UPDATING revision 289997
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 1920151026: 20 NTP has been upgraded to 4.2.8p4. 21 2220151025: 23 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 24 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 25 and devel/kyua to version 0.20+ and adjust any calling code to work 26 with Kyuafile and kyua. 27 2820150823: 29 The polarity of Pulse Per Second (PPS) capture events with the 30 uart(4) driver has been corrected. Prior to this change the PPS 31 "assert" event corresponded to the trailing edge of a positive PPS 32 pulse and the "clear" event was the leading edge of the next pulse. 33 34 As the width of a PPS pulse in a typical GPS receiver is on the 35 order of 1 millisecond, most users will not notice any significant 36 difference with this change. 37 38 Anyone who has compensated for the historical polarity reversal by 39 configuring a negative offset equal to the pulse width will need to 40 remove that workaround. 41 4220150822: 43 From legacy ata(4) driver was removed support for SATA controllers 44 supported by more functional drivers ahci(4), siis(4) and mvs(4). 45 Kernel modules ataahci and ataadaptec were removed completely, 46 replaced by ahci and mvs modules respectively. 47 4820150813: 49 10.2-RELEASE. 50 5120150731: 52 As ZFS requires more kernel stack pages than is the default on some 53 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 54 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 55 56 Please consider using 'options KSTACK_PAGES=X' where X is greater 57 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 58 5920150703: 60 The default Unbound configuration now enables remote control 61 using a local socket. Users who have already enabled the 62 local_unbound service should regenerate their configuration 63 by running "service local_unbound setup" as root. 64 6520150624: 66 An additional fix for the issue described in the 20150614 sendmail 67 entry below has been been committed in revision 284786. 68 6920150615: 70 The fix for the issue described in the 20150614 sendmail entry 71 below has been been committed in revision 284485. The work 72 around described in that entry is no longer needed unless the 73 default setting is overridden by a confDH_PARAMETERS configuration 74 setting of '5' or pointing to a 512 bit DH parameter file. 75 7620150614: 77 The import of openssl to address the FreeBSD-SA-15:10.openssl 78 security advisory includes a change which rejects handshakes 79 with DH parameters below 768 bits. sendmail releases prior 80 to 8.15.2 (not yet released), defaulted to a 512 bit 81 DH parameter setting for client connections. To work around 82 this interoperability, sendmail can be configured to use a 83 2048 bit DH parameter by: 84 85 1. Edit /etc/mail/`hostname`.mc 86 2. If a setting for confDH_PARAMETERS does not exist or 87 exists and is set to a string beginning with '5', 88 replace it with '2'. 89 3. If a setting for confDH_PARAMETERS exists and is set to 90 a file path, create a new file with: 91 openssl dhparam -out /path/to/file 2048 92 4. Rebuild the .cf file: 93 cd /etc/mail/; make; make install 94 5. Restart sendmail: 95 cd /etc/mail/; make restart 96 97 A sendmail patch is coming, at which time this file will be 98 updated. 99 10020150601: 101 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 102 defined in symlink(7); previously symlinks were silently ignored. 103 10420150430: 105 The const qualifier has been removed from iconv(3) to comply with 106 POSIX. The ports tree is aware of this from r384038 onwards. 107 10820141215: 109 At svn r275807, The default linux compat kernel ABI has been adjusted 110 to 2.6.18 in support of the linux-c6 compat ports infrastructure 111 update. If you wish to continue using the linux-f10 compat ports, 112 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 113 encouraged to update their linux-compat packages to linux-c6 during 114 their next update cycle. 115 116 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 117 11820141205: 119 pjdfstest has been integrated into kyua as an opt-in test suite. 120 Please see share/doc/pjdfstest/README for a more details on how to 121 execute it. 122 12320141118: 124 10.1-RELEASE. 125 12620140904: 127 The ofwfb driver, used to provide a graphics console on PowerPC when 128 using vt(4), no longer allows mmap() of all of physical memory. This 129 will prevent Xorg on PowerPC with some ATI graphics cards from 130 initializing properly unless x11-servers/xorg-server is updated to 131 1.12.4_8 or newer. 132 13320140831: 134 The libatf-c and libatf-c++ major versions were downgraded to 0 and 135 1 respectively to match the upstream numbers. They were out of 136 sync because, when they were originally added to FreeBSD, the 137 upstream versions were not respected. These libraries are private 138 and not yet built by default, so renumbering them should be a 139 non-issue. However, unclean source trees will yield broken test 140 programs once the operator executes "make delete-old-libs" after a 141 "make installworld". 142 143 Additionally, the atf-sh binary was made private by moving it into 144 /usr/libexec/. Already-built shell test programs will keep the 145 path to the old binary so they will break after "make delete-old" 146 is run. 147 148 If you are using WITH_TESTS=yes (not the default), wipe the object 149 tree and rebuild from scratch to prevent spurious test failures. 150 This is only needed once: the misnumbered libraries and misplaced 151 binaries have been added to OptionalObsoleteFiles.inc so they will 152 be removed during a clean upgrade. 153 15420140814: 155 The ixgbe tunables now match their sysctl counterparts, for example: 156 hw.ixgbe.enable_aim => hw.ix.enable_aim 157 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 158 15920140801: 160 The NFSv4.1 server committed by r269398 changes the internal 161 function call interfaces used between the NFS and krpc modules. 162 As such, __FreeBSD_version was bumped. 163 16420140729: 165 The default unbound configuration has been modified to address 166 issues with reverse lookups on networks that use private 167 address ranges. If you use the local_unbound service, run 168 "service local_unbound setup" as root to regenerate your 169 configuration, then "service local_unbound reload" to load the 170 new configuration. 171 17220140717: 173 It is no longer necessary to include the dwarf version in your DEBUG 174 options in your kernel config file. The bug that required it to be 175 placed in the config file has bene fixed. DEBUG should now just 176 contain -g. The build system will automatically update things 177 to do the right thing. 178 17920140715: 180 Several ABI breaking changes were merged to CTL and new iSCSI code. 181 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 182 iscsictl need to be rebuilt to work with a new kernel. 183 18420140708: 185 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 186 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 187 which differs from the behaviour controlled by this knob.) 188 18920140608: 190 On i386 and amd64 systems, the onifconsole flag is now set by default 191 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 192 as a login TTY if it is set in the bootloader as an active kernel 193 console. No changes in behavior should result otherwise. To revert to 194 the previous behavior, set ttyu0 to "off" in /etc/ttys. 195 19620140512: 197 Clang and llvm have been upgraded to 3.4.1 release. 198 19920140321: 200 Clang and llvm have been upgraded to 3.4 release. 201 20220140306: 203 If a Makefile in a tests/ directory was auto-generating a Kyuafile 204 instead of providing an explicit one, this would prevent such 205 Makefile from providing its own Kyuafile in the future during 206 NO_CLEAN builds. This has been fixed in the Makefiles but manual 207 intervention is needed to clean an objdir if you use NO_CLEAN: 208 # find /usr/obj -name Kyuafile | xargs rm -f 209 21020140303: 211 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 212 capability mode support. Please note that enabling the feature in 213 kernel is still highly recommended. 214 21520140227: 216 OpenSSH is now built with sandbox support, and will use sandbox as 217 the default privilege separation method. This requires Capsicum 218 capability mode support in kernel. 219 22020140216: 221 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 222 been deprecated and will not be part of FreeBSD 11.0 and later 223 releases. If you use this driver, please consider switching to 224 the nfe(4) driver instead. 225 22620140120: 227 10.0-RELEASE. 228 22920131216: 230 The behavior of gss_pseudo_random() for the krb5 mechanism 231 has changed, for applications requesting a longer random string 232 than produced by the underlying enctype's pseudo-random() function. 233 In particular, the random string produced from a session key of 234 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 235 be different at the 17th octet and later, after this change. 236 The counter used in the PRF+ construction is now encoded as a 237 big-endian integer in accordance with RFC 4402. 238 __FreeBSD_version is bumped to 1000701. 239 24020131108: 241 The WITHOUT_ATF build knob has been removed and its functionality 242 has been subsumed into the more generic WITHOUT_TESTS. If you were 243 using the former to disable the build of the ATF libraries, you 244 should change your settings to use the latter. 245 24620131031: 247 The default version of mtree is nmtree which is obtained from 248 NetBSD. The output is generally the same, but may vary 249 slightly. If you found you need identical output adding 250 "-F freebsd9" to the command line should do the trick. For the 251 time being, the old mtree is available as fmtree. 252 25320131014: 254 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 255 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 256 1.1.4_8 and verify bsdyml not linked in, before running "make 257 delete-old-libs": 258 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 259 or 260 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 261 26220131010: 263 The rc.d/jail script has been updated to support jail(8) 264 configuration file. The "jail_<jname>_*" rc.conf(5) variables 265 for per-jail configuration are automatically converted to 266 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 267 This is transparently backward compatible. See below about some 268 incompatibilities and rc.conf(5) manual page for more details. 269 270 These variables are now deprecated in favor of jail(8) configuration 271 file. One can use "rc.d/jail config <jname>" command to generate 272 a jail(8) configuration file in /var/run/jail.<jname>.conf without 273 running the jail(8) utility. The default pathname of the 274 configuration file is /etc/jail.conf and can be specified by 275 using $jail_conf or $jail_<jname>_conf variables. 276 277 Please note that jail_devfs_ruleset accepts an integer at 278 this moment. Please consider to rewrite the ruleset name 279 with an integer. 280 28120130930: 282 BIND has been removed from the base system. If all you need 283 is a local resolver, simply enable and start the local_unbound 284 service instead. Otherwise, several versions of BIND are 285 available in the ports tree. The dns/bind99 port is one example. 286 287 With this change, nslookup(1) and dig(1) are no longer in the base 288 system. Users should instead use host(1) and drill(1) which are 289 in the base system. Alternatively, nslookup and dig can 290 be obtained by installing the dns/bind-tools port. 291 29220130916: 293 With the addition of unbound(8), a new unbound user is now 294 required during installworld. "mergemaster -p" can be used to 295 add the user prior to installworld, as documented in the handbook. 296 29720130911: 298 OpenSSH is now built with DNSSEC support, and will by default 299 silently trust signed SSHFP records. This can be controlled with 300 the VerifyHostKeyDNS client configuration setting. DNSSEC support 301 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 302 30320130906: 304 The GNU Compiler Collection and C++ standard library (libstdc++) 305 are no longer built by default on platforms where clang is the system 306 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 307 options in src.conf. 308 30920130905: 310 The PROCDESC kernel option is now part of the GENERIC kernel 311 configuration and is required for the rwhod(8) to work. 312 If you are using custom kernel configuration, you should include 313 'options PROCDESC'. 314 31520130905: 316 The API and ABI related to the Capsicum framework was modified 317 in backward incompatible way. The userland libraries and programs 318 have to be recompiled to work with the new kernel. This includes the 319 following libraries and programs, but the whole buildworld is 320 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 321 kdump, procstat, rwho, rwhod, uniq. 322 32320130903: 324 AES-NI intrinsic support has been added to gcc. The AES-NI module 325 has been updated to use this support. A new gcc is required to build 326 the aesni module on both i386 and amd64. 327 32820130821: 329 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 330 Thus "device padlock_rng" and "device rdrand_rng" should be 331 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 332 33320130813: 334 WITH_ICONV has been split into two feature sets. WITH_ICONV now 335 enables just the iconv* functionality and is now on by default. 336 WITH_LIBICONV_COMPAT enables the libiconv api and link time 337 compatability. Set WITHOUT_ICONV to build the old way. 338 If you have been using WITH_ICONV before, you will very likely 339 need to turn on WITH_LIBICONV_COMPAT. 340 34120130806: 342 INVARIANTS option now enables DEBUG for code with OpenSolaris and 343 Illumos origin, including ZFS. If you have INVARIANTS in your 344 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 345 explicitly. 346 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 347 locks if WITNESS option was set. Because that generated a lot of 348 witness(9) reports and all of them were believed to be false 349 positives, this is no longer done. New option OPENSOLARIS_WITNESS 350 can be used to achieve the previous behavior. 351 35220130806: 353 Timer values in IPv6 data structures now use time_uptime instead 354 of time_second. Although this is not a user-visible functional 355 change, userland utilities which directly use them---ndp(8), 356 rtadvd(8), and rtsold(8) in the base system---need to be updated 357 to r253970 or later. 358 35920130802: 360 find -delete can now delete the pathnames given as arguments, 361 instead of only files found below them or if the pathname did 362 not contain any slashes. Formerly, the following error message 363 would result: 364 365 find: -delete: <path>: relative path potentially not safe 366 367 Deleting the pathnames given as arguments can be prevented 368 without error messages using -mindepth 1 or by changing 369 directory and passing "." as argument to find. This works in the 370 old as well as the new version of find. 371 37220130726: 373 Behavior of devfs rules path matching has been changed. 374 Pattern is now always matched against fully qualified devfs 375 path and slash characters must be explicitly matched by 376 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 377 subdirectories must be reviewed. 378 37920130716: 380 The default ARM ABI has changed to the ARM EABI. The old ABI is 381 incompatible with the ARM EABI and all programs and modules will 382 need to be rebuilt to work with a new kernel. 383 384 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 385 386 NOTE: Support for the old ABI will be removed in the future and 387 users are advised to upgrade. 388 38920130709: 390 pkg_install has been disconnected from the build if you really need it 391 you should add WITH_PKGTOOLS in your src.conf(5). 392 39320130709: 394 Most of network statistics structures were changed to be able 395 keep 64-bits counters. Thus all tools, that work with networking 396 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 397 39820130629: 399 Fix targets that run multiple make's to use && rather than ; 400 so that subsequent steps depend on success of previous. 401 402 NOTE: if building 'universe' with -j* on stable/8 or stable/9 403 it would be better to start the build using bmake, to avoid 404 overloading the machine. 405 40620130618: 407 Fix a bug that allowed a tracing process (e.g. gdb) to write 408 to a memory-mapped file in the traced process's address space 409 even if neither the traced process nor the tracing process had 410 write access to that file. 411 41220130615: 413 CVS has been removed from the base system. An exact copy 414 of the code is available from the devel/cvs port. 415 41620130613: 417 Some people report the following error after the switch to bmake: 418 419 make: illegal option -- J 420 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 421 ... 422 *** [buildworld] Error code 2 423 424 this likely due to an old instance of make in 425 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 426 which src/Makefile will use that blindly, if it exists, so if 427 you see the above error: 428 429 rm -rf `make -V MAKEPATH` 430 431 should resolve it. 432 43320130516: 434 Use bmake by default. 435 Whereas before one could choose to build with bmake via 436 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 437 make. The goal is to remove these knobs for 10-RELEASE. 438 439 It is worth noting that bmake (like gmake) treats the command 440 line as the unit of failure, rather than statements within the 441 command line. Thus '(cd some/where && dosomething)' is safer 442 than 'cd some/where; dosomething'. The '()' allows consistent 443 behavior in parallel build. 444 44520130429: 446 Fix a bug that allows NFS clients to issue READDIR on files. 447 44820130426: 449 The WITHOUT_IDEA option has been removed because 450 the IDEA patent expired. 451 45220130426: 453 The sysctl which controls TRIM support under ZFS has been renamed 454 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 455 enabled by default. 456 45720130425: 458 The mergemaster command now uses the default MAKEOBJDIRPREFIX 459 rather than creating it's own in the temporary directory in 460 order allow access to bootstrapped versions of tools such as 461 install and mtree. When upgrading from version of FreeBSD where 462 the install command does not support -l, you will need to 463 install a new mergemaster command if mergemaster -p is required. 464 This can be accomplished with the command (cd src/usr.sbin/mergemaster 465 && make install). 466 46720130404: 468 Legacy ATA stack, disabled and replaced by new CAM-based one since 469 FreeBSD 9.0, completely removed from the sources. Kernel modules 470 atadisk and atapi*, user-level tools atacontrol and burncd are 471 removed. Kernel option `options ATA_CAM` is now permanently enabled 472 and removed. 473 47420130319: 475 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 476 and socketpair(2). Software, in particular Kerberos, may 477 automatically detect and use these during building. The resulting 478 binaries will not work on older kernels. 479 48020130308: 481 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 482 information, see the respective 20130304 entry). 483 48420130304: 485 Recent commits to callout(9) changed the size of struct callout, 486 so the KBI is probably heavily disturbed. Also, some functions 487 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 488 by macros. Every kernel module using it won't load, so rebuild 489 is requested. 490 491 The ctl device has been re-enabled in GENERIC for i386 and amd64, 492 but does not initialize by default (because of the new CTL_DISABLE 493 option) to save memory. To re-enable it, remove the CTL_DISABLE 494 option from the kernel config file or set kern.cam.ctl.disable=0 495 in /boot/loader.conf. 496 49720130301: 498 The ctl device has been disabled in GENERIC for i386 and amd64. 499 This was done due to the extra memory being allocated at system 500 initialisation time by the ctl driver which was only used if 501 a CAM target device was created. This makes a FreeBSD system 502 unusable on 128MB or less of RAM. 503 50420130208: 505 A new compression method (lz4) has been merged to -HEAD. Please 506 refer to zpool-features(7) for more information. 507 508 Please refer to the "ZFS notes" section of this file for information 509 on upgrading boot ZFS pools. 510 51120130129: 512 A BSD-licensed patch(1) variant has been added and is installed 513 as bsdpatch, being the GNU version the default patch. 514 To inverse the logic and use the BSD-licensed one as default, 515 while having the GNU version installed as gnupatch, rebuild 516 and install world with the WITH_BSD_PATCH knob set. 517 51820130121: 519 Due to the use of the new -l option to install(1) during build 520 and install, you must take care not to directly set the INSTALL 521 make variable in your /etc/make.conf, /etc/src.conf, or on the 522 command line. If you wish to use the -C flag for all installs 523 you may be able to add INSTALL+=-C to /etc/make.conf or 524 /etc/src.conf. 525 52620130118: 527 The install(1) option -M has changed meaning and now takes an 528 argument that is a file or path to append logs to. In the 529 unlikely event that -M was the last option on the command line 530 and the command line contained at least two files and a target 531 directory the first file will have logs appended to it. The -M 532 option served little practical purpose in the last decade so its 533 use is expected to be extremely rare. 534 53520121223: 536 After switching to Clang as the default compiler some users of ZFS 537 on i386 systems started to experience stack overflow kernel panics. 538 Please consider using 'options KSTACK_PAGES=4' in such configurations. 539 54020121222: 541 GEOM_LABEL now mangles label names read from file system metadata. 542 Mangling affect labels containing spaces, non-printable characters, 543 '%' or '"'. Device names in /etc/fstab and other places may need to 544 be updated. 545 54620121217: 547 By default, only the 10 most recent kernel dumps will be saved. To 548 restore the previous behaviour (no limit on the number of kernel dumps 549 stored in the dump directory) add the following line to /etc/rc.conf: 550 551 savecore_flags="" 552 55320121201: 554 With the addition of auditdistd(8), a new auditdistd user is now 555 required during installworld. "mergemaster -p" can be used to 556 add the user prior to installworld, as documented in the handbook. 557 55820121117: 559 The sin6_scope_id member variable in struct sockaddr_in6 is now 560 filled by the kernel before passing the structure to the userland via 561 sysctl or routing socket. This means the KAME-specific embedded scope 562 id in sin6_addr.s6_addr[2] is always cleared in userland application. 563 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 564 __FreeBSD_version is bumped to 1000025. 565 56620121105: 567 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 568 This means that the world and kernel will be compiled with clang 569 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 570 and /usr/bin/cpp. To disable this behavior and revert to building 571 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 572 of current may need to bootstrap WITHOUT_CLANG first if the clang 573 build fails (its compatibility window doesn't extend to the 9 stable 574 branch point). 575 57620121102: 577 The IPFIREWALL_FORWARD kernel option has been removed. Its 578 functionality now turned on by default. 579 58020121023: 581 The ZERO_COPY_SOCKET kernel option has been removed and 582 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 583 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 584 mechanism which is not safe and may result in kernel crashes. 585 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 586 driver supports disposeable external page sized mbuf storage. 587 Proper replacements for both zero-copy mechanisms are under 588 consideration and will eventually lead to complete removal 589 of the two kernel options. 590 59120121023: 592 The IPv4 network stack has been converted to network byte 593 order. The following modules need to be recompiled together 594 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 595 pf(4), ipfw(4), ng_ipfw(4), stf(4). 596 59720121022: 598 Support for non-MPSAFE filesystems was removed from VFS. The 599 VFS_VERSION was bumped, all filesystem modules shall be 600 recompiled. 601 60220121018: 603 All the non-MPSAFE filesystems have been disconnected from 604 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 605 portalfs, smbfs, xfs. 606 60720121016: 608 The interface cloning API and ABI has changed. The following 609 modules need to be recompiled together with kernel: 610 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 611 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 612 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 613 61420121015: 615 The sdhci driver was split in two parts: sdhci (generic SD Host 616 Controller logic) and sdhci_pci (actual hardware driver). 617 No kernel config modifications are required, but if you 618 load sdhc as a module you must switch to sdhci_pci instead. 619 62020121014: 621 Import the FUSE kernel and userland support into base system. 622 62320121013: 624 The GNU sort(1) program has been removed since the BSD-licensed 625 sort(1) has been the default for quite some time and no serious 626 problems have been reported. The corresponding WITH_GNU_SORT 627 knob has also gone. 628 62920121006: 630 The pfil(9) API/ABI for AF_INET family has been changed. Packet 631 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 632 with new kernel. 633 63420121001: 635 The net80211(4) ABI has been changed to allow for improved driver 636 PS-POLL and power-save support. All wireless drivers need to be 637 recompiled to work with the new kernel. 638 63920120913: 640 The random(4) support for the VIA hardware random number 641 generator (`PADLOCK') is no longer enabled unconditionally. 642 Add the padlock_rng device in the custom kernel config if 643 needed. The GENERIC kernels on i386 and amd64 do include the 644 device, so the change only affects the custom kernel 645 configurations. 646 64720120908: 648 The pf(4) packet filter ABI has been changed. pfctl(8) and 649 snmp_pf module need to be recompiled to work with new kernel. 650 65120120828: 652 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 653 to -HEAD. Pools that have empty_bpobj in active state can not be 654 imported read-write with ZFS implementations that do not support 655 this feature. For more information read the zpool-features(5) 656 manual page. 657 65820120727: 659 The sparc64 ZFS loader has been changed to no longer try to auto- 660 detect ZFS providers based on diskN aliases but now requires these 661 to be explicitly listed in the OFW boot-device environment variable. 662 66320120712: 664 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 665 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 666 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 667 66820120712: 669 The following sysctls and tunables have been renamed for consistency 670 with other variables: 671 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 672 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 673 67420120628: 675 The sort utility has been replaced with BSD sort. For now, GNU sort 676 is also available as "gnusort" or the default can be set back to 677 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 678 installed as "bsdsort". 679 68020120611: 681 A new version of ZFS (pool version 5000) has been merged to -HEAD. 682 Starting with this version the old system of ZFS pool versioning 683 is superseded by "feature flags". This concept enables forward 684 compatibility against certain future changes in functionality of ZFS 685 pools. The first read-only compatible "feature flag" for ZFS pools 686 is named "com.delphix:async_destroy". For more information 687 read the new zpool-features(5) manual page. 688 Please refer to the "ZFS notes" section of this file for information 689 on upgrading boot ZFS pools. 690 69120120417: 692 The malloc(3) implementation embedded in libc now uses sources imported 693 as contrib/jemalloc. The most disruptive API change is to 694 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 695 delete it prior to installworld, and optionally re-create it using the 696 new format after rebooting. See malloc.conf(5) for details 697 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 698 NAMESPACE section). 699 70020120328: 701 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 702 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 703 now spelled mips. This is to aid compatibility with third-party 704 software that expects this naming scheme in uname(3). Little-endian 705 settings are unchanged. If you are updating a big-endian mips64 machine 706 from before this change, you may need to set MACHINE_ARCH=mips64 in 707 your environment before the new build system will recognize your machine. 708 70920120306: 710 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 711 platforms. 712 71320120229: 714 Now unix domain sockets behave "as expected" on nullfs(5). Previously 715 nullfs(5) did not pass through all behaviours to the underlying layer, 716 as a result if we bound to a socket on the lower layer we could connect 717 only to the lower path; if we bound to the upper layer we could connect 718 only to the upper path. The new behavior is one can connect to both the 719 lower and the upper paths regardless what layer path one binds to. 720 72120120211: 722 The getifaddrs upgrade path broken with 20111215 has been restored. 723 If you have upgraded in between 20111215 and 20120209 you need to 724 recompile libc again with your kernel. You still need to recompile 725 world to be able to configure CARP but this restriction already 726 comes from 20111215. 727 72820120114: 729 The set_rcvar() function has been removed from /etc/rc.subr. All 730 base and ports rc.d scripts have been updated, so if you have a 731 port installed with a script in /usr/local/etc/rc.d you can either 732 hand-edit the rcvar= line, or reinstall the port. 733 734 An easy way to handle the mass-update of /etc/rc.d: 735 rm /etc/rc.d/* && mergemaster -i 736 73720120109: 738 panic(9) now stops other CPUs in the SMP systems, disables interrupts 739 on the current CPU and prevents other threads from running. 740 This behavior can be reverted using the kern.stop_scheduler_on_panic 741 tunable/sysctl. 742 The new behavior can be incompatible with kern.sync_on_panic. 743 74420111215: 745 The carp(4) facility has been changed significantly. Configuration 746 of the CARP protocol via ifconfig(8) has changed, as well as format 747 of CARP events submitted to devd(8) has changed. See manual pages 748 for more information. The arpbalance feature of carp(4) is currently 749 not supported anymore. 750 751 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 752 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 753 need to be recompiled. 754 75520111122: 756 The acpi_wmi(4) status device /dev/wmistat has been renamed to 757 /dev/wmistat0. 758 75920111108: 760 The option VFS_ALLOW_NONMPSAFE option has been added in order to 761 explicitely support non-MPSAFE filesystems. 762 It is on by default for all supported platform at this present 763 time. 764 76520111101: 766 The broken amd(4) driver has been replaced with esp(4) in the amd64, 767 i386 and pc98 GENERIC kernel configuration files. 768 76920110930: 770 sysinstall has been removed 771 77220110923: 773 The stable/9 branch created in subversion. This corresponds to the 774 RELENG_9 branch in CVS. 775 77620110913: 777 This commit modifies vfs_register() so that it uses a hash 778 calculation to set vfc_typenum, which is enabled by default. 779 The first time a system is booted after this change, the 780 vfc_typenum values will change for all file systems. The 781 main effect of this is a change to the NFS server file handles 782 for file systems that use vfc_typenum in their fsid, such as ZFS. 783 It will, however, prevent vfc_typenum from changing when file 784 systems are loaded in a different order for subsequent reboots. 785 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 786 until you are ready to remount all NFS clients after a reboot. 787 78820110828: 789 Bump the shared library version numbers for libraries that 790 do not use symbol versioning, have changed the ABI compared 791 to stable/8 and which shared library version was not bumped. 792 Done as part of 9.0-RELEASE cycle. 793 79420110815: 795 During the merge of Capsicum features, the fget(9) KPI was modified. 796 This may require the rebuilding of out-of-tree device drivers -- 797 issues have been reported specifically with the nVidia device driver. 798 __FreeBSD_version is bumped to 900041. 799 800 Also, there is a period between 20110811 and 20110814 where the 801 special devices /dev/{stdin,stdout,stderr} did not work correctly. 802 Building world from a kernel during that window may not work. 803 80420110628: 805 The packet filter (pf) code has been updated to OpenBSD 4.5. 806 You need to update userland tools to be in sync with kernel. 807 This update breaks backward compatibility with earlier pfsync(4) 808 versions. Care must be taken when updating redundant firewall setups. 809 81020110608: 811 The following sysctls and tunables are retired on x86 platforms: 812 machdep.hlt_cpus 813 machdep.hlt_logical_cpus 814 The following sysctl is retired: 815 machdep.hyperthreading_allowed 816 The sysctls were supposed to provide a way to dynamically offline and 817 online selected CPUs on x86 platforms, but the implementation has not 818 been reliable especially with SCHED_ULE scheduler. 819 machdep.hyperthreading_allowed tunable is still available to ignore 820 hyperthreading CPUs at OS level. 821 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 822 where X is an APIC ID of a CPU. Be advised, though, that disabling 823 CPUs in non-uniform fashion will result in non-uniform topology and 824 may lead to sub-optimal system performance with SCHED_ULE, which is 825 a default scheduler. 826 82720110607: 828 cpumask_t type is retired and cpuset_t is used in order to describe 829 a mask of CPUs. 830 83120110531: 832 Changes to ifconfig(8) for dynamic address family detection mandate 833 that you are running a kernel of 20110525 or later. Make sure to 834 follow the update procedure to boot a new kernel before installing 835 world. 836 83720110513: 838 Support for sun4v architecture is officially dropped 839 84020110503: 841 Several KPI breaking changes have been committed to the mii(4) layer, 842 the PHY drivers and consequently some Ethernet drivers using mii(4). 843 This means that miibus.ko and the modules of the affected Ethernet 844 drivers need to be recompiled. 845 846 Note to kernel developers: Given that the OUI bit reversion problem 847 was fixed as part of these changes all mii(4) commits related to OUIs, 848 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 849 handling, no longer can be merged verbatim to stable/8 and previous 850 branches. 851 85220110430: 853 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 854 into their kernel configurations along with 'device pci'. 855 85620110427: 857 The default NFS client is now the new NFS client, so fstype "newnfs" 858 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 859 Although mounts via fstype "nfs" will usually work without userland 860 changes, it is recommended that the mount(8) and mount_nfs(8) 861 commands be rebuilt from sources and that a link to mount_nfs called 862 mount_oldnfs be created. The new client is compiled into the 863 kernel with "options NFSCL" and this is needed for diskless root 864 file systems. The GENERIC kernel configs have been changed to use 865 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 866 To use the regular/old client, you can "mount -t oldnfs ...". For 867 a diskless root file system, you must also include a line like: 868 869 vfs.root.mountfrom="oldnfs:" 870 871 in the boot/loader.conf on the root fs on the NFS server to make 872 a diskless root fs use the old client. 873 87420110424: 875 The GENERIC kernels for all architectures now default to the new 876 CAM-based ATA stack. It means that all legacy ATA drivers were 877 removed and replaced by respective CAM drivers. If you are using 878 ATA device names in /etc/fstab or other places, make sure to update 879 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 880 where 'Y's are the sequential numbers starting from zero for each type 881 in order of detection, unless configured otherwise with tunables, 882 see cam(4)). There will be symbolic links created in /dev/ to map 883 old adX devices to the respective adaY. They should provide basic 884 compatibility for file systems mounting in most cases, but they do 885 not support old user-level APIs and do not have respective providers 886 in GEOM. Consider using updated management tools with new device names. 887 888 It is possible to load devices ahci, ata, siis and mvs as modules, 889 but option ATA_CAM should remain in kernel configuration to make ata 890 module work as CAM driver supporting legacy ATA controllers. Device ata 891 still can be used in modular fashion (atacore + ...). Modules atadisk 892 and atapi* are not used and won't affect operation in ATA_CAM mode. 893 Note that to use CAM-based ATA kernel should include CAM devices 894 scbus, pass, da (or explicitly ada), cd and optionally others. All of 895 them are parts of the cam module. 896 897 ataraid(4) functionality is now supported by the RAID GEOM class. 898 To use it you can load geom_raid kernel module and use graid(8) tool 899 for management. Instead of /dev/arX device names, use /dev/raid/rX. 900 901 No kernel config options or code have been removed, so if a problem 902 arises, please report it and optionally revert to the old ATA stack. 903 In order to do it you can remove from the kernel config: 904 options ATA_CAM 905 device ahci 906 device mvs 907 device siis 908 , and instead add back: 909 device atadisk # ATA disk drives 910 device ataraid # ATA RAID drives 911 device atapicd # ATAPI CDROM drives 912 device atapifd # ATAPI floppy drives 913 device atapist # ATAPI tape drives 914 91520110423: 916 The default NFS server has been changed to the new server, which 917 was referred to as the experimental server. If you need to switch 918 back to the old NFS server, you must now put the "-o" option on 919 both the mountd and nfsd commands. This can be done using the 920 mountd_flags and nfs_server_flags rc.conf variables until an 921 update to the rc scripts is committed, which is coming soon. 922 92320110418: 924 The GNU Objective-C runtime library (libobjc), and other Objective-C 925 related components have been removed from the base system. If you 926 require an Objective-C library, please use one of the available ports. 927 92820110331: 929 ath(4) has been split into bus- and device- modules. if_ath contains 930 the HAL, the TX rate control and the network device code. if_ath_pci 931 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 932 contains the AHB glue. Users need to load both if_ath_pci and if_ath 933 in order to use ath on everything else. 934 935 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 936 need to load if_ath and if_ath_pci for ath(4) operation. 937 93820110314: 939 As part of the replacement of sysinstall, the process of building 940 release media has changed significantly. For details, please re-read 941 release(7), which has been updated to reflect the new build process. 942 94320110218: 944 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 945 is the last available version under GPLv2. It brings a number of new 946 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 947 4.1 and SSE 4.2), better support for powerpc64, a number of new 948 directives, and lots of other small improvements. See the ChangeLog 949 file in contrib/binutils for the full details. 950 95120110218: 952 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 953 compliant, and will now use half of hash for authentication. 954 This will break interoperability with all stacks (including all 955 actual FreeBSD versions) who implement 956 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 957 authentication). 958 The only workaround with such peers is to use another HMAC 959 algorithm for IPsec ("phase 2") authentication. 960 96120110207: 962 Remove the uio_yield prototype and symbol. This function has 963 been misnamed since it was introduced and should not be 964 globally exposed with this name. The equivalent functionality 965 is now available using kern_yield(curthread->td_user_pri). 966 The function remains undocumented. 967 96820110112: 969 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 970 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 971 for scalar sysctls is defined but disabled. Code that needs 972 UQUAD to pass the type checking that must compile on older 973 systems where the define is not present can check against 974 __FreeBSD_version >= 900030. 975 976 The system dialog(1) has been replaced with a new version previously 977 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 978 with the previous version, but the libdialog associated with it has 979 a largely incompatible API. As such, the original version of libdialog 980 will be kept temporarily as libodialog, until its base system consumers 981 are replaced or updated. Bump __FreeBSD_version to 900030. 982 98320110103: 984 If you are trying to run make universe on a -stable system, and you get 985 the following warning: 986 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 987 unknown. config(8) likely too old." 988 or something similar to it, then you must upgrade your -stable system 989 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 990 stable/8) or build the config from the latest stable/8 branch and 991 install it on your system. 992 993 Prior to this date, building a current universe on 8-stable system from 994 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 995 error in the first kernel build phase. A new config on those old 996 systems will fix that problem for older versions of -current. 997 99820101228: 999 The TCP stack has been modified to allow Khelp modules to interact with 1000 it via helper hook points and store per-connection data in the TCP 1001 control block. Bump __FreeBSD_version to 900029. User space tools that 1002 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1003 be recompiled. 1004 100520101114: 1006 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1007 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1008 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1009 to take advantage of it instead of using custom implementations. This 1010 means that these drivers now no longer unconditionally advertise 1011 support for flow control but only do so if flow control is a selected 1012 media option. This was implemented in the generic support that way in 1013 order to allow flow control to be switched on and off via ifconfig(8) 1014 with the PHY specific default to typically off in order to protect 1015 from unwanted effects. Consequently, if you used flow control with 1016 one of the above mentioned drivers you now need to explicitly enable 1017 it, for example via: 1018 ifconfig bge0 media auto mediaopt flowcontrol 1019 1020 Along with the above mentioned changes generic support for setting 1021 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1022 e1000phy(4) as well as ip1000phy(4) have been converted to take 1023 advantage of it. This means that these drivers now no longer take the 1024 link0 parameter for selecting master mode but the master media option 1025 has to be used instead, for example like in the following: 1026 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1027 1028 Selection of master mode now is also available with all other PHY 1029 drivers supporting 1000baseT. 1030 103120101111: 1032 The TCP stack has received a significant update to add support for 1033 modularised congestion control and generally improve the clarity of 1034 congestion control decisions. Bump __FreeBSD_version to 900025. User 1035 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1036 sockstat) need to be recompiled. 1037 103820101002: 1039 The man(1) utility has been replaced by a new version that no longer 1040 uses /etc/manpath.config. Please consult man.conf(5) for how to 1041 migrate local entries to the new format. 1042 104320100928: 1044 The copyright strings printed by login(1) and sshd(8) at the time of a 1045 new connection have been removed to follow other operating systems and 1046 upstream sshd. 1047 104820100915: 1049 A workaround for a fixed ld bug has been removed in kernel code, 1050 so make sure that your system ld is built from sources after 1051 revision 210245 from 2010-07-19 (r211583 if building head kernel 1052 on stable/8, r211584 for stable/7; both from 2010-08-21). 1053 A symptom of incorrect ld version is different addresses for 1054 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1055 105620100913: 1057 The $ipv6_prefer variable in rc.conf(5) has been split into 1058 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1059 1060 The $ip6addrctl_policy is a variable to choose a pre-defined 1061 address selection policy set by ip6addrctl(8). A value 1062 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1063 default is "AUTO". 1064 1065 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1066 flag (see an entry of 20090926) is set on an interface with no 1067 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1068 security reason. If you want IPv6 link-local address on all 1069 interfaces by default, set this to "YES". 1070 1071 The old ipv6_prefer="YES" is equivalent to 1072 ipv6_activate_all_interfaces="YES" and 1073 ip6addrctl_policy="ipv6_prefer". 1074 107520100913: 1076 DTrace has grown support for userland tracing. Due to this, DTrace is 1077 now i386 and amd64 only. 1078 dtruss(1) is now installed by default on those systems and a new 1079 kernel module is needed for userland tracing: fasttrap. 1080 No changes to your kernel config file are necessary to enable 1081 userland tracing, but you might consider adding 'STRIP=' and 1082 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1083 to have informative userland stack traces in DTrace (ustack). 1084 108520100725: 1086 The acpi_aiboost(4) driver has been removed in favor of the new 1087 aibs(4) driver. You should update your kernel configuration file. 1088 108920100722: 1090 BSD grep has been imported to the base system and it is built by 1091 default. It is completely BSD licensed, highly GNU-compatible, uses 1092 less memory than its GNU counterpart and has a small codebase. 1093 However, it is slower than its GNU counterpart, which is mostly 1094 noticeable for larger searches, for smaller ones it is measurable 1095 but not significant. The reason is complex, the most important factor 1096 is that we lack a modern and efficient regex library and GNU 1097 overcomes this by optimizing the searches internally. Future work 1098 on improving the regex performance is planned, for the meantime, 1099 users that need better performance, can build GNU grep instead by 1100 setting the WITH_GNU_GREP knob. 1101 110220100713: 1103 Due to the import of powerpc64 support, all existing powerpc kernel 1104 configuration files must be updated with a machine directive like this: 1105 machine powerpc powerpc 1106 1107 In addition, an updated config(8) is required to build powerpc kernels 1108 after this change. 1109 111020100713: 1111 A new version of ZFS (version 15) has been merged to -HEAD. 1112 This version uses a python library for the following subcommands: 1113 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1114 For full functionality of these commands the following port must 1115 be installed: sysutils/py-zfs 1116 111720100429: 1118 'vm_page's are now hashed by physical address to an array of mutexes. 1119 Currently this is only used to serialize access to hold_count. Over 1120 time the page queue mutex will be peeled away. This changes the size 1121 of pmap on every architecture. And requires all callers of vm_page_hold 1122 and vm_page_unhold to be updated. 1123 112420100402: 1125 WITH_CTF can now be specified in src.conf (not recommended, there 1126 are some problems with static executables), make.conf (would also 1127 affect ports which do not use GNU make and do not override the 1128 compile targets) or in the kernel config (via "makeoptions 1129 WITH_CTF=yes"). 1130 When WITH_CTF was specified there before this was silently ignored, 1131 so make sure that WITH_CTF is not used in places which could lead 1132 to unwanted behavior. 1133 113420100311: 1135 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1136 to allow 32-bit compatibility on non-x86 platforms. All kernel 1137 configurations on amd64 and ia64 platforms using these options must 1138 be modified accordingly. 1139 114020100113: 1141 The utmp user accounting database has been replaced with utmpx, 1142 the user accounting interface standardized by POSIX. 1143 Unfortunately the semantics of utmp and utmpx don't match, 1144 making it practically impossible to support both interfaces. 1145 The user accounting database is used by tools like finger(1), 1146 last(1), talk(1), w(1) and ac(8). 1147 1148 All applications in the base system use utmpx. This means only 1149 local binaries (e.g. from the ports tree) may still use these 1150 utmp database files. These applications must be rebuilt to make 1151 use of utmpx. 1152 1153 After the system has been upgraded, it is safe to remove the old 1154 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1155 assuming their contents is of no importance anymore. Old wtmp 1156 databases can only be used by last(1) and ac(8) after they have 1157 been converted to the new format using wtmpcvt(1). 1158 115920100108: 1160 Introduce the kernel thread "deadlock resolver" (which can be enabled 1161 via the DEADLKRES option, see NOTES for more details) and the 1162 sleepq_type() function for sleepqueues. 1163 116420091202: 1165 The rc.firewall and rc.firewall6 were unified, and 1166 rc.firewall6 and rc.d/ip6fw were removed. 1167 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1168 variables are obsoleted. Instead, the following new rc 1169 variables are added to rc.d/ipfw: 1170 1171 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1172 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1173 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1174 1175 The meanings correspond to the relevant IPv4 variables. 1176 117720091125: 1178 8.0-RELEASE. 1179 118020091113: 1181 The default terminal emulation for syscons(4) has been changed 1182 from cons25 to xterm on all platforms except pc98. This means 1183 that the /etc/ttys file needs to be updated to ensure correct 1184 operation of applications on the console. 1185 1186 The terminal emulation style can be toggled per window by using 1187 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1188 options can be used to change the compile-time default back to 1189 cons25. 1190 1191 To prevent graphical artifacts, make sure the TERM environment 1192 variable is set to match the terminal emulation that is being 1193 performed by syscons(4). 1194 119520091109: 1196 The layout of the structure ieee80211req_scan_result has changed. 1197 Applications that require wireless scan results (e.g. ifconfig(8)) 1198 from net80211 need to be recompiled. 1199 1200 Applications such as wpa_supplicant(8) may require a full world 1201 build without using NO_CLEAN in order to get synchronized with the 1202 new structure. 1203 120420091025: 1205 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1206 There's one kernel module for each firmware. Adding "device iwnfw" 1207 to the kernel configuration file means including all three firmware 1208 images inside the kernel. If you want to include just the one for 1209 your wireless card, use the devices iwn4965fw, iwn5000fw or 1210 iwn5150fw. 1211 121220090926: 1213 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1214 into rc.d/netif. The changes are the following: 1215 1216 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1217 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1218 Note that both variables need the "inet6" keyword at the head. 1219 1220 Do not set $ipv6_network_interfaces manually if you do not 1221 understand what you are doing. It is not needed in most cases. 1222 1223 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1224 they are obsolete. 1225 1226 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1227 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1228 1229 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1230 all configured interfaces have "inet6 accept_rtadv" in the 1231 $ifconfig_IF_ipv6. These are for backward compatibility. 1232 1233 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1234 functionality of interfaces with no corresponding 1235 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1236 and the default address selection policy of ip6addrctl(8) 1237 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1238 Note that if you want to configure IPv6 functionality on the 1239 disabled interfaces after boot, first you need to clear the flag by 1240 using ifconfig(8) like: 1241 1242 ifconfig em0 inet6 -ifdisabled 1243 1244 If YES, the default address selection policy is set as 1245 IPv6-preferred. 1246 1247 The default value of $ipv6_prefer is NO. 1248 1249 4. If your system need to receive Router Advertisement messages, 1250 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1251 scripts automatically invoke rtsol(8) when the interface becomes 1252 UP. The Router Advertisement messages are used for SLAAC 1253 (State-Less Address AutoConfiguration). 1254 125520090922: 1256 802.11s D3.03 support was committed. This is incompatible with the 1257 previous code, which was based on D3.0. 1258 125920090912: 1260 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1261 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1262 control whether accepting Router Advertisement messages or not. 1263 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1264 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1265 The ifconfig(8) utility now supports these flags. 1266 126720090910: 1268 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1269 mount(8) and -a option for df(1) to see them. 1270 127120090825: 1272 The old tunable hw.bus.devctl_disable has been superseded by 1273 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1274 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1275 is 1000. 1276 127720090813: 1278 Remove the option STOP_NMI. The default action is now to use NMI only 1279 for KDB via the newly introduced function stop_cpus_hard() and 1280 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1281 128220090803: 1283 The stable/8 branch created in subversion. This corresponds to the 1284 RELENG_8 branch in CVS. 1285 128620090719: 1287 Bump the shared library version numbers for all libraries that do not 1288 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1289 __FreeBSD_version to 800105. 1290 129120090714: 1292 Due to changes in the implementation of virtual network stack support, 1293 all network-related kernel modules must be recompiled. As this change 1294 breaks the ABI, bump __FreeBSD_version to 800104. 1295 129620090713: 1297 The TOE interface to the TCP syncache has been modified to remove 1298 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1299 The cxgb driver is the only TOE consumer affected by this change, and 1300 needs to be recompiled along with the kernel. As this change breaks 1301 the ABI, bump __FreeBSD_version to 800103. 1302 130320090712: 1304 Padding has been added to struct tcpcb, sackhint and tcpstat in 1305 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1306 maintaining the ABI. However, this change breaks the ABI, so bump 1307 __FreeBSD_version to 800102. User space tools that rely on the size of 1308 any of these structs (e.g. sockstat) need to be recompiled. 1309 131020090630: 1311 The NFS_LEGACYRPC option has been removed along with the old kernel 1312 RPC implementation that this option selected. Kernel configurations 1313 may need to be adjusted. 1314 131520090629: 1316 The network interface device nodes at /dev/net/<interface> have been 1317 removed. All ioctl operations can be performed the normal way using 1318 routing sockets. The kqueue functionality can generally be replaced 1319 with routing sockets. 1320 132120090628: 1322 The documentation from the FreeBSD Documentation Project (Handbook, 1323 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1324 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1325 132620090624: 1327 The ABI of various structures related to the SYSV IPC API have been 1328 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1329 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1330 800100. 1331 133220090622: 1333 Layout of struct vnet has changed as routing related variables were 1334 moved to their own Vimage module. Modules need to be recompiled. Bump 1335 __FreeBSD_version to 800099. 1336 133720090619: 1338 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1339 respectively. As long as no more than 16 groups per process are used, 1340 no changes should be visible. When more than 16 groups are used, old 1341 binaries may fail if they call getgroups() or getgrouplist() with 1342 statically sized storage. Recompiling will work around this, but 1343 applications should be modified to use dynamically allocated storage 1344 for group arrays as POSIX.1-2008 does not cap an implementation's 1345 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1346 1347 NFS and portalfs mounts may also be affected as the list of groups is 1348 truncated to 16. Users of NFS who use more than 16 groups, should 1349 take care that negative group permissions are not used on the exported 1350 file systems as they will not be reliable unless a GSSAPI based 1351 authentication method is used. 1352 135320090616: 1354 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1355 option compiles in the support for adaptive spinning for lockmgrs 1356 which want to enable it. The lockinit() function now accepts the flag 1357 LK_ADAPTIVE in order to make the lock object subject to adaptive 1358 spinning when both held in write and read mode. 1359 136020090613: 1361 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1362 changed. User applications that use this ioctl need to be rebuilt. 1363 136420090611: 1365 The layout of struct thread has changed. Kernel and modules need to 1366 be rebuilt. 1367 136820090608: 1369 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1370 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1371 137220090602: 1373 window(1) has been removed from the base system. It can now be 1374 installed from ports. The port is called misc/window. 1375 137620090601: 1377 The way we are storing and accessing `routing table' entries has 1378 changed. Programs reading the FIB, like netstat, need to be 1379 re-compiled. 1380 138120090601: 1382 A new netisr implementation has been added for FreeBSD 8. Network 1383 file system modules, such as igmp, ipdivert, and others, should be 1384 rebuilt. 1385 Bump __FreeBSD_version to 800096. 1386 138720090530: 1388 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1389 more valid. 1390 139120090530: 1392 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1393 Bump __FreeBSD_version to 800094. 1394 139520090529: 1396 Add mnt_xflag field to 'struct mount'. File system modules need to be 1397 rebuilt. 1398 Bump __FreeBSD_version to 800093. 1399 140020090528: 1401 The compiling option ADAPTIVE_SX has been retired while it has been 1402 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1403 The KPI for sx_init_flags() changes as accepting flags: 1404 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1405 been introduced in order to handle the reversed logic. 1406 Bump __FreeBSD_version to 800092. 1407 140820090527: 1409 Add support for hierarchical jails. Remove global securelevel. 1410 Bump __FreeBSD_version to 800091. 1411 141220090523: 1413 The layout of struct vnet_net has changed, therefore modules 1414 need to be rebuilt. 1415 Bump __FreeBSD_version to 800090. 1416 141720090523: 1418 The newly imported zic(8) produces a new format in the output. Please 1419 run tzsetup(8) to install the newly created data to /etc/localtime. 1420 142120090520: 1422 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1423 hw.usb.* and is now consistent again with previous releases. 1424 142520090520: 1426 802.11 monitor mode support was revised and driver api's were changed. 1427 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1428 of DLT_IEEE802_11. No user-visible data structures were changed but 1429 applications that use DLT_IEEE802_11 may require changes. 1430 Bump __FreeBSD_version to 800088. 1431 143220090430: 1433 The layout of the following structs has changed: sysctl_oid, 1434 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1435 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1436 panics may be experienced. World rebuild is required for 1437 correctly checking networking state from userland. 1438 Bump __FreeBSD_version to 800085. 1439 144020090429: 1441 MLDv2 and Source-Specific Multicast (SSM) have been merged 1442 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1443 The implementation of SSM within FreeBSD's IPv6 stack closely 1444 follows the IPv4 implementation. 1445 1446 For kernel developers: 1447 1448 * The most important changes are that the ip6_output() and 1449 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1450 and this lock has been downgraded to a non-recursive mutex. 1451 1452 * As with the changes to the IPv4 stack to support SSM, filtering 1453 of inbound multicast traffic must now be performed by transport 1454 protocols within the IPv6 stack. This does not apply to TCP and 1455 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1456 1457 * The KPIs used by IPv6 multicast are similar to those used by 1458 the IPv4 stack, with the following differences: 1459 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1460 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1461 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1462 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1463 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1464 for MLDv1 have an additional 'timer' argument which is used to 1465 jitter the initial membership report for the solicited-node 1466 multicast membership on-link. 1467 * This is not strictly needed for MLDv2, which already jitters 1468 its report transmissions. However, the 'timer' argument is 1469 preserved in case MLDv1 is active on the interface. 1470 1471 * The KAME linked-list based IPv6 membership implementation has 1472 been refactored to use a vector similar to that used by the IPv4 1473 stack. 1474 Code which maintains a list of its own multicast memberships 1475 internally, e.g. carp, has been updated to reflect the new 1476 semantics. 1477 1478 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1479 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1480 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1481 implementation constraint which needs to be addressed in HEAD. 1482 1483 For application developers: 1484 1485 * The changes are broadly similar to those made for the IPv4 1486 stack. 1487 1488 * The use of IPv4 and IPv6 multicast socket options on the same 1489 socket, using mapped addresses, HAS NOT been tested or supported. 1490 1491 * There are a number of issues with the implementation of various 1492 IPv6 multicast APIs which need to be resolved in the API surface 1493 before the implementation is fully compatible with KAME userland 1494 use, and these are mostly to do with interface index treatment. 1495 1496 * The literature available discusses the use of either the delta / ASM 1497 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1498 using setsourcefilter(3)/getsourcefilter(3). For more information 1499 please refer to RFC 3768, 'Socket Interface Extensions for 1500 Multicast Source Filters'. 1501 1502 * Applications which use the published RFC 3678 APIs should be fine. 1503 1504 For systems administrators: 1505 1506 * The mtest(8) utility has been refactored to support IPv6, in 1507 addition to IPv4. Interface addresses are no longer accepted 1508 as arguments, their names must be used instead. The utility 1509 will map the interface name to its first IPv4 address as 1510 returned by getifaddrs(3). 1511 1512 * The ifmcstat(8) utility has also been updated to print the MLDv2 1513 endpoint state and source filter lists via sysctl(3). 1514 1515 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1516 loopback of IPv6 multicast datagrams by default; it defaults to 1 1517 to preserve the existing behaviour. Disabling multicast loopback is 1518 recommended for optimal system performance. 1519 1520 * The IPv6 MROUTING code has been changed to examine this sysctl 1521 instead of attempting to perform a group lookup before looping 1522 back forwarded datagrams. 1523 1524 Bump __FreeBSD_version to 800084. 1525 152620090422: 1527 Implement low-level Bluetooth HCI API. 1528 Bump __FreeBSD_version to 800083. 1529 153020090419: 1531 The layout of struct malloc_type, used by modules to register new 1532 memory allocation types, has changed. Most modules will need to 1533 be rebuilt or panics may be experienced. 1534 Bump __FreeBSD_version to 800081. 1535 153620090415: 1537 Anticipate overflowing inp_flags - add inp_flags2. 1538 This changes most offsets in inpcb, so checking v4 connection 1539 state will require a world rebuild. 1540 Bump __FreeBSD_version to 800080. 1541 154220090415: 1543 Add an llentry to struct route and struct route_in6. Modules 1544 embedding a struct route will need to be recompiled. 1545 Bump __FreeBSD_version to 800079. 1546 154720090414: 1548 The size of rt_metrics_lite and by extension rtentry has changed. 1549 Networking administration apps will need to be recompiled. 1550 The route command now supports show as an alias for get, weighting 1551 of routes, sticky and nostick flags to alter the behavior of stateful 1552 load balancing. 1553 Bump __FreeBSD_version to 800078. 1554 155520090408: 1556 Do not use Giant for kbdmux(4) locking. This is wrong and 1557 apparently causing more problems than it solves. This will 1558 re-open the issue where interrupt handlers may race with 1559 kbdmux(4) in polling mode. Typical symptoms include (but 1560 not limited to) duplicated and/or missing characters when 1561 low level console functions (such as gets) are used while 1562 interrupts are enabled (for example geli password prompt, 1563 mountroot prompt etc.). Disabling kbdmux(4) may help. 1564 156520090407: 1566 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1567 kernel modules referencing any of the above need to be recompiled. 1568 Bump __FreeBSD_version to 800075. 1569 157020090320: 1571 GEOM_PART has become the default partition slicer for storage devices, 1572 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1573 introduces some changes: 1574 1575 MSDOS/EBR: the devices created from MSDOS extended partition entries 1576 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1577 to devices with offset-based names. fstabs may need to be modified. 1578 1579 BSD: the "geometry does not match label" warning is harmless in most 1580 cases but it points to problems in file system misalignment with 1581 disk geometry. The "c" partition is now implicit, covers the whole 1582 top-level drive and cannot be (mis)used by users. 1583 1584 General: Kernel dumps are now not allowed to be written to devices 1585 whose partition types indicate they are meant to be used for file 1586 systems (or, in case of MSDOS partitions, as something else than 1587 the "386BSD" type). 1588 1589 Most of these changes date approximately from 200812. 1590 159120090319: 1592 The uscanner(4) driver has been removed from the kernel. This follows 1593 Linux removing theirs in 2.6 and making libusb the default interface 1594 (supported by sane). 1595 159620090319: 1597 The multicast forwarding code has been cleaned up. netstat(1) 1598 only relies on KVM now for printing bandwidth upcall meters. 1599 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1600 ip6_mroute_mod respectively. The config(5) options for statically 1601 compiling this code remain the same, i.e. 'options MROUTING'. 1602 160320090315: 1604 Support for the IFF_NEEDSGIANT network interface flag has been 1605 removed, which means that non-MPSAFE network device drivers are no 1606 longer supported. In particular, if_ar, if_sr, and network device 1607 drivers from the old (legacy) USB stack can no longer be built or 1608 used. 1609 161020090313: 1611 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1612 a bunch of new language catalog files have also been added. 1613 This means that some common libc messages are now localized and 1614 they depend on the LC_MESSAGES environmental variable. 1615 161620090313: 1617 The k8temp(4) driver has been renamed to amdtemp(4) since 1618 support for Family 10 and Family 11 CPU families was added. 1619 162020090309: 1621 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1622 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1623 1624 For kernel developers, the most important changes are that the 1625 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1626 and this lock has been downgraded to a non-recursive mutex. 1627 1628 Transport protocols (UDP, Raw IP) are now responsible for filtering 1629 inbound multicast traffic according to group membership and source 1630 filters. The imo_multicast_filter() KPI exists for this purpose. 1631 Transports which do not use multicast (SCTP, TCP) already reject 1632 multicast by default. Forwarding and receive performance may improve 1633 as a mutex acquisition is no longer needed in the ip_input() 1634 low-level input path. in_addmulti() and in_delmulti() are shimmed 1635 to new KPIs which exist to support SSM in-kernel. 1636 1637 For application developers, it is recommended that loopback of 1638 multicast datagrams be disabled for best performance, as this 1639 will still cause the lock to be taken for each looped-back 1640 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1641 be tuned to 0 to disable loopback by default; it defaults to 1 1642 to preserve the existing behaviour. 1643 1644 For systems administrators, to obtain best performance with 1645 multicast reception and multiple groups, it is always recommended 1646 that a card with a suitably precise hash filter is used. Hash 1647 collisions will still result in the lock being taken within the 1648 transport protocol input path to check group membership. 1649 1650 If deploying FreeBSD in an environment with IGMP snooping switches, 1651 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1652 enabled; this forces 224.0.0.0/24 group membership to be announced 1653 via IGMP. 1654 1655 The size of 'struct igmpstat' has changed; netstat needs to be 1656 recompiled to reflect this. 1657 Bump __FreeBSD_version to 800070. 1658 165920090309: 1660 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1661 updated to use it. This requires a buildworld/installworld in order to 1662 update the library and dependencies (usbconfig, etc). Its advisable to 1663 rebuild all ports which uses libusb. More specific directions are given 1664 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1665 libusb are no longer required and can be removed. 1666 166720090302: 1668 A workaround is committed to allow the creation of System V shared 1669 memory segment of size > 2 GB on the 64-bit architectures. 1670 Due to a limitation of the existing ABI, the shm_segsz member 1671 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1672 wrong for large segments. Note that limits must be explicitly 1673 raised to allow such segments to be created. 1674 167520090301: 1676 The layout of struct ifnet has changed, requiring a rebuild of all 1677 network device driver modules. 1678 167920090227: 1680 The /dev handling for the new USB stack has changed, a 1681 buildworld/installworld is required for libusb20. 1682 168320090223: 1684 The new USB2 stack has now been permanently moved in and all kernel and 1685 module names reverted to their previous values (eg, usb, ehci, ohci, 1686 ums, ...). The old usb stack can be compiled in by prefixing the name 1687 with the letter 'o', the old usb modules have been removed. 1688 Updating entry 20090216 for xorg and 20090215 for libmap may still 1689 apply. 1690 169120090217: 1692 The rc.conf(5) option if_up_delay has been renamed to 1693 defaultroute_delay to better reflect its purpose. If you have 1694 customized this setting in /etc/rc.conf you need to update it to 1695 use the new name. 1696 169720090216: 1698 xorg 7.4 wants to configure its input devices via hald which does not 1699 yet work with USB2. If the keyboard/mouse does not work in xorg then 1700 add 1701 Option "AllowEmptyInput" "off" 1702 to your ServerLayout section. This will cause X to use the configured 1703 kbd and mouse sections from your xorg.conf. 1704 170520090215: 1706 The GENERIC kernels for all architectures now default to the new USB2 1707 stack. No kernel config options or code have been removed so if a 1708 problem arises please report it and optionally revert to the old USB 1709 stack. If you are loading USB kernel modules or have a custom kernel 1710 that includes GENERIC then ensure that usb names are also changed over, 1711 eg uftdi -> usb2_serial_ftdi. 1712 1713 Older programs linked against the ports libusb 0.1 need to be 1714 redirected to the new stack's libusb20. /etc/libmap.conf can 1715 be used for this: 1716 # Map old usb library to new one for usb2 stack 1717 libusb-0.1.so.8 libusb20.so.1 1718 171920090209: 1720 All USB ethernet devices now attach as interfaces under the name ueN 1721 (eg. ue0). This is to provide a predictable name as vendors often 1722 change usb chipsets in a product without notice. 1723 172420090203: 1725 The ichsmb(4) driver has been changed to require SMBus slave 1726 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1727 All of the other SMBus controller drivers require left-justified 1728 slave addresses, so this change makes all the drivers provide the 1729 same interface. 1730 173120090201: 1732 INET6 statistics (struct ip6stat) was updated. 1733 netstat(1) needs to be recompiled. 1734 173520090119: 1736 NTFS has been removed from GENERIC kernel on amd64 to match 1737 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1738 will load ntfs.ko module automatically when NTFS support is 1739 actually needed, unless ntfs.ko is not installed or security 1740 level prohibits loading kernel modules. If either is the case, 1741 "options NTFS" has to be added into kernel config. 1742 174320090115: 1744 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1745 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1746 800061. User space tools that rely on the size of struct tcpcb in 1747 tcp_var.h (e.g. sockstat) need to be recompiled. 1748 174920081225: 1750 ng_tty(4) module updated to match the new TTY subsystem. 1751 Due to API change, user-level applications must be updated. 1752 New API support added to mpd5 CVS and expected to be present 1753 in next mpd5.3 release. 1754 175520081219: 1756 With __FreeBSD_version 800060 the makefs tool is part of 1757 the base system (it was a port). 1758 175920081216: 1760 The afdata and ifnet locks have been changed from mutexes to 1761 rwlocks, network modules will need to be re-compiled. 1762 176320081214: 1764 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1765 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1766 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1767 architecture and 40 bytes on 64-bit architecture. The userland 1768 applications "arp" and "ndp" have been updated accordingly. 1769 The output from "netstat -r" shows only routing entries and 1770 none of the L2 information. 1771 177220081130: 1773 __FreeBSD_version 800057 marks the switchover from the 1774 binary ath hal to source code. Users must add the line: 1775 1776 options AH_SUPPORT_AR5416 1777 1778 to their kernel config files when specifying: 1779 1780 device ath_hal 1781 1782 The ath_hal module no longer exists; the code is now compiled 1783 together with the driver in the ath module. It is now 1784 possible to tailor chip support (i.e. reduce the set of chips 1785 and thereby the code size); consult ath_hal(4) for details. 1786 178720081121: 1788 __FreeBSD_version 800054 adds memory barriers to 1789 <machine/atomic.h>, new interfaces to ifnet to facilitate 1790 multiple hardware transmit queues for cards that support 1791 them, and a lock-less ring-buffer implementation to 1792 enable drivers to more efficiently manage queueing of 1793 packets. 1794 179520081117: 1796 A new version of ZFS (version 13) has been merged to -HEAD. 1797 This version has zpool attribute "listsnapshots" off by 1798 default, which means "zfs list" does not show snapshots, 1799 and is the same as Solaris behavior. 1800 180120081028: 1802 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1803 180420081009: 1805 The uhci, ohci, ehci and slhci USB Host controller drivers have 1806 been put into separate modules. If you load the usb module 1807 separately through loader.conf you will need to load the 1808 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1809 controller add the following to loader.conf: 1810 1811 uhci_load="YES" 1812 ehci_load="YES" 1813 181420081009: 1815 The ABI used by the PMC toolset has changed. Please keep 1816 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1817 sync. 1818 181920081009: 1820 atapci kernel module now includes only generic PCI ATA 1821 driver. AHCI driver moved to ataahci kernel module. 1822 All vendor-specific code moved into separate kernel modules: 1823 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1824 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1825 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1826 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1827 182820080820: 1829 The TTY subsystem of the kernel has been replaced by a new 1830 implementation, which provides better scalability and an 1831 improved driver model. Most common drivers have been migrated to 1832 the new TTY subsystem, while others have not. The following 1833 drivers have not yet been ported to the new TTY layer: 1834 1835 PCI/ISA: 1836 cy, digi, rc, rp, sio 1837 1838 USB: 1839 ubser, ucycom 1840 1841 Line disciplines: 1842 ng_h4, ng_tty, ppp, sl, snp 1843 1844 Adding these drivers to your kernel configuration file shall 1845 cause compilation to fail. 1846 184720080818: 1848 ntpd has been upgraded to 4.2.4p5. 1849 185020080801: 1851 OpenSSH has been upgraded to 5.1p1. 1852 1853 For many years, FreeBSD's version of OpenSSH preferred DSA 1854 over RSA for host and user authentication keys. With this 1855 upgrade, we've switched to the vendor's default of RSA over 1856 DSA. This may cause upgraded clients to warn about unknown 1857 host keys even for previously known hosts. Users should 1858 follow the usual procedure for verifying host keys before 1859 accepting the RSA key. 1860 1861 This can be circumvented by setting the "HostKeyAlgorithms" 1862 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1863 command line. 1864 1865 Please note that the sequence of keys offered for 1866 authentication has been changed as well. You may want to 1867 specify IdentityFile in a different order to revert this 1868 behavior. 1869 187020080713: 1871 The sio(4) driver has been removed from the i386 and amd64 1872 kernel configuration files. This means uart(4) is now the 1873 default serial port driver on those platforms as well. 1874 1875 To prevent collisions with the sio(4) driver, the uart(4) driver 1876 uses different names for its device nodes. This means the 1877 onboard serial port will now most likely be called "ttyu0" 1878 instead of "ttyd0". You may need to reconfigure applications to 1879 use the new device names. 1880 1881 When using the serial port as a boot console, be sure to update 1882 /boot/device.hints and /etc/ttys before booting the new kernel. 1883 If you forget to do so, you can still manually specify the hints 1884 at the loader prompt: 1885 1886 set hint.uart.0.at="isa" 1887 set hint.uart.0.port="0x3F8" 1888 set hint.uart.0.flags="0x10" 1889 set hint.uart.0.irq="4" 1890 boot -s 1891 189220080609: 1893 The gpt(8) utility has been removed. Use gpart(8) to partition 1894 disks instead. 1895 189620080603: 1897 The version that Linuxulator emulates was changed from 2.4.2 1898 to 2.6.16. If you experience any problems with Linux binaries 1899 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1900 if it fixes the problem contact emulation mailing list. 1901 190220080525: 1903 ISDN4BSD (I4B) was removed from the src tree. You may need to 1904 update a your kernel configuration and remove relevant entries. 1905 190620080509: 1907 I have checked in code to support multiple routing tables. 1908 See the man pages setfib(1) and setfib(2). 1909 This is a hopefully backwards compatible version, 1910 but to make use of it you need to compile your kernel 1911 with options ROUTETABLES=2 (or more up to 16). 1912 191320080420: 1914 The 802.11 wireless support was redone to enable multi-bss 1915 operation on devices that are capable. The underlying device 1916 is no longer used directly but instead wlanX devices are 1917 cloned with ifconfig. This requires changes to rc.conf files. 1918 For example, change: 1919 ifconfig_ath0="WPA DHCP" 1920 to 1921 wlans_ath0=wlan0 1922 ifconfig_wlan0="WPA DHCP" 1923 see rc.conf(5) for more details. In addition, mergemaster of 1924 /etc/rc.d is highly recommended. Simultaneous update of userland 1925 and kernel wouldn't hurt either. 1926 1927 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1928 modules were merged into the base wlan module. All references 1929 to these modules (e.g. in kernel config files) must be removed. 1930 193120080408: 1932 psm(4) has gained write(2) support in native operation level. 1933 Arbitrary commands can be written to /dev/psm%d and status can 1934 be read back from it. Therefore, an application is responsible 1935 for status validation and error recovery. It is a no-op in 1936 other operation levels. 1937 193820080312: 1939 Support for KSE threading has been removed from the kernel. To 1940 run legacy applications linked against KSE libmap.conf may 1941 be used. The following libmap.conf may be used to ensure 1942 compatibility with any prior release: 1943 1944 libpthread.so.1 libthr.so.1 1945 libpthread.so.2 libthr.so.2 1946 libkse.so.3 libthr.so.3 1947 194820080301: 1949 The layout of struct vmspace has changed. This affects libkvm 1950 and any executables that link against libkvm and use the 1951 kvm_getprocs() function. In particular, but not exclusively, 1952 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1953 The effects are minimal, but it's advisable to upgrade world 1954 nonetheless. 1955 195620080229: 1957 The latest em driver no longer has support in it for the 1958 82575 adapter, this is now moved to the igb driver. The 1959 split was done to make new features that are incompatible 1960 with older hardware easier to do. 1961 196220080220: 1963 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1964 likewise the kernel option is now GEOM_LINUX_LVM. 1965 196620080211: 1967 The default NFS mount mode has changed from UDP to TCP for 1968 increased reliability. If you rely on (insecurely) NFS 1969 mounting across a firewall you may need to update your 1970 firewall rules. 1971 197220080208: 1973 Belatedly note the addition of m_collapse for compacting 1974 mbuf chains. 1975 197620080126: 1977 The fts(3) structures have been changed to use adequate 1978 integer types for their members and so to be able to cope 1979 with huge file trees. The old fts(3) ABI is preserved 1980 through symbol versioning in libc, so third-party binaries 1981 using fts(3) should still work, although they will not take 1982 advantage of the extended types. At the same time, some 1983 third-party software might fail to build after this change 1984 due to unportable assumptions made in its source code about 1985 fts(3) structure members. Such software should be fixed 1986 by its vendor or, in the worst case, in the ports tree. 1987 FreeBSD_version 800015 marks this change for the unlikely 1988 case that a portable fix is impossible. 1989 199020080123: 1991 To upgrade to -current after this date, you must be running 1992 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1993 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1994 199520071128: 1996 The ADAPTIVE_GIANT kernel option has been retired because its 1997 functionality is the default now. 1998 199920071118: 2000 The AT keyboard emulation of sunkbd(4) has been turned on 2001 by default. In order to make the special symbols of the Sun 2002 keyboards driven by sunkbd(4) work under X these now have 2003 to be configured the same way as Sun USB keyboards driven 2004 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2005 2006 Option "XkbLayout" "us" 2007 Option "XkbRules" "xorg" 2008 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2009 201020071024: 2011 It has been decided that it is desirable to provide ABI 2012 backwards compatibility to the FreeBSD 4/5/6 versions of the 2013 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2014 broken with the introduction of PCI domain support (see the 2015 20070930 entry). Unfortunately, this required the ABI of 2016 PCIOCGETCONF to be broken again in order to be able to 2017 provide backwards compatibility to the old version of that 2018 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2019 again. As for prominent ports this affects neither pciutils 2020 nor xorg-server this time, the hal port needs to be rebuilt 2021 however. 2022 202320071020: 2024 The misnamed kthread_create() and friends have been renamed 2025 to kproc_create() etc. Many of the callers already 2026 used kproc_start().. 2027 I will return kthread_create() and friends in a while 2028 with implementations that actually create threads, not procs. 2029 Renaming corresponds with version 800002. 2030 203120071010: 2032 RELENG_7 branched. 2033 2034COMMON ITEMS: 2035 2036 General Notes 2037 ------------- 2038 Avoid using make -j when upgrading. While generally safe, there are 2039 sometimes problems using -j to upgrade. If your upgrade fails with 2040 -j, please try again without -j. From time to time in the past there 2041 have been problems using -j with buildworld and/or installworld. This 2042 is especially true when upgrading between "distant" versions (eg one 2043 that cross a major release boundary or several minor releases, or when 2044 several months have passed on the -current branch). 2045 2046 Sometimes, obscure build problems are the result of environment 2047 poisoning. This can happen because the make utility reads its 2048 environment when searching for values for global variables. To run 2049 your build attempts in an "environmental clean room", prefix all make 2050 commands with 'env -i '. See the env(1) manual page for more details. 2051 2052 When upgrading from one major version to another it is generally best 2053 to upgrade to the latest code in the currently installed branch first, 2054 then do an upgrade to the new branch. This is the best-tested upgrade 2055 path, and has the highest probability of being successful. Please try 2056 this approach before reporting problems with a major version upgrade. 2057 2058 When upgrading a live system, having a root shell around before 2059 installing anything can help undo problems. Not having a root shell 2060 around can lead to problems if pam has changed too much from your 2061 starting point to allow continued authentication after the upgrade. 2062 2063 ZFS notes 2064 --------- 2065 When upgrading the boot ZFS pool to a new version, always follow 2066 these two steps: 2067 2068 1.) recompile and reinstall the ZFS boot loader and boot block 2069 (this is part of "make buildworld" and "make installworld") 2070 2071 2.) update the ZFS boot block on your boot drive 2072 2073 The following example updates the ZFS boot block on the first 2074 partition (freebsd-boot) of a GPT partitioned drive ad0: 2075 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2076 2077 Non-boot pools do not need these updates. 2078 2079 To build a kernel 2080 ----------------- 2081 If you are updating from a prior version of FreeBSD (even one just 2082 a few days old), you should follow this procedure. It is the most 2083 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2084 2085 make kernel-toolchain 2086 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2087 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2088 2089 To test a kernel once 2090 --------------------- 2091 If you just want to boot a kernel once (because you are not sure 2092 if it works, or if you want to boot a known bad kernel to provide 2093 debugging information) run 2094 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2095 nextboot -k testkernel 2096 2097 To just build a kernel when you know that it won't mess you up 2098 -------------------------------------------------------------- 2099 This assumes you are already running a CURRENT system. Replace 2100 ${arch} with the architecture of your machine (e.g. "i386", 2101 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2102 2103 cd src/sys/${arch}/conf 2104 config KERNEL_NAME_HERE 2105 cd ../compile/KERNEL_NAME_HERE 2106 make depend 2107 make 2108 make install 2109 2110 If this fails, go to the "To build a kernel" section. 2111 2112 To rebuild everything and install it on the current system. 2113 ----------------------------------------------------------- 2114 # Note: sometimes if you are running current you gotta do more than 2115 # is listed here if you are upgrading from a really old current. 2116 2117 <make sure you have good level 0 dumps> 2118 make buildworld 2119 make kernel KERNCONF=YOUR_KERNEL_HERE 2120 [1] 2121 <reboot in single user> [3] 2122 mergemaster -p [5] 2123 make installworld 2124 mergemaster -i [4] 2125 make delete-old [6] 2126 <reboot> 2127 2128 To cross-install current onto a separate partition 2129 -------------------------------------------------- 2130 # In this approach we use a separate partition to hold 2131 # current's root, 'usr', and 'var' directories. A partition 2132 # holding "/", "/usr" and "/var" should be about 2GB in 2133 # size. 2134 2135 <make sure you have good level 0 dumps> 2136 <boot into -stable> 2137 make buildworld 2138 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2139 <maybe newfs current's root partition> 2140 <mount current's root partition on directory ${CURRENT_ROOT}> 2141 make installworld DESTDIR=${CURRENT_ROOT} 2142 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2143 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2144 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2145 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2146 <reboot into current> 2147 <do a "native" rebuild/install as described in the previous section> 2148 <maybe install compatibility libraries from ports/misc/compat*> 2149 <reboot> 2150 2151 2152 To upgrade in-place from stable to current 2153 ---------------------------------------------- 2154 <make sure you have good level 0 dumps> 2155 make buildworld [9] 2156 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2157 [1] 2158 <reboot in single user> [3] 2159 mergemaster -p [5] 2160 make installworld 2161 mergemaster -i [4] 2162 make delete-old [6] 2163 <reboot> 2164 2165 Make sure that you've read the UPDATING file to understand the 2166 tweaks to various things you need. At this point in the life 2167 cycle of current, things change often and you are on your own 2168 to cope. The defaults can also change, so please read ALL of 2169 the UPDATING entries. 2170 2171 Also, if you are tracking -current, you must be subscribed to 2172 freebsd-current@freebsd.org. Make sure that before you update 2173 your sources that you have read and understood all the recent 2174 messages there. If in doubt, please track -stable which has 2175 much fewer pitfalls. 2176 2177 [1] If you have third party modules, such as vmware, you 2178 should disable them at this point so they don't crash your 2179 system on reboot. 2180 2181 [3] From the bootblocks, boot -s, and then do 2182 fsck -p 2183 mount -u / 2184 mount -a 2185 cd src 2186 adjkerntz -i # if CMOS is wall time 2187 Also, when doing a major release upgrade, it is required that 2188 you boot into single user mode to do the installworld. 2189 2190 [4] Note: This step is non-optional. Failure to do this step 2191 can result in a significant reduction in the functionality of the 2192 system. Attempting to do it by hand is not recommended and those 2193 that pursue this avenue should read this file carefully, as well 2194 as the archives of freebsd-current and freebsd-hackers mailing lists 2195 for potential gotchas. The -U option is also useful to consider. 2196 See mergemaster(8) for more information. 2197 2198 [5] Usually this step is a noop. However, from time to time 2199 you may need to do this if you get unknown user in the following 2200 step. It never hurts to do it all the time. You may need to 2201 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2202 install) after the buildworld before this step if you last updated 2203 from current before 20130425 or from -stable before 20130430. 2204 2205 [6] This only deletes old files and directories. Old libraries 2206 can be deleted by "make delete-old-libs", but you have to make 2207 sure that no program is using those libraries anymore. 2208 2209 [8] In order to have a kernel that can run the 4.x binaries needed to 2210 do an installworld, you must include the COMPAT_FREEBSD4 option in 2211 your kernel. Failure to do so may leave you with a system that is 2212 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2213 required to run the 5.x binaries on more recent kernels. And so on 2214 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2215 2216 Make sure that you merge any new devices from GENERIC since the 2217 last time you updated your kernel config file. 2218 2219 [9] When checking out sources, you must include the -P flag to have 2220 cvs prune empty directories. 2221 2222 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2223 "?=" instead of the "=" assignment operator, so that buildworld can 2224 override the CPUTYPE if it needs to. 2225 2226 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2227 not on the command line, or in /etc/make.conf. buildworld will 2228 warn if it is improperly defined. 2229FORMAT: 2230 2231This file contains a list, in reverse chronological order, of major 2232breakages in tracking -current. It is not guaranteed to be a complete 2233list of such breakages, and only contains entries since October 10, 2007. 2234If you need to see UPDATING entries from before that date, you will need 2235to fetch an UPDATING file from an older FreeBSD release. 2236 2237Copyright information: 2238 2239Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2240 2241Redistribution, publication, translation and use, with or without 2242modification, in full or in part, in any form or format of this 2243document are permitted without further permission from the author. 2244 2245THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2246IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2247WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2248DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2249INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2250(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2251SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2252HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2253STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2254IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2255POSSIBILITY OF SUCH DAMAGE. 2256 2257Contact Warner Losh if you have any questions about your use of 2258this document. 2259 2260$FreeBSD: stable/10/UPDATING 289997 2015-10-26 11:35:40Z glebius $ 2261