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 3420140128: 35 The libelf and libdwarf libraries have been updated to newer 36 versions from upstream. Shared library version numbers for 37 these two libraries were bumped. Any ports or binaries 38 requiring these two libraries should be recompiled. 39 __FreeBSD_version is bumped to 1100006. 40 4120140110: 42 If a Makefile in a tests/ directory was auto-generating a Kyuafile 43 instead of providing an explicit one, this would prevent such 44 Makefile from providing its own Kyuafile in the future during 45 NO_CLEAN builds. This has been fixed in the Makefiles but manual 46 intervention is needed to clean an objdir if you use NO_CLEAN: 47 # find /usr/obj -name Kyuafile | xargs rm -f 48 4920131213: 50 The behavior of gss_pseudo_random() for the krb5 mechanism 51 has changed, for applications requesting a longer random string 52 than produced by the underlying enctype's pseudo-random() function. 53 In particular, the random string produced from a session key of 54 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 55 be different at the 17th octet and later, after this change. 56 The counter used in the PRF+ construction is now encoded as a 57 big-endian integer in accordance with RFC 4402. 58 __FreeBSD_version is bumped to 1100004. 59 6020131108: 61 The WITHOUT_ATF build knob has been removed and its functionality 62 has been subsumed into the more generic WITHOUT_TESTS. If you were 63 using the former to disable the build of the ATF libraries, you 64 should change your settings to use the latter. 65 6620131025: 67 The default version of mtree is nmtree which is obtained from 68 NetBSD. The output is generally the same, but may vary 69 slightly. If you found you need identical output adding 70 "-F freebsd9" to the command line should do the trick. For the 71 time being, the old mtree is available as fmtree. 72 7320131014: 74 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 75 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 76 1.1.4_8 and verify bsdyml not linked in, before running "make 77 delete-old-libs": 78 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 79 or 80 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 81 8220131010: 83 The rc.d/jail script has been updated to support jail(8) 84 configuration file. The "jail_<jname>_*" rc.conf(5) variables 85 for per-jail configuration are automatically converted to 86 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 87 This is transparently backward compatible. See below about some 88 incompatibilities and rc.conf(5) manual page for more details. 89 90 These variables are now deprecated in favor of jail(8) configuration 91 file. One can use "rc.d/jail config <jname>" command to generate 92 a jail(8) configuration file in /var/run/jail.<jname>.conf without 93 running the jail(8) utility. The default pathname of the 94 configuration file is /etc/jail.conf and can be specified by 95 using $jail_conf or $jail_<jname>_conf variables. 96 97 Please note that jail_devfs_ruleset accepts an integer at 98 this moment. Please consider to rewrite the ruleset name 99 with an integer. 100 10120130930: 102 BIND has been removed from the base system. If all you need 103 is a local resolver, simply enable and start the local_unbound 104 service instead. Otherwise, several versions of BIND are 105 available in the ports tree. The dns/bind99 port is one example. 106 107 With this change, nslookup(1) and dig(1) are no longer in the base 108 system. Users should instead use host(1) and drill(1) which are 109 in the base system. Alternatively, nslookup and dig can 110 be obtained by installing the dns/bind-tools port. 111 11220130916: 113 With the addition of unbound(8), a new unbound user is now 114 required during installworld. "mergemaster -p" can be used to 115 add the user prior to installworld, as documented in the handbook. 116 11720130911: 118 OpenSSH is now built with DNSSEC support, and will by default 119 silently trust signed SSHFP records. This can be controlled with 120 the VerifyHostKeyDNS client configuration setting. DNSSEC support 121 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 122 12320130906: 124 The GNU Compiler Collection and C++ standard library (libstdc++) 125 are no longer built by default on platforms where clang is the system 126 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 127 options in src.conf. 128 12920130905: 130 The PROCDESC kernel option is now part of the GENERIC kernel 131 configuration and is required for the rwhod(8) to work. 132 If you are using custom kernel configuration, you should include 133 'options PROCDESC'. 134 13520130905: 136 The API and ABI related to the Capsicum framework was modified 137 in backward incompatible way. The userland libraries and programs 138 have to be recompiled to work with the new kernel. This includes the 139 following libraries and programs, but the whole buildworld is 140 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 141 kdump, procstat, rwho, rwhod, uniq. 142 14320130903: 144 AES-NI intrinsic support has been added to gcc. The AES-NI module 145 has been updated to use this support. A new gcc is required to build 146 the aesni module on both i386 and amd64. 147 14820130821: 149 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 150 Thus "device padlock_rng" and "device rdrand_rng" should be 151 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 152 15320130813: 154 WITH_ICONV has been split into two feature sets. WITH_ICONV now 155 enables just the iconv* functionality and is now on by default. 156 WITH_LIBICONV_COMPAT enables the libiconv api and link time 157 compatability. Set WITHOUT_ICONV to build the old way. 158 If you have been using WITH_ICONV before, you will very likely 159 need to turn on WITH_LIBICONV_COMPAT. 160 16120130806: 162 INVARIANTS option now enables DEBUG for code with OpenSolaris and 163 Illumos origin, including ZFS. If you have INVARIANTS in your 164 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 165 explicitly. 166 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 167 locks if WITNESS option was set. Because that generated a lot of 168 witness(9) reports and all of them were believed to be false 169 positives, this is no longer done. New option OPENSOLARIS_WITNESS 170 can be used to achieve the previous behavior. 171 17220130806: 173 Timer values in IPv6 data structures now use time_uptime instead 174 of time_second. Although this is not a user-visible functional 175 change, userland utilities which directly use them---ndp(8), 176 rtadvd(8), and rtsold(8) in the base system---need to be updated 177 to r253970 or later. 178 17920130802: 180 find -delete can now delete the pathnames given as arguments, 181 instead of only files found below them or if the pathname did 182 not contain any slashes. Formerly, the following error message 183 would result: 184 185 find: -delete: <path>: relative path potentially not safe 186 187 Deleting the pathnames given as arguments can be prevented 188 without error messages using -mindepth 1 or by changing 189 directory and passing "." as argument to find. This works in the 190 old as well as the new version of find. 191 19220130726: 193 Behavior of devfs rules path matching has been changed. 194 Pattern is now always matched against fully qualified devfs 195 path and slash characters must be explicitly matched by 196 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 197 subdirectories must be reviewed. 198 19920130716: 200 The default ARM ABI has changed to the ARM EABI. The old ABI is 201 incompatible with the ARM EABI and all programs and modules will 202 need to be rebuilt to work with a new kernel. 203 204 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 205 206 NOTE: Support for the old ABI will be removed in the future and 207 users are advised to upgrade. 208 20920130709: 210 pkg_install has been disconnected from the build if you really need it 211 you should add WITH_PKGTOOLS in your src.conf(5). 212 21320130709: 214 Most of network statistics structures were changed to be able 215 keep 64-bits counters. Thus all tools, that work with networking 216 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 217 21820130629: 219 Fix targets that run multiple make's to use && rather than ; 220 so that subsequent steps depend on success of previous. 221 222 NOTE: if building 'universe' with -j* on stable/8 or stable/9 223 it would be better to start the build using bmake, to avoid 224 overloading the machine. 225 22620130618: 227 Fix a bug that allowed a tracing process (e.g. gdb) to write 228 to a memory-mapped file in the traced process's address space 229 even if neither the traced process nor the tracing process had 230 write access to that file. 231 23220130615: 233 CVS has been removed from the base system. An exact copy 234 of the code is available from the devel/cvs port. 235 23620130613: 237 Some people report the following error after the switch to bmake: 238 239 make: illegal option -- J 240 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 241 ... 242 *** [buildworld] Error code 2 243 244 this likely due to an old instance of make in 245 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 246 which src/Makefile will use that blindly, if it exists, so if 247 you see the above error: 248 249 rm -rf `make -V MAKEPATH` 250 251 should resolve it. 252 25320130516: 254 Use bmake by default. 255 Whereas before one could choose to build with bmake via 256 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 257 make. The goal is to remove these knobs for 10-RELEASE. 258 259 It is worth noting that bmake (like gmake) treats the command 260 line as the unit of failure, rather than statements within the 261 command line. Thus '(cd some/where && dosomething)' is safer 262 than 'cd some/where; dosomething'. The '()' allows consistent 263 behavior in parallel build. 264 26520130429: 266 Fix a bug that allows NFS clients to issue READDIR on files. 267 26820130426: 269 The WITHOUT_IDEA option has been removed because 270 the IDEA patent expired. 271 27220130426: 273 The sysctl which controls TRIM support under ZFS has been renamed 274 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 275 enabled by default. 276 27720130425: 278 The mergemaster command now uses the default MAKEOBJDIRPREFIX 279 rather than creating it's own in the temporary directory in 280 order allow access to bootstrapped versions of tools such as 281 install and mtree. When upgrading from version of FreeBSD where 282 the install command does not support -l, you will need to 283 install a new mergemaster command if mergemaster -p is required. 284 This can be accomplished with the command (cd src/usr.sbin/mergemaster 285 && make install). 286 28720130404: 288 Legacy ATA stack, disabled and replaced by new CAM-based one since 289 FreeBSD 9.0, completely removed from the sources. Kernel modules 290 atadisk and atapi*, user-level tools atacontrol and burncd are 291 removed. Kernel option `options ATA_CAM` is now permanently enabled 292 and removed. 293 29420130319: 295 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 296 and socketpair(2). Software, in particular Kerberos, may 297 automatically detect and use these during building. The resulting 298 binaries will not work on older kernels. 299 30020130308: 301 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 302 information, see the respective 20130304 entry). 303 30420130304: 305 Recent commits to callout(9) changed the size of struct callout, 306 so the KBI is probably heavily disturbed. Also, some functions 307 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 308 by macros. Every kernel module using it won't load, so rebuild 309 is requested. 310 311 The ctl device has been re-enabled in GENERIC for i386 and amd64, 312 but does not initialize by default (because of the new CTL_DISABLE 313 option) to save memory. To re-enable it, remove the CTL_DISABLE 314 option from the kernel config file or set kern.cam.ctl.disable=0 315 in /boot/loader.conf. 316 31720130301: 318 The ctl device has been disabled in GENERIC for i386 and amd64. 319 This was done due to the extra memory being allocated at system 320 initialisation time by the ctl driver which was only used if 321 a CAM target device was created. This makes a FreeBSD system 322 unusable on 128MB or less of RAM. 323 32420130208: 325 A new compression method (lz4) has been merged to -HEAD. Please 326 refer to zpool-features(7) for more information. 327 328 Please refer to the "ZFS notes" section of this file for information 329 on upgrading boot ZFS pools. 330 33120130129: 332 A BSD-licensed patch(1) variant has been added and is installed 333 as bsdpatch, being the GNU version the default patch. 334 To inverse the logic and use the BSD-licensed one as default, 335 while having the GNU version installed as gnupatch, rebuild 336 and install world with the WITH_BSD_PATCH knob set. 337 33820130121: 339 Due to the use of the new -l option to install(1) during build 340 and install, you must take care not to directly set the INSTALL 341 make variable in your /etc/make.conf, /etc/src.conf, or on the 342 command line. If you wish to use the -C flag for all installs 343 you may be able to add INSTALL+=-C to /etc/make.conf or 344 /etc/src.conf. 345 34620130118: 347 The install(1) option -M has changed meaning and now takes an 348 argument that is a file or path to append logs to. In the 349 unlikely event that -M was the last option on the command line 350 and the command line contained at least two files and a target 351 directory the first file will have logs appended to it. The -M 352 option served little practical purpose in the last decade so its 353 use is expected to be extremely rare. 354 35520121223: 356 After switching to Clang as the default compiler some users of ZFS 357 on i386 systems started to experience stack overflow kernel panics. 358 Please consider using 'options KSTACK_PAGES=4' in such configurations. 359 36020121222: 361 GEOM_LABEL now mangles label names read from file system metadata. 362 Mangling affect labels containing spaces, non-printable characters, 363 '%' or '"'. Device names in /etc/fstab and other places may need to 364 be updated. 365 36620121217: 367 By default, only the 10 most recent kernel dumps will be saved. To 368 restore the previous behaviour (no limit on the number of kernel dumps 369 stored in the dump directory) add the following line to /etc/rc.conf: 370 371 savecore_flags="" 372 37320121201: 374 With the addition of auditdistd(8), a new auditdistd user is now 375 required during installworld. "mergemaster -p" can be used to 376 add the user prior to installworld, as documented in the handbook. 377 37820121117: 379 The sin6_scope_id member variable in struct sockaddr_in6 is now 380 filled by the kernel before passing the structure to the userland via 381 sysctl or routing socket. This means the KAME-specific embedded scope 382 id in sin6_addr.s6_addr[2] is always cleared in userland application. 383 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 384 __FreeBSD_version is bumped to 1000025. 385 38620121105: 387 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 388 This means that the world and kernel will be compiled with clang 389 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 390 and /usr/bin/cpp. To disable this behavior and revert to building 391 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 392 of current may need to bootstrap WITHOUT_CLANG first if the clang 393 build fails (its compatibility window doesn't extend to the 9 stable 394 branch point). 395 39620121102: 397 The IPFIREWALL_FORWARD kernel option has been removed. Its 398 functionality now turned on by default. 399 40020121023: 401 The ZERO_COPY_SOCKET kernel option has been removed and 402 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 403 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 404 mechanism which is not safe and may result in kernel crashes. 405 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 406 driver supports disposeable external page sized mbuf storage. 407 Proper replacements for both zero-copy mechanisms are under 408 consideration and will eventually lead to complete removal 409 of the two kernel options. 410 41120121023: 412 The IPv4 network stack has been converted to network byte 413 order. The following modules need to be recompiled together 414 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 415 pf(4), ipfw(4), ng_ipfw(4), stf(4). 416 41720121022: 418 Support for non-MPSAFE filesystems was removed from VFS. The 419 VFS_VERSION was bumped, all filesystem modules shall be 420 recompiled. 421 42220121018: 423 All the non-MPSAFE filesystems have been disconnected from 424 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 425 portalfs, smbfs, xfs. 426 42720121016: 428 The interface cloning API and ABI has changed. The following 429 modules need to be recompiled together with kernel: 430 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 431 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 432 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 433 43420121015: 435 The sdhci driver was split in two parts: sdhci (generic SD Host 436 Controller logic) and sdhci_pci (actual hardware driver). 437 No kernel config modifications are required, but if you 438 load sdhc as a module you must switch to sdhci_pci instead. 439 44020121014: 441 Import the FUSE kernel and userland support into base system. 442 44320121013: 444 The GNU sort(1) program has been removed since the BSD-licensed 445 sort(1) has been the default for quite some time and no serious 446 problems have been reported. The corresponding WITH_GNU_SORT 447 knob has also gone. 448 44920121006: 450 The pfil(9) API/ABI for AF_INET family has been changed. Packet 451 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 452 with new kernel. 453 45420121001: 455 The net80211(4) ABI has been changed to allow for improved driver 456 PS-POLL and power-save support. All wireless drivers need to be 457 recompiled to work with the new kernel. 458 45920120913: 460 The random(4) support for the VIA hardware random number 461 generator (`PADLOCK') is no longer enabled unconditionally. 462 Add the padlock_rng device in the custom kernel config if 463 needed. The GENERIC kernels on i386 and amd64 do include the 464 device, so the change only affects the custom kernel 465 configurations. 466 46720120908: 468 The pf(4) packet filter ABI has been changed. pfctl(8) and 469 snmp_pf module need to be recompiled to work with new kernel. 470 47120120828: 472 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 473 to -HEAD. Pools that have empty_bpobj in active state can not be 474 imported read-write with ZFS implementations that do not support 475 this feature. For more information read the zpool-features(5) 476 manual page. 477 47820120727: 479 The sparc64 ZFS loader has been changed to no longer try to auto- 480 detect ZFS providers based on diskN aliases but now requires these 481 to be explicitly listed in the OFW boot-device environment variable. 482 48320120712: 484 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 485 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 486 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 487 48820120712: 489 The following sysctls and tunables have been renamed for consistency 490 with other variables: 491 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 492 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 493 49420120628: 495 The sort utility has been replaced with BSD sort. For now, GNU sort 496 is also available as "gnusort" or the default can be set back to 497 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 498 installed as "bsdsort". 499 50020120611: 501 A new version of ZFS (pool version 5000) has been merged to -HEAD. 502 Starting with this version the old system of ZFS pool versioning 503 is superseded by "feature flags". This concept enables forward 504 compatibility against certain future changes in functionality of ZFS 505 pools. The first read-only compatible "feature flag" for ZFS pools 506 is named "com.delphix:async_destroy". For more information 507 read the new zpool-features(5) manual page. 508 Please refer to the "ZFS notes" section of this file for information 509 on upgrading boot ZFS pools. 510 51120120417: 512 The malloc(3) implementation embedded in libc now uses sources imported 513 as contrib/jemalloc. The most disruptive API change is to 514 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 515 delete it prior to installworld, and optionally re-create it using the 516 new format after rebooting. See malloc.conf(5) for details 517 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 518 NAMESPACE section). 519 52020120328: 521 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 522 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 523 now spelled mips. This is to aid compatibility with third-party 524 software that expects this naming scheme in uname(3). Little-endian 525 settings are unchanged. If you are updating a big-endian mips64 machine 526 from before this change, you may need to set MACHINE_ARCH=mips64 in 527 your environment before the new build system will recognize your machine. 528 52920120306: 530 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 531 platforms. 532 53320120229: 534 Now unix domain sockets behave "as expected" on nullfs(5). Previously 535 nullfs(5) did not pass through all behaviours to the underlying layer, 536 as a result if we bound to a socket on the lower layer we could connect 537 only to the lower path; if we bound to the upper layer we could connect 538 only to the upper path. The new behavior is one can connect to both the 539 lower and the upper paths regardless what layer path one binds to. 540 54120120211: 542 The getifaddrs upgrade path broken with 20111215 has been restored. 543 If you have upgraded in between 20111215 and 20120209 you need to 544 recompile libc again with your kernel. You still need to recompile 545 world to be able to configure CARP but this restriction already 546 comes from 20111215. 547 54820120114: 549 The set_rcvar() function has been removed from /etc/rc.subr. All 550 base and ports rc.d scripts have been updated, so if you have a 551 port installed with a script in /usr/local/etc/rc.d you can either 552 hand-edit the rcvar= line, or reinstall the port. 553 554 An easy way to handle the mass-update of /etc/rc.d: 555 rm /etc/rc.d/* && mergemaster -i 556 55720120109: 558 panic(9) now stops other CPUs in the SMP systems, disables interrupts 559 on the current CPU and prevents other threads from running. 560 This behavior can be reverted using the kern.stop_scheduler_on_panic 561 tunable/sysctl. 562 The new behavior can be incompatible with kern.sync_on_panic. 563 56420111215: 565 The carp(4) facility has been changed significantly. Configuration 566 of the CARP protocol via ifconfig(8) has changed, as well as format 567 of CARP events submitted to devd(8) has changed. See manual pages 568 for more information. The arpbalance feature of carp(4) is currently 569 not supported anymore. 570 571 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 572 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 573 need to be recompiled. 574 57520111122: 576 The acpi_wmi(4) status device /dev/wmistat has been renamed to 577 /dev/wmistat0. 578 57920111108: 580 The option VFS_ALLOW_NONMPSAFE option has been added in order to 581 explicitely support non-MPSAFE filesystems. 582 It is on by default for all supported platform at this present 583 time. 584 58520111101: 586 The broken amd(4) driver has been replaced with esp(4) in the amd64, 587 i386 and pc98 GENERIC kernel configuration files. 588 58920110930: 590 sysinstall has been removed 591 59220110923: 593 The stable/9 branch created in subversion. This corresponds to the 594 RELENG_9 branch in CVS. 595 59620110913: 597 This commit modifies vfs_register() so that it uses a hash 598 calculation to set vfc_typenum, which is enabled by default. 599 The first time a system is booted after this change, the 600 vfc_typenum values will change for all file systems. The 601 main effect of this is a change to the NFS server file handles 602 for file systems that use vfc_typenum in their fsid, such as ZFS. 603 It will, however, prevent vfc_typenum from changing when file 604 systems are loaded in a different order for subsequent reboots. 605 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 606 until you are ready to remount all NFS clients after a reboot. 607 60820110828: 609 Bump the shared library version numbers for libraries that 610 do not use symbol versioning, have changed the ABI compared 611 to stable/8 and which shared library version was not bumped. 612 Done as part of 9.0-RELEASE cycle. 613 61420110815: 615 During the merge of Capsicum features, the fget(9) KPI was modified. 616 This may require the rebuilding of out-of-tree device drivers -- 617 issues have been reported specifically with the nVidia device driver. 618 __FreeBSD_version is bumped to 900041. 619 620 Also, there is a period between 20110811 and 20110814 where the 621 special devices /dev/{stdin,stdout,stderr} did not work correctly. 622 Building world from a kernel during that window may not work. 623 62420110628: 625 The packet filter (pf) code has been updated to OpenBSD 4.5. 626 You need to update userland tools to be in sync with kernel. 627 This update breaks backward compatibility with earlier pfsync(4) 628 versions. Care must be taken when updating redundant firewall setups. 629 63020110608: 631 The following sysctls and tunables are retired on x86 platforms: 632 machdep.hlt_cpus 633 machdep.hlt_logical_cpus 634 The following sysctl is retired: 635 machdep.hyperthreading_allowed 636 The sysctls were supposed to provide a way to dynamically offline and 637 online selected CPUs on x86 platforms, but the implementation has not 638 been reliable especially with SCHED_ULE scheduler. 639 machdep.hyperthreading_allowed tunable is still available to ignore 640 hyperthreading CPUs at OS level. 641 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 642 where X is an APIC ID of a CPU. Be advised, though, that disabling 643 CPUs in non-uniform fashion will result in non-uniform topology and 644 may lead to sub-optimal system performance with SCHED_ULE, which is 645 a default scheduler. 646 64720110607: 648 cpumask_t type is retired and cpuset_t is used in order to describe 649 a mask of CPUs. 650 65120110531: 652 Changes to ifconfig(8) for dynamic address family detection mandate 653 that you are running a kernel of 20110525 or later. Make sure to 654 follow the update procedure to boot a new kernel before installing 655 world. 656 65720110513: 658 Support for sun4v architecture is officially dropped 659 66020110503: 661 Several KPI breaking changes have been committed to the mii(4) layer, 662 the PHY drivers and consequently some Ethernet drivers using mii(4). 663 This means that miibus.ko and the modules of the affected Ethernet 664 drivers need to be recompiled. 665 666 Note to kernel developers: Given that the OUI bit reversion problem 667 was fixed as part of these changes all mii(4) commits related to OUIs, 668 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 669 handling, no longer can be merged verbatim to stable/8 and previous 670 branches. 671 67220110430: 673 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 674 into their kernel configurations along with 'device pci'. 675 67620110427: 677 The default NFS client is now the new NFS client, so fstype "newnfs" 678 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 679 Although mounts via fstype "nfs" will usually work without userland 680 changes, it is recommended that the mount(8) and mount_nfs(8) 681 commands be rebuilt from sources and that a link to mount_nfs called 682 mount_oldnfs be created. The new client is compiled into the 683 kernel with "options NFSCL" and this is needed for diskless root 684 file systems. The GENERIC kernel configs have been changed to use 685 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 686 To use the regular/old client, you can "mount -t oldnfs ...". For 687 a diskless root file system, you must also include a line like: 688 689 vfs.root.mountfrom="oldnfs:" 690 691 in the boot/loader.conf on the root fs on the NFS server to make 692 a diskless root fs use the old client. 693 69420110424: 695 The GENERIC kernels for all architectures now default to the new 696 CAM-based ATA stack. It means that all legacy ATA drivers were 697 removed and replaced by respective CAM drivers. If you are using 698 ATA device names in /etc/fstab or other places, make sure to update 699 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 700 where 'Y's are the sequential numbers starting from zero for each type 701 in order of detection, unless configured otherwise with tunables, 702 see cam(4)). There will be symbolic links created in /dev/ to map 703 old adX devices to the respective adaY. They should provide basic 704 compatibility for file systems mounting in most cases, but they do 705 not support old user-level APIs and do not have respective providers 706 in GEOM. Consider using updated management tools with new device names. 707 708 It is possible to load devices ahci, ata, siis and mvs as modules, 709 but option ATA_CAM should remain in kernel configuration to make ata 710 module work as CAM driver supporting legacy ATA controllers. Device ata 711 still can be used in modular fashion (atacore + ...). Modules atadisk 712 and atapi* are not used and won't affect operation in ATA_CAM mode. 713 Note that to use CAM-based ATA kernel should include CAM devices 714 scbus, pass, da (or explicitly ada), cd and optionally others. All of 715 them are parts of the cam module. 716 717 ataraid(4) functionality is now supported by the RAID GEOM class. 718 To use it you can load geom_raid kernel module and use graid(8) tool 719 for management. Instead of /dev/arX device names, use /dev/raid/rX. 720 721 No kernel config options or code have been removed, so if a problem 722 arises, please report it and optionally revert to the old ATA stack. 723 In order to do it you can remove from the kernel config: 724 options ATA_CAM 725 device ahci 726 device mvs 727 device siis 728 , and instead add back: 729 device atadisk # ATA disk drives 730 device ataraid # ATA RAID drives 731 device atapicd # ATAPI CDROM drives 732 device atapifd # ATAPI floppy drives 733 device atapist # ATAPI tape drives 734 73520110423: 736 The default NFS server has been changed to the new server, which 737 was referred to as the experimental server. If you need to switch 738 back to the old NFS server, you must now put the "-o" option on 739 both the mountd and nfsd commands. This can be done using the 740 mountd_flags and nfs_server_flags rc.conf variables until an 741 update to the rc scripts is committed, which is coming soon. 742 74320110418: 744 The GNU Objective-C runtime library (libobjc), and other Objective-C 745 related components have been removed from the base system. If you 746 require an Objective-C library, please use one of the available ports. 747 74820110331: 749 ath(4) has been split into bus- and device- modules. if_ath contains 750 the HAL, the TX rate control and the network device code. if_ath_pci 751 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 752 contains the AHB glue. Users need to load both if_ath_pci and if_ath 753 in order to use ath on everything else. 754 755 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 756 need to load if_ath and if_ath_pci for ath(4) operation. 757 75820110314: 759 As part of the replacement of sysinstall, the process of building 760 release media has changed significantly. For details, please re-read 761 release(7), which has been updated to reflect the new build process. 762 76320110218: 764 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 765 is the last available version under GPLv2. It brings a number of new 766 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 767 4.1 and SSE 4.2), better support for powerpc64, a number of new 768 directives, and lots of other small improvements. See the ChangeLog 769 file in contrib/binutils for the full details. 770 77120110218: 772 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 773 compliant, and will now use half of hash for authentication. 774 This will break interoperability with all stacks (including all 775 actual FreeBSD versions) who implement 776 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 777 authentication). 778 The only workaround with such peers is to use another HMAC 779 algorithm for IPsec ("phase 2") authentication. 780 78120110207: 782 Remove the uio_yield prototype and symbol. This function has 783 been misnamed since it was introduced and should not be 784 globally exposed with this name. The equivalent functionality 785 is now available using kern_yield(curthread->td_user_pri). 786 The function remains undocumented. 787 78820110112: 789 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 790 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 791 for scalar sysctls is defined but disabled. Code that needs 792 UQUAD to pass the type checking that must compile on older 793 systems where the define is not present can check against 794 __FreeBSD_version >= 900030. 795 796 The system dialog(1) has been replaced with a new version previously 797 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 798 with the previous version, but the libdialog associated with it has 799 a largely incompatible API. As such, the original version of libdialog 800 will be kept temporarily as libodialog, until its base system consumers 801 are replaced or updated. Bump __FreeBSD_version to 900030. 802 80320110103: 804 If you are trying to run make universe on a -stable system, and you get 805 the following warning: 806 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 807 unknown. config(8) likely too old." 808 or something similar to it, then you must upgrade your -stable system 809 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 810 stable/8) or build the config from the latest stable/8 branch and 811 install it on your system. 812 813 Prior to this date, building a current universe on 8-stable system from 814 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 815 error in the first kernel build phase. A new config on those old 816 systems will fix that problem for older versions of -current. 817 81820101228: 819 The TCP stack has been modified to allow Khelp modules to interact with 820 it via helper hook points and store per-connection data in the TCP 821 control block. Bump __FreeBSD_version to 900029. User space tools that 822 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 823 be recompiled. 824 82520101114: 826 Generic IEEE 802.3 annex 31B full duplex flow control support has been 827 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 828 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 829 to take advantage of it instead of using custom implementations. This 830 means that these drivers now no longer unconditionally advertise 831 support for flow control but only do so if flow control is a selected 832 media option. This was implemented in the generic support that way in 833 order to allow flow control to be switched on and off via ifconfig(8) 834 with the PHY specific default to typically off in order to protect 835 from unwanted effects. Consequently, if you used flow control with 836 one of the above mentioned drivers you now need to explicitly enable 837 it, for example via: 838 ifconfig bge0 media auto mediaopt flowcontrol 839 840 Along with the above mentioned changes generic support for setting 841 1000baseT master mode also has been added and brgphy(4), ciphy(4), 842 e1000phy(4) as well as ip1000phy(4) have been converted to take 843 advantage of it. This means that these drivers now no longer take the 844 link0 parameter for selecting master mode but the master media option 845 has to be used instead, for example like in the following: 846 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 847 848 Selection of master mode now is also available with all other PHY 849 drivers supporting 1000baseT. 850 85120101111: 852 The TCP stack has received a significant update to add support for 853 modularised congestion control and generally improve the clarity of 854 congestion control decisions. Bump __FreeBSD_version to 900025. User 855 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 856 sockstat) need to be recompiled. 857 85820101002: 859 The man(1) utility has been replaced by a new version that no longer 860 uses /etc/manpath.config. Please consult man.conf(5) for how to 861 migrate local entries to the new format. 862 86320100928: 864 The copyright strings printed by login(1) and sshd(8) at the time of a 865 new connection have been removed to follow other operating systems and 866 upstream sshd. 867 86820100915: 869 A workaround for a fixed ld bug has been removed in kernel code, 870 so make sure that your system ld is built from sources after 871 revision 210245 from 2010-07-19 (r211583 if building head kernel 872 on stable/8, r211584 for stable/7; both from 2010-08-21). 873 A symptom of incorrect ld version is different addresses for 874 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 875 87620100913: 877 The $ipv6_prefer variable in rc.conf(5) has been split into 878 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 879 880 The $ip6addrctl_policy is a variable to choose a pre-defined 881 address selection policy set by ip6addrctl(8). A value 882 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 883 default is "AUTO". 884 885 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 886 flag (see an entry of 20090926) is set on an interface with no 887 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 888 security reason. If you want IPv6 link-local address on all 889 interfaces by default, set this to "YES". 890 891 The old ipv6_prefer="YES" is equivalent to 892 ipv6_activate_all_interfaces="YES" and 893 ip6addrctl_policy="ipv6_prefer". 894 89520100913: 896 DTrace has grown support for userland tracing. Due to this, DTrace is 897 now i386 and amd64 only. 898 dtruss(1) is now installed by default on those systems and a new 899 kernel module is needed for userland tracing: fasttrap. 900 No changes to your kernel config file are necessary to enable 901 userland tracing, but you might consider adding 'STRIP=' and 902 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 903 to have informative userland stack traces in DTrace (ustack). 904 90520100725: 906 The acpi_aiboost(4) driver has been removed in favor of the new 907 aibs(4) driver. You should update your kernel configuration file. 908 90920100722: 910 BSD grep has been imported to the base system and it is built by 911 default. It is completely BSD licensed, highly GNU-compatible, uses 912 less memory than its GNU counterpart and has a small codebase. 913 However, it is slower than its GNU counterpart, which is mostly 914 noticeable for larger searches, for smaller ones it is measurable 915 but not significant. The reason is complex, the most important factor 916 is that we lack a modern and efficient regex library and GNU 917 overcomes this by optimizing the searches internally. Future work 918 on improving the regex performance is planned, for the meantime, 919 users that need better performance, can build GNU grep instead by 920 setting the WITH_GNU_GREP knob. 921 92220100713: 923 Due to the import of powerpc64 support, all existing powerpc kernel 924 configuration files must be updated with a machine directive like this: 925 machine powerpc powerpc 926 927 In addition, an updated config(8) is required to build powerpc kernels 928 after this change. 929 93020100713: 931 A new version of ZFS (version 15) has been merged to -HEAD. 932 This version uses a python library for the following subcommands: 933 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 934 For full functionality of these commands the following port must 935 be installed: sysutils/py-zfs 936 93720100429: 938 'vm_page's are now hashed by physical address to an array of mutexes. 939 Currently this is only used to serialize access to hold_count. Over 940 time the page queue mutex will be peeled away. This changes the size 941 of pmap on every architecture. And requires all callers of vm_page_hold 942 and vm_page_unhold to be updated. 943 94420100402: 945 WITH_CTF can now be specified in src.conf (not recommended, there 946 are some problems with static executables), make.conf (would also 947 affect ports which do not use GNU make and do not override the 948 compile targets) or in the kernel config (via "makeoptions 949 WITH_CTF=yes"). 950 When WITH_CTF was specified there before this was silently ignored, 951 so make sure that WITH_CTF is not used in places which could lead 952 to unwanted behavior. 953 95420100311: 955 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 956 to allow 32-bit compatibility on non-x86 platforms. All kernel 957 configurations on amd64 and ia64 platforms using these options must 958 be modified accordingly. 959 96020100113: 961 The utmp user accounting database has been replaced with utmpx, 962 the user accounting interface standardized by POSIX. 963 Unfortunately the semantics of utmp and utmpx don't match, 964 making it practically impossible to support both interfaces. 965 The user accounting database is used by tools like finger(1), 966 last(1), talk(1), w(1) and ac(8). 967 968 All applications in the base system use utmpx. This means only 969 local binaries (e.g. from the ports tree) may still use these 970 utmp database files. These applications must be rebuilt to make 971 use of utmpx. 972 973 After the system has been upgraded, it is safe to remove the old 974 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 975 assuming their contents is of no importance anymore. Old wtmp 976 databases can only be used by last(1) and ac(8) after they have 977 been converted to the new format using wtmpcvt(1). 978 97920100108: 980 Introduce the kernel thread "deadlock resolver" (which can be enabled 981 via the DEADLKRES option, see NOTES for more details) and the 982 sleepq_type() function for sleepqueues. 983 98420091202: 985 The rc.firewall and rc.firewall6 were unified, and 986 rc.firewall6 and rc.d/ip6fw were removed. 987 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 988 variables are obsoleted. Instead, the following new rc 989 variables are added to rc.d/ipfw: 990 991 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 992 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 993 firewall_simple_onet_ipv6, firewall_trusted_ipv6 994 995 The meanings correspond to the relevant IPv4 variables. 996 99720091125: 998 8.0-RELEASE. 999 100020091113: 1001 The default terminal emulation for syscons(4) has been changed 1002 from cons25 to xterm on all platforms except pc98. This means 1003 that the /etc/ttys file needs to be updated to ensure correct 1004 operation of applications on the console. 1005 1006 The terminal emulation style can be toggled per window by using 1007 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1008 options can be used to change the compile-time default back to 1009 cons25. 1010 1011 To prevent graphical artifacts, make sure the TERM environment 1012 variable is set to match the terminal emulation that is being 1013 performed by syscons(4). 1014 101520091109: 1016 The layout of the structure ieee80211req_scan_result has changed. 1017 Applications that require wireless scan results (e.g. ifconfig(8)) 1018 from net80211 need to be recompiled. 1019 1020 Applications such as wpa_supplicant(8) may require a full world 1021 build without using NO_CLEAN in order to get synchronized with the 1022 new structure. 1023 102420091025: 1025 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1026 There's one kernel module for each firmware. Adding "device iwnfw" 1027 to the kernel configuration file means including all three firmware 1028 images inside the kernel. If you want to include just the one for 1029 your wireless card, use the devices iwn4965fw, iwn5000fw or 1030 iwn5150fw. 1031 103220090926: 1033 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1034 into rc.d/netif. The changes are the following: 1035 1036 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1037 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1038 Note that both variables need the "inet6" keyword at the head. 1039 1040 Do not set $ipv6_network_interfaces manually if you do not 1041 understand what you are doing. It is not needed in most cases. 1042 1043 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1044 they are obsolete. 1045 1046 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1047 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1048 1049 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1050 all configured interfaces have "inet6 accept_rtadv" in the 1051 $ifconfig_IF_ipv6. These are for backward compatibility. 1052 1053 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1054 functionality of interfaces with no corresponding 1055 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1056 and the default address selection policy of ip6addrctl(8) 1057 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1058 Note that if you want to configure IPv6 functionality on the 1059 disabled interfaces after boot, first you need to clear the flag by 1060 using ifconfig(8) like: 1061 1062 ifconfig em0 inet6 -ifdisabled 1063 1064 If YES, the default address selection policy is set as 1065 IPv6-preferred. 1066 1067 The default value of $ipv6_prefer is NO. 1068 1069 4. If your system need to receive Router Advertisement messages, 1070 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1071 scripts automatically invoke rtsol(8) when the interface becomes 1072 UP. The Router Advertisement messages are used for SLAAC 1073 (State-Less Address AutoConfiguration). 1074 107520090922: 1076 802.11s D3.03 support was committed. This is incompatible with the 1077 previous code, which was based on D3.0. 1078 107920090912: 1080 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1081 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1082 control whether accepting Router Advertisement messages or not. 1083 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1084 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1085 The ifconfig(8) utility now supports these flags. 1086 108720090910: 1088 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1089 mount(8) and -a option for df(1) to see them. 1090 109120090825: 1092 The old tunable hw.bus.devctl_disable has been superseded by 1093 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1094 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1095 is 1000. 1096 109720090813: 1098 Remove the option STOP_NMI. The default action is now to use NMI only 1099 for KDB via the newly introduced function stop_cpus_hard() and 1100 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1101 110220090803: 1103 The stable/8 branch created in subversion. This corresponds to the 1104 RELENG_8 branch in CVS. 1105 110620090719: 1107 Bump the shared library version numbers for all libraries that do not 1108 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1109 __FreeBSD_version to 800105. 1110 111120090714: 1112 Due to changes in the implementation of virtual network stack support, 1113 all network-related kernel modules must be recompiled. As this change 1114 breaks the ABI, bump __FreeBSD_version to 800104. 1115 111620090713: 1117 The TOE interface to the TCP syncache has been modified to remove 1118 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1119 The cxgb driver is the only TOE consumer affected by this change, and 1120 needs to be recompiled along with the kernel. As this change breaks 1121 the ABI, bump __FreeBSD_version to 800103. 1122 112320090712: 1124 Padding has been added to struct tcpcb, sackhint and tcpstat in 1125 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1126 maintaining the ABI. However, this change breaks the ABI, so bump 1127 __FreeBSD_version to 800102. User space tools that rely on the size of 1128 any of these structs (e.g. sockstat) need to be recompiled. 1129 113020090630: 1131 The NFS_LEGACYRPC option has been removed along with the old kernel 1132 RPC implementation that this option selected. Kernel configurations 1133 may need to be adjusted. 1134 113520090629: 1136 The network interface device nodes at /dev/net/<interface> have been 1137 removed. All ioctl operations can be performed the normal way using 1138 routing sockets. The kqueue functionality can generally be replaced 1139 with routing sockets. 1140 114120090628: 1142 The documentation from the FreeBSD Documentation Project (Handbook, 1143 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1144 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1145 114620090624: 1147 The ABI of various structures related to the SYSV IPC API have been 1148 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1149 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1150 800100. 1151 115220090622: 1153 Layout of struct vnet has changed as routing related variables were 1154 moved to their own Vimage module. Modules need to be recompiled. Bump 1155 __FreeBSD_version to 800099. 1156 115720090619: 1158 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1159 respectively. As long as no more than 16 groups per process are used, 1160 no changes should be visible. When more than 16 groups are used, old 1161 binaries may fail if they call getgroups() or getgrouplist() with 1162 statically sized storage. Recompiling will work around this, but 1163 applications should be modified to use dynamically allocated storage 1164 for group arrays as POSIX.1-2008 does not cap an implementation's 1165 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1166 1167 NFS and portalfs mounts may also be affected as the list of groups is 1168 truncated to 16. Users of NFS who use more than 16 groups, should 1169 take care that negative group permissions are not used on the exported 1170 file systems as they will not be reliable unless a GSSAPI based 1171 authentication method is used. 1172 117320090616: 1174 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1175 option compiles in the support for adaptive spinning for lockmgrs 1176 which want to enable it. The lockinit() function now accepts the flag 1177 LK_ADAPTIVE in order to make the lock object subject to adaptive 1178 spinning when both held in write and read mode. 1179 118020090613: 1181 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1182 changed. User applications that use this ioctl need to be rebuilt. 1183 118420090611: 1185 The layout of struct thread has changed. Kernel and modules need to 1186 be rebuilt. 1187 118820090608: 1189 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1190 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1191 119220090602: 1193 window(1) has been removed from the base system. It can now be 1194 installed from ports. The port is called misc/window. 1195 119620090601: 1197 The way we are storing and accessing `routing table' entries has 1198 changed. Programs reading the FIB, like netstat, need to be 1199 re-compiled. 1200 120120090601: 1202 A new netisr implementation has been added for FreeBSD 8. Network 1203 file system modules, such as igmp, ipdivert, and others, should be 1204 rebuilt. 1205 Bump __FreeBSD_version to 800096. 1206 120720090530: 1208 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1209 more valid. 1210 121120090530: 1212 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1213 Bump __FreeBSD_version to 800094. 1214 121520090529: 1216 Add mnt_xflag field to 'struct mount'. File system modules need to be 1217 rebuilt. 1218 Bump __FreeBSD_version to 800093. 1219 122020090528: 1221 The compiling option ADAPTIVE_SX has been retired while it has been 1222 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1223 The KPI for sx_init_flags() changes as accepting flags: 1224 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1225 been introduced in order to handle the reversed logic. 1226 Bump __FreeBSD_version to 800092. 1227 122820090527: 1229 Add support for hierarchical jails. Remove global securelevel. 1230 Bump __FreeBSD_version to 800091. 1231 123220090523: 1233 The layout of struct vnet_net has changed, therefore modules 1234 need to be rebuilt. 1235 Bump __FreeBSD_version to 800090. 1236 123720090523: 1238 The newly imported zic(8) produces a new format in the output. Please 1239 run tzsetup(8) to install the newly created data to /etc/localtime. 1240 124120090520: 1242 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1243 hw.usb.* and is now consistent again with previous releases. 1244 124520090520: 1246 802.11 monitor mode support was revised and driver api's were changed. 1247 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1248 of DLT_IEEE802_11. No user-visible data structures were changed but 1249 applications that use DLT_IEEE802_11 may require changes. 1250 Bump __FreeBSD_version to 800088. 1251 125220090430: 1253 The layout of the following structs has changed: sysctl_oid, 1254 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1255 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1256 panics may be experienced. World rebuild is required for 1257 correctly checking networking state from userland. 1258 Bump __FreeBSD_version to 800085. 1259 126020090429: 1261 MLDv2 and Source-Specific Multicast (SSM) have been merged 1262 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1263 The implementation of SSM within FreeBSD's IPv6 stack closely 1264 follows the IPv4 implementation. 1265 1266 For kernel developers: 1267 1268 * The most important changes are that the ip6_output() and 1269 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1270 and this lock has been downgraded to a non-recursive mutex. 1271 1272 * As with the changes to the IPv4 stack to support SSM, filtering 1273 of inbound multicast traffic must now be performed by transport 1274 protocols within the IPv6 stack. This does not apply to TCP and 1275 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1276 1277 * The KPIs used by IPv6 multicast are similar to those used by 1278 the IPv4 stack, with the following differences: 1279 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1280 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1281 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1282 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1283 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1284 for MLDv1 have an additional 'timer' argument which is used to 1285 jitter the initial membership report for the solicited-node 1286 multicast membership on-link. 1287 * This is not strictly needed for MLDv2, which already jitters 1288 its report transmissions. However, the 'timer' argument is 1289 preserved in case MLDv1 is active on the interface. 1290 1291 * The KAME linked-list based IPv6 membership implementation has 1292 been refactored to use a vector similar to that used by the IPv4 1293 stack. 1294 Code which maintains a list of its own multicast memberships 1295 internally, e.g. carp, has been updated to reflect the new 1296 semantics. 1297 1298 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1299 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1300 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1301 implementation constraint which needs to be addressed in HEAD. 1302 1303 For application developers: 1304 1305 * The changes are broadly similar to those made for the IPv4 1306 stack. 1307 1308 * The use of IPv4 and IPv6 multicast socket options on the same 1309 socket, using mapped addresses, HAS NOT been tested or supported. 1310 1311 * There are a number of issues with the implementation of various 1312 IPv6 multicast APIs which need to be resolved in the API surface 1313 before the implementation is fully compatible with KAME userland 1314 use, and these are mostly to do with interface index treatment. 1315 1316 * The literature available discusses the use of either the delta / ASM 1317 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1318 using setsourcefilter(3)/getsourcefilter(3). For more information 1319 please refer to RFC 3768, 'Socket Interface Extensions for 1320 Multicast Source Filters'. 1321 1322 * Applications which use the published RFC 3678 APIs should be fine. 1323 1324 For systems administrators: 1325 1326 * The mtest(8) utility has been refactored to support IPv6, in 1327 addition to IPv4. Interface addresses are no longer accepted 1328 as arguments, their names must be used instead. The utility 1329 will map the interface name to its first IPv4 address as 1330 returned by getifaddrs(3). 1331 1332 * The ifmcstat(8) utility has also been updated to print the MLDv2 1333 endpoint state and source filter lists via sysctl(3). 1334 1335 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1336 loopback of IPv6 multicast datagrams by default; it defaults to 1 1337 to preserve the existing behaviour. Disabling multicast loopback is 1338 recommended for optimal system performance. 1339 1340 * The IPv6 MROUTING code has been changed to examine this sysctl 1341 instead of attempting to perform a group lookup before looping 1342 back forwarded datagrams. 1343 1344 Bump __FreeBSD_version to 800084. 1345 134620090422: 1347 Implement low-level Bluetooth HCI API. 1348 Bump __FreeBSD_version to 800083. 1349 135020090419: 1351 The layout of struct malloc_type, used by modules to register new 1352 memory allocation types, has changed. Most modules will need to 1353 be rebuilt or panics may be experienced. 1354 Bump __FreeBSD_version to 800081. 1355 135620090415: 1357 Anticipate overflowing inp_flags - add inp_flags2. 1358 This changes most offsets in inpcb, so checking v4 connection 1359 state will require a world rebuild. 1360 Bump __FreeBSD_version to 800080. 1361 136220090415: 1363 Add an llentry to struct route and struct route_in6. Modules 1364 embedding a struct route will need to be recompiled. 1365 Bump __FreeBSD_version to 800079. 1366 136720090414: 1368 The size of rt_metrics_lite and by extension rtentry has changed. 1369 Networking administration apps will need to be recompiled. 1370 The route command now supports show as an alias for get, weighting 1371 of routes, sticky and nostick flags to alter the behavior of stateful 1372 load balancing. 1373 Bump __FreeBSD_version to 800078. 1374 137520090408: 1376 Do not use Giant for kbdmux(4) locking. This is wrong and 1377 apparently causing more problems than it solves. This will 1378 re-open the issue where interrupt handlers may race with 1379 kbdmux(4) in polling mode. Typical symptoms include (but 1380 not limited to) duplicated and/or missing characters when 1381 low level console functions (such as gets) are used while 1382 interrupts are enabled (for example geli password prompt, 1383 mountroot prompt etc.). Disabling kbdmux(4) may help. 1384 138520090407: 1386 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1387 kernel modules referencing any of the above need to be recompiled. 1388 Bump __FreeBSD_version to 800075. 1389 139020090320: 1391 GEOM_PART has become the default partition slicer for storage devices, 1392 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1393 introduces some changes: 1394 1395 MSDOS/EBR: the devices created from MSDOS extended partition entries 1396 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1397 to devices with offset-based names. fstabs may need to be modified. 1398 1399 BSD: the "geometry does not match label" warning is harmless in most 1400 cases but it points to problems in file system misalignment with 1401 disk geometry. The "c" partition is now implicit, covers the whole 1402 top-level drive and cannot be (mis)used by users. 1403 1404 General: Kernel dumps are now not allowed to be written to devices 1405 whose partition types indicate they are meant to be used for file 1406 systems (or, in case of MSDOS partitions, as something else than 1407 the "386BSD" type). 1408 1409 Most of these changes date approximately from 200812. 1410 141120090319: 1412 The uscanner(4) driver has been removed from the kernel. This follows 1413 Linux removing theirs in 2.6 and making libusb the default interface 1414 (supported by sane). 1415 141620090319: 1417 The multicast forwarding code has been cleaned up. netstat(1) 1418 only relies on KVM now for printing bandwidth upcall meters. 1419 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1420 ip6_mroute_mod respectively. The config(5) options for statically 1421 compiling this code remain the same, i.e. 'options MROUTING'. 1422 142320090315: 1424 Support for the IFF_NEEDSGIANT network interface flag has been 1425 removed, which means that non-MPSAFE network device drivers are no 1426 longer supported. In particular, if_ar, if_sr, and network device 1427 drivers from the old (legacy) USB stack can no longer be built or 1428 used. 1429 143020090313: 1431 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1432 a bunch of new language catalog files have also been added. 1433 This means that some common libc messages are now localized and 1434 they depend on the LC_MESSAGES environmental variable. 1435 143620090313: 1437 The k8temp(4) driver has been renamed to amdtemp(4) since 1438 support for Family 10 and Family 11 CPU families was added. 1439 144020090309: 1441 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1442 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1443 1444 For kernel developers, the most important changes are that the 1445 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1446 and this lock has been downgraded to a non-recursive mutex. 1447 1448 Transport protocols (UDP, Raw IP) are now responsible for filtering 1449 inbound multicast traffic according to group membership and source 1450 filters. The imo_multicast_filter() KPI exists for this purpose. 1451 Transports which do not use multicast (SCTP, TCP) already reject 1452 multicast by default. Forwarding and receive performance may improve 1453 as a mutex acquisition is no longer needed in the ip_input() 1454 low-level input path. in_addmulti() and in_delmulti() are shimmed 1455 to new KPIs which exist to support SSM in-kernel. 1456 1457 For application developers, it is recommended that loopback of 1458 multicast datagrams be disabled for best performance, as this 1459 will still cause the lock to be taken for each looped-back 1460 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1461 be tuned to 0 to disable loopback by default; it defaults to 1 1462 to preserve the existing behaviour. 1463 1464 For systems administrators, to obtain best performance with 1465 multicast reception and multiple groups, it is always recommended 1466 that a card with a suitably precise hash filter is used. Hash 1467 collisions will still result in the lock being taken within the 1468 transport protocol input path to check group membership. 1469 1470 If deploying FreeBSD in an environment with IGMP snooping switches, 1471 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1472 enabled; this forces 224.0.0.0/24 group membership to be announced 1473 via IGMP. 1474 1475 The size of 'struct igmpstat' has changed; netstat needs to be 1476 recompiled to reflect this. 1477 Bump __FreeBSD_version to 800070. 1478 147920090309: 1480 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1481 updated to use it. This requires a buildworld/installworld in order to 1482 update the library and dependencies (usbconfig, etc). Its advisable to 1483 rebuild all ports which uses libusb. More specific directions are given 1484 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1485 libusb are no longer required and can be removed. 1486 148720090302: 1488 A workaround is committed to allow the creation of System V shared 1489 memory segment of size > 2 GB on the 64-bit architectures. 1490 Due to a limitation of the existing ABI, the shm_segsz member 1491 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1492 wrong for large segments. Note that limits must be explicitly 1493 raised to allow such segments to be created. 1494 149520090301: 1496 The layout of struct ifnet has changed, requiring a rebuild of all 1497 network device driver modules. 1498 149920090227: 1500 The /dev handling for the new USB stack has changed, a 1501 buildworld/installworld is required for libusb20. 1502 150320090223: 1504 The new USB2 stack has now been permanently moved in and all kernel and 1505 module names reverted to their previous values (eg, usb, ehci, ohci, 1506 ums, ...). The old usb stack can be compiled in by prefixing the name 1507 with the letter 'o', the old usb modules have been removed. 1508 Updating entry 20090216 for xorg and 20090215 for libmap may still 1509 apply. 1510 151120090217: 1512 The rc.conf(5) option if_up_delay has been renamed to 1513 defaultroute_delay to better reflect its purpose. If you have 1514 customized this setting in /etc/rc.conf you need to update it to 1515 use the new name. 1516 151720090216: 1518 xorg 7.4 wants to configure its input devices via hald which does not 1519 yet work with USB2. If the keyboard/mouse does not work in xorg then 1520 add 1521 Option "AllowEmptyInput" "off" 1522 to your ServerLayout section. This will cause X to use the configured 1523 kbd and mouse sections from your xorg.conf. 1524 152520090215: 1526 The GENERIC kernels for all architectures now default to the new USB2 1527 stack. No kernel config options or code have been removed so if a 1528 problem arises please report it and optionally revert to the old USB 1529 stack. If you are loading USB kernel modules or have a custom kernel 1530 that includes GENERIC then ensure that usb names are also changed over, 1531 eg uftdi -> usb2_serial_ftdi. 1532 1533 Older programs linked against the ports libusb 0.1 need to be 1534 redirected to the new stack's libusb20. /etc/libmap.conf can 1535 be used for this: 1536 # Map old usb library to new one for usb2 stack 1537 libusb-0.1.so.8 libusb20.so.1 1538 153920090209: 1540 All USB ethernet devices now attach as interfaces under the name ueN 1541 (eg. ue0). This is to provide a predictable name as vendors often 1542 change usb chipsets in a product without notice. 1543 154420090203: 1545 The ichsmb(4) driver has been changed to require SMBus slave 1546 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1547 All of the other SMBus controller drivers require left-justified 1548 slave addresses, so this change makes all the drivers provide the 1549 same interface. 1550 155120090201: 1552 INET6 statistics (struct ip6stat) was updated. 1553 netstat(1) needs to be recompiled. 1554 155520090119: 1556 NTFS has been removed from GENERIC kernel on amd64 to match 1557 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1558 will load ntfs.ko module automatically when NTFS support is 1559 actually needed, unless ntfs.ko is not installed or security 1560 level prohibits loading kernel modules. If either is the case, 1561 "options NTFS" has to be added into kernel config. 1562 156320090115: 1564 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1565 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1566 800061. User space tools that rely on the size of struct tcpcb in 1567 tcp_var.h (e.g. sockstat) need to be recompiled. 1568 156920081225: 1570 ng_tty(4) module updated to match the new TTY subsystem. 1571 Due to API change, user-level applications must be updated. 1572 New API support added to mpd5 CVS and expected to be present 1573 in next mpd5.3 release. 1574 157520081219: 1576 With __FreeBSD_version 800060 the makefs tool is part of 1577 the base system (it was a port). 1578 157920081216: 1580 The afdata and ifnet locks have been changed from mutexes to 1581 rwlocks, network modules will need to be re-compiled. 1582 158320081214: 1584 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1585 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1586 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1587 architecture and 40 bytes on 64-bit architecture. The userland 1588 applications "arp" and "ndp" have been updated accordingly. 1589 The output from "netstat -r" shows only routing entries and 1590 none of the L2 information. 1591 159220081130: 1593 __FreeBSD_version 800057 marks the switchover from the 1594 binary ath hal to source code. Users must add the line: 1595 1596 options AH_SUPPORT_AR5416 1597 1598 to their kernel config files when specifying: 1599 1600 device ath_hal 1601 1602 The ath_hal module no longer exists; the code is now compiled 1603 together with the driver in the ath module. It is now 1604 possible to tailor chip support (i.e. reduce the set of chips 1605 and thereby the code size); consult ath_hal(4) for details. 1606 160720081121: 1608 __FreeBSD_version 800054 adds memory barriers to 1609 <machine/atomic.h>, new interfaces to ifnet to facilitate 1610 multiple hardware transmit queues for cards that support 1611 them, and a lock-less ring-buffer implementation to 1612 enable drivers to more efficiently manage queueing of 1613 packets. 1614 161520081117: 1616 A new version of ZFS (version 13) has been merged to -HEAD. 1617 This version has zpool attribute "listsnapshots" off by 1618 default, which means "zfs list" does not show snapshots, 1619 and is the same as Solaris behavior. 1620 162120081028: 1622 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1623 162420081009: 1625 The uhci, ohci, ehci and slhci USB Host controller drivers have 1626 been put into separate modules. If you load the usb module 1627 separately through loader.conf you will need to load the 1628 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1629 controller add the following to loader.conf: 1630 1631 uhci_load="YES" 1632 ehci_load="YES" 1633 163420081009: 1635 The ABI used by the PMC toolset has changed. Please keep 1636 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1637 sync. 1638 163920081009: 1640 atapci kernel module now includes only generic PCI ATA 1641 driver. AHCI driver moved to ataahci kernel module. 1642 All vendor-specific code moved into separate kernel modules: 1643 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1644 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1645 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1646 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1647 164820080820: 1649 The TTY subsystem of the kernel has been replaced by a new 1650 implementation, which provides better scalability and an 1651 improved driver model. Most common drivers have been migrated to 1652 the new TTY subsystem, while others have not. The following 1653 drivers have not yet been ported to the new TTY layer: 1654 1655 PCI/ISA: 1656 cy, digi, rc, rp, sio 1657 1658 USB: 1659 ubser, ucycom 1660 1661 Line disciplines: 1662 ng_h4, ng_tty, ppp, sl, snp 1663 1664 Adding these drivers to your kernel configuration file shall 1665 cause compilation to fail. 1666 166720080818: 1668 ntpd has been upgraded to 4.2.4p5. 1669 167020080801: 1671 OpenSSH has been upgraded to 5.1p1. 1672 1673 For many years, FreeBSD's version of OpenSSH preferred DSA 1674 over RSA for host and user authentication keys. With this 1675 upgrade, we've switched to the vendor's default of RSA over 1676 DSA. This may cause upgraded clients to warn about unknown 1677 host keys even for previously known hosts. Users should 1678 follow the usual procedure for verifying host keys before 1679 accepting the RSA key. 1680 1681 This can be circumvented by setting the "HostKeyAlgorithms" 1682 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1683 command line. 1684 1685 Please note that the sequence of keys offered for 1686 authentication has been changed as well. You may want to 1687 specify IdentityFile in a different order to revert this 1688 behavior. 1689 169020080713: 1691 The sio(4) driver has been removed from the i386 and amd64 1692 kernel configuration files. This means uart(4) is now the 1693 default serial port driver on those platforms as well. 1694 1695 To prevent collisions with the sio(4) driver, the uart(4) driver 1696 uses different names for its device nodes. This means the 1697 onboard serial port will now most likely be called "ttyu0" 1698 instead of "ttyd0". You may need to reconfigure applications to 1699 use the new device names. 1700 1701 When using the serial port as a boot console, be sure to update 1702 /boot/device.hints and /etc/ttys before booting the new kernel. 1703 If you forget to do so, you can still manually specify the hints 1704 at the loader prompt: 1705 1706 set hint.uart.0.at="isa" 1707 set hint.uart.0.port="0x3F8" 1708 set hint.uart.0.flags="0x10" 1709 set hint.uart.0.irq="4" 1710 boot -s 1711 171220080609: 1713 The gpt(8) utility has been removed. Use gpart(8) to partition 1714 disks instead. 1715 171620080603: 1717 The version that Linuxulator emulates was changed from 2.4.2 1718 to 2.6.16. If you experience any problems with Linux binaries 1719 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1720 if it fixes the problem contact emulation mailing list. 1721 172220080525: 1723 ISDN4BSD (I4B) was removed from the src tree. You may need to 1724 update a your kernel configuration and remove relevant entries. 1725 172620080509: 1727 I have checked in code to support multiple routing tables. 1728 See the man pages setfib(1) and setfib(2). 1729 This is a hopefully backwards compatible version, 1730 but to make use of it you need to compile your kernel 1731 with options ROUTETABLES=2 (or more up to 16). 1732 173320080420: 1734 The 802.11 wireless support was redone to enable multi-bss 1735 operation on devices that are capable. The underlying device 1736 is no longer used directly but instead wlanX devices are 1737 cloned with ifconfig. This requires changes to rc.conf files. 1738 For example, change: 1739 ifconfig_ath0="WPA DHCP" 1740 to 1741 wlans_ath0=wlan0 1742 ifconfig_wlan0="WPA DHCP" 1743 see rc.conf(5) for more details. In addition, mergemaster of 1744 /etc/rc.d is highly recommended. Simultaneous update of userland 1745 and kernel wouldn't hurt either. 1746 1747 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1748 modules were merged into the base wlan module. All references 1749 to these modules (e.g. in kernel config files) must be removed. 1750 175120080408: 1752 psm(4) has gained write(2) support in native operation level. 1753 Arbitrary commands can be written to /dev/psm%d and status can 1754 be read back from it. Therefore, an application is responsible 1755 for status validation and error recovery. It is a no-op in 1756 other operation levels. 1757 175820080312: 1759 Support for KSE threading has been removed from the kernel. To 1760 run legacy applications linked against KSE libmap.conf may 1761 be used. The following libmap.conf may be used to ensure 1762 compatibility with any prior release: 1763 1764 libpthread.so.1 libthr.so.1 1765 libpthread.so.2 libthr.so.2 1766 libkse.so.3 libthr.so.3 1767 176820080301: 1769 The layout of struct vmspace has changed. This affects libkvm 1770 and any executables that link against libkvm and use the 1771 kvm_getprocs() function. In particular, but not exclusively, 1772 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1773 The effects are minimal, but it's advisable to upgrade world 1774 nonetheless. 1775 177620080229: 1777 The latest em driver no longer has support in it for the 1778 82575 adapter, this is now moved to the igb driver. The 1779 split was done to make new features that are incompatible 1780 with older hardware easier to do. 1781 178220080220: 1783 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1784 likewise the kernel option is now GEOM_LINUX_LVM. 1785 178620080211: 1787 The default NFS mount mode has changed from UDP to TCP for 1788 increased reliability. If you rely on (insecurely) NFS 1789 mounting across a firewall you may need to update your 1790 firewall rules. 1791 179220080208: 1793 Belatedly note the addition of m_collapse for compacting 1794 mbuf chains. 1795 179620080126: 1797 The fts(3) structures have been changed to use adequate 1798 integer types for their members and so to be able to cope 1799 with huge file trees. The old fts(3) ABI is preserved 1800 through symbol versioning in libc, so third-party binaries 1801 using fts(3) should still work, although they will not take 1802 advantage of the extended types. At the same time, some 1803 third-party software might fail to build after this change 1804 due to unportable assumptions made in its source code about 1805 fts(3) structure members. Such software should be fixed 1806 by its vendor or, in the worst case, in the ports tree. 1807 FreeBSD_version 800015 marks this change for the unlikely 1808 case that a portable fix is impossible. 1809 181020080123: 1811 To upgrade to -current after this date, you must be running 1812 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1813 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1814 181520071128: 1816 The ADAPTIVE_GIANT kernel option has been retired because its 1817 functionality is the default now. 1818 181920071118: 1820 The AT keyboard emulation of sunkbd(4) has been turned on 1821 by default. In order to make the special symbols of the Sun 1822 keyboards driven by sunkbd(4) work under X these now have 1823 to be configured the same way as Sun USB keyboards driven 1824 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1825 1826 Option "XkbLayout" "us" 1827 Option "XkbRules" "xorg" 1828 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1829 183020071024: 1831 It has been decided that it is desirable to provide ABI 1832 backwards compatibility to the FreeBSD 4/5/6 versions of the 1833 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1834 broken with the introduction of PCI domain support (see the 1835 20070930 entry). Unfortunately, this required the ABI of 1836 PCIOCGETCONF to be broken again in order to be able to 1837 provide backwards compatibility to the old version of that 1838 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1839 again. As for prominent ports this affects neither pciutils 1840 nor xorg-server this time, the hal port needs to be rebuilt 1841 however. 1842 184320071020: 1844 The misnamed kthread_create() and friends have been renamed 1845 to kproc_create() etc. Many of the callers already 1846 used kproc_start().. 1847 I will return kthread_create() and friends in a while 1848 with implementations that actually create threads, not procs. 1849 Renaming corresponds with version 800002. 1850 185120071010: 1852 RELENG_7 branched. 1853 1854COMMON ITEMS: 1855 1856 General Notes 1857 ------------- 1858 Avoid using make -j when upgrading. While generally safe, there are 1859 sometimes problems using -j to upgrade. If your upgrade fails with 1860 -j, please try again without -j. From time to time in the past there 1861 have been problems using -j with buildworld and/or installworld. This 1862 is especially true when upgrading between "distant" versions (eg one 1863 that cross a major release boundary or several minor releases, or when 1864 several months have passed on the -current branch). 1865 1866 Sometimes, obscure build problems are the result of environment 1867 poisoning. This can happen because the make utility reads its 1868 environment when searching for values for global variables. To run 1869 your build attempts in an "environmental clean room", prefix all make 1870 commands with 'env -i '. See the env(1) manual page for more details. 1871 1872 When upgrading from one major version to another it is generally best 1873 to upgrade to the latest code in the currently installed branch first, 1874 then do an upgrade to the new branch. This is the best-tested upgrade 1875 path, and has the highest probability of being successful. Please try 1876 this approach before reporting problems with a major version upgrade. 1877 1878 When upgrading a live system, having a root shell around before 1879 installing anything can help undo problems. Not having a root shell 1880 around can lead to problems if pam has changed too much from your 1881 starting point to allow continued authentication after the upgrade. 1882 1883 ZFS notes 1884 --------- 1885 When upgrading the boot ZFS pool to a new version, always follow 1886 these two steps: 1887 1888 1.) recompile and reinstall the ZFS boot loader and boot block 1889 (this is part of "make buildworld" and "make installworld") 1890 1891 2.) update the ZFS boot block on your boot drive 1892 1893 The following example updates the ZFS boot block on the first 1894 partition (freebsd-boot) of a GPT partitioned drive ad0: 1895 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1896 1897 Non-boot pools do not need these updates. 1898 1899 To build a kernel 1900 ----------------- 1901 If you are updating from a prior version of FreeBSD (even one just 1902 a few days old), you should follow this procedure. It is the most 1903 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1904 1905 make kernel-toolchain 1906 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1907 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1908 1909 To test a kernel once 1910 --------------------- 1911 If you just want to boot a kernel once (because you are not sure 1912 if it works, or if you want to boot a known bad kernel to provide 1913 debugging information) run 1914 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1915 nextboot -k testkernel 1916 1917 To just build a kernel when you know that it won't mess you up 1918 -------------------------------------------------------------- 1919 This assumes you are already running a CURRENT system. Replace 1920 ${arch} with the architecture of your machine (e.g. "i386", 1921 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1922 1923 cd src/sys/${arch}/conf 1924 config KERNEL_NAME_HERE 1925 cd ../compile/KERNEL_NAME_HERE 1926 make depend 1927 make 1928 make install 1929 1930 If this fails, go to the "To build a kernel" section. 1931 1932 To rebuild everything and install it on the current system. 1933 ----------------------------------------------------------- 1934 # Note: sometimes if you are running current you gotta do more than 1935 # is listed here if you are upgrading from a really old current. 1936 1937 <make sure you have good level 0 dumps> 1938 make buildworld 1939 make kernel KERNCONF=YOUR_KERNEL_HERE 1940 [1] 1941 <reboot in single user> [3] 1942 mergemaster -p [5] 1943 make installworld 1944 mergemaster -i [4] 1945 make delete-old [6] 1946 <reboot> 1947 1948 To cross-install current onto a separate partition 1949 -------------------------------------------------- 1950 # In this approach we use a separate partition to hold 1951 # current's root, 'usr', and 'var' directories. A partition 1952 # holding "/", "/usr" and "/var" should be about 2GB in 1953 # size. 1954 1955 <make sure you have good level 0 dumps> 1956 <boot into -stable> 1957 make buildworld 1958 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1959 <maybe newfs current's root partition> 1960 <mount current's root partition on directory ${CURRENT_ROOT}> 1961 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1962 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1963 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1964 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1965 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1966 <reboot into current> 1967 <do a "native" rebuild/install as described in the previous section> 1968 <maybe install compatibility libraries from ports/misc/compat*> 1969 <reboot> 1970 1971 1972 To upgrade in-place from stable to current 1973 ---------------------------------------------- 1974 <make sure you have good level 0 dumps> 1975 make buildworld [9] 1976 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1977 [1] 1978 <reboot in single user> [3] 1979 mergemaster -p [5] 1980 make installworld 1981 mergemaster -i [4] 1982 make delete-old [6] 1983 <reboot> 1984 1985 Make sure that you've read the UPDATING file to understand the 1986 tweaks to various things you need. At this point in the life 1987 cycle of current, things change often and you are on your own 1988 to cope. The defaults can also change, so please read ALL of 1989 the UPDATING entries. 1990 1991 Also, if you are tracking -current, you must be subscribed to 1992 freebsd-current@freebsd.org. Make sure that before you update 1993 your sources that you have read and understood all the recent 1994 messages there. If in doubt, please track -stable which has 1995 much fewer pitfalls. 1996 1997 [1] If you have third party modules, such as vmware, you 1998 should disable them at this point so they don't crash your 1999 system on reboot. 2000 2001 [3] From the bootblocks, boot -s, and then do 2002 fsck -p 2003 mount -u / 2004 mount -a 2005 cd src 2006 adjkerntz -i # if CMOS is wall time 2007 Also, when doing a major release upgrade, it is required that 2008 you boot into single user mode to do the installworld. 2009 2010 [4] Note: This step is non-optional. Failure to do this step 2011 can result in a significant reduction in the functionality of the 2012 system. Attempting to do it by hand is not recommended and those 2013 that pursue this avenue should read this file carefully, as well 2014 as the archives of freebsd-current and freebsd-hackers mailing lists 2015 for potential gotchas. The -U option is also useful to consider. 2016 See mergemaster(8) for more information. 2017 2018 [5] Usually this step is a noop. However, from time to time 2019 you may need to do this if you get unknown user in the following 2020 step. It never hurts to do it all the time. You may need to 2021 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2022 install) after the buildworld before this step if you last updated 2023 from current before 20130425 or from -stable before 20130430. 2024 2025 [6] This only deletes old files and directories. Old libraries 2026 can be deleted by "make delete-old-libs", but you have to make 2027 sure that no program is using those libraries anymore. 2028 2029 [8] In order to have a kernel that can run the 4.x binaries needed to 2030 do an installworld, you must include the COMPAT_FREEBSD4 option in 2031 your kernel. Failure to do so may leave you with a system that is 2032 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2033 required to run the 5.x binaries on more recent kernels. And so on 2034 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2035 2036 Make sure that you merge any new devices from GENERIC since the 2037 last time you updated your kernel config file. 2038 2039 [9] When checking out sources, you must include the -P flag to have 2040 cvs prune empty directories. 2041 2042 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2043 "?=" instead of the "=" assignment operator, so that buildworld can 2044 override the CPUTYPE if it needs to. 2045 2046 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2047 not on the command line, or in /etc/make.conf. buildworld will 2048 warn if it is improperly defined. 2049FORMAT: 2050 2051This file contains a list, in reverse chronological order, of major 2052breakages in tracking -current. It is not guaranteed to be a complete 2053list of such breakages, and only contains entries since October 10, 2007. 2054If you need to see UPDATING entries from before that date, you will need 2055to fetch an UPDATING file from an older FreeBSD release. 2056 2057Copyright information: 2058 2059Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2060 2061Redistribution, publication, translation and use, with or without 2062modification, in full or in part, in any form or format of this 2063document are permitted without further permission from the author. 2064 2065THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2066IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2067WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2068DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2069INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2070(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2071SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2072HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2073STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2074IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2075POSSIBILITY OF SUCH DAMAGE. 2076 2077Contact Warner Losh if you have any questions about your use of 2078this document. 2079 2080$FreeBSD$ 2081