UPDATING revision 279264
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 1920150225: p6 FreeBSD-SA-15:04.igmp 20 FreeBSD-EN-15:01.vt 21 FreeBSD-EN-15:02.openssl 22 FreeBSD-EN-15:03.freebsd-update 23 24 Fix integer overflow in IGMP protocol. [SA-15:04] 25 26 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 27 28 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 29 30 Fix freebsd-update libraries update ordering issue. [EN-15:03] 31 3220150127: p5 FreeBSD-SA-15:02.kmem 33 FreeBSD-SA-15:03.sctp 34 35 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 36 vulnerability. [SA-15:02] 37 38 Fix SCTP stream reset vulnerability. [SA-15:03] 39 4020150114: p4 FreeBSD-SA-15:01.openssl 41 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 42 4320141223: p3 FreeBSD-SA-14:31.ntp 44 FreeBSD-EN-14:13.freebsd-update 45 46 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 47 Fix directory deletion issue in freebsd-update. [EN-14:13] 48 4920141217: p2 FreeBSD-SA-14:30.unbound 50 Fix unbound remote denial of service vulnerability. 51 5220141210: p1 FreeBSD-SA-14:27.stdio 53 FreeBSD-SA-14:28.file 54 55 Fix buffer overflow in stdio. [SA-14:27] 56 57 Fix multiple vulnerabilities in file(1) and libmagic(3). 58 [SA-14:28] 59 6020140904: 61 The ofwfb driver, used to provide a graphics console on PowerPC when 62 using vt(4), no longer allows mmap() of all of physical memory. This 63 will prevent Xorg on PowerPC with some ATI graphics cards from 64 initializing properly unless x11-servers/xorg-server is updated to 65 1.12.4_8 or newer. 66 6720140831: 68 The libatf-c and libatf-c++ major versions were downgraded to 0 and 69 1 respectively to match the upstream numbers. They were out of 70 sync because, when they were originally added to FreeBSD, the 71 upstream versions were not respected. These libraries are private 72 and not yet built by default, so renumbering them should be a 73 non-issue. However, unclean source trees will yield broken test 74 programs once the operator executes "make delete-old-libs" after a 75 "make installworld". 76 77 Additionally, the atf-sh binary was made private by moving it into 78 /usr/libexec/. Already-built shell test programs will keep the 79 path to the old binary so they will break after "make delete-old" 80 is run. 81 82 If you are using WITH_TESTS=yes (not the default), wipe the object 83 tree and rebuild from scratch to prevent spurious test failures. 84 This is only needed once: the misnumbered libraries and misplaced 85 binaries have been added to OptionalObsoleteFiles.inc so they will 86 be removed during a clean upgrade. 87 8820140814: 89 The ixgbe tunables now match their sysctl counterparts, for example: 90 hw.ixgbe.enable_aim => hw.ix.enable_aim 91 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 92 9320140801: 94 The NFSv4.1 server committed by r269398 changes the internal 95 function call interfaces used between the NFS and krpc modules. 96 As such, __FreeBSD_version was bumped. 97 9820140729: 99 The default unbound configuration has been modified to address 100 issues with reverse lookups on networks that use private 101 address ranges. If you use the local_unbound service, run 102 "service local_unbound setup" as root to regenerate your 103 configuration, then "service local_unbound reload" to load the 104 new configuration. 105 10620140717: 107 It is no longer necessary to include the dwarf version in your DEBUG 108 options in your kernel config file. The bug that required it to be 109 placed in the config file has bene fixed. DEBUG should now just 110 contain -g. The build system will automatically update things 111 to do the right thing. 112 11320140715: 114 Several ABI breaking changes were merged to CTL and new iSCSI code. 115 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 116 iscsictl need to be rebuilt to work with a new kernel. 117 11820140708: 119 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 120 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 121 which differs from the behaviour controlled by this knob.) 122 12320140608: 124 On i386 and amd64 systems, the onifconsole flag is now set by default 125 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 126 as a login TTY if it is set in the bootloader as an active kernel 127 console. No changes in behavior should result otherwise. To revert to 128 the previous behavior, set ttyu0 to "off" in /etc/ttys. 129 13020140512: 131 Clang and llvm have been upgraded to 3.4.1 release. 132 13320140321: 134 Clang and llvm have been upgraded to 3.4 release. 135 13620140306: 137 If a Makefile in a tests/ directory was auto-generating a Kyuafile 138 instead of providing an explicit one, this would prevent such 139 Makefile from providing its own Kyuafile in the future during 140 NO_CLEAN builds. This has been fixed in the Makefiles but manual 141 intervention is needed to clean an objdir if you use NO_CLEAN: 142 # find /usr/obj -name Kyuafile | xargs rm -f 143 14420140303: 145 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 146 capability mode support. Please note that enabling the feature in 147 kernel is still highly recommended. 148 14920140227: 150 OpenSSH is now built with sandbox support, and will use sandbox as 151 the default privilege separation method. This requires Capsicum 152 capability mode support in kernel. 153 15420140216: 155 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 156 been deprecated and will not be part of FreeBSD 11.0 and later 157 releases. If you use this driver, please consider switching to 158 the nfe(4) driver instead. 159 16020140120: 161 10.0-RELEASE. 162 16320131216: 164 The behavior of gss_pseudo_random() for the krb5 mechanism 165 has changed, for applications requesting a longer random string 166 than produced by the underlying enctype's pseudo-random() function. 167 In particular, the random string produced from a session key of 168 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 169 be different at the 17th octet and later, after this change. 170 The counter used in the PRF+ construction is now encoded as a 171 big-endian integer in accordance with RFC 4402. 172 __FreeBSD_version is bumped to 1000701. 173 17420131108: 175 The WITHOUT_ATF build knob has been removed and its functionality 176 has been subsumed into the more generic WITHOUT_TESTS. If you were 177 using the former to disable the build of the ATF libraries, you 178 should change your settings to use the latter. 179 18020131031: 181 The default version of mtree is nmtree which is obtained from 182 NetBSD. The output is generally the same, but may vary 183 slightly. If you found you need identical output adding 184 "-F freebsd9" to the command line should do the trick. For the 185 time being, the old mtree is available as fmtree. 186 18720131014: 188 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 189 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 190 1.1.4_8 and verify bsdyml not linked in, before running "make 191 delete-old-libs": 192 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 193 or 194 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 195 19620131010: 197 The rc.d/jail script has been updated to support jail(8) 198 configuration file. The "jail_<jname>_*" rc.conf(5) variables 199 for per-jail configuration are automatically converted to 200 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 201 This is transparently backward compatible. See below about some 202 incompatibilities and rc.conf(5) manual page for more details. 203 204 These variables are now deprecated in favor of jail(8) configuration 205 file. One can use "rc.d/jail config <jname>" command to generate 206 a jail(8) configuration file in /var/run/jail.<jname>.conf without 207 running the jail(8) utility. The default pathname of the 208 configuration file is /etc/jail.conf and can be specified by 209 using $jail_conf or $jail_<jname>_conf variables. 210 211 Please note that jail_devfs_ruleset accepts an integer at 212 this moment. Please consider to rewrite the ruleset name 213 with an integer. 214 21520130930: 216 BIND has been removed from the base system. If all you need 217 is a local resolver, simply enable and start the local_unbound 218 service instead. Otherwise, several versions of BIND are 219 available in the ports tree. The dns/bind99 port is one example. 220 221 With this change, nslookup(1) and dig(1) are no longer in the base 222 system. Users should instead use host(1) and drill(1) which are 223 in the base system. Alternatively, nslookup and dig can 224 be obtained by installing the dns/bind-tools port. 225 22620130916: 227 With the addition of unbound(8), a new unbound user is now 228 required during installworld. "mergemaster -p" can be used to 229 add the user prior to installworld, as documented in the handbook. 230 23120130911: 232 OpenSSH is now built with DNSSEC support, and will by default 233 silently trust signed SSHFP records. This can be controlled with 234 the VerifyHostKeyDNS client configuration setting. DNSSEC support 235 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 236 23720130906: 238 The GNU Compiler Collection and C++ standard library (libstdc++) 239 are no longer built by default on platforms where clang is the system 240 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 241 options in src.conf. 242 24320130905: 244 The PROCDESC kernel option is now part of the GENERIC kernel 245 configuration and is required for the rwhod(8) to work. 246 If you are using custom kernel configuration, you should include 247 'options PROCDESC'. 248 24920130905: 250 The API and ABI related to the Capsicum framework was modified 251 in backward incompatible way. The userland libraries and programs 252 have to be recompiled to work with the new kernel. This includes the 253 following libraries and programs, but the whole buildworld is 254 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 255 kdump, procstat, rwho, rwhod, uniq. 256 25720130903: 258 AES-NI intrinsic support has been added to gcc. The AES-NI module 259 has been updated to use this support. A new gcc is required to build 260 the aesni module on both i386 and amd64. 261 26220130821: 263 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 264 Thus "device padlock_rng" and "device rdrand_rng" should be 265 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 266 26720130813: 268 WITH_ICONV has been split into two feature sets. WITH_ICONV now 269 enables just the iconv* functionality and is now on by default. 270 WITH_LIBICONV_COMPAT enables the libiconv api and link time 271 compatability. Set WITHOUT_ICONV to build the old way. 272 If you have been using WITH_ICONV before, you will very likely 273 need to turn on WITH_LIBICONV_COMPAT. 274 27520130806: 276 INVARIANTS option now enables DEBUG for code with OpenSolaris and 277 Illumos origin, including ZFS. If you have INVARIANTS in your 278 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 279 explicitly. 280 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 281 locks if WITNESS option was set. Because that generated a lot of 282 witness(9) reports and all of them were believed to be false 283 positives, this is no longer done. New option OPENSOLARIS_WITNESS 284 can be used to achieve the previous behavior. 285 28620130806: 287 Timer values in IPv6 data structures now use time_uptime instead 288 of time_second. Although this is not a user-visible functional 289 change, userland utilities which directly use them---ndp(8), 290 rtadvd(8), and rtsold(8) in the base system---need to be updated 291 to r253970 or later. 292 29320130802: 294 find -delete can now delete the pathnames given as arguments, 295 instead of only files found below them or if the pathname did 296 not contain any slashes. Formerly, the following error message 297 would result: 298 299 find: -delete: <path>: relative path potentially not safe 300 301 Deleting the pathnames given as arguments can be prevented 302 without error messages using -mindepth 1 or by changing 303 directory and passing "." as argument to find. This works in the 304 old as well as the new version of find. 305 30620130726: 307 Behavior of devfs rules path matching has been changed. 308 Pattern is now always matched against fully qualified devfs 309 path and slash characters must be explicitly matched by 310 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 311 subdirectories must be reviewed. 312 31320130716: 314 The default ARM ABI has changed to the ARM EABI. The old ABI is 315 incompatible with the ARM EABI and all programs and modules will 316 need to be rebuilt to work with a new kernel. 317 318 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 319 320 NOTE: Support for the old ABI will be removed in the future and 321 users are advised to upgrade. 322 32320130709: 324 pkg_install has been disconnected from the build if you really need it 325 you should add WITH_PKGTOOLS in your src.conf(5). 326 32720130709: 328 Most of network statistics structures were changed to be able 329 keep 64-bits counters. Thus all tools, that work with networking 330 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 331 33220130629: 333 Fix targets that run multiple make's to use && rather than ; 334 so that subsequent steps depend on success of previous. 335 336 NOTE: if building 'universe' with -j* on stable/8 or stable/9 337 it would be better to start the build using bmake, to avoid 338 overloading the machine. 339 34020130618: 341 Fix a bug that allowed a tracing process (e.g. gdb) to write 342 to a memory-mapped file in the traced process's address space 343 even if neither the traced process nor the tracing process had 344 write access to that file. 345 34620130615: 347 CVS has been removed from the base system. An exact copy 348 of the code is available from the devel/cvs port. 349 35020130613: 351 Some people report the following error after the switch to bmake: 352 353 make: illegal option -- J 354 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 355 ... 356 *** [buildworld] Error code 2 357 358 this likely due to an old instance of make in 359 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 360 which src/Makefile will use that blindly, if it exists, so if 361 you see the above error: 362 363 rm -rf `make -V MAKEPATH` 364 365 should resolve it. 366 36720130516: 368 Use bmake by default. 369 Whereas before one could choose to build with bmake via 370 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 371 make. The goal is to remove these knobs for 10-RELEASE. 372 373 It is worth noting that bmake (like gmake) treats the command 374 line as the unit of failure, rather than statements within the 375 command line. Thus '(cd some/where && dosomething)' is safer 376 than 'cd some/where; dosomething'. The '()' allows consistent 377 behavior in parallel build. 378 37920130429: 380 Fix a bug that allows NFS clients to issue READDIR on files. 381 38220130426: 383 The WITHOUT_IDEA option has been removed because 384 the IDEA patent expired. 385 38620130426: 387 The sysctl which controls TRIM support under ZFS has been renamed 388 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 389 enabled by default. 390 39120130425: 392 The mergemaster command now uses the default MAKEOBJDIRPREFIX 393 rather than creating it's own in the temporary directory in 394 order allow access to bootstrapped versions of tools such as 395 install and mtree. When upgrading from version of FreeBSD where 396 the install command does not support -l, you will need to 397 install a new mergemaster command if mergemaster -p is required. 398 This can be accomplished with the command (cd src/usr.sbin/mergemaster 399 && make install). 400 40120130404: 402 Legacy ATA stack, disabled and replaced by new CAM-based one since 403 FreeBSD 9.0, completely removed from the sources. Kernel modules 404 atadisk and atapi*, user-level tools atacontrol and burncd are 405 removed. Kernel option `options ATA_CAM` is now permanently enabled 406 and removed. 407 40820130319: 409 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 410 and socketpair(2). Software, in particular Kerberos, may 411 automatically detect and use these during building. The resulting 412 binaries will not work on older kernels. 413 41420130308: 415 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 416 information, see the respective 20130304 entry). 417 41820130304: 419 Recent commits to callout(9) changed the size of struct callout, 420 so the KBI is probably heavily disturbed. Also, some functions 421 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 422 by macros. Every kernel module using it won't load, so rebuild 423 is requested. 424 425 The ctl device has been re-enabled in GENERIC for i386 and amd64, 426 but does not initialize by default (because of the new CTL_DISABLE 427 option) to save memory. To re-enable it, remove the CTL_DISABLE 428 option from the kernel config file or set kern.cam.ctl.disable=0 429 in /boot/loader.conf. 430 43120130301: 432 The ctl device has been disabled in GENERIC for i386 and amd64. 433 This was done due to the extra memory being allocated at system 434 initialisation time by the ctl driver which was only used if 435 a CAM target device was created. This makes a FreeBSD system 436 unusable on 128MB or less of RAM. 437 43820130208: 439 A new compression method (lz4) has been merged to -HEAD. Please 440 refer to zpool-features(7) for more information. 441 442 Please refer to the "ZFS notes" section of this file for information 443 on upgrading boot ZFS pools. 444 44520130129: 446 A BSD-licensed patch(1) variant has been added and is installed 447 as bsdpatch, being the GNU version the default patch. 448 To inverse the logic and use the BSD-licensed one as default, 449 while having the GNU version installed as gnupatch, rebuild 450 and install world with the WITH_BSD_PATCH knob set. 451 45220130121: 453 Due to the use of the new -l option to install(1) during build 454 and install, you must take care not to directly set the INSTALL 455 make variable in your /etc/make.conf, /etc/src.conf, or on the 456 command line. If you wish to use the -C flag for all installs 457 you may be able to add INSTALL+=-C to /etc/make.conf or 458 /etc/src.conf. 459 46020130118: 461 The install(1) option -M has changed meaning and now takes an 462 argument that is a file or path to append logs to. In the 463 unlikely event that -M was the last option on the command line 464 and the command line contained at least two files and a target 465 directory the first file will have logs appended to it. The -M 466 option served little practical purpose in the last decade so its 467 use is expected to be extremely rare. 468 46920121223: 470 After switching to Clang as the default compiler some users of ZFS 471 on i386 systems started to experience stack overflow kernel panics. 472 Please consider using 'options KSTACK_PAGES=4' in such configurations. 473 47420121222: 475 GEOM_LABEL now mangles label names read from file system metadata. 476 Mangling affect labels containing spaces, non-printable characters, 477 '%' or '"'. Device names in /etc/fstab and other places may need to 478 be updated. 479 48020121217: 481 By default, only the 10 most recent kernel dumps will be saved. To 482 restore the previous behaviour (no limit on the number of kernel dumps 483 stored in the dump directory) add the following line to /etc/rc.conf: 484 485 savecore_flags="" 486 48720121201: 488 With the addition of auditdistd(8), a new auditdistd user is now 489 required during installworld. "mergemaster -p" can be used to 490 add the user prior to installworld, as documented in the handbook. 491 49220121117: 493 The sin6_scope_id member variable in struct sockaddr_in6 is now 494 filled by the kernel before passing the structure to the userland via 495 sysctl or routing socket. This means the KAME-specific embedded scope 496 id in sin6_addr.s6_addr[2] is always cleared in userland application. 497 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 498 __FreeBSD_version is bumped to 1000025. 499 50020121105: 501 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 502 This means that the world and kernel will be compiled with clang 503 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 504 and /usr/bin/cpp. To disable this behavior and revert to building 505 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 506 of current may need to bootstrap WITHOUT_CLANG first if the clang 507 build fails (its compatibility window doesn't extend to the 9 stable 508 branch point). 509 51020121102: 511 The IPFIREWALL_FORWARD kernel option has been removed. Its 512 functionality now turned on by default. 513 51420121023: 515 The ZERO_COPY_SOCKET kernel option has been removed and 516 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 517 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 518 mechanism which is not safe and may result in kernel crashes. 519 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 520 driver supports disposeable external page sized mbuf storage. 521 Proper replacements for both zero-copy mechanisms are under 522 consideration and will eventually lead to complete removal 523 of the two kernel options. 524 52520121023: 526 The IPv4 network stack has been converted to network byte 527 order. The following modules need to be recompiled together 528 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 529 pf(4), ipfw(4), ng_ipfw(4), stf(4). 530 53120121022: 532 Support for non-MPSAFE filesystems was removed from VFS. The 533 VFS_VERSION was bumped, all filesystem modules shall be 534 recompiled. 535 53620121018: 537 All the non-MPSAFE filesystems have been disconnected from 538 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 539 portalfs, smbfs, xfs. 540 54120121016: 542 The interface cloning API and ABI has changed. The following 543 modules need to be recompiled together with kernel: 544 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 545 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 546 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 547 54820121015: 549 The sdhci driver was split in two parts: sdhci (generic SD Host 550 Controller logic) and sdhci_pci (actual hardware driver). 551 No kernel config modifications are required, but if you 552 load sdhc as a module you must switch to sdhci_pci instead. 553 55420121014: 555 Import the FUSE kernel and userland support into base system. 556 55720121013: 558 The GNU sort(1) program has been removed since the BSD-licensed 559 sort(1) has been the default for quite some time and no serious 560 problems have been reported. The corresponding WITH_GNU_SORT 561 knob has also gone. 562 56320121006: 564 The pfil(9) API/ABI for AF_INET family has been changed. Packet 565 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 566 with new kernel. 567 56820121001: 569 The net80211(4) ABI has been changed to allow for improved driver 570 PS-POLL and power-save support. All wireless drivers need to be 571 recompiled to work with the new kernel. 572 57320120913: 574 The random(4) support for the VIA hardware random number 575 generator (`PADLOCK') is no longer enabled unconditionally. 576 Add the padlock_rng device in the custom kernel config if 577 needed. The GENERIC kernels on i386 and amd64 do include the 578 device, so the change only affects the custom kernel 579 configurations. 580 58120120908: 582 The pf(4) packet filter ABI has been changed. pfctl(8) and 583 snmp_pf module need to be recompiled to work with new kernel. 584 58520120828: 586 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 587 to -HEAD. Pools that have empty_bpobj in active state can not be 588 imported read-write with ZFS implementations that do not support 589 this feature. For more information read the zpool-features(5) 590 manual page. 591 59220120727: 593 The sparc64 ZFS loader has been changed to no longer try to auto- 594 detect ZFS providers based on diskN aliases but now requires these 595 to be explicitly listed in the OFW boot-device environment variable. 596 59720120712: 598 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 599 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 600 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 601 60220120712: 603 The following sysctls and tunables have been renamed for consistency 604 with other variables: 605 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 606 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 607 60820120628: 609 The sort utility has been replaced with BSD sort. For now, GNU sort 610 is also available as "gnusort" or the default can be set back to 611 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 612 installed as "bsdsort". 613 61420120611: 615 A new version of ZFS (pool version 5000) has been merged to -HEAD. 616 Starting with this version the old system of ZFS pool versioning 617 is superseded by "feature flags". This concept enables forward 618 compatibility against certain future changes in functionality of ZFS 619 pools. The first read-only compatible "feature flag" for ZFS pools 620 is named "com.delphix:async_destroy". For more information 621 read the new zpool-features(5) manual page. 622 Please refer to the "ZFS notes" section of this file for information 623 on upgrading boot ZFS pools. 624 62520120417: 626 The malloc(3) implementation embedded in libc now uses sources imported 627 as contrib/jemalloc. The most disruptive API change is to 628 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 629 delete it prior to installworld, and optionally re-create it using the 630 new format after rebooting. See malloc.conf(5) for details 631 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 632 NAMESPACE section). 633 63420120328: 635 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 636 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 637 now spelled mips. This is to aid compatibility with third-party 638 software that expects this naming scheme in uname(3). Little-endian 639 settings are unchanged. If you are updating a big-endian mips64 machine 640 from before this change, you may need to set MACHINE_ARCH=mips64 in 641 your environment before the new build system will recognize your machine. 642 64320120306: 644 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 645 platforms. 646 64720120229: 648 Now unix domain sockets behave "as expected" on nullfs(5). Previously 649 nullfs(5) did not pass through all behaviours to the underlying layer, 650 as a result if we bound to a socket on the lower layer we could connect 651 only to the lower path; if we bound to the upper layer we could connect 652 only to the upper path. The new behavior is one can connect to both the 653 lower and the upper paths regardless what layer path one binds to. 654 65520120211: 656 The getifaddrs upgrade path broken with 20111215 has been restored. 657 If you have upgraded in between 20111215 and 20120209 you need to 658 recompile libc again with your kernel. You still need to recompile 659 world to be able to configure CARP but this restriction already 660 comes from 20111215. 661 66220120114: 663 The set_rcvar() function has been removed from /etc/rc.subr. All 664 base and ports rc.d scripts have been updated, so if you have a 665 port installed with a script in /usr/local/etc/rc.d you can either 666 hand-edit the rcvar= line, or reinstall the port. 667 668 An easy way to handle the mass-update of /etc/rc.d: 669 rm /etc/rc.d/* && mergemaster -i 670 67120120109: 672 panic(9) now stops other CPUs in the SMP systems, disables interrupts 673 on the current CPU and prevents other threads from running. 674 This behavior can be reverted using the kern.stop_scheduler_on_panic 675 tunable/sysctl. 676 The new behavior can be incompatible with kern.sync_on_panic. 677 67820111215: 679 The carp(4) facility has been changed significantly. Configuration 680 of the CARP protocol via ifconfig(8) has changed, as well as format 681 of CARP events submitted to devd(8) has changed. See manual pages 682 for more information. The arpbalance feature of carp(4) is currently 683 not supported anymore. 684 685 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 686 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 687 need to be recompiled. 688 68920111122: 690 The acpi_wmi(4) status device /dev/wmistat has been renamed to 691 /dev/wmistat0. 692 69320111108: 694 The option VFS_ALLOW_NONMPSAFE option has been added in order to 695 explicitely support non-MPSAFE filesystems. 696 It is on by default for all supported platform at this present 697 time. 698 69920111101: 700 The broken amd(4) driver has been replaced with esp(4) in the amd64, 701 i386 and pc98 GENERIC kernel configuration files. 702 70320110930: 704 sysinstall has been removed 705 70620110923: 707 The stable/9 branch created in subversion. This corresponds to the 708 RELENG_9 branch in CVS. 709 71020110913: 711 This commit modifies vfs_register() so that it uses a hash 712 calculation to set vfc_typenum, which is enabled by default. 713 The first time a system is booted after this change, the 714 vfc_typenum values will change for all file systems. The 715 main effect of this is a change to the NFS server file handles 716 for file systems that use vfc_typenum in their fsid, such as ZFS. 717 It will, however, prevent vfc_typenum from changing when file 718 systems are loaded in a different order for subsequent reboots. 719 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 720 until you are ready to remount all NFS clients after a reboot. 721 72220110828: 723 Bump the shared library version numbers for libraries that 724 do not use symbol versioning, have changed the ABI compared 725 to stable/8 and which shared library version was not bumped. 726 Done as part of 9.0-RELEASE cycle. 727 72820110815: 729 During the merge of Capsicum features, the fget(9) KPI was modified. 730 This may require the rebuilding of out-of-tree device drivers -- 731 issues have been reported specifically with the nVidia device driver. 732 __FreeBSD_version is bumped to 900041. 733 734 Also, there is a period between 20110811 and 20110814 where the 735 special devices /dev/{stdin,stdout,stderr} did not work correctly. 736 Building world from a kernel during that window may not work. 737 73820110628: 739 The packet filter (pf) code has been updated to OpenBSD 4.5. 740 You need to update userland tools to be in sync with kernel. 741 This update breaks backward compatibility with earlier pfsync(4) 742 versions. Care must be taken when updating redundant firewall setups. 743 74420110608: 745 The following sysctls and tunables are retired on x86 platforms: 746 machdep.hlt_cpus 747 machdep.hlt_logical_cpus 748 The following sysctl is retired: 749 machdep.hyperthreading_allowed 750 The sysctls were supposed to provide a way to dynamically offline and 751 online selected CPUs on x86 platforms, but the implementation has not 752 been reliable especially with SCHED_ULE scheduler. 753 machdep.hyperthreading_allowed tunable is still available to ignore 754 hyperthreading CPUs at OS level. 755 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 756 where X is an APIC ID of a CPU. Be advised, though, that disabling 757 CPUs in non-uniform fashion will result in non-uniform topology and 758 may lead to sub-optimal system performance with SCHED_ULE, which is 759 a default scheduler. 760 76120110607: 762 cpumask_t type is retired and cpuset_t is used in order to describe 763 a mask of CPUs. 764 76520110531: 766 Changes to ifconfig(8) for dynamic address family detection mandate 767 that you are running a kernel of 20110525 or later. Make sure to 768 follow the update procedure to boot a new kernel before installing 769 world. 770 77120110513: 772 Support for sun4v architecture is officially dropped 773 77420110503: 775 Several KPI breaking changes have been committed to the mii(4) layer, 776 the PHY drivers and consequently some Ethernet drivers using mii(4). 777 This means that miibus.ko and the modules of the affected Ethernet 778 drivers need to be recompiled. 779 780 Note to kernel developers: Given that the OUI bit reversion problem 781 was fixed as part of these changes all mii(4) commits related to OUIs, 782 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 783 handling, no longer can be merged verbatim to stable/8 and previous 784 branches. 785 78620110430: 787 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 788 into their kernel configurations along with 'device pci'. 789 79020110427: 791 The default NFS client is now the new NFS client, so fstype "newnfs" 792 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 793 Although mounts via fstype "nfs" will usually work without userland 794 changes, it is recommended that the mount(8) and mount_nfs(8) 795 commands be rebuilt from sources and that a link to mount_nfs called 796 mount_oldnfs be created. The new client is compiled into the 797 kernel with "options NFSCL" and this is needed for diskless root 798 file systems. The GENERIC kernel configs have been changed to use 799 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 800 To use the regular/old client, you can "mount -t oldnfs ...". For 801 a diskless root file system, you must also include a line like: 802 803 vfs.root.mountfrom="oldnfs:" 804 805 in the boot/loader.conf on the root fs on the NFS server to make 806 a diskless root fs use the old client. 807 80820110424: 809 The GENERIC kernels for all architectures now default to the new 810 CAM-based ATA stack. It means that all legacy ATA drivers were 811 removed and replaced by respective CAM drivers. If you are using 812 ATA device names in /etc/fstab or other places, make sure to update 813 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 814 where 'Y's are the sequential numbers starting from zero for each type 815 in order of detection, unless configured otherwise with tunables, 816 see cam(4)). There will be symbolic links created in /dev/ to map 817 old adX devices to the respective adaY. They should provide basic 818 compatibility for file systems mounting in most cases, but they do 819 not support old user-level APIs and do not have respective providers 820 in GEOM. Consider using updated management tools with new device names. 821 822 It is possible to load devices ahci, ata, siis and mvs as modules, 823 but option ATA_CAM should remain in kernel configuration to make ata 824 module work as CAM driver supporting legacy ATA controllers. Device ata 825 still can be used in modular fashion (atacore + ...). Modules atadisk 826 and atapi* are not used and won't affect operation in ATA_CAM mode. 827 Note that to use CAM-based ATA kernel should include CAM devices 828 scbus, pass, da (or explicitly ada), cd and optionally others. All of 829 them are parts of the cam module. 830 831 ataraid(4) functionality is now supported by the RAID GEOM class. 832 To use it you can load geom_raid kernel module and use graid(8) tool 833 for management. Instead of /dev/arX device names, use /dev/raid/rX. 834 835 No kernel config options or code have been removed, so if a problem 836 arises, please report it and optionally revert to the old ATA stack. 837 In order to do it you can remove from the kernel config: 838 options ATA_CAM 839 device ahci 840 device mvs 841 device siis 842 , and instead add back: 843 device atadisk # ATA disk drives 844 device ataraid # ATA RAID drives 845 device atapicd # ATAPI CDROM drives 846 device atapifd # ATAPI floppy drives 847 device atapist # ATAPI tape drives 848 84920110423: 850 The default NFS server has been changed to the new server, which 851 was referred to as the experimental server. If you need to switch 852 back to the old NFS server, you must now put the "-o" option on 853 both the mountd and nfsd commands. This can be done using the 854 mountd_flags and nfs_server_flags rc.conf variables until an 855 update to the rc scripts is committed, which is coming soon. 856 85720110418: 858 The GNU Objective-C runtime library (libobjc), and other Objective-C 859 related components have been removed from the base system. If you 860 require an Objective-C library, please use one of the available ports. 861 86220110331: 863 ath(4) has been split into bus- and device- modules. if_ath contains 864 the HAL, the TX rate control and the network device code. if_ath_pci 865 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 866 contains the AHB glue. Users need to load both if_ath_pci and if_ath 867 in order to use ath on everything else. 868 869 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 870 need to load if_ath and if_ath_pci for ath(4) operation. 871 87220110314: 873 As part of the replacement of sysinstall, the process of building 874 release media has changed significantly. For details, please re-read 875 release(7), which has been updated to reflect the new build process. 876 87720110218: 878 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 879 is the last available version under GPLv2. It brings a number of new 880 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 881 4.1 and SSE 4.2), better support for powerpc64, a number of new 882 directives, and lots of other small improvements. See the ChangeLog 883 file in contrib/binutils for the full details. 884 88520110218: 886 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 887 compliant, and will now use half of hash for authentication. 888 This will break interoperability with all stacks (including all 889 actual FreeBSD versions) who implement 890 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 891 authentication). 892 The only workaround with such peers is to use another HMAC 893 algorithm for IPsec ("phase 2") authentication. 894 89520110207: 896 Remove the uio_yield prototype and symbol. This function has 897 been misnamed since it was introduced and should not be 898 globally exposed with this name. The equivalent functionality 899 is now available using kern_yield(curthread->td_user_pri). 900 The function remains undocumented. 901 90220110112: 903 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 904 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 905 for scalar sysctls is defined but disabled. Code that needs 906 UQUAD to pass the type checking that must compile on older 907 systems where the define is not present can check against 908 __FreeBSD_version >= 900030. 909 910 The system dialog(1) has been replaced with a new version previously 911 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 912 with the previous version, but the libdialog associated with it has 913 a largely incompatible API. As such, the original version of libdialog 914 will be kept temporarily as libodialog, until its base system consumers 915 are replaced or updated. Bump __FreeBSD_version to 900030. 916 91720110103: 918 If you are trying to run make universe on a -stable system, and you get 919 the following warning: 920 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 921 unknown. config(8) likely too old." 922 or something similar to it, then you must upgrade your -stable system 923 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 924 stable/8) or build the config from the latest stable/8 branch and 925 install it on your system. 926 927 Prior to this date, building a current universe on 8-stable system from 928 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 929 error in the first kernel build phase. A new config on those old 930 systems will fix that problem for older versions of -current. 931 93220101228: 933 The TCP stack has been modified to allow Khelp modules to interact with 934 it via helper hook points and store per-connection data in the TCP 935 control block. Bump __FreeBSD_version to 900029. User space tools that 936 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 937 be recompiled. 938 93920101114: 940 Generic IEEE 802.3 annex 31B full duplex flow control support has been 941 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 942 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 943 to take advantage of it instead of using custom implementations. This 944 means that these drivers now no longer unconditionally advertise 945 support for flow control but only do so if flow control is a selected 946 media option. This was implemented in the generic support that way in 947 order to allow flow control to be switched on and off via ifconfig(8) 948 with the PHY specific default to typically off in order to protect 949 from unwanted effects. Consequently, if you used flow control with 950 one of the above mentioned drivers you now need to explicitly enable 951 it, for example via: 952 ifconfig bge0 media auto mediaopt flowcontrol 953 954 Along with the above mentioned changes generic support for setting 955 1000baseT master mode also has been added and brgphy(4), ciphy(4), 956 e1000phy(4) as well as ip1000phy(4) have been converted to take 957 advantage of it. This means that these drivers now no longer take the 958 link0 parameter for selecting master mode but the master media option 959 has to be used instead, for example like in the following: 960 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 961 962 Selection of master mode now is also available with all other PHY 963 drivers supporting 1000baseT. 964 96520101111: 966 The TCP stack has received a significant update to add support for 967 modularised congestion control and generally improve the clarity of 968 congestion control decisions. Bump __FreeBSD_version to 900025. User 969 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 970 sockstat) need to be recompiled. 971 97220101002: 973 The man(1) utility has been replaced by a new version that no longer 974 uses /etc/manpath.config. Please consult man.conf(5) for how to 975 migrate local entries to the new format. 976 97720100928: 978 The copyright strings printed by login(1) and sshd(8) at the time of a 979 new connection have been removed to follow other operating systems and 980 upstream sshd. 981 98220100915: 983 A workaround for a fixed ld bug has been removed in kernel code, 984 so make sure that your system ld is built from sources after 985 revision 210245 from 2010-07-19 (r211583 if building head kernel 986 on stable/8, r211584 for stable/7; both from 2010-08-21). 987 A symptom of incorrect ld version is different addresses for 988 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 989 99020100913: 991 The $ipv6_prefer variable in rc.conf(5) has been split into 992 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 993 994 The $ip6addrctl_policy is a variable to choose a pre-defined 995 address selection policy set by ip6addrctl(8). A value 996 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 997 default is "AUTO". 998 999 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1000 flag (see an entry of 20090926) is set on an interface with no 1001 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1002 security reason. If you want IPv6 link-local address on all 1003 interfaces by default, set this to "YES". 1004 1005 The old ipv6_prefer="YES" is equivalent to 1006 ipv6_activate_all_interfaces="YES" and 1007 ip6addrctl_policy="ipv6_prefer". 1008 100920100913: 1010 DTrace has grown support for userland tracing. Due to this, DTrace is 1011 now i386 and amd64 only. 1012 dtruss(1) is now installed by default on those systems and a new 1013 kernel module is needed for userland tracing: fasttrap. 1014 No changes to your kernel config file are necessary to enable 1015 userland tracing, but you might consider adding 'STRIP=' and 1016 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1017 to have informative userland stack traces in DTrace (ustack). 1018 101920100725: 1020 The acpi_aiboost(4) driver has been removed in favor of the new 1021 aibs(4) driver. You should update your kernel configuration file. 1022 102320100722: 1024 BSD grep has been imported to the base system and it is built by 1025 default. It is completely BSD licensed, highly GNU-compatible, uses 1026 less memory than its GNU counterpart and has a small codebase. 1027 However, it is slower than its GNU counterpart, which is mostly 1028 noticeable for larger searches, for smaller ones it is measurable 1029 but not significant. The reason is complex, the most important factor 1030 is that we lack a modern and efficient regex library and GNU 1031 overcomes this by optimizing the searches internally. Future work 1032 on improving the regex performance is planned, for the meantime, 1033 users that need better performance, can build GNU grep instead by 1034 setting the WITH_GNU_GREP knob. 1035 103620100713: 1037 Due to the import of powerpc64 support, all existing powerpc kernel 1038 configuration files must be updated with a machine directive like this: 1039 machine powerpc powerpc 1040 1041 In addition, an updated config(8) is required to build powerpc kernels 1042 after this change. 1043 104420100713: 1045 A new version of ZFS (version 15) has been merged to -HEAD. 1046 This version uses a python library for the following subcommands: 1047 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1048 For full functionality of these commands the following port must 1049 be installed: sysutils/py-zfs 1050 105120100429: 1052 'vm_page's are now hashed by physical address to an array of mutexes. 1053 Currently this is only used to serialize access to hold_count. Over 1054 time the page queue mutex will be peeled away. This changes the size 1055 of pmap on every architecture. And requires all callers of vm_page_hold 1056 and vm_page_unhold to be updated. 1057 105820100402: 1059 WITH_CTF can now be specified in src.conf (not recommended, there 1060 are some problems with static executables), make.conf (would also 1061 affect ports which do not use GNU make and do not override the 1062 compile targets) or in the kernel config (via "makeoptions 1063 WITH_CTF=yes"). 1064 When WITH_CTF was specified there before this was silently ignored, 1065 so make sure that WITH_CTF is not used in places which could lead 1066 to unwanted behavior. 1067 106820100311: 1069 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1070 to allow 32-bit compatibility on non-x86 platforms. All kernel 1071 configurations on amd64 and ia64 platforms using these options must 1072 be modified accordingly. 1073 107420100113: 1075 The utmp user accounting database has been replaced with utmpx, 1076 the user accounting interface standardized by POSIX. 1077 Unfortunately the semantics of utmp and utmpx don't match, 1078 making it practically impossible to support both interfaces. 1079 The user accounting database is used by tools like finger(1), 1080 last(1), talk(1), w(1) and ac(8). 1081 1082 All applications in the base system use utmpx. This means only 1083 local binaries (e.g. from the ports tree) may still use these 1084 utmp database files. These applications must be rebuilt to make 1085 use of utmpx. 1086 1087 After the system has been upgraded, it is safe to remove the old 1088 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1089 assuming their contents is of no importance anymore. Old wtmp 1090 databases can only be used by last(1) and ac(8) after they have 1091 been converted to the new format using wtmpcvt(1). 1092 109320100108: 1094 Introduce the kernel thread "deadlock resolver" (which can be enabled 1095 via the DEADLKRES option, see NOTES for more details) and the 1096 sleepq_type() function for sleepqueues. 1097 109820091202: 1099 The rc.firewall and rc.firewall6 were unified, and 1100 rc.firewall6 and rc.d/ip6fw were removed. 1101 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1102 variables are obsoleted. Instead, the following new rc 1103 variables are added to rc.d/ipfw: 1104 1105 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1106 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1107 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1108 1109 The meanings correspond to the relevant IPv4 variables. 1110 111120091125: 1112 8.0-RELEASE. 1113 111420091113: 1115 The default terminal emulation for syscons(4) has been changed 1116 from cons25 to xterm on all platforms except pc98. This means 1117 that the /etc/ttys file needs to be updated to ensure correct 1118 operation of applications on the console. 1119 1120 The terminal emulation style can be toggled per window by using 1121 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1122 options can be used to change the compile-time default back to 1123 cons25. 1124 1125 To prevent graphical artifacts, make sure the TERM environment 1126 variable is set to match the terminal emulation that is being 1127 performed by syscons(4). 1128 112920091109: 1130 The layout of the structure ieee80211req_scan_result has changed. 1131 Applications that require wireless scan results (e.g. ifconfig(8)) 1132 from net80211 need to be recompiled. 1133 1134 Applications such as wpa_supplicant(8) may require a full world 1135 build without using NO_CLEAN in order to get synchronized with the 1136 new structure. 1137 113820091025: 1139 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1140 There's one kernel module for each firmware. Adding "device iwnfw" 1141 to the kernel configuration file means including all three firmware 1142 images inside the kernel. If you want to include just the one for 1143 your wireless card, use the devices iwn4965fw, iwn5000fw or 1144 iwn5150fw. 1145 114620090926: 1147 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1148 into rc.d/netif. The changes are the following: 1149 1150 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1151 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1152 Note that both variables need the "inet6" keyword at the head. 1153 1154 Do not set $ipv6_network_interfaces manually if you do not 1155 understand what you are doing. It is not needed in most cases. 1156 1157 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1158 they are obsolete. 1159 1160 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1161 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1162 1163 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1164 all configured interfaces have "inet6 accept_rtadv" in the 1165 $ifconfig_IF_ipv6. These are for backward compatibility. 1166 1167 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1168 functionality of interfaces with no corresponding 1169 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1170 and the default address selection policy of ip6addrctl(8) 1171 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1172 Note that if you want to configure IPv6 functionality on the 1173 disabled interfaces after boot, first you need to clear the flag by 1174 using ifconfig(8) like: 1175 1176 ifconfig em0 inet6 -ifdisabled 1177 1178 If YES, the default address selection policy is set as 1179 IPv6-preferred. 1180 1181 The default value of $ipv6_prefer is NO. 1182 1183 4. If your system need to receive Router Advertisement messages, 1184 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1185 scripts automatically invoke rtsol(8) when the interface becomes 1186 UP. The Router Advertisement messages are used for SLAAC 1187 (State-Less Address AutoConfiguration). 1188 118920090922: 1190 802.11s D3.03 support was committed. This is incompatible with the 1191 previous code, which was based on D3.0. 1192 119320090912: 1194 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1195 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1196 control whether accepting Router Advertisement messages or not. 1197 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1198 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1199 The ifconfig(8) utility now supports these flags. 1200 120120090910: 1202 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1203 mount(8) and -a option for df(1) to see them. 1204 120520090825: 1206 The old tunable hw.bus.devctl_disable has been superseded by 1207 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1208 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1209 is 1000. 1210 121120090813: 1212 Remove the option STOP_NMI. The default action is now to use NMI only 1213 for KDB via the newly introduced function stop_cpus_hard() and 1214 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1215 121620090803: 1217 The stable/8 branch created in subversion. This corresponds to the 1218 RELENG_8 branch in CVS. 1219 122020090719: 1221 Bump the shared library version numbers for all libraries that do not 1222 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1223 __FreeBSD_version to 800105. 1224 122520090714: 1226 Due to changes in the implementation of virtual network stack support, 1227 all network-related kernel modules must be recompiled. As this change 1228 breaks the ABI, bump __FreeBSD_version to 800104. 1229 123020090713: 1231 The TOE interface to the TCP syncache has been modified to remove 1232 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1233 The cxgb driver is the only TOE consumer affected by this change, and 1234 needs to be recompiled along with the kernel. As this change breaks 1235 the ABI, bump __FreeBSD_version to 800103. 1236 123720090712: 1238 Padding has been added to struct tcpcb, sackhint and tcpstat in 1239 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1240 maintaining the ABI. However, this change breaks the ABI, so bump 1241 __FreeBSD_version to 800102. User space tools that rely on the size of 1242 any of these structs (e.g. sockstat) need to be recompiled. 1243 124420090630: 1245 The NFS_LEGACYRPC option has been removed along with the old kernel 1246 RPC implementation that this option selected. Kernel configurations 1247 may need to be adjusted. 1248 124920090629: 1250 The network interface device nodes at /dev/net/<interface> have been 1251 removed. All ioctl operations can be performed the normal way using 1252 routing sockets. The kqueue functionality can generally be replaced 1253 with routing sockets. 1254 125520090628: 1256 The documentation from the FreeBSD Documentation Project (Handbook, 1257 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1258 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1259 126020090624: 1261 The ABI of various structures related to the SYSV IPC API have been 1262 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1263 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1264 800100. 1265 126620090622: 1267 Layout of struct vnet has changed as routing related variables were 1268 moved to their own Vimage module. Modules need to be recompiled. Bump 1269 __FreeBSD_version to 800099. 1270 127120090619: 1272 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1273 respectively. As long as no more than 16 groups per process are used, 1274 no changes should be visible. When more than 16 groups are used, old 1275 binaries may fail if they call getgroups() or getgrouplist() with 1276 statically sized storage. Recompiling will work around this, but 1277 applications should be modified to use dynamically allocated storage 1278 for group arrays as POSIX.1-2008 does not cap an implementation's 1279 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1280 1281 NFS and portalfs mounts may also be affected as the list of groups is 1282 truncated to 16. Users of NFS who use more than 16 groups, should 1283 take care that negative group permissions are not used on the exported 1284 file systems as they will not be reliable unless a GSSAPI based 1285 authentication method is used. 1286 128720090616: 1288 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1289 option compiles in the support for adaptive spinning for lockmgrs 1290 which want to enable it. The lockinit() function now accepts the flag 1291 LK_ADAPTIVE in order to make the lock object subject to adaptive 1292 spinning when both held in write and read mode. 1293 129420090613: 1295 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1296 changed. User applications that use this ioctl need to be rebuilt. 1297 129820090611: 1299 The layout of struct thread has changed. Kernel and modules need to 1300 be rebuilt. 1301 130220090608: 1303 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1304 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1305 130620090602: 1307 window(1) has been removed from the base system. It can now be 1308 installed from ports. The port is called misc/window. 1309 131020090601: 1311 The way we are storing and accessing `routing table' entries has 1312 changed. Programs reading the FIB, like netstat, need to be 1313 re-compiled. 1314 131520090601: 1316 A new netisr implementation has been added for FreeBSD 8. Network 1317 file system modules, such as igmp, ipdivert, and others, should be 1318 rebuilt. 1319 Bump __FreeBSD_version to 800096. 1320 132120090530: 1322 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1323 more valid. 1324 132520090530: 1326 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1327 Bump __FreeBSD_version to 800094. 1328 132920090529: 1330 Add mnt_xflag field to 'struct mount'. File system modules need to be 1331 rebuilt. 1332 Bump __FreeBSD_version to 800093. 1333 133420090528: 1335 The compiling option ADAPTIVE_SX has been retired while it has been 1336 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1337 The KPI for sx_init_flags() changes as accepting flags: 1338 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1339 been introduced in order to handle the reversed logic. 1340 Bump __FreeBSD_version to 800092. 1341 134220090527: 1343 Add support for hierarchical jails. Remove global securelevel. 1344 Bump __FreeBSD_version to 800091. 1345 134620090523: 1347 The layout of struct vnet_net has changed, therefore modules 1348 need to be rebuilt. 1349 Bump __FreeBSD_version to 800090. 1350 135120090523: 1352 The newly imported zic(8) produces a new format in the output. Please 1353 run tzsetup(8) to install the newly created data to /etc/localtime. 1354 135520090520: 1356 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1357 hw.usb.* and is now consistent again with previous releases. 1358 135920090520: 1360 802.11 monitor mode support was revised and driver api's were changed. 1361 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1362 of DLT_IEEE802_11. No user-visible data structures were changed but 1363 applications that use DLT_IEEE802_11 may require changes. 1364 Bump __FreeBSD_version to 800088. 1365 136620090430: 1367 The layout of the following structs has changed: sysctl_oid, 1368 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1369 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1370 panics may be experienced. World rebuild is required for 1371 correctly checking networking state from userland. 1372 Bump __FreeBSD_version to 800085. 1373 137420090429: 1375 MLDv2 and Source-Specific Multicast (SSM) have been merged 1376 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1377 The implementation of SSM within FreeBSD's IPv6 stack closely 1378 follows the IPv4 implementation. 1379 1380 For kernel developers: 1381 1382 * The most important changes are that the ip6_output() and 1383 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1384 and this lock has been downgraded to a non-recursive mutex. 1385 1386 * As with the changes to the IPv4 stack to support SSM, filtering 1387 of inbound multicast traffic must now be performed by transport 1388 protocols within the IPv6 stack. This does not apply to TCP and 1389 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1390 1391 * The KPIs used by IPv6 multicast are similar to those used by 1392 the IPv4 stack, with the following differences: 1393 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1394 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1395 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1396 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1397 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1398 for MLDv1 have an additional 'timer' argument which is used to 1399 jitter the initial membership report for the solicited-node 1400 multicast membership on-link. 1401 * This is not strictly needed for MLDv2, which already jitters 1402 its report transmissions. However, the 'timer' argument is 1403 preserved in case MLDv1 is active on the interface. 1404 1405 * The KAME linked-list based IPv6 membership implementation has 1406 been refactored to use a vector similar to that used by the IPv4 1407 stack. 1408 Code which maintains a list of its own multicast memberships 1409 internally, e.g. carp, has been updated to reflect the new 1410 semantics. 1411 1412 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1413 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1414 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1415 implementation constraint which needs to be addressed in HEAD. 1416 1417 For application developers: 1418 1419 * The changes are broadly similar to those made for the IPv4 1420 stack. 1421 1422 * The use of IPv4 and IPv6 multicast socket options on the same 1423 socket, using mapped addresses, HAS NOT been tested or supported. 1424 1425 * There are a number of issues with the implementation of various 1426 IPv6 multicast APIs which need to be resolved in the API surface 1427 before the implementation is fully compatible with KAME userland 1428 use, and these are mostly to do with interface index treatment. 1429 1430 * The literature available discusses the use of either the delta / ASM 1431 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1432 using setsourcefilter(3)/getsourcefilter(3). For more information 1433 please refer to RFC 3768, 'Socket Interface Extensions for 1434 Multicast Source Filters'. 1435 1436 * Applications which use the published RFC 3678 APIs should be fine. 1437 1438 For systems administrators: 1439 1440 * The mtest(8) utility has been refactored to support IPv6, in 1441 addition to IPv4. Interface addresses are no longer accepted 1442 as arguments, their names must be used instead. The utility 1443 will map the interface name to its first IPv4 address as 1444 returned by getifaddrs(3). 1445 1446 * The ifmcstat(8) utility has also been updated to print the MLDv2 1447 endpoint state and source filter lists via sysctl(3). 1448 1449 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1450 loopback of IPv6 multicast datagrams by default; it defaults to 1 1451 to preserve the existing behaviour. Disabling multicast loopback is 1452 recommended for optimal system performance. 1453 1454 * The IPv6 MROUTING code has been changed to examine this sysctl 1455 instead of attempting to perform a group lookup before looping 1456 back forwarded datagrams. 1457 1458 Bump __FreeBSD_version to 800084. 1459 146020090422: 1461 Implement low-level Bluetooth HCI API. 1462 Bump __FreeBSD_version to 800083. 1463 146420090419: 1465 The layout of struct malloc_type, used by modules to register new 1466 memory allocation types, has changed. Most modules will need to 1467 be rebuilt or panics may be experienced. 1468 Bump __FreeBSD_version to 800081. 1469 147020090415: 1471 Anticipate overflowing inp_flags - add inp_flags2. 1472 This changes most offsets in inpcb, so checking v4 connection 1473 state will require a world rebuild. 1474 Bump __FreeBSD_version to 800080. 1475 147620090415: 1477 Add an llentry to struct route and struct route_in6. Modules 1478 embedding a struct route will need to be recompiled. 1479 Bump __FreeBSD_version to 800079. 1480 148120090414: 1482 The size of rt_metrics_lite and by extension rtentry has changed. 1483 Networking administration apps will need to be recompiled. 1484 The route command now supports show as an alias for get, weighting 1485 of routes, sticky and nostick flags to alter the behavior of stateful 1486 load balancing. 1487 Bump __FreeBSD_version to 800078. 1488 148920090408: 1490 Do not use Giant for kbdmux(4) locking. This is wrong and 1491 apparently causing more problems than it solves. This will 1492 re-open the issue where interrupt handlers may race with 1493 kbdmux(4) in polling mode. Typical symptoms include (but 1494 not limited to) duplicated and/or missing characters when 1495 low level console functions (such as gets) are used while 1496 interrupts are enabled (for example geli password prompt, 1497 mountroot prompt etc.). Disabling kbdmux(4) may help. 1498 149920090407: 1500 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1501 kernel modules referencing any of the above need to be recompiled. 1502 Bump __FreeBSD_version to 800075. 1503 150420090320: 1505 GEOM_PART has become the default partition slicer for storage devices, 1506 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1507 introduces some changes: 1508 1509 MSDOS/EBR: the devices created from MSDOS extended partition entries 1510 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1511 to devices with offset-based names. fstabs may need to be modified. 1512 1513 BSD: the "geometry does not match label" warning is harmless in most 1514 cases but it points to problems in file system misalignment with 1515 disk geometry. The "c" partition is now implicit, covers the whole 1516 top-level drive and cannot be (mis)used by users. 1517 1518 General: Kernel dumps are now not allowed to be written to devices 1519 whose partition types indicate they are meant to be used for file 1520 systems (or, in case of MSDOS partitions, as something else than 1521 the "386BSD" type). 1522 1523 Most of these changes date approximately from 200812. 1524 152520090319: 1526 The uscanner(4) driver has been removed from the kernel. This follows 1527 Linux removing theirs in 2.6 and making libusb the default interface 1528 (supported by sane). 1529 153020090319: 1531 The multicast forwarding code has been cleaned up. netstat(1) 1532 only relies on KVM now for printing bandwidth upcall meters. 1533 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1534 ip6_mroute_mod respectively. The config(5) options for statically 1535 compiling this code remain the same, i.e. 'options MROUTING'. 1536 153720090315: 1538 Support for the IFF_NEEDSGIANT network interface flag has been 1539 removed, which means that non-MPSAFE network device drivers are no 1540 longer supported. In particular, if_ar, if_sr, and network device 1541 drivers from the old (legacy) USB stack can no longer be built or 1542 used. 1543 154420090313: 1545 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1546 a bunch of new language catalog files have also been added. 1547 This means that some common libc messages are now localized and 1548 they depend on the LC_MESSAGES environmental variable. 1549 155020090313: 1551 The k8temp(4) driver has been renamed to amdtemp(4) since 1552 support for Family 10 and Family 11 CPU families was added. 1553 155420090309: 1555 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1556 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1557 1558 For kernel developers, the most important changes are that the 1559 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1560 and this lock has been downgraded to a non-recursive mutex. 1561 1562 Transport protocols (UDP, Raw IP) are now responsible for filtering 1563 inbound multicast traffic according to group membership and source 1564 filters. The imo_multicast_filter() KPI exists for this purpose. 1565 Transports which do not use multicast (SCTP, TCP) already reject 1566 multicast by default. Forwarding and receive performance may improve 1567 as a mutex acquisition is no longer needed in the ip_input() 1568 low-level input path. in_addmulti() and in_delmulti() are shimmed 1569 to new KPIs which exist to support SSM in-kernel. 1570 1571 For application developers, it is recommended that loopback of 1572 multicast datagrams be disabled for best performance, as this 1573 will still cause the lock to be taken for each looped-back 1574 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1575 be tuned to 0 to disable loopback by default; it defaults to 1 1576 to preserve the existing behaviour. 1577 1578 For systems administrators, to obtain best performance with 1579 multicast reception and multiple groups, it is always recommended 1580 that a card with a suitably precise hash filter is used. Hash 1581 collisions will still result in the lock being taken within the 1582 transport protocol input path to check group membership. 1583 1584 If deploying FreeBSD in an environment with IGMP snooping switches, 1585 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1586 enabled; this forces 224.0.0.0/24 group membership to be announced 1587 via IGMP. 1588 1589 The size of 'struct igmpstat' has changed; netstat needs to be 1590 recompiled to reflect this. 1591 Bump __FreeBSD_version to 800070. 1592 159320090309: 1594 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1595 updated to use it. This requires a buildworld/installworld in order to 1596 update the library and dependencies (usbconfig, etc). Its advisable to 1597 rebuild all ports which uses libusb. More specific directions are given 1598 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1599 libusb are no longer required and can be removed. 1600 160120090302: 1602 A workaround is committed to allow the creation of System V shared 1603 memory segment of size > 2 GB on the 64-bit architectures. 1604 Due to a limitation of the existing ABI, the shm_segsz member 1605 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1606 wrong for large segments. Note that limits must be explicitly 1607 raised to allow such segments to be created. 1608 160920090301: 1610 The layout of struct ifnet has changed, requiring a rebuild of all 1611 network device driver modules. 1612 161320090227: 1614 The /dev handling for the new USB stack has changed, a 1615 buildworld/installworld is required for libusb20. 1616 161720090223: 1618 The new USB2 stack has now been permanently moved in and all kernel and 1619 module names reverted to their previous values (eg, usb, ehci, ohci, 1620 ums, ...). The old usb stack can be compiled in by prefixing the name 1621 with the letter 'o', the old usb modules have been removed. 1622 Updating entry 20090216 for xorg and 20090215 for libmap may still 1623 apply. 1624 162520090217: 1626 The rc.conf(5) option if_up_delay has been renamed to 1627 defaultroute_delay to better reflect its purpose. If you have 1628 customized this setting in /etc/rc.conf you need to update it to 1629 use the new name. 1630 163120090216: 1632 xorg 7.4 wants to configure its input devices via hald which does not 1633 yet work with USB2. If the keyboard/mouse does not work in xorg then 1634 add 1635 Option "AllowEmptyInput" "off" 1636 to your ServerLayout section. This will cause X to use the configured 1637 kbd and mouse sections from your xorg.conf. 1638 163920090215: 1640 The GENERIC kernels for all architectures now default to the new USB2 1641 stack. No kernel config options or code have been removed so if a 1642 problem arises please report it and optionally revert to the old USB 1643 stack. If you are loading USB kernel modules or have a custom kernel 1644 that includes GENERIC then ensure that usb names are also changed over, 1645 eg uftdi -> usb2_serial_ftdi. 1646 1647 Older programs linked against the ports libusb 0.1 need to be 1648 redirected to the new stack's libusb20. /etc/libmap.conf can 1649 be used for this: 1650 # Map old usb library to new one for usb2 stack 1651 libusb-0.1.so.8 libusb20.so.1 1652 165320090209: 1654 All USB ethernet devices now attach as interfaces under the name ueN 1655 (eg. ue0). This is to provide a predictable name as vendors often 1656 change usb chipsets in a product without notice. 1657 165820090203: 1659 The ichsmb(4) driver has been changed to require SMBus slave 1660 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1661 All of the other SMBus controller drivers require left-justified 1662 slave addresses, so this change makes all the drivers provide the 1663 same interface. 1664 166520090201: 1666 INET6 statistics (struct ip6stat) was updated. 1667 netstat(1) needs to be recompiled. 1668 166920090119: 1670 NTFS has been removed from GENERIC kernel on amd64 to match 1671 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1672 will load ntfs.ko module automatically when NTFS support is 1673 actually needed, unless ntfs.ko is not installed or security 1674 level prohibits loading kernel modules. If either is the case, 1675 "options NTFS" has to be added into kernel config. 1676 167720090115: 1678 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1679 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1680 800061. User space tools that rely on the size of struct tcpcb in 1681 tcp_var.h (e.g. sockstat) need to be recompiled. 1682 168320081225: 1684 ng_tty(4) module updated to match the new TTY subsystem. 1685 Due to API change, user-level applications must be updated. 1686 New API support added to mpd5 CVS and expected to be present 1687 in next mpd5.3 release. 1688 168920081219: 1690 With __FreeBSD_version 800060 the makefs tool is part of 1691 the base system (it was a port). 1692 169320081216: 1694 The afdata and ifnet locks have been changed from mutexes to 1695 rwlocks, network modules will need to be re-compiled. 1696 169720081214: 1698 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1699 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1700 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1701 architecture and 40 bytes on 64-bit architecture. The userland 1702 applications "arp" and "ndp" have been updated accordingly. 1703 The output from "netstat -r" shows only routing entries and 1704 none of the L2 information. 1705 170620081130: 1707 __FreeBSD_version 800057 marks the switchover from the 1708 binary ath hal to source code. Users must add the line: 1709 1710 options AH_SUPPORT_AR5416 1711 1712 to their kernel config files when specifying: 1713 1714 device ath_hal 1715 1716 The ath_hal module no longer exists; the code is now compiled 1717 together with the driver in the ath module. It is now 1718 possible to tailor chip support (i.e. reduce the set of chips 1719 and thereby the code size); consult ath_hal(4) for details. 1720 172120081121: 1722 __FreeBSD_version 800054 adds memory barriers to 1723 <machine/atomic.h>, new interfaces to ifnet to facilitate 1724 multiple hardware transmit queues for cards that support 1725 them, and a lock-less ring-buffer implementation to 1726 enable drivers to more efficiently manage queueing of 1727 packets. 1728 172920081117: 1730 A new version of ZFS (version 13) has been merged to -HEAD. 1731 This version has zpool attribute "listsnapshots" off by 1732 default, which means "zfs list" does not show snapshots, 1733 and is the same as Solaris behavior. 1734 173520081028: 1736 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1737 173820081009: 1739 The uhci, ohci, ehci and slhci USB Host controller drivers have 1740 been put into separate modules. If you load the usb module 1741 separately through loader.conf you will need to load the 1742 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1743 controller add the following to loader.conf: 1744 1745 uhci_load="YES" 1746 ehci_load="YES" 1747 174820081009: 1749 The ABI used by the PMC toolset has changed. Please keep 1750 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1751 sync. 1752 175320081009: 1754 atapci kernel module now includes only generic PCI ATA 1755 driver. AHCI driver moved to ataahci kernel module. 1756 All vendor-specific code moved into separate kernel modules: 1757 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1758 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1759 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1760 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1761 176220080820: 1763 The TTY subsystem of the kernel has been replaced by a new 1764 implementation, which provides better scalability and an 1765 improved driver model. Most common drivers have been migrated to 1766 the new TTY subsystem, while others have not. The following 1767 drivers have not yet been ported to the new TTY layer: 1768 1769 PCI/ISA: 1770 cy, digi, rc, rp, sio 1771 1772 USB: 1773 ubser, ucycom 1774 1775 Line disciplines: 1776 ng_h4, ng_tty, ppp, sl, snp 1777 1778 Adding these drivers to your kernel configuration file shall 1779 cause compilation to fail. 1780 178120080818: 1782 ntpd has been upgraded to 4.2.4p5. 1783 178420080801: 1785 OpenSSH has been upgraded to 5.1p1. 1786 1787 For many years, FreeBSD's version of OpenSSH preferred DSA 1788 over RSA for host and user authentication keys. With this 1789 upgrade, we've switched to the vendor's default of RSA over 1790 DSA. This may cause upgraded clients to warn about unknown 1791 host keys even for previously known hosts. Users should 1792 follow the usual procedure for verifying host keys before 1793 accepting the RSA key. 1794 1795 This can be circumvented by setting the "HostKeyAlgorithms" 1796 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1797 command line. 1798 1799 Please note that the sequence of keys offered for 1800 authentication has been changed as well. You may want to 1801 specify IdentityFile in a different order to revert this 1802 behavior. 1803 180420080713: 1805 The sio(4) driver has been removed from the i386 and amd64 1806 kernel configuration files. This means uart(4) is now the 1807 default serial port driver on those platforms as well. 1808 1809 To prevent collisions with the sio(4) driver, the uart(4) driver 1810 uses different names for its device nodes. This means the 1811 onboard serial port will now most likely be called "ttyu0" 1812 instead of "ttyd0". You may need to reconfigure applications to 1813 use the new device names. 1814 1815 When using the serial port as a boot console, be sure to update 1816 /boot/device.hints and /etc/ttys before booting the new kernel. 1817 If you forget to do so, you can still manually specify the hints 1818 at the loader prompt: 1819 1820 set hint.uart.0.at="isa" 1821 set hint.uart.0.port="0x3F8" 1822 set hint.uart.0.flags="0x10" 1823 set hint.uart.0.irq="4" 1824 boot -s 1825 182620080609: 1827 The gpt(8) utility has been removed. Use gpart(8) to partition 1828 disks instead. 1829 183020080603: 1831 The version that Linuxulator emulates was changed from 2.4.2 1832 to 2.6.16. If you experience any problems with Linux binaries 1833 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1834 if it fixes the problem contact emulation mailing list. 1835 183620080525: 1837 ISDN4BSD (I4B) was removed from the src tree. You may need to 1838 update a your kernel configuration and remove relevant entries. 1839 184020080509: 1841 I have checked in code to support multiple routing tables. 1842 See the man pages setfib(1) and setfib(2). 1843 This is a hopefully backwards compatible version, 1844 but to make use of it you need to compile your kernel 1845 with options ROUTETABLES=2 (or more up to 16). 1846 184720080420: 1848 The 802.11 wireless support was redone to enable multi-bss 1849 operation on devices that are capable. The underlying device 1850 is no longer used directly but instead wlanX devices are 1851 cloned with ifconfig. This requires changes to rc.conf files. 1852 For example, change: 1853 ifconfig_ath0="WPA DHCP" 1854 to 1855 wlans_ath0=wlan0 1856 ifconfig_wlan0="WPA DHCP" 1857 see rc.conf(5) for more details. In addition, mergemaster of 1858 /etc/rc.d is highly recommended. Simultaneous update of userland 1859 and kernel wouldn't hurt either. 1860 1861 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1862 modules were merged into the base wlan module. All references 1863 to these modules (e.g. in kernel config files) must be removed. 1864 186520080408: 1866 psm(4) has gained write(2) support in native operation level. 1867 Arbitrary commands can be written to /dev/psm%d and status can 1868 be read back from it. Therefore, an application is responsible 1869 for status validation and error recovery. It is a no-op in 1870 other operation levels. 1871 187220080312: 1873 Support for KSE threading has been removed from the kernel. To 1874 run legacy applications linked against KSE libmap.conf may 1875 be used. The following libmap.conf may be used to ensure 1876 compatibility with any prior release: 1877 1878 libpthread.so.1 libthr.so.1 1879 libpthread.so.2 libthr.so.2 1880 libkse.so.3 libthr.so.3 1881 188220080301: 1883 The layout of struct vmspace has changed. This affects libkvm 1884 and any executables that link against libkvm and use the 1885 kvm_getprocs() function. In particular, but not exclusively, 1886 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1887 The effects are minimal, but it's advisable to upgrade world 1888 nonetheless. 1889 189020080229: 1891 The latest em driver no longer has support in it for the 1892 82575 adapter, this is now moved to the igb driver. The 1893 split was done to make new features that are incompatible 1894 with older hardware easier to do. 1895 189620080220: 1897 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1898 likewise the kernel option is now GEOM_LINUX_LVM. 1899 190020080211: 1901 The default NFS mount mode has changed from UDP to TCP for 1902 increased reliability. If you rely on (insecurely) NFS 1903 mounting across a firewall you may need to update your 1904 firewall rules. 1905 190620080208: 1907 Belatedly note the addition of m_collapse for compacting 1908 mbuf chains. 1909 191020080126: 1911 The fts(3) structures have been changed to use adequate 1912 integer types for their members and so to be able to cope 1913 with huge file trees. The old fts(3) ABI is preserved 1914 through symbol versioning in libc, so third-party binaries 1915 using fts(3) should still work, although they will not take 1916 advantage of the extended types. At the same time, some 1917 third-party software might fail to build after this change 1918 due to unportable assumptions made in its source code about 1919 fts(3) structure members. Such software should be fixed 1920 by its vendor or, in the worst case, in the ports tree. 1921 FreeBSD_version 800015 marks this change for the unlikely 1922 case that a portable fix is impossible. 1923 192420080123: 1925 To upgrade to -current after this date, you must be running 1926 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1927 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1928 192920071128: 1930 The ADAPTIVE_GIANT kernel option has been retired because its 1931 functionality is the default now. 1932 193320071118: 1934 The AT keyboard emulation of sunkbd(4) has been turned on 1935 by default. In order to make the special symbols of the Sun 1936 keyboards driven by sunkbd(4) work under X these now have 1937 to be configured the same way as Sun USB keyboards driven 1938 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1939 1940 Option "XkbLayout" "us" 1941 Option "XkbRules" "xorg" 1942 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1943 194420071024: 1945 It has been decided that it is desirable to provide ABI 1946 backwards compatibility to the FreeBSD 4/5/6 versions of the 1947 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1948 broken with the introduction of PCI domain support (see the 1949 20070930 entry). Unfortunately, this required the ABI of 1950 PCIOCGETCONF to be broken again in order to be able to 1951 provide backwards compatibility to the old version of that 1952 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1953 again. As for prominent ports this affects neither pciutils 1954 nor xorg-server this time, the hal port needs to be rebuilt 1955 however. 1956 195720071020: 1958 The misnamed kthread_create() and friends have been renamed 1959 to kproc_create() etc. Many of the callers already 1960 used kproc_start().. 1961 I will return kthread_create() and friends in a while 1962 with implementations that actually create threads, not procs. 1963 Renaming corresponds with version 800002. 1964 196520071010: 1966 RELENG_7 branched. 1967 1968COMMON ITEMS: 1969 1970 General Notes 1971 ------------- 1972 Avoid using make -j when upgrading. While generally safe, there are 1973 sometimes problems using -j to upgrade. If your upgrade fails with 1974 -j, please try again without -j. From time to time in the past there 1975 have been problems using -j with buildworld and/or installworld. This 1976 is especially true when upgrading between "distant" versions (eg one 1977 that cross a major release boundary or several minor releases, or when 1978 several months have passed on the -current branch). 1979 1980 Sometimes, obscure build problems are the result of environment 1981 poisoning. This can happen because the make utility reads its 1982 environment when searching for values for global variables. To run 1983 your build attempts in an "environmental clean room", prefix all make 1984 commands with 'env -i '. See the env(1) manual page for more details. 1985 1986 When upgrading from one major version to another it is generally best 1987 to upgrade to the latest code in the currently installed branch first, 1988 then do an upgrade to the new branch. This is the best-tested upgrade 1989 path, and has the highest probability of being successful. Please try 1990 this approach before reporting problems with a major version upgrade. 1991 1992 When upgrading a live system, having a root shell around before 1993 installing anything can help undo problems. Not having a root shell 1994 around can lead to problems if pam has changed too much from your 1995 starting point to allow continued authentication after the upgrade. 1996 1997 ZFS notes 1998 --------- 1999 When upgrading the boot ZFS pool to a new version, always follow 2000 these two steps: 2001 2002 1.) recompile and reinstall the ZFS boot loader and boot block 2003 (this is part of "make buildworld" and "make installworld") 2004 2005 2.) update the ZFS boot block on your boot drive 2006 2007 The following example updates the ZFS boot block on the first 2008 partition (freebsd-boot) of a GPT partitioned drive ad0: 2009 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2010 2011 Non-boot pools do not need these updates. 2012 2013 To build a kernel 2014 ----------------- 2015 If you are updating from a prior version of FreeBSD (even one just 2016 a few days old), you should follow this procedure. It is the most 2017 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2018 2019 make kernel-toolchain 2020 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2021 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2022 2023 To test a kernel once 2024 --------------------- 2025 If you just want to boot a kernel once (because you are not sure 2026 if it works, or if you want to boot a known bad kernel to provide 2027 debugging information) run 2028 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2029 nextboot -k testkernel 2030 2031 To just build a kernel when you know that it won't mess you up 2032 -------------------------------------------------------------- 2033 This assumes you are already running a CURRENT system. Replace 2034 ${arch} with the architecture of your machine (e.g. "i386", 2035 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2036 2037 cd src/sys/${arch}/conf 2038 config KERNEL_NAME_HERE 2039 cd ../compile/KERNEL_NAME_HERE 2040 make depend 2041 make 2042 make install 2043 2044 If this fails, go to the "To build a kernel" section. 2045 2046 To rebuild everything and install it on the current system. 2047 ----------------------------------------------------------- 2048 # Note: sometimes if you are running current you gotta do more than 2049 # is listed here if you are upgrading from a really old current. 2050 2051 <make sure you have good level 0 dumps> 2052 make buildworld 2053 make kernel KERNCONF=YOUR_KERNEL_HERE 2054 [1] 2055 <reboot in single user> [3] 2056 mergemaster -p [5] 2057 make installworld 2058 mergemaster -i [4] 2059 make delete-old [6] 2060 <reboot> 2061 2062 To cross-install current onto a separate partition 2063 -------------------------------------------------- 2064 # In this approach we use a separate partition to hold 2065 # current's root, 'usr', and 'var' directories. A partition 2066 # holding "/", "/usr" and "/var" should be about 2GB in 2067 # size. 2068 2069 <make sure you have good level 0 dumps> 2070 <boot into -stable> 2071 make buildworld 2072 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2073 <maybe newfs current's root partition> 2074 <mount current's root partition on directory ${CURRENT_ROOT}> 2075 make installworld DESTDIR=${CURRENT_ROOT} 2076 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2077 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2078 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2079 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2080 <reboot into current> 2081 <do a "native" rebuild/install as described in the previous section> 2082 <maybe install compatibility libraries from ports/misc/compat*> 2083 <reboot> 2084 2085 2086 To upgrade in-place from stable to current 2087 ---------------------------------------------- 2088 <make sure you have good level 0 dumps> 2089 make buildworld [9] 2090 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2091 [1] 2092 <reboot in single user> [3] 2093 mergemaster -p [5] 2094 make installworld 2095 mergemaster -i [4] 2096 make delete-old [6] 2097 <reboot> 2098 2099 Make sure that you've read the UPDATING file to understand the 2100 tweaks to various things you need. At this point in the life 2101 cycle of current, things change often and you are on your own 2102 to cope. The defaults can also change, so please read ALL of 2103 the UPDATING entries. 2104 2105 Also, if you are tracking -current, you must be subscribed to 2106 freebsd-current@freebsd.org. Make sure that before you update 2107 your sources that you have read and understood all the recent 2108 messages there. If in doubt, please track -stable which has 2109 much fewer pitfalls. 2110 2111 [1] If you have third party modules, such as vmware, you 2112 should disable them at this point so they don't crash your 2113 system on reboot. 2114 2115 [3] From the bootblocks, boot -s, and then do 2116 fsck -p 2117 mount -u / 2118 mount -a 2119 cd src 2120 adjkerntz -i # if CMOS is wall time 2121 Also, when doing a major release upgrade, it is required that 2122 you boot into single user mode to do the installworld. 2123 2124 [4] Note: This step is non-optional. Failure to do this step 2125 can result in a significant reduction in the functionality of the 2126 system. Attempting to do it by hand is not recommended and those 2127 that pursue this avenue should read this file carefully, as well 2128 as the archives of freebsd-current and freebsd-hackers mailing lists 2129 for potential gotchas. The -U option is also useful to consider. 2130 See mergemaster(8) for more information. 2131 2132 [5] Usually this step is a noop. However, from time to time 2133 you may need to do this if you get unknown user in the following 2134 step. It never hurts to do it all the time. You may need to 2135 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2136 install) after the buildworld before this step if you last updated 2137 from current before 20130425 or from -stable before 20130430. 2138 2139 [6] This only deletes old files and directories. Old libraries 2140 can be deleted by "make delete-old-libs", but you have to make 2141 sure that no program is using those libraries anymore. 2142 2143 [8] In order to have a kernel that can run the 4.x binaries needed to 2144 do an installworld, you must include the COMPAT_FREEBSD4 option in 2145 your kernel. Failure to do so may leave you with a system that is 2146 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2147 required to run the 5.x binaries on more recent kernels. And so on 2148 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2149 2150 Make sure that you merge any new devices from GENERIC since the 2151 last time you updated your kernel config file. 2152 2153 [9] When checking out sources, you must include the -P flag to have 2154 cvs prune empty directories. 2155 2156 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2157 "?=" instead of the "=" assignment operator, so that buildworld can 2158 override the CPUTYPE if it needs to. 2159 2160 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2161 not on the command line, or in /etc/make.conf. buildworld will 2162 warn if it is improperly defined. 2163FORMAT: 2164 2165This file contains a list, in reverse chronological order, of major 2166breakages in tracking -current. It is not guaranteed to be a complete 2167list of such breakages, and only contains entries since October 10, 2007. 2168If you need to see UPDATING entries from before that date, you will need 2169to fetch an UPDATING file from an older FreeBSD release. 2170 2171Copyright information: 2172 2173Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2174 2175Redistribution, publication, translation and use, with or without 2176modification, in full or in part, in any form or format of this 2177document are permitted without further permission from the author. 2178 2179THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2180IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2181WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2182DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2183INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2184(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2185SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2186HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2187STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2188IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2189POSSIBILITY OF SUCH DAMAGE. 2190 2191Contact Warner Losh if you have any questions about your use of 2192this document. 2193 2194$FreeBSD: releng/10.1/UPDATING 279264 2015-02-25 05:56:16Z delphij $ 2195