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 p28 FreeBSD-SA-16:39.ntp
21 Fix multiple vulnerabilities of ntp.
23 20161208 p27 FreeBSD-SA-16:37.libc [revised]
25 Fix regressions introduced by SA-16:37.libc.
27 20161206 p26 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 p25 FreeBSD-SA-16:35.openssl
41 Fix OpenSSL remote DoS vulnerability. [SA-16:35]
43 20161025 p24 FreeBSD-SA-16:15.sysarch [revised]
45 Fix incorrect argument validation in sysarch(2). [SA-16:15]
47 20161010 p23 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 p22 FreeBSD-SA-16:26.openssl [revised]
59 Fix OpenSSL regression introduced in SA-16:26.
61 20160923 p21 FreeBSD-SA-16:26.openssl
63 Fix multiple OpenSSL vulnerabilitites.
65 20160725 p20 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 p19 FreeBSD-SA-16:24.ntp
75 Fix multiple vulnerabilities of ntp.
77 20160531 p18 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 p17 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 p16 FreeBSD-SA-16:17.openssl
96 Fix multiple OpenSSL vulnerabilitites. [SA-16:17]
98 Fix excessive latency in x86 IPI delivery. [EN-16:07]
100 Fix memory leak in ZFS. [EN-16:08]
102 20160429 p15 FreeBSD-SA-16:16.ntp
104 Fix multiple vulnerabilities of ntp.
106 20160316 p14 FreeBSD-SA-16:14.openssh-xauth
107 FreeBSD-SA-16:15.sysarch
108 FreeBSD-EN-16:04.hyperv
109 FreeBSD-EN-16:05.hv_netvsc
111 Fix OpenSSH xauth(1) command injection. [SA-16:14]
112 Fix incorrect argument validation in sysarch(2). [SA-16:15]
113 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04]
114 Fix hv_netvsc(4) incorrect TCP/IP checksums. [EN-16:05]
116 20160303 p13 FreeBSD-SA-16:12.openssl
118 Fix multiple vulnerabilities of OpenSSL.
120 20160130 p12 FreeBSD-SA-16:11.openssl
122 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11]
124 20160127 p11 FreeBSD-SA-16:09.ntp
125 FreeBSD-SA-16:10.linux
127 Fix multiple vulnerabilities of ntp. [SA-16:09]
129 Fix Linux compatibility layer issetugid(2) system call
130 vulnerability. [SA-16:10]
132 20160114 p10 FreeBSD-SA-16:07.openssh
134 Fix OpenSSH client information leak. [SA-16:07]
136 20160114 p9 FreeBSD-EN-16:01.filemon
138 FreeBSD-EN-16:03.yplib
139 FreeBSD-SA-16:01.sctp
141 FreeBSD-SA-16:03.linux
142 FreeBSD-SA-16:04.linux
144 FreeBSD-SA-16:06.bsnmpd
146 Fix multiple stability and locking problems in filemon(4). [EN-16:01]
147 Fix pf(4) generating bad TCP checksums. [EN-16:02]
148 Fix infinite loop in YP/NIS client library. [EN-16:03]
149 Fix remote denial of service in SCTP. [SA-16:01]
150 Update NTP to 4.2.8p5. [SA-16:02]
151 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03]
152 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04]
153 Fix crash in TCP MD5 signatures. [SA-16:05]
154 Fix insecure default permissions for snmpd.config. [SA-16:06]
156 20151205 p8 FreeBSD-SA-15:26.openssl
158 Fix multiple OpenSSL vulnerabilities. [SA-15:26]
160 20151104 p7 FreeBSD-SA-15:25.ntp [revised]
161 FreeBSD-EN-15:19.kqueue
164 Fix regression in ntpd(8) lacking support for RAWDCF reference
165 clock in 10.2-RELEASE-p6. [SA-15:25]
167 Fix kqueue write events never fired for files greater 2GB. [EN-15:19]
169 Fix applications exiting due to segmentation violation on a correct
170 memory address. [EN-15:20.vm]
172 20151026: p6 FreeBSD-SA-15:25.ntp
174 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4.
176 20151002: p5 FreeBSD-SA-15:24.rpcbind [revised]
177 Revised patch to address a regression that prevents NIS from working.
179 20150929: p4 FreeBSD-SA-15:24.rpcbind
181 Fix rpcbind(8) remote denial of service. [SA-15:24]
183 20150916: p3 FreeBSD-EN-15:16.pw
184 FreeBSD-EN-15:17.libc
187 Fix regression in pw(8) when creating numeric users or groups.
190 Fix libc handling of signals for multi-threaded processes.
193 Implement pubkey support for pkg(7) bootstrap. [EN-15:18]
195 20150825: p2 FreeBSD-SA-15:22.openssh
197 Fix OpenSSH multiple vulnerabilities. [SA-15:22]
199 Fix insufficient check of unsupported pkg(7) signature methods.
202 20150818: p1 FreeBSD-SA-15:20.expat
203 FreeBSD-EN-15:11.toolchain
204 FreeBSD-EN-15:12.netstat
205 FreeBSD-EN-15:13.vidcontrol
207 Fix multiple integer overflows in expat (libbsdxml) XML parser.
210 Fix make(1) syntax errors when upgrading from 9.x and earlier.
213 Fix incorrect netstat(1) data handling on 32-bit systems.
216 Allow size argument to vidcontrol(1) for syscons(4). [EN-15:13]
222 The default Unbound configuration now enables remote control
223 using a local socket. Users who have already enabled the
224 local_unbound service should regenerate their configuration
225 by running "service local_unbound setup" as root.
228 An additional fix for the issue described in the 20150614 sendmail
229 entry below has been been committed in revision 284786.
232 The fix for the issue described in the 20150614 sendmail entry
233 below has been been committed in revision 284485. The work
234 around described in that entry is no longer needed unless the
235 default setting is overridden by a confDH_PARAMETERS configuration
236 setting of '5' or pointing to a 512 bit DH parameter file.
239 The import of openssl to address the FreeBSD-SA-15:10.openssl
240 security advisory includes a change which rejects handshakes
241 with DH parameters below 768 bits. sendmail releases prior
242 to 8.15.2 (not yet released), defaulted to a 512 bit
243 DH parameter setting for client connections. To work around
244 this interoperability, sendmail can be configured to use a
245 2048 bit DH parameter by:
247 1. Edit /etc/mail/`hostname`.mc
248 2. If a setting for confDH_PARAMETERS does not exist or
249 exists and is set to a string beginning with '5',
251 3. If a setting for confDH_PARAMETERS exists and is set to
252 a file path, create a new file with:
253 openssl dhparam -out /path/to/file 2048
254 4. Rebuild the .cf file:
255 cd /etc/mail/; make; make install
257 cd /etc/mail/; make restart
259 A sendmail patch is coming, at which time this file will be
263 chmod, chflags, chown and chgrp now affect symlinks in -R mode as
264 defined in symlink(7); previously symlinks were silently ignored.
267 The const qualifier has been removed from iconv(3) to comply with
268 POSIX. The ports tree is aware of this from r384038 onwards.
271 At svn r275807, The default linux compat kernel ABI has been adjusted
272 to 2.6.18 in support of the linux-c6 compat ports infrastructure
273 update. If you wish to continue using the linux-f10 compat ports,
274 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are
275 encouraged to update their linux-compat packages to linux-c6 during
276 their next update cycle.
278 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports.
281 pjdfstest has been integrated into kyua as an opt-in test suite.
282 Please see share/doc/pjdfstest/README for a more details on how to
289 The ofwfb driver, used to provide a graphics console on PowerPC when
290 using vt(4), no longer allows mmap() of all of physical memory. This
291 will prevent Xorg on PowerPC with some ATI graphics cards from
292 initializing properly unless x11-servers/xorg-server is updated to
296 The libatf-c and libatf-c++ major versions were downgraded to 0 and
297 1 respectively to match the upstream numbers. They were out of
298 sync because, when they were originally added to FreeBSD, the
299 upstream versions were not respected. These libraries are private
300 and not yet built by default, so renumbering them should be a
301 non-issue. However, unclean source trees will yield broken test
302 programs once the operator executes "make delete-old-libs" after a
305 Additionally, the atf-sh binary was made private by moving it into
306 /usr/libexec/. Already-built shell test programs will keep the
307 path to the old binary so they will break after "make delete-old"
310 If you are using WITH_TESTS=yes (not the default), wipe the object
311 tree and rebuild from scratch to prevent spurious test failures.
312 This is only needed once: the misnumbered libraries and misplaced
313 binaries have been added to OptionalObsoleteFiles.inc so they will
314 be removed during a clean upgrade.
317 The ixgbe tunables now match their sysctl counterparts, for example:
318 hw.ixgbe.enable_aim => hw.ix.enable_aim
319 Anyone using ixgbe tunables should ensure they update /boot/loader.conf.
322 The NFSv4.1 server committed by r269398 changes the internal
323 function call interfaces used between the NFS and krpc modules.
324 As such, __FreeBSD_version was bumped.
327 The default unbound configuration has been modified to address
328 issues with reverse lookups on networks that use private
329 address ranges. If you use the local_unbound service, run
330 "service local_unbound setup" as root to regenerate your
331 configuration, then "service local_unbound reload" to load the
335 It is no longer necessary to include the dwarf version in your DEBUG
336 options in your kernel config file. The bug that required it to be
337 placed in the config file has bene fixed. DEBUG should now just
338 contain -g. The build system will automatically update things
339 to do the right thing.
342 Several ABI breaking changes were merged to CTL and new iSCSI code.
343 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and
344 iscsictl need to be rebuilt to work with a new kernel.
347 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
348 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
349 which differs from the behaviour controlled by this knob.)
352 On i386 and amd64 systems, the onifconsole flag is now set by default
353 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled
354 as a login TTY if it is set in the bootloader as an active kernel
355 console. No changes in behavior should result otherwise. To revert to
356 the previous behavior, set ttyu0 to "off" in /etc/ttys.
359 Clang and llvm have been upgraded to 3.4.1 release.
362 Clang and llvm have been upgraded to 3.4 release.
365 If a Makefile in a tests/ directory was auto-generating a Kyuafile
366 instead of providing an explicit one, this would prevent such
367 Makefile from providing its own Kyuafile in the future during
368 NO_CLEAN builds. This has been fixed in the Makefiles but manual
369 intervention is needed to clean an objdir if you use NO_CLEAN:
370 # find /usr/obj -name Kyuafile | xargs rm -f
373 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
374 capability mode support. Please note that enabling the feature in
375 kernel is still highly recommended.
378 OpenSSH is now built with sandbox support, and will use sandbox as
379 the default privilege separation method. This requires Capsicum
380 capability mode support in kernel.
383 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has
384 been deprecated and will not be part of FreeBSD 11.0 and later
385 releases. If you use this driver, please consider switching to
386 the nfe(4) driver instead.
392 The behavior of gss_pseudo_random() for the krb5 mechanism
393 has changed, for applications requesting a longer random string
394 than produced by the underlying enctype's pseudo-random() function.
395 In particular, the random string produced from a session key of
396 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
397 be different at the 17th octet and later, after this change.
398 The counter used in the PRF+ construction is now encoded as a
399 big-endian integer in accordance with RFC 4402.
400 __FreeBSD_version is bumped to 1000701.
403 The WITHOUT_ATF build knob has been removed and its functionality
404 has been subsumed into the more generic WITHOUT_TESTS. If you were
405 using the former to disable the build of the ATF libraries, you
406 should change your settings to use the latter.
409 The default version of mtree is nmtree which is obtained from
410 NetBSD. The output is generally the same, but may vary
411 slightly. If you found you need identical output adding
412 "-F freebsd9" to the command line should do the trick. For the
413 time being, the old mtree is available as fmtree.
416 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
417 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
418 1.1.4_8 and verify bsdyml not linked in, before running "make
420 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
422 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
425 The rc.d/jail script has been updated to support jail(8)
426 configuration file. The "jail_<jname>_*" rc.conf(5) variables
427 for per-jail configuration are automatically converted to
428 /var/run/jail.<jname>.conf before the jail(8) utility is invoked.
429 This is transparently backward compatible. See below about some
430 incompatibilities and rc.conf(5) manual page for more details.
432 These variables are now deprecated in favor of jail(8) configuration
433 file. One can use "rc.d/jail config <jname>" command to generate
434 a jail(8) configuration file in /var/run/jail.<jname>.conf without
435 running the jail(8) utility. The default pathname of the
436 configuration file is /etc/jail.conf and can be specified by
437 using $jail_conf or $jail_<jname>_conf variables.
439 Please note that jail_devfs_ruleset accepts an integer at
440 this moment. Please consider to rewrite the ruleset name
444 BIND has been removed from the base system. If all you need
445 is a local resolver, simply enable and start the local_unbound
446 service instead. Otherwise, several versions of BIND are
447 available in the ports tree. The dns/bind99 port is one example.
449 With this change, nslookup(1) and dig(1) are no longer in the base
450 system. Users should instead use host(1) and drill(1) which are
451 in the base system. Alternatively, nslookup and dig can
452 be obtained by installing the dns/bind-tools port.
455 With the addition of unbound(8), a new unbound user is now
456 required during installworld. "mergemaster -p" can be used to
457 add the user prior to installworld, as documented in the handbook.
460 OpenSSH is now built with DNSSEC support, and will by default
461 silently trust signed SSHFP records. This can be controlled with
462 the VerifyHostKeyDNS client configuration setting. DNSSEC support
463 can be disabled entirely with the WITHOUT_LDNS option in src.conf.
466 The GNU Compiler Collection and C++ standard library (libstdc++)
467 are no longer built by default on platforms where clang is the system
468 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX
472 The PROCDESC kernel option is now part of the GENERIC kernel
473 configuration and is required for the rwhod(8) to work.
474 If you are using custom kernel configuration, you should include
478 The API and ABI related to the Capsicum framework was modified
479 in backward incompatible way. The userland libraries and programs
480 have to be recompiled to work with the new kernel. This includes the
481 following libraries and programs, but the whole buildworld is
482 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl,
483 kdump, procstat, rwho, rwhod, uniq.
486 AES-NI intrinsic support has been added to gcc. The AES-NI module
487 has been updated to use this support. A new gcc is required to build
488 the aesni module on both i386 and amd64.
491 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices.
492 Thus "device padlock_rng" and "device rdrand_rng" should be
493 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG".
496 WITH_ICONV has been split into two feature sets. WITH_ICONV now
497 enables just the iconv* functionality and is now on by default.
498 WITH_LIBICONV_COMPAT enables the libiconv api and link time
499 compatability. Set WITHOUT_ICONV to build the old way.
500 If you have been using WITH_ICONV before, you will very likely
501 need to turn on WITH_LIBICONV_COMPAT.
504 INVARIANTS option now enables DEBUG for code with OpenSolaris and
505 Illumos origin, including ZFS. If you have INVARIANTS in your
506 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG
508 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS)
509 locks if WITNESS option was set. Because that generated a lot of
510 witness(9) reports and all of them were believed to be false
511 positives, this is no longer done. New option OPENSOLARIS_WITNESS
512 can be used to achieve the previous behavior.
515 Timer values in IPv6 data structures now use time_uptime instead
516 of time_second. Although this is not a user-visible functional
517 change, userland utilities which directly use them---ndp(8),
518 rtadvd(8), and rtsold(8) in the base system---need to be updated
522 find -delete can now delete the pathnames given as arguments,
523 instead of only files found below them or if the pathname did
524 not contain any slashes. Formerly, the following error message
527 find: -delete: <path>: relative path potentially not safe
529 Deleting the pathnames given as arguments can be prevented
530 without error messages using -mindepth 1 or by changing
531 directory and passing "." as argument to find. This works in the
532 old as well as the new version of find.
535 Behavior of devfs rules path matching has been changed.
536 Pattern is now always matched against fully qualified devfs
537 path and slash characters must be explicitly matched by
538 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs
539 subdirectories must be reviewed.
542 The default ARM ABI has changed to the ARM EABI. The old ABI is
543 incompatible with the ARM EABI and all programs and modules will
544 need to be rebuilt to work with a new kernel.
546 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set.
548 NOTE: Support for the old ABI will be removed in the future and
549 users are advised to upgrade.
552 pkg_install has been disconnected from the build if you really need it
553 you should add WITH_PKGTOOLS in your src.conf(5).
556 Most of network statistics structures were changed to be able
557 keep 64-bits counters. Thus all tools, that work with networking
558 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.)
561 Fix targets that run multiple make's to use && rather than ;
562 so that subsequent steps depend on success of previous.
564 NOTE: if building 'universe' with -j* on stable/8 or stable/9
565 it would be better to start the build using bmake, to avoid
566 overloading the machine.
569 Fix a bug that allowed a tracing process (e.g. gdb) to write
570 to a memory-mapped file in the traced process's address space
571 even if neither the traced process nor the tracing process had
572 write access to that file.
575 CVS has been removed from the base system. An exact copy
576 of the code is available from the devel/cvs port.
579 Some people report the following error after the switch to bmake:
581 make: illegal option -- J
582 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable]
584 *** [buildworld] Error code 2
586 this likely due to an old instance of make in
587 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE})
588 which src/Makefile will use that blindly, if it exists, so if
589 you see the above error:
591 rm -rf `make -V MAKEPATH`
596 Use bmake by default.
597 Whereas before one could choose to build with bmake via
598 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old
599 make. The goal is to remove these knobs for 10-RELEASE.
601 It is worth noting that bmake (like gmake) treats the command
602 line as the unit of failure, rather than statements within the
603 command line. Thus '(cd some/where && dosomething)' is safer
604 than 'cd some/where; dosomething'. The '()' allows consistent
605 behavior in parallel build.
608 Fix a bug that allows NFS clients to issue READDIR on files.
611 The WITHOUT_IDEA option has been removed because
612 the IDEA patent expired.
615 The sysctl which controls TRIM support under ZFS has been renamed
616 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been
620 The mergemaster command now uses the default MAKEOBJDIRPREFIX
621 rather than creating it's own in the temporary directory in
622 order allow access to bootstrapped versions of tools such as
623 install and mtree. When upgrading from version of FreeBSD where
624 the install command does not support -l, you will need to
625 install a new mergemaster command if mergemaster -p is required.
626 This can be accomplished with the command (cd src/usr.sbin/mergemaster
630 Legacy ATA stack, disabled and replaced by new CAM-based one since
631 FreeBSD 9.0, completely removed from the sources. Kernel modules
632 atadisk and atapi*, user-level tools atacontrol and burncd are
633 removed. Kernel option `options ATA_CAM` is now permanently enabled
637 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2)
638 and socketpair(2). Software, in particular Kerberos, may
639 automatically detect and use these during building. The resulting
640 binaries will not work on older kernels.
643 CTL_DISABLE has also been added to the sparc64 GENERIC (for further
644 information, see the respective 20130304 entry).
647 Recent commits to callout(9) changed the size of struct callout,
648 so the KBI is probably heavily disturbed. Also, some functions
649 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced
650 by macros. Every kernel module using it won't load, so rebuild
653 The ctl device has been re-enabled in GENERIC for i386 and amd64,
654 but does not initialize by default (because of the new CTL_DISABLE
655 option) to save memory. To re-enable it, remove the CTL_DISABLE
656 option from the kernel config file or set kern.cam.ctl.disable=0
657 in /boot/loader.conf.
660 The ctl device has been disabled in GENERIC for i386 and amd64.
661 This was done due to the extra memory being allocated at system
662 initialisation time by the ctl driver which was only used if
663 a CAM target device was created. This makes a FreeBSD system
664 unusable on 128MB or less of RAM.
667 A new compression method (lz4) has been merged to -HEAD. Please
668 refer to zpool-features(7) for more information.
670 Please refer to the "ZFS notes" section of this file for information
671 on upgrading boot ZFS pools.
674 A BSD-licensed patch(1) variant has been added and is installed
675 as bsdpatch, being the GNU version the default patch.
676 To inverse the logic and use the BSD-licensed one as default,
677 while having the GNU version installed as gnupatch, rebuild
678 and install world with the WITH_BSD_PATCH knob set.
681 Due to the use of the new -l option to install(1) during build
682 and install, you must take care not to directly set the INSTALL
683 make variable in your /etc/make.conf, /etc/src.conf, or on the
684 command line. If you wish to use the -C flag for all installs
685 you may be able to add INSTALL+=-C to /etc/make.conf or
689 The install(1) option -M has changed meaning and now takes an
690 argument that is a file or path to append logs to. In the
691 unlikely event that -M was the last option on the command line
692 and the command line contained at least two files and a target
693 directory the first file will have logs appended to it. The -M
694 option served little practical purpose in the last decade so its
695 use is expected to be extremely rare.
698 After switching to Clang as the default compiler some users of ZFS
699 on i386 systems started to experience stack overflow kernel panics.
700 Please consider using 'options KSTACK_PAGES=4' in such configurations.
703 GEOM_LABEL now mangles label names read from file system metadata.
704 Mangling affect labels containing spaces, non-printable characters,
705 '%' or '"'. Device names in /etc/fstab and other places may need to
709 By default, only the 10 most recent kernel dumps will be saved. To
710 restore the previous behaviour (no limit on the number of kernel dumps
711 stored in the dump directory) add the following line to /etc/rc.conf:
716 With the addition of auditdistd(8), a new auditdistd user is now
717 required during installworld. "mergemaster -p" can be used to
718 add the user prior to installworld, as documented in the handbook.
721 The sin6_scope_id member variable in struct sockaddr_in6 is now
722 filled by the kernel before passing the structure to the userland via
723 sysctl or routing socket. This means the KAME-specific embedded scope
724 id in sin6_addr.s6_addr[2] is always cleared in userland application.
725 This behavior can be controlled by net.inet6.ip6.deembed_scopeid.
726 __FreeBSD_version is bumped to 1000025.
729 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default.
730 This means that the world and kernel will be compiled with clang
731 and that clang will be installed as /usr/bin/cc, /usr/bin/c++,
732 and /usr/bin/cpp. To disable this behavior and revert to building
733 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions
734 of current may need to bootstrap WITHOUT_CLANG first if the clang
735 build fails (its compatibility window doesn't extend to the 9 stable
739 The IPFIREWALL_FORWARD kernel option has been removed. Its
740 functionality now turned on by default.
743 The ZERO_COPY_SOCKET kernel option has been removed and
744 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP.
745 NB: SOCKET_SEND_COW uses the VM page based copy-on-write
746 mechanism which is not safe and may result in kernel crashes.
747 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current
748 driver supports disposeable external page sized mbuf storage.
749 Proper replacements for both zero-copy mechanisms are under
750 consideration and will eventually lead to complete removal
751 of the two kernel options.
754 The IPv4 network stack has been converted to network byte
755 order. The following modules need to be recompiled together
756 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4),
757 pf(4), ipfw(4), ng_ipfw(4), stf(4).
760 Support for non-MPSAFE filesystems was removed from VFS. The
761 VFS_VERSION was bumped, all filesystem modules shall be
765 All the non-MPSAFE filesystems have been disconnected from
766 the build. The full list includes: codafs, hpfs, ntfs, nwfs,
767 portalfs, smbfs, xfs.
770 The interface cloning API and ABI has changed. The following
771 modules need to be recompiled together with kernel:
772 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4),
773 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4),
774 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4).
777 The sdhci driver was split in two parts: sdhci (generic SD Host
778 Controller logic) and sdhci_pci (actual hardware driver).
779 No kernel config modifications are required, but if you
780 load sdhc as a module you must switch to sdhci_pci instead.
783 Import the FUSE kernel and userland support into base system.
786 The GNU sort(1) program has been removed since the BSD-licensed
787 sort(1) has been the default for quite some time and no serious
788 problems have been reported. The corresponding WITH_GNU_SORT
792 The pfil(9) API/ABI for AF_INET family has been changed. Packet
793 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled
797 The net80211(4) ABI has been changed to allow for improved driver
798 PS-POLL and power-save support. All wireless drivers need to be
799 recompiled to work with the new kernel.
802 The random(4) support for the VIA hardware random number
803 generator (`PADLOCK') is no longer enabled unconditionally.
804 Add the padlock_rng device in the custom kernel config if
805 needed. The GENERIC kernels on i386 and amd64 do include the
806 device, so the change only affects the custom kernel
810 The pf(4) packet filter ABI has been changed. pfctl(8) and
811 snmp_pf module need to be recompiled to work with new kernel.
814 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged
815 to -HEAD. Pools that have empty_bpobj in active state can not be
816 imported read-write with ZFS implementations that do not support
817 this feature. For more information read the zpool-features(5)
821 The sparc64 ZFS loader has been changed to no longer try to auto-
822 detect ZFS providers based on diskN aliases but now requires these
823 to be explicitly listed in the OFW boot-device environment variable.
826 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring
827 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are
828 configuration changes. Make sure to merge /etc/ssl/openssl.cnf.
831 The following sysctls and tunables have been renamed for consistency
832 with other variables:
833 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered
834 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered
837 The sort utility has been replaced with BSD sort. For now, GNU sort
838 is also available as "gnusort" or the default can be set back to
839 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be
840 installed as "bsdsort".
843 A new version of ZFS (pool version 5000) has been merged to -HEAD.
844 Starting with this version the old system of ZFS pool versioning
845 is superseded by "feature flags". This concept enables forward
846 compatibility against certain future changes in functionality of ZFS
847 pools. The first read-only compatible "feature flag" for ZFS pools
848 is named "com.delphix:async_destroy". For more information
849 read the new zpool-features(5) manual page.
850 Please refer to the "ZFS notes" section of this file for information
851 on upgrading boot ZFS pools.
854 The malloc(3) implementation embedded in libc now uses sources imported
855 as contrib/jemalloc. The most disruptive API change is to
856 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf,
857 delete it prior to installworld, and optionally re-create it using the
858 new format after rebooting. See malloc.conf(5) for details
859 (specifically the TUNING section and the "opt.*" entries in the MALLCTL
863 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb
864 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is
865 now spelled mips. This is to aid compatibility with third-party
866 software that expects this naming scheme in uname(3). Little-endian
867 settings are unchanged. If you are updating a big-endian mips64 machine
868 from before this change, you may need to set MACHINE_ARCH=mips64 in
869 your environment before the new build system will recognize your machine.
872 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported
876 Now unix domain sockets behave "as expected" on nullfs(5). Previously
877 nullfs(5) did not pass through all behaviours to the underlying layer,
878 as a result if we bound to a socket on the lower layer we could connect
879 only to the lower path; if we bound to the upper layer we could connect
880 only to the upper path. The new behavior is one can connect to both the
881 lower and the upper paths regardless what layer path one binds to.
884 The getifaddrs upgrade path broken with 20111215 has been restored.
885 If you have upgraded in between 20111215 and 20120209 you need to
886 recompile libc again with your kernel. You still need to recompile
887 world to be able to configure CARP but this restriction already
891 The set_rcvar() function has been removed from /etc/rc.subr. All
892 base and ports rc.d scripts have been updated, so if you have a
893 port installed with a script in /usr/local/etc/rc.d you can either
894 hand-edit the rcvar= line, or reinstall the port.
896 An easy way to handle the mass-update of /etc/rc.d:
897 rm /etc/rc.d/* && mergemaster -i
900 panic(9) now stops other CPUs in the SMP systems, disables interrupts
901 on the current CPU and prevents other threads from running.
902 This behavior can be reverted using the kern.stop_scheduler_on_panic
904 The new behavior can be incompatible with kern.sync_on_panic.
907 The carp(4) facility has been changed significantly. Configuration
908 of the CARP protocol via ifconfig(8) has changed, as well as format
909 of CARP events submitted to devd(8) has changed. See manual pages
910 for more information. The arpbalance feature of carp(4) is currently
911 not supported anymore.
913 Size of struct in_aliasreq, struct in6_aliasreq has changed. User
914 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8),
915 need to be recompiled.
918 The acpi_wmi(4) status device /dev/wmistat has been renamed to
922 The option VFS_ALLOW_NONMPSAFE option has been added in order to
923 explicitely support non-MPSAFE filesystems.
924 It is on by default for all supported platform at this present
928 The broken amd(4) driver has been replaced with esp(4) in the amd64,
929 i386 and pc98 GENERIC kernel configuration files.
932 sysinstall has been removed
935 The stable/9 branch created in subversion. This corresponds to the
936 RELENG_9 branch in CVS.
939 This commit modifies vfs_register() so that it uses a hash
940 calculation to set vfc_typenum, which is enabled by default.
941 The first time a system is booted after this change, the
942 vfc_typenum values will change for all file systems. The
943 main effect of this is a change to the NFS server file handles
944 for file systems that use vfc_typenum in their fsid, such as ZFS.
945 It will, however, prevent vfc_typenum from changing when file
946 systems are loaded in a different order for subsequent reboots.
947 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf
948 until you are ready to remount all NFS clients after a reboot.
951 Bump the shared library version numbers for libraries that
952 do not use symbol versioning, have changed the ABI compared
953 to stable/8 and which shared library version was not bumped.
954 Done as part of 9.0-RELEASE cycle.
957 During the merge of Capsicum features, the fget(9) KPI was modified.
958 This may require the rebuilding of out-of-tree device drivers --
959 issues have been reported specifically with the nVidia device driver.
960 __FreeBSD_version is bumped to 900041.
962 Also, there is a period between 20110811 and 20110814 where the
963 special devices /dev/{stdin,stdout,stderr} did not work correctly.
964 Building world from a kernel during that window may not work.
967 The packet filter (pf) code has been updated to OpenBSD 4.5.
968 You need to update userland tools to be in sync with kernel.
969 This update breaks backward compatibility with earlier pfsync(4)
970 versions. Care must be taken when updating redundant firewall setups.
973 The following sysctls and tunables are retired on x86 platforms:
975 machdep.hlt_logical_cpus
976 The following sysctl is retired:
977 machdep.hyperthreading_allowed
978 The sysctls were supposed to provide a way to dynamically offline and
979 online selected CPUs on x86 platforms, but the implementation has not
980 been reliable especially with SCHED_ULE scheduler.
981 machdep.hyperthreading_allowed tunable is still available to ignore
982 hyperthreading CPUs at OS level.
983 Individual CPUs can be disabled using hint.lapic.X.disabled tunable,
984 where X is an APIC ID of a CPU. Be advised, though, that disabling
985 CPUs in non-uniform fashion will result in non-uniform topology and
986 may lead to sub-optimal system performance with SCHED_ULE, which is
990 cpumask_t type is retired and cpuset_t is used in order to describe
994 Changes to ifconfig(8) for dynamic address family detection mandate
995 that you are running a kernel of 20110525 or later. Make sure to
996 follow the update procedure to boot a new kernel before installing
1000 Support for sun4v architecture is officially dropped
1003 Several KPI breaking changes have been committed to the mii(4) layer,
1004 the PHY drivers and consequently some Ethernet drivers using mii(4).
1005 This means that miibus.ko and the modules of the affected Ethernet
1006 drivers need to be recompiled.
1008 Note to kernel developers: Given that the OUI bit reversion problem
1009 was fixed as part of these changes all mii(4) commits related to OUIs,
1010 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific
1011 handling, no longer can be merged verbatim to stable/8 and previous
1015 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci'
1016 into their kernel configurations along with 'device pci'.
1019 The default NFS client is now the new NFS client, so fstype "newnfs"
1020 is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
1021 Although mounts via fstype "nfs" will usually work without userland
1022 changes, it is recommended that the mount(8) and mount_nfs(8)
1023 commands be rebuilt from sources and that a link to mount_nfs called
1024 mount_oldnfs be created. The new client is compiled into the
1025 kernel with "options NFSCL" and this is needed for diskless root
1026 file systems. The GENERIC kernel configs have been changed to use
1027 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER.
1028 To use the regular/old client, you can "mount -t oldnfs ...". For
1029 a diskless root file system, you must also include a line like:
1031 vfs.root.mountfrom="oldnfs:"
1033 in the boot/loader.conf on the root fs on the NFS server to make
1034 a diskless root fs use the old client.
1037 The GENERIC kernels for all architectures now default to the new
1038 CAM-based ATA stack. It means that all legacy ATA drivers were
1039 removed and replaced by respective CAM drivers. If you are using
1040 ATA device names in /etc/fstab or other places, make sure to update
1041 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY,
1042 where 'Y's are the sequential numbers starting from zero for each type
1043 in order of detection, unless configured otherwise with tunables,
1044 see cam(4)). There will be symbolic links created in /dev/ to map
1045 old adX devices to the respective adaY. They should provide basic
1046 compatibility for file systems mounting in most cases, but they do
1047 not support old user-level APIs and do not have respective providers
1048 in GEOM. Consider using updated management tools with new device names.
1050 It is possible to load devices ahci, ata, siis and mvs as modules,
1051 but option ATA_CAM should remain in kernel configuration to make ata
1052 module work as CAM driver supporting legacy ATA controllers. Device ata
1053 still can be used in modular fashion (atacore + ...). Modules atadisk
1054 and atapi* are not used and won't affect operation in ATA_CAM mode.
1055 Note that to use CAM-based ATA kernel should include CAM devices
1056 scbus, pass, da (or explicitly ada), cd and optionally others. All of
1057 them are parts of the cam module.
1059 ataraid(4) functionality is now supported by the RAID GEOM class.
1060 To use it you can load geom_raid kernel module and use graid(8) tool
1061 for management. Instead of /dev/arX device names, use /dev/raid/rX.
1063 No kernel config options or code have been removed, so if a problem
1064 arises, please report it and optionally revert to the old ATA stack.
1065 In order to do it you can remove from the kernel config:
1070 , and instead add back:
1071 device atadisk # ATA disk drives
1072 device ataraid # ATA RAID drives
1073 device atapicd # ATAPI CDROM drives
1074 device atapifd # ATAPI floppy drives
1075 device atapist # ATAPI tape drives
1078 The default NFS server has been changed to the new server, which
1079 was referred to as the experimental server. If you need to switch
1080 back to the old NFS server, you must now put the "-o" option on
1081 both the mountd and nfsd commands. This can be done using the
1082 mountd_flags and nfs_server_flags rc.conf variables until an
1083 update to the rc scripts is committed, which is coming soon.
1086 The GNU Objective-C runtime library (libobjc), and other Objective-C
1087 related components have been removed from the base system. If you
1088 require an Objective-C library, please use one of the available ports.
1091 ath(4) has been split into bus- and device- modules. if_ath contains
1092 the HAL, the TX rate control and the network device code. if_ath_pci
1093 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb
1094 contains the AHB glue. Users need to load both if_ath_pci and if_ath
1095 in order to use ath on everything else.
1097 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only
1098 need to load if_ath and if_ath_pci for ath(4) operation.
1101 As part of the replacement of sysinstall, the process of building
1102 release media has changed significantly. For details, please re-read
1103 release(7), which has been updated to reflect the new build process.
1106 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This
1107 is the last available version under GPLv2. It brings a number of new
1108 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE
1109 4.1 and SSE 4.2), better support for powerpc64, a number of new
1110 directives, and lots of other small improvements. See the ChangeLog
1111 file in contrib/binutils for the full details.
1114 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868
1115 compliant, and will now use half of hash for authentication.
1116 This will break interoperability with all stacks (including all
1117 actual FreeBSD versions) who implement
1118 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for
1120 The only workaround with such peers is to use another HMAC
1121 algorithm for IPsec ("phase 2") authentication.
1124 Remove the uio_yield prototype and symbol. This function has
1125 been misnamed since it was introduced and should not be
1126 globally exposed with this name. The equivalent functionality
1127 is now available using kern_yield(curthread->td_user_pri).
1128 The function remains undocumented.
1131 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers,
1132 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking
1133 for scalar sysctls is defined but disabled. Code that needs
1134 UQUAD to pass the type checking that must compile on older
1135 systems where the define is not present can check against
1136 __FreeBSD_version >= 900030.
1138 The system dialog(1) has been replaced with a new version previously
1139 in ports as devel/cdialog. dialog(1) is mostly command-line compatible
1140 with the previous version, but the libdialog associated with it has
1141 a largely incompatible API. As such, the original version of libdialog
1142 will be kept temporarily as libodialog, until its base system consumers
1143 are replaced or updated. Bump __FreeBSD_version to 900030.
1146 If you are trying to run make universe on a -stable system, and you get
1147 the following warning:
1148 "Makefile", line 356: "Target architecture for i386/conf/GENERIC
1149 unknown. config(8) likely too old."
1150 or something similar to it, then you must upgrade your -stable system
1151 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in
1152 stable/8) or build the config from the latest stable/8 branch and
1153 install it on your system.
1155 Prior to this date, building a current universe on 8-stable system from
1156 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing
1157 error in the first kernel build phase. A new config on those old
1158 systems will fix that problem for older versions of -current.
1161 The TCP stack has been modified to allow Khelp modules to interact with
1162 it via helper hook points and store per-connection data in the TCP
1163 control block. Bump __FreeBSD_version to 900029. User space tools that
1164 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to
1168 Generic IEEE 802.3 annex 31B full duplex flow control support has been
1169 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along
1170 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted
1171 to take advantage of it instead of using custom implementations. This
1172 means that these drivers now no longer unconditionally advertise
1173 support for flow control but only do so if flow control is a selected
1174 media option. This was implemented in the generic support that way in
1175 order to allow flow control to be switched on and off via ifconfig(8)
1176 with the PHY specific default to typically off in order to protect
1177 from unwanted effects. Consequently, if you used flow control with
1178 one of the above mentioned drivers you now need to explicitly enable
1179 it, for example via:
1180 ifconfig bge0 media auto mediaopt flowcontrol
1182 Along with the above mentioned changes generic support for setting
1183 1000baseT master mode also has been added and brgphy(4), ciphy(4),
1184 e1000phy(4) as well as ip1000phy(4) have been converted to take
1185 advantage of it. This means that these drivers now no longer take the
1186 link0 parameter for selecting master mode but the master media option
1187 has to be used instead, for example like in the following:
1188 ifconfig bge0 media 1000baseT mediaopt full-duplex,master
1190 Selection of master mode now is also available with all other PHY
1191 drivers supporting 1000baseT.
1194 The TCP stack has received a significant update to add support for
1195 modularised congestion control and generally improve the clarity of
1196 congestion control decisions. Bump __FreeBSD_version to 900025. User
1197 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g.
1198 sockstat) need to be recompiled.
1201 The man(1) utility has been replaced by a new version that no longer
1202 uses /etc/manpath.config. Please consult man.conf(5) for how to
1203 migrate local entries to the new format.
1206 The copyright strings printed by login(1) and sshd(8) at the time of a
1207 new connection have been removed to follow other operating systems and
1211 A workaround for a fixed ld bug has been removed in kernel code,
1212 so make sure that your system ld is built from sources after
1213 revision 210245 from 2010-07-19 (r211583 if building head kernel
1214 on stable/8, r211584 for stable/7; both from 2010-08-21).
1215 A symptom of incorrect ld version is different addresses for
1216 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules.
1219 The $ipv6_prefer variable in rc.conf(5) has been split into
1220 $ip6addrctl_policy and $ipv6_activate_all_interfaces.
1222 The $ip6addrctl_policy is a variable to choose a pre-defined
1223 address selection policy set by ip6addrctl(8). A value
1224 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The
1227 The $ipv6_activate_all_interfaces specifies whether IFDISABLED
1228 flag (see an entry of 20090926) is set on an interface with no
1229 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for
1230 security reason. If you want IPv6 link-local address on all
1231 interfaces by default, set this to "YES".
1233 The old ipv6_prefer="YES" is equivalent to
1234 ipv6_activate_all_interfaces="YES" and
1235 ip6addrctl_policy="ipv6_prefer".
1238 DTrace has grown support for userland tracing. Due to this, DTrace is
1239 now i386 and amd64 only.
1240 dtruss(1) is now installed by default on those systems and a new
1241 kernel module is needed for userland tracing: fasttrap.
1242 No changes to your kernel config file are necessary to enable
1243 userland tracing, but you might consider adding 'STRIP=' and
1244 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want
1245 to have informative userland stack traces in DTrace (ustack).
1248 The acpi_aiboost(4) driver has been removed in favor of the new
1249 aibs(4) driver. You should update your kernel configuration file.
1252 BSD grep has been imported to the base system and it is built by
1253 default. It is completely BSD licensed, highly GNU-compatible, uses
1254 less memory than its GNU counterpart and has a small codebase.
1255 However, it is slower than its GNU counterpart, which is mostly
1256 noticeable for larger searches, for smaller ones it is measurable
1257 but not significant. The reason is complex, the most important factor
1258 is that we lack a modern and efficient regex library and GNU
1259 overcomes this by optimizing the searches internally. Future work
1260 on improving the regex performance is planned, for the meantime,
1261 users that need better performance, can build GNU grep instead by
1262 setting the WITH_GNU_GREP knob.
1265 Due to the import of powerpc64 support, all existing powerpc kernel
1266 configuration files must be updated with a machine directive like this:
1267 machine powerpc powerpc
1269 In addition, an updated config(8) is required to build powerpc kernels
1273 A new version of ZFS (version 15) has been merged to -HEAD.
1274 This version uses a python library for the following subcommands:
1275 zfs allow, zfs unallow, zfs groupspace, zfs userspace.
1276 For full functionality of these commands the following port must
1277 be installed: sysutils/py-zfs
1280 'vm_page's are now hashed by physical address to an array of mutexes.
1281 Currently this is only used to serialize access to hold_count. Over
1282 time the page queue mutex will be peeled away. This changes the size
1283 of pmap on every architecture. And requires all callers of vm_page_hold
1284 and vm_page_unhold to be updated.
1287 WITH_CTF can now be specified in src.conf (not recommended, there
1288 are some problems with static executables), make.conf (would also
1289 affect ports which do not use GNU make and do not override the
1290 compile targets) or in the kernel config (via "makeoptions
1292 When WITH_CTF was specified there before this was silently ignored,
1293 so make sure that WITH_CTF is not used in places which could lead
1294 to unwanted behavior.
1297 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
1298 to allow 32-bit compatibility on non-x86 platforms. All kernel
1299 configurations on amd64 and ia64 platforms using these options must
1300 be modified accordingly.
1303 The utmp user accounting database has been replaced with utmpx,
1304 the user accounting interface standardized by POSIX.
1305 Unfortunately the semantics of utmp and utmpx don't match,
1306 making it practically impossible to support both interfaces.
1307 The user accounting database is used by tools like finger(1),
1308 last(1), talk(1), w(1) and ac(8).
1310 All applications in the base system use utmpx. This means only
1311 local binaries (e.g. from the ports tree) may still use these
1312 utmp database files. These applications must be rebuilt to make
1315 After the system has been upgraded, it is safe to remove the old
1316 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*),
1317 assuming their contents is of no importance anymore. Old wtmp
1318 databases can only be used by last(1) and ac(8) after they have
1319 been converted to the new format using wtmpcvt(1).
1322 Introduce the kernel thread "deadlock resolver" (which can be enabled
1323 via the DEADLKRES option, see NOTES for more details) and the
1324 sleepq_type() function for sleepqueues.
1327 The rc.firewall and rc.firewall6 were unified, and
1328 rc.firewall6 and rc.d/ip6fw were removed.
1329 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
1330 variables are obsoleted. Instead, the following new rc
1331 variables are added to rc.d/ipfw:
1333 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
1334 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
1335 firewall_simple_onet_ipv6, firewall_trusted_ipv6
1337 The meanings correspond to the relevant IPv4 variables.
1343 The default terminal emulation for syscons(4) has been changed
1344 from cons25 to xterm on all platforms except pc98. This means
1345 that the /etc/ttys file needs to be updated to ensure correct
1346 operation of applications on the console.
1348 The terminal emulation style can be toggled per window by using
1349 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration
1350 options can be used to change the compile-time default back to
1353 To prevent graphical artifacts, make sure the TERM environment
1354 variable is set to match the terminal emulation that is being
1355 performed by syscons(4).
1358 The layout of the structure ieee80211req_scan_result has changed.
1359 Applications that require wireless scan results (e.g. ifconfig(8))
1360 from net80211 need to be recompiled.
1362 Applications such as wpa_supplicant(8) may require a full world
1363 build without using NO_CLEAN in order to get synchronized with the
1367 The iwn(4) driver has been updated to support the 5000 and 5150 series.
1368 There's one kernel module for each firmware. Adding "device iwnfw"
1369 to the kernel configuration file means including all three firmware
1370 images inside the kernel. If you want to include just the one for
1371 your wireless card, use the devices iwn4965fw, iwn5000fw or
1375 The rc.d/network_ipv6, IPv6 configuration script has been integrated
1376 into rc.d/netif. The changes are the following:
1378 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF
1379 for IPv4. For aliases, $ifconfig_IF_aliasN should be used.
1380 Note that both variables need the "inet6" keyword at the head.
1382 Do not set $ipv6_network_interfaces manually if you do not
1383 understand what you are doing. It is not needed in most cases.
1385 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but
1388 2. $ipv6_enable is obsolete. Use $ipv6_prefer and
1389 "inet6 accept_rtadv" keyword in ifconfig(8) instead.
1391 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and
1392 all configured interfaces have "inet6 accept_rtadv" in the
1393 $ifconfig_IF_ipv6. These are for backward compatibility.
1395 3. A new variable $ipv6_prefer has been added. If NO, IPv6
1396 functionality of interfaces with no corresponding
1397 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag,
1398 and the default address selection policy of ip6addrctl(8)
1399 is the IPv4-preferred one (see rc.d/ip6addrctl for more details).
1400 Note that if you want to configure IPv6 functionality on the
1401 disabled interfaces after boot, first you need to clear the flag by
1402 using ifconfig(8) like:
1404 ifconfig em0 inet6 -ifdisabled
1406 If YES, the default address selection policy is set as
1409 The default value of $ipv6_prefer is NO.
1411 4. If your system need to receive Router Advertisement messages,
1412 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8)
1413 scripts automatically invoke rtsol(8) when the interface becomes
1414 UP. The Router Advertisement messages are used for SLAAC
1415 (State-Less Address AutoConfiguration).
1418 802.11s D3.03 support was committed. This is incompatible with the
1419 previous code, which was based on D3.0.
1422 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value
1423 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to
1424 control whether accepting Router Advertisement messages or not.
1425 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and
1426 a sysctl variable net.inet6.ip6.auto_linklocal is its default value.
1427 The ifconfig(8) utility now supports these flags.
1430 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
1431 mount(8) and -a option for df(1) to see them.
1434 The old tunable hw.bus.devctl_disable has been superseded by
1435 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be
1436 replaced by hw.bus.devctl_queue=0. The default for this new tunable
1440 Remove the option STOP_NMI. The default action is now to use NMI only
1441 for KDB via the newly introduced function stop_cpus_hard() and
1442 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64.
1445 The stable/8 branch created in subversion. This corresponds to the
1446 RELENG_8 branch in CVS.
1449 Bump the shared library version numbers for all libraries that do not
1450 use symbol versioning as part of the 8.0-RELEASE cycle. Bump
1451 __FreeBSD_version to 800105.
1454 Due to changes in the implementation of virtual network stack support,
1455 all network-related kernel modules must be recompiled. As this change
1456 breaks the ABI, bump __FreeBSD_version to 800104.
1459 The TOE interface to the TCP syncache has been modified to remove
1460 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack.
1461 The cxgb driver is the only TOE consumer affected by this change, and
1462 needs to be recompiled along with the kernel. As this change breaks
1463 the ABI, bump __FreeBSD_version to 800103.
1466 Padding has been added to struct tcpcb, sackhint and tcpstat in
1467 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
1468 maintaining the ABI. However, this change breaks the ABI, so bump
1469 __FreeBSD_version to 800102. User space tools that rely on the size of
1470 any of these structs (e.g. sockstat) need to be recompiled.
1473 The NFS_LEGACYRPC option has been removed along with the old kernel
1474 RPC implementation that this option selected. Kernel configurations
1475 may need to be adjusted.
1478 The network interface device nodes at /dev/net/<interface> have been
1479 removed. All ioctl operations can be performed the normal way using
1480 routing sockets. The kqueue functionality can generally be replaced
1481 with routing sockets.
1484 The documentation from the FreeBSD Documentation Project (Handbook,
1485 FAQ, etc.) is now installed via packages by sysinstall(8) and under
1486 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc.
1489 The ABI of various structures related to the SYSV IPC API have been
1490 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel
1491 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to
1495 Layout of struct vnet has changed as routing related variables were
1496 moved to their own Vimage module. Modules need to be recompiled. Bump
1497 __FreeBSD_version to 800099.
1500 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024
1501 respectively. As long as no more than 16 groups per process are used,
1502 no changes should be visible. When more than 16 groups are used, old
1503 binaries may fail if they call getgroups() or getgrouplist() with
1504 statically sized storage. Recompiling will work around this, but
1505 applications should be modified to use dynamically allocated storage
1506 for group arrays as POSIX.1-2008 does not cap an implementation's
1507 number of supported groups at NGROUPS_MAX+1 as previous versions did.
1509 NFS and portalfs mounts may also be affected as the list of groups is
1510 truncated to 16. Users of NFS who use more than 16 groups, should
1511 take care that negative group permissions are not used on the exported
1512 file systems as they will not be reliable unless a GSSAPI based
1513 authentication method is used.
1516 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This
1517 option compiles in the support for adaptive spinning for lockmgrs
1518 which want to enable it. The lockinit() function now accepts the flag
1519 LK_ADAPTIVE in order to make the lock object subject to adaptive
1520 spinning when both held in write and read mode.
1523 The layout of the structure returned by IEEE80211_IOC_STA_INFO has
1524 changed. User applications that use this ioctl need to be rebuilt.
1527 The layout of struct thread has changed. Kernel and modules need to
1531 The layout of structs ifnet, domain, protosw and vnet_net has changed.
1532 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097.
1535 window(1) has been removed from the base system. It can now be
1536 installed from ports. The port is called misc/window.
1539 The way we are storing and accessing `routing table' entries has
1540 changed. Programs reading the FIB, like netstat, need to be
1544 A new netisr implementation has been added for FreeBSD 8. Network
1545 file system modules, such as igmp, ipdivert, and others, should be
1547 Bump __FreeBSD_version to 800096.
1550 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no
1554 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
1555 Bump __FreeBSD_version to 800094.
1558 Add mnt_xflag field to 'struct mount'. File system modules need to be
1560 Bump __FreeBSD_version to 800093.
1563 The compiling option ADAPTIVE_SX has been retired while it has been
1564 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
1565 The KPI for sx_init_flags() changes as accepting flags:
1566 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has
1567 been introduced in order to handle the reversed logic.
1568 Bump __FreeBSD_version to 800092.
1571 Add support for hierarchical jails. Remove global securelevel.
1572 Bump __FreeBSD_version to 800091.
1575 The layout of struct vnet_net has changed, therefore modules
1577 Bump __FreeBSD_version to 800090.
1580 The newly imported zic(8) produces a new format in the output. Please
1581 run tzsetup(8) to install the newly created data to /etc/localtime.
1584 The sysctl tree for the usb stack has renamed from hw.usb2.* to
1585 hw.usb.* and is now consistent again with previous releases.
1588 802.11 monitor mode support was revised and driver api's were changed.
1589 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead
1590 of DLT_IEEE802_11. No user-visible data structures were changed but
1591 applications that use DLT_IEEE802_11 may require changes.
1592 Bump __FreeBSD_version to 800088.
1595 The layout of the following structs has changed: sysctl_oid,
1596 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
1597 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
1598 panics may be experienced. World rebuild is required for
1599 correctly checking networking state from userland.
1600 Bump __FreeBSD_version to 800085.
1603 MLDv2 and Source-Specific Multicast (SSM) have been merged
1604 to the IPv6 stack. VIMAGE hooks are in but not yet used.
1605 The implementation of SSM within FreeBSD's IPv6 stack closely
1606 follows the IPv4 implementation.
1608 For kernel developers:
1610 * The most important changes are that the ip6_output() and
1611 ip6_input() paths no longer take the IN6_MULTI_LOCK,
1612 and this lock has been downgraded to a non-recursive mutex.
1614 * As with the changes to the IPv4 stack to support SSM, filtering
1615 of inbound multicast traffic must now be performed by transport
1616 protocols within the IPv6 stack. This does not apply to TCP and
1617 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
1619 * The KPIs used by IPv6 multicast are similar to those used by
1620 the IPv4 stack, with the following differences:
1621 * im6o_mc_filter() is analogous to imo_multicast_filter().
1622 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
1623 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
1624 * IN6_LOOKUP_MULTI() has been deprecated and removed.
1625 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
1626 for MLDv1 have an additional 'timer' argument which is used to
1627 jitter the initial membership report for the solicited-node
1628 multicast membership on-link.
1629 * This is not strictly needed for MLDv2, which already jitters
1630 its report transmissions. However, the 'timer' argument is
1631 preserved in case MLDv1 is active on the interface.
1633 * The KAME linked-list based IPv6 membership implementation has
1634 been refactored to use a vector similar to that used by the IPv4
1636 Code which maintains a list of its own multicast memberships
1637 internally, e.g. carp, has been updated to reflect the new
1640 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
1641 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
1642 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
1643 implementation constraint which needs to be addressed in HEAD.
1645 For application developers:
1647 * The changes are broadly similar to those made for the IPv4
1650 * The use of IPv4 and IPv6 multicast socket options on the same
1651 socket, using mapped addresses, HAS NOT been tested or supported.
1653 * There are a number of issues with the implementation of various
1654 IPv6 multicast APIs which need to be resolved in the API surface
1655 before the implementation is fully compatible with KAME userland
1656 use, and these are mostly to do with interface index treatment.
1658 * The literature available discusses the use of either the delta / ASM
1659 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
1660 using setsourcefilter(3)/getsourcefilter(3). For more information
1661 please refer to RFC 3768, 'Socket Interface Extensions for
1662 Multicast Source Filters'.
1664 * Applications which use the published RFC 3678 APIs should be fine.
1666 For systems administrators:
1668 * The mtest(8) utility has been refactored to support IPv6, in
1669 addition to IPv4. Interface addresses are no longer accepted
1670 as arguments, their names must be used instead. The utility
1671 will map the interface name to its first IPv4 address as
1672 returned by getifaddrs(3).
1674 * The ifmcstat(8) utility has also been updated to print the MLDv2
1675 endpoint state and source filter lists via sysctl(3).
1677 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
1678 loopback of IPv6 multicast datagrams by default; it defaults to 1
1679 to preserve the existing behaviour. Disabling multicast loopback is
1680 recommended for optimal system performance.
1682 * The IPv6 MROUTING code has been changed to examine this sysctl
1683 instead of attempting to perform a group lookup before looping
1684 back forwarded datagrams.
1686 Bump __FreeBSD_version to 800084.
1689 Implement low-level Bluetooth HCI API.
1690 Bump __FreeBSD_version to 800083.
1693 The layout of struct malloc_type, used by modules to register new
1694 memory allocation types, has changed. Most modules will need to
1695 be rebuilt or panics may be experienced.
1696 Bump __FreeBSD_version to 800081.
1699 Anticipate overflowing inp_flags - add inp_flags2.
1700 This changes most offsets in inpcb, so checking v4 connection
1701 state will require a world rebuild.
1702 Bump __FreeBSD_version to 800080.
1705 Add an llentry to struct route and struct route_in6. Modules
1706 embedding a struct route will need to be recompiled.
1707 Bump __FreeBSD_version to 800079.
1710 The size of rt_metrics_lite and by extension rtentry has changed.
1711 Networking administration apps will need to be recompiled.
1712 The route command now supports show as an alias for get, weighting
1713 of routes, sticky and nostick flags to alter the behavior of stateful
1715 Bump __FreeBSD_version to 800078.
1718 Do not use Giant for kbdmux(4) locking. This is wrong and
1719 apparently causing more problems than it solves. This will
1720 re-open the issue where interrupt handlers may race with
1721 kbdmux(4) in polling mode. Typical symptoms include (but
1722 not limited to) duplicated and/or missing characters when
1723 low level console functions (such as gets) are used while
1724 interrupts are enabled (for example geli password prompt,
1725 mountroot prompt etc.). Disabling kbdmux(4) may help.
1728 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
1729 kernel modules referencing any of the above need to be recompiled.
1730 Bump __FreeBSD_version to 800075.
1733 GEOM_PART has become the default partition slicer for storage devices,
1734 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
1735 introduces some changes:
1737 MSDOS/EBR: the devices created from MSDOS extended partition entries
1738 (EBR) can be named differently than with GEOM_MBR and are now symlinks
1739 to devices with offset-based names. fstabs may need to be modified.
1741 BSD: the "geometry does not match label" warning is harmless in most
1742 cases but it points to problems in file system misalignment with
1743 disk geometry. The "c" partition is now implicit, covers the whole
1744 top-level drive and cannot be (mis)used by users.
1746 General: Kernel dumps are now not allowed to be written to devices
1747 whose partition types indicate they are meant to be used for file
1748 systems (or, in case of MSDOS partitions, as something else than
1751 Most of these changes date approximately from 200812.
1754 The uscanner(4) driver has been removed from the kernel. This follows
1755 Linux removing theirs in 2.6 and making libusb the default interface
1756 (supported by sane).
1759 The multicast forwarding code has been cleaned up. netstat(1)
1760 only relies on KVM now for printing bandwidth upcall meters.
1761 The IPv4 and IPv6 modules are split into ip_mroute_mod and
1762 ip6_mroute_mod respectively. The config(5) options for statically
1763 compiling this code remain the same, i.e. 'options MROUTING'.
1766 Support for the IFF_NEEDSGIANT network interface flag has been
1767 removed, which means that non-MPSAFE network device drivers are no
1768 longer supported. In particular, if_ar, if_sr, and network device
1769 drivers from the old (legacy) USB stack can no longer be built or
1773 POSIX.1 Native Language Support (NLS) has been enabled in libc and
1774 a bunch of new language catalog files have also been added.
1775 This means that some common libc messages are now localized and
1776 they depend on the LC_MESSAGES environmental variable.
1779 The k8temp(4) driver has been renamed to amdtemp(4) since
1780 support for Family 10 and Family 11 CPU families was added.
1783 IGMPv3 and Source-Specific Multicast (SSM) have been merged
1784 to the IPv4 stack. VIMAGE hooks are in but not yet used.
1786 For kernel developers, the most important changes are that the
1787 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
1788 and this lock has been downgraded to a non-recursive mutex.
1790 Transport protocols (UDP, Raw IP) are now responsible for filtering
1791 inbound multicast traffic according to group membership and source
1792 filters. The imo_multicast_filter() KPI exists for this purpose.
1793 Transports which do not use multicast (SCTP, TCP) already reject
1794 multicast by default. Forwarding and receive performance may improve
1795 as a mutex acquisition is no longer needed in the ip_input()
1796 low-level input path. in_addmulti() and in_delmulti() are shimmed
1797 to new KPIs which exist to support SSM in-kernel.
1799 For application developers, it is recommended that loopback of
1800 multicast datagrams be disabled for best performance, as this
1801 will still cause the lock to be taken for each looped-back
1802 datagram transmission. The net.inet.ip.mcast.loop sysctl may
1803 be tuned to 0 to disable loopback by default; it defaults to 1
1804 to preserve the existing behaviour.
1806 For systems administrators, to obtain best performance with
1807 multicast reception and multiple groups, it is always recommended
1808 that a card with a suitably precise hash filter is used. Hash
1809 collisions will still result in the lock being taken within the
1810 transport protocol input path to check group membership.
1812 If deploying FreeBSD in an environment with IGMP snooping switches,
1813 it is recommended that the net.inet.igmp.sendlocal sysctl remain
1814 enabled; this forces 224.0.0.0/24 group membership to be announced
1817 The size of 'struct igmpstat' has changed; netstat needs to be
1818 recompiled to reflect this.
1819 Bump __FreeBSD_version to 800070.
1822 libusb20.so.1 is now installed as libusb.so.1 and the ports system
1823 updated to use it. This requires a buildworld/installworld in order to
1824 update the library and dependencies (usbconfig, etc). Its advisable to
1825 rebuild all ports which uses libusb. More specific directions are given
1826 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
1827 libusb are no longer required and can be removed.
1830 A workaround is committed to allow the creation of System V shared
1831 memory segment of size > 2 GB on the 64-bit architectures.
1832 Due to a limitation of the existing ABI, the shm_segsz member
1833 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
1834 wrong for large segments. Note that limits must be explicitly
1835 raised to allow such segments to be created.
1838 The layout of struct ifnet has changed, requiring a rebuild of all
1839 network device driver modules.
1842 The /dev handling for the new USB stack has changed, a
1843 buildworld/installworld is required for libusb20.
1846 The new USB2 stack has now been permanently moved in and all kernel and
1847 module names reverted to their previous values (eg, usb, ehci, ohci,
1848 ums, ...). The old usb stack can be compiled in by prefixing the name
1849 with the letter 'o', the old usb modules have been removed.
1850 Updating entry 20090216 for xorg and 20090215 for libmap may still
1854 The rc.conf(5) option if_up_delay has been renamed to
1855 defaultroute_delay to better reflect its purpose. If you have
1856 customized this setting in /etc/rc.conf you need to update it to
1860 xorg 7.4 wants to configure its input devices via hald which does not
1861 yet work with USB2. If the keyboard/mouse does not work in xorg then
1863 Option "AllowEmptyInput" "off"
1864 to your ServerLayout section. This will cause X to use the configured
1865 kbd and mouse sections from your xorg.conf.
1868 The GENERIC kernels for all architectures now default to the new USB2
1869 stack. No kernel config options or code have been removed so if a
1870 problem arises please report it and optionally revert to the old USB
1871 stack. If you are loading USB kernel modules or have a custom kernel
1872 that includes GENERIC then ensure that usb names are also changed over,
1873 eg uftdi -> usb2_serial_ftdi.
1875 Older programs linked against the ports libusb 0.1 need to be
1876 redirected to the new stack's libusb20. /etc/libmap.conf can
1878 # Map old usb library to new one for usb2 stack
1879 libusb-0.1.so.8 libusb20.so.1
1882 All USB ethernet devices now attach as interfaces under the name ueN
1883 (eg. ue0). This is to provide a predictable name as vendors often
1884 change usb chipsets in a product without notice.
1887 The ichsmb(4) driver has been changed to require SMBus slave
1888 addresses be left-justified (xxxxxxx0b) rather than right-justified.
1889 All of the other SMBus controller drivers require left-justified
1890 slave addresses, so this change makes all the drivers provide the
1894 INET6 statistics (struct ip6stat) was updated.
1895 netstat(1) needs to be recompiled.
1898 NTFS has been removed from GENERIC kernel on amd64 to match
1899 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
1900 will load ntfs.ko module automatically when NTFS support is
1901 actually needed, unless ntfs.ko is not installed or security
1902 level prohibits loading kernel modules. If either is the case,
1903 "options NTFS" has to be added into kernel config.
1906 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
1907 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
1908 800061. User space tools that rely on the size of struct tcpcb in
1909 tcp_var.h (e.g. sockstat) need to be recompiled.
1912 ng_tty(4) module updated to match the new TTY subsystem.
1913 Due to API change, user-level applications must be updated.
1914 New API support added to mpd5 CVS and expected to be present
1915 in next mpd5.3 release.
1918 With __FreeBSD_version 800060 the makefs tool is part of
1919 the base system (it was a port).
1922 The afdata and ifnet locks have been changed from mutexes to
1923 rwlocks, network modules will need to be re-compiled.
1926 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
1927 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
1928 The new code reduced struct rtentry{} by 16 bytes on 32-bit
1929 architecture and 40 bytes on 64-bit architecture. The userland
1930 applications "arp" and "ndp" have been updated accordingly.
1931 The output from "netstat -r" shows only routing entries and
1932 none of the L2 information.
1935 __FreeBSD_version 800057 marks the switchover from the
1936 binary ath hal to source code. Users must add the line:
1938 options AH_SUPPORT_AR5416
1940 to their kernel config files when specifying:
1944 The ath_hal module no longer exists; the code is now compiled
1945 together with the driver in the ath module. It is now
1946 possible to tailor chip support (i.e. reduce the set of chips
1947 and thereby the code size); consult ath_hal(4) for details.
1950 __FreeBSD_version 800054 adds memory barriers to
1951 <machine/atomic.h>, new interfaces to ifnet to facilitate
1952 multiple hardware transmit queues for cards that support
1953 them, and a lock-less ring-buffer implementation to
1954 enable drivers to more efficiently manage queueing of
1958 A new version of ZFS (version 13) has been merged to -HEAD.
1959 This version has zpool attribute "listsnapshots" off by
1960 default, which means "zfs list" does not show snapshots,
1961 and is the same as Solaris behavior.
1964 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
1967 The uhci, ohci, ehci and slhci USB Host controller drivers have
1968 been put into separate modules. If you load the usb module
1969 separately through loader.conf you will need to load the
1970 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
1971 controller add the following to loader.conf:
1977 The ABI used by the PMC toolset has changed. Please keep
1978 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
1982 atapci kernel module now includes only generic PCI ATA
1983 driver. AHCI driver moved to ataahci kernel module.
1984 All vendor-specific code moved into separate kernel modules:
1985 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
1986 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
1987 atamarvell, atamicron, atanational, atanetcell, atanvidia,
1988 atapromise, ataserverworks, atasiliconimage, atasis, atavia
1991 The TTY subsystem of the kernel has been replaced by a new
1992 implementation, which provides better scalability and an
1993 improved driver model. Most common drivers have been migrated to
1994 the new TTY subsystem, while others have not. The following
1995 drivers have not yet been ported to the new TTY layer:
1998 cy, digi, rc, rp, sio
2004 ng_h4, ng_tty, ppp, sl, snp
2006 Adding these drivers to your kernel configuration file shall
2007 cause compilation to fail.
2010 ntpd has been upgraded to 4.2.4p5.
2013 OpenSSH has been upgraded to 5.1p1.
2015 For many years, FreeBSD's version of OpenSSH preferred DSA
2016 over RSA for host and user authentication keys. With this
2017 upgrade, we've switched to the vendor's default of RSA over
2018 DSA. This may cause upgraded clients to warn about unknown
2019 host keys even for previously known hosts. Users should
2020 follow the usual procedure for verifying host keys before
2021 accepting the RSA key.
2023 This can be circumvented by setting the "HostKeyAlgorithms"
2024 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
2027 Please note that the sequence of keys offered for
2028 authentication has been changed as well. You may want to
2029 specify IdentityFile in a different order to revert this
2033 The sio(4) driver has been removed from the i386 and amd64
2034 kernel configuration files. This means uart(4) is now the
2035 default serial port driver on those platforms as well.
2037 To prevent collisions with the sio(4) driver, the uart(4) driver
2038 uses different names for its device nodes. This means the
2039 onboard serial port will now most likely be called "ttyu0"
2040 instead of "ttyd0". You may need to reconfigure applications to
2041 use the new device names.
2043 When using the serial port as a boot console, be sure to update
2044 /boot/device.hints and /etc/ttys before booting the new kernel.
2045 If you forget to do so, you can still manually specify the hints
2046 at the loader prompt:
2048 set hint.uart.0.at="isa"
2049 set hint.uart.0.port="0x3F8"
2050 set hint.uart.0.flags="0x10"
2051 set hint.uart.0.irq="4"
2055 The gpt(8) utility has been removed. Use gpart(8) to partition
2059 The version that Linuxulator emulates was changed from 2.4.2
2060 to 2.6.16. If you experience any problems with Linux binaries
2061 please try to set sysctl compat.linux.osrelease to 2.4.2 and
2062 if it fixes the problem contact emulation mailing list.
2065 ISDN4BSD (I4B) was removed from the src tree. You may need to
2066 update a your kernel configuration and remove relevant entries.
2069 I have checked in code to support multiple routing tables.
2070 See the man pages setfib(1) and setfib(2).
2071 This is a hopefully backwards compatible version,
2072 but to make use of it you need to compile your kernel
2073 with options ROUTETABLES=2 (or more up to 16).
2076 The 802.11 wireless support was redone to enable multi-bss
2077 operation on devices that are capable. The underlying device
2078 is no longer used directly but instead wlanX devices are
2079 cloned with ifconfig. This requires changes to rc.conf files.
2080 For example, change:
2081 ifconfig_ath0="WPA DHCP"
2084 ifconfig_wlan0="WPA DHCP"
2085 see rc.conf(5) for more details. In addition, mergemaster of
2086 /etc/rc.d is highly recommended. Simultaneous update of userland
2087 and kernel wouldn't hurt either.
2089 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
2090 modules were merged into the base wlan module. All references
2091 to these modules (e.g. in kernel config files) must be removed.
2094 psm(4) has gained write(2) support in native operation level.
2095 Arbitrary commands can be written to /dev/psm%d and status can
2096 be read back from it. Therefore, an application is responsible
2097 for status validation and error recovery. It is a no-op in
2098 other operation levels.
2101 Support for KSE threading has been removed from the kernel. To
2102 run legacy applications linked against KSE libmap.conf may
2103 be used. The following libmap.conf may be used to ensure
2104 compatibility with any prior release:
2106 libpthread.so.1 libthr.so.1
2107 libpthread.so.2 libthr.so.2
2108 libkse.so.3 libthr.so.3
2111 The layout of struct vmspace has changed. This affects libkvm
2112 and any executables that link against libkvm and use the
2113 kvm_getprocs() function. In particular, but not exclusively,
2114 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
2115 The effects are minimal, but it's advisable to upgrade world
2119 The latest em driver no longer has support in it for the
2120 82575 adapter, this is now moved to the igb driver. The
2121 split was done to make new features that are incompatible
2122 with older hardware easier to do.
2125 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
2126 likewise the kernel option is now GEOM_LINUX_LVM.
2129 The default NFS mount mode has changed from UDP to TCP for
2130 increased reliability. If you rely on (insecurely) NFS
2131 mounting across a firewall you may need to update your
2135 Belatedly note the addition of m_collapse for compacting
2139 The fts(3) structures have been changed to use adequate
2140 integer types for their members and so to be able to cope
2141 with huge file trees. The old fts(3) ABI is preserved
2142 through symbol versioning in libc, so third-party binaries
2143 using fts(3) should still work, although they will not take
2144 advantage of the extended types. At the same time, some
2145 third-party software might fail to build after this change
2146 due to unportable assumptions made in its source code about
2147 fts(3) structure members. Such software should be fixed
2148 by its vendor or, in the worst case, in the ports tree.
2149 FreeBSD_version 800015 marks this change for the unlikely
2150 case that a portable fix is impossible.
2153 To upgrade to -current after this date, you must be running
2154 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
2155 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
2158 The ADAPTIVE_GIANT kernel option has been retired because its
2159 functionality is the default now.
2162 The AT keyboard emulation of sunkbd(4) has been turned on
2163 by default. In order to make the special symbols of the Sun
2164 keyboards driven by sunkbd(4) work under X these now have
2165 to be configured the same way as Sun USB keyboards driven
2166 by ukbd(4) (which also does AT keyboard emulation), f.e.:
2168 Option "XkbLayout" "us"
2169 Option "XkbRules" "xorg"
2170 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
2173 It has been decided that it is desirable to provide ABI
2174 backwards compatibility to the FreeBSD 4/5/6 versions of the
2175 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
2176 broken with the introduction of PCI domain support (see the
2177 20070930 entry). Unfortunately, this required the ABI of
2178 PCIOCGETCONF to be broken again in order to be able to
2179 provide backwards compatibility to the old version of that
2180 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
2181 again. As for prominent ports this affects neither pciutils
2182 nor xorg-server this time, the hal port needs to be rebuilt
2186 The misnamed kthread_create() and friends have been renamed
2187 to kproc_create() etc. Many of the callers already
2188 used kproc_start()..
2189 I will return kthread_create() and friends in a while
2190 with implementations that actually create threads, not procs.
2191 Renaming corresponds with version 800002.
2200 Avoid using make -j when upgrading. While generally safe, there are
2201 sometimes problems using -j to upgrade. If your upgrade fails with
2202 -j, please try again without -j. From time to time in the past there
2203 have been problems using -j with buildworld and/or installworld. This
2204 is especially true when upgrading between "distant" versions (eg one
2205 that cross a major release boundary or several minor releases, or when
2206 several months have passed on the -current branch).
2208 Sometimes, obscure build problems are the result of environment
2209 poisoning. This can happen because the make utility reads its
2210 environment when searching for values for global variables. To run
2211 your build attempts in an "environmental clean room", prefix all make
2212 commands with 'env -i '. See the env(1) manual page for more details.
2214 When upgrading from one major version to another it is generally best
2215 to upgrade to the latest code in the currently installed branch first,
2216 then do an upgrade to the new branch. This is the best-tested upgrade
2217 path, and has the highest probability of being successful. Please try
2218 this approach before reporting problems with a major version upgrade.
2220 When upgrading a live system, having a root shell around before
2221 installing anything can help undo problems. Not having a root shell
2222 around can lead to problems if pam has changed too much from your
2223 starting point to allow continued authentication after the upgrade.
2227 When upgrading the boot ZFS pool to a new version, always follow
2230 1.) recompile and reinstall the ZFS boot loader and boot block
2231 (this is part of "make buildworld" and "make installworld")
2233 2.) update the ZFS boot block on your boot drive
2235 The following example updates the ZFS boot block on the first
2236 partition (freebsd-boot) of a GPT partitioned drive ad0:
2237 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
2239 Non-boot pools do not need these updates.
2243 If you are updating from a prior version of FreeBSD (even one just
2244 a few days old), you should follow this procedure. It is the most
2245 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
2247 make kernel-toolchain
2248 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
2249 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
2251 To test a kernel once
2252 ---------------------
2253 If you just want to boot a kernel once (because you are not sure
2254 if it works, or if you want to boot a known bad kernel to provide
2255 debugging information) run
2256 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
2257 nextboot -k testkernel
2259 To just build a kernel when you know that it won't mess you up
2260 --------------------------------------------------------------
2261 This assumes you are already running a CURRENT system. Replace
2262 ${arch} with the architecture of your machine (e.g. "i386",
2263 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
2265 cd src/sys/${arch}/conf
2266 config KERNEL_NAME_HERE
2267 cd ../compile/KERNEL_NAME_HERE
2272 If this fails, go to the "To build a kernel" section.
2274 To rebuild everything and install it on the current system.
2275 -----------------------------------------------------------
2276 # Note: sometimes if you are running current you gotta do more than
2277 # is listed here if you are upgrading from a really old current.
2279 <make sure you have good level 0 dumps>
2281 make kernel KERNCONF=YOUR_KERNEL_HERE
2283 <reboot in single user> [3]
2290 To cross-install current onto a separate partition
2291 --------------------------------------------------
2292 # In this approach we use a separate partition to hold
2293 # current's root, 'usr', and 'var' directories. A partition
2294 # holding "/", "/usr" and "/var" should be about 2GB in
2297 <make sure you have good level 0 dumps>
2300 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2301 <maybe newfs current's root partition>
2302 <mount current's root partition on directory ${CURRENT_ROOT}>
2303 make installworld DESTDIR=${CURRENT_ROOT}
2304 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
2305 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
2306 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
2307 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
2308 <reboot into current>
2309 <do a "native" rebuild/install as described in the previous section>
2310 <maybe install compatibility libraries from ports/misc/compat*>
2314 To upgrade in-place from stable to current
2315 ----------------------------------------------
2316 <make sure you have good level 0 dumps>
2318 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
2320 <reboot in single user> [3]
2327 Make sure that you've read the UPDATING file to understand the
2328 tweaks to various things you need. At this point in the life
2329 cycle of current, things change often and you are on your own
2330 to cope. The defaults can also change, so please read ALL of
2331 the UPDATING entries.
2333 Also, if you are tracking -current, you must be subscribed to
2334 freebsd-current@freebsd.org. Make sure that before you update
2335 your sources that you have read and understood all the recent
2336 messages there. If in doubt, please track -stable which has
2337 much fewer pitfalls.
2339 [1] If you have third party modules, such as vmware, you
2340 should disable them at this point so they don't crash your
2343 [3] From the bootblocks, boot -s, and then do
2348 adjkerntz -i # if CMOS is wall time
2349 Also, when doing a major release upgrade, it is required that
2350 you boot into single user mode to do the installworld.
2352 [4] Note: This step is non-optional. Failure to do this step
2353 can result in a significant reduction in the functionality of the
2354 system. Attempting to do it by hand is not recommended and those
2355 that pursue this avenue should read this file carefully, as well
2356 as the archives of freebsd-current and freebsd-hackers mailing lists
2357 for potential gotchas. The -U option is also useful to consider.
2358 See mergemaster(8) for more information.
2360 [5] Usually this step is a noop. However, from time to time
2361 you may need to do this if you get unknown user in the following
2362 step. It never hurts to do it all the time. You may need to
2363 install a new mergemaster (cd src/usr.sbin/mergemaster && make
2364 install) after the buildworld before this step if you last updated
2365 from current before 20130425 or from -stable before 20130430.
2367 [6] This only deletes old files and directories. Old libraries
2368 can be deleted by "make delete-old-libs", but you have to make
2369 sure that no program is using those libraries anymore.
2371 [8] In order to have a kernel that can run the 4.x binaries needed to
2372 do an installworld, you must include the COMPAT_FREEBSD4 option in
2373 your kernel. Failure to do so may leave you with a system that is
2374 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is
2375 required to run the 5.x binaries on more recent kernels. And so on
2376 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7.
2378 Make sure that you merge any new devices from GENERIC since the
2379 last time you updated your kernel config file.
2381 [9] When checking out sources, you must include the -P flag to have
2382 cvs prune empty directories.
2384 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
2385 "?=" instead of the "=" assignment operator, so that buildworld can
2386 override the CPUTYPE if it needs to.
2388 MAKEOBJDIRPREFIX must be defined in an environment variable, and
2389 not on the command line, or in /etc/make.conf. buildworld will
2390 warn if it is improperly defined.
2393 This file contains a list, in reverse chronological order, of major
2394 breakages in tracking -current. It is not guaranteed to be a complete
2395 list of such breakages, and only contains entries since October 10, 2007.
2396 If you need to see UPDATING entries from before that date, you will need
2397 to fetch an UPDATING file from an older FreeBSD release.
2399 Copyright information:
2401 Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
2403 Redistribution, publication, translation and use, with or without
2404 modification, in full or in part, in any form or format of this
2405 document are permitted without further permission from the author.
2407 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2408 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2409 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2410 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2411 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2412 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2413 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2414 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2415 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2416 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2417 POSSIBILITY OF SUCH DAMAGE.
2419 Contact Warner Losh if you have any questions about your use of