UPDATING revision 261988
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 3420140216: 35 The nve(4) driver has been removed. Please use the nfe(4) driver 36 for NVIDIA nForce MCP Ethernet adapters instead. 37 3820140212: 39 An ABI incompatibility crept into the libc++ 3.4 import in r261283. 40 This could cause certain C++ applications using shared libraries built 41 against the previous version of libc++ to crash. The incompatibility 42 has now been fixed, but any C++ applications or shared libraries built 43 between r261283 and r261801 should be recompiled. 44 4520140128: 46 The libelf and libdwarf libraries have been updated to newer 47 versions from upstream. Shared library version numbers for 48 these two libraries were bumped. Any ports or binaries 49 requiring these two libraries should be recompiled. 50 __FreeBSD_version is bumped to 1100006. 51 5220140110: 53 If a Makefile in a tests/ directory was auto-generating a Kyuafile 54 instead of providing an explicit one, this would prevent such 55 Makefile from providing its own Kyuafile in the future during 56 NO_CLEAN builds. This has been fixed in the Makefiles but manual 57 intervention is needed to clean an objdir if you use NO_CLEAN: 58 # find /usr/obj -name Kyuafile | xargs rm -f 59 6020131213: 61 The behavior of gss_pseudo_random() for the krb5 mechanism 62 has changed, for applications requesting a longer random string 63 than produced by the underlying enctype's pseudo-random() function. 64 In particular, the random string produced from a session key of 65 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 66 be different at the 17th octet and later, after this change. 67 The counter used in the PRF+ construction is now encoded as a 68 big-endian integer in accordance with RFC 4402. 69 __FreeBSD_version is bumped to 1100004. 70 7120131108: 72 The WITHOUT_ATF build knob has been removed and its functionality 73 has been subsumed into the more generic WITHOUT_TESTS. If you were 74 using the former to disable the build of the ATF libraries, you 75 should change your settings to use the latter. 76 7720131025: 78 The default version of mtree is nmtree which is obtained from 79 NetBSD. The output is generally the same, but may vary 80 slightly. If you found you need identical output adding 81 "-F freebsd9" to the command line should do the trick. For the 82 time being, the old mtree is available as fmtree. 83 8420131014: 85 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 86 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 87 1.1.4_8 and verify bsdyml not linked in, before running "make 88 delete-old-libs": 89 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 90 or 91 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 92 9320131010: 94 The rc.d/jail script has been updated to support jail(8) 95 configuration file. The "jail_<jname>_*" rc.conf(5) variables 96 for per-jail configuration are automatically converted to 97 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 98 This is transparently backward compatible. See below about some 99 incompatibilities and rc.conf(5) manual page for more details. 100 101 These variables are now deprecated in favor of jail(8) configuration 102 file. One can use "rc.d/jail config <jname>" command to generate 103 a jail(8) configuration file in /var/run/jail.<jname>.conf without 104 running the jail(8) utility. The default pathname of the 105 configuration file is /etc/jail.conf and can be specified by 106 using $jail_conf or $jail_<jname>_conf variables. 107 108 Please note that jail_devfs_ruleset accepts an integer at 109 this moment. Please consider to rewrite the ruleset name 110 with an integer. 111 11220130930: 113 BIND has been removed from the base system. If all you need 114 is a local resolver, simply enable and start the local_unbound 115 service instead. Otherwise, several versions of BIND are 116 available in the ports tree. The dns/bind99 port is one example. 117 118 With this change, nslookup(1) and dig(1) are no longer in the base 119 system. Users should instead use host(1) and drill(1) which are 120 in the base system. Alternatively, nslookup and dig can 121 be obtained by installing the dns/bind-tools port. 122 12320130916: 124 With the addition of unbound(8), a new unbound user is now 125 required during installworld. "mergemaster -p" can be used to 126 add the user prior to installworld, as documented in the handbook. 127 12820130911: 129 OpenSSH is now built with DNSSEC support, and will by default 130 silently trust signed SSHFP records. This can be controlled with 131 the VerifyHostKeyDNS client configuration setting. DNSSEC support 132 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 133 13420130906: 135 The GNU Compiler Collection and C++ standard library (libstdc++) 136 are no longer built by default on platforms where clang is the system 137 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 138 options in src.conf. 139 14020130905: 141 The PROCDESC kernel option is now part of the GENERIC kernel 142 configuration and is required for the rwhod(8) to work. 143 If you are using custom kernel configuration, you should include 144 'options PROCDESC'. 145 14620130905: 147 The API and ABI related to the Capsicum framework was modified 148 in backward incompatible way. The userland libraries and programs 149 have to be recompiled to work with the new kernel. This includes the 150 following libraries and programs, but the whole buildworld is 151 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 152 kdump, procstat, rwho, rwhod, uniq. 153 15420130903: 155 AES-NI intrinsic support has been added to gcc. The AES-NI module 156 has been updated to use this support. A new gcc is required to build 157 the aesni module on both i386 and amd64. 158 15920130821: 160 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 161 Thus "device padlock_rng" and "device rdrand_rng" should be 162 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 163 16420130813: 165 WITH_ICONV has been split into two feature sets. WITH_ICONV now 166 enables just the iconv* functionality and is now on by default. 167 WITH_LIBICONV_COMPAT enables the libiconv api and link time 168 compatability. Set WITHOUT_ICONV to build the old way. 169 If you have been using WITH_ICONV before, you will very likely 170 need to turn on WITH_LIBICONV_COMPAT. 171 17220130806: 173 INVARIANTS option now enables DEBUG for code with OpenSolaris and 174 Illumos origin, including ZFS. If you have INVARIANTS in your 175 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 176 explicitly. 177 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 178 locks if WITNESS option was set. Because that generated a lot of 179 witness(9) reports and all of them were believed to be false 180 positives, this is no longer done. New option OPENSOLARIS_WITNESS 181 can be used to achieve the previous behavior. 182 18320130806: 184 Timer values in IPv6 data structures now use time_uptime instead 185 of time_second. Although this is not a user-visible functional 186 change, userland utilities which directly use them---ndp(8), 187 rtadvd(8), and rtsold(8) in the base system---need to be updated 188 to r253970 or later. 189 19020130802: 191 find -delete can now delete the pathnames given as arguments, 192 instead of only files found below them or if the pathname did 193 not contain any slashes. Formerly, the following error message 194 would result: 195 196 find: -delete: <path>: relative path potentially not safe 197 198 Deleting the pathnames given as arguments can be prevented 199 without error messages using -mindepth 1 or by changing 200 directory and passing "." as argument to find. This works in the 201 old as well as the new version of find. 202 20320130726: 204 Behavior of devfs rules path matching has been changed. 205 Pattern is now always matched against fully qualified devfs 206 path and slash characters must be explicitly matched by 207 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 208 subdirectories must be reviewed. 209 21020130716: 211 The default ARM ABI has changed to the ARM EABI. The old ABI is 212 incompatible with the ARM EABI and all programs and modules will 213 need to be rebuilt to work with a new kernel. 214 215 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 216 217 NOTE: Support for the old ABI will be removed in the future and 218 users are advised to upgrade. 219 22020130709: 221 pkg_install has been disconnected from the build if you really need it 222 you should add WITH_PKGTOOLS in your src.conf(5). 223 22420130709: 225 Most of network statistics structures were changed to be able 226 keep 64-bits counters. Thus all tools, that work with networking 227 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 228 22920130629: 230 Fix targets that run multiple make's to use && rather than ; 231 so that subsequent steps depend on success of previous. 232 233 NOTE: if building 'universe' with -j* on stable/8 or stable/9 234 it would be better to start the build using bmake, to avoid 235 overloading the machine. 236 23720130618: 238 Fix a bug that allowed a tracing process (e.g. gdb) to write 239 to a memory-mapped file in the traced process's address space 240 even if neither the traced process nor the tracing process had 241 write access to that file. 242 24320130615: 244 CVS has been removed from the base system. An exact copy 245 of the code is available from the devel/cvs port. 246 24720130613: 248 Some people report the following error after the switch to bmake: 249 250 make: illegal option -- J 251 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 252 ... 253 *** [buildworld] Error code 2 254 255 this likely due to an old instance of make in 256 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 257 which src/Makefile will use that blindly, if it exists, so if 258 you see the above error: 259 260 rm -rf `make -V MAKEPATH` 261 262 should resolve it. 263 26420130516: 265 Use bmake by default. 266 Whereas before one could choose to build with bmake via 267 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 268 make. The goal is to remove these knobs for 10-RELEASE. 269 270 It is worth noting that bmake (like gmake) treats the command 271 line as the unit of failure, rather than statements within the 272 command line. Thus '(cd some/where && dosomething)' is safer 273 than 'cd some/where; dosomething'. The '()' allows consistent 274 behavior in parallel build. 275 27620130429: 277 Fix a bug that allows NFS clients to issue READDIR on files. 278 27920130426: 280 The WITHOUT_IDEA option has been removed because 281 the IDEA patent expired. 282 28320130426: 284 The sysctl which controls TRIM support under ZFS has been renamed 285 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 286 enabled by default. 287 28820130425: 289 The mergemaster command now uses the default MAKEOBJDIRPREFIX 290 rather than creating it's own in the temporary directory in 291 order allow access to bootstrapped versions of tools such as 292 install and mtree. When upgrading from version of FreeBSD where 293 the install command does not support -l, you will need to 294 install a new mergemaster command if mergemaster -p is required. 295 This can be accomplished with the command (cd src/usr.sbin/mergemaster 296 && make install). 297 29820130404: 299 Legacy ATA stack, disabled and replaced by new CAM-based one since 300 FreeBSD 9.0, completely removed from the sources. Kernel modules 301 atadisk and atapi*, user-level tools atacontrol and burncd are 302 removed. Kernel option `options ATA_CAM` is now permanently enabled 303 and removed. 304 30520130319: 306 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 307 and socketpair(2). Software, in particular Kerberos, may 308 automatically detect and use these during building. The resulting 309 binaries will not work on older kernels. 310 31120130308: 312 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 313 information, see the respective 20130304 entry). 314 31520130304: 316 Recent commits to callout(9) changed the size of struct callout, 317 so the KBI is probably heavily disturbed. Also, some functions 318 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 319 by macros. Every kernel module using it won't load, so rebuild 320 is requested. 321 322 The ctl device has been re-enabled in GENERIC for i386 and amd64, 323 but does not initialize by default (because of the new CTL_DISABLE 324 option) to save memory. To re-enable it, remove the CTL_DISABLE 325 option from the kernel config file or set kern.cam.ctl.disable=0 326 in /boot/loader.conf. 327 32820130301: 329 The ctl device has been disabled in GENERIC for i386 and amd64. 330 This was done due to the extra memory being allocated at system 331 initialisation time by the ctl driver which was only used if 332 a CAM target device was created. This makes a FreeBSD system 333 unusable on 128MB or less of RAM. 334 33520130208: 336 A new compression method (lz4) has been merged to -HEAD. Please 337 refer to zpool-features(7) for more information. 338 339 Please refer to the "ZFS notes" section of this file for information 340 on upgrading boot ZFS pools. 341 34220130129: 343 A BSD-licensed patch(1) variant has been added and is installed 344 as bsdpatch, being the GNU version the default patch. 345 To inverse the logic and use the BSD-licensed one as default, 346 while having the GNU version installed as gnupatch, rebuild 347 and install world with the WITH_BSD_PATCH knob set. 348 34920130121: 350 Due to the use of the new -l option to install(1) during build 351 and install, you must take care not to directly set the INSTALL 352 make variable in your /etc/make.conf, /etc/src.conf, or on the 353 command line. If you wish to use the -C flag for all installs 354 you may be able to add INSTALL+=-C to /etc/make.conf or 355 /etc/src.conf. 356 35720130118: 358 The install(1) option -M has changed meaning and now takes an 359 argument that is a file or path to append logs to. In the 360 unlikely event that -M was the last option on the command line 361 and the command line contained at least two files and a target 362 directory the first file will have logs appended to it. The -M 363 option served little practical purpose in the last decade so its 364 use is expected to be extremely rare. 365 36620121223: 367 After switching to Clang as the default compiler some users of ZFS 368 on i386 systems started to experience stack overflow kernel panics. 369 Please consider using 'options KSTACK_PAGES=4' in such configurations. 370 37120121222: 372 GEOM_LABEL now mangles label names read from file system metadata. 373 Mangling affect labels containing spaces, non-printable characters, 374 '%' or '"'. Device names in /etc/fstab and other places may need to 375 be updated. 376 37720121217: 378 By default, only the 10 most recent kernel dumps will be saved. To 379 restore the previous behaviour (no limit on the number of kernel dumps 380 stored in the dump directory) add the following line to /etc/rc.conf: 381 382 savecore_flags="" 383 38420121201: 385 With the addition of auditdistd(8), a new auditdistd user is now 386 required during installworld. "mergemaster -p" can be used to 387 add the user prior to installworld, as documented in the handbook. 388 38920121117: 390 The sin6_scope_id member variable in struct sockaddr_in6 is now 391 filled by the kernel before passing the structure to the userland via 392 sysctl or routing socket. This means the KAME-specific embedded scope 393 id in sin6_addr.s6_addr[2] is always cleared in userland application. 394 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 395 __FreeBSD_version is bumped to 1000025. 396 39720121105: 398 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 399 This means that the world and kernel will be compiled with clang 400 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 401 and /usr/bin/cpp. To disable this behavior and revert to building 402 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 403 of current may need to bootstrap WITHOUT_CLANG first if the clang 404 build fails (its compatibility window doesn't extend to the 9 stable 405 branch point). 406 40720121102: 408 The IPFIREWALL_FORWARD kernel option has been removed. Its 409 functionality now turned on by default. 410 41120121023: 412 The ZERO_COPY_SOCKET kernel option has been removed and 413 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 414 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 415 mechanism which is not safe and may result in kernel crashes. 416 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 417 driver supports disposeable external page sized mbuf storage. 418 Proper replacements for both zero-copy mechanisms are under 419 consideration and will eventually lead to complete removal 420 of the two kernel options. 421 42220121023: 423 The IPv4 network stack has been converted to network byte 424 order. The following modules need to be recompiled together 425 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 426 pf(4), ipfw(4), ng_ipfw(4), stf(4). 427 42820121022: 429 Support for non-MPSAFE filesystems was removed from VFS. The 430 VFS_VERSION was bumped, all filesystem modules shall be 431 recompiled. 432 43320121018: 434 All the non-MPSAFE filesystems have been disconnected from 435 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 436 portalfs, smbfs, xfs. 437 43820121016: 439 The interface cloning API and ABI has changed. The following 440 modules need to be recompiled together with kernel: 441 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 442 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 443 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 444 44520121015: 446 The sdhci driver was split in two parts: sdhci (generic SD Host 447 Controller logic) and sdhci_pci (actual hardware driver). 448 No kernel config modifications are required, but if you 449 load sdhc as a module you must switch to sdhci_pci instead. 450 45120121014: 452 Import the FUSE kernel and userland support into base system. 453 45420121013: 455 The GNU sort(1) program has been removed since the BSD-licensed 456 sort(1) has been the default for quite some time and no serious 457 problems have been reported. The corresponding WITH_GNU_SORT 458 knob has also gone. 459 46020121006: 461 The pfil(9) API/ABI for AF_INET family has been changed. Packet 462 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 463 with new kernel. 464 46520121001: 466 The net80211(4) ABI has been changed to allow for improved driver 467 PS-POLL and power-save support. All wireless drivers need to be 468 recompiled to work with the new kernel. 469 47020120913: 471 The random(4) support for the VIA hardware random number 472 generator (`PADLOCK') is no longer enabled unconditionally. 473 Add the padlock_rng device in the custom kernel config if 474 needed. The GENERIC kernels on i386 and amd64 do include the 475 device, so the change only affects the custom kernel 476 configurations. 477 47820120908: 479 The pf(4) packet filter ABI has been changed. pfctl(8) and 480 snmp_pf module need to be recompiled to work with new kernel. 481 48220120828: 483 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 484 to -HEAD. Pools that have empty_bpobj in active state can not be 485 imported read-write with ZFS implementations that do not support 486 this feature. For more information read the zpool-features(5) 487 manual page. 488 48920120727: 490 The sparc64 ZFS loader has been changed to no longer try to auto- 491 detect ZFS providers based on diskN aliases but now requires these 492 to be explicitly listed in the OFW boot-device environment variable. 493 49420120712: 495 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 496 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 497 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 498 49920120712: 500 The following sysctls and tunables have been renamed for consistency 501 with other variables: 502 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 503 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 504 50520120628: 506 The sort utility has been replaced with BSD sort. For now, GNU sort 507 is also available as "gnusort" or the default can be set back to 508 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 509 installed as "bsdsort". 510 51120120611: 512 A new version of ZFS (pool version 5000) has been merged to -HEAD. 513 Starting with this version the old system of ZFS pool versioning 514 is superseded by "feature flags". This concept enables forward 515 compatibility against certain future changes in functionality of ZFS 516 pools. The first read-only compatible "feature flag" for ZFS pools 517 is named "com.delphix:async_destroy". For more information 518 read the new zpool-features(5) manual page. 519 Please refer to the "ZFS notes" section of this file for information 520 on upgrading boot ZFS pools. 521 52220120417: 523 The malloc(3) implementation embedded in libc now uses sources imported 524 as contrib/jemalloc. The most disruptive API change is to 525 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 526 delete it prior to installworld, and optionally re-create it using the 527 new format after rebooting. See malloc.conf(5) for details 528 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 529 NAMESPACE section). 530 53120120328: 532 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 533 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 534 now spelled mips. This is to aid compatibility with third-party 535 software that expects this naming scheme in uname(3). Little-endian 536 settings are unchanged. If you are updating a big-endian mips64 machine 537 from before this change, you may need to set MACHINE_ARCH=mips64 in 538 your environment before the new build system will recognize your machine. 539 54020120306: 541 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 542 platforms. 543 54420120229: 545 Now unix domain sockets behave "as expected" on nullfs(5). Previously 546 nullfs(5) did not pass through all behaviours to the underlying layer, 547 as a result if we bound to a socket on the lower layer we could connect 548 only to the lower path; if we bound to the upper layer we could connect 549 only to the upper path. The new behavior is one can connect to both the 550 lower and the upper paths regardless what layer path one binds to. 551 55220120211: 553 The getifaddrs upgrade path broken with 20111215 has been restored. 554 If you have upgraded in between 20111215 and 20120209 you need to 555 recompile libc again with your kernel. You still need to recompile 556 world to be able to configure CARP but this restriction already 557 comes from 20111215. 558 55920120114: 560 The set_rcvar() function has been removed from /etc/rc.subr. All 561 base and ports rc.d scripts have been updated, so if you have a 562 port installed with a script in /usr/local/etc/rc.d you can either 563 hand-edit the rcvar= line, or reinstall the port. 564 565 An easy way to handle the mass-update of /etc/rc.d: 566 rm /etc/rc.d/* && mergemaster -i 567 56820120109: 569 panic(9) now stops other CPUs in the SMP systems, disables interrupts 570 on the current CPU and prevents other threads from running. 571 This behavior can be reverted using the kern.stop_scheduler_on_panic 572 tunable/sysctl. 573 The new behavior can be incompatible with kern.sync_on_panic. 574 57520111215: 576 The carp(4) facility has been changed significantly. Configuration 577 of the CARP protocol via ifconfig(8) has changed, as well as format 578 of CARP events submitted to devd(8) has changed. See manual pages 579 for more information. The arpbalance feature of carp(4) is currently 580 not supported anymore. 581 582 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 583 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 584 need to be recompiled. 585 58620111122: 587 The acpi_wmi(4) status device /dev/wmistat has been renamed to 588 /dev/wmistat0. 589 59020111108: 591 The option VFS_ALLOW_NONMPSAFE option has been added in order to 592 explicitely support non-MPSAFE filesystems. 593 It is on by default for all supported platform at this present 594 time. 595 59620111101: 597 The broken amd(4) driver has been replaced with esp(4) in the amd64, 598 i386 and pc98 GENERIC kernel configuration files. 599 60020110930: 601 sysinstall has been removed 602 60320110923: 604 The stable/9 branch created in subversion. This corresponds to the 605 RELENG_9 branch in CVS. 606 60720110913: 608 This commit modifies vfs_register() so that it uses a hash 609 calculation to set vfc_typenum, which is enabled by default. 610 The first time a system is booted after this change, the 611 vfc_typenum values will change for all file systems. The 612 main effect of this is a change to the NFS server file handles 613 for file systems that use vfc_typenum in their fsid, such as ZFS. 614 It will, however, prevent vfc_typenum from changing when file 615 systems are loaded in a different order for subsequent reboots. 616 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 617 until you are ready to remount all NFS clients after a reboot. 618 61920110828: 620 Bump the shared library version numbers for libraries that 621 do not use symbol versioning, have changed the ABI compared 622 to stable/8 and which shared library version was not bumped. 623 Done as part of 9.0-RELEASE cycle. 624 62520110815: 626 During the merge of Capsicum features, the fget(9) KPI was modified. 627 This may require the rebuilding of out-of-tree device drivers -- 628 issues have been reported specifically with the nVidia device driver. 629 __FreeBSD_version is bumped to 900041. 630 631 Also, there is a period between 20110811 and 20110814 where the 632 special devices /dev/{stdin,stdout,stderr} did not work correctly. 633 Building world from a kernel during that window may not work. 634 63520110628: 636 The packet filter (pf) code has been updated to OpenBSD 4.5. 637 You need to update userland tools to be in sync with kernel. 638 This update breaks backward compatibility with earlier pfsync(4) 639 versions. Care must be taken when updating redundant firewall setups. 640 64120110608: 642 The following sysctls and tunables are retired on x86 platforms: 643 machdep.hlt_cpus 644 machdep.hlt_logical_cpus 645 The following sysctl is retired: 646 machdep.hyperthreading_allowed 647 The sysctls were supposed to provide a way to dynamically offline and 648 online selected CPUs on x86 platforms, but the implementation has not 649 been reliable especially with SCHED_ULE scheduler. 650 machdep.hyperthreading_allowed tunable is still available to ignore 651 hyperthreading CPUs at OS level. 652 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 653 where X is an APIC ID of a CPU. Be advised, though, that disabling 654 CPUs in non-uniform fashion will result in non-uniform topology and 655 may lead to sub-optimal system performance with SCHED_ULE, which is 656 a default scheduler. 657 65820110607: 659 cpumask_t type is retired and cpuset_t is used in order to describe 660 a mask of CPUs. 661 66220110531: 663 Changes to ifconfig(8) for dynamic address family detection mandate 664 that you are running a kernel of 20110525 or later. Make sure to 665 follow the update procedure to boot a new kernel before installing 666 world. 667 66820110513: 669 Support for sun4v architecture is officially dropped 670 67120110503: 672 Several KPI breaking changes have been committed to the mii(4) layer, 673 the PHY drivers and consequently some Ethernet drivers using mii(4). 674 This means that miibus.ko and the modules of the affected Ethernet 675 drivers need to be recompiled. 676 677 Note to kernel developers: Given that the OUI bit reversion problem 678 was fixed as part of these changes all mii(4) commits related to OUIs, 679 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 680 handling, no longer can be merged verbatim to stable/8 and previous 681 branches. 682 68320110430: 684 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 685 into their kernel configurations along with 'device pci'. 686 68720110427: 688 The default NFS client is now the new NFS client, so fstype "newnfs" 689 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 690 Although mounts via fstype "nfs" will usually work without userland 691 changes, it is recommended that the mount(8) and mount_nfs(8) 692 commands be rebuilt from sources and that a link to mount_nfs called 693 mount_oldnfs be created. The new client is compiled into the 694 kernel with "options NFSCL" and this is needed for diskless root 695 file systems. The GENERIC kernel configs have been changed to use 696 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 697 To use the regular/old client, you can "mount -t oldnfs ...". For 698 a diskless root file system, you must also include a line like: 699 700 vfs.root.mountfrom="oldnfs:" 701 702 in the boot/loader.conf on the root fs on the NFS server to make 703 a diskless root fs use the old client. 704 70520110424: 706 The GENERIC kernels for all architectures now default to the new 707 CAM-based ATA stack. It means that all legacy ATA drivers were 708 removed and replaced by respective CAM drivers. If you are using 709 ATA device names in /etc/fstab or other places, make sure to update 710 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 711 where 'Y's are the sequential numbers starting from zero for each type 712 in order of detection, unless configured otherwise with tunables, 713 see cam(4)). There will be symbolic links created in /dev/ to map 714 old adX devices to the respective adaY. They should provide basic 715 compatibility for file systems mounting in most cases, but they do 716 not support old user-level APIs and do not have respective providers 717 in GEOM. Consider using updated management tools with new device names. 718 719 It is possible to load devices ahci, ata, siis and mvs as modules, 720 but option ATA_CAM should remain in kernel configuration to make ata 721 module work as CAM driver supporting legacy ATA controllers. Device ata 722 still can be used in modular fashion (atacore + ...). Modules atadisk 723 and atapi* are not used and won't affect operation in ATA_CAM mode. 724 Note that to use CAM-based ATA kernel should include CAM devices 725 scbus, pass, da (or explicitly ada), cd and optionally others. All of 726 them are parts of the cam module. 727 728 ataraid(4) functionality is now supported by the RAID GEOM class. 729 To use it you can load geom_raid kernel module and use graid(8) tool 730 for management. Instead of /dev/arX device names, use /dev/raid/rX. 731 732 No kernel config options or code have been removed, so if a problem 733 arises, please report it and optionally revert to the old ATA stack. 734 In order to do it you can remove from the kernel config: 735 options ATA_CAM 736 device ahci 737 device mvs 738 device siis 739 , and instead add back: 740 device atadisk # ATA disk drives 741 device ataraid # ATA RAID drives 742 device atapicd # ATAPI CDROM drives 743 device atapifd # ATAPI floppy drives 744 device atapist # ATAPI tape drives 745 74620110423: 747 The default NFS server has been changed to the new server, which 748 was referred to as the experimental server. If you need to switch 749 back to the old NFS server, you must now put the "-o" option on 750 both the mountd and nfsd commands. This can be done using the 751 mountd_flags and nfs_server_flags rc.conf variables until an 752 update to the rc scripts is committed, which is coming soon. 753 75420110418: 755 The GNU Objective-C runtime library (libobjc), and other Objective-C 756 related components have been removed from the base system. If you 757 require an Objective-C library, please use one of the available ports. 758 75920110331: 760 ath(4) has been split into bus- and device- modules. if_ath contains 761 the HAL, the TX rate control and the network device code. if_ath_pci 762 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 763 contains the AHB glue. Users need to load both if_ath_pci and if_ath 764 in order to use ath on everything else. 765 766 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 767 need to load if_ath and if_ath_pci for ath(4) operation. 768 76920110314: 770 As part of the replacement of sysinstall, the process of building 771 release media has changed significantly. For details, please re-read 772 release(7), which has been updated to reflect the new build process. 773 77420110218: 775 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 776 is the last available version under GPLv2. It brings a number of new 777 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 778 4.1 and SSE 4.2), better support for powerpc64, a number of new 779 directives, and lots of other small improvements. See the ChangeLog 780 file in contrib/binutils for the full details. 781 78220110218: 783 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 784 compliant, and will now use half of hash for authentication. 785 This will break interoperability with all stacks (including all 786 actual FreeBSD versions) who implement 787 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 788 authentication). 789 The only workaround with such peers is to use another HMAC 790 algorithm for IPsec ("phase 2") authentication. 791 79220110207: 793 Remove the uio_yield prototype and symbol. This function has 794 been misnamed since it was introduced and should not be 795 globally exposed with this name. The equivalent functionality 796 is now available using kern_yield(curthread->td_user_pri). 797 The function remains undocumented. 798 79920110112: 800 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 801 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 802 for scalar sysctls is defined but disabled. Code that needs 803 UQUAD to pass the type checking that must compile on older 804 systems where the define is not present can check against 805 __FreeBSD_version >= 900030. 806 807 The system dialog(1) has been replaced with a new version previously 808 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 809 with the previous version, but the libdialog associated with it has 810 a largely incompatible API. As such, the original version of libdialog 811 will be kept temporarily as libodialog, until its base system consumers 812 are replaced or updated. Bump __FreeBSD_version to 900030. 813 81420110103: 815 If you are trying to run make universe on a -stable system, and you get 816 the following warning: 817 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 818 unknown. config(8) likely too old." 819 or something similar to it, then you must upgrade your -stable system 820 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 821 stable/8) or build the config from the latest stable/8 branch and 822 install it on your system. 823 824 Prior to this date, building a current universe on 8-stable system from 825 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 826 error in the first kernel build phase. A new config on those old 827 systems will fix that problem for older versions of -current. 828 82920101228: 830 The TCP stack has been modified to allow Khelp modules to interact with 831 it via helper hook points and store per-connection data in the TCP 832 control block. Bump __FreeBSD_version to 900029. User space tools that 833 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 834 be recompiled. 835 83620101114: 837 Generic IEEE 802.3 annex 31B full duplex flow control support has been 838 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 839 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 840 to take advantage of it instead of using custom implementations. This 841 means that these drivers now no longer unconditionally advertise 842 support for flow control but only do so if flow control is a selected 843 media option. This was implemented in the generic support that way in 844 order to allow flow control to be switched on and off via ifconfig(8) 845 with the PHY specific default to typically off in order to protect 846 from unwanted effects. Consequently, if you used flow control with 847 one of the above mentioned drivers you now need to explicitly enable 848 it, for example via: 849 ifconfig bge0 media auto mediaopt flowcontrol 850 851 Along with the above mentioned changes generic support for setting 852 1000baseT master mode also has been added and brgphy(4), ciphy(4), 853 e1000phy(4) as well as ip1000phy(4) have been converted to take 854 advantage of it. This means that these drivers now no longer take the 855 link0 parameter for selecting master mode but the master media option 856 has to be used instead, for example like in the following: 857 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 858 859 Selection of master mode now is also available with all other PHY 860 drivers supporting 1000baseT. 861 86220101111: 863 The TCP stack has received a significant update to add support for 864 modularised congestion control and generally improve the clarity of 865 congestion control decisions. Bump __FreeBSD_version to 900025. User 866 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 867 sockstat) need to be recompiled. 868 86920101002: 870 The man(1) utility has been replaced by a new version that no longer 871 uses /etc/manpath.config. Please consult man.conf(5) for how to 872 migrate local entries to the new format. 873 87420100928: 875 The copyright strings printed by login(1) and sshd(8) at the time of a 876 new connection have been removed to follow other operating systems and 877 upstream sshd. 878 87920100915: 880 A workaround for a fixed ld bug has been removed in kernel code, 881 so make sure that your system ld is built from sources after 882 revision 210245 from 2010-07-19 (r211583 if building head kernel 883 on stable/8, r211584 for stable/7; both from 2010-08-21). 884 A symptom of incorrect ld version is different addresses for 885 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 886 88720100913: 888 The $ipv6_prefer variable in rc.conf(5) has been split into 889 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 890 891 The $ip6addrctl_policy is a variable to choose a pre-defined 892 address selection policy set by ip6addrctl(8). A value 893 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 894 default is "AUTO". 895 896 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 897 flag (see an entry of 20090926) is set on an interface with no 898 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 899 security reason. If you want IPv6 link-local address on all 900 interfaces by default, set this to "YES". 901 902 The old ipv6_prefer="YES" is equivalent to 903 ipv6_activate_all_interfaces="YES" and 904 ip6addrctl_policy="ipv6_prefer". 905 90620100913: 907 DTrace has grown support for userland tracing. Due to this, DTrace is 908 now i386 and amd64 only. 909 dtruss(1) is now installed by default on those systems and a new 910 kernel module is needed for userland tracing: fasttrap. 911 No changes to your kernel config file are necessary to enable 912 userland tracing, but you might consider adding 'STRIP=' and 913 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 914 to have informative userland stack traces in DTrace (ustack). 915 91620100725: 917 The acpi_aiboost(4) driver has been removed in favor of the new 918 aibs(4) driver. You should update your kernel configuration file. 919 92020100722: 921 BSD grep has been imported to the base system and it is built by 922 default. It is completely BSD licensed, highly GNU-compatible, uses 923 less memory than its GNU counterpart and has a small codebase. 924 However, it is slower than its GNU counterpart, which is mostly 925 noticeable for larger searches, for smaller ones it is measurable 926 but not significant. The reason is complex, the most important factor 927 is that we lack a modern and efficient regex library and GNU 928 overcomes this by optimizing the searches internally. Future work 929 on improving the regex performance is planned, for the meantime, 930 users that need better performance, can build GNU grep instead by 931 setting the WITH_GNU_GREP knob. 932 93320100713: 934 Due to the import of powerpc64 support, all existing powerpc kernel 935 configuration files must be updated with a machine directive like this: 936 machine powerpc powerpc 937 938 In addition, an updated config(8) is required to build powerpc kernels 939 after this change. 940 94120100713: 942 A new version of ZFS (version 15) has been merged to -HEAD. 943 This version uses a python library for the following subcommands: 944 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 945 For full functionality of these commands the following port must 946 be installed: sysutils/py-zfs 947 94820100429: 949 'vm_page's are now hashed by physical address to an array of mutexes. 950 Currently this is only used to serialize access to hold_count. Over 951 time the page queue mutex will be peeled away. This changes the size 952 of pmap on every architecture. And requires all callers of vm_page_hold 953 and vm_page_unhold to be updated. 954 95520100402: 956 WITH_CTF can now be specified in src.conf (not recommended, there 957 are some problems with static executables), make.conf (would also 958 affect ports which do not use GNU make and do not override the 959 compile targets) or in the kernel config (via "makeoptions 960 WITH_CTF=yes"). 961 When WITH_CTF was specified there before this was silently ignored, 962 so make sure that WITH_CTF is not used in places which could lead 963 to unwanted behavior. 964 96520100311: 966 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 967 to allow 32-bit compatibility on non-x86 platforms. All kernel 968 configurations on amd64 and ia64 platforms using these options must 969 be modified accordingly. 970 97120100113: 972 The utmp user accounting database has been replaced with utmpx, 973 the user accounting interface standardized by POSIX. 974 Unfortunately the semantics of utmp and utmpx don't match, 975 making it practically impossible to support both interfaces. 976 The user accounting database is used by tools like finger(1), 977 last(1), talk(1), w(1) and ac(8). 978 979 All applications in the base system use utmpx. This means only 980 local binaries (e.g. from the ports tree) may still use these 981 utmp database files. These applications must be rebuilt to make 982 use of utmpx. 983 984 After the system has been upgraded, it is safe to remove the old 985 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 986 assuming their contents is of no importance anymore. Old wtmp 987 databases can only be used by last(1) and ac(8) after they have 988 been converted to the new format using wtmpcvt(1). 989 99020100108: 991 Introduce the kernel thread "deadlock resolver" (which can be enabled 992 via the DEADLKRES option, see NOTES for more details) and the 993 sleepq_type() function for sleepqueues. 994 99520091202: 996 The rc.firewall and rc.firewall6 were unified, and 997 rc.firewall6 and rc.d/ip6fw were removed. 998 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 999 variables are obsoleted. Instead, the following new rc 1000 variables are added to rc.d/ipfw: 1001 1002 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1003 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1004 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1005 1006 The meanings correspond to the relevant IPv4 variables. 1007 100820091125: 1009 8.0-RELEASE. 1010 101120091113: 1012 The default terminal emulation for syscons(4) has been changed 1013 from cons25 to xterm on all platforms except pc98. This means 1014 that the /etc/ttys file needs to be updated to ensure correct 1015 operation of applications on the console. 1016 1017 The terminal emulation style can be toggled per window by using 1018 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1019 options can be used to change the compile-time default back to 1020 cons25. 1021 1022 To prevent graphical artifacts, make sure the TERM environment 1023 variable is set to match the terminal emulation that is being 1024 performed by syscons(4). 1025 102620091109: 1027 The layout of the structure ieee80211req_scan_result has changed. 1028 Applications that require wireless scan results (e.g. ifconfig(8)) 1029 from net80211 need to be recompiled. 1030 1031 Applications such as wpa_supplicant(8) may require a full world 1032 build without using NO_CLEAN in order to get synchronized with the 1033 new structure. 1034 103520091025: 1036 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1037 There's one kernel module for each firmware. Adding "device iwnfw" 1038 to the kernel configuration file means including all three firmware 1039 images inside the kernel. If you want to include just the one for 1040 your wireless card, use the devices iwn4965fw, iwn5000fw or 1041 iwn5150fw. 1042 104320090926: 1044 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1045 into rc.d/netif. The changes are the following: 1046 1047 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1048 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1049 Note that both variables need the "inet6" keyword at the head. 1050 1051 Do not set $ipv6_network_interfaces manually if you do not 1052 understand what you are doing. It is not needed in most cases. 1053 1054 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1055 they are obsolete. 1056 1057 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1058 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1059 1060 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1061 all configured interfaces have "inet6 accept_rtadv" in the 1062 $ifconfig_IF_ipv6. These are for backward compatibility. 1063 1064 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1065 functionality of interfaces with no corresponding 1066 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1067 and the default address selection policy of ip6addrctl(8) 1068 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1069 Note that if you want to configure IPv6 functionality on the 1070 disabled interfaces after boot, first you need to clear the flag by 1071 using ifconfig(8) like: 1072 1073 ifconfig em0 inet6 -ifdisabled 1074 1075 If YES, the default address selection policy is set as 1076 IPv6-preferred. 1077 1078 The default value of $ipv6_prefer is NO. 1079 1080 4. If your system need to receive Router Advertisement messages, 1081 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1082 scripts automatically invoke rtsol(8) when the interface becomes 1083 UP. The Router Advertisement messages are used for SLAAC 1084 (State-Less Address AutoConfiguration). 1085 108620090922: 1087 802.11s D3.03 support was committed. This is incompatible with the 1088 previous code, which was based on D3.0. 1089 109020090912: 1091 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1092 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1093 control whether accepting Router Advertisement messages or not. 1094 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1095 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1096 The ifconfig(8) utility now supports these flags. 1097 109820090910: 1099 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1100 mount(8) and -a option for df(1) to see them. 1101 110220090825: 1103 The old tunable hw.bus.devctl_disable has been superseded by 1104 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1105 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1106 is 1000. 1107 110820090813: 1109 Remove the option STOP_NMI. The default action is now to use NMI only 1110 for KDB via the newly introduced function stop_cpus_hard() and 1111 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1112 111320090803: 1114 The stable/8 branch created in subversion. This corresponds to the 1115 RELENG_8 branch in CVS. 1116 111720090719: 1118 Bump the shared library version numbers for all libraries that do not 1119 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1120 __FreeBSD_version to 800105. 1121 112220090714: 1123 Due to changes in the implementation of virtual network stack support, 1124 all network-related kernel modules must be recompiled. As this change 1125 breaks the ABI, bump __FreeBSD_version to 800104. 1126 112720090713: 1128 The TOE interface to the TCP syncache has been modified to remove 1129 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1130 The cxgb driver is the only TOE consumer affected by this change, and 1131 needs to be recompiled along with the kernel. As this change breaks 1132 the ABI, bump __FreeBSD_version to 800103. 1133 113420090712: 1135 Padding has been added to struct tcpcb, sackhint and tcpstat in 1136 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1137 maintaining the ABI. However, this change breaks the ABI, so bump 1138 __FreeBSD_version to 800102. User space tools that rely on the size of 1139 any of these structs (e.g. sockstat) need to be recompiled. 1140 114120090630: 1142 The NFS_LEGACYRPC option has been removed along with the old kernel 1143 RPC implementation that this option selected. Kernel configurations 1144 may need to be adjusted. 1145 114620090629: 1147 The network interface device nodes at /dev/net/<interface> have been 1148 removed. All ioctl operations can be performed the normal way using 1149 routing sockets. The kqueue functionality can generally be replaced 1150 with routing sockets. 1151 115220090628: 1153 The documentation from the FreeBSD Documentation Project (Handbook, 1154 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1155 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1156 115720090624: 1158 The ABI of various structures related to the SYSV IPC API have been 1159 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1160 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1161 800100. 1162 116320090622: 1164 Layout of struct vnet has changed as routing related variables were 1165 moved to their own Vimage module. Modules need to be recompiled. Bump 1166 __FreeBSD_version to 800099. 1167 116820090619: 1169 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1170 respectively. As long as no more than 16 groups per process are used, 1171 no changes should be visible. When more than 16 groups are used, old 1172 binaries may fail if they call getgroups() or getgrouplist() with 1173 statically sized storage. Recompiling will work around this, but 1174 applications should be modified to use dynamically allocated storage 1175 for group arrays as POSIX.1-2008 does not cap an implementation's 1176 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1177 1178 NFS and portalfs mounts may also be affected as the list of groups is 1179 truncated to 16. Users of NFS who use more than 16 groups, should 1180 take care that negative group permissions are not used on the exported 1181 file systems as they will not be reliable unless a GSSAPI based 1182 authentication method is used. 1183 118420090616: 1185 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1186 option compiles in the support for adaptive spinning for lockmgrs 1187 which want to enable it. The lockinit() function now accepts the flag 1188 LK_ADAPTIVE in order to make the lock object subject to adaptive 1189 spinning when both held in write and read mode. 1190 119120090613: 1192 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1193 changed. User applications that use this ioctl need to be rebuilt. 1194 119520090611: 1196 The layout of struct thread has changed. Kernel and modules need to 1197 be rebuilt. 1198 119920090608: 1200 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1201 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1202 120320090602: 1204 window(1) has been removed from the base system. It can now be 1205 installed from ports. The port is called misc/window. 1206 120720090601: 1208 The way we are storing and accessing `routing table' entries has 1209 changed. Programs reading the FIB, like netstat, need to be 1210 re-compiled. 1211 121220090601: 1213 A new netisr implementation has been added for FreeBSD 8. Network 1214 file system modules, such as igmp, ipdivert, and others, should be 1215 rebuilt. 1216 Bump __FreeBSD_version to 800096. 1217 121820090530: 1219 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1220 more valid. 1221 122220090530: 1223 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1224 Bump __FreeBSD_version to 800094. 1225 122620090529: 1227 Add mnt_xflag field to 'struct mount'. File system modules need to be 1228 rebuilt. 1229 Bump __FreeBSD_version to 800093. 1230 123120090528: 1232 The compiling option ADAPTIVE_SX has been retired while it has been 1233 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1234 The KPI for sx_init_flags() changes as accepting flags: 1235 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1236 been introduced in order to handle the reversed logic. 1237 Bump __FreeBSD_version to 800092. 1238 123920090527: 1240 Add support for hierarchical jails. Remove global securelevel. 1241 Bump __FreeBSD_version to 800091. 1242 124320090523: 1244 The layout of struct vnet_net has changed, therefore modules 1245 need to be rebuilt. 1246 Bump __FreeBSD_version to 800090. 1247 124820090523: 1249 The newly imported zic(8) produces a new format in the output. Please 1250 run tzsetup(8) to install the newly created data to /etc/localtime. 1251 125220090520: 1253 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1254 hw.usb.* and is now consistent again with previous releases. 1255 125620090520: 1257 802.11 monitor mode support was revised and driver api's were changed. 1258 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1259 of DLT_IEEE802_11. No user-visible data structures were changed but 1260 applications that use DLT_IEEE802_11 may require changes. 1261 Bump __FreeBSD_version to 800088. 1262 126320090430: 1264 The layout of the following structs has changed: sysctl_oid, 1265 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1266 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1267 panics may be experienced. World rebuild is required for 1268 correctly checking networking state from userland. 1269 Bump __FreeBSD_version to 800085. 1270 127120090429: 1272 MLDv2 and Source-Specific Multicast (SSM) have been merged 1273 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1274 The implementation of SSM within FreeBSD's IPv6 stack closely 1275 follows the IPv4 implementation. 1276 1277 For kernel developers: 1278 1279 * The most important changes are that the ip6_output() and 1280 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1281 and this lock has been downgraded to a non-recursive mutex. 1282 1283 * As with the changes to the IPv4 stack to support SSM, filtering 1284 of inbound multicast traffic must now be performed by transport 1285 protocols within the IPv6 stack. This does not apply to TCP and 1286 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1287 1288 * The KPIs used by IPv6 multicast are similar to those used by 1289 the IPv4 stack, with the following differences: 1290 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1291 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1292 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1293 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1294 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1295 for MLDv1 have an additional 'timer' argument which is used to 1296 jitter the initial membership report for the solicited-node 1297 multicast membership on-link. 1298 * This is not strictly needed for MLDv2, which already jitters 1299 its report transmissions. However, the 'timer' argument is 1300 preserved in case MLDv1 is active on the interface. 1301 1302 * The KAME linked-list based IPv6 membership implementation has 1303 been refactored to use a vector similar to that used by the IPv4 1304 stack. 1305 Code which maintains a list of its own multicast memberships 1306 internally, e.g. carp, has been updated to reflect the new 1307 semantics. 1308 1309 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1310 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1311 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1312 implementation constraint which needs to be addressed in HEAD. 1313 1314 For application developers: 1315 1316 * The changes are broadly similar to those made for the IPv4 1317 stack. 1318 1319 * The use of IPv4 and IPv6 multicast socket options on the same 1320 socket, using mapped addresses, HAS NOT been tested or supported. 1321 1322 * There are a number of issues with the implementation of various 1323 IPv6 multicast APIs which need to be resolved in the API surface 1324 before the implementation is fully compatible with KAME userland 1325 use, and these are mostly to do with interface index treatment. 1326 1327 * The literature available discusses the use of either the delta / ASM 1328 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1329 using setsourcefilter(3)/getsourcefilter(3). For more information 1330 please refer to RFC 3768, 'Socket Interface Extensions for 1331 Multicast Source Filters'. 1332 1333 * Applications which use the published RFC 3678 APIs should be fine. 1334 1335 For systems administrators: 1336 1337 * The mtest(8) utility has been refactored to support IPv6, in 1338 addition to IPv4. Interface addresses are no longer accepted 1339 as arguments, their names must be used instead. The utility 1340 will map the interface name to its first IPv4 address as 1341 returned by getifaddrs(3). 1342 1343 * The ifmcstat(8) utility has also been updated to print the MLDv2 1344 endpoint state and source filter lists via sysctl(3). 1345 1346 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1347 loopback of IPv6 multicast datagrams by default; it defaults to 1 1348 to preserve the existing behaviour. Disabling multicast loopback is 1349 recommended for optimal system performance. 1350 1351 * The IPv6 MROUTING code has been changed to examine this sysctl 1352 instead of attempting to perform a group lookup before looping 1353 back forwarded datagrams. 1354 1355 Bump __FreeBSD_version to 800084. 1356 135720090422: 1358 Implement low-level Bluetooth HCI API. 1359 Bump __FreeBSD_version to 800083. 1360 136120090419: 1362 The layout of struct malloc_type, used by modules to register new 1363 memory allocation types, has changed. Most modules will need to 1364 be rebuilt or panics may be experienced. 1365 Bump __FreeBSD_version to 800081. 1366 136720090415: 1368 Anticipate overflowing inp_flags - add inp_flags2. 1369 This changes most offsets in inpcb, so checking v4 connection 1370 state will require a world rebuild. 1371 Bump __FreeBSD_version to 800080. 1372 137320090415: 1374 Add an llentry to struct route and struct route_in6. Modules 1375 embedding a struct route will need to be recompiled. 1376 Bump __FreeBSD_version to 800079. 1377 137820090414: 1379 The size of rt_metrics_lite and by extension rtentry has changed. 1380 Networking administration apps will need to be recompiled. 1381 The route command now supports show as an alias for get, weighting 1382 of routes, sticky and nostick flags to alter the behavior of stateful 1383 load balancing. 1384 Bump __FreeBSD_version to 800078. 1385 138620090408: 1387 Do not use Giant for kbdmux(4) locking. This is wrong and 1388 apparently causing more problems than it solves. This will 1389 re-open the issue where interrupt handlers may race with 1390 kbdmux(4) in polling mode. Typical symptoms include (but 1391 not limited to) duplicated and/or missing characters when 1392 low level console functions (such as gets) are used while 1393 interrupts are enabled (for example geli password prompt, 1394 mountroot prompt etc.). Disabling kbdmux(4) may help. 1395 139620090407: 1397 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1398 kernel modules referencing any of the above need to be recompiled. 1399 Bump __FreeBSD_version to 800075. 1400 140120090320: 1402 GEOM_PART has become the default partition slicer for storage devices, 1403 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1404 introduces some changes: 1405 1406 MSDOS/EBR: the devices created from MSDOS extended partition entries 1407 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1408 to devices with offset-based names. fstabs may need to be modified. 1409 1410 BSD: the "geometry does not match label" warning is harmless in most 1411 cases but it points to problems in file system misalignment with 1412 disk geometry. The "c" partition is now implicit, covers the whole 1413 top-level drive and cannot be (mis)used by users. 1414 1415 General: Kernel dumps are now not allowed to be written to devices 1416 whose partition types indicate they are meant to be used for file 1417 systems (or, in case of MSDOS partitions, as something else than 1418 the "386BSD" type). 1419 1420 Most of these changes date approximately from 200812. 1421 142220090319: 1423 The uscanner(4) driver has been removed from the kernel. This follows 1424 Linux removing theirs in 2.6 and making libusb the default interface 1425 (supported by sane). 1426 142720090319: 1428 The multicast forwarding code has been cleaned up. netstat(1) 1429 only relies on KVM now for printing bandwidth upcall meters. 1430 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1431 ip6_mroute_mod respectively. The config(5) options for statically 1432 compiling this code remain the same, i.e. 'options MROUTING'. 1433 143420090315: 1435 Support for the IFF_NEEDSGIANT network interface flag has been 1436 removed, which means that non-MPSAFE network device drivers are no 1437 longer supported. In particular, if_ar, if_sr, and network device 1438 drivers from the old (legacy) USB stack can no longer be built or 1439 used. 1440 144120090313: 1442 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1443 a bunch of new language catalog files have also been added. 1444 This means that some common libc messages are now localized and 1445 they depend on the LC_MESSAGES environmental variable. 1446 144720090313: 1448 The k8temp(4) driver has been renamed to amdtemp(4) since 1449 support for Family 10 and Family 11 CPU families was added. 1450 145120090309: 1452 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1453 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1454 1455 For kernel developers, the most important changes are that the 1456 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1457 and this lock has been downgraded to a non-recursive mutex. 1458 1459 Transport protocols (UDP, Raw IP) are now responsible for filtering 1460 inbound multicast traffic according to group membership and source 1461 filters. The imo_multicast_filter() KPI exists for this purpose. 1462 Transports which do not use multicast (SCTP, TCP) already reject 1463 multicast by default. Forwarding and receive performance may improve 1464 as a mutex acquisition is no longer needed in the ip_input() 1465 low-level input path. in_addmulti() and in_delmulti() are shimmed 1466 to new KPIs which exist to support SSM in-kernel. 1467 1468 For application developers, it is recommended that loopback of 1469 multicast datagrams be disabled for best performance, as this 1470 will still cause the lock to be taken for each looped-back 1471 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1472 be tuned to 0 to disable loopback by default; it defaults to 1 1473 to preserve the existing behaviour. 1474 1475 For systems administrators, to obtain best performance with 1476 multicast reception and multiple groups, it is always recommended 1477 that a card with a suitably precise hash filter is used. Hash 1478 collisions will still result in the lock being taken within the 1479 transport protocol input path to check group membership. 1480 1481 If deploying FreeBSD in an environment with IGMP snooping switches, 1482 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1483 enabled; this forces 224.0.0.0/24 group membership to be announced 1484 via IGMP. 1485 1486 The size of 'struct igmpstat' has changed; netstat needs to be 1487 recompiled to reflect this. 1488 Bump __FreeBSD_version to 800070. 1489 149020090309: 1491 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1492 updated to use it. This requires a buildworld/installworld in order to 1493 update the library and dependencies (usbconfig, etc). Its advisable to 1494 rebuild all ports which uses libusb. More specific directions are given 1495 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1496 libusb are no longer required and can be removed. 1497 149820090302: 1499 A workaround is committed to allow the creation of System V shared 1500 memory segment of size > 2 GB on the 64-bit architectures. 1501 Due to a limitation of the existing ABI, the shm_segsz member 1502 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1503 wrong for large segments. Note that limits must be explicitly 1504 raised to allow such segments to be created. 1505 150620090301: 1507 The layout of struct ifnet has changed, requiring a rebuild of all 1508 network device driver modules. 1509 151020090227: 1511 The /dev handling for the new USB stack has changed, a 1512 buildworld/installworld is required for libusb20. 1513 151420090223: 1515 The new USB2 stack has now been permanently moved in and all kernel and 1516 module names reverted to their previous values (eg, usb, ehci, ohci, 1517 ums, ...). The old usb stack can be compiled in by prefixing the name 1518 with the letter 'o', the old usb modules have been removed. 1519 Updating entry 20090216 for xorg and 20090215 for libmap may still 1520 apply. 1521 152220090217: 1523 The rc.conf(5) option if_up_delay has been renamed to 1524 defaultroute_delay to better reflect its purpose. If you have 1525 customized this setting in /etc/rc.conf you need to update it to 1526 use the new name. 1527 152820090216: 1529 xorg 7.4 wants to configure its input devices via hald which does not 1530 yet work with USB2. If the keyboard/mouse does not work in xorg then 1531 add 1532 Option "AllowEmptyInput" "off" 1533 to your ServerLayout section. This will cause X to use the configured 1534 kbd and mouse sections from your xorg.conf. 1535 153620090215: 1537 The GENERIC kernels for all architectures now default to the new USB2 1538 stack. No kernel config options or code have been removed so if a 1539 problem arises please report it and optionally revert to the old USB 1540 stack. If you are loading USB kernel modules or have a custom kernel 1541 that includes GENERIC then ensure that usb names are also changed over, 1542 eg uftdi -> usb2_serial_ftdi. 1543 1544 Older programs linked against the ports libusb 0.1 need to be 1545 redirected to the new stack's libusb20. /etc/libmap.conf can 1546 be used for this: 1547 # Map old usb library to new one for usb2 stack 1548 libusb-0.1.so.8 libusb20.so.1 1549 155020090209: 1551 All USB ethernet devices now attach as interfaces under the name ueN 1552 (eg. ue0). This is to provide a predictable name as vendors often 1553 change usb chipsets in a product without notice. 1554 155520090203: 1556 The ichsmb(4) driver has been changed to require SMBus slave 1557 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1558 All of the other SMBus controller drivers require left-justified 1559 slave addresses, so this change makes all the drivers provide the 1560 same interface. 1561 156220090201: 1563 INET6 statistics (struct ip6stat) was updated. 1564 netstat(1) needs to be recompiled. 1565 156620090119: 1567 NTFS has been removed from GENERIC kernel on amd64 to match 1568 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1569 will load ntfs.ko module automatically when NTFS support is 1570 actually needed, unless ntfs.ko is not installed or security 1571 level prohibits loading kernel modules. If either is the case, 1572 "options NTFS" has to be added into kernel config. 1573 157420090115: 1575 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1576 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1577 800061. User space tools that rely on the size of struct tcpcb in 1578 tcp_var.h (e.g. sockstat) need to be recompiled. 1579 158020081225: 1581 ng_tty(4) module updated to match the new TTY subsystem. 1582 Due to API change, user-level applications must be updated. 1583 New API support added to mpd5 CVS and expected to be present 1584 in next mpd5.3 release. 1585 158620081219: 1587 With __FreeBSD_version 800060 the makefs tool is part of 1588 the base system (it was a port). 1589 159020081216: 1591 The afdata and ifnet locks have been changed from mutexes to 1592 rwlocks, network modules will need to be re-compiled. 1593 159420081214: 1595 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1596 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1597 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1598 architecture and 40 bytes on 64-bit architecture. The userland 1599 applications "arp" and "ndp" have been updated accordingly. 1600 The output from "netstat -r" shows only routing entries and 1601 none of the L2 information. 1602 160320081130: 1604 __FreeBSD_version 800057 marks the switchover from the 1605 binary ath hal to source code. Users must add the line: 1606 1607 options AH_SUPPORT_AR5416 1608 1609 to their kernel config files when specifying: 1610 1611 device ath_hal 1612 1613 The ath_hal module no longer exists; the code is now compiled 1614 together with the driver in the ath module. It is now 1615 possible to tailor chip support (i.e. reduce the set of chips 1616 and thereby the code size); consult ath_hal(4) for details. 1617 161820081121: 1619 __FreeBSD_version 800054 adds memory barriers to 1620 <machine/atomic.h>, new interfaces to ifnet to facilitate 1621 multiple hardware transmit queues for cards that support 1622 them, and a lock-less ring-buffer implementation to 1623 enable drivers to more efficiently manage queueing of 1624 packets. 1625 162620081117: 1627 A new version of ZFS (version 13) has been merged to -HEAD. 1628 This version has zpool attribute "listsnapshots" off by 1629 default, which means "zfs list" does not show snapshots, 1630 and is the same as Solaris behavior. 1631 163220081028: 1633 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1634 163520081009: 1636 The uhci, ohci, ehci and slhci USB Host controller drivers have 1637 been put into separate modules. If you load the usb module 1638 separately through loader.conf you will need to load the 1639 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1640 controller add the following to loader.conf: 1641 1642 uhci_load="YES" 1643 ehci_load="YES" 1644 164520081009: 1646 The ABI used by the PMC toolset has changed. Please keep 1647 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1648 sync. 1649 165020081009: 1651 atapci kernel module now includes only generic PCI ATA 1652 driver. AHCI driver moved to ataahci kernel module. 1653 All vendor-specific code moved into separate kernel modules: 1654 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1655 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1656 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1657 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1658 165920080820: 1660 The TTY subsystem of the kernel has been replaced by a new 1661 implementation, which provides better scalability and an 1662 improved driver model. Most common drivers have been migrated to 1663 the new TTY subsystem, while others have not. The following 1664 drivers have not yet been ported to the new TTY layer: 1665 1666 PCI/ISA: 1667 cy, digi, rc, rp, sio 1668 1669 USB: 1670 ubser, ucycom 1671 1672 Line disciplines: 1673 ng_h4, ng_tty, ppp, sl, snp 1674 1675 Adding these drivers to your kernel configuration file shall 1676 cause compilation to fail. 1677 167820080818: 1679 ntpd has been upgraded to 4.2.4p5. 1680 168120080801: 1682 OpenSSH has been upgraded to 5.1p1. 1683 1684 For many years, FreeBSD's version of OpenSSH preferred DSA 1685 over RSA for host and user authentication keys. With this 1686 upgrade, we've switched to the vendor's default of RSA over 1687 DSA. This may cause upgraded clients to warn about unknown 1688 host keys even for previously known hosts. Users should 1689 follow the usual procedure for verifying host keys before 1690 accepting the RSA key. 1691 1692 This can be circumvented by setting the "HostKeyAlgorithms" 1693 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1694 command line. 1695 1696 Please note that the sequence of keys offered for 1697 authentication has been changed as well. You may want to 1698 specify IdentityFile in a different order to revert this 1699 behavior. 1700 170120080713: 1702 The sio(4) driver has been removed from the i386 and amd64 1703 kernel configuration files. This means uart(4) is now the 1704 default serial port driver on those platforms as well. 1705 1706 To prevent collisions with the sio(4) driver, the uart(4) driver 1707 uses different names for its device nodes. This means the 1708 onboard serial port will now most likely be called "ttyu0" 1709 instead of "ttyd0". You may need to reconfigure applications to 1710 use the new device names. 1711 1712 When using the serial port as a boot console, be sure to update 1713 /boot/device.hints and /etc/ttys before booting the new kernel. 1714 If you forget to do so, you can still manually specify the hints 1715 at the loader prompt: 1716 1717 set hint.uart.0.at="isa" 1718 set hint.uart.0.port="0x3F8" 1719 set hint.uart.0.flags="0x10" 1720 set hint.uart.0.irq="4" 1721 boot -s 1722 172320080609: 1724 The gpt(8) utility has been removed. Use gpart(8) to partition 1725 disks instead. 1726 172720080603: 1728 The version that Linuxulator emulates was changed from 2.4.2 1729 to 2.6.16. If you experience any problems with Linux binaries 1730 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1731 if it fixes the problem contact emulation mailing list. 1732 173320080525: 1734 ISDN4BSD (I4B) was removed from the src tree. You may need to 1735 update a your kernel configuration and remove relevant entries. 1736 173720080509: 1738 I have checked in code to support multiple routing tables. 1739 See the man pages setfib(1) and setfib(2). 1740 This is a hopefully backwards compatible version, 1741 but to make use of it you need to compile your kernel 1742 with options ROUTETABLES=2 (or more up to 16). 1743 174420080420: 1745 The 802.11 wireless support was redone to enable multi-bss 1746 operation on devices that are capable. The underlying device 1747 is no longer used directly but instead wlanX devices are 1748 cloned with ifconfig. This requires changes to rc.conf files. 1749 For example, change: 1750 ifconfig_ath0="WPA DHCP" 1751 to 1752 wlans_ath0=wlan0 1753 ifconfig_wlan0="WPA DHCP" 1754 see rc.conf(5) for more details. In addition, mergemaster of 1755 /etc/rc.d is highly recommended. Simultaneous update of userland 1756 and kernel wouldn't hurt either. 1757 1758 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1759 modules were merged into the base wlan module. All references 1760 to these modules (e.g. in kernel config files) must be removed. 1761 176220080408: 1763 psm(4) has gained write(2) support in native operation level. 1764 Arbitrary commands can be written to /dev/psm%d and status can 1765 be read back from it. Therefore, an application is responsible 1766 for status validation and error recovery. It is a no-op in 1767 other operation levels. 1768 176920080312: 1770 Support for KSE threading has been removed from the kernel. To 1771 run legacy applications linked against KSE libmap.conf may 1772 be used. The following libmap.conf may be used to ensure 1773 compatibility with any prior release: 1774 1775 libpthread.so.1 libthr.so.1 1776 libpthread.so.2 libthr.so.2 1777 libkse.so.3 libthr.so.3 1778 177920080301: 1780 The layout of struct vmspace has changed. This affects libkvm 1781 and any executables that link against libkvm and use the 1782 kvm_getprocs() function. In particular, but not exclusively, 1783 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1784 The effects are minimal, but it's advisable to upgrade world 1785 nonetheless. 1786 178720080229: 1788 The latest em driver no longer has support in it for the 1789 82575 adapter, this is now moved to the igb driver. The 1790 split was done to make new features that are incompatible 1791 with older hardware easier to do. 1792 179320080220: 1794 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1795 likewise the kernel option is now GEOM_LINUX_LVM. 1796 179720080211: 1798 The default NFS mount mode has changed from UDP to TCP for 1799 increased reliability. If you rely on (insecurely) NFS 1800 mounting across a firewall you may need to update your 1801 firewall rules. 1802 180320080208: 1804 Belatedly note the addition of m_collapse for compacting 1805 mbuf chains. 1806 180720080126: 1808 The fts(3) structures have been changed to use adequate 1809 integer types for their members and so to be able to cope 1810 with huge file trees. The old fts(3) ABI is preserved 1811 through symbol versioning in libc, so third-party binaries 1812 using fts(3) should still work, although they will not take 1813 advantage of the extended types. At the same time, some 1814 third-party software might fail to build after this change 1815 due to unportable assumptions made in its source code about 1816 fts(3) structure members. Such software should be fixed 1817 by its vendor or, in the worst case, in the ports tree. 1818 FreeBSD_version 800015 marks this change for the unlikely 1819 case that a portable fix is impossible. 1820 182120080123: 1822 To upgrade to -current after this date, you must be running 1823 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1824 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1825 182620071128: 1827 The ADAPTIVE_GIANT kernel option has been retired because its 1828 functionality is the default now. 1829 183020071118: 1831 The AT keyboard emulation of sunkbd(4) has been turned on 1832 by default. In order to make the special symbols of the Sun 1833 keyboards driven by sunkbd(4) work under X these now have 1834 to be configured the same way as Sun USB keyboards driven 1835 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1836 1837 Option "XkbLayout" "us" 1838 Option "XkbRules" "xorg" 1839 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1840 184120071024: 1842 It has been decided that it is desirable to provide ABI 1843 backwards compatibility to the FreeBSD 4/5/6 versions of the 1844 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1845 broken with the introduction of PCI domain support (see the 1846 20070930 entry). Unfortunately, this required the ABI of 1847 PCIOCGETCONF to be broken again in order to be able to 1848 provide backwards compatibility to the old version of that 1849 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1850 again. As for prominent ports this affects neither pciutils 1851 nor xorg-server this time, the hal port needs to be rebuilt 1852 however. 1853 185420071020: 1855 The misnamed kthread_create() and friends have been renamed 1856 to kproc_create() etc. Many of the callers already 1857 used kproc_start().. 1858 I will return kthread_create() and friends in a while 1859 with implementations that actually create threads, not procs. 1860 Renaming corresponds with version 800002. 1861 186220071010: 1863 RELENG_7 branched. 1864 1865COMMON ITEMS: 1866 1867 General Notes 1868 ------------- 1869 Avoid using make -j when upgrading. While generally safe, there are 1870 sometimes problems using -j to upgrade. If your upgrade fails with 1871 -j, please try again without -j. From time to time in the past there 1872 have been problems using -j with buildworld and/or installworld. This 1873 is especially true when upgrading between "distant" versions (eg one 1874 that cross a major release boundary or several minor releases, or when 1875 several months have passed on the -current branch). 1876 1877 Sometimes, obscure build problems are the result of environment 1878 poisoning. This can happen because the make utility reads its 1879 environment when searching for values for global variables. To run 1880 your build attempts in an "environmental clean room", prefix all make 1881 commands with 'env -i '. See the env(1) manual page for more details. 1882 1883 When upgrading from one major version to another it is generally best 1884 to upgrade to the latest code in the currently installed branch first, 1885 then do an upgrade to the new branch. This is the best-tested upgrade 1886 path, and has the highest probability of being successful. Please try 1887 this approach before reporting problems with a major version upgrade. 1888 1889 When upgrading a live system, having a root shell around before 1890 installing anything can help undo problems. Not having a root shell 1891 around can lead to problems if pam has changed too much from your 1892 starting point to allow continued authentication after the upgrade. 1893 1894 ZFS notes 1895 --------- 1896 When upgrading the boot ZFS pool to a new version, always follow 1897 these two steps: 1898 1899 1.) recompile and reinstall the ZFS boot loader and boot block 1900 (this is part of "make buildworld" and "make installworld") 1901 1902 2.) update the ZFS boot block on your boot drive 1903 1904 The following example updates the ZFS boot block on the first 1905 partition (freebsd-boot) of a GPT partitioned drive ad0: 1906 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1907 1908 Non-boot pools do not need these updates. 1909 1910 To build a kernel 1911 ----------------- 1912 If you are updating from a prior version of FreeBSD (even one just 1913 a few days old), you should follow this procedure. It is the most 1914 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1915 1916 make kernel-toolchain 1917 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1918 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1919 1920 To test a kernel once 1921 --------------------- 1922 If you just want to boot a kernel once (because you are not sure 1923 if it works, or if you want to boot a known bad kernel to provide 1924 debugging information) run 1925 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1926 nextboot -k testkernel 1927 1928 To just build a kernel when you know that it won't mess you up 1929 -------------------------------------------------------------- 1930 This assumes you are already running a CURRENT system. Replace 1931 ${arch} with the architecture of your machine (e.g. "i386", 1932 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1933 1934 cd src/sys/${arch}/conf 1935 config KERNEL_NAME_HERE 1936 cd ../compile/KERNEL_NAME_HERE 1937 make depend 1938 make 1939 make install 1940 1941 If this fails, go to the "To build a kernel" section. 1942 1943 To rebuild everything and install it on the current system. 1944 ----------------------------------------------------------- 1945 # Note: sometimes if you are running current you gotta do more than 1946 # is listed here if you are upgrading from a really old current. 1947 1948 <make sure you have good level 0 dumps> 1949 make buildworld 1950 make kernel KERNCONF=YOUR_KERNEL_HERE 1951 [1] 1952 <reboot in single user> [3] 1953 mergemaster -p [5] 1954 make installworld 1955 mergemaster -i [4] 1956 make delete-old [6] 1957 <reboot> 1958 1959 To cross-install current onto a separate partition 1960 -------------------------------------------------- 1961 # In this approach we use a separate partition to hold 1962 # current's root, 'usr', and 'var' directories. A partition 1963 # holding "/", "/usr" and "/var" should be about 2GB in 1964 # size. 1965 1966 <make sure you have good level 0 dumps> 1967 <boot into -stable> 1968 make buildworld 1969 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1970 <maybe newfs current's root partition> 1971 <mount current's root partition on directory ${CURRENT_ROOT}> 1972 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC 1973 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1974 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1975 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1976 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1977 <reboot into current> 1978 <do a "native" rebuild/install as described in the previous section> 1979 <maybe install compatibility libraries from ports/misc/compat*> 1980 <reboot> 1981 1982 1983 To upgrade in-place from stable to current 1984 ---------------------------------------------- 1985 <make sure you have good level 0 dumps> 1986 make buildworld [9] 1987 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1988 [1] 1989 <reboot in single user> [3] 1990 mergemaster -p [5] 1991 make installworld 1992 mergemaster -i [4] 1993 make delete-old [6] 1994 <reboot> 1995 1996 Make sure that you've read the UPDATING file to understand the 1997 tweaks to various things you need. At this point in the life 1998 cycle of current, things change often and you are on your own 1999 to cope. The defaults can also change, so please read ALL of 2000 the UPDATING entries. 2001 2002 Also, if you are tracking -current, you must be subscribed to 2003 freebsd-current@freebsd.org. Make sure that before you update 2004 your sources that you have read and understood all the recent 2005 messages there. If in doubt, please track -stable which has 2006 much fewer pitfalls. 2007 2008 [1] If you have third party modules, such as vmware, you 2009 should disable them at this point so they don't crash your 2010 system on reboot. 2011 2012 [3] From the bootblocks, boot -s, and then do 2013 fsck -p 2014 mount -u / 2015 mount -a 2016 cd src 2017 adjkerntz -i # if CMOS is wall time 2018 Also, when doing a major release upgrade, it is required that 2019 you boot into single user mode to do the installworld. 2020 2021 [4] Note: This step is non-optional. Failure to do this step 2022 can result in a significant reduction in the functionality of the 2023 system. Attempting to do it by hand is not recommended and those 2024 that pursue this avenue should read this file carefully, as well 2025 as the archives of freebsd-current and freebsd-hackers mailing lists 2026 for potential gotchas. The -U option is also useful to consider. 2027 See mergemaster(8) for more information. 2028 2029 [5] Usually this step is a noop. However, from time to time 2030 you may need to do this if you get unknown user in the following 2031 step. It never hurts to do it all the time. You may need to 2032 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2033 install) after the buildworld before this step if you last updated 2034 from current before 20130425 or from -stable before 20130430. 2035 2036 [6] This only deletes old files and directories. Old libraries 2037 can be deleted by "make delete-old-libs", but you have to make 2038 sure that no program is using those libraries anymore. 2039 2040 [8] In order to have a kernel that can run the 4.x binaries needed to 2041 do an installworld, you must include the COMPAT_FREEBSD4 option in 2042 your kernel. Failure to do so may leave you with a system that is 2043 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2044 required to run the 5.x binaries on more recent kernels. And so on 2045 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2046 2047 Make sure that you merge any new devices from GENERIC since the 2048 last time you updated your kernel config file. 2049 2050 [9] When checking out sources, you must include the -P flag to have 2051 cvs prune empty directories. 2052 2053 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2054 "?=" instead of the "=" assignment operator, so that buildworld can 2055 override the CPUTYPE if it needs to. 2056 2057 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2058 not on the command line, or in /etc/make.conf. buildworld will 2059 warn if it is improperly defined. 2060FORMAT: 2061 2062This file contains a list, in reverse chronological order, of major 2063breakages in tracking -current. It is not guaranteed to be a complete 2064list of such breakages, and only contains entries since October 10, 2007. 2065If you need to see UPDATING entries from before that date, you will need 2066to fetch an UPDATING file from an older FreeBSD release. 2067 2068Copyright information: 2069 2070Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2071 2072Redistribution, publication, translation and use, with or without 2073modification, in full or in part, in any form or format of this 2074document are permitted without further permission from the author. 2075 2076THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2077IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2078WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2079DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2080INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2081(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2082SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2083HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2084STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2085IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2086POSSIBILITY OF SUCH DAMAGE. 2087 2088Contact Warner Losh if you have any questions about your use of 2089this document. 2090 2091$FreeBSD: head/UPDATING 261988 2014-02-16 19:33:34Z brueffer $ 2092