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 20150429 p32 FreeBSD-SA-16:16.ntp
21 Fix multiple vulnerabilities of ntp.
23 20160316 p31 FreeBSD-SA-16:14.openssh-xauth
24 FreeBSD-SA-16:15.sysarch
25 FreeBSD-EN-16:04.hyperv
27 Fix OpenSSH xauth(1) command injection. [SA-16:14]
28 Fix incorrect argument validation in sysarch(2). [SA-16:15]
29 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04]
31 20160303 p30 FreeBSD-SA-16:12.openssl
33 Fix multiple vulnerabilities of OpenSSL.
35 20160130 p29 FreeBSD-SA-16:11.openssl
37 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11]
39 20160127 p28 FreeBSD-SA-16:09.ntp
40 FreeBSD-SA-16:10.linux
42 Fix multiple vulnerabilities of ntp. [SA-16:09]
44 Fix Linux compatibility layer issetugid(2) system call
45 vulnerability. [SA-16:10]
47 20160114 p27 FreeBSD-SA-16:07.openssh
49 Fix OpenSSH client information leak. [SA-16:07]
51 20160114 p26 FreeBSD-EN-16:02.pf
52 FreeBSD-EN-16:03.yplib
55 FreeBSD-SA-16:03.linux
56 FreeBSD-SA-16:04.linux
58 FreeBSD-SA-16:06.bsnmpd
60 Fix pf(4) generating bad TCP checksums. [EN-16:02]
61 Fix infinite loop in YP/NIS client library. [EN-16:03]
62 Fix remote denial of service in SCTP. [SA-16:01]
63 Update NTP to 4.2.8p5. [SA-16:02]
64 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03]
65 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04]
66 Fix crash in TCP MD5 signatures. [SA-16:05]
67 Fix insecure default permissions for snmpd.config. [SA-16:06]
69 20151205 p25 FreeBSD-SA-15:26.openssl
71 Fix multiple OpenSSL vulnerabilities. [SA-15:26]
73 20151104 p24 FreeBSD-SA-15:25.ntp [revised]
74 FreeBSD-EN-15:19.kqueue
77 Fix regression in ntpd(8) lacking support for RAWDCF reference
78 clock in 10.1-RELEASE-p23. [SA-15:25.ntp]
80 Fix kqueue write events never fired for files greater 2GB. [EN-15:19]
82 Fix applications exiting due to segmentation violation on a correct
83 memory address. [EN-15:20]
85 20151026: p23 FreeBSD-SA-15:25.ntp
87 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4.
89 The configuration file syntax has been changed, thus mergemaster
90 run is recommended. Now the "kod" parameter requires "limited"
91 parameter. If the ntp.conf is not updated, the ntpd will run
92 successfully, but with KoD disabled.
94 20151002: p22 FreeBSD-SA-15:24.rpcbind [revised]
95 Revised patch to address a regression that prevents NIS from working.
97 20150929: p21 FreeBSD-SA-15:24.rpcbind
99 Fix rpcbind(8) remote denial of service. [SA-15:24]
101 20150916: p20 FreeBSD-EN-15:18.pkg
103 Implement pubkey support for pkg(7) bootstrap. [EN-15:18]
105 20150825: p19 FreeBSD-SA-15:21.amd64
106 FreeBSD-SA-15:22.openssh
107 FreeBSD-EN-15:14.ixgbe
110 Fix local privilege escalation in IRET handler. [SA-15:21]
112 Fix OpenSSH multiple vulnerabilities. [SA-15:22]
114 Disabled ixgbe(4) flow-director support. [EN-15:14]
116 Fix insufficient check of unsupported pkg(7) signature methods.
119 20150818: p18 FreeBSD-SA-15:20.expat
121 Fix multiple integer overflows in expat (libbsdxml) XML parser.
124 20150805: p17 FreeBSD-SA-15:18.bsdpatch
125 FreeBSD-SA-15:19.routed
127 Fix patch(1) shell injection vulnerability via ed(1).
130 Fix routed remote denial of service vulnerability. [SA-15:19]
132 20150728: p16 FreeBSD-SA-15:14.bsdpatch
134 FreeBSD-SA-15:16.openssh
136 Fix patch(1) shell injection vulnerability. [SA-15:14]
138 Fix resource exhaustion in TCP reassembly. [SA-15:15]
140 Fix OpenSSH multiple vulnerabilities. [SA-15:16]
142 20150721: p15 FreeBSD-SA-15:13.tcp
144 Fix resource exhaustion due to sessions stuck in LAST_ACK state.
147 20150630: p14 FreeBSD-EN-15:08.sendmail [revised]
148 FreeBSD-EN-15:09.xlocale
149 FreeBSD-EN-15:10.iconv
151 Improvements to sendmail TLS/DH interoperability. [EN-15:08]
153 Fix inconsistency between locale and rune locale states.
156 Improved iconv(3) UTF-7 support. [EN-15:10]
158 20150618: p13 FreeBSD-EN-15:08.sendmail
159 Improvements to sendmail TLS/DH interoperability. [EN-15:08]
161 20150612: p12 FreeBSD-SA-15:10.openssl
162 Fix multiple vulnerabilities in OpenSSL. [SA-15:10]
164 20150609: p11 FreeBSD-EN-15:06.file
167 Updated base system file(1) to 5.22 to address multiple denial
168 of service issues. [EN-15:06]
170 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used.
173 20150513: p10 FreeBSD-EN-15:04.freebsd-update
176 Fix bug with freebsd-update(8) that does not ensure the previous
177 upgrade was completed. [EN-15:04]
179 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05]
181 20150407: p9 FreeBSD-SA-15:04.igmp [revised]
183 FreeBSD-SA-15:08.bsdinstall
184 FreeBSD-SA-15:09.ipv6
186 Improved patch for SA-15:04.igmp.
188 Fix multiple vulnerabilities of ntp. [SA-15:07]
190 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08]
192 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09]
195 Fix patch for SA-15:06.openssl.
197 20150319: p7 FreeBSD-SA-15:06.openssl
198 Fix multiple vulnerabilities in OpenSSL. [SA-15:06]
200 20150225: p6 FreeBSD-SA-15:04.igmp
202 FreeBSD-EN-15:02.openssl
203 FreeBSD-EN-15:03.freebsd-update
205 Fix integer overflow in IGMP protocol. [SA-15:04]
207 Fix vt(4) crash with improper ioctl parameters. [EN-15:01]
209 Updated base system OpenSSL to 1.0.1l. [EN-15:02]
211 Fix freebsd-update libraries update ordering issue. [EN-15:03]
213 20150127: p5 FreeBSD-SA-15:02.kmem
214 FreeBSD-SA-15:03.sctp
216 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure
217 vulnerability. [SA-15:02]
219 Fix SCTP stream reset vulnerability. [SA-15:03]
221 20150114: p4 FreeBSD-SA-15:01.openssl
222 Fix multiple vulnerabilities in OpenSSL. [SA-15:01]
224 20141223: p3 FreeBSD-SA-14:31.ntp
225 FreeBSD-EN-14:13.freebsd-update
227 Fix multiple vulnerabilities in NTP suite. [SA-14:31]
228 Fix directory deletion issue in freebsd-update. [EN-14:13]
230 20141217: p2 FreeBSD-SA-14:30.unbound
231 Fix unbound remote denial of service vulnerability.
233 20141210: p1 FreeBSD-SA-14:27.stdio
234 FreeBSD-SA-14:28.file
236 Fix buffer overflow in stdio. [SA-14:27]
238 Fix multiple vulnerabilities in file(1) and libmagic(3).
242 The ofwfb driver, used to provide a graphics console on PowerPC when
243 using vt(4), no longer allows mmap() of all of physical memory. This
244 will prevent Xorg on PowerPC with some ATI graphics cards from
245 initializing properly unless x11-servers/xorg-server is updated to
249 The libatf-c and libatf-c++ major versions were downgraded to 0 and
250 1 respectively to match the upstream numbers. They were out of
251 sync because, when they were originally added to FreeBSD, the
252 upstream versions were not respected. These libraries are private
253 and not yet built by default, so renumbering them should be a
254 non-issue. However, unclean source trees will yield broken test
255 programs once the operator executes "make delete-old-libs" after a
258 Additionally, the atf-sh binary was made private by moving it into
259 /usr/libexec/. Already-built shell test programs will keep the
260 path to the old binary so they will break after "make delete-old"
263 If you are using WITH_TESTS=yes (not the default), wipe the object
264 tree and rebuild from scratch to prevent spurious test failures.
265 This is only needed once: the misnumbered libraries and misplaced
266 binaries have been added to OptionalObsoleteFiles.inc so they will
267 be removed during a clean upgrade.
270 The ixgbe tunables now match their sysctl counterparts, for example:
271 hw.ixgbe.enable_aim => hw.ix.enable_aim
272 Anyone using ixgbe tunables should ensure they update /boot/loader.conf.
275 The NFSv4.1 server committed by r269398 changes the internal
276 function call interfaces used between the NFS and krpc modules.
277 As such, __FreeBSD_version was bumped.
280 The default unbound configuration has been modified to address
281 issues with reverse lookups on networks that use private
282 address ranges. If you use the local_unbound service, run
283 "service local_unbound setup" as root to regenerate your
284 configuration, then "service local_unbound reload" to load the
288 It is no longer necessary to include the dwarf version in your DEBUG
289 options in your kernel config file. The bug that required it to be
290 placed in the config file has bene fixed. DEBUG should now just
291 contain -g. The build system will automatically update things
292 to do the right thing.
295 Several ABI breaking changes were merged to CTL and new iSCSI code.
296 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and
297 iscsictl need to be rebuilt to work with a new kernel.
300 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
301 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
302 which differs from the behaviour controlled by this knob.)
305 On i386 and amd64 systems, the onifconsole flag is now set by default
306 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled
307 as a login TTY if it is set in the bootloader as an active kernel
308 console. No changes in behavior should result otherwise. To revert to
309 the previous behavior, set ttyu0 to "off" in /etc/ttys.
312 Clang and llvm have been upgraded to 3.4.1 release.
315 Clang and llvm have been upgraded to 3.4 release.
318 If a Makefile in a tests/ directory was auto-generating a Kyuafile
319 instead of providing an explicit one, this would prevent such
320 Makefile from providing its own Kyuafile in the future during
321 NO_CLEAN builds. This has been fixed in the Makefiles but manual
322 intervention is needed to clean an objdir if you use NO_CLEAN:
323 # find /usr/obj -name Kyuafile | xargs rm -f
326 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
327 capability mode support. Please note that enabling the feature in
328 kernel is still highly recommended.
331 OpenSSH is now built with sandbox support, and will use sandbox as
332 the default privilege separation method. This requires Capsicum
333 capability mode support in kernel.
336 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has
337 been deprecated and will not be part of FreeBSD 11.0 and later
338 releases. If you use this driver, please consider switching to
339 the nfe(4) driver instead.
345 The behavior of gss_pseudo_random() for the krb5 mechanism
346 has changed, for applications requesting a longer random string
347 than produced by the underlying enctype's pseudo-random() function.
348 In particular, the random string produced from a session key of
349 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
350 be different at the 17th octet and later, after this change.
351 The counter used in the PRF+ construction is now encoded as a
352 big-endian integer in accordance with RFC 4402.
353 __FreeBSD_version is bumped to 1000701.
356 The WITHOUT_ATF build knob has been removed and its functionality
357 has been subsumed into the more generic WITHOUT_TESTS. If you were
358 using the former to disable the build of the ATF libraries, you
359 should change your settings to use the latter.
362 The default version of mtree is nmtree which is obtained from
363 NetBSD. The output is generally the same, but may vary
364 slightly. If you found you need identical output adding
365 "-F freebsd9" to the command line should do the trick. For the
366 time being, the old mtree is available as fmtree.
369 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
370 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
371 1.1.4_8 and verify bsdyml not linked in, before running "make
373 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
375 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
378 The rc.d/jail script has been updated to support jail(8)
379 configuration file. The "jail_<jname>_*" rc.conf(5) variables
380 for per-jail configuration are automatically converted to
381 /var/run/jail.<jname>.conf before the jail(8) utility is invoked.
382 This is transparently backward compatible. See below about some
383 incompatibilities and rc.conf(5) manual page for more details.
385 These variables are now deprecated in favor of jail(8) configuration
386 file. One can use "rc.d/jail config <jname>" command to generate
387 a jail(8) configuration file in /var/run/jail.<jname>.conf without
388 running the jail(8) utility. The default pathname of the
389 configuration file is /etc/jail.conf and can be specified by
390 using $jail_conf or $jail_<jname>_conf variables.
392 Please note that jail_devfs_ruleset accepts an integer at
393 this moment. Please consider to rewrite the ruleset name
397 BIND has been removed from the base system. If all you need
398 is a local resolver, simply enable and start the local_unbound
399 service instead. Otherwise, several versions of BIND are
400 available in the ports tree. The dns/bind99 port is one example.
402 With this change, nslookup(1) and dig(1) are no longer in the base
403 system. Users should instead use host(1) and drill(1) which are
404 in the base system. Alternatively, nslookup and dig can
405 be obtained by installing the dns/bind-tools port.
408 With the addition of unbound(8), a new unbound user is now
409 required during installworld. "mergemaster -p" can be used to
410 add the user prior to installworld, as documented in the handbook.
413 OpenSSH is now built with DNSSEC support, and will by default
414 silently trust signed SSHFP records. This can be controlled with
415 the VerifyHostKeyDNS client configuration setting. DNSSEC support
416 can be disabled entirely with the WITHOUT_LDNS option in src.conf.
419 The GNU Compiler Collection and C++ standard library (libstdc++)
420 are no longer built by default on platforms where clang is the system
421 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX
425 The PROCDESC kernel option is now part of the GENERIC kernel
426 configuration and is required for the rwhod(8) to work.
427 If you are using custom kernel configuration, you should include
431 The API and ABI related to the Capsicum framework was modified
432 in backward incompatible way. The userland libraries and programs
433 have to be recompiled to work with the new kernel. This includes the
434 following libraries and programs, but the whole buildworld is
435 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl,
436 kdump, procstat, rwho, rwhod, uniq.
439 AES-NI intrinsic support has been added to gcc. The AES-NI module
440 has been updated to use this support. A new gcc is required to build
441 the aesni module on both i386 and amd64.
444 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices.
445 Thus "device padlock_rng" and "device rdrand_rng" should be
446 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG".
449 WITH_ICONV has been split into two feature sets. WITH_ICONV now
450 enables just the iconv* functionality and is now on by default.
451 WITH_LIBICONV_COMPAT enables the libiconv api and link time
452 compatability. Set WITHOUT_ICONV to build the old way.
453 If you have been using WITH_ICONV before, you will very likely
454 need to turn on WITH_LIBICONV_COMPAT.
457 INVARIANTS option now enables DEBUG for code with OpenSolaris and
458 Illumos origin, including ZFS. If you have INVARIANTS in your
459 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG
461 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS)
462 locks if WITNESS option was set. Because that generated a lot of
463 witness(9) reports and all of them were believed to be false
464 positives, this is no longer done. New option OPENSOLARIS_WITNESS
465 can be used to achieve the previous behavior.
468 Timer values in IPv6 data structures now use time_uptime instead
469 of time_second. Although this is not a user-visible functional
470 change, userland utilities which directly use them---ndp(8),
471 rtadvd(8), and rtsold(8) in the base system---need to be updated
475 find -delete can now delete the pathnames given as arguments,
476 instead of only files found below them or if the pathname did
477 not contain any slashes. Formerly, the following error message
480 find: -delete: <path>: relative path potentially not safe
482 Deleting the pathnames given as arguments can be prevented
483 without error messages using -mindepth 1 or by changing
484 directory and passing "." as argument to find. This works in the
485 old as well as the new version of find.
488 Behavior of devfs rules path matching has been changed.
489 Pattern is now always matched against fully qualified devfs
490 path and slash characters must be explicitly matched by
491 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs
492 subdirectories must be reviewed.
495 The default ARM ABI has changed to the ARM EABI. The old ABI is
496 incompatible with the ARM EABI and all programs and modules will
497 need to be rebuilt to work with a new kernel.
499 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set.
501 NOTE: Support for the old ABI will be removed in the future and
502 users are advised to upgrade.
505 pkg_install has been disconnected from the build if you really need it
506 you should add WITH_PKGTOOLS in your src.conf(5).
509 Most of network statistics structures were changed to be able
510 keep 64-bits counters. Thus all tools, that work with networking
511 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.)
514 Fix targets that run multiple make's to use && rather than ;
515 so that subsequent steps depend on success of previous.
517 NOTE: if building 'universe' with -j* on stable/8 or stable/9
518 it would be better to start the build using bmake, to avoid
519 overloading the machine.
522 Fix a bug that allowed a tracing process (e.g. gdb) to write
523 to a memory-mapped file in the traced process's address space
524 even if neither the traced process nor the tracing process had
525 write access to that file.
528 CVS has been removed from the base system. An exact copy
529 of the code is available from the devel/cvs port.
532 Some people report the following error after the switch to bmake:
534 make: illegal option -- J
535 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable]
537 *** [buildworld] Error code 2
539 this likely due to an old instance of make in
540 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE})
541 which src/Makefile will use that blindly, if it exists, so if
542 you see the above error:
544 rm -rf `make -V MAKEPATH`
549 Use bmake by default.
550 Whereas before one could choose to build with bmake via
551 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old
552 make. The goal is to remove these knobs for 10-RELEASE.
554 It is worth noting that bmake (like gmake) treats the command
555 line as the unit of failure, rather than statements within the
556 command line. Thus '(cd some/where && dosomething)' is safer
557 than 'cd some/where; dosomething'. The '()' allows consistent
558 behavior in parallel build.
561 Fix a bug that allows NFS clients to issue READDIR on files.
564 The WITHOUT_IDEA option has been removed because
565 the IDEA patent expired.
568 The sysctl which controls TRIM support under ZFS has been renamed
569 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been
573 The mergemaster command now uses the default MAKEOBJDIRPREFIX
574 rather than creating it's own in the temporary directory in
575 order allow access to bootstrapped versions of tools such as
576 install and mtree. When upgrading from version of FreeBSD where
577 the install command does not support -l, you will need to
578 install a new mergemaster command if mergemaster -p is required.
579 This can be accomplished with the command (cd src/usr.sbin/mergemaster
583 Legacy ATA stack, disabled and replaced by new CAM-based one since
584 FreeBSD 9.0, completely removed from the sources. Kernel modules
585 atadisk and atapi*, user-level tools atacontrol and burncd are
586 removed. Kernel option `options ATA_CAM` is now permanently enabled
590 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2)
591 and socketpair(2). Software, in particular Kerberos, may
592 automatically detect and use these during building. The resulting
593 binaries will not work on older kernels.
596 CTL_DISABLE has also been added to the sparc64 GENERIC (for further
597 information, see the respective 20130304 entry).
600 Recent commits to callout(9) changed the size of struct callout,
601 so the KBI is probably heavily disturbed. Also, some functions
602 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced
603 by macros. Every kernel module using it won't load, so rebuild
606 The ctl device has been re-enabled in GENERIC for i386 and amd64,
607 but does not initialize by default (because of the new CTL_DISABLE
608 option) to save memory. To re-enable it, remove the CTL_DISABLE
609 option from the kernel config file or set kern.cam.ctl.disable=0
610 in /boot/loader.conf.
613 The ctl device has been disabled in GENERIC for i386 and amd64.
614 This was done due to the extra memory being allocated at system
615 initialisation time by the ctl driver which was only used if
616 a CAM target device was created. This makes a FreeBSD system
617 unusable on 128MB or less of RAM.
620 A new compression method (lz4) has been merged to -HEAD. Please
621 refer to zpool-features(7) for more information.
623 Please refer to the "ZFS notes" section of this file for information
624 on upgrading boot ZFS pools.
627 A BSD-licensed patch(1) variant has been added and is installed
628 as bsdpatch, being the GNU version the default patch.
629 To inverse the logic and use the BSD-licensed one as default,
630 while having the GNU version installed as gnupatch, rebuild
631 and install world with the WITH_BSD_PATCH knob set.
634 Due to the use of the new -l option to install(1) during build
635 and install, you must take care not to directly set the INSTALL
636 make variable in your /etc/make.conf, /etc/src.conf, or on the
637 command line. If you wish to use the -C flag for all installs
638 you may be able to add INSTALL+=-C to /etc/make.conf or
642 The install(1) option -M has changed meaning and now takes an
643 argument that is a file or path to append logs to. In the
644 unlikely event that -M was the last option on the command line
645 and the command line contained at least two files and a target
646 directory the first file will have logs appended to it. The -M
647 option served little practical purpose in the last decade so its
648 use is expected to be extremely rare.
651 After switching to Clang as the default compiler some users of ZFS
652 on i386 systems started to experience stack overflow kernel panics.
653 Please consider using 'options KSTACK_PAGES=4' in such configurations.
656 GEOM_LABEL now mangles label names read from file system metadata.
657 Mangling affect labels containing spaces, non-printable characters,
658 '%' or '"'. Device names in /etc/fstab and other places may need to
662 By default, only the 10 most recent kernel dumps will be saved. To
663 restore the previous behaviour (no limit on the number of kernel dumps
664 stored in the dump directory) add the following line to /etc/rc.conf:
669 With the addition of auditdistd(8), a new auditdistd user is now
670 required during installworld. "mergemaster -p" can be used to
671 add the user prior to installworld, as documented in the handbook.
674 The sin6_scope_id member variable in struct sockaddr_in6 is now
675 filled by the kernel before passing the structure to the userland via
676 sysctl or routing socket. This means the KAME-specific embedded scope
677 id in sin6_addr.s6_addr[2] is always cleared in userland application.
678 This behavior can be controlled by net.inet6.ip6.deembed_scopeid.
679 __FreeBSD_version is bumped to 1000025.
682 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default.
683 This means that the world and kernel will be compiled with clang
684 and that clang will be installed as /usr/bin/cc, /usr/bin/c++,
685 and /usr/bin/cpp. To disable this behavior and revert to building
686 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions
687 of current may need to bootstrap WITHOUT_CLANG first if the clang
688 build fails (its compatibility window doesn't extend to the 9 stable
692 The IPFIREWALL_FORWARD kernel option has been removed. Its
693 functionality now turned on by default.
696 The ZERO_COPY_SOCKET kernel option has been removed and
697 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP.
698 NB: SOCKET_SEND_COW uses the VM page based copy-on-write
699 mechanism which is not safe and may result in kernel crashes.
700 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current
701 driver supports disposeable external page sized mbuf storage.
702 Proper replacements for both zero-copy mechanisms are under
703 consideration and will eventually lead to complete removal
704 of the two kernel options.
707 The IPv4 network stack has been converted to network byte
708 order. The following modules need to be recompiled together
709 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4),
710 pf(4), ipfw(4), ng_ipfw(4), stf(4).
713 Support for non-MPSAFE filesystems was removed from VFS. The
714 VFS_VERSION was bumped, all filesystem modules shall be
718 All the non-MPSAFE filesystems have been disconnected from
719 the build. The full list includes: codafs, hpfs, ntfs, nwfs,
720 portalfs, smbfs, xfs.
723 The interface cloning API and ABI has changed. The following
724 modules need to be recompiled together with kernel:
725 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4),
726 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4),
727 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4).
730 The sdhci driver was split in two parts: sdhci (generic SD Host
731 Controller logic) and sdhci_pci (actual hardware driver).
732 No kernel config modifications are required, but if you
733 load sdhc as a module you must switch to sdhci_pci instead.
736 Import the FUSE kernel and userland support into base system.
739 The GNU sort(1) program has been removed since the BSD-licensed
740 sort(1) has been the default for quite some time and no serious
741 problems have been reported. The corresponding WITH_GNU_SORT
745 The pfil(9) API/ABI for AF_INET family has been changed. Packet
746 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled
750 The net80211(4) ABI has been changed to allow for improved driver
751 PS-POLL and power-save support. All wireless drivers need to be
752 recompiled to work with the new kernel.
755 The random(4) support for the VIA hardware random number
756 generator (`PADLOCK') is no longer enabled unconditionally.
757 Add the padlock_rng device in the custom kernel config if
758 needed. The GENERIC kernels on i386 and amd64 do include the
759 device, so the change only affects the custom kernel
763 The pf(4) packet filter ABI has been changed. pfctl(8) and
764 snmp_pf module need to be recompiled to work with new kernel.
767 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged
768 to -HEAD. Pools that have empty_bpobj in active state can not be
769 imported read-write with ZFS implementations that do not support
770 this feature. For more information read the zpool-features(5)
774 The sparc64 ZFS loader has been changed to no longer try to auto-
775 detect ZFS providers based on diskN aliases but now requires these
776 to be explicitly listed in the OFW boot-device environment variable.
779 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring
780 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are
781 configuration changes. Make sure to merge /etc/ssl/openssl.cnf.
784 The following sysctls and tunables have been renamed for consistency
785 with other variables:
786 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered
787 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered
790 The sort utility has been replaced with BSD sort. For now, GNU sort
791 is also available as "gnusort" or the default can be set back to
792 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be
793 installed as "bsdsort".
796 A new version of ZFS (pool version 5000) has been merged to -HEAD.
797 Starting with this version the old system of ZFS pool versioning
798 is superseded by "feature flags". This concept enables forward
799 compatibility against certain future changes in functionality of ZFS
800 pools. The first read-only compatible "feature flag" for ZFS pools
801 is named "com.delphix:async_destroy". For more information
802 read the new zpool-features(5) manual page.
803 Please refer to the "ZFS notes" section of this file for information
804 on upgrading boot ZFS pools.
807 The malloc(3) implementation embedded in libc now uses sources imported
808 as contrib/jemalloc. The most disruptive API change is to
809 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf,
810 delete it prior to installworld, and optionally re-create it using the
811 new format after rebooting. See malloc.conf(5) for details
812 (specifically the TUNING section and the "opt.*" entries in the MALLCTL
816 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb
817 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is
818 now spelled mips. This is to aid compatibility with third-party
819 software that expects this naming scheme in uname(3). Little-endian
820 settings are unchanged. If you are updating a big-endian mips64 machine
821 from before this change, you may need to set MACHINE_ARCH=mips64 in
822 your environment before the new build system will recognize your machine.
825 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported
829 Now unix domain sockets behave "as expected" on nullfs(5). Previously
830 nullfs(5) did not pass through all behaviours to the underlying layer,
831 as a result if we bound to a socket on the lower layer we could connect
832 only to the lower path; if we bound to the upper layer we could connect
833 only to the upper path. The new behavior is one can connect to both the
834 lower and the upper paths regardless what layer path one binds to.
837 The getifaddrs upgrade path broken with 20111215 has been restored.
838 If you have upgraded in between 20111215 and 20120209 you need to
839 recompile libc again with your kernel. You still need to recompile
840 world to be able to configure CARP but this restriction already
844 The set_rcvar() function has been removed from /etc/rc.subr. All
845 base and ports rc.d scripts have been updated, so if you have a
846 port installed with a script in /usr/local/etc/rc.d you can either
847 hand-edit the rcvar= line, or reinstall the port.
849 An easy way to handle the mass-update of /etc/rc.d:
850 rm /etc/rc.d/* && mergemaster -i
853 panic(9) now stops other CPUs in the SMP systems, disables interrupts
854 on the current CPU and prevents other threads from running.
855 This behavior can be reverted using the kern.stop_scheduler_on_panic
857 The new behavior can be incompatible with kern.sync_on_panic.
860 The carp(4) facility has been changed significantly. Configuration
861 of the CARP protocol via ifconfig(8) has changed, as well as format
862 of CARP events submitted to devd(8) has changed. See manual pages
863 for more information. The arpbalance feature of carp(4) is currently
864 not supported anymore.
866 Size of struct in_aliasreq, struct in6_aliasreq has changed. User
867 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8),
868 need to be recompiled.
871 The acpi_wmi(4) status device /dev/wmistat has been renamed to
875 The option VFS_ALLOW_NONMPSAFE option has been added in order to
876 explicitely support non-MPSAFE filesystems.
877 It is on by default for all supported platform at this present
881 The broken amd(4) driver has been replaced with esp(4) in the amd64,
882 i386 and pc98 GENERIC kernel configuration files.
885 sysinstall has been removed
888 The stable/9 branch created in subversion. This corresponds to the
889 RELENG_9 branch in CVS.
892 This commit modifies vfs_register() so that it uses a hash
893 calculation to set vfc_typenum, which is enabled by default.
894 The first time a system is booted after this change, the
895 vfc_typenum values will change for all file systems. The
896 main effect of this is a change to the NFS server file handles
897 for file systems that use vfc_typenum in their fsid, such as ZFS.
898 It will, however, prevent vfc_typenum from changing when file
899 systems are loaded in a different order for subsequent reboots.
900 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf
901 until you are ready to remount all NFS clients after a reboot.
904 Bump the shared library version numbers for libraries that
905 do not use symbol versioning, have changed the ABI compared
906 to stable/8 and which shared library version was not bumped.
907 Done as part of 9.0-RELEASE cycle.
910 During the merge of Capsicum features, the fget(9) KPI was modified.
911 This may require the rebuilding of out-of-tree device drivers --
912 issues have been reported specifically with the nVidia device driver.
913 __FreeBSD_version is bumped to 900041.
915 Also, there is a period between 20110811 and 20110814 where the
916 special devices /dev/{stdin,stdout,stderr} did not work correctly.
917 Building world from a kernel during that window may not work.
920 The packet filter (pf) code has been updated to OpenBSD 4.5.
921 You need to update userland tools to be in sync with kernel.
922 This update breaks backward compatibility with earlier pfsync(4)
923 versions. Care must be taken when updating redundant firewall setups.
926 The following sysctls and tunables are retired on x86 platforms:
928 machdep.hlt_logical_cpus
929 The following sysctl is retired:
930 machdep.hyperthreading_allowed
931 The sysctls were supposed to provide a way to dynamically offline and
932 online selected CPUs on x86 platforms, but the implementation has not
933 been reliable especially with SCHED_ULE scheduler.
934 machdep.hyperthreading_allowed tunable is still available to ignore
935 hyperthreading CPUs at OS level.
936 Individual CPUs can be disabled using hint.lapic.X.disabled tunable,
937 where X is an APIC ID of a CPU. Be advised, though, that disabling
938 CPUs in non-uniform fashion will result in non-uniform topology and
939 may lead to sub-optimal system performance with SCHED_ULE, which is
943 cpumask_t type is retired and cpuset_t is used in order to describe
947 Changes to ifconfig(8) for dynamic address family detection mandate
948 that you are running a kernel of 20110525 or later. Make sure to
949 follow the update procedure to boot a new kernel before installing
953 Support for sun4v architecture is officially dropped
956 Several KPI breaking changes have been committed to the mii(4) layer,
957 the PHY drivers and consequently some Ethernet drivers using mii(4).
958 This means that miibus.ko and the modules of the affected Ethernet
959 drivers need to be recompiled.
961 Note to kernel developers: Given that the OUI bit reversion problem
962 was fixed as part of these changes all mii(4) commits related to OUIs,
963 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific
964 handling, no longer can be merged verbatim to stable/8 and previous
968 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci'
969 into their kernel configurations along with 'device pci'.
972 The default NFS client is now the new NFS client, so fstype "newnfs"
973 is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
974 Although mounts via fstype "nfs" will usually work without userland
975 changes, it is recommended that the mount(8) and mount_nfs(8)
976 commands be rebuilt from sources and that a link to mount_nfs called
977 mount_oldnfs be created. The new client is compiled into the
978 kernel with "options NFSCL" and this is needed for diskless root
979 file systems. The GENERIC kernel configs have been changed to use
980 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER.
981 To use the regular/old client, you can "mount -t oldnfs ...". For
982 a diskless root file system, you must also include a line like:
984 vfs.root.mountfrom="oldnfs:"
986 in the boot/loader.conf on the root fs on the NFS server to make
987 a diskless root fs use the old client.
990 The GENERIC kernels for all architectures now default to the new
991 CAM-based ATA stack. It means that all legacy ATA drivers were
992 removed and replaced by respective CAM drivers. If you are using
993 ATA device names in /etc/fstab or other places, make sure to update
994 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY,
995 where 'Y's are the sequential numbers starting from zero for each type
996 in order of detection, unless configured otherwise with tunables,
997 see cam(4)). There will be symbolic links created in /dev/ to map
998 old adX devices to the respective adaY. They should provide basic
999 compatibility for file systems mounting in most cases, but they do
1000 not support old user-level APIs and do not have respective providers
1001 in GEOM. Consider using updated management tools with new device names.
1003 It is possible to load devices ahci, ata, siis and mvs as modules,
1004 but option ATA_CAM should remain in kernel configuration to make ata
1005 module work as CAM driver supporting legacy ATA controllers. Device ata
1006 still can be used in modular fashion (atacore + ...). Modules atadisk
1007 and atapi* are not used and won't affect operation in ATA_CAM mode.
1008 Note that to use CAM-based ATA kernel should include CAM devices
1009 scbus, pass, da (or explicitly ada), cd and optionally others. All of
1010 them are parts of the cam module.
1012 ataraid(4) functionality is now supported by the RAID GEOM class.
1013 To use it you can load geom_raid kernel module and use graid(8) tool
1014 for management. Instead of /dev/arX device names, use /dev/raid/rX.
1016 No kernel config options or code have been removed, so if a problem
1017 arises, please report it and optionally revert to the old ATA stack.
1018 In order to do it you can remove from the kernel config:
1023 , and instead add back:
1024 device atadisk # ATA disk drives
1025 device ataraid # ATA RAID drives
1026 device atapicd # ATAPI CDROM drives
1027 device atapifd # ATAPI floppy drives
1028 device atapist # ATAPI tape drives
1031 The default NFS server has been changed to the new server, which
1032 was referred to as the experimental server. If you need to switch
1033 back to the old NFS server, you must now put the "-o" option on
1034 both the mountd and nfsd commands. This can be done using the
1035 mountd_flags and nfs_server_flags rc.conf variables until an
1036 update to the rc scripts is committed, which is coming soon.
1039 The GNU Objective-C runtime library (libobjc), and other Objective-C
1040 related components have been removed from the base system. If you
1041 require an Objective-C library, please use one of the available ports.
1044 ath(4) has been split into bus- and device- modules. if_ath contains
1045 the HAL, the TX rate control and the network device code. if_ath_pci
1046 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb
1047 contains the AHB glue. Users need to load both if_ath_pci and if_ath
1048 in order to use ath on everything else.
1050 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only
1051 need to load if_ath and if_ath_pci for ath(4) operation.
1054 As part of the replacement of sysinstall, the process of building
1055 release media has changed significantly. For details, please re-read
1056 release(7), which has been updated to reflect the new build process.
1059 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This
1060 is the last available version under GPLv2. It brings a number of new
1061 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE
1062 4.1 and SSE 4.2), better support for powerpc64, a number of new
1063 directives, and lots of other small improvements. See the ChangeLog
1064 file in contrib/binutils for the full details.
1067 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868
1068 compliant, and will now use half of hash for authentication.
1069 This will break interoperability with all stacks (including all
1070 actual FreeBSD versions) who implement
1071 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for
1073 The only workaround with such peers is to use another HMAC
1074 algorithm for IPsec ("phase 2") authentication.
1077 Remove the uio_yield prototype and symbol. This function has
1078 been misnamed since it was introduced and should not be
1079 globally exposed with this name. The equivalent functionality
1080 is now available using kern_yield(curthread->td_user_pri).
1081 The function remains undocumented.
1084 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers,
1085 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking
1086 for scalar sysctls is defined but disabled. Code that needs
1087 UQUAD to pass the type checking that must compile on older
1088 systems where the define is not present can check against
1089 __FreeBSD_version >= 900030.
1091 The system dialog(1) has been replaced with a new version previously
1092 in ports as devel/cdialog. dialog(1) is mostly command-line compatible
1093 with the previous version, but the libdialog associated with it has
1094 a largely incompatible API. As such, the original version of libdialog
1095 will be kept temporarily as libodialog, until its base system consumers
1096 are replaced or updated. Bump __FreeBSD_version to 900030.
1099 If you are trying to run make universe on a -stable system, and you get
1100 the following warning:
1101 "Makefile", line 356: "Target architecture for i386/conf/GENERIC
1102 unknown. config(8) likely too old."
1103 or something similar to it, then you must upgrade your -stable system
1104 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in
1105 stable/8) or build the config from the latest stable/8 branch and
1106 install it on your system.
1108 Prior to this date, building a current universe on 8-stable system from
1109 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing
1110 error in the first kernel build phase. A new config on those old
1111 systems will fix that problem for older versions of -current.
1114 The TCP stack has been modified to allow Khelp modules to interact with
1115 it via helper hook points and store per-connection data in the TCP
1116 control block. Bump __FreeBSD_version to 900029. User space tools that
1117 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to
1121 Generic IEEE 802.3 annex 31B full duplex flow control support has been
1122 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along
1123 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted
1124 to take advantage of it instead of using custom implementations. This
1125 means that these drivers now no longer unconditionally advertise
1126 support for flow control but only do so if flow control is a selected
1127 media option. This was implemented in the generic support that way in
1128 order to allow flow control to be switched on and off via ifconfig(8)
1129 with the PHY specific default to typically off in order to protect
1130 from unwanted effects. Consequently, if you used flow control with
1131 one of the above mentioned drivers you now need to explicitly enable
1132 it, for example via:
1133 ifconfig bge0 media auto mediaopt flowcontrol
1135 Along with the above mentioned changes generic support for setting
1136 1000baseT master mode also has been added and brgphy(4), ciphy(4),
1137 e1000phy(4) as well as ip1000phy(4) have been converted to take
1138 advantage of it. This means that these drivers now no longer take the
1139 link0 parameter for selecting master mode but the master media option
1140 has to be used instead, for example like in the following:
1141 ifconfig bge0 media 1000baseT mediaopt full-duplex,master
1143 Selection of master mode now is also available with all other PHY
1144 drivers supporting 1000baseT.
1147 The TCP stack has received a significant update to add support for
1148 modularised congestion control and generally improve the clarity of
1149 congestion control decisions. Bump __FreeBSD_version to 900025. User
1150 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g.
1151 sockstat) need to be recompiled.
1154 The man(1) utility has been replaced by a new version that no longer
1155 uses /etc/manpath.config. Please consult man.conf(5) for how to
1156 migrate local entries to the new format.
1159 The copyright strings printed by login(1) and sshd(8) at the time of a
1160 new connection have been removed to follow other operating systems and
1164 A workaround for a fixed ld bug has been removed in kernel code,
1165 so make sure that your system ld is built from sources after
1166 revision 210245 from 2010-07-19 (r211583 if building head kernel
1167 on stable/8, r211584 for stable/7; both from 2010-08-21).
1168 A symptom of incorrect ld version is different addresses for
1169 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules.
1172 The $ipv6_prefer variable in rc.conf(5) has been split into
1173 $ip6addrctl_policy and $ipv6_activate_all_interfaces.
1175 The $ip6addrctl_policy is a variable to choose a pre-defined
1176 address selection policy set by ip6addrctl(8). A value
1177 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The
1180 The $ipv6_activate_all_interfaces specifies whether IFDISABLED
1181 flag (see an entry of 20090926) is set on an interface with no
1182 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for
1183 security reason. If you want IPv6 link-local address on all
1184 interfaces by default, set this to "YES".
1186 The old ipv6_prefer="YES" is equivalent to
1187 ipv6_activate_all_interfaces="YES" and
1188 ip6addrctl_policy="ipv6_prefer".
1191 DTrace has grown support for userland tracing. Due to this, DTrace is
1192 now i386 and amd64 only.
1193 dtruss(1) is now installed by default on those systems and a new
1194 kernel module is needed for userland tracing: fasttrap.
1195 No changes to your kernel config file are necessary to enable
1196 userland tracing, but you might consider adding 'STRIP=' and
1197 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want
1198 to have informative userland stack traces in DTrace (ustack).
1201 The acpi_aiboost(4) driver has been removed in favor of the new
1202 aibs(4) driver. You should update your kernel configuration file.
1205 BSD grep has been imported to the base system and it is built by
1206 default. It is completely BSD licensed, highly GNU-compatible, uses
1207 less memory than its GNU counterpart and has a small codebase.
1208 However, it is slower than its GNU counterpart, which is mostly
1209 noticeable for larger searches, for smaller ones it is measurable
1210 but not significant. The reason is complex, the most important factor
1211 is that we lack a modern and efficient regex library and GNU
1212 overcomes this by optimizing the searches internally. Future work
1213 on improving the regex performance is planned, for the meantime,
1214 users that need better performance, can build GNU grep instead by
1215 setting the WITH_GNU_GREP knob.
1218 Due to the import of powerpc64 support, all existing powerpc kernel
1219 configuration files must be updated with a machine directive like this:
1220 machine powerpc powerpc
1222 In addition, an updated config(8) is required to build powerpc kernels
1226 A new version of ZFS (version 15) has been merged to -HEAD.
1227 This version uses a python library for the following subcommands:
1228 zfs allow, zfs unallow, zfs groupspace, zfs userspace.
1229 For full functionality of these commands the following port must
1230 be installed: sysutils/py-zfs
1233 'vm_page's are now hashed by physical address to an array of mutexes.
1234 Currently this is only used to serialize access to hold_count. Over
1235 time the page queue mutex will be peeled away. This changes the size
1236 of pmap on every architecture. And requires all callers of vm_page_hold
1237 and vm_page_unhold to be updated.
1240 WITH_CTF can now be specified in src.conf (not recommended, there
1241 are some problems with static executables), make.conf (would also
1242 affect ports which do not use GNU make and do not override the
1243 compile targets) or in the kernel config (via "makeoptions
1245 When WITH_CTF was specified there before this was silently ignored,
1246 so make sure that WITH_CTF is not used in places which could lead
1247 to unwanted behavior.
1250 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
1251 to allow 32-bit compatibility on non-x86 platforms. All kernel
1252 configurations on amd64 and ia64 platforms using these options must
1253 be modified accordingly.
1256 The utmp user accounting database has been replaced with utmpx,
1257 the user accounting interface standardized by POSIX.
1258 Unfortunately the semantics of utmp and utmpx don't match,
1259 making it practically impossible to support both interfaces.
1260 The user accounting database is used by tools like finger(1),
1261 last(1), talk(1), w(1) and ac(8).
1263 All applications in the base system use utmpx. This means only
1264 local binaries (e.g. from the ports tree) may still use these
1265 utmp database files. These applications must be rebuilt to make
1268 After the system has been upgraded, it is safe to remove the old
1269 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*),
1270 assuming their contents is of no importance anymore. Old wtmp
1271 databases can only be used by last(1) and ac(8) after they have
1272 been converted to the new format using wtmpcvt(1).
1275 Introduce the kernel thread "deadlock resolver" (which can be enabled
1276 via the DEADLKRES option, see NOTES for more details) and the
1277 sleepq_type() function for sleepqueues.
1280 The rc.firewall and rc.firewall6 were unified, and
1281 rc.firewall6 and rc.d/ip6fw were removed.
1282 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
1283 variables are obsoleted. Instead, the following new rc
1284 variables are added to rc.d/ipfw:
1286 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
1287 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
1288 firewall_simple_onet_ipv6, firewall_trusted_ipv6
1290 The meanings correspond to the relevant IPv4 variables.
1296 The default terminal emulation for syscons(4) has been changed
1297 from cons25 to xterm on all platforms except pc98. This means
1298 that the /etc/ttys file needs to be updated to ensure correct
1299 operation of applications on the console.
1301 The terminal emulation style can be toggled per window by using
1302 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration
1303 options can be used to change the compile-time default back to
1306 To prevent graphical artifacts, make sure the TERM environment
1307 variable is set to match the terminal emulation that is being
1308 performed by syscons(4).
1311 The layout of the structure ieee80211req_scan_result has changed.
1312 Applications that require wireless scan results (e.g. ifconfig(8))
1313 from net80211 need to be recompiled.
1315 Applications such as wpa_supplicant(8) may require a full world
1316 build without using NO_CLEAN in order to get synchronized with the
1320 The iwn(4) driver has been updated to support the 5000 and 5150 series.
1321 There's one kernel module for each firmware. Adding "device iwnfw"
1322 to the kernel configuration file means including all three firmware
1323 images inside the kernel. If you want to include just the one for
1324 your wireless card, use the devices iwn4965fw, iwn5000fw or
1328 The rc.d/network_ipv6, IPv6 configuration script has been integrated
1329 into rc.d/netif. The changes are the following:
1331 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF
1332 for IPv4. For aliases, $ifconfig_IF_aliasN should be used.
1333 Note that both variables need the "inet6" keyword at the head.
1335 Do not set $ipv6_network_interfaces manually if you do not
1336 understand what you are doing. It is not needed in most cases.
1338 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but
1341 2. $ipv6_enable is obsolete. Use $ipv6_prefer and
1342 "inet6 accept_rtadv" keyword in ifconfig(8) instead.
1344 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and
1345 all configured interfaces have "inet6 accept_rtadv" in the
1346 $ifconfig_IF_ipv6. These are for backward compatibility.
1348 3. A new variable $ipv6_prefer has been added. If NO, IPv6
1349 functionality of interfaces with no corresponding
1350 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag,
1351 and the default address selection policy of ip6addrctl(8)
1352 is the IPv4-preferred one (see rc.d/ip6addrctl for more details).
1353 Note that if you want to configure IPv6 functionality on the
1354 disabled interfaces after boot, first you need to clear the flag by
1355 using ifconfig(8) like:
1357 ifconfig em0 inet6 -ifdisabled
1359 If YES, the default address selection policy is set as
1362 The default value of $ipv6_prefer is NO.
1364 4. If your system need to receive Router Advertisement messages,
1365 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8)
1366 scripts automatically invoke rtsol(8) when the interface becomes
1367 UP. The Router Advertisement messages are used for SLAAC
1368 (State-Less Address AutoConfiguration).
1371 802.11s D3.03 support was committed. This is incompatible with the
1372 previous code, which was based on D3.0.
1375 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value
1376 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to
1377 control whether accepting Router Advertisement messages or not.
1378 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and
1379 a sysctl variable net.inet6.ip6.auto_linklocal is its default value.
1380 The ifconfig(8) utility now supports these flags.
1383 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
1384 mount(8) and -a option for df(1) to see them.
1387 The old tunable hw.bus.devctl_disable has been superseded by
1388 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be
1389 replaced by hw.bus.devctl_queue=0. The default for this new tunable
1393 Remove the option STOP_NMI. The default action is now to use NMI only
1394 for KDB via the newly introduced function stop_cpus_hard() and
1395 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64.
1398 The stable/8 branch created in subversion. This corresponds to the
1399 RELENG_8 branch in CVS.
1402 Bump the shared library version numbers for all libraries that do not
1403 use symbol versioning as part of the 8.0-RELEASE cycle. Bump
1404 __FreeBSD_version to 800105.
1407 Due to changes in the implementation of virtual network stack support,
1408 all network-related kernel modules must be recompiled. As this change
1409 breaks the ABI, bump __FreeBSD_version to 800104.
1412 The TOE interface to the TCP syncache has been modified to remove
1413 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack.
1414 The cxgb driver is the only TOE consumer affected by this change, and
1415 needs to be recompiled along with the kernel. As this change breaks
1416 the ABI, bump __FreeBSD_version to 800103.
1419 Padding has been added to struct tcpcb, sackhint and tcpstat in
1420 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
1421 maintaining the ABI. However, this change breaks the ABI, so bump
1422 __FreeBSD_version to 800102. User space tools that rely on the size of
1423 any of these structs (e.g. sockstat) need to be recompiled.
1426 The NFS_LEGACYRPC option has been removed along with the old kernel
1427 RPC implementation that this option selected. Kernel configurations
1428 may need to be adjusted.
1431 The network interface device nodes at /dev/net/<interface> have been
1432 removed. All ioctl operations can be performed the normal way using
1433 routing sockets. The kqueue functionality can generally be replaced
1434 with routing sockets.
1437 The documentation from the FreeBSD Documentation Project (Handbook,
1438 FAQ, etc.) is now installed via packages by sysinstall(8) and under
1439 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc.
1442 The ABI of various structures related to the SYSV IPC API have been
1443 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel
1444 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to
1448 Layout of struct vnet has changed as routing related variables were
1449 moved to their own Vimage module. Modules need to be recompiled. Bump
1450 __FreeBSD_version to 800099.
1453 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024
1454 respectively. As long as no more than 16 groups per process are used,
1455 no changes should be visible. When more than 16 groups are used, old
1456 binaries may fail if they call getgroups() or getgrouplist() with
1457 statically sized storage. Recompiling will work around this, but
1458 applications should be modified to use dynamically allocated storage
1459 for group arrays as POSIX.1-2008 does not cap an implementation's
1460 number of supported groups at NGROUPS_MAX+1 as previous versions did.
1462 NFS and portalfs mounts may also be affected as the list of groups is
1463 truncated to 16. Users of NFS who use more than 16 groups, should
1464 take care that negative group permissions are not used on the exported
1465 file systems as they will not be reliable unless a GSSAPI based
1466 authentication method is used.
1469 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This
1470 option compiles in the support for adaptive spinning for lockmgrs
1471 which want to enable it. The lockinit() function now accepts the flag
1472 LK_ADAPTIVE in order to make the lock object subject to adaptive
1473 spinning when both held in write and read mode.
1476 The layout of the structure returned by IEEE80211_IOC_STA_INFO has
1477 changed. User applications that use this ioctl need to be rebuilt.
1480 The layout of struct thread has changed. Kernel and modules need to
1484 The layout of structs ifnet, domain, protosw and vnet_net has changed.
1485 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097.
1488 window(1) has been removed from the base system. It can now be
1489 installed from ports. The port is called misc/window.
1492 The way we are storing and accessing `routing table' entries has
1493 changed. Programs reading the FIB, like netstat, need to be
1497 A new netisr implementation has been added for FreeBSD 8. Network
1498 file system modules, such as igmp, ipdivert, and others, should be
1500 Bump __FreeBSD_version to 800096.
1503 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no
1507 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
1508 Bump __FreeBSD_version to 800094.
1511 Add mnt_xflag field to 'struct mount'. File system modules need to be
1513 Bump __FreeBSD_version to 800093.
1516 The compiling option ADAPTIVE_SX has been retired while it has been
1517 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
1518 The KPI for sx_init_flags() changes as accepting flags:
1519 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has
1520 been introduced in order to handle the reversed logic.
1521 Bump __FreeBSD_version to 800092.
1524 Add support for hierarchical jails. Remove global securelevel.
1525 Bump __FreeBSD_version to 800091.
1528 The layout of struct vnet_net has changed, therefore modules
1530 Bump __FreeBSD_version to 800090.
1533 The newly imported zic(8) produces a new format in the output. Please
1534 run tzsetup(8) to install the newly created data to /etc/localtime.
1537 The sysctl tree for the usb stack has renamed from hw.usb2.* to
1538 hw.usb.* and is now consistent again with previous releases.
1541 802.11 monitor mode support was revised and driver api's were changed.
1542 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead
1543 of DLT_IEEE802_11. No user-visible data structures were changed but
1544 applications that use DLT_IEEE802_11 may require changes.
1545 Bump __FreeBSD_version to 800088.
1548 The layout of the following structs has changed: sysctl_oid,
1549 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
1550 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
1551 panics may be experienced. World rebuild is required for
1552 correctly checking networking state from userland.
1553 Bump __FreeBSD_version to 800085.
1556 MLDv2 and Source-Specific Multicast (SSM) have been merged
1557 to the IPv6 stack. VIMAGE hooks are in but not yet used.
1558 The implementation of SSM within FreeBSD's IPv6 stack closely
1559 follows the IPv4 implementation.
1561 For kernel developers:
1563 * The most important changes are that the ip6_output() and
1564 ip6_input() paths no longer take the IN6_MULTI_LOCK,
1565 and this lock has been downgraded to a non-recursive mutex.
1567 * As with the changes to the IPv4 stack to support SSM, filtering
1568 of inbound multicast traffic must now be performed by transport
1569 protocols within the IPv6 stack. This does not apply to TCP and
1570 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
1572 * The KPIs used by IPv6 multicast are similar to those used by
1573 the IPv4 stack, with the following differences:
1574 * im6o_mc_filter() is analogous to imo_multicast_filter().
1575 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
1576 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
1577 * IN6_LOOKUP_MULTI() has been deprecated and removed.
1578 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
1579 for MLDv1 have an additional 'timer' argument which is used to
1580 jitter the initial membership report for the solicited-node
1581 multicast membership on-link.
1582 * This is not strictly needed for MLDv2, which already jitters
1583 its report transmissions. However, the 'timer' argument is
1584 preserved in case MLDv1 is active on the interface.
1586 * The KAME linked-list based IPv6 membership implementation has
1587 been refactored to use a vector similar to that used by the IPv4
1589 Code which maintains a list of its own multicast memberships
1590 internally, e.g. carp, has been updated to reflect the new
1593 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
1594 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
1595 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
1596 implementation constraint which needs to be addressed in HEAD.
1598 For application developers:
1600 * The changes are broadly similar to those made for the IPv4
1603 * The use of IPv4 and IPv6 multicast socket options on the same
1604 socket, using mapped addresses, HAS NOT been tested or supported.
1606 * There are a number of issues with the implementation of various
1607 IPv6 multicast APIs which need to be resolved in the API surface
1608 before the implementation is fully compatible with KAME userland
1609 use, and these are mostly to do with interface index treatment.
1611 * The literature available discusses the use of either the delta / ASM
1612 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
1613 using setsourcefilter(3)/getsourcefilter(3). For more information
1614 please refer to RFC 3768, 'Socket Interface Extensions for
1615 Multicast Source Filters'.
1617 * Applications which use the published RFC 3678 APIs should be fine.
1619 For systems administrators:
1621 * The mtest(8) utility has been refactored to support IPv6, in
1622 addition to IPv4. Interface addresses are no longer accepted
1623 as arguments, their names must be used instead. The utility
1624 will map the interface name to its first IPv4 address as
1625 returned by getifaddrs(3).
1627 * The ifmcstat(8) utility has also been updated to print the MLDv2
1628 endpoint state and source filter lists via sysctl(3).
1630 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
1631 loopback of IPv6 multicast datagrams by default; it defaults to 1
1632 to preserve the existing behaviour. Disabling multicast loopback is
1633 recommended for optimal system performance.
1635 * The IPv6 MROUTING code has been changed to examine this sysctl
1636 instead of attempting to perform a group lookup before looping
1637 back forwarded datagrams.
1639 Bump __FreeBSD_version to 800084.
1642 Implement low-level Bluetooth HCI API.
1643 Bump __FreeBSD_version to 800083.
1646 The layout of struct malloc_type, used by modules to register new
1647 memory allocation types, has changed. Most modules will need to
1648 be rebuilt or panics may be experienced.
1649 Bump __FreeBSD_version to 800081.
1652 Anticipate overflowing inp_flags - add inp_flags2.
1653 This changes most offsets in inpcb, so checking v4 connection
1654 state will require a world rebuild.
1655 Bump __FreeBSD_version to 800080.
1658 Add an llentry to struct route and struct route_in6. Modules
1659 embedding a struct route will need to be recompiled.
1660 Bump __FreeBSD_version to 800079.
1663 The size of rt_metrics_lite and by extension rtentry has changed.
1664 Networking administration apps will need to be recompiled.
1665 The route command now supports show as an alias for get, weighting
1666 of routes, sticky and nostick flags to alter the behavior of stateful
1668 Bump __FreeBSD_version to 800078.
1671 Do not use Giant for kbdmux(4) locking. This is wrong and
1672 apparently causing more problems than it solves. This will
1673 re-open the issue where interrupt handlers may race with
1674 kbdmux(4) in polling mode. Typical symptoms include (but
1675 not limited to) duplicated and/or missing characters when
1676 low level console functions (such as gets) are used while
1677 interrupts are enabled (for example geli password prompt,
1678 mountroot prompt etc.). Disabling kbdmux(4) may help.
1681 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
1682 kernel modules referencing any of the above need to be recompiled.
1683 Bump __FreeBSD_version to 800075.
1686 GEOM_PART has become the default partition slicer for storage devices,
1687 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
1688 introduces some changes:
1690 MSDOS/EBR: the devices created from MSDOS extended partition entries
1691 (EBR) can be named differently than with GEOM_MBR and are now symlinks
1692 to devices with offset-based names. fstabs may need to be modified.
1694 BSD: the "geometry does not match label" warning is harmless in most
1695 cases but it points to problems in file system misalignment with
1696 disk geometry. The "c" partition is now implicit, covers the whole
1697 top-level drive and cannot be (mis)used by users.
1699 General: Kernel dumps are now not allowed to be written to devices
1700 whose partition types indicate they are meant to be used for file
1701 systems (or, in case of MSDOS partitions, as something else than
1704 Most of these changes date approximately from 200812.
1707 The uscanner(4) driver has been removed from the kernel. This follows
1708 Linux removing theirs in 2.6 and making libusb the default interface
1709 (supported by sane).
1712 The multicast forwarding code has been cleaned up. netstat(1)
1713 only relies on KVM now for printing bandwidth upcall meters.
1714 The IPv4 and IPv6 modules are split into ip_mroute_mod and
1715 ip6_mroute_mod respectively. The config(5) options for statically
1716 compiling this code remain the same, i.e. 'options MROUTING'.
1719 Support for the IFF_NEEDSGIANT network interface flag has been
1720 removed, which means that non-MPSAFE network device drivers are no
1721 longer supported. In particular, if_ar, if_sr, and network device
1722 drivers from the old (legacy) USB stack can no longer be built or
1726 POSIX.1 Native Language Support (NLS) has been enabled in libc and
1727 a bunch of new language catalog files have also been added.
1728 This means that some common libc messages are now localized and
1729 they depend on the LC_MESSAGES environmental variable.
1732 The k8temp(4) driver has been renamed to amdtemp(4) since
1733 support for Family 10 and Family 11 CPU families was added.
1736 IGMPv3 and Source-Specific Multicast (SSM) have been merged
1737 to the IPv4 stack. VIMAGE hooks are in but not yet used.
1739 For kernel developers, the most important changes are that the
1740 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
1741 and this lock has been downgraded to a non-recursive mutex.
1743 Transport protocols (UDP, Raw IP) are now responsible for filtering
1744 inbound multicast traffic according to group membership and source
1745 filters. The imo_multicast_filter() KPI exists for this purpose.
1746 Transports which do not use multicast (SCTP, TCP) already reject
1747 multicast by default. Forwarding and receive performance may improve
1748 as a mutex acquisition is no longer needed in the ip_input()
1749 low-level input path. in_addmulti() and in_delmulti() are shimmed
1750 to new KPIs which exist to support SSM in-kernel.
1752 For application developers, it is recommended that loopback of
1753 multicast datagrams be disabled for best performance, as this
1754 will still cause the lock to be taken for each looped-back
1755 datagram transmission. The net.inet.ip.mcast.loop sysctl may
1756 be tuned to 0 to disable loopback by default; it defaults to 1
1757 to preserve the existing behaviour.
1759 For systems administrators, to obtain best performance with
1760 multicast reception and multiple groups, it is always recommended
1761 that a card with a suitably precise hash filter is used. Hash
1762 collisions will still result in the lock being taken within the
1763 transport protocol input path to check group membership.
1765 If deploying FreeBSD in an environment with IGMP snooping switches,
1766 it is recommended that the net.inet.igmp.sendlocal sysctl remain
1767 enabled; this forces 224.0.0.0/24 group membership to be announced
1770 The size of 'struct igmpstat' has changed; netstat needs to be
1771 recompiled to reflect this.
1772 Bump __FreeBSD_version to 800070.
1775 libusb20.so.1 is now installed as libusb.so.1 and the ports system
1776 updated to use it. This requires a buildworld/installworld in order to
1777 update the library and dependencies (usbconfig, etc). Its advisable to
1778 rebuild all ports which uses libusb. More specific directions are given
1779 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
1780 libusb are no longer required and can be removed.
1783 A workaround is committed to allow the creation of System V shared
1784 memory segment of size > 2 GB on the 64-bit architectures.
1785 Due to a limitation of the existing ABI, the shm_segsz member
1786 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
1787 wrong for large segments. Note that limits must be explicitly
1788 raised to allow such segments to be created.
1791 The layout of struct ifnet has changed, requiring a rebuild of all
1792 network device driver modules.
1795 The /dev handling for the new USB stack has changed, a
1796 buildworld/installworld is required for libusb20.
1799 The new USB2 stack has now been permanently moved in and all kernel and
1800 module names reverted to their previous values (eg, usb, ehci, ohci,
1801 ums, ...). The old usb stack can be compiled in by prefixing the name
1802 with the letter 'o', the old usb modules have been removed.
1803 Updating entry 20090216 for xorg and 20090215 for libmap may still
1807 The rc.conf(5) option if_up_delay has been renamed to
1808 defaultroute_delay to better reflect its purpose. If you have
1809 customized this setting in /etc/rc.conf you need to update it to
1813 xorg 7.4 wants to configure its input devices via hald which does not
1814 yet work with USB2. If the keyboard/mouse does not work in xorg then
1816 Option "AllowEmptyInput" "off"
1817 to your ServerLayout section. This will cause X to use the configured
1818 kbd and mouse sections from your xorg.conf.
1821 The GENERIC kernels for all architectures now default to the new USB2
1822 stack. No kernel config options or code have been removed so if a
1823 problem arises please report it and optionally revert to the old USB
1824 stack. If you are loading USB kernel modules or have a custom kernel
1825 that includes GENERIC then ensure that usb names are also changed over,
1826 eg uftdi -> usb2_serial_ftdi.
1828 Older programs linked against the ports libusb 0.1 need to be
1829 redirected to the new stack's libusb20. /etc/libmap.conf can
1831 # Map old usb library to new one for usb2 stack
1832 libusb-0.1.so.8 libusb20.so.1
1835 All USB ethernet devices now attach as interfaces under the name ueN
1836 (eg. ue0). This is to provide a predictable name as vendors often
1837 change usb chipsets in a product without notice.
1840 The ichsmb(4) driver has been changed to require SMBus slave
1841 addresses be left-justified (xxxxxxx0b) rather than right-justified.
1842 All of the other SMBus controller drivers require left-justified
1843 slave addresses, so this change makes all the drivers provide the
1847 INET6 statistics (struct ip6stat) was updated.
1848 netstat(1) needs to be recompiled.
1851 NTFS has been removed from GENERIC kernel on amd64 to match
1852 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
1853 will load ntfs.ko module automatically when NTFS support is
1854 actually needed, unless ntfs.ko is not installed or security
1855 level prohibits loading kernel modules. If either is the case,
1856 "options NTFS" has to be added into kernel config.
1859 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
1860 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
1861 800061. User space tools that rely on the size of struct tcpcb in
1862 tcp_var.h (e.g. sockstat) need to be recompiled.
1865 ng_tty(4) module updated to match the new TTY subsystem.
1866 Due to API change, user-level applications must be updated.
1867 New API support added to mpd5 CVS and expected to be present
1868 in next mpd5.3 release.
1871 With __FreeBSD_version 800060 the makefs tool is part of
1872 the base system (it was a port).
1875 The afdata and ifnet locks have been changed from mutexes to
1876 rwlocks, network modules will need to be re-compiled.
1879 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
1880 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
1881 The new code reduced struct rtentry{} by 16 bytes on 32-bit
1882 architecture and 40 bytes on 64-bit architecture. The userland
1883 applications "arp" and "ndp" have been updated accordingly.
1884 The output from "netstat -r" shows only routing entries and
1885 none of the L2 information.
1888 __FreeBSD_version 800057 marks the switchover from the
1889 binary ath hal to source code. Users must add the line:
1891 options AH_SUPPORT_AR5416
1893 to their kernel config files when specifying:
1897 The ath_hal module no longer exists; the code is now compiled
1898 together with the driver in the ath module. It is now
1899 possible to tailor chip support (i.e. reduce the set of chips
1900 and thereby the code size); consult ath_hal(4) for details.
1903 __FreeBSD_version 800054 adds memory barriers to
1904 <machine/atomic.h>, new interfaces to ifnet to facilitate
1905 multiple hardware transmit queues for cards that support
1906 them, and a lock-less ring-buffer implementation to
1907 enable drivers to more efficiently manage queueing of
1911 A new version of ZFS (version 13) has been merged to -HEAD.
1912 This version has zpool attribute "listsnapshots" off by
1913 default, which means "zfs list" does not show snapshots,
1914 and is the same as Solaris behavior.
1917 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
1920 The uhci, ohci, ehci and slhci USB Host controller drivers have
1921 been put into separate modules. If you load the usb module
1922 separately through loader.conf you will need to load the
1923 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
1924 controller add the following to loader.conf:
1930 The ABI used by the PMC toolset has changed. Please keep
1931 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
1935 atapci kernel module now includes only generic PCI ATA
1936 driver. AHCI driver moved to ataahci kernel module.
1937 All vendor-specific code moved into separate kernel modules:
1938 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
1939 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
1940 atamarvell, atamicron, atanational, atanetcell, atanvidia,
1941 atapromise, ataserverworks, atasiliconimage, atasis, atavia
1944 The TTY subsystem of the kernel has been replaced by a new
1945 implementation, which provides better scalability and an
1946 improved driver model. Most common drivers have been migrated to
1947 the new TTY subsystem, while others have not. The following
1948 drivers have not yet been ported to the new TTY layer:
1951 cy, digi, rc, rp, sio
1957 ng_h4, ng_tty, ppp, sl, snp
1959 Adding these drivers to your kernel configuration file shall
1960 cause compilation to fail.
1963 ntpd has been upgraded to 4.2.4p5.
1966 OpenSSH has been upgraded to 5.1p1.
1968 For many years, FreeBSD's version of OpenSSH preferred DSA
1969 over RSA for host and user authentication keys. With this
1970 upgrade, we've switched to the vendor's default of RSA over
1971 DSA. This may cause upgraded clients to warn about unknown
1972 host keys even for previously known hosts. Users should
1973 follow the usual procedure for verifying host keys before
1974 accepting the RSA key.
1976 This can be circumvented by setting the "HostKeyAlgorithms"
1977 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
1980 Please note that the sequence of keys offered for
1981 authentication has been changed as well. You may want to
1982 specify IdentityFile in a different order to revert this
1986 The sio(4) driver has been removed from the i386 and amd64
1987 kernel configuration files. This means uart(4) is now the
1988 default serial port driver on those platforms as well.
1990 To prevent collisions with the sio(4) driver, the uart(4) driver
1991 uses different names for its device nodes. This means the
1992 onboard serial port will now most likely be called "ttyu0"
1993 instead of "ttyd0". You may need to reconfigure applications to
1994 use the new device names.
1996 When using the serial port as a boot console, be sure to update
1997 /boot/device.hints and /etc/ttys before booting the new kernel.
1998 If you forget to do so, you can still manually specify the hints
1999 at the loader prompt:
2001 set hint.uart.0.at="isa"
2002 set hint.uart.0.port="0x3F8"
2003 set hint.uart.0.flags="0x10"
2004 set hint.uart.0.irq="4"
2008 The gpt(8) utility has been removed. Use gpart(8) to partition
2012 The version that Linuxulator emulates was changed from 2.4.2
2013 to 2.6.16. If you experience any problems with Linux binaries
2014 please try to set sysctl compat.linux.osrelease to 2.4.2 and
2015 if it fixes the problem contact emulation mailing list.
2018 ISDN4BSD (I4B) was removed from the src tree. You may need to
2019 update a your kernel configuration and remove relevant entries.
2022 I have checked in code to support multiple routing tables.
2023 See the man pages setfib(1) and setfib(2).
2024 This is a hopefully backwards compatible version,
2025 but to make use of it you need to compile your kernel
2026 with options ROUTETABLES=2 (or more up to 16).
2029 The 802.11 wireless support was redone to enable multi-bss
2030 operation on devices that are capable. The underlying device
2031 is no longer used directly but instead wlanX devices are
2032 cloned with ifconfig. This requires changes to rc.conf files.
2033 For example, change:
2034 ifconfig_ath0="WPA DHCP"
2037 ifconfig_wlan0="WPA DHCP"
2038 see rc.conf(5) for more details. In addition, mergemaster of
2039 /etc/rc.d is highly recommended. Simultaneous update of userland
2040 and kernel wouldn't hurt either.
2042 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
2043 modules were merged into the base wlan module. All references
2044 to these modules (e.g. in kernel config files) must be removed.
2047 psm(4) has gained write(2) support in native operation level.
2048 Arbitrary commands can be written to /dev/psm%d and status can
2049 be read back from it. Therefore, an application is responsible
2050 for status validation and error recovery. It is a no-op in
2051 other operation levels.
2054 Support for KSE threading has been removed from the kernel. To
2055 run legacy applications linked against KSE libmap.conf may
2056 be used. The following libmap.conf may be used to ensure
2057 compatibility with any prior release:
2059 libpthread.so.1 libthr.so.1
2060 libpthread.so.2 libthr.so.2
2061 libkse.so.3 libthr.so.3
2064 The layout of struct vmspace has changed. This affects libkvm
2065 and any executables that link against libkvm and use the
2066 kvm_getprocs() function. In particular, but not exclusively,
2067 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
2068 The effects are minimal, but it's advisable to upgrade world
2072 The latest em driver no longer has support in it for the
2073 82575 adapter, this is now moved to the igb driver. The
2074 split was done to make new features that are incompatible
2075 with older hardware easier to do.
2078 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
2079 likewise the kernel option is now GEOM_LINUX_LVM.
2082 The default NFS mount mode has changed from UDP to TCP for
2083 increased reliability. If you rely on (insecurely) NFS
2084 mounting across a firewall you may need to update your
2088 Belatedly note the addition of m_collapse for compacting
2092 The fts(3) structures have been changed to use adequate
2093 integer types for their members and so to be able to cope
2094 with huge file trees. The old fts(3) ABI is preserved
2095 through symbol versioning in libc, so third-party binaries
2096 using fts(3) should still work, although they will not take
2097 advantage of the extended types. At the same time, some
2098 third-party software might fail to build after this change
2099 due to unportable assumptions made in its source code about
2100 fts(3) structure members. Such software should be fixed
2101 by its vendor or, in the worst case, in the ports tree.
2102 FreeBSD_version 800015 marks this change for the unlikely
2103 case that a portable fix is impossible.
2106 To upgrade to -current after this date, you must be running
2107 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
2108 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
2111 The ADAPTIVE_GIANT kernel option has been retired because its
2112 functionality is the default now.
2115 The AT keyboard emulation of sunkbd(4) has been turned on
2116 by default. In order to make the special symbols of the Sun
2117 keyboards driven by sunkbd(4) work under X these now have
2118 to be configured the same way as Sun USB keyboards driven
2119 by ukbd(4) (which also does AT keyboard emulation), f.e.:
2121 Option "XkbLayout" "us"
2122 Option "XkbRules" "xorg"
2123 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
2126 It has been decided that it is desirable to provide ABI
2127 backwards compatibility to the FreeBSD 4/5/6 versions of the
2128 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
2129 broken with the introduction of PCI domain support (see the
2130 20070930 entry). Unfortunately, this required the ABI of
2131 PCIOCGETCONF to be broken again in order to be able to
2132 provide backwards compatibility to the old version of that
2133 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
2134 again. As for prominent ports this affects neither pciutils
2135 nor xorg-server this time, the hal port needs to be rebuilt
2139 The misnamed kthread_create() and friends have been renamed
2140 to kproc_create() etc. Many of the callers already
2141 used kproc_start()..
2142 I will return kthread_create() and friends in a while
2143 with implementations that actually create threads, not procs.
2144 Renaming corresponds with version 800002.
2153 Avoid using make -j when upgrading. While generally safe, there are
2154 sometimes problems using -j to upgrade. If your upgrade fails with
2155 -j, please try again without -j. From time to time in the past there
2156 have been problems using -j with buildworld and/or installworld. This
2157 is especially true when upgrading between "distant" versions (eg one
2158 that cross a major release boundary or several minor releases, or when
2159 several months have passed on the -current branch).
2161 Sometimes, obscure build problems are the result of environment
2162 poisoning. This can happen because the make utility reads its
2163 environment when searching for values for global variables. To run
2164 your build attempts in an "environmental clean room", prefix all make
2165 commands with 'env -i '. See the env(1) manual page for more details.
2167 When upgrading from one major version to another it is generally best
2168 to upgrade to the latest code in the currently installed branch first,
2169 then do an upgrade to the new branch. This is the best-tested upgrade
2170 path, and has the highest probability of being successful. Please try
2171 this approach before reporting problems with a major version upgrade.
2173 When upgrading a live system, having a root shell around before
2174 installing anything can help undo problems. Not having a root shell
2175 around can lead to problems if pam has changed too much from your
2176 starting point to allow continued authentication after the upgrade.
2180 When upgrading the boot ZFS pool to a new version, always follow
2183 1.) recompile and reinstall the ZFS boot loader and boot block
2184 (this is part of "make buildworld" and "make installworld")
2186 2.) update the ZFS boot block on your boot drive
2188 The following example updates the ZFS boot block on the first
2189 partition (freebsd-boot) of a GPT partitioned drive ad0:
2190 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
2192 Non-boot pools do not need these updates.
2196 If you are updating from a prior version of FreeBSD (even one just
2197 a few days old), you should follow this procedure. It is the most
2198 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
2200 make kernel-toolchain
2201 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
2202 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
2204 To test a kernel once
2205 ---------------------
2206 If you just want to boot a kernel once (because you are not sure
2207 if it works, or if you want to boot a known bad kernel to provide
2208 debugging information) run
2209 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
2210 nextboot -k testkernel
2212 To just build a kernel when you know that it won't mess you up
2213 --------------------------------------------------------------
2214 This assumes you are already running a CURRENT system. Replace
2215 ${arch} with the architecture of your machine (e.g. "i386",
2216 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
2218 cd src/sys/${arch}/conf
2219 config KERNEL_NAME_HERE
2220 cd ../compile/KERNEL_NAME_HERE
2225 If this fails, go to the "To build a kernel" section.
2227 To rebuild everything and install it on the current system.
2228 -----------------------------------------------------------
2229 # Note: sometimes if you are running current you gotta do more than
2230 # is listed here if you are upgrading from a really old current.
2232 <make sure you have good level 0 dumps>
2234 make kernel KERNCONF=YOUR_KERNEL_HERE
2236 <reboot in single user> [3]
2243 To cross-install current onto a separate partition
2244 --------------------------------------------------
2245 # In this approach we use a separate partition to hold
2246 # current's root, 'usr', and 'var' directories. A partition
2247 # holding "/", "/usr" and "/var" should be about 2GB in
2250 <make sure you have good level 0 dumps>
2253 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2254 <maybe newfs current's root partition>
2255 <mount current's root partition on directory ${CURRENT_ROOT}>
2256 make installworld DESTDIR=${CURRENT_ROOT}
2257 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
2258 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
2259 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
2260 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
2261 <reboot into current>
2262 <do a "native" rebuild/install as described in the previous section>
2263 <maybe install compatibility libraries from ports/misc/compat*>
2267 To upgrade in-place from stable to current
2268 ----------------------------------------------
2269 <make sure you have good level 0 dumps>
2271 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
2273 <reboot in single user> [3]
2280 Make sure that you've read the UPDATING file to understand the
2281 tweaks to various things you need. At this point in the life
2282 cycle of current, things change often and you are on your own
2283 to cope. The defaults can also change, so please read ALL of
2284 the UPDATING entries.
2286 Also, if you are tracking -current, you must be subscribed to
2287 freebsd-current@freebsd.org. Make sure that before you update
2288 your sources that you have read and understood all the recent
2289 messages there. If in doubt, please track -stable which has
2290 much fewer pitfalls.
2292 [1] If you have third party modules, such as vmware, you
2293 should disable them at this point so they don't crash your
2296 [3] From the bootblocks, boot -s, and then do
2301 adjkerntz -i # if CMOS is wall time
2302 Also, when doing a major release upgrade, it is required that
2303 you boot into single user mode to do the installworld.
2305 [4] Note: This step is non-optional. Failure to do this step
2306 can result in a significant reduction in the functionality of the
2307 system. Attempting to do it by hand is not recommended and those
2308 that pursue this avenue should read this file carefully, as well
2309 as the archives of freebsd-current and freebsd-hackers mailing lists
2310 for potential gotchas. The -U option is also useful to consider.
2311 See mergemaster(8) for more information.
2313 [5] Usually this step is a noop. However, from time to time
2314 you may need to do this if you get unknown user in the following
2315 step. It never hurts to do it all the time. You may need to
2316 install a new mergemaster (cd src/usr.sbin/mergemaster && make
2317 install) after the buildworld before this step if you last updated
2318 from current before 20130425 or from -stable before 20130430.
2320 [6] This only deletes old files and directories. Old libraries
2321 can be deleted by "make delete-old-libs", but you have to make
2322 sure that no program is using those libraries anymore.
2324 [8] In order to have a kernel that can run the 4.x binaries needed to
2325 do an installworld, you must include the COMPAT_FREEBSD4 option in
2326 your kernel. Failure to do so may leave you with a system that is
2327 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is
2328 required to run the 5.x binaries on more recent kernels. And so on
2329 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7.
2331 Make sure that you merge any new devices from GENERIC since the
2332 last time you updated your kernel config file.
2334 [9] When checking out sources, you must include the -P flag to have
2335 cvs prune empty directories.
2337 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
2338 "?=" instead of the "=" assignment operator, so that buildworld can
2339 override the CPUTYPE if it needs to.
2341 MAKEOBJDIRPREFIX must be defined in an environment variable, and
2342 not on the command line, or in /etc/make.conf. buildworld will
2343 warn if it is improperly defined.
2346 This file contains a list, in reverse chronological order, of major
2347 breakages in tracking -current. It is not guaranteed to be a complete
2348 list of such breakages, and only contains entries since October 10, 2007.
2349 If you need to see UPDATING entries from before that date, you will need
2350 to fetch an UPDATING file from an older FreeBSD release.
2352 Copyright information:
2354 Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
2356 Redistribution, publication, translation and use, with or without
2357 modification, in full or in part, in any form or format of this
2358 document are permitted without further permission from the author.
2360 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2361 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2362 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2363 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2364 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2365 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2366 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2367 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2368 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2369 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2370 POSSIBILITY OF SUCH DAMAGE.
2372 Contact Warner Losh if you have any questions about your use of
projects / FreeBSD / releng / 10.1.git / blob