UPDATING revision 284404
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 1920150614: 20 The import of openssl to address the FreeBSD-SA-15:10.openssl 21 security advisory includes a change which rejects handshakes 22 with DH parameters below 768 bits. sendmail releases prior 23 to 8.15.2 (not yet released), defaulted to a 512 bit 24 DH parameter setting for client connections. To work around 25 this interoperability, sendmail can be configured to use a 26 2048 bit DH parameter by: 27 28 1. Edit /etc/mail/`hostname`.mc 29 2. If a setting for confDH_PARAMETERS does not exist or 30 exists and is set to a string beginning with '5', 31 replace it with '2'. 32 3. If a setting for confDH_PARAMETERS exists and is set to 33 a file path, create a new file with: 34 openssl dhparam -out /path/to/file 2048 35 4. Rebuild the .cf file: 36 cd /etc/mail/; make; make install 37 5. Restart sendmail: 38 cd /etc/mail/; make restart 39 40 A sendmail patch is coming, at which time this file will be 41 updated. 42 4320150601: 44 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 45 defined in symlink(7); previously symlinks were silently ignored. 46 4720150430: 48 The const qualifier has been removed from iconv(3) to comply with 49 POSIX. The ports tree is aware of this from r384038 onwards. 50 5120141215: 52 At svn r275807, The default linux compat kernel ABI has been adjusted 53 to 2.6.18 in support of the linux-c6 compat ports infrastructure 54 update. If you wish to continue using the linux-f10 compat ports, 55 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 56 encouraged to update their linux-compat packages to linux-c6 during 57 their next update cycle. 58 59 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 60 6120141205: 62 pjdfstest has been integrated into kyua as an opt-in test suite. 63 Please see share/doc/pjdfstest/README for a more details on how to 64 execute it. 65 6620141118: 67 10.1-RELEASE. 68 6920140904: 70 The ofwfb driver, used to provide a graphics console on PowerPC when 71 using vt(4), no longer allows mmap() of all of physical memory. This 72 will prevent Xorg on PowerPC with some ATI graphics cards from 73 initializing properly unless x11-servers/xorg-server is updated to 74 1.12.4_8 or newer. 75 7620140831: 77 The libatf-c and libatf-c++ major versions were downgraded to 0 and 78 1 respectively to match the upstream numbers. They were out of 79 sync because, when they were originally added to FreeBSD, the 80 upstream versions were not respected. These libraries are private 81 and not yet built by default, so renumbering them should be a 82 non-issue. However, unclean source trees will yield broken test 83 programs once the operator executes "make delete-old-libs" after a 84 "make installworld". 85 86 Additionally, the atf-sh binary was made private by moving it into 87 /usr/libexec/. Already-built shell test programs will keep the 88 path to the old binary so they will break after "make delete-old" 89 is run. 90 91 If you are using WITH_TESTS=yes (not the default), wipe the object 92 tree and rebuild from scratch to prevent spurious test failures. 93 This is only needed once: the misnumbered libraries and misplaced 94 binaries have been added to OptionalObsoleteFiles.inc so they will 95 be removed during a clean upgrade. 96 9720140814: 98 The ixgbe tunables now match their sysctl counterparts, for example: 99 hw.ixgbe.enable_aim => hw.ix.enable_aim 100 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 101 10220140801: 103 The NFSv4.1 server committed by r269398 changes the internal 104 function call interfaces used between the NFS and krpc modules. 105 As such, __FreeBSD_version was bumped. 106 10720140729: 108 The default unbound configuration has been modified to address 109 issues with reverse lookups on networks that use private 110 address ranges. If you use the local_unbound service, run 111 "service local_unbound setup" as root to regenerate your 112 configuration, then "service local_unbound reload" to load the 113 new configuration. 114 11520140717: 116 It is no longer necessary to include the dwarf version in your DEBUG 117 options in your kernel config file. The bug that required it to be 118 placed in the config file has bene fixed. DEBUG should now just 119 contain -g. The build system will automatically update things 120 to do the right thing. 121 12220140715: 123 Several ABI breaking changes were merged to CTL and new iSCSI code. 124 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 125 iscsictl need to be rebuilt to work with a new kernel. 126 12720140708: 128 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 129 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 130 which differs from the behaviour controlled by this knob.) 131 13220140608: 133 On i386 and amd64 systems, the onifconsole flag is now set by default 134 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 135 as a login TTY if it is set in the bootloader as an active kernel 136 console. No changes in behavior should result otherwise. To revert to 137 the previous behavior, set ttyu0 to "off" in /etc/ttys. 138 13920140512: 140 Clang and llvm have been upgraded to 3.4.1 release. 141 14220140321: 143 Clang and llvm have been upgraded to 3.4 release. 144 14520140306: 146 If a Makefile in a tests/ directory was auto-generating a Kyuafile 147 instead of providing an explicit one, this would prevent such 148 Makefile from providing its own Kyuafile in the future during 149 NO_CLEAN builds. This has been fixed in the Makefiles but manual 150 intervention is needed to clean an objdir if you use NO_CLEAN: 151 # find /usr/obj -name Kyuafile | xargs rm -f 152 15320140303: 154 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 155 capability mode support. Please note that enabling the feature in 156 kernel is still highly recommended. 157 15820140227: 159 OpenSSH is now built with sandbox support, and will use sandbox as 160 the default privilege separation method. This requires Capsicum 161 capability mode support in kernel. 162 16320140216: 164 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 165 been deprecated and will not be part of FreeBSD 11.0 and later 166 releases. If you use this driver, please consider switching to 167 the nfe(4) driver instead. 168 16920140120: 170 10.0-RELEASE. 171 17220131216: 173 The behavior of gss_pseudo_random() for the krb5 mechanism 174 has changed, for applications requesting a longer random string 175 than produced by the underlying enctype's pseudo-random() function. 176 In particular, the random string produced from a session key of 177 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 178 be different at the 17th octet and later, after this change. 179 The counter used in the PRF+ construction is now encoded as a 180 big-endian integer in accordance with RFC 4402. 181 __FreeBSD_version is bumped to 1000701. 182 18320131108: 184 The WITHOUT_ATF build knob has been removed and its functionality 185 has been subsumed into the more generic WITHOUT_TESTS. If you were 186 using the former to disable the build of the ATF libraries, you 187 should change your settings to use the latter. 188 18920131031: 190 The default version of mtree is nmtree which is obtained from 191 NetBSD. The output is generally the same, but may vary 192 slightly. If you found you need identical output adding 193 "-F freebsd9" to the command line should do the trick. For the 194 time being, the old mtree is available as fmtree. 195 19620131014: 197 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 198 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 199 1.1.4_8 and verify bsdyml not linked in, before running "make 200 delete-old-libs": 201 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 202 or 203 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 204 20520131010: 206 The rc.d/jail script has been updated to support jail(8) 207 configuration file. The "jail_<jname>_*" rc.conf(5) variables 208 for per-jail configuration are automatically converted to 209 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 210 This is transparently backward compatible. See below about some 211 incompatibilities and rc.conf(5) manual page for more details. 212 213 These variables are now deprecated in favor of jail(8) configuration 214 file. One can use "rc.d/jail config <jname>" command to generate 215 a jail(8) configuration file in /var/run/jail.<jname>.conf without 216 running the jail(8) utility. The default pathname of the 217 configuration file is /etc/jail.conf and can be specified by 218 using $jail_conf or $jail_<jname>_conf variables. 219 220 Please note that jail_devfs_ruleset accepts an integer at 221 this moment. Please consider to rewrite the ruleset name 222 with an integer. 223 22420130930: 225 BIND has been removed from the base system. If all you need 226 is a local resolver, simply enable and start the local_unbound 227 service instead. Otherwise, several versions of BIND are 228 available in the ports tree. The dns/bind99 port is one example. 229 230 With this change, nslookup(1) and dig(1) are no longer in the base 231 system. Users should instead use host(1) and drill(1) which are 232 in the base system. Alternatively, nslookup and dig can 233 be obtained by installing the dns/bind-tools port. 234 23520130916: 236 With the addition of unbound(8), a new unbound user is now 237 required during installworld. "mergemaster -p" can be used to 238 add the user prior to installworld, as documented in the handbook. 239 24020130911: 241 OpenSSH is now built with DNSSEC support, and will by default 242 silently trust signed SSHFP records. This can be controlled with 243 the VerifyHostKeyDNS client configuration setting. DNSSEC support 244 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 245 24620130906: 247 The GNU Compiler Collection and C++ standard library (libstdc++) 248 are no longer built by default on platforms where clang is the system 249 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 250 options in src.conf. 251 25220130905: 253 The PROCDESC kernel option is now part of the GENERIC kernel 254 configuration and is required for the rwhod(8) to work. 255 If you are using custom kernel configuration, you should include 256 'options PROCDESC'. 257 25820130905: 259 The API and ABI related to the Capsicum framework was modified 260 in backward incompatible way. The userland libraries and programs 261 have to be recompiled to work with the new kernel. This includes the 262 following libraries and programs, but the whole buildworld is 263 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 264 kdump, procstat, rwho, rwhod, uniq. 265 26620130903: 267 AES-NI intrinsic support has been added to gcc. The AES-NI module 268 has been updated to use this support. A new gcc is required to build 269 the aesni module on both i386 and amd64. 270 27120130821: 272 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 273 Thus "device padlock_rng" and "device rdrand_rng" should be 274 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 275 27620130813: 277 WITH_ICONV has been split into two feature sets. WITH_ICONV now 278 enables just the iconv* functionality and is now on by default. 279 WITH_LIBICONV_COMPAT enables the libiconv api and link time 280 compatability. Set WITHOUT_ICONV to build the old way. 281 If you have been using WITH_ICONV before, you will very likely 282 need to turn on WITH_LIBICONV_COMPAT. 283 28420130806: 285 INVARIANTS option now enables DEBUG for code with OpenSolaris and 286 Illumos origin, including ZFS. If you have INVARIANTS in your 287 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 288 explicitly. 289 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 290 locks if WITNESS option was set. Because that generated a lot of 291 witness(9) reports and all of them were believed to be false 292 positives, this is no longer done. New option OPENSOLARIS_WITNESS 293 can be used to achieve the previous behavior. 294 29520130806: 296 Timer values in IPv6 data structures now use time_uptime instead 297 of time_second. Although this is not a user-visible functional 298 change, userland utilities which directly use them---ndp(8), 299 rtadvd(8), and rtsold(8) in the base system---need to be updated 300 to r253970 or later. 301 30220130802: 303 find -delete can now delete the pathnames given as arguments, 304 instead of only files found below them or if the pathname did 305 not contain any slashes. Formerly, the following error message 306 would result: 307 308 find: -delete: <path>: relative path potentially not safe 309 310 Deleting the pathnames given as arguments can be prevented 311 without error messages using -mindepth 1 or by changing 312 directory and passing "." as argument to find. This works in the 313 old as well as the new version of find. 314 31520130726: 316 Behavior of devfs rules path matching has been changed. 317 Pattern is now always matched against fully qualified devfs 318 path and slash characters must be explicitly matched by 319 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 320 subdirectories must be reviewed. 321 32220130716: 323 The default ARM ABI has changed to the ARM EABI. The old ABI is 324 incompatible with the ARM EABI and all programs and modules will 325 need to be rebuilt to work with a new kernel. 326 327 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 328 329 NOTE: Support for the old ABI will be removed in the future and 330 users are advised to upgrade. 331 33220130709: 333 pkg_install has been disconnected from the build if you really need it 334 you should add WITH_PKGTOOLS in your src.conf(5). 335 33620130709: 337 Most of network statistics structures were changed to be able 338 keep 64-bits counters. Thus all tools, that work with networking 339 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 340 34120130629: 342 Fix targets that run multiple make's to use && rather than ; 343 so that subsequent steps depend on success of previous. 344 345 NOTE: if building 'universe' with -j* on stable/8 or stable/9 346 it would be better to start the build using bmake, to avoid 347 overloading the machine. 348 34920130618: 350 Fix a bug that allowed a tracing process (e.g. gdb) to write 351 to a memory-mapped file in the traced process's address space 352 even if neither the traced process nor the tracing process had 353 write access to that file. 354 35520130615: 356 CVS has been removed from the base system. An exact copy 357 of the code is available from the devel/cvs port. 358 35920130613: 360 Some people report the following error after the switch to bmake: 361 362 make: illegal option -- J 363 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 364 ... 365 *** [buildworld] Error code 2 366 367 this likely due to an old instance of make in 368 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 369 which src/Makefile will use that blindly, if it exists, so if 370 you see the above error: 371 372 rm -rf `make -V MAKEPATH` 373 374 should resolve it. 375 37620130516: 377 Use bmake by default. 378 Whereas before one could choose to build with bmake via 379 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 380 make. The goal is to remove these knobs for 10-RELEASE. 381 382 It is worth noting that bmake (like gmake) treats the command 383 line as the unit of failure, rather than statements within the 384 command line. Thus '(cd some/where && dosomething)' is safer 385 than 'cd some/where; dosomething'. The '()' allows consistent 386 behavior in parallel build. 387 38820130429: 389 Fix a bug that allows NFS clients to issue READDIR on files. 390 39120130426: 392 The WITHOUT_IDEA option has been removed because 393 the IDEA patent expired. 394 39520130426: 396 The sysctl which controls TRIM support under ZFS has been renamed 397 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 398 enabled by default. 399 40020130425: 401 The mergemaster command now uses the default MAKEOBJDIRPREFIX 402 rather than creating it's own in the temporary directory in 403 order allow access to bootstrapped versions of tools such as 404 install and mtree. When upgrading from version of FreeBSD where 405 the install command does not support -l, you will need to 406 install a new mergemaster command if mergemaster -p is required. 407 This can be accomplished with the command (cd src/usr.sbin/mergemaster 408 && make install). 409 41020130404: 411 Legacy ATA stack, disabled and replaced by new CAM-based one since 412 FreeBSD 9.0, completely removed from the sources. Kernel modules 413 atadisk and atapi*, user-level tools atacontrol and burncd are 414 removed. Kernel option `options ATA_CAM` is now permanently enabled 415 and removed. 416 41720130319: 418 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 419 and socketpair(2). Software, in particular Kerberos, may 420 automatically detect and use these during building. The resulting 421 binaries will not work on older kernels. 422 42320130308: 424 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 425 information, see the respective 20130304 entry). 426 42720130304: 428 Recent commits to callout(9) changed the size of struct callout, 429 so the KBI is probably heavily disturbed. Also, some functions 430 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 431 by macros. Every kernel module using it won't load, so rebuild 432 is requested. 433 434 The ctl device has been re-enabled in GENERIC for i386 and amd64, 435 but does not initialize by default (because of the new CTL_DISABLE 436 option) to save memory. To re-enable it, remove the CTL_DISABLE 437 option from the kernel config file or set kern.cam.ctl.disable=0 438 in /boot/loader.conf. 439 44020130301: 441 The ctl device has been disabled in GENERIC for i386 and amd64. 442 This was done due to the extra memory being allocated at system 443 initialisation time by the ctl driver which was only used if 444 a CAM target device was created. This makes a FreeBSD system 445 unusable on 128MB or less of RAM. 446 44720130208: 448 A new compression method (lz4) has been merged to -HEAD. Please 449 refer to zpool-features(7) for more information. 450 451 Please refer to the "ZFS notes" section of this file for information 452 on upgrading boot ZFS pools. 453 45420130129: 455 A BSD-licensed patch(1) variant has been added and is installed 456 as bsdpatch, being the GNU version the default patch. 457 To inverse the logic and use the BSD-licensed one as default, 458 while having the GNU version installed as gnupatch, rebuild 459 and install world with the WITH_BSD_PATCH knob set. 460 46120130121: 462 Due to the use of the new -l option to install(1) during build 463 and install, you must take care not to directly set the INSTALL 464 make variable in your /etc/make.conf, /etc/src.conf, or on the 465 command line. If you wish to use the -C flag for all installs 466 you may be able to add INSTALL+=-C to /etc/make.conf or 467 /etc/src.conf. 468 46920130118: 470 The install(1) option -M has changed meaning and now takes an 471 argument that is a file or path to append logs to. In the 472 unlikely event that -M was the last option on the command line 473 and the command line contained at least two files and a target 474 directory the first file will have logs appended to it. The -M 475 option served little practical purpose in the last decade so its 476 use is expected to be extremely rare. 477 47820121223: 479 After switching to Clang as the default compiler some users of ZFS 480 on i386 systems started to experience stack overflow kernel panics. 481 Please consider using 'options KSTACK_PAGES=4' in such configurations. 482 48320121222: 484 GEOM_LABEL now mangles label names read from file system metadata. 485 Mangling affect labels containing spaces, non-printable characters, 486 '%' or '"'. Device names in /etc/fstab and other places may need to 487 be updated. 488 48920121217: 490 By default, only the 10 most recent kernel dumps will be saved. To 491 restore the previous behaviour (no limit on the number of kernel dumps 492 stored in the dump directory) add the following line to /etc/rc.conf: 493 494 savecore_flags="" 495 49620121201: 497 With the addition of auditdistd(8), a new auditdistd user is now 498 required during installworld. "mergemaster -p" can be used to 499 add the user prior to installworld, as documented in the handbook. 500 50120121117: 502 The sin6_scope_id member variable in struct sockaddr_in6 is now 503 filled by the kernel before passing the structure to the userland via 504 sysctl or routing socket. This means the KAME-specific embedded scope 505 id in sin6_addr.s6_addr[2] is always cleared in userland application. 506 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 507 __FreeBSD_version is bumped to 1000025. 508 50920121105: 510 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 511 This means that the world and kernel will be compiled with clang 512 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 513 and /usr/bin/cpp. To disable this behavior and revert to building 514 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 515 of current may need to bootstrap WITHOUT_CLANG first if the clang 516 build fails (its compatibility window doesn't extend to the 9 stable 517 branch point). 518 51920121102: 520 The IPFIREWALL_FORWARD kernel option has been removed. Its 521 functionality now turned on by default. 522 52320121023: 524 The ZERO_COPY_SOCKET kernel option has been removed and 525 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 526 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 527 mechanism which is not safe and may result in kernel crashes. 528 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 529 driver supports disposeable external page sized mbuf storage. 530 Proper replacements for both zero-copy mechanisms are under 531 consideration and will eventually lead to complete removal 532 of the two kernel options. 533 53420121023: 535 The IPv4 network stack has been converted to network byte 536 order. The following modules need to be recompiled together 537 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 538 pf(4), ipfw(4), ng_ipfw(4), stf(4). 539 54020121022: 541 Support for non-MPSAFE filesystems was removed from VFS. The 542 VFS_VERSION was bumped, all filesystem modules shall be 543 recompiled. 544 54520121018: 546 All the non-MPSAFE filesystems have been disconnected from 547 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 548 portalfs, smbfs, xfs. 549 55020121016: 551 The interface cloning API and ABI has changed. The following 552 modules need to be recompiled together with kernel: 553 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 554 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 555 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 556 55720121015: 558 The sdhci driver was split in two parts: sdhci (generic SD Host 559 Controller logic) and sdhci_pci (actual hardware driver). 560 No kernel config modifications are required, but if you 561 load sdhc as a module you must switch to sdhci_pci instead. 562 56320121014: 564 Import the FUSE kernel and userland support into base system. 565 56620121013: 567 The GNU sort(1) program has been removed since the BSD-licensed 568 sort(1) has been the default for quite some time and no serious 569 problems have been reported. The corresponding WITH_GNU_SORT 570 knob has also gone. 571 57220121006: 573 The pfil(9) API/ABI for AF_INET family has been changed. Packet 574 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 575 with new kernel. 576 57720121001: 578 The net80211(4) ABI has been changed to allow for improved driver 579 PS-POLL and power-save support. All wireless drivers need to be 580 recompiled to work with the new kernel. 581 58220120913: 583 The random(4) support for the VIA hardware random number 584 generator (`PADLOCK') is no longer enabled unconditionally. 585 Add the padlock_rng device in the custom kernel config if 586 needed. The GENERIC kernels on i386 and amd64 do include the 587 device, so the change only affects the custom kernel 588 configurations. 589 59020120908: 591 The pf(4) packet filter ABI has been changed. pfctl(8) and 592 snmp_pf module need to be recompiled to work with new kernel. 593 59420120828: 595 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 596 to -HEAD. Pools that have empty_bpobj in active state can not be 597 imported read-write with ZFS implementations that do not support 598 this feature. For more information read the zpool-features(5) 599 manual page. 600 60120120727: 602 The sparc64 ZFS loader has been changed to no longer try to auto- 603 detect ZFS providers based on diskN aliases but now requires these 604 to be explicitly listed in the OFW boot-device environment variable. 605 60620120712: 607 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 608 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 609 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 610 61120120712: 612 The following sysctls and tunables have been renamed for consistency 613 with other variables: 614 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 615 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 616 61720120628: 618 The sort utility has been replaced with BSD sort. For now, GNU sort 619 is also available as "gnusort" or the default can be set back to 620 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 621 installed as "bsdsort". 622 62320120611: 624 A new version of ZFS (pool version 5000) has been merged to -HEAD. 625 Starting with this version the old system of ZFS pool versioning 626 is superseded by "feature flags". This concept enables forward 627 compatibility against certain future changes in functionality of ZFS 628 pools. The first read-only compatible "feature flag" for ZFS pools 629 is named "com.delphix:async_destroy". For more information 630 read the new zpool-features(5) manual page. 631 Please refer to the "ZFS notes" section of this file for information 632 on upgrading boot ZFS pools. 633 63420120417: 635 The malloc(3) implementation embedded in libc now uses sources imported 636 as contrib/jemalloc. The most disruptive API change is to 637 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 638 delete it prior to installworld, and optionally re-create it using the 639 new format after rebooting. See malloc.conf(5) for details 640 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 641 NAMESPACE section). 642 64320120328: 644 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 645 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 646 now spelled mips. This is to aid compatibility with third-party 647 software that expects this naming scheme in uname(3). Little-endian 648 settings are unchanged. If you are updating a big-endian mips64 machine 649 from before this change, you may need to set MACHINE_ARCH=mips64 in 650 your environment before the new build system will recognize your machine. 651 65220120306: 653 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 654 platforms. 655 65620120229: 657 Now unix domain sockets behave "as expected" on nullfs(5). Previously 658 nullfs(5) did not pass through all behaviours to the underlying layer, 659 as a result if we bound to a socket on the lower layer we could connect 660 only to the lower path; if we bound to the upper layer we could connect 661 only to the upper path. The new behavior is one can connect to both the 662 lower and the upper paths regardless what layer path one binds to. 663 66420120211: 665 The getifaddrs upgrade path broken with 20111215 has been restored. 666 If you have upgraded in between 20111215 and 20120209 you need to 667 recompile libc again with your kernel. You still need to recompile 668 world to be able to configure CARP but this restriction already 669 comes from 20111215. 670 67120120114: 672 The set_rcvar() function has been removed from /etc/rc.subr. All 673 base and ports rc.d scripts have been updated, so if you have a 674 port installed with a script in /usr/local/etc/rc.d you can either 675 hand-edit the rcvar= line, or reinstall the port. 676 677 An easy way to handle the mass-update of /etc/rc.d: 678 rm /etc/rc.d/* && mergemaster -i 679 68020120109: 681 panic(9) now stops other CPUs in the SMP systems, disables interrupts 682 on the current CPU and prevents other threads from running. 683 This behavior can be reverted using the kern.stop_scheduler_on_panic 684 tunable/sysctl. 685 The new behavior can be incompatible with kern.sync_on_panic. 686 68720111215: 688 The carp(4) facility has been changed significantly. Configuration 689 of the CARP protocol via ifconfig(8) has changed, as well as format 690 of CARP events submitted to devd(8) has changed. See manual pages 691 for more information. The arpbalance feature of carp(4) is currently 692 not supported anymore. 693 694 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 695 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 696 need to be recompiled. 697 69820111122: 699 The acpi_wmi(4) status device /dev/wmistat has been renamed to 700 /dev/wmistat0. 701 70220111108: 703 The option VFS_ALLOW_NONMPSAFE option has been added in order to 704 explicitely support non-MPSAFE filesystems. 705 It is on by default for all supported platform at this present 706 time. 707 70820111101: 709 The broken amd(4) driver has been replaced with esp(4) in the amd64, 710 i386 and pc98 GENERIC kernel configuration files. 711 71220110930: 713 sysinstall has been removed 714 71520110923: 716 The stable/9 branch created in subversion. This corresponds to the 717 RELENG_9 branch in CVS. 718 71920110913: 720 This commit modifies vfs_register() so that it uses a hash 721 calculation to set vfc_typenum, which is enabled by default. 722 The first time a system is booted after this change, the 723 vfc_typenum values will change for all file systems. The 724 main effect of this is a change to the NFS server file handles 725 for file systems that use vfc_typenum in their fsid, such as ZFS. 726 It will, however, prevent vfc_typenum from changing when file 727 systems are loaded in a different order for subsequent reboots. 728 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 729 until you are ready to remount all NFS clients after a reboot. 730 73120110828: 732 Bump the shared library version numbers for libraries that 733 do not use symbol versioning, have changed the ABI compared 734 to stable/8 and which shared library version was not bumped. 735 Done as part of 9.0-RELEASE cycle. 736 73720110815: 738 During the merge of Capsicum features, the fget(9) KPI was modified. 739 This may require the rebuilding of out-of-tree device drivers -- 740 issues have been reported specifically with the nVidia device driver. 741 __FreeBSD_version is bumped to 900041. 742 743 Also, there is a period between 20110811 and 20110814 where the 744 special devices /dev/{stdin,stdout,stderr} did not work correctly. 745 Building world from a kernel during that window may not work. 746 74720110628: 748 The packet filter (pf) code has been updated to OpenBSD 4.5. 749 You need to update userland tools to be in sync with kernel. 750 This update breaks backward compatibility with earlier pfsync(4) 751 versions. Care must be taken when updating redundant firewall setups. 752 75320110608: 754 The following sysctls and tunables are retired on x86 platforms: 755 machdep.hlt_cpus 756 machdep.hlt_logical_cpus 757 The following sysctl is retired: 758 machdep.hyperthreading_allowed 759 The sysctls were supposed to provide a way to dynamically offline and 760 online selected CPUs on x86 platforms, but the implementation has not 761 been reliable especially with SCHED_ULE scheduler. 762 machdep.hyperthreading_allowed tunable is still available to ignore 763 hyperthreading CPUs at OS level. 764 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 765 where X is an APIC ID of a CPU. Be advised, though, that disabling 766 CPUs in non-uniform fashion will result in non-uniform topology and 767 may lead to sub-optimal system performance with SCHED_ULE, which is 768 a default scheduler. 769 77020110607: 771 cpumask_t type is retired and cpuset_t is used in order to describe 772 a mask of CPUs. 773 77420110531: 775 Changes to ifconfig(8) for dynamic address family detection mandate 776 that you are running a kernel of 20110525 or later. Make sure to 777 follow the update procedure to boot a new kernel before installing 778 world. 779 78020110513: 781 Support for sun4v architecture is officially dropped 782 78320110503: 784 Several KPI breaking changes have been committed to the mii(4) layer, 785 the PHY drivers and consequently some Ethernet drivers using mii(4). 786 This means that miibus.ko and the modules of the affected Ethernet 787 drivers need to be recompiled. 788 789 Note to kernel developers: Given that the OUI bit reversion problem 790 was fixed as part of these changes all mii(4) commits related to OUIs, 791 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 792 handling, no longer can be merged verbatim to stable/8 and previous 793 branches. 794 79520110430: 796 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 797 into their kernel configurations along with 'device pci'. 798 79920110427: 800 The default NFS client is now the new NFS client, so fstype "newnfs" 801 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 802 Although mounts via fstype "nfs" will usually work without userland 803 changes, it is recommended that the mount(8) and mount_nfs(8) 804 commands be rebuilt from sources and that a link to mount_nfs called 805 mount_oldnfs be created. The new client is compiled into the 806 kernel with "options NFSCL" and this is needed for diskless root 807 file systems. The GENERIC kernel configs have been changed to use 808 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 809 To use the regular/old client, you can "mount -t oldnfs ...". For 810 a diskless root file system, you must also include a line like: 811 812 vfs.root.mountfrom="oldnfs:" 813 814 in the boot/loader.conf on the root fs on the NFS server to make 815 a diskless root fs use the old client. 816 81720110424: 818 The GENERIC kernels for all architectures now default to the new 819 CAM-based ATA stack. It means that all legacy ATA drivers were 820 removed and replaced by respective CAM drivers. If you are using 821 ATA device names in /etc/fstab or other places, make sure to update 822 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 823 where 'Y's are the sequential numbers starting from zero for each type 824 in order of detection, unless configured otherwise with tunables, 825 see cam(4)). There will be symbolic links created in /dev/ to map 826 old adX devices to the respective adaY. They should provide basic 827 compatibility for file systems mounting in most cases, but they do 828 not support old user-level APIs and do not have respective providers 829 in GEOM. Consider using updated management tools with new device names. 830 831 It is possible to load devices ahci, ata, siis and mvs as modules, 832 but option ATA_CAM should remain in kernel configuration to make ata 833 module work as CAM driver supporting legacy ATA controllers. Device ata 834 still can be used in modular fashion (atacore + ...). Modules atadisk 835 and atapi* are not used and won't affect operation in ATA_CAM mode. 836 Note that to use CAM-based ATA kernel should include CAM devices 837 scbus, pass, da (or explicitly ada), cd and optionally others. All of 838 them are parts of the cam module. 839 840 ataraid(4) functionality is now supported by the RAID GEOM class. 841 To use it you can load geom_raid kernel module and use graid(8) tool 842 for management. Instead of /dev/arX device names, use /dev/raid/rX. 843 844 No kernel config options or code have been removed, so if a problem 845 arises, please report it and optionally revert to the old ATA stack. 846 In order to do it you can remove from the kernel config: 847 options ATA_CAM 848 device ahci 849 device mvs 850 device siis 851 , and instead add back: 852 device atadisk # ATA disk drives 853 device ataraid # ATA RAID drives 854 device atapicd # ATAPI CDROM drives 855 device atapifd # ATAPI floppy drives 856 device atapist # ATAPI tape drives 857 85820110423: 859 The default NFS server has been changed to the new server, which 860 was referred to as the experimental server. If you need to switch 861 back to the old NFS server, you must now put the "-o" option on 862 both the mountd and nfsd commands. This can be done using the 863 mountd_flags and nfs_server_flags rc.conf variables until an 864 update to the rc scripts is committed, which is coming soon. 865 86620110418: 867 The GNU Objective-C runtime library (libobjc), and other Objective-C 868 related components have been removed from the base system. If you 869 require an Objective-C library, please use one of the available ports. 870 87120110331: 872 ath(4) has been split into bus- and device- modules. if_ath contains 873 the HAL, the TX rate control and the network device code. if_ath_pci 874 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 875 contains the AHB glue. Users need to load both if_ath_pci and if_ath 876 in order to use ath on everything else. 877 878 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 879 need to load if_ath and if_ath_pci for ath(4) operation. 880 88120110314: 882 As part of the replacement of sysinstall, the process of building 883 release media has changed significantly. For details, please re-read 884 release(7), which has been updated to reflect the new build process. 885 88620110218: 887 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 888 is the last available version under GPLv2. It brings a number of new 889 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 890 4.1 and SSE 4.2), better support for powerpc64, a number of new 891 directives, and lots of other small improvements. See the ChangeLog 892 file in contrib/binutils for the full details. 893 89420110218: 895 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 896 compliant, and will now use half of hash for authentication. 897 This will break interoperability with all stacks (including all 898 actual FreeBSD versions) who implement 899 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 900 authentication). 901 The only workaround with such peers is to use another HMAC 902 algorithm for IPsec ("phase 2") authentication. 903 90420110207: 905 Remove the uio_yield prototype and symbol. This function has 906 been misnamed since it was introduced and should not be 907 globally exposed with this name. The equivalent functionality 908 is now available using kern_yield(curthread->td_user_pri). 909 The function remains undocumented. 910 91120110112: 912 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 913 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 914 for scalar sysctls is defined but disabled. Code that needs 915 UQUAD to pass the type checking that must compile on older 916 systems where the define is not present can check against 917 __FreeBSD_version >= 900030. 918 919 The system dialog(1) has been replaced with a new version previously 920 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 921 with the previous version, but the libdialog associated with it has 922 a largely incompatible API. As such, the original version of libdialog 923 will be kept temporarily as libodialog, until its base system consumers 924 are replaced or updated. Bump __FreeBSD_version to 900030. 925 92620110103: 927 If you are trying to run make universe on a -stable system, and you get 928 the following warning: 929 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 930 unknown. config(8) likely too old." 931 or something similar to it, then you must upgrade your -stable system 932 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 933 stable/8) or build the config from the latest stable/8 branch and 934 install it on your system. 935 936 Prior to this date, building a current universe on 8-stable system from 937 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 938 error in the first kernel build phase. A new config on those old 939 systems will fix that problem for older versions of -current. 940 94120101228: 942 The TCP stack has been modified to allow Khelp modules to interact with 943 it via helper hook points and store per-connection data in the TCP 944 control block. Bump __FreeBSD_version to 900029. User space tools that 945 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 946 be recompiled. 947 94820101114: 949 Generic IEEE 802.3 annex 31B full duplex flow control support has been 950 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 951 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 952 to take advantage of it instead of using custom implementations. This 953 means that these drivers now no longer unconditionally advertise 954 support for flow control but only do so if flow control is a selected 955 media option. This was implemented in the generic support that way in 956 order to allow flow control to be switched on and off via ifconfig(8) 957 with the PHY specific default to typically off in order to protect 958 from unwanted effects. Consequently, if you used flow control with 959 one of the above mentioned drivers you now need to explicitly enable 960 it, for example via: 961 ifconfig bge0 media auto mediaopt flowcontrol 962 963 Along with the above mentioned changes generic support for setting 964 1000baseT master mode also has been added and brgphy(4), ciphy(4), 965 e1000phy(4) as well as ip1000phy(4) have been converted to take 966 advantage of it. This means that these drivers now no longer take the 967 link0 parameter for selecting master mode but the master media option 968 has to be used instead, for example like in the following: 969 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 970 971 Selection of master mode now is also available with all other PHY 972 drivers supporting 1000baseT. 973 97420101111: 975 The TCP stack has received a significant update to add support for 976 modularised congestion control and generally improve the clarity of 977 congestion control decisions. Bump __FreeBSD_version to 900025. User 978 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 979 sockstat) need to be recompiled. 980 98120101002: 982 The man(1) utility has been replaced by a new version that no longer 983 uses /etc/manpath.config. Please consult man.conf(5) for how to 984 migrate local entries to the new format. 985 98620100928: 987 The copyright strings printed by login(1) and sshd(8) at the time of a 988 new connection have been removed to follow other operating systems and 989 upstream sshd. 990 99120100915: 992 A workaround for a fixed ld bug has been removed in kernel code, 993 so make sure that your system ld is built from sources after 994 revision 210245 from 2010-07-19 (r211583 if building head kernel 995 on stable/8, r211584 for stable/7; both from 2010-08-21). 996 A symptom of incorrect ld version is different addresses for 997 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 998 99920100913: 1000 The $ipv6_prefer variable in rc.conf(5) has been split into 1001 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1002 1003 The $ip6addrctl_policy is a variable to choose a pre-defined 1004 address selection policy set by ip6addrctl(8). A value 1005 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1006 default is "AUTO". 1007 1008 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1009 flag (see an entry of 20090926) is set on an interface with no 1010 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1011 security reason. If you want IPv6 link-local address on all 1012 interfaces by default, set this to "YES". 1013 1014 The old ipv6_prefer="YES" is equivalent to 1015 ipv6_activate_all_interfaces="YES" and 1016 ip6addrctl_policy="ipv6_prefer". 1017 101820100913: 1019 DTrace has grown support for userland tracing. Due to this, DTrace is 1020 now i386 and amd64 only. 1021 dtruss(1) is now installed by default on those systems and a new 1022 kernel module is needed for userland tracing: fasttrap. 1023 No changes to your kernel config file are necessary to enable 1024 userland tracing, but you might consider adding 'STRIP=' and 1025 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1026 to have informative userland stack traces in DTrace (ustack). 1027 102820100725: 1029 The acpi_aiboost(4) driver has been removed in favor of the new 1030 aibs(4) driver. You should update your kernel configuration file. 1031 103220100722: 1033 BSD grep has been imported to the base system and it is built by 1034 default. It is completely BSD licensed, highly GNU-compatible, uses 1035 less memory than its GNU counterpart and has a small codebase. 1036 However, it is slower than its GNU counterpart, which is mostly 1037 noticeable for larger searches, for smaller ones it is measurable 1038 but not significant. The reason is complex, the most important factor 1039 is that we lack a modern and efficient regex library and GNU 1040 overcomes this by optimizing the searches internally. Future work 1041 on improving the regex performance is planned, for the meantime, 1042 users that need better performance, can build GNU grep instead by 1043 setting the WITH_GNU_GREP knob. 1044 104520100713: 1046 Due to the import of powerpc64 support, all existing powerpc kernel 1047 configuration files must be updated with a machine directive like this: 1048 machine powerpc powerpc 1049 1050 In addition, an updated config(8) is required to build powerpc kernels 1051 after this change. 1052 105320100713: 1054 A new version of ZFS (version 15) has been merged to -HEAD. 1055 This version uses a python library for the following subcommands: 1056 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1057 For full functionality of these commands the following port must 1058 be installed: sysutils/py-zfs 1059 106020100429: 1061 'vm_page's are now hashed by physical address to an array of mutexes. 1062 Currently this is only used to serialize access to hold_count. Over 1063 time the page queue mutex will be peeled away. This changes the size 1064 of pmap on every architecture. And requires all callers of vm_page_hold 1065 and vm_page_unhold to be updated. 1066 106720100402: 1068 WITH_CTF can now be specified in src.conf (not recommended, there 1069 are some problems with static executables), make.conf (would also 1070 affect ports which do not use GNU make and do not override the 1071 compile targets) or in the kernel config (via "makeoptions 1072 WITH_CTF=yes"). 1073 When WITH_CTF was specified there before this was silently ignored, 1074 so make sure that WITH_CTF is not used in places which could lead 1075 to unwanted behavior. 1076 107720100311: 1078 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1079 to allow 32-bit compatibility on non-x86 platforms. All kernel 1080 configurations on amd64 and ia64 platforms using these options must 1081 be modified accordingly. 1082 108320100113: 1084 The utmp user accounting database has been replaced with utmpx, 1085 the user accounting interface standardized by POSIX. 1086 Unfortunately the semantics of utmp and utmpx don't match, 1087 making it practically impossible to support both interfaces. 1088 The user accounting database is used by tools like finger(1), 1089 last(1), talk(1), w(1) and ac(8). 1090 1091 All applications in the base system use utmpx. This means only 1092 local binaries (e.g. from the ports tree) may still use these 1093 utmp database files. These applications must be rebuilt to make 1094 use of utmpx. 1095 1096 After the system has been upgraded, it is safe to remove the old 1097 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1098 assuming their contents is of no importance anymore. Old wtmp 1099 databases can only be used by last(1) and ac(8) after they have 1100 been converted to the new format using wtmpcvt(1). 1101 110220100108: 1103 Introduce the kernel thread "deadlock resolver" (which can be enabled 1104 via the DEADLKRES option, see NOTES for more details) and the 1105 sleepq_type() function for sleepqueues. 1106 110720091202: 1108 The rc.firewall and rc.firewall6 were unified, and 1109 rc.firewall6 and rc.d/ip6fw were removed. 1110 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1111 variables are obsoleted. Instead, the following new rc 1112 variables are added to rc.d/ipfw: 1113 1114 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1115 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1116 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1117 1118 The meanings correspond to the relevant IPv4 variables. 1119 112020091125: 1121 8.0-RELEASE. 1122 112320091113: 1124 The default terminal emulation for syscons(4) has been changed 1125 from cons25 to xterm on all platforms except pc98. This means 1126 that the /etc/ttys file needs to be updated to ensure correct 1127 operation of applications on the console. 1128 1129 The terminal emulation style can be toggled per window by using 1130 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1131 options can be used to change the compile-time default back to 1132 cons25. 1133 1134 To prevent graphical artifacts, make sure the TERM environment 1135 variable is set to match the terminal emulation that is being 1136 performed by syscons(4). 1137 113820091109: 1139 The layout of the structure ieee80211req_scan_result has changed. 1140 Applications that require wireless scan results (e.g. ifconfig(8)) 1141 from net80211 need to be recompiled. 1142 1143 Applications such as wpa_supplicant(8) may require a full world 1144 build without using NO_CLEAN in order to get synchronized with the 1145 new structure. 1146 114720091025: 1148 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1149 There's one kernel module for each firmware. Adding "device iwnfw" 1150 to the kernel configuration file means including all three firmware 1151 images inside the kernel. If you want to include just the one for 1152 your wireless card, use the devices iwn4965fw, iwn5000fw or 1153 iwn5150fw. 1154 115520090926: 1156 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1157 into rc.d/netif. The changes are the following: 1158 1159 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1160 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1161 Note that both variables need the "inet6" keyword at the head. 1162 1163 Do not set $ipv6_network_interfaces manually if you do not 1164 understand what you are doing. It is not needed in most cases. 1165 1166 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1167 they are obsolete. 1168 1169 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1170 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1171 1172 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1173 all configured interfaces have "inet6 accept_rtadv" in the 1174 $ifconfig_IF_ipv6. These are for backward compatibility. 1175 1176 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1177 functionality of interfaces with no corresponding 1178 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1179 and the default address selection policy of ip6addrctl(8) 1180 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1181 Note that if you want to configure IPv6 functionality on the 1182 disabled interfaces after boot, first you need to clear the flag by 1183 using ifconfig(8) like: 1184 1185 ifconfig em0 inet6 -ifdisabled 1186 1187 If YES, the default address selection policy is set as 1188 IPv6-preferred. 1189 1190 The default value of $ipv6_prefer is NO. 1191 1192 4. If your system need to receive Router Advertisement messages, 1193 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1194 scripts automatically invoke rtsol(8) when the interface becomes 1195 UP. The Router Advertisement messages are used for SLAAC 1196 (State-Less Address AutoConfiguration). 1197 119820090922: 1199 802.11s D3.03 support was committed. This is incompatible with the 1200 previous code, which was based on D3.0. 1201 120220090912: 1203 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1204 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1205 control whether accepting Router Advertisement messages or not. 1206 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1207 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1208 The ifconfig(8) utility now supports these flags. 1209 121020090910: 1211 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1212 mount(8) and -a option for df(1) to see them. 1213 121420090825: 1215 The old tunable hw.bus.devctl_disable has been superseded by 1216 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1217 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1218 is 1000. 1219 122020090813: 1221 Remove the option STOP_NMI. The default action is now to use NMI only 1222 for KDB via the newly introduced function stop_cpus_hard() and 1223 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1224 122520090803: 1226 The stable/8 branch created in subversion. This corresponds to the 1227 RELENG_8 branch in CVS. 1228 122920090719: 1230 Bump the shared library version numbers for all libraries that do not 1231 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1232 __FreeBSD_version to 800105. 1233 123420090714: 1235 Due to changes in the implementation of virtual network stack support, 1236 all network-related kernel modules must be recompiled. As this change 1237 breaks the ABI, bump __FreeBSD_version to 800104. 1238 123920090713: 1240 The TOE interface to the TCP syncache has been modified to remove 1241 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1242 The cxgb driver is the only TOE consumer affected by this change, and 1243 needs to be recompiled along with the kernel. As this change breaks 1244 the ABI, bump __FreeBSD_version to 800103. 1245 124620090712: 1247 Padding has been added to struct tcpcb, sackhint and tcpstat in 1248 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1249 maintaining the ABI. However, this change breaks the ABI, so bump 1250 __FreeBSD_version to 800102. User space tools that rely on the size of 1251 any of these structs (e.g. sockstat) need to be recompiled. 1252 125320090630: 1254 The NFS_LEGACYRPC option has been removed along with the old kernel 1255 RPC implementation that this option selected. Kernel configurations 1256 may need to be adjusted. 1257 125820090629: 1259 The network interface device nodes at /dev/net/<interface> have been 1260 removed. All ioctl operations can be performed the normal way using 1261 routing sockets. The kqueue functionality can generally be replaced 1262 with routing sockets. 1263 126420090628: 1265 The documentation from the FreeBSD Documentation Project (Handbook, 1266 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1267 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1268 126920090624: 1270 The ABI of various structures related to the SYSV IPC API have been 1271 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1272 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1273 800100. 1274 127520090622: 1276 Layout of struct vnet has changed as routing related variables were 1277 moved to their own Vimage module. Modules need to be recompiled. Bump 1278 __FreeBSD_version to 800099. 1279 128020090619: 1281 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1282 respectively. As long as no more than 16 groups per process are used, 1283 no changes should be visible. When more than 16 groups are used, old 1284 binaries may fail if they call getgroups() or getgrouplist() with 1285 statically sized storage. Recompiling will work around this, but 1286 applications should be modified to use dynamically allocated storage 1287 for group arrays as POSIX.1-2008 does not cap an implementation's 1288 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1289 1290 NFS and portalfs mounts may also be affected as the list of groups is 1291 truncated to 16. Users of NFS who use more than 16 groups, should 1292 take care that negative group permissions are not used on the exported 1293 file systems as they will not be reliable unless a GSSAPI based 1294 authentication method is used. 1295 129620090616: 1297 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1298 option compiles in the support for adaptive spinning for lockmgrs 1299 which want to enable it. The lockinit() function now accepts the flag 1300 LK_ADAPTIVE in order to make the lock object subject to adaptive 1301 spinning when both held in write and read mode. 1302 130320090613: 1304 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1305 changed. User applications that use this ioctl need to be rebuilt. 1306 130720090611: 1308 The layout of struct thread has changed. Kernel and modules need to 1309 be rebuilt. 1310 131120090608: 1312 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1313 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1314 131520090602: 1316 window(1) has been removed from the base system. It can now be 1317 installed from ports. The port is called misc/window. 1318 131920090601: 1320 The way we are storing and accessing `routing table' entries has 1321 changed. Programs reading the FIB, like netstat, need to be 1322 re-compiled. 1323 132420090601: 1325 A new netisr implementation has been added for FreeBSD 8. Network 1326 file system modules, such as igmp, ipdivert, and others, should be 1327 rebuilt. 1328 Bump __FreeBSD_version to 800096. 1329 133020090530: 1331 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1332 more valid. 1333 133420090530: 1335 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1336 Bump __FreeBSD_version to 800094. 1337 133820090529: 1339 Add mnt_xflag field to 'struct mount'. File system modules need to be 1340 rebuilt. 1341 Bump __FreeBSD_version to 800093. 1342 134320090528: 1344 The compiling option ADAPTIVE_SX has been retired while it has been 1345 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1346 The KPI for sx_init_flags() changes as accepting flags: 1347 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1348 been introduced in order to handle the reversed logic. 1349 Bump __FreeBSD_version to 800092. 1350 135120090527: 1352 Add support for hierarchical jails. Remove global securelevel. 1353 Bump __FreeBSD_version to 800091. 1354 135520090523: 1356 The layout of struct vnet_net has changed, therefore modules 1357 need to be rebuilt. 1358 Bump __FreeBSD_version to 800090. 1359 136020090523: 1361 The newly imported zic(8) produces a new format in the output. Please 1362 run tzsetup(8) to install the newly created data to /etc/localtime. 1363 136420090520: 1365 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1366 hw.usb.* and is now consistent again with previous releases. 1367 136820090520: 1369 802.11 monitor mode support was revised and driver api's were changed. 1370 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1371 of DLT_IEEE802_11. No user-visible data structures were changed but 1372 applications that use DLT_IEEE802_11 may require changes. 1373 Bump __FreeBSD_version to 800088. 1374 137520090430: 1376 The layout of the following structs has changed: sysctl_oid, 1377 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1378 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1379 panics may be experienced. World rebuild is required for 1380 correctly checking networking state from userland. 1381 Bump __FreeBSD_version to 800085. 1382 138320090429: 1384 MLDv2 and Source-Specific Multicast (SSM) have been merged 1385 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1386 The implementation of SSM within FreeBSD's IPv6 stack closely 1387 follows the IPv4 implementation. 1388 1389 For kernel developers: 1390 1391 * The most important changes are that the ip6_output() and 1392 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1393 and this lock has been downgraded to a non-recursive mutex. 1394 1395 * As with the changes to the IPv4 stack to support SSM, filtering 1396 of inbound multicast traffic must now be performed by transport 1397 protocols within the IPv6 stack. This does not apply to TCP and 1398 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1399 1400 * The KPIs used by IPv6 multicast are similar to those used by 1401 the IPv4 stack, with the following differences: 1402 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1403 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1404 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1405 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1406 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1407 for MLDv1 have an additional 'timer' argument which is used to 1408 jitter the initial membership report for the solicited-node 1409 multicast membership on-link. 1410 * This is not strictly needed for MLDv2, which already jitters 1411 its report transmissions. However, the 'timer' argument is 1412 preserved in case MLDv1 is active on the interface. 1413 1414 * The KAME linked-list based IPv6 membership implementation has 1415 been refactored to use a vector similar to that used by the IPv4 1416 stack. 1417 Code which maintains a list of its own multicast memberships 1418 internally, e.g. carp, has been updated to reflect the new 1419 semantics. 1420 1421 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1422 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1423 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1424 implementation constraint which needs to be addressed in HEAD. 1425 1426 For application developers: 1427 1428 * The changes are broadly similar to those made for the IPv4 1429 stack. 1430 1431 * The use of IPv4 and IPv6 multicast socket options on the same 1432 socket, using mapped addresses, HAS NOT been tested or supported. 1433 1434 * There are a number of issues with the implementation of various 1435 IPv6 multicast APIs which need to be resolved in the API surface 1436 before the implementation is fully compatible with KAME userland 1437 use, and these are mostly to do with interface index treatment. 1438 1439 * The literature available discusses the use of either the delta / ASM 1440 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1441 using setsourcefilter(3)/getsourcefilter(3). For more information 1442 please refer to RFC 3768, 'Socket Interface Extensions for 1443 Multicast Source Filters'. 1444 1445 * Applications which use the published RFC 3678 APIs should be fine. 1446 1447 For systems administrators: 1448 1449 * The mtest(8) utility has been refactored to support IPv6, in 1450 addition to IPv4. Interface addresses are no longer accepted 1451 as arguments, their names must be used instead. The utility 1452 will map the interface name to its first IPv4 address as 1453 returned by getifaddrs(3). 1454 1455 * The ifmcstat(8) utility has also been updated to print the MLDv2 1456 endpoint state and source filter lists via sysctl(3). 1457 1458 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1459 loopback of IPv6 multicast datagrams by default; it defaults to 1 1460 to preserve the existing behaviour. Disabling multicast loopback is 1461 recommended for optimal system performance. 1462 1463 * The IPv6 MROUTING code has been changed to examine this sysctl 1464 instead of attempting to perform a group lookup before looping 1465 back forwarded datagrams. 1466 1467 Bump __FreeBSD_version to 800084. 1468 146920090422: 1470 Implement low-level Bluetooth HCI API. 1471 Bump __FreeBSD_version to 800083. 1472 147320090419: 1474 The layout of struct malloc_type, used by modules to register new 1475 memory allocation types, has changed. Most modules will need to 1476 be rebuilt or panics may be experienced. 1477 Bump __FreeBSD_version to 800081. 1478 147920090415: 1480 Anticipate overflowing inp_flags - add inp_flags2. 1481 This changes most offsets in inpcb, so checking v4 connection 1482 state will require a world rebuild. 1483 Bump __FreeBSD_version to 800080. 1484 148520090415: 1486 Add an llentry to struct route and struct route_in6. Modules 1487 embedding a struct route will need to be recompiled. 1488 Bump __FreeBSD_version to 800079. 1489 149020090414: 1491 The size of rt_metrics_lite and by extension rtentry has changed. 1492 Networking administration apps will need to be recompiled. 1493 The route command now supports show as an alias for get, weighting 1494 of routes, sticky and nostick flags to alter the behavior of stateful 1495 load balancing. 1496 Bump __FreeBSD_version to 800078. 1497 149820090408: 1499 Do not use Giant for kbdmux(4) locking. This is wrong and 1500 apparently causing more problems than it solves. This will 1501 re-open the issue where interrupt handlers may race with 1502 kbdmux(4) in polling mode. Typical symptoms include (but 1503 not limited to) duplicated and/or missing characters when 1504 low level console functions (such as gets) are used while 1505 interrupts are enabled (for example geli password prompt, 1506 mountroot prompt etc.). Disabling kbdmux(4) may help. 1507 150820090407: 1509 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1510 kernel modules referencing any of the above need to be recompiled. 1511 Bump __FreeBSD_version to 800075. 1512 151320090320: 1514 GEOM_PART has become the default partition slicer for storage devices, 1515 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1516 introduces some changes: 1517 1518 MSDOS/EBR: the devices created from MSDOS extended partition entries 1519 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1520 to devices with offset-based names. fstabs may need to be modified. 1521 1522 BSD: the "geometry does not match label" warning is harmless in most 1523 cases but it points to problems in file system misalignment with 1524 disk geometry. The "c" partition is now implicit, covers the whole 1525 top-level drive and cannot be (mis)used by users. 1526 1527 General: Kernel dumps are now not allowed to be written to devices 1528 whose partition types indicate they are meant to be used for file 1529 systems (or, in case of MSDOS partitions, as something else than 1530 the "386BSD" type). 1531 1532 Most of these changes date approximately from 200812. 1533 153420090319: 1535 The uscanner(4) driver has been removed from the kernel. This follows 1536 Linux removing theirs in 2.6 and making libusb the default interface 1537 (supported by sane). 1538 153920090319: 1540 The multicast forwarding code has been cleaned up. netstat(1) 1541 only relies on KVM now for printing bandwidth upcall meters. 1542 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1543 ip6_mroute_mod respectively. The config(5) options for statically 1544 compiling this code remain the same, i.e. 'options MROUTING'. 1545 154620090315: 1547 Support for the IFF_NEEDSGIANT network interface flag has been 1548 removed, which means that non-MPSAFE network device drivers are no 1549 longer supported. In particular, if_ar, if_sr, and network device 1550 drivers from the old (legacy) USB stack can no longer be built or 1551 used. 1552 155320090313: 1554 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1555 a bunch of new language catalog files have also been added. 1556 This means that some common libc messages are now localized and 1557 they depend on the LC_MESSAGES environmental variable. 1558 155920090313: 1560 The k8temp(4) driver has been renamed to amdtemp(4) since 1561 support for Family 10 and Family 11 CPU families was added. 1562 156320090309: 1564 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1565 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1566 1567 For kernel developers, the most important changes are that the 1568 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1569 and this lock has been downgraded to a non-recursive mutex. 1570 1571 Transport protocols (UDP, Raw IP) are now responsible for filtering 1572 inbound multicast traffic according to group membership and source 1573 filters. The imo_multicast_filter() KPI exists for this purpose. 1574 Transports which do not use multicast (SCTP, TCP) already reject 1575 multicast by default. Forwarding and receive performance may improve 1576 as a mutex acquisition is no longer needed in the ip_input() 1577 low-level input path. in_addmulti() and in_delmulti() are shimmed 1578 to new KPIs which exist to support SSM in-kernel. 1579 1580 For application developers, it is recommended that loopback of 1581 multicast datagrams be disabled for best performance, as this 1582 will still cause the lock to be taken for each looped-back 1583 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1584 be tuned to 0 to disable loopback by default; it defaults to 1 1585 to preserve the existing behaviour. 1586 1587 For systems administrators, to obtain best performance with 1588 multicast reception and multiple groups, it is always recommended 1589 that a card with a suitably precise hash filter is used. Hash 1590 collisions will still result in the lock being taken within the 1591 transport protocol input path to check group membership. 1592 1593 If deploying FreeBSD in an environment with IGMP snooping switches, 1594 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1595 enabled; this forces 224.0.0.0/24 group membership to be announced 1596 via IGMP. 1597 1598 The size of 'struct igmpstat' has changed; netstat needs to be 1599 recompiled to reflect this. 1600 Bump __FreeBSD_version to 800070. 1601 160220090309: 1603 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1604 updated to use it. This requires a buildworld/installworld in order to 1605 update the library and dependencies (usbconfig, etc). Its advisable to 1606 rebuild all ports which uses libusb. More specific directions are given 1607 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1608 libusb are no longer required and can be removed. 1609 161020090302: 1611 A workaround is committed to allow the creation of System V shared 1612 memory segment of size > 2 GB on the 64-bit architectures. 1613 Due to a limitation of the existing ABI, the shm_segsz member 1614 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1615 wrong for large segments. Note that limits must be explicitly 1616 raised to allow such segments to be created. 1617 161820090301: 1619 The layout of struct ifnet has changed, requiring a rebuild of all 1620 network device driver modules. 1621 162220090227: 1623 The /dev handling for the new USB stack has changed, a 1624 buildworld/installworld is required for libusb20. 1625 162620090223: 1627 The new USB2 stack has now been permanently moved in and all kernel and 1628 module names reverted to their previous values (eg, usb, ehci, ohci, 1629 ums, ...). The old usb stack can be compiled in by prefixing the name 1630 with the letter 'o', the old usb modules have been removed. 1631 Updating entry 20090216 for xorg and 20090215 for libmap may still 1632 apply. 1633 163420090217: 1635 The rc.conf(5) option if_up_delay has been renamed to 1636 defaultroute_delay to better reflect its purpose. If you have 1637 customized this setting in /etc/rc.conf you need to update it to 1638 use the new name. 1639 164020090216: 1641 xorg 7.4 wants to configure its input devices via hald which does not 1642 yet work with USB2. If the keyboard/mouse does not work in xorg then 1643 add 1644 Option "AllowEmptyInput" "off" 1645 to your ServerLayout section. This will cause X to use the configured 1646 kbd and mouse sections from your xorg.conf. 1647 164820090215: 1649 The GENERIC kernels for all architectures now default to the new USB2 1650 stack. No kernel config options or code have been removed so if a 1651 problem arises please report it and optionally revert to the old USB 1652 stack. If you are loading USB kernel modules or have a custom kernel 1653 that includes GENERIC then ensure that usb names are also changed over, 1654 eg uftdi -> usb2_serial_ftdi. 1655 1656 Older programs linked against the ports libusb 0.1 need to be 1657 redirected to the new stack's libusb20. /etc/libmap.conf can 1658 be used for this: 1659 # Map old usb library to new one for usb2 stack 1660 libusb-0.1.so.8 libusb20.so.1 1661 166220090209: 1663 All USB ethernet devices now attach as interfaces under the name ueN 1664 (eg. ue0). This is to provide a predictable name as vendors often 1665 change usb chipsets in a product without notice. 1666 166720090203: 1668 The ichsmb(4) driver has been changed to require SMBus slave 1669 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1670 All of the other SMBus controller drivers require left-justified 1671 slave addresses, so this change makes all the drivers provide the 1672 same interface. 1673 167420090201: 1675 INET6 statistics (struct ip6stat) was updated. 1676 netstat(1) needs to be recompiled. 1677 167820090119: 1679 NTFS has been removed from GENERIC kernel on amd64 to match 1680 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1681 will load ntfs.ko module automatically when NTFS support is 1682 actually needed, unless ntfs.ko is not installed or security 1683 level prohibits loading kernel modules. If either is the case, 1684 "options NTFS" has to be added into kernel config. 1685 168620090115: 1687 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1688 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1689 800061. User space tools that rely on the size of struct tcpcb in 1690 tcp_var.h (e.g. sockstat) need to be recompiled. 1691 169220081225: 1693 ng_tty(4) module updated to match the new TTY subsystem. 1694 Due to API change, user-level applications must be updated. 1695 New API support added to mpd5 CVS and expected to be present 1696 in next mpd5.3 release. 1697 169820081219: 1699 With __FreeBSD_version 800060 the makefs tool is part of 1700 the base system (it was a port). 1701 170220081216: 1703 The afdata and ifnet locks have been changed from mutexes to 1704 rwlocks, network modules will need to be re-compiled. 1705 170620081214: 1707 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1708 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1709 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1710 architecture and 40 bytes on 64-bit architecture. The userland 1711 applications "arp" and "ndp" have been updated accordingly. 1712 The output from "netstat -r" shows only routing entries and 1713 none of the L2 information. 1714 171520081130: 1716 __FreeBSD_version 800057 marks the switchover from the 1717 binary ath hal to source code. Users must add the line: 1718 1719 options AH_SUPPORT_AR5416 1720 1721 to their kernel config files when specifying: 1722 1723 device ath_hal 1724 1725 The ath_hal module no longer exists; the code is now compiled 1726 together with the driver in the ath module. It is now 1727 possible to tailor chip support (i.e. reduce the set of chips 1728 and thereby the code size); consult ath_hal(4) for details. 1729 173020081121: 1731 __FreeBSD_version 800054 adds memory barriers to 1732 <machine/atomic.h>, new interfaces to ifnet to facilitate 1733 multiple hardware transmit queues for cards that support 1734 them, and a lock-less ring-buffer implementation to 1735 enable drivers to more efficiently manage queueing of 1736 packets. 1737 173820081117: 1739 A new version of ZFS (version 13) has been merged to -HEAD. 1740 This version has zpool attribute "listsnapshots" off by 1741 default, which means "zfs list" does not show snapshots, 1742 and is the same as Solaris behavior. 1743 174420081028: 1745 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1746 174720081009: 1748 The uhci, ohci, ehci and slhci USB Host controller drivers have 1749 been put into separate modules. If you load the usb module 1750 separately through loader.conf you will need to load the 1751 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1752 controller add the following to loader.conf: 1753 1754 uhci_load="YES" 1755 ehci_load="YES" 1756 175720081009: 1758 The ABI used by the PMC toolset has changed. Please keep 1759 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1760 sync. 1761 176220081009: 1763 atapci kernel module now includes only generic PCI ATA 1764 driver. AHCI driver moved to ataahci kernel module. 1765 All vendor-specific code moved into separate kernel modules: 1766 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1767 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1768 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1769 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1770 177120080820: 1772 The TTY subsystem of the kernel has been replaced by a new 1773 implementation, which provides better scalability and an 1774 improved driver model. Most common drivers have been migrated to 1775 the new TTY subsystem, while others have not. The following 1776 drivers have not yet been ported to the new TTY layer: 1777 1778 PCI/ISA: 1779 cy, digi, rc, rp, sio 1780 1781 USB: 1782 ubser, ucycom 1783 1784 Line disciplines: 1785 ng_h4, ng_tty, ppp, sl, snp 1786 1787 Adding these drivers to your kernel configuration file shall 1788 cause compilation to fail. 1789 179020080818: 1791 ntpd has been upgraded to 4.2.4p5. 1792 179320080801: 1794 OpenSSH has been upgraded to 5.1p1. 1795 1796 For many years, FreeBSD's version of OpenSSH preferred DSA 1797 over RSA for host and user authentication keys. With this 1798 upgrade, we've switched to the vendor's default of RSA over 1799 DSA. This may cause upgraded clients to warn about unknown 1800 host keys even for previously known hosts. Users should 1801 follow the usual procedure for verifying host keys before 1802 accepting the RSA key. 1803 1804 This can be circumvented by setting the "HostKeyAlgorithms" 1805 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1806 command line. 1807 1808 Please note that the sequence of keys offered for 1809 authentication has been changed as well. You may want to 1810 specify IdentityFile in a different order to revert this 1811 behavior. 1812 181320080713: 1814 The sio(4) driver has been removed from the i386 and amd64 1815 kernel configuration files. This means uart(4) is now the 1816 default serial port driver on those platforms as well. 1817 1818 To prevent collisions with the sio(4) driver, the uart(4) driver 1819 uses different names for its device nodes. This means the 1820 onboard serial port will now most likely be called "ttyu0" 1821 instead of "ttyd0". You may need to reconfigure applications to 1822 use the new device names. 1823 1824 When using the serial port as a boot console, be sure to update 1825 /boot/device.hints and /etc/ttys before booting the new kernel. 1826 If you forget to do so, you can still manually specify the hints 1827 at the loader prompt: 1828 1829 set hint.uart.0.at="isa" 1830 set hint.uart.0.port="0x3F8" 1831 set hint.uart.0.flags="0x10" 1832 set hint.uart.0.irq="4" 1833 boot -s 1834 183520080609: 1836 The gpt(8) utility has been removed. Use gpart(8) to partition 1837 disks instead. 1838 183920080603: 1840 The version that Linuxulator emulates was changed from 2.4.2 1841 to 2.6.16. If you experience any problems with Linux binaries 1842 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1843 if it fixes the problem contact emulation mailing list. 1844 184520080525: 1846 ISDN4BSD (I4B) was removed from the src tree. You may need to 1847 update a your kernel configuration and remove relevant entries. 1848 184920080509: 1850 I have checked in code to support multiple routing tables. 1851 See the man pages setfib(1) and setfib(2). 1852 This is a hopefully backwards compatible version, 1853 but to make use of it you need to compile your kernel 1854 with options ROUTETABLES=2 (or more up to 16). 1855 185620080420: 1857 The 802.11 wireless support was redone to enable multi-bss 1858 operation on devices that are capable. The underlying device 1859 is no longer used directly but instead wlanX devices are 1860 cloned with ifconfig. This requires changes to rc.conf files. 1861 For example, change: 1862 ifconfig_ath0="WPA DHCP" 1863 to 1864 wlans_ath0=wlan0 1865 ifconfig_wlan0="WPA DHCP" 1866 see rc.conf(5) for more details. In addition, mergemaster of 1867 /etc/rc.d is highly recommended. Simultaneous update of userland 1868 and kernel wouldn't hurt either. 1869 1870 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1871 modules were merged into the base wlan module. All references 1872 to these modules (e.g. in kernel config files) must be removed. 1873 187420080408: 1875 psm(4) has gained write(2) support in native operation level. 1876 Arbitrary commands can be written to /dev/psm%d and status can 1877 be read back from it. Therefore, an application is responsible 1878 for status validation and error recovery. It is a no-op in 1879 other operation levels. 1880 188120080312: 1882 Support for KSE threading has been removed from the kernel. To 1883 run legacy applications linked against KSE libmap.conf may 1884 be used. The following libmap.conf may be used to ensure 1885 compatibility with any prior release: 1886 1887 libpthread.so.1 libthr.so.1 1888 libpthread.so.2 libthr.so.2 1889 libkse.so.3 libthr.so.3 1890 189120080301: 1892 The layout of struct vmspace has changed. This affects libkvm 1893 and any executables that link against libkvm and use the 1894 kvm_getprocs() function. In particular, but not exclusively, 1895 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1896 The effects are minimal, but it's advisable to upgrade world 1897 nonetheless. 1898 189920080229: 1900 The latest em driver no longer has support in it for the 1901 82575 adapter, this is now moved to the igb driver. The 1902 split was done to make new features that are incompatible 1903 with older hardware easier to do. 1904 190520080220: 1906 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1907 likewise the kernel option is now GEOM_LINUX_LVM. 1908 190920080211: 1910 The default NFS mount mode has changed from UDP to TCP for 1911 increased reliability. If you rely on (insecurely) NFS 1912 mounting across a firewall you may need to update your 1913 firewall rules. 1914 191520080208: 1916 Belatedly note the addition of m_collapse for compacting 1917 mbuf chains. 1918 191920080126: 1920 The fts(3) structures have been changed to use adequate 1921 integer types for their members and so to be able to cope 1922 with huge file trees. The old fts(3) ABI is preserved 1923 through symbol versioning in libc, so third-party binaries 1924 using fts(3) should still work, although they will not take 1925 advantage of the extended types. At the same time, some 1926 third-party software might fail to build after this change 1927 due to unportable assumptions made in its source code about 1928 fts(3) structure members. Such software should be fixed 1929 by its vendor or, in the worst case, in the ports tree. 1930 FreeBSD_version 800015 marks this change for the unlikely 1931 case that a portable fix is impossible. 1932 193320080123: 1934 To upgrade to -current after this date, you must be running 1935 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1936 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1937 193820071128: 1939 The ADAPTIVE_GIANT kernel option has been retired because its 1940 functionality is the default now. 1941 194220071118: 1943 The AT keyboard emulation of sunkbd(4) has been turned on 1944 by default. In order to make the special symbols of the Sun 1945 keyboards driven by sunkbd(4) work under X these now have 1946 to be configured the same way as Sun USB keyboards driven 1947 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1948 1949 Option "XkbLayout" "us" 1950 Option "XkbRules" "xorg" 1951 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1952 195320071024: 1954 It has been decided that it is desirable to provide ABI 1955 backwards compatibility to the FreeBSD 4/5/6 versions of the 1956 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1957 broken with the introduction of PCI domain support (see the 1958 20070930 entry). Unfortunately, this required the ABI of 1959 PCIOCGETCONF to be broken again in order to be able to 1960 provide backwards compatibility to the old version of that 1961 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1962 again. As for prominent ports this affects neither pciutils 1963 nor xorg-server this time, the hal port needs to be rebuilt 1964 however. 1965 196620071020: 1967 The misnamed kthread_create() and friends have been renamed 1968 to kproc_create() etc. Many of the callers already 1969 used kproc_start().. 1970 I will return kthread_create() and friends in a while 1971 with implementations that actually create threads, not procs. 1972 Renaming corresponds with version 800002. 1973 197420071010: 1975 RELENG_7 branched. 1976 1977COMMON ITEMS: 1978 1979 General Notes 1980 ------------- 1981 Avoid using make -j when upgrading. While generally safe, there are 1982 sometimes problems using -j to upgrade. If your upgrade fails with 1983 -j, please try again without -j. From time to time in the past there 1984 have been problems using -j with buildworld and/or installworld. This 1985 is especially true when upgrading between "distant" versions (eg one 1986 that cross a major release boundary or several minor releases, or when 1987 several months have passed on the -current branch). 1988 1989 Sometimes, obscure build problems are the result of environment 1990 poisoning. This can happen because the make utility reads its 1991 environment when searching for values for global variables. To run 1992 your build attempts in an "environmental clean room", prefix all make 1993 commands with 'env -i '. See the env(1) manual page for more details. 1994 1995 When upgrading from one major version to another it is generally best 1996 to upgrade to the latest code in the currently installed branch first, 1997 then do an upgrade to the new branch. This is the best-tested upgrade 1998 path, and has the highest probability of being successful. Please try 1999 this approach before reporting problems with a major version upgrade. 2000 2001 When upgrading a live system, having a root shell around before 2002 installing anything can help undo problems. Not having a root shell 2003 around can lead to problems if pam has changed too much from your 2004 starting point to allow continued authentication after the upgrade. 2005 2006 ZFS notes 2007 --------- 2008 When upgrading the boot ZFS pool to a new version, always follow 2009 these two steps: 2010 2011 1.) recompile and reinstall the ZFS boot loader and boot block 2012 (this is part of "make buildworld" and "make installworld") 2013 2014 2.) update the ZFS boot block on your boot drive 2015 2016 The following example updates the ZFS boot block on the first 2017 partition (freebsd-boot) of a GPT partitioned drive ad0: 2018 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2019 2020 Non-boot pools do not need these updates. 2021 2022 To build a kernel 2023 ----------------- 2024 If you are updating from a prior version of FreeBSD (even one just 2025 a few days old), you should follow this procedure. It is the most 2026 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2027 2028 make kernel-toolchain 2029 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2030 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2031 2032 To test a kernel once 2033 --------------------- 2034 If you just want to boot a kernel once (because you are not sure 2035 if it works, or if you want to boot a known bad kernel to provide 2036 debugging information) run 2037 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2038 nextboot -k testkernel 2039 2040 To just build a kernel when you know that it won't mess you up 2041 -------------------------------------------------------------- 2042 This assumes you are already running a CURRENT system. Replace 2043 ${arch} with the architecture of your machine (e.g. "i386", 2044 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2045 2046 cd src/sys/${arch}/conf 2047 config KERNEL_NAME_HERE 2048 cd ../compile/KERNEL_NAME_HERE 2049 make depend 2050 make 2051 make install 2052 2053 If this fails, go to the "To build a kernel" section. 2054 2055 To rebuild everything and install it on the current system. 2056 ----------------------------------------------------------- 2057 # Note: sometimes if you are running current you gotta do more than 2058 # is listed here if you are upgrading from a really old current. 2059 2060 <make sure you have good level 0 dumps> 2061 make buildworld 2062 make kernel KERNCONF=YOUR_KERNEL_HERE 2063 [1] 2064 <reboot in single user> [3] 2065 mergemaster -p [5] 2066 make installworld 2067 mergemaster -i [4] 2068 make delete-old [6] 2069 <reboot> 2070 2071 To cross-install current onto a separate partition 2072 -------------------------------------------------- 2073 # In this approach we use a separate partition to hold 2074 # current's root, 'usr', and 'var' directories. A partition 2075 # holding "/", "/usr" and "/var" should be about 2GB in 2076 # size. 2077 2078 <make sure you have good level 0 dumps> 2079 <boot into -stable> 2080 make buildworld 2081 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2082 <maybe newfs current's root partition> 2083 <mount current's root partition on directory ${CURRENT_ROOT}> 2084 make installworld DESTDIR=${CURRENT_ROOT} 2085 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2086 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2087 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2088 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2089 <reboot into current> 2090 <do a "native" rebuild/install as described in the previous section> 2091 <maybe install compatibility libraries from ports/misc/compat*> 2092 <reboot> 2093 2094 2095 To upgrade in-place from stable to current 2096 ---------------------------------------------- 2097 <make sure you have good level 0 dumps> 2098 make buildworld [9] 2099 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2100 [1] 2101 <reboot in single user> [3] 2102 mergemaster -p [5] 2103 make installworld 2104 mergemaster -i [4] 2105 make delete-old [6] 2106 <reboot> 2107 2108 Make sure that you've read the UPDATING file to understand the 2109 tweaks to various things you need. At this point in the life 2110 cycle of current, things change often and you are on your own 2111 to cope. The defaults can also change, so please read ALL of 2112 the UPDATING entries. 2113 2114 Also, if you are tracking -current, you must be subscribed to 2115 freebsd-current@freebsd.org. Make sure that before you update 2116 your sources that you have read and understood all the recent 2117 messages there. If in doubt, please track -stable which has 2118 much fewer pitfalls. 2119 2120 [1] If you have third party modules, such as vmware, you 2121 should disable them at this point so they don't crash your 2122 system on reboot. 2123 2124 [3] From the bootblocks, boot -s, and then do 2125 fsck -p 2126 mount -u / 2127 mount -a 2128 cd src 2129 adjkerntz -i # if CMOS is wall time 2130 Also, when doing a major release upgrade, it is required that 2131 you boot into single user mode to do the installworld. 2132 2133 [4] Note: This step is non-optional. Failure to do this step 2134 can result in a significant reduction in the functionality of the 2135 system. Attempting to do it by hand is not recommended and those 2136 that pursue this avenue should read this file carefully, as well 2137 as the archives of freebsd-current and freebsd-hackers mailing lists 2138 for potential gotchas. The -U option is also useful to consider. 2139 See mergemaster(8) for more information. 2140 2141 [5] Usually this step is a noop. However, from time to time 2142 you may need to do this if you get unknown user in the following 2143 step. It never hurts to do it all the time. You may need to 2144 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2145 install) after the buildworld before this step if you last updated 2146 from current before 20130425 or from -stable before 20130430. 2147 2148 [6] This only deletes old files and directories. Old libraries 2149 can be deleted by "make delete-old-libs", but you have to make 2150 sure that no program is using those libraries anymore. 2151 2152 [8] In order to have a kernel that can run the 4.x binaries needed to 2153 do an installworld, you must include the COMPAT_FREEBSD4 option in 2154 your kernel. Failure to do so may leave you with a system that is 2155 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2156 required to run the 5.x binaries on more recent kernels. And so on 2157 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2158 2159 Make sure that you merge any new devices from GENERIC since the 2160 last time you updated your kernel config file. 2161 2162 [9] When checking out sources, you must include the -P flag to have 2163 cvs prune empty directories. 2164 2165 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2166 "?=" instead of the "=" assignment operator, so that buildworld can 2167 override the CPUTYPE if it needs to. 2168 2169 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2170 not on the command line, or in /etc/make.conf. buildworld will 2171 warn if it is improperly defined. 2172FORMAT: 2173 2174This file contains a list, in reverse chronological order, of major 2175breakages in tracking -current. It is not guaranteed to be a complete 2176list of such breakages, and only contains entries since October 10, 2007. 2177If you need to see UPDATING entries from before that date, you will need 2178to fetch an UPDATING file from an older FreeBSD release. 2179 2180Copyright information: 2181 2182Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2183 2184Redistribution, publication, translation and use, with or without 2185modification, in full or in part, in any form or format of this 2186document are permitted without further permission from the author. 2187 2188THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2189IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2190WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2191DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2192INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2193(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2194SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2195HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2196STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2197IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2198POSSIBILITY OF SUCH DAMAGE. 2199 2200Contact Warner Losh if you have any questions about your use of 2201this document. 2202 2203$FreeBSD: stable/10/UPDATING 284404 2015-06-15 04:20:32Z gshapiro $ 2204