UPDATING revision 298770
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 1920150429 p32 FreeBSD-SA-16:16.ntp 20 21 Fix multiple vulnerabilities of ntp. 22 2320160316 p31 FreeBSD-SA-16:14.openssh-xauth 24 FreeBSD-SA-16:15.sysarch 25 FreeBSD-EN-16:04.hyperv 26 27 Fix OpenSSH xauth(1) command injection. [SA-16:14] 28 Fix incorrect argument validation in sysarch(2). [SA-16:15] 29 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04] 30 3120160303 p30 FreeBSD-SA-16:12.openssl 32 33 Fix multiple vulnerabilities of OpenSSL. 34 3520160130 p29 FreeBSD-SA-16:11.openssl 36 37 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 38 3920160127 p28 FreeBSD-SA-16:09.ntp 40 FreeBSD-SA-16:10.linux 41 42 Fix multiple vulnerabilities of ntp. [SA-16:09] 43 44 Fix Linux compatibility layer issetugid(2) system call 45 vulnerability. [SA-16:10] 46 4720160114 p27 FreeBSD-SA-16:07.openssh 48 49 Fix OpenSSH client information leak. [SA-16:07] 50 5120160114 p26 FreeBSD-EN-16:02.pf 52 FreeBSD-EN-16:03.yplib 53 FreeBSD-SA-16:01.sctp 54 FreeBSD-SA-16:02.ntp 55 FreeBSD-SA-16:03.linux 56 FreeBSD-SA-16:04.linux 57 FreeBSD-SA-16:05.tcp 58 FreeBSD-SA-16:06.bsnmpd 59 60 Fix pf(4) generating bad TCP checksums. [EN-16:02] 61 Fix infinite loop in YP/NIS client library. [EN-16:03] 62 Fix remote denial of service in SCTP. [SA-16:01] 63 Update NTP to 4.2.8p5. [SA-16:02] 64 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 65 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 66 Fix crash in TCP MD5 signatures. [SA-16:05] 67 Fix insecure default permissions for snmpd.config. [SA-16:06] 68 6920151205 p25 FreeBSD-SA-15:26.openssl 70 71 Fix multiple OpenSSL vulnerabilities. [SA-15:26] 72 7320151104 p24 FreeBSD-SA-15:25.ntp [revised] 74 FreeBSD-EN-15:19.kqueue 75 FreeBSD-EN-15:20.vm 76 77 Fix regression in ntpd(8) lacking support for RAWDCF reference 78 clock in 10.1-RELEASE-p23. [SA-15:25.ntp] 79 80 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 81 82 Fix applications exiting due to segmentation violation on a correct 83 memory address. [EN-15:20] 84 8520151026: p23 FreeBSD-SA-15:25.ntp 86 87 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 88 89 The configuration file syntax has been changed, thus mergemaster 90 run is recommended. Now the "kod" parameter requires "limited" 91 parameter. If the ntp.conf is not updated, the ntpd will run 92 successfully, but with KoD disabled. 93 9420151002: p22 FreeBSD-SA-15:24.rpcbind [revised] 95 Revised patch to address a regression that prevents NIS from working. 96 9720150929: p21 FreeBSD-SA-15:24.rpcbind 98 99 Fix rpcbind(8) remote denial of service. [SA-15:24] 100 10120150916: p20 FreeBSD-EN-15:18.pkg 102 103 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 104 10520150825: p19 FreeBSD-SA-15:21.amd64 106 FreeBSD-SA-15:22.openssh 107 FreeBSD-EN-15:14.ixgbe 108 FreeBSD-EN-15:15.pkg 109 110 Fix local privilege escalation in IRET handler. [SA-15:21] 111 112 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 113 114 Disabled ixgbe(4) flow-director support. [EN-15:14] 115 116 Fix insufficient check of unsupported pkg(7) signature methods. 117 [EN-15:15] 118 11920150818: p18 FreeBSD-SA-15:20.expat 120 121 Fix multiple integer overflows in expat (libbsdxml) XML parser. 122 [SA-15:20] 123 12420150805: p17 FreeBSD-SA-15:18.bsdpatch 125 FreeBSD-SA-15:19.routed 126 127 Fix patch(1) shell injection vulnerability via ed(1). 128 [SA-15:18] 129 130 Fix routed remote denial of service vulnerability. [SA-15:19] 131 13220150728: p16 FreeBSD-SA-15:14.bsdpatch 133 FreeBSD-SA-15:15.tcp 134 FreeBSD-SA-15:16.openssh 135 136 Fix patch(1) shell injection vulnerability. [SA-15:14] 137 138 Fix resource exhaustion in TCP reassembly. [SA-15:15] 139 140 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 141 14220150721: p15 FreeBSD-SA-15:13.tcp 143 144 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 145 [SA-15:13] 146 14720150630: p14 FreeBSD-EN-15:08.sendmail [revised] 148 FreeBSD-EN-15:09.xlocale 149 FreeBSD-EN-15:10.iconv 150 151 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 152 153 Fix inconsistency between locale and rune locale states. 154 [EN-15:09] 155 156 Improved iconv(3) UTF-7 support. [EN-15:10] 157 15820150618: p13 FreeBSD-EN-15:08.sendmail 159 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 160 16120150612: p12 FreeBSD-SA-15:10.openssl 162 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 163 16420150609: p11 FreeBSD-EN-15:06.file 165 FreeBSD-EN-15:07.zfs 166 167 Updated base system file(1) to 5.22 to address multiple denial 168 of service issues. [EN-15:06] 169 170 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 171 [EN-15:07] 172 17320150513: p10 FreeBSD-EN-15:04.freebsd-update 174 FreeBSD-EN-15:05.ufs 175 176 Fix bug with freebsd-update(8) that does not ensure the previous 177 upgrade was completed. [EN-15:04] 178 179 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 180 18120150407: p9 FreeBSD-SA-15:04.igmp [revised] 182 FreeBSD-SA-15:07.ntp 183 FreeBSD-SA-15:08.bsdinstall 184 FreeBSD-SA-15:09.ipv6 185 186 Improved patch for SA-15:04.igmp. 187 188 Fix multiple vulnerabilities of ntp. [SA-15:07] 189 190 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 191 192 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 193 19420150320: p8 195 Fix patch for SA-15:06.openssl. 196 19720150319: p7 FreeBSD-SA-15:06.openssl 198 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 199 20020150225: p6 FreeBSD-SA-15:04.igmp 201 FreeBSD-EN-15:01.vt 202 FreeBSD-EN-15:02.openssl 203 FreeBSD-EN-15:03.freebsd-update 204 205 Fix integer overflow in IGMP protocol. [SA-15:04] 206 207 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 208 209 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 210 211 Fix freebsd-update libraries update ordering issue. [EN-15:03] 212 21320150127: p5 FreeBSD-SA-15:02.kmem 214 FreeBSD-SA-15:03.sctp 215 216 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 217 vulnerability. [SA-15:02] 218 219 Fix SCTP stream reset vulnerability. [SA-15:03] 220 22120150114: p4 FreeBSD-SA-15:01.openssl 222 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 223 22420141223: p3 FreeBSD-SA-14:31.ntp 225 FreeBSD-EN-14:13.freebsd-update 226 227 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 228 Fix directory deletion issue in freebsd-update. [EN-14:13] 229 23020141217: p2 FreeBSD-SA-14:30.unbound 231 Fix unbound remote denial of service vulnerability. 232 23320141210: p1 FreeBSD-SA-14:27.stdio 234 FreeBSD-SA-14:28.file 235 236 Fix buffer overflow in stdio. [SA-14:27] 237 238 Fix multiple vulnerabilities in file(1) and libmagic(3). 239 [SA-14:28] 240 24120140904: 242 The ofwfb driver, used to provide a graphics console on PowerPC when 243 using vt(4), no longer allows mmap() of all of physical memory. This 244 will prevent Xorg on PowerPC with some ATI graphics cards from 245 initializing properly unless x11-servers/xorg-server is updated to 246 1.12.4_8 or newer. 247 24820140831: 249 The libatf-c and libatf-c++ major versions were downgraded to 0 and 250 1 respectively to match the upstream numbers. They were out of 251 sync because, when they were originally added to FreeBSD, the 252 upstream versions were not respected. These libraries are private 253 and not yet built by default, so renumbering them should be a 254 non-issue. However, unclean source trees will yield broken test 255 programs once the operator executes "make delete-old-libs" after a 256 "make installworld". 257 258 Additionally, the atf-sh binary was made private by moving it into 259 /usr/libexec/. Already-built shell test programs will keep the 260 path to the old binary so they will break after "make delete-old" 261 is run. 262 263 If you are using WITH_TESTS=yes (not the default), wipe the object 264 tree and rebuild from scratch to prevent spurious test failures. 265 This is only needed once: the misnumbered libraries and misplaced 266 binaries have been added to OptionalObsoleteFiles.inc so they will 267 be removed during a clean upgrade. 268 26920140814: 270 The ixgbe tunables now match their sysctl counterparts, for example: 271 hw.ixgbe.enable_aim => hw.ix.enable_aim 272 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 273 27420140801: 275 The NFSv4.1 server committed by r269398 changes the internal 276 function call interfaces used between the NFS and krpc modules. 277 As such, __FreeBSD_version was bumped. 278 27920140729: 280 The default unbound configuration has been modified to address 281 issues with reverse lookups on networks that use private 282 address ranges. If you use the local_unbound service, run 283 "service local_unbound setup" as root to regenerate your 284 configuration, then "service local_unbound reload" to load the 285 new configuration. 286 28720140717: 288 It is no longer necessary to include the dwarf version in your DEBUG 289 options in your kernel config file. The bug that required it to be 290 placed in the config file has bene fixed. DEBUG should now just 291 contain -g. The build system will automatically update things 292 to do the right thing. 293 29420140715: 295 Several ABI breaking changes were merged to CTL and new iSCSI code. 296 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 297 iscsictl need to be rebuilt to work with a new kernel. 298 29920140708: 300 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 301 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 302 which differs from the behaviour controlled by this knob.) 303 30420140608: 305 On i386 and amd64 systems, the onifconsole flag is now set by default 306 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 307 as a login TTY if it is set in the bootloader as an active kernel 308 console. No changes in behavior should result otherwise. To revert to 309 the previous behavior, set ttyu0 to "off" in /etc/ttys. 310 31120140512: 312 Clang and llvm have been upgraded to 3.4.1 release. 313 31420140321: 315 Clang and llvm have been upgraded to 3.4 release. 316 31720140306: 318 If a Makefile in a tests/ directory was auto-generating a Kyuafile 319 instead of providing an explicit one, this would prevent such 320 Makefile from providing its own Kyuafile in the future during 321 NO_CLEAN builds. This has been fixed in the Makefiles but manual 322 intervention is needed to clean an objdir if you use NO_CLEAN: 323 # find /usr/obj -name Kyuafile | xargs rm -f 324 32520140303: 326 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 327 capability mode support. Please note that enabling the feature in 328 kernel is still highly recommended. 329 33020140227: 331 OpenSSH is now built with sandbox support, and will use sandbox as 332 the default privilege separation method. This requires Capsicum 333 capability mode support in kernel. 334 33520140216: 336 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 337 been deprecated and will not be part of FreeBSD 11.0 and later 338 releases. If you use this driver, please consider switching to 339 the nfe(4) driver instead. 340 34120140120: 342 10.0-RELEASE. 343 34420131216: 345 The behavior of gss_pseudo_random() for the krb5 mechanism 346 has changed, for applications requesting a longer random string 347 than produced by the underlying enctype's pseudo-random() function. 348 In particular, the random string produced from a session key of 349 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 350 be different at the 17th octet and later, after this change. 351 The counter used in the PRF+ construction is now encoded as a 352 big-endian integer in accordance with RFC 4402. 353 __FreeBSD_version is bumped to 1000701. 354 35520131108: 356 The WITHOUT_ATF build knob has been removed and its functionality 357 has been subsumed into the more generic WITHOUT_TESTS. If you were 358 using the former to disable the build of the ATF libraries, you 359 should change your settings to use the latter. 360 36120131031: 362 The default version of mtree is nmtree which is obtained from 363 NetBSD. The output is generally the same, but may vary 364 slightly. If you found you need identical output adding 365 "-F freebsd9" to the command line should do the trick. For the 366 time being, the old mtree is available as fmtree. 367 36820131014: 369 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 370 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 371 1.1.4_8 and verify bsdyml not linked in, before running "make 372 delete-old-libs": 373 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 374 or 375 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 376 37720131010: 378 The rc.d/jail script has been updated to support jail(8) 379 configuration file. The "jail_<jname>_*" rc.conf(5) variables 380 for per-jail configuration are automatically converted to 381 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 382 This is transparently backward compatible. See below about some 383 incompatibilities and rc.conf(5) manual page for more details. 384 385 These variables are now deprecated in favor of jail(8) configuration 386 file. One can use "rc.d/jail config <jname>" command to generate 387 a jail(8) configuration file in /var/run/jail.<jname>.conf without 388 running the jail(8) utility. The default pathname of the 389 configuration file is /etc/jail.conf and can be specified by 390 using $jail_conf or $jail_<jname>_conf variables. 391 392 Please note that jail_devfs_ruleset accepts an integer at 393 this moment. Please consider to rewrite the ruleset name 394 with an integer. 395 39620130930: 397 BIND has been removed from the base system. If all you need 398 is a local resolver, simply enable and start the local_unbound 399 service instead. Otherwise, several versions of BIND are 400 available in the ports tree. The dns/bind99 port is one example. 401 402 With this change, nslookup(1) and dig(1) are no longer in the base 403 system. Users should instead use host(1) and drill(1) which are 404 in the base system. Alternatively, nslookup and dig can 405 be obtained by installing the dns/bind-tools port. 406 40720130916: 408 With the addition of unbound(8), a new unbound user is now 409 required during installworld. "mergemaster -p" can be used to 410 add the user prior to installworld, as documented in the handbook. 411 41220130911: 413 OpenSSH is now built with DNSSEC support, and will by default 414 silently trust signed SSHFP records. This can be controlled with 415 the VerifyHostKeyDNS client configuration setting. DNSSEC support 416 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 417 41820130906: 419 The GNU Compiler Collection and C++ standard library (libstdc++) 420 are no longer built by default on platforms where clang is the system 421 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 422 options in src.conf. 423 42420130905: 425 The PROCDESC kernel option is now part of the GENERIC kernel 426 configuration and is required for the rwhod(8) to work. 427 If you are using custom kernel configuration, you should include 428 'options PROCDESC'. 429 43020130905: 431 The API and ABI related to the Capsicum framework was modified 432 in backward incompatible way. The userland libraries and programs 433 have to be recompiled to work with the new kernel. This includes the 434 following libraries and programs, but the whole buildworld is 435 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 436 kdump, procstat, rwho, rwhod, uniq. 437 43820130903: 439 AES-NI intrinsic support has been added to gcc. The AES-NI module 440 has been updated to use this support. A new gcc is required to build 441 the aesni module on both i386 and amd64. 442 44320130821: 444 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 445 Thus "device padlock_rng" and "device rdrand_rng" should be 446 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 447 44820130813: 449 WITH_ICONV has been split into two feature sets. WITH_ICONV now 450 enables just the iconv* functionality and is now on by default. 451 WITH_LIBICONV_COMPAT enables the libiconv api and link time 452 compatability. Set WITHOUT_ICONV to build the old way. 453 If you have been using WITH_ICONV before, you will very likely 454 need to turn on WITH_LIBICONV_COMPAT. 455 45620130806: 457 INVARIANTS option now enables DEBUG for code with OpenSolaris and 458 Illumos origin, including ZFS. If you have INVARIANTS in your 459 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 460 explicitly. 461 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 462 locks if WITNESS option was set. Because that generated a lot of 463 witness(9) reports and all of them were believed to be false 464 positives, this is no longer done. New option OPENSOLARIS_WITNESS 465 can be used to achieve the previous behavior. 466 46720130806: 468 Timer values in IPv6 data structures now use time_uptime instead 469 of time_second. Although this is not a user-visible functional 470 change, userland utilities which directly use them---ndp(8), 471 rtadvd(8), and rtsold(8) in the base system---need to be updated 472 to r253970 or later. 473 47420130802: 475 find -delete can now delete the pathnames given as arguments, 476 instead of only files found below them or if the pathname did 477 not contain any slashes. Formerly, the following error message 478 would result: 479 480 find: -delete: <path>: relative path potentially not safe 481 482 Deleting the pathnames given as arguments can be prevented 483 without error messages using -mindepth 1 or by changing 484 directory and passing "." as argument to find. This works in the 485 old as well as the new version of find. 486 48720130726: 488 Behavior of devfs rules path matching has been changed. 489 Pattern is now always matched against fully qualified devfs 490 path and slash characters must be explicitly matched by 491 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 492 subdirectories must be reviewed. 493 49420130716: 495 The default ARM ABI has changed to the ARM EABI. The old ABI is 496 incompatible with the ARM EABI and all programs and modules will 497 need to be rebuilt to work with a new kernel. 498 499 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 500 501 NOTE: Support for the old ABI will be removed in the future and 502 users are advised to upgrade. 503 50420130709: 505 pkg_install has been disconnected from the build if you really need it 506 you should add WITH_PKGTOOLS in your src.conf(5). 507 50820130709: 509 Most of network statistics structures were changed to be able 510 keep 64-bits counters. Thus all tools, that work with networking 511 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 512 51320130629: 514 Fix targets that run multiple make's to use && rather than ; 515 so that subsequent steps depend on success of previous. 516 517 NOTE: if building 'universe' with -j* on stable/8 or stable/9 518 it would be better to start the build using bmake, to avoid 519 overloading the machine. 520 52120130618: 522 Fix a bug that allowed a tracing process (e.g. gdb) to write 523 to a memory-mapped file in the traced process's address space 524 even if neither the traced process nor the tracing process had 525 write access to that file. 526 52720130615: 528 CVS has been removed from the base system. An exact copy 529 of the code is available from the devel/cvs port. 530 53120130613: 532 Some people report the following error after the switch to bmake: 533 534 make: illegal option -- J 535 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 536 ... 537 *** [buildworld] Error code 2 538 539 this likely due to an old instance of make in 540 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 541 which src/Makefile will use that blindly, if it exists, so if 542 you see the above error: 543 544 rm -rf `make -V MAKEPATH` 545 546 should resolve it. 547 54820130516: 549 Use bmake by default. 550 Whereas before one could choose to build with bmake via 551 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 552 make. The goal is to remove these knobs for 10-RELEASE. 553 554 It is worth noting that bmake (like gmake) treats the command 555 line as the unit of failure, rather than statements within the 556 command line. Thus '(cd some/where && dosomething)' is safer 557 than 'cd some/where; dosomething'. The '()' allows consistent 558 behavior in parallel build. 559 56020130429: 561 Fix a bug that allows NFS clients to issue READDIR on files. 562 56320130426: 564 The WITHOUT_IDEA option has been removed because 565 the IDEA patent expired. 566 56720130426: 568 The sysctl which controls TRIM support under ZFS has been renamed 569 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 570 enabled by default. 571 57220130425: 573 The mergemaster command now uses the default MAKEOBJDIRPREFIX 574 rather than creating it's own in the temporary directory in 575 order allow access to bootstrapped versions of tools such as 576 install and mtree. When upgrading from version of FreeBSD where 577 the install command does not support -l, you will need to 578 install a new mergemaster command if mergemaster -p is required. 579 This can be accomplished with the command (cd src/usr.sbin/mergemaster 580 && make install). 581 58220130404: 583 Legacy ATA stack, disabled and replaced by new CAM-based one since 584 FreeBSD 9.0, completely removed from the sources. Kernel modules 585 atadisk and atapi*, user-level tools atacontrol and burncd are 586 removed. Kernel option `options ATA_CAM` is now permanently enabled 587 and removed. 588 58920130319: 590 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 591 and socketpair(2). Software, in particular Kerberos, may 592 automatically detect and use these during building. The resulting 593 binaries will not work on older kernels. 594 59520130308: 596 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 597 information, see the respective 20130304 entry). 598 59920130304: 600 Recent commits to callout(9) changed the size of struct callout, 601 so the KBI is probably heavily disturbed. Also, some functions 602 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 603 by macros. Every kernel module using it won't load, so rebuild 604 is requested. 605 606 The ctl device has been re-enabled in GENERIC for i386 and amd64, 607 but does not initialize by default (because of the new CTL_DISABLE 608 option) to save memory. To re-enable it, remove the CTL_DISABLE 609 option from the kernel config file or set kern.cam.ctl.disable=0 610 in /boot/loader.conf. 611 61220130301: 613 The ctl device has been disabled in GENERIC for i386 and amd64. 614 This was done due to the extra memory being allocated at system 615 initialisation time by the ctl driver which was only used if 616 a CAM target device was created. This makes a FreeBSD system 617 unusable on 128MB or less of RAM. 618 61920130208: 620 A new compression method (lz4) has been merged to -HEAD. Please 621 refer to zpool-features(7) for more information. 622 623 Please refer to the "ZFS notes" section of this file for information 624 on upgrading boot ZFS pools. 625 62620130129: 627 A BSD-licensed patch(1) variant has been added and is installed 628 as bsdpatch, being the GNU version the default patch. 629 To inverse the logic and use the BSD-licensed one as default, 630 while having the GNU version installed as gnupatch, rebuild 631 and install world with the WITH_BSD_PATCH knob set. 632 63320130121: 634 Due to the use of the new -l option to install(1) during build 635 and install, you must take care not to directly set the INSTALL 636 make variable in your /etc/make.conf, /etc/src.conf, or on the 637 command line. If you wish to use the -C flag for all installs 638 you may be able to add INSTALL+=-C to /etc/make.conf or 639 /etc/src.conf. 640 64120130118: 642 The install(1) option -M has changed meaning and now takes an 643 argument that is a file or path to append logs to. In the 644 unlikely event that -M was the last option on the command line 645 and the command line contained at least two files and a target 646 directory the first file will have logs appended to it. The -M 647 option served little practical purpose in the last decade so its 648 use is expected to be extremely rare. 649 65020121223: 651 After switching to Clang as the default compiler some users of ZFS 652 on i386 systems started to experience stack overflow kernel panics. 653 Please consider using 'options KSTACK_PAGES=4' in such configurations. 654 65520121222: 656 GEOM_LABEL now mangles label names read from file system metadata. 657 Mangling affect labels containing spaces, non-printable characters, 658 '%' or '"'. Device names in /etc/fstab and other places may need to 659 be updated. 660 66120121217: 662 By default, only the 10 most recent kernel dumps will be saved. To 663 restore the previous behaviour (no limit on the number of kernel dumps 664 stored in the dump directory) add the following line to /etc/rc.conf: 665 666 savecore_flags="" 667 66820121201: 669 With the addition of auditdistd(8), a new auditdistd user is now 670 required during installworld. "mergemaster -p" can be used to 671 add the user prior to installworld, as documented in the handbook. 672 67320121117: 674 The sin6_scope_id member variable in struct sockaddr_in6 is now 675 filled by the kernel before passing the structure to the userland via 676 sysctl or routing socket. This means the KAME-specific embedded scope 677 id in sin6_addr.s6_addr[2] is always cleared in userland application. 678 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 679 __FreeBSD_version is bumped to 1000025. 680 68120121105: 682 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 683 This means that the world and kernel will be compiled with clang 684 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 685 and /usr/bin/cpp. To disable this behavior and revert to building 686 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 687 of current may need to bootstrap WITHOUT_CLANG first if the clang 688 build fails (its compatibility window doesn't extend to the 9 stable 689 branch point). 690 69120121102: 692 The IPFIREWALL_FORWARD kernel option has been removed. Its 693 functionality now turned on by default. 694 69520121023: 696 The ZERO_COPY_SOCKET kernel option has been removed and 697 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 698 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 699 mechanism which is not safe and may result in kernel crashes. 700 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 701 driver supports disposeable external page sized mbuf storage. 702 Proper replacements for both zero-copy mechanisms are under 703 consideration and will eventually lead to complete removal 704 of the two kernel options. 705 70620121023: 707 The IPv4 network stack has been converted to network byte 708 order. The following modules need to be recompiled together 709 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 710 pf(4), ipfw(4), ng_ipfw(4), stf(4). 711 71220121022: 713 Support for non-MPSAFE filesystems was removed from VFS. The 714 VFS_VERSION was bumped, all filesystem modules shall be 715 recompiled. 716 71720121018: 718 All the non-MPSAFE filesystems have been disconnected from 719 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 720 portalfs, smbfs, xfs. 721 72220121016: 723 The interface cloning API and ABI has changed. The following 724 modules need to be recompiled together with kernel: 725 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 726 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 727 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 728 72920121015: 730 The sdhci driver was split in two parts: sdhci (generic SD Host 731 Controller logic) and sdhci_pci (actual hardware driver). 732 No kernel config modifications are required, but if you 733 load sdhc as a module you must switch to sdhci_pci instead. 734 73520121014: 736 Import the FUSE kernel and userland support into base system. 737 73820121013: 739 The GNU sort(1) program has been removed since the BSD-licensed 740 sort(1) has been the default for quite some time and no serious 741 problems have been reported. The corresponding WITH_GNU_SORT 742 knob has also gone. 743 74420121006: 745 The pfil(9) API/ABI for AF_INET family has been changed. Packet 746 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 747 with new kernel. 748 74920121001: 750 The net80211(4) ABI has been changed to allow for improved driver 751 PS-POLL and power-save support. All wireless drivers need to be 752 recompiled to work with the new kernel. 753 75420120913: 755 The random(4) support for the VIA hardware random number 756 generator (`PADLOCK') is no longer enabled unconditionally. 757 Add the padlock_rng device in the custom kernel config if 758 needed. The GENERIC kernels on i386 and amd64 do include the 759 device, so the change only affects the custom kernel 760 configurations. 761 76220120908: 763 The pf(4) packet filter ABI has been changed. pfctl(8) and 764 snmp_pf module need to be recompiled to work with new kernel. 765 76620120828: 767 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 768 to -HEAD. Pools that have empty_bpobj in active state can not be 769 imported read-write with ZFS implementations that do not support 770 this feature. For more information read the zpool-features(5) 771 manual page. 772 77320120727: 774 The sparc64 ZFS loader has been changed to no longer try to auto- 775 detect ZFS providers based on diskN aliases but now requires these 776 to be explicitly listed in the OFW boot-device environment variable. 777 77820120712: 779 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 780 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 781 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 782 78320120712: 784 The following sysctls and tunables have been renamed for consistency 785 with other variables: 786 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 787 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 788 78920120628: 790 The sort utility has been replaced with BSD sort. For now, GNU sort 791 is also available as "gnusort" or the default can be set back to 792 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 793 installed as "bsdsort". 794 79520120611: 796 A new version of ZFS (pool version 5000) has been merged to -HEAD. 797 Starting with this version the old system of ZFS pool versioning 798 is superseded by "feature flags". This concept enables forward 799 compatibility against certain future changes in functionality of ZFS 800 pools. The first read-only compatible "feature flag" for ZFS pools 801 is named "com.delphix:async_destroy". For more information 802 read the new zpool-features(5) manual page. 803 Please refer to the "ZFS notes" section of this file for information 804 on upgrading boot ZFS pools. 805 80620120417: 807 The malloc(3) implementation embedded in libc now uses sources imported 808 as contrib/jemalloc. The most disruptive API change is to 809 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 810 delete it prior to installworld, and optionally re-create it using the 811 new format after rebooting. See malloc.conf(5) for details 812 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 813 NAMESPACE section). 814 81520120328: 816 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 817 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 818 now spelled mips. This is to aid compatibility with third-party 819 software that expects this naming scheme in uname(3). Little-endian 820 settings are unchanged. If you are updating a big-endian mips64 machine 821 from before this change, you may need to set MACHINE_ARCH=mips64 in 822 your environment before the new build system will recognize your machine. 823 82420120306: 825 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 826 platforms. 827 82820120229: 829 Now unix domain sockets behave "as expected" on nullfs(5). Previously 830 nullfs(5) did not pass through all behaviours to the underlying layer, 831 as a result if we bound to a socket on the lower layer we could connect 832 only to the lower path; if we bound to the upper layer we could connect 833 only to the upper path. The new behavior is one can connect to both the 834 lower and the upper paths regardless what layer path one binds to. 835 83620120211: 837 The getifaddrs upgrade path broken with 20111215 has been restored. 838 If you have upgraded in between 20111215 and 20120209 you need to 839 recompile libc again with your kernel. You still need to recompile 840 world to be able to configure CARP but this restriction already 841 comes from 20111215. 842 84320120114: 844 The set_rcvar() function has been removed from /etc/rc.subr. All 845 base and ports rc.d scripts have been updated, so if you have a 846 port installed with a script in /usr/local/etc/rc.d you can either 847 hand-edit the rcvar= line, or reinstall the port. 848 849 An easy way to handle the mass-update of /etc/rc.d: 850 rm /etc/rc.d/* && mergemaster -i 851 85220120109: 853 panic(9) now stops other CPUs in the SMP systems, disables interrupts 854 on the current CPU and prevents other threads from running. 855 This behavior can be reverted using the kern.stop_scheduler_on_panic 856 tunable/sysctl. 857 The new behavior can be incompatible with kern.sync_on_panic. 858 85920111215: 860 The carp(4) facility has been changed significantly. Configuration 861 of the CARP protocol via ifconfig(8) has changed, as well as format 862 of CARP events submitted to devd(8) has changed. See manual pages 863 for more information. The arpbalance feature of carp(4) is currently 864 not supported anymore. 865 866 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 867 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 868 need to be recompiled. 869 87020111122: 871 The acpi_wmi(4) status device /dev/wmistat has been renamed to 872 /dev/wmistat0. 873 87420111108: 875 The option VFS_ALLOW_NONMPSAFE option has been added in order to 876 explicitely support non-MPSAFE filesystems. 877 It is on by default for all supported platform at this present 878 time. 879 88020111101: 881 The broken amd(4) driver has been replaced with esp(4) in the amd64, 882 i386 and pc98 GENERIC kernel configuration files. 883 88420110930: 885 sysinstall has been removed 886 88720110923: 888 The stable/9 branch created in subversion. This corresponds to the 889 RELENG_9 branch in CVS. 890 89120110913: 892 This commit modifies vfs_register() so that it uses a hash 893 calculation to set vfc_typenum, which is enabled by default. 894 The first time a system is booted after this change, the 895 vfc_typenum values will change for all file systems. The 896 main effect of this is a change to the NFS server file handles 897 for file systems that use vfc_typenum in their fsid, such as ZFS. 898 It will, however, prevent vfc_typenum from changing when file 899 systems are loaded in a different order for subsequent reboots. 900 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 901 until you are ready to remount all NFS clients after a reboot. 902 90320110828: 904 Bump the shared library version numbers for libraries that 905 do not use symbol versioning, have changed the ABI compared 906 to stable/8 and which shared library version was not bumped. 907 Done as part of 9.0-RELEASE cycle. 908 90920110815: 910 During the merge of Capsicum features, the fget(9) KPI was modified. 911 This may require the rebuilding of out-of-tree device drivers -- 912 issues have been reported specifically with the nVidia device driver. 913 __FreeBSD_version is bumped to 900041. 914 915 Also, there is a period between 20110811 and 20110814 where the 916 special devices /dev/{stdin,stdout,stderr} did not work correctly. 917 Building world from a kernel during that window may not work. 918 91920110628: 920 The packet filter (pf) code has been updated to OpenBSD 4.5. 921 You need to update userland tools to be in sync with kernel. 922 This update breaks backward compatibility with earlier pfsync(4) 923 versions. Care must be taken when updating redundant firewall setups. 924 92520110608: 926 The following sysctls and tunables are retired on x86 platforms: 927 machdep.hlt_cpus 928 machdep.hlt_logical_cpus 929 The following sysctl is retired: 930 machdep.hyperthreading_allowed 931 The sysctls were supposed to provide a way to dynamically offline and 932 online selected CPUs on x86 platforms, but the implementation has not 933 been reliable especially with SCHED_ULE scheduler. 934 machdep.hyperthreading_allowed tunable is still available to ignore 935 hyperthreading CPUs at OS level. 936 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 937 where X is an APIC ID of a CPU. Be advised, though, that disabling 938 CPUs in non-uniform fashion will result in non-uniform topology and 939 may lead to sub-optimal system performance with SCHED_ULE, which is 940 a default scheduler. 941 94220110607: 943 cpumask_t type is retired and cpuset_t is used in order to describe 944 a mask of CPUs. 945 94620110531: 947 Changes to ifconfig(8) for dynamic address family detection mandate 948 that you are running a kernel of 20110525 or later. Make sure to 949 follow the update procedure to boot a new kernel before installing 950 world. 951 95220110513: 953 Support for sun4v architecture is officially dropped 954 95520110503: 956 Several KPI breaking changes have been committed to the mii(4) layer, 957 the PHY drivers and consequently some Ethernet drivers using mii(4). 958 This means that miibus.ko and the modules of the affected Ethernet 959 drivers need to be recompiled. 960 961 Note to kernel developers: Given that the OUI bit reversion problem 962 was fixed as part of these changes all mii(4) commits related to OUIs, 963 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 964 handling, no longer can be merged verbatim to stable/8 and previous 965 branches. 966 96720110430: 968 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 969 into their kernel configurations along with 'device pci'. 970 97120110427: 972 The default NFS client is now the new NFS client, so fstype "newnfs" 973 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 974 Although mounts via fstype "nfs" will usually work without userland 975 changes, it is recommended that the mount(8) and mount_nfs(8) 976 commands be rebuilt from sources and that a link to mount_nfs called 977 mount_oldnfs be created. The new client is compiled into the 978 kernel with "options NFSCL" and this is needed for diskless root 979 file systems. The GENERIC kernel configs have been changed to use 980 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 981 To use the regular/old client, you can "mount -t oldnfs ...". For 982 a diskless root file system, you must also include a line like: 983 984 vfs.root.mountfrom="oldnfs:" 985 986 in the boot/loader.conf on the root fs on the NFS server to make 987 a diskless root fs use the old client. 988 98920110424: 990 The GENERIC kernels for all architectures now default to the new 991 CAM-based ATA stack. It means that all legacy ATA drivers were 992 removed and replaced by respective CAM drivers. If you are using 993 ATA device names in /etc/fstab or other places, make sure to update 994 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 995 where 'Y's are the sequential numbers starting from zero for each type 996 in order of detection, unless configured otherwise with tunables, 997 see cam(4)). There will be symbolic links created in /dev/ to map 998 old adX devices to the respective adaY. They should provide basic 999 compatibility for file systems mounting in most cases, but they do 1000 not support old user-level APIs and do not have respective providers 1001 in GEOM. Consider using updated management tools with new device names. 1002 1003 It is possible to load devices ahci, ata, siis and mvs as modules, 1004 but option ATA_CAM should remain in kernel configuration to make ata 1005 module work as CAM driver supporting legacy ATA controllers. Device ata 1006 still can be used in modular fashion (atacore + ...). Modules atadisk 1007 and atapi* are not used and won't affect operation in ATA_CAM mode. 1008 Note that to use CAM-based ATA kernel should include CAM devices 1009 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1010 them are parts of the cam module. 1011 1012 ataraid(4) functionality is now supported by the RAID GEOM class. 1013 To use it you can load geom_raid kernel module and use graid(8) tool 1014 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1015 1016 No kernel config options or code have been removed, so if a problem 1017 arises, please report it and optionally revert to the old ATA stack. 1018 In order to do it you can remove from the kernel config: 1019 options ATA_CAM 1020 device ahci 1021 device mvs 1022 device siis 1023 , and instead add back: 1024 device atadisk # ATA disk drives 1025 device ataraid # ATA RAID drives 1026 device atapicd # ATAPI CDROM drives 1027 device atapifd # ATAPI floppy drives 1028 device atapist # ATAPI tape drives 1029 103020110423: 1031 The default NFS server has been changed to the new server, which 1032 was referred to as the experimental server. If you need to switch 1033 back to the old NFS server, you must now put the "-o" option on 1034 both the mountd and nfsd commands. This can be done using the 1035 mountd_flags and nfs_server_flags rc.conf variables until an 1036 update to the rc scripts is committed, which is coming soon. 1037 103820110418: 1039 The GNU Objective-C runtime library (libobjc), and other Objective-C 1040 related components have been removed from the base system. If you 1041 require an Objective-C library, please use one of the available ports. 1042 104320110331: 1044 ath(4) has been split into bus- and device- modules. if_ath contains 1045 the HAL, the TX rate control and the network device code. if_ath_pci 1046 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1047 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1048 in order to use ath on everything else. 1049 1050 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1051 need to load if_ath and if_ath_pci for ath(4) operation. 1052 105320110314: 1054 As part of the replacement of sysinstall, the process of building 1055 release media has changed significantly. For details, please re-read 1056 release(7), which has been updated to reflect the new build process. 1057 105820110218: 1059 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1060 is the last available version under GPLv2. It brings a number of new 1061 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1062 4.1 and SSE 4.2), better support for powerpc64, a number of new 1063 directives, and lots of other small improvements. See the ChangeLog 1064 file in contrib/binutils for the full details. 1065 106620110218: 1067 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1068 compliant, and will now use half of hash for authentication. 1069 This will break interoperability with all stacks (including all 1070 actual FreeBSD versions) who implement 1071 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1072 authentication). 1073 The only workaround with such peers is to use another HMAC 1074 algorithm for IPsec ("phase 2") authentication. 1075 107620110207: 1077 Remove the uio_yield prototype and symbol. This function has 1078 been misnamed since it was introduced and should not be 1079 globally exposed with this name. The equivalent functionality 1080 is now available using kern_yield(curthread->td_user_pri). 1081 The function remains undocumented. 1082 108320110112: 1084 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1085 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1086 for scalar sysctls is defined but disabled. Code that needs 1087 UQUAD to pass the type checking that must compile on older 1088 systems where the define is not present can check against 1089 __FreeBSD_version >= 900030. 1090 1091 The system dialog(1) has been replaced with a new version previously 1092 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1093 with the previous version, but the libdialog associated with it has 1094 a largely incompatible API. As such, the original version of libdialog 1095 will be kept temporarily as libodialog, until its base system consumers 1096 are replaced or updated. Bump __FreeBSD_version to 900030. 1097 109820110103: 1099 If you are trying to run make universe on a -stable system, and you get 1100 the following warning: 1101 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1102 unknown. config(8) likely too old." 1103 or something similar to it, then you must upgrade your -stable system 1104 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1105 stable/8) or build the config from the latest stable/8 branch and 1106 install it on your system. 1107 1108 Prior to this date, building a current universe on 8-stable system from 1109 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1110 error in the first kernel build phase. A new config on those old 1111 systems will fix that problem for older versions of -current. 1112 111320101228: 1114 The TCP stack has been modified to allow Khelp modules to interact with 1115 it via helper hook points and store per-connection data in the TCP 1116 control block. Bump __FreeBSD_version to 900029. User space tools that 1117 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1118 be recompiled. 1119 112020101114: 1121 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1122 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1123 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1124 to take advantage of it instead of using custom implementations. This 1125 means that these drivers now no longer unconditionally advertise 1126 support for flow control but only do so if flow control is a selected 1127 media option. This was implemented in the generic support that way in 1128 order to allow flow control to be switched on and off via ifconfig(8) 1129 with the PHY specific default to typically off in order to protect 1130 from unwanted effects. Consequently, if you used flow control with 1131 one of the above mentioned drivers you now need to explicitly enable 1132 it, for example via: 1133 ifconfig bge0 media auto mediaopt flowcontrol 1134 1135 Along with the above mentioned changes generic support for setting 1136 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1137 e1000phy(4) as well as ip1000phy(4) have been converted to take 1138 advantage of it. This means that these drivers now no longer take the 1139 link0 parameter for selecting master mode but the master media option 1140 has to be used instead, for example like in the following: 1141 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1142 1143 Selection of master mode now is also available with all other PHY 1144 drivers supporting 1000baseT. 1145 114620101111: 1147 The TCP stack has received a significant update to add support for 1148 modularised congestion control and generally improve the clarity of 1149 congestion control decisions. Bump __FreeBSD_version to 900025. User 1150 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1151 sockstat) need to be recompiled. 1152 115320101002: 1154 The man(1) utility has been replaced by a new version that no longer 1155 uses /etc/manpath.config. Please consult man.conf(5) for how to 1156 migrate local entries to the new format. 1157 115820100928: 1159 The copyright strings printed by login(1) and sshd(8) at the time of a 1160 new connection have been removed to follow other operating systems and 1161 upstream sshd. 1162 116320100915: 1164 A workaround for a fixed ld bug has been removed in kernel code, 1165 so make sure that your system ld is built from sources after 1166 revision 210245 from 2010-07-19 (r211583 if building head kernel 1167 on stable/8, r211584 for stable/7; both from 2010-08-21). 1168 A symptom of incorrect ld version is different addresses for 1169 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1170 117120100913: 1172 The $ipv6_prefer variable in rc.conf(5) has been split into 1173 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1174 1175 The $ip6addrctl_policy is a variable to choose a pre-defined 1176 address selection policy set by ip6addrctl(8). A value 1177 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1178 default is "AUTO". 1179 1180 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1181 flag (see an entry of 20090926) is set on an interface with no 1182 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1183 security reason. If you want IPv6 link-local address on all 1184 interfaces by default, set this to "YES". 1185 1186 The old ipv6_prefer="YES" is equivalent to 1187 ipv6_activate_all_interfaces="YES" and 1188 ip6addrctl_policy="ipv6_prefer". 1189 119020100913: 1191 DTrace has grown support for userland tracing. Due to this, DTrace is 1192 now i386 and amd64 only. 1193 dtruss(1) is now installed by default on those systems and a new 1194 kernel module is needed for userland tracing: fasttrap. 1195 No changes to your kernel config file are necessary to enable 1196 userland tracing, but you might consider adding 'STRIP=' and 1197 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1198 to have informative userland stack traces in DTrace (ustack). 1199 120020100725: 1201 The acpi_aiboost(4) driver has been removed in favor of the new 1202 aibs(4) driver. You should update your kernel configuration file. 1203 120420100722: 1205 BSD grep has been imported to the base system and it is built by 1206 default. It is completely BSD licensed, highly GNU-compatible, uses 1207 less memory than its GNU counterpart and has a small codebase. 1208 However, it is slower than its GNU counterpart, which is mostly 1209 noticeable for larger searches, for smaller ones it is measurable 1210 but not significant. The reason is complex, the most important factor 1211 is that we lack a modern and efficient regex library and GNU 1212 overcomes this by optimizing the searches internally. Future work 1213 on improving the regex performance is planned, for the meantime, 1214 users that need better performance, can build GNU grep instead by 1215 setting the WITH_GNU_GREP knob. 1216 121720100713: 1218 Due to the import of powerpc64 support, all existing powerpc kernel 1219 configuration files must be updated with a machine directive like this: 1220 machine powerpc powerpc 1221 1222 In addition, an updated config(8) is required to build powerpc kernels 1223 after this change. 1224 122520100713: 1226 A new version of ZFS (version 15) has been merged to -HEAD. 1227 This version uses a python library for the following subcommands: 1228 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1229 For full functionality of these commands the following port must 1230 be installed: sysutils/py-zfs 1231 123220100429: 1233 'vm_page's are now hashed by physical address to an array of mutexes. 1234 Currently this is only used to serialize access to hold_count. Over 1235 time the page queue mutex will be peeled away. This changes the size 1236 of pmap on every architecture. And requires all callers of vm_page_hold 1237 and vm_page_unhold to be updated. 1238 123920100402: 1240 WITH_CTF can now be specified in src.conf (not recommended, there 1241 are some problems with static executables), make.conf (would also 1242 affect ports which do not use GNU make and do not override the 1243 compile targets) or in the kernel config (via "makeoptions 1244 WITH_CTF=yes"). 1245 When WITH_CTF was specified there before this was silently ignored, 1246 so make sure that WITH_CTF is not used in places which could lead 1247 to unwanted behavior. 1248 124920100311: 1250 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1251 to allow 32-bit compatibility on non-x86 platforms. All kernel 1252 configurations on amd64 and ia64 platforms using these options must 1253 be modified accordingly. 1254 125520100113: 1256 The utmp user accounting database has been replaced with utmpx, 1257 the user accounting interface standardized by POSIX. 1258 Unfortunately the semantics of utmp and utmpx don't match, 1259 making it practically impossible to support both interfaces. 1260 The user accounting database is used by tools like finger(1), 1261 last(1), talk(1), w(1) and ac(8). 1262 1263 All applications in the base system use utmpx. This means only 1264 local binaries (e.g. from the ports tree) may still use these 1265 utmp database files. These applications must be rebuilt to make 1266 use of utmpx. 1267 1268 After the system has been upgraded, it is safe to remove the old 1269 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1270 assuming their contents is of no importance anymore. Old wtmp 1271 databases can only be used by last(1) and ac(8) after they have 1272 been converted to the new format using wtmpcvt(1). 1273 127420100108: 1275 Introduce the kernel thread "deadlock resolver" (which can be enabled 1276 via the DEADLKRES option, see NOTES for more details) and the 1277 sleepq_type() function for sleepqueues. 1278 127920091202: 1280 The rc.firewall and rc.firewall6 were unified, and 1281 rc.firewall6 and rc.d/ip6fw were removed. 1282 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1283 variables are obsoleted. Instead, the following new rc 1284 variables are added to rc.d/ipfw: 1285 1286 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1287 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1288 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1289 1290 The meanings correspond to the relevant IPv4 variables. 1291 129220091125: 1293 8.0-RELEASE. 1294 129520091113: 1296 The default terminal emulation for syscons(4) has been changed 1297 from cons25 to xterm on all platforms except pc98. This means 1298 that the /etc/ttys file needs to be updated to ensure correct 1299 operation of applications on the console. 1300 1301 The terminal emulation style can be toggled per window by using 1302 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1303 options can be used to change the compile-time default back to 1304 cons25. 1305 1306 To prevent graphical artifacts, make sure the TERM environment 1307 variable is set to match the terminal emulation that is being 1308 performed by syscons(4). 1309 131020091109: 1311 The layout of the structure ieee80211req_scan_result has changed. 1312 Applications that require wireless scan results (e.g. ifconfig(8)) 1313 from net80211 need to be recompiled. 1314 1315 Applications such as wpa_supplicant(8) may require a full world 1316 build without using NO_CLEAN in order to get synchronized with the 1317 new structure. 1318 131920091025: 1320 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1321 There's one kernel module for each firmware. Adding "device iwnfw" 1322 to the kernel configuration file means including all three firmware 1323 images inside the kernel. If you want to include just the one for 1324 your wireless card, use the devices iwn4965fw, iwn5000fw or 1325 iwn5150fw. 1326 132720090926: 1328 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1329 into rc.d/netif. The changes are the following: 1330 1331 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1332 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1333 Note that both variables need the "inet6" keyword at the head. 1334 1335 Do not set $ipv6_network_interfaces manually if you do not 1336 understand what you are doing. It is not needed in most cases. 1337 1338 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1339 they are obsolete. 1340 1341 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1342 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1343 1344 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1345 all configured interfaces have "inet6 accept_rtadv" in the 1346 $ifconfig_IF_ipv6. These are for backward compatibility. 1347 1348 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1349 functionality of interfaces with no corresponding 1350 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1351 and the default address selection policy of ip6addrctl(8) 1352 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1353 Note that if you want to configure IPv6 functionality on the 1354 disabled interfaces after boot, first you need to clear the flag by 1355 using ifconfig(8) like: 1356 1357 ifconfig em0 inet6 -ifdisabled 1358 1359 If YES, the default address selection policy is set as 1360 IPv6-preferred. 1361 1362 The default value of $ipv6_prefer is NO. 1363 1364 4. If your system need to receive Router Advertisement messages, 1365 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1366 scripts automatically invoke rtsol(8) when the interface becomes 1367 UP. The Router Advertisement messages are used for SLAAC 1368 (State-Less Address AutoConfiguration). 1369 137020090922: 1371 802.11s D3.03 support was committed. This is incompatible with the 1372 previous code, which was based on D3.0. 1373 137420090912: 1375 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1376 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1377 control whether accepting Router Advertisement messages or not. 1378 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1379 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1380 The ifconfig(8) utility now supports these flags. 1381 138220090910: 1383 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1384 mount(8) and -a option for df(1) to see them. 1385 138620090825: 1387 The old tunable hw.bus.devctl_disable has been superseded by 1388 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1389 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1390 is 1000. 1391 139220090813: 1393 Remove the option STOP_NMI. The default action is now to use NMI only 1394 for KDB via the newly introduced function stop_cpus_hard() and 1395 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1396 139720090803: 1398 The stable/8 branch created in subversion. This corresponds to the 1399 RELENG_8 branch in CVS. 1400 140120090719: 1402 Bump the shared library version numbers for all libraries that do not 1403 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1404 __FreeBSD_version to 800105. 1405 140620090714: 1407 Due to changes in the implementation of virtual network stack support, 1408 all network-related kernel modules must be recompiled. As this change 1409 breaks the ABI, bump __FreeBSD_version to 800104. 1410 141120090713: 1412 The TOE interface to the TCP syncache has been modified to remove 1413 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1414 The cxgb driver is the only TOE consumer affected by this change, and 1415 needs to be recompiled along with the kernel. As this change breaks 1416 the ABI, bump __FreeBSD_version to 800103. 1417 141820090712: 1419 Padding has been added to struct tcpcb, sackhint and tcpstat in 1420 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1421 maintaining the ABI. However, this change breaks the ABI, so bump 1422 __FreeBSD_version to 800102. User space tools that rely on the size of 1423 any of these structs (e.g. sockstat) need to be recompiled. 1424 142520090630: 1426 The NFS_LEGACYRPC option has been removed along with the old kernel 1427 RPC implementation that this option selected. Kernel configurations 1428 may need to be adjusted. 1429 143020090629: 1431 The network interface device nodes at /dev/net/<interface> have been 1432 removed. All ioctl operations can be performed the normal way using 1433 routing sockets. The kqueue functionality can generally be replaced 1434 with routing sockets. 1435 143620090628: 1437 The documentation from the FreeBSD Documentation Project (Handbook, 1438 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1439 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1440 144120090624: 1442 The ABI of various structures related to the SYSV IPC API have been 1443 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1444 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1445 800100. 1446 144720090622: 1448 Layout of struct vnet has changed as routing related variables were 1449 moved to their own Vimage module. Modules need to be recompiled. Bump 1450 __FreeBSD_version to 800099. 1451 145220090619: 1453 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1454 respectively. As long as no more than 16 groups per process are used, 1455 no changes should be visible. When more than 16 groups are used, old 1456 binaries may fail if they call getgroups() or getgrouplist() with 1457 statically sized storage. Recompiling will work around this, but 1458 applications should be modified to use dynamically allocated storage 1459 for group arrays as POSIX.1-2008 does not cap an implementation's 1460 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1461 1462 NFS and portalfs mounts may also be affected as the list of groups is 1463 truncated to 16. Users of NFS who use more than 16 groups, should 1464 take care that negative group permissions are not used on the exported 1465 file systems as they will not be reliable unless a GSSAPI based 1466 authentication method is used. 1467 146820090616: 1469 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1470 option compiles in the support for adaptive spinning for lockmgrs 1471 which want to enable it. The lockinit() function now accepts the flag 1472 LK_ADAPTIVE in order to make the lock object subject to adaptive 1473 spinning when both held in write and read mode. 1474 147520090613: 1476 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1477 changed. User applications that use this ioctl need to be rebuilt. 1478 147920090611: 1480 The layout of struct thread has changed. Kernel and modules need to 1481 be rebuilt. 1482 148320090608: 1484 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1485 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1486 148720090602: 1488 window(1) has been removed from the base system. It can now be 1489 installed from ports. The port is called misc/window. 1490 149120090601: 1492 The way we are storing and accessing `routing table' entries has 1493 changed. Programs reading the FIB, like netstat, need to be 1494 re-compiled. 1495 149620090601: 1497 A new netisr implementation has been added for FreeBSD 8. Network 1498 file system modules, such as igmp, ipdivert, and others, should be 1499 rebuilt. 1500 Bump __FreeBSD_version to 800096. 1501 150220090530: 1503 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1504 more valid. 1505 150620090530: 1507 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1508 Bump __FreeBSD_version to 800094. 1509 151020090529: 1511 Add mnt_xflag field to 'struct mount'. File system modules need to be 1512 rebuilt. 1513 Bump __FreeBSD_version to 800093. 1514 151520090528: 1516 The compiling option ADAPTIVE_SX has been retired while it has been 1517 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1518 The KPI for sx_init_flags() changes as accepting flags: 1519 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1520 been introduced in order to handle the reversed logic. 1521 Bump __FreeBSD_version to 800092. 1522 152320090527: 1524 Add support for hierarchical jails. Remove global securelevel. 1525 Bump __FreeBSD_version to 800091. 1526 152720090523: 1528 The layout of struct vnet_net has changed, therefore modules 1529 need to be rebuilt. 1530 Bump __FreeBSD_version to 800090. 1531 153220090523: 1533 The newly imported zic(8) produces a new format in the output. Please 1534 run tzsetup(8) to install the newly created data to /etc/localtime. 1535 153620090520: 1537 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1538 hw.usb.* and is now consistent again with previous releases. 1539 154020090520: 1541 802.11 monitor mode support was revised and driver api's were changed. 1542 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1543 of DLT_IEEE802_11. No user-visible data structures were changed but 1544 applications that use DLT_IEEE802_11 may require changes. 1545 Bump __FreeBSD_version to 800088. 1546 154720090430: 1548 The layout of the following structs has changed: sysctl_oid, 1549 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1550 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1551 panics may be experienced. World rebuild is required for 1552 correctly checking networking state from userland. 1553 Bump __FreeBSD_version to 800085. 1554 155520090429: 1556 MLDv2 and Source-Specific Multicast (SSM) have been merged 1557 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1558 The implementation of SSM within FreeBSD's IPv6 stack closely 1559 follows the IPv4 implementation. 1560 1561 For kernel developers: 1562 1563 * The most important changes are that the ip6_output() and 1564 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1565 and this lock has been downgraded to a non-recursive mutex. 1566 1567 * As with the changes to the IPv4 stack to support SSM, filtering 1568 of inbound multicast traffic must now be performed by transport 1569 protocols within the IPv6 stack. This does not apply to TCP and 1570 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1571 1572 * The KPIs used by IPv6 multicast are similar to those used by 1573 the IPv4 stack, with the following differences: 1574 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1575 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1576 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1577 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1578 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1579 for MLDv1 have an additional 'timer' argument which is used to 1580 jitter the initial membership report for the solicited-node 1581 multicast membership on-link. 1582 * This is not strictly needed for MLDv2, which already jitters 1583 its report transmissions. However, the 'timer' argument is 1584 preserved in case MLDv1 is active on the interface. 1585 1586 * The KAME linked-list based IPv6 membership implementation has 1587 been refactored to use a vector similar to that used by the IPv4 1588 stack. 1589 Code which maintains a list of its own multicast memberships 1590 internally, e.g. carp, has been updated to reflect the new 1591 semantics. 1592 1593 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1594 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1595 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1596 implementation constraint which needs to be addressed in HEAD. 1597 1598 For application developers: 1599 1600 * The changes are broadly similar to those made for the IPv4 1601 stack. 1602 1603 * The use of IPv4 and IPv6 multicast socket options on the same 1604 socket, using mapped addresses, HAS NOT been tested or supported. 1605 1606 * There are a number of issues with the implementation of various 1607 IPv6 multicast APIs which need to be resolved in the API surface 1608 before the implementation is fully compatible with KAME userland 1609 use, and these are mostly to do with interface index treatment. 1610 1611 * The literature available discusses the use of either the delta / ASM 1612 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1613 using setsourcefilter(3)/getsourcefilter(3). For more information 1614 please refer to RFC 3768, 'Socket Interface Extensions for 1615 Multicast Source Filters'. 1616 1617 * Applications which use the published RFC 3678 APIs should be fine. 1618 1619 For systems administrators: 1620 1621 * The mtest(8) utility has been refactored to support IPv6, in 1622 addition to IPv4. Interface addresses are no longer accepted 1623 as arguments, their names must be used instead. The utility 1624 will map the interface name to its first IPv4 address as 1625 returned by getifaddrs(3). 1626 1627 * The ifmcstat(8) utility has also been updated to print the MLDv2 1628 endpoint state and source filter lists via sysctl(3). 1629 1630 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1631 loopback of IPv6 multicast datagrams by default; it defaults to 1 1632 to preserve the existing behaviour. Disabling multicast loopback is 1633 recommended for optimal system performance. 1634 1635 * The IPv6 MROUTING code has been changed to examine this sysctl 1636 instead of attempting to perform a group lookup before looping 1637 back forwarded datagrams. 1638 1639 Bump __FreeBSD_version to 800084. 1640 164120090422: 1642 Implement low-level Bluetooth HCI API. 1643 Bump __FreeBSD_version to 800083. 1644 164520090419: 1646 The layout of struct malloc_type, used by modules to register new 1647 memory allocation types, has changed. Most modules will need to 1648 be rebuilt or panics may be experienced. 1649 Bump __FreeBSD_version to 800081. 1650 165120090415: 1652 Anticipate overflowing inp_flags - add inp_flags2. 1653 This changes most offsets in inpcb, so checking v4 connection 1654 state will require a world rebuild. 1655 Bump __FreeBSD_version to 800080. 1656 165720090415: 1658 Add an llentry to struct route and struct route_in6. Modules 1659 embedding a struct route will need to be recompiled. 1660 Bump __FreeBSD_version to 800079. 1661 166220090414: 1663 The size of rt_metrics_lite and by extension rtentry has changed. 1664 Networking administration apps will need to be recompiled. 1665 The route command now supports show as an alias for get, weighting 1666 of routes, sticky and nostick flags to alter the behavior of stateful 1667 load balancing. 1668 Bump __FreeBSD_version to 800078. 1669 167020090408: 1671 Do not use Giant for kbdmux(4) locking. This is wrong and 1672 apparently causing more problems than it solves. This will 1673 re-open the issue where interrupt handlers may race with 1674 kbdmux(4) in polling mode. Typical symptoms include (but 1675 not limited to) duplicated and/or missing characters when 1676 low level console functions (such as gets) are used while 1677 interrupts are enabled (for example geli password prompt, 1678 mountroot prompt etc.). Disabling kbdmux(4) may help. 1679 168020090407: 1681 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1682 kernel modules referencing any of the above need to be recompiled. 1683 Bump __FreeBSD_version to 800075. 1684 168520090320: 1686 GEOM_PART has become the default partition slicer for storage devices, 1687 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1688 introduces some changes: 1689 1690 MSDOS/EBR: the devices created from MSDOS extended partition entries 1691 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1692 to devices with offset-based names. fstabs may need to be modified. 1693 1694 BSD: the "geometry does not match label" warning is harmless in most 1695 cases but it points to problems in file system misalignment with 1696 disk geometry. The "c" partition is now implicit, covers the whole 1697 top-level drive and cannot be (mis)used by users. 1698 1699 General: Kernel dumps are now not allowed to be written to devices 1700 whose partition types indicate they are meant to be used for file 1701 systems (or, in case of MSDOS partitions, as something else than 1702 the "386BSD" type). 1703 1704 Most of these changes date approximately from 200812. 1705 170620090319: 1707 The uscanner(4) driver has been removed from the kernel. This follows 1708 Linux removing theirs in 2.6 and making libusb the default interface 1709 (supported by sane). 1710 171120090319: 1712 The multicast forwarding code has been cleaned up. netstat(1) 1713 only relies on KVM now for printing bandwidth upcall meters. 1714 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1715 ip6_mroute_mod respectively. The config(5) options for statically 1716 compiling this code remain the same, i.e. 'options MROUTING'. 1717 171820090315: 1719 Support for the IFF_NEEDSGIANT network interface flag has been 1720 removed, which means that non-MPSAFE network device drivers are no 1721 longer supported. In particular, if_ar, if_sr, and network device 1722 drivers from the old (legacy) USB stack can no longer be built or 1723 used. 1724 172520090313: 1726 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1727 a bunch of new language catalog files have also been added. 1728 This means that some common libc messages are now localized and 1729 they depend on the LC_MESSAGES environmental variable. 1730 173120090313: 1732 The k8temp(4) driver has been renamed to amdtemp(4) since 1733 support for Family 10 and Family 11 CPU families was added. 1734 173520090309: 1736 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1737 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1738 1739 For kernel developers, the most important changes are that the 1740 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1741 and this lock has been downgraded to a non-recursive mutex. 1742 1743 Transport protocols (UDP, Raw IP) are now responsible for filtering 1744 inbound multicast traffic according to group membership and source 1745 filters. The imo_multicast_filter() KPI exists for this purpose. 1746 Transports which do not use multicast (SCTP, TCP) already reject 1747 multicast by default. Forwarding and receive performance may improve 1748 as a mutex acquisition is no longer needed in the ip_input() 1749 low-level input path. in_addmulti() and in_delmulti() are shimmed 1750 to new KPIs which exist to support SSM in-kernel. 1751 1752 For application developers, it is recommended that loopback of 1753 multicast datagrams be disabled for best performance, as this 1754 will still cause the lock to be taken for each looped-back 1755 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1756 be tuned to 0 to disable loopback by default; it defaults to 1 1757 to preserve the existing behaviour. 1758 1759 For systems administrators, to obtain best performance with 1760 multicast reception and multiple groups, it is always recommended 1761 that a card with a suitably precise hash filter is used. Hash 1762 collisions will still result in the lock being taken within the 1763 transport protocol input path to check group membership. 1764 1765 If deploying FreeBSD in an environment with IGMP snooping switches, 1766 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1767 enabled; this forces 224.0.0.0/24 group membership to be announced 1768 via IGMP. 1769 1770 The size of 'struct igmpstat' has changed; netstat needs to be 1771 recompiled to reflect this. 1772 Bump __FreeBSD_version to 800070. 1773 177420090309: 1775 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1776 updated to use it. This requires a buildworld/installworld in order to 1777 update the library and dependencies (usbconfig, etc). Its advisable to 1778 rebuild all ports which uses libusb. More specific directions are given 1779 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1780 libusb are no longer required and can be removed. 1781 178220090302: 1783 A workaround is committed to allow the creation of System V shared 1784 memory segment of size > 2 GB on the 64-bit architectures. 1785 Due to a limitation of the existing ABI, the shm_segsz member 1786 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1787 wrong for large segments. Note that limits must be explicitly 1788 raised to allow such segments to be created. 1789 179020090301: 1791 The layout of struct ifnet has changed, requiring a rebuild of all 1792 network device driver modules. 1793 179420090227: 1795 The /dev handling for the new USB stack has changed, a 1796 buildworld/installworld is required for libusb20. 1797 179820090223: 1799 The new USB2 stack has now been permanently moved in and all kernel and 1800 module names reverted to their previous values (eg, usb, ehci, ohci, 1801 ums, ...). The old usb stack can be compiled in by prefixing the name 1802 with the letter 'o', the old usb modules have been removed. 1803 Updating entry 20090216 for xorg and 20090215 for libmap may still 1804 apply. 1805 180620090217: 1807 The rc.conf(5) option if_up_delay has been renamed to 1808 defaultroute_delay to better reflect its purpose. If you have 1809 customized this setting in /etc/rc.conf you need to update it to 1810 use the new name. 1811 181220090216: 1813 xorg 7.4 wants to configure its input devices via hald which does not 1814 yet work with USB2. If the keyboard/mouse does not work in xorg then 1815 add 1816 Option "AllowEmptyInput" "off" 1817 to your ServerLayout section. This will cause X to use the configured 1818 kbd and mouse sections from your xorg.conf. 1819 182020090215: 1821 The GENERIC kernels for all architectures now default to the new USB2 1822 stack. No kernel config options or code have been removed so if a 1823 problem arises please report it and optionally revert to the old USB 1824 stack. If you are loading USB kernel modules or have a custom kernel 1825 that includes GENERIC then ensure that usb names are also changed over, 1826 eg uftdi -> usb2_serial_ftdi. 1827 1828 Older programs linked against the ports libusb 0.1 need to be 1829 redirected to the new stack's libusb20. /etc/libmap.conf can 1830 be used for this: 1831 # Map old usb library to new one for usb2 stack 1832 libusb-0.1.so.8 libusb20.so.1 1833 183420090209: 1835 All USB ethernet devices now attach as interfaces under the name ueN 1836 (eg. ue0). This is to provide a predictable name as vendors often 1837 change usb chipsets in a product without notice. 1838 183920090203: 1840 The ichsmb(4) driver has been changed to require SMBus slave 1841 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1842 All of the other SMBus controller drivers require left-justified 1843 slave addresses, so this change makes all the drivers provide the 1844 same interface. 1845 184620090201: 1847 INET6 statistics (struct ip6stat) was updated. 1848 netstat(1) needs to be recompiled. 1849 185020090119: 1851 NTFS has been removed from GENERIC kernel on amd64 to match 1852 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1853 will load ntfs.ko module automatically when NTFS support is 1854 actually needed, unless ntfs.ko is not installed or security 1855 level prohibits loading kernel modules. If either is the case, 1856 "options NTFS" has to be added into kernel config. 1857 185820090115: 1859 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1860 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1861 800061. User space tools that rely on the size of struct tcpcb in 1862 tcp_var.h (e.g. sockstat) need to be recompiled. 1863 186420081225: 1865 ng_tty(4) module updated to match the new TTY subsystem. 1866 Due to API change, user-level applications must be updated. 1867 New API support added to mpd5 CVS and expected to be present 1868 in next mpd5.3 release. 1869 187020081219: 1871 With __FreeBSD_version 800060 the makefs tool is part of 1872 the base system (it was a port). 1873 187420081216: 1875 The afdata and ifnet locks have been changed from mutexes to 1876 rwlocks, network modules will need to be re-compiled. 1877 187820081214: 1879 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1880 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1881 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1882 architecture and 40 bytes on 64-bit architecture. The userland 1883 applications "arp" and "ndp" have been updated accordingly. 1884 The output from "netstat -r" shows only routing entries and 1885 none of the L2 information. 1886 188720081130: 1888 __FreeBSD_version 800057 marks the switchover from the 1889 binary ath hal to source code. Users must add the line: 1890 1891 options AH_SUPPORT_AR5416 1892 1893 to their kernel config files when specifying: 1894 1895 device ath_hal 1896 1897 The ath_hal module no longer exists; the code is now compiled 1898 together with the driver in the ath module. It is now 1899 possible to tailor chip support (i.e. reduce the set of chips 1900 and thereby the code size); consult ath_hal(4) for details. 1901 190220081121: 1903 __FreeBSD_version 800054 adds memory barriers to 1904 <machine/atomic.h>, new interfaces to ifnet to facilitate 1905 multiple hardware transmit queues for cards that support 1906 them, and a lock-less ring-buffer implementation to 1907 enable drivers to more efficiently manage queueing of 1908 packets. 1909 191020081117: 1911 A new version of ZFS (version 13) has been merged to -HEAD. 1912 This version has zpool attribute "listsnapshots" off by 1913 default, which means "zfs list" does not show snapshots, 1914 and is the same as Solaris behavior. 1915 191620081028: 1917 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1918 191920081009: 1920 The uhci, ohci, ehci and slhci USB Host controller drivers have 1921 been put into separate modules. If you load the usb module 1922 separately through loader.conf you will need to load the 1923 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1924 controller add the following to loader.conf: 1925 1926 uhci_load="YES" 1927 ehci_load="YES" 1928 192920081009: 1930 The ABI used by the PMC toolset has changed. Please keep 1931 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1932 sync. 1933 193420081009: 1935 atapci kernel module now includes only generic PCI ATA 1936 driver. AHCI driver moved to ataahci kernel module. 1937 All vendor-specific code moved into separate kernel modules: 1938 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1939 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1940 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1941 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1942 194320080820: 1944 The TTY subsystem of the kernel has been replaced by a new 1945 implementation, which provides better scalability and an 1946 improved driver model. Most common drivers have been migrated to 1947 the new TTY subsystem, while others have not. The following 1948 drivers have not yet been ported to the new TTY layer: 1949 1950 PCI/ISA: 1951 cy, digi, rc, rp, sio 1952 1953 USB: 1954 ubser, ucycom 1955 1956 Line disciplines: 1957 ng_h4, ng_tty, ppp, sl, snp 1958 1959 Adding these drivers to your kernel configuration file shall 1960 cause compilation to fail. 1961 196220080818: 1963 ntpd has been upgraded to 4.2.4p5. 1964 196520080801: 1966 OpenSSH has been upgraded to 5.1p1. 1967 1968 For many years, FreeBSD's version of OpenSSH preferred DSA 1969 over RSA for host and user authentication keys. With this 1970 upgrade, we've switched to the vendor's default of RSA over 1971 DSA. This may cause upgraded clients to warn about unknown 1972 host keys even for previously known hosts. Users should 1973 follow the usual procedure for verifying host keys before 1974 accepting the RSA key. 1975 1976 This can be circumvented by setting the "HostKeyAlgorithms" 1977 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1978 command line. 1979 1980 Please note that the sequence of keys offered for 1981 authentication has been changed as well. You may want to 1982 specify IdentityFile in a different order to revert this 1983 behavior. 1984 198520080713: 1986 The sio(4) driver has been removed from the i386 and amd64 1987 kernel configuration files. This means uart(4) is now the 1988 default serial port driver on those platforms as well. 1989 1990 To prevent collisions with the sio(4) driver, the uart(4) driver 1991 uses different names for its device nodes. This means the 1992 onboard serial port will now most likely be called "ttyu0" 1993 instead of "ttyd0". You may need to reconfigure applications to 1994 use the new device names. 1995 1996 When using the serial port as a boot console, be sure to update 1997 /boot/device.hints and /etc/ttys before booting the new kernel. 1998 If you forget to do so, you can still manually specify the hints 1999 at the loader prompt: 2000 2001 set hint.uart.0.at="isa" 2002 set hint.uart.0.port="0x3F8" 2003 set hint.uart.0.flags="0x10" 2004 set hint.uart.0.irq="4" 2005 boot -s 2006 200720080609: 2008 The gpt(8) utility has been removed. Use gpart(8) to partition 2009 disks instead. 2010 201120080603: 2012 The version that Linuxulator emulates was changed from 2.4.2 2013 to 2.6.16. If you experience any problems with Linux binaries 2014 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2015 if it fixes the problem contact emulation mailing list. 2016 201720080525: 2018 ISDN4BSD (I4B) was removed from the src tree. You may need to 2019 update a your kernel configuration and remove relevant entries. 2020 202120080509: 2022 I have checked in code to support multiple routing tables. 2023 See the man pages setfib(1) and setfib(2). 2024 This is a hopefully backwards compatible version, 2025 but to make use of it you need to compile your kernel 2026 with options ROUTETABLES=2 (or more up to 16). 2027 202820080420: 2029 The 802.11 wireless support was redone to enable multi-bss 2030 operation on devices that are capable. The underlying device 2031 is no longer used directly but instead wlanX devices are 2032 cloned with ifconfig. This requires changes to rc.conf files. 2033 For example, change: 2034 ifconfig_ath0="WPA DHCP" 2035 to 2036 wlans_ath0=wlan0 2037 ifconfig_wlan0="WPA DHCP" 2038 see rc.conf(5) for more details. In addition, mergemaster of 2039 /etc/rc.d is highly recommended. Simultaneous update of userland 2040 and kernel wouldn't hurt either. 2041 2042 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2043 modules were merged into the base wlan module. All references 2044 to these modules (e.g. in kernel config files) must be removed. 2045 204620080408: 2047 psm(4) has gained write(2) support in native operation level. 2048 Arbitrary commands can be written to /dev/psm%d and status can 2049 be read back from it. Therefore, an application is responsible 2050 for status validation and error recovery. It is a no-op in 2051 other operation levels. 2052 205320080312: 2054 Support for KSE threading has been removed from the kernel. To 2055 run legacy applications linked against KSE libmap.conf may 2056 be used. The following libmap.conf may be used to ensure 2057 compatibility with any prior release: 2058 2059 libpthread.so.1 libthr.so.1 2060 libpthread.so.2 libthr.so.2 2061 libkse.so.3 libthr.so.3 2062 206320080301: 2064 The layout of struct vmspace has changed. This affects libkvm 2065 and any executables that link against libkvm and use the 2066 kvm_getprocs() function. In particular, but not exclusively, 2067 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2068 The effects are minimal, but it's advisable to upgrade world 2069 nonetheless. 2070 207120080229: 2072 The latest em driver no longer has support in it for the 2073 82575 adapter, this is now moved to the igb driver. The 2074 split was done to make new features that are incompatible 2075 with older hardware easier to do. 2076 207720080220: 2078 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2079 likewise the kernel option is now GEOM_LINUX_LVM. 2080 208120080211: 2082 The default NFS mount mode has changed from UDP to TCP for 2083 increased reliability. If you rely on (insecurely) NFS 2084 mounting across a firewall you may need to update your 2085 firewall rules. 2086 208720080208: 2088 Belatedly note the addition of m_collapse for compacting 2089 mbuf chains. 2090 209120080126: 2092 The fts(3) structures have been changed to use adequate 2093 integer types for their members and so to be able to cope 2094 with huge file trees. The old fts(3) ABI is preserved 2095 through symbol versioning in libc, so third-party binaries 2096 using fts(3) should still work, although they will not take 2097 advantage of the extended types. At the same time, some 2098 third-party software might fail to build after this change 2099 due to unportable assumptions made in its source code about 2100 fts(3) structure members. Such software should be fixed 2101 by its vendor or, in the worst case, in the ports tree. 2102 FreeBSD_version 800015 marks this change for the unlikely 2103 case that a portable fix is impossible. 2104 210520080123: 2106 To upgrade to -current after this date, you must be running 2107 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2108 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2109 211020071128: 2111 The ADAPTIVE_GIANT kernel option has been retired because its 2112 functionality is the default now. 2113 211420071118: 2115 The AT keyboard emulation of sunkbd(4) has been turned on 2116 by default. In order to make the special symbols of the Sun 2117 keyboards driven by sunkbd(4) work under X these now have 2118 to be configured the same way as Sun USB keyboards driven 2119 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2120 2121 Option "XkbLayout" "us" 2122 Option "XkbRules" "xorg" 2123 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2124 212520071024: 2126 It has been decided that it is desirable to provide ABI 2127 backwards compatibility to the FreeBSD 4/5/6 versions of the 2128 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2129 broken with the introduction of PCI domain support (see the 2130 20070930 entry). Unfortunately, this required the ABI of 2131 PCIOCGETCONF to be broken again in order to be able to 2132 provide backwards compatibility to the old version of that 2133 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2134 again. As for prominent ports this affects neither pciutils 2135 nor xorg-server this time, the hal port needs to be rebuilt 2136 however. 2137 213820071020: 2139 The misnamed kthread_create() and friends have been renamed 2140 to kproc_create() etc. Many of the callers already 2141 used kproc_start().. 2142 I will return kthread_create() and friends in a while 2143 with implementations that actually create threads, not procs. 2144 Renaming corresponds with version 800002. 2145 214620071010: 2147 RELENG_7 branched. 2148 2149COMMON ITEMS: 2150 2151 General Notes 2152 ------------- 2153 Avoid using make -j when upgrading. While generally safe, there are 2154 sometimes problems using -j to upgrade. If your upgrade fails with 2155 -j, please try again without -j. From time to time in the past there 2156 have been problems using -j with buildworld and/or installworld. This 2157 is especially true when upgrading between "distant" versions (eg one 2158 that cross a major release boundary or several minor releases, or when 2159 several months have passed on the -current branch). 2160 2161 Sometimes, obscure build problems are the result of environment 2162 poisoning. This can happen because the make utility reads its 2163 environment when searching for values for global variables. To run 2164 your build attempts in an "environmental clean room", prefix all make 2165 commands with 'env -i '. See the env(1) manual page for more details. 2166 2167 When upgrading from one major version to another it is generally best 2168 to upgrade to the latest code in the currently installed branch first, 2169 then do an upgrade to the new branch. This is the best-tested upgrade 2170 path, and has the highest probability of being successful. Please try 2171 this approach before reporting problems with a major version upgrade. 2172 2173 When upgrading a live system, having a root shell around before 2174 installing anything can help undo problems. Not having a root shell 2175 around can lead to problems if pam has changed too much from your 2176 starting point to allow continued authentication after the upgrade. 2177 2178 ZFS notes 2179 --------- 2180 When upgrading the boot ZFS pool to a new version, always follow 2181 these two steps: 2182 2183 1.) recompile and reinstall the ZFS boot loader and boot block 2184 (this is part of "make buildworld" and "make installworld") 2185 2186 2.) update the ZFS boot block on your boot drive 2187 2188 The following example updates the ZFS boot block on the first 2189 partition (freebsd-boot) of a GPT partitioned drive ad0: 2190 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2191 2192 Non-boot pools do not need these updates. 2193 2194 To build a kernel 2195 ----------------- 2196 If you are updating from a prior version of FreeBSD (even one just 2197 a few days old), you should follow this procedure. It is the most 2198 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2199 2200 make kernel-toolchain 2201 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2202 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2203 2204 To test a kernel once 2205 --------------------- 2206 If you just want to boot a kernel once (because you are not sure 2207 if it works, or if you want to boot a known bad kernel to provide 2208 debugging information) run 2209 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2210 nextboot -k testkernel 2211 2212 To just build a kernel when you know that it won't mess you up 2213 -------------------------------------------------------------- 2214 This assumes you are already running a CURRENT system. Replace 2215 ${arch} with the architecture of your machine (e.g. "i386", 2216 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2217 2218 cd src/sys/${arch}/conf 2219 config KERNEL_NAME_HERE 2220 cd ../compile/KERNEL_NAME_HERE 2221 make depend 2222 make 2223 make install 2224 2225 If this fails, go to the "To build a kernel" section. 2226 2227 To rebuild everything and install it on the current system. 2228 ----------------------------------------------------------- 2229 # Note: sometimes if you are running current you gotta do more than 2230 # is listed here if you are upgrading from a really old current. 2231 2232 <make sure you have good level 0 dumps> 2233 make buildworld 2234 make kernel KERNCONF=YOUR_KERNEL_HERE 2235 [1] 2236 <reboot in single user> [3] 2237 mergemaster -p [5] 2238 make installworld 2239 mergemaster -i [4] 2240 make delete-old [6] 2241 <reboot> 2242 2243 To cross-install current onto a separate partition 2244 -------------------------------------------------- 2245 # In this approach we use a separate partition to hold 2246 # current's root, 'usr', and 'var' directories. A partition 2247 # holding "/", "/usr" and "/var" should be about 2GB in 2248 # size. 2249 2250 <make sure you have good level 0 dumps> 2251 <boot into -stable> 2252 make buildworld 2253 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2254 <maybe newfs current's root partition> 2255 <mount current's root partition on directory ${CURRENT_ROOT}> 2256 make installworld DESTDIR=${CURRENT_ROOT} 2257 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2258 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2259 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2260 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2261 <reboot into current> 2262 <do a "native" rebuild/install as described in the previous section> 2263 <maybe install compatibility libraries from ports/misc/compat*> 2264 <reboot> 2265 2266 2267 To upgrade in-place from stable to current 2268 ---------------------------------------------- 2269 <make sure you have good level 0 dumps> 2270 make buildworld [9] 2271 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2272 [1] 2273 <reboot in single user> [3] 2274 mergemaster -p [5] 2275 make installworld 2276 mergemaster -i [4] 2277 make delete-old [6] 2278 <reboot> 2279 2280 Make sure that you've read the UPDATING file to understand the 2281 tweaks to various things you need. At this point in the life 2282 cycle of current, things change often and you are on your own 2283 to cope. The defaults can also change, so please read ALL of 2284 the UPDATING entries. 2285 2286 Also, if you are tracking -current, you must be subscribed to 2287 freebsd-current@freebsd.org. Make sure that before you update 2288 your sources that you have read and understood all the recent 2289 messages there. If in doubt, please track -stable which has 2290 much fewer pitfalls. 2291 2292 [1] If you have third party modules, such as vmware, you 2293 should disable them at this point so they don't crash your 2294 system on reboot. 2295 2296 [3] From the bootblocks, boot -s, and then do 2297 fsck -p 2298 mount -u / 2299 mount -a 2300 cd src 2301 adjkerntz -i # if CMOS is wall time 2302 Also, when doing a major release upgrade, it is required that 2303 you boot into single user mode to do the installworld. 2304 2305 [4] Note: This step is non-optional. Failure to do this step 2306 can result in a significant reduction in the functionality of the 2307 system. Attempting to do it by hand is not recommended and those 2308 that pursue this avenue should read this file carefully, as well 2309 as the archives of freebsd-current and freebsd-hackers mailing lists 2310 for potential gotchas. The -U option is also useful to consider. 2311 See mergemaster(8) for more information. 2312 2313 [5] Usually this step is a noop. However, from time to time 2314 you may need to do this if you get unknown user in the following 2315 step. It never hurts to do it all the time. You may need to 2316 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2317 install) after the buildworld before this step if you last updated 2318 from current before 20130425 or from -stable before 20130430. 2319 2320 [6] This only deletes old files and directories. Old libraries 2321 can be deleted by "make delete-old-libs", but you have to make 2322 sure that no program is using those libraries anymore. 2323 2324 [8] In order to have a kernel that can run the 4.x binaries needed to 2325 do an installworld, you must include the COMPAT_FREEBSD4 option in 2326 your kernel. Failure to do so may leave you with a system that is 2327 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2328 required to run the 5.x binaries on more recent kernels. And so on 2329 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2330 2331 Make sure that you merge any new devices from GENERIC since the 2332 last time you updated your kernel config file. 2333 2334 [9] When checking out sources, you must include the -P flag to have 2335 cvs prune empty directories. 2336 2337 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2338 "?=" instead of the "=" assignment operator, so that buildworld can 2339 override the CPUTYPE if it needs to. 2340 2341 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2342 not on the command line, or in /etc/make.conf. buildworld will 2343 warn if it is improperly defined. 2344FORMAT: 2345 2346This file contains a list, in reverse chronological order, of major 2347breakages in tracking -current. It is not guaranteed to be a complete 2348list of such breakages, and only contains entries since October 10, 2007. 2349If you need to see UPDATING entries from before that date, you will need 2350to fetch an UPDATING file from an older FreeBSD release. 2351 2352Copyright information: 2353 2354Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2355 2356Redistribution, publication, translation and use, with or without 2357modification, in full or in part, in any form or format of this 2358document are permitted without further permission from the author. 2359 2360THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2361IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2362WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2363DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2364INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2365(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2366SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2367HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2368STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2369IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2370POSSIBILITY OF SUCH DAMAGE. 2371 2372Contact Warner Losh if you have any questions about your use of 2373this document. 2374 2375$FreeBSD: releng/10.1/UPDATING 298770 2016-04-29 08:02:31Z delphij $ 2376