need to
1564 The layout of structs ifnet, domain, protosw and vnet_net has changed.
1565 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097.
1568 window(1) has been removed from the base system. It can now be
1569 installed from ports. The port is called misc/window.
1572 The way we are storing and accessing `routing table' entries has
1573 changed. Programs reading the FIB, like netstat, need to be
1577 A new netisr implementation has been added for FreeBSD 8. Network
1578 file system modules, such as igmp, ipdivert, and others, should be
1580 Bump __FreeBSD_version to 800096.
1583 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no
1587 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
1588 Bump __FreeBSD_version to 800094.
1591 Add mnt_xflag field to 'struct mount'. File system modules need to be
1593 Bump __FreeBSD_version to 800093.
1596 The compiling option ADAPTIVE_SX has been retired while it has been
1597 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
1598 The KPI for sx_init_flags() changes as accepting flags:
1599 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has
1600 been introduced in order to handle the reversed logic.
1601 Bump __FreeBSD_version to 800092.
1604 Add support for hierarchical jails. Remove global securelevel.
1605 Bump __FreeBSD_version to 800091.
1608 The layout of struct vnet_net has changed, therefore modules
1610 Bump __FreeBSD_version to 800090.
1613 The newly imported zic(8) produces a new format in the output. Please
1614 run tzsetup(8) to install the newly created data to /etc/localtime.
1617 The sysctl tree for the usb stack has renamed from hw.usb2.* to
1618 hw.usb.* and is now consistent again with previous releases.
1621 802.11 monitor mode support was revised and driver api's were changed.
1622 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead
1623 of DLT_IEEE802_11. No user-visible data structures were changed but
1624 applications that use DLT_IEEE802_11 may require changes.
1625 Bump __FreeBSD_version to 800088.
1628 The layout of the following structs has changed: sysctl_oid,
1629 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
1630 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
1631 panics may be experienced. World rebuild is required for
1632 correctly checking networking state from userland.
1633 Bump __FreeBSD_version to 800085.
1636 MLDv2 and Source-Specific Multicast (SSM) have been merged
1637 to the IPv6 stack. VIMAGE hooks are in but not yet used.
1638 The implementation of SSM within FreeBSD's IPv6 stack closely
1639 follows the IPv4 implementation.
1641 For kernel developers:
1643 * The most important changes are that the ip6_output() and
1644 ip6_input() paths no longer take the IN6_MULTI_LOCK,
1645 and this lock has been downgraded to a non-recursive mutex.
1647 * As with the changes to the IPv4 stack to support SSM, filtering
1648 of inbound multicast traffic must now be performed by transport
1649 protocols within the IPv6 stack. This does not apply to TCP and
1650 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
1652 * The KPIs used by IPv6 multicast are similar to those used by
1653 the IPv4 stack, with the following differences:
1654 * im6o_mc_filter() is analogous to imo_multicast_filter().
1655 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
1656 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
1657 * IN6_LOOKUP_MULTI() has been deprecated and removed.
1658 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
1659 for MLDv1 have an additional 'timer' argument which is used to
1660 jitter the initial membership report for the solicited-node
1661 multicast membership on-link.
1662 * This is not strictly needed for MLDv2, which already jitters
1663 its report transmissions. However, the 'timer' argument is
1664 preserved in case MLDv1 is active on the interface.
1666 * The KAME linked-list based IPv6 membership implementation has
1667 been refactored to use a vector similar to that used by the IPv4
1669 Code which maintains a list of its own multicast memberships
1670 internally, e.g. carp, has been updated to reflect the new
1673 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
1674 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
1675 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
1676 implementation constraint which needs to be addressed in HEAD.
1678 For application developers:
1680 * The changes are broadly similar to those made for the IPv4
1683 * The use of IPv4 and IPv6 multicast socket options on the same
1684 socket, using mapped addresses, HAS NOT been tested or supported.
1686 * There are a number of issues with the implementation of various
1687 IPv6 multicast APIs which need to be resolved in the API surface
1688 before the implementation is fully compatible with KAME userland
1689 use, and these are mostly to do with interface index treatment.
1691 * The literature available discusses the use of either the delta / ASM
1692 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
1693 using setsourcefilter(3)/getsourcefilter(3). For more information
1694 please refer to RFC 3768, 'Socket Interface Extensions for
1695 Multicast Source Filters'.
1697 * Applications which use the published RFC 3678 APIs should be fine.
1699 For systems administrators:
1701 * The mtest(8) utility has been refactored to support IPv6, in
1702 addition to IPv4. Interface addresses are no longer accepted
1703 as arguments, their names must be used instead. The utility
1704 will map the interface name to its first IPv4 address as
1705 returned by getifaddrs(3).
1707 * The ifmcstat(8) utility has also been updated to print the MLDv2
1708 endpoint state and source filter lists via sysctl(3).
1710 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
1711 loopback of IPv6 multicast datagrams by default; it defaults to 1
1712 to preserve the existing behaviour. Disabling multicast loopback is
1713 recommended for optimal system performance.
1715 * The IPv6 MROUTING code has been changed to examine this sysctl
1716 instead of attempting to perform a group lookup before looping
1717 back forwarded datagrams.
1719 Bump __FreeBSD_version to 800084.
1722 Implement low-level Bluetooth HCI API.
1723 Bump __FreeBSD_version to 800083.
1726 The layout of struct malloc_type, used by modules to register new
1727 memory allocation types, has changed. Most modules will need to
1728 be rebuilt or panics may be experienced.
1729 Bump __FreeBSD_version to 800081.
1732 Anticipate overflowing inp_flags - add inp_flags2.
1733 This changes most offsets in inpcb, so checking v4 connection
1734 state will require a world rebuild.
1735 Bump __FreeBSD_version to 800080.
1738 Add an llentry to struct route and struct route_in6. Modules
1739 embedding a struct route will need to be recompiled.
1740 Bump __FreeBSD_version to 800079.
1743 The size of rt_metrics_lite and by extension rtentry has changed.
1744 Networking administration apps will need to be recompiled.
1745 The route command now supports show as an alias for get, weighting
1746 of routes, sticky and nostick flags to alter the behavior of stateful
1748 Bump __FreeBSD_version to 800078.
1751 Do not use Giant for kbdmux(4) locking. This is wrong and
1752 apparently causing more problems than it solves. This will
1753 re-open the issue where interrupt handlers may race with
1754 kbdmux(4) in polling mode. Typical symptoms include (but
1755 not limited to) duplicated and/or missing characters when
1756 low level console functions (such as gets) are used while
1757 interrupts are enabled (for example geli password prompt,
1758 mountroot prompt etc.). Disabling kbdmux(4) may help.
1761 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
1762 kernel modules referencing any of the above need to be recompiled.
1763 Bump __FreeBSD_version to 800075.
1766 GEOM_PART has become the default partition slicer for storage devices,
1767 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
1768 introduces some changes:
1770 MSDOS/EBR: the devices created from MSDOS extended partition entries
1771 (EBR) can be named differently than with GEOM_MBR and are now symlinks
1772 to devices with offset-based names. fstabs may need to be modified.
1774 BSD: the "geometry does not match label" warning is harmless in most
1775 cases but it points to problems in file system misalignment with
1776 disk geometry. The "c" partition is now implicit, covers the whole
1777 top-level drive and cannot be (mis)used by users.
1779 General: Kernel dumps are now not allowed to be written to devices
1780 whose partition types indicate they are meant to be used for file
1781 systems (or, in case of MSDOS partitions, as something else than
1784 Most of these changes date approximately from 200812.
1787 The uscanner(4) driver has been removed from the kernel. This follows
1788 Linux removing theirs in 2.6 and making libusb the default interface
1789 (supported by sane).
1792 The multicast forwarding code has been cleaned up. netstat(1)
1793 only relies on KVM now for printing bandwidth upcall meters.
1794 The IPv4 and IPv6 modules are split into ip_mroute_mod and
1795 ip6_mroute_mod respectively. The config(5) options for statically
1796 compiling this code remain the same, i.e. 'options MROUTING'.
1799 Support for the IFF_NEEDSGIANT network interface flag has been
1800 removed, which means that non-MPSAFE network device drivers are no
1801 longer supported. In particular, if_ar, if_sr, and network device
1802 drivers from the old (legacy) USB stack can no longer be built or
1806 POSIX.1 Native Language Support (NLS) has been enabled in libc and
1807 a bunch of new language catalog files have also been added.
1808 This means that some common libc messages are now localized and
1809 they depend on the LC_MESSAGES environmental variable.
1812 The k8temp(4) driver has been renamed to amdtemp(4) since
1813 support for Family 10 and Family 11 CPU families was added.
1816 IGMPv3 and Source-Specific Multicast (SSM) have been merged
1817 to the IPv4 stack. VIMAGE hooks are in but not yet used.
1819 For kernel developers, the most important changes are that the
1820 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
1821 and this lock has been downgraded to a non-recursive mutex.
1823 Transport protocols (UDP, Raw IP) are now responsible for filtering
1824 inbound multicast traffic according to group membership and source
1825 filters. The imo_multicast_filter() KPI exists for this purpose.
1826 Transports which do not use multicast (SCTP, TCP) already reject
1827 multicast by default. Forwarding and receive performance may improve
1828 as a mutex acquisition is no longer needed in the ip_input()
1829 low-level input path. in_addmulti() and in_delmulti() are shimmed
1830 to new KPIs which exist to support SSM in-kernel.
1832 For application developers, it is recommended that loopback of
1833 multicast datagrams be disabled for best performance, as this
1834 will still cause the lock to be taken for each looped-back
1835 datagram transmission. The net.inet.ip.mcast.loop sysctl may
1836 be tuned to 0 to disable loopback by default; it defaults to 1
1837 to preserve the existing behaviour.
1839 For systems administrators, to obtain best performance with
1840 multicast reception and multiple groups, it is always recommended
1841 that a card with a suitably precise hash filter is used. Hash
1842 collisions will still result in the lock being taken within the
1843 transport protocol input path to check group membership.
1845 If deploying FreeBSD in an environment with IGMP snooping switches,
1846 it is recommended that the net.inet.igmp.sendlocal sysctl remain
1847 enabled; this forces 224.0.0.0/24 group membership to be announced
1850 The size of 'struct igmpstat' has changed; netstat needs to be
1851 recompiled to reflect this.
1852 Bump __FreeBSD_version to 800070.
1855 libusb20.so.1 is now installed as libusb.so.1 and the ports system
1856 updated to use it. This requires a buildworld/installworld in order to
1857 update the library and dependencies (usbconfig, etc). Its advisable to
1858 rebuild all ports which uses libusb. More specific directions are given
1859 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
1860 libusb are no longer required and can be removed.
1863 A workaround is committed to allow the creation of System V shared
1864 memory segment of size > 2 GB on the 64-bit architectures.
1865 Due to a limitation of the existing ABI, the shm_segsz member
1866 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
1867 wrong for large segments. Note that limits must be explicitly
1868 raised to allow such segments to be created.
1871 The layout of struct ifnet has changed, requiring a rebuild of all
1872 network device driver modules.
1875 The /dev handling for the new USB stack has changed, a
1876 buildworld/installworld is required for libusb20.
1879 The new USB2 stack has now been permanently moved in and all kernel and
1880 module names reverted to their previous values (eg, usb, ehci, ohci,
1881 ums, ...). The old usb stack can be compiled in by prefixing the name
1882 with the letter 'o', the old usb modules have been removed.
1883 Updating entry 20090216 for xorg and 20090215 for libmap may still
1887 The rc.conf(5) option if_up_delay has been renamed to
1888 defaultroute_delay to better reflect its purpose. If you have
1889 customized this setting in /etc/rc.conf you need to update it to
1893 xorg 7.4 wants to configure its input devices via hald which does not
1894 yet work with USB2. If the keyboard/mouse does not work in xorg then
1896 Option "AllowEmptyInput" "off"
1897 to your ServerLayout section. This will cause X to use the configured
1898 kbd and mouse sections from your xorg.conf.
1901 The GENERIC kernels for all architectures now default to the new USB2
1902 stack. No kernel config options or code have been removed so if a
1903 problem arises please report it and optionally revert to the old USB
1904 stack. If you are loading USB kernel modules or have a custom kernel
1905 that includes GENERIC then ensure that usb names are also changed over,
1906 eg uftdi -> usb2_serial_ftdi.
1908 Older programs linked against the ports libusb 0.1 need to be
1909 redirected to the new stack's libusb20. /etc/libmap.conf can
1911 # Map old usb library to new one for usb2 stack
1912 libusb-0.1.so.8 libusb20.so.1
1915 All USB ethernet devices now attach as interfaces under the name ueN
1916 (eg. ue0). This is to provide a predictable name as vendors often
1917 change usb chipsets in a product without notice.
1920 The ichsmb(4) driver has been changed to require SMBus slave
1921 addresses be left-justified (xxxxxxx0b) rather than right-justified.
1922 All of the other SMBus controller drivers require left-justified
1923 slave addresses, so this change makes all the drivers provide the
1927 INET6 statistics (struct ip6stat) was updated.
1928 netstat(1) needs to be recompiled.
1931 NTFS has been removed from GENERIC kernel on amd64 to match
1932 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
1933 will load ntfs.ko module automatically when NTFS support is
1934 actually needed, unless ntfs.ko is not installed or security
1935 level prohibits loading kernel modules. If either is the case,
1936 "options NTFS" has to be added into kernel config.
1939 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
1940 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
1941 800061. User space tools that rely on the size of struct tcpcb in
1942 tcp_var.h (e.g. sockstat) need to be recompiled.
1945 ng_tty(4) module updated to match the new TTY subsystem.
1946 Due to API change, user-level applications must be updated.
1947 New API support added to mpd5 CVS and expected to be present
1948 in next mpd5.3 release.
1951 With __FreeBSD_version 800060 the makefs tool is part of
1952 the base system (it was a port).
1955 The afdata and ifnet locks have been changed from mutexes to
1956 rwlocks, network modules will need to be re-compiled.
1959 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
1960 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
1961 The new code reduced struct rtentry{} by 16 bytes on 32-bit
1962 architecture and 40 bytes on 64-bit architecture. The userland
1963 applications "arp" and "ndp" have been updated accordingly.
1964 The output from "netstat -r" shows only routing entries and
1965 none of the L2 information.
1968 __FreeBSD_version 800057 marks the switchover from the
1969 binary ath hal to source code. Users must add the line:
1971 options AH_SUPPORT_AR5416
1973 to their kernel config files when specifying:
1977 The ath_hal module no longer exists; the code is now compiled
1978 together with the driver in the ath module. It is now
1979 possible to tailor chip support (i.e. reduce the set of chips
1980 and thereby the code size); consult ath_hal(4) for details.
1983 __FreeBSD_version 800054 adds memory barriers to
1984 <machine/atomic.h>, new interfaces to ifnet to facilitate
1985 multiple hardware transmit queues for cards that support
1986 them, and a lock-less ring-buffer implementation to
1987 enable drivers to more efficiently manage queueing of
1991 A new version of ZFS (version 13) has been merged to -HEAD.
1992 This version has zpool attribute "listsnapshots" off by
1993 default, which means "zfs list" does not show snapshots,
1994 and is the same as Solaris behavior.
1997 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
2000 The uhci, ohci, ehci and slhci USB Host controller drivers have
2001 been put into separate modules. If you load the usb module
2002 separately through loader.conf you will need to load the
2003 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
2004 controller add the following to loader.conf:
2010 The ABI used by the PMC toolset has changed. Please keep
2011 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
2015 atapci kernel module now includes only generic PCI ATA
2016 driver. AHCI driver moved to ataahci kernel module.
2017 All vendor-specific code moved into separate kernel modules:
2018 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
2019 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
2020 atamarvell, atamicron, atanational, atanetcell, atanvidia,
2021 atapromise, ataserverworks, atasiliconimage, atasis, atavia
2024 The TTY subsystem of the kernel has been replaced by a new
2025 implementation, which provides better scalability and an
2026 improved driver model. Most common drivers have been migrated to
2027 the new TTY subsystem, while others have not. The following
2028 drivers have not yet been ported to the new TTY layer:
2031 cy, digi, rc, rp, sio
2037 ng_h4, ng_tty, ppp, sl, snp
2039 Adding these drivers to your kernel configuration file shall
2040 cause compilation to fail.
2043 ntpd has been upgraded to 4.2.4p5.
2046 OpenSSH has been upgraded to 5.1p1.
2048 For many years, FreeBSD's version of OpenSSH preferred DSA
2049 over RSA for host and user authentication keys. With this
2050 upgrade, we've switched to the vendor's default of RSA over
2051 DSA. This may cause upgraded clients to warn about unknown
2052 host keys even for previously known hosts. Users should
2053 follow the usual procedure for verifying host keys before
2054 accepting the RSA key.
2056 This can be circumvented by setting the "HostKeyAlgorithms"
2057 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
2060 Please note that the sequence of keys offered for
2061 authentication has been changed as well. You may want to
2062 specify IdentityFile in a different order to revert this
2066 The sio(4) driver has been removed from the i386 and amd64
2067 kernel configuration files. This means uart(4) is now the
2068 default serial port driver on those platforms as well.
2070 To prevent collisions with the sio(4) driver, the uart(4) driver
2071 uses different names for its device nodes. This means the
2072 onboard serial port will now most likely be called "ttyu0"
2073 instead of "ttyd0". You may need to reconfigure applications to
2074 use the new device names.
2076 When using the serial port as a boot console, be sure to update
2077 /boot/device.hints and /etc/ttys before booting the new kernel.
2078 If you forget to do so, you can still manually specify the hints
2079 at the loader prompt:
2081 set hint.uart.0.at="isa"
2082 set hint.uart.0.port="0x3F8"
2083 set hint.uart.0.flags="0x10"
2084 set hint.uart.0.irq="4"
2088 The gpt(8) utility has been removed. Use gpart(8) to partition
2092 The version that Linuxulator emulates was changed from 2.4.2
2093 to 2.6.16. If you experience any problems with Linux binaries
2094 please try to set sysctl compat.linux.osrelease to 2.4.2 and
2095 if it fixes the problem contact emulation mailing list.
2098 ISDN4BSD (I4B) was removed from the src tree. You may need to
2099 update a your kernel configuration and remove relevant entries.
2102 I have checked in code to support multiple routing tables.
2103 See the man pages setfib(1) and setfib(2).
2104 This is a hopefully backwards compatible version,
2105 but to make use of it you need to compile your kernel
2106 with options ROUTETABLES=2 (or more up to 16).
2109 The 802.11 wireless support was redone to enable multi-bss
2110 operation on devices that are capable. The underlying device
2111 is no longer used directly but instead wlanX devices are
2112 cloned with ifconfig. This requires changes to rc.conf files.
2113 For example, change:
2114 ifconfig_ath0="WPA DHCP"
2117 ifconfig_wlan0="WPA DHCP"
2118 see rc.conf(5) for more details. In addition, mergemaster of
2119 /etc/rc.d is highly recommended. Simultaneous update of userland
2120 and kernel wouldn't hurt either.
2122 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
2123 modules were merged into the base wlan module. All references
2124 to these modules (e.g. in kernel config files) must be removed.
2127 psm(4) has gained write(2) support in native operation level.
2128 Arbitrary commands can be written to /dev/psm%d and status can
2129 be read back from it. Therefore, an application is responsible
2130 for status validation and error recovery. It is a no-op in
2131 other operation levels.
2134 Support for KSE threading has been removed from the kernel. To
2135 run legacy applications linked against KSE libmap.conf may
2136 be used. The following libmap.conf may be used to ensure
2137 compatibility with any prior release:
2139 libpthread.so.1 libthr.so.1
2140 libpthread.so.2 libthr.so.2
2141 libkse.so.3 libthr.so.3
2144 The layout of struct vmspace has changed. This affects libkvm
2145 and any executables that link against libkvm and use the
2146 kvm_getprocs() function. In particular, but not exclusively,
2147 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
2148 The effects are minimal, but it's advisable to upgrade world
2152 The latest em driver no longer has support in it for the
2153 82575 adapter, this is now moved to the igb driver. The
2154 split was done to make new features that are incompatible
2155 with older hardware easier to do.
2158 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
2159 likewise the kernel option is now GEOM_LINUX_LVM.
2162 The default NFS mount mode has changed from UDP to TCP for
2163 increased reliability. If you rely on (insecurely) NFS
2164 mounting across a firewall you may need to update your
2168 Belatedly note the addition of m_collapse for compacting
2172 The fts(3) structures have been changed to use adequate
2173 integer types for their members and so to be able to cope
2174 with huge file trees. The old fts(3) ABI is preserved
2175 through symbol versioning in libc, so third-party binaries
2176 using fts(3) should still work, although they will not take
2177 advantage of the extended types. At the same time, some
2178 third-party software might fail to build after this change
2179 due to unportable assumptions made in its source code about
2180 fts(3) structure members. Such software should be fixed
2181 by its vendor or, in the worst case, in the ports tree.
2182 FreeBSD_version 800015 marks this change for the unlikely
2183 case that a portable fix is impossible.
2186 To upgrade to -current after this date, you must be running
2187 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
2188 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
2191 The ADAPTIVE_GIANT kernel option has been retired because its
2192 functionality is the default now.
2195 The AT keyboard emulation of sunkbd(4) has been turned on
2196 by default. In order to make the special symbols of the Sun
2197 keyboards driven by sunkbd(4) work under X these now have
2198 to be configured the same way as Sun USB keyboards driven
2199 by ukbd(4) (which also does AT keyboard emulation), f.e.:
2201 Option "XkbLayout" "us"
2202 Option "XkbRules" "xorg"
2203 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
2206 It has been decided that it is desirable to provide ABI
2207 backwards compatibility to the FreeBSD 4/5/6 versions of the
2208 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
2209 broken with the introduction of PCI domain support (see the
2210 20070930 entry). Unfortunately, this required the ABI of
2211 PCIOCGETCONF to be broken again in order to be able to
2212 provide backwards compatibility to the old version of that
2213 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
2214 again. As for prominent ports this affects neither pciutils
2215 nor xorg-server this time, the hal port needs to be rebuilt
2219 The misnamed kthread_create() and friends have been renamed
2220 to kproc_create() etc. Many of the callers already
2221 used kproc_start()..
2222 I will return kthread_create() and friends in a while
2223 with implementations that actually create threads, not procs.
2224 Renaming corresponds with version 800002.
2233 Avoid using make -j when upgrading. While generally safe, there are
2234 sometimes problems using -j to upgrade. If your upgrade fails with
2235 -j, please try again without -j. From time to time in the past there
2236 have been problems using -j with buildworld and/or installworld. This
2237 is especially true when upgrading between "distant" versions (eg one
2238 that cross a major release boundary or several minor releases, or when
2239 several months have passed on the -current branch).
2241 Sometimes, obscure build problems are the result of environment
2242 poisoning. This can happen because the make utility reads its
2243 environment when searching for values for global variables. To run
2244 your build attempts in an "environmental clean room", prefix all make
2245 commands with 'env -i '. See the env(1) manual page for more details.
2247 When upgrading from one major version to another it is generally best
2248 to upgrade to the latest code in the currently installed branch first,
2249 then do an upgrade to the new branch. This is the best-tested upgrade
2250 path, and has the highest probability of being successful. Please try
2251 this approach before reporting problems with a major version upgrade.
2253 When upgrading a live system, having a root shell around before
2254 installing anything can help undo problems. Not having a root shell
2255 around can lead to problems if pam has changed too much from your
2256 starting point to allow continued authentication after the upgrade.
2260 When upgrading the boot ZFS pool to a new version, always follow
2263 1.) recompile and reinstall the ZFS boot loader and boot block
2264 (this is part of "make buildworld" and "make installworld")
2266 2.) update the ZFS boot block on your boot drive
2268 The following example updates the ZFS boot block on the first
2269 partition (freebsd-boot) of a GPT partitioned drive ad0:
2270 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
2272 Non-boot pools do not need these updates.
2276 If you are updating from a prior version of FreeBSD (even one just
2277 a few days old), you should follow this procedure. It is the most
2278 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
2280 make kernel-toolchain
2281 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
2282 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
2284 To test a kernel once
2285 ---------------------
2286 If you just want to boot a kernel once (because you are not sure
2287 if it works, or if you want to boot a known bad kernel to provide
2288 debugging information) run
2289 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
2290 nextboot -k testkernel
2292 To just build a kernel when you know that it won't mess you up
2293 --------------------------------------------------------------
2294 This assumes you are already running a CURRENT system. Replace
2295 ${arch} with the architecture of your machine (e.g. "i386",
2296 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
2298 cd src/sys/${arch}/conf
2299 config KERNEL_NAME_HERE
2300 cd ../compile/KERNEL_NAME_HERE
2305 If this fails, go to the "To build a kernel" section.
2307 To rebuild everything and install it on the current system.
2308 -----------------------------------------------------------
2309 # Note: sometimes if you are running current you gotta do more than
2310 # is listed here if you are upgrading from a really old current.
2312 <make sure you have good level 0 dumps>
2314 make kernel KERNCONF=YOUR_KERNEL_HERE
2316 <reboot in single user> [3]
2323 To cross-install current onto a separate partition
2324 --------------------------------------------------
2325 # In this approach we use a separate partition to hold
2326 # current's root, 'usr', and 'var' directories. A partition
2327 # holding "/", "/usr" and "/var" should be about 2GB in
2330 <make sure you have good level 0 dumps>
2333 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2334 <maybe newfs current's root partition>
2335 <mount current's root partition on directory ${CURRENT_ROOT}>
2336 make installworld DESTDIR=${CURRENT_ROOT}
2337 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
2338 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
2339 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
2340 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
2341 <reboot into current>
2342 <do a "native" rebuild/install as described in the previous section>
2343 <maybe install compatibility libraries from ports/misc/compat*>
2347 To upgrade in-place from stable to current
2348 ----------------------------------------------
2349 <make sure you have good level 0 dumps>
2351 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
2353 <reboot in single user> [3]
2360 Make sure that you've read the UPDATING file to understand the
2361 tweaks to various things you need. At this point in the life
2362 cycle of current, things change often and you are on your own
2363 to cope. The defaults can also change, so please read ALL of
2364 the UPDATING entries.
2366 Also, if you are tracking -current, you must be subscribed to
2367 freebsd-current@freebsd.org. Make sure that before you update
2368 your sources that you have read and understood all the recent
2369 messages there. If in doubt, please track -stable which has
2370 much fewer pitfalls.
2372 [1] If you have third party modules, such as vmware, you
2373 should disable them at this point so they don't crash your
2376 [3] From the bootblocks, boot -s, and then do
2381 adjkerntz -i # if CMOS is wall time
2382 Also, when doing a major release upgrade, it is required that
2383 you boot into single user mode to do the installworld.
2385 [4] Note: This step is non-optional. Failure to do this step
2386 can result in a significant reduction in the functionality of the
2387 system. Attempting to do it by hand is not recommended and those
2388 that pursue this avenue should read this file carefully, as well
2389 as the archives of freebsd-current and freebsd-hackers mailing lists
2390 for potential gotchas. The -U option is also useful to consider.
2391 See mergemaster(8) for more information.
2393 [5] Usually this step is a noop. However, from time to time
2394 you may need to do this if you get unknown user in the following
2395 step. It never hurts to do it all the time. You may need to
2396 install a new mergemaster (cd src/usr.sbin/mergemaster && make
2397 install) after the buildworld before this step if you last updated
2398 from current before 20130425 or from -stable before 20130430.
2400 [6] This only deletes old files and directories. Old libraries
2401 can be deleted by "make delete-old-libs", but you have to make
2402 sure that no program is using those libraries anymore.
2404 [8] In order to have a kernel that can run the 4.x binaries needed to
2405 do an installworld, you must include the COMPAT_FREEBSD4 option in
2406 your kernel. Failure to do so may leave you with a system that is
2407 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is
2408 required to run the 5.x binaries on more recent kernels. And so on
2409 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7.
2411 Make sure that you merge any new devices from GENERIC since the
2412 last time you updated your kernel config file.
2414 [9] When checking out sources, you must include the -P flag to have
2415 cvs prune empty directories.
2417 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
2418 "?=" instead of the "=" assignment operator, so that buildworld can
2419 override the CPUTYPE if it needs to.
2421 MAKEOBJDIRPREFIX must be defined in an environment variable, and
2422 not on the command line, or in /etc/make.conf. buildworld will
2423 warn if it is improperly defined.
2426 This file contains a list, in reverse chronological order, of major
2427 breakages in tracking -current. It is not guaranteed to be a complete
2428 list of such breakages, and only contains entries since October 10, 2007.
2429 If you need to see UPDATING entries from before that date, you will need
2430 to fetch an UPDATING file from an older FreeBSD release.
2432 Copyright information:
2434 Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
2436 Redistribution, publication, translation and use, with or without
2437 modification, in full or in part, in any form or format of this
2438 document are permitted without further permission from the author.
2440 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2441 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2442 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2443 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2444 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2445 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2446 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2447 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2448 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2449 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2450 POSSIBILITY OF SUCH DAMAGE.
2452 Contact Warner Losh if you have any questions about your use of