UPDATING revision 303304
1Updating Information for FreeBSD current users 2 3This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>. 4See end of file for further details. For commonly done items, please see the 5COMMON ITEMS: section later in the file. These instructions assume that you 6basically know what you are doing. If not, then please consult the FreeBSD 7handbook: 8 9 http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html 10 11Items affecting the ports and packages system can be found in 12/usr/ports/UPDATING. Please read that file before running portupgrade. 13 14NOTE: FreeBSD has switched from gcc to clang. If you have trouble bootstrapping 15from older versions of FreeBSD, try WITHOUT_CLANG to bootstrap to the tip of 16stable/10, and then rebuild without this option. The bootstrap process from 17older version of current is a bit fragile. 18 1920160725 p20 FreeBSD-SA-16:25.bspatch 20 FreeBSD-EN-16:09.freebsd-update 21 22 Fix bspatch heap overflow vulnerability. [SA-16:25] 23 24 Fix freebsd-update(8) support of FreeBSD 11.0 release 25 distribution. [EN-16:09] 26 2720160604 p19 FreeBSD-SA-16:24.ntp 28 29 Fix multiple vulnerabilities of ntp. 30 3120160531 p18 FreeBSD-SA-16:20.linux 32 FreeBSD-SA-16:21.43bsd 33 FreeBSD-SA-16:22.libarchive 34 35 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 36 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 37 Fix directory traversal in cpio(1). [SA-16:22] 38 3920160517 p17 FreeBSD-SA-16:18.atkbd 40 FreeBSD-SA-16:19.sendmsg 41 42 Fix buffer overflow in keyboard driver. [SA-16:18] 43 44 Fix incorrect argument handling in sendmsg(2). [SA-16:19] 45 4620160504 p16 FreeBSD-SA-16:17.openssl 47 FreeBSD-EN-16:07.ipi 48 FreeBSD-EN-16:08.zfs 49 50 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 51 52 Fix excessive latency in x86 IPI delivery. [EN-16:07] 53 54 Fix memory leak in ZFS. [EN-16:08] 55 5620160429 p15 FreeBSD-SA-16:16.ntp 57 58 Fix multiple vulnerabilities of ntp. 59 6020160316 p14 FreeBSD-SA-16:14.openssh-xauth 61 FreeBSD-SA-16:15.sysarch 62 FreeBSD-EN-16:04.hyperv 63 FreeBSD-EN-16:05.hv_netvsc 64 65 Fix OpenSSH xauth(1) command injection. [SA-16:14] 66 Fix incorrect argument validation in sysarch(2). [SA-16:15] 67 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04] 68 Fix hv_netvsc(4) incorrect TCP/IP checksums. [EN-16:05] 69 7020160303 p13 FreeBSD-SA-16:12.openssl 71 72 Fix multiple vulnerabilities of OpenSSL. 73 7420160130 p12 FreeBSD-SA-16:11.openssl 75 76 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 77 7820160127 p11 FreeBSD-SA-16:09.ntp 79 FreeBSD-SA-16:10.linux 80 81 Fix multiple vulnerabilities of ntp. [SA-16:09] 82 83 Fix Linux compatibility layer issetugid(2) system call 84 vulnerability. [SA-16:10] 85 8620160114 p10 FreeBSD-SA-16:07.openssh 87 88 Fix OpenSSH client information leak. [SA-16:07] 89 9020160114 p9 FreeBSD-EN-16:01.filemon 91 FreeBSD-EN-16:02.pf 92 FreeBSD-EN-16:03.yplib 93 FreeBSD-SA-16:01.sctp 94 FreeBSD-SA-16:02.ntp 95 FreeBSD-SA-16:03.linux 96 FreeBSD-SA-16:04.linux 97 FreeBSD-SA-16:05.tcp 98 FreeBSD-SA-16:06.bsnmpd 99 100 Fix multiple stability and locking problems in filemon(4). [EN-16:01] 101 Fix pf(4) generating bad TCP checksums. [EN-16:02] 102 Fix infinite loop in YP/NIS client library. [EN-16:03] 103 Fix remote denial of service in SCTP. [SA-16:01] 104 Update NTP to 4.2.8p5. [SA-16:02] 105 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 106 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 107 Fix crash in TCP MD5 signatures. [SA-16:05] 108 Fix insecure default permissions for snmpd.config. [SA-16:06] 109 11020151205 p8 FreeBSD-SA-15:26.openssl 111 112 Fix multiple OpenSSL vulnerabilities. [SA-15:26] 113 11420151104 p7 FreeBSD-SA-15:25.ntp [revised] 115 FreeBSD-EN-15:19.kqueue 116 FreeBSD-EN-15:20.vm 117 118 Fix regression in ntpd(8) lacking support for RAWDCF reference 119 clock in 10.2-RELEASE-p6. [SA-15:25] 120 121 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 122 123 Fix applications exiting due to segmentation violation on a correct 124 memory address. [EN-15:20.vm] 125 12620151026: p6 FreeBSD-SA-15:25.ntp 127 128 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 129 13020151002: p5 FreeBSD-SA-15:24.rpcbind [revised] 131 Revised patch to address a regression that prevents NIS from working. 132 13320150929: p4 FreeBSD-SA-15:24.rpcbind 134 135 Fix rpcbind(8) remote denial of service. [SA-15:24] 136 13720150916: p3 FreeBSD-EN-15:16.pw 138 FreeBSD-EN-15:17.libc 139 FreeBSD-EN-15:18.pkg 140 141 Fix regression in pw(8) when creating numeric users or groups. 142 [EN-15:16] 143 144 Fix libc handling of signals for multi-threaded processes. 145 [EN-15:17] 146 147 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 148 14920150825: p2 FreeBSD-SA-15:22.openssh 150 FreeBSD-EN-15:15.pkg 151 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 152 153 Fix insufficient check of unsupported pkg(7) signature methods. 154 [EN-15:15] 155 15620150818: p1 FreeBSD-SA-15:20.expat 157 FreeBSD-EN-15:11.toolchain 158 FreeBSD-EN-15:12.netstat 159 FreeBSD-EN-15:13.vidcontrol 160 161 Fix multiple integer overflows in expat (libbsdxml) XML parser. 162 [SA-15:20] 163 164 Fix make(1) syntax errors when upgrading from 9.x and earlier. 165 [EN-15:11] 166 167 Fix incorrect netstat(1) data handling on 32-bit systems. 168 [EN-15:12] 169 170 Allow size argument to vidcontrol(1) for syscons(4). [EN-15:13] 171 17220150813: 173 10.2-RELEASE. 174 17520150703: 176 The default Unbound configuration now enables remote control 177 using a local socket. Users who have already enabled the 178 local_unbound service should regenerate their configuration 179 by running "service local_unbound setup" as root. 180 18120150624: 182 An additional fix for the issue described in the 20150614 sendmail 183 entry below has been been committed in revision 284786. 184 18520150615: 186 The fix for the issue described in the 20150614 sendmail entry 187 below has been been committed in revision 284485. The work 188 around described in that entry is no longer needed unless the 189 default setting is overridden by a confDH_PARAMETERS configuration 190 setting of '5' or pointing to a 512 bit DH parameter file. 191 19220150614: 193 The import of openssl to address the FreeBSD-SA-15:10.openssl 194 security advisory includes a change which rejects handshakes 195 with DH parameters below 768 bits. sendmail releases prior 196 to 8.15.2 (not yet released), defaulted to a 512 bit 197 DH parameter setting for client connections. To work around 198 this interoperability, sendmail can be configured to use a 199 2048 bit DH parameter by: 200 201 1. Edit /etc/mail/`hostname`.mc 202 2. If a setting for confDH_PARAMETERS does not exist or 203 exists and is set to a string beginning with '5', 204 replace it with '2'. 205 3. If a setting for confDH_PARAMETERS exists and is set to 206 a file path, create a new file with: 207 openssl dhparam -out /path/to/file 2048 208 4. Rebuild the .cf file: 209 cd /etc/mail/; make; make install 210 5. Restart sendmail: 211 cd /etc/mail/; make restart 212 213 A sendmail patch is coming, at which time this file will be 214 updated. 215 21620150601: 217 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 218 defined in symlink(7); previously symlinks were silently ignored. 219 22020150430: 221 The const qualifier has been removed from iconv(3) to comply with 222 POSIX. The ports tree is aware of this from r384038 onwards. 223 22420141215: 225 At svn r275807, The default linux compat kernel ABI has been adjusted 226 to 2.6.18 in support of the linux-c6 compat ports infrastructure 227 update. If you wish to continue using the linux-f10 compat ports, 228 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 229 encouraged to update their linux-compat packages to linux-c6 during 230 their next update cycle. 231 232 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 233 23420141205: 235 pjdfstest has been integrated into kyua as an opt-in test suite. 236 Please see share/doc/pjdfstest/README for a more details on how to 237 execute it. 238 23920141118: 240 10.1-RELEASE. 241 24220140904: 243 The ofwfb driver, used to provide a graphics console on PowerPC when 244 using vt(4), no longer allows mmap() of all of physical memory. This 245 will prevent Xorg on PowerPC with some ATI graphics cards from 246 initializing properly unless x11-servers/xorg-server is updated to 247 1.12.4_8 or newer. 248 24920140831: 250 The libatf-c and libatf-c++ major versions were downgraded to 0 and 251 1 respectively to match the upstream numbers. They were out of 252 sync because, when they were originally added to FreeBSD, the 253 upstream versions were not respected. These libraries are private 254 and not yet built by default, so renumbering them should be a 255 non-issue. However, unclean source trees will yield broken test 256 programs once the operator executes "make delete-old-libs" after a 257 "make installworld". 258 259 Additionally, the atf-sh binary was made private by moving it into 260 /usr/libexec/. Already-built shell test programs will keep the 261 path to the old binary so they will break after "make delete-old" 262 is run. 263 264 If you are using WITH_TESTS=yes (not the default), wipe the object 265 tree and rebuild from scratch to prevent spurious test failures. 266 This is only needed once: the misnumbered libraries and misplaced 267 binaries have been added to OptionalObsoleteFiles.inc so they will 268 be removed during a clean upgrade. 269 27020140814: 271 The ixgbe tunables now match their sysctl counterparts, for example: 272 hw.ixgbe.enable_aim => hw.ix.enable_aim 273 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 274 27520140801: 276 The NFSv4.1 server committed by r269398 changes the internal 277 function call interfaces used between the NFS and krpc modules. 278 As such, __FreeBSD_version was bumped. 279 28020140729: 281 The default unbound configuration has been modified to address 282 issues with reverse lookups on networks that use private 283 address ranges. If you use the local_unbound service, run 284 "service local_unbound setup" as root to regenerate your 285 configuration, then "service local_unbound reload" to load the 286 new configuration. 287 28820140717: 289 It is no longer necessary to include the dwarf version in your DEBUG 290 options in your kernel config file. The bug that required it to be 291 placed in the config file has bene fixed. DEBUG should now just 292 contain -g. The build system will automatically update things 293 to do the right thing. 294 29520140715: 296 Several ABI breaking changes were merged to CTL and new iSCSI code. 297 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 298 iscsictl need to be rebuilt to work with a new kernel. 299 30020140708: 301 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 302 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 303 which differs from the behaviour controlled by this knob.) 304 30520140608: 306 On i386 and amd64 systems, the onifconsole flag is now set by default 307 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 308 as a login TTY if it is set in the bootloader as an active kernel 309 console. No changes in behavior should result otherwise. To revert to 310 the previous behavior, set ttyu0 to "off" in /etc/ttys. 311 31220140512: 313 Clang and llvm have been upgraded to 3.4.1 release. 314 31520140321: 316 Clang and llvm have been upgraded to 3.4 release. 317 31820140306: 319 If a Makefile in a tests/ directory was auto-generating a Kyuafile 320 instead of providing an explicit one, this would prevent such 321 Makefile from providing its own Kyuafile in the future during 322 NO_CLEAN builds. This has been fixed in the Makefiles but manual 323 intervention is needed to clean an objdir if you use NO_CLEAN: 324 # find /usr/obj -name Kyuafile | xargs rm -f 325 32620140303: 327 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 328 capability mode support. Please note that enabling the feature in 329 kernel is still highly recommended. 330 33120140227: 332 OpenSSH is now built with sandbox support, and will use sandbox as 333 the default privilege separation method. This requires Capsicum 334 capability mode support in kernel. 335 33620140216: 337 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 338 been deprecated and will not be part of FreeBSD 11.0 and later 339 releases. If you use this driver, please consider switching to 340 the nfe(4) driver instead. 341 34220140120: 343 10.0-RELEASE. 344 34520131216: 346 The behavior of gss_pseudo_random() for the krb5 mechanism 347 has changed, for applications requesting a longer random string 348 than produced by the underlying enctype's pseudo-random() function. 349 In particular, the random string produced from a session key of 350 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 351 be different at the 17th octet and later, after this change. 352 The counter used in the PRF+ construction is now encoded as a 353 big-endian integer in accordance with RFC 4402. 354 __FreeBSD_version is bumped to 1000701. 355 35620131108: 357 The WITHOUT_ATF build knob has been removed and its functionality 358 has been subsumed into the more generic WITHOUT_TESTS. If you were 359 using the former to disable the build of the ATF libraries, you 360 should change your settings to use the latter. 361 36220131031: 363 The default version of mtree is nmtree which is obtained from 364 NetBSD. The output is generally the same, but may vary 365 slightly. If you found you need identical output adding 366 "-F freebsd9" to the command line should do the trick. For the 367 time being, the old mtree is available as fmtree. 368 36920131014: 370 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 371 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 372 1.1.4_8 and verify bsdyml not linked in, before running "make 373 delete-old-libs": 374 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 375 or 376 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 377 37820131010: 379 The rc.d/jail script has been updated to support jail(8) 380 configuration file. The "jail_<jname>_*" rc.conf(5) variables 381 for per-jail configuration are automatically converted to 382 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 383 This is transparently backward compatible. See below about some 384 incompatibilities and rc.conf(5) manual page for more details. 385 386 These variables are now deprecated in favor of jail(8) configuration 387 file. One can use "rc.d/jail config <jname>" command to generate 388 a jail(8) configuration file in /var/run/jail.<jname>.conf without 389 running the jail(8) utility. The default pathname of the 390 configuration file is /etc/jail.conf and can be specified by 391 using $jail_conf or $jail_<jname>_conf variables. 392 393 Please note that jail_devfs_ruleset accepts an integer at 394 this moment. Please consider to rewrite the ruleset name 395 with an integer. 396 39720130930: 398 BIND has been removed from the base system. If all you need 399 is a local resolver, simply enable and start the local_unbound 400 service instead. Otherwise, several versions of BIND are 401 available in the ports tree. The dns/bind99 port is one example. 402 403 With this change, nslookup(1) and dig(1) are no longer in the base 404 system. Users should instead use host(1) and drill(1) which are 405 in the base system. Alternatively, nslookup and dig can 406 be obtained by installing the dns/bind-tools port. 407 40820130916: 409 With the addition of unbound(8), a new unbound user is now 410 required during installworld. "mergemaster -p" can be used to 411 add the user prior to installworld, as documented in the handbook. 412 41320130911: 414 OpenSSH is now built with DNSSEC support, and will by default 415 silently trust signed SSHFP records. This can be controlled with 416 the VerifyHostKeyDNS client configuration setting. DNSSEC support 417 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 418 41920130906: 420 The GNU Compiler Collection and C++ standard library (libstdc++) 421 are no longer built by default on platforms where clang is the system 422 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 423 options in src.conf. 424 42520130905: 426 The PROCDESC kernel option is now part of the GENERIC kernel 427 configuration and is required for the rwhod(8) to work. 428 If you are using custom kernel configuration, you should include 429 'options PROCDESC'. 430 43120130905: 432 The API and ABI related to the Capsicum framework was modified 433 in backward incompatible way. The userland libraries and programs 434 have to be recompiled to work with the new kernel. This includes the 435 following libraries and programs, but the whole buildworld is 436 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 437 kdump, procstat, rwho, rwhod, uniq. 438 43920130903: 440 AES-NI intrinsic support has been added to gcc. The AES-NI module 441 has been updated to use this support. A new gcc is required to build 442 the aesni module on both i386 and amd64. 443 44420130821: 445 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 446 Thus "device padlock_rng" and "device rdrand_rng" should be 447 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 448 44920130813: 450 WITH_ICONV has been split into two feature sets. WITH_ICONV now 451 enables just the iconv* functionality and is now on by default. 452 WITH_LIBICONV_COMPAT enables the libiconv api and link time 453 compatability. Set WITHOUT_ICONV to build the old way. 454 If you have been using WITH_ICONV before, you will very likely 455 need to turn on WITH_LIBICONV_COMPAT. 456 45720130806: 458 INVARIANTS option now enables DEBUG for code with OpenSolaris and 459 Illumos origin, including ZFS. If you have INVARIANTS in your 460 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 461 explicitly. 462 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 463 locks if WITNESS option was set. Because that generated a lot of 464 witness(9) reports and all of them were believed to be false 465 positives, this is no longer done. New option OPENSOLARIS_WITNESS 466 can be used to achieve the previous behavior. 467 46820130806: 469 Timer values in IPv6 data structures now use time_uptime instead 470 of time_second. Although this is not a user-visible functional 471 change, userland utilities which directly use them---ndp(8), 472 rtadvd(8), and rtsold(8) in the base system---need to be updated 473 to r253970 or later. 474 47520130802: 476 find -delete can now delete the pathnames given as arguments, 477 instead of only files found below them or if the pathname did 478 not contain any slashes. Formerly, the following error message 479 would result: 480 481 find: -delete: <path>: relative path potentially not safe 482 483 Deleting the pathnames given as arguments can be prevented 484 without error messages using -mindepth 1 or by changing 485 directory and passing "." as argument to find. This works in the 486 old as well as the new version of find. 487 48820130726: 489 Behavior of devfs rules path matching has been changed. 490 Pattern is now always matched against fully qualified devfs 491 path and slash characters must be explicitly matched by 492 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 493 subdirectories must be reviewed. 494 49520130716: 496 The default ARM ABI has changed to the ARM EABI. The old ABI is 497 incompatible with the ARM EABI and all programs and modules will 498 need to be rebuilt to work with a new kernel. 499 500 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 501 502 NOTE: Support for the old ABI will be removed in the future and 503 users are advised to upgrade. 504 50520130709: 506 pkg_install has been disconnected from the build if you really need it 507 you should add WITH_PKGTOOLS in your src.conf(5). 508 50920130709: 510 Most of network statistics structures were changed to be able 511 keep 64-bits counters. Thus all tools, that work with networking 512 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 513 51420130629: 515 Fix targets that run multiple make's to use && rather than ; 516 so that subsequent steps depend on success of previous. 517 518 NOTE: if building 'universe' with -j* on stable/8 or stable/9 519 it would be better to start the build using bmake, to avoid 520 overloading the machine. 521 52220130618: 523 Fix a bug that allowed a tracing process (e.g. gdb) to write 524 to a memory-mapped file in the traced process's address space 525 even if neither the traced process nor the tracing process had 526 write access to that file. 527 52820130615: 529 CVS has been removed from the base system. An exact copy 530 of the code is available from the devel/cvs port. 531 53220130613: 533 Some people report the following error after the switch to bmake: 534 535 make: illegal option -- J 536 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 537 ... 538 *** [buildworld] Error code 2 539 540 this likely due to an old instance of make in 541 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 542 which src/Makefile will use that blindly, if it exists, so if 543 you see the above error: 544 545 rm -rf `make -V MAKEPATH` 546 547 should resolve it. 548 54920130516: 550 Use bmake by default. 551 Whereas before one could choose to build with bmake via 552 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 553 make. The goal is to remove these knobs for 10-RELEASE. 554 555 It is worth noting that bmake (like gmake) treats the command 556 line as the unit of failure, rather than statements within the 557 command line. Thus '(cd some/where && dosomething)' is safer 558 than 'cd some/where; dosomething'. The '()' allows consistent 559 behavior in parallel build. 560 56120130429: 562 Fix a bug that allows NFS clients to issue READDIR on files. 563 56420130426: 565 The WITHOUT_IDEA option has been removed because 566 the IDEA patent expired. 567 56820130426: 569 The sysctl which controls TRIM support under ZFS has been renamed 570 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 571 enabled by default. 572 57320130425: 574 The mergemaster command now uses the default MAKEOBJDIRPREFIX 575 rather than creating it's own in the temporary directory in 576 order allow access to bootstrapped versions of tools such as 577 install and mtree. When upgrading from version of FreeBSD where 578 the install command does not support -l, you will need to 579 install a new mergemaster command if mergemaster -p is required. 580 This can be accomplished with the command (cd src/usr.sbin/mergemaster 581 && make install). 582 58320130404: 584 Legacy ATA stack, disabled and replaced by new CAM-based one since 585 FreeBSD 9.0, completely removed from the sources. Kernel modules 586 atadisk and atapi*, user-level tools atacontrol and burncd are 587 removed. Kernel option `options ATA_CAM` is now permanently enabled 588 and removed. 589 59020130319: 591 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 592 and socketpair(2). Software, in particular Kerberos, may 593 automatically detect and use these during building. The resulting 594 binaries will not work on older kernels. 595 59620130308: 597 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 598 information, see the respective 20130304 entry). 599 60020130304: 601 Recent commits to callout(9) changed the size of struct callout, 602 so the KBI is probably heavily disturbed. Also, some functions 603 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 604 by macros. Every kernel module using it won't load, so rebuild 605 is requested. 606 607 The ctl device has been re-enabled in GENERIC for i386 and amd64, 608 but does not initialize by default (because of the new CTL_DISABLE 609 option) to save memory. To re-enable it, remove the CTL_DISABLE 610 option from the kernel config file or set kern.cam.ctl.disable=0 611 in /boot/loader.conf. 612 61320130301: 614 The ctl device has been disabled in GENERIC for i386 and amd64. 615 This was done due to the extra memory being allocated at system 616 initialisation time by the ctl driver which was only used if 617 a CAM target device was created. This makes a FreeBSD system 618 unusable on 128MB or less of RAM. 619 62020130208: 621 A new compression method (lz4) has been merged to -HEAD. Please 622 refer to zpool-features(7) for more information. 623 624 Please refer to the "ZFS notes" section of this file for information 625 on upgrading boot ZFS pools. 626 62720130129: 628 A BSD-licensed patch(1) variant has been added and is installed 629 as bsdpatch, being the GNU version the default patch. 630 To inverse the logic and use the BSD-licensed one as default, 631 while having the GNU version installed as gnupatch, rebuild 632 and install world with the WITH_BSD_PATCH knob set. 633 63420130121: 635 Due to the use of the new -l option to install(1) during build 636 and install, you must take care not to directly set the INSTALL 637 make variable in your /etc/make.conf, /etc/src.conf, or on the 638 command line. If you wish to use the -C flag for all installs 639 you may be able to add INSTALL+=-C to /etc/make.conf or 640 /etc/src.conf. 641 64220130118: 643 The install(1) option -M has changed meaning and now takes an 644 argument that is a file or path to append logs to. In the 645 unlikely event that -M was the last option on the command line 646 and the command line contained at least two files and a target 647 directory the first file will have logs appended to it. The -M 648 option served little practical purpose in the last decade so its 649 use is expected to be extremely rare. 650 65120121223: 652 After switching to Clang as the default compiler some users of ZFS 653 on i386 systems started to experience stack overflow kernel panics. 654 Please consider using 'options KSTACK_PAGES=4' in such configurations. 655 65620121222: 657 GEOM_LABEL now mangles label names read from file system metadata. 658 Mangling affect labels containing spaces, non-printable characters, 659 '%' or '"'. Device names in /etc/fstab and other places may need to 660 be updated. 661 66220121217: 663 By default, only the 10 most recent kernel dumps will be saved. To 664 restore the previous behaviour (no limit on the number of kernel dumps 665 stored in the dump directory) add the following line to /etc/rc.conf: 666 667 savecore_flags="" 668 66920121201: 670 With the addition of auditdistd(8), a new auditdistd user is now 671 required during installworld. "mergemaster -p" can be used to 672 add the user prior to installworld, as documented in the handbook. 673 67420121117: 675 The sin6_scope_id member variable in struct sockaddr_in6 is now 676 filled by the kernel before passing the structure to the userland via 677 sysctl or routing socket. This means the KAME-specific embedded scope 678 id in sin6_addr.s6_addr[2] is always cleared in userland application. 679 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 680 __FreeBSD_version is bumped to 1000025. 681 68220121105: 683 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 684 This means that the world and kernel will be compiled with clang 685 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 686 and /usr/bin/cpp. To disable this behavior and revert to building 687 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 688 of current may need to bootstrap WITHOUT_CLANG first if the clang 689 build fails (its compatibility window doesn't extend to the 9 stable 690 branch point). 691 69220121102: 693 The IPFIREWALL_FORWARD kernel option has been removed. Its 694 functionality now turned on by default. 695 69620121023: 697 The ZERO_COPY_SOCKET kernel option has been removed and 698 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 699 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 700 mechanism which is not safe and may result in kernel crashes. 701 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 702 driver supports disposeable external page sized mbuf storage. 703 Proper replacements for both zero-copy mechanisms are under 704 consideration and will eventually lead to complete removal 705 of the two kernel options. 706 70720121023: 708 The IPv4 network stack has been converted to network byte 709 order. The following modules need to be recompiled together 710 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 711 pf(4), ipfw(4), ng_ipfw(4), stf(4). 712 71320121022: 714 Support for non-MPSAFE filesystems was removed from VFS. The 715 VFS_VERSION was bumped, all filesystem modules shall be 716 recompiled. 717 71820121018: 719 All the non-MPSAFE filesystems have been disconnected from 720 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 721 portalfs, smbfs, xfs. 722 72320121016: 724 The interface cloning API and ABI has changed. The following 725 modules need to be recompiled together with kernel: 726 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 727 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 728 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 729 73020121015: 731 The sdhci driver was split in two parts: sdhci (generic SD Host 732 Controller logic) and sdhci_pci (actual hardware driver). 733 No kernel config modifications are required, but if you 734 load sdhc as a module you must switch to sdhci_pci instead. 735 73620121014: 737 Import the FUSE kernel and userland support into base system. 738 73920121013: 740 The GNU sort(1) program has been removed since the BSD-licensed 741 sort(1) has been the default for quite some time and no serious 742 problems have been reported. The corresponding WITH_GNU_SORT 743 knob has also gone. 744 74520121006: 746 The pfil(9) API/ABI for AF_INET family has been changed. Packet 747 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 748 with new kernel. 749 75020121001: 751 The net80211(4) ABI has been changed to allow for improved driver 752 PS-POLL and power-save support. All wireless drivers need to be 753 recompiled to work with the new kernel. 754 75520120913: 756 The random(4) support for the VIA hardware random number 757 generator (`PADLOCK') is no longer enabled unconditionally. 758 Add the padlock_rng device in the custom kernel config if 759 needed. The GENERIC kernels on i386 and amd64 do include the 760 device, so the change only affects the custom kernel 761 configurations. 762 76320120908: 764 The pf(4) packet filter ABI has been changed. pfctl(8) and 765 snmp_pf module need to be recompiled to work with new kernel. 766 76720120828: 768 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 769 to -HEAD. Pools that have empty_bpobj in active state can not be 770 imported read-write with ZFS implementations that do not support 771 this feature. For more information read the zpool-features(5) 772 manual page. 773 77420120727: 775 The sparc64 ZFS loader has been changed to no longer try to auto- 776 detect ZFS providers based on diskN aliases but now requires these 777 to be explicitly listed in the OFW boot-device environment variable. 778 77920120712: 780 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 781 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 782 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 783 78420120712: 785 The following sysctls and tunables have been renamed for consistency 786 with other variables: 787 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 788 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 789 79020120628: 791 The sort utility has been replaced with BSD sort. For now, GNU sort 792 is also available as "gnusort" or the default can be set back to 793 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 794 installed as "bsdsort". 795 79620120611: 797 A new version of ZFS (pool version 5000) has been merged to -HEAD. 798 Starting with this version the old system of ZFS pool versioning 799 is superseded by "feature flags". This concept enables forward 800 compatibility against certain future changes in functionality of ZFS 801 pools. The first read-only compatible "feature flag" for ZFS pools 802 is named "com.delphix:async_destroy". For more information 803 read the new zpool-features(5) manual page. 804 Please refer to the "ZFS notes" section of this file for information 805 on upgrading boot ZFS pools. 806 80720120417: 808 The malloc(3) implementation embedded in libc now uses sources imported 809 as contrib/jemalloc. The most disruptive API change is to 810 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 811 delete it prior to installworld, and optionally re-create it using the 812 new format after rebooting. See malloc.conf(5) for details 813 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 814 NAMESPACE section). 815 81620120328: 817 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 818 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 819 now spelled mips. This is to aid compatibility with third-party 820 software that expects this naming scheme in uname(3). Little-endian 821 settings are unchanged. If you are updating a big-endian mips64 machine 822 from before this change, you may need to set MACHINE_ARCH=mips64 in 823 your environment before the new build system will recognize your machine. 824 82520120306: 826 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 827 platforms. 828 82920120229: 830 Now unix domain sockets behave "as expected" on nullfs(5). Previously 831 nullfs(5) did not pass through all behaviours to the underlying layer, 832 as a result if we bound to a socket on the lower layer we could connect 833 only to the lower path; if we bound to the upper layer we could connect 834 only to the upper path. The new behavior is one can connect to both the 835 lower and the upper paths regardless what layer path one binds to. 836 83720120211: 838 The getifaddrs upgrade path broken with 20111215 has been restored. 839 If you have upgraded in between 20111215 and 20120209 you need to 840 recompile libc again with your kernel. You still need to recompile 841 world to be able to configure CARP but this restriction already 842 comes from 20111215. 843 84420120114: 845 The set_rcvar() function has been removed from /etc/rc.subr. All 846 base and ports rc.d scripts have been updated, so if you have a 847 port installed with a script in /usr/local/etc/rc.d you can either 848 hand-edit the rcvar= line, or reinstall the port. 849 850 An easy way to handle the mass-update of /etc/rc.d: 851 rm /etc/rc.d/* && mergemaster -i 852 85320120109: 854 panic(9) now stops other CPUs in the SMP systems, disables interrupts 855 on the current CPU and prevents other threads from running. 856 This behavior can be reverted using the kern.stop_scheduler_on_panic 857 tunable/sysctl. 858 The new behavior can be incompatible with kern.sync_on_panic. 859 86020111215: 861 The carp(4) facility has been changed significantly. Configuration 862 of the CARP protocol via ifconfig(8) has changed, as well as format 863 of CARP events submitted to devd(8) has changed. See manual pages 864 for more information. The arpbalance feature of carp(4) is currently 865 not supported anymore. 866 867 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 868 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 869 need to be recompiled. 870 87120111122: 872 The acpi_wmi(4) status device /dev/wmistat has been renamed to 873 /dev/wmistat0. 874 87520111108: 876 The option VFS_ALLOW_NONMPSAFE option has been added in order to 877 explicitely support non-MPSAFE filesystems. 878 It is on by default for all supported platform at this present 879 time. 880 88120111101: 882 The broken amd(4) driver has been replaced with esp(4) in the amd64, 883 i386 and pc98 GENERIC kernel configuration files. 884 88520110930: 886 sysinstall has been removed 887 88820110923: 889 The stable/9 branch created in subversion. This corresponds to the 890 RELENG_9 branch in CVS. 891 89220110913: 893 This commit modifies vfs_register() so that it uses a hash 894 calculation to set vfc_typenum, which is enabled by default. 895 The first time a system is booted after this change, the 896 vfc_typenum values will change for all file systems. The 897 main effect of this is a change to the NFS server file handles 898 for file systems that use vfc_typenum in their fsid, such as ZFS. 899 It will, however, prevent vfc_typenum from changing when file 900 systems are loaded in a different order for subsequent reboots. 901 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 902 until you are ready to remount all NFS clients after a reboot. 903 90420110828: 905 Bump the shared library version numbers for libraries that 906 do not use symbol versioning, have changed the ABI compared 907 to stable/8 and which shared library version was not bumped. 908 Done as part of 9.0-RELEASE cycle. 909 91020110815: 911 During the merge of Capsicum features, the fget(9) KPI was modified. 912 This may require the rebuilding of out-of-tree device drivers -- 913 issues have been reported specifically with the nVidia device driver. 914 __FreeBSD_version is bumped to 900041. 915 916 Also, there is a period between 20110811 and 20110814 where the 917 special devices /dev/{stdin,stdout,stderr} did not work correctly. 918 Building world from a kernel during that window may not work. 919 92020110628: 921 The packet filter (pf) code has been updated to OpenBSD 4.5. 922 You need to update userland tools to be in sync with kernel. 923 This update breaks backward compatibility with earlier pfsync(4) 924 versions. Care must be taken when updating redundant firewall setups. 925 92620110608: 927 The following sysctls and tunables are retired on x86 platforms: 928 machdep.hlt_cpus 929 machdep.hlt_logical_cpus 930 The following sysctl is retired: 931 machdep.hyperthreading_allowed 932 The sysctls were supposed to provide a way to dynamically offline and 933 online selected CPUs on x86 platforms, but the implementation has not 934 been reliable especially with SCHED_ULE scheduler. 935 machdep.hyperthreading_allowed tunable is still available to ignore 936 hyperthreading CPUs at OS level. 937 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 938 where X is an APIC ID of a CPU. Be advised, though, that disabling 939 CPUs in non-uniform fashion will result in non-uniform topology and 940 may lead to sub-optimal system performance with SCHED_ULE, which is 941 a default scheduler. 942 94320110607: 944 cpumask_t type is retired and cpuset_t is used in order to describe 945 a mask of CPUs. 946 94720110531: 948 Changes to ifconfig(8) for dynamic address family detection mandate 949 that you are running a kernel of 20110525 or later. Make sure to 950 follow the update procedure to boot a new kernel before installing 951 world. 952 95320110513: 954 Support for sun4v architecture is officially dropped 955 95620110503: 957 Several KPI breaking changes have been committed to the mii(4) layer, 958 the PHY drivers and consequently some Ethernet drivers using mii(4). 959 This means that miibus.ko and the modules of the affected Ethernet 960 drivers need to be recompiled. 961 962 Note to kernel developers: Given that the OUI bit reversion problem 963 was fixed as part of these changes all mii(4) commits related to OUIs, 964 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 965 handling, no longer can be merged verbatim to stable/8 and previous 966 branches. 967 96820110430: 969 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 970 into their kernel configurations along with 'device pci'. 971 97220110427: 973 The default NFS client is now the new NFS client, so fstype "newnfs" 974 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 975 Although mounts via fstype "nfs" will usually work without userland 976 changes, it is recommended that the mount(8) and mount_nfs(8) 977 commands be rebuilt from sources and that a link to mount_nfs called 978 mount_oldnfs be created. The new client is compiled into the 979 kernel with "options NFSCL" and this is needed for diskless root 980 file systems. The GENERIC kernel configs have been changed to use 981 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 982 To use the regular/old client, you can "mount -t oldnfs ...". For 983 a diskless root file system, you must also include a line like: 984 985 vfs.root.mountfrom="oldnfs:" 986 987 in the boot/loader.conf on the root fs on the NFS server to make 988 a diskless root fs use the old client. 989 99020110424: 991 The GENERIC kernels for all architectures now default to the new 992 CAM-based ATA stack. It means that all legacy ATA drivers were 993 removed and replaced by respective CAM drivers. If you are using 994 ATA device names in /etc/fstab or other places, make sure to update 995 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 996 where 'Y's are the sequential numbers starting from zero for each type 997 in order of detection, unless configured otherwise with tunables, 998 see cam(4)). There will be symbolic links created in /dev/ to map 999 old adX devices to the respective adaY. They should provide basic 1000 compatibility for file systems mounting in most cases, but they do 1001 not support old user-level APIs and do not have respective providers 1002 in GEOM. Consider using updated management tools with new device names. 1003 1004 It is possible to load devices ahci, ata, siis and mvs as modules, 1005 but option ATA_CAM should remain in kernel configuration to make ata 1006 module work as CAM driver supporting legacy ATA controllers. Device ata 1007 still can be used in modular fashion (atacore + ...). Modules atadisk 1008 and atapi* are not used and won't affect operation in ATA_CAM mode. 1009 Note that to use CAM-based ATA kernel should include CAM devices 1010 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1011 them are parts of the cam module. 1012 1013 ataraid(4) functionality is now supported by the RAID GEOM class. 1014 To use it you can load geom_raid kernel module and use graid(8) tool 1015 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1016 1017 No kernel config options or code have been removed, so if a problem 1018 arises, please report it and optionally revert to the old ATA stack. 1019 In order to do it you can remove from the kernel config: 1020 options ATA_CAM 1021 device ahci 1022 device mvs 1023 device siis 1024 , and instead add back: 1025 device atadisk # ATA disk drives 1026 device ataraid # ATA RAID drives 1027 device atapicd # ATAPI CDROM drives 1028 device atapifd # ATAPI floppy drives 1029 device atapist # ATAPI tape drives 1030 103120110423: 1032 The default NFS server has been changed to the new server, which 1033 was referred to as the experimental server. If you need to switch 1034 back to the old NFS server, you must now put the "-o" option on 1035 both the mountd and nfsd commands. This can be done using the 1036 mountd_flags and nfs_server_flags rc.conf variables until an 1037 update to the rc scripts is committed, which is coming soon. 1038 103920110418: 1040 The GNU Objective-C runtime library (libobjc), and other Objective-C 1041 related components have been removed from the base system. If you 1042 require an Objective-C library, please use one of the available ports. 1043 104420110331: 1045 ath(4) has been split into bus- and device- modules. if_ath contains 1046 the HAL, the TX rate control and the network device code. if_ath_pci 1047 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1048 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1049 in order to use ath on everything else. 1050 1051 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1052 need to load if_ath and if_ath_pci for ath(4) operation. 1053 105420110314: 1055 As part of the replacement of sysinstall, the process of building 1056 release media has changed significantly. For details, please re-read 1057 release(7), which has been updated to reflect the new build process. 1058 105920110218: 1060 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1061 is the last available version under GPLv2. It brings a number of new 1062 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1063 4.1 and SSE 4.2), better support for powerpc64, a number of new 1064 directives, and lots of other small improvements. See the ChangeLog 1065 file in contrib/binutils for the full details. 1066 106720110218: 1068 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1069 compliant, and will now use half of hash for authentication. 1070 This will break interoperability with all stacks (including all 1071 actual FreeBSD versions) who implement 1072 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1073 authentication). 1074 The only workaround with such peers is to use another HMAC 1075 algorithm for IPsec ("phase 2") authentication. 1076 107720110207: 1078 Remove the uio_yield prototype and symbol. This function has 1079 been misnamed since it was introduced and should not be 1080 globally exposed with this name. The equivalent functionality 1081 is now available using kern_yield(curthread->td_user_pri). 1082 The function remains undocumented. 1083 108420110112: 1085 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1086 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1087 for scalar sysctls is defined but disabled. Code that needs 1088 UQUAD to pass the type checking that must compile on older 1089 systems where the define is not present can check against 1090 __FreeBSD_version >= 900030. 1091 1092 The system dialog(1) has been replaced with a new version previously 1093 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1094 with the previous version, but the libdialog associated with it has 1095 a largely incompatible API. As such, the original version of libdialog 1096 will be kept temporarily as libodialog, until its base system consumers 1097 are replaced or updated. Bump __FreeBSD_version to 900030. 1098 109920110103: 1100 If you are trying to run make universe on a -stable system, and you get 1101 the following warning: 1102 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1103 unknown. config(8) likely too old." 1104 or something similar to it, then you must upgrade your -stable system 1105 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1106 stable/8) or build the config from the latest stable/8 branch and 1107 install it on your system. 1108 1109 Prior to this date, building a current universe on 8-stable system from 1110 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1111 error in the first kernel build phase. A new config on those old 1112 systems will fix that problem for older versions of -current. 1113 111420101228: 1115 The TCP stack has been modified to allow Khelp modules to interact with 1116 it via helper hook points and store per-connection data in the TCP 1117 control block. Bump __FreeBSD_version to 900029. User space tools that 1118 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1119 be recompiled. 1120 112120101114: 1122 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1123 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1124 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1125 to take advantage of it instead of using custom implementations. This 1126 means that these drivers now no longer unconditionally advertise 1127 support for flow control but only do so if flow control is a selected 1128 media option. This was implemented in the generic support that way in 1129 order to allow flow control to be switched on and off via ifconfig(8) 1130 with the PHY specific default to typically off in order to protect 1131 from unwanted effects. Consequently, if you used flow control with 1132 one of the above mentioned drivers you now need to explicitly enable 1133 it, for example via: 1134 ifconfig bge0 media auto mediaopt flowcontrol 1135 1136 Along with the above mentioned changes generic support for setting 1137 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1138 e1000phy(4) as well as ip1000phy(4) have been converted to take 1139 advantage of it. This means that these drivers now no longer take the 1140 link0 parameter for selecting master mode but the master media option 1141 has to be used instead, for example like in the following: 1142 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1143 1144 Selection of master mode now is also available with all other PHY 1145 drivers supporting 1000baseT. 1146 114720101111: 1148 The TCP stack has received a significant update to add support for 1149 modularised congestion control and generally improve the clarity of 1150 congestion control decisions. Bump __FreeBSD_version to 900025. User 1151 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1152 sockstat) need to be recompiled. 1153 115420101002: 1155 The man(1) utility has been replaced by a new version that no longer 1156 uses /etc/manpath.config. Please consult man.conf(5) for how to 1157 migrate local entries to the new format. 1158 115920100928: 1160 The copyright strings printed by login(1) and sshd(8) at the time of a 1161 new connection have been removed to follow other operating systems and 1162 upstream sshd. 1163 116420100915: 1165 A workaround for a fixed ld bug has been removed in kernel code, 1166 so make sure that your system ld is built from sources after 1167 revision 210245 from 2010-07-19 (r211583 if building head kernel 1168 on stable/8, r211584 for stable/7; both from 2010-08-21). 1169 A symptom of incorrect ld version is different addresses for 1170 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1171 117220100913: 1173 The $ipv6_prefer variable in rc.conf(5) has been split into 1174 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1175 1176 The $ip6addrctl_policy is a variable to choose a pre-defined 1177 address selection policy set by ip6addrctl(8). A value 1178 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1179 default is "AUTO". 1180 1181 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1182 flag (see an entry of 20090926) is set on an interface with no 1183 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1184 security reason. If you want IPv6 link-local address on all 1185 interfaces by default, set this to "YES". 1186 1187 The old ipv6_prefer="YES" is equivalent to 1188 ipv6_activate_all_interfaces="YES" and 1189 ip6addrctl_policy="ipv6_prefer". 1190 119120100913: 1192 DTrace has grown support for userland tracing. Due to this, DTrace is 1193 now i386 and amd64 only. 1194 dtruss(1) is now installed by default on those systems and a new 1195 kernel module is needed for userland tracing: fasttrap. 1196 No changes to your kernel config file are necessary to enable 1197 userland tracing, but you might consider adding 'STRIP=' and 1198 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1199 to have informative userland stack traces in DTrace (ustack). 1200 120120100725: 1202 The acpi_aiboost(4) driver has been removed in favor of the new 1203 aibs(4) driver. You should update your kernel configuration file. 1204 120520100722: 1206 BSD grep has been imported to the base system and it is built by 1207 default. It is completely BSD licensed, highly GNU-compatible, uses 1208 less memory than its GNU counterpart and has a small codebase. 1209 However, it is slower than its GNU counterpart, which is mostly 1210 noticeable for larger searches, for smaller ones it is measurable 1211 but not significant. The reason is complex, the most important factor 1212 is that we lack a modern and efficient regex library and GNU 1213 overcomes this by optimizing the searches internally. Future work 1214 on improving the regex performance is planned, for the meantime, 1215 users that need better performance, can build GNU grep instead by 1216 setting the WITH_GNU_GREP knob. 1217 121820100713: 1219 Due to the import of powerpc64 support, all existing powerpc kernel 1220 configuration files must be updated with a machine directive like this: 1221 machine powerpc powerpc 1222 1223 In addition, an updated config(8) is required to build powerpc kernels 1224 after this change. 1225 122620100713: 1227 A new version of ZFS (version 15) has been merged to -HEAD. 1228 This version uses a python library for the following subcommands: 1229 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1230 For full functionality of these commands the following port must 1231 be installed: sysutils/py-zfs 1232 123320100429: 1234 'vm_page's are now hashed by physical address to an array of mutexes. 1235 Currently this is only used to serialize access to hold_count. Over 1236 time the page queue mutex will be peeled away. This changes the size 1237 of pmap on every architecture. And requires all callers of vm_page_hold 1238 and vm_page_unhold to be updated. 1239 124020100402: 1241 WITH_CTF can now be specified in src.conf (not recommended, there 1242 are some problems with static executables), make.conf (would also 1243 affect ports which do not use GNU make and do not override the 1244 compile targets) or in the kernel config (via "makeoptions 1245 WITH_CTF=yes"). 1246 When WITH_CTF was specified there before this was silently ignored, 1247 so make sure that WITH_CTF is not used in places which could lead 1248 to unwanted behavior. 1249 125020100311: 1251 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1252 to allow 32-bit compatibility on non-x86 platforms. All kernel 1253 configurations on amd64 and ia64 platforms using these options must 1254 be modified accordingly. 1255 125620100113: 1257 The utmp user accounting database has been replaced with utmpx, 1258 the user accounting interface standardized by POSIX. 1259 Unfortunately the semantics of utmp and utmpx don't match, 1260 making it practically impossible to support both interfaces. 1261 The user accounting database is used by tools like finger(1), 1262 last(1), talk(1), w(1) and ac(8). 1263 1264 All applications in the base system use utmpx. This means only 1265 local binaries (e.g. from the ports tree) may still use these 1266 utmp database files. These applications must be rebuilt to make 1267 use of utmpx. 1268 1269 After the system has been upgraded, it is safe to remove the old 1270 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1271 assuming their contents is of no importance anymore. Old wtmp 1272 databases can only be used by last(1) and ac(8) after they have 1273 been converted to the new format using wtmpcvt(1). 1274 127520100108: 1276 Introduce the kernel thread "deadlock resolver" (which can be enabled 1277 via the DEADLKRES option, see NOTES for more details) and the 1278 sleepq_type() function for sleepqueues. 1279 128020091202: 1281 The rc.firewall and rc.firewall6 were unified, and 1282 rc.firewall6 and rc.d/ip6fw were removed. 1283 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1284 variables are obsoleted. Instead, the following new rc 1285 variables are added to rc.d/ipfw: 1286 1287 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1288 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1289 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1290 1291 The meanings correspond to the relevant IPv4 variables. 1292 129320091125: 1294 8.0-RELEASE. 1295 129620091113: 1297 The default terminal emulation for syscons(4) has been changed 1298 from cons25 to xterm on all platforms except pc98. This means 1299 that the /etc/ttys file needs to be updated to ensure correct 1300 operation of applications on the console. 1301 1302 The terminal emulation style can be toggled per window by using 1303 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1304 options can be used to change the compile-time default back to 1305 cons25. 1306 1307 To prevent graphical artifacts, make sure the TERM environment 1308 variable is set to match the terminal emulation that is being 1309 performed by syscons(4). 1310 131120091109: 1312 The layout of the structure ieee80211req_scan_result has changed. 1313 Applications that require wireless scan results (e.g. ifconfig(8)) 1314 from net80211 need to be recompiled. 1315 1316 Applications such as wpa_supplicant(8) may require a full world 1317 build without using NO_CLEAN in order to get synchronized with the 1318 new structure. 1319 132020091025: 1321 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1322 There's one kernel module for each firmware. Adding "device iwnfw" 1323 to the kernel configuration file means including all three firmware 1324 images inside the kernel. If you want to include just the one for 1325 your wireless card, use the devices iwn4965fw, iwn5000fw or 1326 iwn5150fw. 1327 132820090926: 1329 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1330 into rc.d/netif. The changes are the following: 1331 1332 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1333 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1334 Note that both variables need the "inet6" keyword at the head. 1335 1336 Do not set $ipv6_network_interfaces manually if you do not 1337 understand what you are doing. It is not needed in most cases. 1338 1339 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1340 they are obsolete. 1341 1342 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1343 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1344 1345 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1346 all configured interfaces have "inet6 accept_rtadv" in the 1347 $ifconfig_IF_ipv6. These are for backward compatibility. 1348 1349 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1350 functionality of interfaces with no corresponding 1351 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1352 and the default address selection policy of ip6addrctl(8) 1353 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1354 Note that if you want to configure IPv6 functionality on the 1355 disabled interfaces after boot, first you need to clear the flag by 1356 using ifconfig(8) like: 1357 1358 ifconfig em0 inet6 -ifdisabled 1359 1360 If YES, the default address selection policy is set as 1361 IPv6-preferred. 1362 1363 The default value of $ipv6_prefer is NO. 1364 1365 4. If your system need to receive Router Advertisement messages, 1366 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1367 scripts automatically invoke rtsol(8) when the interface becomes 1368 UP. The Router Advertisement messages are used for SLAAC 1369 (State-Less Address AutoConfiguration). 1370 137120090922: 1372 802.11s D3.03 support was committed. This is incompatible with the 1373 previous code, which was based on D3.0. 1374 137520090912: 1376 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1377 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1378 control whether accepting Router Advertisement messages or not. 1379 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1380 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1381 The ifconfig(8) utility now supports these flags. 1382 138320090910: 1384 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1385 mount(8) and -a option for df(1) to see them. 1386 138720090825: 1388 The old tunable hw.bus.devctl_disable has been superseded by 1389 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1390 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1391 is 1000. 1392 139320090813: 1394 Remove the option STOP_NMI. The default action is now to use NMI only 1395 for KDB via the newly introduced function stop_cpus_hard() and 1396 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1397 139820090803: 1399 The stable/8 branch created in subversion. This corresponds to the 1400 RELENG_8 branch in CVS. 1401 140220090719: 1403 Bump the shared library version numbers for all libraries that do not 1404 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1405 __FreeBSD_version to 800105. 1406 140720090714: 1408 Due to changes in the implementation of virtual network stack support, 1409 all network-related kernel modules must be recompiled. As this change 1410 breaks the ABI, bump __FreeBSD_version to 800104. 1411 141220090713: 1413 The TOE interface to the TCP syncache has been modified to remove 1414 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1415 The cxgb driver is the only TOE consumer affected by this change, and 1416 needs to be recompiled along with the kernel. As this change breaks 1417 the ABI, bump __FreeBSD_version to 800103. 1418 141920090712: 1420 Padding has been added to struct tcpcb, sackhint and tcpstat in 1421 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1422 maintaining the ABI. However, this change breaks the ABI, so bump 1423 __FreeBSD_version to 800102. User space tools that rely on the size of 1424 any of these structs (e.g. sockstat) need to be recompiled. 1425 142620090630: 1427 The NFS_LEGACYRPC option has been removed along with the old kernel 1428 RPC implementation that this option selected. Kernel configurations 1429 may need to be adjusted. 1430 143120090629: 1432 The network interface device nodes at /dev/net/<interface> have been 1433 removed. All ioctl operations can be performed the normal way using 1434 routing sockets. The kqueue functionality can generally be replaced 1435 with routing sockets. 1436 143720090628: 1438 The documentation from the FreeBSD Documentation Project (Handbook, 1439 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1440 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1441 144220090624: 1443 The ABI of various structures related to the SYSV IPC API have been 1444 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1445 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1446 800100. 1447 144820090622: 1449 Layout of struct vnet has changed as routing related variables were 1450 moved to their own Vimage module. Modules need to be recompiled. Bump 1451 __FreeBSD_version to 800099. 1452 145320090619: 1454 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1455 respectively. As long as no more than 16 groups per process are used, 1456 no changes should be visible. When more than 16 groups are used, old 1457 binaries may fail if they call getgroups() or getgrouplist() with 1458 statically sized storage. Recompiling will work around this, but 1459 applications should be modified to use dynamically allocated storage 1460 for group arrays as POSIX.1-2008 does not cap an implementation's 1461 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1462 1463 NFS and portalfs mounts may also be affected as the list of groups is 1464 truncated to 16. Users of NFS who use more than 16 groups, should 1465 take care that negative group permissions are not used on the exported 1466 file systems as they will not be reliable unless a GSSAPI based 1467 authentication method is used. 1468 146920090616: 1470 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1471 option compiles in the support for adaptive spinning for lockmgrs 1472 which want to enable it. The lockinit() function now accepts the flag 1473 LK_ADAPTIVE in order to make the lock object subject to adaptive 1474 spinning when both held in write and read mode. 1475 147620090613: 1477 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1478 changed. User applications that use this ioctl need to be rebuilt. 1479 148020090611: 1481 The layout of struct thread has changed. Kernel and modules need to 1482 be rebuilt. 1483 148420090608: 1485 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1486 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1487 148820090602: 1489 window(1) has been removed from the base system. It can now be 1490 installed from ports. The port is called misc/window. 1491 149220090601: 1493 The way we are storing and accessing `routing table' entries has 1494 changed. Programs reading the FIB, like netstat, need to be 1495 re-compiled. 1496 149720090601: 1498 A new netisr implementation has been added for FreeBSD 8. Network 1499 file system modules, such as igmp, ipdivert, and others, should be 1500 rebuilt. 1501 Bump __FreeBSD_version to 800096. 1502 150320090530: 1504 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1505 more valid. 1506 150720090530: 1508 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1509 Bump __FreeBSD_version to 800094. 1510 151120090529: 1512 Add mnt_xflag field to 'struct mount'. File system modules need to be 1513 rebuilt. 1514 Bump __FreeBSD_version to 800093. 1515 151620090528: 1517 The compiling option ADAPTIVE_SX has been retired while it has been 1518 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1519 The KPI for sx_init_flags() changes as accepting flags: 1520 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1521 been introduced in order to handle the reversed logic. 1522 Bump __FreeBSD_version to 800092. 1523 152420090527: 1525 Add support for hierarchical jails. Remove global securelevel. 1526 Bump __FreeBSD_version to 800091. 1527 152820090523: 1529 The layout of struct vnet_net has changed, therefore modules 1530 need to be rebuilt. 1531 Bump __FreeBSD_version to 800090. 1532 153320090523: 1534 The newly imported zic(8) produces a new format in the output. Please 1535 run tzsetup(8) to install the newly created data to /etc/localtime. 1536 153720090520: 1538 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1539 hw.usb.* and is now consistent again with previous releases. 1540 154120090520: 1542 802.11 monitor mode support was revised and driver api's were changed. 1543 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1544 of DLT_IEEE802_11. No user-visible data structures were changed but 1545 applications that use DLT_IEEE802_11 may require changes. 1546 Bump __FreeBSD_version to 800088. 1547 154820090430: 1549 The layout of the following structs has changed: sysctl_oid, 1550 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1551 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1552 panics may be experienced. World rebuild is required for 1553 correctly checking networking state from userland. 1554 Bump __FreeBSD_version to 800085. 1555 155620090429: 1557 MLDv2 and Source-Specific Multicast (SSM) have been merged 1558 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1559 The implementation of SSM within FreeBSD's IPv6 stack closely 1560 follows the IPv4 implementation. 1561 1562 For kernel developers: 1563 1564 * The most important changes are that the ip6_output() and 1565 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1566 and this lock has been downgraded to a non-recursive mutex. 1567 1568 * As with the changes to the IPv4 stack to support SSM, filtering 1569 of inbound multicast traffic must now be performed by transport 1570 protocols within the IPv6 stack. This does not apply to TCP and 1571 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1572 1573 * The KPIs used by IPv6 multicast are similar to those used by 1574 the IPv4 stack, with the following differences: 1575 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1576 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1577 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1578 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1579 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1580 for MLDv1 have an additional 'timer' argument which is used to 1581 jitter the initial membership report for the solicited-node 1582 multicast membership on-link. 1583 * This is not strictly needed for MLDv2, which already jitters 1584 its report transmissions. However, the 'timer' argument is 1585 preserved in case MLDv1 is active on the interface. 1586 1587 * The KAME linked-list based IPv6 membership implementation has 1588 been refactored to use a vector similar to that used by the IPv4 1589 stack. 1590 Code which maintains a list of its own multicast memberships 1591 internally, e.g. carp, has been updated to reflect the new 1592 semantics. 1593 1594 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1595 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1596 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1597 implementation constraint which needs to be addressed in HEAD. 1598 1599 For application developers: 1600 1601 * The changes are broadly similar to those made for the IPv4 1602 stack. 1603 1604 * The use of IPv4 and IPv6 multicast socket options on the same 1605 socket, using mapped addresses, HAS NOT been tested or supported. 1606 1607 * There are a number of issues with the implementation of various 1608 IPv6 multicast APIs which need to be resolved in the API surface 1609 before the implementation is fully compatible with KAME userland 1610 use, and these are mostly to do with interface index treatment. 1611 1612 * The literature available discusses the use of either the delta / ASM 1613 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1614 using setsourcefilter(3)/getsourcefilter(3). For more information 1615 please refer to RFC 3768, 'Socket Interface Extensions for 1616 Multicast Source Filters'. 1617 1618 * Applications which use the published RFC 3678 APIs should be fine. 1619 1620 For systems administrators: 1621 1622 * The mtest(8) utility has been refactored to support IPv6, in 1623 addition to IPv4. Interface addresses are no longer accepted 1624 as arguments, their names must be used instead. The utility 1625 will map the interface name to its first IPv4 address as 1626 returned by getifaddrs(3). 1627 1628 * The ifmcstat(8) utility has also been updated to print the MLDv2 1629 endpoint state and source filter lists via sysctl(3). 1630 1631 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1632 loopback of IPv6 multicast datagrams by default; it defaults to 1 1633 to preserve the existing behaviour. Disabling multicast loopback is 1634 recommended for optimal system performance. 1635 1636 * The IPv6 MROUTING code has been changed to examine this sysctl 1637 instead of attempting to perform a group lookup before looping 1638 back forwarded datagrams. 1639 1640 Bump __FreeBSD_version to 800084. 1641 164220090422: 1643 Implement low-level Bluetooth HCI API. 1644 Bump __FreeBSD_version to 800083. 1645 164620090419: 1647 The layout of struct malloc_type, used by modules to register new 1648 memory allocation types, has changed. Most modules will need to 1649 be rebuilt or panics may be experienced. 1650 Bump __FreeBSD_version to 800081. 1651 165220090415: 1653 Anticipate overflowing inp_flags - add inp_flags2. 1654 This changes most offsets in inpcb, so checking v4 connection 1655 state will require a world rebuild. 1656 Bump __FreeBSD_version to 800080. 1657 165820090415: 1659 Add an llentry to struct route and struct route_in6. Modules 1660 embedding a struct route will need to be recompiled. 1661 Bump __FreeBSD_version to 800079. 1662 166320090414: 1664 The size of rt_metrics_lite and by extension rtentry has changed. 1665 Networking administration apps will need to be recompiled. 1666 The route command now supports show as an alias for get, weighting 1667 of routes, sticky and nostick flags to alter the behavior of stateful 1668 load balancing. 1669 Bump __FreeBSD_version to 800078. 1670 167120090408: 1672 Do not use Giant for kbdmux(4) locking. This is wrong and 1673 apparently causing more problems than it solves. This will 1674 re-open the issue where interrupt handlers may race with 1675 kbdmux(4) in polling mode. Typical symptoms include (but 1676 not limited to) duplicated and/or missing characters when 1677 low level console functions (such as gets) are used while 1678 interrupts are enabled (for example geli password prompt, 1679 mountroot prompt etc.). Disabling kbdmux(4) may help. 1680 168120090407: 1682 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1683 kernel modules referencing any of the above need to be recompiled. 1684 Bump __FreeBSD_version to 800075. 1685 168620090320: 1687 GEOM_PART has become the default partition slicer for storage devices, 1688 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1689 introduces some changes: 1690 1691 MSDOS/EBR: the devices created from MSDOS extended partition entries 1692 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1693 to devices with offset-based names. fstabs may need to be modified. 1694 1695 BSD: the "geometry does not match label" warning is harmless in most 1696 cases but it points to problems in file system misalignment with 1697 disk geometry. The "c" partition is now implicit, covers the whole 1698 top-level drive and cannot be (mis)used by users. 1699 1700 General: Kernel dumps are now not allowed to be written to devices 1701 whose partition types indicate they are meant to be used for file 1702 systems (or, in case of MSDOS partitions, as something else than 1703 the "386BSD" type). 1704 1705 Most of these changes date approximately from 200812. 1706 170720090319: 1708 The uscanner(4) driver has been removed from the kernel. This follows 1709 Linux removing theirs in 2.6 and making libusb the default interface 1710 (supported by sane). 1711 171220090319: 1713 The multicast forwarding code has been cleaned up. netstat(1) 1714 only relies on KVM now for printing bandwidth upcall meters. 1715 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1716 ip6_mroute_mod respectively. The config(5) options for statically 1717 compiling this code remain the same, i.e. 'options MROUTING'. 1718 171920090315: 1720 Support for the IFF_NEEDSGIANT network interface flag has been 1721 removed, which means that non-MPSAFE network device drivers are no 1722 longer supported. In particular, if_ar, if_sr, and network device 1723 drivers from the old (legacy) USB stack can no longer be built or 1724 used. 1725 172620090313: 1727 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1728 a bunch of new language catalog files have also been added. 1729 This means that some common libc messages are now localized and 1730 they depend on the LC_MESSAGES environmental variable. 1731 173220090313: 1733 The k8temp(4) driver has been renamed to amdtemp(4) since 1734 support for Family 10 and Family 11 CPU families was added. 1735 173620090309: 1737 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1738 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1739 1740 For kernel developers, the most important changes are that the 1741 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1742 and this lock has been downgraded to a non-recursive mutex. 1743 1744 Transport protocols (UDP, Raw IP) are now responsible for filtering 1745 inbound multicast traffic according to group membership and source 1746 filters. The imo_multicast_filter() KPI exists for this purpose. 1747 Transports which do not use multicast (SCTP, TCP) already reject 1748 multicast by default. Forwarding and receive performance may improve 1749 as a mutex acquisition is no longer needed in the ip_input() 1750 low-level input path. in_addmulti() and in_delmulti() are shimmed 1751 to new KPIs which exist to support SSM in-kernel. 1752 1753 For application developers, it is recommended that loopback of 1754 multicast datagrams be disabled for best performance, as this 1755 will still cause the lock to be taken for each looped-back 1756 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1757 be tuned to 0 to disable loopback by default; it defaults to 1 1758 to preserve the existing behaviour. 1759 1760 For systems administrators, to obtain best performance with 1761 multicast reception and multiple groups, it is always recommended 1762 that a card with a suitably precise hash filter is used. Hash 1763 collisions will still result in the lock being taken within the 1764 transport protocol input path to check group membership. 1765 1766 If deploying FreeBSD in an environment with IGMP snooping switches, 1767 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1768 enabled; this forces 224.0.0.0/24 group membership to be announced 1769 via IGMP. 1770 1771 The size of 'struct igmpstat' has changed; netstat needs to be 1772 recompiled to reflect this. 1773 Bump __FreeBSD_version to 800070. 1774 177520090309: 1776 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1777 updated to use it. This requires a buildworld/installworld in order to 1778 update the library and dependencies (usbconfig, etc). Its advisable to 1779 rebuild all ports which uses libusb. More specific directions are given 1780 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1781 libusb are no longer required and can be removed. 1782 178320090302: 1784 A workaround is committed to allow the creation of System V shared 1785 memory segment of size > 2 GB on the 64-bit architectures. 1786 Due to a limitation of the existing ABI, the shm_segsz member 1787 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1788 wrong for large segments. Note that limits must be explicitly 1789 raised to allow such segments to be created. 1790 179120090301: 1792 The layout of struct ifnet has changed, requiring a rebuild of all 1793 network device driver modules. 1794 179520090227: 1796 The /dev handling for the new USB stack has changed, a 1797 buildworld/installworld is required for libusb20. 1798 179920090223: 1800 The new USB2 stack has now been permanently moved in and all kernel and 1801 module names reverted to their previous values (eg, usb, ehci, ohci, 1802 ums, ...). The old usb stack can be compiled in by prefixing the name 1803 with the letter 'o', the old usb modules have been removed. 1804 Updating entry 20090216 for xorg and 20090215 for libmap may still 1805 apply. 1806 180720090217: 1808 The rc.conf(5) option if_up_delay has been renamed to 1809 defaultroute_delay to better reflect its purpose. If you have 1810 customized this setting in /etc/rc.conf you need to update it to 1811 use the new name. 1812 181320090216: 1814 xorg 7.4 wants to configure its input devices via hald which does not 1815 yet work with USB2. If the keyboard/mouse does not work in xorg then 1816 add 1817 Option "AllowEmptyInput" "off" 1818 to your ServerLayout section. This will cause X to use the configured 1819 kbd and mouse sections from your xorg.conf. 1820 182120090215: 1822 The GENERIC kernels for all architectures now default to the new USB2 1823 stack. No kernel config options or code have been removed so if a 1824 problem arises please report it and optionally revert to the old USB 1825 stack. If you are loading USB kernel modules or have a custom kernel 1826 that includes GENERIC then ensure that usb names are also changed over, 1827 eg uftdi -> usb2_serial_ftdi. 1828 1829 Older programs linked against the ports libusb 0.1 need to be 1830 redirected to the new stack's libusb20. /etc/libmap.conf can 1831 be used for this: 1832 # Map old usb library to new one for usb2 stack 1833 libusb-0.1.so.8 libusb20.so.1 1834 183520090209: 1836 All USB ethernet devices now attach as interfaces under the name ueN 1837 (eg. ue0). This is to provide a predictable name as vendors often 1838 change usb chipsets in a product without notice. 1839 184020090203: 1841 The ichsmb(4) driver has been changed to require SMBus slave 1842 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1843 All of the other SMBus controller drivers require left-justified 1844 slave addresses, so this change makes all the drivers provide the 1845 same interface. 1846 184720090201: 1848 INET6 statistics (struct ip6stat) was updated. 1849 netstat(1) needs to be recompiled. 1850 185120090119: 1852 NTFS has been removed from GENERIC kernel on amd64 to match 1853 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1854 will load ntfs.ko module automatically when NTFS support is 1855 actually needed, unless ntfs.ko is not installed or security 1856 level prohibits loading kernel modules. If either is the case, 1857 "options NTFS" has to be added into kernel config. 1858 185920090115: 1860 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1861 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1862 800061. User space tools that rely on the size of struct tcpcb in 1863 tcp_var.h (e.g. sockstat) need to be recompiled. 1864 186520081225: 1866 ng_tty(4) module updated to match the new TTY subsystem. 1867 Due to API change, user-level applications must be updated. 1868 New API support added to mpd5 CVS and expected to be present 1869 in next mpd5.3 release. 1870 187120081219: 1872 With __FreeBSD_version 800060 the makefs tool is part of 1873 the base system (it was a port). 1874 187520081216: 1876 The afdata and ifnet locks have been changed from mutexes to 1877 rwlocks, network modules will need to be re-compiled. 1878 187920081214: 1880 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1881 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1882 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1883 architecture and 40 bytes on 64-bit architecture. The userland 1884 applications "arp" and "ndp" have been updated accordingly. 1885 The output from "netstat -r" shows only routing entries and 1886 none of the L2 information. 1887 188820081130: 1889 __FreeBSD_version 800057 marks the switchover from the 1890 binary ath hal to source code. Users must add the line: 1891 1892 options AH_SUPPORT_AR5416 1893 1894 to their kernel config files when specifying: 1895 1896 device ath_hal 1897 1898 The ath_hal module no longer exists; the code is now compiled 1899 together with the driver in the ath module. It is now 1900 possible to tailor chip support (i.e. reduce the set of chips 1901 and thereby the code size); consult ath_hal(4) for details. 1902 190320081121: 1904 __FreeBSD_version 800054 adds memory barriers to 1905 <machine/atomic.h>, new interfaces to ifnet to facilitate 1906 multiple hardware transmit queues for cards that support 1907 them, and a lock-less ring-buffer implementation to 1908 enable drivers to more efficiently manage queueing of 1909 packets. 1910 191120081117: 1912 A new version of ZFS (version 13) has been merged to -HEAD. 1913 This version has zpool attribute "listsnapshots" off by 1914 default, which means "zfs list" does not show snapshots, 1915 and is the same as Solaris behavior. 1916 191720081028: 1918 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1919 192020081009: 1921 The uhci, ohci, ehci and slhci USB Host controller drivers have 1922 been put into separate modules. If you load the usb module 1923 separately through loader.conf you will need to load the 1924 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1925 controller add the following to loader.conf: 1926 1927 uhci_load="YES" 1928 ehci_load="YES" 1929 193020081009: 1931 The ABI used by the PMC toolset has changed. Please keep 1932 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1933 sync. 1934 193520081009: 1936 atapci kernel module now includes only generic PCI ATA 1937 driver. AHCI driver moved to ataahci kernel module. 1938 All vendor-specific code moved into separate kernel modules: 1939 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1940 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1941 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1942 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1943 194420080820: 1945 The TTY subsystem of the kernel has been replaced by a new 1946 implementation, which provides better scalability and an 1947 improved driver model. Most common drivers have been migrated to 1948 the new TTY subsystem, while others have not. The following 1949 drivers have not yet been ported to the new TTY layer: 1950 1951 PCI/ISA: 1952 cy, digi, rc, rp, sio 1953 1954 USB: 1955 ubser, ucycom 1956 1957 Line disciplines: 1958 ng_h4, ng_tty, ppp, sl, snp 1959 1960 Adding these drivers to your kernel configuration file shall 1961 cause compilation to fail. 1962 196320080818: 1964 ntpd has been upgraded to 4.2.4p5. 1965 196620080801: 1967 OpenSSH has been upgraded to 5.1p1. 1968 1969 For many years, FreeBSD's version of OpenSSH preferred DSA 1970 over RSA for host and user authentication keys. With this 1971 upgrade, we've switched to the vendor's default of RSA over 1972 DSA. This may cause upgraded clients to warn about unknown 1973 host keys even for previously known hosts. Users should 1974 follow the usual procedure for verifying host keys before 1975 accepting the RSA key. 1976 1977 This can be circumvented by setting the "HostKeyAlgorithms" 1978 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1979 command line. 1980 1981 Please note that the sequence of keys offered for 1982 authentication has been changed as well. You may want to 1983 specify IdentityFile in a different order to revert this 1984 behavior. 1985 198620080713: 1987 The sio(4) driver has been removed from the i386 and amd64 1988 kernel configuration files. This means uart(4) is now the 1989 default serial port driver on those platforms as well. 1990 1991 To prevent collisions with the sio(4) driver, the uart(4) driver 1992 uses different names for its device nodes. This means the 1993 onboard serial port will now most likely be called "ttyu0" 1994 instead of "ttyd0". You may need to reconfigure applications to 1995 use the new device names. 1996 1997 When using the serial port as a boot console, be sure to update 1998 /boot/device.hints and /etc/ttys before booting the new kernel. 1999 If you forget to do so, you can still manually specify the hints 2000 at the loader prompt: 2001 2002 set hint.uart.0.at="isa" 2003 set hint.uart.0.port="0x3F8" 2004 set hint.uart.0.flags="0x10" 2005 set hint.uart.0.irq="4" 2006 boot -s 2007 200820080609: 2009 The gpt(8) utility has been removed. Use gpart(8) to partition 2010 disks instead. 2011 201220080603: 2013 The version that Linuxulator emulates was changed from 2.4.2 2014 to 2.6.16. If you experience any problems with Linux binaries 2015 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2016 if it fixes the problem contact emulation mailing list. 2017 201820080525: 2019 ISDN4BSD (I4B) was removed from the src tree. You may need to 2020 update a your kernel configuration and remove relevant entries. 2021 202220080509: 2023 I have checked in code to support multiple routing tables. 2024 See the man pages setfib(1) and setfib(2). 2025 This is a hopefully backwards compatible version, 2026 but to make use of it you need to compile your kernel 2027 with options ROUTETABLES=2 (or more up to 16). 2028 202920080420: 2030 The 802.11 wireless support was redone to enable multi-bss 2031 operation on devices that are capable. The underlying device 2032 is no longer used directly but instead wlanX devices are 2033 cloned with ifconfig. This requires changes to rc.conf files. 2034 For example, change: 2035 ifconfig_ath0="WPA DHCP" 2036 to 2037 wlans_ath0=wlan0 2038 ifconfig_wlan0="WPA DHCP" 2039 see rc.conf(5) for more details. In addition, mergemaster of 2040 /etc/rc.d is highly recommended. Simultaneous update of userland 2041 and kernel wouldn't hurt either. 2042 2043 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2044 modules were merged into the base wlan module. All references 2045 to these modules (e.g. in kernel config files) must be removed. 2046 204720080408: 2048 psm(4) has gained write(2) support in native operation level. 2049 Arbitrary commands can be written to /dev/psm%d and status can 2050 be read back from it. Therefore, an application is responsible 2051 for status validation and error recovery. It is a no-op in 2052 other operation levels. 2053 205420080312: 2055 Support for KSE threading has been removed from the kernel. To 2056 run legacy applications linked against KSE libmap.conf may 2057 be used. The following libmap.conf may be used to ensure 2058 compatibility with any prior release: 2059 2060 libpthread.so.1 libthr.so.1 2061 libpthread.so.2 libthr.so.2 2062 libkse.so.3 libthr.so.3 2063 206420080301: 2065 The layout of struct vmspace has changed. This affects libkvm 2066 and any executables that link against libkvm and use the 2067 kvm_getprocs() function. In particular, but not exclusively, 2068 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2069 The effects are minimal, but it's advisable to upgrade world 2070 nonetheless. 2071 207220080229: 2073 The latest em driver no longer has support in it for the 2074 82575 adapter, this is now moved to the igb driver. The 2075 split was done to make new features that are incompatible 2076 with older hardware easier to do. 2077 207820080220: 2079 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2080 likewise the kernel option is now GEOM_LINUX_LVM. 2081 208220080211: 2083 The default NFS mount mode has changed from UDP to TCP for 2084 increased reliability. If you rely on (insecurely) NFS 2085 mounting across a firewall you may need to update your 2086 firewall rules. 2087 208820080208: 2089 Belatedly note the addition of m_collapse for compacting 2090 mbuf chains. 2091 209220080126: 2093 The fts(3) structures have been changed to use adequate 2094 integer types for their members and so to be able to cope 2095 with huge file trees. The old fts(3) ABI is preserved 2096 through symbol versioning in libc, so third-party binaries 2097 using fts(3) should still work, although they will not take 2098 advantage of the extended types. At the same time, some 2099 third-party software might fail to build after this change 2100 due to unportable assumptions made in its source code about 2101 fts(3) structure members. Such software should be fixed 2102 by its vendor or, in the worst case, in the ports tree. 2103 FreeBSD_version 800015 marks this change for the unlikely 2104 case that a portable fix is impossible. 2105 210620080123: 2107 To upgrade to -current after this date, you must be running 2108 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2109 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2110 211120071128: 2112 The ADAPTIVE_GIANT kernel option has been retired because its 2113 functionality is the default now. 2114 211520071118: 2116 The AT keyboard emulation of sunkbd(4) has been turned on 2117 by default. In order to make the special symbols of the Sun 2118 keyboards driven by sunkbd(4) work under X these now have 2119 to be configured the same way as Sun USB keyboards driven 2120 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2121 2122 Option "XkbLayout" "us" 2123 Option "XkbRules" "xorg" 2124 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2125 212620071024: 2127 It has been decided that it is desirable to provide ABI 2128 backwards compatibility to the FreeBSD 4/5/6 versions of the 2129 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2130 broken with the introduction of PCI domain support (see the 2131 20070930 entry). Unfortunately, this required the ABI of 2132 PCIOCGETCONF to be broken again in order to be able to 2133 provide backwards compatibility to the old version of that 2134 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2135 again. As for prominent ports this affects neither pciutils 2136 nor xorg-server this time, the hal port needs to be rebuilt 2137 however. 2138 213920071020: 2140 The misnamed kthread_create() and friends have been renamed 2141 to kproc_create() etc. Many of the callers already 2142 used kproc_start().. 2143 I will return kthread_create() and friends in a while 2144 with implementations that actually create threads, not procs. 2145 Renaming corresponds with version 800002. 2146 214720071010: 2148 RELENG_7 branched. 2149 2150COMMON ITEMS: 2151 2152 General Notes 2153 ------------- 2154 Avoid using make -j when upgrading. While generally safe, there are 2155 sometimes problems using -j to upgrade. If your upgrade fails with 2156 -j, please try again without -j. From time to time in the past there 2157 have been problems using -j with buildworld and/or installworld. This 2158 is especially true when upgrading between "distant" versions (eg one 2159 that cross a major release boundary or several minor releases, or when 2160 several months have passed on the -current branch). 2161 2162 Sometimes, obscure build problems are the result of environment 2163 poisoning. This can happen because the make utility reads its 2164 environment when searching for values for global variables. To run 2165 your build attempts in an "environmental clean room", prefix all make 2166 commands with 'env -i '. See the env(1) manual page for more details. 2167 2168 When upgrading from one major version to another it is generally best 2169 to upgrade to the latest code in the currently installed branch first, 2170 then do an upgrade to the new branch. This is the best-tested upgrade 2171 path, and has the highest probability of being successful. Please try 2172 this approach before reporting problems with a major version upgrade. 2173 2174 When upgrading a live system, having a root shell around before 2175 installing anything can help undo problems. Not having a root shell 2176 around can lead to problems if pam has changed too much from your 2177 starting point to allow continued authentication after the upgrade. 2178 2179 ZFS notes 2180 --------- 2181 When upgrading the boot ZFS pool to a new version, always follow 2182 these two steps: 2183 2184 1.) recompile and reinstall the ZFS boot loader and boot block 2185 (this is part of "make buildworld" and "make installworld") 2186 2187 2.) update the ZFS boot block on your boot drive 2188 2189 The following example updates the ZFS boot block on the first 2190 partition (freebsd-boot) of a GPT partitioned drive ad0: 2191 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2192 2193 Non-boot pools do not need these updates. 2194 2195 To build a kernel 2196 ----------------- 2197 If you are updating from a prior version of FreeBSD (even one just 2198 a few days old), you should follow this procedure. It is the most 2199 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2200 2201 make kernel-toolchain 2202 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2203 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2204 2205 To test a kernel once 2206 --------------------- 2207 If you just want to boot a kernel once (because you are not sure 2208 if it works, or if you want to boot a known bad kernel to provide 2209 debugging information) run 2210 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2211 nextboot -k testkernel 2212 2213 To just build a kernel when you know that it won't mess you up 2214 -------------------------------------------------------------- 2215 This assumes you are already running a CURRENT system. Replace 2216 ${arch} with the architecture of your machine (e.g. "i386", 2217 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2218 2219 cd src/sys/${arch}/conf 2220 config KERNEL_NAME_HERE 2221 cd ../compile/KERNEL_NAME_HERE 2222 make depend 2223 make 2224 make install 2225 2226 If this fails, go to the "To build a kernel" section. 2227 2228 To rebuild everything and install it on the current system. 2229 ----------------------------------------------------------- 2230 # Note: sometimes if you are running current you gotta do more than 2231 # is listed here if you are upgrading from a really old current. 2232 2233 <make sure you have good level 0 dumps> 2234 make buildworld 2235 make kernel KERNCONF=YOUR_KERNEL_HERE 2236 [1] 2237 <reboot in single user> [3] 2238 mergemaster -p [5] 2239 make installworld 2240 mergemaster -i [4] 2241 make delete-old [6] 2242 <reboot> 2243 2244 To cross-install current onto a separate partition 2245 -------------------------------------------------- 2246 # In this approach we use a separate partition to hold 2247 # current's root, 'usr', and 'var' directories. A partition 2248 # holding "/", "/usr" and "/var" should be about 2GB in 2249 # size. 2250 2251 <make sure you have good level 0 dumps> 2252 <boot into -stable> 2253 make buildworld 2254 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2255 <maybe newfs current's root partition> 2256 <mount current's root partition on directory ${CURRENT_ROOT}> 2257 make installworld DESTDIR=${CURRENT_ROOT} 2258 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2259 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2260 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2261 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2262 <reboot into current> 2263 <do a "native" rebuild/install as described in the previous section> 2264 <maybe install compatibility libraries from ports/misc/compat*> 2265 <reboot> 2266 2267 2268 To upgrade in-place from stable to current 2269 ---------------------------------------------- 2270 <make sure you have good level 0 dumps> 2271 make buildworld [9] 2272 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2273 [1] 2274 <reboot in single user> [3] 2275 mergemaster -p [5] 2276 make installworld 2277 mergemaster -i [4] 2278 make delete-old [6] 2279 <reboot> 2280 2281 Make sure that you've read the UPDATING file to understand the 2282 tweaks to various things you need. At this point in the life 2283 cycle of current, things change often and you are on your own 2284 to cope. The defaults can also change, so please read ALL of 2285 the UPDATING entries. 2286 2287 Also, if you are tracking -current, you must be subscribed to 2288 freebsd-current@freebsd.org. Make sure that before you update 2289 your sources that you have read and understood all the recent 2290 messages there. If in doubt, please track -stable which has 2291 much fewer pitfalls. 2292 2293 [1] If you have third party modules, such as vmware, you 2294 should disable them at this point so they don't crash your 2295 system on reboot. 2296 2297 [3] From the bootblocks, boot -s, and then do 2298 fsck -p 2299 mount -u / 2300 mount -a 2301 cd src 2302 adjkerntz -i # if CMOS is wall time 2303 Also, when doing a major release upgrade, it is required that 2304 you boot into single user mode to do the installworld. 2305 2306 [4] Note: This step is non-optional. Failure to do this step 2307 can result in a significant reduction in the functionality of the 2308 system. Attempting to do it by hand is not recommended and those 2309 that pursue this avenue should read this file carefully, as well 2310 as the archives of freebsd-current and freebsd-hackers mailing lists 2311 for potential gotchas. The -U option is also useful to consider. 2312 See mergemaster(8) for more information. 2313 2314 [5] Usually this step is a noop. However, from time to time 2315 you may need to do this if you get unknown user in the following 2316 step. It never hurts to do it all the time. You may need to 2317 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2318 install) after the buildworld before this step if you last updated 2319 from current before 20130425 or from -stable before 20130430. 2320 2321 [6] This only deletes old files and directories. Old libraries 2322 can be deleted by "make delete-old-libs", but you have to make 2323 sure that no program is using those libraries anymore. 2324 2325 [8] In order to have a kernel that can run the 4.x binaries needed to 2326 do an installworld, you must include the COMPAT_FREEBSD4 option in 2327 your kernel. Failure to do so may leave you with a system that is 2328 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2329 required to run the 5.x binaries on more recent kernels. And so on 2330 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2331 2332 Make sure that you merge any new devices from GENERIC since the 2333 last time you updated your kernel config file. 2334 2335 [9] When checking out sources, you must include the -P flag to have 2336 cvs prune empty directories. 2337 2338 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2339 "?=" instead of the "=" assignment operator, so that buildworld can 2340 override the CPUTYPE if it needs to. 2341 2342 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2343 not on the command line, or in /etc/make.conf. buildworld will 2344 warn if it is improperly defined. 2345FORMAT: 2346 2347This file contains a list, in reverse chronological order, of major 2348breakages in tracking -current. It is not guaranteed to be a complete 2349list of such breakages, and only contains entries since October 10, 2007. 2350If you need to see UPDATING entries from before that date, you will need 2351to fetch an UPDATING file from an older FreeBSD release. 2352 2353Copyright information: 2354 2355Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2356 2357Redistribution, publication, translation and use, with or without 2358modification, in full or in part, in any form or format of this 2359document are permitted without further permission from the author. 2360 2361THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2362IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2363WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2364DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2365INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2366(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2367SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2368HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2369STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2370IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2371POSSIBILITY OF SUCH DAMAGE. 2372 2373Contact Warner Losh if you have any questions about your use of 2374this document. 2375 2376$FreeBSD: releng/10.2/UPDATING 303304 2016-07-25 15:04:17Z delphij $ 2377