UPDATING revision 306230
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 1920160923 p21 FreeBSD-SA-16:26.openssl 20 21 Fix multiple OpenSSL vulnerabilitites. 22 2320160725 p20 FreeBSD-SA-16:25.bspatch 24 FreeBSD-EN-16:09.freebsd-update 25 26 Fix bspatch heap overflow vulnerability. [SA-16:25] 27 28 Fix freebsd-update(8) support of FreeBSD 11.0 release 29 distribution. [EN-16:09] 30 3120160604 p19 FreeBSD-SA-16:24.ntp 32 33 Fix multiple vulnerabilities of ntp. 34 3520160531 p18 FreeBSD-SA-16:20.linux 36 FreeBSD-SA-16:21.43bsd 37 FreeBSD-SA-16:22.libarchive 38 39 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 40 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 41 Fix directory traversal in cpio(1). [SA-16:22] 42 4320160517 p17 FreeBSD-SA-16:18.atkbd 44 FreeBSD-SA-16:19.sendmsg 45 46 Fix buffer overflow in keyboard driver. [SA-16:18] 47 48 Fix incorrect argument handling in sendmsg(2). [SA-16:19] 49 5020160504 p16 FreeBSD-SA-16:17.openssl 51 FreeBSD-EN-16:07.ipi 52 FreeBSD-EN-16:08.zfs 53 54 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 55 56 Fix excessive latency in x86 IPI delivery. [EN-16:07] 57 58 Fix memory leak in ZFS. [EN-16:08] 59 6020160429 p15 FreeBSD-SA-16:16.ntp 61 62 Fix multiple vulnerabilities of ntp. 63 6420160316 p14 FreeBSD-SA-16:14.openssh-xauth 65 FreeBSD-SA-16:15.sysarch 66 FreeBSD-EN-16:04.hyperv 67 FreeBSD-EN-16:05.hv_netvsc 68 69 Fix OpenSSH xauth(1) command injection. [SA-16:14] 70 Fix incorrect argument validation in sysarch(2). [SA-16:15] 71 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04] 72 Fix hv_netvsc(4) incorrect TCP/IP checksums. [EN-16:05] 73 7420160303 p13 FreeBSD-SA-16:12.openssl 75 76 Fix multiple vulnerabilities of OpenSSL. 77 7820160130 p12 FreeBSD-SA-16:11.openssl 79 80 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 81 8220160127 p11 FreeBSD-SA-16:09.ntp 83 FreeBSD-SA-16:10.linux 84 85 Fix multiple vulnerabilities of ntp. [SA-16:09] 86 87 Fix Linux compatibility layer issetugid(2) system call 88 vulnerability. [SA-16:10] 89 9020160114 p10 FreeBSD-SA-16:07.openssh 91 92 Fix OpenSSH client information leak. [SA-16:07] 93 9420160114 p9 FreeBSD-EN-16:01.filemon 95 FreeBSD-EN-16:02.pf 96 FreeBSD-EN-16:03.yplib 97 FreeBSD-SA-16:01.sctp 98 FreeBSD-SA-16:02.ntp 99 FreeBSD-SA-16:03.linux 100 FreeBSD-SA-16:04.linux 101 FreeBSD-SA-16:05.tcp 102 FreeBSD-SA-16:06.bsnmpd 103 104 Fix multiple stability and locking problems in filemon(4). [EN-16:01] 105 Fix pf(4) generating bad TCP checksums. [EN-16:02] 106 Fix infinite loop in YP/NIS client library. [EN-16:03] 107 Fix remote denial of service in SCTP. [SA-16:01] 108 Update NTP to 4.2.8p5. [SA-16:02] 109 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 110 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 111 Fix crash in TCP MD5 signatures. [SA-16:05] 112 Fix insecure default permissions for snmpd.config. [SA-16:06] 113 11420151205 p8 FreeBSD-SA-15:26.openssl 115 116 Fix multiple OpenSSL vulnerabilities. [SA-15:26] 117 11820151104 p7 FreeBSD-SA-15:25.ntp [revised] 119 FreeBSD-EN-15:19.kqueue 120 FreeBSD-EN-15:20.vm 121 122 Fix regression in ntpd(8) lacking support for RAWDCF reference 123 clock in 10.2-RELEASE-p6. [SA-15:25] 124 125 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 126 127 Fix applications exiting due to segmentation violation on a correct 128 memory address. [EN-15:20.vm] 129 13020151026: p6 FreeBSD-SA-15:25.ntp 131 132 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 133 13420151002: p5 FreeBSD-SA-15:24.rpcbind [revised] 135 Revised patch to address a regression that prevents NIS from working. 136 13720150929: p4 FreeBSD-SA-15:24.rpcbind 138 139 Fix rpcbind(8) remote denial of service. [SA-15:24] 140 14120150916: p3 FreeBSD-EN-15:16.pw 142 FreeBSD-EN-15:17.libc 143 FreeBSD-EN-15:18.pkg 144 145 Fix regression in pw(8) when creating numeric users or groups. 146 [EN-15:16] 147 148 Fix libc handling of signals for multi-threaded processes. 149 [EN-15:17] 150 151 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 152 15320150825: p2 FreeBSD-SA-15:22.openssh 154 FreeBSD-EN-15:15.pkg 155 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 156 157 Fix insufficient check of unsupported pkg(7) signature methods. 158 [EN-15:15] 159 16020150818: p1 FreeBSD-SA-15:20.expat 161 FreeBSD-EN-15:11.toolchain 162 FreeBSD-EN-15:12.netstat 163 FreeBSD-EN-15:13.vidcontrol 164 165 Fix multiple integer overflows in expat (libbsdxml) XML parser. 166 [SA-15:20] 167 168 Fix make(1) syntax errors when upgrading from 9.x and earlier. 169 [EN-15:11] 170 171 Fix incorrect netstat(1) data handling on 32-bit systems. 172 [EN-15:12] 173 174 Allow size argument to vidcontrol(1) for syscons(4). [EN-15:13] 175 17620150813: 177 10.2-RELEASE. 178 17920150703: 180 The default Unbound configuration now enables remote control 181 using a local socket. Users who have already enabled the 182 local_unbound service should regenerate their configuration 183 by running "service local_unbound setup" as root. 184 18520150624: 186 An additional fix for the issue described in the 20150614 sendmail 187 entry below has been been committed in revision 284786. 188 18920150615: 190 The fix for the issue described in the 20150614 sendmail entry 191 below has been been committed in revision 284485. The work 192 around described in that entry is no longer needed unless the 193 default setting is overridden by a confDH_PARAMETERS configuration 194 setting of '5' or pointing to a 512 bit DH parameter file. 195 19620150614: 197 The import of openssl to address the FreeBSD-SA-15:10.openssl 198 security advisory includes a change which rejects handshakes 199 with DH parameters below 768 bits. sendmail releases prior 200 to 8.15.2 (not yet released), defaulted to a 512 bit 201 DH parameter setting for client connections. To work around 202 this interoperability, sendmail can be configured to use a 203 2048 bit DH parameter by: 204 205 1. Edit /etc/mail/`hostname`.mc 206 2. If a setting for confDH_PARAMETERS does not exist or 207 exists and is set to a string beginning with '5', 208 replace it with '2'. 209 3. If a setting for confDH_PARAMETERS exists and is set to 210 a file path, create a new file with: 211 openssl dhparam -out /path/to/file 2048 212 4. Rebuild the .cf file: 213 cd /etc/mail/; make; make install 214 5. Restart sendmail: 215 cd /etc/mail/; make restart 216 217 A sendmail patch is coming, at which time this file will be 218 updated. 219 22020150601: 221 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 222 defined in symlink(7); previously symlinks were silently ignored. 223 22420150430: 225 The const qualifier has been removed from iconv(3) to comply with 226 POSIX. The ports tree is aware of this from r384038 onwards. 227 22820141215: 229 At svn r275807, The default linux compat kernel ABI has been adjusted 230 to 2.6.18 in support of the linux-c6 compat ports infrastructure 231 update. If you wish to continue using the linux-f10 compat ports, 232 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 233 encouraged to update their linux-compat packages to linux-c6 during 234 their next update cycle. 235 236 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 237 23820141205: 239 pjdfstest has been integrated into kyua as an opt-in test suite. 240 Please see share/doc/pjdfstest/README for a more details on how to 241 execute it. 242 24320141118: 244 10.1-RELEASE. 245 24620140904: 247 The ofwfb driver, used to provide a graphics console on PowerPC when 248 using vt(4), no longer allows mmap() of all of physical memory. This 249 will prevent Xorg on PowerPC with some ATI graphics cards from 250 initializing properly unless x11-servers/xorg-server is updated to 251 1.12.4_8 or newer. 252 25320140831: 254 The libatf-c and libatf-c++ major versions were downgraded to 0 and 255 1 respectively to match the upstream numbers. They were out of 256 sync because, when they were originally added to FreeBSD, the 257 upstream versions were not respected. These libraries are private 258 and not yet built by default, so renumbering them should be a 259 non-issue. However, unclean source trees will yield broken test 260 programs once the operator executes "make delete-old-libs" after a 261 "make installworld". 262 263 Additionally, the atf-sh binary was made private by moving it into 264 /usr/libexec/. Already-built shell test programs will keep the 265 path to the old binary so they will break after "make delete-old" 266 is run. 267 268 If you are using WITH_TESTS=yes (not the default), wipe the object 269 tree and rebuild from scratch to prevent spurious test failures. 270 This is only needed once: the misnumbered libraries and misplaced 271 binaries have been added to OptionalObsoleteFiles.inc so they will 272 be removed during a clean upgrade. 273 27420140814: 275 The ixgbe tunables now match their sysctl counterparts, for example: 276 hw.ixgbe.enable_aim => hw.ix.enable_aim 277 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 278 27920140801: 280 The NFSv4.1 server committed by r269398 changes the internal 281 function call interfaces used between the NFS and krpc modules. 282 As such, __FreeBSD_version was bumped. 283 28420140729: 285 The default unbound configuration has been modified to address 286 issues with reverse lookups on networks that use private 287 address ranges. If you use the local_unbound service, run 288 "service local_unbound setup" as root to regenerate your 289 configuration, then "service local_unbound reload" to load the 290 new configuration. 291 29220140717: 293 It is no longer necessary to include the dwarf version in your DEBUG 294 options in your kernel config file. The bug that required it to be 295 placed in the config file has bene fixed. DEBUG should now just 296 contain -g. The build system will automatically update things 297 to do the right thing. 298 29920140715: 300 Several ABI breaking changes were merged to CTL and new iSCSI code. 301 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 302 iscsictl need to be rebuilt to work with a new kernel. 303 30420140708: 305 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 306 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 307 which differs from the behaviour controlled by this knob.) 308 30920140608: 310 On i386 and amd64 systems, the onifconsole flag is now set by default 311 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 312 as a login TTY if it is set in the bootloader as an active kernel 313 console. No changes in behavior should result otherwise. To revert to 314 the previous behavior, set ttyu0 to "off" in /etc/ttys. 315 31620140512: 317 Clang and llvm have been upgraded to 3.4.1 release. 318 31920140321: 320 Clang and llvm have been upgraded to 3.4 release. 321 32220140306: 323 If a Makefile in a tests/ directory was auto-generating a Kyuafile 324 instead of providing an explicit one, this would prevent such 325 Makefile from providing its own Kyuafile in the future during 326 NO_CLEAN builds. This has been fixed in the Makefiles but manual 327 intervention is needed to clean an objdir if you use NO_CLEAN: 328 # find /usr/obj -name Kyuafile | xargs rm -f 329 33020140303: 331 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 332 capability mode support. Please note that enabling the feature in 333 kernel is still highly recommended. 334 33520140227: 336 OpenSSH is now built with sandbox support, and will use sandbox as 337 the default privilege separation method. This requires Capsicum 338 capability mode support in kernel. 339 34020140216: 341 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 342 been deprecated and will not be part of FreeBSD 11.0 and later 343 releases. If you use this driver, please consider switching to 344 the nfe(4) driver instead. 345 34620140120: 347 10.0-RELEASE. 348 34920131216: 350 The behavior of gss_pseudo_random() for the krb5 mechanism 351 has changed, for applications requesting a longer random string 352 than produced by the underlying enctype's pseudo-random() function. 353 In particular, the random string produced from a session key of 354 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 355 be different at the 17th octet and later, after this change. 356 The counter used in the PRF+ construction is now encoded as a 357 big-endian integer in accordance with RFC 4402. 358 __FreeBSD_version is bumped to 1000701. 359 36020131108: 361 The WITHOUT_ATF build knob has been removed and its functionality 362 has been subsumed into the more generic WITHOUT_TESTS. If you were 363 using the former to disable the build of the ATF libraries, you 364 should change your settings to use the latter. 365 36620131031: 367 The default version of mtree is nmtree which is obtained from 368 NetBSD. The output is generally the same, but may vary 369 slightly. If you found you need identical output adding 370 "-F freebsd9" to the command line should do the trick. For the 371 time being, the old mtree is available as fmtree. 372 37320131014: 374 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 375 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 376 1.1.4_8 and verify bsdyml not linked in, before running "make 377 delete-old-libs": 378 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 379 or 380 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 381 38220131010: 383 The rc.d/jail script has been updated to support jail(8) 384 configuration file. The "jail_<jname>_*" rc.conf(5) variables 385 for per-jail configuration are automatically converted to 386 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 387 This is transparently backward compatible. See below about some 388 incompatibilities and rc.conf(5) manual page for more details. 389 390 These variables are now deprecated in favor of jail(8) configuration 391 file. One can use "rc.d/jail config <jname>" command to generate 392 a jail(8) configuration file in /var/run/jail.<jname>.conf without 393 running the jail(8) utility. The default pathname of the 394 configuration file is /etc/jail.conf and can be specified by 395 using $jail_conf or $jail_<jname>_conf variables. 396 397 Please note that jail_devfs_ruleset accepts an integer at 398 this moment. Please consider to rewrite the ruleset name 399 with an integer. 400 40120130930: 402 BIND has been removed from the base system. If all you need 403 is a local resolver, simply enable and start the local_unbound 404 service instead. Otherwise, several versions of BIND are 405 available in the ports tree. The dns/bind99 port is one example. 406 407 With this change, nslookup(1) and dig(1) are no longer in the base 408 system. Users should instead use host(1) and drill(1) which are 409 in the base system. Alternatively, nslookup and dig can 410 be obtained by installing the dns/bind-tools port. 411 41220130916: 413 With the addition of unbound(8), a new unbound user is now 414 required during installworld. "mergemaster -p" can be used to 415 add the user prior to installworld, as documented in the handbook. 416 41720130911: 418 OpenSSH is now built with DNSSEC support, and will by default 419 silently trust signed SSHFP records. This can be controlled with 420 the VerifyHostKeyDNS client configuration setting. DNSSEC support 421 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 422 42320130906: 424 The GNU Compiler Collection and C++ standard library (libstdc++) 425 are no longer built by default on platforms where clang is the system 426 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 427 options in src.conf. 428 42920130905: 430 The PROCDESC kernel option is now part of the GENERIC kernel 431 configuration and is required for the rwhod(8) to work. 432 If you are using custom kernel configuration, you should include 433 'options PROCDESC'. 434 43520130905: 436 The API and ABI related to the Capsicum framework was modified 437 in backward incompatible way. The userland libraries and programs 438 have to be recompiled to work with the new kernel. This includes the 439 following libraries and programs, but the whole buildworld is 440 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 441 kdump, procstat, rwho, rwhod, uniq. 442 44320130903: 444 AES-NI intrinsic support has been added to gcc. The AES-NI module 445 has been updated to use this support. A new gcc is required to build 446 the aesni module on both i386 and amd64. 447 44820130821: 449 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 450 Thus "device padlock_rng" and "device rdrand_rng" should be 451 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 452 45320130813: 454 WITH_ICONV has been split into two feature sets. WITH_ICONV now 455 enables just the iconv* functionality and is now on by default. 456 WITH_LIBICONV_COMPAT enables the libiconv api and link time 457 compatability. Set WITHOUT_ICONV to build the old way. 458 If you have been using WITH_ICONV before, you will very likely 459 need to turn on WITH_LIBICONV_COMPAT. 460 46120130806: 462 INVARIANTS option now enables DEBUG for code with OpenSolaris and 463 Illumos origin, including ZFS. If you have INVARIANTS in your 464 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 465 explicitly. 466 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 467 locks if WITNESS option was set. Because that generated a lot of 468 witness(9) reports and all of them were believed to be false 469 positives, this is no longer done. New option OPENSOLARIS_WITNESS 470 can be used to achieve the previous behavior. 471 47220130806: 473 Timer values in IPv6 data structures now use time_uptime instead 474 of time_second. Although this is not a user-visible functional 475 change, userland utilities which directly use them---ndp(8), 476 rtadvd(8), and rtsold(8) in the base system---need to be updated 477 to r253970 or later. 478 47920130802: 480 find -delete can now delete the pathnames given as arguments, 481 instead of only files found below them or if the pathname did 482 not contain any slashes. Formerly, the following error message 483 would result: 484 485 find: -delete: <path>: relative path potentially not safe 486 487 Deleting the pathnames given as arguments can be prevented 488 without error messages using -mindepth 1 or by changing 489 directory and passing "." as argument to find. This works in the 490 old as well as the new version of find. 491 49220130726: 493 Behavior of devfs rules path matching has been changed. 494 Pattern is now always matched against fully qualified devfs 495 path and slash characters must be explicitly matched by 496 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 497 subdirectories must be reviewed. 498 49920130716: 500 The default ARM ABI has changed to the ARM EABI. The old ABI is 501 incompatible with the ARM EABI and all programs and modules will 502 need to be rebuilt to work with a new kernel. 503 504 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 505 506 NOTE: Support for the old ABI will be removed in the future and 507 users are advised to upgrade. 508 50920130709: 510 pkg_install has been disconnected from the build if you really need it 511 you should add WITH_PKGTOOLS in your src.conf(5). 512 51320130709: 514 Most of network statistics structures were changed to be able 515 keep 64-bits counters. Thus all tools, that work with networking 516 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 517 51820130629: 519 Fix targets that run multiple make's to use && rather than ; 520 so that subsequent steps depend on success of previous. 521 522 NOTE: if building 'universe' with -j* on stable/8 or stable/9 523 it would be better to start the build using bmake, to avoid 524 overloading the machine. 525 52620130618: 527 Fix a bug that allowed a tracing process (e.g. gdb) to write 528 to a memory-mapped file in the traced process's address space 529 even if neither the traced process nor the tracing process had 530 write access to that file. 531 53220130615: 533 CVS has been removed from the base system. An exact copy 534 of the code is available from the devel/cvs port. 535 53620130613: 537 Some people report the following error after the switch to bmake: 538 539 make: illegal option -- J 540 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 541 ... 542 *** [buildworld] Error code 2 543 544 this likely due to an old instance of make in 545 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 546 which src/Makefile will use that blindly, if it exists, so if 547 you see the above error: 548 549 rm -rf `make -V MAKEPATH` 550 551 should resolve it. 552 55320130516: 554 Use bmake by default. 555 Whereas before one could choose to build with bmake via 556 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 557 make. The goal is to remove these knobs for 10-RELEASE. 558 559 It is worth noting that bmake (like gmake) treats the command 560 line as the unit of failure, rather than statements within the 561 command line. Thus '(cd some/where && dosomething)' is safer 562 than 'cd some/where; dosomething'. The '()' allows consistent 563 behavior in parallel build. 564 56520130429: 566 Fix a bug that allows NFS clients to issue READDIR on files. 567 56820130426: 569 The WITHOUT_IDEA option has been removed because 570 the IDEA patent expired. 571 57220130426: 573 The sysctl which controls TRIM support under ZFS has been renamed 574 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 575 enabled by default. 576 57720130425: 578 The mergemaster command now uses the default MAKEOBJDIRPREFIX 579 rather than creating it's own in the temporary directory in 580 order allow access to bootstrapped versions of tools such as 581 install and mtree. When upgrading from version of FreeBSD where 582 the install command does not support -l, you will need to 583 install a new mergemaster command if mergemaster -p is required. 584 This can be accomplished with the command (cd src/usr.sbin/mergemaster 585 && make install). 586 58720130404: 588 Legacy ATA stack, disabled and replaced by new CAM-based one since 589 FreeBSD 9.0, completely removed from the sources. Kernel modules 590 atadisk and atapi*, user-level tools atacontrol and burncd are 591 removed. Kernel option `options ATA_CAM` is now permanently enabled 592 and removed. 593 59420130319: 595 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 596 and socketpair(2). Software, in particular Kerberos, may 597 automatically detect and use these during building. The resulting 598 binaries will not work on older kernels. 599 60020130308: 601 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 602 information, see the respective 20130304 entry). 603 60420130304: 605 Recent commits to callout(9) changed the size of struct callout, 606 so the KBI is probably heavily disturbed. Also, some functions 607 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 608 by macros. Every kernel module using it won't load, so rebuild 609 is requested. 610 611 The ctl device has been re-enabled in GENERIC for i386 and amd64, 612 but does not initialize by default (because of the new CTL_DISABLE 613 option) to save memory. To re-enable it, remove the CTL_DISABLE 614 option from the kernel config file or set kern.cam.ctl.disable=0 615 in /boot/loader.conf. 616 61720130301: 618 The ctl device has been disabled in GENERIC for i386 and amd64. 619 This was done due to the extra memory being allocated at system 620 initialisation time by the ctl driver which was only used if 621 a CAM target device was created. This makes a FreeBSD system 622 unusable on 128MB or less of RAM. 623 62420130208: 625 A new compression method (lz4) has been merged to -HEAD. Please 626 refer to zpool-features(7) for more information. 627 628 Please refer to the "ZFS notes" section of this file for information 629 on upgrading boot ZFS pools. 630 63120130129: 632 A BSD-licensed patch(1) variant has been added and is installed 633 as bsdpatch, being the GNU version the default patch. 634 To inverse the logic and use the BSD-licensed one as default, 635 while having the GNU version installed as gnupatch, rebuild 636 and install world with the WITH_BSD_PATCH knob set. 637 63820130121: 639 Due to the use of the new -l option to install(1) during build 640 and install, you must take care not to directly set the INSTALL 641 make variable in your /etc/make.conf, /etc/src.conf, or on the 642 command line. If you wish to use the -C flag for all installs 643 you may be able to add INSTALL+=-C to /etc/make.conf or 644 /etc/src.conf. 645 64620130118: 647 The install(1) option -M has changed meaning and now takes an 648 argument that is a file or path to append logs to. In the 649 unlikely event that -M was the last option on the command line 650 and the command line contained at least two files and a target 651 directory the first file will have logs appended to it. The -M 652 option served little practical purpose in the last decade so its 653 use is expected to be extremely rare. 654 65520121223: 656 After switching to Clang as the default compiler some users of ZFS 657 on i386 systems started to experience stack overflow kernel panics. 658 Please consider using 'options KSTACK_PAGES=4' in such configurations. 659 66020121222: 661 GEOM_LABEL now mangles label names read from file system metadata. 662 Mangling affect labels containing spaces, non-printable characters, 663 '%' or '"'. Device names in /etc/fstab and other places may need to 664 be updated. 665 66620121217: 667 By default, only the 10 most recent kernel dumps will be saved. To 668 restore the previous behaviour (no limit on the number of kernel dumps 669 stored in the dump directory) add the following line to /etc/rc.conf: 670 671 savecore_flags="" 672 67320121201: 674 With the addition of auditdistd(8), a new auditdistd user is now 675 required during installworld. "mergemaster -p" can be used to 676 add the user prior to installworld, as documented in the handbook. 677 67820121117: 679 The sin6_scope_id member variable in struct sockaddr_in6 is now 680 filled by the kernel before passing the structure to the userland via 681 sysctl or routing socket. This means the KAME-specific embedded scope 682 id in sin6_addr.s6_addr[2] is always cleared in userland application. 683 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 684 __FreeBSD_version is bumped to 1000025. 685 68620121105: 687 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 688 This means that the world and kernel will be compiled with clang 689 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 690 and /usr/bin/cpp. To disable this behavior and revert to building 691 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 692 of current may need to bootstrap WITHOUT_CLANG first if the clang 693 build fails (its compatibility window doesn't extend to the 9 stable 694 branch point). 695 69620121102: 697 The IPFIREWALL_FORWARD kernel option has been removed. Its 698 functionality now turned on by default. 699 70020121023: 701 The ZERO_COPY_SOCKET kernel option has been removed and 702 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 703 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 704 mechanism which is not safe and may result in kernel crashes. 705 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 706 driver supports disposeable external page sized mbuf storage. 707 Proper replacements for both zero-copy mechanisms are under 708 consideration and will eventually lead to complete removal 709 of the two kernel options. 710 71120121023: 712 The IPv4 network stack has been converted to network byte 713 order. The following modules need to be recompiled together 714 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 715 pf(4), ipfw(4), ng_ipfw(4), stf(4). 716 71720121022: 718 Support for non-MPSAFE filesystems was removed from VFS. The 719 VFS_VERSION was bumped, all filesystem modules shall be 720 recompiled. 721 72220121018: 723 All the non-MPSAFE filesystems have been disconnected from 724 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 725 portalfs, smbfs, xfs. 726 72720121016: 728 The interface cloning API and ABI has changed. The following 729 modules need to be recompiled together with kernel: 730 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 731 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 732 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 733 73420121015: 735 The sdhci driver was split in two parts: sdhci (generic SD Host 736 Controller logic) and sdhci_pci (actual hardware driver). 737 No kernel config modifications are required, but if you 738 load sdhc as a module you must switch to sdhci_pci instead. 739 74020121014: 741 Import the FUSE kernel and userland support into base system. 742 74320121013: 744 The GNU sort(1) program has been removed since the BSD-licensed 745 sort(1) has been the default for quite some time and no serious 746 problems have been reported. The corresponding WITH_GNU_SORT 747 knob has also gone. 748 74920121006: 750 The pfil(9) API/ABI for AF_INET family has been changed. Packet 751 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 752 with new kernel. 753 75420121001: 755 The net80211(4) ABI has been changed to allow for improved driver 756 PS-POLL and power-save support. All wireless drivers need to be 757 recompiled to work with the new kernel. 758 75920120913: 760 The random(4) support for the VIA hardware random number 761 generator (`PADLOCK') is no longer enabled unconditionally. 762 Add the padlock_rng device in the custom kernel config if 763 needed. The GENERIC kernels on i386 and amd64 do include the 764 device, so the change only affects the custom kernel 765 configurations. 766 76720120908: 768 The pf(4) packet filter ABI has been changed. pfctl(8) and 769 snmp_pf module need to be recompiled to work with new kernel. 770 77120120828: 772 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 773 to -HEAD. Pools that have empty_bpobj in active state can not be 774 imported read-write with ZFS implementations that do not support 775 this feature. For more information read the zpool-features(5) 776 manual page. 777 77820120727: 779 The sparc64 ZFS loader has been changed to no longer try to auto- 780 detect ZFS providers based on diskN aliases but now requires these 781 to be explicitly listed in the OFW boot-device environment variable. 782 78320120712: 784 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 785 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 786 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 787 78820120712: 789 The following sysctls and tunables have been renamed for consistency 790 with other variables: 791 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 792 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 793 79420120628: 795 The sort utility has been replaced with BSD sort. For now, GNU sort 796 is also available as "gnusort" or the default can be set back to 797 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 798 installed as "bsdsort". 799 80020120611: 801 A new version of ZFS (pool version 5000) has been merged to -HEAD. 802 Starting with this version the old system of ZFS pool versioning 803 is superseded by "feature flags". This concept enables forward 804 compatibility against certain future changes in functionality of ZFS 805 pools. The first read-only compatible "feature flag" for ZFS pools 806 is named "com.delphix:async_destroy". For more information 807 read the new zpool-features(5) manual page. 808 Please refer to the "ZFS notes" section of this file for information 809 on upgrading boot ZFS pools. 810 81120120417: 812 The malloc(3) implementation embedded in libc now uses sources imported 813 as contrib/jemalloc. The most disruptive API change is to 814 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 815 delete it prior to installworld, and optionally re-create it using the 816 new format after rebooting. See malloc.conf(5) for details 817 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 818 NAMESPACE section). 819 82020120328: 821 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 822 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 823 now spelled mips. This is to aid compatibility with third-party 824 software that expects this naming scheme in uname(3). Little-endian 825 settings are unchanged. If you are updating a big-endian mips64 machine 826 from before this change, you may need to set MACHINE_ARCH=mips64 in 827 your environment before the new build system will recognize your machine. 828 82920120306: 830 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 831 platforms. 832 83320120229: 834 Now unix domain sockets behave "as expected" on nullfs(5). Previously 835 nullfs(5) did not pass through all behaviours to the underlying layer, 836 as a result if we bound to a socket on the lower layer we could connect 837 only to the lower path; if we bound to the upper layer we could connect 838 only to the upper path. The new behavior is one can connect to both the 839 lower and the upper paths regardless what layer path one binds to. 840 84120120211: 842 The getifaddrs upgrade path broken with 20111215 has been restored. 843 If you have upgraded in between 20111215 and 20120209 you need to 844 recompile libc again with your kernel. You still need to recompile 845 world to be able to configure CARP but this restriction already 846 comes from 20111215. 847 84820120114: 849 The set_rcvar() function has been removed from /etc/rc.subr. All 850 base and ports rc.d scripts have been updated, so if you have a 851 port installed with a script in /usr/local/etc/rc.d you can either 852 hand-edit the rcvar= line, or reinstall the port. 853 854 An easy way to handle the mass-update of /etc/rc.d: 855 rm /etc/rc.d/* && mergemaster -i 856 85720120109: 858 panic(9) now stops other CPUs in the SMP systems, disables interrupts 859 on the current CPU and prevents other threads from running. 860 This behavior can be reverted using the kern.stop_scheduler_on_panic 861 tunable/sysctl. 862 The new behavior can be incompatible with kern.sync_on_panic. 863 86420111215: 865 The carp(4) facility has been changed significantly. Configuration 866 of the CARP protocol via ifconfig(8) has changed, as well as format 867 of CARP events submitted to devd(8) has changed. See manual pages 868 for more information. The arpbalance feature of carp(4) is currently 869 not supported anymore. 870 871 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 872 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 873 need to be recompiled. 874 87520111122: 876 The acpi_wmi(4) status device /dev/wmistat has been renamed to 877 /dev/wmistat0. 878 87920111108: 880 The option VFS_ALLOW_NONMPSAFE option has been added in order to 881 explicitely support non-MPSAFE filesystems. 882 It is on by default for all supported platform at this present 883 time. 884 88520111101: 886 The broken amd(4) driver has been replaced with esp(4) in the amd64, 887 i386 and pc98 GENERIC kernel configuration files. 888 88920110930: 890 sysinstall has been removed 891 89220110923: 893 The stable/9 branch created in subversion. This corresponds to the 894 RELENG_9 branch in CVS. 895 89620110913: 897 This commit modifies vfs_register() so that it uses a hash 898 calculation to set vfc_typenum, which is enabled by default. 899 The first time a system is booted after this change, the 900 vfc_typenum values will change for all file systems. The 901 main effect of this is a change to the NFS server file handles 902 for file systems that use vfc_typenum in their fsid, such as ZFS. 903 It will, however, prevent vfc_typenum from changing when file 904 systems are loaded in a different order for subsequent reboots. 905 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 906 until you are ready to remount all NFS clients after a reboot. 907 90820110828: 909 Bump the shared library version numbers for libraries that 910 do not use symbol versioning, have changed the ABI compared 911 to stable/8 and which shared library version was not bumped. 912 Done as part of 9.0-RELEASE cycle. 913 91420110815: 915 During the merge of Capsicum features, the fget(9) KPI was modified. 916 This may require the rebuilding of out-of-tree device drivers -- 917 issues have been reported specifically with the nVidia device driver. 918 __FreeBSD_version is bumped to 900041. 919 920 Also, there is a period between 20110811 and 20110814 where the 921 special devices /dev/{stdin,stdout,stderr} did not work correctly. 922 Building world from a kernel during that window may not work. 923 92420110628: 925 The packet filter (pf) code has been updated to OpenBSD 4.5. 926 You need to update userland tools to be in sync with kernel. 927 This update breaks backward compatibility with earlier pfsync(4) 928 versions. Care must be taken when updating redundant firewall setups. 929 93020110608: 931 The following sysctls and tunables are retired on x86 platforms: 932 machdep.hlt_cpus 933 machdep.hlt_logical_cpus 934 The following sysctl is retired: 935 machdep.hyperthreading_allowed 936 The sysctls were supposed to provide a way to dynamically offline and 937 online selected CPUs on x86 platforms, but the implementation has not 938 been reliable especially with SCHED_ULE scheduler. 939 machdep.hyperthreading_allowed tunable is still available to ignore 940 hyperthreading CPUs at OS level. 941 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 942 where X is an APIC ID of a CPU. Be advised, though, that disabling 943 CPUs in non-uniform fashion will result in non-uniform topology and 944 may lead to sub-optimal system performance with SCHED_ULE, which is 945 a default scheduler. 946 94720110607: 948 cpumask_t type is retired and cpuset_t is used in order to describe 949 a mask of CPUs. 950 95120110531: 952 Changes to ifconfig(8) for dynamic address family detection mandate 953 that you are running a kernel of 20110525 or later. Make sure to 954 follow the update procedure to boot a new kernel before installing 955 world. 956 95720110513: 958 Support for sun4v architecture is officially dropped 959 96020110503: 961 Several KPI breaking changes have been committed to the mii(4) layer, 962 the PHY drivers and consequently some Ethernet drivers using mii(4). 963 This means that miibus.ko and the modules of the affected Ethernet 964 drivers need to be recompiled. 965 966 Note to kernel developers: Given that the OUI bit reversion problem 967 was fixed as part of these changes all mii(4) commits related to OUIs, 968 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 969 handling, no longer can be merged verbatim to stable/8 and previous 970 branches. 971 97220110430: 973 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 974 into their kernel configurations along with 'device pci'. 975 97620110427: 977 The default NFS client is now the new NFS client, so fstype "newnfs" 978 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 979 Although mounts via fstype "nfs" will usually work without userland 980 changes, it is recommended that the mount(8) and mount_nfs(8) 981 commands be rebuilt from sources and that a link to mount_nfs called 982 mount_oldnfs be created. The new client is compiled into the 983 kernel with "options NFSCL" and this is needed for diskless root 984 file systems. The GENERIC kernel configs have been changed to use 985 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 986 To use the regular/old client, you can "mount -t oldnfs ...". For 987 a diskless root file system, you must also include a line like: 988 989 vfs.root.mountfrom="oldnfs:" 990 991 in the boot/loader.conf on the root fs on the NFS server to make 992 a diskless root fs use the old client. 993 99420110424: 995 The GENERIC kernels for all architectures now default to the new 996 CAM-based ATA stack. It means that all legacy ATA drivers were 997 removed and replaced by respective CAM drivers. If you are using 998 ATA device names in /etc/fstab or other places, make sure to update 999 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 1000 where 'Y's are the sequential numbers starting from zero for each type 1001 in order of detection, unless configured otherwise with tunables, 1002 see cam(4)). There will be symbolic links created in /dev/ to map 1003 old adX devices to the respective adaY. They should provide basic 1004 compatibility for file systems mounting in most cases, but they do 1005 not support old user-level APIs and do not have respective providers 1006 in GEOM. Consider using updated management tools with new device names. 1007 1008 It is possible to load devices ahci, ata, siis and mvs as modules, 1009 but option ATA_CAM should remain in kernel configuration to make ata 1010 module work as CAM driver supporting legacy ATA controllers. Device ata 1011 still can be used in modular fashion (atacore + ...). Modules atadisk 1012 and atapi* are not used and won't affect operation in ATA_CAM mode. 1013 Note that to use CAM-based ATA kernel should include CAM devices 1014 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1015 them are parts of the cam module. 1016 1017 ataraid(4) functionality is now supported by the RAID GEOM class. 1018 To use it you can load geom_raid kernel module and use graid(8) tool 1019 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1020 1021 No kernel config options or code have been removed, so if a problem 1022 arises, please report it and optionally revert to the old ATA stack. 1023 In order to do it you can remove from the kernel config: 1024 options ATA_CAM 1025 device ahci 1026 device mvs 1027 device siis 1028 , and instead add back: 1029 device atadisk # ATA disk drives 1030 device ataraid # ATA RAID drives 1031 device atapicd # ATAPI CDROM drives 1032 device atapifd # ATAPI floppy drives 1033 device atapist # ATAPI tape drives 1034 103520110423: 1036 The default NFS server has been changed to the new server, which 1037 was referred to as the experimental server. If you need to switch 1038 back to the old NFS server, you must now put the "-o" option on 1039 both the mountd and nfsd commands. This can be done using the 1040 mountd_flags and nfs_server_flags rc.conf variables until an 1041 update to the rc scripts is committed, which is coming soon. 1042 104320110418: 1044 The GNU Objective-C runtime library (libobjc), and other Objective-C 1045 related components have been removed from the base system. If you 1046 require an Objective-C library, please use one of the available ports. 1047 104820110331: 1049 ath(4) has been split into bus- and device- modules. if_ath contains 1050 the HAL, the TX rate control and the network device code. if_ath_pci 1051 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1052 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1053 in order to use ath on everything else. 1054 1055 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1056 need to load if_ath and if_ath_pci for ath(4) operation. 1057 105820110314: 1059 As part of the replacement of sysinstall, the process of building 1060 release media has changed significantly. For details, please re-read 1061 release(7), which has been updated to reflect the new build process. 1062 106320110218: 1064 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1065 is the last available version under GPLv2. It brings a number of new 1066 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1067 4.1 and SSE 4.2), better support for powerpc64, a number of new 1068 directives, and lots of other small improvements. See the ChangeLog 1069 file in contrib/binutils for the full details. 1070 107120110218: 1072 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1073 compliant, and will now use half of hash for authentication. 1074 This will break interoperability with all stacks (including all 1075 actual FreeBSD versions) who implement 1076 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1077 authentication). 1078 The only workaround with such peers is to use another HMAC 1079 algorithm for IPsec ("phase 2") authentication. 1080 108120110207: 1082 Remove the uio_yield prototype and symbol. This function has 1083 been misnamed since it was introduced and should not be 1084 globally exposed with this name. The equivalent functionality 1085 is now available using kern_yield(curthread->td_user_pri). 1086 The function remains undocumented. 1087 108820110112: 1089 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1090 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1091 for scalar sysctls is defined but disabled. Code that needs 1092 UQUAD to pass the type checking that must compile on older 1093 systems where the define is not present can check against 1094 __FreeBSD_version >= 900030. 1095 1096 The system dialog(1) has been replaced with a new version previously 1097 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1098 with the previous version, but the libdialog associated with it has 1099 a largely incompatible API. As such, the original version of libdialog 1100 will be kept temporarily as libodialog, until its base system consumers 1101 are replaced or updated. Bump __FreeBSD_version to 900030. 1102 110320110103: 1104 If you are trying to run make universe on a -stable system, and you get 1105 the following warning: 1106 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1107 unknown. config(8) likely too old." 1108 or something similar to it, then you must upgrade your -stable system 1109 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1110 stable/8) or build the config from the latest stable/8 branch and 1111 install it on your system. 1112 1113 Prior to this date, building a current universe on 8-stable system from 1114 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1115 error in the first kernel build phase. A new config on those old 1116 systems will fix that problem for older versions of -current. 1117 111820101228: 1119 The TCP stack has been modified to allow Khelp modules to interact with 1120 it via helper hook points and store per-connection data in the TCP 1121 control block. Bump __FreeBSD_version to 900029. User space tools that 1122 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1123 be recompiled. 1124 112520101114: 1126 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1127 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1128 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1129 to take advantage of it instead of using custom implementations. This 1130 means that these drivers now no longer unconditionally advertise 1131 support for flow control but only do so if flow control is a selected 1132 media option. This was implemented in the generic support that way in 1133 order to allow flow control to be switched on and off via ifconfig(8) 1134 with the PHY specific default to typically off in order to protect 1135 from unwanted effects. Consequently, if you used flow control with 1136 one of the above mentioned drivers you now need to explicitly enable 1137 it, for example via: 1138 ifconfig bge0 media auto mediaopt flowcontrol 1139 1140 Along with the above mentioned changes generic support for setting 1141 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1142 e1000phy(4) as well as ip1000phy(4) have been converted to take 1143 advantage of it. This means that these drivers now no longer take the 1144 link0 parameter for selecting master mode but the master media option 1145 has to be used instead, for example like in the following: 1146 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1147 1148 Selection of master mode now is also available with all other PHY 1149 drivers supporting 1000baseT. 1150 115120101111: 1152 The TCP stack has received a significant update to add support for 1153 modularised congestion control and generally improve the clarity of 1154 congestion control decisions. Bump __FreeBSD_version to 900025. User 1155 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1156 sockstat) need to be recompiled. 1157 115820101002: 1159 The man(1) utility has been replaced by a new version that no longer 1160 uses /etc/manpath.config. Please consult man.conf(5) for how to 1161 migrate local entries to the new format. 1162 116320100928: 1164 The copyright strings printed by login(1) and sshd(8) at the time of a 1165 new connection have been removed to follow other operating systems and 1166 upstream sshd. 1167 116820100915: 1169 A workaround for a fixed ld bug has been removed in kernel code, 1170 so make sure that your system ld is built from sources after 1171 revision 210245 from 2010-07-19 (r211583 if building head kernel 1172 on stable/8, r211584 for stable/7; both from 2010-08-21). 1173 A symptom of incorrect ld version is different addresses for 1174 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1175 117620100913: 1177 The $ipv6_prefer variable in rc.conf(5) has been split into 1178 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1179 1180 The $ip6addrctl_policy is a variable to choose a pre-defined 1181 address selection policy set by ip6addrctl(8). A value 1182 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1183 default is "AUTO". 1184 1185 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1186 flag (see an entry of 20090926) is set on an interface with no 1187 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1188 security reason. If you want IPv6 link-local address on all 1189 interfaces by default, set this to "YES". 1190 1191 The old ipv6_prefer="YES" is equivalent to 1192 ipv6_activate_all_interfaces="YES" and 1193 ip6addrctl_policy="ipv6_prefer". 1194 119520100913: 1196 DTrace has grown support for userland tracing. Due to this, DTrace is 1197 now i386 and amd64 only. 1198 dtruss(1) is now installed by default on those systems and a new 1199 kernel module is needed for userland tracing: fasttrap. 1200 No changes to your kernel config file are necessary to enable 1201 userland tracing, but you might consider adding 'STRIP=' and 1202 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1203 to have informative userland stack traces in DTrace (ustack). 1204 120520100725: 1206 The acpi_aiboost(4) driver has been removed in favor of the new 1207 aibs(4) driver. You should update your kernel configuration file. 1208 120920100722: 1210 BSD grep has been imported to the base system and it is built by 1211 default. It is completely BSD licensed, highly GNU-compatible, uses 1212 less memory than its GNU counterpart and has a small codebase. 1213 However, it is slower than its GNU counterpart, which is mostly 1214 noticeable for larger searches, for smaller ones it is measurable 1215 but not significant. The reason is complex, the most important factor 1216 is that we lack a modern and efficient regex library and GNU 1217 overcomes this by optimizing the searches internally. Future work 1218 on improving the regex performance is planned, for the meantime, 1219 users that need better performance, can build GNU grep instead by 1220 setting the WITH_GNU_GREP knob. 1221 122220100713: 1223 Due to the import of powerpc64 support, all existing powerpc kernel 1224 configuration files must be updated with a machine directive like this: 1225 machine powerpc powerpc 1226 1227 In addition, an updated config(8) is required to build powerpc kernels 1228 after this change. 1229 123020100713: 1231 A new version of ZFS (version 15) has been merged to -HEAD. 1232 This version uses a python library for the following subcommands: 1233 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1234 For full functionality of these commands the following port must 1235 be installed: sysutils/py-zfs 1236 123720100429: 1238 'vm_page's are now hashed by physical address to an array of mutexes. 1239 Currently this is only used to serialize access to hold_count. Over 1240 time the page queue mutex will be peeled away. This changes the size 1241 of pmap on every architecture. And requires all callers of vm_page_hold 1242 and vm_page_unhold to be updated. 1243 124420100402: 1245 WITH_CTF can now be specified in src.conf (not recommended, there 1246 are some problems with static executables), make.conf (would also 1247 affect ports which do not use GNU make and do not override the 1248 compile targets) or in the kernel config (via "makeoptions 1249 WITH_CTF=yes"). 1250 When WITH_CTF was specified there before this was silently ignored, 1251 so make sure that WITH_CTF is not used in places which could lead 1252 to unwanted behavior. 1253 125420100311: 1255 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1256 to allow 32-bit compatibility on non-x86 platforms. All kernel 1257 configurations on amd64 and ia64 platforms using these options must 1258 be modified accordingly. 1259 126020100113: 1261 The utmp user accounting database has been replaced with utmpx, 1262 the user accounting interface standardized by POSIX. 1263 Unfortunately the semantics of utmp and utmpx don't match, 1264 making it practically impossible to support both interfaces. 1265 The user accounting database is used by tools like finger(1), 1266 last(1), talk(1), w(1) and ac(8). 1267 1268 All applications in the base system use utmpx. This means only 1269 local binaries (e.g. from the ports tree) may still use these 1270 utmp database files. These applications must be rebuilt to make 1271 use of utmpx. 1272 1273 After the system has been upgraded, it is safe to remove the old 1274 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1275 assuming their contents is of no importance anymore. Old wtmp 1276 databases can only be used by last(1) and ac(8) after they have 1277 been converted to the new format using wtmpcvt(1). 1278 127920100108: 1280 Introduce the kernel thread "deadlock resolver" (which can be enabled 1281 via the DEADLKRES option, see NOTES for more details) and the 1282 sleepq_type() function for sleepqueues. 1283 128420091202: 1285 The rc.firewall and rc.firewall6 were unified, and 1286 rc.firewall6 and rc.d/ip6fw were removed. 1287 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1288 variables are obsoleted. Instead, the following new rc 1289 variables are added to rc.d/ipfw: 1290 1291 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1292 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1293 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1294 1295 The meanings correspond to the relevant IPv4 variables. 1296 129720091125: 1298 8.0-RELEASE. 1299 130020091113: 1301 The default terminal emulation for syscons(4) has been changed 1302 from cons25 to xterm on all platforms except pc98. This means 1303 that the /etc/ttys file needs to be updated to ensure correct 1304 operation of applications on the console. 1305 1306 The terminal emulation style can be toggled per window by using 1307 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1308 options can be used to change the compile-time default back to 1309 cons25. 1310 1311 To prevent graphical artifacts, make sure the TERM environment 1312 variable is set to match the terminal emulation that is being 1313 performed by syscons(4). 1314 131520091109: 1316 The layout of the structure ieee80211req_scan_result has changed. 1317 Applications that require wireless scan results (e.g. ifconfig(8)) 1318 from net80211 need to be recompiled. 1319 1320 Applications such as wpa_supplicant(8) may require a full world 1321 build without using NO_CLEAN in order to get synchronized with the 1322 new structure. 1323 132420091025: 1325 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1326 There's one kernel module for each firmware. Adding "device iwnfw" 1327 to the kernel configuration file means including all three firmware 1328 images inside the kernel. If you want to include just the one for 1329 your wireless card, use the devices iwn4965fw, iwn5000fw or 1330 iwn5150fw. 1331 133220090926: 1333 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1334 into rc.d/netif. The changes are the following: 1335 1336 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1337 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1338 Note that both variables need the "inet6" keyword at the head. 1339 1340 Do not set $ipv6_network_interfaces manually if you do not 1341 understand what you are doing. It is not needed in most cases. 1342 1343 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1344 they are obsolete. 1345 1346 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1347 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1348 1349 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1350 all configured interfaces have "inet6 accept_rtadv" in the 1351 $ifconfig_IF_ipv6. These are for backward compatibility. 1352 1353 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1354 functionality of interfaces with no corresponding 1355 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1356 and the default address selection policy of ip6addrctl(8) 1357 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1358 Note that if you want to configure IPv6 functionality on the 1359 disabled interfaces after boot, first you need to clear the flag by 1360 using ifconfig(8) like: 1361 1362 ifconfig em0 inet6 -ifdisabled 1363 1364 If YES, the default address selection policy is set as 1365 IPv6-preferred. 1366 1367 The default value of $ipv6_prefer is NO. 1368 1369 4. If your system need to receive Router Advertisement messages, 1370 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1371 scripts automatically invoke rtsol(8) when the interface becomes 1372 UP. The Router Advertisement messages are used for SLAAC 1373 (State-Less Address AutoConfiguration). 1374 137520090922: 1376 802.11s D3.03 support was committed. This is incompatible with the 1377 previous code, which was based on D3.0. 1378 137920090912: 1380 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1381 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1382 control whether accepting Router Advertisement messages or not. 1383 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1384 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1385 The ifconfig(8) utility now supports these flags. 1386 138720090910: 1388 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1389 mount(8) and -a option for df(1) to see them. 1390 139120090825: 1392 The old tunable hw.bus.devctl_disable has been superseded by 1393 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1394 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1395 is 1000. 1396 139720090813: 1398 Remove the option STOP_NMI. The default action is now to use NMI only 1399 for KDB via the newly introduced function stop_cpus_hard() and 1400 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1401 140220090803: 1403 The stable/8 branch created in subversion. This corresponds to the 1404 RELENG_8 branch in CVS. 1405 140620090719: 1407 Bump the shared library version numbers for all libraries that do not 1408 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1409 __FreeBSD_version to 800105. 1410 141120090714: 1412 Due to changes in the implementation of virtual network stack support, 1413 all network-related kernel modules must be recompiled. As this change 1414 breaks the ABI, bump __FreeBSD_version to 800104. 1415 141620090713: 1417 The TOE interface to the TCP syncache has been modified to remove 1418 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1419 The cxgb driver is the only TOE consumer affected by this change, and 1420 needs to be recompiled along with the kernel. As this change breaks 1421 the ABI, bump __FreeBSD_version to 800103. 1422 142320090712: 1424 Padding has been added to struct tcpcb, sackhint and tcpstat in 1425 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1426 maintaining the ABI. However, this change breaks the ABI, so bump 1427 __FreeBSD_version to 800102. User space tools that rely on the size of 1428 any of these structs (e.g. sockstat) need to be recompiled. 1429 143020090630: 1431 The NFS_LEGACYRPC option has been removed along with the old kernel 1432 RPC implementation that this option selected. Kernel configurations 1433 may need to be adjusted. 1434 143520090629: 1436 The network interface device nodes at /dev/net/<interface> have been 1437 removed. All ioctl operations can be performed the normal way using 1438 routing sockets. The kqueue functionality can generally be replaced 1439 with routing sockets. 1440 144120090628: 1442 The documentation from the FreeBSD Documentation Project (Handbook, 1443 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1444 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1445 144620090624: 1447 The ABI of various structures related to the SYSV IPC API have been 1448 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1449 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1450 800100. 1451 145220090622: 1453 Layout of struct vnet has changed as routing related variables were 1454 moved to their own Vimage module. Modules need to be recompiled. Bump 1455 __FreeBSD_version to 800099. 1456 145720090619: 1458 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1459 respectively. As long as no more than 16 groups per process are used, 1460 no changes should be visible. When more than 16 groups are used, old 1461 binaries may fail if they call getgroups() or getgrouplist() with 1462 statically sized storage. Recompiling will work around this, but 1463 applications should be modified to use dynamically allocated storage 1464 for group arrays as POSIX.1-2008 does not cap an implementation's 1465 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1466 1467 NFS and portalfs mounts may also be affected as the list of groups is 1468 truncated to 16. Users of NFS who use more than 16 groups, should 1469 take care that negative group permissions are not used on the exported 1470 file systems as they will not be reliable unless a GSSAPI based 1471 authentication method is used. 1472 147320090616: 1474 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1475 option compiles in the support for adaptive spinning for lockmgrs 1476 which want to enable it. The lockinit() function now accepts the flag 1477 LK_ADAPTIVE in order to make the lock object subject to adaptive 1478 spinning when both held in write and read mode. 1479 148020090613: 1481 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1482 changed. User applications that use this ioctl need to be rebuilt. 1483 148420090611: 1485 The layout of struct thread has changed. Kernel and modules need to 1486 be rebuilt. 1487 148820090608: 1489 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1490 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1491 149220090602: 1493 window(1) has been removed from the base system. It can now be 1494 installed from ports. The port is called misc/window. 1495 149620090601: 1497 The way we are storing and accessing `routing table' entries has 1498 changed. Programs reading the FIB, like netstat, need to be 1499 re-compiled. 1500 150120090601: 1502 A new netisr implementation has been added for FreeBSD 8. Network 1503 file system modules, such as igmp, ipdivert, and others, should be 1504 rebuilt. 1505 Bump __FreeBSD_version to 800096. 1506 150720090530: 1508 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1509 more valid. 1510 151120090530: 1512 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1513 Bump __FreeBSD_version to 800094. 1514 151520090529: 1516 Add mnt_xflag field to 'struct mount'. File system modules need to be 1517 rebuilt. 1518 Bump __FreeBSD_version to 800093. 1519 152020090528: 1521 The compiling option ADAPTIVE_SX has been retired while it has been 1522 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1523 The KPI for sx_init_flags() changes as accepting flags: 1524 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1525 been introduced in order to handle the reversed logic. 1526 Bump __FreeBSD_version to 800092. 1527 152820090527: 1529 Add support for hierarchical jails. Remove global securelevel. 1530 Bump __FreeBSD_version to 800091. 1531 153220090523: 1533 The layout of struct vnet_net has changed, therefore modules 1534 need to be rebuilt. 1535 Bump __FreeBSD_version to 800090. 1536 153720090523: 1538 The newly imported zic(8) produces a new format in the output. Please 1539 run tzsetup(8) to install the newly created data to /etc/localtime. 1540 154120090520: 1542 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1543 hw.usb.* and is now consistent again with previous releases. 1544 154520090520: 1546 802.11 monitor mode support was revised and driver api's were changed. 1547 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1548 of DLT_IEEE802_11. No user-visible data structures were changed but 1549 applications that use DLT_IEEE802_11 may require changes. 1550 Bump __FreeBSD_version to 800088. 1551 155220090430: 1553 The layout of the following structs has changed: sysctl_oid, 1554 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1555 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1556 panics may be experienced. World rebuild is required for 1557 correctly checking networking state from userland. 1558 Bump __FreeBSD_version to 800085. 1559 156020090429: 1561 MLDv2 and Source-Specific Multicast (SSM) have been merged 1562 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1563 The implementation of SSM within FreeBSD's IPv6 stack closely 1564 follows the IPv4 implementation. 1565 1566 For kernel developers: 1567 1568 * The most important changes are that the ip6_output() and 1569 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1570 and this lock has been downgraded to a non-recursive mutex. 1571 1572 * As with the changes to the IPv4 stack to support SSM, filtering 1573 of inbound multicast traffic must now be performed by transport 1574 protocols within the IPv6 stack. This does not apply to TCP and 1575 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1576 1577 * The KPIs used by IPv6 multicast are similar to those used by 1578 the IPv4 stack, with the following differences: 1579 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1580 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1581 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1582 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1583 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1584 for MLDv1 have an additional 'timer' argument which is used to 1585 jitter the initial membership report for the solicited-node 1586 multicast membership on-link. 1587 * This is not strictly needed for MLDv2, which already jitters 1588 its report transmissions. However, the 'timer' argument is 1589 preserved in case MLDv1 is active on the interface. 1590 1591 * The KAME linked-list based IPv6 membership implementation has 1592 been refactored to use a vector similar to that used by the IPv4 1593 stack. 1594 Code which maintains a list of its own multicast memberships 1595 internally, e.g. carp, has been updated to reflect the new 1596 semantics. 1597 1598 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1599 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1600 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1601 implementation constraint which needs to be addressed in HEAD. 1602 1603 For application developers: 1604 1605 * The changes are broadly similar to those made for the IPv4 1606 stack. 1607 1608 * The use of IPv4 and IPv6 multicast socket options on the same 1609 socket, using mapped addresses, HAS NOT been tested or supported. 1610 1611 * There are a number of issues with the implementation of various 1612 IPv6 multicast APIs which need to be resolved in the API surface 1613 before the implementation is fully compatible with KAME userland 1614 use, and these are mostly to do with interface index treatment. 1615 1616 * The literature available discusses the use of either the delta / ASM 1617 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1618 using setsourcefilter(3)/getsourcefilter(3). For more information 1619 please refer to RFC 3768, 'Socket Interface Extensions for 1620 Multicast Source Filters'. 1621 1622 * Applications which use the published RFC 3678 APIs should be fine. 1623 1624 For systems administrators: 1625 1626 * The mtest(8) utility has been refactored to support IPv6, in 1627 addition to IPv4. Interface addresses are no longer accepted 1628 as arguments, their names must be used instead. The utility 1629 will map the interface name to its first IPv4 address as 1630 returned by getifaddrs(3). 1631 1632 * The ifmcstat(8) utility has also been updated to print the MLDv2 1633 endpoint state and source filter lists via sysctl(3). 1634 1635 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1636 loopback of IPv6 multicast datagrams by default; it defaults to 1 1637 to preserve the existing behaviour. Disabling multicast loopback is 1638 recommended for optimal system performance. 1639 1640 * The IPv6 MROUTING code has been changed to examine this sysctl 1641 instead of attempting to perform a group lookup before looping 1642 back forwarded datagrams. 1643 1644 Bump __FreeBSD_version to 800084. 1645 164620090422: 1647 Implement low-level Bluetooth HCI API. 1648 Bump __FreeBSD_version to 800083. 1649 165020090419: 1651 The layout of struct malloc_type, used by modules to register new 1652 memory allocation types, has changed. Most modules will need to 1653 be rebuilt or panics may be experienced. 1654 Bump __FreeBSD_version to 800081. 1655 165620090415: 1657 Anticipate overflowing inp_flags - add inp_flags2. 1658 This changes most offsets in inpcb, so checking v4 connection 1659 state will require a world rebuild. 1660 Bump __FreeBSD_version to 800080. 1661 166220090415: 1663 Add an llentry to struct route and struct route_in6. Modules 1664 embedding a struct route will need to be recompiled. 1665 Bump __FreeBSD_version to 800079. 1666 166720090414: 1668 The size of rt_metrics_lite and by extension rtentry has changed. 1669 Networking administration apps will need to be recompiled. 1670 The route command now supports show as an alias for get, weighting 1671 of routes, sticky and nostick flags to alter the behavior of stateful 1672 load balancing. 1673 Bump __FreeBSD_version to 800078. 1674 167520090408: 1676 Do not use Giant for kbdmux(4) locking. This is wrong and 1677 apparently causing more problems than it solves. This will 1678 re-open the issue where interrupt handlers may race with 1679 kbdmux(4) in polling mode. Typical symptoms include (but 1680 not limited to) duplicated and/or missing characters when 1681 low level console functions (such as gets) are used while 1682 interrupts are enabled (for example geli password prompt, 1683 mountroot prompt etc.). Disabling kbdmux(4) may help. 1684 168520090407: 1686 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1687 kernel modules referencing any of the above need to be recompiled. 1688 Bump __FreeBSD_version to 800075. 1689 169020090320: 1691 GEOM_PART has become the default partition slicer for storage devices, 1692 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1693 introduces some changes: 1694 1695 MSDOS/EBR: the devices created from MSDOS extended partition entries 1696 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1697 to devices with offset-based names. fstabs may need to be modified. 1698 1699 BSD: the "geometry does not match label" warning is harmless in most 1700 cases but it points to problems in file system misalignment with 1701 disk geometry. The "c" partition is now implicit, covers the whole 1702 top-level drive and cannot be (mis)used by users. 1703 1704 General: Kernel dumps are now not allowed to be written to devices 1705 whose partition types indicate they are meant to be used for file 1706 systems (or, in case of MSDOS partitions, as something else than 1707 the "386BSD" type). 1708 1709 Most of these changes date approximately from 200812. 1710 171120090319: 1712 The uscanner(4) driver has been removed from the kernel. This follows 1713 Linux removing theirs in 2.6 and making libusb the default interface 1714 (supported by sane). 1715 171620090319: 1717 The multicast forwarding code has been cleaned up. netstat(1) 1718 only relies on KVM now for printing bandwidth upcall meters. 1719 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1720 ip6_mroute_mod respectively. The config(5) options for statically 1721 compiling this code remain the same, i.e. 'options MROUTING'. 1722 172320090315: 1724 Support for the IFF_NEEDSGIANT network interface flag has been 1725 removed, which means that non-MPSAFE network device drivers are no 1726 longer supported. In particular, if_ar, if_sr, and network device 1727 drivers from the old (legacy) USB stack can no longer be built or 1728 used. 1729 173020090313: 1731 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1732 a bunch of new language catalog files have also been added. 1733 This means that some common libc messages are now localized and 1734 they depend on the LC_MESSAGES environmental variable. 1735 173620090313: 1737 The k8temp(4) driver has been renamed to amdtemp(4) since 1738 support for Family 10 and Family 11 CPU families was added. 1739 174020090309: 1741 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1742 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1743 1744 For kernel developers, the most important changes are that the 1745 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1746 and this lock has been downgraded to a non-recursive mutex. 1747 1748 Transport protocols (UDP, Raw IP) are now responsible for filtering 1749 inbound multicast traffic according to group membership and source 1750 filters. The imo_multicast_filter() KPI exists for this purpose. 1751 Transports which do not use multicast (SCTP, TCP) already reject 1752 multicast by default. Forwarding and receive performance may improve 1753 as a mutex acquisition is no longer needed in the ip_input() 1754 low-level input path. in_addmulti() and in_delmulti() are shimmed 1755 to new KPIs which exist to support SSM in-kernel. 1756 1757 For application developers, it is recommended that loopback of 1758 multicast datagrams be disabled for best performance, as this 1759 will still cause the lock to be taken for each looped-back 1760 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1761 be tuned to 0 to disable loopback by default; it defaults to 1 1762 to preserve the existing behaviour. 1763 1764 For systems administrators, to obtain best performance with 1765 multicast reception and multiple groups, it is always recommended 1766 that a card with a suitably precise hash filter is used. Hash 1767 collisions will still result in the lock being taken within the 1768 transport protocol input path to check group membership. 1769 1770 If deploying FreeBSD in an environment with IGMP snooping switches, 1771 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1772 enabled; this forces 224.0.0.0/24 group membership to be announced 1773 via IGMP. 1774 1775 The size of 'struct igmpstat' has changed; netstat needs to be 1776 recompiled to reflect this. 1777 Bump __FreeBSD_version to 800070. 1778 177920090309: 1780 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1781 updated to use it. This requires a buildworld/installworld in order to 1782 update the library and dependencies (usbconfig, etc). Its advisable to 1783 rebuild all ports which uses libusb. More specific directions are given 1784 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1785 libusb are no longer required and can be removed. 1786 178720090302: 1788 A workaround is committed to allow the creation of System V shared 1789 memory segment of size > 2 GB on the 64-bit architectures. 1790 Due to a limitation of the existing ABI, the shm_segsz member 1791 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1792 wrong for large segments. Note that limits must be explicitly 1793 raised to allow such segments to be created. 1794 179520090301: 1796 The layout of struct ifnet has changed, requiring a rebuild of all 1797 network device driver modules. 1798 179920090227: 1800 The /dev handling for the new USB stack has changed, a 1801 buildworld/installworld is required for libusb20. 1802 180320090223: 1804 The new USB2 stack has now been permanently moved in and all kernel and 1805 module names reverted to their previous values (eg, usb, ehci, ohci, 1806 ums, ...). The old usb stack can be compiled in by prefixing the name 1807 with the letter 'o', the old usb modules have been removed. 1808 Updating entry 20090216 for xorg and 20090215 for libmap may still 1809 apply. 1810 181120090217: 1812 The rc.conf(5) option if_up_delay has been renamed to 1813 defaultroute_delay to better reflect its purpose. If you have 1814 customized this setting in /etc/rc.conf you need to update it to 1815 use the new name. 1816 181720090216: 1818 xorg 7.4 wants to configure its input devices via hald which does not 1819 yet work with USB2. If the keyboard/mouse does not work in xorg then 1820 add 1821 Option "AllowEmptyInput" "off" 1822 to your ServerLayout section. This will cause X to use the configured 1823 kbd and mouse sections from your xorg.conf. 1824 182520090215: 1826 The GENERIC kernels for all architectures now default to the new USB2 1827 stack. No kernel config options or code have been removed so if a 1828 problem arises please report it and optionally revert to the old USB 1829 stack. If you are loading USB kernel modules or have a custom kernel 1830 that includes GENERIC then ensure that usb names are also changed over, 1831 eg uftdi -> usb2_serial_ftdi. 1832 1833 Older programs linked against the ports libusb 0.1 need to be 1834 redirected to the new stack's libusb20. /etc/libmap.conf can 1835 be used for this: 1836 # Map old usb library to new one for usb2 stack 1837 libusb-0.1.so.8 libusb20.so.1 1838 183920090209: 1840 All USB ethernet devices now attach as interfaces under the name ueN 1841 (eg. ue0). This is to provide a predictable name as vendors often 1842 change usb chipsets in a product without notice. 1843 184420090203: 1845 The ichsmb(4) driver has been changed to require SMBus slave 1846 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1847 All of the other SMBus controller drivers require left-justified 1848 slave addresses, so this change makes all the drivers provide the 1849 same interface. 1850 185120090201: 1852 INET6 statistics (struct ip6stat) was updated. 1853 netstat(1) needs to be recompiled. 1854 185520090119: 1856 NTFS has been removed from GENERIC kernel on amd64 to match 1857 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1858 will load ntfs.ko module automatically when NTFS support is 1859 actually needed, unless ntfs.ko is not installed or security 1860 level prohibits loading kernel modules. If either is the case, 1861 "options NTFS" has to be added into kernel config. 1862 186320090115: 1864 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1865 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1866 800061. User space tools that rely on the size of struct tcpcb in 1867 tcp_var.h (e.g. sockstat) need to be recompiled. 1868 186920081225: 1870 ng_tty(4) module updated to match the new TTY subsystem. 1871 Due to API change, user-level applications must be updated. 1872 New API support added to mpd5 CVS and expected to be present 1873 in next mpd5.3 release. 1874 187520081219: 1876 With __FreeBSD_version 800060 the makefs tool is part of 1877 the base system (it was a port). 1878 187920081216: 1880 The afdata and ifnet locks have been changed from mutexes to 1881 rwlocks, network modules will need to be re-compiled. 1882 188320081214: 1884 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1885 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1886 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1887 architecture and 40 bytes on 64-bit architecture. The userland 1888 applications "arp" and "ndp" have been updated accordingly. 1889 The output from "netstat -r" shows only routing entries and 1890 none of the L2 information. 1891 189220081130: 1893 __FreeBSD_version 800057 marks the switchover from the 1894 binary ath hal to source code. Users must add the line: 1895 1896 options AH_SUPPORT_AR5416 1897 1898 to their kernel config files when specifying: 1899 1900 device ath_hal 1901 1902 The ath_hal module no longer exists; the code is now compiled 1903 together with the driver in the ath module. It is now 1904 possible to tailor chip support (i.e. reduce the set of chips 1905 and thereby the code size); consult ath_hal(4) for details. 1906 190720081121: 1908 __FreeBSD_version 800054 adds memory barriers to 1909 <machine/atomic.h>, new interfaces to ifnet to facilitate 1910 multiple hardware transmit queues for cards that support 1911 them, and a lock-less ring-buffer implementation to 1912 enable drivers to more efficiently manage queueing of 1913 packets. 1914 191520081117: 1916 A new version of ZFS (version 13) has been merged to -HEAD. 1917 This version has zpool attribute "listsnapshots" off by 1918 default, which means "zfs list" does not show snapshots, 1919 and is the same as Solaris behavior. 1920 192120081028: 1922 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1923 192420081009: 1925 The uhci, ohci, ehci and slhci USB Host controller drivers have 1926 been put into separate modules. If you load the usb module 1927 separately through loader.conf you will need to load the 1928 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1929 controller add the following to loader.conf: 1930 1931 uhci_load="YES" 1932 ehci_load="YES" 1933 193420081009: 1935 The ABI used by the PMC toolset has changed. Please keep 1936 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1937 sync. 1938 193920081009: 1940 atapci kernel module now includes only generic PCI ATA 1941 driver. AHCI driver moved to ataahci kernel module. 1942 All vendor-specific code moved into separate kernel modules: 1943 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1944 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1945 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1946 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1947 194820080820: 1949 The TTY subsystem of the kernel has been replaced by a new 1950 implementation, which provides better scalability and an 1951 improved driver model. Most common drivers have been migrated to 1952 the new TTY subsystem, while others have not. The following 1953 drivers have not yet been ported to the new TTY layer: 1954 1955 PCI/ISA: 1956 cy, digi, rc, rp, sio 1957 1958 USB: 1959 ubser, ucycom 1960 1961 Line disciplines: 1962 ng_h4, ng_tty, ppp, sl, snp 1963 1964 Adding these drivers to your kernel configuration file shall 1965 cause compilation to fail. 1966 196720080818: 1968 ntpd has been upgraded to 4.2.4p5. 1969 197020080801: 1971 OpenSSH has been upgraded to 5.1p1. 1972 1973 For many years, FreeBSD's version of OpenSSH preferred DSA 1974 over RSA for host and user authentication keys. With this 1975 upgrade, we've switched to the vendor's default of RSA over 1976 DSA. This may cause upgraded clients to warn about unknown 1977 host keys even for previously known hosts. Users should 1978 follow the usual procedure for verifying host keys before 1979 accepting the RSA key. 1980 1981 This can be circumvented by setting the "HostKeyAlgorithms" 1982 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1983 command line. 1984 1985 Please note that the sequence of keys offered for 1986 authentication has been changed as well. You may want to 1987 specify IdentityFile in a different order to revert this 1988 behavior. 1989 199020080713: 1991 The sio(4) driver has been removed from the i386 and amd64 1992 kernel configuration files. This means uart(4) is now the 1993 default serial port driver on those platforms as well. 1994 1995 To prevent collisions with the sio(4) driver, the uart(4) driver 1996 uses different names for its device nodes. This means the 1997 onboard serial port will now most likely be called "ttyu0" 1998 instead of "ttyd0". You may need to reconfigure applications to 1999 use the new device names. 2000 2001 When using the serial port as a boot console, be sure to update 2002 /boot/device.hints and /etc/ttys before booting the new kernel. 2003 If you forget to do so, you can still manually specify the hints 2004 at the loader prompt: 2005 2006 set hint.uart.0.at="isa" 2007 set hint.uart.0.port="0x3F8" 2008 set hint.uart.0.flags="0x10" 2009 set hint.uart.0.irq="4" 2010 boot -s 2011 201220080609: 2013 The gpt(8) utility has been removed. Use gpart(8) to partition 2014 disks instead. 2015 201620080603: 2017 The version that Linuxulator emulates was changed from 2.4.2 2018 to 2.6.16. If you experience any problems with Linux binaries 2019 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2020 if it fixes the problem contact emulation mailing list. 2021 202220080525: 2023 ISDN4BSD (I4B) was removed from the src tree. You may need to 2024 update a your kernel configuration and remove relevant entries. 2025 202620080509: 2027 I have checked in code to support multiple routing tables. 2028 See the man pages setfib(1) and setfib(2). 2029 This is a hopefully backwards compatible version, 2030 but to make use of it you need to compile your kernel 2031 with options ROUTETABLES=2 (or more up to 16). 2032 203320080420: 2034 The 802.11 wireless support was redone to enable multi-bss 2035 operation on devices that are capable. The underlying device 2036 is no longer used directly but instead wlanX devices are 2037 cloned with ifconfig. This requires changes to rc.conf files. 2038 For example, change: 2039 ifconfig_ath0="WPA DHCP" 2040 to 2041 wlans_ath0=wlan0 2042 ifconfig_wlan0="WPA DHCP" 2043 see rc.conf(5) for more details. In addition, mergemaster of 2044 /etc/rc.d is highly recommended. Simultaneous update of userland 2045 and kernel wouldn't hurt either. 2046 2047 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2048 modules were merged into the base wlan module. All references 2049 to these modules (e.g. in kernel config files) must be removed. 2050 205120080408: 2052 psm(4) has gained write(2) support in native operation level. 2053 Arbitrary commands can be written to /dev/psm%d and status can 2054 be read back from it. Therefore, an application is responsible 2055 for status validation and error recovery. It is a no-op in 2056 other operation levels. 2057 205820080312: 2059 Support for KSE threading has been removed from the kernel. To 2060 run legacy applications linked against KSE libmap.conf may 2061 be used. The following libmap.conf may be used to ensure 2062 compatibility with any prior release: 2063 2064 libpthread.so.1 libthr.so.1 2065 libpthread.so.2 libthr.so.2 2066 libkse.so.3 libthr.so.3 2067 206820080301: 2069 The layout of struct vmspace has changed. This affects libkvm 2070 and any executables that link against libkvm and use the 2071 kvm_getprocs() function. In particular, but not exclusively, 2072 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2073 The effects are minimal, but it's advisable to upgrade world 2074 nonetheless. 2075 207620080229: 2077 The latest em driver no longer has support in it for the 2078 82575 adapter, this is now moved to the igb driver. The 2079 split was done to make new features that are incompatible 2080 with older hardware easier to do. 2081 208220080220: 2083 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2084 likewise the kernel option is now GEOM_LINUX_LVM. 2085 208620080211: 2087 The default NFS mount mode has changed from UDP to TCP for 2088 increased reliability. If you rely on (insecurely) NFS 2089 mounting across a firewall you may need to update your 2090 firewall rules. 2091 209220080208: 2093 Belatedly note the addition of m_collapse for compacting 2094 mbuf chains. 2095 209620080126: 2097 The fts(3) structures have been changed to use adequate 2098 integer types for their members and so to be able to cope 2099 with huge file trees. The old fts(3) ABI is preserved 2100 through symbol versioning in libc, so third-party binaries 2101 using fts(3) should still work, although they will not take 2102 advantage of the extended types. At the same time, some 2103 third-party software might fail to build after this change 2104 due to unportable assumptions made in its source code about 2105 fts(3) structure members. Such software should be fixed 2106 by its vendor or, in the worst case, in the ports tree. 2107 FreeBSD_version 800015 marks this change for the unlikely 2108 case that a portable fix is impossible. 2109 211020080123: 2111 To upgrade to -current after this date, you must be running 2112 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2113 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2114 211520071128: 2116 The ADAPTIVE_GIANT kernel option has been retired because its 2117 functionality is the default now. 2118 211920071118: 2120 The AT keyboard emulation of sunkbd(4) has been turned on 2121 by default. In order to make the special symbols of the Sun 2122 keyboards driven by sunkbd(4) work under X these now have 2123 to be configured the same way as Sun USB keyboards driven 2124 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2125 2126 Option "XkbLayout" "us" 2127 Option "XkbRules" "xorg" 2128 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2129 213020071024: 2131 It has been decided that it is desirable to provide ABI 2132 backwards compatibility to the FreeBSD 4/5/6 versions of the 2133 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2134 broken with the introduction of PCI domain support (see the 2135 20070930 entry). Unfortunately, this required the ABI of 2136 PCIOCGETCONF to be broken again in order to be able to 2137 provide backwards compatibility to the old version of that 2138 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2139 again. As for prominent ports this affects neither pciutils 2140 nor xorg-server this time, the hal port needs to be rebuilt 2141 however. 2142 214320071020: 2144 The misnamed kthread_create() and friends have been renamed 2145 to kproc_create() etc. Many of the callers already 2146 used kproc_start().. 2147 I will return kthread_create() and friends in a while 2148 with implementations that actually create threads, not procs. 2149 Renaming corresponds with version 800002. 2150 215120071010: 2152 RELENG_7 branched. 2153 2154COMMON ITEMS: 2155 2156 General Notes 2157 ------------- 2158 Avoid using make -j when upgrading. While generally safe, there are 2159 sometimes problems using -j to upgrade. If your upgrade fails with 2160 -j, please try again without -j. From time to time in the past there 2161 have been problems using -j with buildworld and/or installworld. This 2162 is especially true when upgrading between "distant" versions (eg one 2163 that cross a major release boundary or several minor releases, or when 2164 several months have passed on the -current branch). 2165 2166 Sometimes, obscure build problems are the result of environment 2167 poisoning. This can happen because the make utility reads its 2168 environment when searching for values for global variables. To run 2169 your build attempts in an "environmental clean room", prefix all make 2170 commands with 'env -i '. See the env(1) manual page for more details. 2171 2172 When upgrading from one major version to another it is generally best 2173 to upgrade to the latest code in the currently installed branch first, 2174 then do an upgrade to the new branch. This is the best-tested upgrade 2175 path, and has the highest probability of being successful. Please try 2176 this approach before reporting problems with a major version upgrade. 2177 2178 When upgrading a live system, having a root shell around before 2179 installing anything can help undo problems. Not having a root shell 2180 around can lead to problems if pam has changed too much from your 2181 starting point to allow continued authentication after the upgrade. 2182 2183 ZFS notes 2184 --------- 2185 When upgrading the boot ZFS pool to a new version, always follow 2186 these two steps: 2187 2188 1.) recompile and reinstall the ZFS boot loader and boot block 2189 (this is part of "make buildworld" and "make installworld") 2190 2191 2.) update the ZFS boot block on your boot drive 2192 2193 The following example updates the ZFS boot block on the first 2194 partition (freebsd-boot) of a GPT partitioned drive ad0: 2195 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2196 2197 Non-boot pools do not need these updates. 2198 2199 To build a kernel 2200 ----------------- 2201 If you are updating from a prior version of FreeBSD (even one just 2202 a few days old), you should follow this procedure. It is the most 2203 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2204 2205 make kernel-toolchain 2206 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2207 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2208 2209 To test a kernel once 2210 --------------------- 2211 If you just want to boot a kernel once (because you are not sure 2212 if it works, or if you want to boot a known bad kernel to provide 2213 debugging information) run 2214 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2215 nextboot -k testkernel 2216 2217 To just build a kernel when you know that it won't mess you up 2218 -------------------------------------------------------------- 2219 This assumes you are already running a CURRENT system. Replace 2220 ${arch} with the architecture of your machine (e.g. "i386", 2221 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2222 2223 cd src/sys/${arch}/conf 2224 config KERNEL_NAME_HERE 2225 cd ../compile/KERNEL_NAME_HERE 2226 make depend 2227 make 2228 make install 2229 2230 If this fails, go to the "To build a kernel" section. 2231 2232 To rebuild everything and install it on the current system. 2233 ----------------------------------------------------------- 2234 # Note: sometimes if you are running current you gotta do more than 2235 # is listed here if you are upgrading from a really old current. 2236 2237 <make sure you have good level 0 dumps> 2238 make buildworld 2239 make kernel KERNCONF=YOUR_KERNEL_HERE 2240 [1] 2241 <reboot in single user> [3] 2242 mergemaster -p [5] 2243 make installworld 2244 mergemaster -i [4] 2245 make delete-old [6] 2246 <reboot> 2247 2248 To cross-install current onto a separate partition 2249 -------------------------------------------------- 2250 # In this approach we use a separate partition to hold 2251 # current's root, 'usr', and 'var' directories. A partition 2252 # holding "/", "/usr" and "/var" should be about 2GB in 2253 # size. 2254 2255 <make sure you have good level 0 dumps> 2256 <boot into -stable> 2257 make buildworld 2258 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2259 <maybe newfs current's root partition> 2260 <mount current's root partition on directory ${CURRENT_ROOT}> 2261 make installworld DESTDIR=${CURRENT_ROOT} 2262 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2263 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2264 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2265 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2266 <reboot into current> 2267 <do a "native" rebuild/install as described in the previous section> 2268 <maybe install compatibility libraries from ports/misc/compat*> 2269 <reboot> 2270 2271 2272 To upgrade in-place from stable to current 2273 ---------------------------------------------- 2274 <make sure you have good level 0 dumps> 2275 make buildworld [9] 2276 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2277 [1] 2278 <reboot in single user> [3] 2279 mergemaster -p [5] 2280 make installworld 2281 mergemaster -i [4] 2282 make delete-old [6] 2283 <reboot> 2284 2285 Make sure that you've read the UPDATING file to understand the 2286 tweaks to various things you need. At this point in the life 2287 cycle of current, things change often and you are on your own 2288 to cope. The defaults can also change, so please read ALL of 2289 the UPDATING entries. 2290 2291 Also, if you are tracking -current, you must be subscribed to 2292 freebsd-current@freebsd.org. Make sure that before you update 2293 your sources that you have read and understood all the recent 2294 messages there. If in doubt, please track -stable which has 2295 much fewer pitfalls. 2296 2297 [1] If you have third party modules, such as vmware, you 2298 should disable them at this point so they don't crash your 2299 system on reboot. 2300 2301 [3] From the bootblocks, boot -s, and then do 2302 fsck -p 2303 mount -u / 2304 mount -a 2305 cd src 2306 adjkerntz -i # if CMOS is wall time 2307 Also, when doing a major release upgrade, it is required that 2308 you boot into single user mode to do the installworld. 2309 2310 [4] Note: This step is non-optional. Failure to do this step 2311 can result in a significant reduction in the functionality of the 2312 system. Attempting to do it by hand is not recommended and those 2313 that pursue this avenue should read this file carefully, as well 2314 as the archives of freebsd-current and freebsd-hackers mailing lists 2315 for potential gotchas. The -U option is also useful to consider. 2316 See mergemaster(8) for more information. 2317 2318 [5] Usually this step is a noop. However, from time to time 2319 you may need to do this if you get unknown user in the following 2320 step. It never hurts to do it all the time. You may need to 2321 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2322 install) after the buildworld before this step if you last updated 2323 from current before 20130425 or from -stable before 20130430. 2324 2325 [6] This only deletes old files and directories. Old libraries 2326 can be deleted by "make delete-old-libs", but you have to make 2327 sure that no program is using those libraries anymore. 2328 2329 [8] In order to have a kernel that can run the 4.x binaries needed to 2330 do an installworld, you must include the COMPAT_FREEBSD4 option in 2331 your kernel. Failure to do so may leave you with a system that is 2332 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2333 required to run the 5.x binaries on more recent kernels. And so on 2334 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2335 2336 Make sure that you merge any new devices from GENERIC since the 2337 last time you updated your kernel config file. 2338 2339 [9] When checking out sources, you must include the -P flag to have 2340 cvs prune empty directories. 2341 2342 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2343 "?=" instead of the "=" assignment operator, so that buildworld can 2344 override the CPUTYPE if it needs to. 2345 2346 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2347 not on the command line, or in /etc/make.conf. buildworld will 2348 warn if it is improperly defined. 2349FORMAT: 2350 2351This file contains a list, in reverse chronological order, of major 2352breakages in tracking -current. It is not guaranteed to be a complete 2353list of such breakages, and only contains entries since October 10, 2007. 2354If you need to see UPDATING entries from before that date, you will need 2355to fetch an UPDATING file from an older FreeBSD release. 2356 2357Copyright information: 2358 2359Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2360 2361Redistribution, publication, translation and use, with or without 2362modification, in full or in part, in any form or format of this 2363document are permitted without further permission from the author. 2364 2365THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2366IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2367WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2368DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2369INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2370(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2371SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2372HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2373STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2374IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2375POSSIBILITY OF SUCH DAMAGE. 2376 2377Contact Warner Losh if you have any questions about your use of 2378this document. 2379 2380$FreeBSD: releng/10.2/UPDATING 306230 2016-09-23 07:48:34Z delphij $ 2381