UPDATING revision 274369
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 1920141118: 20 10.1-RELEASE. 21 2220140904: 23 The ofwfb driver, used to provide a graphics console on PowerPC when 24 using vt(4), no longer allows mmap() of all of physical memory. This 25 will prevent Xorg on PowerPC with some ATI graphics cards from 26 initializing properly unless x11-servers/xorg-server is updated to 27 1.12.4_8 or newer. 28 2920140831: 30 The libatf-c and libatf-c++ major versions were downgraded to 0 and 31 1 respectively to match the upstream numbers. They were out of 32 sync because, when they were originally added to FreeBSD, the 33 upstream versions were not respected. These libraries are private 34 and not yet built by default, so renumbering them should be a 35 non-issue. However, unclean source trees will yield broken test 36 programs once the operator executes "make delete-old-libs" after a 37 "make installworld". 38 39 Additionally, the atf-sh binary was made private by moving it into 40 /usr/libexec/. Already-built shell test programs will keep the 41 path to the old binary so they will break after "make delete-old" 42 is run. 43 44 If you are using WITH_TESTS=yes (not the default), wipe the object 45 tree and rebuild from scratch to prevent spurious test failures. 46 This is only needed once: the misnumbered libraries and misplaced 47 binaries have been added to OptionalObsoleteFiles.inc so they will 48 be removed during a clean upgrade. 49 5020140814: 51 The ixgbe tunables now match their sysctl counterparts, for example: 52 hw.ixgbe.enable_aim => hw.ix.enable_aim 53 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 54 5520140801: 56 The NFSv4.1 server committed by r269398 changes the internal 57 function call interfaces used between the NFS and krpc modules. 58 As such, __FreeBSD_version was bumped. 59 6020140729: 61 The default unbound configuration has been modified to address 62 issues with reverse lookups on networks that use private 63 address ranges. If you use the local_unbound service, run 64 "service local_unbound setup" as root to regenerate your 65 configuration, then "service local_unbound reload" to load the 66 new configuration. 67 6820140717: 69 It is no longer necessary to include the dwarf version in your DEBUG 70 options in your kernel config file. The bug that required it to be 71 placed in the config file has bene fixed. DEBUG should now just 72 contain -g. The build system will automatically update things 73 to do the right thing. 74 7520140715: 76 Several ABI breaking changes were merged to CTL and new iSCSI code. 77 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 78 iscsictl need to be rebuilt to work with a new kernel. 79 8020140708: 81 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 82 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 83 which differs from the behaviour controlled by this knob.) 84 8520140608: 86 On i386 and amd64 systems, the onifconsole flag is now set by default 87 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 88 as a login TTY if it is set in the bootloader as an active kernel 89 console. No changes in behavior should result otherwise. To revert to 90 the previous behavior, set ttyu0 to "off" in /etc/ttys. 91 9220140512: 93 Clang and llvm have been upgraded to 3.4.1 release. 94 9520140321: 96 Clang and llvm have been upgraded to 3.4 release. 97 9820140306: 99 If a Makefile in a tests/ directory was auto-generating a Kyuafile 100 instead of providing an explicit one, this would prevent such 101 Makefile from providing its own Kyuafile in the future during 102 NO_CLEAN builds. This has been fixed in the Makefiles but manual 103 intervention is needed to clean an objdir if you use NO_CLEAN: 104 # find /usr/obj -name Kyuafile | xargs rm -f 105 10620140303: 107 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 108 capability mode support. Please note that enabling the feature in 109 kernel is still highly recommended. 110 11120140227: 112 OpenSSH is now built with sandbox support, and will use sandbox as 113 the default privilege separation method. This requires Capsicum 114 capability mode support in kernel. 115 11620140216: 117 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 118 been deprecated and will not be part of FreeBSD 11.0 and later 119 releases. If you use this driver, please consider switching to 120 the nfe(4) driver instead. 121 12220140120: 123 10.0-RELEASE. 124 12520131216: 126 The behavior of gss_pseudo_random() for the krb5 mechanism 127 has changed, for applications requesting a longer random string 128 than produced by the underlying enctype's pseudo-random() function. 129 In particular, the random string produced from a session key of 130 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 131 be different at the 17th octet and later, after this change. 132 The counter used in the PRF+ construction is now encoded as a 133 big-endian integer in accordance with RFC 4402. 134 __FreeBSD_version is bumped to 1000701. 135 13620131108: 137 The WITHOUT_ATF build knob has been removed and its functionality 138 has been subsumed into the more generic WITHOUT_TESTS. If you were 139 using the former to disable the build of the ATF libraries, you 140 should change your settings to use the latter. 141 14220131031: 143 The default version of mtree is nmtree which is obtained from 144 NetBSD. The output is generally the same, but may vary 145 slightly. If you found you need identical output adding 146 "-F freebsd9" to the command line should do the trick. For the 147 time being, the old mtree is available as fmtree. 148 14920131014: 150 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 151 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 152 1.1.4_8 and verify bsdyml not linked in, before running "make 153 delete-old-libs": 154 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 155 or 156 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 157 15820131010: 159 The rc.d/jail script has been updated to support jail(8) 160 configuration file. The "jail_<jname>_*" rc.conf(5) variables 161 for per-jail configuration are automatically converted to 162 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 163 This is transparently backward compatible. See below about some 164 incompatibilities and rc.conf(5) manual page for more details. 165 166 These variables are now deprecated in favor of jail(8) configuration 167 file. One can use "rc.d/jail config <jname>" command to generate 168 a jail(8) configuration file in /var/run/jail.<jname>.conf without 169 running the jail(8) utility. The default pathname of the 170 configuration file is /etc/jail.conf and can be specified by 171 using $jail_conf or $jail_<jname>_conf variables. 172 173 Please note that jail_devfs_ruleset accepts an integer at 174 this moment. Please consider to rewrite the ruleset name 175 with an integer. 176 17720130930: 178 BIND has been removed from the base system. If all you need 179 is a local resolver, simply enable and start the local_unbound 180 service instead. Otherwise, several versions of BIND are 181 available in the ports tree. The dns/bind99 port is one example. 182 183 With this change, nslookup(1) and dig(1) are no longer in the base 184 system. Users should instead use host(1) and drill(1) which are 185 in the base system. Alternatively, nslookup and dig can 186 be obtained by installing the dns/bind-tools port. 187 18820130916: 189 With the addition of unbound(8), a new unbound user is now 190 required during installworld. "mergemaster -p" can be used to 191 add the user prior to installworld, as documented in the handbook. 192 19320130911: 194 OpenSSH is now built with DNSSEC support, and will by default 195 silently trust signed SSHFP records. This can be controlled with 196 the VerifyHostKeyDNS client configuration setting. DNSSEC support 197 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 198 19920130906: 200 The GNU Compiler Collection and C++ standard library (libstdc++) 201 are no longer built by default on platforms where clang is the system 202 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 203 options in src.conf. 204 20520130905: 206 The PROCDESC kernel option is now part of the GENERIC kernel 207 configuration and is required for the rwhod(8) to work. 208 If you are using custom kernel configuration, you should include 209 'options PROCDESC'. 210 21120130905: 212 The API and ABI related to the Capsicum framework was modified 213 in backward incompatible way. The userland libraries and programs 214 have to be recompiled to work with the new kernel. This includes the 215 following libraries and programs, but the whole buildworld is 216 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 217 kdump, procstat, rwho, rwhod, uniq. 218 21920130903: 220 AES-NI intrinsic support has been added to gcc. The AES-NI module 221 has been updated to use this support. A new gcc is required to build 222 the aesni module on both i386 and amd64. 223 22420130821: 225 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 226 Thus "device padlock_rng" and "device rdrand_rng" should be 227 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 228 22920130813: 230 WITH_ICONV has been split into two feature sets. WITH_ICONV now 231 enables just the iconv* functionality and is now on by default. 232 WITH_LIBICONV_COMPAT enables the libiconv api and link time 233 compatability. Set WITHOUT_ICONV to build the old way. 234 If you have been using WITH_ICONV before, you will very likely 235 need to turn on WITH_LIBICONV_COMPAT. 236 23720130806: 238 INVARIANTS option now enables DEBUG for code with OpenSolaris and 239 Illumos origin, including ZFS. If you have INVARIANTS in your 240 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 241 explicitly. 242 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 243 locks if WITNESS option was set. Because that generated a lot of 244 witness(9) reports and all of them were believed to be false 245 positives, this is no longer done. New option OPENSOLARIS_WITNESS 246 can be used to achieve the previous behavior. 247 24820130806: 249 Timer values in IPv6 data structures now use time_uptime instead 250 of time_second. Although this is not a user-visible functional 251 change, userland utilities which directly use them---ndp(8), 252 rtadvd(8), and rtsold(8) in the base system---need to be updated 253 to r253970 or later. 254 25520130802: 256 find -delete can now delete the pathnames given as arguments, 257 instead of only files found below them or if the pathname did 258 not contain any slashes. Formerly, the following error message 259 would result: 260 261 find: -delete: <path>: relative path potentially not safe 262 263 Deleting the pathnames given as arguments can be prevented 264 without error messages using -mindepth 1 or by changing 265 directory and passing "." as argument to find. This works in the 266 old as well as the new version of find. 267 26820130726: 269 Behavior of devfs rules path matching has been changed. 270 Pattern is now always matched against fully qualified devfs 271 path and slash characters must be explicitly matched by 272 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 273 subdirectories must be reviewed. 274 27520130716: 276 The default ARM ABI has changed to the ARM EABI. The old ABI is 277 incompatible with the ARM EABI and all programs and modules will 278 need to be rebuilt to work with a new kernel. 279 280 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 281 282 NOTE: Support for the old ABI will be removed in the future and 283 users are advised to upgrade. 284 28520130709: 286 pkg_install has been disconnected from the build if you really need it 287 you should add WITH_PKGTOOLS in your src.conf(5). 288 28920130709: 290 Most of network statistics structures were changed to be able 291 keep 64-bits counters. Thus all tools, that work with networking 292 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 293 29420130629: 295 Fix targets that run multiple make's to use && rather than ; 296 so that subsequent steps depend on success of previous. 297 298 NOTE: if building 'universe' with -j* on stable/8 or stable/9 299 it would be better to start the build using bmake, to avoid 300 overloading the machine. 301 30220130618: 303 Fix a bug that allowed a tracing process (e.g. gdb) to write 304 to a memory-mapped file in the traced process's address space 305 even if neither the traced process nor the tracing process had 306 write access to that file. 307 30820130615: 309 CVS has been removed from the base system. An exact copy 310 of the code is available from the devel/cvs port. 311 31220130613: 313 Some people report the following error after the switch to bmake: 314 315 make: illegal option -- J 316 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 317 ... 318 *** [buildworld] Error code 2 319 320 this likely due to an old instance of make in 321 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 322 which src/Makefile will use that blindly, if it exists, so if 323 you see the above error: 324 325 rm -rf `make -V MAKEPATH` 326 327 should resolve it. 328 32920130516: 330 Use bmake by default. 331 Whereas before one could choose to build with bmake via 332 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 333 make. The goal is to remove these knobs for 10-RELEASE. 334 335 It is worth noting that bmake (like gmake) treats the command 336 line as the unit of failure, rather than statements within the 337 command line. Thus '(cd some/where && dosomething)' is safer 338 than 'cd some/where; dosomething'. The '()' allows consistent 339 behavior in parallel build. 340 34120130429: 342 Fix a bug that allows NFS clients to issue READDIR on files. 343 34420130426: 345 The WITHOUT_IDEA option has been removed because 346 the IDEA patent expired. 347 34820130426: 349 The sysctl which controls TRIM support under ZFS has been renamed 350 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 351 enabled by default. 352 35320130425: 354 The mergemaster command now uses the default MAKEOBJDIRPREFIX 355 rather than creating it's own in the temporary directory in 356 order allow access to bootstrapped versions of tools such as 357 install and mtree. When upgrading from version of FreeBSD where 358 the install command does not support -l, you will need to 359 install a new mergemaster command if mergemaster -p is required. 360 This can be accomplished with the command (cd src/usr.sbin/mergemaster 361 && make install). 362 36320130404: 364 Legacy ATA stack, disabled and replaced by new CAM-based one since 365 FreeBSD 9.0, completely removed from the sources. Kernel modules 366 atadisk and atapi*, user-level tools atacontrol and burncd are 367 removed. Kernel option `options ATA_CAM` is now permanently enabled 368 and removed. 369 37020130319: 371 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 372 and socketpair(2). Software, in particular Kerberos, may 373 automatically detect and use these during building. The resulting 374 binaries will not work on older kernels. 375 37620130308: 377 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 378 information, see the respective 20130304 entry). 379 38020130304: 381 Recent commits to callout(9) changed the size of struct callout, 382 so the KBI is probably heavily disturbed. Also, some functions 383 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 384 by macros. Every kernel module using it won't load, so rebuild 385 is requested. 386 387 The ctl device has been re-enabled in GENERIC for i386 and amd64, 388 but does not initialize by default (because of the new CTL_DISABLE 389 option) to save memory. To re-enable it, remove the CTL_DISABLE 390 option from the kernel config file or set kern.cam.ctl.disable=0 391 in /boot/loader.conf. 392 39320130301: 394 The ctl device has been disabled in GENERIC for i386 and amd64. 395 This was done due to the extra memory being allocated at system 396 initialisation time by the ctl driver which was only used if 397 a CAM target device was created. This makes a FreeBSD system 398 unusable on 128MB or less of RAM. 399 40020130208: 401 A new compression method (lz4) has been merged to -HEAD. Please 402 refer to zpool-features(7) for more information. 403 404 Please refer to the "ZFS notes" section of this file for information 405 on upgrading boot ZFS pools. 406 40720130129: 408 A BSD-licensed patch(1) variant has been added and is installed 409 as bsdpatch, being the GNU version the default patch. 410 To inverse the logic and use the BSD-licensed one as default, 411 while having the GNU version installed as gnupatch, rebuild 412 and install world with the WITH_BSD_PATCH knob set. 413 41420130121: 415 Due to the use of the new -l option to install(1) during build 416 and install, you must take care not to directly set the INSTALL 417 make variable in your /etc/make.conf, /etc/src.conf, or on the 418 command line. If you wish to use the -C flag for all installs 419 you may be able to add INSTALL+=-C to /etc/make.conf or 420 /etc/src.conf. 421 42220130118: 423 The install(1) option -M has changed meaning and now takes an 424 argument that is a file or path to append logs to. In the 425 unlikely event that -M was the last option on the command line 426 and the command line contained at least two files and a target 427 directory the first file will have logs appended to it. The -M 428 option served little practical purpose in the last decade so its 429 use is expected to be extremely rare. 430 43120121223: 432 After switching to Clang as the default compiler some users of ZFS 433 on i386 systems started to experience stack overflow kernel panics. 434 Please consider using 'options KSTACK_PAGES=4' in such configurations. 435 43620121222: 437 GEOM_LABEL now mangles label names read from file system metadata. 438 Mangling affect labels containing spaces, non-printable characters, 439 '%' or '"'. Device names in /etc/fstab and other places may need to 440 be updated. 441 44220121217: 443 By default, only the 10 most recent kernel dumps will be saved. To 444 restore the previous behaviour (no limit on the number of kernel dumps 445 stored in the dump directory) add the following line to /etc/rc.conf: 446 447 savecore_flags="" 448 44920121201: 450 With the addition of auditdistd(8), a new auditdistd user is now 451 required during installworld. "mergemaster -p" can be used to 452 add the user prior to installworld, as documented in the handbook. 453 45420121117: 455 The sin6_scope_id member variable in struct sockaddr_in6 is now 456 filled by the kernel before passing the structure to the userland via 457 sysctl or routing socket. This means the KAME-specific embedded scope 458 id in sin6_addr.s6_addr[2] is always cleared in userland application. 459 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 460 __FreeBSD_version is bumped to 1000025. 461 46220121105: 463 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 464 This means that the world and kernel will be compiled with clang 465 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 466 and /usr/bin/cpp. To disable this behavior and revert to building 467 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 468 of current may need to bootstrap WITHOUT_CLANG first if the clang 469 build fails (its compatibility window doesn't extend to the 9 stable 470 branch point). 471 47220121102: 473 The IPFIREWALL_FORWARD kernel option has been removed. Its 474 functionality now turned on by default. 475 47620121023: 477 The ZERO_COPY_SOCKET kernel option has been removed and 478 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 479 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 480 mechanism which is not safe and may result in kernel crashes. 481 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 482 driver supports disposeable external page sized mbuf storage. 483 Proper replacements for both zero-copy mechanisms are under 484 consideration and will eventually lead to complete removal 485 of the two kernel options. 486 48720121023: 488 The IPv4 network stack has been converted to network byte 489 order. The following modules need to be recompiled together 490 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 491 pf(4), ipfw(4), ng_ipfw(4), stf(4). 492 49320121022: 494 Support for non-MPSAFE filesystems was removed from VFS. The 495 VFS_VERSION was bumped, all filesystem modules shall be 496 recompiled. 497 49820121018: 499 All the non-MPSAFE filesystems have been disconnected from 500 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 501 portalfs, smbfs, xfs. 502 50320121016: 504 The interface cloning API and ABI has changed. The following 505 modules need to be recompiled together with kernel: 506 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 507 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 508 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 509 51020121015: 511 The sdhci driver was split in two parts: sdhci (generic SD Host 512 Controller logic) and sdhci_pci (actual hardware driver). 513 No kernel config modifications are required, but if you 514 load sdhc as a module you must switch to sdhci_pci instead. 515 51620121014: 517 Import the FUSE kernel and userland support into base system. 518 51920121013: 520 The GNU sort(1) program has been removed since the BSD-licensed 521 sort(1) has been the default for quite some time and no serious 522 problems have been reported. The corresponding WITH_GNU_SORT 523 knob has also gone. 524 52520121006: 526 The pfil(9) API/ABI for AF_INET family has been changed. Packet 527 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 528 with new kernel. 529 53020121001: 531 The net80211(4) ABI has been changed to allow for improved driver 532 PS-POLL and power-save support. All wireless drivers need to be 533 recompiled to work with the new kernel. 534 53520120913: 536 The random(4) support for the VIA hardware random number 537 generator (`PADLOCK') is no longer enabled unconditionally. 538 Add the padlock_rng device in the custom kernel config if 539 needed. The GENERIC kernels on i386 and amd64 do include the 540 device, so the change only affects the custom kernel 541 configurations. 542 54320120908: 544 The pf(4) packet filter ABI has been changed. pfctl(8) and 545 snmp_pf module need to be recompiled to work with new kernel. 546 54720120828: 548 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 549 to -HEAD. Pools that have empty_bpobj in active state can not be 550 imported read-write with ZFS implementations that do not support 551 this feature. For more information read the zpool-features(5) 552 manual page. 553 55420120727: 555 The sparc64 ZFS loader has been changed to no longer try to auto- 556 detect ZFS providers based on diskN aliases but now requires these 557 to be explicitly listed in the OFW boot-device environment variable. 558 55920120712: 560 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 561 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 562 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 563 56420120712: 565 The following sysctls and tunables have been renamed for consistency 566 with other variables: 567 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 568 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 569 57020120628: 571 The sort utility has been replaced with BSD sort. For now, GNU sort 572 is also available as "gnusort" or the default can be set back to 573 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 574 installed as "bsdsort". 575 57620120611: 577 A new version of ZFS (pool version 5000) has been merged to -HEAD. 578 Starting with this version the old system of ZFS pool versioning 579 is superseded by "feature flags". This concept enables forward 580 compatibility against certain future changes in functionality of ZFS 581 pools. The first read-only compatible "feature flag" for ZFS pools 582 is named "com.delphix:async_destroy". For more information 583 read the new zpool-features(5) manual page. 584 Please refer to the "ZFS notes" section of this file for information 585 on upgrading boot ZFS pools. 586 58720120417: 588 The malloc(3) implementation embedded in libc now uses sources imported 589 as contrib/jemalloc. The most disruptive API change is to 590 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 591 delete it prior to installworld, and optionally re-create it using the 592 new format after rebooting. See malloc.conf(5) for details 593 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 594 NAMESPACE section). 595 59620120328: 597 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 598 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 599 now spelled mips. This is to aid compatibility with third-party 600 software that expects this naming scheme in uname(3). Little-endian 601 settings are unchanged. If you are updating a big-endian mips64 machine 602 from before this change, you may need to set MACHINE_ARCH=mips64 in 603 your environment before the new build system will recognize your machine. 604 60520120306: 606 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 607 platforms. 608 60920120229: 610 Now unix domain sockets behave "as expected" on nullfs(5). Previously 611 nullfs(5) did not pass through all behaviours to the underlying layer, 612 as a result if we bound to a socket on the lower layer we could connect 613 only to the lower path; if we bound to the upper layer we could connect 614 only to the upper path. The new behavior is one can connect to both the 615 lower and the upper paths regardless what layer path one binds to. 616 61720120211: 618 The getifaddrs upgrade path broken with 20111215 has been restored. 619 If you have upgraded in between 20111215 and 20120209 you need to 620 recompile libc again with your kernel. You still need to recompile 621 world to be able to configure CARP but this restriction already 622 comes from 20111215. 623 62420120114: 625 The set_rcvar() function has been removed from /etc/rc.subr. All 626 base and ports rc.d scripts have been updated, so if you have a 627 port installed with a script in /usr/local/etc/rc.d you can either 628 hand-edit the rcvar= line, or reinstall the port. 629 630 An easy way to handle the mass-update of /etc/rc.d: 631 rm /etc/rc.d/* && mergemaster -i 632 63320120109: 634 panic(9) now stops other CPUs in the SMP systems, disables interrupts 635 on the current CPU and prevents other threads from running. 636 This behavior can be reverted using the kern.stop_scheduler_on_panic 637 tunable/sysctl. 638 The new behavior can be incompatible with kern.sync_on_panic. 639 64020111215: 641 The carp(4) facility has been changed significantly. Configuration 642 of the CARP protocol via ifconfig(8) has changed, as well as format 643 of CARP events submitted to devd(8) has changed. See manual pages 644 for more information. The arpbalance feature of carp(4) is currently 645 not supported anymore. 646 647 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 648 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 649 need to be recompiled. 650 65120111122: 652 The acpi_wmi(4) status device /dev/wmistat has been renamed to 653 /dev/wmistat0. 654 65520111108: 656 The option VFS_ALLOW_NONMPSAFE option has been added in order to 657 explicitely support non-MPSAFE filesystems. 658 It is on by default for all supported platform at this present 659 time. 660 66120111101: 662 The broken amd(4) driver has been replaced with esp(4) in the amd64, 663 i386 and pc98 GENERIC kernel configuration files. 664 66520110930: 666 sysinstall has been removed 667 66820110923: 669 The stable/9 branch created in subversion. This corresponds to the 670 RELENG_9 branch in CVS. 671 67220110913: 673 This commit modifies vfs_register() so that it uses a hash 674 calculation to set vfc_typenum, which is enabled by default. 675 The first time a system is booted after this change, the 676 vfc_typenum values will change for all file systems. The 677 main effect of this is a change to the NFS server file handles 678 for file systems that use vfc_typenum in their fsid, such as ZFS. 679 It will, however, prevent vfc_typenum from changing when file 680 systems are loaded in a different order for subsequent reboots. 681 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 682 until you are ready to remount all NFS clients after a reboot. 683 68420110828: 685 Bump the shared library version numbers for libraries that 686 do not use symbol versioning, have changed the ABI compared 687 to stable/8 and which shared library version was not bumped. 688 Done as part of 9.0-RELEASE cycle. 689 69020110815: 691 During the merge of Capsicum features, the fget(9) KPI was modified. 692 This may require the rebuilding of out-of-tree device drivers -- 693 issues have been reported specifically with the nVidia device driver. 694 __FreeBSD_version is bumped to 900041. 695 696 Also, there is a period between 20110811 and 20110814 where the 697 special devices /dev/{stdin,stdout,stderr} did not work correctly. 698 Building world from a kernel during that window may not work. 699 70020110628: 701 The packet filter (pf) code has been updated to OpenBSD 4.5. 702 You need to update userland tools to be in sync with kernel. 703 This update breaks backward compatibility with earlier pfsync(4) 704 versions. Care must be taken when updating redundant firewall setups. 705 70620110608: 707 The following sysctls and tunables are retired on x86 platforms: 708 machdep.hlt_cpus 709 machdep.hlt_logical_cpus 710 The following sysctl is retired: 711 machdep.hyperthreading_allowed 712 The sysctls were supposed to provide a way to dynamically offline and 713 online selected CPUs on x86 platforms, but the implementation has not 714 been reliable especially with SCHED_ULE scheduler. 715 machdep.hyperthreading_allowed tunable is still available to ignore 716 hyperthreading CPUs at OS level. 717 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 718 where X is an APIC ID of a CPU. Be advised, though, that disabling 719 CPUs in non-uniform fashion will result in non-uniform topology and 720 may lead to sub-optimal system performance with SCHED_ULE, which is 721 a default scheduler. 722 72320110607: 724 cpumask_t type is retired and cpuset_t is used in order to describe 725 a mask of CPUs. 726 72720110531: 728 Changes to ifconfig(8) for dynamic address family detection mandate 729 that you are running a kernel of 20110525 or later. Make sure to 730 follow the update procedure to boot a new kernel before installing 731 world. 732 73320110513: 734 Support for sun4v architecture is officially dropped 735 73620110503: 737 Several KPI breaking changes have been committed to the mii(4) layer, 738 the PHY drivers and consequently some Ethernet drivers using mii(4). 739 This means that miibus.ko and the modules of the affected Ethernet 740 drivers need to be recompiled. 741 742 Note to kernel developers: Given that the OUI bit reversion problem 743 was fixed as part of these changes all mii(4) commits related to OUIs, 744 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 745 handling, no longer can be merged verbatim to stable/8 and previous 746 branches. 747 74820110430: 749 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 750 into their kernel configurations along with 'device pci'. 751 75220110427: 753 The default NFS client is now the new NFS client, so fstype "newnfs" 754 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 755 Although mounts via fstype "nfs" will usually work without userland 756 changes, it is recommended that the mount(8) and mount_nfs(8) 757 commands be rebuilt from sources and that a link to mount_nfs called 758 mount_oldnfs be created. The new client is compiled into the 759 kernel with "options NFSCL" and this is needed for diskless root 760 file systems. The GENERIC kernel configs have been changed to use 761 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 762 To use the regular/old client, you can "mount -t oldnfs ...". For 763 a diskless root file system, you must also include a line like: 764 765 vfs.root.mountfrom="oldnfs:" 766 767 in the boot/loader.conf on the root fs on the NFS server to make 768 a diskless root fs use the old client. 769 77020110424: 771 The GENERIC kernels for all architectures now default to the new 772 CAM-based ATA stack. It means that all legacy ATA drivers were 773 removed and replaced by respective CAM drivers. If you are using 774 ATA device names in /etc/fstab or other places, make sure to update 775 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 776 where 'Y's are the sequential numbers starting from zero for each type 777 in order of detection, unless configured otherwise with tunables, 778 see cam(4)). There will be symbolic links created in /dev/ to map 779 old adX devices to the respective adaY. They should provide basic 780 compatibility for file systems mounting in most cases, but they do 781 not support old user-level APIs and do not have respective providers 782 in GEOM. Consider using updated management tools with new device names. 783 784 It is possible to load devices ahci, ata, siis and mvs as modules, 785 but option ATA_CAM should remain in kernel configuration to make ata 786 module work as CAM driver supporting legacy ATA controllers. Device ata 787 still can be used in modular fashion (atacore + ...). Modules atadisk 788 and atapi* are not used and won't affect operation in ATA_CAM mode. 789 Note that to use CAM-based ATA kernel should include CAM devices 790 scbus, pass, da (or explicitly ada), cd and optionally others. All of 791 them are parts of the cam module. 792 793 ataraid(4) functionality is now supported by the RAID GEOM class. 794 To use it you can load geom_raid kernel module and use graid(8) tool 795 for management. Instead of /dev/arX device names, use /dev/raid/rX. 796 797 No kernel config options or code have been removed, so if a problem 798 arises, please report it and optionally revert to the old ATA stack. 799 In order to do it you can remove from the kernel config: 800 options ATA_CAM 801 device ahci 802 device mvs 803 device siis 804 , and instead add back: 805 device atadisk # ATA disk drives 806 device ataraid # ATA RAID drives 807 device atapicd # ATAPI CDROM drives 808 device atapifd # ATAPI floppy drives 809 device atapist # ATAPI tape drives 810 81120110423: 812 The default NFS server has been changed to the new server, which 813 was referred to as the experimental server. If you need to switch 814 back to the old NFS server, you must now put the "-o" option on 815 both the mountd and nfsd commands. This can be done using the 816 mountd_flags and nfs_server_flags rc.conf variables until an 817 update to the rc scripts is committed, which is coming soon. 818 81920110418: 820 The GNU Objective-C runtime library (libobjc), and other Objective-C 821 related components have been removed from the base system. If you 822 require an Objective-C library, please use one of the available ports. 823 82420110331: 825 ath(4) has been split into bus- and device- modules. if_ath contains 826 the HAL, the TX rate control and the network device code. if_ath_pci 827 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 828 contains the AHB glue. Users need to load both if_ath_pci and if_ath 829 in order to use ath on everything else. 830 831 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 832 need to load if_ath and if_ath_pci for ath(4) operation. 833 83420110314: 835 As part of the replacement of sysinstall, the process of building 836 release media has changed significantly. For details, please re-read 837 release(7), which has been updated to reflect the new build process. 838 83920110218: 840 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 841 is the last available version under GPLv2. It brings a number of new 842 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 843 4.1 and SSE 4.2), better support for powerpc64, a number of new 844 directives, and lots of other small improvements. See the ChangeLog 845 file in contrib/binutils for the full details. 846 84720110218: 848 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 849 compliant, and will now use half of hash for authentication. 850 This will break interoperability with all stacks (including all 851 actual FreeBSD versions) who implement 852 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 853 authentication). 854 The only workaround with such peers is to use another HMAC 855 algorithm for IPsec ("phase 2") authentication. 856 85720110207: 858 Remove the uio_yield prototype and symbol. This function has 859 been misnamed since it was introduced and should not be 860 globally exposed with this name. The equivalent functionality 861 is now available using kern_yield(curthread->td_user_pri). 862 The function remains undocumented. 863 86420110112: 865 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 866 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 867 for scalar sysctls is defined but disabled. Code that needs 868 UQUAD to pass the type checking that must compile on older 869 systems where the define is not present can check against 870 __FreeBSD_version >= 900030. 871 872 The system dialog(1) has been replaced with a new version previously 873 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 874 with the previous version, but the libdialog associated with it has 875 a largely incompatible API. As such, the original version of libdialog 876 will be kept temporarily as libodialog, until its base system consumers 877 are replaced or updated. Bump __FreeBSD_version to 900030. 878 87920110103: 880 If you are trying to run make universe on a -stable system, and you get 881 the following warning: 882 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 883 unknown. config(8) likely too old." 884 or something similar to it, then you must upgrade your -stable system 885 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 886 stable/8) or build the config from the latest stable/8 branch and 887 install it on your system. 888 889 Prior to this date, building a current universe on 8-stable system from 890 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 891 error in the first kernel build phase. A new config on those old 892 systems will fix that problem for older versions of -current. 893 89420101228: 895 The TCP stack has been modified to allow Khelp modules to interact with 896 it via helper hook points and store per-connection data in the TCP 897 control block. Bump __FreeBSD_version to 900029. User space tools that 898 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 899 be recompiled. 900 90120101114: 902 Generic IEEE 802.3 annex 31B full duplex flow control support has been 903 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 904 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 905 to take advantage of it instead of using custom implementations. This 906 means that these drivers now no longer unconditionally advertise 907 support for flow control but only do so if flow control is a selected 908 media option. This was implemented in the generic support that way in 909 order to allow flow control to be switched on and off via ifconfig(8) 910 with the PHY specific default to typically off in order to protect 911 from unwanted effects. Consequently, if you used flow control with 912 one of the above mentioned drivers you now need to explicitly enable 913 it, for example via: 914 ifconfig bge0 media auto mediaopt flowcontrol 915 916 Along with the above mentioned changes generic support for setting 917 1000baseT master mode also has been added and brgphy(4), ciphy(4), 918 e1000phy(4) as well as ip1000phy(4) have been converted to take 919 advantage of it. This means that these drivers now no longer take the 920 link0 parameter for selecting master mode but the master media option 921 has to be used instead, for example like in the following: 922 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 923 924 Selection of master mode now is also available with all other PHY 925 drivers supporting 1000baseT. 926 92720101111: 928 The TCP stack has received a significant update to add support for 929 modularised congestion control and generally improve the clarity of 930 congestion control decisions. Bump __FreeBSD_version to 900025. User 931 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 932 sockstat) need to be recompiled. 933 93420101002: 935 The man(1) utility has been replaced by a new version that no longer 936 uses /etc/manpath.config. Please consult man.conf(5) for how to 937 migrate local entries to the new format. 938 93920100928: 940 The copyright strings printed by login(1) and sshd(8) at the time of a 941 new connection have been removed to follow other operating systems and 942 upstream sshd. 943 94420100915: 945 A workaround for a fixed ld bug has been removed in kernel code, 946 so make sure that your system ld is built from sources after 947 revision 210245 from 2010-07-19 (r211583 if building head kernel 948 on stable/8, r211584 for stable/7; both from 2010-08-21). 949 A symptom of incorrect ld version is different addresses for 950 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 951 95220100913: 953 The $ipv6_prefer variable in rc.conf(5) has been split into 954 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 955 956 The $ip6addrctl_policy is a variable to choose a pre-defined 957 address selection policy set by ip6addrctl(8). A value 958 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 959 default is "AUTO". 960 961 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 962 flag (see an entry of 20090926) is set on an interface with no 963 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 964 security reason. If you want IPv6 link-local address on all 965 interfaces by default, set this to "YES". 966 967 The old ipv6_prefer="YES" is equivalent to 968 ipv6_activate_all_interfaces="YES" and 969 ip6addrctl_policy="ipv6_prefer". 970 97120100913: 972 DTrace has grown support for userland tracing. Due to this, DTrace is 973 now i386 and amd64 only. 974 dtruss(1) is now installed by default on those systems and a new 975 kernel module is needed for userland tracing: fasttrap. 976 No changes to your kernel config file are necessary to enable 977 userland tracing, but you might consider adding 'STRIP=' and 978 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 979 to have informative userland stack traces in DTrace (ustack). 980 98120100725: 982 The acpi_aiboost(4) driver has been removed in favor of the new 983 aibs(4) driver. You should update your kernel configuration file. 984 98520100722: 986 BSD grep has been imported to the base system and it is built by 987 default. It is completely BSD licensed, highly GNU-compatible, uses 988 less memory than its GNU counterpart and has a small codebase. 989 However, it is slower than its GNU counterpart, which is mostly 990 noticeable for larger searches, for smaller ones it is measurable 991 but not significant. The reason is complex, the most important factor 992 is that we lack a modern and efficient regex library and GNU 993 overcomes this by optimizing the searches internally. Future work 994 on improving the regex performance is planned, for the meantime, 995 users that need better performance, can build GNU grep instead by 996 setting the WITH_GNU_GREP knob. 997 99820100713: 999 Due to the import of powerpc64 support, all existing powerpc kernel 1000 configuration files must be updated with a machine directive like this: 1001 machine powerpc powerpc 1002 1003 In addition, an updated config(8) is required to build powerpc kernels 1004 after this change. 1005 100620100713: 1007 A new version of ZFS (version 15) has been merged to -HEAD. 1008 This version uses a python library for the following subcommands: 1009 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1010 For full functionality of these commands the following port must 1011 be installed: sysutils/py-zfs 1012 101320100429: 1014 'vm_page's are now hashed by physical address to an array of mutexes. 1015 Currently this is only used to serialize access to hold_count. Over 1016 time the page queue mutex will be peeled away. This changes the size 1017 of pmap on every architecture. And requires all callers of vm_page_hold 1018 and vm_page_unhold to be updated. 1019 102020100402: 1021 WITH_CTF can now be specified in src.conf (not recommended, there 1022 are some problems with static executables), make.conf (would also 1023 affect ports which do not use GNU make and do not override the 1024 compile targets) or in the kernel config (via "makeoptions 1025 WITH_CTF=yes"). 1026 When WITH_CTF was specified there before this was silently ignored, 1027 so make sure that WITH_CTF is not used in places which could lead 1028 to unwanted behavior. 1029 103020100311: 1031 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1032 to allow 32-bit compatibility on non-x86 platforms. All kernel 1033 configurations on amd64 and ia64 platforms using these options must 1034 be modified accordingly. 1035 103620100113: 1037 The utmp user accounting database has been replaced with utmpx, 1038 the user accounting interface standardized by POSIX. 1039 Unfortunately the semantics of utmp and utmpx don't match, 1040 making it practically impossible to support both interfaces. 1041 The user accounting database is used by tools like finger(1), 1042 last(1), talk(1), w(1) and ac(8). 1043 1044 All applications in the base system use utmpx. This means only 1045 local binaries (e.g. from the ports tree) may still use these 1046 utmp database files. These applications must be rebuilt to make 1047 use of utmpx. 1048 1049 After the system has been upgraded, it is safe to remove the old 1050 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1051 assuming their contents is of no importance anymore. Old wtmp 1052 databases can only be used by last(1) and ac(8) after they have 1053 been converted to the new format using wtmpcvt(1). 1054 105520100108: 1056 Introduce the kernel thread "deadlock resolver" (which can be enabled 1057 via the DEADLKRES option, see NOTES for more details) and the 1058 sleepq_type() function for sleepqueues. 1059 106020091202: 1061 The rc.firewall and rc.firewall6 were unified, and 1062 rc.firewall6 and rc.d/ip6fw were removed. 1063 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1064 variables are obsoleted. Instead, the following new rc 1065 variables are added to rc.d/ipfw: 1066 1067 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1068 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1069 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1070 1071 The meanings correspond to the relevant IPv4 variables. 1072 107320091125: 1074 8.0-RELEASE. 1075 107620091113: 1077 The default terminal emulation for syscons(4) has been changed 1078 from cons25 to xterm on all platforms except pc98. This means 1079 that the /etc/ttys file needs to be updated to ensure correct 1080 operation of applications on the console. 1081 1082 The terminal emulation style can be toggled per window by using 1083 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1084 options can be used to change the compile-time default back to 1085 cons25. 1086 1087 To prevent graphical artifacts, make sure the TERM environment 1088 variable is set to match the terminal emulation that is being 1089 performed by syscons(4). 1090 109120091109: 1092 The layout of the structure ieee80211req_scan_result has changed. 1093 Applications that require wireless scan results (e.g. ifconfig(8)) 1094 from net80211 need to be recompiled. 1095 1096 Applications such as wpa_supplicant(8) may require a full world 1097 build without using NO_CLEAN in order to get synchronized with the 1098 new structure. 1099 110020091025: 1101 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1102 There's one kernel module for each firmware. Adding "device iwnfw" 1103 to the kernel configuration file means including all three firmware 1104 images inside the kernel. If you want to include just the one for 1105 your wireless card, use the devices iwn4965fw, iwn5000fw or 1106 iwn5150fw. 1107 110820090926: 1109 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1110 into rc.d/netif. The changes are the following: 1111 1112 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1113 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1114 Note that both variables need the "inet6" keyword at the head. 1115 1116 Do not set $ipv6_network_interfaces manually if you do not 1117 understand what you are doing. It is not needed in most cases. 1118 1119 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1120 they are obsolete. 1121 1122 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1123 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1124 1125 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1126 all configured interfaces have "inet6 accept_rtadv" in the 1127 $ifconfig_IF_ipv6. These are for backward compatibility. 1128 1129 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1130 functionality of interfaces with no corresponding 1131 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1132 and the default address selection policy of ip6addrctl(8) 1133 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1134 Note that if you want to configure IPv6 functionality on the 1135 disabled interfaces after boot, first you need to clear the flag by 1136 using ifconfig(8) like: 1137 1138 ifconfig em0 inet6 -ifdisabled 1139 1140 If YES, the default address selection policy is set as 1141 IPv6-preferred. 1142 1143 The default value of $ipv6_prefer is NO. 1144 1145 4. If your system need to receive Router Advertisement messages, 1146 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1147 scripts automatically invoke rtsol(8) when the interface becomes 1148 UP. The Router Advertisement messages are used for SLAAC 1149 (State-Less Address AutoConfiguration). 1150 115120090922: 1152 802.11s D3.03 support was committed. This is incompatible with the 1153 previous code, which was based on D3.0. 1154 115520090912: 1156 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1157 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1158 control whether accepting Router Advertisement messages or not. 1159 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1160 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1161 The ifconfig(8) utility now supports these flags. 1162 116320090910: 1164 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1165 mount(8) and -a option for df(1) to see them. 1166 116720090825: 1168 The old tunable hw.bus.devctl_disable has been superseded by 1169 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1170 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1171 is 1000. 1172 117320090813: 1174 Remove the option STOP_NMI. The default action is now to use NMI only 1175 for KDB via the newly introduced function stop_cpus_hard() and 1176 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1177 117820090803: 1179 The stable/8 branch created in subversion. This corresponds to the 1180 RELENG_8 branch in CVS. 1181 118220090719: 1183 Bump the shared library version numbers for all libraries that do not 1184 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1185 __FreeBSD_version to 800105. 1186 118720090714: 1188 Due to changes in the implementation of virtual network stack support, 1189 all network-related kernel modules must be recompiled. As this change 1190 breaks the ABI, bump __FreeBSD_version to 800104. 1191 119220090713: 1193 The TOE interface to the TCP syncache has been modified to remove 1194 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1195 The cxgb driver is the only TOE consumer affected by this change, and 1196 needs to be recompiled along with the kernel. As this change breaks 1197 the ABI, bump __FreeBSD_version to 800103. 1198 119920090712: 1200 Padding has been added to struct tcpcb, sackhint and tcpstat in 1201 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1202 maintaining the ABI. However, this change breaks the ABI, so bump 1203 __FreeBSD_version to 800102. User space tools that rely on the size of 1204 any of these structs (e.g. sockstat) need to be recompiled. 1205 120620090630: 1207 The NFS_LEGACYRPC option has been removed along with the old kernel 1208 RPC implementation that this option selected. Kernel configurations 1209 may need to be adjusted. 1210 121120090629: 1212 The network interface device nodes at /dev/net/<interface> have been 1213 removed. All ioctl operations can be performed the normal way using 1214 routing sockets. The kqueue functionality can generally be replaced 1215 with routing sockets. 1216 121720090628: 1218 The documentation from the FreeBSD Documentation Project (Handbook, 1219 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1220 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1221 122220090624: 1223 The ABI of various structures related to the SYSV IPC API have been 1224 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1225 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1226 800100. 1227 122820090622: 1229 Layout of struct vnet has changed as routing related variables were 1230 moved to their own Vimage module. Modules need to be recompiled. Bump 1231 __FreeBSD_version to 800099. 1232 123320090619: 1234 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1235 respectively. As long as no more than 16 groups per process are used, 1236 no changes should be visible. When more than 16 groups are used, old 1237 binaries may fail if they call getgroups() or getgrouplist() with 1238 statically sized storage. Recompiling will work around this, but 1239 applications should be modified to use dynamically allocated storage 1240 for group arrays as POSIX.1-2008 does not cap an implementation's 1241 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1242 1243 NFS and portalfs mounts may also be affected as the list of groups is 1244 truncated to 16. Users of NFS who use more than 16 groups, should 1245 take care that negative group permissions are not used on the exported 1246 file systems as they will not be reliable unless a GSSAPI based 1247 authentication method is used. 1248 124920090616: 1250 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1251 option compiles in the support for adaptive spinning for lockmgrs 1252 which want to enable it. The lockinit() function now accepts the flag 1253 LK_ADAPTIVE in order to make the lock object subject to adaptive 1254 spinning when both held in write and read mode. 1255 125620090613: 1257 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1258 changed. User applications that use this ioctl need to be rebuilt. 1259 126020090611: 1261 The layout of struct thread has changed. Kernel and modules need to 1262 be rebuilt. 1263 126420090608: 1265 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1266 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1267 126820090602: 1269 window(1) has been removed from the base system. It can now be 1270 installed from ports. The port is called misc/window. 1271 127220090601: 1273 The way we are storing and accessing `routing table' entries has 1274 changed. Programs reading the FIB, like netstat, need to be 1275 re-compiled. 1276 127720090601: 1278 A new netisr implementation has been added for FreeBSD 8. Network 1279 file system modules, such as igmp, ipdivert, and others, should be 1280 rebuilt. 1281 Bump __FreeBSD_version to 800096. 1282 128320090530: 1284 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1285 more valid. 1286 128720090530: 1288 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1289 Bump __FreeBSD_version to 800094. 1290 129120090529: 1292 Add mnt_xflag field to 'struct mount'. File system modules need to be 1293 rebuilt. 1294 Bump __FreeBSD_version to 800093. 1295 129620090528: 1297 The compiling option ADAPTIVE_SX has been retired while it has been 1298 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1299 The KPI for sx_init_flags() changes as accepting flags: 1300 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1301 been introduced in order to handle the reversed logic. 1302 Bump __FreeBSD_version to 800092. 1303 130420090527: 1305 Add support for hierarchical jails. Remove global securelevel. 1306 Bump __FreeBSD_version to 800091. 1307 130820090523: 1309 The layout of struct vnet_net has changed, therefore modules 1310 need to be rebuilt. 1311 Bump __FreeBSD_version to 800090. 1312 131320090523: 1314 The newly imported zic(8) produces a new format in the output. Please 1315 run tzsetup(8) to install the newly created data to /etc/localtime. 1316 131720090520: 1318 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1319 hw.usb.* and is now consistent again with previous releases. 1320 132120090520: 1322 802.11 monitor mode support was revised and driver api's were changed. 1323 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1324 of DLT_IEEE802_11. No user-visible data structures were changed but 1325 applications that use DLT_IEEE802_11 may require changes. 1326 Bump __FreeBSD_version to 800088. 1327 132820090430: 1329 The layout of the following structs has changed: sysctl_oid, 1330 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1331 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1332 panics may be experienced. World rebuild is required for 1333 correctly checking networking state from userland. 1334 Bump __FreeBSD_version to 800085. 1335 133620090429: 1337 MLDv2 and Source-Specific Multicast (SSM) have been merged 1338 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1339 The implementation of SSM within FreeBSD's IPv6 stack closely 1340 follows the IPv4 implementation. 1341 1342 For kernel developers: 1343 1344 * The most important changes are that the ip6_output() and 1345 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1346 and this lock has been downgraded to a non-recursive mutex. 1347 1348 * As with the changes to the IPv4 stack to support SSM, filtering 1349 of inbound multicast traffic must now be performed by transport 1350 protocols within the IPv6 stack. This does not apply to TCP and 1351 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1352 1353 * The KPIs used by IPv6 multicast are similar to those used by 1354 the IPv4 stack, with the following differences: 1355 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1356 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1357 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1358 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1359 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1360 for MLDv1 have an additional 'timer' argument which is used to 1361 jitter the initial membership report for the solicited-node 1362 multicast membership on-link. 1363 * This is not strictly needed for MLDv2, which already jitters 1364 its report transmissions. However, the 'timer' argument is 1365 preserved in case MLDv1 is active on the interface. 1366 1367 * The KAME linked-list based IPv6 membership implementation has 1368 been refactored to use a vector similar to that used by the IPv4 1369 stack. 1370 Code which maintains a list of its own multicast memberships 1371 internally, e.g. carp, has been updated to reflect the new 1372 semantics. 1373 1374 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1375 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1376 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1377 implementation constraint which needs to be addressed in HEAD. 1378 1379 For application developers: 1380 1381 * The changes are broadly similar to those made for the IPv4 1382 stack. 1383 1384 * The use of IPv4 and IPv6 multicast socket options on the same 1385 socket, using mapped addresses, HAS NOT been tested or supported. 1386 1387 * There are a number of issues with the implementation of various 1388 IPv6 multicast APIs which need to be resolved in the API surface 1389 before the implementation is fully compatible with KAME userland 1390 use, and these are mostly to do with interface index treatment. 1391 1392 * The literature available discusses the use of either the delta / ASM 1393 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1394 using setsourcefilter(3)/getsourcefilter(3). For more information 1395 please refer to RFC 3768, 'Socket Interface Extensions for 1396 Multicast Source Filters'. 1397 1398 * Applications which use the published RFC 3678 APIs should be fine. 1399 1400 For systems administrators: 1401 1402 * The mtest(8) utility has been refactored to support IPv6, in 1403 addition to IPv4. Interface addresses are no longer accepted 1404 as arguments, their names must be used instead. The utility 1405 will map the interface name to its first IPv4 address as 1406 returned by getifaddrs(3). 1407 1408 * The ifmcstat(8) utility has also been updated to print the MLDv2 1409 endpoint state and source filter lists via sysctl(3). 1410 1411 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1412 loopback of IPv6 multicast datagrams by default; it defaults to 1 1413 to preserve the existing behaviour. Disabling multicast loopback is 1414 recommended for optimal system performance. 1415 1416 * The IPv6 MROUTING code has been changed to examine this sysctl 1417 instead of attempting to perform a group lookup before looping 1418 back forwarded datagrams. 1419 1420 Bump __FreeBSD_version to 800084. 1421 142220090422: 1423 Implement low-level Bluetooth HCI API. 1424 Bump __FreeBSD_version to 800083. 1425 142620090419: 1427 The layout of struct malloc_type, used by modules to register new 1428 memory allocation types, has changed. Most modules will need to 1429 be rebuilt or panics may be experienced. 1430 Bump __FreeBSD_version to 800081. 1431 143220090415: 1433 Anticipate overflowing inp_flags - add inp_flags2. 1434 This changes most offsets in inpcb, so checking v4 connection 1435 state will require a world rebuild. 1436 Bump __FreeBSD_version to 800080. 1437 143820090415: 1439 Add an llentry to struct route and struct route_in6. Modules 1440 embedding a struct route will need to be recompiled. 1441 Bump __FreeBSD_version to 800079. 1442 144320090414: 1444 The size of rt_metrics_lite and by extension rtentry has changed. 1445 Networking administration apps will need to be recompiled. 1446 The route command now supports show as an alias for get, weighting 1447 of routes, sticky and nostick flags to alter the behavior of stateful 1448 load balancing. 1449 Bump __FreeBSD_version to 800078. 1450 145120090408: 1452 Do not use Giant for kbdmux(4) locking. This is wrong and 1453 apparently causing more problems than it solves. This will 1454 re-open the issue where interrupt handlers may race with 1455 kbdmux(4) in polling mode. Typical symptoms include (but 1456 not limited to) duplicated and/or missing characters when 1457 low level console functions (such as gets) are used while 1458 interrupts are enabled (for example geli password prompt, 1459 mountroot prompt etc.). Disabling kbdmux(4) may help. 1460 146120090407: 1462 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1463 kernel modules referencing any of the above need to be recompiled. 1464 Bump __FreeBSD_version to 800075. 1465 146620090320: 1467 GEOM_PART has become the default partition slicer for storage devices, 1468 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1469 introduces some changes: 1470 1471 MSDOS/EBR: the devices created from MSDOS extended partition entries 1472 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1473 to devices with offset-based names. fstabs may need to be modified. 1474 1475 BSD: the "geometry does not match label" warning is harmless in most 1476 cases but it points to problems in file system misalignment with 1477 disk geometry. The "c" partition is now implicit, covers the whole 1478 top-level drive and cannot be (mis)used by users. 1479 1480 General: Kernel dumps are now not allowed to be written to devices 1481 whose partition types indicate they are meant to be used for file 1482 systems (or, in case of MSDOS partitions, as something else than 1483 the "386BSD" type). 1484 1485 Most of these changes date approximately from 200812. 1486 148720090319: 1488 The uscanner(4) driver has been removed from the kernel. This follows 1489 Linux removing theirs in 2.6 and making libusb the default interface 1490 (supported by sane). 1491 149220090319: 1493 The multicast forwarding code has been cleaned up. netstat(1) 1494 only relies on KVM now for printing bandwidth upcall meters. 1495 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1496 ip6_mroute_mod respectively. The config(5) options for statically 1497 compiling this code remain the same, i.e. 'options MROUTING'. 1498 149920090315: 1500 Support for the IFF_NEEDSGIANT network interface flag has been 1501 removed, which means that non-MPSAFE network device drivers are no 1502 longer supported. In particular, if_ar, if_sr, and network device 1503 drivers from the old (legacy) USB stack can no longer be built or 1504 used. 1505 150620090313: 1507 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1508 a bunch of new language catalog files have also been added. 1509 This means that some common libc messages are now localized and 1510 they depend on the LC_MESSAGES environmental variable. 1511 151220090313: 1513 The k8temp(4) driver has been renamed to amdtemp(4) since 1514 support for Family 10 and Family 11 CPU families was added. 1515 151620090309: 1517 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1518 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1519 1520 For kernel developers, the most important changes are that the 1521 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1522 and this lock has been downgraded to a non-recursive mutex. 1523 1524 Transport protocols (UDP, Raw IP) are now responsible for filtering 1525 inbound multicast traffic according to group membership and source 1526 filters. The imo_multicast_filter() KPI exists for this purpose. 1527 Transports which do not use multicast (SCTP, TCP) already reject 1528 multicast by default. Forwarding and receive performance may improve 1529 as a mutex acquisition is no longer needed in the ip_input() 1530 low-level input path. in_addmulti() and in_delmulti() are shimmed 1531 to new KPIs which exist to support SSM in-kernel. 1532 1533 For application developers, it is recommended that loopback of 1534 multicast datagrams be disabled for best performance, as this 1535 will still cause the lock to be taken for each looped-back 1536 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1537 be tuned to 0 to disable loopback by default; it defaults to 1 1538 to preserve the existing behaviour. 1539 1540 For systems administrators, to obtain best performance with 1541 multicast reception and multiple groups, it is always recommended 1542 that a card with a suitably precise hash filter is used. Hash 1543 collisions will still result in the lock being taken within the 1544 transport protocol input path to check group membership. 1545 1546 If deploying FreeBSD in an environment with IGMP snooping switches, 1547 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1548 enabled; this forces 224.0.0.0/24 group membership to be announced 1549 via IGMP. 1550 1551 The size of 'struct igmpstat' has changed; netstat needs to be 1552 recompiled to reflect this. 1553 Bump __FreeBSD_version to 800070. 1554 155520090309: 1556 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1557 updated to use it. This requires a buildworld/installworld in order to 1558 update the library and dependencies (usbconfig, etc). Its advisable to 1559 rebuild all ports which uses libusb. More specific directions are given 1560 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1561 libusb are no longer required and can be removed. 1562 156320090302: 1564 A workaround is committed to allow the creation of System V shared 1565 memory segment of size > 2 GB on the 64-bit architectures. 1566 Due to a limitation of the existing ABI, the shm_segsz member 1567 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1568 wrong for large segments. Note that limits must be explicitly 1569 raised to allow such segments to be created. 1570 157120090301: 1572 The layout of struct ifnet has changed, requiring a rebuild of all 1573 network device driver modules. 1574 157520090227: 1576 The /dev handling for the new USB stack has changed, a 1577 buildworld/installworld is required for libusb20. 1578 157920090223: 1580 The new USB2 stack has now been permanently moved in and all kernel and 1581 module names reverted to their previous values (eg, usb, ehci, ohci, 1582 ums, ...). The old usb stack can be compiled in by prefixing the name 1583 with the letter 'o', the old usb modules have been removed. 1584 Updating entry 20090216 for xorg and 20090215 for libmap may still 1585 apply. 1586 158720090217: 1588 The rc.conf(5) option if_up_delay has been renamed to 1589 defaultroute_delay to better reflect its purpose. If you have 1590 customized this setting in /etc/rc.conf you need to update it to 1591 use the new name. 1592 159320090216: 1594 xorg 7.4 wants to configure its input devices via hald which does not 1595 yet work with USB2. If the keyboard/mouse does not work in xorg then 1596 add 1597 Option "AllowEmptyInput" "off" 1598 to your ServerLayout section. This will cause X to use the configured 1599 kbd and mouse sections from your xorg.conf. 1600 160120090215: 1602 The GENERIC kernels for all architectures now default to the new USB2 1603 stack. No kernel config options or code have been removed so if a 1604 problem arises please report it and optionally revert to the old USB 1605 stack. If you are loading USB kernel modules or have a custom kernel 1606 that includes GENERIC then ensure that usb names are also changed over, 1607 eg uftdi -> usb2_serial_ftdi. 1608 1609 Older programs linked against the ports libusb 0.1 need to be 1610 redirected to the new stack's libusb20. /etc/libmap.conf can 1611 be used for this: 1612 # Map old usb library to new one for usb2 stack 1613 libusb-0.1.so.8 libusb20.so.1 1614 161520090209: 1616 All USB ethernet devices now attach as interfaces under the name ueN 1617 (eg. ue0). This is to provide a predictable name as vendors often 1618 change usb chipsets in a product without notice. 1619 162020090203: 1621 The ichsmb(4) driver has been changed to require SMBus slave 1622 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1623 All of the other SMBus controller drivers require left-justified 1624 slave addresses, so this change makes all the drivers provide the 1625 same interface. 1626 162720090201: 1628 INET6 statistics (struct ip6stat) was updated. 1629 netstat(1) needs to be recompiled. 1630 163120090119: 1632 NTFS has been removed from GENERIC kernel on amd64 to match 1633 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1634 will load ntfs.ko module automatically when NTFS support is 1635 actually needed, unless ntfs.ko is not installed or security 1636 level prohibits loading kernel modules. If either is the case, 1637 "options NTFS" has to be added into kernel config. 1638 163920090115: 1640 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1641 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1642 800061. User space tools that rely on the size of struct tcpcb in 1643 tcp_var.h (e.g. sockstat) need to be recompiled. 1644 164520081225: 1646 ng_tty(4) module updated to match the new TTY subsystem. 1647 Due to API change, user-level applications must be updated. 1648 New API support added to mpd5 CVS and expected to be present 1649 in next mpd5.3 release. 1650 165120081219: 1652 With __FreeBSD_version 800060 the makefs tool is part of 1653 the base system (it was a port). 1654 165520081216: 1656 The afdata and ifnet locks have been changed from mutexes to 1657 rwlocks, network modules will need to be re-compiled. 1658 165920081214: 1660 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1661 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1662 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1663 architecture and 40 bytes on 64-bit architecture. The userland 1664 applications "arp" and "ndp" have been updated accordingly. 1665 The output from "netstat -r" shows only routing entries and 1666 none of the L2 information. 1667 166820081130: 1669 __FreeBSD_version 800057 marks the switchover from the 1670 binary ath hal to source code. Users must add the line: 1671 1672 options AH_SUPPORT_AR5416 1673 1674 to their kernel config files when specifying: 1675 1676 device ath_hal 1677 1678 The ath_hal module no longer exists; the code is now compiled 1679 together with the driver in the ath module. It is now 1680 possible to tailor chip support (i.e. reduce the set of chips 1681 and thereby the code size); consult ath_hal(4) for details. 1682 168320081121: 1684 __FreeBSD_version 800054 adds memory barriers to 1685 <machine/atomic.h>, new interfaces to ifnet to facilitate 1686 multiple hardware transmit queues for cards that support 1687 them, and a lock-less ring-buffer implementation to 1688 enable drivers to more efficiently manage queueing of 1689 packets. 1690 169120081117: 1692 A new version of ZFS (version 13) has been merged to -HEAD. 1693 This version has zpool attribute "listsnapshots" off by 1694 default, which means "zfs list" does not show snapshots, 1695 and is the same as Solaris behavior. 1696 169720081028: 1698 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1699 170020081009: 1701 The uhci, ohci, ehci and slhci USB Host controller drivers have 1702 been put into separate modules. If you load the usb module 1703 separately through loader.conf you will need to load the 1704 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1705 controller add the following to loader.conf: 1706 1707 uhci_load="YES" 1708 ehci_load="YES" 1709 171020081009: 1711 The ABI used by the PMC toolset has changed. Please keep 1712 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1713 sync. 1714 171520081009: 1716 atapci kernel module now includes only generic PCI ATA 1717 driver. AHCI driver moved to ataahci kernel module. 1718 All vendor-specific code moved into separate kernel modules: 1719 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1720 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1721 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1722 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1723 172420080820: 1725 The TTY subsystem of the kernel has been replaced by a new 1726 implementation, which provides better scalability and an 1727 improved driver model. Most common drivers have been migrated to 1728 the new TTY subsystem, while others have not. The following 1729 drivers have not yet been ported to the new TTY layer: 1730 1731 PCI/ISA: 1732 cy, digi, rc, rp, sio 1733 1734 USB: 1735 ubser, ucycom 1736 1737 Line disciplines: 1738 ng_h4, ng_tty, ppp, sl, snp 1739 1740 Adding these drivers to your kernel configuration file shall 1741 cause compilation to fail. 1742 174320080818: 1744 ntpd has been upgraded to 4.2.4p5. 1745 174620080801: 1747 OpenSSH has been upgraded to 5.1p1. 1748 1749 For many years, FreeBSD's version of OpenSSH preferred DSA 1750 over RSA for host and user authentication keys. With this 1751 upgrade, we've switched to the vendor's default of RSA over 1752 DSA. This may cause upgraded clients to warn about unknown 1753 host keys even for previously known hosts. Users should 1754 follow the usual procedure for verifying host keys before 1755 accepting the RSA key. 1756 1757 This can be circumvented by setting the "HostKeyAlgorithms" 1758 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1759 command line. 1760 1761 Please note that the sequence of keys offered for 1762 authentication has been changed as well. You may want to 1763 specify IdentityFile in a different order to revert this 1764 behavior. 1765 176620080713: 1767 The sio(4) driver has been removed from the i386 and amd64 1768 kernel configuration files. This means uart(4) is now the 1769 default serial port driver on those platforms as well. 1770 1771 To prevent collisions with the sio(4) driver, the uart(4) driver 1772 uses different names for its device nodes. This means the 1773 onboard serial port will now most likely be called "ttyu0" 1774 instead of "ttyd0". You may need to reconfigure applications to 1775 use the new device names. 1776 1777 When using the serial port as a boot console, be sure to update 1778 /boot/device.hints and /etc/ttys before booting the new kernel. 1779 If you forget to do so, you can still manually specify the hints 1780 at the loader prompt: 1781 1782 set hint.uart.0.at="isa" 1783 set hint.uart.0.port="0x3F8" 1784 set hint.uart.0.flags="0x10" 1785 set hint.uart.0.irq="4" 1786 boot -s 1787 178820080609: 1789 The gpt(8) utility has been removed. Use gpart(8) to partition 1790 disks instead. 1791 179220080603: 1793 The version that Linuxulator emulates was changed from 2.4.2 1794 to 2.6.16. If you experience any problems with Linux binaries 1795 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1796 if it fixes the problem contact emulation mailing list. 1797 179820080525: 1799 ISDN4BSD (I4B) was removed from the src tree. You may need to 1800 update a your kernel configuration and remove relevant entries. 1801 180220080509: 1803 I have checked in code to support multiple routing tables. 1804 See the man pages setfib(1) and setfib(2). 1805 This is a hopefully backwards compatible version, 1806 but to make use of it you need to compile your kernel 1807 with options ROUTETABLES=2 (or more up to 16). 1808 180920080420: 1810 The 802.11 wireless support was redone to enable multi-bss 1811 operation on devices that are capable. The underlying device 1812 is no longer used directly but instead wlanX devices are 1813 cloned with ifconfig. This requires changes to rc.conf files. 1814 For example, change: 1815 ifconfig_ath0="WPA DHCP" 1816 to 1817 wlans_ath0=wlan0 1818 ifconfig_wlan0="WPA DHCP" 1819 see rc.conf(5) for more details. In addition, mergemaster of 1820 /etc/rc.d is highly recommended. Simultaneous update of userland 1821 and kernel wouldn't hurt either. 1822 1823 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1824 modules were merged into the base wlan module. All references 1825 to these modules (e.g. in kernel config files) must be removed. 1826 182720080408: 1828 psm(4) has gained write(2) support in native operation level. 1829 Arbitrary commands can be written to /dev/psm%d and status can 1830 be read back from it. Therefore, an application is responsible 1831 for status validation and error recovery. It is a no-op in 1832 other operation levels. 1833 183420080312: 1835 Support for KSE threading has been removed from the kernel. To 1836 run legacy applications linked against KSE libmap.conf may 1837 be used. The following libmap.conf may be used to ensure 1838 compatibility with any prior release: 1839 1840 libpthread.so.1 libthr.so.1 1841 libpthread.so.2 libthr.so.2 1842 libkse.so.3 libthr.so.3 1843 184420080301: 1845 The layout of struct vmspace has changed. This affects libkvm 1846 and any executables that link against libkvm and use the 1847 kvm_getprocs() function. In particular, but not exclusively, 1848 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1849 The effects are minimal, but it's advisable to upgrade world 1850 nonetheless. 1851 185220080229: 1853 The latest em driver no longer has support in it for the 1854 82575 adapter, this is now moved to the igb driver. The 1855 split was done to make new features that are incompatible 1856 with older hardware easier to do. 1857 185820080220: 1859 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1860 likewise the kernel option is now GEOM_LINUX_LVM. 1861 186220080211: 1863 The default NFS mount mode has changed from UDP to TCP for 1864 increased reliability. If you rely on (insecurely) NFS 1865 mounting across a firewall you may need to update your 1866 firewall rules. 1867 186820080208: 1869 Belatedly note the addition of m_collapse for compacting 1870 mbuf chains. 1871 187220080126: 1873 The fts(3) structures have been changed to use adequate 1874 integer types for their members and so to be able to cope 1875 with huge file trees. The old fts(3) ABI is preserved 1876 through symbol versioning in libc, so third-party binaries 1877 using fts(3) should still work, although they will not take 1878 advantage of the extended types. At the same time, some 1879 third-party software might fail to build after this change 1880 due to unportable assumptions made in its source code about 1881 fts(3) structure members. Such software should be fixed 1882 by its vendor or, in the worst case, in the ports tree. 1883 FreeBSD_version 800015 marks this change for the unlikely 1884 case that a portable fix is impossible. 1885 188620080123: 1887 To upgrade to -current after this date, you must be running 1888 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1889 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1890 189120071128: 1892 The ADAPTIVE_GIANT kernel option has been retired because its 1893 functionality is the default now. 1894 189520071118: 1896 The AT keyboard emulation of sunkbd(4) has been turned on 1897 by default. In order to make the special symbols of the Sun 1898 keyboards driven by sunkbd(4) work under X these now have 1899 to be configured the same way as Sun USB keyboards driven 1900 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1901 1902 Option "XkbLayout" "us" 1903 Option "XkbRules" "xorg" 1904 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1905 190620071024: 1907 It has been decided that it is desirable to provide ABI 1908 backwards compatibility to the FreeBSD 4/5/6 versions of the 1909 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1910 broken with the introduction of PCI domain support (see the 1911 20070930 entry). Unfortunately, this required the ABI of 1912 PCIOCGETCONF to be broken again in order to be able to 1913 provide backwards compatibility to the old version of that 1914 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1915 again. As for prominent ports this affects neither pciutils 1916 nor xorg-server this time, the hal port needs to be rebuilt 1917 however. 1918 191920071020: 1920 The misnamed kthread_create() and friends have been renamed 1921 to kproc_create() etc. Many of the callers already 1922 used kproc_start().. 1923 I will return kthread_create() and friends in a while 1924 with implementations that actually create threads, not procs. 1925 Renaming corresponds with version 800002. 1926 192720071010: 1928 RELENG_7 branched. 1929 1930COMMON ITEMS: 1931 1932 General Notes 1933 ------------- 1934 Avoid using make -j when upgrading. While generally safe, there are 1935 sometimes problems using -j to upgrade. If your upgrade fails with 1936 -j, please try again without -j. From time to time in the past there 1937 have been problems using -j with buildworld and/or installworld. This 1938 is especially true when upgrading between "distant" versions (eg one 1939 that cross a major release boundary or several minor releases, or when 1940 several months have passed on the -current branch). 1941 1942 Sometimes, obscure build problems are the result of environment 1943 poisoning. This can happen because the make utility reads its 1944 environment when searching for values for global variables. To run 1945 your build attempts in an "environmental clean room", prefix all make 1946 commands with 'env -i '. See the env(1) manual page for more details. 1947 1948 When upgrading from one major version to another it is generally best 1949 to upgrade to the latest code in the currently installed branch first, 1950 then do an upgrade to the new branch. This is the best-tested upgrade 1951 path, and has the highest probability of being successful. Please try 1952 this approach before reporting problems with a major version upgrade. 1953 1954 When upgrading a live system, having a root shell around before 1955 installing anything can help undo problems. Not having a root shell 1956 around can lead to problems if pam has changed too much from your 1957 starting point to allow continued authentication after the upgrade. 1958 1959 ZFS notes 1960 --------- 1961 When upgrading the boot ZFS pool to a new version, always follow 1962 these two steps: 1963 1964 1.) recompile and reinstall the ZFS boot loader and boot block 1965 (this is part of "make buildworld" and "make installworld") 1966 1967 2.) update the ZFS boot block on your boot drive 1968 1969 The following example updates the ZFS boot block on the first 1970 partition (freebsd-boot) of a GPT partitioned drive ad0: 1971 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1972 1973 Non-boot pools do not need these updates. 1974 1975 To build a kernel 1976 ----------------- 1977 If you are updating from a prior version of FreeBSD (even one just 1978 a few days old), you should follow this procedure. It is the most 1979 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1980 1981 make kernel-toolchain 1982 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1983 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1984 1985 To test a kernel once 1986 --------------------- 1987 If you just want to boot a kernel once (because you are not sure 1988 if it works, or if you want to boot a known bad kernel to provide 1989 debugging information) run 1990 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1991 nextboot -k testkernel 1992 1993 To just build a kernel when you know that it won't mess you up 1994 -------------------------------------------------------------- 1995 This assumes you are already running a CURRENT system. Replace 1996 ${arch} with the architecture of your machine (e.g. "i386", 1997 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1998 1999 cd src/sys/${arch}/conf 2000 config KERNEL_NAME_HERE 2001 cd ../compile/KERNEL_NAME_HERE 2002 make depend 2003 make 2004 make install 2005 2006 If this fails, go to the "To build a kernel" section. 2007 2008 To rebuild everything and install it on the current system. 2009 ----------------------------------------------------------- 2010 # Note: sometimes if you are running current you gotta do more than 2011 # is listed here if you are upgrading from a really old current. 2012 2013 <make sure you have good level 0 dumps> 2014 make buildworld 2015 make kernel KERNCONF=YOUR_KERNEL_HERE 2016 [1] 2017 <reboot in single user> [3] 2018 mergemaster -p [5] 2019 make installworld 2020 mergemaster -i [4] 2021 make delete-old [6] 2022 <reboot> 2023 2024 To cross-install current onto a separate partition 2025 -------------------------------------------------- 2026 # In this approach we use a separate partition to hold 2027 # current's root, 'usr', and 'var' directories. A partition 2028 # holding "/", "/usr" and "/var" should be about 2GB in 2029 # size. 2030 2031 <make sure you have good level 0 dumps> 2032 <boot into -stable> 2033 make buildworld 2034 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2035 <maybe newfs current's root partition> 2036 <mount current's root partition on directory ${CURRENT_ROOT}> 2037 make installworld DESTDIR=${CURRENT_ROOT} 2038 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2039 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2040 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2041 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2042 <reboot into current> 2043 <do a "native" rebuild/install as described in the previous section> 2044 <maybe install compatibility libraries from ports/misc/compat*> 2045 <reboot> 2046 2047 2048 To upgrade in-place from stable to current 2049 ---------------------------------------------- 2050 <make sure you have good level 0 dumps> 2051 make buildworld [9] 2052 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2053 [1] 2054 <reboot in single user> [3] 2055 mergemaster -p [5] 2056 make installworld 2057 mergemaster -i [4] 2058 make delete-old [6] 2059 <reboot> 2060 2061 Make sure that you've read the UPDATING file to understand the 2062 tweaks to various things you need. At this point in the life 2063 cycle of current, things change often and you are on your own 2064 to cope. The defaults can also change, so please read ALL of 2065 the UPDATING entries. 2066 2067 Also, if you are tracking -current, you must be subscribed to 2068 freebsd-current@freebsd.org. Make sure that before you update 2069 your sources that you have read and understood all the recent 2070 messages there. If in doubt, please track -stable which has 2071 much fewer pitfalls. 2072 2073 [1] If you have third party modules, such as vmware, you 2074 should disable them at this point so they don't crash your 2075 system on reboot. 2076 2077 [3] From the bootblocks, boot -s, and then do 2078 fsck -p 2079 mount -u / 2080 mount -a 2081 cd src 2082 adjkerntz -i # if CMOS is wall time 2083 Also, when doing a major release upgrade, it is required that 2084 you boot into single user mode to do the installworld. 2085 2086 [4] Note: This step is non-optional. Failure to do this step 2087 can result in a significant reduction in the functionality of the 2088 system. Attempting to do it by hand is not recommended and those 2089 that pursue this avenue should read this file carefully, as well 2090 as the archives of freebsd-current and freebsd-hackers mailing lists 2091 for potential gotchas. The -U option is also useful to consider. 2092 See mergemaster(8) for more information. 2093 2094 [5] Usually this step is a noop. However, from time to time 2095 you may need to do this if you get unknown user in the following 2096 step. It never hurts to do it all the time. You may need to 2097 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2098 install) after the buildworld before this step if you last updated 2099 from current before 20130425 or from -stable before 20130430. 2100 2101 [6] This only deletes old files and directories. Old libraries 2102 can be deleted by "make delete-old-libs", but you have to make 2103 sure that no program is using those libraries anymore. 2104 2105 [8] In order to have a kernel that can run the 4.x binaries needed to 2106 do an installworld, you must include the COMPAT_FREEBSD4 option in 2107 your kernel. Failure to do so may leave you with a system that is 2108 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2109 required to run the 5.x binaries on more recent kernels. And so on 2110 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2111 2112 Make sure that you merge any new devices from GENERIC since the 2113 last time you updated your kernel config file. 2114 2115 [9] When checking out sources, you must include the -P flag to have 2116 cvs prune empty directories. 2117 2118 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2119 "?=" instead of the "=" assignment operator, so that buildworld can 2120 override the CPUTYPE if it needs to. 2121 2122 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2123 not on the command line, or in /etc/make.conf. buildworld will 2124 warn if it is improperly defined. 2125FORMAT: 2126 2127This file contains a list, in reverse chronological order, of major 2128breakages in tracking -current. It is not guaranteed to be a complete 2129list of such breakages, and only contains entries since October 10, 2007. 2130If you need to see UPDATING entries from before that date, you will need 2131to fetch an UPDATING file from an older FreeBSD release. 2132 2133Copyright information: 2134 2135Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2136 2137Redistribution, publication, translation and use, with or without 2138modification, in full or in part, in any form or format of this 2139document are permitted without further permission from the author. 2140 2141THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2142IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2143WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2144DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2145INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2146(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2147SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2148HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2149STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2150IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2151POSSIBILITY OF SUCH DAMAGE. 2152 2153Contact Warner Losh if you have any questions about your use of 2154this document. 2155 2156$FreeBSD: stable/10/UPDATING 274369 2014-11-11 05:49:35Z gjb $ 2157