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 20160316 p31 FreeBSD-SA-16:14.openssh-xauth
20 FreeBSD-SA-16:15.sysarch
21 FreeBSD-EN-16:04.hyperv
23 Fix OpenSSH xauth(1) command injection. [SA-16:14]
24 Fix incorrect argument validation in sysarch(2). [SA-16:15]
25 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04]
27 20160303 p30 FreeBSD-SA-16:12.openssl
29 Fix multiple vulnerabilities of OpenSSL.
31 20160130 p29 FreeBSD-SA-16:11.openssl
33 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11]
35 20160127 p28 FreeBSD-SA-16:09.ntp
36 FreeBSD-SA-16:10.linux
38 Fix multiple vulnerabilities of ntp. [SA-16:09]
40 Fix Linux compatibility layer issetugid(2) system call
41 vulnerability. [SA-16:10]
43 20160114 p27 FreeBSD-SA-16:07.openssh
45 Fix OpenSSH client information leak. [SA-16:07]
47 20160114 p26 FreeBSD-EN-16:02.pf
48 FreeBSD-EN-16:03.yplib
51 FreeBSD-SA-16:03.linux
52 FreeBSD-SA-16:04.linux
54 FreeBSD-SA-16:06.bsnmpd
56 Fix pf(4) generating bad TCP checksums. [EN-16:02]
57 Fix infinite loop in YP/NIS client library. [EN-16:03]
58 Fix remote denial of service in SCTP. [SA-16:01]
59 Update NTP to 4.2.8p5. [SA-16:02]
60 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03]
61 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04]
62 Fix crash in TCP MD5 signatures. [SA-16:05]
63 Fix insecure default permissions for snmpd.config. [SA-16:06]
65 20151205 p25 FreeBSD-SA-15:26.openssl
67 Fix multiple OpenSSL vulnerabilities. [SA-15:26]
69 20151104 p24 FreeBSD-SA-15:25.ntp [revised]
70 FreeBSD-EN-15:19.kqueue
73 Fix regression in ntpd(8) lacking support for RAWDCF reference
74 clock in 10.1-RELEASE-p23. [SA-15:25.ntp]
76 Fix kqueue write events never fired for files greater 2GB. [EN-15:19]
78 Fix applications exiting due to segmentation violation on a correct
79 memory address. [EN-15:20]
81 20151026: p23 FreeBSD-SA-15:25.ntp
83 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4.
85 The configuration file syntax has been changed, thus mergemaster
86 run is recommended. Now the "kod" parameter requires "limited"
87 parameter. If the ntp.conf is not updated, the ntpd will run
88 successfully, but with KoD disabled.
90 20151002: p22 FreeBSD-SA-15:24.rpcbind [revised]
91 Revised patch to address a regression that prevents NIS from working.
93 20150929: p21 FreeBSD-SA-15:24.rpcbind
95 Fix rpcbind(8) remote denial of service. [SA-15:24]
97 20150916: p20 FreeBSD-EN-15:18.pkg
99 Implement pubkey support for pkg(7) bootstrap. [EN-15:18]
101 20150825: p19 FreeBSD-SA-15:21.amd64
102 FreeBSD-SA-15:22.openssh
103 FreeBSD-EN-15:14.ixgbe
106 Fix local privilege escalation in IRET handler. [SA-15:21]
108 Fix OpenSSH multiple vulnerabilities. [SA-15:22]
110 Disabled ixgbe(4) flow-director support. [EN-15:14]
112 Fix insufficient check of unsupported pkg(7) signature methods.
115 20150818: p18 FreeBSD-SA-15:20.expat
117 Fix multiple integer overflows in expat (libbsdxml) XML parser.
120 20150805: p17 FreeBSD-SA-15:18.bsdpatch
121 FreeBSD-SA-15:19.routed
123 Fix patch(1) shell injection vulnerability via ed(1).
126 Fix routed remote denial of service vulnerability. [SA-15:19]
128 20150728: p16 FreeBSD-SA-15:14.bsdpatch
130 FreeBSD-SA-15:16.openssh
132 Fix patch(1) shell injection vulnerability. [SA-15:14]
134 Fix resource exhaustion in TCP reassembly. [SA-15:15]
136 Fix OpenSSH multiple vulnerabilities. [SA-15:16]
138 20150721: p15 FreeBSD-SA-15:13.tcp
140 Fix resource exhaustion due to sessions stuck in LAST_ACK state.
143 20150630: p14 FreeBSD-EN-15:08.sendmail [revised]
144 FreeBSD-EN-15:09.xlocale
145 FreeBSD-EN-15:10.iconv
147 Improvements to sendmail TLS/DH interoperability. [EN-15:08]
149 Fix inconsistency between locale and rune locale states.
152 Improved iconv(3) UTF-7 support. [EN-15:10]
154 20150618: p13 FreeBSD-EN-15:08.sendmail
155 Improvements to sendmail TLS/DH interoperability. [EN-15:08]
157 20150612: p12 FreeBSD-SA-15:10.openssl
158 Fix multiple vulnerabilities in OpenSSL. [SA-15:10]
160 20150609: p11 FreeBSD-EN-15:06.file
163 Updated base system file(1) to 5.22 to address multiple denial
164 of service issues. [EN-15:06]
166 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used.
169 20150513: p10 FreeBSD-EN-15:04.freebsd-update
172 Fix bug with freebsd-update(8) that does not ensure the previous
173 upgrade was completed. [EN-15:04]
175 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05]
177 20150407: p9 FreeBSD-SA-15:04.igmp [revised]
179 FreeBSD-SA-15:08.bsdinstall
180 FreeBSD-SA-15:09.ipv6
182 Improved patch for SA-15:04.igmp.
184 Fix multiple vulnerabilities of ntp. [SA-15:07]
186 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08]
188 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09]
191 Fix patch for SA-15:06.openssl.
193 20150319: p7 FreeBSD-SA-15:06.openssl
194 Fix multiple vulnerabilities in OpenSSL. [SA-15:06]
196 20150225: p6 FreeBSD-SA-15:04.igmp
198 FreeBSD-EN-15:02.openssl
199 FreeBSD-EN-15:03.freebsd-update
201 Fix integer overflow in IGMP protocol. [SA-15:04]
203 Fix vt(4) crash with improper ioctl parameters. [EN-15:01]
205 Updated base system OpenSSL to 1.0.1l. [EN-15:02]
207 Fix freebsd-update libraries update ordering issue. [EN-15:03]
209 20150127: p5 FreeBSD-SA-15:02.kmem
210 FreeBSD-SA-15:03.sctp
212 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure
213 vulnerability. [SA-15:02]
215 Fix SCTP stream reset vulnerability. [SA-15:03]
217 20150114: p4 FreeBSD-SA-15:01.openssl
218 Fix multiple vulnerabilities in OpenSSL. [SA-15:01]
220 20141223: p3 FreeBSD-SA-14:31.ntp
221 FreeBSD-EN-14:13.freebsd-update
223 Fix multiple vulnerabilities in NTP suite. [SA-14:31]
224 Fix directory deletion issue in freebsd-update. [EN-14:13]
226 20141217: p2 FreeBSD-SA-14:30.unbound
227 Fix unbound remote denial of service vulnerability.
229 20141210: p1 FreeBSD-SA-14:27.stdio
230 FreeBSD-SA-14:28.file
232 Fix buffer overflow in stdio. [SA-14:27]
234 Fix multiple vulnerabilities in file(1) and libmagic(3).
238 The ofwfb driver, used to provide a graphics console on PowerPC when
239 using vt(4), no longer allows mmap() of all of physical memory. This
240 will prevent Xorg on PowerPC with some ATI graphics cards from
241 initializing properly unless x11-servers/xorg-server is updated to
245 The libatf-c and libatf-c++ major versions were downgraded to 0 and
246 1 respectively to match the upstream numbers. They were out of
247 sync because, when they were originally added to FreeBSD, the
248 upstream versions were not respected. These libraries are private
249 and not yet built by default, so renumbering them should be a
250 non-issue. However, unclean source trees will yield broken test
251 programs once the operator executes "make delete-old-libs" after a
254 Additionally, the atf-sh binary was made private by moving it into
255 /usr/libexec/. Already-built shell test programs will keep the
256 path to the old binary so they will break after "make delete-old"
259 If you are using WITH_TESTS=yes (not the default), wipe the object
260 tree and rebuild from scratch to prevent spurious test failures.
261 This is only needed once: the misnumbered libraries and misplaced
262 binaries have been added to OptionalObsoleteFiles.inc so they will
263 be removed during a clean upgrade.
266 The ixgbe tunables now match their sysctl counterparts, for example:
267 hw.ixgbe.enable_aim => hw.ix.enable_aim
268 Anyone using ixgbe tunables should ensure they update /boot/loader.conf.
271 The NFSv4.1 server committed by r269398 changes the internal
272 function call interfaces used between the NFS and krpc modules.
273 As such, __FreeBSD_version was bumped.
276 The default unbound configuration has been modified to address
277 issues with reverse lookups on networks that use private
278 address ranges. If you use the local_unbound service, run
279 "service local_unbound setup" as root to regenerate your
280 configuration, then "service local_unbound reload" to load the
284 It is no longer necessary to include the dwarf version in your DEBUG
285 options in your kernel config file. The bug that required it to be
286 placed in the config file has bene fixed. DEBUG should now just
287 contain -g. The build system will automatically update things
288 to do the right thing.
291 Several ABI breaking changes were merged to CTL and new iSCSI code.
292 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and
293 iscsictl need to be rebuilt to work with a new kernel.
296 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
297 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
298 which differs from the behaviour controlled by this knob.)
301 On i386 and amd64 systems, the onifconsole flag is now set by default
302 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled
303 as a login TTY if it is set in the bootloader as an active kernel
304 console. No changes in behavior should result otherwise. To revert to
305 the previous behavior, set ttyu0 to "off" in /etc/ttys.
308 Clang and llvm have been upgraded to 3.4.1 release.
311 Clang and llvm have been upgraded to 3.4 release.
314 If a Makefile in a tests/ directory was auto-generating a Kyuafile
315 instead of providing an explicit one, this would prevent such
316 Makefile from providing its own Kyuafile in the future during
317 NO_CLEAN builds. This has been fixed in the Makefiles but manual
318 intervention is needed to clean an objdir if you use NO_CLEAN:
319 # find /usr/obj -name Kyuafile | xargs rm -f
322 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
323 capability mode support. Please note that enabling the feature in
324 kernel is still highly recommended.
327 OpenSSH is now built with sandbox support, and will use sandbox as
328 the default privilege separation method. This requires Capsicum
329 capability mode support in kernel.
332 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has
333 been deprecated and will not be part of FreeBSD 11.0 and later
334 releases. If you use this driver, please consider switching to
335 the nfe(4) driver instead.
341 The behavior of gss_pseudo_random() for the krb5 mechanism
342 has changed, for applications requesting a longer random string
343 than produced by the underlying enctype's pseudo-random() function.
344 In particular, the random string produced from a session key of
345 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
346 be different at the 17th octet and later, after this change.
347 The counter used in the PRF+ construction is now encoded as a
348 big-endian integer in accordance with RFC 4402.
349 __FreeBSD_version is bumped to 1000701.
352 The WITHOUT_ATF build knob has been removed and its functionality
353 has been subsumed into the more generic WITHOUT_TESTS. If you were
354 using the former to disable the build of the ATF libraries, you
355 should change your settings to use the latter.
358 The default version of mtree is nmtree which is obtained from
359 NetBSD. The output is generally the same, but may vary
360 slightly. If you found you need identical output adding
361 "-F freebsd9" to the command line should do the trick. For the
362 time being, the old mtree is available as fmtree.
365 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
366 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
367 1.1.4_8 and verify bsdyml not linked in, before running "make
369 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
371 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
374 The rc.d/jail script has been updated to support jail(8)
375 configuration file. The "jail_<jname>_*" rc.conf(5) variables
376 for per-jail configuration are automatically converted to
377 /var/run/jail.<jname>.conf before the jail(8) utility is invoked.
378 This is transparently backward compatible. See below about some
379 incompatibilities and rc.conf(5) manual page for more details.
381 These variables are now deprecated in favor of jail(8) configuration
382 file. One can use "rc.d/jail config <jname>" command to generate
383 a jail(8) configuration file in /var/run/jail.<jname>.conf without
384 running the jail(8) utility. The default pathname of the
385 configuration file is /etc/jail.conf and can be specified by
386 using $jail_conf or $jail_<jname>_conf variables.
388 Please note that jail_devfs_ruleset accepts an integer at
389 this moment. Please consider to rewrite the ruleset name
393 BIND has been removed from the base system. If all you need
394 is a local resolver, simply enable and start the local_unbound
395 service instead. Otherwise, several versions of BIND are
396 available in the ports tree. The dns/bind99 port is one example.
398 With this change, nslookup(1) and dig(1) are no longer in the base
399 system. Users should instead use host(1) and drill(1) which are
400 in the base system. Alternatively, nslookup and dig can
401 be obtained by installing the dns/bind-tools port.
404 With the addition of unbound(8), a new unbound user is now
405 required during installworld. "mergemaster -p" can be used to
406 add the user prior to installworld, as documented in the handbook.
409 OpenSSH is now built with DNSSEC support, and will by default
410 silently trust signed SSHFP records. This can be controlled with
411 the VerifyHostKeyDNS client configuration setting. DNSSEC support
412 can be disabled entirely with the WITHOUT_LDNS option in src.conf.
415 The GNU Compiler Collection and C++ standard library (libstdc++)
416 are no longer built by default on platforms where clang is the system
417 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX
421 The PROCDESC kernel option is now part of the GENERIC kernel
422 configuration and is required for the rwhod(8) to work.
423 If you are using custom kernel configuration, you should include
427 The API and ABI related to the Capsicum framework was modified
428 in backward incompatible way. The userland libraries and programs
429 have to be recompiled to work with the new kernel. This includes the
430 following libraries and programs, but the whole buildworld is
431 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl,
432 kdump, procstat, rwho, rwhod, uniq.
435 AES-NI intrinsic support has been added to gcc. The AES-NI module
436 has been updated to use this support. A new gcc is required to build
437 the aesni module on both i386 and amd64.
440 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices.
441 Thus "device padlock_rng" and "device rdrand_rng" should be
442 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG".
445 WITH_ICONV has been split into two feature sets. WITH_ICONV now
446 enables just the iconv* functionality and is now on by default.
447 WITH_LIBICONV_COMPAT enables the libiconv api and link time
448 compatability. Set WITHOUT_ICONV to build the old way.
449 If you have been using WITH_ICONV before, you will very likely
450 need to turn on WITH_LIBICONV_COMPAT.
453 INVARIANTS option now enables DEBUG for code with OpenSolaris and
454 Illumos origin, including ZFS. If you have INVARIANTS in your
455 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG
457 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS)
458 locks if WITNESS option was set. Because that generated a lot of
459 witness(9) reports and all of them were believed to be false
460 positives, this is no longer done. New option OPENSOLARIS_WITNESS
461 can be used to achieve the previous behavior.
464 Timer values in IPv6 data structures now use time_uptime instead
465 of time_second. Although this is not a user-visible functional
466 change, userland utilities which directly use them---ndp(8),
467 rtadvd(8), and rtsold(8) in the base system---need to be updated
471 find -delete can now delete the pathnames given as arguments,
472 instead of only files found below them or if the pathname did
473 not contain any slashes. Formerly, the following error message
476 find: -delete: <path>: relative path potentially not safe
478 Deleting the pathnames given as arguments can be prevented
479 without error messages using -mindepth 1 or by changing
480 directory and passing "." as argument to find. This works in the
481 old as well as the new version of find.
484 Behavior of devfs rules path matching has been changed.
485 Pattern is now always matched against fully qualified devfs
486 path and slash characters must be explicitly matched by
487 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs
488 subdirectories must be reviewed.
491 The default ARM ABI has changed to the ARM EABI. The old ABI is
492 incompatible with the ARM EABI and all programs and modules will
493 need to be rebuilt to work with a new kernel.
495 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set.
497 NOTE: Support for the old ABI will be removed in the future and
498 users are advised to upgrade.
501 pkg_install has been disconnected from the build if you really need it
502 you should add WITH_PKGTOOLS in your src.conf(5).
505 Most of network statistics structures were changed to be able
506 keep 64-bits counters. Thus all tools, that work with networking
507 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.)
510 Fix targets that run multiple make's to use && rather than ;
511 so that subsequent steps depend on success of previous.
513 NOTE: if building 'universe' with -j* on stable/8 or stable/9
514 it would be better to start the build using bmake, to avoid
515 overloading the machine.
518 Fix a bug that allowed a tracing process (e.g. gdb) to write
519 to a memory-mapped file in the traced process's address space
520 even if neither the traced process nor the tracing process had
521 write access to that file.
524 CVS has been removed from the base system. An exact copy
525 of the code is available from the devel/cvs port.
528 Some people report the following error after the switch to bmake:
530 make: illegal option -- J
531 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable]
533 *** [buildworld] Error code 2
535 this likely due to an old instance of make in
536 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE})
537 which src/Makefile will use that blindly, if it exists, so if
538 you see the above error:
540 rm -rf `make -V MAKEPATH`
545 Use bmake by default.
546 Whereas before one could choose to build with bmake via
547 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old
548 make. The goal is to remove these knobs for 10-RELEASE.
550 It is worth noting that bmake (like gmake) treats the command
551 line as the unit of failure, rather than statements within the
552 command line. Thus '(cd some/where && dosomething)' is safer
553 than 'cd some/where; dosomething'. The '()' allows consistent
554 behavior in parallel build.
557 Fix a bug that allows NFS clients to issue READDIR on files.
560 The WITHOUT_IDEA option has been removed because
561 the IDEA patent expired.
564 The sysctl which controls TRIM support under ZFS has been renamed
565 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been
569 The mergemaster command now uses the default MAKEOBJDIRPREFIX
570 rather than creating it's own in the temporary directory in
571 order allow access to bootstrapped versions of tools such as
572 install and mtree. When upgrading from version of FreeBSD where
573 the install command does not support -l, you will need to
574 install a new mergemaster command if mergemaster -p is required.
575 This can be accomplished with the command (cd src/usr.sbin/mergemaster
579 Legacy ATA stack, disabled and replaced by new CAM-based one since
580 FreeBSD 9.0, completely removed from the sources. Kernel modules
581 atadisk and atapi*, user-level tools atacontrol and burncd are
582 removed. Kernel option `options ATA_CAM` is now permanently enabled
586 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2)
587 and socketpair(2). Software, in particular Kerberos, may
588 automatically detect and use these during building. The resulting
589 binaries will not work on older kernels.
592 CTL_DISABLE has also been added to the sparc64 GENERIC (for further
593 information, see the respective 20130304 entry).
596 Recent commits to callout(9) changed the size of struct callout,
597 so the KBI is probably heavily disturbed. Also, some functions
598 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced
599 by macros. Every kernel module using it won't load, so rebuild
602 The ctl device has been re-enabled in GENERIC for i386 and amd64,
603 but does not initialize by default (because of the new CTL_DISABLE
604 option) to save memory. To re-enable it, remove the CTL_DISABLE
605 option from the kernel config file or set kern.cam.ctl.disable=0
606 in /boot/loader.conf.
609 The ctl device has been disabled in GENERIC for i386 and amd64.
610 This was done due to the extra memory being allocated at system
611 initialisation time by the ctl driver which was only used if
612 a CAM target device was created. This makes a FreeBSD system
613 unusable on 128MB or less of RAM.
616 A new compression method (lz4) has been merged to -HEAD. Please
617 refer to zpool-features(7) for more information.
619 Please refer to the "ZFS notes" section of this file for information
620 on upgrading boot ZFS pools.
623 A BSD-licensed patch(1) variant has been added and is installed
624 as bsdpatch, being the GNU version the default patch.
625 To inverse the logic and use the BSD-licensed one as default,
626 while having the GNU version installed as gnupatch, rebuild
627 and install world with the WITH_BSD_PATCH knob set.
630 Due to the use of the new -l option to install(1) during build
631 and install, you must take care not to directly set the INSTALL
632 make variable in your /etc/make.conf, /etc/src.conf, or on the
633 command line. If you wish to use the -C flag for all installs
634 you may be able to add INSTALL+=-C to /etc/make.conf or
638 The install(1) option -M has changed meaning and now takes an
639 argument that is a file or path to append logs to. In the
640 unlikely event that -M was the last option on the command line
641 and the command line contained at least two files and a target
642 directory the first file will have logs appended to it. The -M
643 option served little practical purpose in the last decade so its
644 use is expected to be extremely rare.
647 After switching to Clang as the default compiler some users of ZFS
648 on i386 systems started to experience stack overflow kernel panics.
649 Please consider using 'options KSTACK_PAGES=4' in such configurations.
652 GEOM_LABEL now mangles label names read from file system metadata.
653 Mangling affect labels containing spaces, non-printable characters,
654 '%' or '"'. Device names in /etc/fstab and other places may need to
658 By default, only the 10 most recent kernel dumps will be saved. To
659 restore the previous behaviour (no limit on the number of kernel dumps
660 stored in the dump directory) add the following line to /etc/rc.conf:
665 With the addition of auditdistd(8), a new auditdistd user is now
666 required during installworld. "mergemaster -p" can be used to
667 add the user prior to installworld, as documented in the handbook.
670 The sin6_scope_id member variable in struct sockaddr_in6 is now
671 filled by the kernel before passing the structure to the userland via
672 sysctl or routing socket. This means the KAME-specific embedded scope
673 id in sin6_addr.s6_addr[2] is always cleared in userland application.
674 This behavior can be controlled by net.inet6.ip6.deembed_scopeid.
675 __FreeBSD_version is bumped to 1000025.
678 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default.
679 This means that the world and kernel will be compiled with clang
680 and that clang will be installed as /usr/bin/cc, /usr/bin/c++,
681 and /usr/bin/cpp. To disable this behavior and revert to building
682 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions
683 of current may need to bootstrap WITHOUT_CLANG first if the clang
684 build fails (its compatibility window doesn't extend to the 9 stable
688 The IPFIREWALL_FORWARD kernel option has been removed. Its
689 functionality now turned on by default.
692 The ZERO_COPY_SOCKET kernel option has been removed and
693 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP.
694 NB: SOCKET_SEND_COW uses the VM page based copy-on-write
695 mechanism which is not safe and may result in kernel crashes.
696 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current
697 driver supports disposeable external page sized mbuf storage.
698 Proper replacements for both zero-copy mechanisms are under
699 consideration and will eventually lead to complete removal
700 of the two kernel options.
703 The IPv4 network stack has been converted to network byte
704 order. The following modules need to be recompiled together
705 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4),
706 pf(4), ipfw(4), ng_ipfw(4), stf(4).
709 Support for non-MPSAFE filesystems was removed from VFS. The
710 VFS_VERSION was bumped, all filesystem modules shall be
714 All the non-MPSAFE filesystems have been disconnected from
715 the build. The full list includes: codafs, hpfs, ntfs, nwfs,
716 portalfs, smbfs, xfs.
719 The interface cloning API and ABI has changed. The following
720 modules need to be recompiled together with kernel:
721 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4),
722 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4),
723 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4).
726 The sdhci driver was split in two parts: sdhci (generic SD Host
727 Controller logic) and sdhci_pci (actual hardware driver).
728 No kernel config modifications are required, but if you
729 load sdhc as a module you must switch to sdhci_pci instead.
732 Import the FUSE kernel and userland support into base system.
735 The GNU sort(1) program has been removed since the BSD-licensed
736 sort(1) has been the default for quite some time and no serious
737 problems have been reported. The corresponding WITH_GNU_SORT
741 The pfil(9) API/ABI for AF_INET family has been changed. Packet
742 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled
746 The net80211(4) ABI has been changed to allow for improved driver
747 PS-POLL and power-save support. All wireless drivers need to be
748 recompiled to work with the new kernel.
751 The random(4) support for the VIA hardware random number
752 generator (`PADLOCK') is no longer enabled unconditionally.
753 Add the padlock_rng device in the custom kernel config if
754 needed. The GENERIC kernels on i386 and amd64 do include the
755 device, so the change only affects the custom kernel
759 The pf(4) packet filter ABI has been changed. pfctl(8) and
760 snmp_pf module need to be recompiled to work with new kernel.
763 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged
764 to -HEAD. Pools that have empty_bpobj in active state can not be
765 imported read-write with ZFS implementations that do not support
766 this feature. For more information read the zpool-features(5)
770 The sparc64 ZFS loader has been changed to no longer try to auto-
771 detect ZFS providers based on diskN aliases but now requires these
772 to be explicitly listed in the OFW boot-device environment variable.
775 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring
776 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are
777 configuration changes. Make sure to merge /etc/ssl/openssl.cnf.
780 The following sysctls and tunables have been renamed for consistency
781 with other variables:
782 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered
783 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered
786 The sort utility has been replaced with BSD sort. For now, GNU sort
787 is also available as "gnusort" or the default can be set back to
788 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be
789 installed as "bsdsort".
792 A new version of ZFS (pool version 5000) has been merged to -HEAD.
793 Starting with this version the old system of ZFS pool versioning
794 is superseded by "feature flags". This concept enables forward
795 compatibility against certain future changes in functionality of ZFS
796 pools. The first read-only compatible "feature flag" for ZFS pools
797 is named "com.delphix:async_destroy". For more information
798 read the new zpool-features(5) manual page.
799 Please refer to the "ZFS notes" section of this file for information
800 on upgrading boot ZFS pools.
803 The malloc(3) implementation embedded in libc now uses sources imported
804 as contrib/jemalloc. The most disruptive API change is to
805 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf,
806 delete it prior to installworld, and optionally re-create it using the
807 new format after rebooting. See malloc.conf(5) for details
808 (specifically the TUNING section and the "opt.*" entries in the MALLCTL
812 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb
813 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is
814 now spelled mips. This is to aid compatibility with third-party
815 software that expects this naming scheme in uname(3). Little-endian
816 settings are unchanged. If you are updating a big-endian mips64 machine
817 from before this change, you may need to set MACHINE_ARCH=mips64 in
818 your environment before the new build system will recognize your machine.
821 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported
825 Now unix domain sockets behave "as expected" on nullfs(5). Previously
826 nullfs(5) did not pass through all behaviours to the underlying layer,
827 as a result if we bound to a socket on the lower layer we could connect
828 only to the lower path; if we bound to the upper layer we could connect
829 only to the upper path. The new behavior is one can connect to both the
830 lower and the upper paths regardless what layer path one binds to.
833 The getifaddrs upgrade path broken with 20111215 has been restored.
834 If you have upgraded in between 20111215 and 20120209 you need to
835 recompile libc again with your kernel. You still need to recompile
836 world to be able to configure CARP but this restriction already
840 The set_rcvar() function has been removed from /etc/rc.subr. All
841 base and ports rc.d scripts have been updated, so if you have a
842 port installed with a script in /usr/local/etc/rc.d you can either
843 hand-edit the rcvar= line, or reinstall the port.
845 An easy way to handle the mass-update of /etc/rc.d:
846 rm /etc/rc.d/* && mergemaster -i
849 panic(9) now stops other CPUs in the SMP systems, disables interrupts
850 on the current CPU and prevents other threads from running.
851 This behavior can be reverted using the kern.stop_scheduler_on_panic
853 The new behavior can be incompatible with kern.sync_on_panic.
856 The carp(4) facility has been changed significantly. Configuration
857 of the CARP protocol via ifconfig(8) has changed, as well as format
858 of CARP events submitted to devd(8) has changed. See manual pages
859 for more information. The arpbalance feature of carp(4) is currently
860 not supported anymore.
862 Size of struct in_aliasreq, struct in6_aliasreq has changed. User
863 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8),
864 need to be recompiled.
867 The acpi_wmi(4) status device /dev/wmistat has been renamed to
871 The option VFS_ALLOW_NONMPSAFE option has been added in order to
872 explicitely support non-MPSAFE filesystems.
873 It is on by default for all supported platform at this present
877 The broken amd(4) driver has been replaced with esp(4) in the amd64,
878 i386 and pc98 GENERIC kernel configuration files.
881 sysinstall has been removed
884 The stable/9 branch created in subversion. This corresponds to the
885 RELENG_9 branch in CVS.
888 This commit modifies vfs_register() so that it uses a hash
889 calculation to set vfc_typenum, which is enabled by default.
890 The first time a system is booted after this change, the
891 vfc_typenum values will change for all file systems. The
892 main effect of this is a change to the NFS server file handles
893 for file systems that use vfc_typenum in their fsid, such as ZFS.
894 It will, however, prevent vfc_typenum from changing when file
895 systems are loaded in a different order for subsequent reboots.
896 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf
897 until you are ready to remount all NFS clients after a reboot.
900 Bump the shared library version numbers for libraries that
901 do not use symbol versioning, have changed the ABI compared
902 to stable/8 and which shared library version was not bumped.
903 Done as part of 9.0-RELEASE cycle.
906 During the merge of Capsicum features, the fget(9) KPI was modified.
907 This may require the rebuilding of out-of-tree device drivers --
908 issues have been reported specifically with the nVidia device driver.
909 __FreeBSD_version is bumped to 900041.
911 Also, there is a period between 20110811 and 20110814 where the
912 special devices /dev/{stdin,stdout,stderr} did not work correctly.
913 Building world from a kernel during that window may not work.
916 The packet filter (pf) code has been updated to OpenBSD 4.5.
917 You need to update userland tools to be in sync with kernel.
918 This update breaks backward compatibility with earlier pfsync(4)
919 versions. Care must be taken when updating redundant firewall setups.
922 The following sysctls and tunables are retired on x86 platforms:
924 machdep.hlt_logical_cpus
925 The following sysctl is retired:
926 machdep.hyperthreading_allowed
927 The sysctls were supposed to provide a way to dynamically offline and
928 online selected CPUs on x86 platforms, but the implementation has not
929 been reliable especially with SCHED_ULE scheduler.
930 machdep.hyperthreading_allowed tunable is still available to ignore
931 hyperthreading CPUs at OS level.
932 Individual CPUs can be disabled using hint.lapic.X.disabled tunable,
933 where X is an APIC ID of a CPU. Be advised, though, that disabling
934 CPUs in non-uniform fashion will result in non-uniform topology and
935 may lead to sub-optimal system performance with SCHED_ULE, which is
939 cpumask_t type is retired and cpuset_t is used in order to describe
943 Changes to ifconfig(8) for dynamic address family detection mandate
944 that you are running a kernel of 20110525 or later. Make sure to
945 follow the update procedure to boot a new kernel before installing
949 Support for sun4v architecture is officially dropped
952 Several KPI breaking changes have been committed to the mii(4) layer,
953 the PHY drivers and consequently some Ethernet drivers using mii(4).
954 This means that miibus.ko and the modules of the affected Ethernet
955 drivers need to be recompiled.
957 Note to kernel developers: Given that the OUI bit reversion problem
958 was fixed as part of these changes all mii(4) commits related to OUIs,
959 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific
960 handling, no longer can be merged verbatim to stable/8 and previous
964 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci'
965 into their kernel configurations along with 'device pci'.
968 The default NFS client is now the new NFS client, so fstype "newnfs"
969 is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
970 Although mounts via fstype "nfs" will usually work without userland
971 changes, it is recommended that the mount(8) and mount_nfs(8)
972 commands be rebuilt from sources and that a link to mount_nfs called
973 mount_oldnfs be created. The new client is compiled into the
974 kernel with "options NFSCL" and this is needed for diskless root
975 file systems. The GENERIC kernel configs have been changed to use
976 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER.
977 To use the regular/old client, you can "mount -t oldnfs ...". For
978 a diskless root file system, you must also include a line like:
980 vfs.root.mountfrom="oldnfs:"
982 in the boot/loader.conf on the root fs on the NFS server to make
983 a diskless root fs use the old client.
986 The GENERIC kernels for all architectures now default to the new
987 CAM-based ATA stack. It means that all legacy ATA drivers were
988 removed and replaced by respective CAM drivers. If you are using
989 ATA device names in /etc/fstab or other places, make sure to update
990 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY,
991 where 'Y's are the sequential numbers starting from zero for each type
992 in order of detection, unless configured otherwise with tunables,
993 see cam(4)). There will be symbolic links created in /dev/ to map
994 old adX devices to the respective adaY. They should provide basic
995 compatibility for file systems mounting in most cases, but they do
996 not support old user-level APIs and do not have respective providers
997 in GEOM. Consider using updated management tools with new device names.
999 It is possible to load devices ahci, ata, siis and mvs as modules,
1000 but option ATA_CAM should remain in kernel configuration to make ata
1001 module work as CAM driver supporting legacy ATA controllers. Device ata
1002 still can be used in modular fashion (atacore + ...). Modules atadisk
1003 and atapi* are not used and won't affect operation in ATA_CAM mode.
1004 Note that to use CAM-based ATA kernel should include CAM devices
1005 scbus, pass, da (or explicitly ada), cd and optionally others. All of
1006 them are parts of the cam module.
1008 ataraid(4) functionality is now supported by the RAID GEOM class.
1009 To use it you can load geom_raid kernel module and use graid(8) tool
1010 for management. Instead of /dev/arX device names, use /dev/raid/rX.
1012 No kernel config options or code have been removed, so if a problem
1013 arises, please report it and optionally revert to the old ATA stack.
1014 In order to do it you can remove from the kernel config:
1019 , and instead add back:
1020 device atadisk # ATA disk drives
1021 device ataraid # ATA RAID drives
1022 device atapicd # ATAPI CDROM drives
1023 device atapifd # ATAPI floppy drives
1024 device atapist # ATAPI tape drives
1027 The default NFS server has been changed to the new server, which
1028 was referred to as the experimental server. If you need to switch
1029 back to the old NFS server, you must now put the "-o" option on
1030 both the mountd and nfsd commands. This can be done using the
1031 mountd_flags and nfs_server_flags rc.conf variables until an
1032 update to the rc scripts is committed, which is coming soon.
1035 The GNU Objective-C runtime library (libobjc), and other Objective-C
1036 related components have been removed from the base system. If you
1037 require an Objective-C library, please use one of the available ports.
1040 ath(4) has been split into bus- and device- modules. if_ath contains
1041 the HAL, the TX rate control and the network device code. if_ath_pci
1042 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb
1043 contains the AHB glue. Users need to load both if_ath_pci and if_ath
1044 in order to use ath on everything else.
1046 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only
1047 need to load if_ath and if_ath_pci for ath(4) operation.
1050 As part of the replacement of sysinstall, the process of building
1051 release media has changed significantly. For details, please re-read
1052 release(7), which has been updated to reflect the new build process.
1055 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This
1056 is the last available version under GPLv2. It brings a number of new
1057 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE
1058 4.1 and SSE 4.2), better support for powerpc64, a number of new
1059 directives, and lots of other small improvements. See the ChangeLog
1060 file in contrib/binutils for the full details.
1063 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868
1064 compliant, and will now use half of hash for authentication.
1065 This will break interoperability with all stacks (including all
1066 actual FreeBSD versions) who implement
1067 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for
1069 The only workaround with such peers is to use another HMAC
1070 algorithm for IPsec ("phase 2") authentication.
1073 Remove the uio_yield prototype and symbol. This function has
1074 been misnamed since it was introduced and should not be
1075 globally exposed with this name. The equivalent functionality
1076 is now available using kern_yield(curthread->td_user_pri).
1077 The function remains undocumented.
1080 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers,
1081 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking
1082 for scalar sysctls is defined but disabled. Code that needs
1083 UQUAD to pass the type checking that must compile on older
1084 systems where the define is not present can check against
1085 __FreeBSD_version >= 900030.
1087 The system dialog(1) has been replaced with a new version previously
1088 in ports as devel/cdialog. dialog(1) is mostly command-line compatible
1089 with the previous version, but the libdialog associated with it has
1090 a largely incompatible API. As such, the original version of libdialog
1091 will be kept temporarily as libodialog, until its base system consumers
1092 are replaced or updated. Bump __FreeBSD_version to 900030.
1095 If you are trying to run make universe on a -stable system, and you get
1096 the following warning:
1097 "Makefile", line 356: "Target architecture for i386/conf/GENERIC
1098 unknown. config(8) likely too old."
1099 or something similar to it, then you must upgrade your -stable system
1100 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in
1101 stable/8) or build the config from the latest stable/8 branch and
1102 install it on your system.
1104 Prior to this date, building a current universe on 8-stable system from
1105 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing
1106 error in the first kernel build phase. A new config on those old
1107 systems will fix that problem for older versions of -current.
1110 The TCP stack has been modified to allow Khelp modules to interact with
1111 it via helper hook points and store per-connection data in the TCP
1112 control block. Bump __FreeBSD_version to 900029. User space tools that
1113 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to
1117 Generic IEEE 802.3 annex 31B full duplex flow control support has been
1118 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along
1119 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted
1120 to take advantage of it instead of using custom implementations. This
1121 means that these drivers now no longer unconditionally advertise
1122 support for flow control but only do so if flow control is a selected
1123 media option. This was implemented in the generic support that way in
1124 order to allow flow control to be switched on and off via ifconfig(8)
1125 with the PHY specific default to typically off in order to protect
1126 from unwanted effects. Consequently, if you used flow control with
1127 one of the above mentioned drivers you now need to explicitly enable
1128 it, for example via:
1129 ifconfig bge0 media auto mediaopt flowcontrol
1131 Along with the above mentioned changes generic support for setting
1132 1000baseT master mode also has been added and brgphy(4), ciphy(4),
1133 e1000phy(4) as well as ip1000phy(4) have been converted to take
1134 advantage of it. This means that these drivers now no longer take the
1135 link0 parameter for selecting master mode but the master media option
1136 has to be used instead, for example like in the following:
1137 ifconfig bge0 media 1000baseT mediaopt full-duplex,master
1139 Selection of master mode now is also available with all other PHY
1140 drivers supporting 1000baseT.
1143 The TCP stack has received a significant update to add support for
1144 modularised congestion control and generally improve the clarity of
1145 congestion control decisions. Bump __FreeBSD_version to 900025. User
1146 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g.
1147 sockstat) need to be recompiled.
1150 The man(1) utility has been replaced by a new version that no longer
1151 uses /etc/manpath.config. Please consult man.conf(5) for how to
1152 migrate local entries to the new format.
1155 The copyright strings printed by login(1) and sshd(8) at the time of a
1156 new connection have been removed to follow other operating systems and
1160 A workaround for a fixed ld bug has been removed in kernel code,
1161 so make sure that your system ld is built from sources after
1162 revision 210245 from 2010-07-19 (r211583 if building head kernel
1163 on stable/8, r211584 for stable/7; both from 2010-08-21).
1164 A symptom of incorrect ld version is different addresses for
1165 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules.
1168 The $ipv6_prefer variable in rc.conf(5) has been split into
1169 $ip6addrctl_policy and $ipv6_activate_all_interfaces.
1171 The $ip6addrctl_policy is a variable to choose a pre-defined
1172 address selection policy set by ip6addrctl(8). A value
1173 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The
1176 The $ipv6_activate_all_interfaces specifies whether IFDISABLED
1177 flag (see an entry of 20090926) is set on an interface with no
1178 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for
1179 security reason. If you want IPv6 link-local address on all
1180 interfaces by default, set this to "YES".
1182 The old ipv6_prefer="YES" is equivalent to
1183 ipv6_activate_all_interfaces="YES" and
1184 ip6addrctl_policy="ipv6_prefer".
1187 DTrace has grown support for userland tracing. Due to this, DTrace is
1188 now i386 and amd64 only.
1189 dtruss(1) is now installed by default on those systems and a new
1190 kernel module is needed for userland tracing: fasttrap.
1191 No changes to your kernel config file are necessary to enable
1192 userland tracing, but you might consider adding 'STRIP=' and
1193 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want
1194 to have informative userland stack traces in DTrace (ustack).
1197 The acpi_aiboost(4) driver has been removed in favor of the new
1198 aibs(4) driver. You should update your kernel configuration file.
1201 BSD grep has been imported to the base system and it is built by
1202 default. It is completely BSD licensed, highly GNU-compatible, uses
1203 less memory than its GNU counterpart and has a small codebase.
1204 However, it is slower than its GNU counterpart, which is mostly
1205 noticeable for larger searches, for smaller ones it is measurable
1206 but not significant. The reason is complex, the most important factor
1207 is that we lack a modern and efficient regex library and GNU
1208 overcomes this by optimizing the searches internally. Future work
1209 on improving the regex performance is planned, for the meantime,
1210 users that need better performance, can build GNU grep instead by
1211 setting the WITH_GNU_GREP knob.
1214 Due to the import of powerpc64 support, all existing powerpc kernel
1215 configuration files must be updated with a machine directive like this:
1216 machine powerpc powerpc
1218 In addition, an updated config(8) is required to build powerpc kernels
1222 A new version of ZFS (version 15) has been merged to -HEAD.
1223 This version uses a python library for the following subcommands:
1224 zfs allow, zfs unallow, zfs groupspace, zfs userspace.
1225 For full functionality of these commands the following port must
1226 be installed: sysutils/py-zfs
1229 'vm_page's are now hashed by physical address to an array of mutexes.
1230 Currently this is only used to serialize access to hold_count. Over
1231 time the page queue mutex will be peeled away. This changes the size
1232 of pmap on every architecture. And requires all callers of vm_page_hold
1233 and vm_page_unhold to be updated.
1236 WITH_CTF can now be specified in src.conf (not recommended, there
1237 are some problems with static executables), make.conf (would also
1238 affect ports which do not use GNU make and do not override the
1239 compile targets) or in the kernel config (via "makeoptions
1241 When WITH_CTF was specified there before this was silently ignored,
1242 so make sure that WITH_CTF is not used in places which could lead
1243 to unwanted behavior.
1246 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
1247 to allow 32-bit compatibility on non-x86 platforms. All kernel
1248 configurations on amd64 and ia64 platforms using these options must
1249 be modified accordingly.
1252 The utmp user accounting database has been replaced with utmpx,
1253 the user accounting interface standardized by POSIX.
1254 Unfortunately the semantics of utmp and utmpx don't match,
1255 making it practically impossible to support both interfaces.
1256 The user accounting database is used by tools like finger(1),
1257 last(1), talk(1), w(1) and ac(8).
1259 All applications in the base system use utmpx. This means only
1260 local binaries (e.g. from the ports tree) may still use these
1261 utmp database files. These applications must be rebuilt to make
1264 After the system has been upgraded, it is safe to remove the old
1265 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*),
1266 assuming their contents is of no importance anymore. Old wtmp
1267 databases can only be used by last(1) and ac(8) after they have
1268 been converted to the new format using wtmpcvt(1).
1271 Introduce the kernel thread "deadlock resolver" (which can be enabled
1272 via the DEADLKRES option, see NOTES for more details) and the
1273 sleepq_type() function for sleepqueues.
1276 The rc.firewall and rc.firewall6 were unified, and
1277 rc.firewall6 and rc.d/ip6fw were removed.
1278 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
1279 variables are obsoleted. Instead, the following new rc
1280 variables are added to rc.d/ipfw:
1282 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
1283 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
1284 firewall_simple_onet_ipv6, firewall_trusted_ipv6
1286 The meanings correspond to the relevant IPv4 variables.
1292 The default terminal emulation for syscons(4) has been changed
1293 from cons25 to xterm on all platforms except pc98. This means
1294 that the /etc/ttys file needs to be updated to ensure correct
1295 operation of applications on the console.
1297 The terminal emulation style can be toggled per window by using
1298 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration
1299 options can be used to change the compile-time default back to
1302 To prevent graphical artifacts, make sure the TERM environment
1303 variable is set to match the terminal emulation that is being
1304 performed by syscons(4).
1307 The layout of the structure ieee80211req_scan_result has changed.
1308 Applications that require wireless scan results (e.g. ifconfig(8))
1309 from net80211 need to be recompiled.
1311 Applications such as wpa_supplicant(8) may require a full world
1312 build without using NO_CLEAN in order to get synchronized with the
1316 The iwn(4) driver has been updated to support the 5000 and 5150 series.
1317 There's one kernel module for each firmware. Adding "device iwnfw"
1318 to the kernel configuration file means including all three firmware
1319 images inside the kernel. If you want to include just the one for
1320 your wireless card, use the devices iwn4965fw, iwn5000fw or
1324 The rc.d/network_ipv6, IPv6 configuration script has been integrated
1325 into rc.d/netif. The changes are the following:
1327 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF
1328 for IPv4. For aliases, $ifconfig_IF_aliasN should be used.
1329 Note that both variables need the "inet6" keyword at the head.
1331 Do not set $ipv6_network_interfaces manually if you do not
1332 understand what you are doing. It is not needed in most cases.
1334 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but
1337 2. $ipv6_enable is obsolete. Use $ipv6_prefer and
1338 "inet6 accept_rtadv" keyword in ifconfig(8) instead.
1340 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and
1341 all configured interfaces have "inet6 accept_rtadv" in the
1342 $ifconfig_IF_ipv6. These are for backward compatibility.
1344 3. A new variable $ipv6_prefer has been added. If NO, IPv6
1345 functionality of interfaces with no corresponding
1346 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag,
1347 and the default address selection policy of ip6addrctl(8)
1348 is the IPv4-preferred one (see rc.d/ip6addrctl for more details).
1349 Note that if you want to configure IPv6 functionality on the
1350 disabled interfaces after boot, first you need to clear the flag by
1351 using ifconfig(8) like:
1353 ifconfig em0 inet6 -ifdisabled
1355 If YES, the default address selection policy is set as
1358 The default value of $ipv6_prefer is NO.
1360 4. If your system need to receive Router Advertisement messages,
1361 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8)
1362 scripts automatically invoke rtsol(8) when the interface becomes
1363 UP. The Router Advertisement messages are used for SLAAC
1364 (State-Less Address AutoConfiguration).
1367 802.11s D3.03 support was committed. This is incompatible with the
1368 previous code, which was based on D3.0.
1371 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value
1372 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to
1373 control whether accepting Router Advertisement messages or not.
1374 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and
1375 a sysctl variable net.inet6.ip6.auto_linklocal is its default value.
1376 The ifconfig(8) utility now supports these flags.
1379 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
1380 mount(8) and -a option for df(1) to see them.
1383 The old tunable hw.bus.devctl_disable has been superseded by
1384 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be
1385 replaced by hw.bus.devctl_queue=0. The default for this new tunable
1389 Remove the option STOP_NMI. The default action is now to use NMI only
1390 for KDB via the newly introduced function stop_cpus_hard() and
1391 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64.
1394 The stable/8 branch created in subversion. This corresponds to the
1395 RELENG_8 branch in CVS.
1398 Bump the shared library version numbers for all libraries that do not
1399 use symbol versioning as part of the 8.0-RELEASE cycle. Bump
1400 __FreeBSD_version to 800105.
1403 Due to changes in the implementation of virtual network stack support,
1404 all network-related kernel modules must be recompiled. As this change
1405 breaks the ABI, bump __FreeBSD_version to 800104.
1408 The TOE interface to the TCP syncache has been modified to remove
1409 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack.
1410 The cxgb driver is the only TOE consumer affected by this change, and
1411 needs to be recompiled along with the kernel. As this change breaks
1412 the ABI, bump __FreeBSD_version to 800103.
1415 Padding has been added to struct tcpcb, sackhint and tcpstat in
1416 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
1417 maintaining the ABI. However, this change breaks the ABI, so bump
1418 __FreeBSD_version to 800102. User space tools that rely on the size of
1419 any of these structs (e.g. sockstat) need to be recompiled.
1422 The NFS_LEGACYRPC option has been removed along with the old kernel
1423 RPC implementation that this option selected. Kernel configurations
1424 may need to be adjusted.
1427 The network interface device nodes at /dev/net/<interface> have been
1428 removed. All ioctl operations can be performed the normal way using
1429 routing sockets. The kqueue functionality can generally be replaced
1430 with routing sockets.
1433 The documentation from the FreeBSD Documentation Project (Handbook,
1434 FAQ, etc.) is now installed via packages by sysinstall(8) and under
1435 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc.
1438 The ABI of various structures related to the SYSV IPC API have been
1439 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel
1440 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to
1444 Layout of struct vnet has changed as routing related variables were
1445 moved to their own Vimage module. Modules need to be recompiled. Bump
1446 __FreeBSD_version to 800099.
1449 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024
1450 respectively. As long as no more than 16 groups per process are used,
1451 no changes should be visible. When more than 16 groups are used, old
1452 binaries may fail if they call getgroups() or getgrouplist() with
1453 statically sized storage. Recompiling will work around this, but
1454 applications should be modified to use dynamically allocated storage
1455 for group arrays as POSIX.1-2008 does not cap an implementation's
1456 number of supported groups at NGROUPS_MAX+1 as previous versions did.
1458 NFS and portalfs mounts may also be affected as the list of groups is
1459 truncated to 16. Users of NFS who use more than 16 groups, should
1460 take care that negative group permissions are not used on the exported
1461 file systems as they will not be reliable unless a GSSAPI based
1462 authentication method is used.
1465 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This
1466 option compiles in the support for adaptive spinning for lockmgrs
1467 which want to enable it. The lockinit() function now accepts the flag
1468 LK_ADAPTIVE in order to make the lock object subject to adaptive
1469 spinning when both held in write and read mode.
1472 The layout of the structure returned by IEEE80211_IOC_STA_INFO has
1473 changed. User applications that use this ioctl need to be rebuilt.
1476 The layout of struct thread has changed. Kernel and modules need to
1480 The layout of structs ifnet, domain, protosw and vnet_net has changed.
1481 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097.
1484 window(1) has been removed from the base system. It can now be
1485 installed from ports. The port is called misc/window.
1488 The way we are storing and accessing `routing table' entries has
1489 changed. Programs reading the FIB, like netstat, need to be
1493 A new netisr implementation has been added for FreeBSD 8. Network
1494 file system modules, such as igmp, ipdivert, and others, should be
1496 Bump __FreeBSD_version to 800096.
1499 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no
1503 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
1504 Bump __FreeBSD_version to 800094.
1507 Add mnt_xflag field to 'struct mount'. File system modules need to be
1509 Bump __FreeBSD_version to 800093.
1512 The compiling option ADAPTIVE_SX has been retired while it has been
1513 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
1514 The KPI for sx_init_flags() changes as accepting flags:
1515 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has
1516 been introduced in order to handle the reversed logic.
1517 Bump __FreeBSD_version to 800092.
1520 Add support for hierarchical jails. Remove global securelevel.
1521 Bump __FreeBSD_version to 800091.
1524 The layout of struct vnet_net has changed, therefore modules
1526 Bump __FreeBSD_version to 800090.
1529 The newly imported zic(8) produces a new format in the output. Please
1530 run tzsetup(8) to install the newly created data to /etc/localtime.
1533 The sysctl tree for the usb stack has renamed from hw.usb2.* to
1534 hw.usb.* and is now consistent again with previous releases.
1537 802.11 monitor mode support was revised and driver api's were changed.
1538 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead
1539 of DLT_IEEE802_11. No user-visible data structures were changed but
1540 applications that use DLT_IEEE802_11 may require changes.
1541 Bump __FreeBSD_version to 800088.
1544 The layout of the following structs has changed: sysctl_oid,
1545 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
1546 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
1547 panics may be experienced. World rebuild is required for
1548 correctly checking networking state from userland.
1549 Bump __FreeBSD_version to 800085.
1552 MLDv2 and Source-Specific Multicast (SSM) have been merged
1553 to the IPv6 stack. VIMAGE hooks are in but not yet used.
1554 The implementation of SSM within FreeBSD's IPv6 stack closely
1555 follows the IPv4 implementation.
1557 For kernel developers:
1559 * The most important changes are that the ip6_output() and
1560 ip6_input() paths no longer take the IN6_MULTI_LOCK,
1561 and this lock has been downgraded to a non-recursive mutex.
1563 * As with the changes to the IPv4 stack to support SSM, filtering
1564 of inbound multicast traffic must now be performed by transport
1565 protocols within the IPv6 stack. This does not apply to TCP and
1566 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
1568 * The KPIs used by IPv6 multicast are similar to those used by
1569 the IPv4 stack, with the following differences:
1570 * im6o_mc_filter() is analogous to imo_multicast_filter().
1571 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
1572 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
1573 * IN6_LOOKUP_MULTI() has been deprecated and removed.
1574 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
1575 for MLDv1 have an additional 'timer' argument which is used to
1576 jitter the initial membership report for the solicited-node
1577 multicast membership on-link.
1578 * This is not strictly needed for MLDv2, which already jitters
1579 its report transmissions. However, the 'timer' argument is
1580 preserved in case MLDv1 is active on the interface.
1582 * The KAME linked-list based IPv6 membership implementation has
1583 been refactored to use a vector similar to that used by the IPv4
1585 Code which maintains a list of its own multicast memberships
1586 internally, e.g. carp, has been updated to reflect the new
1589 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
1590 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
1591 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
1592 implementation constraint which needs to be addressed in HEAD.
1594 For application developers:
1596 * The changes are broadly similar to those made for the IPv4
1599 * The use of IPv4 and IPv6 multicast socket options on the same
1600 socket, using mapped addresses, HAS NOT been tested or supported.
1602 * There are a number of issues with the implementation of various
1603 IPv6 multicast APIs which need to be resolved in the API surface
1604 before the implementation is fully compatible with KAME userland
1605 use, and these are mostly to do with interface index treatment.
1607 * The literature available discusses the use of either the delta / ASM
1608 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
1609 using setsourcefilter(3)/getsourcefilter(3). For more information
1610 please refer to RFC 3768, 'Socket Interface Extensions for
1611 Multicast Source Filters'.
1613 * Applications which use the published RFC 3678 APIs should be fine.
1615 For systems administrators:
1617 * The mtest(8) utility has been refactored to support IPv6, in
1618 addition to IPv4. Interface addresses are no longer accepted
1619 as arguments, their names must be used instead. The utility
1620 will map the interface name to its first IPv4 address as
1621 returned by getifaddrs(3).
1623 * The ifmcstat(8) utility has also been updated to print the MLDv2
1624 endpoint state and source filter lists via sysctl(3).
1626 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
1627 loopback of IPv6 multicast datagrams by default; it defaults to 1
1628 to preserve the existing behaviour. Disabling multicast loopback is
1629 recommended for optimal system performance.
1631 * The IPv6 MROUTING code has been changed to examine this sysctl
1632 instead of attempting to perform a group lookup before looping
1633 back forwarded datagrams.
1635 Bump __FreeBSD_version to 800084.
1638 Implement low-level Bluetooth HCI API.
1639 Bump __FreeBSD_version to 800083.
1642 The layout of struct malloc_type, used by modules to register new
1643 memory allocation types, has changed. Most modules will need to
1644 be rebuilt or panics may be experienced.
1645 Bump __FreeBSD_version to 800081.
1648 Anticipate overflowing inp_flags - add inp_flags2.
1649 This changes most offsets in inpcb, so checking v4 connection
1650 state will require a world rebuild.
1651 Bump __FreeBSD_version to 800080.
1654 Add an llentry to struct route and struct route_in6. Modules
1655 embedding a struct route will need to be recompiled.
1656 Bump __FreeBSD_version to 800079.
1659 The size of rt_metrics_lite and by extension rtentry has changed.
1660 Networking administration apps will need to be recompiled.
1661 The route command now supports show as an alias for get, weighting
1662 of routes, sticky and nostick flags to alter the behavior of stateful
1664 Bump __FreeBSD_version to 800078.
1667 Do not use Giant for kbdmux(4) locking. This is wrong and
1668 apparently causing more problems than it solves. This will
1669 re-open the issue where interrupt handlers may race with
1670 kbdmux(4) in polling mode. Typical symptoms include (but
1671 not limited to) duplicated and/or missing characters when
1672 low level console functions (such as gets) are used while
1673 interrupts are enabled (for example geli password prompt,
1674 mountroot prompt etc.). Disabling kbdmux(4) may help.
1677 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
1678 kernel modules referencing any of the above need to be recompiled.
1679 Bump __FreeBSD_version to 800075.
1682 GEOM_PART has become the default partition slicer for storage devices,
1683 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
1684 introduces some changes:
1686 MSDOS/EBR: the devices created from MSDOS extended partition entries
1687 (EBR) can be named differently than with GEOM_MBR and are now symlinks
1688 to devices with offset-based names. fstabs may need to be modified.
1690 BSD: the "geometry does not match label" warning is harmless in most
1691 cases but it points to problems in file system misalignment with
1692 disk geometry. The "c" partition is now implicit, covers the whole
1693 top-level drive and cannot be (mis)used by users.
1695 General: Kernel dumps are now not allowed to be written to devices
1696 whose partition types indicate they are meant to be used for file
1697 systems (or, in case of MSDOS partitions, as something else than
1700 Most of these changes date approximately from 200812.
1703 The uscanner(4) driver has been removed from the kernel. This follows
1704 Linux removing theirs in 2.6 and making libusb the default interface
1705 (supported by sane).
1708 The multicast forwarding code has been cleaned up. netstat(1)
1709 only relies on KVM now for printing bandwidth upcall meters.
1710 The IPv4 and IPv6 modules are split into ip_mroute_mod and
1711 ip6_mroute_mod respectively. The config(5) options for statically
1712 compiling this code remain the same, i.e. 'options MROUTING'.
1715 Support for the IFF_NEEDSGIANT network interface flag has been
1716 removed, which means that non-MPSAFE network device drivers are no
1717 longer supported. In particular, if_ar, if_sr, and network device
1718 drivers from the old (legacy) USB stack can no longer be built or
1722 POSIX.1 Native Language Support (NLS) has been enabled in libc and
1723 a bunch of new language catalog files have also been added.
1724 This means that some common libc messages are now localized and
1725 they depend on the LC_MESSAGES environmental variable.
1728 The k8temp(4) driver has been renamed to amdtemp(4) since
1729 support for Family 10 and Family 11 CPU families was added.
1732 IGMPv3 and Source-Specific Multicast (SSM) have been merged
1733 to the IPv4 stack. VIMAGE hooks are in but not yet used.
1735 For kernel developers, the most important changes are that the
1736 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
1737 and this lock has been downgraded to a non-recursive mutex.
1739 Transport protocols (UDP, Raw IP) are now responsible for filtering
1740 inbound multicast traffic according to group membership and source
1741 filters. The imo_multicast_filter() KPI exists for this purpose.
1742 Transports which do not use multicast (SCTP, TCP) already reject
1743 multicast by default. Forwarding and receive performance may improve
1744 as a mutex acquisition is no longer needed in the ip_input()
1745 low-level input path. in_addmulti() and in_delmulti() are shimmed
1746 to new KPIs which exist to support SSM in-kernel.
1748 For application developers, it is recommended that loopback of
1749 multicast datagrams be disabled for best performance, as this
1750 will still cause the lock to be taken for each looped-back
1751 datagram transmission. The net.inet.ip.mcast.loop sysctl may
1752 be tuned to 0 to disable loopback by default; it defaults to 1
1753 to preserve the existing behaviour.
1755 For systems administrators, to obtain best performance with
1756 multicast reception and multiple groups, it is always recommended
1757 that a card with a suitably precise hash filter is used. Hash
1758 collisions will still result in the lock being taken within the
1759 transport protocol input path to check group membership.
1761 If deploying FreeBSD in an environment with IGMP snooping switches,
1762 it is recommended that the net.inet.igmp.sendlocal sysctl remain
1763 enabled; this forces 224.0.0.0/24 group membership to be announced
1766 The size of 'struct igmpstat' has changed; netstat needs to be
1767 recompiled to reflect this.
1768 Bump __FreeBSD_version to 800070.
1771 libusb20.so.1 is now installed as libusb.so.1 and the ports system
1772 updated to use it. This requires a buildworld/installworld in order to
1773 update the library and dependencies (usbconfig, etc). Its advisable to
1774 rebuild all ports which uses libusb. More specific directions are given
1775 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
1776 libusb are no longer required and can be removed.
1779 A workaround is committed to allow the creation of System V shared
1780 memory segment of size > 2 GB on the 64-bit architectures.
1781 Due to a limitation of the existing ABI, the shm_segsz member
1782 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
1783 wrong for large segments. Note that limits must be explicitly
1784 raised to allow such segments to be created.
1787 The layout of struct ifnet has changed, requiring a rebuild of all
1788 network device driver modules.
1791 The /dev handling for the new USB stack has changed, a
1792 buildworld/installworld is required for libusb20.
1795 The new USB2 stack has now been permanently moved in and all kernel and
1796 module names reverted to their previous values (eg, usb, ehci, ohci,
1797 ums, ...). The old usb stack can be compiled in by prefixing the name
1798 with the letter 'o', the old usb modules have been removed.
1799 Updating entry 20090216 for xorg and 20090215 for libmap may still
1803 The rc.conf(5) option if_up_delay has been renamed to
1804 defaultroute_delay to better reflect its purpose. If you have
1805 customized this setting in /etc/rc.conf you need to update it to
1809 xorg 7.4 wants to configure its input devices via hald which does not
1810 yet work with USB2. If the keyboard/mouse does not work in xorg then
1812 Option "AllowEmptyInput" "off"
1813 to your ServerLayout section. This will cause X to use the configured
1814 kbd and mouse sections from your xorg.conf.
1817 The GENERIC kernels for all architectures now default to the new USB2
1818 stack. No kernel config options or code have been removed so if a
1819 problem arises please report it and optionally revert to the old USB
1820 stack. If you are loading USB kernel modules or have a custom kernel
1821 that includes GENERIC then ensure that usb names are also changed over,
1822 eg uftdi -> usb2_serial_ftdi.
1824 Older programs linked against the ports libusb 0.1 need to be
1825 redirected to the new stack's libusb20. /etc/libmap.conf can
1827 # Map old usb library to new one for usb2 stack
1828 libusb-0.1.so.8 libusb20.so.1
1831 All USB ethernet devices now attach as interfaces under the name ueN
1832 (eg. ue0). This is to provide a predictable name as vendors often
1833 change usb chipsets in a product without notice.
1836 The ichsmb(4) driver has been changed to require SMBus slave
1837 addresses be left-justified (xxxxxxx0b) rather than right-justified.
1838 All of the other SMBus controller drivers require left-justified
1839 slave addresses, so this change makes all the drivers provide the
1843 INET6 statistics (struct ip6stat) was updated.
1844 netstat(1) needs to be recompiled.
1847 NTFS has been removed from GENERIC kernel on amd64 to match
1848 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
1849 will load ntfs.ko module automatically when NTFS support is
1850 actually needed, unless ntfs.ko is not installed or security
1851 level prohibits loading kernel modules. If either is the case,
1852 "options NTFS" has to be added into kernel config.
1855 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
1856 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
1857 800061. User space tools that rely on the size of struct tcpcb in
1858 tcp_var.h (e.g. sockstat) need to be recompiled.
1861 ng_tty(4) module updated to match the new TTY subsystem.
1862 Due to API change, user-level applications must be updated.
1863 New API support added to mpd5 CVS and expected to be present
1864 in next mpd5.3 release.
1867 With __FreeBSD_version 800060 the makefs tool is part of
1868 the base system (it was a port).
1871 The afdata and ifnet locks have been changed from mutexes to
1872 rwlocks, network modules will need to be re-compiled.
1875 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
1876 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
1877 The new code reduced struct rtentry{} by 16 bytes on 32-bit
1878 architecture and 40 bytes on 64-bit architecture. The userland
1879 applications "arp" and "ndp" have been updated accordingly.
1880 The output from "netstat -r" shows only routing entries and
1881 none of the L2 information.
1884 __FreeBSD_version 800057 marks the switchover from the
1885 binary ath hal to source code. Users must add the line:
1887 options AH_SUPPORT_AR5416
1889 to their kernel config files when specifying:
1893 The ath_hal module no longer exists; the code is now compiled
1894 together with the driver in the ath module. It is now
1895 possible to tailor chip support (i.e. reduce the set of chips
1896 and thereby the code size); consult ath_hal(4) for details.
1899 __FreeBSD_version 800054 adds memory barriers to
1900 <machine/atomic.h>, new interfaces to ifnet to facilitate
1901 multiple hardware transmit queues for cards that support
1902 them, and a lock-less ring-buffer implementation to
1903 enable drivers to more efficiently manage queueing of
1907 A new version of ZFS (version 13) has been merged to -HEAD.
1908 This version has zpool attribute "listsnapshots" off by
1909 default, which means "zfs list" does not show snapshots,
1910 and is the same as Solaris behavior.
1913 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
1916 The uhci, ohci, ehci and slhci USB Host controller drivers have
1917 been put into separate modules. If you load the usb module
1918 separately through loader.conf you will need to load the
1919 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
1920 controller add the following to loader.conf:
1926 The ABI used by the PMC toolset has changed. Please keep
1927 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
1931 atapci kernel module now includes only generic PCI ATA
1932 driver. AHCI driver moved to ataahci kernel module.
1933 All vendor-specific code moved into separate kernel modules:
1934 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
1935 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
1936 atamarvell, atamicron, atanational, atanetcell, atanvidia,
1937 atapromise, ataserverworks, atasiliconimage, atasis, atavia
1940 The TTY subsystem of the kernel has been replaced by a new
1941 implementation, which provides better scalability and an
1942 improved driver model. Most common drivers have been migrated to
1943 the new TTY subsystem, while others have not. The following
1944 drivers have not yet been ported to the new TTY layer:
1947 cy, digi, rc, rp, sio
1953 ng_h4, ng_tty, ppp, sl, snp
1955 Adding these drivers to your kernel configuration file shall
1956 cause compilation to fail.
1959 ntpd has been upgraded to 4.2.4p5.
1962 OpenSSH has been upgraded to 5.1p1.
1964 For many years, FreeBSD's version of OpenSSH preferred DSA
1965 over RSA for host and user authentication keys. With this
1966 upgrade, we've switched to the vendor's default of RSA over
1967 DSA. This may cause upgraded clients to warn about unknown
1968 host keys even for previously known hosts. Users should
1969 follow the usual procedure for verifying host keys before
1970 accepting the RSA key.
1972 This can be circumvented by setting the "HostKeyAlgorithms"
1973 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
1976 Please note that the sequence of keys offered for
1977 authentication has been changed as well. You may want to
1978 specify IdentityFile in a different order to revert this
1982 The sio(4) driver has been removed from the i386 and amd64
1983 kernel configuration files. This means uart(4) is now the
1984 default serial port driver on those platforms as well.
1986 To prevent collisions with the sio(4) driver, the uart(4) driver
1987 uses different names for its device nodes. This means the
1988 onboard serial port will now most likely be called "ttyu0"
1989 instead of "ttyd0". You may need to reconfigure applications to
1990 use the new device names.
1992 When using the serial port as a boot console, be sure to update
1993 /boot/device.hints and /etc/ttys before booting the new kernel.
1994 If you forget to do so, you can still manually specify the hints
1995 at the loader prompt:
1997 set hint.uart.0.at="isa"
1998 set hint.uart.0.port="0x3F8"
1999 set hint.uart.0.flags="0x10"
2000 set hint.uart.0.irq="4"
2004 The gpt(8) utility has been removed. Use gpart(8) to partition
2008 The version that Linuxulator emulates was changed from 2.4.2
2009 to 2.6.16. If you experience any problems with Linux binaries
2010 please try to set sysctl compat.linux.osrelease to 2.4.2 and
2011 if it fixes the problem contact emulation mailing list.
2014 ISDN4BSD (I4B) was removed from the src tree. You may need to
2015 update a your kernel configuration and remove relevant entries.
2018 I have checked in code to support multiple routing tables.
2019 See the man pages setfib(1) and setfib(2).
2020 This is a hopefully backwards compatible version,
2021 but to make use of it you need to compile your kernel
2022 with options ROUTETABLES=2 (or more up to 16).
2025 The 802.11 wireless support was redone to enable multi-bss
2026 operation on devices that are capable. The underlying device
2027 is no longer used directly but instead wlanX devices are
2028 cloned with ifconfig. This requires changes to rc.conf files.
2029 For example, change:
2030 ifconfig_ath0="WPA DHCP"
2033 ifconfig_wlan0="WPA DHCP"
2034 see rc.conf(5) for more details. In addition, mergemaster of
2035 /etc/rc.d is highly recommended. Simultaneous update of userland
2036 and kernel wouldn't hurt either.
2038 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
2039 modules were merged into the base wlan module. All references
2040 to these modules (e.g. in kernel config files) must be removed.
2043 psm(4) has gained write(2) support in native operation level.
2044 Arbitrary commands can be written to /dev/psm%d and status can
2045 be read back from it. Therefore, an application is responsible
2046 for status validation and error recovery. It is a no-op in
2047 other operation levels.
2050 Support for KSE threading has been removed from the kernel. To
2051 run legacy applications linked against KSE libmap.conf may
2052 be used. The following libmap.conf may be used to ensure
2053 compatibility with any prior release:
2055 libpthread.so.1 libthr.so.1
2056 libpthread.so.2 libthr.so.2
2057 libkse.so.3 libthr.so.3
2060 The layout of struct vmspace has changed. This affects libkvm
2061 and any executables that link against libkvm and use the
2062 kvm_getprocs() function. In particular, but not exclusively,
2063 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
2064 The effects are minimal, but it's advisable to upgrade world
2068 The latest em driver no longer has support in it for the
2069 82575 adapter, this is now moved to the igb driver. The
2070 split was done to make new features that are incompatible
2071 with older hardware easier to do.
2074 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
2075 likewise the kernel option is now GEOM_LINUX_LVM.
2078 The default NFS mount mode has changed from UDP to TCP for
2079 increased reliability. If you rely on (insecurely) NFS
2080 mounting across a firewall you may need to update your
2084 Belatedly note the addition of m_collapse for compacting
2088 The fts(3) structures have been changed to use adequate
2089 integer types for their members and so to be able to cope
2090 with huge file trees. The old fts(3) ABI is preserved
2091 through symbol versioning in libc, so third-party binaries
2092 using fts(3) should still work, although they will not take
2093 advantage of the extended types. At the same time, some
2094 third-party software might fail to build after this change
2095 due to unportable assumptions made in its source code about
2096 fts(3) structure members. Such software should be fixed
2097 by its vendor or, in the worst case, in the ports tree.
2098 FreeBSD_version 800015 marks this change for the unlikely
2099 case that a portable fix is impossible.
2102 To upgrade to -current after this date, you must be running
2103 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
2104 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
2107 The ADAPTIVE_GIANT kernel option has been retired because its
2108 functionality is the default now.
2111 The AT keyboard emulation of sunkbd(4) has been turned on
2112 by default. In order to make the special symbols of the Sun
2113 keyboards driven by sunkbd(4) work under X these now have
2114 to be configured the same way as Sun USB keyboards driven
2115 by ukbd(4) (which also does AT keyboard emulation), f.e.:
2117 Option "XkbLayout" "us"
2118 Option "XkbRules" "xorg"
2119 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
2122 It has been decided that it is desirable to provide ABI
2123 backwards compatibility to the FreeBSD 4/5/6 versions of the
2124 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
2125 broken with the introduction of PCI domain support (see the
2126 20070930 entry). Unfortunately, this required the ABI of
2127 PCIOCGETCONF to be broken again in order to be able to
2128 provide backwards compatibility to the old version of that
2129 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
2130 again. As for prominent ports this affects neither pciutils
2131 nor xorg-server this time, the hal port needs to be rebuilt
2135 The misnamed kthread_create() and friends have been renamed
2136 to kproc_create() etc. Many of the callers already
2137 used kproc_start()..
2138 I will return kthread_create() and friends in a while
2139 with implementations that actually create threads, not procs.
2140 Renaming corresponds with version 800002.
2149 Avoid using make -j when upgrading. While generally safe, there are
2150 sometimes problems using -j to upgrade. If your upgrade fails with
2151 -j, please try again without -j. From time to time in the past there
2152 have been problems using -j with buildworld and/or installworld. This
2153 is especially true when upgrading between "distant" versions (eg one
2154 that cross a major release boundary or several minor releases, or when
2155 several months have passed on the -current branch).
2157 Sometimes, obscure build problems are the result of environment
2158 poisoning. This can happen because the make utility reads its
2159 environment when searching for values for global variables. To run
2160 your build attempts in an "environmental clean room", prefix all make
2161 commands with 'env -i '. See the env(1) manual page for more details.
2163 When upgrading from one major version to another it is generally best
2164 to upgrade to the latest code in the currently installed branch first,
2165 then do an upgrade to the new branch. This is the best-tested upgrade
2166 path, and has the highest probability of being successful. Please try
2167 this approach before reporting problems with a major version upgrade.
2169 When upgrading a live system, having a root shell around before
2170 installing anything can help undo problems. Not having a root shell
2171 around can lead to problems if pam has changed too much from your
2172 starting point to allow continued authentication after the upgrade.
2176 When upgrading the boot ZFS pool to a new version, always follow
2179 1.) recompile and reinstall the ZFS boot loader and boot block
2180 (this is part of "make buildworld" and "make installworld")
2182 2.) update the ZFS boot block on your boot drive
2184 The following example updates the ZFS boot block on the first
2185 partition (freebsd-boot) of a GPT partitioned drive ad0:
2186 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
2188 Non-boot pools do not need these updates.
2192 If you are updating from a prior version of FreeBSD (even one just
2193 a few days old), you should follow this procedure. It is the most
2194 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
2196 make kernel-toolchain
2197 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
2198 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
2200 To test a kernel once
2201 ---------------------
2202 If you just want to boot a kernel once (because you are not sure
2203 if it works, or if you want to boot a known bad kernel to provide
2204 debugging information) run
2205 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
2206 nextboot -k testkernel
2208 To just build a kernel when you know that it won't mess you up
2209 --------------------------------------------------------------
2210 This assumes you are already running a CURRENT system. Replace
2211 ${arch} with the architecture of your machine (e.g. "i386",
2212 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
2214 cd src/sys/${arch}/conf
2215 config KERNEL_NAME_HERE
2216 cd ../compile/KERNEL_NAME_HERE
2221 If this fails, go to the "To build a kernel" section.
2223 To rebuild everything and install it on the current system.
2224 -----------------------------------------------------------
2225 # Note: sometimes if you are running current you gotta do more than
2226 # is listed here if you are upgrading from a really old current.
2228 <make sure you have good level 0 dumps>
2230 make kernel KERNCONF=YOUR_KERNEL_HERE
2232 <reboot in single user> [3]
2239 To cross-install current onto a separate partition
2240 --------------------------------------------------
2241 # In this approach we use a separate partition to hold
2242 # current's root, 'usr', and 'var' directories. A partition
2243 # holding "/", "/usr" and "/var" should be about 2GB in
2246 <make sure you have good level 0 dumps>
2249 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2250 <maybe newfs current's root partition>
2251 <mount current's root partition on directory ${CURRENT_ROOT}>
2252 make installworld DESTDIR=${CURRENT_ROOT}
2253 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
2254 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
2255 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
2256 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
2257 <reboot into current>
2258 <do a "native" rebuild/install as described in the previous section>
2259 <maybe install compatibility libraries from ports/misc/compat*>
2263 To upgrade in-place from stable to current
2264 ----------------------------------------------
2265 <make sure you have good level 0 dumps>
2267 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
2269 <reboot in single user> [3]
2276 Make sure that you've read the UPDATING file to understand the
2277 tweaks to various things you need. At this point in the life
2278 cycle of current, things change often and you are on your own
2279 to cope. The defaults can also change, so please read ALL of
2280 the UPDATING entries.
2282 Also, if you are tracking -current, you must be subscribed to
2283 freebsd-current@freebsd.org. Make sure that before you update
2284 your sources that you have read and understood all the recent
2285 messages there. If in doubt, please track -stable which has
2286 much fewer pitfalls.
2288 [1] If you have third party modules, such as vmware, you
2289 should disable them at this point so they don't crash your
2292 [3] From the bootblocks, boot -s, and then do
2297 adjkerntz -i # if CMOS is wall time
2298 Also, when doing a major release upgrade, it is required that
2299 you boot into single user mode to do the installworld.
2301 [4] Note: This step is non-optional. Failure to do this step
2302 can result in a significant reduction in the functionality of the
2303 system. Attempting to do it by hand is not recommended and those
2304 that pursue this avenue should read this file carefully, as well
2305 as the archives of freebsd-current and freebsd-hackers mailing lists
2306 for potential gotchas. The -U option is also useful to consider.
2307 See mergemaster(8) for more information.
2309 [5] Usually this step is a noop. However, from time to time
2310 you may need to do this if you get unknown user in the following
2311 step. It never hurts to do it all the time. You may need to
2312 install a new mergemaster (cd src/usr.sbin/mergemaster && make
2313 install) after the buildworld before this step if you last updated
2314 from current before 20130425 or from -stable before 20130430.
2316 [6] This only deletes old files and directories. Old libraries
2317 can be deleted by "make delete-old-libs", but you have to make
2318 sure that no program is using those libraries anymore.
2320 [8] In order to have a kernel that can run the 4.x binaries needed to
2321 do an installworld, you must include the COMPAT_FREEBSD4 option in
2322 your kernel. Failure to do so may leave you with a system that is
2323 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is
2324 required to run the 5.x binaries on more recent kernels. And so on
2325 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7.
2327 Make sure that you merge any new devices from GENERIC since the
2328 last time you updated your kernel config file.
2330 [9] When checking out sources, you must include the -P flag to have
2331 cvs prune empty directories.
2333 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
2334 "?=" instead of the "=" assignment operator, so that buildworld can
2335 override the CPUTYPE if it needs to.
2337 MAKEOBJDIRPREFIX must be defined in an environment variable, and
2338 not on the command line, or in /etc/make.conf. buildworld will
2339 warn if it is improperly defined.
2342 This file contains a list, in reverse chronological order, of major
2343 breakages in tracking -current. It is not guaranteed to be a complete
2344 list of such breakages, and only contains entries since October 10, 2007.
2345 If you need to see UPDATING entries from before that date, you will need
2346 to fetch an UPDATING file from an older FreeBSD release.
2348 Copyright information:
2350 Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
2352 Redistribution, publication, translation and use, with or without
2353 modification, in full or in part, in any form or format of this
2354 document are permitted without further permission from the author.
2356 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2357 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2358 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2359 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2360 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2361 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2362 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2363 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2364 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2365 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2366 POSSIBILITY OF SUCH DAMAGE.
2368 Contact Warner Losh if you have any questions about your use of