UPDATING revision 286901
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 1920150818: p1 FreeBSD-SA-15:20.expat 20 FreeBSD-EN-15:11.toolchain 21 FreeBSD-EN-15:12.netstat 22 FreeBSD-EN-15:13.vidcontrol 23 24 Fix multiple integer overflows in expat (libbsdxml) XML parser. 25 [SA-15:20] 26 27 Fix make(1) syntax errors when upgrading from 9.x and earlier. 28 [EN-15:11] 29 30 Fix incorrect netstat(1) data handling on 32-bit systems. 31 [EN-15:12] 32 33 Allow size argument to vidcontrol(1) for syscons(4). [EN-15:13] 34 3520150813: 36 10.2-RELEASE. 37 3820150703: 39 The default Unbound configuration now enables remote control 40 using a local socket. Users who have already enabled the 41 local_unbound service should regenerate their configuration 42 by running "service local_unbound setup" as root. 43 4420150624: 45 An additional fix for the issue described in the 20150614 sendmail 46 entry below has been been committed in revision 284786. 47 4820150615: 49 The fix for the issue described in the 20150614 sendmail entry 50 below has been been committed in revision 284485. The work 51 around described in that entry is no longer needed unless the 52 default setting is overridden by a confDH_PARAMETERS configuration 53 setting of '5' or pointing to a 512 bit DH parameter file. 54 5520150614: 56 The import of openssl to address the FreeBSD-SA-15:10.openssl 57 security advisory includes a change which rejects handshakes 58 with DH parameters below 768 bits. sendmail releases prior 59 to 8.15.2 (not yet released), defaulted to a 512 bit 60 DH parameter setting for client connections. To work around 61 this interoperability, sendmail can be configured to use a 62 2048 bit DH parameter by: 63 64 1. Edit /etc/mail/`hostname`.mc 65 2. If a setting for confDH_PARAMETERS does not exist or 66 exists and is set to a string beginning with '5', 67 replace it with '2'. 68 3. If a setting for confDH_PARAMETERS exists and is set to 69 a file path, create a new file with: 70 openssl dhparam -out /path/to/file 2048 71 4. Rebuild the .cf file: 72 cd /etc/mail/; make; make install 73 5. Restart sendmail: 74 cd /etc/mail/; make restart 75 76 A sendmail patch is coming, at which time this file will be 77 updated. 78 7920150601: 80 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 81 defined in symlink(7); previously symlinks were silently ignored. 82 8320150430: 84 The const qualifier has been removed from iconv(3) to comply with 85 POSIX. The ports tree is aware of this from r384038 onwards. 86 8720141215: 88 At svn r275807, The default linux compat kernel ABI has been adjusted 89 to 2.6.18 in support of the linux-c6 compat ports infrastructure 90 update. If you wish to continue using the linux-f10 compat ports, 91 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 92 encouraged to update their linux-compat packages to linux-c6 during 93 their next update cycle. 94 95 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 96 9720141205: 98 pjdfstest has been integrated into kyua as an opt-in test suite. 99 Please see share/doc/pjdfstest/README for a more details on how to 100 execute it. 101 10220141118: 103 10.1-RELEASE. 104 10520140904: 106 The ofwfb driver, used to provide a graphics console on PowerPC when 107 using vt(4), no longer allows mmap() of all of physical memory. This 108 will prevent Xorg on PowerPC with some ATI graphics cards from 109 initializing properly unless x11-servers/xorg-server is updated to 110 1.12.4_8 or newer. 111 11220140831: 113 The libatf-c and libatf-c++ major versions were downgraded to 0 and 114 1 respectively to match the upstream numbers. They were out of 115 sync because, when they were originally added to FreeBSD, the 116 upstream versions were not respected. These libraries are private 117 and not yet built by default, so renumbering them should be a 118 non-issue. However, unclean source trees will yield broken test 119 programs once the operator executes "make delete-old-libs" after a 120 "make installworld". 121 122 Additionally, the atf-sh binary was made private by moving it into 123 /usr/libexec/. Already-built shell test programs will keep the 124 path to the old binary so they will break after "make delete-old" 125 is run. 126 127 If you are using WITH_TESTS=yes (not the default), wipe the object 128 tree and rebuild from scratch to prevent spurious test failures. 129 This is only needed once: the misnumbered libraries and misplaced 130 binaries have been added to OptionalObsoleteFiles.inc so they will 131 be removed during a clean upgrade. 132 13320140814: 134 The ixgbe tunables now match their sysctl counterparts, for example: 135 hw.ixgbe.enable_aim => hw.ix.enable_aim 136 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 137 13820140801: 139 The NFSv4.1 server committed by r269398 changes the internal 140 function call interfaces used between the NFS and krpc modules. 141 As such, __FreeBSD_version was bumped. 142 14320140729: 144 The default unbound configuration has been modified to address 145 issues with reverse lookups on networks that use private 146 address ranges. If you use the local_unbound service, run 147 "service local_unbound setup" as root to regenerate your 148 configuration, then "service local_unbound reload" to load the 149 new configuration. 150 15120140717: 152 It is no longer necessary to include the dwarf version in your DEBUG 153 options in your kernel config file. The bug that required it to be 154 placed in the config file has bene fixed. DEBUG should now just 155 contain -g. The build system will automatically update things 156 to do the right thing. 157 15820140715: 159 Several ABI breaking changes were merged to CTL and new iSCSI code. 160 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 161 iscsictl need to be rebuilt to work with a new kernel. 162 16320140708: 164 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 165 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 166 which differs from the behaviour controlled by this knob.) 167 16820140608: 169 On i386 and amd64 systems, the onifconsole flag is now set by default 170 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 171 as a login TTY if it is set in the bootloader as an active kernel 172 console. No changes in behavior should result otherwise. To revert to 173 the previous behavior, set ttyu0 to "off" in /etc/ttys. 174 17520140512: 176 Clang and llvm have been upgraded to 3.4.1 release. 177 17820140321: 179 Clang and llvm have been upgraded to 3.4 release. 180 18120140306: 182 If a Makefile in a tests/ directory was auto-generating a Kyuafile 183 instead of providing an explicit one, this would prevent such 184 Makefile from providing its own Kyuafile in the future during 185 NO_CLEAN builds. This has been fixed in the Makefiles but manual 186 intervention is needed to clean an objdir if you use NO_CLEAN: 187 # find /usr/obj -name Kyuafile | xargs rm -f 188 18920140303: 190 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 191 capability mode support. Please note that enabling the feature in 192 kernel is still highly recommended. 193 19420140227: 195 OpenSSH is now built with sandbox support, and will use sandbox as 196 the default privilege separation method. This requires Capsicum 197 capability mode support in kernel. 198 19920140216: 200 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 201 been deprecated and will not be part of FreeBSD 11.0 and later 202 releases. If you use this driver, please consider switching to 203 the nfe(4) driver instead. 204 20520140120: 206 10.0-RELEASE. 207 20820131216: 209 The behavior of gss_pseudo_random() for the krb5 mechanism 210 has changed, for applications requesting a longer random string 211 than produced by the underlying enctype's pseudo-random() function. 212 In particular, the random string produced from a session key of 213 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 214 be different at the 17th octet and later, after this change. 215 The counter used in the PRF+ construction is now encoded as a 216 big-endian integer in accordance with RFC 4402. 217 __FreeBSD_version is bumped to 1000701. 218 21920131108: 220 The WITHOUT_ATF build knob has been removed and its functionality 221 has been subsumed into the more generic WITHOUT_TESTS. If you were 222 using the former to disable the build of the ATF libraries, you 223 should change your settings to use the latter. 224 22520131031: 226 The default version of mtree is nmtree which is obtained from 227 NetBSD. The output is generally the same, but may vary 228 slightly. If you found you need identical output adding 229 "-F freebsd9" to the command line should do the trick. For the 230 time being, the old mtree is available as fmtree. 231 23220131014: 233 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 234 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 235 1.1.4_8 and verify bsdyml not linked in, before running "make 236 delete-old-libs": 237 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 238 or 239 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 240 24120131010: 242 The rc.d/jail script has been updated to support jail(8) 243 configuration file. The "jail_<jname>_*" rc.conf(5) variables 244 for per-jail configuration are automatically converted to 245 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 246 This is transparently backward compatible. See below about some 247 incompatibilities and rc.conf(5) manual page for more details. 248 249 These variables are now deprecated in favor of jail(8) configuration 250 file. One can use "rc.d/jail config <jname>" command to generate 251 a jail(8) configuration file in /var/run/jail.<jname>.conf without 252 running the jail(8) utility. The default pathname of the 253 configuration file is /etc/jail.conf and can be specified by 254 using $jail_conf or $jail_<jname>_conf variables. 255 256 Please note that jail_devfs_ruleset accepts an integer at 257 this moment. Please consider to rewrite the ruleset name 258 with an integer. 259 26020130930: 261 BIND has been removed from the base system. If all you need 262 is a local resolver, simply enable and start the local_unbound 263 service instead. Otherwise, several versions of BIND are 264 available in the ports tree. The dns/bind99 port is one example. 265 266 With this change, nslookup(1) and dig(1) are no longer in the base 267 system. Users should instead use host(1) and drill(1) which are 268 in the base system. Alternatively, nslookup and dig can 269 be obtained by installing the dns/bind-tools port. 270 27120130916: 272 With the addition of unbound(8), a new unbound user is now 273 required during installworld. "mergemaster -p" can be used to 274 add the user prior to installworld, as documented in the handbook. 275 27620130911: 277 OpenSSH is now built with DNSSEC support, and will by default 278 silently trust signed SSHFP records. This can be controlled with 279 the VerifyHostKeyDNS client configuration setting. DNSSEC support 280 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 281 28220130906: 283 The GNU Compiler Collection and C++ standard library (libstdc++) 284 are no longer built by default on platforms where clang is the system 285 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 286 options in src.conf. 287 28820130905: 289 The PROCDESC kernel option is now part of the GENERIC kernel 290 configuration and is required for the rwhod(8) to work. 291 If you are using custom kernel configuration, you should include 292 'options PROCDESC'. 293 29420130905: 295 The API and ABI related to the Capsicum framework was modified 296 in backward incompatible way. The userland libraries and programs 297 have to be recompiled to work with the new kernel. This includes the 298 following libraries and programs, but the whole buildworld is 299 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 300 kdump, procstat, rwho, rwhod, uniq. 301 30220130903: 303 AES-NI intrinsic support has been added to gcc. The AES-NI module 304 has been updated to use this support. A new gcc is required to build 305 the aesni module on both i386 and amd64. 306 30720130821: 308 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 309 Thus "device padlock_rng" and "device rdrand_rng" should be 310 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 311 31220130813: 313 WITH_ICONV has been split into two feature sets. WITH_ICONV now 314 enables just the iconv* functionality and is now on by default. 315 WITH_LIBICONV_COMPAT enables the libiconv api and link time 316 compatability. Set WITHOUT_ICONV to build the old way. 317 If you have been using WITH_ICONV before, you will very likely 318 need to turn on WITH_LIBICONV_COMPAT. 319 32020130806: 321 INVARIANTS option now enables DEBUG for code with OpenSolaris and 322 Illumos origin, including ZFS. If you have INVARIANTS in your 323 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 324 explicitly. 325 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 326 locks if WITNESS option was set. Because that generated a lot of 327 witness(9) reports and all of them were believed to be false 328 positives, this is no longer done. New option OPENSOLARIS_WITNESS 329 can be used to achieve the previous behavior. 330 33120130806: 332 Timer values in IPv6 data structures now use time_uptime instead 333 of time_second. Although this is not a user-visible functional 334 change, userland utilities which directly use them---ndp(8), 335 rtadvd(8), and rtsold(8) in the base system---need to be updated 336 to r253970 or later. 337 33820130802: 339 find -delete can now delete the pathnames given as arguments, 340 instead of only files found below them or if the pathname did 341 not contain any slashes. Formerly, the following error message 342 would result: 343 344 find: -delete: <path>: relative path potentially not safe 345 346 Deleting the pathnames given as arguments can be prevented 347 without error messages using -mindepth 1 or by changing 348 directory and passing "." as argument to find. This works in the 349 old as well as the new version of find. 350 35120130726: 352 Behavior of devfs rules path matching has been changed. 353 Pattern is now always matched against fully qualified devfs 354 path and slash characters must be explicitly matched by 355 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 356 subdirectories must be reviewed. 357 35820130716: 359 The default ARM ABI has changed to the ARM EABI. The old ABI is 360 incompatible with the ARM EABI and all programs and modules will 361 need to be rebuilt to work with a new kernel. 362 363 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 364 365 NOTE: Support for the old ABI will be removed in the future and 366 users are advised to upgrade. 367 36820130709: 369 pkg_install has been disconnected from the build if you really need it 370 you should add WITH_PKGTOOLS in your src.conf(5). 371 37220130709: 373 Most of network statistics structures were changed to be able 374 keep 64-bits counters. Thus all tools, that work with networking 375 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 376 37720130629: 378 Fix targets that run multiple make's to use && rather than ; 379 so that subsequent steps depend on success of previous. 380 381 NOTE: if building 'universe' with -j* on stable/8 or stable/9 382 it would be better to start the build using bmake, to avoid 383 overloading the machine. 384 38520130618: 386 Fix a bug that allowed a tracing process (e.g. gdb) to write 387 to a memory-mapped file in the traced process's address space 388 even if neither the traced process nor the tracing process had 389 write access to that file. 390 39120130615: 392 CVS has been removed from the base system. An exact copy 393 of the code is available from the devel/cvs port. 394 39520130613: 396 Some people report the following error after the switch to bmake: 397 398 make: illegal option -- J 399 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 400 ... 401 *** [buildworld] Error code 2 402 403 this likely due to an old instance of make in 404 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 405 which src/Makefile will use that blindly, if it exists, so if 406 you see the above error: 407 408 rm -rf `make -V MAKEPATH` 409 410 should resolve it. 411 41220130516: 413 Use bmake by default. 414 Whereas before one could choose to build with bmake via 415 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 416 make. The goal is to remove these knobs for 10-RELEASE. 417 418 It is worth noting that bmake (like gmake) treats the command 419 line as the unit of failure, rather than statements within the 420 command line. Thus '(cd some/where && dosomething)' is safer 421 than 'cd some/where; dosomething'. The '()' allows consistent 422 behavior in parallel build. 423 42420130429: 425 Fix a bug that allows NFS clients to issue READDIR on files. 426 42720130426: 428 The WITHOUT_IDEA option has been removed because 429 the IDEA patent expired. 430 43120130426: 432 The sysctl which controls TRIM support under ZFS has been renamed 433 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 434 enabled by default. 435 43620130425: 437 The mergemaster command now uses the default MAKEOBJDIRPREFIX 438 rather than creating it's own in the temporary directory in 439 order allow access to bootstrapped versions of tools such as 440 install and mtree. When upgrading from version of FreeBSD where 441 the install command does not support -l, you will need to 442 install a new mergemaster command if mergemaster -p is required. 443 This can be accomplished with the command (cd src/usr.sbin/mergemaster 444 && make install). 445 44620130404: 447 Legacy ATA stack, disabled and replaced by new CAM-based one since 448 FreeBSD 9.0, completely removed from the sources. Kernel modules 449 atadisk and atapi*, user-level tools atacontrol and burncd are 450 removed. Kernel option `options ATA_CAM` is now permanently enabled 451 and removed. 452 45320130319: 454 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 455 and socketpair(2). Software, in particular Kerberos, may 456 automatically detect and use these during building. The resulting 457 binaries will not work on older kernels. 458 45920130308: 460 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 461 information, see the respective 20130304 entry). 462 46320130304: 464 Recent commits to callout(9) changed the size of struct callout, 465 so the KBI is probably heavily disturbed. Also, some functions 466 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 467 by macros. Every kernel module using it won't load, so rebuild 468 is requested. 469 470 The ctl device has been re-enabled in GENERIC for i386 and amd64, 471 but does not initialize by default (because of the new CTL_DISABLE 472 option) to save memory. To re-enable it, remove the CTL_DISABLE 473 option from the kernel config file or set kern.cam.ctl.disable=0 474 in /boot/loader.conf. 475 47620130301: 477 The ctl device has been disabled in GENERIC for i386 and amd64. 478 This was done due to the extra memory being allocated at system 479 initialisation time by the ctl driver which was only used if 480 a CAM target device was created. This makes a FreeBSD system 481 unusable on 128MB or less of RAM. 482 48320130208: 484 A new compression method (lz4) has been merged to -HEAD. Please 485 refer to zpool-features(7) for more information. 486 487 Please refer to the "ZFS notes" section of this file for information 488 on upgrading boot ZFS pools. 489 49020130129: 491 A BSD-licensed patch(1) variant has been added and is installed 492 as bsdpatch, being the GNU version the default patch. 493 To inverse the logic and use the BSD-licensed one as default, 494 while having the GNU version installed as gnupatch, rebuild 495 and install world with the WITH_BSD_PATCH knob set. 496 49720130121: 498 Due to the use of the new -l option to install(1) during build 499 and install, you must take care not to directly set the INSTALL 500 make variable in your /etc/make.conf, /etc/src.conf, or on the 501 command line. If you wish to use the -C flag for all installs 502 you may be able to add INSTALL+=-C to /etc/make.conf or 503 /etc/src.conf. 504 50520130118: 506 The install(1) option -M has changed meaning and now takes an 507 argument that is a file or path to append logs to. In the 508 unlikely event that -M was the last option on the command line 509 and the command line contained at least two files and a target 510 directory the first file will have logs appended to it. The -M 511 option served little practical purpose in the last decade so its 512 use is expected to be extremely rare. 513 51420121223: 515 After switching to Clang as the default compiler some users of ZFS 516 on i386 systems started to experience stack overflow kernel panics. 517 Please consider using 'options KSTACK_PAGES=4' in such configurations. 518 51920121222: 520 GEOM_LABEL now mangles label names read from file system metadata. 521 Mangling affect labels containing spaces, non-printable characters, 522 '%' or '"'. Device names in /etc/fstab and other places may need to 523 be updated. 524 52520121217: 526 By default, only the 10 most recent kernel dumps will be saved. To 527 restore the previous behaviour (no limit on the number of kernel dumps 528 stored in the dump directory) add the following line to /etc/rc.conf: 529 530 savecore_flags="" 531 53220121201: 533 With the addition of auditdistd(8), a new auditdistd user is now 534 required during installworld. "mergemaster -p" can be used to 535 add the user prior to installworld, as documented in the handbook. 536 53720121117: 538 The sin6_scope_id member variable in struct sockaddr_in6 is now 539 filled by the kernel before passing the structure to the userland via 540 sysctl or routing socket. This means the KAME-specific embedded scope 541 id in sin6_addr.s6_addr[2] is always cleared in userland application. 542 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 543 __FreeBSD_version is bumped to 1000025. 544 54520121105: 546 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 547 This means that the world and kernel will be compiled with clang 548 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 549 and /usr/bin/cpp. To disable this behavior and revert to building 550 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 551 of current may need to bootstrap WITHOUT_CLANG first if the clang 552 build fails (its compatibility window doesn't extend to the 9 stable 553 branch point). 554 55520121102: 556 The IPFIREWALL_FORWARD kernel option has been removed. Its 557 functionality now turned on by default. 558 55920121023: 560 The ZERO_COPY_SOCKET kernel option has been removed and 561 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 562 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 563 mechanism which is not safe and may result in kernel crashes. 564 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 565 driver supports disposeable external page sized mbuf storage. 566 Proper replacements for both zero-copy mechanisms are under 567 consideration and will eventually lead to complete removal 568 of the two kernel options. 569 57020121023: 571 The IPv4 network stack has been converted to network byte 572 order. The following modules need to be recompiled together 573 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 574 pf(4), ipfw(4), ng_ipfw(4), stf(4). 575 57620121022: 577 Support for non-MPSAFE filesystems was removed from VFS. The 578 VFS_VERSION was bumped, all filesystem modules shall be 579 recompiled. 580 58120121018: 582 All the non-MPSAFE filesystems have been disconnected from 583 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 584 portalfs, smbfs, xfs. 585 58620121016: 587 The interface cloning API and ABI has changed. The following 588 modules need to be recompiled together with kernel: 589 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 590 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 591 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 592 59320121015: 594 The sdhci driver was split in two parts: sdhci (generic SD Host 595 Controller logic) and sdhci_pci (actual hardware driver). 596 No kernel config modifications are required, but if you 597 load sdhc as a module you must switch to sdhci_pci instead. 598 59920121014: 600 Import the FUSE kernel and userland support into base system. 601 60220121013: 603 The GNU sort(1) program has been removed since the BSD-licensed 604 sort(1) has been the default for quite some time and no serious 605 problems have been reported. The corresponding WITH_GNU_SORT 606 knob has also gone. 607 60820121006: 609 The pfil(9) API/ABI for AF_INET family has been changed. Packet 610 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 611 with new kernel. 612 61320121001: 614 The net80211(4) ABI has been changed to allow for improved driver 615 PS-POLL and power-save support. All wireless drivers need to be 616 recompiled to work with the new kernel. 617 61820120913: 619 The random(4) support for the VIA hardware random number 620 generator (`PADLOCK') is no longer enabled unconditionally. 621 Add the padlock_rng device in the custom kernel config if 622 needed. The GENERIC kernels on i386 and amd64 do include the 623 device, so the change only affects the custom kernel 624 configurations. 625 62620120908: 627 The pf(4) packet filter ABI has been changed. pfctl(8) and 628 snmp_pf module need to be recompiled to work with new kernel. 629 63020120828: 631 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 632 to -HEAD. Pools that have empty_bpobj in active state can not be 633 imported read-write with ZFS implementations that do not support 634 this feature. For more information read the zpool-features(5) 635 manual page. 636 63720120727: 638 The sparc64 ZFS loader has been changed to no longer try to auto- 639 detect ZFS providers based on diskN aliases but now requires these 640 to be explicitly listed in the OFW boot-device environment variable. 641 64220120712: 643 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 644 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 645 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 646 64720120712: 648 The following sysctls and tunables have been renamed for consistency 649 with other variables: 650 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 651 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 652 65320120628: 654 The sort utility has been replaced with BSD sort. For now, GNU sort 655 is also available as "gnusort" or the default can be set back to 656 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 657 installed as "bsdsort". 658 65920120611: 660 A new version of ZFS (pool version 5000) has been merged to -HEAD. 661 Starting with this version the old system of ZFS pool versioning 662 is superseded by "feature flags". This concept enables forward 663 compatibility against certain future changes in functionality of ZFS 664 pools. The first read-only compatible "feature flag" for ZFS pools 665 is named "com.delphix:async_destroy". For more information 666 read the new zpool-features(5) manual page. 667 Please refer to the "ZFS notes" section of this file for information 668 on upgrading boot ZFS pools. 669 67020120417: 671 The malloc(3) implementation embedded in libc now uses sources imported 672 as contrib/jemalloc. The most disruptive API change is to 673 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 674 delete it prior to installworld, and optionally re-create it using the 675 new format after rebooting. See malloc.conf(5) for details 676 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 677 NAMESPACE section). 678 67920120328: 680 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 681 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 682 now spelled mips. This is to aid compatibility with third-party 683 software that expects this naming scheme in uname(3). Little-endian 684 settings are unchanged. If you are updating a big-endian mips64 machine 685 from before this change, you may need to set MACHINE_ARCH=mips64 in 686 your environment before the new build system will recognize your machine. 687 68820120306: 689 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 690 platforms. 691 69220120229: 693 Now unix domain sockets behave "as expected" on nullfs(5). Previously 694 nullfs(5) did not pass through all behaviours to the underlying layer, 695 as a result if we bound to a socket on the lower layer we could connect 696 only to the lower path; if we bound to the upper layer we could connect 697 only to the upper path. The new behavior is one can connect to both the 698 lower and the upper paths regardless what layer path one binds to. 699 70020120211: 701 The getifaddrs upgrade path broken with 20111215 has been restored. 702 If you have upgraded in between 20111215 and 20120209 you need to 703 recompile libc again with your kernel. You still need to recompile 704 world to be able to configure CARP but this restriction already 705 comes from 20111215. 706 70720120114: 708 The set_rcvar() function has been removed from /etc/rc.subr. All 709 base and ports rc.d scripts have been updated, so if you have a 710 port installed with a script in /usr/local/etc/rc.d you can either 711 hand-edit the rcvar= line, or reinstall the port. 712 713 An easy way to handle the mass-update of /etc/rc.d: 714 rm /etc/rc.d/* && mergemaster -i 715 71620120109: 717 panic(9) now stops other CPUs in the SMP systems, disables interrupts 718 on the current CPU and prevents other threads from running. 719 This behavior can be reverted using the kern.stop_scheduler_on_panic 720 tunable/sysctl. 721 The new behavior can be incompatible with kern.sync_on_panic. 722 72320111215: 724 The carp(4) facility has been changed significantly. Configuration 725 of the CARP protocol via ifconfig(8) has changed, as well as format 726 of CARP events submitted to devd(8) has changed. See manual pages 727 for more information. The arpbalance feature of carp(4) is currently 728 not supported anymore. 729 730 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 731 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 732 need to be recompiled. 733 73420111122: 735 The acpi_wmi(4) status device /dev/wmistat has been renamed to 736 /dev/wmistat0. 737 73820111108: 739 The option VFS_ALLOW_NONMPSAFE option has been added in order to 740 explicitely support non-MPSAFE filesystems. 741 It is on by default for all supported platform at this present 742 time. 743 74420111101: 745 The broken amd(4) driver has been replaced with esp(4) in the amd64, 746 i386 and pc98 GENERIC kernel configuration files. 747 74820110930: 749 sysinstall has been removed 750 75120110923: 752 The stable/9 branch created in subversion. This corresponds to the 753 RELENG_9 branch in CVS. 754 75520110913: 756 This commit modifies vfs_register() so that it uses a hash 757 calculation to set vfc_typenum, which is enabled by default. 758 The first time a system is booted after this change, the 759 vfc_typenum values will change for all file systems. The 760 main effect of this is a change to the NFS server file handles 761 for file systems that use vfc_typenum in their fsid, such as ZFS. 762 It will, however, prevent vfc_typenum from changing when file 763 systems are loaded in a different order for subsequent reboots. 764 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 765 until you are ready to remount all NFS clients after a reboot. 766 76720110828: 768 Bump the shared library version numbers for libraries that 769 do not use symbol versioning, have changed the ABI compared 770 to stable/8 and which shared library version was not bumped. 771 Done as part of 9.0-RELEASE cycle. 772 77320110815: 774 During the merge of Capsicum features, the fget(9) KPI was modified. 775 This may require the rebuilding of out-of-tree device drivers -- 776 issues have been reported specifically with the nVidia device driver. 777 __FreeBSD_version is bumped to 900041. 778 779 Also, there is a period between 20110811 and 20110814 where the 780 special devices /dev/{stdin,stdout,stderr} did not work correctly. 781 Building world from a kernel during that window may not work. 782 78320110628: 784 The packet filter (pf) code has been updated to OpenBSD 4.5. 785 You need to update userland tools to be in sync with kernel. 786 This update breaks backward compatibility with earlier pfsync(4) 787 versions. Care must be taken when updating redundant firewall setups. 788 78920110608: 790 The following sysctls and tunables are retired on x86 platforms: 791 machdep.hlt_cpus 792 machdep.hlt_logical_cpus 793 The following sysctl is retired: 794 machdep.hyperthreading_allowed 795 The sysctls were supposed to provide a way to dynamically offline and 796 online selected CPUs on x86 platforms, but the implementation has not 797 been reliable especially with SCHED_ULE scheduler. 798 machdep.hyperthreading_allowed tunable is still available to ignore 799 hyperthreading CPUs at OS level. 800 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 801 where X is an APIC ID of a CPU. Be advised, though, that disabling 802 CPUs in non-uniform fashion will result in non-uniform topology and 803 may lead to sub-optimal system performance with SCHED_ULE, which is 804 a default scheduler. 805 80620110607: 807 cpumask_t type is retired and cpuset_t is used in order to describe 808 a mask of CPUs. 809 81020110531: 811 Changes to ifconfig(8) for dynamic address family detection mandate 812 that you are running a kernel of 20110525 or later. Make sure to 813 follow the update procedure to boot a new kernel before installing 814 world. 815 81620110513: 817 Support for sun4v architecture is officially dropped 818 81920110503: 820 Several KPI breaking changes have been committed to the mii(4) layer, 821 the PHY drivers and consequently some Ethernet drivers using mii(4). 822 This means that miibus.ko and the modules of the affected Ethernet 823 drivers need to be recompiled. 824 825 Note to kernel developers: Given that the OUI bit reversion problem 826 was fixed as part of these changes all mii(4) commits related to OUIs, 827 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 828 handling, no longer can be merged verbatim to stable/8 and previous 829 branches. 830 83120110430: 832 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 833 into their kernel configurations along with 'device pci'. 834 83520110427: 836 The default NFS client is now the new NFS client, so fstype "newnfs" 837 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 838 Although mounts via fstype "nfs" will usually work without userland 839 changes, it is recommended that the mount(8) and mount_nfs(8) 840 commands be rebuilt from sources and that a link to mount_nfs called 841 mount_oldnfs be created. The new client is compiled into the 842 kernel with "options NFSCL" and this is needed for diskless root 843 file systems. The GENERIC kernel configs have been changed to use 844 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 845 To use the regular/old client, you can "mount -t oldnfs ...". For 846 a diskless root file system, you must also include a line like: 847 848 vfs.root.mountfrom="oldnfs:" 849 850 in the boot/loader.conf on the root fs on the NFS server to make 851 a diskless root fs use the old client. 852 85320110424: 854 The GENERIC kernels for all architectures now default to the new 855 CAM-based ATA stack. It means that all legacy ATA drivers were 856 removed and replaced by respective CAM drivers. If you are using 857 ATA device names in /etc/fstab or other places, make sure to update 858 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 859 where 'Y's are the sequential numbers starting from zero for each type 860 in order of detection, unless configured otherwise with tunables, 861 see cam(4)). There will be symbolic links created in /dev/ to map 862 old adX devices to the respective adaY. They should provide basic 863 compatibility for file systems mounting in most cases, but they do 864 not support old user-level APIs and do not have respective providers 865 in GEOM. Consider using updated management tools with new device names. 866 867 It is possible to load devices ahci, ata, siis and mvs as modules, 868 but option ATA_CAM should remain in kernel configuration to make ata 869 module work as CAM driver supporting legacy ATA controllers. Device ata 870 still can be used in modular fashion (atacore + ...). Modules atadisk 871 and atapi* are not used and won't affect operation in ATA_CAM mode. 872 Note that to use CAM-based ATA kernel should include CAM devices 873 scbus, pass, da (or explicitly ada), cd and optionally others. All of 874 them are parts of the cam module. 875 876 ataraid(4) functionality is now supported by the RAID GEOM class. 877 To use it you can load geom_raid kernel module and use graid(8) tool 878 for management. Instead of /dev/arX device names, use /dev/raid/rX. 879 880 No kernel config options or code have been removed, so if a problem 881 arises, please report it and optionally revert to the old ATA stack. 882 In order to do it you can remove from the kernel config: 883 options ATA_CAM 884 device ahci 885 device mvs 886 device siis 887 , and instead add back: 888 device atadisk # ATA disk drives 889 device ataraid # ATA RAID drives 890 device atapicd # ATAPI CDROM drives 891 device atapifd # ATAPI floppy drives 892 device atapist # ATAPI tape drives 893 89420110423: 895 The default NFS server has been changed to the new server, which 896 was referred to as the experimental server. If you need to switch 897 back to the old NFS server, you must now put the "-o" option on 898 both the mountd and nfsd commands. This can be done using the 899 mountd_flags and nfs_server_flags rc.conf variables until an 900 update to the rc scripts is committed, which is coming soon. 901 90220110418: 903 The GNU Objective-C runtime library (libobjc), and other Objective-C 904 related components have been removed from the base system. If you 905 require an Objective-C library, please use one of the available ports. 906 90720110331: 908 ath(4) has been split into bus- and device- modules. if_ath contains 909 the HAL, the TX rate control and the network device code. if_ath_pci 910 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 911 contains the AHB glue. Users need to load both if_ath_pci and if_ath 912 in order to use ath on everything else. 913 914 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 915 need to load if_ath and if_ath_pci for ath(4) operation. 916 91720110314: 918 As part of the replacement of sysinstall, the process of building 919 release media has changed significantly. For details, please re-read 920 release(7), which has been updated to reflect the new build process. 921 92220110218: 923 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 924 is the last available version under GPLv2. It brings a number of new 925 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 926 4.1 and SSE 4.2), better support for powerpc64, a number of new 927 directives, and lots of other small improvements. See the ChangeLog 928 file in contrib/binutils for the full details. 929 93020110218: 931 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 932 compliant, and will now use half of hash for authentication. 933 This will break interoperability with all stacks (including all 934 actual FreeBSD versions) who implement 935 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 936 authentication). 937 The only workaround with such peers is to use another HMAC 938 algorithm for IPsec ("phase 2") authentication. 939 94020110207: 941 Remove the uio_yield prototype and symbol. This function has 942 been misnamed since it was introduced and should not be 943 globally exposed with this name. The equivalent functionality 944 is now available using kern_yield(curthread->td_user_pri). 945 The function remains undocumented. 946 94720110112: 948 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 949 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 950 for scalar sysctls is defined but disabled. Code that needs 951 UQUAD to pass the type checking that must compile on older 952 systems where the define is not present can check against 953 __FreeBSD_version >= 900030. 954 955 The system dialog(1) has been replaced with a new version previously 956 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 957 with the previous version, but the libdialog associated with it has 958 a largely incompatible API. As such, the original version of libdialog 959 will be kept temporarily as libodialog, until its base system consumers 960 are replaced or updated. Bump __FreeBSD_version to 900030. 961 96220110103: 963 If you are trying to run make universe on a -stable system, and you get 964 the following warning: 965 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 966 unknown. config(8) likely too old." 967 or something similar to it, then you must upgrade your -stable system 968 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 969 stable/8) or build the config from the latest stable/8 branch and 970 install it on your system. 971 972 Prior to this date, building a current universe on 8-stable system from 973 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 974 error in the first kernel build phase. A new config on those old 975 systems will fix that problem for older versions of -current. 976 97720101228: 978 The TCP stack has been modified to allow Khelp modules to interact with 979 it via helper hook points and store per-connection data in the TCP 980 control block. Bump __FreeBSD_version to 900029. User space tools that 981 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 982 be recompiled. 983 98420101114: 985 Generic IEEE 802.3 annex 31B full duplex flow control support has been 986 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 987 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 988 to take advantage of it instead of using custom implementations. This 989 means that these drivers now no longer unconditionally advertise 990 support for flow control but only do so if flow control is a selected 991 media option. This was implemented in the generic support that way in 992 order to allow flow control to be switched on and off via ifconfig(8) 993 with the PHY specific default to typically off in order to protect 994 from unwanted effects. Consequently, if you used flow control with 995 one of the above mentioned drivers you now need to explicitly enable 996 it, for example via: 997 ifconfig bge0 media auto mediaopt flowcontrol 998 999 Along with the above mentioned changes generic support for setting 1000 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1001 e1000phy(4) as well as ip1000phy(4) have been converted to take 1002 advantage of it. This means that these drivers now no longer take the 1003 link0 parameter for selecting master mode but the master media option 1004 has to be used instead, for example like in the following: 1005 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1006 1007 Selection of master mode now is also available with all other PHY 1008 drivers supporting 1000baseT. 1009 101020101111: 1011 The TCP stack has received a significant update to add support for 1012 modularised congestion control and generally improve the clarity of 1013 congestion control decisions. Bump __FreeBSD_version to 900025. User 1014 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1015 sockstat) need to be recompiled. 1016 101720101002: 1018 The man(1) utility has been replaced by a new version that no longer 1019 uses /etc/manpath.config. Please consult man.conf(5) for how to 1020 migrate local entries to the new format. 1021 102220100928: 1023 The copyright strings printed by login(1) and sshd(8) at the time of a 1024 new connection have been removed to follow other operating systems and 1025 upstream sshd. 1026 102720100915: 1028 A workaround for a fixed ld bug has been removed in kernel code, 1029 so make sure that your system ld is built from sources after 1030 revision 210245 from 2010-07-19 (r211583 if building head kernel 1031 on stable/8, r211584 for stable/7; both from 2010-08-21). 1032 A symptom of incorrect ld version is different addresses for 1033 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1034 103520100913: 1036 The $ipv6_prefer variable in rc.conf(5) has been split into 1037 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1038 1039 The $ip6addrctl_policy is a variable to choose a pre-defined 1040 address selection policy set by ip6addrctl(8). A value 1041 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1042 default is "AUTO". 1043 1044 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1045 flag (see an entry of 20090926) is set on an interface with no 1046 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1047 security reason. If you want IPv6 link-local address on all 1048 interfaces by default, set this to "YES". 1049 1050 The old ipv6_prefer="YES" is equivalent to 1051 ipv6_activate_all_interfaces="YES" and 1052 ip6addrctl_policy="ipv6_prefer". 1053 105420100913: 1055 DTrace has grown support for userland tracing. Due to this, DTrace is 1056 now i386 and amd64 only. 1057 dtruss(1) is now installed by default on those systems and a new 1058 kernel module is needed for userland tracing: fasttrap. 1059 No changes to your kernel config file are necessary to enable 1060 userland tracing, but you might consider adding 'STRIP=' and 1061 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1062 to have informative userland stack traces in DTrace (ustack). 1063 106420100725: 1065 The acpi_aiboost(4) driver has been removed in favor of the new 1066 aibs(4) driver. You should update your kernel configuration file. 1067 106820100722: 1069 BSD grep has been imported to the base system and it is built by 1070 default. It is completely BSD licensed, highly GNU-compatible, uses 1071 less memory than its GNU counterpart and has a small codebase. 1072 However, it is slower than its GNU counterpart, which is mostly 1073 noticeable for larger searches, for smaller ones it is measurable 1074 but not significant. The reason is complex, the most important factor 1075 is that we lack a modern and efficient regex library and GNU 1076 overcomes this by optimizing the searches internally. Future work 1077 on improving the regex performance is planned, for the meantime, 1078 users that need better performance, can build GNU grep instead by 1079 setting the WITH_GNU_GREP knob. 1080 108120100713: 1082 Due to the import of powerpc64 support, all existing powerpc kernel 1083 configuration files must be updated with a machine directive like this: 1084 machine powerpc powerpc 1085 1086 In addition, an updated config(8) is required to build powerpc kernels 1087 after this change. 1088 108920100713: 1090 A new version of ZFS (version 15) has been merged to -HEAD. 1091 This version uses a python library for the following subcommands: 1092 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1093 For full functionality of these commands the following port must 1094 be installed: sysutils/py-zfs 1095 109620100429: 1097 'vm_page's are now hashed by physical address to an array of mutexes. 1098 Currently this is only used to serialize access to hold_count. Over 1099 time the page queue mutex will be peeled away. This changes the size 1100 of pmap on every architecture. And requires all callers of vm_page_hold 1101 and vm_page_unhold to be updated. 1102 110320100402: 1104 WITH_CTF can now be specified in src.conf (not recommended, there 1105 are some problems with static executables), make.conf (would also 1106 affect ports which do not use GNU make and do not override the 1107 compile targets) or in the kernel config (via "makeoptions 1108 WITH_CTF=yes"). 1109 When WITH_CTF was specified there before this was silently ignored, 1110 so make sure that WITH_CTF is not used in places which could lead 1111 to unwanted behavior. 1112 111320100311: 1114 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1115 to allow 32-bit compatibility on non-x86 platforms. All kernel 1116 configurations on amd64 and ia64 platforms using these options must 1117 be modified accordingly. 1118 111920100113: 1120 The utmp user accounting database has been replaced with utmpx, 1121 the user accounting interface standardized by POSIX. 1122 Unfortunately the semantics of utmp and utmpx don't match, 1123 making it practically impossible to support both interfaces. 1124 The user accounting database is used by tools like finger(1), 1125 last(1), talk(1), w(1) and ac(8). 1126 1127 All applications in the base system use utmpx. This means only 1128 local binaries (e.g. from the ports tree) may still use these 1129 utmp database files. These applications must be rebuilt to make 1130 use of utmpx. 1131 1132 After the system has been upgraded, it is safe to remove the old 1133 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1134 assuming their contents is of no importance anymore. Old wtmp 1135 databases can only be used by last(1) and ac(8) after they have 1136 been converted to the new format using wtmpcvt(1). 1137 113820100108: 1139 Introduce the kernel thread "deadlock resolver" (which can be enabled 1140 via the DEADLKRES option, see NOTES for more details) and the 1141 sleepq_type() function for sleepqueues. 1142 114320091202: 1144 The rc.firewall and rc.firewall6 were unified, and 1145 rc.firewall6 and rc.d/ip6fw were removed. 1146 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1147 variables are obsoleted. Instead, the following new rc 1148 variables are added to rc.d/ipfw: 1149 1150 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1151 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1152 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1153 1154 The meanings correspond to the relevant IPv4 variables. 1155 115620091125: 1157 8.0-RELEASE. 1158 115920091113: 1160 The default terminal emulation for syscons(4) has been changed 1161 from cons25 to xterm on all platforms except pc98. This means 1162 that the /etc/ttys file needs to be updated to ensure correct 1163 operation of applications on the console. 1164 1165 The terminal emulation style can be toggled per window by using 1166 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1167 options can be used to change the compile-time default back to 1168 cons25. 1169 1170 To prevent graphical artifacts, make sure the TERM environment 1171 variable is set to match the terminal emulation that is being 1172 performed by syscons(4). 1173 117420091109: 1175 The layout of the structure ieee80211req_scan_result has changed. 1176 Applications that require wireless scan results (e.g. ifconfig(8)) 1177 from net80211 need to be recompiled. 1178 1179 Applications such as wpa_supplicant(8) may require a full world 1180 build without using NO_CLEAN in order to get synchronized with the 1181 new structure. 1182 118320091025: 1184 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1185 There's one kernel module for each firmware. Adding "device iwnfw" 1186 to the kernel configuration file means including all three firmware 1187 images inside the kernel. If you want to include just the one for 1188 your wireless card, use the devices iwn4965fw, iwn5000fw or 1189 iwn5150fw. 1190 119120090926: 1192 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1193 into rc.d/netif. The changes are the following: 1194 1195 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1196 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1197 Note that both variables need the "inet6" keyword at the head. 1198 1199 Do not set $ipv6_network_interfaces manually if you do not 1200 understand what you are doing. It is not needed in most cases. 1201 1202 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1203 they are obsolete. 1204 1205 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1206 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1207 1208 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1209 all configured interfaces have "inet6 accept_rtadv" in the 1210 $ifconfig_IF_ipv6. These are for backward compatibility. 1211 1212 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1213 functionality of interfaces with no corresponding 1214 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1215 and the default address selection policy of ip6addrctl(8) 1216 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1217 Note that if you want to configure IPv6 functionality on the 1218 disabled interfaces after boot, first you need to clear the flag by 1219 using ifconfig(8) like: 1220 1221 ifconfig em0 inet6 -ifdisabled 1222 1223 If YES, the default address selection policy is set as 1224 IPv6-preferred. 1225 1226 The default value of $ipv6_prefer is NO. 1227 1228 4. If your system need to receive Router Advertisement messages, 1229 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1230 scripts automatically invoke rtsol(8) when the interface becomes 1231 UP. The Router Advertisement messages are used for SLAAC 1232 (State-Less Address AutoConfiguration). 1233 123420090922: 1235 802.11s D3.03 support was committed. This is incompatible with the 1236 previous code, which was based on D3.0. 1237 123820090912: 1239 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1240 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1241 control whether accepting Router Advertisement messages or not. 1242 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1243 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1244 The ifconfig(8) utility now supports these flags. 1245 124620090910: 1247 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1248 mount(8) and -a option for df(1) to see them. 1249 125020090825: 1251 The old tunable hw.bus.devctl_disable has been superseded by 1252 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1253 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1254 is 1000. 1255 125620090813: 1257 Remove the option STOP_NMI. The default action is now to use NMI only 1258 for KDB via the newly introduced function stop_cpus_hard() and 1259 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1260 126120090803: 1262 The stable/8 branch created in subversion. This corresponds to the 1263 RELENG_8 branch in CVS. 1264 126520090719: 1266 Bump the shared library version numbers for all libraries that do not 1267 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1268 __FreeBSD_version to 800105. 1269 127020090714: 1271 Due to changes in the implementation of virtual network stack support, 1272 all network-related kernel modules must be recompiled. As this change 1273 breaks the ABI, bump __FreeBSD_version to 800104. 1274 127520090713: 1276 The TOE interface to the TCP syncache has been modified to remove 1277 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1278 The cxgb driver is the only TOE consumer affected by this change, and 1279 needs to be recompiled along with the kernel. As this change breaks 1280 the ABI, bump __FreeBSD_version to 800103. 1281 128220090712: 1283 Padding has been added to struct tcpcb, sackhint and tcpstat in 1284 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1285 maintaining the ABI. However, this change breaks the ABI, so bump 1286 __FreeBSD_version to 800102. User space tools that rely on the size of 1287 any of these structs (e.g. sockstat) need to be recompiled. 1288 128920090630: 1290 The NFS_LEGACYRPC option has been removed along with the old kernel 1291 RPC implementation that this option selected. Kernel configurations 1292 may need to be adjusted. 1293 129420090629: 1295 The network interface device nodes at /dev/net/<interface> have been 1296 removed. All ioctl operations can be performed the normal way using 1297 routing sockets. The kqueue functionality can generally be replaced 1298 with routing sockets. 1299 130020090628: 1301 The documentation from the FreeBSD Documentation Project (Handbook, 1302 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1303 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1304 130520090624: 1306 The ABI of various structures related to the SYSV IPC API have been 1307 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1308 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1309 800100. 1310 131120090622: 1312 Layout of struct vnet has changed as routing related variables were 1313 moved to their own Vimage module. Modules need to be recompiled. Bump 1314 __FreeBSD_version to 800099. 1315 131620090619: 1317 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1318 respectively. As long as no more than 16 groups per process are used, 1319 no changes should be visible. When more than 16 groups are used, old 1320 binaries may fail if they call getgroups() or getgrouplist() with 1321 statically sized storage. Recompiling will work around this, but 1322 applications should be modified to use dynamically allocated storage 1323 for group arrays as POSIX.1-2008 does not cap an implementation's 1324 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1325 1326 NFS and portalfs mounts may also be affected as the list of groups is 1327 truncated to 16. Users of NFS who use more than 16 groups, should 1328 take care that negative group permissions are not used on the exported 1329 file systems as they will not be reliable unless a GSSAPI based 1330 authentication method is used. 1331 133220090616: 1333 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1334 option compiles in the support for adaptive spinning for lockmgrs 1335 which want to enable it. The lockinit() function now accepts the flag 1336 LK_ADAPTIVE in order to make the lock object subject to adaptive 1337 spinning when both held in write and read mode. 1338 133920090613: 1340 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1341 changed. User applications that use this ioctl need to be rebuilt. 1342 134320090611: 1344 The layout of struct thread has changed. Kernel and modules need to 1345 be rebuilt. 1346 134720090608: 1348 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1349 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1350 135120090602: 1352 window(1) has been removed from the base system. It can now be 1353 installed from ports. The port is called misc/window. 1354 135520090601: 1356 The way we are storing and accessing `routing table' entries has 1357 changed. Programs reading the FIB, like netstat, need to be 1358 re-compiled. 1359 136020090601: 1361 A new netisr implementation has been added for FreeBSD 8. Network 1362 file system modules, such as igmp, ipdivert, and others, should be 1363 rebuilt. 1364 Bump __FreeBSD_version to 800096. 1365 136620090530: 1367 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1368 more valid. 1369 137020090530: 1371 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1372 Bump __FreeBSD_version to 800094. 1373 137420090529: 1375 Add mnt_xflag field to 'struct mount'. File system modules need to be 1376 rebuilt. 1377 Bump __FreeBSD_version to 800093. 1378 137920090528: 1380 The compiling option ADAPTIVE_SX has been retired while it has been 1381 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1382 The KPI for sx_init_flags() changes as accepting flags: 1383 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1384 been introduced in order to handle the reversed logic. 1385 Bump __FreeBSD_version to 800092. 1386 138720090527: 1388 Add support for hierarchical jails. Remove global securelevel. 1389 Bump __FreeBSD_version to 800091. 1390 139120090523: 1392 The layout of struct vnet_net has changed, therefore modules 1393 need to be rebuilt. 1394 Bump __FreeBSD_version to 800090. 1395 139620090523: 1397 The newly imported zic(8) produces a new format in the output. Please 1398 run tzsetup(8) to install the newly created data to /etc/localtime. 1399 140020090520: 1401 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1402 hw.usb.* and is now consistent again with previous releases. 1403 140420090520: 1405 802.11 monitor mode support was revised and driver api's were changed. 1406 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1407 of DLT_IEEE802_11. No user-visible data structures were changed but 1408 applications that use DLT_IEEE802_11 may require changes. 1409 Bump __FreeBSD_version to 800088. 1410 141120090430: 1412 The layout of the following structs has changed: sysctl_oid, 1413 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1414 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1415 panics may be experienced. World rebuild is required for 1416 correctly checking networking state from userland. 1417 Bump __FreeBSD_version to 800085. 1418 141920090429: 1420 MLDv2 and Source-Specific Multicast (SSM) have been merged 1421 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1422 The implementation of SSM within FreeBSD's IPv6 stack closely 1423 follows the IPv4 implementation. 1424 1425 For kernel developers: 1426 1427 * The most important changes are that the ip6_output() and 1428 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1429 and this lock has been downgraded to a non-recursive mutex. 1430 1431 * As with the changes to the IPv4 stack to support SSM, filtering 1432 of inbound multicast traffic must now be performed by transport 1433 protocols within the IPv6 stack. This does not apply to TCP and 1434 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1435 1436 * The KPIs used by IPv6 multicast are similar to those used by 1437 the IPv4 stack, with the following differences: 1438 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1439 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1440 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1441 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1442 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1443 for MLDv1 have an additional 'timer' argument which is used to 1444 jitter the initial membership report for the solicited-node 1445 multicast membership on-link. 1446 * This is not strictly needed for MLDv2, which already jitters 1447 its report transmissions. However, the 'timer' argument is 1448 preserved in case MLDv1 is active on the interface. 1449 1450 * The KAME linked-list based IPv6 membership implementation has 1451 been refactored to use a vector similar to that used by the IPv4 1452 stack. 1453 Code which maintains a list of its own multicast memberships 1454 internally, e.g. carp, has been updated to reflect the new 1455 semantics. 1456 1457 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1458 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1459 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1460 implementation constraint which needs to be addressed in HEAD. 1461 1462 For application developers: 1463 1464 * The changes are broadly similar to those made for the IPv4 1465 stack. 1466 1467 * The use of IPv4 and IPv6 multicast socket options on the same 1468 socket, using mapped addresses, HAS NOT been tested or supported. 1469 1470 * There are a number of issues with the implementation of various 1471 IPv6 multicast APIs which need to be resolved in the API surface 1472 before the implementation is fully compatible with KAME userland 1473 use, and these are mostly to do with interface index treatment. 1474 1475 * The literature available discusses the use of either the delta / ASM 1476 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1477 using setsourcefilter(3)/getsourcefilter(3). For more information 1478 please refer to RFC 3768, 'Socket Interface Extensions for 1479 Multicast Source Filters'. 1480 1481 * Applications which use the published RFC 3678 APIs should be fine. 1482 1483 For systems administrators: 1484 1485 * The mtest(8) utility has been refactored to support IPv6, in 1486 addition to IPv4. Interface addresses are no longer accepted 1487 as arguments, their names must be used instead. The utility 1488 will map the interface name to its first IPv4 address as 1489 returned by getifaddrs(3). 1490 1491 * The ifmcstat(8) utility has also been updated to print the MLDv2 1492 endpoint state and source filter lists via sysctl(3). 1493 1494 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1495 loopback of IPv6 multicast datagrams by default; it defaults to 1 1496 to preserve the existing behaviour. Disabling multicast loopback is 1497 recommended for optimal system performance. 1498 1499 * The IPv6 MROUTING code has been changed to examine this sysctl 1500 instead of attempting to perform a group lookup before looping 1501 back forwarded datagrams. 1502 1503 Bump __FreeBSD_version to 800084. 1504 150520090422: 1506 Implement low-level Bluetooth HCI API. 1507 Bump __FreeBSD_version to 800083. 1508 150920090419: 1510 The layout of struct malloc_type, used by modules to register new 1511 memory allocation types, has changed. Most modules will need to 1512 be rebuilt or panics may be experienced. 1513 Bump __FreeBSD_version to 800081. 1514 151520090415: 1516 Anticipate overflowing inp_flags - add inp_flags2. 1517 This changes most offsets in inpcb, so checking v4 connection 1518 state will require a world rebuild. 1519 Bump __FreeBSD_version to 800080. 1520 152120090415: 1522 Add an llentry to struct route and struct route_in6. Modules 1523 embedding a struct route will need to be recompiled. 1524 Bump __FreeBSD_version to 800079. 1525 152620090414: 1527 The size of rt_metrics_lite and by extension rtentry has changed. 1528 Networking administration apps will need to be recompiled. 1529 The route command now supports show as an alias for get, weighting 1530 of routes, sticky and nostick flags to alter the behavior of stateful 1531 load balancing. 1532 Bump __FreeBSD_version to 800078. 1533 153420090408: 1535 Do not use Giant for kbdmux(4) locking. This is wrong and 1536 apparently causing more problems than it solves. This will 1537 re-open the issue where interrupt handlers may race with 1538 kbdmux(4) in polling mode. Typical symptoms include (but 1539 not limited to) duplicated and/or missing characters when 1540 low level console functions (such as gets) are used while 1541 interrupts are enabled (for example geli password prompt, 1542 mountroot prompt etc.). Disabling kbdmux(4) may help. 1543 154420090407: 1545 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1546 kernel modules referencing any of the above need to be recompiled. 1547 Bump __FreeBSD_version to 800075. 1548 154920090320: 1550 GEOM_PART has become the default partition slicer for storage devices, 1551 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1552 introduces some changes: 1553 1554 MSDOS/EBR: the devices created from MSDOS extended partition entries 1555 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1556 to devices with offset-based names. fstabs may need to be modified. 1557 1558 BSD: the "geometry does not match label" warning is harmless in most 1559 cases but it points to problems in file system misalignment with 1560 disk geometry. The "c" partition is now implicit, covers the whole 1561 top-level drive and cannot be (mis)used by users. 1562 1563 General: Kernel dumps are now not allowed to be written to devices 1564 whose partition types indicate they are meant to be used for file 1565 systems (or, in case of MSDOS partitions, as something else than 1566 the "386BSD" type). 1567 1568 Most of these changes date approximately from 200812. 1569 157020090319: 1571 The uscanner(4) driver has been removed from the kernel. This follows 1572 Linux removing theirs in 2.6 and making libusb the default interface 1573 (supported by sane). 1574 157520090319: 1576 The multicast forwarding code has been cleaned up. netstat(1) 1577 only relies on KVM now for printing bandwidth upcall meters. 1578 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1579 ip6_mroute_mod respectively. The config(5) options for statically 1580 compiling this code remain the same, i.e. 'options MROUTING'. 1581 158220090315: 1583 Support for the IFF_NEEDSGIANT network interface flag has been 1584 removed, which means that non-MPSAFE network device drivers are no 1585 longer supported. In particular, if_ar, if_sr, and network device 1586 drivers from the old (legacy) USB stack can no longer be built or 1587 used. 1588 158920090313: 1590 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1591 a bunch of new language catalog files have also been added. 1592 This means that some common libc messages are now localized and 1593 they depend on the LC_MESSAGES environmental variable. 1594 159520090313: 1596 The k8temp(4) driver has been renamed to amdtemp(4) since 1597 support for Family 10 and Family 11 CPU families was added. 1598 159920090309: 1600 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1601 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1602 1603 For kernel developers, the most important changes are that the 1604 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1605 and this lock has been downgraded to a non-recursive mutex. 1606 1607 Transport protocols (UDP, Raw IP) are now responsible for filtering 1608 inbound multicast traffic according to group membership and source 1609 filters. The imo_multicast_filter() KPI exists for this purpose. 1610 Transports which do not use multicast (SCTP, TCP) already reject 1611 multicast by default. Forwarding and receive performance may improve 1612 as a mutex acquisition is no longer needed in the ip_input() 1613 low-level input path. in_addmulti() and in_delmulti() are shimmed 1614 to new KPIs which exist to support SSM in-kernel. 1615 1616 For application developers, it is recommended that loopback of 1617 multicast datagrams be disabled for best performance, as this 1618 will still cause the lock to be taken for each looped-back 1619 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1620 be tuned to 0 to disable loopback by default; it defaults to 1 1621 to preserve the existing behaviour. 1622 1623 For systems administrators, to obtain best performance with 1624 multicast reception and multiple groups, it is always recommended 1625 that a card with a suitably precise hash filter is used. Hash 1626 collisions will still result in the lock being taken within the 1627 transport protocol input path to check group membership. 1628 1629 If deploying FreeBSD in an environment with IGMP snooping switches, 1630 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1631 enabled; this forces 224.0.0.0/24 group membership to be announced 1632 via IGMP. 1633 1634 The size of 'struct igmpstat' has changed; netstat needs to be 1635 recompiled to reflect this. 1636 Bump __FreeBSD_version to 800070. 1637 163820090309: 1639 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1640 updated to use it. This requires a buildworld/installworld in order to 1641 update the library and dependencies (usbconfig, etc). Its advisable to 1642 rebuild all ports which uses libusb. More specific directions are given 1643 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1644 libusb are no longer required and can be removed. 1645 164620090302: 1647 A workaround is committed to allow the creation of System V shared 1648 memory segment of size > 2 GB on the 64-bit architectures. 1649 Due to a limitation of the existing ABI, the shm_segsz member 1650 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1651 wrong for large segments. Note that limits must be explicitly 1652 raised to allow such segments to be created. 1653 165420090301: 1655 The layout of struct ifnet has changed, requiring a rebuild of all 1656 network device driver modules. 1657 165820090227: 1659 The /dev handling for the new USB stack has changed, a 1660 buildworld/installworld is required for libusb20. 1661 166220090223: 1663 The new USB2 stack has now been permanently moved in and all kernel and 1664 module names reverted to their previous values (eg, usb, ehci, ohci, 1665 ums, ...). The old usb stack can be compiled in by prefixing the name 1666 with the letter 'o', the old usb modules have been removed. 1667 Updating entry 20090216 for xorg and 20090215 for libmap may still 1668 apply. 1669 167020090217: 1671 The rc.conf(5) option if_up_delay has been renamed to 1672 defaultroute_delay to better reflect its purpose. If you have 1673 customized this setting in /etc/rc.conf you need to update it to 1674 use the new name. 1675 167620090216: 1677 xorg 7.4 wants to configure its input devices via hald which does not 1678 yet work with USB2. If the keyboard/mouse does not work in xorg then 1679 add 1680 Option "AllowEmptyInput" "off" 1681 to your ServerLayout section. This will cause X to use the configured 1682 kbd and mouse sections from your xorg.conf. 1683 168420090215: 1685 The GENERIC kernels for all architectures now default to the new USB2 1686 stack. No kernel config options or code have been removed so if a 1687 problem arises please report it and optionally revert to the old USB 1688 stack. If you are loading USB kernel modules or have a custom kernel 1689 that includes GENERIC then ensure that usb names are also changed over, 1690 eg uftdi -> usb2_serial_ftdi. 1691 1692 Older programs linked against the ports libusb 0.1 need to be 1693 redirected to the new stack's libusb20. /etc/libmap.conf can 1694 be used for this: 1695 # Map old usb library to new one for usb2 stack 1696 libusb-0.1.so.8 libusb20.so.1 1697 169820090209: 1699 All USB ethernet devices now attach as interfaces under the name ueN 1700 (eg. ue0). This is to provide a predictable name as vendors often 1701 change usb chipsets in a product without notice. 1702 170320090203: 1704 The ichsmb(4) driver has been changed to require SMBus slave 1705 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1706 All of the other SMBus controller drivers require left-justified 1707 slave addresses, so this change makes all the drivers provide the 1708 same interface. 1709 171020090201: 1711 INET6 statistics (struct ip6stat) was updated. 1712 netstat(1) needs to be recompiled. 1713 171420090119: 1715 NTFS has been removed from GENERIC kernel on amd64 to match 1716 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1717 will load ntfs.ko module automatically when NTFS support is 1718 actually needed, unless ntfs.ko is not installed or security 1719 level prohibits loading kernel modules. If either is the case, 1720 "options NTFS" has to be added into kernel config. 1721 172220090115: 1723 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1724 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1725 800061. User space tools that rely on the size of struct tcpcb in 1726 tcp_var.h (e.g. sockstat) need to be recompiled. 1727 172820081225: 1729 ng_tty(4) module updated to match the new TTY subsystem. 1730 Due to API change, user-level applications must be updated. 1731 New API support added to mpd5 CVS and expected to be present 1732 in next mpd5.3 release. 1733 173420081219: 1735 With __FreeBSD_version 800060 the makefs tool is part of 1736 the base system (it was a port). 1737 173820081216: 1739 The afdata and ifnet locks have been changed from mutexes to 1740 rwlocks, network modules will need to be re-compiled. 1741 174220081214: 1743 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1744 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1745 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1746 architecture and 40 bytes on 64-bit architecture. The userland 1747 applications "arp" and "ndp" have been updated accordingly. 1748 The output from "netstat -r" shows only routing entries and 1749 none of the L2 information. 1750 175120081130: 1752 __FreeBSD_version 800057 marks the switchover from the 1753 binary ath hal to source code. Users must add the line: 1754 1755 options AH_SUPPORT_AR5416 1756 1757 to their kernel config files when specifying: 1758 1759 device ath_hal 1760 1761 The ath_hal module no longer exists; the code is now compiled 1762 together with the driver in the ath module. It is now 1763 possible to tailor chip support (i.e. reduce the set of chips 1764 and thereby the code size); consult ath_hal(4) for details. 1765 176620081121: 1767 __FreeBSD_version 800054 adds memory barriers to 1768 <machine/atomic.h>, new interfaces to ifnet to facilitate 1769 multiple hardware transmit queues for cards that support 1770 them, and a lock-less ring-buffer implementation to 1771 enable drivers to more efficiently manage queueing of 1772 packets. 1773 177420081117: 1775 A new version of ZFS (version 13) has been merged to -HEAD. 1776 This version has zpool attribute "listsnapshots" off by 1777 default, which means "zfs list" does not show snapshots, 1778 and is the same as Solaris behavior. 1779 178020081028: 1781 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1782 178320081009: 1784 The uhci, ohci, ehci and slhci USB Host controller drivers have 1785 been put into separate modules. If you load the usb module 1786 separately through loader.conf you will need to load the 1787 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1788 controller add the following to loader.conf: 1789 1790 uhci_load="YES" 1791 ehci_load="YES" 1792 179320081009: 1794 The ABI used by the PMC toolset has changed. Please keep 1795 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1796 sync. 1797 179820081009: 1799 atapci kernel module now includes only generic PCI ATA 1800 driver. AHCI driver moved to ataahci kernel module. 1801 All vendor-specific code moved into separate kernel modules: 1802 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1803 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1804 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1805 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1806 180720080820: 1808 The TTY subsystem of the kernel has been replaced by a new 1809 implementation, which provides better scalability and an 1810 improved driver model. Most common drivers have been migrated to 1811 the new TTY subsystem, while others have not. The following 1812 drivers have not yet been ported to the new TTY layer: 1813 1814 PCI/ISA: 1815 cy, digi, rc, rp, sio 1816 1817 USB: 1818 ubser, ucycom 1819 1820 Line disciplines: 1821 ng_h4, ng_tty, ppp, sl, snp 1822 1823 Adding these drivers to your kernel configuration file shall 1824 cause compilation to fail. 1825 182620080818: 1827 ntpd has been upgraded to 4.2.4p5. 1828 182920080801: 1830 OpenSSH has been upgraded to 5.1p1. 1831 1832 For many years, FreeBSD's version of OpenSSH preferred DSA 1833 over RSA for host and user authentication keys. With this 1834 upgrade, we've switched to the vendor's default of RSA over 1835 DSA. This may cause upgraded clients to warn about unknown 1836 host keys even for previously known hosts. Users should 1837 follow the usual procedure for verifying host keys before 1838 accepting the RSA key. 1839 1840 This can be circumvented by setting the "HostKeyAlgorithms" 1841 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1842 command line. 1843 1844 Please note that the sequence of keys offered for 1845 authentication has been changed as well. You may want to 1846 specify IdentityFile in a different order to revert this 1847 behavior. 1848 184920080713: 1850 The sio(4) driver has been removed from the i386 and amd64 1851 kernel configuration files. This means uart(4) is now the 1852 default serial port driver on those platforms as well. 1853 1854 To prevent collisions with the sio(4) driver, the uart(4) driver 1855 uses different names for its device nodes. This means the 1856 onboard serial port will now most likely be called "ttyu0" 1857 instead of "ttyd0". You may need to reconfigure applications to 1858 use the new device names. 1859 1860 When using the serial port as a boot console, be sure to update 1861 /boot/device.hints and /etc/ttys before booting the new kernel. 1862 If you forget to do so, you can still manually specify the hints 1863 at the loader prompt: 1864 1865 set hint.uart.0.at="isa" 1866 set hint.uart.0.port="0x3F8" 1867 set hint.uart.0.flags="0x10" 1868 set hint.uart.0.irq="4" 1869 boot -s 1870 187120080609: 1872 The gpt(8) utility has been removed. Use gpart(8) to partition 1873 disks instead. 1874 187520080603: 1876 The version that Linuxulator emulates was changed from 2.4.2 1877 to 2.6.16. If you experience any problems with Linux binaries 1878 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1879 if it fixes the problem contact emulation mailing list. 1880 188120080525: 1882 ISDN4BSD (I4B) was removed from the src tree. You may need to 1883 update a your kernel configuration and remove relevant entries. 1884 188520080509: 1886 I have checked in code to support multiple routing tables. 1887 See the man pages setfib(1) and setfib(2). 1888 This is a hopefully backwards compatible version, 1889 but to make use of it you need to compile your kernel 1890 with options ROUTETABLES=2 (or more up to 16). 1891 189220080420: 1893 The 802.11 wireless support was redone to enable multi-bss 1894 operation on devices that are capable. The underlying device 1895 is no longer used directly but instead wlanX devices are 1896 cloned with ifconfig. This requires changes to rc.conf files. 1897 For example, change: 1898 ifconfig_ath0="WPA DHCP" 1899 to 1900 wlans_ath0=wlan0 1901 ifconfig_wlan0="WPA DHCP" 1902 see rc.conf(5) for more details. In addition, mergemaster of 1903 /etc/rc.d is highly recommended. Simultaneous update of userland 1904 and kernel wouldn't hurt either. 1905 1906 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1907 modules were merged into the base wlan module. All references 1908 to these modules (e.g. in kernel config files) must be removed. 1909 191020080408: 1911 psm(4) has gained write(2) support in native operation level. 1912 Arbitrary commands can be written to /dev/psm%d and status can 1913 be read back from it. Therefore, an application is responsible 1914 for status validation and error recovery. It is a no-op in 1915 other operation levels. 1916 191720080312: 1918 Support for KSE threading has been removed from the kernel. To 1919 run legacy applications linked against KSE libmap.conf may 1920 be used. The following libmap.conf may be used to ensure 1921 compatibility with any prior release: 1922 1923 libpthread.so.1 libthr.so.1 1924 libpthread.so.2 libthr.so.2 1925 libkse.so.3 libthr.so.3 1926 192720080301: 1928 The layout of struct vmspace has changed. This affects libkvm 1929 and any executables that link against libkvm and use the 1930 kvm_getprocs() function. In particular, but not exclusively, 1931 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1932 The effects are minimal, but it's advisable to upgrade world 1933 nonetheless. 1934 193520080229: 1936 The latest em driver no longer has support in it for the 1937 82575 adapter, this is now moved to the igb driver. The 1938 split was done to make new features that are incompatible 1939 with older hardware easier to do. 1940 194120080220: 1942 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1943 likewise the kernel option is now GEOM_LINUX_LVM. 1944 194520080211: 1946 The default NFS mount mode has changed from UDP to TCP for 1947 increased reliability. If you rely on (insecurely) NFS 1948 mounting across a firewall you may need to update your 1949 firewall rules. 1950 195120080208: 1952 Belatedly note the addition of m_collapse for compacting 1953 mbuf chains. 1954 195520080126: 1956 The fts(3) structures have been changed to use adequate 1957 integer types for their members and so to be able to cope 1958 with huge file trees. The old fts(3) ABI is preserved 1959 through symbol versioning in libc, so third-party binaries 1960 using fts(3) should still work, although they will not take 1961 advantage of the extended types. At the same time, some 1962 third-party software might fail to build after this change 1963 due to unportable assumptions made in its source code about 1964 fts(3) structure members. Such software should be fixed 1965 by its vendor or, in the worst case, in the ports tree. 1966 FreeBSD_version 800015 marks this change for the unlikely 1967 case that a portable fix is impossible. 1968 196920080123: 1970 To upgrade to -current after this date, you must be running 1971 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1972 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1973 197420071128: 1975 The ADAPTIVE_GIANT kernel option has been retired because its 1976 functionality is the default now. 1977 197820071118: 1979 The AT keyboard emulation of sunkbd(4) has been turned on 1980 by default. In order to make the special symbols of the Sun 1981 keyboards driven by sunkbd(4) work under X these now have 1982 to be configured the same way as Sun USB keyboards driven 1983 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1984 1985 Option "XkbLayout" "us" 1986 Option "XkbRules" "xorg" 1987 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1988 198920071024: 1990 It has been decided that it is desirable to provide ABI 1991 backwards compatibility to the FreeBSD 4/5/6 versions of the 1992 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1993 broken with the introduction of PCI domain support (see the 1994 20070930 entry). Unfortunately, this required the ABI of 1995 PCIOCGETCONF to be broken again in order to be able to 1996 provide backwards compatibility to the old version of that 1997 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1998 again. As for prominent ports this affects neither pciutils 1999 nor xorg-server this time, the hal port needs to be rebuilt 2000 however. 2001 200220071020: 2003 The misnamed kthread_create() and friends have been renamed 2004 to kproc_create() etc. Many of the callers already 2005 used kproc_start().. 2006 I will return kthread_create() and friends in a while 2007 with implementations that actually create threads, not procs. 2008 Renaming corresponds with version 800002. 2009 201020071010: 2011 RELENG_7 branched. 2012 2013COMMON ITEMS: 2014 2015 General Notes 2016 ------------- 2017 Avoid using make -j when upgrading. While generally safe, there are 2018 sometimes problems using -j to upgrade. If your upgrade fails with 2019 -j, please try again without -j. From time to time in the past there 2020 have been problems using -j with buildworld and/or installworld. This 2021 is especially true when upgrading between "distant" versions (eg one 2022 that cross a major release boundary or several minor releases, or when 2023 several months have passed on the -current branch). 2024 2025 Sometimes, obscure build problems are the result of environment 2026 poisoning. This can happen because the make utility reads its 2027 environment when searching for values for global variables. To run 2028 your build attempts in an "environmental clean room", prefix all make 2029 commands with 'env -i '. See the env(1) manual page for more details. 2030 2031 When upgrading from one major version to another it is generally best 2032 to upgrade to the latest code in the currently installed branch first, 2033 then do an upgrade to the new branch. This is the best-tested upgrade 2034 path, and has the highest probability of being successful. Please try 2035 this approach before reporting problems with a major version upgrade. 2036 2037 When upgrading a live system, having a root shell around before 2038 installing anything can help undo problems. Not having a root shell 2039 around can lead to problems if pam has changed too much from your 2040 starting point to allow continued authentication after the upgrade. 2041 2042 ZFS notes 2043 --------- 2044 When upgrading the boot ZFS pool to a new version, always follow 2045 these two steps: 2046 2047 1.) recompile and reinstall the ZFS boot loader and boot block 2048 (this is part of "make buildworld" and "make installworld") 2049 2050 2.) update the ZFS boot block on your boot drive 2051 2052 The following example updates the ZFS boot block on the first 2053 partition (freebsd-boot) of a GPT partitioned drive ad0: 2054 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2055 2056 Non-boot pools do not need these updates. 2057 2058 To build a kernel 2059 ----------------- 2060 If you are updating from a prior version of FreeBSD (even one just 2061 a few days old), you should follow this procedure. It is the most 2062 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2063 2064 make kernel-toolchain 2065 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2066 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2067 2068 To test a kernel once 2069 --------------------- 2070 If you just want to boot a kernel once (because you are not sure 2071 if it works, or if you want to boot a known bad kernel to provide 2072 debugging information) run 2073 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2074 nextboot -k testkernel 2075 2076 To just build a kernel when you know that it won't mess you up 2077 -------------------------------------------------------------- 2078 This assumes you are already running a CURRENT system. Replace 2079 ${arch} with the architecture of your machine (e.g. "i386", 2080 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2081 2082 cd src/sys/${arch}/conf 2083 config KERNEL_NAME_HERE 2084 cd ../compile/KERNEL_NAME_HERE 2085 make depend 2086 make 2087 make install 2088 2089 If this fails, go to the "To build a kernel" section. 2090 2091 To rebuild everything and install it on the current system. 2092 ----------------------------------------------------------- 2093 # Note: sometimes if you are running current you gotta do more than 2094 # is listed here if you are upgrading from a really old current. 2095 2096 <make sure you have good level 0 dumps> 2097 make buildworld 2098 make kernel KERNCONF=YOUR_KERNEL_HERE 2099 [1] 2100 <reboot in single user> [3] 2101 mergemaster -p [5] 2102 make installworld 2103 mergemaster -i [4] 2104 make delete-old [6] 2105 <reboot> 2106 2107 To cross-install current onto a separate partition 2108 -------------------------------------------------- 2109 # In this approach we use a separate partition to hold 2110 # current's root, 'usr', and 'var' directories. A partition 2111 # holding "/", "/usr" and "/var" should be about 2GB in 2112 # size. 2113 2114 <make sure you have good level 0 dumps> 2115 <boot into -stable> 2116 make buildworld 2117 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2118 <maybe newfs current's root partition> 2119 <mount current's root partition on directory ${CURRENT_ROOT}> 2120 make installworld DESTDIR=${CURRENT_ROOT} 2121 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2122 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2123 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2124 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2125 <reboot into current> 2126 <do a "native" rebuild/install as described in the previous section> 2127 <maybe install compatibility libraries from ports/misc/compat*> 2128 <reboot> 2129 2130 2131 To upgrade in-place from stable to current 2132 ---------------------------------------------- 2133 <make sure you have good level 0 dumps> 2134 make buildworld [9] 2135 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2136 [1] 2137 <reboot in single user> [3] 2138 mergemaster -p [5] 2139 make installworld 2140 mergemaster -i [4] 2141 make delete-old [6] 2142 <reboot> 2143 2144 Make sure that you've read the UPDATING file to understand the 2145 tweaks to various things you need. At this point in the life 2146 cycle of current, things change often and you are on your own 2147 to cope. The defaults can also change, so please read ALL of 2148 the UPDATING entries. 2149 2150 Also, if you are tracking -current, you must be subscribed to 2151 freebsd-current@freebsd.org. Make sure that before you update 2152 your sources that you have read and understood all the recent 2153 messages there. If in doubt, please track -stable which has 2154 much fewer pitfalls. 2155 2156 [1] If you have third party modules, such as vmware, you 2157 should disable them at this point so they don't crash your 2158 system on reboot. 2159 2160 [3] From the bootblocks, boot -s, and then do 2161 fsck -p 2162 mount -u / 2163 mount -a 2164 cd src 2165 adjkerntz -i # if CMOS is wall time 2166 Also, when doing a major release upgrade, it is required that 2167 you boot into single user mode to do the installworld. 2168 2169 [4] Note: This step is non-optional. Failure to do this step 2170 can result in a significant reduction in the functionality of the 2171 system. Attempting to do it by hand is not recommended and those 2172 that pursue this avenue should read this file carefully, as well 2173 as the archives of freebsd-current and freebsd-hackers mailing lists 2174 for potential gotchas. The -U option is also useful to consider. 2175 See mergemaster(8) for more information. 2176 2177 [5] Usually this step is a noop. However, from time to time 2178 you may need to do this if you get unknown user in the following 2179 step. It never hurts to do it all the time. You may need to 2180 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2181 install) after the buildworld before this step if you last updated 2182 from current before 20130425 or from -stable before 20130430. 2183 2184 [6] This only deletes old files and directories. Old libraries 2185 can be deleted by "make delete-old-libs", but you have to make 2186 sure that no program is using those libraries anymore. 2187 2188 [8] In order to have a kernel that can run the 4.x binaries needed to 2189 do an installworld, you must include the COMPAT_FREEBSD4 option in 2190 your kernel. Failure to do so may leave you with a system that is 2191 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2192 required to run the 5.x binaries on more recent kernels. And so on 2193 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2194 2195 Make sure that you merge any new devices from GENERIC since the 2196 last time you updated your kernel config file. 2197 2198 [9] When checking out sources, you must include the -P flag to have 2199 cvs prune empty directories. 2200 2201 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2202 "?=" instead of the "=" assignment operator, so that buildworld can 2203 override the CPUTYPE if it needs to. 2204 2205 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2206 not on the command line, or in /etc/make.conf. buildworld will 2207 warn if it is improperly defined. 2208FORMAT: 2209 2210This file contains a list, in reverse chronological order, of major 2211breakages in tracking -current. It is not guaranteed to be a complete 2212list of such breakages, and only contains entries since October 10, 2007. 2213If you need to see UPDATING entries from before that date, you will need 2214to fetch an UPDATING file from an older FreeBSD release. 2215 2216Copyright information: 2217 2218Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2219 2220Redistribution, publication, translation and use, with or without 2221modification, in full or in part, in any form or format of this 2222document are permitted without further permission from the author. 2223 2224THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2225IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2226WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2227DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2228INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2229(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2230SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2231HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2232STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2233IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2234POSSIBILITY OF SUCH DAMAGE. 2235 2236Contact Warner Losh if you have any questions about your use of 2237this document. 2238 2239$FreeBSD: releng/10.2/UPDATING 286901 2015-08-18 19:30:17Z delphij $ 2240