UPDATING revision 287037
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 1920150823: 20 The polarity of Pulse Per Second (PPS) capture events with the 21 uart(4) driver has been corrected. Prior to this change the PPS 22 "assert" event corresponded to the trailing edge of a positive PPS 23 pulse and the "clear" event was the leading edge of the next pulse. 24 25 As the width of a PPS pulse in a typical GPS receiver is on the 26 order of 1 millisecond, most users will not notice any significant 27 difference with this change. 28 29 Anyone who has compensated for the historical polarity reversal by 30 configuring a negative offset equal to the pulse width will need to 31 remove that workaround. 32 3320150822: 34 From legacy ata(4) driver was removed support for SATA controllers 35 supported by more functional drivers ahci(4), siis(4) and mvs(4). 36 Kernel modules ataahci and ataadaptec were removed completely, 37 replaced by ahci and mvs modules respectively. 38 3920150813: 40 10.2-RELEASE. 41 4220150731: 43 As ZFS requires more kernel stack pages than is the default on some 44 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 45 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 46 47 Please consider using 'options KSTACK_PAGES=X' where X is greater 48 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 49 5020150703: 51 The default Unbound configuration now enables remote control 52 using a local socket. Users who have already enabled the 53 local_unbound service should regenerate their configuration 54 by running "service local_unbound setup" as root. 55 5620150624: 57 An additional fix for the issue described in the 20150614 sendmail 58 entry below has been been committed in revision 284786. 59 6020150615: 61 The fix for the issue described in the 20150614 sendmail entry 62 below has been been committed in revision 284485. The work 63 around described in that entry is no longer needed unless the 64 default setting is overridden by a confDH_PARAMETERS configuration 65 setting of '5' or pointing to a 512 bit DH parameter file. 66 6720150614: 68 The import of openssl to address the FreeBSD-SA-15:10.openssl 69 security advisory includes a change which rejects handshakes 70 with DH parameters below 768 bits. sendmail releases prior 71 to 8.15.2 (not yet released), defaulted to a 512 bit 72 DH parameter setting for client connections. To work around 73 this interoperability, sendmail can be configured to use a 74 2048 bit DH parameter by: 75 76 1. Edit /etc/mail/`hostname`.mc 77 2. If a setting for confDH_PARAMETERS does not exist or 78 exists and is set to a string beginning with '5', 79 replace it with '2'. 80 3. If a setting for confDH_PARAMETERS exists and is set to 81 a file path, create a new file with: 82 openssl dhparam -out /path/to/file 2048 83 4. Rebuild the .cf file: 84 cd /etc/mail/; make; make install 85 5. Restart sendmail: 86 cd /etc/mail/; make restart 87 88 A sendmail patch is coming, at which time this file will be 89 updated. 90 9120150601: 92 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 93 defined in symlink(7); previously symlinks were silently ignored. 94 9520150430: 96 The const qualifier has been removed from iconv(3) to comply with 97 POSIX. The ports tree is aware of this from r384038 onwards. 98 9920141215: 100 At svn r275807, The default linux compat kernel ABI has been adjusted 101 to 2.6.18 in support of the linux-c6 compat ports infrastructure 102 update. If you wish to continue using the linux-f10 compat ports, 103 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 104 encouraged to update their linux-compat packages to linux-c6 during 105 their next update cycle. 106 107 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 108 10920141205: 110 pjdfstest has been integrated into kyua as an opt-in test suite. 111 Please see share/doc/pjdfstest/README for a more details on how to 112 execute it. 113 11420141118: 115 10.1-RELEASE. 116 11720140904: 118 The ofwfb driver, used to provide a graphics console on PowerPC when 119 using vt(4), no longer allows mmap() of all of physical memory. This 120 will prevent Xorg on PowerPC with some ATI graphics cards from 121 initializing properly unless x11-servers/xorg-server is updated to 122 1.12.4_8 or newer. 123 12420140831: 125 The libatf-c and libatf-c++ major versions were downgraded to 0 and 126 1 respectively to match the upstream numbers. They were out of 127 sync because, when they were originally added to FreeBSD, the 128 upstream versions were not respected. These libraries are private 129 and not yet built by default, so renumbering them should be a 130 non-issue. However, unclean source trees will yield broken test 131 programs once the operator executes "make delete-old-libs" after a 132 "make installworld". 133 134 Additionally, the atf-sh binary was made private by moving it into 135 /usr/libexec/. Already-built shell test programs will keep the 136 path to the old binary so they will break after "make delete-old" 137 is run. 138 139 If you are using WITH_TESTS=yes (not the default), wipe the object 140 tree and rebuild from scratch to prevent spurious test failures. 141 This is only needed once: the misnumbered libraries and misplaced 142 binaries have been added to OptionalObsoleteFiles.inc so they will 143 be removed during a clean upgrade. 144 14520140814: 146 The ixgbe tunables now match their sysctl counterparts, for example: 147 hw.ixgbe.enable_aim => hw.ix.enable_aim 148 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 149 15020140801: 151 The NFSv4.1 server committed by r269398 changes the internal 152 function call interfaces used between the NFS and krpc modules. 153 As such, __FreeBSD_version was bumped. 154 15520140729: 156 The default unbound configuration has been modified to address 157 issues with reverse lookups on networks that use private 158 address ranges. If you use the local_unbound service, run 159 "service local_unbound setup" as root to regenerate your 160 configuration, then "service local_unbound reload" to load the 161 new configuration. 162 16320140717: 164 It is no longer necessary to include the dwarf version in your DEBUG 165 options in your kernel config file. The bug that required it to be 166 placed in the config file has bene fixed. DEBUG should now just 167 contain -g. The build system will automatically update things 168 to do the right thing. 169 17020140715: 171 Several ABI breaking changes were merged to CTL and new iSCSI code. 172 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 173 iscsictl need to be rebuilt to work with a new kernel. 174 17520140708: 176 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 177 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 178 which differs from the behaviour controlled by this knob.) 179 18020140608: 181 On i386 and amd64 systems, the onifconsole flag is now set by default 182 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 183 as a login TTY if it is set in the bootloader as an active kernel 184 console. No changes in behavior should result otherwise. To revert to 185 the previous behavior, set ttyu0 to "off" in /etc/ttys. 186 18720140512: 188 Clang and llvm have been upgraded to 3.4.1 release. 189 19020140321: 191 Clang and llvm have been upgraded to 3.4 release. 192 19320140306: 194 If a Makefile in a tests/ directory was auto-generating a Kyuafile 195 instead of providing an explicit one, this would prevent such 196 Makefile from providing its own Kyuafile in the future during 197 NO_CLEAN builds. This has been fixed in the Makefiles but manual 198 intervention is needed to clean an objdir if you use NO_CLEAN: 199 # find /usr/obj -name Kyuafile | xargs rm -f 200 20120140303: 202 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 203 capability mode support. Please note that enabling the feature in 204 kernel is still highly recommended. 205 20620140227: 207 OpenSSH is now built with sandbox support, and will use sandbox as 208 the default privilege separation method. This requires Capsicum 209 capability mode support in kernel. 210 21120140216: 212 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 213 been deprecated and will not be part of FreeBSD 11.0 and later 214 releases. If you use this driver, please consider switching to 215 the nfe(4) driver instead. 216 21720140120: 218 10.0-RELEASE. 219 22020131216: 221 The behavior of gss_pseudo_random() for the krb5 mechanism 222 has changed, for applications requesting a longer random string 223 than produced by the underlying enctype's pseudo-random() function. 224 In particular, the random string produced from a session key of 225 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 226 be different at the 17th octet and later, after this change. 227 The counter used in the PRF+ construction is now encoded as a 228 big-endian integer in accordance with RFC 4402. 229 __FreeBSD_version is bumped to 1000701. 230 23120131108: 232 The WITHOUT_ATF build knob has been removed and its functionality 233 has been subsumed into the more generic WITHOUT_TESTS. If you were 234 using the former to disable the build of the ATF libraries, you 235 should change your settings to use the latter. 236 23720131031: 238 The default version of mtree is nmtree which is obtained from 239 NetBSD. The output is generally the same, but may vary 240 slightly. If you found you need identical output adding 241 "-F freebsd9" to the command line should do the trick. For the 242 time being, the old mtree is available as fmtree. 243 24420131014: 245 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 246 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 247 1.1.4_8 and verify bsdyml not linked in, before running "make 248 delete-old-libs": 249 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 250 or 251 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 252 25320131010: 254 The rc.d/jail script has been updated to support jail(8) 255 configuration file. The "jail_<jname>_*" rc.conf(5) variables 256 for per-jail configuration are automatically converted to 257 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 258 This is transparently backward compatible. See below about some 259 incompatibilities and rc.conf(5) manual page for more details. 260 261 These variables are now deprecated in favor of jail(8) configuration 262 file. One can use "rc.d/jail config <jname>" command to generate 263 a jail(8) configuration file in /var/run/jail.<jname>.conf without 264 running the jail(8) utility. The default pathname of the 265 configuration file is /etc/jail.conf and can be specified by 266 using $jail_conf or $jail_<jname>_conf variables. 267 268 Please note that jail_devfs_ruleset accepts an integer at 269 this moment. Please consider to rewrite the ruleset name 270 with an integer. 271 27220130930: 273 BIND has been removed from the base system. If all you need 274 is a local resolver, simply enable and start the local_unbound 275 service instead. Otherwise, several versions of BIND are 276 available in the ports tree. The dns/bind99 port is one example. 277 278 With this change, nslookup(1) and dig(1) are no longer in the base 279 system. Users should instead use host(1) and drill(1) which are 280 in the base system. Alternatively, nslookup and dig can 281 be obtained by installing the dns/bind-tools port. 282 28320130916: 284 With the addition of unbound(8), a new unbound user is now 285 required during installworld. "mergemaster -p" can be used to 286 add the user prior to installworld, as documented in the handbook. 287 28820130911: 289 OpenSSH is now built with DNSSEC support, and will by default 290 silently trust signed SSHFP records. This can be controlled with 291 the VerifyHostKeyDNS client configuration setting. DNSSEC support 292 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 293 29420130906: 295 The GNU Compiler Collection and C++ standard library (libstdc++) 296 are no longer built by default on platforms where clang is the system 297 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 298 options in src.conf. 299 30020130905: 301 The PROCDESC kernel option is now part of the GENERIC kernel 302 configuration and is required for the rwhod(8) to work. 303 If you are using custom kernel configuration, you should include 304 'options PROCDESC'. 305 30620130905: 307 The API and ABI related to the Capsicum framework was modified 308 in backward incompatible way. The userland libraries and programs 309 have to be recompiled to work with the new kernel. This includes the 310 following libraries and programs, but the whole buildworld is 311 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 312 kdump, procstat, rwho, rwhod, uniq. 313 31420130903: 315 AES-NI intrinsic support has been added to gcc. The AES-NI module 316 has been updated to use this support. A new gcc is required to build 317 the aesni module on both i386 and amd64. 318 31920130821: 320 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 321 Thus "device padlock_rng" and "device rdrand_rng" should be 322 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 323 32420130813: 325 WITH_ICONV has been split into two feature sets. WITH_ICONV now 326 enables just the iconv* functionality and is now on by default. 327 WITH_LIBICONV_COMPAT enables the libiconv api and link time 328 compatability. Set WITHOUT_ICONV to build the old way. 329 If you have been using WITH_ICONV before, you will very likely 330 need to turn on WITH_LIBICONV_COMPAT. 331 33220130806: 333 INVARIANTS option now enables DEBUG for code with OpenSolaris and 334 Illumos origin, including ZFS. If you have INVARIANTS in your 335 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 336 explicitly. 337 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 338 locks if WITNESS option was set. Because that generated a lot of 339 witness(9) reports and all of them were believed to be false 340 positives, this is no longer done. New option OPENSOLARIS_WITNESS 341 can be used to achieve the previous behavior. 342 34320130806: 344 Timer values in IPv6 data structures now use time_uptime instead 345 of time_second. Although this is not a user-visible functional 346 change, userland utilities which directly use them---ndp(8), 347 rtadvd(8), and rtsold(8) in the base system---need to be updated 348 to r253970 or later. 349 35020130802: 351 find -delete can now delete the pathnames given as arguments, 352 instead of only files found below them or if the pathname did 353 not contain any slashes. Formerly, the following error message 354 would result: 355 356 find: -delete: <path>: relative path potentially not safe 357 358 Deleting the pathnames given as arguments can be prevented 359 without error messages using -mindepth 1 or by changing 360 directory and passing "." as argument to find. This works in the 361 old as well as the new version of find. 362 36320130726: 364 Behavior of devfs rules path matching has been changed. 365 Pattern is now always matched against fully qualified devfs 366 path and slash characters must be explicitly matched by 367 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 368 subdirectories must be reviewed. 369 37020130716: 371 The default ARM ABI has changed to the ARM EABI. The old ABI is 372 incompatible with the ARM EABI and all programs and modules will 373 need to be rebuilt to work with a new kernel. 374 375 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 376 377 NOTE: Support for the old ABI will be removed in the future and 378 users are advised to upgrade. 379 38020130709: 381 pkg_install has been disconnected from the build if you really need it 382 you should add WITH_PKGTOOLS in your src.conf(5). 383 38420130709: 385 Most of network statistics structures were changed to be able 386 keep 64-bits counters. Thus all tools, that work with networking 387 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 388 38920130629: 390 Fix targets that run multiple make's to use && rather than ; 391 so that subsequent steps depend on success of previous. 392 393 NOTE: if building 'universe' with -j* on stable/8 or stable/9 394 it would be better to start the build using bmake, to avoid 395 overloading the machine. 396 39720130618: 398 Fix a bug that allowed a tracing process (e.g. gdb) to write 399 to a memory-mapped file in the traced process's address space 400 even if neither the traced process nor the tracing process had 401 write access to that file. 402 40320130615: 404 CVS has been removed from the base system. An exact copy 405 of the code is available from the devel/cvs port. 406 40720130613: 408 Some people report the following error after the switch to bmake: 409 410 make: illegal option -- J 411 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 412 ... 413 *** [buildworld] Error code 2 414 415 this likely due to an old instance of make in 416 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 417 which src/Makefile will use that blindly, if it exists, so if 418 you see the above error: 419 420 rm -rf `make -V MAKEPATH` 421 422 should resolve it. 423 42420130516: 425 Use bmake by default. 426 Whereas before one could choose to build with bmake via 427 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 428 make. The goal is to remove these knobs for 10-RELEASE. 429 430 It is worth noting that bmake (like gmake) treats the command 431 line as the unit of failure, rather than statements within the 432 command line. Thus '(cd some/where && dosomething)' is safer 433 than 'cd some/where; dosomething'. The '()' allows consistent 434 behavior in parallel build. 435 43620130429: 437 Fix a bug that allows NFS clients to issue READDIR on files. 438 43920130426: 440 The WITHOUT_IDEA option has been removed because 441 the IDEA patent expired. 442 44320130426: 444 The sysctl which controls TRIM support under ZFS has been renamed 445 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 446 enabled by default. 447 44820130425: 449 The mergemaster command now uses the default MAKEOBJDIRPREFIX 450 rather than creating it's own in the temporary directory in 451 order allow access to bootstrapped versions of tools such as 452 install and mtree. When upgrading from version of FreeBSD where 453 the install command does not support -l, you will need to 454 install a new mergemaster command if mergemaster -p is required. 455 This can be accomplished with the command (cd src/usr.sbin/mergemaster 456 && make install). 457 45820130404: 459 Legacy ATA stack, disabled and replaced by new CAM-based one since 460 FreeBSD 9.0, completely removed from the sources. Kernel modules 461 atadisk and atapi*, user-level tools atacontrol and burncd are 462 removed. Kernel option `options ATA_CAM` is now permanently enabled 463 and removed. 464 46520130319: 466 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 467 and socketpair(2). Software, in particular Kerberos, may 468 automatically detect and use these during building. The resulting 469 binaries will not work on older kernels. 470 47120130308: 472 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 473 information, see the respective 20130304 entry). 474 47520130304: 476 Recent commits to callout(9) changed the size of struct callout, 477 so the KBI is probably heavily disturbed. Also, some functions 478 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 479 by macros. Every kernel module using it won't load, so rebuild 480 is requested. 481 482 The ctl device has been re-enabled in GENERIC for i386 and amd64, 483 but does not initialize by default (because of the new CTL_DISABLE 484 option) to save memory. To re-enable it, remove the CTL_DISABLE 485 option from the kernel config file or set kern.cam.ctl.disable=0 486 in /boot/loader.conf. 487 48820130301: 489 The ctl device has been disabled in GENERIC for i386 and amd64. 490 This was done due to the extra memory being allocated at system 491 initialisation time by the ctl driver which was only used if 492 a CAM target device was created. This makes a FreeBSD system 493 unusable on 128MB or less of RAM. 494 49520130208: 496 A new compression method (lz4) has been merged to -HEAD. Please 497 refer to zpool-features(7) for more information. 498 499 Please refer to the "ZFS notes" section of this file for information 500 on upgrading boot ZFS pools. 501 50220130129: 503 A BSD-licensed patch(1) variant has been added and is installed 504 as bsdpatch, being the GNU version the default patch. 505 To inverse the logic and use the BSD-licensed one as default, 506 while having the GNU version installed as gnupatch, rebuild 507 and install world with the WITH_BSD_PATCH knob set. 508 50920130121: 510 Due to the use of the new -l option to install(1) during build 511 and install, you must take care not to directly set the INSTALL 512 make variable in your /etc/make.conf, /etc/src.conf, or on the 513 command line. If you wish to use the -C flag for all installs 514 you may be able to add INSTALL+=-C to /etc/make.conf or 515 /etc/src.conf. 516 51720130118: 518 The install(1) option -M has changed meaning and now takes an 519 argument that is a file or path to append logs to. In the 520 unlikely event that -M was the last option on the command line 521 and the command line contained at least two files and a target 522 directory the first file will have logs appended to it. The -M 523 option served little practical purpose in the last decade so its 524 use is expected to be extremely rare. 525 52620121223: 527 After switching to Clang as the default compiler some users of ZFS 528 on i386 systems started to experience stack overflow kernel panics. 529 Please consider using 'options KSTACK_PAGES=4' in such configurations. 530 53120121222: 532 GEOM_LABEL now mangles label names read from file system metadata. 533 Mangling affect labels containing spaces, non-printable characters, 534 '%' or '"'. Device names in /etc/fstab and other places may need to 535 be updated. 536 53720121217: 538 By default, only the 10 most recent kernel dumps will be saved. To 539 restore the previous behaviour (no limit on the number of kernel dumps 540 stored in the dump directory) add the following line to /etc/rc.conf: 541 542 savecore_flags="" 543 54420121201: 545 With the addition of auditdistd(8), a new auditdistd user is now 546 required during installworld. "mergemaster -p" can be used to 547 add the user prior to installworld, as documented in the handbook. 548 54920121117: 550 The sin6_scope_id member variable in struct sockaddr_in6 is now 551 filled by the kernel before passing the structure to the userland via 552 sysctl or routing socket. This means the KAME-specific embedded scope 553 id in sin6_addr.s6_addr[2] is always cleared in userland application. 554 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 555 __FreeBSD_version is bumped to 1000025. 556 55720121105: 558 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 559 This means that the world and kernel will be compiled with clang 560 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 561 and /usr/bin/cpp. To disable this behavior and revert to building 562 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 563 of current may need to bootstrap WITHOUT_CLANG first if the clang 564 build fails (its compatibility window doesn't extend to the 9 stable 565 branch point). 566 56720121102: 568 The IPFIREWALL_FORWARD kernel option has been removed. Its 569 functionality now turned on by default. 570 57120121023: 572 The ZERO_COPY_SOCKET kernel option has been removed and 573 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 574 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 575 mechanism which is not safe and may result in kernel crashes. 576 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 577 driver supports disposeable external page sized mbuf storage. 578 Proper replacements for both zero-copy mechanisms are under 579 consideration and will eventually lead to complete removal 580 of the two kernel options. 581 58220121023: 583 The IPv4 network stack has been converted to network byte 584 order. The following modules need to be recompiled together 585 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 586 pf(4), ipfw(4), ng_ipfw(4), stf(4). 587 58820121022: 589 Support for non-MPSAFE filesystems was removed from VFS. The 590 VFS_VERSION was bumped, all filesystem modules shall be 591 recompiled. 592 59320121018: 594 All the non-MPSAFE filesystems have been disconnected from 595 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 596 portalfs, smbfs, xfs. 597 59820121016: 599 The interface cloning API and ABI has changed. The following 600 modules need to be recompiled together with kernel: 601 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 602 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 603 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 604 60520121015: 606 The sdhci driver was split in two parts: sdhci (generic SD Host 607 Controller logic) and sdhci_pci (actual hardware driver). 608 No kernel config modifications are required, but if you 609 load sdhc as a module you must switch to sdhci_pci instead. 610 61120121014: 612 Import the FUSE kernel and userland support into base system. 613 61420121013: 615 The GNU sort(1) program has been removed since the BSD-licensed 616 sort(1) has been the default for quite some time and no serious 617 problems have been reported. The corresponding WITH_GNU_SORT 618 knob has also gone. 619 62020121006: 621 The pfil(9) API/ABI for AF_INET family has been changed. Packet 622 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 623 with new kernel. 624 62520121001: 626 The net80211(4) ABI has been changed to allow for improved driver 627 PS-POLL and power-save support. All wireless drivers need to be 628 recompiled to work with the new kernel. 629 63020120913: 631 The random(4) support for the VIA hardware random number 632 generator (`PADLOCK') is no longer enabled unconditionally. 633 Add the padlock_rng device in the custom kernel config if 634 needed. The GENERIC kernels on i386 and amd64 do include the 635 device, so the change only affects the custom kernel 636 configurations. 637 63820120908: 639 The pf(4) packet filter ABI has been changed. pfctl(8) and 640 snmp_pf module need to be recompiled to work with new kernel. 641 64220120828: 643 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 644 to -HEAD. Pools that have empty_bpobj in active state can not be 645 imported read-write with ZFS implementations that do not support 646 this feature. For more information read the zpool-features(5) 647 manual page. 648 64920120727: 650 The sparc64 ZFS loader has been changed to no longer try to auto- 651 detect ZFS providers based on diskN aliases but now requires these 652 to be explicitly listed in the OFW boot-device environment variable. 653 65420120712: 655 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 656 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 657 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 658 65920120712: 660 The following sysctls and tunables have been renamed for consistency 661 with other variables: 662 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 663 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 664 66520120628: 666 The sort utility has been replaced with BSD sort. For now, GNU sort 667 is also available as "gnusort" or the default can be set back to 668 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 669 installed as "bsdsort". 670 67120120611: 672 A new version of ZFS (pool version 5000) has been merged to -HEAD. 673 Starting with this version the old system of ZFS pool versioning 674 is superseded by "feature flags". This concept enables forward 675 compatibility against certain future changes in functionality of ZFS 676 pools. The first read-only compatible "feature flag" for ZFS pools 677 is named "com.delphix:async_destroy". For more information 678 read the new zpool-features(5) manual page. 679 Please refer to the "ZFS notes" section of this file for information 680 on upgrading boot ZFS pools. 681 68220120417: 683 The malloc(3) implementation embedded in libc now uses sources imported 684 as contrib/jemalloc. The most disruptive API change is to 685 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 686 delete it prior to installworld, and optionally re-create it using the 687 new format after rebooting. See malloc.conf(5) for details 688 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 689 NAMESPACE section). 690 69120120328: 692 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 693 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 694 now spelled mips. This is to aid compatibility with third-party 695 software that expects this naming scheme in uname(3). Little-endian 696 settings are unchanged. If you are updating a big-endian mips64 machine 697 from before this change, you may need to set MACHINE_ARCH=mips64 in 698 your environment before the new build system will recognize your machine. 699 70020120306: 701 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 702 platforms. 703 70420120229: 705 Now unix domain sockets behave "as expected" on nullfs(5). Previously 706 nullfs(5) did not pass through all behaviours to the underlying layer, 707 as a result if we bound to a socket on the lower layer we could connect 708 only to the lower path; if we bound to the upper layer we could connect 709 only to the upper path. The new behavior is one can connect to both the 710 lower and the upper paths regardless what layer path one binds to. 711 71220120211: 713 The getifaddrs upgrade path broken with 20111215 has been restored. 714 If you have upgraded in between 20111215 and 20120209 you need to 715 recompile libc again with your kernel. You still need to recompile 716 world to be able to configure CARP but this restriction already 717 comes from 20111215. 718 71920120114: 720 The set_rcvar() function has been removed from /etc/rc.subr. All 721 base and ports rc.d scripts have been updated, so if you have a 722 port installed with a script in /usr/local/etc/rc.d you can either 723 hand-edit the rcvar= line, or reinstall the port. 724 725 An easy way to handle the mass-update of /etc/rc.d: 726 rm /etc/rc.d/* && mergemaster -i 727 72820120109: 729 panic(9) now stops other CPUs in the SMP systems, disables interrupts 730 on the current CPU and prevents other threads from running. 731 This behavior can be reverted using the kern.stop_scheduler_on_panic 732 tunable/sysctl. 733 The new behavior can be incompatible with kern.sync_on_panic. 734 73520111215: 736 The carp(4) facility has been changed significantly. Configuration 737 of the CARP protocol via ifconfig(8) has changed, as well as format 738 of CARP events submitted to devd(8) has changed. See manual pages 739 for more information. The arpbalance feature of carp(4) is currently 740 not supported anymore. 741 742 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 743 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 744 need to be recompiled. 745 74620111122: 747 The acpi_wmi(4) status device /dev/wmistat has been renamed to 748 /dev/wmistat0. 749 75020111108: 751 The option VFS_ALLOW_NONMPSAFE option has been added in order to 752 explicitely support non-MPSAFE filesystems. 753 It is on by default for all supported platform at this present 754 time. 755 75620111101: 757 The broken amd(4) driver has been replaced with esp(4) in the amd64, 758 i386 and pc98 GENERIC kernel configuration files. 759 76020110930: 761 sysinstall has been removed 762 76320110923: 764 The stable/9 branch created in subversion. This corresponds to the 765 RELENG_9 branch in CVS. 766 76720110913: 768 This commit modifies vfs_register() so that it uses a hash 769 calculation to set vfc_typenum, which is enabled by default. 770 The first time a system is booted after this change, the 771 vfc_typenum values will change for all file systems. The 772 main effect of this is a change to the NFS server file handles 773 for file systems that use vfc_typenum in their fsid, such as ZFS. 774 It will, however, prevent vfc_typenum from changing when file 775 systems are loaded in a different order for subsequent reboots. 776 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 777 until you are ready to remount all NFS clients after a reboot. 778 77920110828: 780 Bump the shared library version numbers for libraries that 781 do not use symbol versioning, have changed the ABI compared 782 to stable/8 and which shared library version was not bumped. 783 Done as part of 9.0-RELEASE cycle. 784 78520110815: 786 During the merge of Capsicum features, the fget(9) KPI was modified. 787 This may require the rebuilding of out-of-tree device drivers -- 788 issues have been reported specifically with the nVidia device driver. 789 __FreeBSD_version is bumped to 900041. 790 791 Also, there is a period between 20110811 and 20110814 where the 792 special devices /dev/{stdin,stdout,stderr} did not work correctly. 793 Building world from a kernel during that window may not work. 794 79520110628: 796 The packet filter (pf) code has been updated to OpenBSD 4.5. 797 You need to update userland tools to be in sync with kernel. 798 This update breaks backward compatibility with earlier pfsync(4) 799 versions. Care must be taken when updating redundant firewall setups. 800 80120110608: 802 The following sysctls and tunables are retired on x86 platforms: 803 machdep.hlt_cpus 804 machdep.hlt_logical_cpus 805 The following sysctl is retired: 806 machdep.hyperthreading_allowed 807 The sysctls were supposed to provide a way to dynamically offline and 808 online selected CPUs on x86 platforms, but the implementation has not 809 been reliable especially with SCHED_ULE scheduler. 810 machdep.hyperthreading_allowed tunable is still available to ignore 811 hyperthreading CPUs at OS level. 812 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 813 where X is an APIC ID of a CPU. Be advised, though, that disabling 814 CPUs in non-uniform fashion will result in non-uniform topology and 815 may lead to sub-optimal system performance with SCHED_ULE, which is 816 a default scheduler. 817 81820110607: 819 cpumask_t type is retired and cpuset_t is used in order to describe 820 a mask of CPUs. 821 82220110531: 823 Changes to ifconfig(8) for dynamic address family detection mandate 824 that you are running a kernel of 20110525 or later. Make sure to 825 follow the update procedure to boot a new kernel before installing 826 world. 827 82820110513: 829 Support for sun4v architecture is officially dropped 830 83120110503: 832 Several KPI breaking changes have been committed to the mii(4) layer, 833 the PHY drivers and consequently some Ethernet drivers using mii(4). 834 This means that miibus.ko and the modules of the affected Ethernet 835 drivers need to be recompiled. 836 837 Note to kernel developers: Given that the OUI bit reversion problem 838 was fixed as part of these changes all mii(4) commits related to OUIs, 839 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 840 handling, no longer can be merged verbatim to stable/8 and previous 841 branches. 842 84320110430: 844 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 845 into their kernel configurations along with 'device pci'. 846 84720110427: 848 The default NFS client is now the new NFS client, so fstype "newnfs" 849 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 850 Although mounts via fstype "nfs" will usually work without userland 851 changes, it is recommended that the mount(8) and mount_nfs(8) 852 commands be rebuilt from sources and that a link to mount_nfs called 853 mount_oldnfs be created. The new client is compiled into the 854 kernel with "options NFSCL" and this is needed for diskless root 855 file systems. The GENERIC kernel configs have been changed to use 856 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 857 To use the regular/old client, you can "mount -t oldnfs ...". For 858 a diskless root file system, you must also include a line like: 859 860 vfs.root.mountfrom="oldnfs:" 861 862 in the boot/loader.conf on the root fs on the NFS server to make 863 a diskless root fs use the old client. 864 86520110424: 866 The GENERIC kernels for all architectures now default to the new 867 CAM-based ATA stack. It means that all legacy ATA drivers were 868 removed and replaced by respective CAM drivers. If you are using 869 ATA device names in /etc/fstab or other places, make sure to update 870 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 871 where 'Y's are the sequential numbers starting from zero for each type 872 in order of detection, unless configured otherwise with tunables, 873 see cam(4)). There will be symbolic links created in /dev/ to map 874 old adX devices to the respective adaY. They should provide basic 875 compatibility for file systems mounting in most cases, but they do 876 not support old user-level APIs and do not have respective providers 877 in GEOM. Consider using updated management tools with new device names. 878 879 It is possible to load devices ahci, ata, siis and mvs as modules, 880 but option ATA_CAM should remain in kernel configuration to make ata 881 module work as CAM driver supporting legacy ATA controllers. Device ata 882 still can be used in modular fashion (atacore + ...). Modules atadisk 883 and atapi* are not used and won't affect operation in ATA_CAM mode. 884 Note that to use CAM-based ATA kernel should include CAM devices 885 scbus, pass, da (or explicitly ada), cd and optionally others. All of 886 them are parts of the cam module. 887 888 ataraid(4) functionality is now supported by the RAID GEOM class. 889 To use it you can load geom_raid kernel module and use graid(8) tool 890 for management. Instead of /dev/arX device names, use /dev/raid/rX. 891 892 No kernel config options or code have been removed, so if a problem 893 arises, please report it and optionally revert to the old ATA stack. 894 In order to do it you can remove from the kernel config: 895 options ATA_CAM 896 device ahci 897 device mvs 898 device siis 899 , and instead add back: 900 device atadisk # ATA disk drives 901 device ataraid # ATA RAID drives 902 device atapicd # ATAPI CDROM drives 903 device atapifd # ATAPI floppy drives 904 device atapist # ATAPI tape drives 905 90620110423: 907 The default NFS server has been changed to the new server, which 908 was referred to as the experimental server. If you need to switch 909 back to the old NFS server, you must now put the "-o" option on 910 both the mountd and nfsd commands. This can be done using the 911 mountd_flags and nfs_server_flags rc.conf variables until an 912 update to the rc scripts is committed, which is coming soon. 913 91420110418: 915 The GNU Objective-C runtime library (libobjc), and other Objective-C 916 related components have been removed from the base system. If you 917 require an Objective-C library, please use one of the available ports. 918 91920110331: 920 ath(4) has been split into bus- and device- modules. if_ath contains 921 the HAL, the TX rate control and the network device code. if_ath_pci 922 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 923 contains the AHB glue. Users need to load both if_ath_pci and if_ath 924 in order to use ath on everything else. 925 926 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 927 need to load if_ath and if_ath_pci for ath(4) operation. 928 92920110314: 930 As part of the replacement of sysinstall, the process of building 931 release media has changed significantly. For details, please re-read 932 release(7), which has been updated to reflect the new build process. 933 93420110218: 935 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 936 is the last available version under GPLv2. It brings a number of new 937 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 938 4.1 and SSE 4.2), better support for powerpc64, a number of new 939 directives, and lots of other small improvements. See the ChangeLog 940 file in contrib/binutils for the full details. 941 94220110218: 943 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 944 compliant, and will now use half of hash for authentication. 945 This will break interoperability with all stacks (including all 946 actual FreeBSD versions) who implement 947 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 948 authentication). 949 The only workaround with such peers is to use another HMAC 950 algorithm for IPsec ("phase 2") authentication. 951 95220110207: 953 Remove the uio_yield prototype and symbol. This function has 954 been misnamed since it was introduced and should not be 955 globally exposed with this name. The equivalent functionality 956 is now available using kern_yield(curthread->td_user_pri). 957 The function remains undocumented. 958 95920110112: 960 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 961 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 962 for scalar sysctls is defined but disabled. Code that needs 963 UQUAD to pass the type checking that must compile on older 964 systems where the define is not present can check against 965 __FreeBSD_version >= 900030. 966 967 The system dialog(1) has been replaced with a new version previously 968 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 969 with the previous version, but the libdialog associated with it has 970 a largely incompatible API. As such, the original version of libdialog 971 will be kept temporarily as libodialog, until its base system consumers 972 are replaced or updated. Bump __FreeBSD_version to 900030. 973 97420110103: 975 If you are trying to run make universe on a -stable system, and you get 976 the following warning: 977 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 978 unknown. config(8) likely too old." 979 or something similar to it, then you must upgrade your -stable system 980 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 981 stable/8) or build the config from the latest stable/8 branch and 982 install it on your system. 983 984 Prior to this date, building a current universe on 8-stable system from 985 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 986 error in the first kernel build phase. A new config on those old 987 systems will fix that problem for older versions of -current. 988 98920101228: 990 The TCP stack has been modified to allow Khelp modules to interact with 991 it via helper hook points and store per-connection data in the TCP 992 control block. Bump __FreeBSD_version to 900029. User space tools that 993 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 994 be recompiled. 995 99620101114: 997 Generic IEEE 802.3 annex 31B full duplex flow control support has been 998 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 999 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1000 to take advantage of it instead of using custom implementations. This 1001 means that these drivers now no longer unconditionally advertise 1002 support for flow control but only do so if flow control is a selected 1003 media option. This was implemented in the generic support that way in 1004 order to allow flow control to be switched on and off via ifconfig(8) 1005 with the PHY specific default to typically off in order to protect 1006 from unwanted effects. Consequently, if you used flow control with 1007 one of the above mentioned drivers you now need to explicitly enable 1008 it, for example via: 1009 ifconfig bge0 media auto mediaopt flowcontrol 1010 1011 Along with the above mentioned changes generic support for setting 1012 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1013 e1000phy(4) as well as ip1000phy(4) have been converted to take 1014 advantage of it. This means that these drivers now no longer take the 1015 link0 parameter for selecting master mode but the master media option 1016 has to be used instead, for example like in the following: 1017 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1018 1019 Selection of master mode now is also available with all other PHY 1020 drivers supporting 1000baseT. 1021 102220101111: 1023 The TCP stack has received a significant update to add support for 1024 modularised congestion control and generally improve the clarity of 1025 congestion control decisions. Bump __FreeBSD_version to 900025. User 1026 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1027 sockstat) need to be recompiled. 1028 102920101002: 1030 The man(1) utility has been replaced by a new version that no longer 1031 uses /etc/manpath.config. Please consult man.conf(5) for how to 1032 migrate local entries to the new format. 1033 103420100928: 1035 The copyright strings printed by login(1) and sshd(8) at the time of a 1036 new connection have been removed to follow other operating systems and 1037 upstream sshd. 1038 103920100915: 1040 A workaround for a fixed ld bug has been removed in kernel code, 1041 so make sure that your system ld is built from sources after 1042 revision 210245 from 2010-07-19 (r211583 if building head kernel 1043 on stable/8, r211584 for stable/7; both from 2010-08-21). 1044 A symptom of incorrect ld version is different addresses for 1045 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1046 104720100913: 1048 The $ipv6_prefer variable in rc.conf(5) has been split into 1049 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1050 1051 The $ip6addrctl_policy is a variable to choose a pre-defined 1052 address selection policy set by ip6addrctl(8). A value 1053 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1054 default is "AUTO". 1055 1056 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1057 flag (see an entry of 20090926) is set on an interface with no 1058 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1059 security reason. If you want IPv6 link-local address on all 1060 interfaces by default, set this to "YES". 1061 1062 The old ipv6_prefer="YES" is equivalent to 1063 ipv6_activate_all_interfaces="YES" and 1064 ip6addrctl_policy="ipv6_prefer". 1065 106620100913: 1067 DTrace has grown support for userland tracing. Due to this, DTrace is 1068 now i386 and amd64 only. 1069 dtruss(1) is now installed by default on those systems and a new 1070 kernel module is needed for userland tracing: fasttrap. 1071 No changes to your kernel config file are necessary to enable 1072 userland tracing, but you might consider adding 'STRIP=' and 1073 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1074 to have informative userland stack traces in DTrace (ustack). 1075 107620100725: 1077 The acpi_aiboost(4) driver has been removed in favor of the new 1078 aibs(4) driver. You should update your kernel configuration file. 1079 108020100722: 1081 BSD grep has been imported to the base system and it is built by 1082 default. It is completely BSD licensed, highly GNU-compatible, uses 1083 less memory than its GNU counterpart and has a small codebase. 1084 However, it is slower than its GNU counterpart, which is mostly 1085 noticeable for larger searches, for smaller ones it is measurable 1086 but not significant. The reason is complex, the most important factor 1087 is that we lack a modern and efficient regex library and GNU 1088 overcomes this by optimizing the searches internally. Future work 1089 on improving the regex performance is planned, for the meantime, 1090 users that need better performance, can build GNU grep instead by 1091 setting the WITH_GNU_GREP knob. 1092 109320100713: 1094 Due to the import of powerpc64 support, all existing powerpc kernel 1095 configuration files must be updated with a machine directive like this: 1096 machine powerpc powerpc 1097 1098 In addition, an updated config(8) is required to build powerpc kernels 1099 after this change. 1100 110120100713: 1102 A new version of ZFS (version 15) has been merged to -HEAD. 1103 This version uses a python library for the following subcommands: 1104 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1105 For full functionality of these commands the following port must 1106 be installed: sysutils/py-zfs 1107 110820100429: 1109 'vm_page's are now hashed by physical address to an array of mutexes. 1110 Currently this is only used to serialize access to hold_count. Over 1111 time the page queue mutex will be peeled away. This changes the size 1112 of pmap on every architecture. And requires all callers of vm_page_hold 1113 and vm_page_unhold to be updated. 1114 111520100402: 1116 WITH_CTF can now be specified in src.conf (not recommended, there 1117 are some problems with static executables), make.conf (would also 1118 affect ports which do not use GNU make and do not override the 1119 compile targets) or in the kernel config (via "makeoptions 1120 WITH_CTF=yes"). 1121 When WITH_CTF was specified there before this was silently ignored, 1122 so make sure that WITH_CTF is not used in places which could lead 1123 to unwanted behavior. 1124 112520100311: 1126 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1127 to allow 32-bit compatibility on non-x86 platforms. All kernel 1128 configurations on amd64 and ia64 platforms using these options must 1129 be modified accordingly. 1130 113120100113: 1132 The utmp user accounting database has been replaced with utmpx, 1133 the user accounting interface standardized by POSIX. 1134 Unfortunately the semantics of utmp and utmpx don't match, 1135 making it practically impossible to support both interfaces. 1136 The user accounting database is used by tools like finger(1), 1137 last(1), talk(1), w(1) and ac(8). 1138 1139 All applications in the base system use utmpx. This means only 1140 local binaries (e.g. from the ports tree) may still use these 1141 utmp database files. These applications must be rebuilt to make 1142 use of utmpx. 1143 1144 After the system has been upgraded, it is safe to remove the old 1145 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1146 assuming their contents is of no importance anymore. Old wtmp 1147 databases can only be used by last(1) and ac(8) after they have 1148 been converted to the new format using wtmpcvt(1). 1149 115020100108: 1151 Introduce the kernel thread "deadlock resolver" (which can be enabled 1152 via the DEADLKRES option, see NOTES for more details) and the 1153 sleepq_type() function for sleepqueues. 1154 115520091202: 1156 The rc.firewall and rc.firewall6 were unified, and 1157 rc.firewall6 and rc.d/ip6fw were removed. 1158 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1159 variables are obsoleted. Instead, the following new rc 1160 variables are added to rc.d/ipfw: 1161 1162 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1163 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1164 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1165 1166 The meanings correspond to the relevant IPv4 variables. 1167 116820091125: 1169 8.0-RELEASE. 1170 117120091113: 1172 The default terminal emulation for syscons(4) has been changed 1173 from cons25 to xterm on all platforms except pc98. This means 1174 that the /etc/ttys file needs to be updated to ensure correct 1175 operation of applications on the console. 1176 1177 The terminal emulation style can be toggled per window by using 1178 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1179 options can be used to change the compile-time default back to 1180 cons25. 1181 1182 To prevent graphical artifacts, make sure the TERM environment 1183 variable is set to match the terminal emulation that is being 1184 performed by syscons(4). 1185 118620091109: 1187 The layout of the structure ieee80211req_scan_result has changed. 1188 Applications that require wireless scan results (e.g. ifconfig(8)) 1189 from net80211 need to be recompiled. 1190 1191 Applications such as wpa_supplicant(8) may require a full world 1192 build without using NO_CLEAN in order to get synchronized with the 1193 new structure. 1194 119520091025: 1196 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1197 There's one kernel module for each firmware. Adding "device iwnfw" 1198 to the kernel configuration file means including all three firmware 1199 images inside the kernel. If you want to include just the one for 1200 your wireless card, use the devices iwn4965fw, iwn5000fw or 1201 iwn5150fw. 1202 120320090926: 1204 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1205 into rc.d/netif. The changes are the following: 1206 1207 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1208 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1209 Note that both variables need the "inet6" keyword at the head. 1210 1211 Do not set $ipv6_network_interfaces manually if you do not 1212 understand what you are doing. It is not needed in most cases. 1213 1214 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1215 they are obsolete. 1216 1217 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1218 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1219 1220 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1221 all configured interfaces have "inet6 accept_rtadv" in the 1222 $ifconfig_IF_ipv6. These are for backward compatibility. 1223 1224 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1225 functionality of interfaces with no corresponding 1226 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1227 and the default address selection policy of ip6addrctl(8) 1228 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1229 Note that if you want to configure IPv6 functionality on the 1230 disabled interfaces after boot, first you need to clear the flag by 1231 using ifconfig(8) like: 1232 1233 ifconfig em0 inet6 -ifdisabled 1234 1235 If YES, the default address selection policy is set as 1236 IPv6-preferred. 1237 1238 The default value of $ipv6_prefer is NO. 1239 1240 4. If your system need to receive Router Advertisement messages, 1241 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1242 scripts automatically invoke rtsol(8) when the interface becomes 1243 UP. The Router Advertisement messages are used for SLAAC 1244 (State-Less Address AutoConfiguration). 1245 124620090922: 1247 802.11s D3.03 support was committed. This is incompatible with the 1248 previous code, which was based on D3.0. 1249 125020090912: 1251 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1252 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1253 control whether accepting Router Advertisement messages or not. 1254 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1255 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1256 The ifconfig(8) utility now supports these flags. 1257 125820090910: 1259 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1260 mount(8) and -a option for df(1) to see them. 1261 126220090825: 1263 The old tunable hw.bus.devctl_disable has been superseded by 1264 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1265 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1266 is 1000. 1267 126820090813: 1269 Remove the option STOP_NMI. The default action is now to use NMI only 1270 for KDB via the newly introduced function stop_cpus_hard() and 1271 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1272 127320090803: 1274 The stable/8 branch created in subversion. This corresponds to the 1275 RELENG_8 branch in CVS. 1276 127720090719: 1278 Bump the shared library version numbers for all libraries that do not 1279 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1280 __FreeBSD_version to 800105. 1281 128220090714: 1283 Due to changes in the implementation of virtual network stack support, 1284 all network-related kernel modules must be recompiled. As this change 1285 breaks the ABI, bump __FreeBSD_version to 800104. 1286 128720090713: 1288 The TOE interface to the TCP syncache has been modified to remove 1289 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1290 The cxgb driver is the only TOE consumer affected by this change, and 1291 needs to be recompiled along with the kernel. As this change breaks 1292 the ABI, bump __FreeBSD_version to 800103. 1293 129420090712: 1295 Padding has been added to struct tcpcb, sackhint and tcpstat in 1296 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1297 maintaining the ABI. However, this change breaks the ABI, so bump 1298 __FreeBSD_version to 800102. User space tools that rely on the size of 1299 any of these structs (e.g. sockstat) need to be recompiled. 1300 130120090630: 1302 The NFS_LEGACYRPC option has been removed along with the old kernel 1303 RPC implementation that this option selected. Kernel configurations 1304 may need to be adjusted. 1305 130620090629: 1307 The network interface device nodes at /dev/net/<interface> have been 1308 removed. All ioctl operations can be performed the normal way using 1309 routing sockets. The kqueue functionality can generally be replaced 1310 with routing sockets. 1311 131220090628: 1313 The documentation from the FreeBSD Documentation Project (Handbook, 1314 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1315 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1316 131720090624: 1318 The ABI of various structures related to the SYSV IPC API have been 1319 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1320 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1321 800100. 1322 132320090622: 1324 Layout of struct vnet has changed as routing related variables were 1325 moved to their own Vimage module. Modules need to be recompiled. Bump 1326 __FreeBSD_version to 800099. 1327 132820090619: 1329 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1330 respectively. As long as no more than 16 groups per process are used, 1331 no changes should be visible. When more than 16 groups are used, old 1332 binaries may fail if they call getgroups() or getgrouplist() with 1333 statically sized storage. Recompiling will work around this, but 1334 applications should be modified to use dynamically allocated storage 1335 for group arrays as POSIX.1-2008 does not cap an implementation's 1336 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1337 1338 NFS and portalfs mounts may also be affected as the list of groups is 1339 truncated to 16. Users of NFS who use more than 16 groups, should 1340 take care that negative group permissions are not used on the exported 1341 file systems as they will not be reliable unless a GSSAPI based 1342 authentication method is used. 1343 134420090616: 1345 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1346 option compiles in the support for adaptive spinning for lockmgrs 1347 which want to enable it. The lockinit() function now accepts the flag 1348 LK_ADAPTIVE in order to make the lock object subject to adaptive 1349 spinning when both held in write and read mode. 1350 135120090613: 1352 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1353 changed. User applications that use this ioctl need to be rebuilt. 1354 135520090611: 1356 The layout of struct thread has changed. Kernel and modules need to 1357 be rebuilt. 1358 135920090608: 1360 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1361 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1362 136320090602: 1364 window(1) has been removed from the base system. It can now be 1365 installed from ports. The port is called misc/window. 1366 136720090601: 1368 The way we are storing and accessing `routing table' entries has 1369 changed. Programs reading the FIB, like netstat, need to be 1370 re-compiled. 1371 137220090601: 1373 A new netisr implementation has been added for FreeBSD 8. Network 1374 file system modules, such as igmp, ipdivert, and others, should be 1375 rebuilt. 1376 Bump __FreeBSD_version to 800096. 1377 137820090530: 1379 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1380 more valid. 1381 138220090530: 1383 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1384 Bump __FreeBSD_version to 800094. 1385 138620090529: 1387 Add mnt_xflag field to 'struct mount'. File system modules need to be 1388 rebuilt. 1389 Bump __FreeBSD_version to 800093. 1390 139120090528: 1392 The compiling option ADAPTIVE_SX has been retired while it has been 1393 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1394 The KPI for sx_init_flags() changes as accepting flags: 1395 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1396 been introduced in order to handle the reversed logic. 1397 Bump __FreeBSD_version to 800092. 1398 139920090527: 1400 Add support for hierarchical jails. Remove global securelevel. 1401 Bump __FreeBSD_version to 800091. 1402 140320090523: 1404 The layout of struct vnet_net has changed, therefore modules 1405 need to be rebuilt. 1406 Bump __FreeBSD_version to 800090. 1407 140820090523: 1409 The newly imported zic(8) produces a new format in the output. Please 1410 run tzsetup(8) to install the newly created data to /etc/localtime. 1411 141220090520: 1413 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1414 hw.usb.* and is now consistent again with previous releases. 1415 141620090520: 1417 802.11 monitor mode support was revised and driver api's were changed. 1418 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1419 of DLT_IEEE802_11. No user-visible data structures were changed but 1420 applications that use DLT_IEEE802_11 may require changes. 1421 Bump __FreeBSD_version to 800088. 1422 142320090430: 1424 The layout of the following structs has changed: sysctl_oid, 1425 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1426 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1427 panics may be experienced. World rebuild is required for 1428 correctly checking networking state from userland. 1429 Bump __FreeBSD_version to 800085. 1430 143120090429: 1432 MLDv2 and Source-Specific Multicast (SSM) have been merged 1433 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1434 The implementation of SSM within FreeBSD's IPv6 stack closely 1435 follows the IPv4 implementation. 1436 1437 For kernel developers: 1438 1439 * The most important changes are that the ip6_output() and 1440 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1441 and this lock has been downgraded to a non-recursive mutex. 1442 1443 * As with the changes to the IPv4 stack to support SSM, filtering 1444 of inbound multicast traffic must now be performed by transport 1445 protocols within the IPv6 stack. This does not apply to TCP and 1446 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1447 1448 * The KPIs used by IPv6 multicast are similar to those used by 1449 the IPv4 stack, with the following differences: 1450 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1451 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1452 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1453 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1454 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1455 for MLDv1 have an additional 'timer' argument which is used to 1456 jitter the initial membership report for the solicited-node 1457 multicast membership on-link. 1458 * This is not strictly needed for MLDv2, which already jitters 1459 its report transmissions. However, the 'timer' argument is 1460 preserved in case MLDv1 is active on the interface. 1461 1462 * The KAME linked-list based IPv6 membership implementation has 1463 been refactored to use a vector similar to that used by the IPv4 1464 stack. 1465 Code which maintains a list of its own multicast memberships 1466 internally, e.g. carp, has been updated to reflect the new 1467 semantics. 1468 1469 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1470 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1471 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1472 implementation constraint which needs to be addressed in HEAD. 1473 1474 For application developers: 1475 1476 * The changes are broadly similar to those made for the IPv4 1477 stack. 1478 1479 * The use of IPv4 and IPv6 multicast socket options on the same 1480 socket, using mapped addresses, HAS NOT been tested or supported. 1481 1482 * There are a number of issues with the implementation of various 1483 IPv6 multicast APIs which need to be resolved in the API surface 1484 before the implementation is fully compatible with KAME userland 1485 use, and these are mostly to do with interface index treatment. 1486 1487 * The literature available discusses the use of either the delta / ASM 1488 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1489 using setsourcefilter(3)/getsourcefilter(3). For more information 1490 please refer to RFC 3768, 'Socket Interface Extensions for 1491 Multicast Source Filters'. 1492 1493 * Applications which use the published RFC 3678 APIs should be fine. 1494 1495 For systems administrators: 1496 1497 * The mtest(8) utility has been refactored to support IPv6, in 1498 addition to IPv4. Interface addresses are no longer accepted 1499 as arguments, their names must be used instead. The utility 1500 will map the interface name to its first IPv4 address as 1501 returned by getifaddrs(3). 1502 1503 * The ifmcstat(8) utility has also been updated to print the MLDv2 1504 endpoint state and source filter lists via sysctl(3). 1505 1506 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1507 loopback of IPv6 multicast datagrams by default; it defaults to 1 1508 to preserve the existing behaviour. Disabling multicast loopback is 1509 recommended for optimal system performance. 1510 1511 * The IPv6 MROUTING code has been changed to examine this sysctl 1512 instead of attempting to perform a group lookup before looping 1513 back forwarded datagrams. 1514 1515 Bump __FreeBSD_version to 800084. 1516 151720090422: 1518 Implement low-level Bluetooth HCI API. 1519 Bump __FreeBSD_version to 800083. 1520 152120090419: 1522 The layout of struct malloc_type, used by modules to register new 1523 memory allocation types, has changed. Most modules will need to 1524 be rebuilt or panics may be experienced. 1525 Bump __FreeBSD_version to 800081. 1526 152720090415: 1528 Anticipate overflowing inp_flags - add inp_flags2. 1529 This changes most offsets in inpcb, so checking v4 connection 1530 state will require a world rebuild. 1531 Bump __FreeBSD_version to 800080. 1532 153320090415: 1534 Add an llentry to struct route and struct route_in6. Modules 1535 embedding a struct route will need to be recompiled. 1536 Bump __FreeBSD_version to 800079. 1537 153820090414: 1539 The size of rt_metrics_lite and by extension rtentry has changed. 1540 Networking administration apps will need to be recompiled. 1541 The route command now supports show as an alias for get, weighting 1542 of routes, sticky and nostick flags to alter the behavior of stateful 1543 load balancing. 1544 Bump __FreeBSD_version to 800078. 1545 154620090408: 1547 Do not use Giant for kbdmux(4) locking. This is wrong and 1548 apparently causing more problems than it solves. This will 1549 re-open the issue where interrupt handlers may race with 1550 kbdmux(4) in polling mode. Typical symptoms include (but 1551 not limited to) duplicated and/or missing characters when 1552 low level console functions (such as gets) are used while 1553 interrupts are enabled (for example geli password prompt, 1554 mountroot prompt etc.). Disabling kbdmux(4) may help. 1555 155620090407: 1557 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1558 kernel modules referencing any of the above need to be recompiled. 1559 Bump __FreeBSD_version to 800075. 1560 156120090320: 1562 GEOM_PART has become the default partition slicer for storage devices, 1563 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1564 introduces some changes: 1565 1566 MSDOS/EBR: the devices created from MSDOS extended partition entries 1567 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1568 to devices with offset-based names. fstabs may need to be modified. 1569 1570 BSD: the "geometry does not match label" warning is harmless in most 1571 cases but it points to problems in file system misalignment with 1572 disk geometry. The "c" partition is now implicit, covers the whole 1573 top-level drive and cannot be (mis)used by users. 1574 1575 General: Kernel dumps are now not allowed to be written to devices 1576 whose partition types indicate they are meant to be used for file 1577 systems (or, in case of MSDOS partitions, as something else than 1578 the "386BSD" type). 1579 1580 Most of these changes date approximately from 200812. 1581 158220090319: 1583 The uscanner(4) driver has been removed from the kernel. This follows 1584 Linux removing theirs in 2.6 and making libusb the default interface 1585 (supported by sane). 1586 158720090319: 1588 The multicast forwarding code has been cleaned up. netstat(1) 1589 only relies on KVM now for printing bandwidth upcall meters. 1590 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1591 ip6_mroute_mod respectively. The config(5) options for statically 1592 compiling this code remain the same, i.e. 'options MROUTING'. 1593 159420090315: 1595 Support for the IFF_NEEDSGIANT network interface flag has been 1596 removed, which means that non-MPSAFE network device drivers are no 1597 longer supported. In particular, if_ar, if_sr, and network device 1598 drivers from the old (legacy) USB stack can no longer be built or 1599 used. 1600 160120090313: 1602 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1603 a bunch of new language catalog files have also been added. 1604 This means that some common libc messages are now localized and 1605 they depend on the LC_MESSAGES environmental variable. 1606 160720090313: 1608 The k8temp(4) driver has been renamed to amdtemp(4) since 1609 support for Family 10 and Family 11 CPU families was added. 1610 161120090309: 1612 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1613 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1614 1615 For kernel developers, the most important changes are that the 1616 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1617 and this lock has been downgraded to a non-recursive mutex. 1618 1619 Transport protocols (UDP, Raw IP) are now responsible for filtering 1620 inbound multicast traffic according to group membership and source 1621 filters. The imo_multicast_filter() KPI exists for this purpose. 1622 Transports which do not use multicast (SCTP, TCP) already reject 1623 multicast by default. Forwarding and receive performance may improve 1624 as a mutex acquisition is no longer needed in the ip_input() 1625 low-level input path. in_addmulti() and in_delmulti() are shimmed 1626 to new KPIs which exist to support SSM in-kernel. 1627 1628 For application developers, it is recommended that loopback of 1629 multicast datagrams be disabled for best performance, as this 1630 will still cause the lock to be taken for each looped-back 1631 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1632 be tuned to 0 to disable loopback by default; it defaults to 1 1633 to preserve the existing behaviour. 1634 1635 For systems administrators, to obtain best performance with 1636 multicast reception and multiple groups, it is always recommended 1637 that a card with a suitably precise hash filter is used. Hash 1638 collisions will still result in the lock being taken within the 1639 transport protocol input path to check group membership. 1640 1641 If deploying FreeBSD in an environment with IGMP snooping switches, 1642 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1643 enabled; this forces 224.0.0.0/24 group membership to be announced 1644 via IGMP. 1645 1646 The size of 'struct igmpstat' has changed; netstat needs to be 1647 recompiled to reflect this. 1648 Bump __FreeBSD_version to 800070. 1649 165020090309: 1651 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1652 updated to use it. This requires a buildworld/installworld in order to 1653 update the library and dependencies (usbconfig, etc). Its advisable to 1654 rebuild all ports which uses libusb. More specific directions are given 1655 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1656 libusb are no longer required and can be removed. 1657 165820090302: 1659 A workaround is committed to allow the creation of System V shared 1660 memory segment of size > 2 GB on the 64-bit architectures. 1661 Due to a limitation of the existing ABI, the shm_segsz member 1662 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1663 wrong for large segments. Note that limits must be explicitly 1664 raised to allow such segments to be created. 1665 166620090301: 1667 The layout of struct ifnet has changed, requiring a rebuild of all 1668 network device driver modules. 1669 167020090227: 1671 The /dev handling for the new USB stack has changed, a 1672 buildworld/installworld is required for libusb20. 1673 167420090223: 1675 The new USB2 stack has now been permanently moved in and all kernel and 1676 module names reverted to their previous values (eg, usb, ehci, ohci, 1677 ums, ...). The old usb stack can be compiled in by prefixing the name 1678 with the letter 'o', the old usb modules have been removed. 1679 Updating entry 20090216 for xorg and 20090215 for libmap may still 1680 apply. 1681 168220090217: 1683 The rc.conf(5) option if_up_delay has been renamed to 1684 defaultroute_delay to better reflect its purpose. If you have 1685 customized this setting in /etc/rc.conf you need to update it to 1686 use the new name. 1687 168820090216: 1689 xorg 7.4 wants to configure its input devices via hald which does not 1690 yet work with USB2. If the keyboard/mouse does not work in xorg then 1691 add 1692 Option "AllowEmptyInput" "off" 1693 to your ServerLayout section. This will cause X to use the configured 1694 kbd and mouse sections from your xorg.conf. 1695 169620090215: 1697 The GENERIC kernels for all architectures now default to the new USB2 1698 stack. No kernel config options or code have been removed so if a 1699 problem arises please report it and optionally revert to the old USB 1700 stack. If you are loading USB kernel modules or have a custom kernel 1701 that includes GENERIC then ensure that usb names are also changed over, 1702 eg uftdi -> usb2_serial_ftdi. 1703 1704 Older programs linked against the ports libusb 0.1 need to be 1705 redirected to the new stack's libusb20. /etc/libmap.conf can 1706 be used for this: 1707 # Map old usb library to new one for usb2 stack 1708 libusb-0.1.so.8 libusb20.so.1 1709 171020090209: 1711 All USB ethernet devices now attach as interfaces under the name ueN 1712 (eg. ue0). This is to provide a predictable name as vendors often 1713 change usb chipsets in a product without notice. 1714 171520090203: 1716 The ichsmb(4) driver has been changed to require SMBus slave 1717 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1718 All of the other SMBus controller drivers require left-justified 1719 slave addresses, so this change makes all the drivers provide the 1720 same interface. 1721 172220090201: 1723 INET6 statistics (struct ip6stat) was updated. 1724 netstat(1) needs to be recompiled. 1725 172620090119: 1727 NTFS has been removed from GENERIC kernel on amd64 to match 1728 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1729 will load ntfs.ko module automatically when NTFS support is 1730 actually needed, unless ntfs.ko is not installed or security 1731 level prohibits loading kernel modules. If either is the case, 1732 "options NTFS" has to be added into kernel config. 1733 173420090115: 1735 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1736 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1737 800061. User space tools that rely on the size of struct tcpcb in 1738 tcp_var.h (e.g. sockstat) need to be recompiled. 1739 174020081225: 1741 ng_tty(4) module updated to match the new TTY subsystem. 1742 Due to API change, user-level applications must be updated. 1743 New API support added to mpd5 CVS and expected to be present 1744 in next mpd5.3 release. 1745 174620081219: 1747 With __FreeBSD_version 800060 the makefs tool is part of 1748 the base system (it was a port). 1749 175020081216: 1751 The afdata and ifnet locks have been changed from mutexes to 1752 rwlocks, network modules will need to be re-compiled. 1753 175420081214: 1755 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1756 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1757 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1758 architecture and 40 bytes on 64-bit architecture. The userland 1759 applications "arp" and "ndp" have been updated accordingly. 1760 The output from "netstat -r" shows only routing entries and 1761 none of the L2 information. 1762 176320081130: 1764 __FreeBSD_version 800057 marks the switchover from the 1765 binary ath hal to source code. Users must add the line: 1766 1767 options AH_SUPPORT_AR5416 1768 1769 to their kernel config files when specifying: 1770 1771 device ath_hal 1772 1773 The ath_hal module no longer exists; the code is now compiled 1774 together with the driver in the ath module. It is now 1775 possible to tailor chip support (i.e. reduce the set of chips 1776 and thereby the code size); consult ath_hal(4) for details. 1777 177820081121: 1779 __FreeBSD_version 800054 adds memory barriers to 1780 <machine/atomic.h>, new interfaces to ifnet to facilitate 1781 multiple hardware transmit queues for cards that support 1782 them, and a lock-less ring-buffer implementation to 1783 enable drivers to more efficiently manage queueing of 1784 packets. 1785 178620081117: 1787 A new version of ZFS (version 13) has been merged to -HEAD. 1788 This version has zpool attribute "listsnapshots" off by 1789 default, which means "zfs list" does not show snapshots, 1790 and is the same as Solaris behavior. 1791 179220081028: 1793 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1794 179520081009: 1796 The uhci, ohci, ehci and slhci USB Host controller drivers have 1797 been put into separate modules. If you load the usb module 1798 separately through loader.conf you will need to load the 1799 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1800 controller add the following to loader.conf: 1801 1802 uhci_load="YES" 1803 ehci_load="YES" 1804 180520081009: 1806 The ABI used by the PMC toolset has changed. Please keep 1807 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1808 sync. 1809 181020081009: 1811 atapci kernel module now includes only generic PCI ATA 1812 driver. AHCI driver moved to ataahci kernel module. 1813 All vendor-specific code moved into separate kernel modules: 1814 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1815 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1816 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1817 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1818 181920080820: 1820 The TTY subsystem of the kernel has been replaced by a new 1821 implementation, which provides better scalability and an 1822 improved driver model. Most common drivers have been migrated to 1823 the new TTY subsystem, while others have not. The following 1824 drivers have not yet been ported to the new TTY layer: 1825 1826 PCI/ISA: 1827 cy, digi, rc, rp, sio 1828 1829 USB: 1830 ubser, ucycom 1831 1832 Line disciplines: 1833 ng_h4, ng_tty, ppp, sl, snp 1834 1835 Adding these drivers to your kernel configuration file shall 1836 cause compilation to fail. 1837 183820080818: 1839 ntpd has been upgraded to 4.2.4p5. 1840 184120080801: 1842 OpenSSH has been upgraded to 5.1p1. 1843 1844 For many years, FreeBSD's version of OpenSSH preferred DSA 1845 over RSA for host and user authentication keys. With this 1846 upgrade, we've switched to the vendor's default of RSA over 1847 DSA. This may cause upgraded clients to warn about unknown 1848 host keys even for previously known hosts. Users should 1849 follow the usual procedure for verifying host keys before 1850 accepting the RSA key. 1851 1852 This can be circumvented by setting the "HostKeyAlgorithms" 1853 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1854 command line. 1855 1856 Please note that the sequence of keys offered for 1857 authentication has been changed as well. You may want to 1858 specify IdentityFile in a different order to revert this 1859 behavior. 1860 186120080713: 1862 The sio(4) driver has been removed from the i386 and amd64 1863 kernel configuration files. This means uart(4) is now the 1864 default serial port driver on those platforms as well. 1865 1866 To prevent collisions with the sio(4) driver, the uart(4) driver 1867 uses different names for its device nodes. This means the 1868 onboard serial port will now most likely be called "ttyu0" 1869 instead of "ttyd0". You may need to reconfigure applications to 1870 use the new device names. 1871 1872 When using the serial port as a boot console, be sure to update 1873 /boot/device.hints and /etc/ttys before booting the new kernel. 1874 If you forget to do so, you can still manually specify the hints 1875 at the loader prompt: 1876 1877 set hint.uart.0.at="isa" 1878 set hint.uart.0.port="0x3F8" 1879 set hint.uart.0.flags="0x10" 1880 set hint.uart.0.irq="4" 1881 boot -s 1882 188320080609: 1884 The gpt(8) utility has been removed. Use gpart(8) to partition 1885 disks instead. 1886 188720080603: 1888 The version that Linuxulator emulates was changed from 2.4.2 1889 to 2.6.16. If you experience any problems with Linux binaries 1890 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1891 if it fixes the problem contact emulation mailing list. 1892 189320080525: 1894 ISDN4BSD (I4B) was removed from the src tree. You may need to 1895 update a your kernel configuration and remove relevant entries. 1896 189720080509: 1898 I have checked in code to support multiple routing tables. 1899 See the man pages setfib(1) and setfib(2). 1900 This is a hopefully backwards compatible version, 1901 but to make use of it you need to compile your kernel 1902 with options ROUTETABLES=2 (or more up to 16). 1903 190420080420: 1905 The 802.11 wireless support was redone to enable multi-bss 1906 operation on devices that are capable. The underlying device 1907 is no longer used directly but instead wlanX devices are 1908 cloned with ifconfig. This requires changes to rc.conf files. 1909 For example, change: 1910 ifconfig_ath0="WPA DHCP" 1911 to 1912 wlans_ath0=wlan0 1913 ifconfig_wlan0="WPA DHCP" 1914 see rc.conf(5) for more details. In addition, mergemaster of 1915 /etc/rc.d is highly recommended. Simultaneous update of userland 1916 and kernel wouldn't hurt either. 1917 1918 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1919 modules were merged into the base wlan module. All references 1920 to these modules (e.g. in kernel config files) must be removed. 1921 192220080408: 1923 psm(4) has gained write(2) support in native operation level. 1924 Arbitrary commands can be written to /dev/psm%d and status can 1925 be read back from it. Therefore, an application is responsible 1926 for status validation and error recovery. It is a no-op in 1927 other operation levels. 1928 192920080312: 1930 Support for KSE threading has been removed from the kernel. To 1931 run legacy applications linked against KSE libmap.conf may 1932 be used. The following libmap.conf may be used to ensure 1933 compatibility with any prior release: 1934 1935 libpthread.so.1 libthr.so.1 1936 libpthread.so.2 libthr.so.2 1937 libkse.so.3 libthr.so.3 1938 193920080301: 1940 The layout of struct vmspace has changed. This affects libkvm 1941 and any executables that link against libkvm and use the 1942 kvm_getprocs() function. In particular, but not exclusively, 1943 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1944 The effects are minimal, but it's advisable to upgrade world 1945 nonetheless. 1946 194720080229: 1948 The latest em driver no longer has support in it for the 1949 82575 adapter, this is now moved to the igb driver. The 1950 split was done to make new features that are incompatible 1951 with older hardware easier to do. 1952 195320080220: 1954 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1955 likewise the kernel option is now GEOM_LINUX_LVM. 1956 195720080211: 1958 The default NFS mount mode has changed from UDP to TCP for 1959 increased reliability. If you rely on (insecurely) NFS 1960 mounting across a firewall you may need to update your 1961 firewall rules. 1962 196320080208: 1964 Belatedly note the addition of m_collapse for compacting 1965 mbuf chains. 1966 196720080126: 1968 The fts(3) structures have been changed to use adequate 1969 integer types for their members and so to be able to cope 1970 with huge file trees. The old fts(3) ABI is preserved 1971 through symbol versioning in libc, so third-party binaries 1972 using fts(3) should still work, although they will not take 1973 advantage of the extended types. At the same time, some 1974 third-party software might fail to build after this change 1975 due to unportable assumptions made in its source code about 1976 fts(3) structure members. Such software should be fixed 1977 by its vendor or, in the worst case, in the ports tree. 1978 FreeBSD_version 800015 marks this change for the unlikely 1979 case that a portable fix is impossible. 1980 198120080123: 1982 To upgrade to -current after this date, you must be running 1983 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1984 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1985 198620071128: 1987 The ADAPTIVE_GIANT kernel option has been retired because its 1988 functionality is the default now. 1989 199020071118: 1991 The AT keyboard emulation of sunkbd(4) has been turned on 1992 by default. In order to make the special symbols of the Sun 1993 keyboards driven by sunkbd(4) work under X these now have 1994 to be configured the same way as Sun USB keyboards driven 1995 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1996 1997 Option "XkbLayout" "us" 1998 Option "XkbRules" "xorg" 1999 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2000 200120071024: 2002 It has been decided that it is desirable to provide ABI 2003 backwards compatibility to the FreeBSD 4/5/6 versions of the 2004 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2005 broken with the introduction of PCI domain support (see the 2006 20070930 entry). Unfortunately, this required the ABI of 2007 PCIOCGETCONF to be broken again in order to be able to 2008 provide backwards compatibility to the old version of that 2009 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2010 again. As for prominent ports this affects neither pciutils 2011 nor xorg-server this time, the hal port needs to be rebuilt 2012 however. 2013 201420071020: 2015 The misnamed kthread_create() and friends have been renamed 2016 to kproc_create() etc. Many of the callers already 2017 used kproc_start().. 2018 I will return kthread_create() and friends in a while 2019 with implementations that actually create threads, not procs. 2020 Renaming corresponds with version 800002. 2021 202220071010: 2023 RELENG_7 branched. 2024 2025COMMON ITEMS: 2026 2027 General Notes 2028 ------------- 2029 Avoid using make -j when upgrading. While generally safe, there are 2030 sometimes problems using -j to upgrade. If your upgrade fails with 2031 -j, please try again without -j. From time to time in the past there 2032 have been problems using -j with buildworld and/or installworld. This 2033 is especially true when upgrading between "distant" versions (eg one 2034 that cross a major release boundary or several minor releases, or when 2035 several months have passed on the -current branch). 2036 2037 Sometimes, obscure build problems are the result of environment 2038 poisoning. This can happen because the make utility reads its 2039 environment when searching for values for global variables. To run 2040 your build attempts in an "environmental clean room", prefix all make 2041 commands with 'env -i '. See the env(1) manual page for more details. 2042 2043 When upgrading from one major version to another it is generally best 2044 to upgrade to the latest code in the currently installed branch first, 2045 then do an upgrade to the new branch. This is the best-tested upgrade 2046 path, and has the highest probability of being successful. Please try 2047 this approach before reporting problems with a major version upgrade. 2048 2049 When upgrading a live system, having a root shell around before 2050 installing anything can help undo problems. Not having a root shell 2051 around can lead to problems if pam has changed too much from your 2052 starting point to allow continued authentication after the upgrade. 2053 2054 ZFS notes 2055 --------- 2056 When upgrading the boot ZFS pool to a new version, always follow 2057 these two steps: 2058 2059 1.) recompile and reinstall the ZFS boot loader and boot block 2060 (this is part of "make buildworld" and "make installworld") 2061 2062 2.) update the ZFS boot block on your boot drive 2063 2064 The following example updates the ZFS boot block on the first 2065 partition (freebsd-boot) of a GPT partitioned drive ad0: 2066 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2067 2068 Non-boot pools do not need these updates. 2069 2070 To build a kernel 2071 ----------------- 2072 If you are updating from a prior version of FreeBSD (even one just 2073 a few days old), you should follow this procedure. It is the most 2074 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2075 2076 make kernel-toolchain 2077 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2078 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2079 2080 To test a kernel once 2081 --------------------- 2082 If you just want to boot a kernel once (because you are not sure 2083 if it works, or if you want to boot a known bad kernel to provide 2084 debugging information) run 2085 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2086 nextboot -k testkernel 2087 2088 To just build a kernel when you know that it won't mess you up 2089 -------------------------------------------------------------- 2090 This assumes you are already running a CURRENT system. Replace 2091 ${arch} with the architecture of your machine (e.g. "i386", 2092 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2093 2094 cd src/sys/${arch}/conf 2095 config KERNEL_NAME_HERE 2096 cd ../compile/KERNEL_NAME_HERE 2097 make depend 2098 make 2099 make install 2100 2101 If this fails, go to the "To build a kernel" section. 2102 2103 To rebuild everything and install it on the current system. 2104 ----------------------------------------------------------- 2105 # Note: sometimes if you are running current you gotta do more than 2106 # is listed here if you are upgrading from a really old current. 2107 2108 <make sure you have good level 0 dumps> 2109 make buildworld 2110 make kernel KERNCONF=YOUR_KERNEL_HERE 2111 [1] 2112 <reboot in single user> [3] 2113 mergemaster -p [5] 2114 make installworld 2115 mergemaster -i [4] 2116 make delete-old [6] 2117 <reboot> 2118 2119 To cross-install current onto a separate partition 2120 -------------------------------------------------- 2121 # In this approach we use a separate partition to hold 2122 # current's root, 'usr', and 'var' directories. A partition 2123 # holding "/", "/usr" and "/var" should be about 2GB in 2124 # size. 2125 2126 <make sure you have good level 0 dumps> 2127 <boot into -stable> 2128 make buildworld 2129 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2130 <maybe newfs current's root partition> 2131 <mount current's root partition on directory ${CURRENT_ROOT}> 2132 make installworld DESTDIR=${CURRENT_ROOT} 2133 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2134 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2135 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2136 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2137 <reboot into current> 2138 <do a "native" rebuild/install as described in the previous section> 2139 <maybe install compatibility libraries from ports/misc/compat*> 2140 <reboot> 2141 2142 2143 To upgrade in-place from stable to current 2144 ---------------------------------------------- 2145 <make sure you have good level 0 dumps> 2146 make buildworld [9] 2147 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2148 [1] 2149 <reboot in single user> [3] 2150 mergemaster -p [5] 2151 make installworld 2152 mergemaster -i [4] 2153 make delete-old [6] 2154 <reboot> 2155 2156 Make sure that you've read the UPDATING file to understand the 2157 tweaks to various things you need. At this point in the life 2158 cycle of current, things change often and you are on your own 2159 to cope. The defaults can also change, so please read ALL of 2160 the UPDATING entries. 2161 2162 Also, if you are tracking -current, you must be subscribed to 2163 freebsd-current@freebsd.org. Make sure that before you update 2164 your sources that you have read and understood all the recent 2165 messages there. If in doubt, please track -stable which has 2166 much fewer pitfalls. 2167 2168 [1] If you have third party modules, such as vmware, you 2169 should disable them at this point so they don't crash your 2170 system on reboot. 2171 2172 [3] From the bootblocks, boot -s, and then do 2173 fsck -p 2174 mount -u / 2175 mount -a 2176 cd src 2177 adjkerntz -i # if CMOS is wall time 2178 Also, when doing a major release upgrade, it is required that 2179 you boot into single user mode to do the installworld. 2180 2181 [4] Note: This step is non-optional. Failure to do this step 2182 can result in a significant reduction in the functionality of the 2183 system. Attempting to do it by hand is not recommended and those 2184 that pursue this avenue should read this file carefully, as well 2185 as the archives of freebsd-current and freebsd-hackers mailing lists 2186 for potential gotchas. The -U option is also useful to consider. 2187 See mergemaster(8) for more information. 2188 2189 [5] Usually this step is a noop. However, from time to time 2190 you may need to do this if you get unknown user in the following 2191 step. It never hurts to do it all the time. You may need to 2192 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2193 install) after the buildworld before this step if you last updated 2194 from current before 20130425 or from -stable before 20130430. 2195 2196 [6] This only deletes old files and directories. Old libraries 2197 can be deleted by "make delete-old-libs", but you have to make 2198 sure that no program is using those libraries anymore. 2199 2200 [8] In order to have a kernel that can run the 4.x binaries needed to 2201 do an installworld, you must include the COMPAT_FREEBSD4 option in 2202 your kernel. Failure to do so may leave you with a system that is 2203 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2204 required to run the 5.x binaries on more recent kernels. And so on 2205 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2206 2207 Make sure that you merge any new devices from GENERIC since the 2208 last time you updated your kernel config file. 2209 2210 [9] When checking out sources, you must include the -P flag to have 2211 cvs prune empty directories. 2212 2213 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2214 "?=" instead of the "=" assignment operator, so that buildworld can 2215 override the CPUTYPE if it needs to. 2216 2217 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2218 not on the command line, or in /etc/make.conf. buildworld will 2219 warn if it is improperly defined. 2220FORMAT: 2221 2222This file contains a list, in reverse chronological order, of major 2223breakages in tracking -current. It is not guaranteed to be a complete 2224list of such breakages, and only contains entries since October 10, 2007. 2225If you need to see UPDATING entries from before that date, you will need 2226to fetch an UPDATING file from an older FreeBSD release. 2227 2228Copyright information: 2229 2230Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2231 2232Redistribution, publication, translation and use, with or without 2233modification, in full or in part, in any form or format of this 2234document are permitted without further permission from the author. 2235 2236THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2237IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2238WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2239DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2240INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2241(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2242SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2243HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2244STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2245IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2246POSSIBILITY OF SUCH DAMAGE. 2247 2248Contact Warner Losh if you have any questions about your use of 2249this document. 2250 2251$FreeBSD: stable/10/UPDATING 287037 2015-08-23 17:07:23Z ian $ 2252