UPDATING revision 296954
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 1920160316 p31 FreeBSD-SA-16:14.openssh-xauth 20 FreeBSD-SA-16:15.sysarch 21 FreeBSD-EN-16:04.hyperv 22 23 Fix OpenSSH xauth(1) command injection. [SA-16:14] 24 Fix incorrect argument validation in sysarch(2). [SA-16:15] 25 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04] 26 2720160303 p30 FreeBSD-SA-16:12.openssl 28 29 Fix multiple vulnerabilities of OpenSSL. 30 3120160130 p29 FreeBSD-SA-16:11.openssl 32 33 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 34 3520160127 p28 FreeBSD-SA-16:09.ntp 36 FreeBSD-SA-16:10.linux 37 38 Fix multiple vulnerabilities of ntp. [SA-16:09] 39 40 Fix Linux compatibility layer issetugid(2) system call 41 vulnerability. [SA-16:10] 42 4320160114 p27 FreeBSD-SA-16:07.openssh 44 45 Fix OpenSSH client information leak. [SA-16:07] 46 4720160114 p26 FreeBSD-EN-16:02.pf 48 FreeBSD-EN-16:03.yplib 49 FreeBSD-SA-16:01.sctp 50 FreeBSD-SA-16:02.ntp 51 FreeBSD-SA-16:03.linux 52 FreeBSD-SA-16:04.linux 53 FreeBSD-SA-16:05.tcp 54 FreeBSD-SA-16:06.bsnmpd 55 56 Fix pf(4) generating bad TCP checksums. [EN-16:02] 57 Fix infinite loop in YP/NIS client library. [EN-16:03] 58 Fix remote denial of service in SCTP. [SA-16:01] 59 Update NTP to 4.2.8p5. [SA-16:02] 60 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 61 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 62 Fix crash in TCP MD5 signatures. [SA-16:05] 63 Fix insecure default permissions for snmpd.config. [SA-16:06] 64 6520151205 p25 FreeBSD-SA-15:26.openssl 66 67 Fix multiple OpenSSL vulnerabilities. [SA-15:26] 68 6920151104 p24 FreeBSD-SA-15:25.ntp [revised] 70 FreeBSD-EN-15:19.kqueue 71 FreeBSD-EN-15:20.vm 72 73 Fix regression in ntpd(8) lacking support for RAWDCF reference 74 clock in 10.1-RELEASE-p23. [SA-15:25.ntp] 75 76 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 77 78 Fix applications exiting due to segmentation violation on a correct 79 memory address. [EN-15:20] 80 8120151026: p23 FreeBSD-SA-15:25.ntp 82 83 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 84 85 The configuration file syntax has been changed, thus mergemaster 86 run is recommended. Now the "kod" parameter requires "limited" 87 parameter. If the ntp.conf is not updated, the ntpd will run 88 successfully, but with KoD disabled. 89 9020151002: p22 FreeBSD-SA-15:24.rpcbind [revised] 91 Revised patch to address a regression that prevents NIS from working. 92 9320150929: p21 FreeBSD-SA-15:24.rpcbind 94 95 Fix rpcbind(8) remote denial of service. [SA-15:24] 96 9720150916: p20 FreeBSD-EN-15:18.pkg 98 99 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 100 10120150825: p19 FreeBSD-SA-15:21.amd64 102 FreeBSD-SA-15:22.openssh 103 FreeBSD-EN-15:14.ixgbe 104 FreeBSD-EN-15:15.pkg 105 106 Fix local privilege escalation in IRET handler. [SA-15:21] 107 108 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 109 110 Disabled ixgbe(4) flow-director support. [EN-15:14] 111 112 Fix insufficient check of unsupported pkg(7) signature methods. 113 [EN-15:15] 114 11520150818: p18 FreeBSD-SA-15:20.expat 116 117 Fix multiple integer overflows in expat (libbsdxml) XML parser. 118 [SA-15:20] 119 12020150805: p17 FreeBSD-SA-15:18.bsdpatch 121 FreeBSD-SA-15:19.routed 122 123 Fix patch(1) shell injection vulnerability via ed(1). 124 [SA-15:18] 125 126 Fix routed remote denial of service vulnerability. [SA-15:19] 127 12820150728: p16 FreeBSD-SA-15:14.bsdpatch 129 FreeBSD-SA-15:15.tcp 130 FreeBSD-SA-15:16.openssh 131 132 Fix patch(1) shell injection vulnerability. [SA-15:14] 133 134 Fix resource exhaustion in TCP reassembly. [SA-15:15] 135 136 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 137 13820150721: p15 FreeBSD-SA-15:13.tcp 139 140 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 141 [SA-15:13] 142 14320150630: p14 FreeBSD-EN-15:08.sendmail [revised] 144 FreeBSD-EN-15:09.xlocale 145 FreeBSD-EN-15:10.iconv 146 147 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 148 149 Fix inconsistency between locale and rune locale states. 150 [EN-15:09] 151 152 Improved iconv(3) UTF-7 support. [EN-15:10] 153 15420150618: p13 FreeBSD-EN-15:08.sendmail 155 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 156 15720150612: p12 FreeBSD-SA-15:10.openssl 158 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 159 16020150609: p11 FreeBSD-EN-15:06.file 161 FreeBSD-EN-15:07.zfs 162 163 Updated base system file(1) to 5.22 to address multiple denial 164 of service issues. [EN-15:06] 165 166 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 167 [EN-15:07] 168 16920150513: p10 FreeBSD-EN-15:04.freebsd-update 170 FreeBSD-EN-15:05.ufs 171 172 Fix bug with freebsd-update(8) that does not ensure the previous 173 upgrade was completed. [EN-15:04] 174 175 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 176 17720150407: p9 FreeBSD-SA-15:04.igmp [revised] 178 FreeBSD-SA-15:07.ntp 179 FreeBSD-SA-15:08.bsdinstall 180 FreeBSD-SA-15:09.ipv6 181 182 Improved patch for SA-15:04.igmp. 183 184 Fix multiple vulnerabilities of ntp. [SA-15:07] 185 186 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 187 188 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 189 19020150320: p8 191 Fix patch for SA-15:06.openssl. 192 19320150319: p7 FreeBSD-SA-15:06.openssl 194 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 195 19620150225: p6 FreeBSD-SA-15:04.igmp 197 FreeBSD-EN-15:01.vt 198 FreeBSD-EN-15:02.openssl 199 FreeBSD-EN-15:03.freebsd-update 200 201 Fix integer overflow in IGMP protocol. [SA-15:04] 202 203 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 204 205 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 206 207 Fix freebsd-update libraries update ordering issue. [EN-15:03] 208 20920150127: p5 FreeBSD-SA-15:02.kmem 210 FreeBSD-SA-15:03.sctp 211 212 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 213 vulnerability. [SA-15:02] 214 215 Fix SCTP stream reset vulnerability. [SA-15:03] 216 21720150114: p4 FreeBSD-SA-15:01.openssl 218 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 219 22020141223: p3 FreeBSD-SA-14:31.ntp 221 FreeBSD-EN-14:13.freebsd-update 222 223 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 224 Fix directory deletion issue in freebsd-update. [EN-14:13] 225 22620141217: p2 FreeBSD-SA-14:30.unbound 227 Fix unbound remote denial of service vulnerability. 228 22920141210: p1 FreeBSD-SA-14:27.stdio 230 FreeBSD-SA-14:28.file 231 232 Fix buffer overflow in stdio. [SA-14:27] 233 234 Fix multiple vulnerabilities in file(1) and libmagic(3). 235 [SA-14:28] 236 23720140904: 238 The ofwfb driver, used to provide a graphics console on PowerPC when 239 using vt(4), no longer allows mmap() of all of physical memory. This 240 will prevent Xorg on PowerPC with some ATI graphics cards from 241 initializing properly unless x11-servers/xorg-server is updated to 242 1.12.4_8 or newer. 243 24420140831: 245 The libatf-c and libatf-c++ major versions were downgraded to 0 and 246 1 respectively to match the upstream numbers. They were out of 247 sync because, when they were originally added to FreeBSD, the 248 upstream versions were not respected. These libraries are private 249 and not yet built by default, so renumbering them should be a 250 non-issue. However, unclean source trees will yield broken test 251 programs once the operator executes "make delete-old-libs" after a 252 "make installworld". 253 254 Additionally, the atf-sh binary was made private by moving it into 255 /usr/libexec/. Already-built shell test programs will keep the 256 path to the old binary so they will break after "make delete-old" 257 is run. 258 259 If you are using WITH_TESTS=yes (not the default), wipe the object 260 tree and rebuild from scratch to prevent spurious test failures. 261 This is only needed once: the misnumbered libraries and misplaced 262 binaries have been added to OptionalObsoleteFiles.inc so they will 263 be removed during a clean upgrade. 264 26520140814: 266 The ixgbe tunables now match their sysctl counterparts, for example: 267 hw.ixgbe.enable_aim => hw.ix.enable_aim 268 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 269 27020140801: 271 The NFSv4.1 server committed by r269398 changes the internal 272 function call interfaces used between the NFS and krpc modules. 273 As such, __FreeBSD_version was bumped. 274 27520140729: 276 The default unbound configuration has been modified to address 277 issues with reverse lookups on networks that use private 278 address ranges. If you use the local_unbound service, run 279 "service local_unbound setup" as root to regenerate your 280 configuration, then "service local_unbound reload" to load the 281 new configuration. 282 28320140717: 284 It is no longer necessary to include the dwarf version in your DEBUG 285 options in your kernel config file. The bug that required it to be 286 placed in the config file has bene fixed. DEBUG should now just 287 contain -g. The build system will automatically update things 288 to do the right thing. 289 29020140715: 291 Several ABI breaking changes were merged to CTL and new iSCSI code. 292 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 293 iscsictl need to be rebuilt to work with a new kernel. 294 29520140708: 296 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 297 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 298 which differs from the behaviour controlled by this knob.) 299 30020140608: 301 On i386 and amd64 systems, the onifconsole flag is now set by default 302 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 303 as a login TTY if it is set in the bootloader as an active kernel 304 console. No changes in behavior should result otherwise. To revert to 305 the previous behavior, set ttyu0 to "off" in /etc/ttys. 306 30720140512: 308 Clang and llvm have been upgraded to 3.4.1 release. 309 31020140321: 311 Clang and llvm have been upgraded to 3.4 release. 312 31320140306: 314 If a Makefile in a tests/ directory was auto-generating a Kyuafile 315 instead of providing an explicit one, this would prevent such 316 Makefile from providing its own Kyuafile in the future during 317 NO_CLEAN builds. This has been fixed in the Makefiles but manual 318 intervention is needed to clean an objdir if you use NO_CLEAN: 319 # find /usr/obj -name Kyuafile | xargs rm -f 320 32120140303: 322 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 323 capability mode support. Please note that enabling the feature in 324 kernel is still highly recommended. 325 32620140227: 327 OpenSSH is now built with sandbox support, and will use sandbox as 328 the default privilege separation method. This requires Capsicum 329 capability mode support in kernel. 330 33120140216: 332 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 333 been deprecated and will not be part of FreeBSD 11.0 and later 334 releases. If you use this driver, please consider switching to 335 the nfe(4) driver instead. 336 33720140120: 338 10.0-RELEASE. 339 34020131216: 341 The behavior of gss_pseudo_random() for the krb5 mechanism 342 has changed, for applications requesting a longer random string 343 than produced by the underlying enctype's pseudo-random() function. 344 In particular, the random string produced from a session key of 345 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 346 be different at the 17th octet and later, after this change. 347 The counter used in the PRF+ construction is now encoded as a 348 big-endian integer in accordance with RFC 4402. 349 __FreeBSD_version is bumped to 1000701. 350 35120131108: 352 The WITHOUT_ATF build knob has been removed and its functionality 353 has been subsumed into the more generic WITHOUT_TESTS. If you were 354 using the former to disable the build of the ATF libraries, you 355 should change your settings to use the latter. 356 35720131031: 358 The default version of mtree is nmtree which is obtained from 359 NetBSD. The output is generally the same, but may vary 360 slightly. If you found you need identical output adding 361 "-F freebsd9" to the command line should do the trick. For the 362 time being, the old mtree is available as fmtree. 363 36420131014: 365 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 366 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 367 1.1.4_8 and verify bsdyml not linked in, before running "make 368 delete-old-libs": 369 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 370 or 371 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 372 37320131010: 374 The rc.d/jail script has been updated to support jail(8) 375 configuration file. The "jail_<jname>_*" rc.conf(5) variables 376 for per-jail configuration are automatically converted to 377 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 378 This is transparently backward compatible. See below about some 379 incompatibilities and rc.conf(5) manual page for more details. 380 381 These variables are now deprecated in favor of jail(8) configuration 382 file. One can use "rc.d/jail config <jname>" command to generate 383 a jail(8) configuration file in /var/run/jail.<jname>.conf without 384 running the jail(8) utility. The default pathname of the 385 configuration file is /etc/jail.conf and can be specified by 386 using $jail_conf or $jail_<jname>_conf variables. 387 388 Please note that jail_devfs_ruleset accepts an integer at 389 this moment. Please consider to rewrite the ruleset name 390 with an integer. 391 39220130930: 393 BIND has been removed from the base system. If all you need 394 is a local resolver, simply enable and start the local_unbound 395 service instead. Otherwise, several versions of BIND are 396 available in the ports tree. The dns/bind99 port is one example. 397 398 With this change, nslookup(1) and dig(1) are no longer in the base 399 system. Users should instead use host(1) and drill(1) which are 400 in the base system. Alternatively, nslookup and dig can 401 be obtained by installing the dns/bind-tools port. 402 40320130916: 404 With the addition of unbound(8), a new unbound user is now 405 required during installworld. "mergemaster -p" can be used to 406 add the user prior to installworld, as documented in the handbook. 407 40820130911: 409 OpenSSH is now built with DNSSEC support, and will by default 410 silently trust signed SSHFP records. This can be controlled with 411 the VerifyHostKeyDNS client configuration setting. DNSSEC support 412 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 413 41420130906: 415 The GNU Compiler Collection and C++ standard library (libstdc++) 416 are no longer built by default on platforms where clang is the system 417 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 418 options in src.conf. 419 42020130905: 421 The PROCDESC kernel option is now part of the GENERIC kernel 422 configuration and is required for the rwhod(8) to work. 423 If you are using custom kernel configuration, you should include 424 'options PROCDESC'. 425 42620130905: 427 The API and ABI related to the Capsicum framework was modified 428 in backward incompatible way. The userland libraries and programs 429 have to be recompiled to work with the new kernel. This includes the 430 following libraries and programs, but the whole buildworld is 431 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 432 kdump, procstat, rwho, rwhod, uniq. 433 43420130903: 435 AES-NI intrinsic support has been added to gcc. The AES-NI module 436 has been updated to use this support. A new gcc is required to build 437 the aesni module on both i386 and amd64. 438 43920130821: 440 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 441 Thus "device padlock_rng" and "device rdrand_rng" should be 442 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 443 44420130813: 445 WITH_ICONV has been split into two feature sets. WITH_ICONV now 446 enables just the iconv* functionality and is now on by default. 447 WITH_LIBICONV_COMPAT enables the libiconv api and link time 448 compatability. Set WITHOUT_ICONV to build the old way. 449 If you have been using WITH_ICONV before, you will very likely 450 need to turn on WITH_LIBICONV_COMPAT. 451 45220130806: 453 INVARIANTS option now enables DEBUG for code with OpenSolaris and 454 Illumos origin, including ZFS. If you have INVARIANTS in your 455 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 456 explicitly. 457 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 458 locks if WITNESS option was set. Because that generated a lot of 459 witness(9) reports and all of them were believed to be false 460 positives, this is no longer done. New option OPENSOLARIS_WITNESS 461 can be used to achieve the previous behavior. 462 46320130806: 464 Timer values in IPv6 data structures now use time_uptime instead 465 of time_second. Although this is not a user-visible functional 466 change, userland utilities which directly use them---ndp(8), 467 rtadvd(8), and rtsold(8) in the base system---need to be updated 468 to r253970 or later. 469 47020130802: 471 find -delete can now delete the pathnames given as arguments, 472 instead of only files found below them or if the pathname did 473 not contain any slashes. Formerly, the following error message 474 would result: 475 476 find: -delete: <path>: relative path potentially not safe 477 478 Deleting the pathnames given as arguments can be prevented 479 without error messages using -mindepth 1 or by changing 480 directory and passing "." as argument to find. This works in the 481 old as well as the new version of find. 482 48320130726: 484 Behavior of devfs rules path matching has been changed. 485 Pattern is now always matched against fully qualified devfs 486 path and slash characters must be explicitly matched by 487 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 488 subdirectories must be reviewed. 489 49020130716: 491 The default ARM ABI has changed to the ARM EABI. The old ABI is 492 incompatible with the ARM EABI and all programs and modules will 493 need to be rebuilt to work with a new kernel. 494 495 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 496 497 NOTE: Support for the old ABI will be removed in the future and 498 users are advised to upgrade. 499 50020130709: 501 pkg_install has been disconnected from the build if you really need it 502 you should add WITH_PKGTOOLS in your src.conf(5). 503 50420130709: 505 Most of network statistics structures were changed to be able 506 keep 64-bits counters. Thus all tools, that work with networking 507 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 508 50920130629: 510 Fix targets that run multiple make's to use && rather than ; 511 so that subsequent steps depend on success of previous. 512 513 NOTE: if building 'universe' with -j* on stable/8 or stable/9 514 it would be better to start the build using bmake, to avoid 515 overloading the machine. 516 51720130618: 518 Fix a bug that allowed a tracing process (e.g. gdb) to write 519 to a memory-mapped file in the traced process's address space 520 even if neither the traced process nor the tracing process had 521 write access to that file. 522 52320130615: 524 CVS has been removed from the base system. An exact copy 525 of the code is available from the devel/cvs port. 526 52720130613: 528 Some people report the following error after the switch to bmake: 529 530 make: illegal option -- J 531 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 532 ... 533 *** [buildworld] Error code 2 534 535 this likely due to an old instance of make in 536 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 537 which src/Makefile will use that blindly, if it exists, so if 538 you see the above error: 539 540 rm -rf `make -V MAKEPATH` 541 542 should resolve it. 543 54420130516: 545 Use bmake by default. 546 Whereas before one could choose to build with bmake via 547 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 548 make. The goal is to remove these knobs for 10-RELEASE. 549 550 It is worth noting that bmake (like gmake) treats the command 551 line as the unit of failure, rather than statements within the 552 command line. Thus '(cd some/where && dosomething)' is safer 553 than 'cd some/where; dosomething'. The '()' allows consistent 554 behavior in parallel build. 555 55620130429: 557 Fix a bug that allows NFS clients to issue READDIR on files. 558 55920130426: 560 The WITHOUT_IDEA option has been removed because 561 the IDEA patent expired. 562 56320130426: 564 The sysctl which controls TRIM support under ZFS has been renamed 565 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 566 enabled by default. 567 56820130425: 569 The mergemaster command now uses the default MAKEOBJDIRPREFIX 570 rather than creating it's own in the temporary directory in 571 order allow access to bootstrapped versions of tools such as 572 install and mtree. When upgrading from version of FreeBSD where 573 the install command does not support -l, you will need to 574 install a new mergemaster command if mergemaster -p is required. 575 This can be accomplished with the command (cd src/usr.sbin/mergemaster 576 && make install). 577 57820130404: 579 Legacy ATA stack, disabled and replaced by new CAM-based one since 580 FreeBSD 9.0, completely removed from the sources. Kernel modules 581 atadisk and atapi*, user-level tools atacontrol and burncd are 582 removed. Kernel option `options ATA_CAM` is now permanently enabled 583 and removed. 584 58520130319: 586 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 587 and socketpair(2). Software, in particular Kerberos, may 588 automatically detect and use these during building. The resulting 589 binaries will not work on older kernels. 590 59120130308: 592 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 593 information, see the respective 20130304 entry). 594 59520130304: 596 Recent commits to callout(9) changed the size of struct callout, 597 so the KBI is probably heavily disturbed. Also, some functions 598 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 599 by macros. Every kernel module using it won't load, so rebuild 600 is requested. 601 602 The ctl device has been re-enabled in GENERIC for i386 and amd64, 603 but does not initialize by default (because of the new CTL_DISABLE 604 option) to save memory. To re-enable it, remove the CTL_DISABLE 605 option from the kernel config file or set kern.cam.ctl.disable=0 606 in /boot/loader.conf. 607 60820130301: 609 The ctl device has been disabled in GENERIC for i386 and amd64. 610 This was done due to the extra memory being allocated at system 611 initialisation time by the ctl driver which was only used if 612 a CAM target device was created. This makes a FreeBSD system 613 unusable on 128MB or less of RAM. 614 61520130208: 616 A new compression method (lz4) has been merged to -HEAD. Please 617 refer to zpool-features(7) for more information. 618 619 Please refer to the "ZFS notes" section of this file for information 620 on upgrading boot ZFS pools. 621 62220130129: 623 A BSD-licensed patch(1) variant has been added and is installed 624 as bsdpatch, being the GNU version the default patch. 625 To inverse the logic and use the BSD-licensed one as default, 626 while having the GNU version installed as gnupatch, rebuild 627 and install world with the WITH_BSD_PATCH knob set. 628 62920130121: 630 Due to the use of the new -l option to install(1) during build 631 and install, you must take care not to directly set the INSTALL 632 make variable in your /etc/make.conf, /etc/src.conf, or on the 633 command line. If you wish to use the -C flag for all installs 634 you may be able to add INSTALL+=-C to /etc/make.conf or 635 /etc/src.conf. 636 63720130118: 638 The install(1) option -M has changed meaning and now takes an 639 argument that is a file or path to append logs to. In the 640 unlikely event that -M was the last option on the command line 641 and the command line contained at least two files and a target 642 directory the first file will have logs appended to it. The -M 643 option served little practical purpose in the last decade so its 644 use is expected to be extremely rare. 645 64620121223: 647 After switching to Clang as the default compiler some users of ZFS 648 on i386 systems started to experience stack overflow kernel panics. 649 Please consider using 'options KSTACK_PAGES=4' in such configurations. 650 65120121222: 652 GEOM_LABEL now mangles label names read from file system metadata. 653 Mangling affect labels containing spaces, non-printable characters, 654 '%' or '"'. Device names in /etc/fstab and other places may need to 655 be updated. 656 65720121217: 658 By default, only the 10 most recent kernel dumps will be saved. To 659 restore the previous behaviour (no limit on the number of kernel dumps 660 stored in the dump directory) add the following line to /etc/rc.conf: 661 662 savecore_flags="" 663 66420121201: 665 With the addition of auditdistd(8), a new auditdistd user is now 666 required during installworld. "mergemaster -p" can be used to 667 add the user prior to installworld, as documented in the handbook. 668 66920121117: 670 The sin6_scope_id member variable in struct sockaddr_in6 is now 671 filled by the kernel before passing the structure to the userland via 672 sysctl or routing socket. This means the KAME-specific embedded scope 673 id in sin6_addr.s6_addr[2] is always cleared in userland application. 674 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 675 __FreeBSD_version is bumped to 1000025. 676 67720121105: 678 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 679 This means that the world and kernel will be compiled with clang 680 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 681 and /usr/bin/cpp. To disable this behavior and revert to building 682 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 683 of current may need to bootstrap WITHOUT_CLANG first if the clang 684 build fails (its compatibility window doesn't extend to the 9 stable 685 branch point). 686 68720121102: 688 The IPFIREWALL_FORWARD kernel option has been removed. Its 689 functionality now turned on by default. 690 69120121023: 692 The ZERO_COPY_SOCKET kernel option has been removed and 693 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 694 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 695 mechanism which is not safe and may result in kernel crashes. 696 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 697 driver supports disposeable external page sized mbuf storage. 698 Proper replacements for both zero-copy mechanisms are under 699 consideration and will eventually lead to complete removal 700 of the two kernel options. 701 70220121023: 703 The IPv4 network stack has been converted to network byte 704 order. The following modules need to be recompiled together 705 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 706 pf(4), ipfw(4), ng_ipfw(4), stf(4). 707 70820121022: 709 Support for non-MPSAFE filesystems was removed from VFS. The 710 VFS_VERSION was bumped, all filesystem modules shall be 711 recompiled. 712 71320121018: 714 All the non-MPSAFE filesystems have been disconnected from 715 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 716 portalfs, smbfs, xfs. 717 71820121016: 719 The interface cloning API and ABI has changed. The following 720 modules need to be recompiled together with kernel: 721 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 722 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 723 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 724 72520121015: 726 The sdhci driver was split in two parts: sdhci (generic SD Host 727 Controller logic) and sdhci_pci (actual hardware driver). 728 No kernel config modifications are required, but if you 729 load sdhc as a module you must switch to sdhci_pci instead. 730 73120121014: 732 Import the FUSE kernel and userland support into base system. 733 73420121013: 735 The GNU sort(1) program has been removed since the BSD-licensed 736 sort(1) has been the default for quite some time and no serious 737 problems have been reported. The corresponding WITH_GNU_SORT 738 knob has also gone. 739 74020121006: 741 The pfil(9) API/ABI for AF_INET family has been changed. Packet 742 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 743 with new kernel. 744 74520121001: 746 The net80211(4) ABI has been changed to allow for improved driver 747 PS-POLL and power-save support. All wireless drivers need to be 748 recompiled to work with the new kernel. 749 75020120913: 751 The random(4) support for the VIA hardware random number 752 generator (`PADLOCK') is no longer enabled unconditionally. 753 Add the padlock_rng device in the custom kernel config if 754 needed. The GENERIC kernels on i386 and amd64 do include the 755 device, so the change only affects the custom kernel 756 configurations. 757 75820120908: 759 The pf(4) packet filter ABI has been changed. pfctl(8) and 760 snmp_pf module need to be recompiled to work with new kernel. 761 76220120828: 763 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 764 to -HEAD. Pools that have empty_bpobj in active state can not be 765 imported read-write with ZFS implementations that do not support 766 this feature. For more information read the zpool-features(5) 767 manual page. 768 76920120727: 770 The sparc64 ZFS loader has been changed to no longer try to auto- 771 detect ZFS providers based on diskN aliases but now requires these 772 to be explicitly listed in the OFW boot-device environment variable. 773 77420120712: 775 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 776 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 777 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 778 77920120712: 780 The following sysctls and tunables have been renamed for consistency 781 with other variables: 782 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 783 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 784 78520120628: 786 The sort utility has been replaced with BSD sort. For now, GNU sort 787 is also available as "gnusort" or the default can be set back to 788 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 789 installed as "bsdsort". 790 79120120611: 792 A new version of ZFS (pool version 5000) has been merged to -HEAD. 793 Starting with this version the old system of ZFS pool versioning 794 is superseded by "feature flags". This concept enables forward 795 compatibility against certain future changes in functionality of ZFS 796 pools. The first read-only compatible "feature flag" for ZFS pools 797 is named "com.delphix:async_destroy". For more information 798 read the new zpool-features(5) manual page. 799 Please refer to the "ZFS notes" section of this file for information 800 on upgrading boot ZFS pools. 801 80220120417: 803 The malloc(3) implementation embedded in libc now uses sources imported 804 as contrib/jemalloc. The most disruptive API change is to 805 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 806 delete it prior to installworld, and optionally re-create it using the 807 new format after rebooting. See malloc.conf(5) for details 808 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 809 NAMESPACE section). 810 81120120328: 812 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 813 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 814 now spelled mips. This is to aid compatibility with third-party 815 software that expects this naming scheme in uname(3). Little-endian 816 settings are unchanged. If you are updating a big-endian mips64 machine 817 from before this change, you may need to set MACHINE_ARCH=mips64 in 818 your environment before the new build system will recognize your machine. 819 82020120306: 821 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 822 platforms. 823 82420120229: 825 Now unix domain sockets behave "as expected" on nullfs(5). Previously 826 nullfs(5) did not pass through all behaviours to the underlying layer, 827 as a result if we bound to a socket on the lower layer we could connect 828 only to the lower path; if we bound to the upper layer we could connect 829 only to the upper path. The new behavior is one can connect to both the 830 lower and the upper paths regardless what layer path one binds to. 831 83220120211: 833 The getifaddrs upgrade path broken with 20111215 has been restored. 834 If you have upgraded in between 20111215 and 20120209 you need to 835 recompile libc again with your kernel. You still need to recompile 836 world to be able to configure CARP but this restriction already 837 comes from 20111215. 838 83920120114: 840 The set_rcvar() function has been removed from /etc/rc.subr. All 841 base and ports rc.d scripts have been updated, so if you have a 842 port installed with a script in /usr/local/etc/rc.d you can either 843 hand-edit the rcvar= line, or reinstall the port. 844 845 An easy way to handle the mass-update of /etc/rc.d: 846 rm /etc/rc.d/* && mergemaster -i 847 84820120109: 849 panic(9) now stops other CPUs in the SMP systems, disables interrupts 850 on the current CPU and prevents other threads from running. 851 This behavior can be reverted using the kern.stop_scheduler_on_panic 852 tunable/sysctl. 853 The new behavior can be incompatible with kern.sync_on_panic. 854 85520111215: 856 The carp(4) facility has been changed significantly. Configuration 857 of the CARP protocol via ifconfig(8) has changed, as well as format 858 of CARP events submitted to devd(8) has changed. See manual pages 859 for more information. The arpbalance feature of carp(4) is currently 860 not supported anymore. 861 862 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 863 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 864 need to be recompiled. 865 86620111122: 867 The acpi_wmi(4) status device /dev/wmistat has been renamed to 868 /dev/wmistat0. 869 87020111108: 871 The option VFS_ALLOW_NONMPSAFE option has been added in order to 872 explicitely support non-MPSAFE filesystems. 873 It is on by default for all supported platform at this present 874 time. 875 87620111101: 877 The broken amd(4) driver has been replaced with esp(4) in the amd64, 878 i386 and pc98 GENERIC kernel configuration files. 879 88020110930: 881 sysinstall has been removed 882 88320110923: 884 The stable/9 branch created in subversion. This corresponds to the 885 RELENG_9 branch in CVS. 886 88720110913: 888 This commit modifies vfs_register() so that it uses a hash 889 calculation to set vfc_typenum, which is enabled by default. 890 The first time a system is booted after this change, the 891 vfc_typenum values will change for all file systems. The 892 main effect of this is a change to the NFS server file handles 893 for file systems that use vfc_typenum in their fsid, such as ZFS. 894 It will, however, prevent vfc_typenum from changing when file 895 systems are loaded in a different order for subsequent reboots. 896 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 897 until you are ready to remount all NFS clients after a reboot. 898 89920110828: 900 Bump the shared library version numbers for libraries that 901 do not use symbol versioning, have changed the ABI compared 902 to stable/8 and which shared library version was not bumped. 903 Done as part of 9.0-RELEASE cycle. 904 90520110815: 906 During the merge of Capsicum features, the fget(9) KPI was modified. 907 This may require the rebuilding of out-of-tree device drivers -- 908 issues have been reported specifically with the nVidia device driver. 909 __FreeBSD_version is bumped to 900041. 910 911 Also, there is a period between 20110811 and 20110814 where the 912 special devices /dev/{stdin,stdout,stderr} did not work correctly. 913 Building world from a kernel during that window may not work. 914 91520110628: 916 The packet filter (pf) code has been updated to OpenBSD 4.5. 917 You need to update userland tools to be in sync with kernel. 918 This update breaks backward compatibility with earlier pfsync(4) 919 versions. Care must be taken when updating redundant firewall setups. 920 92120110608: 922 The following sysctls and tunables are retired on x86 platforms: 923 machdep.hlt_cpus 924 machdep.hlt_logical_cpus 925 The following sysctl is retired: 926 machdep.hyperthreading_allowed 927 The sysctls were supposed to provide a way to dynamically offline and 928 online selected CPUs on x86 platforms, but the implementation has not 929 been reliable especially with SCHED_ULE scheduler. 930 machdep.hyperthreading_allowed tunable is still available to ignore 931 hyperthreading CPUs at OS level. 932 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 933 where X is an APIC ID of a CPU. Be advised, though, that disabling 934 CPUs in non-uniform fashion will result in non-uniform topology and 935 may lead to sub-optimal system performance with SCHED_ULE, which is 936 a default scheduler. 937 93820110607: 939 cpumask_t type is retired and cpuset_t is used in order to describe 940 a mask of CPUs. 941 94220110531: 943 Changes to ifconfig(8) for dynamic address family detection mandate 944 that you are running a kernel of 20110525 or later. Make sure to 945 follow the update procedure to boot a new kernel before installing 946 world. 947 94820110513: 949 Support for sun4v architecture is officially dropped 950 95120110503: 952 Several KPI breaking changes have been committed to the mii(4) layer, 953 the PHY drivers and consequently some Ethernet drivers using mii(4). 954 This means that miibus.ko and the modules of the affected Ethernet 955 drivers need to be recompiled. 956 957 Note to kernel developers: Given that the OUI bit reversion problem 958 was fixed as part of these changes all mii(4) commits related to OUIs, 959 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 960 handling, no longer can be merged verbatim to stable/8 and previous 961 branches. 962 96320110430: 964 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 965 into their kernel configurations along with 'device pci'. 966 96720110427: 968 The default NFS client is now the new NFS client, so fstype "newnfs" 969 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 970 Although mounts via fstype "nfs" will usually work without userland 971 changes, it is recommended that the mount(8) and mount_nfs(8) 972 commands be rebuilt from sources and that a link to mount_nfs called 973 mount_oldnfs be created. The new client is compiled into the 974 kernel with "options NFSCL" and this is needed for diskless root 975 file systems. The GENERIC kernel configs have been changed to use 976 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 977 To use the regular/old client, you can "mount -t oldnfs ...". For 978 a diskless root file system, you must also include a line like: 979 980 vfs.root.mountfrom="oldnfs:" 981 982 in the boot/loader.conf on the root fs on the NFS server to make 983 a diskless root fs use the old client. 984 98520110424: 986 The GENERIC kernels for all architectures now default to the new 987 CAM-based ATA stack. It means that all legacy ATA drivers were 988 removed and replaced by respective CAM drivers. If you are using 989 ATA device names in /etc/fstab or other places, make sure to update 990 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 991 where 'Y's are the sequential numbers starting from zero for each type 992 in order of detection, unless configured otherwise with tunables, 993 see cam(4)). There will be symbolic links created in /dev/ to map 994 old adX devices to the respective adaY. They should provide basic 995 compatibility for file systems mounting in most cases, but they do 996 not support old user-level APIs and do not have respective providers 997 in GEOM. Consider using updated management tools with new device names. 998 999 It is possible to load devices ahci, ata, siis and mvs as modules, 1000 but option ATA_CAM should remain in kernel configuration to make ata 1001 module work as CAM driver supporting legacy ATA controllers. Device ata 1002 still can be used in modular fashion (atacore + ...). Modules atadisk 1003 and atapi* are not used and won't affect operation in ATA_CAM mode. 1004 Note that to use CAM-based ATA kernel should include CAM devices 1005 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1006 them are parts of the cam module. 1007 1008 ataraid(4) functionality is now supported by the RAID GEOM class. 1009 To use it you can load geom_raid kernel module and use graid(8) tool 1010 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1011 1012 No kernel config options or code have been removed, so if a problem 1013 arises, please report it and optionally revert to the old ATA stack. 1014 In order to do it you can remove from the kernel config: 1015 options ATA_CAM 1016 device ahci 1017 device mvs 1018 device siis 1019 , and instead add back: 1020 device atadisk # ATA disk drives 1021 device ataraid # ATA RAID drives 1022 device atapicd # ATAPI CDROM drives 1023 device atapifd # ATAPI floppy drives 1024 device atapist # ATAPI tape drives 1025 102620110423: 1027 The default NFS server has been changed to the new server, which 1028 was referred to as the experimental server. If you need to switch 1029 back to the old NFS server, you must now put the "-o" option on 1030 both the mountd and nfsd commands. This can be done using the 1031 mountd_flags and nfs_server_flags rc.conf variables until an 1032 update to the rc scripts is committed, which is coming soon. 1033 103420110418: 1035 The GNU Objective-C runtime library (libobjc), and other Objective-C 1036 related components have been removed from the base system. If you 1037 require an Objective-C library, please use one of the available ports. 1038 103920110331: 1040 ath(4) has been split into bus- and device- modules. if_ath contains 1041 the HAL, the TX rate control and the network device code. if_ath_pci 1042 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1043 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1044 in order to use ath on everything else. 1045 1046 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1047 need to load if_ath and if_ath_pci for ath(4) operation. 1048 104920110314: 1050 As part of the replacement of sysinstall, the process of building 1051 release media has changed significantly. For details, please re-read 1052 release(7), which has been updated to reflect the new build process. 1053 105420110218: 1055 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1056 is the last available version under GPLv2. It brings a number of new 1057 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1058 4.1 and SSE 4.2), better support for powerpc64, a number of new 1059 directives, and lots of other small improvements. See the ChangeLog 1060 file in contrib/binutils for the full details. 1061 106220110218: 1063 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1064 compliant, and will now use half of hash for authentication. 1065 This will break interoperability with all stacks (including all 1066 actual FreeBSD versions) who implement 1067 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1068 authentication). 1069 The only workaround with such peers is to use another HMAC 1070 algorithm for IPsec ("phase 2") authentication. 1071 107220110207: 1073 Remove the uio_yield prototype and symbol. This function has 1074 been misnamed since it was introduced and should not be 1075 globally exposed with this name. The equivalent functionality 1076 is now available using kern_yield(curthread->td_user_pri). 1077 The function remains undocumented. 1078 107920110112: 1080 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1081 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1082 for scalar sysctls is defined but disabled. Code that needs 1083 UQUAD to pass the type checking that must compile on older 1084 systems where the define is not present can check against 1085 __FreeBSD_version >= 900030. 1086 1087 The system dialog(1) has been replaced with a new version previously 1088 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1089 with the previous version, but the libdialog associated with it has 1090 a largely incompatible API. As such, the original version of libdialog 1091 will be kept temporarily as libodialog, until its base system consumers 1092 are replaced or updated. Bump __FreeBSD_version to 900030. 1093 109420110103: 1095 If you are trying to run make universe on a -stable system, and you get 1096 the following warning: 1097 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1098 unknown. config(8) likely too old." 1099 or something similar to it, then you must upgrade your -stable system 1100 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1101 stable/8) or build the config from the latest stable/8 branch and 1102 install it on your system. 1103 1104 Prior to this date, building a current universe on 8-stable system from 1105 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1106 error in the first kernel build phase. A new config on those old 1107 systems will fix that problem for older versions of -current. 1108 110920101228: 1110 The TCP stack has been modified to allow Khelp modules to interact with 1111 it via helper hook points and store per-connection data in the TCP 1112 control block. Bump __FreeBSD_version to 900029. User space tools that 1113 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1114 be recompiled. 1115 111620101114: 1117 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1118 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1119 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1120 to take advantage of it instead of using custom implementations. This 1121 means that these drivers now no longer unconditionally advertise 1122 support for flow control but only do so if flow control is a selected 1123 media option. This was implemented in the generic support that way in 1124 order to allow flow control to be switched on and off via ifconfig(8) 1125 with the PHY specific default to typically off in order to protect 1126 from unwanted effects. Consequently, if you used flow control with 1127 one of the above mentioned drivers you now need to explicitly enable 1128 it, for example via: 1129 ifconfig bge0 media auto mediaopt flowcontrol 1130 1131 Along with the above mentioned changes generic support for setting 1132 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1133 e1000phy(4) as well as ip1000phy(4) have been converted to take 1134 advantage of it. This means that these drivers now no longer take the 1135 link0 parameter for selecting master mode but the master media option 1136 has to be used instead, for example like in the following: 1137 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1138 1139 Selection of master mode now is also available with all other PHY 1140 drivers supporting 1000baseT. 1141 114220101111: 1143 The TCP stack has received a significant update to add support for 1144 modularised congestion control and generally improve the clarity of 1145 congestion control decisions. Bump __FreeBSD_version to 900025. User 1146 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1147 sockstat) need to be recompiled. 1148 114920101002: 1150 The man(1) utility has been replaced by a new version that no longer 1151 uses /etc/manpath.config. Please consult man.conf(5) for how to 1152 migrate local entries to the new format. 1153 115420100928: 1155 The copyright strings printed by login(1) and sshd(8) at the time of a 1156 new connection have been removed to follow other operating systems and 1157 upstream sshd. 1158 115920100915: 1160 A workaround for a fixed ld bug has been removed in kernel code, 1161 so make sure that your system ld is built from sources after 1162 revision 210245 from 2010-07-19 (r211583 if building head kernel 1163 on stable/8, r211584 for stable/7; both from 2010-08-21). 1164 A symptom of incorrect ld version is different addresses for 1165 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1166 116720100913: 1168 The $ipv6_prefer variable in rc.conf(5) has been split into 1169 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1170 1171 The $ip6addrctl_policy is a variable to choose a pre-defined 1172 address selection policy set by ip6addrctl(8). A value 1173 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1174 default is "AUTO". 1175 1176 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1177 flag (see an entry of 20090926) is set on an interface with no 1178 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1179 security reason. If you want IPv6 link-local address on all 1180 interfaces by default, set this to "YES". 1181 1182 The old ipv6_prefer="YES" is equivalent to 1183 ipv6_activate_all_interfaces="YES" and 1184 ip6addrctl_policy="ipv6_prefer". 1185 118620100913: 1187 DTrace has grown support for userland tracing. Due to this, DTrace is 1188 now i386 and amd64 only. 1189 dtruss(1) is now installed by default on those systems and a new 1190 kernel module is needed for userland tracing: fasttrap. 1191 No changes to your kernel config file are necessary to enable 1192 userland tracing, but you might consider adding 'STRIP=' and 1193 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1194 to have informative userland stack traces in DTrace (ustack). 1195 119620100725: 1197 The acpi_aiboost(4) driver has been removed in favor of the new 1198 aibs(4) driver. You should update your kernel configuration file. 1199 120020100722: 1201 BSD grep has been imported to the base system and it is built by 1202 default. It is completely BSD licensed, highly GNU-compatible, uses 1203 less memory than its GNU counterpart and has a small codebase. 1204 However, it is slower than its GNU counterpart, which is mostly 1205 noticeable for larger searches, for smaller ones it is measurable 1206 but not significant. The reason is complex, the most important factor 1207 is that we lack a modern and efficient regex library and GNU 1208 overcomes this by optimizing the searches internally. Future work 1209 on improving the regex performance is planned, for the meantime, 1210 users that need better performance, can build GNU grep instead by 1211 setting the WITH_GNU_GREP knob. 1212 121320100713: 1214 Due to the import of powerpc64 support, all existing powerpc kernel 1215 configuration files must be updated with a machine directive like this: 1216 machine powerpc powerpc 1217 1218 In addition, an updated config(8) is required to build powerpc kernels 1219 after this change. 1220 122120100713: 1222 A new version of ZFS (version 15) has been merged to -HEAD. 1223 This version uses a python library for the following subcommands: 1224 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1225 For full functionality of these commands the following port must 1226 be installed: sysutils/py-zfs 1227 122820100429: 1229 'vm_page's are now hashed by physical address to an array of mutexes. 1230 Currently this is only used to serialize access to hold_count. Over 1231 time the page queue mutex will be peeled away. This changes the size 1232 of pmap on every architecture. And requires all callers of vm_page_hold 1233 and vm_page_unhold to be updated. 1234 123520100402: 1236 WITH_CTF can now be specified in src.conf (not recommended, there 1237 are some problems with static executables), make.conf (would also 1238 affect ports which do not use GNU make and do not override the 1239 compile targets) or in the kernel config (via "makeoptions 1240 WITH_CTF=yes"). 1241 When WITH_CTF was specified there before this was silently ignored, 1242 so make sure that WITH_CTF is not used in places which could lead 1243 to unwanted behavior. 1244 124520100311: 1246 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1247 to allow 32-bit compatibility on non-x86 platforms. All kernel 1248 configurations on amd64 and ia64 platforms using these options must 1249 be modified accordingly. 1250 125120100113: 1252 The utmp user accounting database has been replaced with utmpx, 1253 the user accounting interface standardized by POSIX. 1254 Unfortunately the semantics of utmp and utmpx don't match, 1255 making it practically impossible to support both interfaces. 1256 The user accounting database is used by tools like finger(1), 1257 last(1), talk(1), w(1) and ac(8). 1258 1259 All applications in the base system use utmpx. This means only 1260 local binaries (e.g. from the ports tree) may still use these 1261 utmp database files. These applications must be rebuilt to make 1262 use of utmpx. 1263 1264 After the system has been upgraded, it is safe to remove the old 1265 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1266 assuming their contents is of no importance anymore. Old wtmp 1267 databases can only be used by last(1) and ac(8) after they have 1268 been converted to the new format using wtmpcvt(1). 1269 127020100108: 1271 Introduce the kernel thread "deadlock resolver" (which can be enabled 1272 via the DEADLKRES option, see NOTES for more details) and the 1273 sleepq_type() function for sleepqueues. 1274 127520091202: 1276 The rc.firewall and rc.firewall6 were unified, and 1277 rc.firewall6 and rc.d/ip6fw were removed. 1278 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1279 variables are obsoleted. Instead, the following new rc 1280 variables are added to rc.d/ipfw: 1281 1282 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1283 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1284 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1285 1286 The meanings correspond to the relevant IPv4 variables. 1287 128820091125: 1289 8.0-RELEASE. 1290 129120091113: 1292 The default terminal emulation for syscons(4) has been changed 1293 from cons25 to xterm on all platforms except pc98. This means 1294 that the /etc/ttys file needs to be updated to ensure correct 1295 operation of applications on the console. 1296 1297 The terminal emulation style can be toggled per window by using 1298 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1299 options can be used to change the compile-time default back to 1300 cons25. 1301 1302 To prevent graphical artifacts, make sure the TERM environment 1303 variable is set to match the terminal emulation that is being 1304 performed by syscons(4). 1305 130620091109: 1307 The layout of the structure ieee80211req_scan_result has changed. 1308 Applications that require wireless scan results (e.g. ifconfig(8)) 1309 from net80211 need to be recompiled. 1310 1311 Applications such as wpa_supplicant(8) may require a full world 1312 build without using NO_CLEAN in order to get synchronized with the 1313 new structure. 1314 131520091025: 1316 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1317 There's one kernel module for each firmware. Adding "device iwnfw" 1318 to the kernel configuration file means including all three firmware 1319 images inside the kernel. If you want to include just the one for 1320 your wireless card, use the devices iwn4965fw, iwn5000fw or 1321 iwn5150fw. 1322 132320090926: 1324 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1325 into rc.d/netif. The changes are the following: 1326 1327 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1328 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1329 Note that both variables need the "inet6" keyword at the head. 1330 1331 Do not set $ipv6_network_interfaces manually if you do not 1332 understand what you are doing. It is not needed in most cases. 1333 1334 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1335 they are obsolete. 1336 1337 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1338 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1339 1340 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1341 all configured interfaces have "inet6 accept_rtadv" in the 1342 $ifconfig_IF_ipv6. These are for backward compatibility. 1343 1344 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1345 functionality of interfaces with no corresponding 1346 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1347 and the default address selection policy of ip6addrctl(8) 1348 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1349 Note that if you want to configure IPv6 functionality on the 1350 disabled interfaces after boot, first you need to clear the flag by 1351 using ifconfig(8) like: 1352 1353 ifconfig em0 inet6 -ifdisabled 1354 1355 If YES, the default address selection policy is set as 1356 IPv6-preferred. 1357 1358 The default value of $ipv6_prefer is NO. 1359 1360 4. If your system need to receive Router Advertisement messages, 1361 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1362 scripts automatically invoke rtsol(8) when the interface becomes 1363 UP. The Router Advertisement messages are used for SLAAC 1364 (State-Less Address AutoConfiguration). 1365 136620090922: 1367 802.11s D3.03 support was committed. This is incompatible with the 1368 previous code, which was based on D3.0. 1369 137020090912: 1371 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1372 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1373 control whether accepting Router Advertisement messages or not. 1374 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1375 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1376 The ifconfig(8) utility now supports these flags. 1377 137820090910: 1379 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1380 mount(8) and -a option for df(1) to see them. 1381 138220090825: 1383 The old tunable hw.bus.devctl_disable has been superseded by 1384 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1385 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1386 is 1000. 1387 138820090813: 1389 Remove the option STOP_NMI. The default action is now to use NMI only 1390 for KDB via the newly introduced function stop_cpus_hard() and 1391 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1392 139320090803: 1394 The stable/8 branch created in subversion. This corresponds to the 1395 RELENG_8 branch in CVS. 1396 139720090719: 1398 Bump the shared library version numbers for all libraries that do not 1399 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1400 __FreeBSD_version to 800105. 1401 140220090714: 1403 Due to changes in the implementation of virtual network stack support, 1404 all network-related kernel modules must be recompiled. As this change 1405 breaks the ABI, bump __FreeBSD_version to 800104. 1406 140720090713: 1408 The TOE interface to the TCP syncache has been modified to remove 1409 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1410 The cxgb driver is the only TOE consumer affected by this change, and 1411 needs to be recompiled along with the kernel. As this change breaks 1412 the ABI, bump __FreeBSD_version to 800103. 1413 141420090712: 1415 Padding has been added to struct tcpcb, sackhint and tcpstat in 1416 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1417 maintaining the ABI. However, this change breaks the ABI, so bump 1418 __FreeBSD_version to 800102. User space tools that rely on the size of 1419 any of these structs (e.g. sockstat) need to be recompiled. 1420 142120090630: 1422 The NFS_LEGACYRPC option has been removed along with the old kernel 1423 RPC implementation that this option selected. Kernel configurations 1424 may need to be adjusted. 1425 142620090629: 1427 The network interface device nodes at /dev/net/<interface> have been 1428 removed. All ioctl operations can be performed the normal way using 1429 routing sockets. The kqueue functionality can generally be replaced 1430 with routing sockets. 1431 143220090628: 1433 The documentation from the FreeBSD Documentation Project (Handbook, 1434 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1435 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1436 143720090624: 1438 The ABI of various structures related to the SYSV IPC API have been 1439 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1440 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1441 800100. 1442 144320090622: 1444 Layout of struct vnet has changed as routing related variables were 1445 moved to their own Vimage module. Modules need to be recompiled. Bump 1446 __FreeBSD_version to 800099. 1447 144820090619: 1449 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1450 respectively. As long as no more than 16 groups per process are used, 1451 no changes should be visible. When more than 16 groups are used, old 1452 binaries may fail if they call getgroups() or getgrouplist() with 1453 statically sized storage. Recompiling will work around this, but 1454 applications should be modified to use dynamically allocated storage 1455 for group arrays as POSIX.1-2008 does not cap an implementation's 1456 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1457 1458 NFS and portalfs mounts may also be affected as the list of groups is 1459 truncated to 16. Users of NFS who use more than 16 groups, should 1460 take care that negative group permissions are not used on the exported 1461 file systems as they will not be reliable unless a GSSAPI based 1462 authentication method is used. 1463 146420090616: 1465 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1466 option compiles in the support for adaptive spinning for lockmgrs 1467 which want to enable it. The lockinit() function now accepts the flag 1468 LK_ADAPTIVE in order to make the lock object subject to adaptive 1469 spinning when both held in write and read mode. 1470 147120090613: 1472 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1473 changed. User applications that use this ioctl need to be rebuilt. 1474 147520090611: 1476 The layout of struct thread has changed. Kernel and modules need to 1477 be rebuilt. 1478 147920090608: 1480 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1481 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1482 148320090602: 1484 window(1) has been removed from the base system. It can now be 1485 installed from ports. The port is called misc/window. 1486 148720090601: 1488 The way we are storing and accessing `routing table' entries has 1489 changed. Programs reading the FIB, like netstat, need to be 1490 re-compiled. 1491 149220090601: 1493 A new netisr implementation has been added for FreeBSD 8. Network 1494 file system modules, such as igmp, ipdivert, and others, should be 1495 rebuilt. 1496 Bump __FreeBSD_version to 800096. 1497 149820090530: 1499 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1500 more valid. 1501 150220090530: 1503 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1504 Bump __FreeBSD_version to 800094. 1505 150620090529: 1507 Add mnt_xflag field to 'struct mount'. File system modules need to be 1508 rebuilt. 1509 Bump __FreeBSD_version to 800093. 1510 151120090528: 1512 The compiling option ADAPTIVE_SX has been retired while it has been 1513 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1514 The KPI for sx_init_flags() changes as accepting flags: 1515 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1516 been introduced in order to handle the reversed logic. 1517 Bump __FreeBSD_version to 800092. 1518 151920090527: 1520 Add support for hierarchical jails. Remove global securelevel. 1521 Bump __FreeBSD_version to 800091. 1522 152320090523: 1524 The layout of struct vnet_net has changed, therefore modules 1525 need to be rebuilt. 1526 Bump __FreeBSD_version to 800090. 1527 152820090523: 1529 The newly imported zic(8) produces a new format in the output. Please 1530 run tzsetup(8) to install the newly created data to /etc/localtime. 1531 153220090520: 1533 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1534 hw.usb.* and is now consistent again with previous releases. 1535 153620090520: 1537 802.11 monitor mode support was revised and driver api's were changed. 1538 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1539 of DLT_IEEE802_11. No user-visible data structures were changed but 1540 applications that use DLT_IEEE802_11 may require changes. 1541 Bump __FreeBSD_version to 800088. 1542 154320090430: 1544 The layout of the following structs has changed: sysctl_oid, 1545 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1546 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1547 panics may be experienced. World rebuild is required for 1548 correctly checking networking state from userland. 1549 Bump __FreeBSD_version to 800085. 1550 155120090429: 1552 MLDv2 and Source-Specific Multicast (SSM) have been merged 1553 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1554 The implementation of SSM within FreeBSD's IPv6 stack closely 1555 follows the IPv4 implementation. 1556 1557 For kernel developers: 1558 1559 * The most important changes are that the ip6_output() and 1560 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1561 and this lock has been downgraded to a non-recursive mutex. 1562 1563 * As with the changes to the IPv4 stack to support SSM, filtering 1564 of inbound multicast traffic must now be performed by transport 1565 protocols within the IPv6 stack. This does not apply to TCP and 1566 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1567 1568 * The KPIs used by IPv6 multicast are similar to those used by 1569 the IPv4 stack, with the following differences: 1570 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1571 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1572 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1573 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1574 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1575 for MLDv1 have an additional 'timer' argument which is used to 1576 jitter the initial membership report for the solicited-node 1577 multicast membership on-link. 1578 * This is not strictly needed for MLDv2, which already jitters 1579 its report transmissions. However, the 'timer' argument is 1580 preserved in case MLDv1 is active on the interface. 1581 1582 * The KAME linked-list based IPv6 membership implementation has 1583 been refactored to use a vector similar to that used by the IPv4 1584 stack. 1585 Code which maintains a list of its own multicast memberships 1586 internally, e.g. carp, has been updated to reflect the new 1587 semantics. 1588 1589 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1590 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1591 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1592 implementation constraint which needs to be addressed in HEAD. 1593 1594 For application developers: 1595 1596 * The changes are broadly similar to those made for the IPv4 1597 stack. 1598 1599 * The use of IPv4 and IPv6 multicast socket options on the same 1600 socket, using mapped addresses, HAS NOT been tested or supported. 1601 1602 * There are a number of issues with the implementation of various 1603 IPv6 multicast APIs which need to be resolved in the API surface 1604 before the implementation is fully compatible with KAME userland 1605 use, and these are mostly to do with interface index treatment. 1606 1607 * The literature available discusses the use of either the delta / ASM 1608 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1609 using setsourcefilter(3)/getsourcefilter(3). For more information 1610 please refer to RFC 3768, 'Socket Interface Extensions for 1611 Multicast Source Filters'. 1612 1613 * Applications which use the published RFC 3678 APIs should be fine. 1614 1615 For systems administrators: 1616 1617 * The mtest(8) utility has been refactored to support IPv6, in 1618 addition to IPv4. Interface addresses are no longer accepted 1619 as arguments, their names must be used instead. The utility 1620 will map the interface name to its first IPv4 address as 1621 returned by getifaddrs(3). 1622 1623 * The ifmcstat(8) utility has also been updated to print the MLDv2 1624 endpoint state and source filter lists via sysctl(3). 1625 1626 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1627 loopback of IPv6 multicast datagrams by default; it defaults to 1 1628 to preserve the existing behaviour. Disabling multicast loopback is 1629 recommended for optimal system performance. 1630 1631 * The IPv6 MROUTING code has been changed to examine this sysctl 1632 instead of attempting to perform a group lookup before looping 1633 back forwarded datagrams. 1634 1635 Bump __FreeBSD_version to 800084. 1636 163720090422: 1638 Implement low-level Bluetooth HCI API. 1639 Bump __FreeBSD_version to 800083. 1640 164120090419: 1642 The layout of struct malloc_type, used by modules to register new 1643 memory allocation types, has changed. Most modules will need to 1644 be rebuilt or panics may be experienced. 1645 Bump __FreeBSD_version to 800081. 1646 164720090415: 1648 Anticipate overflowing inp_flags - add inp_flags2. 1649 This changes most offsets in inpcb, so checking v4 connection 1650 state will require a world rebuild. 1651 Bump __FreeBSD_version to 800080. 1652 165320090415: 1654 Add an llentry to struct route and struct route_in6. Modules 1655 embedding a struct route will need to be recompiled. 1656 Bump __FreeBSD_version to 800079. 1657 165820090414: 1659 The size of rt_metrics_lite and by extension rtentry has changed. 1660 Networking administration apps will need to be recompiled. 1661 The route command now supports show as an alias for get, weighting 1662 of routes, sticky and nostick flags to alter the behavior of stateful 1663 load balancing. 1664 Bump __FreeBSD_version to 800078. 1665 166620090408: 1667 Do not use Giant for kbdmux(4) locking. This is wrong and 1668 apparently causing more problems than it solves. This will 1669 re-open the issue where interrupt handlers may race with 1670 kbdmux(4) in polling mode. Typical symptoms include (but 1671 not limited to) duplicated and/or missing characters when 1672 low level console functions (such as gets) are used while 1673 interrupts are enabled (for example geli password prompt, 1674 mountroot prompt etc.). Disabling kbdmux(4) may help. 1675 167620090407: 1677 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1678 kernel modules referencing any of the above need to be recompiled. 1679 Bump __FreeBSD_version to 800075. 1680 168120090320: 1682 GEOM_PART has become the default partition slicer for storage devices, 1683 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1684 introduces some changes: 1685 1686 MSDOS/EBR: the devices created from MSDOS extended partition entries 1687 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1688 to devices with offset-based names. fstabs may need to be modified. 1689 1690 BSD: the "geometry does not match label" warning is harmless in most 1691 cases but it points to problems in file system misalignment with 1692 disk geometry. The "c" partition is now implicit, covers the whole 1693 top-level drive and cannot be (mis)used by users. 1694 1695 General: Kernel dumps are now not allowed to be written to devices 1696 whose partition types indicate they are meant to be used for file 1697 systems (or, in case of MSDOS partitions, as something else than 1698 the "386BSD" type). 1699 1700 Most of these changes date approximately from 200812. 1701 170220090319: 1703 The uscanner(4) driver has been removed from the kernel. This follows 1704 Linux removing theirs in 2.6 and making libusb the default interface 1705 (supported by sane). 1706 170720090319: 1708 The multicast forwarding code has been cleaned up. netstat(1) 1709 only relies on KVM now for printing bandwidth upcall meters. 1710 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1711 ip6_mroute_mod respectively. The config(5) options for statically 1712 compiling this code remain the same, i.e. 'options MROUTING'. 1713 171420090315: 1715 Support for the IFF_NEEDSGIANT network interface flag has been 1716 removed, which means that non-MPSAFE network device drivers are no 1717 longer supported. In particular, if_ar, if_sr, and network device 1718 drivers from the old (legacy) USB stack can no longer be built or 1719 used. 1720 172120090313: 1722 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1723 a bunch of new language catalog files have also been added. 1724 This means that some common libc messages are now localized and 1725 they depend on the LC_MESSAGES environmental variable. 1726 172720090313: 1728 The k8temp(4) driver has been renamed to amdtemp(4) since 1729 support for Family 10 and Family 11 CPU families was added. 1730 173120090309: 1732 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1733 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1734 1735 For kernel developers, the most important changes are that the 1736 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1737 and this lock has been downgraded to a non-recursive mutex. 1738 1739 Transport protocols (UDP, Raw IP) are now responsible for filtering 1740 inbound multicast traffic according to group membership and source 1741 filters. The imo_multicast_filter() KPI exists for this purpose. 1742 Transports which do not use multicast (SCTP, TCP) already reject 1743 multicast by default. Forwarding and receive performance may improve 1744 as a mutex acquisition is no longer needed in the ip_input() 1745 low-level input path. in_addmulti() and in_delmulti() are shimmed 1746 to new KPIs which exist to support SSM in-kernel. 1747 1748 For application developers, it is recommended that loopback of 1749 multicast datagrams be disabled for best performance, as this 1750 will still cause the lock to be taken for each looped-back 1751 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1752 be tuned to 0 to disable loopback by default; it defaults to 1 1753 to preserve the existing behaviour. 1754 1755 For systems administrators, to obtain best performance with 1756 multicast reception and multiple groups, it is always recommended 1757 that a card with a suitably precise hash filter is used. Hash 1758 collisions will still result in the lock being taken within the 1759 transport protocol input path to check group membership. 1760 1761 If deploying FreeBSD in an environment with IGMP snooping switches, 1762 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1763 enabled; this forces 224.0.0.0/24 group membership to be announced 1764 via IGMP. 1765 1766 The size of 'struct igmpstat' has changed; netstat needs to be 1767 recompiled to reflect this. 1768 Bump __FreeBSD_version to 800070. 1769 177020090309: 1771 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1772 updated to use it. This requires a buildworld/installworld in order to 1773 update the library and dependencies (usbconfig, etc). Its advisable to 1774 rebuild all ports which uses libusb. More specific directions are given 1775 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1776 libusb are no longer required and can be removed. 1777 177820090302: 1779 A workaround is committed to allow the creation of System V shared 1780 memory segment of size > 2 GB on the 64-bit architectures. 1781 Due to a limitation of the existing ABI, the shm_segsz member 1782 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1783 wrong for large segments. Note that limits must be explicitly 1784 raised to allow such segments to be created. 1785 178620090301: 1787 The layout of struct ifnet has changed, requiring a rebuild of all 1788 network device driver modules. 1789 179020090227: 1791 The /dev handling for the new USB stack has changed, a 1792 buildworld/installworld is required for libusb20. 1793 179420090223: 1795 The new USB2 stack has now been permanently moved in and all kernel and 1796 module names reverted to their previous values (eg, usb, ehci, ohci, 1797 ums, ...). The old usb stack can be compiled in by prefixing the name 1798 with the letter 'o', the old usb modules have been removed. 1799 Updating entry 20090216 for xorg and 20090215 for libmap may still 1800 apply. 1801 180220090217: 1803 The rc.conf(5) option if_up_delay has been renamed to 1804 defaultroute_delay to better reflect its purpose. If you have 1805 customized this setting in /etc/rc.conf you need to update it to 1806 use the new name. 1807 180820090216: 1809 xorg 7.4 wants to configure its input devices via hald which does not 1810 yet work with USB2. If the keyboard/mouse does not work in xorg then 1811 add 1812 Option "AllowEmptyInput" "off" 1813 to your ServerLayout section. This will cause X to use the configured 1814 kbd and mouse sections from your xorg.conf. 1815 181620090215: 1817 The GENERIC kernels for all architectures now default to the new USB2 1818 stack. No kernel config options or code have been removed so if a 1819 problem arises please report it and optionally revert to the old USB 1820 stack. If you are loading USB kernel modules or have a custom kernel 1821 that includes GENERIC then ensure that usb names are also changed over, 1822 eg uftdi -> usb2_serial_ftdi. 1823 1824 Older programs linked against the ports libusb 0.1 need to be 1825 redirected to the new stack's libusb20. /etc/libmap.conf can 1826 be used for this: 1827 # Map old usb library to new one for usb2 stack 1828 libusb-0.1.so.8 libusb20.so.1 1829 183020090209: 1831 All USB ethernet devices now attach as interfaces under the name ueN 1832 (eg. ue0). This is to provide a predictable name as vendors often 1833 change usb chipsets in a product without notice. 1834 183520090203: 1836 The ichsmb(4) driver has been changed to require SMBus slave 1837 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1838 All of the other SMBus controller drivers require left-justified 1839 slave addresses, so this change makes all the drivers provide the 1840 same interface. 1841 184220090201: 1843 INET6 statistics (struct ip6stat) was updated. 1844 netstat(1) needs to be recompiled. 1845 184620090119: 1847 NTFS has been removed from GENERIC kernel on amd64 to match 1848 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1849 will load ntfs.ko module automatically when NTFS support is 1850 actually needed, unless ntfs.ko is not installed or security 1851 level prohibits loading kernel modules. If either is the case, 1852 "options NTFS" has to be added into kernel config. 1853 185420090115: 1855 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1856 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1857 800061. User space tools that rely on the size of struct tcpcb in 1858 tcp_var.h (e.g. sockstat) need to be recompiled. 1859 186020081225: 1861 ng_tty(4) module updated to match the new TTY subsystem. 1862 Due to API change, user-level applications must be updated. 1863 New API support added to mpd5 CVS and expected to be present 1864 in next mpd5.3 release. 1865 186620081219: 1867 With __FreeBSD_version 800060 the makefs tool is part of 1868 the base system (it was a port). 1869 187020081216: 1871 The afdata and ifnet locks have been changed from mutexes to 1872 rwlocks, network modules will need to be re-compiled. 1873 187420081214: 1875 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1876 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1877 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1878 architecture and 40 bytes on 64-bit architecture. The userland 1879 applications "arp" and "ndp" have been updated accordingly. 1880 The output from "netstat -r" shows only routing entries and 1881 none of the L2 information. 1882 188320081130: 1884 __FreeBSD_version 800057 marks the switchover from the 1885 binary ath hal to source code. Users must add the line: 1886 1887 options AH_SUPPORT_AR5416 1888 1889 to their kernel config files when specifying: 1890 1891 device ath_hal 1892 1893 The ath_hal module no longer exists; the code is now compiled 1894 together with the driver in the ath module. It is now 1895 possible to tailor chip support (i.e. reduce the set of chips 1896 and thereby the code size); consult ath_hal(4) for details. 1897 189820081121: 1899 __FreeBSD_version 800054 adds memory barriers to 1900 <machine/atomic.h>, new interfaces to ifnet to facilitate 1901 multiple hardware transmit queues for cards that support 1902 them, and a lock-less ring-buffer implementation to 1903 enable drivers to more efficiently manage queueing of 1904 packets. 1905 190620081117: 1907 A new version of ZFS (version 13) has been merged to -HEAD. 1908 This version has zpool attribute "listsnapshots" off by 1909 default, which means "zfs list" does not show snapshots, 1910 and is the same as Solaris behavior. 1911 191220081028: 1913 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1914 191520081009: 1916 The uhci, ohci, ehci and slhci USB Host controller drivers have 1917 been put into separate modules. If you load the usb module 1918 separately through loader.conf you will need to load the 1919 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1920 controller add the following to loader.conf: 1921 1922 uhci_load="YES" 1923 ehci_load="YES" 1924 192520081009: 1926 The ABI used by the PMC toolset has changed. Please keep 1927 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1928 sync. 1929 193020081009: 1931 atapci kernel module now includes only generic PCI ATA 1932 driver. AHCI driver moved to ataahci kernel module. 1933 All vendor-specific code moved into separate kernel modules: 1934 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1935 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1936 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1937 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1938 193920080820: 1940 The TTY subsystem of the kernel has been replaced by a new 1941 implementation, which provides better scalability and an 1942 improved driver model. Most common drivers have been migrated to 1943 the new TTY subsystem, while others have not. The following 1944 drivers have not yet been ported to the new TTY layer: 1945 1946 PCI/ISA: 1947 cy, digi, rc, rp, sio 1948 1949 USB: 1950 ubser, ucycom 1951 1952 Line disciplines: 1953 ng_h4, ng_tty, ppp, sl, snp 1954 1955 Adding these drivers to your kernel configuration file shall 1956 cause compilation to fail. 1957 195820080818: 1959 ntpd has been upgraded to 4.2.4p5. 1960 196120080801: 1962 OpenSSH has been upgraded to 5.1p1. 1963 1964 For many years, FreeBSD's version of OpenSSH preferred DSA 1965 over RSA for host and user authentication keys. With this 1966 upgrade, we've switched to the vendor's default of RSA over 1967 DSA. This may cause upgraded clients to warn about unknown 1968 host keys even for previously known hosts. Users should 1969 follow the usual procedure for verifying host keys before 1970 accepting the RSA key. 1971 1972 This can be circumvented by setting the "HostKeyAlgorithms" 1973 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1974 command line. 1975 1976 Please note that the sequence of keys offered for 1977 authentication has been changed as well. You may want to 1978 specify IdentityFile in a different order to revert this 1979 behavior. 1980 198120080713: 1982 The sio(4) driver has been removed from the i386 and amd64 1983 kernel configuration files. This means uart(4) is now the 1984 default serial port driver on those platforms as well. 1985 1986 To prevent collisions with the sio(4) driver, the uart(4) driver 1987 uses different names for its device nodes. This means the 1988 onboard serial port will now most likely be called "ttyu0" 1989 instead of "ttyd0". You may need to reconfigure applications to 1990 use the new device names. 1991 1992 When using the serial port as a boot console, be sure to update 1993 /boot/device.hints and /etc/ttys before booting the new kernel. 1994 If you forget to do so, you can still manually specify the hints 1995 at the loader prompt: 1996 1997 set hint.uart.0.at="isa" 1998 set hint.uart.0.port="0x3F8" 1999 set hint.uart.0.flags="0x10" 2000 set hint.uart.0.irq="4" 2001 boot -s 2002 200320080609: 2004 The gpt(8) utility has been removed. Use gpart(8) to partition 2005 disks instead. 2006 200720080603: 2008 The version that Linuxulator emulates was changed from 2.4.2 2009 to 2.6.16. If you experience any problems with Linux binaries 2010 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2011 if it fixes the problem contact emulation mailing list. 2012 201320080525: 2014 ISDN4BSD (I4B) was removed from the src tree. You may need to 2015 update a your kernel configuration and remove relevant entries. 2016 201720080509: 2018 I have checked in code to support multiple routing tables. 2019 See the man pages setfib(1) and setfib(2). 2020 This is a hopefully backwards compatible version, 2021 but to make use of it you need to compile your kernel 2022 with options ROUTETABLES=2 (or more up to 16). 2023 202420080420: 2025 The 802.11 wireless support was redone to enable multi-bss 2026 operation on devices that are capable. The underlying device 2027 is no longer used directly but instead wlanX devices are 2028 cloned with ifconfig. This requires changes to rc.conf files. 2029 For example, change: 2030 ifconfig_ath0="WPA DHCP" 2031 to 2032 wlans_ath0=wlan0 2033 ifconfig_wlan0="WPA DHCP" 2034 see rc.conf(5) for more details. In addition, mergemaster of 2035 /etc/rc.d is highly recommended. Simultaneous update of userland 2036 and kernel wouldn't hurt either. 2037 2038 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2039 modules were merged into the base wlan module. All references 2040 to these modules (e.g. in kernel config files) must be removed. 2041 204220080408: 2043 psm(4) has gained write(2) support in native operation level. 2044 Arbitrary commands can be written to /dev/psm%d and status can 2045 be read back from it. Therefore, an application is responsible 2046 for status validation and error recovery. It is a no-op in 2047 other operation levels. 2048 204920080312: 2050 Support for KSE threading has been removed from the kernel. To 2051 run legacy applications linked against KSE libmap.conf may 2052 be used. The following libmap.conf may be used to ensure 2053 compatibility with any prior release: 2054 2055 libpthread.so.1 libthr.so.1 2056 libpthread.so.2 libthr.so.2 2057 libkse.so.3 libthr.so.3 2058 205920080301: 2060 The layout of struct vmspace has changed. This affects libkvm 2061 and any executables that link against libkvm and use the 2062 kvm_getprocs() function. In particular, but not exclusively, 2063 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2064 The effects are minimal, but it's advisable to upgrade world 2065 nonetheless. 2066 206720080229: 2068 The latest em driver no longer has support in it for the 2069 82575 adapter, this is now moved to the igb driver. The 2070 split was done to make new features that are incompatible 2071 with older hardware easier to do. 2072 207320080220: 2074 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2075 likewise the kernel option is now GEOM_LINUX_LVM. 2076 207720080211: 2078 The default NFS mount mode has changed from UDP to TCP for 2079 increased reliability. If you rely on (insecurely) NFS 2080 mounting across a firewall you may need to update your 2081 firewall rules. 2082 208320080208: 2084 Belatedly note the addition of m_collapse for compacting 2085 mbuf chains. 2086 208720080126: 2088 The fts(3) structures have been changed to use adequate 2089 integer types for their members and so to be able to cope 2090 with huge file trees. The old fts(3) ABI is preserved 2091 through symbol versioning in libc, so third-party binaries 2092 using fts(3) should still work, although they will not take 2093 advantage of the extended types. At the same time, some 2094 third-party software might fail to build after this change 2095 due to unportable assumptions made in its source code about 2096 fts(3) structure members. Such software should be fixed 2097 by its vendor or, in the worst case, in the ports tree. 2098 FreeBSD_version 800015 marks this change for the unlikely 2099 case that a portable fix is impossible. 2100 210120080123: 2102 To upgrade to -current after this date, you must be running 2103 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2104 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2105 210620071128: 2107 The ADAPTIVE_GIANT kernel option has been retired because its 2108 functionality is the default now. 2109 211020071118: 2111 The AT keyboard emulation of sunkbd(4) has been turned on 2112 by default. In order to make the special symbols of the Sun 2113 keyboards driven by sunkbd(4) work under X these now have 2114 to be configured the same way as Sun USB keyboards driven 2115 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2116 2117 Option "XkbLayout" "us" 2118 Option "XkbRules" "xorg" 2119 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2120 212120071024: 2122 It has been decided that it is desirable to provide ABI 2123 backwards compatibility to the FreeBSD 4/5/6 versions of the 2124 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2125 broken with the introduction of PCI domain support (see the 2126 20070930 entry). Unfortunately, this required the ABI of 2127 PCIOCGETCONF to be broken again in order to be able to 2128 provide backwards compatibility to the old version of that 2129 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2130 again. As for prominent ports this affects neither pciutils 2131 nor xorg-server this time, the hal port needs to be rebuilt 2132 however. 2133 213420071020: 2135 The misnamed kthread_create() and friends have been renamed 2136 to kproc_create() etc. Many of the callers already 2137 used kproc_start().. 2138 I will return kthread_create() and friends in a while 2139 with implementations that actually create threads, not procs. 2140 Renaming corresponds with version 800002. 2141 214220071010: 2143 RELENG_7 branched. 2144 2145COMMON ITEMS: 2146 2147 General Notes 2148 ------------- 2149 Avoid using make -j when upgrading. While generally safe, there are 2150 sometimes problems using -j to upgrade. If your upgrade fails with 2151 -j, please try again without -j. From time to time in the past there 2152 have been problems using -j with buildworld and/or installworld. This 2153 is especially true when upgrading between "distant" versions (eg one 2154 that cross a major release boundary or several minor releases, or when 2155 several months have passed on the -current branch). 2156 2157 Sometimes, obscure build problems are the result of environment 2158 poisoning. This can happen because the make utility reads its 2159 environment when searching for values for global variables. To run 2160 your build attempts in an "environmental clean room", prefix all make 2161 commands with 'env -i '. See the env(1) manual page for more details. 2162 2163 When upgrading from one major version to another it is generally best 2164 to upgrade to the latest code in the currently installed branch first, 2165 then do an upgrade to the new branch. This is the best-tested upgrade 2166 path, and has the highest probability of being successful. Please try 2167 this approach before reporting problems with a major version upgrade. 2168 2169 When upgrading a live system, having a root shell around before 2170 installing anything can help undo problems. Not having a root shell 2171 around can lead to problems if pam has changed too much from your 2172 starting point to allow continued authentication after the upgrade. 2173 2174 ZFS notes 2175 --------- 2176 When upgrading the boot ZFS pool to a new version, always follow 2177 these two steps: 2178 2179 1.) recompile and reinstall the ZFS boot loader and boot block 2180 (this is part of "make buildworld" and "make installworld") 2181 2182 2.) update the ZFS boot block on your boot drive 2183 2184 The following example updates the ZFS boot block on the first 2185 partition (freebsd-boot) of a GPT partitioned drive ad0: 2186 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2187 2188 Non-boot pools do not need these updates. 2189 2190 To build a kernel 2191 ----------------- 2192 If you are updating from a prior version of FreeBSD (even one just 2193 a few days old), you should follow this procedure. It is the most 2194 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2195 2196 make kernel-toolchain 2197 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2198 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2199 2200 To test a kernel once 2201 --------------------- 2202 If you just want to boot a kernel once (because you are not sure 2203 if it works, or if you want to boot a known bad kernel to provide 2204 debugging information) run 2205 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2206 nextboot -k testkernel 2207 2208 To just build a kernel when you know that it won't mess you up 2209 -------------------------------------------------------------- 2210 This assumes you are already running a CURRENT system. Replace 2211 ${arch} with the architecture of your machine (e.g. "i386", 2212 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2213 2214 cd src/sys/${arch}/conf 2215 config KERNEL_NAME_HERE 2216 cd ../compile/KERNEL_NAME_HERE 2217 make depend 2218 make 2219 make install 2220 2221 If this fails, go to the "To build a kernel" section. 2222 2223 To rebuild everything and install it on the current system. 2224 ----------------------------------------------------------- 2225 # Note: sometimes if you are running current you gotta do more than 2226 # is listed here if you are upgrading from a really old current. 2227 2228 <make sure you have good level 0 dumps> 2229 make buildworld 2230 make kernel KERNCONF=YOUR_KERNEL_HERE 2231 [1] 2232 <reboot in single user> [3] 2233 mergemaster -p [5] 2234 make installworld 2235 mergemaster -i [4] 2236 make delete-old [6] 2237 <reboot> 2238 2239 To cross-install current onto a separate partition 2240 -------------------------------------------------- 2241 # In this approach we use a separate partition to hold 2242 # current's root, 'usr', and 'var' directories. A partition 2243 # holding "/", "/usr" and "/var" should be about 2GB in 2244 # size. 2245 2246 <make sure you have good level 0 dumps> 2247 <boot into -stable> 2248 make buildworld 2249 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2250 <maybe newfs current's root partition> 2251 <mount current's root partition on directory ${CURRENT_ROOT}> 2252 make installworld DESTDIR=${CURRENT_ROOT} 2253 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2254 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2255 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2256 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2257 <reboot into current> 2258 <do a "native" rebuild/install as described in the previous section> 2259 <maybe install compatibility libraries from ports/misc/compat*> 2260 <reboot> 2261 2262 2263 To upgrade in-place from stable to current 2264 ---------------------------------------------- 2265 <make sure you have good level 0 dumps> 2266 make buildworld [9] 2267 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2268 [1] 2269 <reboot in single user> [3] 2270 mergemaster -p [5] 2271 make installworld 2272 mergemaster -i [4] 2273 make delete-old [6] 2274 <reboot> 2275 2276 Make sure that you've read the UPDATING file to understand the 2277 tweaks to various things you need. At this point in the life 2278 cycle of current, things change often and you are on your own 2279 to cope. The defaults can also change, so please read ALL of 2280 the UPDATING entries. 2281 2282 Also, if you are tracking -current, you must be subscribed to 2283 freebsd-current@freebsd.org. Make sure that before you update 2284 your sources that you have read and understood all the recent 2285 messages there. If in doubt, please track -stable which has 2286 much fewer pitfalls. 2287 2288 [1] If you have third party modules, such as vmware, you 2289 should disable them at this point so they don't crash your 2290 system on reboot. 2291 2292 [3] From the bootblocks, boot -s, and then do 2293 fsck -p 2294 mount -u / 2295 mount -a 2296 cd src 2297 adjkerntz -i # if CMOS is wall time 2298 Also, when doing a major release upgrade, it is required that 2299 you boot into single user mode to do the installworld. 2300 2301 [4] Note: This step is non-optional. Failure to do this step 2302 can result in a significant reduction in the functionality of the 2303 system. Attempting to do it by hand is not recommended and those 2304 that pursue this avenue should read this file carefully, as well 2305 as the archives of freebsd-current and freebsd-hackers mailing lists 2306 for potential gotchas. The -U option is also useful to consider. 2307 See mergemaster(8) for more information. 2308 2309 [5] Usually this step is a noop. However, from time to time 2310 you may need to do this if you get unknown user in the following 2311 step. It never hurts to do it all the time. You may need to 2312 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2313 install) after the buildworld before this step if you last updated 2314 from current before 20130425 or from -stable before 20130430. 2315 2316 [6] This only deletes old files and directories. Old libraries 2317 can be deleted by "make delete-old-libs", but you have to make 2318 sure that no program is using those libraries anymore. 2319 2320 [8] In order to have a kernel that can run the 4.x binaries needed to 2321 do an installworld, you must include the COMPAT_FREEBSD4 option in 2322 your kernel. Failure to do so may leave you with a system that is 2323 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2324 required to run the 5.x binaries on more recent kernels. And so on 2325 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2326 2327 Make sure that you merge any new devices from GENERIC since the 2328 last time you updated your kernel config file. 2329 2330 [9] When checking out sources, you must include the -P flag to have 2331 cvs prune empty directories. 2332 2333 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2334 "?=" instead of the "=" assignment operator, so that buildworld can 2335 override the CPUTYPE if it needs to. 2336 2337 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2338 not on the command line, or in /etc/make.conf. buildworld will 2339 warn if it is improperly defined. 2340FORMAT: 2341 2342This file contains a list, in reverse chronological order, of major 2343breakages in tracking -current. It is not guaranteed to be a complete 2344list of such breakages, and only contains entries since October 10, 2007. 2345If you need to see UPDATING entries from before that date, you will need 2346to fetch an UPDATING file from an older FreeBSD release. 2347 2348Copyright information: 2349 2350Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2351 2352Redistribution, publication, translation and use, with or without 2353modification, in full or in part, in any form or format of this 2354document are permitted without further permission from the author. 2355 2356THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2357IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2358WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2359DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2360INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2361(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2362SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2363HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2364STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2365IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2366POSSIBILITY OF SUCH DAMAGE. 2367 2368Contact Warner Losh if you have any questions about your use of 2369this document. 2370 2371$FreeBSD: releng/10.1/UPDATING 296954 2016-03-16 22:30:56Z glebius $ 2372