UPDATING revision 268708
1Updating Information for FreeBSD current users 2 3This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>. 4See end of file for further details. For commonly done items, please see the 5COMMON ITEMS: section later in the file. These instructions assume that you 6basically know what you are doing. If not, then please consult the FreeBSD 7handbook: 8 9 http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html 10 11Items affecting the ports and packages system can be found in 12/usr/ports/UPDATING. Please read that file before running portupgrade. 13 14NOTE: FreeBSD has switched from gcc to clang. If you have trouble bootstrapping 15from older versions of FreeBSD, try WITHOUT_CLANG to bootstrap to the tip of 16stable/10, and then rebuild without this option. The bootstrap process from 17older version of current is a bit fragile. 18 1920140715: 20 Several ABI breaking changes were merged to CTL and new iSCSI code. 21 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 22 iscsictl need to be rebuilt to work with a new kernel. 23 2420140708: 25 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 26 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 27 which differs from the behaviour controlled by this knob.) 28 2920140608: 30 On i386 and amd64 systems, the onifconsole flag is now set by default 31 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 32 as a login TTY if it is set in the bootloader as an active kernel 33 console. No changes in behavior should result otherwise. To revert to 34 the previous behavior, set ttyu0 to "off" in /etc/ttys. 35 3620140512: 37 Clang and llvm have been upgraded to 3.4.1 release. 38 3920140321: 40 Clang and llvm have been upgraded to 3.4 release. 41 4220140306: 43 If a Makefile in a tests/ directory was auto-generating a Kyuafile 44 instead of providing an explicit one, this would prevent such 45 Makefile from providing its own Kyuafile in the future during 46 NO_CLEAN builds. This has been fixed in the Makefiles but manual 47 intervention is needed to clean an objdir if you use NO_CLEAN: 48 # find /usr/obj -name Kyuafile | xargs rm -f 49 5020140303: 51 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 52 capability mode support. Please note that enabling the feature in 53 kernel is still highly recommended. 54 5520140227: 56 OpenSSH is now built with sandbox support, and will use sandbox as 57 the default privilege separation method. This requires Capsicum 58 capability mode support in kernel. 59 6020140216: 61 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 62 been deprecated and will not be part of FreeBSD 11.0 and later 63 releases. If you use this driver, please consider switching to 64 the nfe(4) driver instead. 65 6620140120: 67 10.0-RELEASE. 68 6920131216: 70 The behavior of gss_pseudo_random() for the krb5 mechanism 71 has changed, for applications requesting a longer random string 72 than produced by the underlying enctype's pseudo-random() function. 73 In particular, the random string produced from a session key of 74 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 75 be different at the 17th octet and later, after this change. 76 The counter used in the PRF+ construction is now encoded as a 77 big-endian integer in accordance with RFC 4402. 78 __FreeBSD_version is bumped to 1000701. 79 8020131108: 81 The WITHOUT_ATF build knob has been removed and its functionality 82 has been subsumed into the more generic WITHOUT_TESTS. If you were 83 using the former to disable the build of the ATF libraries, you 84 should change your settings to use the latter. 85 8620131031: 87 The default version of mtree is nmtree which is obtained from 88 NetBSD. The output is generally the same, but may vary 89 slightly. If you found you need identical output adding 90 "-F freebsd9" to the command line should do the trick. For the 91 time being, the old mtree is available as fmtree. 92 9320131014: 94 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 95 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 96 1.1.4_8 and verify bsdyml not linked in, before running "make 97 delete-old-libs": 98 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 99 or 100 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 101 10220131010: 103 The rc.d/jail script has been updated to support jail(8) 104 configuration file. The "jail_<jname>_*" rc.conf(5) variables 105 for per-jail configuration are automatically converted to 106 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 107 This is transparently backward compatible. See below about some 108 incompatibilities and rc.conf(5) manual page for more details. 109 110 These variables are now deprecated in favor of jail(8) configuration 111 file. One can use "rc.d/jail config <jname>" command to generate 112 a jail(8) configuration file in /var/run/jail.<jname>.conf without 113 running the jail(8) utility. The default pathname of the 114 configuration file is /etc/jail.conf and can be specified by 115 using $jail_conf or $jail_<jname>_conf variables. 116 117 Please note that jail_devfs_ruleset accepts an integer at 118 this moment. Please consider to rewrite the ruleset name 119 with an integer. 120 12120130930: 122 BIND has been removed from the base system. If all you need 123 is a local resolver, simply enable and start the local_unbound 124 service instead. Otherwise, several versions of BIND are 125 available in the ports tree. The dns/bind99 port is one example. 126 127 With this change, nslookup(1) and dig(1) are no longer in the base 128 system. Users should instead use host(1) and drill(1) which are 129 in the base system. Alternatively, nslookup and dig can 130 be obtained by installing the dns/bind-tools port. 131 13220130916: 133 With the addition of unbound(8), a new unbound user is now 134 required during installworld. "mergemaster -p" can be used to 135 add the user prior to installworld, as documented in the handbook. 136 13720130911: 138 OpenSSH is now built with DNSSEC support, and will by default 139 silently trust signed SSHFP records. This can be controlled with 140 the VerifyHostKeyDNS client configuration setting. DNSSEC support 141 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 142 14320130906: 144 The GNU Compiler Collection and C++ standard library (libstdc++) 145 are no longer built by default on platforms where clang is the system 146 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 147 options in src.conf. 148 14920130905: 150 The PROCDESC kernel option is now part of the GENERIC kernel 151 configuration and is required for the rwhod(8) to work. 152 If you are using custom kernel configuration, you should include 153 'options PROCDESC'. 154 15520130905: 156 The API and ABI related to the Capsicum framework was modified 157 in backward incompatible way. The userland libraries and programs 158 have to be recompiled to work with the new kernel. This includes the 159 following libraries and programs, but the whole buildworld is 160 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 161 kdump, procstat, rwho, rwhod, uniq. 162 16320130903: 164 AES-NI intrinsic support has been added to gcc. The AES-NI module 165 has been updated to use this support. A new gcc is required to build 166 the aesni module on both i386 and amd64. 167 16820130821: 169 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 170 Thus "device padlock_rng" and "device rdrand_rng" should be 171 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 172 17320130813: 174 WITH_ICONV has been split into two feature sets. WITH_ICONV now 175 enables just the iconv* functionality and is now on by default. 176 WITH_LIBICONV_COMPAT enables the libiconv api and link time 177 compatability. Set WITHOUT_ICONV to build the old way. 178 If you have been using WITH_ICONV before, you will very likely 179 need to turn on WITH_LIBICONV_COMPAT. 180 18120130806: 182 INVARIANTS option now enables DEBUG for code with OpenSolaris and 183 Illumos origin, including ZFS. If you have INVARIANTS in your 184 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 185 explicitly. 186 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 187 locks if WITNESS option was set. Because that generated a lot of 188 witness(9) reports and all of them were believed to be false 189 positives, this is no longer done. New option OPENSOLARIS_WITNESS 190 can be used to achieve the previous behavior. 191 19220130806: 193 Timer values in IPv6 data structures now use time_uptime instead 194 of time_second. Although this is not a user-visible functional 195 change, userland utilities which directly use them---ndp(8), 196 rtadvd(8), and rtsold(8) in the base system---need to be updated 197 to r253970 or later. 198 19920130802: 200 find -delete can now delete the pathnames given as arguments, 201 instead of only files found below them or if the pathname did 202 not contain any slashes. Formerly, the following error message 203 would result: 204 205 find: -delete: <path>: relative path potentially not safe 206 207 Deleting the pathnames given as arguments can be prevented 208 without error messages using -mindepth 1 or by changing 209 directory and passing "." as argument to find. This works in the 210 old as well as the new version of find. 211 21220130726: 213 Behavior of devfs rules path matching has been changed. 214 Pattern is now always matched against fully qualified devfs 215 path and slash characters must be explicitly matched by 216 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 217 subdirectories must be reviewed. 218 21920130716: 220 The default ARM ABI has changed to the ARM EABI. The old ABI is 221 incompatible with the ARM EABI and all programs and modules will 222 need to be rebuilt to work with a new kernel. 223 224 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 225 226 NOTE: Support for the old ABI will be removed in the future and 227 users are advised to upgrade. 228 22920130709: 230 pkg_install has been disconnected from the build if you really need it 231 you should add WITH_PKGTOOLS in your src.conf(5). 232 23320130709: 234 Most of network statistics structures were changed to be able 235 keep 64-bits counters. Thus all tools, that work with networking 236 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 237 23820130629: 239 Fix targets that run multiple make's to use && rather than ; 240 so that subsequent steps depend on success of previous. 241 242 NOTE: if building 'universe' with -j* on stable/8 or stable/9 243 it would be better to start the build using bmake, to avoid 244 overloading the machine. 245 24620130618: 247 Fix a bug that allowed a tracing process (e.g. gdb) to write 248 to a memory-mapped file in the traced process's address space 249 even if neither the traced process nor the tracing process had 250 write access to that file. 251 25220130615: 253 CVS has been removed from the base system. An exact copy 254 of the code is available from the devel/cvs port. 255 25620130613: 257 Some people report the following error after the switch to bmake: 258 259 make: illegal option -- J 260 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 261 ... 262 *** [buildworld] Error code 2 263 264 this likely due to an old instance of make in 265 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 266 which src/Makefile will use that blindly, if it exists, so if 267 you see the above error: 268 269 rm -rf `make -V MAKEPATH` 270 271 should resolve it. 272 27320130516: 274 Use bmake by default. 275 Whereas before one could choose to build with bmake via 276 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 277 make. The goal is to remove these knobs for 10-RELEASE. 278 279 It is worth noting that bmake (like gmake) treats the command 280 line as the unit of failure, rather than statements within the 281 command line. Thus '(cd some/where && dosomething)' is safer 282 than 'cd some/where; dosomething'. The '()' allows consistent 283 behavior in parallel build. 284 28520130429: 286 Fix a bug that allows NFS clients to issue READDIR on files. 287 28820130426: 289 The WITHOUT_IDEA option has been removed because 290 the IDEA patent expired. 291 29220130426: 293 The sysctl which controls TRIM support under ZFS has been renamed 294 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 295 enabled by default. 296 29720130425: 298 The mergemaster command now uses the default MAKEOBJDIRPREFIX 299 rather than creating it's own in the temporary directory in 300 order allow access to bootstrapped versions of tools such as 301 install and mtree. When upgrading from version of FreeBSD where 302 the install command does not support -l, you will need to 303 install a new mergemaster command if mergemaster -p is required. 304 This can be accomplished with the command (cd src/usr.sbin/mergemaster 305 && make install). 306 30720130404: 308 Legacy ATA stack, disabled and replaced by new CAM-based one since 309 FreeBSD 9.0, completely removed from the sources. Kernel modules 310 atadisk and atapi*, user-level tools atacontrol and burncd are 311 removed. Kernel option `options ATA_CAM` is now permanently enabled 312 and removed. 313 31420130319: 315 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 316 and socketpair(2). Software, in particular Kerberos, may 317 automatically detect and use these during building. The resulting 318 binaries will not work on older kernels. 319 32020130308: 321 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 322 information, see the respective 20130304 entry). 323 32420130304: 325 Recent commits to callout(9) changed the size of struct callout, 326 so the KBI is probably heavily disturbed. Also, some functions 327 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 328 by macros. Every kernel module using it won't load, so rebuild 329 is requested. 330 331 The ctl device has been re-enabled in GENERIC for i386 and amd64, 332 but does not initialize by default (because of the new CTL_DISABLE 333 option) to save memory. To re-enable it, remove the CTL_DISABLE 334 option from the kernel config file or set kern.cam.ctl.disable=0 335 in /boot/loader.conf. 336 33720130301: 338 The ctl device has been disabled in GENERIC for i386 and amd64. 339 This was done due to the extra memory being allocated at system 340 initialisation time by the ctl driver which was only used if 341 a CAM target device was created. This makes a FreeBSD system 342 unusable on 128MB or less of RAM. 343 34420130208: 345 A new compression method (lz4) has been merged to -HEAD. Please 346 refer to zpool-features(7) for more information. 347 348 Please refer to the "ZFS notes" section of this file for information 349 on upgrading boot ZFS pools. 350 35120130129: 352 A BSD-licensed patch(1) variant has been added and is installed 353 as bsdpatch, being the GNU version the default patch. 354 To inverse the logic and use the BSD-licensed one as default, 355 while having the GNU version installed as gnupatch, rebuild 356 and install world with the WITH_BSD_PATCH knob set. 357 35820130121: 359 Due to the use of the new -l option to install(1) during build 360 and install, you must take care not to directly set the INSTALL 361 make variable in your /etc/make.conf, /etc/src.conf, or on the 362 command line. If you wish to use the -C flag for all installs 363 you may be able to add INSTALL+=-C to /etc/make.conf or 364 /etc/src.conf. 365 36620130118: 367 The install(1) option -M has changed meaning and now takes an 368 argument that is a file or path to append logs to. In the 369 unlikely event that -M was the last option on the command line 370 and the command line contained at least two files and a target 371 directory the first file will have logs appended to it. The -M 372 option served little practical purpose in the last decade so its 373 use is expected to be extremely rare. 374 37520121223: 376 After switching to Clang as the default compiler some users of ZFS 377 on i386 systems started to experience stack overflow kernel panics. 378 Please consider using 'options KSTACK_PAGES=4' in such configurations. 379 38020121222: 381 GEOM_LABEL now mangles label names read from file system metadata. 382 Mangling affect labels containing spaces, non-printable characters, 383 '%' or '"'. Device names in /etc/fstab and other places may need to 384 be updated. 385 38620121217: 387 By default, only the 10 most recent kernel dumps will be saved. To 388 restore the previous behaviour (no limit on the number of kernel dumps 389 stored in the dump directory) add the following line to /etc/rc.conf: 390 391 savecore_flags="" 392 39320121201: 394 With the addition of auditdistd(8), a new auditdistd user is now 395 required during installworld. "mergemaster -p" can be used to 396 add the user prior to installworld, as documented in the handbook. 397 39820121117: 399 The sin6_scope_id member variable in struct sockaddr_in6 is now 400 filled by the kernel before passing the structure to the userland via 401 sysctl or routing socket. This means the KAME-specific embedded scope 402 id in sin6_addr.s6_addr[2] is always cleared in userland application. 403 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 404 __FreeBSD_version is bumped to 1000025. 405 40620121105: 407 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 408 This means that the world and kernel will be compiled with clang 409 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 410 and /usr/bin/cpp. To disable this behavior and revert to building 411 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 412 of current may need to bootstrap WITHOUT_CLANG first if the clang 413 build fails (its compatibility window doesn't extend to the 9 stable 414 branch point). 415 41620121102: 417 The IPFIREWALL_FORWARD kernel option has been removed. Its 418 functionality now turned on by default. 419 42020121023: 421 The ZERO_COPY_SOCKET kernel option has been removed and 422 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 423 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 424 mechanism which is not safe and may result in kernel crashes. 425 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 426 driver supports disposeable external page sized mbuf storage. 427 Proper replacements for both zero-copy mechanisms are under 428 consideration and will eventually lead to complete removal 429 of the two kernel options. 430 43120121023: 432 The IPv4 network stack has been converted to network byte 433 order. The following modules need to be recompiled together 434 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 435 pf(4), ipfw(4), ng_ipfw(4), stf(4). 436 43720121022: 438 Support for non-MPSAFE filesystems was removed from VFS. The 439 VFS_VERSION was bumped, all filesystem modules shall be 440 recompiled. 441 44220121018: 443 All the non-MPSAFE filesystems have been disconnected from 444 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 445 portalfs, smbfs, xfs. 446 44720121016: 448 The interface cloning API and ABI has changed. The following 449 modules need to be recompiled together with kernel: 450 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 451 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 452 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 453 45420121015: 455 The sdhci driver was split in two parts: sdhci (generic SD Host 456 Controller logic) and sdhci_pci (actual hardware driver). 457 No kernel config modifications are required, but if you 458 load sdhc as a module you must switch to sdhci_pci instead. 459 46020121014: 461 Import the FUSE kernel and userland support into base system. 462 46320121013: 464 The GNU sort(1) program has been removed since the BSD-licensed 465 sort(1) has been the default for quite some time and no serious 466 problems have been reported. The corresponding WITH_GNU_SORT 467 knob has also gone. 468 46920121006: 470 The pfil(9) API/ABI for AF_INET family has been changed. Packet 471 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 472 with new kernel. 473 47420121001: 475 The net80211(4) ABI has been changed to allow for improved driver 476 PS-POLL and power-save support. All wireless drivers need to be 477 recompiled to work with the new kernel. 478 47920120913: 480 The random(4) support for the VIA hardware random number 481 generator (`PADLOCK') is no longer enabled unconditionally. 482 Add the padlock_rng device in the custom kernel config if 483 needed. The GENERIC kernels on i386 and amd64 do include the 484 device, so the change only affects the custom kernel 485 configurations. 486 48720120908: 488 The pf(4) packet filter ABI has been changed. pfctl(8) and 489 snmp_pf module need to be recompiled to work with new kernel. 490 49120120828: 492 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 493 to -HEAD. Pools that have empty_bpobj in active state can not be 494 imported read-write with ZFS implementations that do not support 495 this feature. For more information read the zpool-features(5) 496 manual page. 497 49820120727: 499 The sparc64 ZFS loader has been changed to no longer try to auto- 500 detect ZFS providers based on diskN aliases but now requires these 501 to be explicitly listed in the OFW boot-device environment variable. 502 50320120712: 504 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 505 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 506 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 507 50820120712: 509 The following sysctls and tunables have been renamed for consistency 510 with other variables: 511 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 512 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 513 51420120628: 515 The sort utility has been replaced with BSD sort. For now, GNU sort 516 is also available as "gnusort" or the default can be set back to 517 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 518 installed as "bsdsort". 519 52020120611: 521 A new version of ZFS (pool version 5000) has been merged to -HEAD. 522 Starting with this version the old system of ZFS pool versioning 523 is superseded by "feature flags". This concept enables forward 524 compatibility against certain future changes in functionality of ZFS 525 pools. The first read-only compatible "feature flag" for ZFS pools 526 is named "com.delphix:async_destroy". For more information 527 read the new zpool-features(5) manual page. 528 Please refer to the "ZFS notes" section of this file for information 529 on upgrading boot ZFS pools. 530 53120120417: 532 The malloc(3) implementation embedded in libc now uses sources imported 533 as contrib/jemalloc. The most disruptive API change is to 534 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 535 delete it prior to installworld, and optionally re-create it using the 536 new format after rebooting. See malloc.conf(5) for details 537 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 538 NAMESPACE section). 539 54020120328: 541 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 542 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 543 now spelled mips. This is to aid compatibility with third-party 544 software that expects this naming scheme in uname(3). Little-endian 545 settings are unchanged. If you are updating a big-endian mips64 machine 546 from before this change, you may need to set MACHINE_ARCH=mips64 in 547 your environment before the new build system will recognize your machine. 548 54920120306: 550 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 551 platforms. 552 55320120229: 554 Now unix domain sockets behave "as expected" on nullfs(5). Previously 555 nullfs(5) did not pass through all behaviours to the underlying layer, 556 as a result if we bound to a socket on the lower layer we could connect 557 only to the lower path; if we bound to the upper layer we could connect 558 only to the upper path. The new behavior is one can connect to both the 559 lower and the upper paths regardless what layer path one binds to. 560 56120120211: 562 The getifaddrs upgrade path broken with 20111215 has been restored. 563 If you have upgraded in between 20111215 and 20120209 you need to 564 recompile libc again with your kernel. You still need to recompile 565 world to be able to configure CARP but this restriction already 566 comes from 20111215. 567 56820120114: 569 The set_rcvar() function has been removed from /etc/rc.subr. All 570 base and ports rc.d scripts have been updated, so if you have a 571 port installed with a script in /usr/local/etc/rc.d you can either 572 hand-edit the rcvar= line, or reinstall the port. 573 574 An easy way to handle the mass-update of /etc/rc.d: 575 rm /etc/rc.d/* && mergemaster -i 576 57720120109: 578 panic(9) now stops other CPUs in the SMP systems, disables interrupts 579 on the current CPU and prevents other threads from running. 580 This behavior can be reverted using the kern.stop_scheduler_on_panic 581 tunable/sysctl. 582 The new behavior can be incompatible with kern.sync_on_panic. 583 58420111215: 585 The carp(4) facility has been changed significantly. Configuration 586 of the CARP protocol via ifconfig(8) has changed, as well as format 587 of CARP events submitted to devd(8) has changed. See manual pages 588 for more information. The arpbalance feature of carp(4) is currently 589 not supported anymore. 590 591 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 592 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 593 need to be recompiled. 594 59520111122: 596 The acpi_wmi(4) status device /dev/wmistat has been renamed to 597 /dev/wmistat0. 598 59920111108: 600 The option VFS_ALLOW_NONMPSAFE option has been added in order to 601 explicitely support non-MPSAFE filesystems. 602 It is on by default for all supported platform at this present 603 time. 604 60520111101: 606 The broken amd(4) driver has been replaced with esp(4) in the amd64, 607 i386 and pc98 GENERIC kernel configuration files. 608 60920110930: 610 sysinstall has been removed 611 61220110923: 613 The stable/9 branch created in subversion. This corresponds to the 614 RELENG_9 branch in CVS. 615 61620110913: 617 This commit modifies vfs_register() so that it uses a hash 618 calculation to set vfc_typenum, which is enabled by default. 619 The first time a system is booted after this change, the 620 vfc_typenum values will change for all file systems. The 621 main effect of this is a change to the NFS server file handles 622 for file systems that use vfc_typenum in their fsid, such as ZFS. 623 It will, however, prevent vfc_typenum from changing when file 624 systems are loaded in a different order for subsequent reboots. 625 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 626 until you are ready to remount all NFS clients after a reboot. 627 62820110828: 629 Bump the shared library version numbers for libraries that 630 do not use symbol versioning, have changed the ABI compared 631 to stable/8 and which shared library version was not bumped. 632 Done as part of 9.0-RELEASE cycle. 633 63420110815: 635 During the merge of Capsicum features, the fget(9) KPI was modified. 636 This may require the rebuilding of out-of-tree device drivers -- 637 issues have been reported specifically with the nVidia device driver. 638 __FreeBSD_version is bumped to 900041. 639 640 Also, there is a period between 20110811 and 20110814 where the 641 special devices /dev/{stdin,stdout,stderr} did not work correctly. 642 Building world from a kernel during that window may not work. 643 64420110628: 645 The packet filter (pf) code has been updated to OpenBSD 4.5. 646 You need to update userland tools to be in sync with kernel. 647 This update breaks backward compatibility with earlier pfsync(4) 648 versions. Care must be taken when updating redundant firewall setups. 649 65020110608: 651 The following sysctls and tunables are retired on x86 platforms: 652 machdep.hlt_cpus 653 machdep.hlt_logical_cpus 654 The following sysctl is retired: 655 machdep.hyperthreading_allowed 656 The sysctls were supposed to provide a way to dynamically offline and 657 online selected CPUs on x86 platforms, but the implementation has not 658 been reliable especially with SCHED_ULE scheduler. 659 machdep.hyperthreading_allowed tunable is still available to ignore 660 hyperthreading CPUs at OS level. 661 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 662 where X is an APIC ID of a CPU. Be advised, though, that disabling 663 CPUs in non-uniform fashion will result in non-uniform topology and 664 may lead to sub-optimal system performance with SCHED_ULE, which is 665 a default scheduler. 666 66720110607: 668 cpumask_t type is retired and cpuset_t is used in order to describe 669 a mask of CPUs. 670 67120110531: 672 Changes to ifconfig(8) for dynamic address family detection mandate 673 that you are running a kernel of 20110525 or later. Make sure to 674 follow the update procedure to boot a new kernel before installing 675 world. 676 67720110513: 678 Support for sun4v architecture is officially dropped 679 68020110503: 681 Several KPI breaking changes have been committed to the mii(4) layer, 682 the PHY drivers and consequently some Ethernet drivers using mii(4). 683 This means that miibus.ko and the modules of the affected Ethernet 684 drivers need to be recompiled. 685 686 Note to kernel developers: Given that the OUI bit reversion problem 687 was fixed as part of these changes all mii(4) commits related to OUIs, 688 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 689 handling, no longer can be merged verbatim to stable/8 and previous 690 branches. 691 69220110430: 693 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 694 into their kernel configurations along with 'device pci'. 695 69620110427: 697 The default NFS client is now the new NFS client, so fstype "newnfs" 698 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 699 Although mounts via fstype "nfs" will usually work without userland 700 changes, it is recommended that the mount(8) and mount_nfs(8) 701 commands be rebuilt from sources and that a link to mount_nfs called 702 mount_oldnfs be created. The new client is compiled into the 703 kernel with "options NFSCL" and this is needed for diskless root 704 file systems. The GENERIC kernel configs have been changed to use 705 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 706 To use the regular/old client, you can "mount -t oldnfs ...". For 707 a diskless root file system, you must also include a line like: 708 709 vfs.root.mountfrom="oldnfs:" 710 711 in the boot/loader.conf on the root fs on the NFS server to make 712 a diskless root fs use the old client. 713 71420110424: 715 The GENERIC kernels for all architectures now default to the new 716 CAM-based ATA stack. It means that all legacy ATA drivers were 717 removed and replaced by respective CAM drivers. If you are using 718 ATA device names in /etc/fstab or other places, make sure to update 719 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 720 where 'Y's are the sequential numbers starting from zero for each type 721 in order of detection, unless configured otherwise with tunables, 722 see cam(4)). There will be symbolic links created in /dev/ to map 723 old adX devices to the respective adaY. They should provide basic 724 compatibility for file systems mounting in most cases, but they do 725 not support old user-level APIs and do not have respective providers 726 in GEOM. Consider using updated management tools with new device names. 727 728 It is possible to load devices ahci, ata, siis and mvs as modules, 729 but option ATA_CAM should remain in kernel configuration to make ata 730 module work as CAM driver supporting legacy ATA controllers. Device ata 731 still can be used in modular fashion (atacore + ...). Modules atadisk 732 and atapi* are not used and won't affect operation in ATA_CAM mode. 733 Note that to use CAM-based ATA kernel should include CAM devices 734 scbus, pass, da (or explicitly ada), cd and optionally others. All of 735 them are parts of the cam module. 736 737 ataraid(4) functionality is now supported by the RAID GEOM class. 738 To use it you can load geom_raid kernel module and use graid(8) tool 739 for management. Instead of /dev/arX device names, use /dev/raid/rX. 740 741 No kernel config options or code have been removed, so if a problem 742 arises, please report it and optionally revert to the old ATA stack. 743 In order to do it you can remove from the kernel config: 744 options ATA_CAM 745 device ahci 746 device mvs 747 device siis 748 , and instead add back: 749 device atadisk # ATA disk drives 750 device ataraid # ATA RAID drives 751 device atapicd # ATAPI CDROM drives 752 device atapifd # ATAPI floppy drives 753 device atapist # ATAPI tape drives 754 75520110423: 756 The default NFS server has been changed to the new server, which 757 was referred to as the experimental server. If you need to switch 758 back to the old NFS server, you must now put the "-o" option on 759 both the mountd and nfsd commands. This can be done using the 760 mountd_flags and nfs_server_flags rc.conf variables until an 761 update to the rc scripts is committed, which is coming soon. 762 76320110418: 764 The GNU Objective-C runtime library (libobjc), and other Objective-C 765 related components have been removed from the base system. If you 766 require an Objective-C library, please use one of the available ports. 767 76820110331: 769 ath(4) has been split into bus- and device- modules. if_ath contains 770 the HAL, the TX rate control and the network device code. if_ath_pci 771 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 772 contains the AHB glue. Users need to load both if_ath_pci and if_ath 773 in order to use ath on everything else. 774 775 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 776 need to load if_ath and if_ath_pci for ath(4) operation. 777 77820110314: 779 As part of the replacement of sysinstall, the process of building 780 release media has changed significantly. For details, please re-read 781 release(7), which has been updated to reflect the new build process. 782 78320110218: 784 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 785 is the last available version under GPLv2. It brings a number of new 786 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 787 4.1 and SSE 4.2), better support for powerpc64, a number of new 788 directives, and lots of other small improvements. See the ChangeLog 789 file in contrib/binutils for the full details. 790 79120110218: 792 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 793 compliant, and will now use half of hash for authentication. 794 This will break interoperability with all stacks (including all 795 actual FreeBSD versions) who implement 796 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 797 authentication). 798 The only workaround with such peers is to use another HMAC 799 algorithm for IPsec ("phase 2") authentication. 800 80120110207: 802 Remove the uio_yield prototype and symbol. This function has 803 been misnamed since it was introduced and should not be 804 globally exposed with this name. The equivalent functionality 805 is now available using kern_yield(curthread->td_user_pri). 806 The function remains undocumented. 807 80820110112: 809 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 810 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 811 for scalar sysctls is defined but disabled. Code that needs 812 UQUAD to pass the type checking that must compile on older 813 systems where the define is not present can check against 814 __FreeBSD_version >= 900030. 815 816 The system dialog(1) has been replaced with a new version previously 817 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 818 with the previous version, but the libdialog associated with it has 819 a largely incompatible API. As such, the original version of libdialog 820 will be kept temporarily as libodialog, until its base system consumers 821 are replaced or updated. Bump __FreeBSD_version to 900030. 822 82320110103: 824 If you are trying to run make universe on a -stable system, and you get 825 the following warning: 826 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 827 unknown. config(8) likely too old." 828 or something similar to it, then you must upgrade your -stable system 829 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 830 stable/8) or build the config from the latest stable/8 branch and 831 install it on your system. 832 833 Prior to this date, building a current universe on 8-stable system from 834 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 835 error in the first kernel build phase. A new config on those old 836 systems will fix that problem for older versions of -current. 837 83820101228: 839 The TCP stack has been modified to allow Khelp modules to interact with 840 it via helper hook points and store per-connection data in the TCP 841 control block. Bump __FreeBSD_version to 900029. User space tools that 842 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 843 be recompiled. 844 84520101114: 846 Generic IEEE 802.3 annex 31B full duplex flow control support has been 847 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 848 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 849 to take advantage of it instead of using custom implementations. This 850 means that these drivers now no longer unconditionally advertise 851 support for flow control but only do so if flow control is a selected 852 media option. This was implemented in the generic support that way in 853 order to allow flow control to be switched on and off via ifconfig(8) 854 with the PHY specific default to typically off in order to protect 855 from unwanted effects. Consequently, if you used flow control with 856 one of the above mentioned drivers you now need to explicitly enable 857 it, for example via: 858 ifconfig bge0 media auto mediaopt flowcontrol 859 860 Along with the above mentioned changes generic support for setting 861 1000baseT master mode also has been added and brgphy(4), ciphy(4), 862 e1000phy(4) as well as ip1000phy(4) have been converted to take 863 advantage of it. This means that these drivers now no longer take the 864 link0 parameter for selecting master mode but the master media option 865 has to be used instead, for example like in the following: 866 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 867 868 Selection of master mode now is also available with all other PHY 869 drivers supporting 1000baseT. 870 87120101111: 872 The TCP stack has received a significant update to add support for 873 modularised congestion control and generally improve the clarity of 874 congestion control decisions. Bump __FreeBSD_version to 900025. User 875 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 876 sockstat) need to be recompiled. 877 87820101002: 879 The man(1) utility has been replaced by a new version that no longer 880 uses /etc/manpath.config. Please consult man.conf(5) for how to 881 migrate local entries to the new format. 882 88320100928: 884 The copyright strings printed by login(1) and sshd(8) at the time of a 885 new connection have been removed to follow other operating systems and 886 upstream sshd. 887 88820100915: 889 A workaround for a fixed ld bug has been removed in kernel code, 890 so make sure that your system ld is built from sources after 891 revision 210245 from 2010-07-19 (r211583 if building head kernel 892 on stable/8, r211584 for stable/7; both from 2010-08-21). 893 A symptom of incorrect ld version is different addresses for 894 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 895 89620100913: 897 The $ipv6_prefer variable in rc.conf(5) has been split into 898 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 899 900 The $ip6addrctl_policy is a variable to choose a pre-defined 901 address selection policy set by ip6addrctl(8). A value 902 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 903 default is "AUTO". 904 905 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 906 flag (see an entry of 20090926) is set on an interface with no 907 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 908 security reason. If you want IPv6 link-local address on all 909 interfaces by default, set this to "YES". 910 911 The old ipv6_prefer="YES" is equivalent to 912 ipv6_activate_all_interfaces="YES" and 913 ip6addrctl_policy="ipv6_prefer". 914 91520100913: 916 DTrace has grown support for userland tracing. Due to this, DTrace is 917 now i386 and amd64 only. 918 dtruss(1) is now installed by default on those systems and a new 919 kernel module is needed for userland tracing: fasttrap. 920 No changes to your kernel config file are necessary to enable 921 userland tracing, but you might consider adding 'STRIP=' and 922 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 923 to have informative userland stack traces in DTrace (ustack). 924 92520100725: 926 The acpi_aiboost(4) driver has been removed in favor of the new 927 aibs(4) driver. You should update your kernel configuration file. 928 92920100722: 930 BSD grep has been imported to the base system and it is built by 931 default. It is completely BSD licensed, highly GNU-compatible, uses 932 less memory than its GNU counterpart and has a small codebase. 933 However, it is slower than its GNU counterpart, which is mostly 934 noticeable for larger searches, for smaller ones it is measurable 935 but not significant. The reason is complex, the most important factor 936 is that we lack a modern and efficient regex library and GNU 937 overcomes this by optimizing the searches internally. Future work 938 on improving the regex performance is planned, for the meantime, 939 users that need better performance, can build GNU grep instead by 940 setting the WITH_GNU_GREP knob. 941 94220100713: 943 Due to the import of powerpc64 support, all existing powerpc kernel 944 configuration files must be updated with a machine directive like this: 945 machine powerpc powerpc 946 947 In addition, an updated config(8) is required to build powerpc kernels 948 after this change. 949 95020100713: 951 A new version of ZFS (version 15) has been merged to -HEAD. 952 This version uses a python library for the following subcommands: 953 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 954 For full functionality of these commands the following port must 955 be installed: sysutils/py-zfs 956 95720100429: 958 'vm_page's are now hashed by physical address to an array of mutexes. 959 Currently this is only used to serialize access to hold_count. Over 960 time the page queue mutex will be peeled away. This changes the size 961 of pmap on every architecture. And requires all callers of vm_page_hold 962 and vm_page_unhold to be updated. 963 96420100402: 965 WITH_CTF can now be specified in src.conf (not recommended, there 966 are some problems with static executables), make.conf (would also 967 affect ports which do not use GNU make and do not override the 968 compile targets) or in the kernel config (via "makeoptions 969 WITH_CTF=yes"). 970 When WITH_CTF was specified there before this was silently ignored, 971 so make sure that WITH_CTF is not used in places which could lead 972 to unwanted behavior. 973 97420100311: 975 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 976 to allow 32-bit compatibility on non-x86 platforms. All kernel 977 configurations on amd64 and ia64 platforms using these options must 978 be modified accordingly. 979 98020100113: 981 The utmp user accounting database has been replaced with utmpx, 982 the user accounting interface standardized by POSIX. 983 Unfortunately the semantics of utmp and utmpx don't match, 984 making it practically impossible to support both interfaces. 985 The user accounting database is used by tools like finger(1), 986 last(1), talk(1), w(1) and ac(8). 987 988 All applications in the base system use utmpx. This means only 989 local binaries (e.g. from the ports tree) may still use these 990 utmp database files. These applications must be rebuilt to make 991 use of utmpx. 992 993 After the system has been upgraded, it is safe to remove the old 994 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 995 assuming their contents is of no importance anymore. Old wtmp 996 databases can only be used by last(1) and ac(8) after they have 997 been converted to the new format using wtmpcvt(1). 998 99920100108: 1000 Introduce the kernel thread "deadlock resolver" (which can be enabled 1001 via the DEADLKRES option, see NOTES for more details) and the 1002 sleepq_type() function for sleepqueues. 1003 100420091202: 1005 The rc.firewall and rc.firewall6 were unified, and 1006 rc.firewall6 and rc.d/ip6fw were removed. 1007 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1008 variables are obsoleted. Instead, the following new rc 1009 variables are added to rc.d/ipfw: 1010 1011 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1012 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1013 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1014 1015 The meanings correspond to the relevant IPv4 variables. 1016 101720091125: 1018 8.0-RELEASE. 1019 102020091113: 1021 The default terminal emulation for syscons(4) has been changed 1022 from cons25 to xterm on all platforms except pc98. This means 1023 that the /etc/ttys file needs to be updated to ensure correct 1024 operation of applications on the console. 1025 1026 The terminal emulation style can be toggled per window by using 1027 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1028 options can be used to change the compile-time default back to 1029 cons25. 1030 1031 To prevent graphical artifacts, make sure the TERM environment 1032 variable is set to match the terminal emulation that is being 1033 performed by syscons(4). 1034 103520091109: 1036 The layout of the structure ieee80211req_scan_result has changed. 1037 Applications that require wireless scan results (e.g. ifconfig(8)) 1038 from net80211 need to be recompiled. 1039 1040 Applications such as wpa_supplicant(8) may require a full world 1041 build without using NO_CLEAN in order to get synchronized with the 1042 new structure. 1043 104420091025: 1045 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1046 There's one kernel module for each firmware. Adding "device iwnfw" 1047 to the kernel configuration file means including all three firmware 1048 images inside the kernel. If you want to include just the one for 1049 your wireless card, use the devices iwn4965fw, iwn5000fw or 1050 iwn5150fw. 1051 105220090926: 1053 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1054 into rc.d/netif. The changes are the following: 1055 1056 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1057 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1058 Note that both variables need the "inet6" keyword at the head. 1059 1060 Do not set $ipv6_network_interfaces manually if you do not 1061 understand what you are doing. It is not needed in most cases. 1062 1063 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1064 they are obsolete. 1065 1066 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1067 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1068 1069 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1070 all configured interfaces have "inet6 accept_rtadv" in the 1071 $ifconfig_IF_ipv6. These are for backward compatibility. 1072 1073 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1074 functionality of interfaces with no corresponding 1075 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1076 and the default address selection policy of ip6addrctl(8) 1077 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1078 Note that if you want to configure IPv6 functionality on the 1079 disabled interfaces after boot, first you need to clear the flag by 1080 using ifconfig(8) like: 1081 1082 ifconfig em0 inet6 -ifdisabled 1083 1084 If YES, the default address selection policy is set as 1085 IPv6-preferred. 1086 1087 The default value of $ipv6_prefer is NO. 1088 1089 4. If your system need to receive Router Advertisement messages, 1090 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1091 scripts automatically invoke rtsol(8) when the interface becomes 1092 UP. The Router Advertisement messages are used for SLAAC 1093 (State-Less Address AutoConfiguration). 1094 109520090922: 1096 802.11s D3.03 support was committed. This is incompatible with the 1097 previous code, which was based on D3.0. 1098 109920090912: 1100 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1101 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1102 control whether accepting Router Advertisement messages or not. 1103 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1104 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1105 The ifconfig(8) utility now supports these flags. 1106 110720090910: 1108 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1109 mount(8) and -a option for df(1) to see them. 1110 111120090825: 1112 The old tunable hw.bus.devctl_disable has been superseded by 1113 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1114 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1115 is 1000. 1116 111720090813: 1118 Remove the option STOP_NMI. The default action is now to use NMI only 1119 for KDB via the newly introduced function stop_cpus_hard() and 1120 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1121 112220090803: 1123 The stable/8 branch created in subversion. This corresponds to the 1124 RELENG_8 branch in CVS. 1125 112620090719: 1127 Bump the shared library version numbers for all libraries that do not 1128 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1129 __FreeBSD_version to 800105. 1130 113120090714: 1132 Due to changes in the implementation of virtual network stack support, 1133 all network-related kernel modules must be recompiled. As this change 1134 breaks the ABI, bump __FreeBSD_version to 800104. 1135 113620090713: 1137 The TOE interface to the TCP syncache has been modified to remove 1138 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1139 The cxgb driver is the only TOE consumer affected by this change, and 1140 needs to be recompiled along with the kernel. As this change breaks 1141 the ABI, bump __FreeBSD_version to 800103. 1142 114320090712: 1144 Padding has been added to struct tcpcb, sackhint and tcpstat in 1145 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1146 maintaining the ABI. However, this change breaks the ABI, so bump 1147 __FreeBSD_version to 800102. User space tools that rely on the size of 1148 any of these structs (e.g. sockstat) need to be recompiled. 1149 115020090630: 1151 The NFS_LEGACYRPC option has been removed along with the old kernel 1152 RPC implementation that this option selected. Kernel configurations 1153 may need to be adjusted. 1154 115520090629: 1156 The network interface device nodes at /dev/net/<interface> have been 1157 removed. All ioctl operations can be performed the normal way using 1158 routing sockets. The kqueue functionality can generally be replaced 1159 with routing sockets. 1160 116120090628: 1162 The documentation from the FreeBSD Documentation Project (Handbook, 1163 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1164 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1165 116620090624: 1167 The ABI of various structures related to the SYSV IPC API have been 1168 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1169 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1170 800100. 1171 117220090622: 1173 Layout of struct vnet has changed as routing related variables were 1174 moved to their own Vimage module. Modules need to be recompiled. Bump 1175 __FreeBSD_version to 800099. 1176 117720090619: 1178 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1179 respectively. As long as no more than 16 groups per process are used, 1180 no changes should be visible. When more than 16 groups are used, old 1181 binaries may fail if they call getgroups() or getgrouplist() with 1182 statically sized storage. Recompiling will work around this, but 1183 applications should be modified to use dynamically allocated storage 1184 for group arrays as POSIX.1-2008 does not cap an implementation's 1185 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1186 1187 NFS and portalfs mounts may also be affected as the list of groups is 1188 truncated to 16. Users of NFS who use more than 16 groups, should 1189 take care that negative group permissions are not used on the exported 1190 file systems as they will not be reliable unless a GSSAPI based 1191 authentication method is used. 1192 119320090616: 1194 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1195 option compiles in the support for adaptive spinning for lockmgrs 1196 which want to enable it. The lockinit() function now accepts the flag 1197 LK_ADAPTIVE in order to make the lock object subject to adaptive 1198 spinning when both held in write and read mode. 1199 120020090613: 1201 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1202 changed. User applications that use this ioctl need to be rebuilt. 1203 120420090611: 1205 The layout of struct thread has changed. Kernel and modules need to 1206 be rebuilt. 1207 120820090608: 1209 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1210 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1211 121220090602: 1213 window(1) has been removed from the base system. It can now be 1214 installed from ports. The port is called misc/window. 1215 121620090601: 1217 The way we are storing and accessing `routing table' entries has 1218 changed. Programs reading the FIB, like netstat, need to be 1219 re-compiled. 1220 122120090601: 1222 A new netisr implementation has been added for FreeBSD 8. Network 1223 file system modules, such as igmp, ipdivert, and others, should be 1224 rebuilt. 1225 Bump __FreeBSD_version to 800096. 1226 122720090530: 1228 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1229 more valid. 1230 123120090530: 1232 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1233 Bump __FreeBSD_version to 800094. 1234 123520090529: 1236 Add mnt_xflag field to 'struct mount'. File system modules need to be 1237 rebuilt. 1238 Bump __FreeBSD_version to 800093. 1239 124020090528: 1241 The compiling option ADAPTIVE_SX has been retired while it has been 1242 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1243 The KPI for sx_init_flags() changes as accepting flags: 1244 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1245 been introduced in order to handle the reversed logic. 1246 Bump __FreeBSD_version to 800092. 1247 124820090527: 1249 Add support for hierarchical jails. Remove global securelevel. 1250 Bump __FreeBSD_version to 800091. 1251 125220090523: 1253 The layout of struct vnet_net has changed, therefore modules 1254 need to be rebuilt. 1255 Bump __FreeBSD_version to 800090. 1256 125720090523: 1258 The newly imported zic(8) produces a new format in the output. Please 1259 run tzsetup(8) to install the newly created data to /etc/localtime. 1260 126120090520: 1262 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1263 hw.usb.* and is now consistent again with previous releases. 1264 126520090520: 1266 802.11 monitor mode support was revised and driver api's were changed. 1267 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1268 of DLT_IEEE802_11. No user-visible data structures were changed but 1269 applications that use DLT_IEEE802_11 may require changes. 1270 Bump __FreeBSD_version to 800088. 1271 127220090430: 1273 The layout of the following structs has changed: sysctl_oid, 1274 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1275 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1276 panics may be experienced. World rebuild is required for 1277 correctly checking networking state from userland. 1278 Bump __FreeBSD_version to 800085. 1279 128020090429: 1281 MLDv2 and Source-Specific Multicast (SSM) have been merged 1282 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1283 The implementation of SSM within FreeBSD's IPv6 stack closely 1284 follows the IPv4 implementation. 1285 1286 For kernel developers: 1287 1288 * The most important changes are that the ip6_output() and 1289 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1290 and this lock has been downgraded to a non-recursive mutex. 1291 1292 * As with the changes to the IPv4 stack to support SSM, filtering 1293 of inbound multicast traffic must now be performed by transport 1294 protocols within the IPv6 stack. This does not apply to TCP and 1295 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1296 1297 * The KPIs used by IPv6 multicast are similar to those used by 1298 the IPv4 stack, with the following differences: 1299 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1300 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1301 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1302 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1303 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1304 for MLDv1 have an additional 'timer' argument which is used to 1305 jitter the initial membership report for the solicited-node 1306 multicast membership on-link. 1307 * This is not strictly needed for MLDv2, which already jitters 1308 its report transmissions. However, the 'timer' argument is 1309 preserved in case MLDv1 is active on the interface. 1310 1311 * The KAME linked-list based IPv6 membership implementation has 1312 been refactored to use a vector similar to that used by the IPv4 1313 stack. 1314 Code which maintains a list of its own multicast memberships 1315 internally, e.g. carp, has been updated to reflect the new 1316 semantics. 1317 1318 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1319 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1320 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1321 implementation constraint which needs to be addressed in HEAD. 1322 1323 For application developers: 1324 1325 * The changes are broadly similar to those made for the IPv4 1326 stack. 1327 1328 * The use of IPv4 and IPv6 multicast socket options on the same 1329 socket, using mapped addresses, HAS NOT been tested or supported. 1330 1331 * There are a number of issues with the implementation of various 1332 IPv6 multicast APIs which need to be resolved in the API surface 1333 before the implementation is fully compatible with KAME userland 1334 use, and these are mostly to do with interface index treatment. 1335 1336 * The literature available discusses the use of either the delta / ASM 1337 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1338 using setsourcefilter(3)/getsourcefilter(3). For more information 1339 please refer to RFC 3768, 'Socket Interface Extensions for 1340 Multicast Source Filters'. 1341 1342 * Applications which use the published RFC 3678 APIs should be fine. 1343 1344 For systems administrators: 1345 1346 * The mtest(8) utility has been refactored to support IPv6, in 1347 addition to IPv4. Interface addresses are no longer accepted 1348 as arguments, their names must be used instead. The utility 1349 will map the interface name to its first IPv4 address as 1350 returned by getifaddrs(3). 1351 1352 * The ifmcstat(8) utility has also been updated to print the MLDv2 1353 endpoint state and source filter lists via sysctl(3). 1354 1355 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1356 loopback of IPv6 multicast datagrams by default; it defaults to 1 1357 to preserve the existing behaviour. Disabling multicast loopback is 1358 recommended for optimal system performance. 1359 1360 * The IPv6 MROUTING code has been changed to examine this sysctl 1361 instead of attempting to perform a group lookup before looping 1362 back forwarded datagrams. 1363 1364 Bump __FreeBSD_version to 800084. 1365 136620090422: 1367 Implement low-level Bluetooth HCI API. 1368 Bump __FreeBSD_version to 800083. 1369 137020090419: 1371 The layout of struct malloc_type, used by modules to register new 1372 memory allocation types, has changed. Most modules will need to 1373 be rebuilt or panics may be experienced. 1374 Bump __FreeBSD_version to 800081. 1375 137620090415: 1377 Anticipate overflowing inp_flags - add inp_flags2. 1378 This changes most offsets in inpcb, so checking v4 connection 1379 state will require a world rebuild. 1380 Bump __FreeBSD_version to 800080. 1381 138220090415: 1383 Add an llentry to struct route and struct route_in6. Modules 1384 embedding a struct route will need to be recompiled. 1385 Bump __FreeBSD_version to 800079. 1386 138720090414: 1388 The size of rt_metrics_lite and by extension rtentry has changed. 1389 Networking administration apps will need to be recompiled. 1390 The route command now supports show as an alias for get, weighting 1391 of routes, sticky and nostick flags to alter the behavior of stateful 1392 load balancing. 1393 Bump __FreeBSD_version to 800078. 1394 139520090408: 1396 Do not use Giant for kbdmux(4) locking. This is wrong and 1397 apparently causing more problems than it solves. This will 1398 re-open the issue where interrupt handlers may race with 1399 kbdmux(4) in polling mode. Typical symptoms include (but 1400 not limited to) duplicated and/or missing characters when 1401 low level console functions (such as gets) are used while 1402 interrupts are enabled (for example geli password prompt, 1403 mountroot prompt etc.). Disabling kbdmux(4) may help. 1404 140520090407: 1406 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1407 kernel modules referencing any of the above need to be recompiled. 1408 Bump __FreeBSD_version to 800075. 1409 141020090320: 1411 GEOM_PART has become the default partition slicer for storage devices, 1412 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1413 introduces some changes: 1414 1415 MSDOS/EBR: the devices created from MSDOS extended partition entries 1416 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1417 to devices with offset-based names. fstabs may need to be modified. 1418 1419 BSD: the "geometry does not match label" warning is harmless in most 1420 cases but it points to problems in file system misalignment with 1421 disk geometry. The "c" partition is now implicit, covers the whole 1422 top-level drive and cannot be (mis)used by users. 1423 1424 General: Kernel dumps are now not allowed to be written to devices 1425 whose partition types indicate they are meant to be used for file 1426 systems (or, in case of MSDOS partitions, as something else than 1427 the "386BSD" type). 1428 1429 Most of these changes date approximately from 200812. 1430 143120090319: 1432 The uscanner(4) driver has been removed from the kernel. This follows 1433 Linux removing theirs in 2.6 and making libusb the default interface 1434 (supported by sane). 1435 143620090319: 1437 The multicast forwarding code has been cleaned up. netstat(1) 1438 only relies on KVM now for printing bandwidth upcall meters. 1439 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1440 ip6_mroute_mod respectively. The config(5) options for statically 1441 compiling this code remain the same, i.e. 'options MROUTING'. 1442 144320090315: 1444 Support for the IFF_NEEDSGIANT network interface flag has been 1445 removed, which means that non-MPSAFE network device drivers are no 1446 longer supported. In particular, if_ar, if_sr, and network device 1447 drivers from the old (legacy) USB stack can no longer be built or 1448 used. 1449 145020090313: 1451 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1452 a bunch of new language catalog files have also been added. 1453 This means that some common libc messages are now localized and 1454 they depend on the LC_MESSAGES environmental variable. 1455 145620090313: 1457 The k8temp(4) driver has been renamed to amdtemp(4) since 1458 support for Family 10 and Family 11 CPU families was added. 1459 146020090309: 1461 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1462 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1463 1464 For kernel developers, the most important changes are that the 1465 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1466 and this lock has been downgraded to a non-recursive mutex. 1467 1468 Transport protocols (UDP, Raw IP) are now responsible for filtering 1469 inbound multicast traffic according to group membership and source 1470 filters. The imo_multicast_filter() KPI exists for this purpose. 1471 Transports which do not use multicast (SCTP, TCP) already reject 1472 multicast by default. Forwarding and receive performance may improve 1473 as a mutex acquisition is no longer needed in the ip_input() 1474 low-level input path. in_addmulti() and in_delmulti() are shimmed 1475 to new KPIs which exist to support SSM in-kernel. 1476 1477 For application developers, it is recommended that loopback of 1478 multicast datagrams be disabled for best performance, as this 1479 will still cause the lock to be taken for each looped-back 1480 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1481 be tuned to 0 to disable loopback by default; it defaults to 1 1482 to preserve the existing behaviour. 1483 1484 For systems administrators, to obtain best performance with 1485 multicast reception and multiple groups, it is always recommended 1486 that a card with a suitably precise hash filter is used. Hash 1487 collisions will still result in the lock being taken within the 1488 transport protocol input path to check group membership. 1489 1490 If deploying FreeBSD in an environment with IGMP snooping switches, 1491 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1492 enabled; this forces 224.0.0.0/24 group membership to be announced 1493 via IGMP. 1494 1495 The size of 'struct igmpstat' has changed; netstat needs to be 1496 recompiled to reflect this. 1497 Bump __FreeBSD_version to 800070. 1498 149920090309: 1500 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1501 updated to use it. This requires a buildworld/installworld in order to 1502 update the library and dependencies (usbconfig, etc). Its advisable to 1503 rebuild all ports which uses libusb. More specific directions are given 1504 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1505 libusb are no longer required and can be removed. 1506 150720090302: 1508 A workaround is committed to allow the creation of System V shared 1509 memory segment of size > 2 GB on the 64-bit architectures. 1510 Due to a limitation of the existing ABI, the shm_segsz member 1511 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1512 wrong for large segments. Note that limits must be explicitly 1513 raised to allow such segments to be created. 1514 151520090301: 1516 The layout of struct ifnet has changed, requiring a rebuild of all 1517 network device driver modules. 1518 151920090227: 1520 The /dev handling for the new USB stack has changed, a 1521 buildworld/installworld is required for libusb20. 1522 152320090223: 1524 The new USB2 stack has now been permanently moved in and all kernel and 1525 module names reverted to their previous values (eg, usb, ehci, ohci, 1526 ums, ...). The old usb stack can be compiled in by prefixing the name 1527 with the letter 'o', the old usb modules have been removed. 1528 Updating entry 20090216 for xorg and 20090215 for libmap may still 1529 apply. 1530 153120090217: 1532 The rc.conf(5) option if_up_delay has been renamed to 1533 defaultroute_delay to better reflect its purpose. If you have 1534 customized this setting in /etc/rc.conf you need to update it to 1535 use the new name. 1536 153720090216: 1538 xorg 7.4 wants to configure its input devices via hald which does not 1539 yet work with USB2. If the keyboard/mouse does not work in xorg then 1540 add 1541 Option "AllowEmptyInput" "off" 1542 to your ServerLayout section. This will cause X to use the configured 1543 kbd and mouse sections from your xorg.conf. 1544 154520090215: 1546 The GENERIC kernels for all architectures now default to the new USB2 1547 stack. No kernel config options or code have been removed so if a 1548 problem arises please report it and optionally revert to the old USB 1549 stack. If you are loading USB kernel modules or have a custom kernel 1550 that includes GENERIC then ensure that usb names are also changed over, 1551 eg uftdi -> usb2_serial_ftdi. 1552 1553 Older programs linked against the ports libusb 0.1 need to be 1554 redirected to the new stack's libusb20. /etc/libmap.conf can 1555 be used for this: 1556 # Map old usb library to new one for usb2 stack 1557 libusb-0.1.so.8 libusb20.so.1 1558 155920090209: 1560 All USB ethernet devices now attach as interfaces under the name ueN 1561 (eg. ue0). This is to provide a predictable name as vendors often 1562 change usb chipsets in a product without notice. 1563 156420090203: 1565 The ichsmb(4) driver has been changed to require SMBus slave 1566 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1567 All of the other SMBus controller drivers require left-justified 1568 slave addresses, so this change makes all the drivers provide the 1569 same interface. 1570 157120090201: 1572 INET6 statistics (struct ip6stat) was updated. 1573 netstat(1) needs to be recompiled. 1574 157520090119: 1576 NTFS has been removed from GENERIC kernel on amd64 to match 1577 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1578 will load ntfs.ko module automatically when NTFS support is 1579 actually needed, unless ntfs.ko is not installed or security 1580 level prohibits loading kernel modules. If either is the case, 1581 "options NTFS" has to be added into kernel config. 1582 158320090115: 1584 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1585 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1586 800061. User space tools that rely on the size of struct tcpcb in 1587 tcp_var.h (e.g. sockstat) need to be recompiled. 1588 158920081225: 1590 ng_tty(4) module updated to match the new TTY subsystem. 1591 Due to API change, user-level applications must be updated. 1592 New API support added to mpd5 CVS and expected to be present 1593 in next mpd5.3 release. 1594 159520081219: 1596 With __FreeBSD_version 800060 the makefs tool is part of 1597 the base system (it was a port). 1598 159920081216: 1600 The afdata and ifnet locks have been changed from mutexes to 1601 rwlocks, network modules will need to be re-compiled. 1602 160320081214: 1604 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1605 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1606 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1607 architecture and 40 bytes on 64-bit architecture. The userland 1608 applications "arp" and "ndp" have been updated accordingly. 1609 The output from "netstat -r" shows only routing entries and 1610 none of the L2 information. 1611 161220081130: 1613 __FreeBSD_version 800057 marks the switchover from the 1614 binary ath hal to source code. Users must add the line: 1615 1616 options AH_SUPPORT_AR5416 1617 1618 to their kernel config files when specifying: 1619 1620 device ath_hal 1621 1622 The ath_hal module no longer exists; the code is now compiled 1623 together with the driver in the ath module. It is now 1624 possible to tailor chip support (i.e. reduce the set of chips 1625 and thereby the code size); consult ath_hal(4) for details. 1626 162720081121: 1628 __FreeBSD_version 800054 adds memory barriers to 1629 <machine/atomic.h>, new interfaces to ifnet to facilitate 1630 multiple hardware transmit queues for cards that support 1631 them, and a lock-less ring-buffer implementation to 1632 enable drivers to more efficiently manage queueing of 1633 packets. 1634 163520081117: 1636 A new version of ZFS (version 13) has been merged to -HEAD. 1637 This version has zpool attribute "listsnapshots" off by 1638 default, which means "zfs list" does not show snapshots, 1639 and is the same as Solaris behavior. 1640 164120081028: 1642 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1643 164420081009: 1645 The uhci, ohci, ehci and slhci USB Host controller drivers have 1646 been put into separate modules. If you load the usb module 1647 separately through loader.conf you will need to load the 1648 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1649 controller add the following to loader.conf: 1650 1651 uhci_load="YES" 1652 ehci_load="YES" 1653 165420081009: 1655 The ABI used by the PMC toolset has changed. Please keep 1656 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1657 sync. 1658 165920081009: 1660 atapci kernel module now includes only generic PCI ATA 1661 driver. AHCI driver moved to ataahci kernel module. 1662 All vendor-specific code moved into separate kernel modules: 1663 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1664 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1665 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1666 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1667 166820080820: 1669 The TTY subsystem of the kernel has been replaced by a new 1670 implementation, which provides better scalability and an 1671 improved driver model. Most common drivers have been migrated to 1672 the new TTY subsystem, while others have not. The following 1673 drivers have not yet been ported to the new TTY layer: 1674 1675 PCI/ISA: 1676 cy, digi, rc, rp, sio 1677 1678 USB: 1679 ubser, ucycom 1680 1681 Line disciplines: 1682 ng_h4, ng_tty, ppp, sl, snp 1683 1684 Adding these drivers to your kernel configuration file shall 1685 cause compilation to fail. 1686 168720080818: 1688 ntpd has been upgraded to 4.2.4p5. 1689 169020080801: 1691 OpenSSH has been upgraded to 5.1p1. 1692 1693 For many years, FreeBSD's version of OpenSSH preferred DSA 1694 over RSA for host and user authentication keys. With this 1695 upgrade, we've switched to the vendor's default of RSA over 1696 DSA. This may cause upgraded clients to warn about unknown 1697 host keys even for previously known hosts. Users should 1698 follow the usual procedure for verifying host keys before 1699 accepting the RSA key. 1700 1701 This can be circumvented by setting the "HostKeyAlgorithms" 1702 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1703 command line. 1704 1705 Please note that the sequence of keys offered for 1706 authentication has been changed as well. You may want to 1707 specify IdentityFile in a different order to revert this 1708 behavior. 1709 171020080713: 1711 The sio(4) driver has been removed from the i386 and amd64 1712 kernel configuration files. This means uart(4) is now the 1713 default serial port driver on those platforms as well. 1714 1715 To prevent collisions with the sio(4) driver, the uart(4) driver 1716 uses different names for its device nodes. This means the 1717 onboard serial port will now most likely be called "ttyu0" 1718 instead of "ttyd0". You may need to reconfigure applications to 1719 use the new device names. 1720 1721 When using the serial port as a boot console, be sure to update 1722 /boot/device.hints and /etc/ttys before booting the new kernel. 1723 If you forget to do so, you can still manually specify the hints 1724 at the loader prompt: 1725 1726 set hint.uart.0.at="isa" 1727 set hint.uart.0.port="0x3F8" 1728 set hint.uart.0.flags="0x10" 1729 set hint.uart.0.irq="4" 1730 boot -s 1731 173220080609: 1733 The gpt(8) utility has been removed. Use gpart(8) to partition 1734 disks instead. 1735 173620080603: 1737 The version that Linuxulator emulates was changed from 2.4.2 1738 to 2.6.16. If you experience any problems with Linux binaries 1739 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1740 if it fixes the problem contact emulation mailing list. 1741 174220080525: 1743 ISDN4BSD (I4B) was removed from the src tree. You may need to 1744 update a your kernel configuration and remove relevant entries. 1745 174620080509: 1747 I have checked in code to support multiple routing tables. 1748 See the man pages setfib(1) and setfib(2). 1749 This is a hopefully backwards compatible version, 1750 but to make use of it you need to compile your kernel 1751 with options ROUTETABLES=2 (or more up to 16). 1752 175320080420: 1754 The 802.11 wireless support was redone to enable multi-bss 1755 operation on devices that are capable. The underlying device 1756 is no longer used directly but instead wlanX devices are 1757 cloned with ifconfig. This requires changes to rc.conf files. 1758 For example, change: 1759 ifconfig_ath0="WPA DHCP" 1760 to 1761 wlans_ath0=wlan0 1762 ifconfig_wlan0="WPA DHCP" 1763 see rc.conf(5) for more details. In addition, mergemaster of 1764 /etc/rc.d is highly recommended. Simultaneous update of userland 1765 and kernel wouldn't hurt either. 1766 1767 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1768 modules were merged into the base wlan module. All references 1769 to these modules (e.g. in kernel config files) must be removed. 1770 177120080408: 1772 psm(4) has gained write(2) support in native operation level. 1773 Arbitrary commands can be written to /dev/psm%d and status can 1774 be read back from it. Therefore, an application is responsible 1775 for status validation and error recovery. It is a no-op in 1776 other operation levels. 1777 177820080312: 1779 Support for KSE threading has been removed from the kernel. To 1780 run legacy applications linked against KSE libmap.conf may 1781 be used. The following libmap.conf may be used to ensure 1782 compatibility with any prior release: 1783 1784 libpthread.so.1 libthr.so.1 1785 libpthread.so.2 libthr.so.2 1786 libkse.so.3 libthr.so.3 1787 178820080301: 1789 The layout of struct vmspace has changed. This affects libkvm 1790 and any executables that link against libkvm and use the 1791 kvm_getprocs() function. In particular, but not exclusively, 1792 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1793 The effects are minimal, but it's advisable to upgrade world 1794 nonetheless. 1795 179620080229: 1797 The latest em driver no longer has support in it for the 1798 82575 adapter, this is now moved to the igb driver. The 1799 split was done to make new features that are incompatible 1800 with older hardware easier to do. 1801 180220080220: 1803 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1804 likewise the kernel option is now GEOM_LINUX_LVM. 1805 180620080211: 1807 The default NFS mount mode has changed from UDP to TCP for 1808 increased reliability. If you rely on (insecurely) NFS 1809 mounting across a firewall you may need to update your 1810 firewall rules. 1811 181220080208: 1813 Belatedly note the addition of m_collapse for compacting 1814 mbuf chains. 1815 181620080126: 1817 The fts(3) structures have been changed to use adequate 1818 integer types for their members and so to be able to cope 1819 with huge file trees. The old fts(3) ABI is preserved 1820 through symbol versioning in libc, so third-party binaries 1821 using fts(3) should still work, although they will not take 1822 advantage of the extended types. At the same time, some 1823 third-party software might fail to build after this change 1824 due to unportable assumptions made in its source code about 1825 fts(3) structure members. Such software should be fixed 1826 by its vendor or, in the worst case, in the ports tree. 1827 FreeBSD_version 800015 marks this change for the unlikely 1828 case that a portable fix is impossible. 1829 183020080123: 1831 To upgrade to -current after this date, you must be running 1832 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1833 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1834 183520071128: 1836 The ADAPTIVE_GIANT kernel option has been retired because its 1837 functionality is the default now. 1838 183920071118: 1840 The AT keyboard emulation of sunkbd(4) has been turned on 1841 by default. In order to make the special symbols of the Sun 1842 keyboards driven by sunkbd(4) work under X these now have 1843 to be configured the same way as Sun USB keyboards driven 1844 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1845 1846 Option "XkbLayout" "us" 1847 Option "XkbRules" "xorg" 1848 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1849 185020071024: 1851 It has been decided that it is desirable to provide ABI 1852 backwards compatibility to the FreeBSD 4/5/6 versions of the 1853 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1854 broken with the introduction of PCI domain support (see the 1855 20070930 entry). Unfortunately, this required the ABI of 1856 PCIOCGETCONF to be broken again in order to be able to 1857 provide backwards compatibility to the old version of that 1858 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1859 again. As for prominent ports this affects neither pciutils 1860 nor xorg-server this time, the hal port needs to be rebuilt 1861 however. 1862 186320071020: 1864 The misnamed kthread_create() and friends have been renamed 1865 to kproc_create() etc. Many of the callers already 1866 used kproc_start().. 1867 I will return kthread_create() and friends in a while 1868 with implementations that actually create threads, not procs. 1869 Renaming corresponds with version 800002. 1870 187120071010: 1872 RELENG_7 branched. 1873 1874COMMON ITEMS: 1875 1876 General Notes 1877 ------------- 1878 Avoid using make -j when upgrading. While generally safe, there are 1879 sometimes problems using -j to upgrade. If your upgrade fails with 1880 -j, please try again without -j. From time to time in the past there 1881 have been problems using -j with buildworld and/or installworld. This 1882 is especially true when upgrading between "distant" versions (eg one 1883 that cross a major release boundary or several minor releases, or when 1884 several months have passed on the -current branch). 1885 1886 Sometimes, obscure build problems are the result of environment 1887 poisoning. This can happen because the make utility reads its 1888 environment when searching for values for global variables. To run 1889 your build attempts in an "environmental clean room", prefix all make 1890 commands with 'env -i '. See the env(1) manual page for more details. 1891 1892 When upgrading from one major version to another it is generally best 1893 to upgrade to the latest code in the currently installed branch first, 1894 then do an upgrade to the new branch. This is the best-tested upgrade 1895 path, and has the highest probability of being successful. Please try 1896 this approach before reporting problems with a major version upgrade. 1897 1898 When upgrading a live system, having a root shell around before 1899 installing anything can help undo problems. Not having a root shell 1900 around can lead to problems if pam has changed too much from your 1901 starting point to allow continued authentication after the upgrade. 1902 1903 ZFS notes 1904 --------- 1905 When upgrading the boot ZFS pool to a new version, always follow 1906 these two steps: 1907 1908 1.) recompile and reinstall the ZFS boot loader and boot block 1909 (this is part of "make buildworld" and "make installworld") 1910 1911 2.) update the ZFS boot block on your boot drive 1912 1913 The following example updates the ZFS boot block on the first 1914 partition (freebsd-boot) of a GPT partitioned drive ad0: 1915 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1916 1917 Non-boot pools do not need these updates. 1918 1919 To build a kernel 1920 ----------------- 1921 If you are updating from a prior version of FreeBSD (even one just 1922 a few days old), you should follow this procedure. It is the most 1923 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1924 1925 make kernel-toolchain 1926 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1927 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1928 1929 To test a kernel once 1930 --------------------- 1931 If you just want to boot a kernel once (because you are not sure 1932 if it works, or if you want to boot a known bad kernel to provide 1933 debugging information) run 1934 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1935 nextboot -k testkernel 1936 1937 To just build a kernel when you know that it won't mess you up 1938 -------------------------------------------------------------- 1939 This assumes you are already running a CURRENT system. Replace 1940 ${arch} with the architecture of your machine (e.g. "i386", 1941 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1942 1943 cd src/sys/${arch}/conf 1944 config KERNEL_NAME_HERE 1945 cd ../compile/KERNEL_NAME_HERE 1946 make depend 1947 make 1948 make install 1949 1950 If this fails, go to the "To build a kernel" section. 1951 1952 To rebuild everything and install it on the current system. 1953 ----------------------------------------------------------- 1954 # Note: sometimes if you are running current you gotta do more than 1955 # is listed here if you are upgrading from a really old current. 1956 1957 <make sure you have good level 0 dumps> 1958 make buildworld 1959 make kernel KERNCONF=YOUR_KERNEL_HERE 1960 [1] 1961 <reboot in single user> [3] 1962 mergemaster -p [5] 1963 make installworld 1964 mergemaster -i [4] 1965 make delete-old [6] 1966 <reboot> 1967 1968 To cross-install current onto a separate partition 1969 -------------------------------------------------- 1970 # In this approach we use a separate partition to hold 1971 # current's root, 'usr', and 'var' directories. A partition 1972 # holding "/", "/usr" and "/var" should be about 2GB in 1973 # size. 1974 1975 <make sure you have good level 0 dumps> 1976 <boot into -stable> 1977 make buildworld 1978 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1979 <maybe newfs current's root partition> 1980 <mount current's root partition on directory ${CURRENT_ROOT}> 1981 make installworld DESTDIR=${CURRENT_ROOT} 1982 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1983 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1984 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1985 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1986 <reboot into current> 1987 <do a "native" rebuild/install as described in the previous section> 1988 <maybe install compatibility libraries from ports/misc/compat*> 1989 <reboot> 1990 1991 1992 To upgrade in-place from stable to current 1993 ---------------------------------------------- 1994 <make sure you have good level 0 dumps> 1995 make buildworld [9] 1996 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1997 [1] 1998 <reboot in single user> [3] 1999 mergemaster -p [5] 2000 make installworld 2001 mergemaster -i [4] 2002 make delete-old [6] 2003 <reboot> 2004 2005 Make sure that you've read the UPDATING file to understand the 2006 tweaks to various things you need. At this point in the life 2007 cycle of current, things change often and you are on your own 2008 to cope. The defaults can also change, so please read ALL of 2009 the UPDATING entries. 2010 2011 Also, if you are tracking -current, you must be subscribed to 2012 freebsd-current@freebsd.org. Make sure that before you update 2013 your sources that you have read and understood all the recent 2014 messages there. If in doubt, please track -stable which has 2015 much fewer pitfalls. 2016 2017 [1] If you have third party modules, such as vmware, you 2018 should disable them at this point so they don't crash your 2019 system on reboot. 2020 2021 [3] From the bootblocks, boot -s, and then do 2022 fsck -p 2023 mount -u / 2024 mount -a 2025 cd src 2026 adjkerntz -i # if CMOS is wall time 2027 Also, when doing a major release upgrade, it is required that 2028 you boot into single user mode to do the installworld. 2029 2030 [4] Note: This step is non-optional. Failure to do this step 2031 can result in a significant reduction in the functionality of the 2032 system. Attempting to do it by hand is not recommended and those 2033 that pursue this avenue should read this file carefully, as well 2034 as the archives of freebsd-current and freebsd-hackers mailing lists 2035 for potential gotchas. The -U option is also useful to consider. 2036 See mergemaster(8) for more information. 2037 2038 [5] Usually this step is a noop. However, from time to time 2039 you may need to do this if you get unknown user in the following 2040 step. It never hurts to do it all the time. You may need to 2041 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2042 install) after the buildworld before this step if you last updated 2043 from current before 20130425 or from -stable before 20130430. 2044 2045 [6] This only deletes old files and directories. Old libraries 2046 can be deleted by "make delete-old-libs", but you have to make 2047 sure that no program is using those libraries anymore. 2048 2049 [8] In order to have a kernel that can run the 4.x binaries needed to 2050 do an installworld, you must include the COMPAT_FREEBSD4 option in 2051 your kernel. Failure to do so may leave you with a system that is 2052 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2053 required to run the 5.x binaries on more recent kernels. And so on 2054 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2055 2056 Make sure that you merge any new devices from GENERIC since the 2057 last time you updated your kernel config file. 2058 2059 [9] When checking out sources, you must include the -P flag to have 2060 cvs prune empty directories. 2061 2062 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2063 "?=" instead of the "=" assignment operator, so that buildworld can 2064 override the CPUTYPE if it needs to. 2065 2066 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2067 not on the command line, or in /etc/make.conf. buildworld will 2068 warn if it is improperly defined. 2069FORMAT: 2070 2071This file contains a list, in reverse chronological order, of major 2072breakages in tracking -current. It is not guaranteed to be a complete 2073list of such breakages, and only contains entries since October 10, 2007. 2074If you need to see UPDATING entries from before that date, you will need 2075to fetch an UPDATING file from an older FreeBSD release. 2076 2077Copyright information: 2078 2079Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2080 2081Redistribution, publication, translation and use, with or without 2082modification, in full or in part, in any form or format of this 2083document are permitted without further permission from the author. 2084 2085THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2086IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2087WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2088DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2089INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2090(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2091SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2092HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2093STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2094IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2095POSSIBILITY OF SUCH DAMAGE. 2096 2097Contact Warner Losh if you have any questions about your use of 2098this document. 2099 2100$FreeBSD: stable/10/UPDATING 268708 2014-07-15 18:41:30Z mav $ 2101