UPDATING revision 276159
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 1920141223: p3 FreeBSD-SA-14:31.ntp 20 FreeBSD-EN-14:13.freebsd-update 21 22 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 23 Fix directory deletion issue in freebsd-update. [EN-14:13] 24 2520141217: p2 FreeBSD-SA-14:30.unbound 26 Fix unbound remote denial of service vulnerability. 27 2820141210: p1 FreeBSD-SA-14:27.stdio 29 FreeBSD-SA-14:28.file 30 31 Fix buffer overflow in stdio. [SA-14:27] 32 33 Fix multiple vulnerabilities in file(1) and libmagic(3). 34 [SA-14:28] 35 3620140904: 37 The ofwfb driver, used to provide a graphics console on PowerPC when 38 using vt(4), no longer allows mmap() of all of physical memory. This 39 will prevent Xorg on PowerPC with some ATI graphics cards from 40 initializing properly unless x11-servers/xorg-server is updated to 41 1.12.4_8 or newer. 42 4320140831: 44 The libatf-c and libatf-c++ major versions were downgraded to 0 and 45 1 respectively to match the upstream numbers. They were out of 46 sync because, when they were originally added to FreeBSD, the 47 upstream versions were not respected. These libraries are private 48 and not yet built by default, so renumbering them should be a 49 non-issue. However, unclean source trees will yield broken test 50 programs once the operator executes "make delete-old-libs" after a 51 "make installworld". 52 53 Additionally, the atf-sh binary was made private by moving it into 54 /usr/libexec/. Already-built shell test programs will keep the 55 path to the old binary so they will break after "make delete-old" 56 is run. 57 58 If you are using WITH_TESTS=yes (not the default), wipe the object 59 tree and rebuild from scratch to prevent spurious test failures. 60 This is only needed once: the misnumbered libraries and misplaced 61 binaries have been added to OptionalObsoleteFiles.inc so they will 62 be removed during a clean upgrade. 63 6420140814: 65 The ixgbe tunables now match their sysctl counterparts, for example: 66 hw.ixgbe.enable_aim => hw.ix.enable_aim 67 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 68 6920140801: 70 The NFSv4.1 server committed by r269398 changes the internal 71 function call interfaces used between the NFS and krpc modules. 72 As such, __FreeBSD_version was bumped. 73 7420140729: 75 The default unbound configuration has been modified to address 76 issues with reverse lookups on networks that use private 77 address ranges. If you use the local_unbound service, run 78 "service local_unbound setup" as root to regenerate your 79 configuration, then "service local_unbound reload" to load the 80 new configuration. 81 8220140717: 83 It is no longer necessary to include the dwarf version in your DEBUG 84 options in your kernel config file. The bug that required it to be 85 placed in the config file has bene fixed. DEBUG should now just 86 contain -g. The build system will automatically update things 87 to do the right thing. 88 8920140715: 90 Several ABI breaking changes were merged to CTL and new iSCSI code. 91 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 92 iscsictl need to be rebuilt to work with a new kernel. 93 9420140708: 95 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 96 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 97 which differs from the behaviour controlled by this knob.) 98 9920140608: 100 On i386 and amd64 systems, the onifconsole flag is now set by default 101 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 102 as a login TTY if it is set in the bootloader as an active kernel 103 console. No changes in behavior should result otherwise. To revert to 104 the previous behavior, set ttyu0 to "off" in /etc/ttys. 105 10620140512: 107 Clang and llvm have been upgraded to 3.4.1 release. 108 10920140321: 110 Clang and llvm have been upgraded to 3.4 release. 111 11220140306: 113 If a Makefile in a tests/ directory was auto-generating a Kyuafile 114 instead of providing an explicit one, this would prevent such 115 Makefile from providing its own Kyuafile in the future during 116 NO_CLEAN builds. This has been fixed in the Makefiles but manual 117 intervention is needed to clean an objdir if you use NO_CLEAN: 118 # find /usr/obj -name Kyuafile | xargs rm -f 119 12020140303: 121 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 122 capability mode support. Please note that enabling the feature in 123 kernel is still highly recommended. 124 12520140227: 126 OpenSSH is now built with sandbox support, and will use sandbox as 127 the default privilege separation method. This requires Capsicum 128 capability mode support in kernel. 129 13020140216: 131 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 132 been deprecated and will not be part of FreeBSD 11.0 and later 133 releases. If you use this driver, please consider switching to 134 the nfe(4) driver instead. 135 13620140120: 137 10.0-RELEASE. 138 13920131216: 140 The behavior of gss_pseudo_random() for the krb5 mechanism 141 has changed, for applications requesting a longer random string 142 than produced by the underlying enctype's pseudo-random() function. 143 In particular, the random string produced from a session key of 144 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 145 be different at the 17th octet and later, after this change. 146 The counter used in the PRF+ construction is now encoded as a 147 big-endian integer in accordance with RFC 4402. 148 __FreeBSD_version is bumped to 1000701. 149 15020131108: 151 The WITHOUT_ATF build knob has been removed and its functionality 152 has been subsumed into the more generic WITHOUT_TESTS. If you were 153 using the former to disable the build of the ATF libraries, you 154 should change your settings to use the latter. 155 15620131031: 157 The default version of mtree is nmtree which is obtained from 158 NetBSD. The output is generally the same, but may vary 159 slightly. If you found you need identical output adding 160 "-F freebsd9" to the command line should do the trick. For the 161 time being, the old mtree is available as fmtree. 162 16320131014: 164 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 165 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 166 1.1.4_8 and verify bsdyml not linked in, before running "make 167 delete-old-libs": 168 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 169 or 170 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 171 17220131010: 173 The rc.d/jail script has been updated to support jail(8) 174 configuration file. The "jail_<jname>_*" rc.conf(5) variables 175 for per-jail configuration are automatically converted to 176 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 177 This is transparently backward compatible. See below about some 178 incompatibilities and rc.conf(5) manual page for more details. 179 180 These variables are now deprecated in favor of jail(8) configuration 181 file. One can use "rc.d/jail config <jname>" command to generate 182 a jail(8) configuration file in /var/run/jail.<jname>.conf without 183 running the jail(8) utility. The default pathname of the 184 configuration file is /etc/jail.conf and can be specified by 185 using $jail_conf or $jail_<jname>_conf variables. 186 187 Please note that jail_devfs_ruleset accepts an integer at 188 this moment. Please consider to rewrite the ruleset name 189 with an integer. 190 19120130930: 192 BIND has been removed from the base system. If all you need 193 is a local resolver, simply enable and start the local_unbound 194 service instead. Otherwise, several versions of BIND are 195 available in the ports tree. The dns/bind99 port is one example. 196 197 With this change, nslookup(1) and dig(1) are no longer in the base 198 system. Users should instead use host(1) and drill(1) which are 199 in the base system. Alternatively, nslookup and dig can 200 be obtained by installing the dns/bind-tools port. 201 20220130916: 203 With the addition of unbound(8), a new unbound user is now 204 required during installworld. "mergemaster -p" can be used to 205 add the user prior to installworld, as documented in the handbook. 206 20720130911: 208 OpenSSH is now built with DNSSEC support, and will by default 209 silently trust signed SSHFP records. This can be controlled with 210 the VerifyHostKeyDNS client configuration setting. DNSSEC support 211 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 212 21320130906: 214 The GNU Compiler Collection and C++ standard library (libstdc++) 215 are no longer built by default on platforms where clang is the system 216 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 217 options in src.conf. 218 21920130905: 220 The PROCDESC kernel option is now part of the GENERIC kernel 221 configuration and is required for the rwhod(8) to work. 222 If you are using custom kernel configuration, you should include 223 'options PROCDESC'. 224 22520130905: 226 The API and ABI related to the Capsicum framework was modified 227 in backward incompatible way. The userland libraries and programs 228 have to be recompiled to work with the new kernel. This includes the 229 following libraries and programs, but the whole buildworld is 230 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 231 kdump, procstat, rwho, rwhod, uniq. 232 23320130903: 234 AES-NI intrinsic support has been added to gcc. The AES-NI module 235 has been updated to use this support. A new gcc is required to build 236 the aesni module on both i386 and amd64. 237 23820130821: 239 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 240 Thus "device padlock_rng" and "device rdrand_rng" should be 241 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 242 24320130813: 244 WITH_ICONV has been split into two feature sets. WITH_ICONV now 245 enables just the iconv* functionality and is now on by default. 246 WITH_LIBICONV_COMPAT enables the libiconv api and link time 247 compatability. Set WITHOUT_ICONV to build the old way. 248 If you have been using WITH_ICONV before, you will very likely 249 need to turn on WITH_LIBICONV_COMPAT. 250 25120130806: 252 INVARIANTS option now enables DEBUG for code with OpenSolaris and 253 Illumos origin, including ZFS. If you have INVARIANTS in your 254 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 255 explicitly. 256 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 257 locks if WITNESS option was set. Because that generated a lot of 258 witness(9) reports and all of them were believed to be false 259 positives, this is no longer done. New option OPENSOLARIS_WITNESS 260 can be used to achieve the previous behavior. 261 26220130806: 263 Timer values in IPv6 data structures now use time_uptime instead 264 of time_second. Although this is not a user-visible functional 265 change, userland utilities which directly use them---ndp(8), 266 rtadvd(8), and rtsold(8) in the base system---need to be updated 267 to r253970 or later. 268 26920130802: 270 find -delete can now delete the pathnames given as arguments, 271 instead of only files found below them or if the pathname did 272 not contain any slashes. Formerly, the following error message 273 would result: 274 275 find: -delete: <path>: relative path potentially not safe 276 277 Deleting the pathnames given as arguments can be prevented 278 without error messages using -mindepth 1 or by changing 279 directory and passing "." as argument to find. This works in the 280 old as well as the new version of find. 281 28220130726: 283 Behavior of devfs rules path matching has been changed. 284 Pattern is now always matched against fully qualified devfs 285 path and slash characters must be explicitly matched by 286 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 287 subdirectories must be reviewed. 288 28920130716: 290 The default ARM ABI has changed to the ARM EABI. The old ABI is 291 incompatible with the ARM EABI and all programs and modules will 292 need to be rebuilt to work with a new kernel. 293 294 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 295 296 NOTE: Support for the old ABI will be removed in the future and 297 users are advised to upgrade. 298 29920130709: 300 pkg_install has been disconnected from the build if you really need it 301 you should add WITH_PKGTOOLS in your src.conf(5). 302 30320130709: 304 Most of network statistics structures were changed to be able 305 keep 64-bits counters. Thus all tools, that work with networking 306 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 307 30820130629: 309 Fix targets that run multiple make's to use && rather than ; 310 so that subsequent steps depend on success of previous. 311 312 NOTE: if building 'universe' with -j* on stable/8 or stable/9 313 it would be better to start the build using bmake, to avoid 314 overloading the machine. 315 31620130618: 317 Fix a bug that allowed a tracing process (e.g. gdb) to write 318 to a memory-mapped file in the traced process's address space 319 even if neither the traced process nor the tracing process had 320 write access to that file. 321 32220130615: 323 CVS has been removed from the base system. An exact copy 324 of the code is available from the devel/cvs port. 325 32620130613: 327 Some people report the following error after the switch to bmake: 328 329 make: illegal option -- J 330 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 331 ... 332 *** [buildworld] Error code 2 333 334 this likely due to an old instance of make in 335 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 336 which src/Makefile will use that blindly, if it exists, so if 337 you see the above error: 338 339 rm -rf `make -V MAKEPATH` 340 341 should resolve it. 342 34320130516: 344 Use bmake by default. 345 Whereas before one could choose to build with bmake via 346 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 347 make. The goal is to remove these knobs for 10-RELEASE. 348 349 It is worth noting that bmake (like gmake) treats the command 350 line as the unit of failure, rather than statements within the 351 command line. Thus '(cd some/where && dosomething)' is safer 352 than 'cd some/where; dosomething'. The '()' allows consistent 353 behavior in parallel build. 354 35520130429: 356 Fix a bug that allows NFS clients to issue READDIR on files. 357 35820130426: 359 The WITHOUT_IDEA option has been removed because 360 the IDEA patent expired. 361 36220130426: 363 The sysctl which controls TRIM support under ZFS has been renamed 364 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 365 enabled by default. 366 36720130425: 368 The mergemaster command now uses the default MAKEOBJDIRPREFIX 369 rather than creating it's own in the temporary directory in 370 order allow access to bootstrapped versions of tools such as 371 install and mtree. When upgrading from version of FreeBSD where 372 the install command does not support -l, you will need to 373 install a new mergemaster command if mergemaster -p is required. 374 This can be accomplished with the command (cd src/usr.sbin/mergemaster 375 && make install). 376 37720130404: 378 Legacy ATA stack, disabled and replaced by new CAM-based one since 379 FreeBSD 9.0, completely removed from the sources. Kernel modules 380 atadisk and atapi*, user-level tools atacontrol and burncd are 381 removed. Kernel option `options ATA_CAM` is now permanently enabled 382 and removed. 383 38420130319: 385 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 386 and socketpair(2). Software, in particular Kerberos, may 387 automatically detect and use these during building. The resulting 388 binaries will not work on older kernels. 389 39020130308: 391 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 392 information, see the respective 20130304 entry). 393 39420130304: 395 Recent commits to callout(9) changed the size of struct callout, 396 so the KBI is probably heavily disturbed. Also, some functions 397 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 398 by macros. Every kernel module using it won't load, so rebuild 399 is requested. 400 401 The ctl device has been re-enabled in GENERIC for i386 and amd64, 402 but does not initialize by default (because of the new CTL_DISABLE 403 option) to save memory. To re-enable it, remove the CTL_DISABLE 404 option from the kernel config file or set kern.cam.ctl.disable=0 405 in /boot/loader.conf. 406 40720130301: 408 The ctl device has been disabled in GENERIC for i386 and amd64. 409 This was done due to the extra memory being allocated at system 410 initialisation time by the ctl driver which was only used if 411 a CAM target device was created. This makes a FreeBSD system 412 unusable on 128MB or less of RAM. 413 41420130208: 415 A new compression method (lz4) has been merged to -HEAD. Please 416 refer to zpool-features(7) for more information. 417 418 Please refer to the "ZFS notes" section of this file for information 419 on upgrading boot ZFS pools. 420 42120130129: 422 A BSD-licensed patch(1) variant has been added and is installed 423 as bsdpatch, being the GNU version the default patch. 424 To inverse the logic and use the BSD-licensed one as default, 425 while having the GNU version installed as gnupatch, rebuild 426 and install world with the WITH_BSD_PATCH knob set. 427 42820130121: 429 Due to the use of the new -l option to install(1) during build 430 and install, you must take care not to directly set the INSTALL 431 make variable in your /etc/make.conf, /etc/src.conf, or on the 432 command line. If you wish to use the -C flag for all installs 433 you may be able to add INSTALL+=-C to /etc/make.conf or 434 /etc/src.conf. 435 43620130118: 437 The install(1) option -M has changed meaning and now takes an 438 argument that is a file or path to append logs to. In the 439 unlikely event that -M was the last option on the command line 440 and the command line contained at least two files and a target 441 directory the first file will have logs appended to it. The -M 442 option served little practical purpose in the last decade so its 443 use is expected to be extremely rare. 444 44520121223: 446 After switching to Clang as the default compiler some users of ZFS 447 on i386 systems started to experience stack overflow kernel panics. 448 Please consider using 'options KSTACK_PAGES=4' in such configurations. 449 45020121222: 451 GEOM_LABEL now mangles label names read from file system metadata. 452 Mangling affect labels containing spaces, non-printable characters, 453 '%' or '"'. Device names in /etc/fstab and other places may need to 454 be updated. 455 45620121217: 457 By default, only the 10 most recent kernel dumps will be saved. To 458 restore the previous behaviour (no limit on the number of kernel dumps 459 stored in the dump directory) add the following line to /etc/rc.conf: 460 461 savecore_flags="" 462 46320121201: 464 With the addition of auditdistd(8), a new auditdistd user is now 465 required during installworld. "mergemaster -p" can be used to 466 add the user prior to installworld, as documented in the handbook. 467 46820121117: 469 The sin6_scope_id member variable in struct sockaddr_in6 is now 470 filled by the kernel before passing the structure to the userland via 471 sysctl or routing socket. This means the KAME-specific embedded scope 472 id in sin6_addr.s6_addr[2] is always cleared in userland application. 473 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 474 __FreeBSD_version is bumped to 1000025. 475 47620121105: 477 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 478 This means that the world and kernel will be compiled with clang 479 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 480 and /usr/bin/cpp. To disable this behavior and revert to building 481 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 482 of current may need to bootstrap WITHOUT_CLANG first if the clang 483 build fails (its compatibility window doesn't extend to the 9 stable 484 branch point). 485 48620121102: 487 The IPFIREWALL_FORWARD kernel option has been removed. Its 488 functionality now turned on by default. 489 49020121023: 491 The ZERO_COPY_SOCKET kernel option has been removed and 492 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 493 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 494 mechanism which is not safe and may result in kernel crashes. 495 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 496 driver supports disposeable external page sized mbuf storage. 497 Proper replacements for both zero-copy mechanisms are under 498 consideration and will eventually lead to complete removal 499 of the two kernel options. 500 50120121023: 502 The IPv4 network stack has been converted to network byte 503 order. The following modules need to be recompiled together 504 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 505 pf(4), ipfw(4), ng_ipfw(4), stf(4). 506 50720121022: 508 Support for non-MPSAFE filesystems was removed from VFS. The 509 VFS_VERSION was bumped, all filesystem modules shall be 510 recompiled. 511 51220121018: 513 All the non-MPSAFE filesystems have been disconnected from 514 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 515 portalfs, smbfs, xfs. 516 51720121016: 518 The interface cloning API and ABI has changed. The following 519 modules need to be recompiled together with kernel: 520 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 521 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 522 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 523 52420121015: 525 The sdhci driver was split in two parts: sdhci (generic SD Host 526 Controller logic) and sdhci_pci (actual hardware driver). 527 No kernel config modifications are required, but if you 528 load sdhc as a module you must switch to sdhci_pci instead. 529 53020121014: 531 Import the FUSE kernel and userland support into base system. 532 53320121013: 534 The GNU sort(1) program has been removed since the BSD-licensed 535 sort(1) has been the default for quite some time and no serious 536 problems have been reported. The corresponding WITH_GNU_SORT 537 knob has also gone. 538 53920121006: 540 The pfil(9) API/ABI for AF_INET family has been changed. Packet 541 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 542 with new kernel. 543 54420121001: 545 The net80211(4) ABI has been changed to allow for improved driver 546 PS-POLL and power-save support. All wireless drivers need to be 547 recompiled to work with the new kernel. 548 54920120913: 550 The random(4) support for the VIA hardware random number 551 generator (`PADLOCK') is no longer enabled unconditionally. 552 Add the padlock_rng device in the custom kernel config if 553 needed. The GENERIC kernels on i386 and amd64 do include the 554 device, so the change only affects the custom kernel 555 configurations. 556 55720120908: 558 The pf(4) packet filter ABI has been changed. pfctl(8) and 559 snmp_pf module need to be recompiled to work with new kernel. 560 56120120828: 562 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 563 to -HEAD. Pools that have empty_bpobj in active state can not be 564 imported read-write with ZFS implementations that do not support 565 this feature. For more information read the zpool-features(5) 566 manual page. 567 56820120727: 569 The sparc64 ZFS loader has been changed to no longer try to auto- 570 detect ZFS providers based on diskN aliases but now requires these 571 to be explicitly listed in the OFW boot-device environment variable. 572 57320120712: 574 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 575 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 576 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 577 57820120712: 579 The following sysctls and tunables have been renamed for consistency 580 with other variables: 581 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 582 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 583 58420120628: 585 The sort utility has been replaced with BSD sort. For now, GNU sort 586 is also available as "gnusort" or the default can be set back to 587 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 588 installed as "bsdsort". 589 59020120611: 591 A new version of ZFS (pool version 5000) has been merged to -HEAD. 592 Starting with this version the old system of ZFS pool versioning 593 is superseded by "feature flags". This concept enables forward 594 compatibility against certain future changes in functionality of ZFS 595 pools. The first read-only compatible "feature flag" for ZFS pools 596 is named "com.delphix:async_destroy". For more information 597 read the new zpool-features(5) manual page. 598 Please refer to the "ZFS notes" section of this file for information 599 on upgrading boot ZFS pools. 600 60120120417: 602 The malloc(3) implementation embedded in libc now uses sources imported 603 as contrib/jemalloc. The most disruptive API change is to 604 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 605 delete it prior to installworld, and optionally re-create it using the 606 new format after rebooting. See malloc.conf(5) for details 607 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 608 NAMESPACE section). 609 61020120328: 611 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 612 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 613 now spelled mips. This is to aid compatibility with third-party 614 software that expects this naming scheme in uname(3). Little-endian 615 settings are unchanged. If you are updating a big-endian mips64 machine 616 from before this change, you may need to set MACHINE_ARCH=mips64 in 617 your environment before the new build system will recognize your machine. 618 61920120306: 620 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 621 platforms. 622 62320120229: 624 Now unix domain sockets behave "as expected" on nullfs(5). Previously 625 nullfs(5) did not pass through all behaviours to the underlying layer, 626 as a result if we bound to a socket on the lower layer we could connect 627 only to the lower path; if we bound to the upper layer we could connect 628 only to the upper path. The new behavior is one can connect to both the 629 lower and the upper paths regardless what layer path one binds to. 630 63120120211: 632 The getifaddrs upgrade path broken with 20111215 has been restored. 633 If you have upgraded in between 20111215 and 20120209 you need to 634 recompile libc again with your kernel. You still need to recompile 635 world to be able to configure CARP but this restriction already 636 comes from 20111215. 637 63820120114: 639 The set_rcvar() function has been removed from /etc/rc.subr. All 640 base and ports rc.d scripts have been updated, so if you have a 641 port installed with a script in /usr/local/etc/rc.d you can either 642 hand-edit the rcvar= line, or reinstall the port. 643 644 An easy way to handle the mass-update of /etc/rc.d: 645 rm /etc/rc.d/* && mergemaster -i 646 64720120109: 648 panic(9) now stops other CPUs in the SMP systems, disables interrupts 649 on the current CPU and prevents other threads from running. 650 This behavior can be reverted using the kern.stop_scheduler_on_panic 651 tunable/sysctl. 652 The new behavior can be incompatible with kern.sync_on_panic. 653 65420111215: 655 The carp(4) facility has been changed significantly. Configuration 656 of the CARP protocol via ifconfig(8) has changed, as well as format 657 of CARP events submitted to devd(8) has changed. See manual pages 658 for more information. The arpbalance feature of carp(4) is currently 659 not supported anymore. 660 661 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 662 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 663 need to be recompiled. 664 66520111122: 666 The acpi_wmi(4) status device /dev/wmistat has been renamed to 667 /dev/wmistat0. 668 66920111108: 670 The option VFS_ALLOW_NONMPSAFE option has been added in order to 671 explicitely support non-MPSAFE filesystems. 672 It is on by default for all supported platform at this present 673 time. 674 67520111101: 676 The broken amd(4) driver has been replaced with esp(4) in the amd64, 677 i386 and pc98 GENERIC kernel configuration files. 678 67920110930: 680 sysinstall has been removed 681 68220110923: 683 The stable/9 branch created in subversion. This corresponds to the 684 RELENG_9 branch in CVS. 685 68620110913: 687 This commit modifies vfs_register() so that it uses a hash 688 calculation to set vfc_typenum, which is enabled by default. 689 The first time a system is booted after this change, the 690 vfc_typenum values will change for all file systems. The 691 main effect of this is a change to the NFS server file handles 692 for file systems that use vfc_typenum in their fsid, such as ZFS. 693 It will, however, prevent vfc_typenum from changing when file 694 systems are loaded in a different order for subsequent reboots. 695 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 696 until you are ready to remount all NFS clients after a reboot. 697 69820110828: 699 Bump the shared library version numbers for libraries that 700 do not use symbol versioning, have changed the ABI compared 701 to stable/8 and which shared library version was not bumped. 702 Done as part of 9.0-RELEASE cycle. 703 70420110815: 705 During the merge of Capsicum features, the fget(9) KPI was modified. 706 This may require the rebuilding of out-of-tree device drivers -- 707 issues have been reported specifically with the nVidia device driver. 708 __FreeBSD_version is bumped to 900041. 709 710 Also, there is a period between 20110811 and 20110814 where the 711 special devices /dev/{stdin,stdout,stderr} did not work correctly. 712 Building world from a kernel during that window may not work. 713 71420110628: 715 The packet filter (pf) code has been updated to OpenBSD 4.5. 716 You need to update userland tools to be in sync with kernel. 717 This update breaks backward compatibility with earlier pfsync(4) 718 versions. Care must be taken when updating redundant firewall setups. 719 72020110608: 721 The following sysctls and tunables are retired on x86 platforms: 722 machdep.hlt_cpus 723 machdep.hlt_logical_cpus 724 The following sysctl is retired: 725 machdep.hyperthreading_allowed 726 The sysctls were supposed to provide a way to dynamically offline and 727 online selected CPUs on x86 platforms, but the implementation has not 728 been reliable especially with SCHED_ULE scheduler. 729 machdep.hyperthreading_allowed tunable is still available to ignore 730 hyperthreading CPUs at OS level. 731 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 732 where X is an APIC ID of a CPU. Be advised, though, that disabling 733 CPUs in non-uniform fashion will result in non-uniform topology and 734 may lead to sub-optimal system performance with SCHED_ULE, which is 735 a default scheduler. 736 73720110607: 738 cpumask_t type is retired and cpuset_t is used in order to describe 739 a mask of CPUs. 740 74120110531: 742 Changes to ifconfig(8) for dynamic address family detection mandate 743 that you are running a kernel of 20110525 or later. Make sure to 744 follow the update procedure to boot a new kernel before installing 745 world. 746 74720110513: 748 Support for sun4v architecture is officially dropped 749 75020110503: 751 Several KPI breaking changes have been committed to the mii(4) layer, 752 the PHY drivers and consequently some Ethernet drivers using mii(4). 753 This means that miibus.ko and the modules of the affected Ethernet 754 drivers need to be recompiled. 755 756 Note to kernel developers: Given that the OUI bit reversion problem 757 was fixed as part of these changes all mii(4) commits related to OUIs, 758 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 759 handling, no longer can be merged verbatim to stable/8 and previous 760 branches. 761 76220110430: 763 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 764 into their kernel configurations along with 'device pci'. 765 76620110427: 767 The default NFS client is now the new NFS client, so fstype "newnfs" 768 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 769 Although mounts via fstype "nfs" will usually work without userland 770 changes, it is recommended that the mount(8) and mount_nfs(8) 771 commands be rebuilt from sources and that a link to mount_nfs called 772 mount_oldnfs be created. The new client is compiled into the 773 kernel with "options NFSCL" and this is needed for diskless root 774 file systems. The GENERIC kernel configs have been changed to use 775 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 776 To use the regular/old client, you can "mount -t oldnfs ...". For 777 a diskless root file system, you must also include a line like: 778 779 vfs.root.mountfrom="oldnfs:" 780 781 in the boot/loader.conf on the root fs on the NFS server to make 782 a diskless root fs use the old client. 783 78420110424: 785 The GENERIC kernels for all architectures now default to the new 786 CAM-based ATA stack. It means that all legacy ATA drivers were 787 removed and replaced by respective CAM drivers. If you are using 788 ATA device names in /etc/fstab or other places, make sure to update 789 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 790 where 'Y's are the sequential numbers starting from zero for each type 791 in order of detection, unless configured otherwise with tunables, 792 see cam(4)). There will be symbolic links created in /dev/ to map 793 old adX devices to the respective adaY. They should provide basic 794 compatibility for file systems mounting in most cases, but they do 795 not support old user-level APIs and do not have respective providers 796 in GEOM. Consider using updated management tools with new device names. 797 798 It is possible to load devices ahci, ata, siis and mvs as modules, 799 but option ATA_CAM should remain in kernel configuration to make ata 800 module work as CAM driver supporting legacy ATA controllers. Device ata 801 still can be used in modular fashion (atacore + ...). Modules atadisk 802 and atapi* are not used and won't affect operation in ATA_CAM mode. 803 Note that to use CAM-based ATA kernel should include CAM devices 804 scbus, pass, da (or explicitly ada), cd and optionally others. All of 805 them are parts of the cam module. 806 807 ataraid(4) functionality is now supported by the RAID GEOM class. 808 To use it you can load geom_raid kernel module and use graid(8) tool 809 for management. Instead of /dev/arX device names, use /dev/raid/rX. 810 811 No kernel config options or code have been removed, so if a problem 812 arises, please report it and optionally revert to the old ATA stack. 813 In order to do it you can remove from the kernel config: 814 options ATA_CAM 815 device ahci 816 device mvs 817 device siis 818 , and instead add back: 819 device atadisk # ATA disk drives 820 device ataraid # ATA RAID drives 821 device atapicd # ATAPI CDROM drives 822 device atapifd # ATAPI floppy drives 823 device atapist # ATAPI tape drives 824 82520110423: 826 The default NFS server has been changed to the new server, which 827 was referred to as the experimental server. If you need to switch 828 back to the old NFS server, you must now put the "-o" option on 829 both the mountd and nfsd commands. This can be done using the 830 mountd_flags and nfs_server_flags rc.conf variables until an 831 update to the rc scripts is committed, which is coming soon. 832 83320110418: 834 The GNU Objective-C runtime library (libobjc), and other Objective-C 835 related components have been removed from the base system. If you 836 require an Objective-C library, please use one of the available ports. 837 83820110331: 839 ath(4) has been split into bus- and device- modules. if_ath contains 840 the HAL, the TX rate control and the network device code. if_ath_pci 841 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 842 contains the AHB glue. Users need to load both if_ath_pci and if_ath 843 in order to use ath on everything else. 844 845 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 846 need to load if_ath and if_ath_pci for ath(4) operation. 847 84820110314: 849 As part of the replacement of sysinstall, the process of building 850 release media has changed significantly. For details, please re-read 851 release(7), which has been updated to reflect the new build process. 852 85320110218: 854 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 855 is the last available version under GPLv2. It brings a number of new 856 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 857 4.1 and SSE 4.2), better support for powerpc64, a number of new 858 directives, and lots of other small improvements. See the ChangeLog 859 file in contrib/binutils for the full details. 860 86120110218: 862 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 863 compliant, and will now use half of hash for authentication. 864 This will break interoperability with all stacks (including all 865 actual FreeBSD versions) who implement 866 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 867 authentication). 868 The only workaround with such peers is to use another HMAC 869 algorithm for IPsec ("phase 2") authentication. 870 87120110207: 872 Remove the uio_yield prototype and symbol. This function has 873 been misnamed since it was introduced and should not be 874 globally exposed with this name. The equivalent functionality 875 is now available using kern_yield(curthread->td_user_pri). 876 The function remains undocumented. 877 87820110112: 879 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 880 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 881 for scalar sysctls is defined but disabled. Code that needs 882 UQUAD to pass the type checking that must compile on older 883 systems where the define is not present can check against 884 __FreeBSD_version >= 900030. 885 886 The system dialog(1) has been replaced with a new version previously 887 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 888 with the previous version, but the libdialog associated with it has 889 a largely incompatible API. As such, the original version of libdialog 890 will be kept temporarily as libodialog, until its base system consumers 891 are replaced or updated. Bump __FreeBSD_version to 900030. 892 89320110103: 894 If you are trying to run make universe on a -stable system, and you get 895 the following warning: 896 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 897 unknown. config(8) likely too old." 898 or something similar to it, then you must upgrade your -stable system 899 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 900 stable/8) or build the config from the latest stable/8 branch and 901 install it on your system. 902 903 Prior to this date, building a current universe on 8-stable system from 904 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 905 error in the first kernel build phase. A new config on those old 906 systems will fix that problem for older versions of -current. 907 90820101228: 909 The TCP stack has been modified to allow Khelp modules to interact with 910 it via helper hook points and store per-connection data in the TCP 911 control block. Bump __FreeBSD_version to 900029. User space tools that 912 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 913 be recompiled. 914 91520101114: 916 Generic IEEE 802.3 annex 31B full duplex flow control support has been 917 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 918 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 919 to take advantage of it instead of using custom implementations. This 920 means that these drivers now no longer unconditionally advertise 921 support for flow control but only do so if flow control is a selected 922 media option. This was implemented in the generic support that way in 923 order to allow flow control to be switched on and off via ifconfig(8) 924 with the PHY specific default to typically off in order to protect 925 from unwanted effects. Consequently, if you used flow control with 926 one of the above mentioned drivers you now need to explicitly enable 927 it, for example via: 928 ifconfig bge0 media auto mediaopt flowcontrol 929 930 Along with the above mentioned changes generic support for setting 931 1000baseT master mode also has been added and brgphy(4), ciphy(4), 932 e1000phy(4) as well as ip1000phy(4) have been converted to take 933 advantage of it. This means that these drivers now no longer take the 934 link0 parameter for selecting master mode but the master media option 935 has to be used instead, for example like in the following: 936 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 937 938 Selection of master mode now is also available with all other PHY 939 drivers supporting 1000baseT. 940 94120101111: 942 The TCP stack has received a significant update to add support for 943 modularised congestion control and generally improve the clarity of 944 congestion control decisions. Bump __FreeBSD_version to 900025. User 945 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 946 sockstat) need to be recompiled. 947 94820101002: 949 The man(1) utility has been replaced by a new version that no longer 950 uses /etc/manpath.config. Please consult man.conf(5) for how to 951 migrate local entries to the new format. 952 95320100928: 954 The copyright strings printed by login(1) and sshd(8) at the time of a 955 new connection have been removed to follow other operating systems and 956 upstream sshd. 957 95820100915: 959 A workaround for a fixed ld bug has been removed in kernel code, 960 so make sure that your system ld is built from sources after 961 revision 210245 from 2010-07-19 (r211583 if building head kernel 962 on stable/8, r211584 for stable/7; both from 2010-08-21). 963 A symptom of incorrect ld version is different addresses for 964 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 965 96620100913: 967 The $ipv6_prefer variable in rc.conf(5) has been split into 968 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 969 970 The $ip6addrctl_policy is a variable to choose a pre-defined 971 address selection policy set by ip6addrctl(8). A value 972 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 973 default is "AUTO". 974 975 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 976 flag (see an entry of 20090926) is set on an interface with no 977 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 978 security reason. If you want IPv6 link-local address on all 979 interfaces by default, set this to "YES". 980 981 The old ipv6_prefer="YES" is equivalent to 982 ipv6_activate_all_interfaces="YES" and 983 ip6addrctl_policy="ipv6_prefer". 984 98520100913: 986 DTrace has grown support for userland tracing. Due to this, DTrace is 987 now i386 and amd64 only. 988 dtruss(1) is now installed by default on those systems and a new 989 kernel module is needed for userland tracing: fasttrap. 990 No changes to your kernel config file are necessary to enable 991 userland tracing, but you might consider adding 'STRIP=' and 992 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 993 to have informative userland stack traces in DTrace (ustack). 994 99520100725: 996 The acpi_aiboost(4) driver has been removed in favor of the new 997 aibs(4) driver. You should update your kernel configuration file. 998 99920100722: 1000 BSD grep has been imported to the base system and it is built by 1001 default. It is completely BSD licensed, highly GNU-compatible, uses 1002 less memory than its GNU counterpart and has a small codebase. 1003 However, it is slower than its GNU counterpart, which is mostly 1004 noticeable for larger searches, for smaller ones it is measurable 1005 but not significant. The reason is complex, the most important factor 1006 is that we lack a modern and efficient regex library and GNU 1007 overcomes this by optimizing the searches internally. Future work 1008 on improving the regex performance is planned, for the meantime, 1009 users that need better performance, can build GNU grep instead by 1010 setting the WITH_GNU_GREP knob. 1011 101220100713: 1013 Due to the import of powerpc64 support, all existing powerpc kernel 1014 configuration files must be updated with a machine directive like this: 1015 machine powerpc powerpc 1016 1017 In addition, an updated config(8) is required to build powerpc kernels 1018 after this change. 1019 102020100713: 1021 A new version of ZFS (version 15) has been merged to -HEAD. 1022 This version uses a python library for the following subcommands: 1023 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1024 For full functionality of these commands the following port must 1025 be installed: sysutils/py-zfs 1026 102720100429: 1028 'vm_page's are now hashed by physical address to an array of mutexes. 1029 Currently this is only used to serialize access to hold_count. Over 1030 time the page queue mutex will be peeled away. This changes the size 1031 of pmap on every architecture. And requires all callers of vm_page_hold 1032 and vm_page_unhold to be updated. 1033 103420100402: 1035 WITH_CTF can now be specified in src.conf (not recommended, there 1036 are some problems with static executables), make.conf (would also 1037 affect ports which do not use GNU make and do not override the 1038 compile targets) or in the kernel config (via "makeoptions 1039 WITH_CTF=yes"). 1040 When WITH_CTF was specified there before this was silently ignored, 1041 so make sure that WITH_CTF is not used in places which could lead 1042 to unwanted behavior. 1043 104420100311: 1045 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1046 to allow 32-bit compatibility on non-x86 platforms. All kernel 1047 configurations on amd64 and ia64 platforms using these options must 1048 be modified accordingly. 1049 105020100113: 1051 The utmp user accounting database has been replaced with utmpx, 1052 the user accounting interface standardized by POSIX. 1053 Unfortunately the semantics of utmp and utmpx don't match, 1054 making it practically impossible to support both interfaces. 1055 The user accounting database is used by tools like finger(1), 1056 last(1), talk(1), w(1) and ac(8). 1057 1058 All applications in the base system use utmpx. This means only 1059 local binaries (e.g. from the ports tree) may still use these 1060 utmp database files. These applications must be rebuilt to make 1061 use of utmpx. 1062 1063 After the system has been upgraded, it is safe to remove the old 1064 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1065 assuming their contents is of no importance anymore. Old wtmp 1066 databases can only be used by last(1) and ac(8) after they have 1067 been converted to the new format using wtmpcvt(1). 1068 106920100108: 1070 Introduce the kernel thread "deadlock resolver" (which can be enabled 1071 via the DEADLKRES option, see NOTES for more details) and the 1072 sleepq_type() function for sleepqueues. 1073 107420091202: 1075 The rc.firewall and rc.firewall6 were unified, and 1076 rc.firewall6 and rc.d/ip6fw were removed. 1077 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1078 variables are obsoleted. Instead, the following new rc 1079 variables are added to rc.d/ipfw: 1080 1081 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1082 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1083 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1084 1085 The meanings correspond to the relevant IPv4 variables. 1086 108720091125: 1088 8.0-RELEASE. 1089 109020091113: 1091 The default terminal emulation for syscons(4) has been changed 1092 from cons25 to xterm on all platforms except pc98. This means 1093 that the /etc/ttys file needs to be updated to ensure correct 1094 operation of applications on the console. 1095 1096 The terminal emulation style can be toggled per window by using 1097 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1098 options can be used to change the compile-time default back to 1099 cons25. 1100 1101 To prevent graphical artifacts, make sure the TERM environment 1102 variable is set to match the terminal emulation that is being 1103 performed by syscons(4). 1104 110520091109: 1106 The layout of the structure ieee80211req_scan_result has changed. 1107 Applications that require wireless scan results (e.g. ifconfig(8)) 1108 from net80211 need to be recompiled. 1109 1110 Applications such as wpa_supplicant(8) may require a full world 1111 build without using NO_CLEAN in order to get synchronized with the 1112 new structure. 1113 111420091025: 1115 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1116 There's one kernel module for each firmware. Adding "device iwnfw" 1117 to the kernel configuration file means including all three firmware 1118 images inside the kernel. If you want to include just the one for 1119 your wireless card, use the devices iwn4965fw, iwn5000fw or 1120 iwn5150fw. 1121 112220090926: 1123 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1124 into rc.d/netif. The changes are the following: 1125 1126 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1127 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1128 Note that both variables need the "inet6" keyword at the head. 1129 1130 Do not set $ipv6_network_interfaces manually if you do not 1131 understand what you are doing. It is not needed in most cases. 1132 1133 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1134 they are obsolete. 1135 1136 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1137 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1138 1139 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1140 all configured interfaces have "inet6 accept_rtadv" in the 1141 $ifconfig_IF_ipv6. These are for backward compatibility. 1142 1143 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1144 functionality of interfaces with no corresponding 1145 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1146 and the default address selection policy of ip6addrctl(8) 1147 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1148 Note that if you want to configure IPv6 functionality on the 1149 disabled interfaces after boot, first you need to clear the flag by 1150 using ifconfig(8) like: 1151 1152 ifconfig em0 inet6 -ifdisabled 1153 1154 If YES, the default address selection policy is set as 1155 IPv6-preferred. 1156 1157 The default value of $ipv6_prefer is NO. 1158 1159 4. If your system need to receive Router Advertisement messages, 1160 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1161 scripts automatically invoke rtsol(8) when the interface becomes 1162 UP. The Router Advertisement messages are used for SLAAC 1163 (State-Less Address AutoConfiguration). 1164 116520090922: 1166 802.11s D3.03 support was committed. This is incompatible with the 1167 previous code, which was based on D3.0. 1168 116920090912: 1170 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1171 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1172 control whether accepting Router Advertisement messages or not. 1173 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1174 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1175 The ifconfig(8) utility now supports these flags. 1176 117720090910: 1178 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1179 mount(8) and -a option for df(1) to see them. 1180 118120090825: 1182 The old tunable hw.bus.devctl_disable has been superseded by 1183 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1184 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1185 is 1000. 1186 118720090813: 1188 Remove the option STOP_NMI. The default action is now to use NMI only 1189 for KDB via the newly introduced function stop_cpus_hard() and 1190 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1191 119220090803: 1193 The stable/8 branch created in subversion. This corresponds to the 1194 RELENG_8 branch in CVS. 1195 119620090719: 1197 Bump the shared library version numbers for all libraries that do not 1198 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1199 __FreeBSD_version to 800105. 1200 120120090714: 1202 Due to changes in the implementation of virtual network stack support, 1203 all network-related kernel modules must be recompiled. As this change 1204 breaks the ABI, bump __FreeBSD_version to 800104. 1205 120620090713: 1207 The TOE interface to the TCP syncache has been modified to remove 1208 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1209 The cxgb driver is the only TOE consumer affected by this change, and 1210 needs to be recompiled along with the kernel. As this change breaks 1211 the ABI, bump __FreeBSD_version to 800103. 1212 121320090712: 1214 Padding has been added to struct tcpcb, sackhint and tcpstat in 1215 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1216 maintaining the ABI. However, this change breaks the ABI, so bump 1217 __FreeBSD_version to 800102. User space tools that rely on the size of 1218 any of these structs (e.g. sockstat) need to be recompiled. 1219 122020090630: 1221 The NFS_LEGACYRPC option has been removed along with the old kernel 1222 RPC implementation that this option selected. Kernel configurations 1223 may need to be adjusted. 1224 122520090629: 1226 The network interface device nodes at /dev/net/<interface> have been 1227 removed. All ioctl operations can be performed the normal way using 1228 routing sockets. The kqueue functionality can generally be replaced 1229 with routing sockets. 1230 123120090628: 1232 The documentation from the FreeBSD Documentation Project (Handbook, 1233 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1234 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1235 123620090624: 1237 The ABI of various structures related to the SYSV IPC API have been 1238 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1239 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1240 800100. 1241 124220090622: 1243 Layout of struct vnet has changed as routing related variables were 1244 moved to their own Vimage module. Modules need to be recompiled. Bump 1245 __FreeBSD_version to 800099. 1246 124720090619: 1248 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1249 respectively. As long as no more than 16 groups per process are used, 1250 no changes should be visible. When more than 16 groups are used, old 1251 binaries may fail if they call getgroups() or getgrouplist() with 1252 statically sized storage. Recompiling will work around this, but 1253 applications should be modified to use dynamically allocated storage 1254 for group arrays as POSIX.1-2008 does not cap an implementation's 1255 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1256 1257 NFS and portalfs mounts may also be affected as the list of groups is 1258 truncated to 16. Users of NFS who use more than 16 groups, should 1259 take care that negative group permissions are not used on the exported 1260 file systems as they will not be reliable unless a GSSAPI based 1261 authentication method is used. 1262 126320090616: 1264 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1265 option compiles in the support for adaptive spinning for lockmgrs 1266 which want to enable it. The lockinit() function now accepts the flag 1267 LK_ADAPTIVE in order to make the lock object subject to adaptive 1268 spinning when both held in write and read mode. 1269 127020090613: 1271 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1272 changed. User applications that use this ioctl need to be rebuilt. 1273 127420090611: 1275 The layout of struct thread has changed. Kernel and modules need to 1276 be rebuilt. 1277 127820090608: 1279 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1280 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1281 128220090602: 1283 window(1) has been removed from the base system. It can now be 1284 installed from ports. The port is called misc/window. 1285 128620090601: 1287 The way we are storing and accessing `routing table' entries has 1288 changed. Programs reading the FIB, like netstat, need to be 1289 re-compiled. 1290 129120090601: 1292 A new netisr implementation has been added for FreeBSD 8. Network 1293 file system modules, such as igmp, ipdivert, and others, should be 1294 rebuilt. 1295 Bump __FreeBSD_version to 800096. 1296 129720090530: 1298 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1299 more valid. 1300 130120090530: 1302 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1303 Bump __FreeBSD_version to 800094. 1304 130520090529: 1306 Add mnt_xflag field to 'struct mount'. File system modules need to be 1307 rebuilt. 1308 Bump __FreeBSD_version to 800093. 1309 131020090528: 1311 The compiling option ADAPTIVE_SX has been retired while it has been 1312 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1313 The KPI for sx_init_flags() changes as accepting flags: 1314 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1315 been introduced in order to handle the reversed logic. 1316 Bump __FreeBSD_version to 800092. 1317 131820090527: 1319 Add support for hierarchical jails. Remove global securelevel. 1320 Bump __FreeBSD_version to 800091. 1321 132220090523: 1323 The layout of struct vnet_net has changed, therefore modules 1324 need to be rebuilt. 1325 Bump __FreeBSD_version to 800090. 1326 132720090523: 1328 The newly imported zic(8) produces a new format in the output. Please 1329 run tzsetup(8) to install the newly created data to /etc/localtime. 1330 133120090520: 1332 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1333 hw.usb.* and is now consistent again with previous releases. 1334 133520090520: 1336 802.11 monitor mode support was revised and driver api's were changed. 1337 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1338 of DLT_IEEE802_11. No user-visible data structures were changed but 1339 applications that use DLT_IEEE802_11 may require changes. 1340 Bump __FreeBSD_version to 800088. 1341 134220090430: 1343 The layout of the following structs has changed: sysctl_oid, 1344 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1345 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1346 panics may be experienced. World rebuild is required for 1347 correctly checking networking state from userland. 1348 Bump __FreeBSD_version to 800085. 1349 135020090429: 1351 MLDv2 and Source-Specific Multicast (SSM) have been merged 1352 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1353 The implementation of SSM within FreeBSD's IPv6 stack closely 1354 follows the IPv4 implementation. 1355 1356 For kernel developers: 1357 1358 * The most important changes are that the ip6_output() and 1359 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1360 and this lock has been downgraded to a non-recursive mutex. 1361 1362 * As with the changes to the IPv4 stack to support SSM, filtering 1363 of inbound multicast traffic must now be performed by transport 1364 protocols within the IPv6 stack. This does not apply to TCP and 1365 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1366 1367 * The KPIs used by IPv6 multicast are similar to those used by 1368 the IPv4 stack, with the following differences: 1369 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1370 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1371 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1372 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1373 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1374 for MLDv1 have an additional 'timer' argument which is used to 1375 jitter the initial membership report for the solicited-node 1376 multicast membership on-link. 1377 * This is not strictly needed for MLDv2, which already jitters 1378 its report transmissions. However, the 'timer' argument is 1379 preserved in case MLDv1 is active on the interface. 1380 1381 * The KAME linked-list based IPv6 membership implementation has 1382 been refactored to use a vector similar to that used by the IPv4 1383 stack. 1384 Code which maintains a list of its own multicast memberships 1385 internally, e.g. carp, has been updated to reflect the new 1386 semantics. 1387 1388 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1389 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1390 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1391 implementation constraint which needs to be addressed in HEAD. 1392 1393 For application developers: 1394 1395 * The changes are broadly similar to those made for the IPv4 1396 stack. 1397 1398 * The use of IPv4 and IPv6 multicast socket options on the same 1399 socket, using mapped addresses, HAS NOT been tested or supported. 1400 1401 * There are a number of issues with the implementation of various 1402 IPv6 multicast APIs which need to be resolved in the API surface 1403 before the implementation is fully compatible with KAME userland 1404 use, and these are mostly to do with interface index treatment. 1405 1406 * The literature available discusses the use of either the delta / ASM 1407 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1408 using setsourcefilter(3)/getsourcefilter(3). For more information 1409 please refer to RFC 3768, 'Socket Interface Extensions for 1410 Multicast Source Filters'. 1411 1412 * Applications which use the published RFC 3678 APIs should be fine. 1413 1414 For systems administrators: 1415 1416 * The mtest(8) utility has been refactored to support IPv6, in 1417 addition to IPv4. Interface addresses are no longer accepted 1418 as arguments, their names must be used instead. The utility 1419 will map the interface name to its first IPv4 address as 1420 returned by getifaddrs(3). 1421 1422 * The ifmcstat(8) utility has also been updated to print the MLDv2 1423 endpoint state and source filter lists via sysctl(3). 1424 1425 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1426 loopback of IPv6 multicast datagrams by default; it defaults to 1 1427 to preserve the existing behaviour. Disabling multicast loopback is 1428 recommended for optimal system performance. 1429 1430 * The IPv6 MROUTING code has been changed to examine this sysctl 1431 instead of attempting to perform a group lookup before looping 1432 back forwarded datagrams. 1433 1434 Bump __FreeBSD_version to 800084. 1435 143620090422: 1437 Implement low-level Bluetooth HCI API. 1438 Bump __FreeBSD_version to 800083. 1439 144020090419: 1441 The layout of struct malloc_type, used by modules to register new 1442 memory allocation types, has changed. Most modules will need to 1443 be rebuilt or panics may be experienced. 1444 Bump __FreeBSD_version to 800081. 1445 144620090415: 1447 Anticipate overflowing inp_flags - add inp_flags2. 1448 This changes most offsets in inpcb, so checking v4 connection 1449 state will require a world rebuild. 1450 Bump __FreeBSD_version to 800080. 1451 145220090415: 1453 Add an llentry to struct route and struct route_in6. Modules 1454 embedding a struct route will need to be recompiled. 1455 Bump __FreeBSD_version to 800079. 1456 145720090414: 1458 The size of rt_metrics_lite and by extension rtentry has changed. 1459 Networking administration apps will need to be recompiled. 1460 The route command now supports show as an alias for get, weighting 1461 of routes, sticky and nostick flags to alter the behavior of stateful 1462 load balancing. 1463 Bump __FreeBSD_version to 800078. 1464 146520090408: 1466 Do not use Giant for kbdmux(4) locking. This is wrong and 1467 apparently causing more problems than it solves. This will 1468 re-open the issue where interrupt handlers may race with 1469 kbdmux(4) in polling mode. Typical symptoms include (but 1470 not limited to) duplicated and/or missing characters when 1471 low level console functions (such as gets) are used while 1472 interrupts are enabled (for example geli password prompt, 1473 mountroot prompt etc.). Disabling kbdmux(4) may help. 1474 147520090407: 1476 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1477 kernel modules referencing any of the above need to be recompiled. 1478 Bump __FreeBSD_version to 800075. 1479 148020090320: 1481 GEOM_PART has become the default partition slicer for storage devices, 1482 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1483 introduces some changes: 1484 1485 MSDOS/EBR: the devices created from MSDOS extended partition entries 1486 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1487 to devices with offset-based names. fstabs may need to be modified. 1488 1489 BSD: the "geometry does not match label" warning is harmless in most 1490 cases but it points to problems in file system misalignment with 1491 disk geometry. The "c" partition is now implicit, covers the whole 1492 top-level drive and cannot be (mis)used by users. 1493 1494 General: Kernel dumps are now not allowed to be written to devices 1495 whose partition types indicate they are meant to be used for file 1496 systems (or, in case of MSDOS partitions, as something else than 1497 the "386BSD" type). 1498 1499 Most of these changes date approximately from 200812. 1500 150120090319: 1502 The uscanner(4) driver has been removed from the kernel. This follows 1503 Linux removing theirs in 2.6 and making libusb the default interface 1504 (supported by sane). 1505 150620090319: 1507 The multicast forwarding code has been cleaned up. netstat(1) 1508 only relies on KVM now for printing bandwidth upcall meters. 1509 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1510 ip6_mroute_mod respectively. The config(5) options for statically 1511 compiling this code remain the same, i.e. 'options MROUTING'. 1512 151320090315: 1514 Support for the IFF_NEEDSGIANT network interface flag has been 1515 removed, which means that non-MPSAFE network device drivers are no 1516 longer supported. In particular, if_ar, if_sr, and network device 1517 drivers from the old (legacy) USB stack can no longer be built or 1518 used. 1519 152020090313: 1521 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1522 a bunch of new language catalog files have also been added. 1523 This means that some common libc messages are now localized and 1524 they depend on the LC_MESSAGES environmental variable. 1525 152620090313: 1527 The k8temp(4) driver has been renamed to amdtemp(4) since 1528 support for Family 10 and Family 11 CPU families was added. 1529 153020090309: 1531 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1532 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1533 1534 For kernel developers, the most important changes are that the 1535 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1536 and this lock has been downgraded to a non-recursive mutex. 1537 1538 Transport protocols (UDP, Raw IP) are now responsible for filtering 1539 inbound multicast traffic according to group membership and source 1540 filters. The imo_multicast_filter() KPI exists for this purpose. 1541 Transports which do not use multicast (SCTP, TCP) already reject 1542 multicast by default. Forwarding and receive performance may improve 1543 as a mutex acquisition is no longer needed in the ip_input() 1544 low-level input path. in_addmulti() and in_delmulti() are shimmed 1545 to new KPIs which exist to support SSM in-kernel. 1546 1547 For application developers, it is recommended that loopback of 1548 multicast datagrams be disabled for best performance, as this 1549 will still cause the lock to be taken for each looped-back 1550 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1551 be tuned to 0 to disable loopback by default; it defaults to 1 1552 to preserve the existing behaviour. 1553 1554 For systems administrators, to obtain best performance with 1555 multicast reception and multiple groups, it is always recommended 1556 that a card with a suitably precise hash filter is used. Hash 1557 collisions will still result in the lock being taken within the 1558 transport protocol input path to check group membership. 1559 1560 If deploying FreeBSD in an environment with IGMP snooping switches, 1561 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1562 enabled; this forces 224.0.0.0/24 group membership to be announced 1563 via IGMP. 1564 1565 The size of 'struct igmpstat' has changed; netstat needs to be 1566 recompiled to reflect this. 1567 Bump __FreeBSD_version to 800070. 1568 156920090309: 1570 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1571 updated to use it. This requires a buildworld/installworld in order to 1572 update the library and dependencies (usbconfig, etc). Its advisable to 1573 rebuild all ports which uses libusb. More specific directions are given 1574 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1575 libusb are no longer required and can be removed. 1576 157720090302: 1578 A workaround is committed to allow the creation of System V shared 1579 memory segment of size > 2 GB on the 64-bit architectures. 1580 Due to a limitation of the existing ABI, the shm_segsz member 1581 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1582 wrong for large segments. Note that limits must be explicitly 1583 raised to allow such segments to be created. 1584 158520090301: 1586 The layout of struct ifnet has changed, requiring a rebuild of all 1587 network device driver modules. 1588 158920090227: 1590 The /dev handling for the new USB stack has changed, a 1591 buildworld/installworld is required for libusb20. 1592 159320090223: 1594 The new USB2 stack has now been permanently moved in and all kernel and 1595 module names reverted to their previous values (eg, usb, ehci, ohci, 1596 ums, ...). The old usb stack can be compiled in by prefixing the name 1597 with the letter 'o', the old usb modules have been removed. 1598 Updating entry 20090216 for xorg and 20090215 for libmap may still 1599 apply. 1600 160120090217: 1602 The rc.conf(5) option if_up_delay has been renamed to 1603 defaultroute_delay to better reflect its purpose. If you have 1604 customized this setting in /etc/rc.conf you need to update it to 1605 use the new name. 1606 160720090216: 1608 xorg 7.4 wants to configure its input devices via hald which does not 1609 yet work with USB2. If the keyboard/mouse does not work in xorg then 1610 add 1611 Option "AllowEmptyInput" "off" 1612 to your ServerLayout section. This will cause X to use the configured 1613 kbd and mouse sections from your xorg.conf. 1614 161520090215: 1616 The GENERIC kernels for all architectures now default to the new USB2 1617 stack. No kernel config options or code have been removed so if a 1618 problem arises please report it and optionally revert to the old USB 1619 stack. If you are loading USB kernel modules or have a custom kernel 1620 that includes GENERIC then ensure that usb names are also changed over, 1621 eg uftdi -> usb2_serial_ftdi. 1622 1623 Older programs linked against the ports libusb 0.1 need to be 1624 redirected to the new stack's libusb20. /etc/libmap.conf can 1625 be used for this: 1626 # Map old usb library to new one for usb2 stack 1627 libusb-0.1.so.8 libusb20.so.1 1628 162920090209: 1630 All USB ethernet devices now attach as interfaces under the name ueN 1631 (eg. ue0). This is to provide a predictable name as vendors often 1632 change usb chipsets in a product without notice. 1633 163420090203: 1635 The ichsmb(4) driver has been changed to require SMBus slave 1636 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1637 All of the other SMBus controller drivers require left-justified 1638 slave addresses, so this change makes all the drivers provide the 1639 same interface. 1640 164120090201: 1642 INET6 statistics (struct ip6stat) was updated. 1643 netstat(1) needs to be recompiled. 1644 164520090119: 1646 NTFS has been removed from GENERIC kernel on amd64 to match 1647 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1648 will load ntfs.ko module automatically when NTFS support is 1649 actually needed, unless ntfs.ko is not installed or security 1650 level prohibits loading kernel modules. If either is the case, 1651 "options NTFS" has to be added into kernel config. 1652 165320090115: 1654 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1655 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1656 800061. User space tools that rely on the size of struct tcpcb in 1657 tcp_var.h (e.g. sockstat) need to be recompiled. 1658 165920081225: 1660 ng_tty(4) module updated to match the new TTY subsystem. 1661 Due to API change, user-level applications must be updated. 1662 New API support added to mpd5 CVS and expected to be present 1663 in next mpd5.3 release. 1664 166520081219: 1666 With __FreeBSD_version 800060 the makefs tool is part of 1667 the base system (it was a port). 1668 166920081216: 1670 The afdata and ifnet locks have been changed from mutexes to 1671 rwlocks, network modules will need to be re-compiled. 1672 167320081214: 1674 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1675 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1676 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1677 architecture and 40 bytes on 64-bit architecture. The userland 1678 applications "arp" and "ndp" have been updated accordingly. 1679 The output from "netstat -r" shows only routing entries and 1680 none of the L2 information. 1681 168220081130: 1683 __FreeBSD_version 800057 marks the switchover from the 1684 binary ath hal to source code. Users must add the line: 1685 1686 options AH_SUPPORT_AR5416 1687 1688 to their kernel config files when specifying: 1689 1690 device ath_hal 1691 1692 The ath_hal module no longer exists; the code is now compiled 1693 together with the driver in the ath module. It is now 1694 possible to tailor chip support (i.e. reduce the set of chips 1695 and thereby the code size); consult ath_hal(4) for details. 1696 169720081121: 1698 __FreeBSD_version 800054 adds memory barriers to 1699 <machine/atomic.h>, new interfaces to ifnet to facilitate 1700 multiple hardware transmit queues for cards that support 1701 them, and a lock-less ring-buffer implementation to 1702 enable drivers to more efficiently manage queueing of 1703 packets. 1704 170520081117: 1706 A new version of ZFS (version 13) has been merged to -HEAD. 1707 This version has zpool attribute "listsnapshots" off by 1708 default, which means "zfs list" does not show snapshots, 1709 and is the same as Solaris behavior. 1710 171120081028: 1712 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1713 171420081009: 1715 The uhci, ohci, ehci and slhci USB Host controller drivers have 1716 been put into separate modules. If you load the usb module 1717 separately through loader.conf you will need to load the 1718 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1719 controller add the following to loader.conf: 1720 1721 uhci_load="YES" 1722 ehci_load="YES" 1723 172420081009: 1725 The ABI used by the PMC toolset has changed. Please keep 1726 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1727 sync. 1728 172920081009: 1730 atapci kernel module now includes only generic PCI ATA 1731 driver. AHCI driver moved to ataahci kernel module. 1732 All vendor-specific code moved into separate kernel modules: 1733 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1734 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1735 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1736 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1737 173820080820: 1739 The TTY subsystem of the kernel has been replaced by a new 1740 implementation, which provides better scalability and an 1741 improved driver model. Most common drivers have been migrated to 1742 the new TTY subsystem, while others have not. The following 1743 drivers have not yet been ported to the new TTY layer: 1744 1745 PCI/ISA: 1746 cy, digi, rc, rp, sio 1747 1748 USB: 1749 ubser, ucycom 1750 1751 Line disciplines: 1752 ng_h4, ng_tty, ppp, sl, snp 1753 1754 Adding these drivers to your kernel configuration file shall 1755 cause compilation to fail. 1756 175720080818: 1758 ntpd has been upgraded to 4.2.4p5. 1759 176020080801: 1761 OpenSSH has been upgraded to 5.1p1. 1762 1763 For many years, FreeBSD's version of OpenSSH preferred DSA 1764 over RSA for host and user authentication keys. With this 1765 upgrade, we've switched to the vendor's default of RSA over 1766 DSA. This may cause upgraded clients to warn about unknown 1767 host keys even for previously known hosts. Users should 1768 follow the usual procedure for verifying host keys before 1769 accepting the RSA key. 1770 1771 This can be circumvented by setting the "HostKeyAlgorithms" 1772 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1773 command line. 1774 1775 Please note that the sequence of keys offered for 1776 authentication has been changed as well. You may want to 1777 specify IdentityFile in a different order to revert this 1778 behavior. 1779 178020080713: 1781 The sio(4) driver has been removed from the i386 and amd64 1782 kernel configuration files. This means uart(4) is now the 1783 default serial port driver on those platforms as well. 1784 1785 To prevent collisions with the sio(4) driver, the uart(4) driver 1786 uses different names for its device nodes. This means the 1787 onboard serial port will now most likely be called "ttyu0" 1788 instead of "ttyd0". You may need to reconfigure applications to 1789 use the new device names. 1790 1791 When using the serial port as a boot console, be sure to update 1792 /boot/device.hints and /etc/ttys before booting the new kernel. 1793 If you forget to do so, you can still manually specify the hints 1794 at the loader prompt: 1795 1796 set hint.uart.0.at="isa" 1797 set hint.uart.0.port="0x3F8" 1798 set hint.uart.0.flags="0x10" 1799 set hint.uart.0.irq="4" 1800 boot -s 1801 180220080609: 1803 The gpt(8) utility has been removed. Use gpart(8) to partition 1804 disks instead. 1805 180620080603: 1807 The version that Linuxulator emulates was changed from 2.4.2 1808 to 2.6.16. If you experience any problems with Linux binaries 1809 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1810 if it fixes the problem contact emulation mailing list. 1811 181220080525: 1813 ISDN4BSD (I4B) was removed from the src tree. You may need to 1814 update a your kernel configuration and remove relevant entries. 1815 181620080509: 1817 I have checked in code to support multiple routing tables. 1818 See the man pages setfib(1) and setfib(2). 1819 This is a hopefully backwards compatible version, 1820 but to make use of it you need to compile your kernel 1821 with options ROUTETABLES=2 (or more up to 16). 1822 182320080420: 1824 The 802.11 wireless support was redone to enable multi-bss 1825 operation on devices that are capable. The underlying device 1826 is no longer used directly but instead wlanX devices are 1827 cloned with ifconfig. This requires changes to rc.conf files. 1828 For example, change: 1829 ifconfig_ath0="WPA DHCP" 1830 to 1831 wlans_ath0=wlan0 1832 ifconfig_wlan0="WPA DHCP" 1833 see rc.conf(5) for more details. In addition, mergemaster of 1834 /etc/rc.d is highly recommended. Simultaneous update of userland 1835 and kernel wouldn't hurt either. 1836 1837 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1838 modules were merged into the base wlan module. All references 1839 to these modules (e.g. in kernel config files) must be removed. 1840 184120080408: 1842 psm(4) has gained write(2) support in native operation level. 1843 Arbitrary commands can be written to /dev/psm%d and status can 1844 be read back from it. Therefore, an application is responsible 1845 for status validation and error recovery. It is a no-op in 1846 other operation levels. 1847 184820080312: 1849 Support for KSE threading has been removed from the kernel. To 1850 run legacy applications linked against KSE libmap.conf may 1851 be used. The following libmap.conf may be used to ensure 1852 compatibility with any prior release: 1853 1854 libpthread.so.1 libthr.so.1 1855 libpthread.so.2 libthr.so.2 1856 libkse.so.3 libthr.so.3 1857 185820080301: 1859 The layout of struct vmspace has changed. This affects libkvm 1860 and any executables that link against libkvm and use the 1861 kvm_getprocs() function. In particular, but not exclusively, 1862 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1863 The effects are minimal, but it's advisable to upgrade world 1864 nonetheless. 1865 186620080229: 1867 The latest em driver no longer has support in it for the 1868 82575 adapter, this is now moved to the igb driver. The 1869 split was done to make new features that are incompatible 1870 with older hardware easier to do. 1871 187220080220: 1873 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1874 likewise the kernel option is now GEOM_LINUX_LVM. 1875 187620080211: 1877 The default NFS mount mode has changed from UDP to TCP for 1878 increased reliability. If you rely on (insecurely) NFS 1879 mounting across a firewall you may need to update your 1880 firewall rules. 1881 188220080208: 1883 Belatedly note the addition of m_collapse for compacting 1884 mbuf chains. 1885 188620080126: 1887 The fts(3) structures have been changed to use adequate 1888 integer types for their members and so to be able to cope 1889 with huge file trees. The old fts(3) ABI is preserved 1890 through symbol versioning in libc, so third-party binaries 1891 using fts(3) should still work, although they will not take 1892 advantage of the extended types. At the same time, some 1893 third-party software might fail to build after this change 1894 due to unportable assumptions made in its source code about 1895 fts(3) structure members. Such software should be fixed 1896 by its vendor or, in the worst case, in the ports tree. 1897 FreeBSD_version 800015 marks this change for the unlikely 1898 case that a portable fix is impossible. 1899 190020080123: 1901 To upgrade to -current after this date, you must be running 1902 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1903 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1904 190520071128: 1906 The ADAPTIVE_GIANT kernel option has been retired because its 1907 functionality is the default now. 1908 190920071118: 1910 The AT keyboard emulation of sunkbd(4) has been turned on 1911 by default. In order to make the special symbols of the Sun 1912 keyboards driven by sunkbd(4) work under X these now have 1913 to be configured the same way as Sun USB keyboards driven 1914 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1915 1916 Option "XkbLayout" "us" 1917 Option "XkbRules" "xorg" 1918 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1919 192020071024: 1921 It has been decided that it is desirable to provide ABI 1922 backwards compatibility to the FreeBSD 4/5/6 versions of the 1923 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1924 broken with the introduction of PCI domain support (see the 1925 20070930 entry). Unfortunately, this required the ABI of 1926 PCIOCGETCONF to be broken again in order to be able to 1927 provide backwards compatibility to the old version of that 1928 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1929 again. As for prominent ports this affects neither pciutils 1930 nor xorg-server this time, the hal port needs to be rebuilt 1931 however. 1932 193320071020: 1934 The misnamed kthread_create() and friends have been renamed 1935 to kproc_create() etc. Many of the callers already 1936 used kproc_start().. 1937 I will return kthread_create() and friends in a while 1938 with implementations that actually create threads, not procs. 1939 Renaming corresponds with version 800002. 1940 194120071010: 1942 RELENG_7 branched. 1943 1944COMMON ITEMS: 1945 1946 General Notes 1947 ------------- 1948 Avoid using make -j when upgrading. While generally safe, there are 1949 sometimes problems using -j to upgrade. If your upgrade fails with 1950 -j, please try again without -j. From time to time in the past there 1951 have been problems using -j with buildworld and/or installworld. This 1952 is especially true when upgrading between "distant" versions (eg one 1953 that cross a major release boundary or several minor releases, or when 1954 several months have passed on the -current branch). 1955 1956 Sometimes, obscure build problems are the result of environment 1957 poisoning. This can happen because the make utility reads its 1958 environment when searching for values for global variables. To run 1959 your build attempts in an "environmental clean room", prefix all make 1960 commands with 'env -i '. See the env(1) manual page for more details. 1961 1962 When upgrading from one major version to another it is generally best 1963 to upgrade to the latest code in the currently installed branch first, 1964 then do an upgrade to the new branch. This is the best-tested upgrade 1965 path, and has the highest probability of being successful. Please try 1966 this approach before reporting problems with a major version upgrade. 1967 1968 When upgrading a live system, having a root shell around before 1969 installing anything can help undo problems. Not having a root shell 1970 around can lead to problems if pam has changed too much from your 1971 starting point to allow continued authentication after the upgrade. 1972 1973 ZFS notes 1974 --------- 1975 When upgrading the boot ZFS pool to a new version, always follow 1976 these two steps: 1977 1978 1.) recompile and reinstall the ZFS boot loader and boot block 1979 (this is part of "make buildworld" and "make installworld") 1980 1981 2.) update the ZFS boot block on your boot drive 1982 1983 The following example updates the ZFS boot block on the first 1984 partition (freebsd-boot) of a GPT partitioned drive ad0: 1985 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1986 1987 Non-boot pools do not need these updates. 1988 1989 To build a kernel 1990 ----------------- 1991 If you are updating from a prior version of FreeBSD (even one just 1992 a few days old), you should follow this procedure. It is the most 1993 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1994 1995 make kernel-toolchain 1996 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1997 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1998 1999 To test a kernel once 2000 --------------------- 2001 If you just want to boot a kernel once (because you are not sure 2002 if it works, or if you want to boot a known bad kernel to provide 2003 debugging information) run 2004 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2005 nextboot -k testkernel 2006 2007 To just build a kernel when you know that it won't mess you up 2008 -------------------------------------------------------------- 2009 This assumes you are already running a CURRENT system. Replace 2010 ${arch} with the architecture of your machine (e.g. "i386", 2011 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2012 2013 cd src/sys/${arch}/conf 2014 config KERNEL_NAME_HERE 2015 cd ../compile/KERNEL_NAME_HERE 2016 make depend 2017 make 2018 make install 2019 2020 If this fails, go to the "To build a kernel" section. 2021 2022 To rebuild everything and install it on the current system. 2023 ----------------------------------------------------------- 2024 # Note: sometimes if you are running current you gotta do more than 2025 # is listed here if you are upgrading from a really old current. 2026 2027 <make sure you have good level 0 dumps> 2028 make buildworld 2029 make kernel KERNCONF=YOUR_KERNEL_HERE 2030 [1] 2031 <reboot in single user> [3] 2032 mergemaster -p [5] 2033 make installworld 2034 mergemaster -i [4] 2035 make delete-old [6] 2036 <reboot> 2037 2038 To cross-install current onto a separate partition 2039 -------------------------------------------------- 2040 # In this approach we use a separate partition to hold 2041 # current's root, 'usr', and 'var' directories. A partition 2042 # holding "/", "/usr" and "/var" should be about 2GB in 2043 # size. 2044 2045 <make sure you have good level 0 dumps> 2046 <boot into -stable> 2047 make buildworld 2048 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2049 <maybe newfs current's root partition> 2050 <mount current's root partition on directory ${CURRENT_ROOT}> 2051 make installworld DESTDIR=${CURRENT_ROOT} 2052 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2053 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2054 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2055 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2056 <reboot into current> 2057 <do a "native" rebuild/install as described in the previous section> 2058 <maybe install compatibility libraries from ports/misc/compat*> 2059 <reboot> 2060 2061 2062 To upgrade in-place from stable to current 2063 ---------------------------------------------- 2064 <make sure you have good level 0 dumps> 2065 make buildworld [9] 2066 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2067 [1] 2068 <reboot in single user> [3] 2069 mergemaster -p [5] 2070 make installworld 2071 mergemaster -i [4] 2072 make delete-old [6] 2073 <reboot> 2074 2075 Make sure that you've read the UPDATING file to understand the 2076 tweaks to various things you need. At this point in the life 2077 cycle of current, things change often and you are on your own 2078 to cope. The defaults can also change, so please read ALL of 2079 the UPDATING entries. 2080 2081 Also, if you are tracking -current, you must be subscribed to 2082 freebsd-current@freebsd.org. Make sure that before you update 2083 your sources that you have read and understood all the recent 2084 messages there. If in doubt, please track -stable which has 2085 much fewer pitfalls. 2086 2087 [1] If you have third party modules, such as vmware, you 2088 should disable them at this point so they don't crash your 2089 system on reboot. 2090 2091 [3] From the bootblocks, boot -s, and then do 2092 fsck -p 2093 mount -u / 2094 mount -a 2095 cd src 2096 adjkerntz -i # if CMOS is wall time 2097 Also, when doing a major release upgrade, it is required that 2098 you boot into single user mode to do the installworld. 2099 2100 [4] Note: This step is non-optional. Failure to do this step 2101 can result in a significant reduction in the functionality of the 2102 system. Attempting to do it by hand is not recommended and those 2103 that pursue this avenue should read this file carefully, as well 2104 as the archives of freebsd-current and freebsd-hackers mailing lists 2105 for potential gotchas. The -U option is also useful to consider. 2106 See mergemaster(8) for more information. 2107 2108 [5] Usually this step is a noop. However, from time to time 2109 you may need to do this if you get unknown user in the following 2110 step. It never hurts to do it all the time. You may need to 2111 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2112 install) after the buildworld before this step if you last updated 2113 from current before 20130425 or from -stable before 20130430. 2114 2115 [6] This only deletes old files and directories. Old libraries 2116 can be deleted by "make delete-old-libs", but you have to make 2117 sure that no program is using those libraries anymore. 2118 2119 [8] In order to have a kernel that can run the 4.x binaries needed to 2120 do an installworld, you must include the COMPAT_FREEBSD4 option in 2121 your kernel. Failure to do so may leave you with a system that is 2122 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2123 required to run the 5.x binaries on more recent kernels. And so on 2124 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2125 2126 Make sure that you merge any new devices from GENERIC since the 2127 last time you updated your kernel config file. 2128 2129 [9] When checking out sources, you must include the -P flag to have 2130 cvs prune empty directories. 2131 2132 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2133 "?=" instead of the "=" assignment operator, so that buildworld can 2134 override the CPUTYPE if it needs to. 2135 2136 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2137 not on the command line, or in /etc/make.conf. buildworld will 2138 warn if it is improperly defined. 2139FORMAT: 2140 2141This file contains a list, in reverse chronological order, of major 2142breakages in tracking -current. It is not guaranteed to be a complete 2143list of such breakages, and only contains entries since October 10, 2007. 2144If you need to see UPDATING entries from before that date, you will need 2145to fetch an UPDATING file from an older FreeBSD release. 2146 2147Copyright information: 2148 2149Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2150 2151Redistribution, publication, translation and use, with or without 2152modification, in full or in part, in any form or format of this 2153document are permitted without further permission from the author. 2154 2155THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2156IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2157WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2158DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2159INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2160(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2161SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2162HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2163STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2164IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2165POSSIBILITY OF SUCH DAMAGE. 2166 2167Contact Warner Losh if you have any questions about your use of 2168this document. 2169 2170$FreeBSD: releng/10.1/UPDATING 276159 2014-12-23 22:56:01Z des $ 2171