UPDATING revision 288385
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 1920150929: p21 FreeBSD-SA-15:24.rpcbind 20 21 Fix rpcbind(8) remote denial of service. [SA-15:24] 22 2320150916: p20 FreeBSD-EN-15:18.pkg 24 25 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 26 2720150825: p19 FreeBSD-SA-15:21.amd64 28 FreeBSD-SA-15:22.openssh 29 FreeBSD-EN-15:14.ixgbe 30 FreeBSD-EN-15:15.pkg 31 32 Fix local privilege escalation in IRET handler. [SA-15:21] 33 34 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 35 36 Disabled ixgbe(4) flow-director support. [EN-15:14] 37 38 Fix insufficient check of unsupported pkg(7) signature methods. 39 [EN-15:15] 40 4120150818: p18 FreeBSD-SA-15:20.expat 42 43 Fix multiple integer overflows in expat (libbsdxml) XML parser. 44 [SA-15:20] 45 4620150805: p17 FreeBSD-SA-15:18.bsdpatch 47 FreeBSD-SA-15:19.routed 48 49 Fix patch(1) shell injection vulnerability via ed(1). 50 [SA-15:18] 51 52 Fix routed remote denial of service vulnerability. [SA-15:19] 53 5420150728: p16 FreeBSD-SA-15:14.bsdpatch 55 FreeBSD-SA-15:15.tcp 56 FreeBSD-SA-15:16.openssh 57 58 Fix patch(1) shell injection vulnerability. [SA-15:14] 59 60 Fix resource exhaustion in TCP reassembly. [SA-15:15] 61 62 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 63 6420150721: p15 FreeBSD-SA-15:13.tcp 65 66 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 67 [SA-15:13] 68 6920150630: p14 FreeBSD-EN-15:08.sendmail [revised] 70 FreeBSD-EN-15:09.xlocale 71 FreeBSD-EN-15:10.iconv 72 73 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 74 75 Fix inconsistency between locale and rune locale states. 76 [EN-15:09] 77 78 Improved iconv(3) UTF-7 support. [EN-15:10] 79 8020150618: p13 FreeBSD-EN-15:08.sendmail 81 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 82 8320150612: p12 FreeBSD-SA-15:10.openssl 84 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 85 8620150609: p11 FreeBSD-EN-15:06.file 87 FreeBSD-EN-15:07.zfs 88 89 Updated base system file(1) to 5.22 to address multiple denial 90 of service issues. [EN-15:06] 91 92 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 93 [EN-15:07] 94 9520150513: p10 FreeBSD-EN-15:04.freebsd-update 96 FreeBSD-EN-15:05.ufs 97 98 Fix bug with freebsd-update(8) that does not ensure the previous 99 upgrade was completed. [EN-15:04] 100 101 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 102 10320150407: p9 FreeBSD-SA-15:04.igmp [revised] 104 FreeBSD-SA-15:07.ntp 105 FreeBSD-SA-15:08.bsdinstall 106 FreeBSD-SA-15:09.ipv6 107 108 Improved patch for SA-15:04.igmp. 109 110 Fix multiple vulnerabilities of ntp. [SA-15:07] 111 112 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 113 114 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 115 11620150320: p8 117 Fix patch for SA-15:06.openssl. 118 11920150319: p7 FreeBSD-SA-15:06.openssl 120 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 121 12220150225: p6 FreeBSD-SA-15:04.igmp 123 FreeBSD-EN-15:01.vt 124 FreeBSD-EN-15:02.openssl 125 FreeBSD-EN-15:03.freebsd-update 126 127 Fix integer overflow in IGMP protocol. [SA-15:04] 128 129 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 130 131 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 132 133 Fix freebsd-update libraries update ordering issue. [EN-15:03] 134 13520150127: p5 FreeBSD-SA-15:02.kmem 136 FreeBSD-SA-15:03.sctp 137 138 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 139 vulnerability. [SA-15:02] 140 141 Fix SCTP stream reset vulnerability. [SA-15:03] 142 14320150114: p4 FreeBSD-SA-15:01.openssl 144 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 145 14620141223: p3 FreeBSD-SA-14:31.ntp 147 FreeBSD-EN-14:13.freebsd-update 148 149 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 150 Fix directory deletion issue in freebsd-update. [EN-14:13] 151 15220141217: p2 FreeBSD-SA-14:30.unbound 153 Fix unbound remote denial of service vulnerability. 154 15520141210: p1 FreeBSD-SA-14:27.stdio 156 FreeBSD-SA-14:28.file 157 158 Fix buffer overflow in stdio. [SA-14:27] 159 160 Fix multiple vulnerabilities in file(1) and libmagic(3). 161 [SA-14:28] 162 16320140904: 164 The ofwfb driver, used to provide a graphics console on PowerPC when 165 using vt(4), no longer allows mmap() of all of physical memory. This 166 will prevent Xorg on PowerPC with some ATI graphics cards from 167 initializing properly unless x11-servers/xorg-server is updated to 168 1.12.4_8 or newer. 169 17020140831: 171 The libatf-c and libatf-c++ major versions were downgraded to 0 and 172 1 respectively to match the upstream numbers. They were out of 173 sync because, when they were originally added to FreeBSD, the 174 upstream versions were not respected. These libraries are private 175 and not yet built by default, so renumbering them should be a 176 non-issue. However, unclean source trees will yield broken test 177 programs once the operator executes "make delete-old-libs" after a 178 "make installworld". 179 180 Additionally, the atf-sh binary was made private by moving it into 181 /usr/libexec/. Already-built shell test programs will keep the 182 path to the old binary so they will break after "make delete-old" 183 is run. 184 185 If you are using WITH_TESTS=yes (not the default), wipe the object 186 tree and rebuild from scratch to prevent spurious test failures. 187 This is only needed once: the misnumbered libraries and misplaced 188 binaries have been added to OptionalObsoleteFiles.inc so they will 189 be removed during a clean upgrade. 190 19120140814: 192 The ixgbe tunables now match their sysctl counterparts, for example: 193 hw.ixgbe.enable_aim => hw.ix.enable_aim 194 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 195 19620140801: 197 The NFSv4.1 server committed by r269398 changes the internal 198 function call interfaces used between the NFS and krpc modules. 199 As such, __FreeBSD_version was bumped. 200 20120140729: 202 The default unbound configuration has been modified to address 203 issues with reverse lookups on networks that use private 204 address ranges. If you use the local_unbound service, run 205 "service local_unbound setup" as root to regenerate your 206 configuration, then "service local_unbound reload" to load the 207 new configuration. 208 20920140717: 210 It is no longer necessary to include the dwarf version in your DEBUG 211 options in your kernel config file. The bug that required it to be 212 placed in the config file has bene fixed. DEBUG should now just 213 contain -g. The build system will automatically update things 214 to do the right thing. 215 21620140715: 217 Several ABI breaking changes were merged to CTL and new iSCSI code. 218 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 219 iscsictl need to be rebuilt to work with a new kernel. 220 22120140708: 222 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 223 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 224 which differs from the behaviour controlled by this knob.) 225 22620140608: 227 On i386 and amd64 systems, the onifconsole flag is now set by default 228 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 229 as a login TTY if it is set in the bootloader as an active kernel 230 console. No changes in behavior should result otherwise. To revert to 231 the previous behavior, set ttyu0 to "off" in /etc/ttys. 232 23320140512: 234 Clang and llvm have been upgraded to 3.4.1 release. 235 23620140321: 237 Clang and llvm have been upgraded to 3.4 release. 238 23920140306: 240 If a Makefile in a tests/ directory was auto-generating a Kyuafile 241 instead of providing an explicit one, this would prevent such 242 Makefile from providing its own Kyuafile in the future during 243 NO_CLEAN builds. This has been fixed in the Makefiles but manual 244 intervention is needed to clean an objdir if you use NO_CLEAN: 245 # find /usr/obj -name Kyuafile | xargs rm -f 246 24720140303: 248 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 249 capability mode support. Please note that enabling the feature in 250 kernel is still highly recommended. 251 25220140227: 253 OpenSSH is now built with sandbox support, and will use sandbox as 254 the default privilege separation method. This requires Capsicum 255 capability mode support in kernel. 256 25720140216: 258 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 259 been deprecated and will not be part of FreeBSD 11.0 and later 260 releases. If you use this driver, please consider switching to 261 the nfe(4) driver instead. 262 26320140120: 264 10.0-RELEASE. 265 26620131216: 267 The behavior of gss_pseudo_random() for the krb5 mechanism 268 has changed, for applications requesting a longer random string 269 than produced by the underlying enctype's pseudo-random() function. 270 In particular, the random string produced from a session key of 271 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 272 be different at the 17th octet and later, after this change. 273 The counter used in the PRF+ construction is now encoded as a 274 big-endian integer in accordance with RFC 4402. 275 __FreeBSD_version is bumped to 1000701. 276 27720131108: 278 The WITHOUT_ATF build knob has been removed and its functionality 279 has been subsumed into the more generic WITHOUT_TESTS. If you were 280 using the former to disable the build of the ATF libraries, you 281 should change your settings to use the latter. 282 28320131031: 284 The default version of mtree is nmtree which is obtained from 285 NetBSD. The output is generally the same, but may vary 286 slightly. If you found you need identical output adding 287 "-F freebsd9" to the command line should do the trick. For the 288 time being, the old mtree is available as fmtree. 289 29020131014: 291 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 292 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 293 1.1.4_8 and verify bsdyml not linked in, before running "make 294 delete-old-libs": 295 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 296 or 297 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 298 29920131010: 300 The rc.d/jail script has been updated to support jail(8) 301 configuration file. The "jail_<jname>_*" rc.conf(5) variables 302 for per-jail configuration are automatically converted to 303 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 304 This is transparently backward compatible. See below about some 305 incompatibilities and rc.conf(5) manual page for more details. 306 307 These variables are now deprecated in favor of jail(8) configuration 308 file. One can use "rc.d/jail config <jname>" command to generate 309 a jail(8) configuration file in /var/run/jail.<jname>.conf without 310 running the jail(8) utility. The default pathname of the 311 configuration file is /etc/jail.conf and can be specified by 312 using $jail_conf or $jail_<jname>_conf variables. 313 314 Please note that jail_devfs_ruleset accepts an integer at 315 this moment. Please consider to rewrite the ruleset name 316 with an integer. 317 31820130930: 319 BIND has been removed from the base system. If all you need 320 is a local resolver, simply enable and start the local_unbound 321 service instead. Otherwise, several versions of BIND are 322 available in the ports tree. The dns/bind99 port is one example. 323 324 With this change, nslookup(1) and dig(1) are no longer in the base 325 system. Users should instead use host(1) and drill(1) which are 326 in the base system. Alternatively, nslookup and dig can 327 be obtained by installing the dns/bind-tools port. 328 32920130916: 330 With the addition of unbound(8), a new unbound user is now 331 required during installworld. "mergemaster -p" can be used to 332 add the user prior to installworld, as documented in the handbook. 333 33420130911: 335 OpenSSH is now built with DNSSEC support, and will by default 336 silently trust signed SSHFP records. This can be controlled with 337 the VerifyHostKeyDNS client configuration setting. DNSSEC support 338 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 339 34020130906: 341 The GNU Compiler Collection and C++ standard library (libstdc++) 342 are no longer built by default on platforms where clang is the system 343 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 344 options in src.conf. 345 34620130905: 347 The PROCDESC kernel option is now part of the GENERIC kernel 348 configuration and is required for the rwhod(8) to work. 349 If you are using custom kernel configuration, you should include 350 'options PROCDESC'. 351 35220130905: 353 The API and ABI related to the Capsicum framework was modified 354 in backward incompatible way. The userland libraries and programs 355 have to be recompiled to work with the new kernel. This includes the 356 following libraries and programs, but the whole buildworld is 357 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 358 kdump, procstat, rwho, rwhod, uniq. 359 36020130903: 361 AES-NI intrinsic support has been added to gcc. The AES-NI module 362 has been updated to use this support. A new gcc is required to build 363 the aesni module on both i386 and amd64. 364 36520130821: 366 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 367 Thus "device padlock_rng" and "device rdrand_rng" should be 368 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 369 37020130813: 371 WITH_ICONV has been split into two feature sets. WITH_ICONV now 372 enables just the iconv* functionality and is now on by default. 373 WITH_LIBICONV_COMPAT enables the libiconv api and link time 374 compatability. Set WITHOUT_ICONV to build the old way. 375 If you have been using WITH_ICONV before, you will very likely 376 need to turn on WITH_LIBICONV_COMPAT. 377 37820130806: 379 INVARIANTS option now enables DEBUG for code with OpenSolaris and 380 Illumos origin, including ZFS. If you have INVARIANTS in your 381 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 382 explicitly. 383 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 384 locks if WITNESS option was set. Because that generated a lot of 385 witness(9) reports and all of them were believed to be false 386 positives, this is no longer done. New option OPENSOLARIS_WITNESS 387 can be used to achieve the previous behavior. 388 38920130806: 390 Timer values in IPv6 data structures now use time_uptime instead 391 of time_second. Although this is not a user-visible functional 392 change, userland utilities which directly use them---ndp(8), 393 rtadvd(8), and rtsold(8) in the base system---need to be updated 394 to r253970 or later. 395 39620130802: 397 find -delete can now delete the pathnames given as arguments, 398 instead of only files found below them or if the pathname did 399 not contain any slashes. Formerly, the following error message 400 would result: 401 402 find: -delete: <path>: relative path potentially not safe 403 404 Deleting the pathnames given as arguments can be prevented 405 without error messages using -mindepth 1 or by changing 406 directory and passing "." as argument to find. This works in the 407 old as well as the new version of find. 408 40920130726: 410 Behavior of devfs rules path matching has been changed. 411 Pattern is now always matched against fully qualified devfs 412 path and slash characters must be explicitly matched by 413 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 414 subdirectories must be reviewed. 415 41620130716: 417 The default ARM ABI has changed to the ARM EABI. The old ABI is 418 incompatible with the ARM EABI and all programs and modules will 419 need to be rebuilt to work with a new kernel. 420 421 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 422 423 NOTE: Support for the old ABI will be removed in the future and 424 users are advised to upgrade. 425 42620130709: 427 pkg_install has been disconnected from the build if you really need it 428 you should add WITH_PKGTOOLS in your src.conf(5). 429 43020130709: 431 Most of network statistics structures were changed to be able 432 keep 64-bits counters. Thus all tools, that work with networking 433 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 434 43520130629: 436 Fix targets that run multiple make's to use && rather than ; 437 so that subsequent steps depend on success of previous. 438 439 NOTE: if building 'universe' with -j* on stable/8 or stable/9 440 it would be better to start the build using bmake, to avoid 441 overloading the machine. 442 44320130618: 444 Fix a bug that allowed a tracing process (e.g. gdb) to write 445 to a memory-mapped file in the traced process's address space 446 even if neither the traced process nor the tracing process had 447 write access to that file. 448 44920130615: 450 CVS has been removed from the base system. An exact copy 451 of the code is available from the devel/cvs port. 452 45320130613: 454 Some people report the following error after the switch to bmake: 455 456 make: illegal option -- J 457 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 458 ... 459 *** [buildworld] Error code 2 460 461 this likely due to an old instance of make in 462 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 463 which src/Makefile will use that blindly, if it exists, so if 464 you see the above error: 465 466 rm -rf `make -V MAKEPATH` 467 468 should resolve it. 469 47020130516: 471 Use bmake by default. 472 Whereas before one could choose to build with bmake via 473 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 474 make. The goal is to remove these knobs for 10-RELEASE. 475 476 It is worth noting that bmake (like gmake) treats the command 477 line as the unit of failure, rather than statements within the 478 command line. Thus '(cd some/where && dosomething)' is safer 479 than 'cd some/where; dosomething'. The '()' allows consistent 480 behavior in parallel build. 481 48220130429: 483 Fix a bug that allows NFS clients to issue READDIR on files. 484 48520130426: 486 The WITHOUT_IDEA option has been removed because 487 the IDEA patent expired. 488 48920130426: 490 The sysctl which controls TRIM support under ZFS has been renamed 491 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 492 enabled by default. 493 49420130425: 495 The mergemaster command now uses the default MAKEOBJDIRPREFIX 496 rather than creating it's own in the temporary directory in 497 order allow access to bootstrapped versions of tools such as 498 install and mtree. When upgrading from version of FreeBSD where 499 the install command does not support -l, you will need to 500 install a new mergemaster command if mergemaster -p is required. 501 This can be accomplished with the command (cd src/usr.sbin/mergemaster 502 && make install). 503 50420130404: 505 Legacy ATA stack, disabled and replaced by new CAM-based one since 506 FreeBSD 9.0, completely removed from the sources. Kernel modules 507 atadisk and atapi*, user-level tools atacontrol and burncd are 508 removed. Kernel option `options ATA_CAM` is now permanently enabled 509 and removed. 510 51120130319: 512 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 513 and socketpair(2). Software, in particular Kerberos, may 514 automatically detect and use these during building. The resulting 515 binaries will not work on older kernels. 516 51720130308: 518 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 519 information, see the respective 20130304 entry). 520 52120130304: 522 Recent commits to callout(9) changed the size of struct callout, 523 so the KBI is probably heavily disturbed. Also, some functions 524 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 525 by macros. Every kernel module using it won't load, so rebuild 526 is requested. 527 528 The ctl device has been re-enabled in GENERIC for i386 and amd64, 529 but does not initialize by default (because of the new CTL_DISABLE 530 option) to save memory. To re-enable it, remove the CTL_DISABLE 531 option from the kernel config file or set kern.cam.ctl.disable=0 532 in /boot/loader.conf. 533 53420130301: 535 The ctl device has been disabled in GENERIC for i386 and amd64. 536 This was done due to the extra memory being allocated at system 537 initialisation time by the ctl driver which was only used if 538 a CAM target device was created. This makes a FreeBSD system 539 unusable on 128MB or less of RAM. 540 54120130208: 542 A new compression method (lz4) has been merged to -HEAD. Please 543 refer to zpool-features(7) for more information. 544 545 Please refer to the "ZFS notes" section of this file for information 546 on upgrading boot ZFS pools. 547 54820130129: 549 A BSD-licensed patch(1) variant has been added and is installed 550 as bsdpatch, being the GNU version the default patch. 551 To inverse the logic and use the BSD-licensed one as default, 552 while having the GNU version installed as gnupatch, rebuild 553 and install world with the WITH_BSD_PATCH knob set. 554 55520130121: 556 Due to the use of the new -l option to install(1) during build 557 and install, you must take care not to directly set the INSTALL 558 make variable in your /etc/make.conf, /etc/src.conf, or on the 559 command line. If you wish to use the -C flag for all installs 560 you may be able to add INSTALL+=-C to /etc/make.conf or 561 /etc/src.conf. 562 56320130118: 564 The install(1) option -M has changed meaning and now takes an 565 argument that is a file or path to append logs to. In the 566 unlikely event that -M was the last option on the command line 567 and the command line contained at least two files and a target 568 directory the first file will have logs appended to it. The -M 569 option served little practical purpose in the last decade so its 570 use is expected to be extremely rare. 571 57220121223: 573 After switching to Clang as the default compiler some users of ZFS 574 on i386 systems started to experience stack overflow kernel panics. 575 Please consider using 'options KSTACK_PAGES=4' in such configurations. 576 57720121222: 578 GEOM_LABEL now mangles label names read from file system metadata. 579 Mangling affect labels containing spaces, non-printable characters, 580 '%' or '"'. Device names in /etc/fstab and other places may need to 581 be updated. 582 58320121217: 584 By default, only the 10 most recent kernel dumps will be saved. To 585 restore the previous behaviour (no limit on the number of kernel dumps 586 stored in the dump directory) add the following line to /etc/rc.conf: 587 588 savecore_flags="" 589 59020121201: 591 With the addition of auditdistd(8), a new auditdistd user is now 592 required during installworld. "mergemaster -p" can be used to 593 add the user prior to installworld, as documented in the handbook. 594 59520121117: 596 The sin6_scope_id member variable in struct sockaddr_in6 is now 597 filled by the kernel before passing the structure to the userland via 598 sysctl or routing socket. This means the KAME-specific embedded scope 599 id in sin6_addr.s6_addr[2] is always cleared in userland application. 600 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 601 __FreeBSD_version is bumped to 1000025. 602 60320121105: 604 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 605 This means that the world and kernel will be compiled with clang 606 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 607 and /usr/bin/cpp. To disable this behavior and revert to building 608 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 609 of current may need to bootstrap WITHOUT_CLANG first if the clang 610 build fails (its compatibility window doesn't extend to the 9 stable 611 branch point). 612 61320121102: 614 The IPFIREWALL_FORWARD kernel option has been removed. Its 615 functionality now turned on by default. 616 61720121023: 618 The ZERO_COPY_SOCKET kernel option has been removed and 619 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 620 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 621 mechanism which is not safe and may result in kernel crashes. 622 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 623 driver supports disposeable external page sized mbuf storage. 624 Proper replacements for both zero-copy mechanisms are under 625 consideration and will eventually lead to complete removal 626 of the two kernel options. 627 62820121023: 629 The IPv4 network stack has been converted to network byte 630 order. The following modules need to be recompiled together 631 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 632 pf(4), ipfw(4), ng_ipfw(4), stf(4). 633 63420121022: 635 Support for non-MPSAFE filesystems was removed from VFS. The 636 VFS_VERSION was bumped, all filesystem modules shall be 637 recompiled. 638 63920121018: 640 All the non-MPSAFE filesystems have been disconnected from 641 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 642 portalfs, smbfs, xfs. 643 64420121016: 645 The interface cloning API and ABI has changed. The following 646 modules need to be recompiled together with kernel: 647 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 648 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 649 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 650 65120121015: 652 The sdhci driver was split in two parts: sdhci (generic SD Host 653 Controller logic) and sdhci_pci (actual hardware driver). 654 No kernel config modifications are required, but if you 655 load sdhc as a module you must switch to sdhci_pci instead. 656 65720121014: 658 Import the FUSE kernel and userland support into base system. 659 66020121013: 661 The GNU sort(1) program has been removed since the BSD-licensed 662 sort(1) has been the default for quite some time and no serious 663 problems have been reported. The corresponding WITH_GNU_SORT 664 knob has also gone. 665 66620121006: 667 The pfil(9) API/ABI for AF_INET family has been changed. Packet 668 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 669 with new kernel. 670 67120121001: 672 The net80211(4) ABI has been changed to allow for improved driver 673 PS-POLL and power-save support. All wireless drivers need to be 674 recompiled to work with the new kernel. 675 67620120913: 677 The random(4) support for the VIA hardware random number 678 generator (`PADLOCK') is no longer enabled unconditionally. 679 Add the padlock_rng device in the custom kernel config if 680 needed. The GENERIC kernels on i386 and amd64 do include the 681 device, so the change only affects the custom kernel 682 configurations. 683 68420120908: 685 The pf(4) packet filter ABI has been changed. pfctl(8) and 686 snmp_pf module need to be recompiled to work with new kernel. 687 68820120828: 689 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 690 to -HEAD. Pools that have empty_bpobj in active state can not be 691 imported read-write with ZFS implementations that do not support 692 this feature. For more information read the zpool-features(5) 693 manual page. 694 69520120727: 696 The sparc64 ZFS loader has been changed to no longer try to auto- 697 detect ZFS providers based on diskN aliases but now requires these 698 to be explicitly listed in the OFW boot-device environment variable. 699 70020120712: 701 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 702 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 703 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 704 70520120712: 706 The following sysctls and tunables have been renamed for consistency 707 with other variables: 708 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 709 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 710 71120120628: 712 The sort utility has been replaced with BSD sort. For now, GNU sort 713 is also available as "gnusort" or the default can be set back to 714 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 715 installed as "bsdsort". 716 71720120611: 718 A new version of ZFS (pool version 5000) has been merged to -HEAD. 719 Starting with this version the old system of ZFS pool versioning 720 is superseded by "feature flags". This concept enables forward 721 compatibility against certain future changes in functionality of ZFS 722 pools. The first read-only compatible "feature flag" for ZFS pools 723 is named "com.delphix:async_destroy". For more information 724 read the new zpool-features(5) manual page. 725 Please refer to the "ZFS notes" section of this file for information 726 on upgrading boot ZFS pools. 727 72820120417: 729 The malloc(3) implementation embedded in libc now uses sources imported 730 as contrib/jemalloc. The most disruptive API change is to 731 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 732 delete it prior to installworld, and optionally re-create it using the 733 new format after rebooting. See malloc.conf(5) for details 734 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 735 NAMESPACE section). 736 73720120328: 738 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 739 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 740 now spelled mips. This is to aid compatibility with third-party 741 software that expects this naming scheme in uname(3). Little-endian 742 settings are unchanged. If you are updating a big-endian mips64 machine 743 from before this change, you may need to set MACHINE_ARCH=mips64 in 744 your environment before the new build system will recognize your machine. 745 74620120306: 747 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 748 platforms. 749 75020120229: 751 Now unix domain sockets behave "as expected" on nullfs(5). Previously 752 nullfs(5) did not pass through all behaviours to the underlying layer, 753 as a result if we bound to a socket on the lower layer we could connect 754 only to the lower path; if we bound to the upper layer we could connect 755 only to the upper path. The new behavior is one can connect to both the 756 lower and the upper paths regardless what layer path one binds to. 757 75820120211: 759 The getifaddrs upgrade path broken with 20111215 has been restored. 760 If you have upgraded in between 20111215 and 20120209 you need to 761 recompile libc again with your kernel. You still need to recompile 762 world to be able to configure CARP but this restriction already 763 comes from 20111215. 764 76520120114: 766 The set_rcvar() function has been removed from /etc/rc.subr. All 767 base and ports rc.d scripts have been updated, so if you have a 768 port installed with a script in /usr/local/etc/rc.d you can either 769 hand-edit the rcvar= line, or reinstall the port. 770 771 An easy way to handle the mass-update of /etc/rc.d: 772 rm /etc/rc.d/* && mergemaster -i 773 77420120109: 775 panic(9) now stops other CPUs in the SMP systems, disables interrupts 776 on the current CPU and prevents other threads from running. 777 This behavior can be reverted using the kern.stop_scheduler_on_panic 778 tunable/sysctl. 779 The new behavior can be incompatible with kern.sync_on_panic. 780 78120111215: 782 The carp(4) facility has been changed significantly. Configuration 783 of the CARP protocol via ifconfig(8) has changed, as well as format 784 of CARP events submitted to devd(8) has changed. See manual pages 785 for more information. The arpbalance feature of carp(4) is currently 786 not supported anymore. 787 788 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 789 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 790 need to be recompiled. 791 79220111122: 793 The acpi_wmi(4) status device /dev/wmistat has been renamed to 794 /dev/wmistat0. 795 79620111108: 797 The option VFS_ALLOW_NONMPSAFE option has been added in order to 798 explicitely support non-MPSAFE filesystems. 799 It is on by default for all supported platform at this present 800 time. 801 80220111101: 803 The broken amd(4) driver has been replaced with esp(4) in the amd64, 804 i386 and pc98 GENERIC kernel configuration files. 805 80620110930: 807 sysinstall has been removed 808 80920110923: 810 The stable/9 branch created in subversion. This corresponds to the 811 RELENG_9 branch in CVS. 812 81320110913: 814 This commit modifies vfs_register() so that it uses a hash 815 calculation to set vfc_typenum, which is enabled by default. 816 The first time a system is booted after this change, the 817 vfc_typenum values will change for all file systems. The 818 main effect of this is a change to the NFS server file handles 819 for file systems that use vfc_typenum in their fsid, such as ZFS. 820 It will, however, prevent vfc_typenum from changing when file 821 systems are loaded in a different order for subsequent reboots. 822 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 823 until you are ready to remount all NFS clients after a reboot. 824 82520110828: 826 Bump the shared library version numbers for libraries that 827 do not use symbol versioning, have changed the ABI compared 828 to stable/8 and which shared library version was not bumped. 829 Done as part of 9.0-RELEASE cycle. 830 83120110815: 832 During the merge of Capsicum features, the fget(9) KPI was modified. 833 This may require the rebuilding of out-of-tree device drivers -- 834 issues have been reported specifically with the nVidia device driver. 835 __FreeBSD_version is bumped to 900041. 836 837 Also, there is a period between 20110811 and 20110814 where the 838 special devices /dev/{stdin,stdout,stderr} did not work correctly. 839 Building world from a kernel during that window may not work. 840 84120110628: 842 The packet filter (pf) code has been updated to OpenBSD 4.5. 843 You need to update userland tools to be in sync with kernel. 844 This update breaks backward compatibility with earlier pfsync(4) 845 versions. Care must be taken when updating redundant firewall setups. 846 84720110608: 848 The following sysctls and tunables are retired on x86 platforms: 849 machdep.hlt_cpus 850 machdep.hlt_logical_cpus 851 The following sysctl is retired: 852 machdep.hyperthreading_allowed 853 The sysctls were supposed to provide a way to dynamically offline and 854 online selected CPUs on x86 platforms, but the implementation has not 855 been reliable especially with SCHED_ULE scheduler. 856 machdep.hyperthreading_allowed tunable is still available to ignore 857 hyperthreading CPUs at OS level. 858 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 859 where X is an APIC ID of a CPU. Be advised, though, that disabling 860 CPUs in non-uniform fashion will result in non-uniform topology and 861 may lead to sub-optimal system performance with SCHED_ULE, which is 862 a default scheduler. 863 86420110607: 865 cpumask_t type is retired and cpuset_t is used in order to describe 866 a mask of CPUs. 867 86820110531: 869 Changes to ifconfig(8) for dynamic address family detection mandate 870 that you are running a kernel of 20110525 or later. Make sure to 871 follow the update procedure to boot a new kernel before installing 872 world. 873 87420110513: 875 Support for sun4v architecture is officially dropped 876 87720110503: 878 Several KPI breaking changes have been committed to the mii(4) layer, 879 the PHY drivers and consequently some Ethernet drivers using mii(4). 880 This means that miibus.ko and the modules of the affected Ethernet 881 drivers need to be recompiled. 882 883 Note to kernel developers: Given that the OUI bit reversion problem 884 was fixed as part of these changes all mii(4) commits related to OUIs, 885 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 886 handling, no longer can be merged verbatim to stable/8 and previous 887 branches. 888 88920110430: 890 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 891 into their kernel configurations along with 'device pci'. 892 89320110427: 894 The default NFS client is now the new NFS client, so fstype "newnfs" 895 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 896 Although mounts via fstype "nfs" will usually work without userland 897 changes, it is recommended that the mount(8) and mount_nfs(8) 898 commands be rebuilt from sources and that a link to mount_nfs called 899 mount_oldnfs be created. The new client is compiled into the 900 kernel with "options NFSCL" and this is needed for diskless root 901 file systems. The GENERIC kernel configs have been changed to use 902 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 903 To use the regular/old client, you can "mount -t oldnfs ...". For 904 a diskless root file system, you must also include a line like: 905 906 vfs.root.mountfrom="oldnfs:" 907 908 in the boot/loader.conf on the root fs on the NFS server to make 909 a diskless root fs use the old client. 910 91120110424: 912 The GENERIC kernels for all architectures now default to the new 913 CAM-based ATA stack. It means that all legacy ATA drivers were 914 removed and replaced by respective CAM drivers. If you are using 915 ATA device names in /etc/fstab or other places, make sure to update 916 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 917 where 'Y's are the sequential numbers starting from zero for each type 918 in order of detection, unless configured otherwise with tunables, 919 see cam(4)). There will be symbolic links created in /dev/ to map 920 old adX devices to the respective adaY. They should provide basic 921 compatibility for file systems mounting in most cases, but they do 922 not support old user-level APIs and do not have respective providers 923 in GEOM. Consider using updated management tools with new device names. 924 925 It is possible to load devices ahci, ata, siis and mvs as modules, 926 but option ATA_CAM should remain in kernel configuration to make ata 927 module work as CAM driver supporting legacy ATA controllers. Device ata 928 still can be used in modular fashion (atacore + ...). Modules atadisk 929 and atapi* are not used and won't affect operation in ATA_CAM mode. 930 Note that to use CAM-based ATA kernel should include CAM devices 931 scbus, pass, da (or explicitly ada), cd and optionally others. All of 932 them are parts of the cam module. 933 934 ataraid(4) functionality is now supported by the RAID GEOM class. 935 To use it you can load geom_raid kernel module and use graid(8) tool 936 for management. Instead of /dev/arX device names, use /dev/raid/rX. 937 938 No kernel config options or code have been removed, so if a problem 939 arises, please report it and optionally revert to the old ATA stack. 940 In order to do it you can remove from the kernel config: 941 options ATA_CAM 942 device ahci 943 device mvs 944 device siis 945 , and instead add back: 946 device atadisk # ATA disk drives 947 device ataraid # ATA RAID drives 948 device atapicd # ATAPI CDROM drives 949 device atapifd # ATAPI floppy drives 950 device atapist # ATAPI tape drives 951 95220110423: 953 The default NFS server has been changed to the new server, which 954 was referred to as the experimental server. If you need to switch 955 back to the old NFS server, you must now put the "-o" option on 956 both the mountd and nfsd commands. This can be done using the 957 mountd_flags and nfs_server_flags rc.conf variables until an 958 update to the rc scripts is committed, which is coming soon. 959 96020110418: 961 The GNU Objective-C runtime library (libobjc), and other Objective-C 962 related components have been removed from the base system. If you 963 require an Objective-C library, please use one of the available ports. 964 96520110331: 966 ath(4) has been split into bus- and device- modules. if_ath contains 967 the HAL, the TX rate control and the network device code. if_ath_pci 968 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 969 contains the AHB glue. Users need to load both if_ath_pci and if_ath 970 in order to use ath on everything else. 971 972 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 973 need to load if_ath and if_ath_pci for ath(4) operation. 974 97520110314: 976 As part of the replacement of sysinstall, the process of building 977 release media has changed significantly. For details, please re-read 978 release(7), which has been updated to reflect the new build process. 979 98020110218: 981 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 982 is the last available version under GPLv2. It brings a number of new 983 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 984 4.1 and SSE 4.2), better support for powerpc64, a number of new 985 directives, and lots of other small improvements. See the ChangeLog 986 file in contrib/binutils for the full details. 987 98820110218: 989 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 990 compliant, and will now use half of hash for authentication. 991 This will break interoperability with all stacks (including all 992 actual FreeBSD versions) who implement 993 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 994 authentication). 995 The only workaround with such peers is to use another HMAC 996 algorithm for IPsec ("phase 2") authentication. 997 99820110207: 999 Remove the uio_yield prototype and symbol. This function has 1000 been misnamed since it was introduced and should not be 1001 globally exposed with this name. The equivalent functionality 1002 is now available using kern_yield(curthread->td_user_pri). 1003 The function remains undocumented. 1004 100520110112: 1006 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1007 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1008 for scalar sysctls is defined but disabled. Code that needs 1009 UQUAD to pass the type checking that must compile on older 1010 systems where the define is not present can check against 1011 __FreeBSD_version >= 900030. 1012 1013 The system dialog(1) has been replaced with a new version previously 1014 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1015 with the previous version, but the libdialog associated with it has 1016 a largely incompatible API. As such, the original version of libdialog 1017 will be kept temporarily as libodialog, until its base system consumers 1018 are replaced or updated. Bump __FreeBSD_version to 900030. 1019 102020110103: 1021 If you are trying to run make universe on a -stable system, and you get 1022 the following warning: 1023 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1024 unknown. config(8) likely too old." 1025 or something similar to it, then you must upgrade your -stable system 1026 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1027 stable/8) or build the config from the latest stable/8 branch and 1028 install it on your system. 1029 1030 Prior to this date, building a current universe on 8-stable system from 1031 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1032 error in the first kernel build phase. A new config on those old 1033 systems will fix that problem for older versions of -current. 1034 103520101228: 1036 The TCP stack has been modified to allow Khelp modules to interact with 1037 it via helper hook points and store per-connection data in the TCP 1038 control block. Bump __FreeBSD_version to 900029. User space tools that 1039 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1040 be recompiled. 1041 104220101114: 1043 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1044 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1045 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1046 to take advantage of it instead of using custom implementations. This 1047 means that these drivers now no longer unconditionally advertise 1048 support for flow control but only do so if flow control is a selected 1049 media option. This was implemented in the generic support that way in 1050 order to allow flow control to be switched on and off via ifconfig(8) 1051 with the PHY specific default to typically off in order to protect 1052 from unwanted effects. Consequently, if you used flow control with 1053 one of the above mentioned drivers you now need to explicitly enable 1054 it, for example via: 1055 ifconfig bge0 media auto mediaopt flowcontrol 1056 1057 Along with the above mentioned changes generic support for setting 1058 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1059 e1000phy(4) as well as ip1000phy(4) have been converted to take 1060 advantage of it. This means that these drivers now no longer take the 1061 link0 parameter for selecting master mode but the master media option 1062 has to be used instead, for example like in the following: 1063 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1064 1065 Selection of master mode now is also available with all other PHY 1066 drivers supporting 1000baseT. 1067 106820101111: 1069 The TCP stack has received a significant update to add support for 1070 modularised congestion control and generally improve the clarity of 1071 congestion control decisions. Bump __FreeBSD_version to 900025. User 1072 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1073 sockstat) need to be recompiled. 1074 107520101002: 1076 The man(1) utility has been replaced by a new version that no longer 1077 uses /etc/manpath.config. Please consult man.conf(5) for how to 1078 migrate local entries to the new format. 1079 108020100928: 1081 The copyright strings printed by login(1) and sshd(8) at the time of a 1082 new connection have been removed to follow other operating systems and 1083 upstream sshd. 1084 108520100915: 1086 A workaround for a fixed ld bug has been removed in kernel code, 1087 so make sure that your system ld is built from sources after 1088 revision 210245 from 2010-07-19 (r211583 if building head kernel 1089 on stable/8, r211584 for stable/7; both from 2010-08-21). 1090 A symptom of incorrect ld version is different addresses for 1091 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1092 109320100913: 1094 The $ipv6_prefer variable in rc.conf(5) has been split into 1095 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1096 1097 The $ip6addrctl_policy is a variable to choose a pre-defined 1098 address selection policy set by ip6addrctl(8). A value 1099 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1100 default is "AUTO". 1101 1102 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1103 flag (see an entry of 20090926) is set on an interface with no 1104 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1105 security reason. If you want IPv6 link-local address on all 1106 interfaces by default, set this to "YES". 1107 1108 The old ipv6_prefer="YES" is equivalent to 1109 ipv6_activate_all_interfaces="YES" and 1110 ip6addrctl_policy="ipv6_prefer". 1111 111220100913: 1113 DTrace has grown support for userland tracing. Due to this, DTrace is 1114 now i386 and amd64 only. 1115 dtruss(1) is now installed by default on those systems and a new 1116 kernel module is needed for userland tracing: fasttrap. 1117 No changes to your kernel config file are necessary to enable 1118 userland tracing, but you might consider adding 'STRIP=' and 1119 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1120 to have informative userland stack traces in DTrace (ustack). 1121 112220100725: 1123 The acpi_aiboost(4) driver has been removed in favor of the new 1124 aibs(4) driver. You should update your kernel configuration file. 1125 112620100722: 1127 BSD grep has been imported to the base system and it is built by 1128 default. It is completely BSD licensed, highly GNU-compatible, uses 1129 less memory than its GNU counterpart and has a small codebase. 1130 However, it is slower than its GNU counterpart, which is mostly 1131 noticeable for larger searches, for smaller ones it is measurable 1132 but not significant. The reason is complex, the most important factor 1133 is that we lack a modern and efficient regex library and GNU 1134 overcomes this by optimizing the searches internally. Future work 1135 on improving the regex performance is planned, for the meantime, 1136 users that need better performance, can build GNU grep instead by 1137 setting the WITH_GNU_GREP knob. 1138 113920100713: 1140 Due to the import of powerpc64 support, all existing powerpc kernel 1141 configuration files must be updated with a machine directive like this: 1142 machine powerpc powerpc 1143 1144 In addition, an updated config(8) is required to build powerpc kernels 1145 after this change. 1146 114720100713: 1148 A new version of ZFS (version 15) has been merged to -HEAD. 1149 This version uses a python library for the following subcommands: 1150 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1151 For full functionality of these commands the following port must 1152 be installed: sysutils/py-zfs 1153 115420100429: 1155 'vm_page's are now hashed by physical address to an array of mutexes. 1156 Currently this is only used to serialize access to hold_count. Over 1157 time the page queue mutex will be peeled away. This changes the size 1158 of pmap on every architecture. And requires all callers of vm_page_hold 1159 and vm_page_unhold to be updated. 1160 116120100402: 1162 WITH_CTF can now be specified in src.conf (not recommended, there 1163 are some problems with static executables), make.conf (would also 1164 affect ports which do not use GNU make and do not override the 1165 compile targets) or in the kernel config (via "makeoptions 1166 WITH_CTF=yes"). 1167 When WITH_CTF was specified there before this was silently ignored, 1168 so make sure that WITH_CTF is not used in places which could lead 1169 to unwanted behavior. 1170 117120100311: 1172 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1173 to allow 32-bit compatibility on non-x86 platforms. All kernel 1174 configurations on amd64 and ia64 platforms using these options must 1175 be modified accordingly. 1176 117720100113: 1178 The utmp user accounting database has been replaced with utmpx, 1179 the user accounting interface standardized by POSIX. 1180 Unfortunately the semantics of utmp and utmpx don't match, 1181 making it practically impossible to support both interfaces. 1182 The user accounting database is used by tools like finger(1), 1183 last(1), talk(1), w(1) and ac(8). 1184 1185 All applications in the base system use utmpx. This means only 1186 local binaries (e.g. from the ports tree) may still use these 1187 utmp database files. These applications must be rebuilt to make 1188 use of utmpx. 1189 1190 After the system has been upgraded, it is safe to remove the old 1191 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1192 assuming their contents is of no importance anymore. Old wtmp 1193 databases can only be used by last(1) and ac(8) after they have 1194 been converted to the new format using wtmpcvt(1). 1195 119620100108: 1197 Introduce the kernel thread "deadlock resolver" (which can be enabled 1198 via the DEADLKRES option, see NOTES for more details) and the 1199 sleepq_type() function for sleepqueues. 1200 120120091202: 1202 The rc.firewall and rc.firewall6 were unified, and 1203 rc.firewall6 and rc.d/ip6fw were removed. 1204 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1205 variables are obsoleted. Instead, the following new rc 1206 variables are added to rc.d/ipfw: 1207 1208 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1209 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1210 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1211 1212 The meanings correspond to the relevant IPv4 variables. 1213 121420091125: 1215 8.0-RELEASE. 1216 121720091113: 1218 The default terminal emulation for syscons(4) has been changed 1219 from cons25 to xterm on all platforms except pc98. This means 1220 that the /etc/ttys file needs to be updated to ensure correct 1221 operation of applications on the console. 1222 1223 The terminal emulation style can be toggled per window by using 1224 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1225 options can be used to change the compile-time default back to 1226 cons25. 1227 1228 To prevent graphical artifacts, make sure the TERM environment 1229 variable is set to match the terminal emulation that is being 1230 performed by syscons(4). 1231 123220091109: 1233 The layout of the structure ieee80211req_scan_result has changed. 1234 Applications that require wireless scan results (e.g. ifconfig(8)) 1235 from net80211 need to be recompiled. 1236 1237 Applications such as wpa_supplicant(8) may require a full world 1238 build without using NO_CLEAN in order to get synchronized with the 1239 new structure. 1240 124120091025: 1242 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1243 There's one kernel module for each firmware. Adding "device iwnfw" 1244 to the kernel configuration file means including all three firmware 1245 images inside the kernel. If you want to include just the one for 1246 your wireless card, use the devices iwn4965fw, iwn5000fw or 1247 iwn5150fw. 1248 124920090926: 1250 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1251 into rc.d/netif. The changes are the following: 1252 1253 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1254 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1255 Note that both variables need the "inet6" keyword at the head. 1256 1257 Do not set $ipv6_network_interfaces manually if you do not 1258 understand what you are doing. It is not needed in most cases. 1259 1260 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1261 they are obsolete. 1262 1263 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1264 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1265 1266 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1267 all configured interfaces have "inet6 accept_rtadv" in the 1268 $ifconfig_IF_ipv6. These are for backward compatibility. 1269 1270 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1271 functionality of interfaces with no corresponding 1272 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1273 and the default address selection policy of ip6addrctl(8) 1274 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1275 Note that if you want to configure IPv6 functionality on the 1276 disabled interfaces after boot, first you need to clear the flag by 1277 using ifconfig(8) like: 1278 1279 ifconfig em0 inet6 -ifdisabled 1280 1281 If YES, the default address selection policy is set as 1282 IPv6-preferred. 1283 1284 The default value of $ipv6_prefer is NO. 1285 1286 4. If your system need to receive Router Advertisement messages, 1287 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1288 scripts automatically invoke rtsol(8) when the interface becomes 1289 UP. The Router Advertisement messages are used for SLAAC 1290 (State-Less Address AutoConfiguration). 1291 129220090922: 1293 802.11s D3.03 support was committed. This is incompatible with the 1294 previous code, which was based on D3.0. 1295 129620090912: 1297 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1298 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1299 control whether accepting Router Advertisement messages or not. 1300 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1301 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1302 The ifconfig(8) utility now supports these flags. 1303 130420090910: 1305 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1306 mount(8) and -a option for df(1) to see them. 1307 130820090825: 1309 The old tunable hw.bus.devctl_disable has been superseded by 1310 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1311 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1312 is 1000. 1313 131420090813: 1315 Remove the option STOP_NMI. The default action is now to use NMI only 1316 for KDB via the newly introduced function stop_cpus_hard() and 1317 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1318 131920090803: 1320 The stable/8 branch created in subversion. This corresponds to the 1321 RELENG_8 branch in CVS. 1322 132320090719: 1324 Bump the shared library version numbers for all libraries that do not 1325 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1326 __FreeBSD_version to 800105. 1327 132820090714: 1329 Due to changes in the implementation of virtual network stack support, 1330 all network-related kernel modules must be recompiled. As this change 1331 breaks the ABI, bump __FreeBSD_version to 800104. 1332 133320090713: 1334 The TOE interface to the TCP syncache has been modified to remove 1335 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1336 The cxgb driver is the only TOE consumer affected by this change, and 1337 needs to be recompiled along with the kernel. As this change breaks 1338 the ABI, bump __FreeBSD_version to 800103. 1339 134020090712: 1341 Padding has been added to struct tcpcb, sackhint and tcpstat in 1342 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1343 maintaining the ABI. However, this change breaks the ABI, so bump 1344 __FreeBSD_version to 800102. User space tools that rely on the size of 1345 any of these structs (e.g. sockstat) need to be recompiled. 1346 134720090630: 1348 The NFS_LEGACYRPC option has been removed along with the old kernel 1349 RPC implementation that this option selected. Kernel configurations 1350 may need to be adjusted. 1351 135220090629: 1353 The network interface device nodes at /dev/net/<interface> have been 1354 removed. All ioctl operations can be performed the normal way using 1355 routing sockets. The kqueue functionality can generally be replaced 1356 with routing sockets. 1357 135820090628: 1359 The documentation from the FreeBSD Documentation Project (Handbook, 1360 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1361 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1362 136320090624: 1364 The ABI of various structures related to the SYSV IPC API have been 1365 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1366 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1367 800100. 1368 136920090622: 1370 Layout of struct vnet has changed as routing related variables were 1371 moved to their own Vimage module. Modules need to be recompiled. Bump 1372 __FreeBSD_version to 800099. 1373 137420090619: 1375 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1376 respectively. As long as no more than 16 groups per process are used, 1377 no changes should be visible. When more than 16 groups are used, old 1378 binaries may fail if they call getgroups() or getgrouplist() with 1379 statically sized storage. Recompiling will work around this, but 1380 applications should be modified to use dynamically allocated storage 1381 for group arrays as POSIX.1-2008 does not cap an implementation's 1382 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1383 1384 NFS and portalfs mounts may also be affected as the list of groups is 1385 truncated to 16. Users of NFS who use more than 16 groups, should 1386 take care that negative group permissions are not used on the exported 1387 file systems as they will not be reliable unless a GSSAPI based 1388 authentication method is used. 1389 139020090616: 1391 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1392 option compiles in the support for adaptive spinning for lockmgrs 1393 which want to enable it. The lockinit() function now accepts the flag 1394 LK_ADAPTIVE in order to make the lock object subject to adaptive 1395 spinning when both held in write and read mode. 1396 139720090613: 1398 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1399 changed. User applications that use this ioctl need to be rebuilt. 1400 140120090611: 1402 The layout of struct thread has changed. Kernel and modules need to 1403 be rebuilt. 1404 140520090608: 1406 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1407 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1408 140920090602: 1410 window(1) has been removed from the base system. It can now be 1411 installed from ports. The port is called misc/window. 1412 141320090601: 1414 The way we are storing and accessing `routing table' entries has 1415 changed. Programs reading the FIB, like netstat, need to be 1416 re-compiled. 1417 141820090601: 1419 A new netisr implementation has been added for FreeBSD 8. Network 1420 file system modules, such as igmp, ipdivert, and others, should be 1421 rebuilt. 1422 Bump __FreeBSD_version to 800096. 1423 142420090530: 1425 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1426 more valid. 1427 142820090530: 1429 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1430 Bump __FreeBSD_version to 800094. 1431 143220090529: 1433 Add mnt_xflag field to 'struct mount'. File system modules need to be 1434 rebuilt. 1435 Bump __FreeBSD_version to 800093. 1436 143720090528: 1438 The compiling option ADAPTIVE_SX has been retired while it has been 1439 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1440 The KPI for sx_init_flags() changes as accepting flags: 1441 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1442 been introduced in order to handle the reversed logic. 1443 Bump __FreeBSD_version to 800092. 1444 144520090527: 1446 Add support for hierarchical jails. Remove global securelevel. 1447 Bump __FreeBSD_version to 800091. 1448 144920090523: 1450 The layout of struct vnet_net has changed, therefore modules 1451 need to be rebuilt. 1452 Bump __FreeBSD_version to 800090. 1453 145420090523: 1455 The newly imported zic(8) produces a new format in the output. Please 1456 run tzsetup(8) to install the newly created data to /etc/localtime. 1457 145820090520: 1459 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1460 hw.usb.* and is now consistent again with previous releases. 1461 146220090520: 1463 802.11 monitor mode support was revised and driver api's were changed. 1464 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1465 of DLT_IEEE802_11. No user-visible data structures were changed but 1466 applications that use DLT_IEEE802_11 may require changes. 1467 Bump __FreeBSD_version to 800088. 1468 146920090430: 1470 The layout of the following structs has changed: sysctl_oid, 1471 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1472 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1473 panics may be experienced. World rebuild is required for 1474 correctly checking networking state from userland. 1475 Bump __FreeBSD_version to 800085. 1476 147720090429: 1478 MLDv2 and Source-Specific Multicast (SSM) have been merged 1479 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1480 The implementation of SSM within FreeBSD's IPv6 stack closely 1481 follows the IPv4 implementation. 1482 1483 For kernel developers: 1484 1485 * The most important changes are that the ip6_output() and 1486 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1487 and this lock has been downgraded to a non-recursive mutex. 1488 1489 * As with the changes to the IPv4 stack to support SSM, filtering 1490 of inbound multicast traffic must now be performed by transport 1491 protocols within the IPv6 stack. This does not apply to TCP and 1492 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1493 1494 * The KPIs used by IPv6 multicast are similar to those used by 1495 the IPv4 stack, with the following differences: 1496 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1497 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1498 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1499 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1500 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1501 for MLDv1 have an additional 'timer' argument which is used to 1502 jitter the initial membership report for the solicited-node 1503 multicast membership on-link. 1504 * This is not strictly needed for MLDv2, which already jitters 1505 its report transmissions. However, the 'timer' argument is 1506 preserved in case MLDv1 is active on the interface. 1507 1508 * The KAME linked-list based IPv6 membership implementation has 1509 been refactored to use a vector similar to that used by the IPv4 1510 stack. 1511 Code which maintains a list of its own multicast memberships 1512 internally, e.g. carp, has been updated to reflect the new 1513 semantics. 1514 1515 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1516 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1517 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1518 implementation constraint which needs to be addressed in HEAD. 1519 1520 For application developers: 1521 1522 * The changes are broadly similar to those made for the IPv4 1523 stack. 1524 1525 * The use of IPv4 and IPv6 multicast socket options on the same 1526 socket, using mapped addresses, HAS NOT been tested or supported. 1527 1528 * There are a number of issues with the implementation of various 1529 IPv6 multicast APIs which need to be resolved in the API surface 1530 before the implementation is fully compatible with KAME userland 1531 use, and these are mostly to do with interface index treatment. 1532 1533 * The literature available discusses the use of either the delta / ASM 1534 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1535 using setsourcefilter(3)/getsourcefilter(3). For more information 1536 please refer to RFC 3768, 'Socket Interface Extensions for 1537 Multicast Source Filters'. 1538 1539 * Applications which use the published RFC 3678 APIs should be fine. 1540 1541 For systems administrators: 1542 1543 * The mtest(8) utility has been refactored to support IPv6, in 1544 addition to IPv4. Interface addresses are no longer accepted 1545 as arguments, their names must be used instead. The utility 1546 will map the interface name to its first IPv4 address as 1547 returned by getifaddrs(3). 1548 1549 * The ifmcstat(8) utility has also been updated to print the MLDv2 1550 endpoint state and source filter lists via sysctl(3). 1551 1552 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1553 loopback of IPv6 multicast datagrams by default; it defaults to 1 1554 to preserve the existing behaviour. Disabling multicast loopback is 1555 recommended for optimal system performance. 1556 1557 * The IPv6 MROUTING code has been changed to examine this sysctl 1558 instead of attempting to perform a group lookup before looping 1559 back forwarded datagrams. 1560 1561 Bump __FreeBSD_version to 800084. 1562 156320090422: 1564 Implement low-level Bluetooth HCI API. 1565 Bump __FreeBSD_version to 800083. 1566 156720090419: 1568 The layout of struct malloc_type, used by modules to register new 1569 memory allocation types, has changed. Most modules will need to 1570 be rebuilt or panics may be experienced. 1571 Bump __FreeBSD_version to 800081. 1572 157320090415: 1574 Anticipate overflowing inp_flags - add inp_flags2. 1575 This changes most offsets in inpcb, so checking v4 connection 1576 state will require a world rebuild. 1577 Bump __FreeBSD_version to 800080. 1578 157920090415: 1580 Add an llentry to struct route and struct route_in6. Modules 1581 embedding a struct route will need to be recompiled. 1582 Bump __FreeBSD_version to 800079. 1583 158420090414: 1585 The size of rt_metrics_lite and by extension rtentry has changed. 1586 Networking administration apps will need to be recompiled. 1587 The route command now supports show as an alias for get, weighting 1588 of routes, sticky and nostick flags to alter the behavior of stateful 1589 load balancing. 1590 Bump __FreeBSD_version to 800078. 1591 159220090408: 1593 Do not use Giant for kbdmux(4) locking. This is wrong and 1594 apparently causing more problems than it solves. This will 1595 re-open the issue where interrupt handlers may race with 1596 kbdmux(4) in polling mode. Typical symptoms include (but 1597 not limited to) duplicated and/or missing characters when 1598 low level console functions (such as gets) are used while 1599 interrupts are enabled (for example geli password prompt, 1600 mountroot prompt etc.). Disabling kbdmux(4) may help. 1601 160220090407: 1603 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1604 kernel modules referencing any of the above need to be recompiled. 1605 Bump __FreeBSD_version to 800075. 1606 160720090320: 1608 GEOM_PART has become the default partition slicer for storage devices, 1609 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1610 introduces some changes: 1611 1612 MSDOS/EBR: the devices created from MSDOS extended partition entries 1613 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1614 to devices with offset-based names. fstabs may need to be modified. 1615 1616 BSD: the "geometry does not match label" warning is harmless in most 1617 cases but it points to problems in file system misalignment with 1618 disk geometry. The "c" partition is now implicit, covers the whole 1619 top-level drive and cannot be (mis)used by users. 1620 1621 General: Kernel dumps are now not allowed to be written to devices 1622 whose partition types indicate they are meant to be used for file 1623 systems (or, in case of MSDOS partitions, as something else than 1624 the "386BSD" type). 1625 1626 Most of these changes date approximately from 200812. 1627 162820090319: 1629 The uscanner(4) driver has been removed from the kernel. This follows 1630 Linux removing theirs in 2.6 and making libusb the default interface 1631 (supported by sane). 1632 163320090319: 1634 The multicast forwarding code has been cleaned up. netstat(1) 1635 only relies on KVM now for printing bandwidth upcall meters. 1636 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1637 ip6_mroute_mod respectively. The config(5) options for statically 1638 compiling this code remain the same, i.e. 'options MROUTING'. 1639 164020090315: 1641 Support for the IFF_NEEDSGIANT network interface flag has been 1642 removed, which means that non-MPSAFE network device drivers are no 1643 longer supported. In particular, if_ar, if_sr, and network device 1644 drivers from the old (legacy) USB stack can no longer be built or 1645 used. 1646 164720090313: 1648 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1649 a bunch of new language catalog files have also been added. 1650 This means that some common libc messages are now localized and 1651 they depend on the LC_MESSAGES environmental variable. 1652 165320090313: 1654 The k8temp(4) driver has been renamed to amdtemp(4) since 1655 support for Family 10 and Family 11 CPU families was added. 1656 165720090309: 1658 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1659 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1660 1661 For kernel developers, the most important changes are that the 1662 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1663 and this lock has been downgraded to a non-recursive mutex. 1664 1665 Transport protocols (UDP, Raw IP) are now responsible for filtering 1666 inbound multicast traffic according to group membership and source 1667 filters. The imo_multicast_filter() KPI exists for this purpose. 1668 Transports which do not use multicast (SCTP, TCP) already reject 1669 multicast by default. Forwarding and receive performance may improve 1670 as a mutex acquisition is no longer needed in the ip_input() 1671 low-level input path. in_addmulti() and in_delmulti() are shimmed 1672 to new KPIs which exist to support SSM in-kernel. 1673 1674 For application developers, it is recommended that loopback of 1675 multicast datagrams be disabled for best performance, as this 1676 will still cause the lock to be taken for each looped-back 1677 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1678 be tuned to 0 to disable loopback by default; it defaults to 1 1679 to preserve the existing behaviour. 1680 1681 For systems administrators, to obtain best performance with 1682 multicast reception and multiple groups, it is always recommended 1683 that a card with a suitably precise hash filter is used. Hash 1684 collisions will still result in the lock being taken within the 1685 transport protocol input path to check group membership. 1686 1687 If deploying FreeBSD in an environment with IGMP snooping switches, 1688 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1689 enabled; this forces 224.0.0.0/24 group membership to be announced 1690 via IGMP. 1691 1692 The size of 'struct igmpstat' has changed; netstat needs to be 1693 recompiled to reflect this. 1694 Bump __FreeBSD_version to 800070. 1695 169620090309: 1697 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1698 updated to use it. This requires a buildworld/installworld in order to 1699 update the library and dependencies (usbconfig, etc). Its advisable to 1700 rebuild all ports which uses libusb. More specific directions are given 1701 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1702 libusb are no longer required and can be removed. 1703 170420090302: 1705 A workaround is committed to allow the creation of System V shared 1706 memory segment of size > 2 GB on the 64-bit architectures. 1707 Due to a limitation of the existing ABI, the shm_segsz member 1708 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1709 wrong for large segments. Note that limits must be explicitly 1710 raised to allow such segments to be created. 1711 171220090301: 1713 The layout of struct ifnet has changed, requiring a rebuild of all 1714 network device driver modules. 1715 171620090227: 1717 The /dev handling for the new USB stack has changed, a 1718 buildworld/installworld is required for libusb20. 1719 172020090223: 1721 The new USB2 stack has now been permanently moved in and all kernel and 1722 module names reverted to their previous values (eg, usb, ehci, ohci, 1723 ums, ...). The old usb stack can be compiled in by prefixing the name 1724 with the letter 'o', the old usb modules have been removed. 1725 Updating entry 20090216 for xorg and 20090215 for libmap may still 1726 apply. 1727 172820090217: 1729 The rc.conf(5) option if_up_delay has been renamed to 1730 defaultroute_delay to better reflect its purpose. If you have 1731 customized this setting in /etc/rc.conf you need to update it to 1732 use the new name. 1733 173420090216: 1735 xorg 7.4 wants to configure its input devices via hald which does not 1736 yet work with USB2. If the keyboard/mouse does not work in xorg then 1737 add 1738 Option "AllowEmptyInput" "off" 1739 to your ServerLayout section. This will cause X to use the configured 1740 kbd and mouse sections from your xorg.conf. 1741 174220090215: 1743 The GENERIC kernels for all architectures now default to the new USB2 1744 stack. No kernel config options or code have been removed so if a 1745 problem arises please report it and optionally revert to the old USB 1746 stack. If you are loading USB kernel modules or have a custom kernel 1747 that includes GENERIC then ensure that usb names are also changed over, 1748 eg uftdi -> usb2_serial_ftdi. 1749 1750 Older programs linked against the ports libusb 0.1 need to be 1751 redirected to the new stack's libusb20. /etc/libmap.conf can 1752 be used for this: 1753 # Map old usb library to new one for usb2 stack 1754 libusb-0.1.so.8 libusb20.so.1 1755 175620090209: 1757 All USB ethernet devices now attach as interfaces under the name ueN 1758 (eg. ue0). This is to provide a predictable name as vendors often 1759 change usb chipsets in a product without notice. 1760 176120090203: 1762 The ichsmb(4) driver has been changed to require SMBus slave 1763 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1764 All of the other SMBus controller drivers require left-justified 1765 slave addresses, so this change makes all the drivers provide the 1766 same interface. 1767 176820090201: 1769 INET6 statistics (struct ip6stat) was updated. 1770 netstat(1) needs to be recompiled. 1771 177220090119: 1773 NTFS has been removed from GENERIC kernel on amd64 to match 1774 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1775 will load ntfs.ko module automatically when NTFS support is 1776 actually needed, unless ntfs.ko is not installed or security 1777 level prohibits loading kernel modules. If either is the case, 1778 "options NTFS" has to be added into kernel config. 1779 178020090115: 1781 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1782 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1783 800061. User space tools that rely on the size of struct tcpcb in 1784 tcp_var.h (e.g. sockstat) need to be recompiled. 1785 178620081225: 1787 ng_tty(4) module updated to match the new TTY subsystem. 1788 Due to API change, user-level applications must be updated. 1789 New API support added to mpd5 CVS and expected to be present 1790 in next mpd5.3 release. 1791 179220081219: 1793 With __FreeBSD_version 800060 the makefs tool is part of 1794 the base system (it was a port). 1795 179620081216: 1797 The afdata and ifnet locks have been changed from mutexes to 1798 rwlocks, network modules will need to be re-compiled. 1799 180020081214: 1801 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1802 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1803 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1804 architecture and 40 bytes on 64-bit architecture. The userland 1805 applications "arp" and "ndp" have been updated accordingly. 1806 The output from "netstat -r" shows only routing entries and 1807 none of the L2 information. 1808 180920081130: 1810 __FreeBSD_version 800057 marks the switchover from the 1811 binary ath hal to source code. Users must add the line: 1812 1813 options AH_SUPPORT_AR5416 1814 1815 to their kernel config files when specifying: 1816 1817 device ath_hal 1818 1819 The ath_hal module no longer exists; the code is now compiled 1820 together with the driver in the ath module. It is now 1821 possible to tailor chip support (i.e. reduce the set of chips 1822 and thereby the code size); consult ath_hal(4) for details. 1823 182420081121: 1825 __FreeBSD_version 800054 adds memory barriers to 1826 <machine/atomic.h>, new interfaces to ifnet to facilitate 1827 multiple hardware transmit queues for cards that support 1828 them, and a lock-less ring-buffer implementation to 1829 enable drivers to more efficiently manage queueing of 1830 packets. 1831 183220081117: 1833 A new version of ZFS (version 13) has been merged to -HEAD. 1834 This version has zpool attribute "listsnapshots" off by 1835 default, which means "zfs list" does not show snapshots, 1836 and is the same as Solaris behavior. 1837 183820081028: 1839 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1840 184120081009: 1842 The uhci, ohci, ehci and slhci USB Host controller drivers have 1843 been put into separate modules. If you load the usb module 1844 separately through loader.conf you will need to load the 1845 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1846 controller add the following to loader.conf: 1847 1848 uhci_load="YES" 1849 ehci_load="YES" 1850 185120081009: 1852 The ABI used by the PMC toolset has changed. Please keep 1853 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1854 sync. 1855 185620081009: 1857 atapci kernel module now includes only generic PCI ATA 1858 driver. AHCI driver moved to ataahci kernel module. 1859 All vendor-specific code moved into separate kernel modules: 1860 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1861 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1862 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1863 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1864 186520080820: 1866 The TTY subsystem of the kernel has been replaced by a new 1867 implementation, which provides better scalability and an 1868 improved driver model. Most common drivers have been migrated to 1869 the new TTY subsystem, while others have not. The following 1870 drivers have not yet been ported to the new TTY layer: 1871 1872 PCI/ISA: 1873 cy, digi, rc, rp, sio 1874 1875 USB: 1876 ubser, ucycom 1877 1878 Line disciplines: 1879 ng_h4, ng_tty, ppp, sl, snp 1880 1881 Adding these drivers to your kernel configuration file shall 1882 cause compilation to fail. 1883 188420080818: 1885 ntpd has been upgraded to 4.2.4p5. 1886 188720080801: 1888 OpenSSH has been upgraded to 5.1p1. 1889 1890 For many years, FreeBSD's version of OpenSSH preferred DSA 1891 over RSA for host and user authentication keys. With this 1892 upgrade, we've switched to the vendor's default of RSA over 1893 DSA. This may cause upgraded clients to warn about unknown 1894 host keys even for previously known hosts. Users should 1895 follow the usual procedure for verifying host keys before 1896 accepting the RSA key. 1897 1898 This can be circumvented by setting the "HostKeyAlgorithms" 1899 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1900 command line. 1901 1902 Please note that the sequence of keys offered for 1903 authentication has been changed as well. You may want to 1904 specify IdentityFile in a different order to revert this 1905 behavior. 1906 190720080713: 1908 The sio(4) driver has been removed from the i386 and amd64 1909 kernel configuration files. This means uart(4) is now the 1910 default serial port driver on those platforms as well. 1911 1912 To prevent collisions with the sio(4) driver, the uart(4) driver 1913 uses different names for its device nodes. This means the 1914 onboard serial port will now most likely be called "ttyu0" 1915 instead of "ttyd0". You may need to reconfigure applications to 1916 use the new device names. 1917 1918 When using the serial port as a boot console, be sure to update 1919 /boot/device.hints and /etc/ttys before booting the new kernel. 1920 If you forget to do so, you can still manually specify the hints 1921 at the loader prompt: 1922 1923 set hint.uart.0.at="isa" 1924 set hint.uart.0.port="0x3F8" 1925 set hint.uart.0.flags="0x10" 1926 set hint.uart.0.irq="4" 1927 boot -s 1928 192920080609: 1930 The gpt(8) utility has been removed. Use gpart(8) to partition 1931 disks instead. 1932 193320080603: 1934 The version that Linuxulator emulates was changed from 2.4.2 1935 to 2.6.16. If you experience any problems with Linux binaries 1936 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1937 if it fixes the problem contact emulation mailing list. 1938 193920080525: 1940 ISDN4BSD (I4B) was removed from the src tree. You may need to 1941 update a your kernel configuration and remove relevant entries. 1942 194320080509: 1944 I have checked in code to support multiple routing tables. 1945 See the man pages setfib(1) and setfib(2). 1946 This is a hopefully backwards compatible version, 1947 but to make use of it you need to compile your kernel 1948 with options ROUTETABLES=2 (or more up to 16). 1949 195020080420: 1951 The 802.11 wireless support was redone to enable multi-bss 1952 operation on devices that are capable. The underlying device 1953 is no longer used directly but instead wlanX devices are 1954 cloned with ifconfig. This requires changes to rc.conf files. 1955 For example, change: 1956 ifconfig_ath0="WPA DHCP" 1957 to 1958 wlans_ath0=wlan0 1959 ifconfig_wlan0="WPA DHCP" 1960 see rc.conf(5) for more details. In addition, mergemaster of 1961 /etc/rc.d is highly recommended. Simultaneous update of userland 1962 and kernel wouldn't hurt either. 1963 1964 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1965 modules were merged into the base wlan module. All references 1966 to these modules (e.g. in kernel config files) must be removed. 1967 196820080408: 1969 psm(4) has gained write(2) support in native operation level. 1970 Arbitrary commands can be written to /dev/psm%d and status can 1971 be read back from it. Therefore, an application is responsible 1972 for status validation and error recovery. It is a no-op in 1973 other operation levels. 1974 197520080312: 1976 Support for KSE threading has been removed from the kernel. To 1977 run legacy applications linked against KSE libmap.conf may 1978 be used. The following libmap.conf may be used to ensure 1979 compatibility with any prior release: 1980 1981 libpthread.so.1 libthr.so.1 1982 libpthread.so.2 libthr.so.2 1983 libkse.so.3 libthr.so.3 1984 198520080301: 1986 The layout of struct vmspace has changed. This affects libkvm 1987 and any executables that link against libkvm and use the 1988 kvm_getprocs() function. In particular, but not exclusively, 1989 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1990 The effects are minimal, but it's advisable to upgrade world 1991 nonetheless. 1992 199320080229: 1994 The latest em driver no longer has support in it for the 1995 82575 adapter, this is now moved to the igb driver. The 1996 split was done to make new features that are incompatible 1997 with older hardware easier to do. 1998 199920080220: 2000 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2001 likewise the kernel option is now GEOM_LINUX_LVM. 2002 200320080211: 2004 The default NFS mount mode has changed from UDP to TCP for 2005 increased reliability. If you rely on (insecurely) NFS 2006 mounting across a firewall you may need to update your 2007 firewall rules. 2008 200920080208: 2010 Belatedly note the addition of m_collapse for compacting 2011 mbuf chains. 2012 201320080126: 2014 The fts(3) structures have been changed to use adequate 2015 integer types for their members and so to be able to cope 2016 with huge file trees. The old fts(3) ABI is preserved 2017 through symbol versioning in libc, so third-party binaries 2018 using fts(3) should still work, although they will not take 2019 advantage of the extended types. At the same time, some 2020 third-party software might fail to build after this change 2021 due to unportable assumptions made in its source code about 2022 fts(3) structure members. Such software should be fixed 2023 by its vendor or, in the worst case, in the ports tree. 2024 FreeBSD_version 800015 marks this change for the unlikely 2025 case that a portable fix is impossible. 2026 202720080123: 2028 To upgrade to -current after this date, you must be running 2029 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2030 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2031 203220071128: 2033 The ADAPTIVE_GIANT kernel option has been retired because its 2034 functionality is the default now. 2035 203620071118: 2037 The AT keyboard emulation of sunkbd(4) has been turned on 2038 by default. In order to make the special symbols of the Sun 2039 keyboards driven by sunkbd(4) work under X these now have 2040 to be configured the same way as Sun USB keyboards driven 2041 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2042 2043 Option "XkbLayout" "us" 2044 Option "XkbRules" "xorg" 2045 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2046 204720071024: 2048 It has been decided that it is desirable to provide ABI 2049 backwards compatibility to the FreeBSD 4/5/6 versions of the 2050 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2051 broken with the introduction of PCI domain support (see the 2052 20070930 entry). Unfortunately, this required the ABI of 2053 PCIOCGETCONF to be broken again in order to be able to 2054 provide backwards compatibility to the old version of that 2055 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2056 again. As for prominent ports this affects neither pciutils 2057 nor xorg-server this time, the hal port needs to be rebuilt 2058 however. 2059 206020071020: 2061 The misnamed kthread_create() and friends have been renamed 2062 to kproc_create() etc. Many of the callers already 2063 used kproc_start().. 2064 I will return kthread_create() and friends in a while 2065 with implementations that actually create threads, not procs. 2066 Renaming corresponds with version 800002. 2067 206820071010: 2069 RELENG_7 branched. 2070 2071COMMON ITEMS: 2072 2073 General Notes 2074 ------------- 2075 Avoid using make -j when upgrading. While generally safe, there are 2076 sometimes problems using -j to upgrade. If your upgrade fails with 2077 -j, please try again without -j. From time to time in the past there 2078 have been problems using -j with buildworld and/or installworld. This 2079 is especially true when upgrading between "distant" versions (eg one 2080 that cross a major release boundary or several minor releases, or when 2081 several months have passed on the -current branch). 2082 2083 Sometimes, obscure build problems are the result of environment 2084 poisoning. This can happen because the make utility reads its 2085 environment when searching for values for global variables. To run 2086 your build attempts in an "environmental clean room", prefix all make 2087 commands with 'env -i '. See the env(1) manual page for more details. 2088 2089 When upgrading from one major version to another it is generally best 2090 to upgrade to the latest code in the currently installed branch first, 2091 then do an upgrade to the new branch. This is the best-tested upgrade 2092 path, and has the highest probability of being successful. Please try 2093 this approach before reporting problems with a major version upgrade. 2094 2095 When upgrading a live system, having a root shell around before 2096 installing anything can help undo problems. Not having a root shell 2097 around can lead to problems if pam has changed too much from your 2098 starting point to allow continued authentication after the upgrade. 2099 2100 ZFS notes 2101 --------- 2102 When upgrading the boot ZFS pool to a new version, always follow 2103 these two steps: 2104 2105 1.) recompile and reinstall the ZFS boot loader and boot block 2106 (this is part of "make buildworld" and "make installworld") 2107 2108 2.) update the ZFS boot block on your boot drive 2109 2110 The following example updates the ZFS boot block on the first 2111 partition (freebsd-boot) of a GPT partitioned drive ad0: 2112 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2113 2114 Non-boot pools do not need these updates. 2115 2116 To build a kernel 2117 ----------------- 2118 If you are updating from a prior version of FreeBSD (even one just 2119 a few days old), you should follow this procedure. It is the most 2120 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2121 2122 make kernel-toolchain 2123 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2124 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2125 2126 To test a kernel once 2127 --------------------- 2128 If you just want to boot a kernel once (because you are not sure 2129 if it works, or if you want to boot a known bad kernel to provide 2130 debugging information) run 2131 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2132 nextboot -k testkernel 2133 2134 To just build a kernel when you know that it won't mess you up 2135 -------------------------------------------------------------- 2136 This assumes you are already running a CURRENT system. Replace 2137 ${arch} with the architecture of your machine (e.g. "i386", 2138 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2139 2140 cd src/sys/${arch}/conf 2141 config KERNEL_NAME_HERE 2142 cd ../compile/KERNEL_NAME_HERE 2143 make depend 2144 make 2145 make install 2146 2147 If this fails, go to the "To build a kernel" section. 2148 2149 To rebuild everything and install it on the current system. 2150 ----------------------------------------------------------- 2151 # Note: sometimes if you are running current you gotta do more than 2152 # is listed here if you are upgrading from a really old current. 2153 2154 <make sure you have good level 0 dumps> 2155 make buildworld 2156 make kernel KERNCONF=YOUR_KERNEL_HERE 2157 [1] 2158 <reboot in single user> [3] 2159 mergemaster -p [5] 2160 make installworld 2161 mergemaster -i [4] 2162 make delete-old [6] 2163 <reboot> 2164 2165 To cross-install current onto a separate partition 2166 -------------------------------------------------- 2167 # In this approach we use a separate partition to hold 2168 # current's root, 'usr', and 'var' directories. A partition 2169 # holding "/", "/usr" and "/var" should be about 2GB in 2170 # size. 2171 2172 <make sure you have good level 0 dumps> 2173 <boot into -stable> 2174 make buildworld 2175 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2176 <maybe newfs current's root partition> 2177 <mount current's root partition on directory ${CURRENT_ROOT}> 2178 make installworld DESTDIR=${CURRENT_ROOT} 2179 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2180 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2181 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2182 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2183 <reboot into current> 2184 <do a "native" rebuild/install as described in the previous section> 2185 <maybe install compatibility libraries from ports/misc/compat*> 2186 <reboot> 2187 2188 2189 To upgrade in-place from stable to current 2190 ---------------------------------------------- 2191 <make sure you have good level 0 dumps> 2192 make buildworld [9] 2193 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2194 [1] 2195 <reboot in single user> [3] 2196 mergemaster -p [5] 2197 make installworld 2198 mergemaster -i [4] 2199 make delete-old [6] 2200 <reboot> 2201 2202 Make sure that you've read the UPDATING file to understand the 2203 tweaks to various things you need. At this point in the life 2204 cycle of current, things change often and you are on your own 2205 to cope. The defaults can also change, so please read ALL of 2206 the UPDATING entries. 2207 2208 Also, if you are tracking -current, you must be subscribed to 2209 freebsd-current@freebsd.org. Make sure that before you update 2210 your sources that you have read and understood all the recent 2211 messages there. If in doubt, please track -stable which has 2212 much fewer pitfalls. 2213 2214 [1] If you have third party modules, such as vmware, you 2215 should disable them at this point so they don't crash your 2216 system on reboot. 2217 2218 [3] From the bootblocks, boot -s, and then do 2219 fsck -p 2220 mount -u / 2221 mount -a 2222 cd src 2223 adjkerntz -i # if CMOS is wall time 2224 Also, when doing a major release upgrade, it is required that 2225 you boot into single user mode to do the installworld. 2226 2227 [4] Note: This step is non-optional. Failure to do this step 2228 can result in a significant reduction in the functionality of the 2229 system. Attempting to do it by hand is not recommended and those 2230 that pursue this avenue should read this file carefully, as well 2231 as the archives of freebsd-current and freebsd-hackers mailing lists 2232 for potential gotchas. The -U option is also useful to consider. 2233 See mergemaster(8) for more information. 2234 2235 [5] Usually this step is a noop. However, from time to time 2236 you may need to do this if you get unknown user in the following 2237 step. It never hurts to do it all the time. You may need to 2238 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2239 install) after the buildworld before this step if you last updated 2240 from current before 20130425 or from -stable before 20130430. 2241 2242 [6] This only deletes old files and directories. Old libraries 2243 can be deleted by "make delete-old-libs", but you have to make 2244 sure that no program is using those libraries anymore. 2245 2246 [8] In order to have a kernel that can run the 4.x binaries needed to 2247 do an installworld, you must include the COMPAT_FREEBSD4 option in 2248 your kernel. Failure to do so may leave you with a system that is 2249 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2250 required to run the 5.x binaries on more recent kernels. And so on 2251 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2252 2253 Make sure that you merge any new devices from GENERIC since the 2254 last time you updated your kernel config file. 2255 2256 [9] When checking out sources, you must include the -P flag to have 2257 cvs prune empty directories. 2258 2259 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2260 "?=" instead of the "=" assignment operator, so that buildworld can 2261 override the CPUTYPE if it needs to. 2262 2263 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2264 not on the command line, or in /etc/make.conf. buildworld will 2265 warn if it is improperly defined. 2266FORMAT: 2267 2268This file contains a list, in reverse chronological order, of major 2269breakages in tracking -current. It is not guaranteed to be a complete 2270list of such breakages, and only contains entries since October 10, 2007. 2271If you need to see UPDATING entries from before that date, you will need 2272to fetch an UPDATING file from an older FreeBSD release. 2273 2274Copyright information: 2275 2276Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2277 2278Redistribution, publication, translation and use, with or without 2279modification, in full or in part, in any form or format of this 2280document are permitted without further permission from the author. 2281 2282THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2283IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2284WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2285DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2286INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2287(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2288SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2289HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2290STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2291IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2292POSSIBILITY OF SUCH DAMAGE. 2293 2294Contact Warner Losh if you have any questions about your use of 2295this document. 2296 2297$FreeBSD: releng/10.1/UPDATING 288385 2015-09-29 18:07:18Z delphij $ 2298