UPDATING revision 275814
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 1920141215: 20 At svn r275807, The default linux compat kernel ABI has been adjusted 21 to 2.6.18 in support of the linux-c6 compat ports infrastructure 22 update. If you wish to continue using the linux-f10 compat ports, 23 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 24 encouraged to update their linux-compat packages to linux-c6 during 25 their next update cycle. 26 27 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 28 2920141205: 30 pjdfstest has been integrated into kyua as an opt-in test suite. 31 Please see share/doc/pjdfstest/README for a more details on how to 32 execute it. 33 3420141118: 35 10.1-RELEASE. 36 3720140904: 38 The ofwfb driver, used to provide a graphics console on PowerPC when 39 using vt(4), no longer allows mmap() of all of physical memory. This 40 will prevent Xorg on PowerPC with some ATI graphics cards from 41 initializing properly unless x11-servers/xorg-server is updated to 42 1.12.4_8 or newer. 43 4420140831: 45 The libatf-c and libatf-c++ major versions were downgraded to 0 and 46 1 respectively to match the upstream numbers. They were out of 47 sync because, when they were originally added to FreeBSD, the 48 upstream versions were not respected. These libraries are private 49 and not yet built by default, so renumbering them should be a 50 non-issue. However, unclean source trees will yield broken test 51 programs once the operator executes "make delete-old-libs" after a 52 "make installworld". 53 54 Additionally, the atf-sh binary was made private by moving it into 55 /usr/libexec/. Already-built shell test programs will keep the 56 path to the old binary so they will break after "make delete-old" 57 is run. 58 59 If you are using WITH_TESTS=yes (not the default), wipe the object 60 tree and rebuild from scratch to prevent spurious test failures. 61 This is only needed once: the misnumbered libraries and misplaced 62 binaries have been added to OptionalObsoleteFiles.inc so they will 63 be removed during a clean upgrade. 64 6520140814: 66 The ixgbe tunables now match their sysctl counterparts, for example: 67 hw.ixgbe.enable_aim => hw.ix.enable_aim 68 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 69 7020140801: 71 The NFSv4.1 server committed by r269398 changes the internal 72 function call interfaces used between the NFS and krpc modules. 73 As such, __FreeBSD_version was bumped. 74 7520140729: 76 The default unbound configuration has been modified to address 77 issues with reverse lookups on networks that use private 78 address ranges. If you use the local_unbound service, run 79 "service local_unbound setup" as root to regenerate your 80 configuration, then "service local_unbound reload" to load the 81 new configuration. 82 8320140717: 84 It is no longer necessary to include the dwarf version in your DEBUG 85 options in your kernel config file. The bug that required it to be 86 placed in the config file has bene fixed. DEBUG should now just 87 contain -g. The build system will automatically update things 88 to do the right thing. 89 9020140715: 91 Several ABI breaking changes were merged to CTL and new iSCSI code. 92 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 93 iscsictl need to be rebuilt to work with a new kernel. 94 9520140708: 96 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 97 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 98 which differs from the behaviour controlled by this knob.) 99 10020140608: 101 On i386 and amd64 systems, the onifconsole flag is now set by default 102 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 103 as a login TTY if it is set in the bootloader as an active kernel 104 console. No changes in behavior should result otherwise. To revert to 105 the previous behavior, set ttyu0 to "off" in /etc/ttys. 106 10720140512: 108 Clang and llvm have been upgraded to 3.4.1 release. 109 11020140321: 111 Clang and llvm have been upgraded to 3.4 release. 112 11320140306: 114 If a Makefile in a tests/ directory was auto-generating a Kyuafile 115 instead of providing an explicit one, this would prevent such 116 Makefile from providing its own Kyuafile in the future during 117 NO_CLEAN builds. This has been fixed in the Makefiles but manual 118 intervention is needed to clean an objdir if you use NO_CLEAN: 119 # find /usr/obj -name Kyuafile | xargs rm -f 120 12120140303: 122 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 123 capability mode support. Please note that enabling the feature in 124 kernel is still highly recommended. 125 12620140227: 127 OpenSSH is now built with sandbox support, and will use sandbox as 128 the default privilege separation method. This requires Capsicum 129 capability mode support in kernel. 130 13120140216: 132 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 133 been deprecated and will not be part of FreeBSD 11.0 and later 134 releases. If you use this driver, please consider switching to 135 the nfe(4) driver instead. 136 13720140120: 138 10.0-RELEASE. 139 14020131216: 141 The behavior of gss_pseudo_random() for the krb5 mechanism 142 has changed, for applications requesting a longer random string 143 than produced by the underlying enctype's pseudo-random() function. 144 In particular, the random string produced from a session key of 145 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 146 be different at the 17th octet and later, after this change. 147 The counter used in the PRF+ construction is now encoded as a 148 big-endian integer in accordance with RFC 4402. 149 __FreeBSD_version is bumped to 1000701. 150 15120131108: 152 The WITHOUT_ATF build knob has been removed and its functionality 153 has been subsumed into the more generic WITHOUT_TESTS. If you were 154 using the former to disable the build of the ATF libraries, you 155 should change your settings to use the latter. 156 15720131031: 158 The default version of mtree is nmtree which is obtained from 159 NetBSD. The output is generally the same, but may vary 160 slightly. If you found you need identical output adding 161 "-F freebsd9" to the command line should do the trick. For the 162 time being, the old mtree is available as fmtree. 163 16420131014: 165 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 166 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 167 1.1.4_8 and verify bsdyml not linked in, before running "make 168 delete-old-libs": 169 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 170 or 171 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 172 17320131010: 174 The rc.d/jail script has been updated to support jail(8) 175 configuration file. The "jail_<jname>_*" rc.conf(5) variables 176 for per-jail configuration are automatically converted to 177 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 178 This is transparently backward compatible. See below about some 179 incompatibilities and rc.conf(5) manual page for more details. 180 181 These variables are now deprecated in favor of jail(8) configuration 182 file. One can use "rc.d/jail config <jname>" command to generate 183 a jail(8) configuration file in /var/run/jail.<jname>.conf without 184 running the jail(8) utility. The default pathname of the 185 configuration file is /etc/jail.conf and can be specified by 186 using $jail_conf or $jail_<jname>_conf variables. 187 188 Please note that jail_devfs_ruleset accepts an integer at 189 this moment. Please consider to rewrite the ruleset name 190 with an integer. 191 19220130930: 193 BIND has been removed from the base system. If all you need 194 is a local resolver, simply enable and start the local_unbound 195 service instead. Otherwise, several versions of BIND are 196 available in the ports tree. The dns/bind99 port is one example. 197 198 With this change, nslookup(1) and dig(1) are no longer in the base 199 system. Users should instead use host(1) and drill(1) which are 200 in the base system. Alternatively, nslookup and dig can 201 be obtained by installing the dns/bind-tools port. 202 20320130916: 204 With the addition of unbound(8), a new unbound user is now 205 required during installworld. "mergemaster -p" can be used to 206 add the user prior to installworld, as documented in the handbook. 207 20820130911: 209 OpenSSH is now built with DNSSEC support, and will by default 210 silently trust signed SSHFP records. This can be controlled with 211 the VerifyHostKeyDNS client configuration setting. DNSSEC support 212 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 213 21420130906: 215 The GNU Compiler Collection and C++ standard library (libstdc++) 216 are no longer built by default on platforms where clang is the system 217 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 218 options in src.conf. 219 22020130905: 221 The PROCDESC kernel option is now part of the GENERIC kernel 222 configuration and is required for the rwhod(8) to work. 223 If you are using custom kernel configuration, you should include 224 'options PROCDESC'. 225 22620130905: 227 The API and ABI related to the Capsicum framework was modified 228 in backward incompatible way. The userland libraries and programs 229 have to be recompiled to work with the new kernel. This includes the 230 following libraries and programs, but the whole buildworld is 231 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 232 kdump, procstat, rwho, rwhod, uniq. 233 23420130903: 235 AES-NI intrinsic support has been added to gcc. The AES-NI module 236 has been updated to use this support. A new gcc is required to build 237 the aesni module on both i386 and amd64. 238 23920130821: 240 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 241 Thus "device padlock_rng" and "device rdrand_rng" should be 242 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 243 24420130813: 245 WITH_ICONV has been split into two feature sets. WITH_ICONV now 246 enables just the iconv* functionality and is now on by default. 247 WITH_LIBICONV_COMPAT enables the libiconv api and link time 248 compatability. Set WITHOUT_ICONV to build the old way. 249 If you have been using WITH_ICONV before, you will very likely 250 need to turn on WITH_LIBICONV_COMPAT. 251 25220130806: 253 INVARIANTS option now enables DEBUG for code with OpenSolaris and 254 Illumos origin, including ZFS. If you have INVARIANTS in your 255 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 256 explicitly. 257 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 258 locks if WITNESS option was set. Because that generated a lot of 259 witness(9) reports and all of them were believed to be false 260 positives, this is no longer done. New option OPENSOLARIS_WITNESS 261 can be used to achieve the previous behavior. 262 26320130806: 264 Timer values in IPv6 data structures now use time_uptime instead 265 of time_second. Although this is not a user-visible functional 266 change, userland utilities which directly use them---ndp(8), 267 rtadvd(8), and rtsold(8) in the base system---need to be updated 268 to r253970 or later. 269 27020130802: 271 find -delete can now delete the pathnames given as arguments, 272 instead of only files found below them or if the pathname did 273 not contain any slashes. Formerly, the following error message 274 would result: 275 276 find: -delete: <path>: relative path potentially not safe 277 278 Deleting the pathnames given as arguments can be prevented 279 without error messages using -mindepth 1 or by changing 280 directory and passing "." as argument to find. This works in the 281 old as well as the new version of find. 282 28320130726: 284 Behavior of devfs rules path matching has been changed. 285 Pattern is now always matched against fully qualified devfs 286 path and slash characters must be explicitly matched by 287 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 288 subdirectories must be reviewed. 289 29020130716: 291 The default ARM ABI has changed to the ARM EABI. The old ABI is 292 incompatible with the ARM EABI and all programs and modules will 293 need to be rebuilt to work with a new kernel. 294 295 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 296 297 NOTE: Support for the old ABI will be removed in the future and 298 users are advised to upgrade. 299 30020130709: 301 pkg_install has been disconnected from the build if you really need it 302 you should add WITH_PKGTOOLS in your src.conf(5). 303 30420130709: 305 Most of network statistics structures were changed to be able 306 keep 64-bits counters. Thus all tools, that work with networking 307 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 308 30920130629: 310 Fix targets that run multiple make's to use && rather than ; 311 so that subsequent steps depend on success of previous. 312 313 NOTE: if building 'universe' with -j* on stable/8 or stable/9 314 it would be better to start the build using bmake, to avoid 315 overloading the machine. 316 31720130618: 318 Fix a bug that allowed a tracing process (e.g. gdb) to write 319 to a memory-mapped file in the traced process's address space 320 even if neither the traced process nor the tracing process had 321 write access to that file. 322 32320130615: 324 CVS has been removed from the base system. An exact copy 325 of the code is available from the devel/cvs port. 326 32720130613: 328 Some people report the following error after the switch to bmake: 329 330 make: illegal option -- J 331 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 332 ... 333 *** [buildworld] Error code 2 334 335 this likely due to an old instance of make in 336 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 337 which src/Makefile will use that blindly, if it exists, so if 338 you see the above error: 339 340 rm -rf `make -V MAKEPATH` 341 342 should resolve it. 343 34420130516: 345 Use bmake by default. 346 Whereas before one could choose to build with bmake via 347 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 348 make. The goal is to remove these knobs for 10-RELEASE. 349 350 It is worth noting that bmake (like gmake) treats the command 351 line as the unit of failure, rather than statements within the 352 command line. Thus '(cd some/where && dosomething)' is safer 353 than 'cd some/where; dosomething'. The '()' allows consistent 354 behavior in parallel build. 355 35620130429: 357 Fix a bug that allows NFS clients to issue READDIR on files. 358 35920130426: 360 The WITHOUT_IDEA option has been removed because 361 the IDEA patent expired. 362 36320130426: 364 The sysctl which controls TRIM support under ZFS has been renamed 365 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 366 enabled by default. 367 36820130425: 369 The mergemaster command now uses the default MAKEOBJDIRPREFIX 370 rather than creating it's own in the temporary directory in 371 order allow access to bootstrapped versions of tools such as 372 install and mtree. When upgrading from version of FreeBSD where 373 the install command does not support -l, you will need to 374 install a new mergemaster command if mergemaster -p is required. 375 This can be accomplished with the command (cd src/usr.sbin/mergemaster 376 && make install). 377 37820130404: 379 Legacy ATA stack, disabled and replaced by new CAM-based one since 380 FreeBSD 9.0, completely removed from the sources. Kernel modules 381 atadisk and atapi*, user-level tools atacontrol and burncd are 382 removed. Kernel option `options ATA_CAM` is now permanently enabled 383 and removed. 384 38520130319: 386 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 387 and socketpair(2). Software, in particular Kerberos, may 388 automatically detect and use these during building. The resulting 389 binaries will not work on older kernels. 390 39120130308: 392 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 393 information, see the respective 20130304 entry). 394 39520130304: 396 Recent commits to callout(9) changed the size of struct callout, 397 so the KBI is probably heavily disturbed. Also, some functions 398 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 399 by macros. Every kernel module using it won't load, so rebuild 400 is requested. 401 402 The ctl device has been re-enabled in GENERIC for i386 and amd64, 403 but does not initialize by default (because of the new CTL_DISABLE 404 option) to save memory. To re-enable it, remove the CTL_DISABLE 405 option from the kernel config file or set kern.cam.ctl.disable=0 406 in /boot/loader.conf. 407 40820130301: 409 The ctl device has been disabled in GENERIC for i386 and amd64. 410 This was done due to the extra memory being allocated at system 411 initialisation time by the ctl driver which was only used if 412 a CAM target device was created. This makes a FreeBSD system 413 unusable on 128MB or less of RAM. 414 41520130208: 416 A new compression method (lz4) has been merged to -HEAD. Please 417 refer to zpool-features(7) for more information. 418 419 Please refer to the "ZFS notes" section of this file for information 420 on upgrading boot ZFS pools. 421 42220130129: 423 A BSD-licensed patch(1) variant has been added and is installed 424 as bsdpatch, being the GNU version the default patch. 425 To inverse the logic and use the BSD-licensed one as default, 426 while having the GNU version installed as gnupatch, rebuild 427 and install world with the WITH_BSD_PATCH knob set. 428 42920130121: 430 Due to the use of the new -l option to install(1) during build 431 and install, you must take care not to directly set the INSTALL 432 make variable in your /etc/make.conf, /etc/src.conf, or on the 433 command line. If you wish to use the -C flag for all installs 434 you may be able to add INSTALL+=-C to /etc/make.conf or 435 /etc/src.conf. 436 43720130118: 438 The install(1) option -M has changed meaning and now takes an 439 argument that is a file or path to append logs to. In the 440 unlikely event that -M was the last option on the command line 441 and the command line contained at least two files and a target 442 directory the first file will have logs appended to it. The -M 443 option served little practical purpose in the last decade so its 444 use is expected to be extremely rare. 445 44620121223: 447 After switching to Clang as the default compiler some users of ZFS 448 on i386 systems started to experience stack overflow kernel panics. 449 Please consider using 'options KSTACK_PAGES=4' in such configurations. 450 45120121222: 452 GEOM_LABEL now mangles label names read from file system metadata. 453 Mangling affect labels containing spaces, non-printable characters, 454 '%' or '"'. Device names in /etc/fstab and other places may need to 455 be updated. 456 45720121217: 458 By default, only the 10 most recent kernel dumps will be saved. To 459 restore the previous behaviour (no limit on the number of kernel dumps 460 stored in the dump directory) add the following line to /etc/rc.conf: 461 462 savecore_flags="" 463 46420121201: 465 With the addition of auditdistd(8), a new auditdistd user is now 466 required during installworld. "mergemaster -p" can be used to 467 add the user prior to installworld, as documented in the handbook. 468 46920121117: 470 The sin6_scope_id member variable in struct sockaddr_in6 is now 471 filled by the kernel before passing the structure to the userland via 472 sysctl or routing socket. This means the KAME-specific embedded scope 473 id in sin6_addr.s6_addr[2] is always cleared in userland application. 474 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 475 __FreeBSD_version is bumped to 1000025. 476 47720121105: 478 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 479 This means that the world and kernel will be compiled with clang 480 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 481 and /usr/bin/cpp. To disable this behavior and revert to building 482 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 483 of current may need to bootstrap WITHOUT_CLANG first if the clang 484 build fails (its compatibility window doesn't extend to the 9 stable 485 branch point). 486 48720121102: 488 The IPFIREWALL_FORWARD kernel option has been removed. Its 489 functionality now turned on by default. 490 49120121023: 492 The ZERO_COPY_SOCKET kernel option has been removed and 493 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 494 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 495 mechanism which is not safe and may result in kernel crashes. 496 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 497 driver supports disposeable external page sized mbuf storage. 498 Proper replacements for both zero-copy mechanisms are under 499 consideration and will eventually lead to complete removal 500 of the two kernel options. 501 50220121023: 503 The IPv4 network stack has been converted to network byte 504 order. The following modules need to be recompiled together 505 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 506 pf(4), ipfw(4), ng_ipfw(4), stf(4). 507 50820121022: 509 Support for non-MPSAFE filesystems was removed from VFS. The 510 VFS_VERSION was bumped, all filesystem modules shall be 511 recompiled. 512 51320121018: 514 All the non-MPSAFE filesystems have been disconnected from 515 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 516 portalfs, smbfs, xfs. 517 51820121016: 519 The interface cloning API and ABI has changed. The following 520 modules need to be recompiled together with kernel: 521 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 522 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 523 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 524 52520121015: 526 The sdhci driver was split in two parts: sdhci (generic SD Host 527 Controller logic) and sdhci_pci (actual hardware driver). 528 No kernel config modifications are required, but if you 529 load sdhc as a module you must switch to sdhci_pci instead. 530 53120121014: 532 Import the FUSE kernel and userland support into base system. 533 53420121013: 535 The GNU sort(1) program has been removed since the BSD-licensed 536 sort(1) has been the default for quite some time and no serious 537 problems have been reported. The corresponding WITH_GNU_SORT 538 knob has also gone. 539 54020121006: 541 The pfil(9) API/ABI for AF_INET family has been changed. Packet 542 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 543 with new kernel. 544 54520121001: 546 The net80211(4) ABI has been changed to allow for improved driver 547 PS-POLL and power-save support. All wireless drivers need to be 548 recompiled to work with the new kernel. 549 55020120913: 551 The random(4) support for the VIA hardware random number 552 generator (`PADLOCK') is no longer enabled unconditionally. 553 Add the padlock_rng device in the custom kernel config if 554 needed. The GENERIC kernels on i386 and amd64 do include the 555 device, so the change only affects the custom kernel 556 configurations. 557 55820120908: 559 The pf(4) packet filter ABI has been changed. pfctl(8) and 560 snmp_pf module need to be recompiled to work with new kernel. 561 56220120828: 563 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 564 to -HEAD. Pools that have empty_bpobj in active state can not be 565 imported read-write with ZFS implementations that do not support 566 this feature. For more information read the zpool-features(5) 567 manual page. 568 56920120727: 570 The sparc64 ZFS loader has been changed to no longer try to auto- 571 detect ZFS providers based on diskN aliases but now requires these 572 to be explicitly listed in the OFW boot-device environment variable. 573 57420120712: 575 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 576 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 577 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 578 57920120712: 580 The following sysctls and tunables have been renamed for consistency 581 with other variables: 582 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 583 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 584 58520120628: 586 The sort utility has been replaced with BSD sort. For now, GNU sort 587 is also available as "gnusort" or the default can be set back to 588 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 589 installed as "bsdsort". 590 59120120611: 592 A new version of ZFS (pool version 5000) has been merged to -HEAD. 593 Starting with this version the old system of ZFS pool versioning 594 is superseded by "feature flags". This concept enables forward 595 compatibility against certain future changes in functionality of ZFS 596 pools. The first read-only compatible "feature flag" for ZFS pools 597 is named "com.delphix:async_destroy". For more information 598 read the new zpool-features(5) manual page. 599 Please refer to the "ZFS notes" section of this file for information 600 on upgrading boot ZFS pools. 601 60220120417: 603 The malloc(3) implementation embedded in libc now uses sources imported 604 as contrib/jemalloc. The most disruptive API change is to 605 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 606 delete it prior to installworld, and optionally re-create it using the 607 new format after rebooting. See malloc.conf(5) for details 608 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 609 NAMESPACE section). 610 61120120328: 612 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 613 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 614 now spelled mips. This is to aid compatibility with third-party 615 software that expects this naming scheme in uname(3). Little-endian 616 settings are unchanged. If you are updating a big-endian mips64 machine 617 from before this change, you may need to set MACHINE_ARCH=mips64 in 618 your environment before the new build system will recognize your machine. 619 62020120306: 621 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 622 platforms. 623 62420120229: 625 Now unix domain sockets behave "as expected" on nullfs(5). Previously 626 nullfs(5) did not pass through all behaviours to the underlying layer, 627 as a result if we bound to a socket on the lower layer we could connect 628 only to the lower path; if we bound to the upper layer we could connect 629 only to the upper path. The new behavior is one can connect to both the 630 lower and the upper paths regardless what layer path one binds to. 631 63220120211: 633 The getifaddrs upgrade path broken with 20111215 has been restored. 634 If you have upgraded in between 20111215 and 20120209 you need to 635 recompile libc again with your kernel. You still need to recompile 636 world to be able to configure CARP but this restriction already 637 comes from 20111215. 638 63920120114: 640 The set_rcvar() function has been removed from /etc/rc.subr. All 641 base and ports rc.d scripts have been updated, so if you have a 642 port installed with a script in /usr/local/etc/rc.d you can either 643 hand-edit the rcvar= line, or reinstall the port. 644 645 An easy way to handle the mass-update of /etc/rc.d: 646 rm /etc/rc.d/* && mergemaster -i 647 64820120109: 649 panic(9) now stops other CPUs in the SMP systems, disables interrupts 650 on the current CPU and prevents other threads from running. 651 This behavior can be reverted using the kern.stop_scheduler_on_panic 652 tunable/sysctl. 653 The new behavior can be incompatible with kern.sync_on_panic. 654 65520111215: 656 The carp(4) facility has been changed significantly. Configuration 657 of the CARP protocol via ifconfig(8) has changed, as well as format 658 of CARP events submitted to devd(8) has changed. See manual pages 659 for more information. The arpbalance feature of carp(4) is currently 660 not supported anymore. 661 662 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 663 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 664 need to be recompiled. 665 66620111122: 667 The acpi_wmi(4) status device /dev/wmistat has been renamed to 668 /dev/wmistat0. 669 67020111108: 671 The option VFS_ALLOW_NONMPSAFE option has been added in order to 672 explicitely support non-MPSAFE filesystems. 673 It is on by default for all supported platform at this present 674 time. 675 67620111101: 677 The broken amd(4) driver has been replaced with esp(4) in the amd64, 678 i386 and pc98 GENERIC kernel configuration files. 679 68020110930: 681 sysinstall has been removed 682 68320110923: 684 The stable/9 branch created in subversion. This corresponds to the 685 RELENG_9 branch in CVS. 686 68720110913: 688 This commit modifies vfs_register() so that it uses a hash 689 calculation to set vfc_typenum, which is enabled by default. 690 The first time a system is booted after this change, the 691 vfc_typenum values will change for all file systems. The 692 main effect of this is a change to the NFS server file handles 693 for file systems that use vfc_typenum in their fsid, such as ZFS. 694 It will, however, prevent vfc_typenum from changing when file 695 systems are loaded in a different order for subsequent reboots. 696 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 697 until you are ready to remount all NFS clients after a reboot. 698 69920110828: 700 Bump the shared library version numbers for libraries that 701 do not use symbol versioning, have changed the ABI compared 702 to stable/8 and which shared library version was not bumped. 703 Done as part of 9.0-RELEASE cycle. 704 70520110815: 706 During the merge of Capsicum features, the fget(9) KPI was modified. 707 This may require the rebuilding of out-of-tree device drivers -- 708 issues have been reported specifically with the nVidia device driver. 709 __FreeBSD_version is bumped to 900041. 710 711 Also, there is a period between 20110811 and 20110814 where the 712 special devices /dev/{stdin,stdout,stderr} did not work correctly. 713 Building world from a kernel during that window may not work. 714 71520110628: 716 The packet filter (pf) code has been updated to OpenBSD 4.5. 717 You need to update userland tools to be in sync with kernel. 718 This update breaks backward compatibility with earlier pfsync(4) 719 versions. Care must be taken when updating redundant firewall setups. 720 72120110608: 722 The following sysctls and tunables are retired on x86 platforms: 723 machdep.hlt_cpus 724 machdep.hlt_logical_cpus 725 The following sysctl is retired: 726 machdep.hyperthreading_allowed 727 The sysctls were supposed to provide a way to dynamically offline and 728 online selected CPUs on x86 platforms, but the implementation has not 729 been reliable especially with SCHED_ULE scheduler. 730 machdep.hyperthreading_allowed tunable is still available to ignore 731 hyperthreading CPUs at OS level. 732 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 733 where X is an APIC ID of a CPU. Be advised, though, that disabling 734 CPUs in non-uniform fashion will result in non-uniform topology and 735 may lead to sub-optimal system performance with SCHED_ULE, which is 736 a default scheduler. 737 73820110607: 739 cpumask_t type is retired and cpuset_t is used in order to describe 740 a mask of CPUs. 741 74220110531: 743 Changes to ifconfig(8) for dynamic address family detection mandate 744 that you are running a kernel of 20110525 or later. Make sure to 745 follow the update procedure to boot a new kernel before installing 746 world. 747 74820110513: 749 Support for sun4v architecture is officially dropped 750 75120110503: 752 Several KPI breaking changes have been committed to the mii(4) layer, 753 the PHY drivers and consequently some Ethernet drivers using mii(4). 754 This means that miibus.ko and the modules of the affected Ethernet 755 drivers need to be recompiled. 756 757 Note to kernel developers: Given that the OUI bit reversion problem 758 was fixed as part of these changes all mii(4) commits related to OUIs, 759 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 760 handling, no longer can be merged verbatim to stable/8 and previous 761 branches. 762 76320110430: 764 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 765 into their kernel configurations along with 'device pci'. 766 76720110427: 768 The default NFS client is now the new NFS client, so fstype "newnfs" 769 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 770 Although mounts via fstype "nfs" will usually work without userland 771 changes, it is recommended that the mount(8) and mount_nfs(8) 772 commands be rebuilt from sources and that a link to mount_nfs called 773 mount_oldnfs be created. The new client is compiled into the 774 kernel with "options NFSCL" and this is needed for diskless root 775 file systems. The GENERIC kernel configs have been changed to use 776 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 777 To use the regular/old client, you can "mount -t oldnfs ...". For 778 a diskless root file system, you must also include a line like: 779 780 vfs.root.mountfrom="oldnfs:" 781 782 in the boot/loader.conf on the root fs on the NFS server to make 783 a diskless root fs use the old client. 784 78520110424: 786 The GENERIC kernels for all architectures now default to the new 787 CAM-based ATA stack. It means that all legacy ATA drivers were 788 removed and replaced by respective CAM drivers. If you are using 789 ATA device names in /etc/fstab or other places, make sure to update 790 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 791 where 'Y's are the sequential numbers starting from zero for each type 792 in order of detection, unless configured otherwise with tunables, 793 see cam(4)). There will be symbolic links created in /dev/ to map 794 old adX devices to the respective adaY. They should provide basic 795 compatibility for file systems mounting in most cases, but they do 796 not support old user-level APIs and do not have respective providers 797 in GEOM. Consider using updated management tools with new device names. 798 799 It is possible to load devices ahci, ata, siis and mvs as modules, 800 but option ATA_CAM should remain in kernel configuration to make ata 801 module work as CAM driver supporting legacy ATA controllers. Device ata 802 still can be used in modular fashion (atacore + ...). Modules atadisk 803 and atapi* are not used and won't affect operation in ATA_CAM mode. 804 Note that to use CAM-based ATA kernel should include CAM devices 805 scbus, pass, da (or explicitly ada), cd and optionally others. All of 806 them are parts of the cam module. 807 808 ataraid(4) functionality is now supported by the RAID GEOM class. 809 To use it you can load geom_raid kernel module and use graid(8) tool 810 for management. Instead of /dev/arX device names, use /dev/raid/rX. 811 812 No kernel config options or code have been removed, so if a problem 813 arises, please report it and optionally revert to the old ATA stack. 814 In order to do it you can remove from the kernel config: 815 options ATA_CAM 816 device ahci 817 device mvs 818 device siis 819 , and instead add back: 820 device atadisk # ATA disk drives 821 device ataraid # ATA RAID drives 822 device atapicd # ATAPI CDROM drives 823 device atapifd # ATAPI floppy drives 824 device atapist # ATAPI tape drives 825 82620110423: 827 The default NFS server has been changed to the new server, which 828 was referred to as the experimental server. If you need to switch 829 back to the old NFS server, you must now put the "-o" option on 830 both the mountd and nfsd commands. This can be done using the 831 mountd_flags and nfs_server_flags rc.conf variables until an 832 update to the rc scripts is committed, which is coming soon. 833 83420110418: 835 The GNU Objective-C runtime library (libobjc), and other Objective-C 836 related components have been removed from the base system. If you 837 require an Objective-C library, please use one of the available ports. 838 83920110331: 840 ath(4) has been split into bus- and device- modules. if_ath contains 841 the HAL, the TX rate control and the network device code. if_ath_pci 842 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 843 contains the AHB glue. Users need to load both if_ath_pci and if_ath 844 in order to use ath on everything else. 845 846 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 847 need to load if_ath and if_ath_pci for ath(4) operation. 848 84920110314: 850 As part of the replacement of sysinstall, the process of building 851 release media has changed significantly. For details, please re-read 852 release(7), which has been updated to reflect the new build process. 853 85420110218: 855 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 856 is the last available version under GPLv2. It brings a number of new 857 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 858 4.1 and SSE 4.2), better support for powerpc64, a number of new 859 directives, and lots of other small improvements. See the ChangeLog 860 file in contrib/binutils for the full details. 861 86220110218: 863 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 864 compliant, and will now use half of hash for authentication. 865 This will break interoperability with all stacks (including all 866 actual FreeBSD versions) who implement 867 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 868 authentication). 869 The only workaround with such peers is to use another HMAC 870 algorithm for IPsec ("phase 2") authentication. 871 87220110207: 873 Remove the uio_yield prototype and symbol. This function has 874 been misnamed since it was introduced and should not be 875 globally exposed with this name. The equivalent functionality 876 is now available using kern_yield(curthread->td_user_pri). 877 The function remains undocumented. 878 87920110112: 880 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 881 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 882 for scalar sysctls is defined but disabled. Code that needs 883 UQUAD to pass the type checking that must compile on older 884 systems where the define is not present can check against 885 __FreeBSD_version >= 900030. 886 887 The system dialog(1) has been replaced with a new version previously 888 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 889 with the previous version, but the libdialog associated with it has 890 a largely incompatible API. As such, the original version of libdialog 891 will be kept temporarily as libodialog, until its base system consumers 892 are replaced or updated. Bump __FreeBSD_version to 900030. 893 89420110103: 895 If you are trying to run make universe on a -stable system, and you get 896 the following warning: 897 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 898 unknown. config(8) likely too old." 899 or something similar to it, then you must upgrade your -stable system 900 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 901 stable/8) or build the config from the latest stable/8 branch and 902 install it on your system. 903 904 Prior to this date, building a current universe on 8-stable system from 905 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 906 error in the first kernel build phase. A new config on those old 907 systems will fix that problem for older versions of -current. 908 90920101228: 910 The TCP stack has been modified to allow Khelp modules to interact with 911 it via helper hook points and store per-connection data in the TCP 912 control block. Bump __FreeBSD_version to 900029. User space tools that 913 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 914 be recompiled. 915 91620101114: 917 Generic IEEE 802.3 annex 31B full duplex flow control support has been 918 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 919 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 920 to take advantage of it instead of using custom implementations. This 921 means that these drivers now no longer unconditionally advertise 922 support for flow control but only do so if flow control is a selected 923 media option. This was implemented in the generic support that way in 924 order to allow flow control to be switched on and off via ifconfig(8) 925 with the PHY specific default to typically off in order to protect 926 from unwanted effects. Consequently, if you used flow control with 927 one of the above mentioned drivers you now need to explicitly enable 928 it, for example via: 929 ifconfig bge0 media auto mediaopt flowcontrol 930 931 Along with the above mentioned changes generic support for setting 932 1000baseT master mode also has been added and brgphy(4), ciphy(4), 933 e1000phy(4) as well as ip1000phy(4) have been converted to take 934 advantage of it. This means that these drivers now no longer take the 935 link0 parameter for selecting master mode but the master media option 936 has to be used instead, for example like in the following: 937 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 938 939 Selection of master mode now is also available with all other PHY 940 drivers supporting 1000baseT. 941 94220101111: 943 The TCP stack has received a significant update to add support for 944 modularised congestion control and generally improve the clarity of 945 congestion control decisions. Bump __FreeBSD_version to 900025. User 946 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 947 sockstat) need to be recompiled. 948 94920101002: 950 The man(1) utility has been replaced by a new version that no longer 951 uses /etc/manpath.config. Please consult man.conf(5) for how to 952 migrate local entries to the new format. 953 95420100928: 955 The copyright strings printed by login(1) and sshd(8) at the time of a 956 new connection have been removed to follow other operating systems and 957 upstream sshd. 958 95920100915: 960 A workaround for a fixed ld bug has been removed in kernel code, 961 so make sure that your system ld is built from sources after 962 revision 210245 from 2010-07-19 (r211583 if building head kernel 963 on stable/8, r211584 for stable/7; both from 2010-08-21). 964 A symptom of incorrect ld version is different addresses for 965 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 966 96720100913: 968 The $ipv6_prefer variable in rc.conf(5) has been split into 969 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 970 971 The $ip6addrctl_policy is a variable to choose a pre-defined 972 address selection policy set by ip6addrctl(8). A value 973 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 974 default is "AUTO". 975 976 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 977 flag (see an entry of 20090926) is set on an interface with no 978 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 979 security reason. If you want IPv6 link-local address on all 980 interfaces by default, set this to "YES". 981 982 The old ipv6_prefer="YES" is equivalent to 983 ipv6_activate_all_interfaces="YES" and 984 ip6addrctl_policy="ipv6_prefer". 985 98620100913: 987 DTrace has grown support for userland tracing. Due to this, DTrace is 988 now i386 and amd64 only. 989 dtruss(1) is now installed by default on those systems and a new 990 kernel module is needed for userland tracing: fasttrap. 991 No changes to your kernel config file are necessary to enable 992 userland tracing, but you might consider adding 'STRIP=' and 993 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 994 to have informative userland stack traces in DTrace (ustack). 995 99620100725: 997 The acpi_aiboost(4) driver has been removed in favor of the new 998 aibs(4) driver. You should update your kernel configuration file. 999 100020100722: 1001 BSD grep has been imported to the base system and it is built by 1002 default. It is completely BSD licensed, highly GNU-compatible, uses 1003 less memory than its GNU counterpart and has a small codebase. 1004 However, it is slower than its GNU counterpart, which is mostly 1005 noticeable for larger searches, for smaller ones it is measurable 1006 but not significant. The reason is complex, the most important factor 1007 is that we lack a modern and efficient regex library and GNU 1008 overcomes this by optimizing the searches internally. Future work 1009 on improving the regex performance is planned, for the meantime, 1010 users that need better performance, can build GNU grep instead by 1011 setting the WITH_GNU_GREP knob. 1012 101320100713: 1014 Due to the import of powerpc64 support, all existing powerpc kernel 1015 configuration files must be updated with a machine directive like this: 1016 machine powerpc powerpc 1017 1018 In addition, an updated config(8) is required to build powerpc kernels 1019 after this change. 1020 102120100713: 1022 A new version of ZFS (version 15) has been merged to -HEAD. 1023 This version uses a python library for the following subcommands: 1024 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1025 For full functionality of these commands the following port must 1026 be installed: sysutils/py-zfs 1027 102820100429: 1029 'vm_page's are now hashed by physical address to an array of mutexes. 1030 Currently this is only used to serialize access to hold_count. Over 1031 time the page queue mutex will be peeled away. This changes the size 1032 of pmap on every architecture. And requires all callers of vm_page_hold 1033 and vm_page_unhold to be updated. 1034 103520100402: 1036 WITH_CTF can now be specified in src.conf (not recommended, there 1037 are some problems with static executables), make.conf (would also 1038 affect ports which do not use GNU make and do not override the 1039 compile targets) or in the kernel config (via "makeoptions 1040 WITH_CTF=yes"). 1041 When WITH_CTF was specified there before this was silently ignored, 1042 so make sure that WITH_CTF is not used in places which could lead 1043 to unwanted behavior. 1044 104520100311: 1046 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1047 to allow 32-bit compatibility on non-x86 platforms. All kernel 1048 configurations on amd64 and ia64 platforms using these options must 1049 be modified accordingly. 1050 105120100113: 1052 The utmp user accounting database has been replaced with utmpx, 1053 the user accounting interface standardized by POSIX. 1054 Unfortunately the semantics of utmp and utmpx don't match, 1055 making it practically impossible to support both interfaces. 1056 The user accounting database is used by tools like finger(1), 1057 last(1), talk(1), w(1) and ac(8). 1058 1059 All applications in the base system use utmpx. This means only 1060 local binaries (e.g. from the ports tree) may still use these 1061 utmp database files. These applications must be rebuilt to make 1062 use of utmpx. 1063 1064 After the system has been upgraded, it is safe to remove the old 1065 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1066 assuming their contents is of no importance anymore. Old wtmp 1067 databases can only be used by last(1) and ac(8) after they have 1068 been converted to the new format using wtmpcvt(1). 1069 107020100108: 1071 Introduce the kernel thread "deadlock resolver" (which can be enabled 1072 via the DEADLKRES option, see NOTES for more details) and the 1073 sleepq_type() function for sleepqueues. 1074 107520091202: 1076 The rc.firewall and rc.firewall6 were unified, and 1077 rc.firewall6 and rc.d/ip6fw were removed. 1078 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1079 variables are obsoleted. Instead, the following new rc 1080 variables are added to rc.d/ipfw: 1081 1082 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1083 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1084 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1085 1086 The meanings correspond to the relevant IPv4 variables. 1087 108820091125: 1089 8.0-RELEASE. 1090 109120091113: 1092 The default terminal emulation for syscons(4) has been changed 1093 from cons25 to xterm on all platforms except pc98. This means 1094 that the /etc/ttys file needs to be updated to ensure correct 1095 operation of applications on the console. 1096 1097 The terminal emulation style can be toggled per window by using 1098 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1099 options can be used to change the compile-time default back to 1100 cons25. 1101 1102 To prevent graphical artifacts, make sure the TERM environment 1103 variable is set to match the terminal emulation that is being 1104 performed by syscons(4). 1105 110620091109: 1107 The layout of the structure ieee80211req_scan_result has changed. 1108 Applications that require wireless scan results (e.g. ifconfig(8)) 1109 from net80211 need to be recompiled. 1110 1111 Applications such as wpa_supplicant(8) may require a full world 1112 build without using NO_CLEAN in order to get synchronized with the 1113 new structure. 1114 111520091025: 1116 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1117 There's one kernel module for each firmware. Adding "device iwnfw" 1118 to the kernel configuration file means including all three firmware 1119 images inside the kernel. If you want to include just the one for 1120 your wireless card, use the devices iwn4965fw, iwn5000fw or 1121 iwn5150fw. 1122 112320090926: 1124 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1125 into rc.d/netif. The changes are the following: 1126 1127 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1128 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1129 Note that both variables need the "inet6" keyword at the head. 1130 1131 Do not set $ipv6_network_interfaces manually if you do not 1132 understand what you are doing. It is not needed in most cases. 1133 1134 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1135 they are obsolete. 1136 1137 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1138 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1139 1140 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1141 all configured interfaces have "inet6 accept_rtadv" in the 1142 $ifconfig_IF_ipv6. These are for backward compatibility. 1143 1144 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1145 functionality of interfaces with no corresponding 1146 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1147 and the default address selection policy of ip6addrctl(8) 1148 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1149 Note that if you want to configure IPv6 functionality on the 1150 disabled interfaces after boot, first you need to clear the flag by 1151 using ifconfig(8) like: 1152 1153 ifconfig em0 inet6 -ifdisabled 1154 1155 If YES, the default address selection policy is set as 1156 IPv6-preferred. 1157 1158 The default value of $ipv6_prefer is NO. 1159 1160 4. If your system need to receive Router Advertisement messages, 1161 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1162 scripts automatically invoke rtsol(8) when the interface becomes 1163 UP. The Router Advertisement messages are used for SLAAC 1164 (State-Less Address AutoConfiguration). 1165 116620090922: 1167 802.11s D3.03 support was committed. This is incompatible with the 1168 previous code, which was based on D3.0. 1169 117020090912: 1171 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1172 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1173 control whether accepting Router Advertisement messages or not. 1174 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1175 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1176 The ifconfig(8) utility now supports these flags. 1177 117820090910: 1179 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1180 mount(8) and -a option for df(1) to see them. 1181 118220090825: 1183 The old tunable hw.bus.devctl_disable has been superseded by 1184 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1185 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1186 is 1000. 1187 118820090813: 1189 Remove the option STOP_NMI. The default action is now to use NMI only 1190 for KDB via the newly introduced function stop_cpus_hard() and 1191 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1192 119320090803: 1194 The stable/8 branch created in subversion. This corresponds to the 1195 RELENG_8 branch in CVS. 1196 119720090719: 1198 Bump the shared library version numbers for all libraries that do not 1199 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1200 __FreeBSD_version to 800105. 1201 120220090714: 1203 Due to changes in the implementation of virtual network stack support, 1204 all network-related kernel modules must be recompiled. As this change 1205 breaks the ABI, bump __FreeBSD_version to 800104. 1206 120720090713: 1208 The TOE interface to the TCP syncache has been modified to remove 1209 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1210 The cxgb driver is the only TOE consumer affected by this change, and 1211 needs to be recompiled along with the kernel. As this change breaks 1212 the ABI, bump __FreeBSD_version to 800103. 1213 121420090712: 1215 Padding has been added to struct tcpcb, sackhint and tcpstat in 1216 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1217 maintaining the ABI. However, this change breaks the ABI, so bump 1218 __FreeBSD_version to 800102. User space tools that rely on the size of 1219 any of these structs (e.g. sockstat) need to be recompiled. 1220 122120090630: 1222 The NFS_LEGACYRPC option has been removed along with the old kernel 1223 RPC implementation that this option selected. Kernel configurations 1224 may need to be adjusted. 1225 122620090629: 1227 The network interface device nodes at /dev/net/<interface> have been 1228 removed. All ioctl operations can be performed the normal way using 1229 routing sockets. The kqueue functionality can generally be replaced 1230 with routing sockets. 1231 123220090628: 1233 The documentation from the FreeBSD Documentation Project (Handbook, 1234 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1235 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1236 123720090624: 1238 The ABI of various structures related to the SYSV IPC API have been 1239 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1240 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1241 800100. 1242 124320090622: 1244 Layout of struct vnet has changed as routing related variables were 1245 moved to their own Vimage module. Modules need to be recompiled. Bump 1246 __FreeBSD_version to 800099. 1247 124820090619: 1249 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1250 respectively. As long as no more than 16 groups per process are used, 1251 no changes should be visible. When more than 16 groups are used, old 1252 binaries may fail if they call getgroups() or getgrouplist() with 1253 statically sized storage. Recompiling will work around this, but 1254 applications should be modified to use dynamically allocated storage 1255 for group arrays as POSIX.1-2008 does not cap an implementation's 1256 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1257 1258 NFS and portalfs mounts may also be affected as the list of groups is 1259 truncated to 16. Users of NFS who use more than 16 groups, should 1260 take care that negative group permissions are not used on the exported 1261 file systems as they will not be reliable unless a GSSAPI based 1262 authentication method is used. 1263 126420090616: 1265 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1266 option compiles in the support for adaptive spinning for lockmgrs 1267 which want to enable it. The lockinit() function now accepts the flag 1268 LK_ADAPTIVE in order to make the lock object subject to adaptive 1269 spinning when both held in write and read mode. 1270 127120090613: 1272 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1273 changed. User applications that use this ioctl need to be rebuilt. 1274 127520090611: 1276 The layout of struct thread has changed. Kernel and modules need to 1277 be rebuilt. 1278 127920090608: 1280 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1281 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1282 128320090602: 1284 window(1) has been removed from the base system. It can now be 1285 installed from ports. The port is called misc/window. 1286 128720090601: 1288 The way we are storing and accessing `routing table' entries has 1289 changed. Programs reading the FIB, like netstat, need to be 1290 re-compiled. 1291 129220090601: 1293 A new netisr implementation has been added for FreeBSD 8. Network 1294 file system modules, such as igmp, ipdivert, and others, should be 1295 rebuilt. 1296 Bump __FreeBSD_version to 800096. 1297 129820090530: 1299 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1300 more valid. 1301 130220090530: 1303 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1304 Bump __FreeBSD_version to 800094. 1305 130620090529: 1307 Add mnt_xflag field to 'struct mount'. File system modules need to be 1308 rebuilt. 1309 Bump __FreeBSD_version to 800093. 1310 131120090528: 1312 The compiling option ADAPTIVE_SX has been retired while it has been 1313 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1314 The KPI for sx_init_flags() changes as accepting flags: 1315 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1316 been introduced in order to handle the reversed logic. 1317 Bump __FreeBSD_version to 800092. 1318 131920090527: 1320 Add support for hierarchical jails. Remove global securelevel. 1321 Bump __FreeBSD_version to 800091. 1322 132320090523: 1324 The layout of struct vnet_net has changed, therefore modules 1325 need to be rebuilt. 1326 Bump __FreeBSD_version to 800090. 1327 132820090523: 1329 The newly imported zic(8) produces a new format in the output. Please 1330 run tzsetup(8) to install the newly created data to /etc/localtime. 1331 133220090520: 1333 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1334 hw.usb.* and is now consistent again with previous releases. 1335 133620090520: 1337 802.11 monitor mode support was revised and driver api's were changed. 1338 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1339 of DLT_IEEE802_11. No user-visible data structures were changed but 1340 applications that use DLT_IEEE802_11 may require changes. 1341 Bump __FreeBSD_version to 800088. 1342 134320090430: 1344 The layout of the following structs has changed: sysctl_oid, 1345 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1346 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1347 panics may be experienced. World rebuild is required for 1348 correctly checking networking state from userland. 1349 Bump __FreeBSD_version to 800085. 1350 135120090429: 1352 MLDv2 and Source-Specific Multicast (SSM) have been merged 1353 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1354 The implementation of SSM within FreeBSD's IPv6 stack closely 1355 follows the IPv4 implementation. 1356 1357 For kernel developers: 1358 1359 * The most important changes are that the ip6_output() and 1360 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1361 and this lock has been downgraded to a non-recursive mutex. 1362 1363 * As with the changes to the IPv4 stack to support SSM, filtering 1364 of inbound multicast traffic must now be performed by transport 1365 protocols within the IPv6 stack. This does not apply to TCP and 1366 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1367 1368 * The KPIs used by IPv6 multicast are similar to those used by 1369 the IPv4 stack, with the following differences: 1370 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1371 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1372 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1373 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1374 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1375 for MLDv1 have an additional 'timer' argument which is used to 1376 jitter the initial membership report for the solicited-node 1377 multicast membership on-link. 1378 * This is not strictly needed for MLDv2, which already jitters 1379 its report transmissions. However, the 'timer' argument is 1380 preserved in case MLDv1 is active on the interface. 1381 1382 * The KAME linked-list based IPv6 membership implementation has 1383 been refactored to use a vector similar to that used by the IPv4 1384 stack. 1385 Code which maintains a list of its own multicast memberships 1386 internally, e.g. carp, has been updated to reflect the new 1387 semantics. 1388 1389 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1390 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1391 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1392 implementation constraint which needs to be addressed in HEAD. 1393 1394 For application developers: 1395 1396 * The changes are broadly similar to those made for the IPv4 1397 stack. 1398 1399 * The use of IPv4 and IPv6 multicast socket options on the same 1400 socket, using mapped addresses, HAS NOT been tested or supported. 1401 1402 * There are a number of issues with the implementation of various 1403 IPv6 multicast APIs which need to be resolved in the API surface 1404 before the implementation is fully compatible with KAME userland 1405 use, and these are mostly to do with interface index treatment. 1406 1407 * The literature available discusses the use of either the delta / ASM 1408 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1409 using setsourcefilter(3)/getsourcefilter(3). For more information 1410 please refer to RFC 3768, 'Socket Interface Extensions for 1411 Multicast Source Filters'. 1412 1413 * Applications which use the published RFC 3678 APIs should be fine. 1414 1415 For systems administrators: 1416 1417 * The mtest(8) utility has been refactored to support IPv6, in 1418 addition to IPv4. Interface addresses are no longer accepted 1419 as arguments, their names must be used instead. The utility 1420 will map the interface name to its first IPv4 address as 1421 returned by getifaddrs(3). 1422 1423 * The ifmcstat(8) utility has also been updated to print the MLDv2 1424 endpoint state and source filter lists via sysctl(3). 1425 1426 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1427 loopback of IPv6 multicast datagrams by default; it defaults to 1 1428 to preserve the existing behaviour. Disabling multicast loopback is 1429 recommended for optimal system performance. 1430 1431 * The IPv6 MROUTING code has been changed to examine this sysctl 1432 instead of attempting to perform a group lookup before looping 1433 back forwarded datagrams. 1434 1435 Bump __FreeBSD_version to 800084. 1436 143720090422: 1438 Implement low-level Bluetooth HCI API. 1439 Bump __FreeBSD_version to 800083. 1440 144120090419: 1442 The layout of struct malloc_type, used by modules to register new 1443 memory allocation types, has changed. Most modules will need to 1444 be rebuilt or panics may be experienced. 1445 Bump __FreeBSD_version to 800081. 1446 144720090415: 1448 Anticipate overflowing inp_flags - add inp_flags2. 1449 This changes most offsets in inpcb, so checking v4 connection 1450 state will require a world rebuild. 1451 Bump __FreeBSD_version to 800080. 1452 145320090415: 1454 Add an llentry to struct route and struct route_in6. Modules 1455 embedding a struct route will need to be recompiled. 1456 Bump __FreeBSD_version to 800079. 1457 145820090414: 1459 The size of rt_metrics_lite and by extension rtentry has changed. 1460 Networking administration apps will need to be recompiled. 1461 The route command now supports show as an alias for get, weighting 1462 of routes, sticky and nostick flags to alter the behavior of stateful 1463 load balancing. 1464 Bump __FreeBSD_version to 800078. 1465 146620090408: 1467 Do not use Giant for kbdmux(4) locking. This is wrong and 1468 apparently causing more problems than it solves. This will 1469 re-open the issue where interrupt handlers may race with 1470 kbdmux(4) in polling mode. Typical symptoms include (but 1471 not limited to) duplicated and/or missing characters when 1472 low level console functions (such as gets) are used while 1473 interrupts are enabled (for example geli password prompt, 1474 mountroot prompt etc.). Disabling kbdmux(4) may help. 1475 147620090407: 1477 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1478 kernel modules referencing any of the above need to be recompiled. 1479 Bump __FreeBSD_version to 800075. 1480 148120090320: 1482 GEOM_PART has become the default partition slicer for storage devices, 1483 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1484 introduces some changes: 1485 1486 MSDOS/EBR: the devices created from MSDOS extended partition entries 1487 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1488 to devices with offset-based names. fstabs may need to be modified. 1489 1490 BSD: the "geometry does not match label" warning is harmless in most 1491 cases but it points to problems in file system misalignment with 1492 disk geometry. The "c" partition is now implicit, covers the whole 1493 top-level drive and cannot be (mis)used by users. 1494 1495 General: Kernel dumps are now not allowed to be written to devices 1496 whose partition types indicate they are meant to be used for file 1497 systems (or, in case of MSDOS partitions, as something else than 1498 the "386BSD" type). 1499 1500 Most of these changes date approximately from 200812. 1501 150220090319: 1503 The uscanner(4) driver has been removed from the kernel. This follows 1504 Linux removing theirs in 2.6 and making libusb the default interface 1505 (supported by sane). 1506 150720090319: 1508 The multicast forwarding code has been cleaned up. netstat(1) 1509 only relies on KVM now for printing bandwidth upcall meters. 1510 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1511 ip6_mroute_mod respectively. The config(5) options for statically 1512 compiling this code remain the same, i.e. 'options MROUTING'. 1513 151420090315: 1515 Support for the IFF_NEEDSGIANT network interface flag has been 1516 removed, which means that non-MPSAFE network device drivers are no 1517 longer supported. In particular, if_ar, if_sr, and network device 1518 drivers from the old (legacy) USB stack can no longer be built or 1519 used. 1520 152120090313: 1522 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1523 a bunch of new language catalog files have also been added. 1524 This means that some common libc messages are now localized and 1525 they depend on the LC_MESSAGES environmental variable. 1526 152720090313: 1528 The k8temp(4) driver has been renamed to amdtemp(4) since 1529 support for Family 10 and Family 11 CPU families was added. 1530 153120090309: 1532 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1533 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1534 1535 For kernel developers, the most important changes are that the 1536 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1537 and this lock has been downgraded to a non-recursive mutex. 1538 1539 Transport protocols (UDP, Raw IP) are now responsible for filtering 1540 inbound multicast traffic according to group membership and source 1541 filters. The imo_multicast_filter() KPI exists for this purpose. 1542 Transports which do not use multicast (SCTP, TCP) already reject 1543 multicast by default. Forwarding and receive performance may improve 1544 as a mutex acquisition is no longer needed in the ip_input() 1545 low-level input path. in_addmulti() and in_delmulti() are shimmed 1546 to new KPIs which exist to support SSM in-kernel. 1547 1548 For application developers, it is recommended that loopback of 1549 multicast datagrams be disabled for best performance, as this 1550 will still cause the lock to be taken for each looped-back 1551 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1552 be tuned to 0 to disable loopback by default; it defaults to 1 1553 to preserve the existing behaviour. 1554 1555 For systems administrators, to obtain best performance with 1556 multicast reception and multiple groups, it is always recommended 1557 that a card with a suitably precise hash filter is used. Hash 1558 collisions will still result in the lock being taken within the 1559 transport protocol input path to check group membership. 1560 1561 If deploying FreeBSD in an environment with IGMP snooping switches, 1562 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1563 enabled; this forces 224.0.0.0/24 group membership to be announced 1564 via IGMP. 1565 1566 The size of 'struct igmpstat' has changed; netstat needs to be 1567 recompiled to reflect this. 1568 Bump __FreeBSD_version to 800070. 1569 157020090309: 1571 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1572 updated to use it. This requires a buildworld/installworld in order to 1573 update the library and dependencies (usbconfig, etc). Its advisable to 1574 rebuild all ports which uses libusb. More specific directions are given 1575 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1576 libusb are no longer required and can be removed. 1577 157820090302: 1579 A workaround is committed to allow the creation of System V shared 1580 memory segment of size > 2 GB on the 64-bit architectures. 1581 Due to a limitation of the existing ABI, the shm_segsz member 1582 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1583 wrong for large segments. Note that limits must be explicitly 1584 raised to allow such segments to be created. 1585 158620090301: 1587 The layout of struct ifnet has changed, requiring a rebuild of all 1588 network device driver modules. 1589 159020090227: 1591 The /dev handling for the new USB stack has changed, a 1592 buildworld/installworld is required for libusb20. 1593 159420090223: 1595 The new USB2 stack has now been permanently moved in and all kernel and 1596 module names reverted to their previous values (eg, usb, ehci, ohci, 1597 ums, ...). The old usb stack can be compiled in by prefixing the name 1598 with the letter 'o', the old usb modules have been removed. 1599 Updating entry 20090216 for xorg and 20090215 for libmap may still 1600 apply. 1601 160220090217: 1603 The rc.conf(5) option if_up_delay has been renamed to 1604 defaultroute_delay to better reflect its purpose. If you have 1605 customized this setting in /etc/rc.conf you need to update it to 1606 use the new name. 1607 160820090216: 1609 xorg 7.4 wants to configure its input devices via hald which does not 1610 yet work with USB2. If the keyboard/mouse does not work in xorg then 1611 add 1612 Option "AllowEmptyInput" "off" 1613 to your ServerLayout section. This will cause X to use the configured 1614 kbd and mouse sections from your xorg.conf. 1615 161620090215: 1617 The GENERIC kernels for all architectures now default to the new USB2 1618 stack. No kernel config options or code have been removed so if a 1619 problem arises please report it and optionally revert to the old USB 1620 stack. If you are loading USB kernel modules or have a custom kernel 1621 that includes GENERIC then ensure that usb names are also changed over, 1622 eg uftdi -> usb2_serial_ftdi. 1623 1624 Older programs linked against the ports libusb 0.1 need to be 1625 redirected to the new stack's libusb20. /etc/libmap.conf can 1626 be used for this: 1627 # Map old usb library to new one for usb2 stack 1628 libusb-0.1.so.8 libusb20.so.1 1629 163020090209: 1631 All USB ethernet devices now attach as interfaces under the name ueN 1632 (eg. ue0). This is to provide a predictable name as vendors often 1633 change usb chipsets in a product without notice. 1634 163520090203: 1636 The ichsmb(4) driver has been changed to require SMBus slave 1637 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1638 All of the other SMBus controller drivers require left-justified 1639 slave addresses, so this change makes all the drivers provide the 1640 same interface. 1641 164220090201: 1643 INET6 statistics (struct ip6stat) was updated. 1644 netstat(1) needs to be recompiled. 1645 164620090119: 1647 NTFS has been removed from GENERIC kernel on amd64 to match 1648 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1649 will load ntfs.ko module automatically when NTFS support is 1650 actually needed, unless ntfs.ko is not installed or security 1651 level prohibits loading kernel modules. If either is the case, 1652 "options NTFS" has to be added into kernel config. 1653 165420090115: 1655 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1656 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1657 800061. User space tools that rely on the size of struct tcpcb in 1658 tcp_var.h (e.g. sockstat) need to be recompiled. 1659 166020081225: 1661 ng_tty(4) module updated to match the new TTY subsystem. 1662 Due to API change, user-level applications must be updated. 1663 New API support added to mpd5 CVS and expected to be present 1664 in next mpd5.3 release. 1665 166620081219: 1667 With __FreeBSD_version 800060 the makefs tool is part of 1668 the base system (it was a port). 1669 167020081216: 1671 The afdata and ifnet locks have been changed from mutexes to 1672 rwlocks, network modules will need to be re-compiled. 1673 167420081214: 1675 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1676 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1677 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1678 architecture and 40 bytes on 64-bit architecture. The userland 1679 applications "arp" and "ndp" have been updated accordingly. 1680 The output from "netstat -r" shows only routing entries and 1681 none of the L2 information. 1682 168320081130: 1684 __FreeBSD_version 800057 marks the switchover from the 1685 binary ath hal to source code. Users must add the line: 1686 1687 options AH_SUPPORT_AR5416 1688 1689 to their kernel config files when specifying: 1690 1691 device ath_hal 1692 1693 The ath_hal module no longer exists; the code is now compiled 1694 together with the driver in the ath module. It is now 1695 possible to tailor chip support (i.e. reduce the set of chips 1696 and thereby the code size); consult ath_hal(4) for details. 1697 169820081121: 1699 __FreeBSD_version 800054 adds memory barriers to 1700 <machine/atomic.h>, new interfaces to ifnet to facilitate 1701 multiple hardware transmit queues for cards that support 1702 them, and a lock-less ring-buffer implementation to 1703 enable drivers to more efficiently manage queueing of 1704 packets. 1705 170620081117: 1707 A new version of ZFS (version 13) has been merged to -HEAD. 1708 This version has zpool attribute "listsnapshots" off by 1709 default, which means "zfs list" does not show snapshots, 1710 and is the same as Solaris behavior. 1711 171220081028: 1713 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1714 171520081009: 1716 The uhci, ohci, ehci and slhci USB Host controller drivers have 1717 been put into separate modules. If you load the usb module 1718 separately through loader.conf you will need to load the 1719 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1720 controller add the following to loader.conf: 1721 1722 uhci_load="YES" 1723 ehci_load="YES" 1724 172520081009: 1726 The ABI used by the PMC toolset has changed. Please keep 1727 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1728 sync. 1729 173020081009: 1731 atapci kernel module now includes only generic PCI ATA 1732 driver. AHCI driver moved to ataahci kernel module. 1733 All vendor-specific code moved into separate kernel modules: 1734 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1735 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1736 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1737 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1738 173920080820: 1740 The TTY subsystem of the kernel has been replaced by a new 1741 implementation, which provides better scalability and an 1742 improved driver model. Most common drivers have been migrated to 1743 the new TTY subsystem, while others have not. The following 1744 drivers have not yet been ported to the new TTY layer: 1745 1746 PCI/ISA: 1747 cy, digi, rc, rp, sio 1748 1749 USB: 1750 ubser, ucycom 1751 1752 Line disciplines: 1753 ng_h4, ng_tty, ppp, sl, snp 1754 1755 Adding these drivers to your kernel configuration file shall 1756 cause compilation to fail. 1757 175820080818: 1759 ntpd has been upgraded to 4.2.4p5. 1760 176120080801: 1762 OpenSSH has been upgraded to 5.1p1. 1763 1764 For many years, FreeBSD's version of OpenSSH preferred DSA 1765 over RSA for host and user authentication keys. With this 1766 upgrade, we've switched to the vendor's default of RSA over 1767 DSA. This may cause upgraded clients to warn about unknown 1768 host keys even for previously known hosts. Users should 1769 follow the usual procedure for verifying host keys before 1770 accepting the RSA key. 1771 1772 This can be circumvented by setting the "HostKeyAlgorithms" 1773 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1774 command line. 1775 1776 Please note that the sequence of keys offered for 1777 authentication has been changed as well. You may want to 1778 specify IdentityFile in a different order to revert this 1779 behavior. 1780 178120080713: 1782 The sio(4) driver has been removed from the i386 and amd64 1783 kernel configuration files. This means uart(4) is now the 1784 default serial port driver on those platforms as well. 1785 1786 To prevent collisions with the sio(4) driver, the uart(4) driver 1787 uses different names for its device nodes. This means the 1788 onboard serial port will now most likely be called "ttyu0" 1789 instead of "ttyd0". You may need to reconfigure applications to 1790 use the new device names. 1791 1792 When using the serial port as a boot console, be sure to update 1793 /boot/device.hints and /etc/ttys before booting the new kernel. 1794 If you forget to do so, you can still manually specify the hints 1795 at the loader prompt: 1796 1797 set hint.uart.0.at="isa" 1798 set hint.uart.0.port="0x3F8" 1799 set hint.uart.0.flags="0x10" 1800 set hint.uart.0.irq="4" 1801 boot -s 1802 180320080609: 1804 The gpt(8) utility has been removed. Use gpart(8) to partition 1805 disks instead. 1806 180720080603: 1808 The version that Linuxulator emulates was changed from 2.4.2 1809 to 2.6.16. If you experience any problems with Linux binaries 1810 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1811 if it fixes the problem contact emulation mailing list. 1812 181320080525: 1814 ISDN4BSD (I4B) was removed from the src tree. You may need to 1815 update a your kernel configuration and remove relevant entries. 1816 181720080509: 1818 I have checked in code to support multiple routing tables. 1819 See the man pages setfib(1) and setfib(2). 1820 This is a hopefully backwards compatible version, 1821 but to make use of it you need to compile your kernel 1822 with options ROUTETABLES=2 (or more up to 16). 1823 182420080420: 1825 The 802.11 wireless support was redone to enable multi-bss 1826 operation on devices that are capable. The underlying device 1827 is no longer used directly but instead wlanX devices are 1828 cloned with ifconfig. This requires changes to rc.conf files. 1829 For example, change: 1830 ifconfig_ath0="WPA DHCP" 1831 to 1832 wlans_ath0=wlan0 1833 ifconfig_wlan0="WPA DHCP" 1834 see rc.conf(5) for more details. In addition, mergemaster of 1835 /etc/rc.d is highly recommended. Simultaneous update of userland 1836 and kernel wouldn't hurt either. 1837 1838 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1839 modules were merged into the base wlan module. All references 1840 to these modules (e.g. in kernel config files) must be removed. 1841 184220080408: 1843 psm(4) has gained write(2) support in native operation level. 1844 Arbitrary commands can be written to /dev/psm%d and status can 1845 be read back from it. Therefore, an application is responsible 1846 for status validation and error recovery. It is a no-op in 1847 other operation levels. 1848 184920080312: 1850 Support for KSE threading has been removed from the kernel. To 1851 run legacy applications linked against KSE libmap.conf may 1852 be used. The following libmap.conf may be used to ensure 1853 compatibility with any prior release: 1854 1855 libpthread.so.1 libthr.so.1 1856 libpthread.so.2 libthr.so.2 1857 libkse.so.3 libthr.so.3 1858 185920080301: 1860 The layout of struct vmspace has changed. This affects libkvm 1861 and any executables that link against libkvm and use the 1862 kvm_getprocs() function. In particular, but not exclusively, 1863 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1864 The effects are minimal, but it's advisable to upgrade world 1865 nonetheless. 1866 186720080229: 1868 The latest em driver no longer has support in it for the 1869 82575 adapter, this is now moved to the igb driver. The 1870 split was done to make new features that are incompatible 1871 with older hardware easier to do. 1872 187320080220: 1874 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1875 likewise the kernel option is now GEOM_LINUX_LVM. 1876 187720080211: 1878 The default NFS mount mode has changed from UDP to TCP for 1879 increased reliability. If you rely on (insecurely) NFS 1880 mounting across a firewall you may need to update your 1881 firewall rules. 1882 188320080208: 1884 Belatedly note the addition of m_collapse for compacting 1885 mbuf chains. 1886 188720080126: 1888 The fts(3) structures have been changed to use adequate 1889 integer types for their members and so to be able to cope 1890 with huge file trees. The old fts(3) ABI is preserved 1891 through symbol versioning in libc, so third-party binaries 1892 using fts(3) should still work, although they will not take 1893 advantage of the extended types. At the same time, some 1894 third-party software might fail to build after this change 1895 due to unportable assumptions made in its source code about 1896 fts(3) structure members. Such software should be fixed 1897 by its vendor or, in the worst case, in the ports tree. 1898 FreeBSD_version 800015 marks this change for the unlikely 1899 case that a portable fix is impossible. 1900 190120080123: 1902 To upgrade to -current after this date, you must be running 1903 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1904 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1905 190620071128: 1907 The ADAPTIVE_GIANT kernel option has been retired because its 1908 functionality is the default now. 1909 191020071118: 1911 The AT keyboard emulation of sunkbd(4) has been turned on 1912 by default. In order to make the special symbols of the Sun 1913 keyboards driven by sunkbd(4) work under X these now have 1914 to be configured the same way as Sun USB keyboards driven 1915 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1916 1917 Option "XkbLayout" "us" 1918 Option "XkbRules" "xorg" 1919 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1920 192120071024: 1922 It has been decided that it is desirable to provide ABI 1923 backwards compatibility to the FreeBSD 4/5/6 versions of the 1924 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1925 broken with the introduction of PCI domain support (see the 1926 20070930 entry). Unfortunately, this required the ABI of 1927 PCIOCGETCONF to be broken again in order to be able to 1928 provide backwards compatibility to the old version of that 1929 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1930 again. As for prominent ports this affects neither pciutils 1931 nor xorg-server this time, the hal port needs to be rebuilt 1932 however. 1933 193420071020: 1935 The misnamed kthread_create() and friends have been renamed 1936 to kproc_create() etc. Many of the callers already 1937 used kproc_start().. 1938 I will return kthread_create() and friends in a while 1939 with implementations that actually create threads, not procs. 1940 Renaming corresponds with version 800002. 1941 194220071010: 1943 RELENG_7 branched. 1944 1945COMMON ITEMS: 1946 1947 General Notes 1948 ------------- 1949 Avoid using make -j when upgrading. While generally safe, there are 1950 sometimes problems using -j to upgrade. If your upgrade fails with 1951 -j, please try again without -j. From time to time in the past there 1952 have been problems using -j with buildworld and/or installworld. This 1953 is especially true when upgrading between "distant" versions (eg one 1954 that cross a major release boundary or several minor releases, or when 1955 several months have passed on the -current branch). 1956 1957 Sometimes, obscure build problems are the result of environment 1958 poisoning. This can happen because the make utility reads its 1959 environment when searching for values for global variables. To run 1960 your build attempts in an "environmental clean room", prefix all make 1961 commands with 'env -i '. See the env(1) manual page for more details. 1962 1963 When upgrading from one major version to another it is generally best 1964 to upgrade to the latest code in the currently installed branch first, 1965 then do an upgrade to the new branch. This is the best-tested upgrade 1966 path, and has the highest probability of being successful. Please try 1967 this approach before reporting problems with a major version upgrade. 1968 1969 When upgrading a live system, having a root shell around before 1970 installing anything can help undo problems. Not having a root shell 1971 around can lead to problems if pam has changed too much from your 1972 starting point to allow continued authentication after the upgrade. 1973 1974 ZFS notes 1975 --------- 1976 When upgrading the boot ZFS pool to a new version, always follow 1977 these two steps: 1978 1979 1.) recompile and reinstall the ZFS boot loader and boot block 1980 (this is part of "make buildworld" and "make installworld") 1981 1982 2.) update the ZFS boot block on your boot drive 1983 1984 The following example updates the ZFS boot block on the first 1985 partition (freebsd-boot) of a GPT partitioned drive ad0: 1986 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1987 1988 Non-boot pools do not need these updates. 1989 1990 To build a kernel 1991 ----------------- 1992 If you are updating from a prior version of FreeBSD (even one just 1993 a few days old), you should follow this procedure. It is the most 1994 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1995 1996 make kernel-toolchain 1997 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1998 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1999 2000 To test a kernel once 2001 --------------------- 2002 If you just want to boot a kernel once (because you are not sure 2003 if it works, or if you want to boot a known bad kernel to provide 2004 debugging information) run 2005 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2006 nextboot -k testkernel 2007 2008 To just build a kernel when you know that it won't mess you up 2009 -------------------------------------------------------------- 2010 This assumes you are already running a CURRENT system. Replace 2011 ${arch} with the architecture of your machine (e.g. "i386", 2012 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2013 2014 cd src/sys/${arch}/conf 2015 config KERNEL_NAME_HERE 2016 cd ../compile/KERNEL_NAME_HERE 2017 make depend 2018 make 2019 make install 2020 2021 If this fails, go to the "To build a kernel" section. 2022 2023 To rebuild everything and install it on the current system. 2024 ----------------------------------------------------------- 2025 # Note: sometimes if you are running current you gotta do more than 2026 # is listed here if you are upgrading from a really old current. 2027 2028 <make sure you have good level 0 dumps> 2029 make buildworld 2030 make kernel KERNCONF=YOUR_KERNEL_HERE 2031 [1] 2032 <reboot in single user> [3] 2033 mergemaster -p [5] 2034 make installworld 2035 mergemaster -i [4] 2036 make delete-old [6] 2037 <reboot> 2038 2039 To cross-install current onto a separate partition 2040 -------------------------------------------------- 2041 # In this approach we use a separate partition to hold 2042 # current's root, 'usr', and 'var' directories. A partition 2043 # holding "/", "/usr" and "/var" should be about 2GB in 2044 # size. 2045 2046 <make sure you have good level 0 dumps> 2047 <boot into -stable> 2048 make buildworld 2049 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2050 <maybe newfs current's root partition> 2051 <mount current's root partition on directory ${CURRENT_ROOT}> 2052 make installworld DESTDIR=${CURRENT_ROOT} 2053 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2054 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2055 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2056 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2057 <reboot into current> 2058 <do a "native" rebuild/install as described in the previous section> 2059 <maybe install compatibility libraries from ports/misc/compat*> 2060 <reboot> 2061 2062 2063 To upgrade in-place from stable to current 2064 ---------------------------------------------- 2065 <make sure you have good level 0 dumps> 2066 make buildworld [9] 2067 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2068 [1] 2069 <reboot in single user> [3] 2070 mergemaster -p [5] 2071 make installworld 2072 mergemaster -i [4] 2073 make delete-old [6] 2074 <reboot> 2075 2076 Make sure that you've read the UPDATING file to understand the 2077 tweaks to various things you need. At this point in the life 2078 cycle of current, things change often and you are on your own 2079 to cope. The defaults can also change, so please read ALL of 2080 the UPDATING entries. 2081 2082 Also, if you are tracking -current, you must be subscribed to 2083 freebsd-current@freebsd.org. Make sure that before you update 2084 your sources that you have read and understood all the recent 2085 messages there. If in doubt, please track -stable which has 2086 much fewer pitfalls. 2087 2088 [1] If you have third party modules, such as vmware, you 2089 should disable them at this point so they don't crash your 2090 system on reboot. 2091 2092 [3] From the bootblocks, boot -s, and then do 2093 fsck -p 2094 mount -u / 2095 mount -a 2096 cd src 2097 adjkerntz -i # if CMOS is wall time 2098 Also, when doing a major release upgrade, it is required that 2099 you boot into single user mode to do the installworld. 2100 2101 [4] Note: This step is non-optional. Failure to do this step 2102 can result in a significant reduction in the functionality of the 2103 system. Attempting to do it by hand is not recommended and those 2104 that pursue this avenue should read this file carefully, as well 2105 as the archives of freebsd-current and freebsd-hackers mailing lists 2106 for potential gotchas. The -U option is also useful to consider. 2107 See mergemaster(8) for more information. 2108 2109 [5] Usually this step is a noop. However, from time to time 2110 you may need to do this if you get unknown user in the following 2111 step. It never hurts to do it all the time. You may need to 2112 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2113 install) after the buildworld before this step if you last updated 2114 from current before 20130425 or from -stable before 20130430. 2115 2116 [6] This only deletes old files and directories. Old libraries 2117 can be deleted by "make delete-old-libs", but you have to make 2118 sure that no program is using those libraries anymore. 2119 2120 [8] In order to have a kernel that can run the 4.x binaries needed to 2121 do an installworld, you must include the COMPAT_FREEBSD4 option in 2122 your kernel. Failure to do so may leave you with a system that is 2123 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2124 required to run the 5.x binaries on more recent kernels. And so on 2125 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2126 2127 Make sure that you merge any new devices from GENERIC since the 2128 last time you updated your kernel config file. 2129 2130 [9] When checking out sources, you must include the -P flag to have 2131 cvs prune empty directories. 2132 2133 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2134 "?=" instead of the "=" assignment operator, so that buildworld can 2135 override the CPUTYPE if it needs to. 2136 2137 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2138 not on the command line, or in /etc/make.conf. buildworld will 2139 warn if it is improperly defined. 2140FORMAT: 2141 2142This file contains a list, in reverse chronological order, of major 2143breakages in tracking -current. It is not guaranteed to be a complete 2144list of such breakages, and only contains entries since October 10, 2007. 2145If you need to see UPDATING entries from before that date, you will need 2146to fetch an UPDATING file from an older FreeBSD release. 2147 2148Copyright information: 2149 2150Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2151 2152Redistribution, publication, translation and use, with or without 2153modification, in full or in part, in any form or format of this 2154document are permitted without further permission from the author. 2155 2156THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2157IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2158WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2159DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2160INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2161(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2162SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2163HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2164STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2165IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2166POSSIBILITY OF SUCH DAMAGE. 2167 2168Contact Warner Losh if you have any questions about your use of 2169this document. 2170 2171$FreeBSD: stable/10/UPDATING 275814 2014-12-15 21:22:42Z sbruno $ 2172