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 16head, and then rebuild without this option. The bootstrap process from 17older version of current is a bit fragile. 18 19NOTE TO PEOPLE WHO THINK THAT FreeBSD 11.x IS SLOW: 20 FreeBSD 11.x has many debugging features turned on, in both the kernel 21 and userland. These features attempt to detect incorrect use of 22 system primitives, and encourage loud failure through extra sanity 23 checking and fail stop semantics. They also substantially impact 24 system performance. If you want to do performance measurement, 25 benchmarking, and optimization, you'll want to turn them off. This 26 includes various WITNESS- related kernel options, INVARIANTS, malloc 27 debugging flags in userland, and various verbose features in the 28 kernel. Many developers choose to disable these features on build 29 machines to maximize performance. (To completely disable malloc 30 debugging, define MALLOC_PRODUCTION in /etc/make.conf, or to merely 31 disable the most expensive debugging functionality run 32 "ln -s 'abort:false,junk:false' /etc/malloc.conf".) 33 3420140212: 35 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 36 This could cause certain C++ applications using shared libraries built 37 against the previous version of libc++ to crash. The incompatibility 38 has now been fixed, but any C++ applications or shared libraries built 39 between r261283 and r261801 should be recompiled. 40 4120140128: 42 The libelf and libdwarf libraries have been updated to newer 43 versions from upstream. Shared library version numbers for 44 these two libraries were bumped. Any ports or binaries 45 requiring these two libraries should be recompiled. 46 __FreeBSD_version is bumped to 1100006. 47 4820140110: 49 If a Makefile in a tests/ directory was auto-generating a Kyuafile 50 instead of providing an explicit one, this would prevent such 51 Makefile from providing its own Kyuafile in the future during 52 NO_CLEAN builds. This has been fixed in the Makefiles but manual 53 intervention is needed to clean an objdir if you use NO_CLEAN: 54 # find /usr/obj -name Kyuafile | xargs rm -f 55 5620131213: 57 The behavior of gss_pseudo_random() for the krb5 mechanism 58 has changed, for applications requesting a longer random string 59 than produced by the underlying enctype's pseudo-random() function. 60 In particular, the random string produced from a session key of 61 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 62 be different at the 17th octet and later, after this change. 63 The counter used in the PRF+ construction is now encoded as a 64 big-endian integer in accordance with RFC 4402. 65 __FreeBSD_version is bumped to 1100004. 66 6720131108: 68 The WITHOUT_ATF build knob has been removed and its functionality 69 has been subsumed into the more generic WITHOUT_TESTS. If you were 70 using the former to disable the build of the ATF libraries, you 71 should change your settings to use the latter. 72 7320131025: 74 The default version of mtree is nmtree which is obtained from 75 NetBSD. The output is generally the same, but may vary 76 slightly. If you found you need identical output adding 77 "-F freebsd9" to the command line should do the trick. For the 78 time being, the old mtree is available as fmtree. 79 8020131014: 81 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 82 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 83 1.1.4_8 and verify bsdyml not linked in, before running "make 84 delete-old-libs": 85 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 86 or 87 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 88 8920131010: 90 The rc.d/jail script has been updated to support jail(8) 91 configuration file. The "jail_<jname>_*" rc.conf(5) variables 92 for per-jail configuration are automatically converted to 93 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 94 This is transparently backward compatible. See below about some 95 incompatibilities and rc.conf(5) manual page for more details. 96 97 These variables are now deprecated in favor of jail(8) configuration 98 file. One can use "rc.d/jail config <jname>" command to generate 99 a jail(8) configuration file in /var/run/jail.<jname>.conf without 100 running the jail(8) utility. The default pathname of the 101 configuration file is /etc/jail.conf and can be specified by 102 using $jail_conf or $jail_<jname>_conf variables. 103 104 Please note that jail_devfs_ruleset accepts an integer at 105 this moment. Please consider to rewrite the ruleset name 106 with an integer. 107 10820130930: 109 BIND has been removed from the base system. If all you need 110 is a local resolver, simply enable and start the local_unbound 111 service instead. Otherwise, several versions of BIND are 112 available in the ports tree. The dns/bind99 port is one example. 113 114 With this change, nslookup(1) and dig(1) are no longer in the base 115 system. Users should instead use host(1) and drill(1) which are 116 in the base system. Alternatively, nslookup and dig can 117 be obtained by installing the dns/bind-tools port. 118 11920130916: 120 With the addition of unbound(8), a new unbound user is now 121 required during installworld. "mergemaster -p" can be used to 122 add the user prior to installworld, as documented in the handbook. 123 12420130911: 125 OpenSSH is now built with DNSSEC support, and will by default 126 silently trust signed SSHFP records. This can be controlled with 127 the VerifyHostKeyDNS client configuration setting. DNSSEC support 128 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 129 13020130906: 131 The GNU Compiler Collection and C++ standard library (libstdc++) 132 are no longer built by default on platforms where clang is the system 133 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 134 options in src.conf. 135 13620130905: 137 The PROCDESC kernel option is now part of the GENERIC kernel 138 configuration and is required for the rwhod(8) to work. 139 If you are using custom kernel configuration, you should include 140 'options PROCDESC'. 141 14220130905: 143 The API and ABI related to the Capsicum framework was modified 144 in backward incompatible way. The userland libraries and programs 145 have to be recompiled to work with the new kernel. This includes the 146 following libraries and programs, but the whole buildworld is 147 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 148 kdump, procstat, rwho, rwhod, uniq. 149 15020130903: 151 AES-NI intrinsic support has been added to gcc. The AES-NI module 152 has been updated to use this support. A new gcc is required to build 153 the aesni module on both i386 and amd64. 154 15520130821: 156 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 157 Thus "device padlock_rng" and "device rdrand_rng" should be 158 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 159 16020130813: 161 WITH_ICONV has been split into two feature sets. WITH_ICONV now 162 enables just the iconv* functionality and is now on by default. 163 WITH_LIBICONV_COMPAT enables the libiconv api and link time 164 compatability. Set WITHOUT_ICONV to build the old way. 165 If you have been using WITH_ICONV before, you will very likely 166 need to turn on WITH_LIBICONV_COMPAT. 167 16820130806: 169 INVARIANTS option now enables DEBUG for code with OpenSolaris and 170 Illumos origin, including ZFS. If you have INVARIANTS in your 171 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 172 explicitly. 173 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 174 locks if WITNESS option was set. Because that generated a lot of 175 witness(9) reports and all of them were believed to be false 176 positives, this is no longer done. New option OPENSOLARIS_WITNESS 177 can be used to achieve the previous behavior. 178 17920130806: 180 Timer values in IPv6 data structures now use time_uptime instead 181 of time_second. Although this is not a user-visible functional 182 change, userland utilities which directly use them---ndp(8), 183 rtadvd(8), and rtsold(8) in the base system---need to be updated 184 to r253970 or later. 185 18620130802: 187 find -delete can now delete the pathnames given as arguments, 188 instead of only files found below them or if the pathname did 189 not contain any slashes. Formerly, the following error message 190 would result: 191 192 find: -delete: <path>: relative path potentially not safe 193 194 Deleting the pathnames given as arguments can be prevented 195 without error messages using -mindepth 1 or by changing 196 directory and passing "." as argument to find. This works in the 197 old as well as the new version of find. 198 19920130726: 200 Behavior of devfs rules path matching has been changed. 201 Pattern is now always matched against fully qualified devfs 202 path and slash characters must be explicitly matched by 203 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 204 subdirectories must be reviewed. 205 20620130716: 207 The default ARM ABI has changed to the ARM EABI. The old ABI is 208 incompatible with the ARM EABI and all programs and modules will 209 need to be rebuilt to work with a new kernel. 210 211 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 212 213 NOTE: Support for the old ABI will be removed in the future and 214 users are advised to upgrade. 215 21620130709: 217 pkg_install has been disconnected from the build if you really need it 218 you should add WITH_PKGTOOLS in your src.conf(5). 219 22020130709: 221 Most of network statistics structures were changed to be able 222 keep 64-bits counters. Thus all tools, that work with networking 223 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 224 22520130629: 226 Fix targets that run multiple make's to use && rather than ; 227 so that subsequent steps depend on success of previous. 228 229 NOTE: if building 'universe' with -j* on stable/8 or stable/9 230 it would be better to start the build using bmake, to avoid 231 overloading the machine. 232 23320130618: 234 Fix a bug that allowed a tracing process (e.g. gdb) to write 235 to a memory-mapped file in the traced process's address space 236 even if neither the traced process nor the tracing process had 237 write access to that file. 238 23920130615: 240 CVS has been removed from the base system. An exact copy 241 of the code is available from the devel/cvs port. 242 24320130613: 244 Some people report the following error after the switch to bmake: 245 246 make: illegal option -- J 247 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 248 ... 249 *** [buildworld] Error code 2 250 251 this likely due to an old instance of make in 252 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 253 which src/Makefile will use that blindly, if it exists, so if 254 you see the above error: 255 256 rm -rf `make -V MAKEPATH` 257 258 should resolve it. 259 26020130516: 261 Use bmake by default. 262 Whereas before one could choose to build with bmake via 263 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 264 make. The goal is to remove these knobs for 10-RELEASE. 265 266 It is worth noting that bmake (like gmake) treats the command 267 line as the unit of failure, rather than statements within the 268 command line. Thus '(cd some/where && dosomething)' is safer 269 than 'cd some/where; dosomething'. The '()' allows consistent 270 behavior in parallel build. 271 27220130429: 273 Fix a bug that allows NFS clients to issue READDIR on files. 274 27520130426: 276 The WITHOUT_IDEA option has been removed because 277 the IDEA patent expired. 278 27920130426: 280 The sysctl which controls TRIM support under ZFS has been renamed 281 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 282 enabled by default. 283 28420130425: 285 The mergemaster command now uses the default MAKEOBJDIRPREFIX 286 rather than creating it's own in the temporary directory in 287 order allow access to bootstrapped versions of tools such as 288 install and mtree. When upgrading from version of FreeBSD where 289 the install command does not support -l, you will need to 290 install a new mergemaster command if mergemaster -p is required. 291 This can be accomplished with the command (cd src/usr.sbin/mergemaster 292 && make install). 293 29420130404: 295 Legacy ATA stack, disabled and replaced by new CAM-based one since 296 FreeBSD 9.0, completely removed from the sources. Kernel modules 297 atadisk and atapi*, user-level tools atacontrol and burncd are 298 removed. Kernel option `options ATA_CAM` is now permanently enabled 299 and removed. 300 30120130319: 302 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 303 and socketpair(2). Software, in particular Kerberos, may 304 automatically detect and use these during building. The resulting 305 binaries will not work on older kernels. 306 30720130308: 308 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 309 information, see the respective 20130304 entry). 310 31120130304: 312 Recent commits to callout(9) changed the size of struct callout, 313 so the KBI is probably heavily disturbed. Also, some functions 314 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 315 by macros. Every kernel module using it won't load, so rebuild 316 is requested. 317 318 The ctl device has been re-enabled in GENERIC for i386 and amd64, 319 but does not initialize by default (because of the new CTL_DISABLE 320 option) to save memory. To re-enable it, remove the CTL_DISABLE 321 option from the kernel config file or set kern.cam.ctl.disable=0 322 in /boot/loader.conf. 323 32420130301: 325 The ctl device has been disabled in GENERIC for i386 and amd64. 326 This was done due to the extra memory being allocated at system 327 initialisation time by the ctl driver which was only used if 328 a CAM target device was created. This makes a FreeBSD system 329 unusable on 128MB or less of RAM. 330 33120130208: 332 A new compression method (lz4) has been merged to -HEAD. Please 333 refer to zpool-features(7) for more information. 334 335 Please refer to the "ZFS notes" section of this file for information 336 on upgrading boot ZFS pools. 337 33820130129: 339 A BSD-licensed patch(1) variant has been added and is installed 340 as bsdpatch, being the GNU version the default patch. 341 To inverse the logic and use the BSD-licensed one as default, 342 while having the GNU version installed as gnupatch, rebuild 343 and install world with the WITH_BSD_PATCH knob set. 344 34520130121: 346 Due to the use of the new -l option to install(1) during build 347 and install, you must take care not to directly set the INSTALL 348 make variable in your /etc/make.conf, /etc/src.conf, or on the 349 command line. If you wish to use the -C flag for all installs 350 you may be able to add INSTALL+=-C to /etc/make.conf or 351 /etc/src.conf. 352 35320130118: 354 The install(1) option -M has changed meaning and now takes an 355 argument that is a file or path to append logs to. In the 356 unlikely event that -M was the last option on the command line 357 and the command line contained at least two files and a target 358 directory the first file will have logs appended to it. The -M 359 option served little practical purpose in the last decade so its 360 use is expected to be extremely rare. 361 36220121223: 363 After switching to Clang as the default compiler some users of ZFS 364 on i386 systems started to experience stack overflow kernel panics. 365 Please consider using 'options KSTACK_PAGES=4' in such configurations. 366 36720121222: 368 GEOM_LABEL now mangles label names read from file system metadata. 369 Mangling affect labels containing spaces, non-printable characters, 370 '%' or '"'. Device names in /etc/fstab and other places may need to 371 be updated. 372 37320121217: 374 By default, only the 10 most recent kernel dumps will be saved. To 375 restore the previous behaviour (no limit on the number of kernel dumps 376 stored in the dump directory) add the following line to /etc/rc.conf: 377 378 savecore_flags="" 379 38020121201: 381 With the addition of auditdistd(8), a new auditdistd user is now 382 required during installworld. "mergemaster -p" can be used to 383 add the user prior to installworld, as documented in the handbook. 384 38520121117: 386 The sin6_scope_id member variable in struct sockaddr_in6 is now 387 filled by the kernel before passing the structure to the userland via 388 sysctl or routing socket. This means the KAME-specific embedded scope 389 id in sin6_addr.s6_addr[2] is always cleared in userland application. 390 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 391 __FreeBSD_version is bumped to 1000025. 392 39320121105: 394 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 395 This means that the world and kernel will be compiled with clang 396 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 397 and /usr/bin/cpp. To disable this behavior and revert to building 398 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 399 of current may need to bootstrap WITHOUT_CLANG first if the clang 400 build fails (its compatibility window doesn't extend to the 9 stable 401 branch point). 402 40320121102: 404 The IPFIREWALL_FORWARD kernel option has been removed. Its 405 functionality now turned on by default. 406 40720121023: 408 The ZERO_COPY_SOCKET kernel option has been removed and 409 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 410 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 411 mechanism which is not safe and may result in kernel crashes. 412 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 413 driver supports disposeable external page sized mbuf storage. 414 Proper replacements for both zero-copy mechanisms are under 415 consideration and will eventually lead to complete removal 416 of the two kernel options. 417 41820121023: 419 The IPv4 network stack has been converted to network byte 420 order. The following modules need to be recompiled together 421 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 422 pf(4), ipfw(4), ng_ipfw(4), stf(4). 423 42420121022: 425 Support for non-MPSAFE filesystems was removed from VFS. The 426 VFS_VERSION was bumped, all filesystem modules shall be 427 recompiled. 428 42920121018: 430 All the non-MPSAFE filesystems have been disconnected from 431 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 432 portalfs, smbfs, xfs. 433 43420121016: 435 The interface cloning API and ABI has changed. The following 436 modules need to be recompiled together with kernel: 437 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 438 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 439 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 440 44120121015: 442 The sdhci driver was split in two parts: sdhci (generic SD Host 443 Controller logic) and sdhci_pci (actual hardware driver). 444 No kernel config modifications are required, but if you 445 load sdhc as a module you must switch to sdhci_pci instead. 446 44720121014: 448 Import the FUSE kernel and userland support into base system. 449 45020121013: 451 The GNU sort(1) program has been removed since the BSD-licensed 452 sort(1) has been the default for quite some time and no serious 453 problems have been reported. The corresponding WITH_GNU_SORT 454 knob has also gone. 455 45620121006: 457 The pfil(9) API/ABI for AF_INET family has been changed. Packet 458 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 459 with new kernel. 460 46120121001: 462 The net80211(4) ABI has been changed to allow for improved driver 463 PS-POLL and power-save support. All wireless drivers need to be 464 recompiled to work with the new kernel. 465 46620120913: 467 The random(4) support for the VIA hardware random number 468 generator (`PADLOCK') is no longer enabled unconditionally. 469 Add the padlock_rng device in the custom kernel config if 470 needed. The GENERIC kernels on i386 and amd64 do include the 471 device, so the change only affects the custom kernel 472 configurations. 473 47420120908: 475 The pf(4) packet filter ABI has been changed. pfctl(8) and 476 snmp_pf module need to be recompiled to work with new kernel. 477 47820120828: 479 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 480 to -HEAD. Pools that have empty_bpobj in active state can not be 481 imported read-write with ZFS implementations that do not support 482 this feature. For more information read the zpool-features(5) 483 manual page. 484 48520120727: 486 The sparc64 ZFS loader has been changed to no longer try to auto- 487 detect ZFS providers based on diskN aliases but now requires these 488 to be explicitly listed in the OFW boot-device environment variable. 489 49020120712: 491 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 492 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 493 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 494 49520120712: 496 The following sysctls and tunables have been renamed for consistency 497 with other variables: 498 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 499 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 500 50120120628: 502 The sort utility has been replaced with BSD sort. For now, GNU sort 503 is also available as "gnusort" or the default can be set back to 504 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 505 installed as "bsdsort". 506 50720120611: 508 A new version of ZFS (pool version 5000) has been merged to -HEAD. 509 Starting with this version the old system of ZFS pool versioning 510 is superseded by "feature flags". This concept enables forward 511 compatibility against certain future changes in functionality of ZFS 512 pools. The first read-only compatible "feature flag" for ZFS pools 513 is named "com.delphix:async_destroy". For more information 514 read the new zpool-features(5) manual page. 515 Please refer to the "ZFS notes" section of this file for information 516 on upgrading boot ZFS pools. 517 51820120417: 519 The malloc(3) implementation embedded in libc now uses sources imported 520 as contrib/jemalloc. The most disruptive API change is to 521 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 522 delete it prior to installworld, and optionally re-create it using the 523 new format after rebooting. See malloc.conf(5) for details 524 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 525 NAMESPACE section). 526 52720120328: 528 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 529 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 530 now spelled mips. This is to aid compatibility with third-party 531 software that expects this naming scheme in uname(3). Little-endian 532 settings are unchanged. If you are updating a big-endian mips64 machine 533 from before this change, you may need to set MACHINE_ARCH=mips64 in 534 your environment before the new build system will recognize your machine. 535 53620120306: 537 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 538 platforms. 539 54020120229: 541 Now unix domain sockets behave "as expected" on nullfs(5). Previously 542 nullfs(5) did not pass through all behaviours to the underlying layer, 543 as a result if we bound to a socket on the lower layer we could connect 544 only to the lower path; if we bound to the upper layer we could connect 545 only to the upper path. The new behavior is one can connect to both the 546 lower and the upper paths regardless what layer path one binds to. 547 54820120211: 549 The getifaddrs upgrade path broken with 20111215 has been restored. 550 If you have upgraded in between 20111215 and 20120209 you need to 551 recompile libc again with your kernel. You still need to recompile 552 world to be able to configure CARP but this restriction already 553 comes from 20111215. 554 55520120114: 556 The set_rcvar() function has been removed from /etc/rc.subr. All 557 base and ports rc.d scripts have been updated, so if you have a 558 port installed with a script in /usr/local/etc/rc.d you can either 559 hand-edit the rcvar= line, or reinstall the port. 560 561 An easy way to handle the mass-update of /etc/rc.d: 562 rm /etc/rc.d/* && mergemaster -i 563 56420120109: 565 panic(9) now stops other CPUs in the SMP systems, disables interrupts 566 on the current CPU and prevents other threads from running. 567 This behavior can be reverted using the kern.stop_scheduler_on_panic 568 tunable/sysctl. 569 The new behavior can be incompatible with kern.sync_on_panic. 570 57120111215: 572 The carp(4) facility has been changed significantly. Configuration 573 of the CARP protocol via ifconfig(8) has changed, as well as format 574 of CARP events submitted to devd(8) has changed. See manual pages 575 for more information. The arpbalance feature of carp(4) is currently 576 not supported anymore. 577 578 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 579 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 580 need to be recompiled. 581 58220111122: 583 The acpi_wmi(4) status device /dev/wmistat has been renamed to 584 /dev/wmistat0. 585 58620111108: 587 The option VFS_ALLOW_NONMPSAFE option has been added in order to 588 explicitely support non-MPSAFE filesystems. 589 It is on by default for all supported platform at this present 590 time. 591 59220111101: 593 The broken amd(4) driver has been replaced with esp(4) in the amd64, 594 i386 and pc98 GENERIC kernel configuration files. 595 59620110930: 597 sysinstall has been removed 598 59920110923: 600 The stable/9 branch created in subversion. This corresponds to the 601 RELENG_9 branch in CVS. 602 60320110913: 604 This commit modifies vfs_register() so that it uses a hash 605 calculation to set vfc_typenum, which is enabled by default. 606 The first time a system is booted after this change, the 607 vfc_typenum values will change for all file systems. The 608 main effect of this is a change to the NFS server file handles 609 for file systems that use vfc_typenum in their fsid, such as ZFS. 610 It will, however, prevent vfc_typenum from changing when file 611 systems are loaded in a different order for subsequent reboots. 612 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 613 until you are ready to remount all NFS clients after a reboot. 614 61520110828: 616 Bump the shared library version numbers for libraries that 617 do not use symbol versioning, have changed the ABI compared 618 to stable/8 and which shared library version was not bumped. 619 Done as part of 9.0-RELEASE cycle. 620 62120110815: 622 During the merge of Capsicum features, the fget(9) KPI was modified. 623 This may require the rebuilding of out-of-tree device drivers -- 624 issues have been reported specifically with the nVidia device driver. 625 __FreeBSD_version is bumped to 900041. 626 627 Also, there is a period between 20110811 and 20110814 where the 628 special devices /dev/{stdin,stdout,stderr} did not work correctly. 629 Building world from a kernel during that window may not work. 630 63120110628: 632 The packet filter (pf) code has been updated to OpenBSD 4.5. 633 You need to update userland tools to be in sync with kernel. 634 This update breaks backward compatibility with earlier pfsync(4) 635 versions. Care must be taken when updating redundant firewall setups. 636 63720110608: 638 The following sysctls and tunables are retired on x86 platforms: 639 machdep.hlt_cpus 640 machdep.hlt_logical_cpus 641 The following sysctl is retired: 642 machdep.hyperthreading_allowed 643 The sysctls were supposed to provide a way to dynamically offline and 644 online selected CPUs on x86 platforms, but the implementation has not 645 been reliable especially with SCHED_ULE scheduler. 646 machdep.hyperthreading_allowed tunable is still available to ignore 647 hyperthreading CPUs at OS level. 648 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 649 where X is an APIC ID of a CPU. Be advised, though, that disabling 650 CPUs in non-uniform fashion will result in non-uniform topology and 651 may lead to sub-optimal system performance with SCHED_ULE, which is 652 a default scheduler. 653 65420110607: 655 cpumask_t type is retired and cpuset_t is used in order to describe 656 a mask of CPUs. 657 65820110531: 659 Changes to ifconfig(8) for dynamic address family detection mandate 660 that you are running a kernel of 20110525 or later. Make sure to 661 follow the update procedure to boot a new kernel before installing 662 world. 663 66420110513: 665 Support for sun4v architecture is officially dropped 666 66720110503: 668 Several KPI breaking changes have been committed to the mii(4) layer, 669 the PHY drivers and consequently some Ethernet drivers using mii(4). 670 This means that miibus.ko and the modules of the affected Ethernet 671 drivers need to be recompiled. 672 673 Note to kernel developers: Given that the OUI bit reversion problem 674 was fixed as part of these changes all mii(4) commits related to OUIs, 675 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 676 handling, no longer can be merged verbatim to stable/8 and previous 677 branches. 678 67920110430: 680 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 681 into their kernel configurations along with 'device pci'. 682 68320110427: 684 The default NFS client is now the new NFS client, so fstype "newnfs" 685 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 686 Although mounts via fstype "nfs" will usually work without userland 687 changes, it is recommended that the mount(8) and mount_nfs(8) 688 commands be rebuilt from sources and that a link to mount_nfs called 689 mount_oldnfs be created. The new client is compiled into the 690 kernel with "options NFSCL" and this is needed for diskless root 691 file systems. The GENERIC kernel configs have been changed to use 692 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 693 To use the regular/old client, you can "mount -t oldnfs ...". For 694 a diskless root file system, you must also include a line like: 695 696 vfs.root.mountfrom="oldnfs:" 697 698 in the boot/loader.conf on the root fs on the NFS server to make 699 a diskless root fs use the old client. 700 70120110424: 702 The GENERIC kernels for all architectures now default to the new 703 CAM-based ATA stack. It means that all legacy ATA drivers were 704 removed and replaced by respective CAM drivers. If you are using 705 ATA device names in /etc/fstab or other places, make sure to update 706 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 707 where 'Y's are the sequential numbers starting from zero for each type 708 in order of detection, unless configured otherwise with tunables, 709 see cam(4)). There will be symbolic links created in /dev/ to map 710 old adX devices to the respective adaY. They should provide basic 711 compatibility for file systems mounting in most cases, but they do 712 not support old user-level APIs and do not have respective providers 713 in GEOM. Consider using updated management tools with new device names. 714 715 It is possible to load devices ahci, ata, siis and mvs as modules, 716 but option ATA_CAM should remain in kernel configuration to make ata 717 module work as CAM driver supporting legacy ATA controllers. Device ata 718 still can be used in modular fashion (atacore + ...). Modules atadisk 719 and atapi* are not used and won't affect operation in ATA_CAM mode. 720 Note that to use CAM-based ATA kernel should include CAM devices 721 scbus, pass, da (or explicitly ada), cd and optionally others. All of 722 them are parts of the cam module. 723 724 ataraid(4) functionality is now supported by the RAID GEOM class. 725 To use it you can load geom_raid kernel module and use graid(8) tool 726 for management. Instead of /dev/arX device names, use /dev/raid/rX. 727 728 No kernel config options or code have been removed, so if a problem 729 arises, please report it and optionally revert to the old ATA stack. 730 In order to do it you can remove from the kernel config: 731 options ATA_CAM 732 device ahci 733 device mvs 734 device siis 735 , and instead add back: 736 device atadisk # ATA disk drives 737 device ataraid # ATA RAID drives 738 device atapicd # ATAPI CDROM drives 739 device atapifd # ATAPI floppy drives 740 device atapist # ATAPI tape drives 741 74220110423: 743 The default NFS server has been changed to the new server, which 744 was referred to as the experimental server. If you need to switch 745 back to the old NFS server, you must now put the "-o" option on 746 both the mountd and nfsd commands. This can be done using the 747 mountd_flags and nfs_server_flags rc.conf variables until an 748 update to the rc scripts is committed, which is coming soon. 749 75020110418: 751 The GNU Objective-C runtime library (libobjc), and other Objective-C 752 related components have been removed from the base system. If you 753 require an Objective-C library, please use one of the available ports. 754 75520110331: 756 ath(4) has been split into bus- and device- modules. if_ath contains 757 the HAL, the TX rate control and the network device code. if_ath_pci 758 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 759 contains the AHB glue. Users need to load both if_ath_pci and if_ath 760 in order to use ath on everything else. 761 762 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 763 need to load if_ath and if_ath_pci for ath(4) operation. 764 76520110314: 766 As part of the replacement of sysinstall, the process of building 767 release media has changed significantly. For details, please re-read 768 release(7), which has been updated to reflect the new build process. 769 77020110218: 771 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 772 is the last available version under GPLv2. It brings a number of new 773 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 774 4.1 and SSE 4.2), better support for powerpc64, a number of new 775 directives, and lots of other small improvements. See the ChangeLog 776 file in contrib/binutils for the full details. 777 77820110218: 779 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 780 compliant, and will now use half of hash for authentication. 781 This will break interoperability with all stacks (including all 782 actual FreeBSD versions) who implement 783 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 784 authentication). 785 The only workaround with such peers is to use another HMAC 786 algorithm for IPsec ("phase 2") authentication. 787 78820110207: 789 Remove the uio_yield prototype and symbol. This function has 790 been misnamed since it was introduced and should not be 791 globally exposed with this name. The equivalent functionality 792 is now available using kern_yield(curthread->td_user_pri). 793 The function remains undocumented. 794 79520110112: 796 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 797 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 798 for scalar sysctls is defined but disabled. Code that needs 799 UQUAD to pass the type checking that must compile on older 800 systems where the define is not present can check against 801 __FreeBSD_version >= 900030. 802 803 The system dialog(1) has been replaced with a new version previously 804 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 805 with the previous version, but the libdialog associated with it has 806 a largely incompatible API. As such, the original version of libdialog 807 will be kept temporarily as libodialog, until its base system consumers 808 are replaced or updated. Bump __FreeBSD_version to 900030. 809 81020110103: 811 If you are trying to run make universe on a -stable system, and you get 812 the following warning: 813 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 814 unknown. config(8) likely too old." 815 or something similar to it, then you must upgrade your -stable system 816 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 817 stable/8) or build the config from the latest stable/8 branch and 818 install it on your system. 819 820 Prior to this date, building a current universe on 8-stable system from 821 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 822 error in the first kernel build phase. A new config on those old 823 systems will fix that problem for older versions of -current. 824 82520101228: 826 The TCP stack has been modified to allow Khelp modules to interact with 827 it via helper hook points and store per-connection data in the TCP 828 control block. Bump __FreeBSD_version to 900029. User space tools that 829 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 830 be recompiled. 831 83220101114: 833 Generic IEEE 802.3 annex 31B full duplex flow control support has been 834 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 835 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 836 to take advantage of it instead of using custom implementations. This 837 means that these drivers now no longer unconditionally advertise 838 support for flow control but only do so if flow control is a selected 839 media option. This was implemented in the generic support that way in 840 order to allow flow control to be switched on and off via ifconfig(8) 841 with the PHY specific default to typically off in order to protect 842 from unwanted effects. Consequently, if you used flow control with 843 one of the above mentioned drivers you now need to explicitly enable 844 it, for example via: 845 ifconfig bge0 media auto mediaopt flowcontrol 846 847 Along with the above mentioned changes generic support for setting 848 1000baseT master mode also has been added and brgphy(4), ciphy(4), 849 e1000phy(4) as well as ip1000phy(4) have been converted to take 850 advantage of it. This means that these drivers now no longer take the 851 link0 parameter for selecting master mode but the master media option 852 has to be used instead, for example like in the following: 853 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 854 855 Selection of master mode now is also available with all other PHY 856 drivers supporting 1000baseT. 857 85820101111: 859 The TCP stack has received a significant update to add support for 860 modularised congestion control and generally improve the clarity of 861 congestion control decisions. Bump __FreeBSD_version to 900025. User 862 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 863 sockstat) need to be recompiled. 864 86520101002: 866 The man(1) utility has been replaced by a new version that no longer 867 uses /etc/manpath.config. Please consult man.conf(5) for how to 868 migrate local entries to the new format. 869 87020100928: 871 The copyright strings printed by login(1) and sshd(8) at the time of a 872 new connection have been removed to follow other operating systems and 873 upstream sshd. 874 87520100915: 876 A workaround for a fixed ld bug has been removed in kernel code, 877 so make sure that your system ld is built from sources after 878 revision 210245 from 2010-07-19 (r211583 if building head kernel 879 on stable/8, r211584 for stable/7; both from 2010-08-21). 880 A symptom of incorrect ld version is different addresses for 881 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 882 88320100913: 884 The $ipv6_prefer variable in rc.conf(5) has been split into 885 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 886 887 The $ip6addrctl_policy is a variable to choose a pre-defined 888 address selection policy set by ip6addrctl(8). A value 889 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 890 default is "AUTO". 891 892 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 893 flag (see an entry of 20090926) is set on an interface with no 894 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 895 security reason. If you want IPv6 link-local address on all 896 interfaces by default, set this to "YES". 897 898 The old ipv6_prefer="YES" is equivalent to 899 ipv6_activate_all_interfaces="YES" and 900 ip6addrctl_policy="ipv6_prefer". 901 90220100913: 903 DTrace has grown support for userland tracing. Due to this, DTrace is 904 now i386 and amd64 only. 905 dtruss(1) is now installed by default on those systems and a new 906 kernel module is needed for userland tracing: fasttrap. 907 No changes to your kernel config file are necessary to enable 908 userland tracing, but you might consider adding 'STRIP=' and 909 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 910 to have informative userland stack traces in DTrace (ustack). 911 91220100725: 913 The acpi_aiboost(4) driver has been removed in favor of the new 914 aibs(4) driver. You should update your kernel configuration file. 915 91620100722: 917 BSD grep has been imported to the base system and it is built by 918 default. It is completely BSD licensed, highly GNU-compatible, uses 919 less memory than its GNU counterpart and has a small codebase. 920 However, it is slower than its GNU counterpart, which is mostly 921 noticeable for larger searches, for smaller ones it is measurable 922 but not significant. The reason is complex, the most important factor 923 is that we lack a modern and efficient regex library and GNU 924 overcomes this by optimizing the searches internally. Future work 925 on improving the regex performance is planned, for the meantime, 926 users that need better performance, can build GNU grep instead by 927 setting the WITH_GNU_GREP knob. 928 92920100713: 930 Due to the import of powerpc64 support, all existing powerpc kernel 931 configuration files must be updated with a machine directive like this: 932 machine powerpc powerpc 933 934 In addition, an updated config(8) is required to build powerpc kernels 935 after this change. 936 93720100713: 938 A new version of ZFS (version 15) has been merged to -HEAD. 939 This version uses a python library for the following subcommands: 940 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 941 For full functionality of these commands the following port must 942 be installed: sysutils/py-zfs 943 94420100429: 945 'vm_page's are now hashed by physical address to an array of mutexes. 946 Currently this is only used to serialize access to hold_count. Over 947 time the page queue mutex will be peeled away. This changes the size 948 of pmap on every architecture. And requires all callers of vm_page_hold 949 and vm_page_unhold to be updated. 950 95120100402: 952 WITH_CTF can now be specified in src.conf (not recommended, there 953 are some problems with static executables), make.conf (would also 954 affect ports which do not use GNU make and do not override the 955 compile targets) or in the kernel config (via "makeoptions 956 WITH_CTF=yes"). 957 When WITH_CTF was specified there before this was silently ignored, 958 so make sure that WITH_CTF is not used in places which could lead 959 to unwanted behavior. 960 96120100311: 962 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 963 to allow 32-bit compatibility on non-x86 platforms. All kernel 964 configurations on amd64 and ia64 platforms using these options must 965 be modified accordingly. 966 96720100113: 968 The utmp user accounting database has been replaced with utmpx, 969 the user accounting interface standardized by POSIX. 970 Unfortunately the semantics of utmp and utmpx don't match, 971 making it practically impossible to support both interfaces. 972 The user accounting database is used by tools like finger(1), 973 last(1), talk(1), w(1) and ac(8). 974 975 All applications in the base system use utmpx. This means only 976 local binaries (e.g. from the ports tree) may still use these 977 utmp database files. These applications must be rebuilt to make 978 use of utmpx. 979 980 After the system has been upgraded, it is safe to remove the old 981 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 982 assuming their contents is of no importance anymore. Old wtmp 983 databases can only be used by last(1) and ac(8) after they have 984 been converted to the new format using wtmpcvt(1). 985 98620100108: 987 Introduce the kernel thread "deadlock resolver" (which can be enabled 988 via the DEADLKRES option, see NOTES for more details) and the 989 sleepq_type() function for sleepqueues. 990 99120091202: 992 The rc.firewall and rc.firewall6 were unified, and 993 rc.firewall6 and rc.d/ip6fw were removed. 994 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 995 variables are obsoleted. Instead, the following new rc 996 variables are added to rc.d/ipfw: 997 998 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 999 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1000 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1001 1002 The meanings correspond to the relevant IPv4 variables. 1003 100420091125: 1005 8.0-RELEASE. 1006 100720091113: 1008 The default terminal emulation for syscons(4) has been changed 1009 from cons25 to xterm on all platforms except pc98. This means 1010 that the /etc/ttys file needs to be updated to ensure correct 1011 operation of applications on the console. 1012 1013 The terminal emulation style can be toggled per window by using 1014 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1015 options can be used to change the compile-time default back to 1016 cons25. 1017 1018 To prevent graphical artifacts, make sure the TERM environment 1019 variable is set to match the terminal emulation that is being 1020 performed by syscons(4). 1021 102220091109: 1023 The layout of the structure ieee80211req_scan_result has changed. 1024 Applications that require wireless scan results (e.g. ifconfig(8)) 1025 from net80211 need to be recompiled. 1026 1027 Applications such as wpa_supplicant(8) may require a full world 1028 build without using NO_CLEAN in order to get synchronized with the 1029 new structure. 1030 103120091025: 1032 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1033 There's one kernel module for each firmware. Adding "device iwnfw" 1034 to the kernel configuration file means including all three firmware 1035 images inside the kernel. If you want to include just the one for 1036 your wireless card, use the devices iwn4965fw, iwn5000fw or 1037 iwn5150fw. 1038 103920090926: 1040 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1041 into rc.d/netif. The changes are the following: 1042 1043 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1044 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1045 Note that both variables need the "inet6" keyword at the head. 1046 1047 Do not set $ipv6_network_interfaces manually if you do not 1048 understand what you are doing. It is not needed in most cases. 1049 1050 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1051 they are obsolete. 1052 1053 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1054 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1055 1056 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1057 all configured interfaces have "inet6 accept_rtadv" in the 1058 $ifconfig_IF_ipv6. These are for backward compatibility. 1059 1060 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1061 functionality of interfaces with no corresponding 1062 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1063 and the default address selection policy of ip6addrctl(8) 1064 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1065 Note that if you want to configure IPv6 functionality on the 1066 disabled interfaces after boot, first you need to clear the flag by 1067 using ifconfig(8) like: 1068 1069 ifconfig em0 inet6 -ifdisabled 1070 1071 If YES, the default address selection policy is set as 1072 IPv6-preferred. 1073 1074 The default value of $ipv6_prefer is NO. 1075 1076 4. If your system need to receive Router Advertisement messages, 1077 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1078 scripts automatically invoke rtsol(8) when the interface becomes 1079 UP. The Router Advertisement messages are used for SLAAC 1080 (State-Less Address AutoConfiguration). 1081 108220090922: 1083 802.11s D3.03 support was committed. This is incompatible with the 1084 previous code, which was based on D3.0. 1085 108620090912: 1087 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1088 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1089 control whether accepting Router Advertisement messages or not. 1090 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1091 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1092 The ifconfig(8) utility now supports these flags. 1093 109420090910: 1095 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1096 mount(8) and -a option for df(1) to see them. 1097 109820090825: 1099 The old tunable hw.bus.devctl_disable has been superseded by 1100 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1101 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1102 is 1000. 1103 110420090813: 1105 Remove the option STOP_NMI. The default action is now to use NMI only 1106 for KDB via the newly introduced function stop_cpus_hard() and 1107 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1108 110920090803: 1110 The stable/8 branch created in subversion. This corresponds to the 1111 RELENG_8 branch in CVS. 1112 111320090719: 1114 Bump the shared library version numbers for all libraries that do not 1115 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1116 __FreeBSD_version to 800105. 1117 111820090714: 1119 Due to changes in the implementation of virtual network stack support, 1120 all network-related kernel modules must be recompiled. As this change 1121 breaks the ABI, bump __FreeBSD_version to 800104. 1122 112320090713: 1124 The TOE interface to the TCP syncache has been modified to remove 1125 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1126 The cxgb driver is the only TOE consumer affected by this change, and 1127 needs to be recompiled along with the kernel. As this change breaks 1128 the ABI, bump __FreeBSD_version to 800103. 1129 113020090712: 1131 Padding has been added to struct tcpcb, sackhint and tcpstat in 1132 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1133 maintaining the ABI. However, this change breaks the ABI, so bump 1134 __FreeBSD_version to 800102. User space tools that rely on the size of 1135 any of these structs (e.g. sockstat) need to be recompiled. 1136 113720090630: 1138 The NFS_LEGACYRPC option has been removed along with the old kernel 1139 RPC implementation that this option selected. Kernel configurations 1140 may need to be adjusted. 1141 114220090629: 1143 The network interface device nodes at /dev/net/<interface> have been 1144 removed. All ioctl operations can be performed the normal way using 1145 routing sockets. The kqueue functionality can generally be replaced 1146 with routing sockets. 1147 114820090628: 1149 The documentation from the FreeBSD Documentation Project (Handbook, 1150 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1151 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1152 115320090624: 1154 The ABI of various structures related to the SYSV IPC API have been 1155 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1156 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1157 800100. 1158 115920090622: 1160 Layout of struct vnet has changed as routing related variables were 1161 moved to their own Vimage module. Modules need to be recompiled. Bump 1162 __FreeBSD_version to 800099. 1163 116420090619: 1165 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1166 respectively. As long as no more than 16 groups per process are used, 1167 no changes should be visible. When more than 16 groups are used, old 1168 binaries may fail if they call getgroups() or getgrouplist() with 1169 statically sized storage. Recompiling will work around this, but 1170 applications should be modified to use dynamically allocated storage 1171 for group arrays as POSIX.1-2008 does not cap an implementation's 1172 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1173 1174 NFS and portalfs mounts may also be affected as the list of groups is 1175 truncated to 16. Users of NFS who use more than 16 groups, should 1176 take care that negative group permissions are not used on the exported 1177 file systems as they will not be reliable unless a GSSAPI based 1178 authentication method is used. 1179 118020090616: 1181 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1182 option compiles in the support for adaptive spinning for lockmgrs 1183 which want to enable it. The lockinit() function now accepts the flag 1184 LK_ADAPTIVE in order to make the lock object subject to adaptive 1185 spinning when both held in write and read mode. 1186 118720090613: 1188 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1189 changed. User applications that use this ioctl need to be rebuilt. 1190 119120090611: 1192 The layout of struct thread has changed. Kernel and modules need to 1193 be rebuilt. 1194 119520090608: 1196 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1197 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1198 119920090602: 1200 window(1) has been removed from the base system. It can now be 1201 installed from ports. The port is called misc/window. 1202 120320090601: 1204 The way we are storing and accessing `routing table' entries has 1205 changed. Programs reading the FIB, like netstat, need to be 1206 re-compiled. 1207 120820090601: 1209 A new netisr implementation has been added for FreeBSD 8. Network 1210 file system modules, such as igmp, ipdivert, and others, should be 1211 rebuilt. 1212 Bump __FreeBSD_version to 800096. 1213 121420090530: 1215 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1216 more valid. 1217 121820090530: 1219 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1220 Bump __FreeBSD_version to 800094. 1221 122220090529: 1223 Add mnt_xflag field to 'struct mount'. File system modules need to be 1224 rebuilt. 1225 Bump __FreeBSD_version to 800093. 1226 122720090528: 1228 The compiling option ADAPTIVE_SX has been retired while it has been 1229 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1230 The KPI for sx_init_flags() changes as accepting flags: 1231 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1232 been introduced in order to handle the reversed logic. 1233 Bump __FreeBSD_version to 800092. 1234 123520090527: 1236 Add support for hierarchical jails. Remove global securelevel. 1237 Bump __FreeBSD_version to 800091. 1238 123920090523: 1240 The layout of struct vnet_net has changed, therefore modules 1241 need to be rebuilt. 1242 Bump __FreeBSD_version to 800090. 1243 124420090523: 1245 The newly imported zic(8) produces a new format in the output. Please 1246 run tzsetup(8) to install the newly created data to /etc/localtime. 1247 124820090520: 1249 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1250 hw.usb.* and is now consistent again with previous releases. 1251 125220090520: 1253 802.11 monitor mode support was revised and driver api's were changed. 1254 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1255 of DLT_IEEE802_11. No user-visible data structures were changed but 1256 applications that use DLT_IEEE802_11 may require changes. 1257 Bump __FreeBSD_version to 800088. 1258 125920090430: 1260 The layout of the following structs has changed: sysctl_oid, 1261 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1262 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1263 panics may be experienced. World rebuild is required for 1264 correctly checking networking state from userland. 1265 Bump __FreeBSD_version to 800085. 1266 126720090429: 1268 MLDv2 and Source-Specific Multicast (SSM) have been merged 1269 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1270 The implementation of SSM within FreeBSD's IPv6 stack closely 1271 follows the IPv4 implementation. 1272 1273 For kernel developers: 1274 1275 * The most important changes are that the ip6_output() and 1276 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1277 and this lock has been downgraded to a non-recursive mutex. 1278 1279 * As with the changes to the IPv4 stack to support SSM, filtering 1280 of inbound multicast traffic must now be performed by transport 1281 protocols within the IPv6 stack. This does not apply to TCP and 1282 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1283 1284 * The KPIs used by IPv6 multicast are similar to those used by 1285 the IPv4 stack, with the following differences: 1286 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1287 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1288 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1289 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1290 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1291 for MLDv1 have an additional 'timer' argument which is used to 1292 jitter the initial membership report for the solicited-node 1293 multicast membership on-link. 1294 * This is not strictly needed for MLDv2, which already jitters 1295 its report transmissions. However, the 'timer' argument is 1296 preserved in case MLDv1 is active on the interface. 1297 1298 * The KAME linked-list based IPv6 membership implementation has 1299 been refactored to use a vector similar to that used by the IPv4 1300 stack. 1301 Code which maintains a list of its own multicast memberships 1302 internally, e.g. carp, has been updated to reflect the new 1303 semantics. 1304 1305 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1306 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1307 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1308 implementation constraint which needs to be addressed in HEAD. 1309 1310 For application developers: 1311 1312 * The changes are broadly similar to those made for the IPv4 1313 stack. 1314 1315 * The use of IPv4 and IPv6 multicast socket options on the same 1316 socket, using mapped addresses, HAS NOT been tested or supported. 1317 1318 * There are a number of issues with the implementation of various 1319 IPv6 multicast APIs which need to be resolved in the API surface 1320 before the implementation is fully compatible with KAME userland 1321 use, and these are mostly to do with interface index treatment. 1322 1323 * The literature available discusses the use of either the delta / ASM 1324 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1325 using setsourcefilter(3)/getsourcefilter(3). For more information 1326 please refer to RFC 3768, 'Socket Interface Extensions for 1327 Multicast Source Filters'. 1328 1329 * Applications which use the published RFC 3678 APIs should be fine. 1330 1331 For systems administrators: 1332 1333 * The mtest(8) utility has been refactored to support IPv6, in 1334 addition to IPv4. Interface addresses are no longer accepted 1335 as arguments, their names must be used instead. The utility 1336 will map the interface name to its first IPv4 address as 1337 returned by getifaddrs(3). 1338 1339 * The ifmcstat(8) utility has also been updated to print the MLDv2 1340 endpoint state and source filter lists via sysctl(3). 1341 1342 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1343 loopback of IPv6 multicast datagrams by default; it defaults to 1 1344 to preserve the existing behaviour. Disabling multicast loopback is 1345 recommended for optimal system performance. 1346 1347 * The IPv6 MROUTING code has been changed to examine this sysctl 1348 instead of attempting to perform a group lookup before looping 1349 back forwarded datagrams. 1350 1351 Bump __FreeBSD_version to 800084. 1352 135320090422: 1354 Implement low-level Bluetooth HCI API. 1355 Bump __FreeBSD_version to 800083. 1356 135720090419: 1358 The layout of struct malloc_type, used by modules to register new 1359 memory allocation types, has changed. Most modules will need to 1360 be rebuilt or panics may be experienced. 1361 Bump __FreeBSD_version to 800081. 1362 136320090415: 1364 Anticipate overflowing inp_flags - add inp_flags2. 1365 This changes most offsets in inpcb, so checking v4 connection 1366 state will require a world rebuild. 1367 Bump __FreeBSD_version to 800080. 1368 136920090415: 1370 Add an llentry to struct route and struct route_in6. Modules 1371 embedding a struct route will need to be recompiled. 1372 Bump __FreeBSD_version to 800079. 1373 137420090414: 1375 The size of rt_metrics_lite and by extension rtentry has changed. 1376 Networking administration apps will need to be recompiled. 1377 The route command now supports show as an alias for get, weighting 1378 of routes, sticky and nostick flags to alter the behavior of stateful 1379 load balancing. 1380 Bump __FreeBSD_version to 800078. 1381 138220090408: 1383 Do not use Giant for kbdmux(4) locking. This is wrong and 1384 apparently causing more problems than it solves. This will 1385 re-open the issue where interrupt handlers may race with 1386 kbdmux(4) in polling mode. Typical symptoms include (but 1387 not limited to) duplicated and/or missing characters when 1388 low level console functions (such as gets) are used while 1389 interrupts are enabled (for example geli password prompt, 1390 mountroot prompt etc.). Disabling kbdmux(4) may help. 1391 139220090407: 1393 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1394 kernel modules referencing any of the above need to be recompiled. 1395 Bump __FreeBSD_version to 800075. 1396 139720090320: 1398 GEOM_PART has become the default partition slicer for storage devices, 1399 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1400 introduces some changes: 1401 1402 MSDOS/EBR: the devices created from MSDOS extended partition entries 1403 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1404 to devices with offset-based names. fstabs may need to be modified. 1405 1406 BSD: the "geometry does not match label" warning is harmless in most 1407 cases but it points to problems in file system misalignment with 1408 disk geometry. The "c" partition is now implicit, covers the whole 1409 top-level drive and cannot be (mis)used by users. 1410 1411 General: Kernel dumps are now not allowed to be written to devices 1412 whose partition types indicate they are meant to be used for file 1413 systems (or, in case of MSDOS partitions, as something else than 1414 the "386BSD" type). 1415 1416 Most of these changes date approximately from 200812. 1417 141820090319: 1419 The uscanner(4) driver has been removed from the kernel. This follows 1420 Linux removing theirs in 2.6 and making libusb the default interface 1421 (supported by sane). 1422 142320090319: 1424 The multicast forwarding code has been cleaned up. netstat(1) 1425 only relies on KVM now for printing bandwidth upcall meters. 1426 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1427 ip6_mroute_mod respectively. The config(5) options for statically 1428 compiling this code remain the same, i.e. 'options MROUTING'. 1429 143020090315: 1431 Support for the IFF_NEEDSGIANT network interface flag has been 1432 removed, which means that non-MPSAFE network device drivers are no 1433 longer supported. In particular, if_ar, if_sr, and network device 1434 drivers from the old (legacy) USB stack can no longer be built or 1435 used. 1436 143720090313: 1438 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1439 a bunch of new language catalog files have also been added. 1440 This means that some common libc messages are now localized and 1441 they depend on the LC_MESSAGES environmental variable. 1442 144320090313: 1444 The k8temp(4) driver has been renamed to amdtemp(4) since 1445 support for Family 10 and Family 11 CPU families was added. 1446 144720090309: 1448 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1449 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1450 1451 For kernel developers, the most important changes are that the 1452 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1453 and this lock has been downgraded to a non-recursive mutex. 1454 1455 Transport protocols (UDP, Raw IP) are now responsible for filtering 1456 inbound multicast traffic according to group membership and source 1457 filters. The imo_multicast_filter() KPI exists for this purpose. 1458 Transports which do not use multicast (SCTP, TCP) already reject 1459 multicast by default. Forwarding and receive performance may improve 1460 as a mutex acquisition is no longer needed in the ip_input() 1461 low-level input path. in_addmulti() and in_delmulti() are shimmed 1462 to new KPIs which exist to support SSM in-kernel. 1463 1464 For application developers, it is recommended that loopback of 1465 multicast datagrams be disabled for best performance, as this 1466 will still cause the lock to be taken for each looped-back 1467 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1468 be tuned to 0 to disable loopback by default; it defaults to 1 1469 to preserve the existing behaviour. 1470 1471 For systems administrators, to obtain best performance with 1472 multicast reception and multiple groups, it is always recommended 1473 that a card with a suitably precise hash filter is used. Hash 1474 collisions will still result in the lock being taken within the 1475 transport protocol input path to check group membership. 1476 1477 If deploying FreeBSD in an environment with IGMP snooping switches, 1478 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1479 enabled; this forces 224.0.0.0/24 group membership to be announced 1480 via IGMP. 1481 1482 The size of 'struct igmpstat' has changed; netstat needs to be 1483 recompiled to reflect this. 1484 Bump __FreeBSD_version to 800070. 1485 148620090309: 1487 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1488 updated to use it. This requires a buildworld/installworld in order to 1489 update the library and dependencies (usbconfig, etc). Its advisable to 1490 rebuild all ports which uses libusb. More specific directions are given 1491 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1492 libusb are no longer required and can be removed. 1493 149420090302: 1495 A workaround is committed to allow the creation of System V shared 1496 memory segment of size > 2 GB on the 64-bit architectures. 1497 Due to a limitation of the existing ABI, the shm_segsz member 1498 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1499 wrong for large segments. Note that limits must be explicitly 1500 raised to allow such segments to be created. 1501 150220090301: 1503 The layout of struct ifnet has changed, requiring a rebuild of all 1504 network device driver modules. 1505 150620090227: 1507 The /dev handling for the new USB stack has changed, a 1508 buildworld/installworld is required for libusb20. 1509 151020090223: 1511 The new USB2 stack has now been permanently moved in and all kernel and 1512 module names reverted to their previous values (eg, usb, ehci, ohci, 1513 ums, ...). The old usb stack can be compiled in by prefixing the name 1514 with the letter 'o', the old usb modules have been removed. 1515 Updating entry 20090216 for xorg and 20090215 for libmap may still 1516 apply. 1517 151820090217: 1519 The rc.conf(5) option if_up_delay has been renamed to 1520 defaultroute_delay to better reflect its purpose. If you have 1521 customized this setting in /etc/rc.conf you need to update it to 1522 use the new name. 1523 152420090216: 1525 xorg 7.4 wants to configure its input devices via hald which does not 1526 yet work with USB2. If the keyboard/mouse does not work in xorg then 1527 add 1528 Option "AllowEmptyInput" "off" 1529 to your ServerLayout section. This will cause X to use the configured 1530 kbd and mouse sections from your xorg.conf. 1531 153220090215: 1533 The GENERIC kernels for all architectures now default to the new USB2 1534 stack. No kernel config options or code have been removed so if a 1535 problem arises please report it and optionally revert to the old USB 1536 stack. If you are loading USB kernel modules or have a custom kernel 1537 that includes GENERIC then ensure that usb names are also changed over, 1538 eg uftdi -> usb2_serial_ftdi. 1539 1540 Older programs linked against the ports libusb 0.1 need to be 1541 redirected to the new stack's libusb20. /etc/libmap.conf can 1542 be used for this: 1543 # Map old usb library to new one for usb2 stack 1544 libusb-0.1.so.8 libusb20.so.1 1545 154620090209: 1547 All USB ethernet devices now attach as interfaces under the name ueN 1548 (eg. ue0). This is to provide a predictable name as vendors often 1549 change usb chipsets in a product without notice. 1550 155120090203: 1552 The ichsmb(4) driver has been changed to require SMBus slave 1553 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1554 All of the other SMBus controller drivers require left-justified 1555 slave addresses, so this change makes all the drivers provide the 1556 same interface. 1557 155820090201: 1559 INET6 statistics (struct ip6stat) was updated. 1560 netstat(1) needs to be recompiled. 1561 156220090119: 1563 NTFS has been removed from GENERIC kernel on amd64 to match 1564 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1565 will load ntfs.ko module automatically when NTFS support is 1566 actually needed, unless ntfs.ko is not installed or security 1567 level prohibits loading kernel modules. If either is the case, 1568 "options NTFS" has to be added into kernel config. 1569 157020090115: 1571 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1572 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1573 800061. User space tools that rely on the size of struct tcpcb in 1574 tcp_var.h (e.g. sockstat) need to be recompiled. 1575 157620081225: 1577 ng_tty(4) module updated to match the new TTY subsystem. 1578 Due to API change, user-level applications must be updated. 1579 New API support added to mpd5 CVS and expected to be present 1580 in next mpd5.3 release. 1581 158220081219: 1583 With __FreeBSD_version 800060 the makefs tool is part of 1584 the base system (it was a port). 1585 158620081216: 1587 The afdata and ifnet locks have been changed from mutexes to 1588 rwlocks, network modules will need to be re-compiled. 1589 159020081214: 1591 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1592 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1593 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1594 architecture and 40 bytes on 64-bit architecture. The userland 1595 applications "arp" and "ndp" have been updated accordingly. 1596 The output from "netstat -r" shows only routing entries and 1597 none of the L2 information. 1598 159920081130: 1600 __FreeBSD_version 800057 marks the switchover from the 1601 binary ath hal to source code. Users must add the line: 1602 1603 options AH_SUPPORT_AR5416 1604 1605 to their kernel config files when specifying: 1606 1607 device ath_hal 1608 1609 The ath_hal module no longer exists; the code is now compiled 1610 together with the driver in the ath module. It is now 1611 possible to tailor chip support (i.e. reduce the set of chips 1612 and thereby the code size); consult ath_hal(4) for details. 1613 161420081121: 1615 __FreeBSD_version 800054 adds memory barriers to 1616 <machine/atomic.h>, new interfaces to ifnet to facilitate 1617 multiple hardware transmit queues for cards that support 1618 them, and a lock-less ring-buffer implementation to 1619 enable drivers to more efficiently manage queueing of 1620 packets. 1621 162220081117: 1623 A new version of ZFS (version 13) has been merged to -HEAD. 1624 This version has zpool attribute "listsnapshots" off by 1625 default, which means "zfs list" does not show snapshots, 1626 and is the same as Solaris behavior. 1627 162820081028: 1629 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1630 163120081009: 1632 The uhci, ohci, ehci and slhci USB Host controller drivers have 1633 been put into separate modules. If you load the usb module 1634 separately through loader.conf you will need to load the 1635 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1636 controller add the following to loader.conf: 1637 1638 uhci_load="YES" 1639 ehci_load="YES" 1640 164120081009: 1642 The ABI used by the PMC toolset has changed. Please keep 1643 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1644 sync. 1645 164620081009: 1647 atapci kernel module now includes only generic PCI ATA 1648 driver. AHCI driver moved to ataahci kernel module. 1649 All vendor-specific code moved into separate kernel modules: 1650 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1651 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1652 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1653 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1654 165520080820: 1656 The TTY subsystem of the kernel has been replaced by a new 1657 implementation, which provides better scalability and an 1658 improved driver model. Most common drivers have been migrated to 1659 the new TTY subsystem, while others have not. The following 1660 drivers have not yet been ported to the new TTY layer: 1661 1662 PCI/ISA: 1663 cy, digi, rc, rp, sio 1664 1665 USB: 1666 ubser, ucycom 1667 1668 Line disciplines: 1669 ng_h4, ng_tty, ppp, sl, snp 1670 1671 Adding these drivers to your kernel configuration file shall 1672 cause compilation to fail. 1673 167420080818: 1675 ntpd has been upgraded to 4.2.4p5. 1676 167720080801: 1678 OpenSSH has been upgraded to 5.1p1. 1679 1680 For many years, FreeBSD's version of OpenSSH preferred DSA 1681 over RSA for host and user authentication keys. With this 1682 upgrade, we've switched to the vendor's default of RSA over 1683 DSA. This may cause upgraded clients to warn about unknown 1684 host keys even for previously known hosts. Users should 1685 follow the usual procedure for verifying host keys before 1686 accepting the RSA key. 1687 1688 This can be circumvented by setting the "HostKeyAlgorithms" 1689 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1690 command line. 1691 1692 Please note that the sequence of keys offered for 1693 authentication has been changed as well. You may want to 1694 specify IdentityFile in a different order to revert this 1695 behavior. 1696 169720080713: 1698 The sio(4) driver has been removed from the i386 and amd64 1699 kernel configuration files. This means uart(4) is now the 1700 default serial port driver on those platforms as well. 1701 1702 To prevent collisions with the sio(4) driver, the uart(4) driver 1703 uses different names for its device nodes. This means the 1704 onboard serial port will now most likely be called "ttyu0" 1705 instead of "ttyd0". You may need to reconfigure applications to 1706 use the new device names. 1707 1708 When using the serial port as a boot console, be sure to update 1709 /boot/device.hints and /etc/ttys before booting the new kernel. 1710 If you forget to do so, you can still manually specify the hints 1711 at the loader prompt: 1712 1713 set hint.uart.0.at="isa" 1714 set hint.uart.0.port="0x3F8" 1715 set hint.uart.0.flags="0x10" 1716 set hint.uart.0.irq="4" 1717 boot -s 1718 171920080609: 1720 The gpt(8) utility has been removed. Use gpart(8) to partition 1721 disks instead. 1722 172320080603: 1724 The version that Linuxulator emulates was changed from 2.4.2 1725 to 2.6.16. If you experience any problems with Linux binaries 1726 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1727 if it fixes the problem contact emulation mailing list. 1728 172920080525: 1730 ISDN4BSD (I4B) was removed from the src tree. You may need to 1731 update a your kernel configuration and remove relevant entries. 1732 173320080509: 1734 I have checked in code to support multiple routing tables. 1735 See the man pages setfib(1) and setfib(2). 1736 This is a hopefully backwards compatible version, 1737 but to make use of it you need to compile your kernel 1738 with options ROUTETABLES=2 (or more up to 16). 1739 174020080420: 1741 The 802.11 wireless support was redone to enable multi-bss 1742 operation on devices that are capable. The underlying device 1743 is no longer used directly but instead wlanX devices are 1744 cloned with ifconfig. This requires changes to rc.conf files. 1745 For example, change: 1746 ifconfig_ath0="WPA DHCP" 1747 to 1748 wlans_ath0=wlan0 1749 ifconfig_wlan0="WPA DHCP" 1750 see rc.conf(5) for more details. In addition, mergemaster of 1751 /etc/rc.d is highly recommended. Simultaneous update of userland 1752 and kernel wouldn't hurt either. 1753 1754 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1755 modules were merged into the base wlan module. All references 1756 to these modules (e.g. in kernel config files) must be removed. 1757 175820080408: 1759 psm(4) has gained write(2) support in native operation level. 1760 Arbitrary commands can be written to /dev/psm%d and status can 1761 be read back from it. Therefore, an application is responsible 1762 for status validation and error recovery. It is a no-op in 1763 other operation levels. 1764 176520080312: 1766 Support for KSE threading has been removed from the kernel. To 1767 run legacy applications linked against KSE libmap.conf may 1768 be used. The following libmap.conf may be used to ensure 1769 compatibility with any prior release: 1770 1771 libpthread.so.1 libthr.so.1 1772 libpthread.so.2 libthr.so.2 1773 libkse.so.3 libthr.so.3 1774 177520080301: 1776 The layout of struct vmspace has changed. This affects libkvm 1777 and any executables that link against libkvm and use the 1778 kvm_getprocs() function. In particular, but not exclusively, 1779 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1780 The effects are minimal, but it's advisable to upgrade world 1781 nonetheless. 1782 178320080229: 1784 The latest em driver no longer has support in it for the 1785 82575 adapter, this is now moved to the igb driver. The 1786 split was done to make new features that are incompatible 1787 with older hardware easier to do. 1788 178920080220: 1790 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1791 likewise the kernel option is now GEOM_LINUX_LVM. 1792 179320080211: 1794 The default NFS mount mode has changed from UDP to TCP for 1795 increased reliability. If you rely on (insecurely) NFS 1796 mounting across a firewall you may need to update your 1797 firewall rules. 1798 179920080208: 1800 Belatedly note the addition of m_collapse for compacting 1801 mbuf chains. 1802 180320080126: 1804 The fts(3) structures have been changed to use adequate 1805 integer types for their members and so to be able to cope 1806 with huge file trees. The old fts(3) ABI is preserved 1807 through symbol versioning in libc, so third-party binaries 1808 using fts(3) should still work, although they will not take 1809 advantage of the extended types. At the same time, some 1810 third-party software might fail to build after this change 1811 due to unportable assumptions made in its source code about 1812 fts(3) structure members. Such software should be fixed 1813 by its vendor or, in the worst case, in the ports tree. 1814 FreeBSD_version 800015 marks this change for the unlikely 1815 case that a portable fix is impossible. 1816 181720080123: 1818 To upgrade to -current after this date, you must be running 1819 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1820 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1821 182220071128: 1823 The ADAPTIVE_GIANT kernel option has been retired because its 1824 functionality is the default now. 1825 182620071118: 1827 The AT keyboard emulation of sunkbd(4) has been turned on 1828 by default. In order to make the special symbols of the Sun 1829 keyboards driven by sunkbd(4) work under X these now have 1830 to be configured the same way as Sun USB keyboards driven 1831 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1832 1833 Option "XkbLayout" "us" 1834 Option "XkbRules" "xorg" 1835 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1836 183720071024: 1838 It has been decided that it is desirable to provide ABI 1839 backwards compatibility to the FreeBSD 4/5/6 versions of the 1840 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1841 broken with the introduction of PCI domain support (see the 1842 20070930 entry). Unfortunately, this required the ABI of 1843 PCIOCGETCONF to be broken again in order to be able to 1844 provide backwards compatibility to the old version of that 1845 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1846 again. As for prominent ports this affects neither pciutils 1847 nor xorg-server this time, the hal port needs to be rebuilt 1848 however. 1849 185020071020: 1851 The misnamed kthread_create() and friends have been renamed 1852 to kproc_create() etc. Many of the callers already 1853 used kproc_start().. 1854 I will return kthread_create() and friends in a while 1855 with implementations that actually create threads, not procs. 1856 Renaming corresponds with version 800002. 1857 185820071010: 1859 RELENG_7 branched. 1860 1861COMMON ITEMS: 1862 1863 General Notes 1864 ------------- 1865 Avoid using make -j when upgrading. While generally safe, there are 1866 sometimes problems using -j to upgrade. If your upgrade fails with 1867 -j, please try again without -j. From time to time in the past there 1868 have been problems using -j with buildworld and/or installworld. This 1869 is especially true when upgrading between "distant" versions (eg one 1870 that cross a major release boundary or several minor releases, or when 1871 several months have passed on the -current branch). 1872 1873 Sometimes, obscure build problems are the result of environment 1874 poisoning. This can happen because the make utility reads its 1875 environment when searching for values for global variables. To run 1876 your build attempts in an "environmental clean room", prefix all make 1877 commands with 'env -i '. See the env(1) manual page for more details. 1878 1879 When upgrading from one major version to another it is generally best 1880 to upgrade to the latest code in the currently installed branch first, 1881 then do an upgrade to the new branch. This is the best-tested upgrade 1882 path, and has the highest probability of being successful. Please try 1883 this approach before reporting problems with a major version upgrade. 1884 1885 When upgrading a live system, having a root shell around before 1886 installing anything can help undo problems. Not having a root shell 1887 around can lead to problems if pam has changed too much from your 1888 starting point to allow continued authentication after the upgrade. 1889 1890 ZFS notes 1891 --------- 1892 When upgrading the boot ZFS pool to a new version, always follow 1893 these two steps: 1894 1895 1.) recompile and reinstall the ZFS boot loader and boot block 1896 (this is part of "make buildworld" and "make installworld") 1897 1898 2.) update the ZFS boot block on your boot drive 1899 1900 The following example updates the ZFS boot block on the first 1901 partition (freebsd-boot) of a GPT partitioned drive ad0: 1902 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1903 1904 Non-boot pools do not need these updates. 1905 1906 To build a kernel 1907 ----------------- 1908 If you are updating from a prior version of FreeBSD (even one just 1909 a few days old), you should follow this procedure. It is the most 1910 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1911 1912 make kernel-toolchain 1913 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1914 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1915 1916 To test a kernel once 1917 --------------------- 1918 If you just want to boot a kernel once (because you are not sure 1919 if it works, or if you want to boot a known bad kernel to provide 1920 debugging information) run 1921 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1922 nextboot -k testkernel 1923 1924 To just build a kernel when you know that it won't mess you up 1925 -------------------------------------------------------------- 1926 This assumes you are already running a CURRENT system. Replace 1927 ${arch} with the architecture of your machine (e.g. "i386", 1928 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1929 1930 cd src/sys/${arch}/conf 1931 config KERNEL_NAME_HERE 1932 cd ../compile/KERNEL_NAME_HERE 1933 make depend 1934 make 1935 make install 1936 1937 If this fails, go to the "To build a kernel" section. 1938 1939 To rebuild everything and install it on the current system. 1940 ----------------------------------------------------------- 1941 # Note: sometimes if you are running current you gotta do more than 1942 # is listed here if you are upgrading from a really old current. 1943 1944 <make sure you have good level 0 dumps> 1945 make buildworld 1946 make kernel KERNCONF=YOUR_KERNEL_HERE 1947 [1] 1948 <reboot in single user> [3] 1949 mergemaster -p [5] 1950 make installworld 1951 mergemaster -i [4] 1952 make delete-old [6] 1953 <reboot> 1954 1955 To cross-install current onto a separate partition 1956 -------------------------------------------------- 1957 # In this approach we use a separate partition to hold 1958 # current's root, 'usr', and 'var' directories. A partition 1959 # holding "/", "/usr" and "/var" should be about 2GB in 1960 # size. 1961 1962 <make sure you have good level 0 dumps> 1963 <boot into -stable> 1964 make buildworld 1965 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1966 <maybe newfs current's root partition> 1967 <mount current's root partition on directory ${CURRENT_ROOT}> 1968 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1969 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1970 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1971 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1972 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1973 <reboot into current> 1974 <do a "native" rebuild/install as described in the previous section> 1975 <maybe install compatibility libraries from ports/misc/compat*> 1976 <reboot> 1977 1978 1979 To upgrade in-place from stable to current 1980 ---------------------------------------------- 1981 <make sure you have good level 0 dumps> 1982 make buildworld [9] 1983 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1984 [1] 1985 <reboot in single user> [3] 1986 mergemaster -p [5] 1987 make installworld 1988 mergemaster -i [4] 1989 make delete-old [6] 1990 <reboot> 1991 1992 Make sure that you've read the UPDATING file to understand the 1993 tweaks to various things you need. At this point in the life 1994 cycle of current, things change often and you are on your own 1995 to cope. The defaults can also change, so please read ALL of 1996 the UPDATING entries. 1997 1998 Also, if you are tracking -current, you must be subscribed to 1999 freebsd-current@freebsd.org. Make sure that before you update 2000 your sources that you have read and understood all the recent 2001 messages there. If in doubt, please track -stable which has 2002 much fewer pitfalls. 2003 2004 [1] If you have third party modules, such as vmware, you 2005 should disable them at this point so they don't crash your 2006 system on reboot. 2007 2008 [3] From the bootblocks, boot -s, and then do 2009 fsck -p 2010 mount -u / 2011 mount -a 2012 cd src 2013 adjkerntz -i # if CMOS is wall time 2014 Also, when doing a major release upgrade, it is required that 2015 you boot into single user mode to do the installworld. 2016 2017 [4] Note: This step is non-optional. Failure to do this step 2018 can result in a significant reduction in the functionality of the 2019 system. Attempting to do it by hand is not recommended and those 2020 that pursue this avenue should read this file carefully, as well 2021 as the archives of freebsd-current and freebsd-hackers mailing lists 2022 for potential gotchas. The -U option is also useful to consider. 2023 See mergemaster(8) for more information. 2024 2025 [5] Usually this step is a noop. However, from time to time 2026 you may need to do this if you get unknown user in the following 2027 step. It never hurts to do it all the time. You may need to 2028 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2029 install) after the buildworld before this step if you last updated 2030 from current before 20130425 or from -stable before 20130430. 2031 2032 [6] This only deletes old files and directories. Old libraries 2033 can be deleted by "make delete-old-libs", but you have to make 2034 sure that no program is using those libraries anymore. 2035 2036 [8] In order to have a kernel that can run the 4.x binaries needed to 2037 do an installworld, you must include the COMPAT_FREEBSD4 option in 2038 your kernel. Failure to do so may leave you with a system that is 2039 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2040 required to run the 5.x binaries on more recent kernels. And so on 2041 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2042 2043 Make sure that you merge any new devices from GENERIC since the 2044 last time you updated your kernel config file. 2045 2046 [9] When checking out sources, you must include the -P flag to have 2047 cvs prune empty directories. 2048 2049 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2050 "?=" instead of the "=" assignment operator, so that buildworld can 2051 override the CPUTYPE if it needs to. 2052 2053 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2054 not on the command line, or in /etc/make.conf. buildworld will 2055 warn if it is improperly defined. 2056FORMAT: 2057 2058This file contains a list, in reverse chronological order, of major 2059breakages in tracking -current. It is not guaranteed to be a complete 2060list of such breakages, and only contains entries since October 10, 2007. 2061If you need to see UPDATING entries from before that date, you will need 2062to fetch an UPDATING file from an older FreeBSD release. 2063 2064Copyright information: 2065 2066Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2067 2068Redistribution, publication, translation and use, with or without 2069modification, in full or in part, in any form or format of this 2070document are permitted without further permission from the author. 2071 2072THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2073IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2074WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2075DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2076INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2077(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2078SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2079HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2080STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2081IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2082POSSIBILITY OF SUCH DAMAGE. 2083 2084Contact Warner Losh if you have any questions about your use of 2085this document. 2086 2087$FreeBSD$ 2088