UPDATING revision 290000
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 1920151026: p23 FreeBSD-SA-15:25.ntp 20 21 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 22 23 The configuration file syntax has been changed, thus mergemaster 24 run is recommended. Now the "kod" parameter requires "limited" 25 parameter. If the ntp.conf is not updated, the ntpd will run 26 successfully, but with KoD disabled. 27 2820151002: p22 FreeBSD-SA-15:24.rpcbind [revised] 29 Revised patch to address a regression that prevents NIS from working. 30 3120150929: p21 FreeBSD-SA-15:24.rpcbind 32 33 Fix rpcbind(8) remote denial of service. [SA-15:24] 34 3520150916: p20 FreeBSD-EN-15:18.pkg 36 37 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 38 3920150825: p19 FreeBSD-SA-15:21.amd64 40 FreeBSD-SA-15:22.openssh 41 FreeBSD-EN-15:14.ixgbe 42 FreeBSD-EN-15:15.pkg 43 44 Fix local privilege escalation in IRET handler. [SA-15:21] 45 46 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 47 48 Disabled ixgbe(4) flow-director support. [EN-15:14] 49 50 Fix insufficient check of unsupported pkg(7) signature methods. 51 [EN-15:15] 52 5320150818: p18 FreeBSD-SA-15:20.expat 54 55 Fix multiple integer overflows in expat (libbsdxml) XML parser. 56 [SA-15:20] 57 5820150805: p17 FreeBSD-SA-15:18.bsdpatch 59 FreeBSD-SA-15:19.routed 60 61 Fix patch(1) shell injection vulnerability via ed(1). 62 [SA-15:18] 63 64 Fix routed remote denial of service vulnerability. [SA-15:19] 65 6620150728: p16 FreeBSD-SA-15:14.bsdpatch 67 FreeBSD-SA-15:15.tcp 68 FreeBSD-SA-15:16.openssh 69 70 Fix patch(1) shell injection vulnerability. [SA-15:14] 71 72 Fix resource exhaustion in TCP reassembly. [SA-15:15] 73 74 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 75 7620150721: p15 FreeBSD-SA-15:13.tcp 77 78 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 79 [SA-15:13] 80 8120150630: p14 FreeBSD-EN-15:08.sendmail [revised] 82 FreeBSD-EN-15:09.xlocale 83 FreeBSD-EN-15:10.iconv 84 85 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 86 87 Fix inconsistency between locale and rune locale states. 88 [EN-15:09] 89 90 Improved iconv(3) UTF-7 support. [EN-15:10] 91 9220150618: p13 FreeBSD-EN-15:08.sendmail 93 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 94 9520150612: p12 FreeBSD-SA-15:10.openssl 96 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 97 9820150609: p11 FreeBSD-EN-15:06.file 99 FreeBSD-EN-15:07.zfs 100 101 Updated base system file(1) to 5.22 to address multiple denial 102 of service issues. [EN-15:06] 103 104 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 105 [EN-15:07] 106 10720150513: p10 FreeBSD-EN-15:04.freebsd-update 108 FreeBSD-EN-15:05.ufs 109 110 Fix bug with freebsd-update(8) that does not ensure the previous 111 upgrade was completed. [EN-15:04] 112 113 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 114 11520150407: p9 FreeBSD-SA-15:04.igmp [revised] 116 FreeBSD-SA-15:07.ntp 117 FreeBSD-SA-15:08.bsdinstall 118 FreeBSD-SA-15:09.ipv6 119 120 Improved patch for SA-15:04.igmp. 121 122 Fix multiple vulnerabilities of ntp. [SA-15:07] 123 124 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 125 126 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 127 12820150320: p8 129 Fix patch for SA-15:06.openssl. 130 13120150319: p7 FreeBSD-SA-15:06.openssl 132 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 133 13420150225: p6 FreeBSD-SA-15:04.igmp 135 FreeBSD-EN-15:01.vt 136 FreeBSD-EN-15:02.openssl 137 FreeBSD-EN-15:03.freebsd-update 138 139 Fix integer overflow in IGMP protocol. [SA-15:04] 140 141 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 142 143 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 144 145 Fix freebsd-update libraries update ordering issue. [EN-15:03] 146 14720150127: p5 FreeBSD-SA-15:02.kmem 148 FreeBSD-SA-15:03.sctp 149 150 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 151 vulnerability. [SA-15:02] 152 153 Fix SCTP stream reset vulnerability. [SA-15:03] 154 15520150114: p4 FreeBSD-SA-15:01.openssl 156 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 157 15820141223: p3 FreeBSD-SA-14:31.ntp 159 FreeBSD-EN-14:13.freebsd-update 160 161 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 162 Fix directory deletion issue in freebsd-update. [EN-14:13] 163 16420141217: p2 FreeBSD-SA-14:30.unbound 165 Fix unbound remote denial of service vulnerability. 166 16720141210: p1 FreeBSD-SA-14:27.stdio 168 FreeBSD-SA-14:28.file 169 170 Fix buffer overflow in stdio. [SA-14:27] 171 172 Fix multiple vulnerabilities in file(1) and libmagic(3). 173 [SA-14:28] 174 17520140904: 176 The ofwfb driver, used to provide a graphics console on PowerPC when 177 using vt(4), no longer allows mmap() of all of physical memory. This 178 will prevent Xorg on PowerPC with some ATI graphics cards from 179 initializing properly unless x11-servers/xorg-server is updated to 180 1.12.4_8 or newer. 181 18220140831: 183 The libatf-c and libatf-c++ major versions were downgraded to 0 and 184 1 respectively to match the upstream numbers. They were out of 185 sync because, when they were originally added to FreeBSD, the 186 upstream versions were not respected. These libraries are private 187 and not yet built by default, so renumbering them should be a 188 non-issue. However, unclean source trees will yield broken test 189 programs once the operator executes "make delete-old-libs" after a 190 "make installworld". 191 192 Additionally, the atf-sh binary was made private by moving it into 193 /usr/libexec/. Already-built shell test programs will keep the 194 path to the old binary so they will break after "make delete-old" 195 is run. 196 197 If you are using WITH_TESTS=yes (not the default), wipe the object 198 tree and rebuild from scratch to prevent spurious test failures. 199 This is only needed once: the misnumbered libraries and misplaced 200 binaries have been added to OptionalObsoleteFiles.inc so they will 201 be removed during a clean upgrade. 202 20320140814: 204 The ixgbe tunables now match their sysctl counterparts, for example: 205 hw.ixgbe.enable_aim => hw.ix.enable_aim 206 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 207 20820140801: 209 The NFSv4.1 server committed by r269398 changes the internal 210 function call interfaces used between the NFS and krpc modules. 211 As such, __FreeBSD_version was bumped. 212 21320140729: 214 The default unbound configuration has been modified to address 215 issues with reverse lookups on networks that use private 216 address ranges. If you use the local_unbound service, run 217 "service local_unbound setup" as root to regenerate your 218 configuration, then "service local_unbound reload" to load the 219 new configuration. 220 22120140717: 222 It is no longer necessary to include the dwarf version in your DEBUG 223 options in your kernel config file. The bug that required it to be 224 placed in the config file has bene fixed. DEBUG should now just 225 contain -g. The build system will automatically update things 226 to do the right thing. 227 22820140715: 229 Several ABI breaking changes were merged to CTL and new iSCSI code. 230 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 231 iscsictl need to be rebuilt to work with a new kernel. 232 23320140708: 234 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 235 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 236 which differs from the behaviour controlled by this knob.) 237 23820140608: 239 On i386 and amd64 systems, the onifconsole flag is now set by default 240 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 241 as a login TTY if it is set in the bootloader as an active kernel 242 console. No changes in behavior should result otherwise. To revert to 243 the previous behavior, set ttyu0 to "off" in /etc/ttys. 244 24520140512: 246 Clang and llvm have been upgraded to 3.4.1 release. 247 24820140321: 249 Clang and llvm have been upgraded to 3.4 release. 250 25120140306: 252 If a Makefile in a tests/ directory was auto-generating a Kyuafile 253 instead of providing an explicit one, this would prevent such 254 Makefile from providing its own Kyuafile in the future during 255 NO_CLEAN builds. This has been fixed in the Makefiles but manual 256 intervention is needed to clean an objdir if you use NO_CLEAN: 257 # find /usr/obj -name Kyuafile | xargs rm -f 258 25920140303: 260 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 261 capability mode support. Please note that enabling the feature in 262 kernel is still highly recommended. 263 26420140227: 265 OpenSSH is now built with sandbox support, and will use sandbox as 266 the default privilege separation method. This requires Capsicum 267 capability mode support in kernel. 268 26920140216: 270 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 271 been deprecated and will not be part of FreeBSD 11.0 and later 272 releases. If you use this driver, please consider switching to 273 the nfe(4) driver instead. 274 27520140120: 276 10.0-RELEASE. 277 27820131216: 279 The behavior of gss_pseudo_random() for the krb5 mechanism 280 has changed, for applications requesting a longer random string 281 than produced by the underlying enctype's pseudo-random() function. 282 In particular, the random string produced from a session key of 283 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 284 be different at the 17th octet and later, after this change. 285 The counter used in the PRF+ construction is now encoded as a 286 big-endian integer in accordance with RFC 4402. 287 __FreeBSD_version is bumped to 1000701. 288 28920131108: 290 The WITHOUT_ATF build knob has been removed and its functionality 291 has been subsumed into the more generic WITHOUT_TESTS. If you were 292 using the former to disable the build of the ATF libraries, you 293 should change your settings to use the latter. 294 29520131031: 296 The default version of mtree is nmtree which is obtained from 297 NetBSD. The output is generally the same, but may vary 298 slightly. If you found you need identical output adding 299 "-F freebsd9" to the command line should do the trick. For the 300 time being, the old mtree is available as fmtree. 301 30220131014: 303 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 304 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 305 1.1.4_8 and verify bsdyml not linked in, before running "make 306 delete-old-libs": 307 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 308 or 309 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 310 31120131010: 312 The rc.d/jail script has been updated to support jail(8) 313 configuration file. The "jail_<jname>_*" rc.conf(5) variables 314 for per-jail configuration are automatically converted to 315 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 316 This is transparently backward compatible. See below about some 317 incompatibilities and rc.conf(5) manual page for more details. 318 319 These variables are now deprecated in favor of jail(8) configuration 320 file. One can use "rc.d/jail config <jname>" command to generate 321 a jail(8) configuration file in /var/run/jail.<jname>.conf without 322 running the jail(8) utility. The default pathname of the 323 configuration file is /etc/jail.conf and can be specified by 324 using $jail_conf or $jail_<jname>_conf variables. 325 326 Please note that jail_devfs_ruleset accepts an integer at 327 this moment. Please consider to rewrite the ruleset name 328 with an integer. 329 33020130930: 331 BIND has been removed from the base system. If all you need 332 is a local resolver, simply enable and start the local_unbound 333 service instead. Otherwise, several versions of BIND are 334 available in the ports tree. The dns/bind99 port is one example. 335 336 With this change, nslookup(1) and dig(1) are no longer in the base 337 system. Users should instead use host(1) and drill(1) which are 338 in the base system. Alternatively, nslookup and dig can 339 be obtained by installing the dns/bind-tools port. 340 34120130916: 342 With the addition of unbound(8), a new unbound user is now 343 required during installworld. "mergemaster -p" can be used to 344 add the user prior to installworld, as documented in the handbook. 345 34620130911: 347 OpenSSH is now built with DNSSEC support, and will by default 348 silently trust signed SSHFP records. This can be controlled with 349 the VerifyHostKeyDNS client configuration setting. DNSSEC support 350 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 351 35220130906: 353 The GNU Compiler Collection and C++ standard library (libstdc++) 354 are no longer built by default on platforms where clang is the system 355 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 356 options in src.conf. 357 35820130905: 359 The PROCDESC kernel option is now part of the GENERIC kernel 360 configuration and is required for the rwhod(8) to work. 361 If you are using custom kernel configuration, you should include 362 'options PROCDESC'. 363 36420130905: 365 The API and ABI related to the Capsicum framework was modified 366 in backward incompatible way. The userland libraries and programs 367 have to be recompiled to work with the new kernel. This includes the 368 following libraries and programs, but the whole buildworld is 369 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 370 kdump, procstat, rwho, rwhod, uniq. 371 37220130903: 373 AES-NI intrinsic support has been added to gcc. The AES-NI module 374 has been updated to use this support. A new gcc is required to build 375 the aesni module on both i386 and amd64. 376 37720130821: 378 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 379 Thus "device padlock_rng" and "device rdrand_rng" should be 380 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 381 38220130813: 383 WITH_ICONV has been split into two feature sets. WITH_ICONV now 384 enables just the iconv* functionality and is now on by default. 385 WITH_LIBICONV_COMPAT enables the libiconv api and link time 386 compatability. Set WITHOUT_ICONV to build the old way. 387 If you have been using WITH_ICONV before, you will very likely 388 need to turn on WITH_LIBICONV_COMPAT. 389 39020130806: 391 INVARIANTS option now enables DEBUG for code with OpenSolaris and 392 Illumos origin, including ZFS. If you have INVARIANTS in your 393 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 394 explicitly. 395 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 396 locks if WITNESS option was set. Because that generated a lot of 397 witness(9) reports and all of them were believed to be false 398 positives, this is no longer done. New option OPENSOLARIS_WITNESS 399 can be used to achieve the previous behavior. 400 40120130806: 402 Timer values in IPv6 data structures now use time_uptime instead 403 of time_second. Although this is not a user-visible functional 404 change, userland utilities which directly use them---ndp(8), 405 rtadvd(8), and rtsold(8) in the base system---need to be updated 406 to r253970 or later. 407 40820130802: 409 find -delete can now delete the pathnames given as arguments, 410 instead of only files found below them or if the pathname did 411 not contain any slashes. Formerly, the following error message 412 would result: 413 414 find: -delete: <path>: relative path potentially not safe 415 416 Deleting the pathnames given as arguments can be prevented 417 without error messages using -mindepth 1 or by changing 418 directory and passing "." as argument to find. This works in the 419 old as well as the new version of find. 420 42120130726: 422 Behavior of devfs rules path matching has been changed. 423 Pattern is now always matched against fully qualified devfs 424 path and slash characters must be explicitly matched by 425 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 426 subdirectories must be reviewed. 427 42820130716: 429 The default ARM ABI has changed to the ARM EABI. The old ABI is 430 incompatible with the ARM EABI and all programs and modules will 431 need to be rebuilt to work with a new kernel. 432 433 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 434 435 NOTE: Support for the old ABI will be removed in the future and 436 users are advised to upgrade. 437 43820130709: 439 pkg_install has been disconnected from the build if you really need it 440 you should add WITH_PKGTOOLS in your src.conf(5). 441 44220130709: 443 Most of network statistics structures were changed to be able 444 keep 64-bits counters. Thus all tools, that work with networking 445 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 446 44720130629: 448 Fix targets that run multiple make's to use && rather than ; 449 so that subsequent steps depend on success of previous. 450 451 NOTE: if building 'universe' with -j* on stable/8 or stable/9 452 it would be better to start the build using bmake, to avoid 453 overloading the machine. 454 45520130618: 456 Fix a bug that allowed a tracing process (e.g. gdb) to write 457 to a memory-mapped file in the traced process's address space 458 even if neither the traced process nor the tracing process had 459 write access to that file. 460 46120130615: 462 CVS has been removed from the base system. An exact copy 463 of the code is available from the devel/cvs port. 464 46520130613: 466 Some people report the following error after the switch to bmake: 467 468 make: illegal option -- J 469 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 470 ... 471 *** [buildworld] Error code 2 472 473 this likely due to an old instance of make in 474 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 475 which src/Makefile will use that blindly, if it exists, so if 476 you see the above error: 477 478 rm -rf `make -V MAKEPATH` 479 480 should resolve it. 481 48220130516: 483 Use bmake by default. 484 Whereas before one could choose to build with bmake via 485 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 486 make. The goal is to remove these knobs for 10-RELEASE. 487 488 It is worth noting that bmake (like gmake) treats the command 489 line as the unit of failure, rather than statements within the 490 command line. Thus '(cd some/where && dosomething)' is safer 491 than 'cd some/where; dosomething'. The '()' allows consistent 492 behavior in parallel build. 493 49420130429: 495 Fix a bug that allows NFS clients to issue READDIR on files. 496 49720130426: 498 The WITHOUT_IDEA option has been removed because 499 the IDEA patent expired. 500 50120130426: 502 The sysctl which controls TRIM support under ZFS has been renamed 503 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 504 enabled by default. 505 50620130425: 507 The mergemaster command now uses the default MAKEOBJDIRPREFIX 508 rather than creating it's own in the temporary directory in 509 order allow access to bootstrapped versions of tools such as 510 install and mtree. When upgrading from version of FreeBSD where 511 the install command does not support -l, you will need to 512 install a new mergemaster command if mergemaster -p is required. 513 This can be accomplished with the command (cd src/usr.sbin/mergemaster 514 && make install). 515 51620130404: 517 Legacy ATA stack, disabled and replaced by new CAM-based one since 518 FreeBSD 9.0, completely removed from the sources. Kernel modules 519 atadisk and atapi*, user-level tools atacontrol and burncd are 520 removed. Kernel option `options ATA_CAM` is now permanently enabled 521 and removed. 522 52320130319: 524 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 525 and socketpair(2). Software, in particular Kerberos, may 526 automatically detect and use these during building. The resulting 527 binaries will not work on older kernels. 528 52920130308: 530 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 531 information, see the respective 20130304 entry). 532 53320130304: 534 Recent commits to callout(9) changed the size of struct callout, 535 so the KBI is probably heavily disturbed. Also, some functions 536 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 537 by macros. Every kernel module using it won't load, so rebuild 538 is requested. 539 540 The ctl device has been re-enabled in GENERIC for i386 and amd64, 541 but does not initialize by default (because of the new CTL_DISABLE 542 option) to save memory. To re-enable it, remove the CTL_DISABLE 543 option from the kernel config file or set kern.cam.ctl.disable=0 544 in /boot/loader.conf. 545 54620130301: 547 The ctl device has been disabled in GENERIC for i386 and amd64. 548 This was done due to the extra memory being allocated at system 549 initialisation time by the ctl driver which was only used if 550 a CAM target device was created. This makes a FreeBSD system 551 unusable on 128MB or less of RAM. 552 55320130208: 554 A new compression method (lz4) has been merged to -HEAD. Please 555 refer to zpool-features(7) for more information. 556 557 Please refer to the "ZFS notes" section of this file for information 558 on upgrading boot ZFS pools. 559 56020130129: 561 A BSD-licensed patch(1) variant has been added and is installed 562 as bsdpatch, being the GNU version the default patch. 563 To inverse the logic and use the BSD-licensed one as default, 564 while having the GNU version installed as gnupatch, rebuild 565 and install world with the WITH_BSD_PATCH knob set. 566 56720130121: 568 Due to the use of the new -l option to install(1) during build 569 and install, you must take care not to directly set the INSTALL 570 make variable in your /etc/make.conf, /etc/src.conf, or on the 571 command line. If you wish to use the -C flag for all installs 572 you may be able to add INSTALL+=-C to /etc/make.conf or 573 /etc/src.conf. 574 57520130118: 576 The install(1) option -M has changed meaning and now takes an 577 argument that is a file or path to append logs to. In the 578 unlikely event that -M was the last option on the command line 579 and the command line contained at least two files and a target 580 directory the first file will have logs appended to it. The -M 581 option served little practical purpose in the last decade so its 582 use is expected to be extremely rare. 583 58420121223: 585 After switching to Clang as the default compiler some users of ZFS 586 on i386 systems started to experience stack overflow kernel panics. 587 Please consider using 'options KSTACK_PAGES=4' in such configurations. 588 58920121222: 590 GEOM_LABEL now mangles label names read from file system metadata. 591 Mangling affect labels containing spaces, non-printable characters, 592 '%' or '"'. Device names in /etc/fstab and other places may need to 593 be updated. 594 59520121217: 596 By default, only the 10 most recent kernel dumps will be saved. To 597 restore the previous behaviour (no limit on the number of kernel dumps 598 stored in the dump directory) add the following line to /etc/rc.conf: 599 600 savecore_flags="" 601 60220121201: 603 With the addition of auditdistd(8), a new auditdistd user is now 604 required during installworld. "mergemaster -p" can be used to 605 add the user prior to installworld, as documented in the handbook. 606 60720121117: 608 The sin6_scope_id member variable in struct sockaddr_in6 is now 609 filled by the kernel before passing the structure to the userland via 610 sysctl or routing socket. This means the KAME-specific embedded scope 611 id in sin6_addr.s6_addr[2] is always cleared in userland application. 612 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 613 __FreeBSD_version is bumped to 1000025. 614 61520121105: 616 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 617 This means that the world and kernel will be compiled with clang 618 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 619 and /usr/bin/cpp. To disable this behavior and revert to building 620 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 621 of current may need to bootstrap WITHOUT_CLANG first if the clang 622 build fails (its compatibility window doesn't extend to the 9 stable 623 branch point). 624 62520121102: 626 The IPFIREWALL_FORWARD kernel option has been removed. Its 627 functionality now turned on by default. 628 62920121023: 630 The ZERO_COPY_SOCKET kernel option has been removed and 631 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 632 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 633 mechanism which is not safe and may result in kernel crashes. 634 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 635 driver supports disposeable external page sized mbuf storage. 636 Proper replacements for both zero-copy mechanisms are under 637 consideration and will eventually lead to complete removal 638 of the two kernel options. 639 64020121023: 641 The IPv4 network stack has been converted to network byte 642 order. The following modules need to be recompiled together 643 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 644 pf(4), ipfw(4), ng_ipfw(4), stf(4). 645 64620121022: 647 Support for non-MPSAFE filesystems was removed from VFS. The 648 VFS_VERSION was bumped, all filesystem modules shall be 649 recompiled. 650 65120121018: 652 All the non-MPSAFE filesystems have been disconnected from 653 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 654 portalfs, smbfs, xfs. 655 65620121016: 657 The interface cloning API and ABI has changed. The following 658 modules need to be recompiled together with kernel: 659 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 660 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 661 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 662 66320121015: 664 The sdhci driver was split in two parts: sdhci (generic SD Host 665 Controller logic) and sdhci_pci (actual hardware driver). 666 No kernel config modifications are required, but if you 667 load sdhc as a module you must switch to sdhci_pci instead. 668 66920121014: 670 Import the FUSE kernel and userland support into base system. 671 67220121013: 673 The GNU sort(1) program has been removed since the BSD-licensed 674 sort(1) has been the default for quite some time and no serious 675 problems have been reported. The corresponding WITH_GNU_SORT 676 knob has also gone. 677 67820121006: 679 The pfil(9) API/ABI for AF_INET family has been changed. Packet 680 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 681 with new kernel. 682 68320121001: 684 The net80211(4) ABI has been changed to allow for improved driver 685 PS-POLL and power-save support. All wireless drivers need to be 686 recompiled to work with the new kernel. 687 68820120913: 689 The random(4) support for the VIA hardware random number 690 generator (`PADLOCK') is no longer enabled unconditionally. 691 Add the padlock_rng device in the custom kernel config if 692 needed. The GENERIC kernels on i386 and amd64 do include the 693 device, so the change only affects the custom kernel 694 configurations. 695 69620120908: 697 The pf(4) packet filter ABI has been changed. pfctl(8) and 698 snmp_pf module need to be recompiled to work with new kernel. 699 70020120828: 701 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 702 to -HEAD. Pools that have empty_bpobj in active state can not be 703 imported read-write with ZFS implementations that do not support 704 this feature. For more information read the zpool-features(5) 705 manual page. 706 70720120727: 708 The sparc64 ZFS loader has been changed to no longer try to auto- 709 detect ZFS providers based on diskN aliases but now requires these 710 to be explicitly listed in the OFW boot-device environment variable. 711 71220120712: 713 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 714 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 715 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 716 71720120712: 718 The following sysctls and tunables have been renamed for consistency 719 with other variables: 720 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 721 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 722 72320120628: 724 The sort utility has been replaced with BSD sort. For now, GNU sort 725 is also available as "gnusort" or the default can be set back to 726 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 727 installed as "bsdsort". 728 72920120611: 730 A new version of ZFS (pool version 5000) has been merged to -HEAD. 731 Starting with this version the old system of ZFS pool versioning 732 is superseded by "feature flags". This concept enables forward 733 compatibility against certain future changes in functionality of ZFS 734 pools. The first read-only compatible "feature flag" for ZFS pools 735 is named "com.delphix:async_destroy". For more information 736 read the new zpool-features(5) manual page. 737 Please refer to the "ZFS notes" section of this file for information 738 on upgrading boot ZFS pools. 739 74020120417: 741 The malloc(3) implementation embedded in libc now uses sources imported 742 as contrib/jemalloc. The most disruptive API change is to 743 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 744 delete it prior to installworld, and optionally re-create it using the 745 new format after rebooting. See malloc.conf(5) for details 746 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 747 NAMESPACE section). 748 74920120328: 750 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 751 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 752 now spelled mips. This is to aid compatibility with third-party 753 software that expects this naming scheme in uname(3). Little-endian 754 settings are unchanged. If you are updating a big-endian mips64 machine 755 from before this change, you may need to set MACHINE_ARCH=mips64 in 756 your environment before the new build system will recognize your machine. 757 75820120306: 759 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 760 platforms. 761 76220120229: 763 Now unix domain sockets behave "as expected" on nullfs(5). Previously 764 nullfs(5) did not pass through all behaviours to the underlying layer, 765 as a result if we bound to a socket on the lower layer we could connect 766 only to the lower path; if we bound to the upper layer we could connect 767 only to the upper path. The new behavior is one can connect to both the 768 lower and the upper paths regardless what layer path one binds to. 769 77020120211: 771 The getifaddrs upgrade path broken with 20111215 has been restored. 772 If you have upgraded in between 20111215 and 20120209 you need to 773 recompile libc again with your kernel. You still need to recompile 774 world to be able to configure CARP but this restriction already 775 comes from 20111215. 776 77720120114: 778 The set_rcvar() function has been removed from /etc/rc.subr. All 779 base and ports rc.d scripts have been updated, so if you have a 780 port installed with a script in /usr/local/etc/rc.d you can either 781 hand-edit the rcvar= line, or reinstall the port. 782 783 An easy way to handle the mass-update of /etc/rc.d: 784 rm /etc/rc.d/* && mergemaster -i 785 78620120109: 787 panic(9) now stops other CPUs in the SMP systems, disables interrupts 788 on the current CPU and prevents other threads from running. 789 This behavior can be reverted using the kern.stop_scheduler_on_panic 790 tunable/sysctl. 791 The new behavior can be incompatible with kern.sync_on_panic. 792 79320111215: 794 The carp(4) facility has been changed significantly. Configuration 795 of the CARP protocol via ifconfig(8) has changed, as well as format 796 of CARP events submitted to devd(8) has changed. See manual pages 797 for more information. The arpbalance feature of carp(4) is currently 798 not supported anymore. 799 800 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 801 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 802 need to be recompiled. 803 80420111122: 805 The acpi_wmi(4) status device /dev/wmistat has been renamed to 806 /dev/wmistat0. 807 80820111108: 809 The option VFS_ALLOW_NONMPSAFE option has been added in order to 810 explicitely support non-MPSAFE filesystems. 811 It is on by default for all supported platform at this present 812 time. 813 81420111101: 815 The broken amd(4) driver has been replaced with esp(4) in the amd64, 816 i386 and pc98 GENERIC kernel configuration files. 817 81820110930: 819 sysinstall has been removed 820 82120110923: 822 The stable/9 branch created in subversion. This corresponds to the 823 RELENG_9 branch in CVS. 824 82520110913: 826 This commit modifies vfs_register() so that it uses a hash 827 calculation to set vfc_typenum, which is enabled by default. 828 The first time a system is booted after this change, the 829 vfc_typenum values will change for all file systems. The 830 main effect of this is a change to the NFS server file handles 831 for file systems that use vfc_typenum in their fsid, such as ZFS. 832 It will, however, prevent vfc_typenum from changing when file 833 systems are loaded in a different order for subsequent reboots. 834 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 835 until you are ready to remount all NFS clients after a reboot. 836 83720110828: 838 Bump the shared library version numbers for libraries that 839 do not use symbol versioning, have changed the ABI compared 840 to stable/8 and which shared library version was not bumped. 841 Done as part of 9.0-RELEASE cycle. 842 84320110815: 844 During the merge of Capsicum features, the fget(9) KPI was modified. 845 This may require the rebuilding of out-of-tree device drivers -- 846 issues have been reported specifically with the nVidia device driver. 847 __FreeBSD_version is bumped to 900041. 848 849 Also, there is a period between 20110811 and 20110814 where the 850 special devices /dev/{stdin,stdout,stderr} did not work correctly. 851 Building world from a kernel during that window may not work. 852 85320110628: 854 The packet filter (pf) code has been updated to OpenBSD 4.5. 855 You need to update userland tools to be in sync with kernel. 856 This update breaks backward compatibility with earlier pfsync(4) 857 versions. Care must be taken when updating redundant firewall setups. 858 85920110608: 860 The following sysctls and tunables are retired on x86 platforms: 861 machdep.hlt_cpus 862 machdep.hlt_logical_cpus 863 The following sysctl is retired: 864 machdep.hyperthreading_allowed 865 The sysctls were supposed to provide a way to dynamically offline and 866 online selected CPUs on x86 platforms, but the implementation has not 867 been reliable especially with SCHED_ULE scheduler. 868 machdep.hyperthreading_allowed tunable is still available to ignore 869 hyperthreading CPUs at OS level. 870 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 871 where X is an APIC ID of a CPU. Be advised, though, that disabling 872 CPUs in non-uniform fashion will result in non-uniform topology and 873 may lead to sub-optimal system performance with SCHED_ULE, which is 874 a default scheduler. 875 87620110607: 877 cpumask_t type is retired and cpuset_t is used in order to describe 878 a mask of CPUs. 879 88020110531: 881 Changes to ifconfig(8) for dynamic address family detection mandate 882 that you are running a kernel of 20110525 or later. Make sure to 883 follow the update procedure to boot a new kernel before installing 884 world. 885 88620110513: 887 Support for sun4v architecture is officially dropped 888 88920110503: 890 Several KPI breaking changes have been committed to the mii(4) layer, 891 the PHY drivers and consequently some Ethernet drivers using mii(4). 892 This means that miibus.ko and the modules of the affected Ethernet 893 drivers need to be recompiled. 894 895 Note to kernel developers: Given that the OUI bit reversion problem 896 was fixed as part of these changes all mii(4) commits related to OUIs, 897 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 898 handling, no longer can be merged verbatim to stable/8 and previous 899 branches. 900 90120110430: 902 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 903 into their kernel configurations along with 'device pci'. 904 90520110427: 906 The default NFS client is now the new NFS client, so fstype "newnfs" 907 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 908 Although mounts via fstype "nfs" will usually work without userland 909 changes, it is recommended that the mount(8) and mount_nfs(8) 910 commands be rebuilt from sources and that a link to mount_nfs called 911 mount_oldnfs be created. The new client is compiled into the 912 kernel with "options NFSCL" and this is needed for diskless root 913 file systems. The GENERIC kernel configs have been changed to use 914 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 915 To use the regular/old client, you can "mount -t oldnfs ...". For 916 a diskless root file system, you must also include a line like: 917 918 vfs.root.mountfrom="oldnfs:" 919 920 in the boot/loader.conf on the root fs on the NFS server to make 921 a diskless root fs use the old client. 922 92320110424: 924 The GENERIC kernels for all architectures now default to the new 925 CAM-based ATA stack. It means that all legacy ATA drivers were 926 removed and replaced by respective CAM drivers. If you are using 927 ATA device names in /etc/fstab or other places, make sure to update 928 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 929 where 'Y's are the sequential numbers starting from zero for each type 930 in order of detection, unless configured otherwise with tunables, 931 see cam(4)). There will be symbolic links created in /dev/ to map 932 old adX devices to the respective adaY. They should provide basic 933 compatibility for file systems mounting in most cases, but they do 934 not support old user-level APIs and do not have respective providers 935 in GEOM. Consider using updated management tools with new device names. 936 937 It is possible to load devices ahci, ata, siis and mvs as modules, 938 but option ATA_CAM should remain in kernel configuration to make ata 939 module work as CAM driver supporting legacy ATA controllers. Device ata 940 still can be used in modular fashion (atacore + ...). Modules atadisk 941 and atapi* are not used and won't affect operation in ATA_CAM mode. 942 Note that to use CAM-based ATA kernel should include CAM devices 943 scbus, pass, da (or explicitly ada), cd and optionally others. All of 944 them are parts of the cam module. 945 946 ataraid(4) functionality is now supported by the RAID GEOM class. 947 To use it you can load geom_raid kernel module and use graid(8) tool 948 for management. Instead of /dev/arX device names, use /dev/raid/rX. 949 950 No kernel config options or code have been removed, so if a problem 951 arises, please report it and optionally revert to the old ATA stack. 952 In order to do it you can remove from the kernel config: 953 options ATA_CAM 954 device ahci 955 device mvs 956 device siis 957 , and instead add back: 958 device atadisk # ATA disk drives 959 device ataraid # ATA RAID drives 960 device atapicd # ATAPI CDROM drives 961 device atapifd # ATAPI floppy drives 962 device atapist # ATAPI tape drives 963 96420110423: 965 The default NFS server has been changed to the new server, which 966 was referred to as the experimental server. If you need to switch 967 back to the old NFS server, you must now put the "-o" option on 968 both the mountd and nfsd commands. This can be done using the 969 mountd_flags and nfs_server_flags rc.conf variables until an 970 update to the rc scripts is committed, which is coming soon. 971 97220110418: 973 The GNU Objective-C runtime library (libobjc), and other Objective-C 974 related components have been removed from the base system. If you 975 require an Objective-C library, please use one of the available ports. 976 97720110331: 978 ath(4) has been split into bus- and device- modules. if_ath contains 979 the HAL, the TX rate control and the network device code. if_ath_pci 980 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 981 contains the AHB glue. Users need to load both if_ath_pci and if_ath 982 in order to use ath on everything else. 983 984 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 985 need to load if_ath and if_ath_pci for ath(4) operation. 986 98720110314: 988 As part of the replacement of sysinstall, the process of building 989 release media has changed significantly. For details, please re-read 990 release(7), which has been updated to reflect the new build process. 991 99220110218: 993 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 994 is the last available version under GPLv2. It brings a number of new 995 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 996 4.1 and SSE 4.2), better support for powerpc64, a number of new 997 directives, and lots of other small improvements. See the ChangeLog 998 file in contrib/binutils for the full details. 999 100020110218: 1001 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1002 compliant, and will now use half of hash for authentication. 1003 This will break interoperability with all stacks (including all 1004 actual FreeBSD versions) who implement 1005 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1006 authentication). 1007 The only workaround with such peers is to use another HMAC 1008 algorithm for IPsec ("phase 2") authentication. 1009 101020110207: 1011 Remove the uio_yield prototype and symbol. This function has 1012 been misnamed since it was introduced and should not be 1013 globally exposed with this name. The equivalent functionality 1014 is now available using kern_yield(curthread->td_user_pri). 1015 The function remains undocumented. 1016 101720110112: 1018 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1019 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1020 for scalar sysctls is defined but disabled. Code that needs 1021 UQUAD to pass the type checking that must compile on older 1022 systems where the define is not present can check against 1023 __FreeBSD_version >= 900030. 1024 1025 The system dialog(1) has been replaced with a new version previously 1026 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1027 with the previous version, but the libdialog associated with it has 1028 a largely incompatible API. As such, the original version of libdialog 1029 will be kept temporarily as libodialog, until its base system consumers 1030 are replaced or updated. Bump __FreeBSD_version to 900030. 1031 103220110103: 1033 If you are trying to run make universe on a -stable system, and you get 1034 the following warning: 1035 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1036 unknown. config(8) likely too old." 1037 or something similar to it, then you must upgrade your -stable system 1038 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1039 stable/8) or build the config from the latest stable/8 branch and 1040 install it on your system. 1041 1042 Prior to this date, building a current universe on 8-stable system from 1043 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1044 error in the first kernel build phase. A new config on those old 1045 systems will fix that problem for older versions of -current. 1046 104720101228: 1048 The TCP stack has been modified to allow Khelp modules to interact with 1049 it via helper hook points and store per-connection data in the TCP 1050 control block. Bump __FreeBSD_version to 900029. User space tools that 1051 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1052 be recompiled. 1053 105420101114: 1055 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1056 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1057 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1058 to take advantage of it instead of using custom implementations. This 1059 means that these drivers now no longer unconditionally advertise 1060 support for flow control but only do so if flow control is a selected 1061 media option. This was implemented in the generic support that way in 1062 order to allow flow control to be switched on and off via ifconfig(8) 1063 with the PHY specific default to typically off in order to protect 1064 from unwanted effects. Consequently, if you used flow control with 1065 one of the above mentioned drivers you now need to explicitly enable 1066 it, for example via: 1067 ifconfig bge0 media auto mediaopt flowcontrol 1068 1069 Along with the above mentioned changes generic support for setting 1070 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1071 e1000phy(4) as well as ip1000phy(4) have been converted to take 1072 advantage of it. This means that these drivers now no longer take the 1073 link0 parameter for selecting master mode but the master media option 1074 has to be used instead, for example like in the following: 1075 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1076 1077 Selection of master mode now is also available with all other PHY 1078 drivers supporting 1000baseT. 1079 108020101111: 1081 The TCP stack has received a significant update to add support for 1082 modularised congestion control and generally improve the clarity of 1083 congestion control decisions. Bump __FreeBSD_version to 900025. User 1084 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1085 sockstat) need to be recompiled. 1086 108720101002: 1088 The man(1) utility has been replaced by a new version that no longer 1089 uses /etc/manpath.config. Please consult man.conf(5) for how to 1090 migrate local entries to the new format. 1091 109220100928: 1093 The copyright strings printed by login(1) and sshd(8) at the time of a 1094 new connection have been removed to follow other operating systems and 1095 upstream sshd. 1096 109720100915: 1098 A workaround for a fixed ld bug has been removed in kernel code, 1099 so make sure that your system ld is built from sources after 1100 revision 210245 from 2010-07-19 (r211583 if building head kernel 1101 on stable/8, r211584 for stable/7; both from 2010-08-21). 1102 A symptom of incorrect ld version is different addresses for 1103 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1104 110520100913: 1106 The $ipv6_prefer variable in rc.conf(5) has been split into 1107 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1108 1109 The $ip6addrctl_policy is a variable to choose a pre-defined 1110 address selection policy set by ip6addrctl(8). A value 1111 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1112 default is "AUTO". 1113 1114 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1115 flag (see an entry of 20090926) is set on an interface with no 1116 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1117 security reason. If you want IPv6 link-local address on all 1118 interfaces by default, set this to "YES". 1119 1120 The old ipv6_prefer="YES" is equivalent to 1121 ipv6_activate_all_interfaces="YES" and 1122 ip6addrctl_policy="ipv6_prefer". 1123 112420100913: 1125 DTrace has grown support for userland tracing. Due to this, DTrace is 1126 now i386 and amd64 only. 1127 dtruss(1) is now installed by default on those systems and a new 1128 kernel module is needed for userland tracing: fasttrap. 1129 No changes to your kernel config file are necessary to enable 1130 userland tracing, but you might consider adding 'STRIP=' and 1131 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1132 to have informative userland stack traces in DTrace (ustack). 1133 113420100725: 1135 The acpi_aiboost(4) driver has been removed in favor of the new 1136 aibs(4) driver. You should update your kernel configuration file. 1137 113820100722: 1139 BSD grep has been imported to the base system and it is built by 1140 default. It is completely BSD licensed, highly GNU-compatible, uses 1141 less memory than its GNU counterpart and has a small codebase. 1142 However, it is slower than its GNU counterpart, which is mostly 1143 noticeable for larger searches, for smaller ones it is measurable 1144 but not significant. The reason is complex, the most important factor 1145 is that we lack a modern and efficient regex library and GNU 1146 overcomes this by optimizing the searches internally. Future work 1147 on improving the regex performance is planned, for the meantime, 1148 users that need better performance, can build GNU grep instead by 1149 setting the WITH_GNU_GREP knob. 1150 115120100713: 1152 Due to the import of powerpc64 support, all existing powerpc kernel 1153 configuration files must be updated with a machine directive like this: 1154 machine powerpc powerpc 1155 1156 In addition, an updated config(8) is required to build powerpc kernels 1157 after this change. 1158 115920100713: 1160 A new version of ZFS (version 15) has been merged to -HEAD. 1161 This version uses a python library for the following subcommands: 1162 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1163 For full functionality of these commands the following port must 1164 be installed: sysutils/py-zfs 1165 116620100429: 1167 'vm_page's are now hashed by physical address to an array of mutexes. 1168 Currently this is only used to serialize access to hold_count. Over 1169 time the page queue mutex will be peeled away. This changes the size 1170 of pmap on every architecture. And requires all callers of vm_page_hold 1171 and vm_page_unhold to be updated. 1172 117320100402: 1174 WITH_CTF can now be specified in src.conf (not recommended, there 1175 are some problems with static executables), make.conf (would also 1176 affect ports which do not use GNU make and do not override the 1177 compile targets) or in the kernel config (via "makeoptions 1178 WITH_CTF=yes"). 1179 When WITH_CTF was specified there before this was silently ignored, 1180 so make sure that WITH_CTF is not used in places which could lead 1181 to unwanted behavior. 1182 118320100311: 1184 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1185 to allow 32-bit compatibility on non-x86 platforms. All kernel 1186 configurations on amd64 and ia64 platforms using these options must 1187 be modified accordingly. 1188 118920100113: 1190 The utmp user accounting database has been replaced with utmpx, 1191 the user accounting interface standardized by POSIX. 1192 Unfortunately the semantics of utmp and utmpx don't match, 1193 making it practically impossible to support both interfaces. 1194 The user accounting database is used by tools like finger(1), 1195 last(1), talk(1), w(1) and ac(8). 1196 1197 All applications in the base system use utmpx. This means only 1198 local binaries (e.g. from the ports tree) may still use these 1199 utmp database files. These applications must be rebuilt to make 1200 use of utmpx. 1201 1202 After the system has been upgraded, it is safe to remove the old 1203 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1204 assuming their contents is of no importance anymore. Old wtmp 1205 databases can only be used by last(1) and ac(8) after they have 1206 been converted to the new format using wtmpcvt(1). 1207 120820100108: 1209 Introduce the kernel thread "deadlock resolver" (which can be enabled 1210 via the DEADLKRES option, see NOTES for more details) and the 1211 sleepq_type() function for sleepqueues. 1212 121320091202: 1214 The rc.firewall and rc.firewall6 were unified, and 1215 rc.firewall6 and rc.d/ip6fw were removed. 1216 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1217 variables are obsoleted. Instead, the following new rc 1218 variables are added to rc.d/ipfw: 1219 1220 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1221 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1222 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1223 1224 The meanings correspond to the relevant IPv4 variables. 1225 122620091125: 1227 8.0-RELEASE. 1228 122920091113: 1230 The default terminal emulation for syscons(4) has been changed 1231 from cons25 to xterm on all platforms except pc98. This means 1232 that the /etc/ttys file needs to be updated to ensure correct 1233 operation of applications on the console. 1234 1235 The terminal emulation style can be toggled per window by using 1236 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1237 options can be used to change the compile-time default back to 1238 cons25. 1239 1240 To prevent graphical artifacts, make sure the TERM environment 1241 variable is set to match the terminal emulation that is being 1242 performed by syscons(4). 1243 124420091109: 1245 The layout of the structure ieee80211req_scan_result has changed. 1246 Applications that require wireless scan results (e.g. ifconfig(8)) 1247 from net80211 need to be recompiled. 1248 1249 Applications such as wpa_supplicant(8) may require a full world 1250 build without using NO_CLEAN in order to get synchronized with the 1251 new structure. 1252 125320091025: 1254 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1255 There's one kernel module for each firmware. Adding "device iwnfw" 1256 to the kernel configuration file means including all three firmware 1257 images inside the kernel. If you want to include just the one for 1258 your wireless card, use the devices iwn4965fw, iwn5000fw or 1259 iwn5150fw. 1260 126120090926: 1262 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1263 into rc.d/netif. The changes are the following: 1264 1265 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1266 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1267 Note that both variables need the "inet6" keyword at the head. 1268 1269 Do not set $ipv6_network_interfaces manually if you do not 1270 understand what you are doing. It is not needed in most cases. 1271 1272 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1273 they are obsolete. 1274 1275 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1276 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1277 1278 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1279 all configured interfaces have "inet6 accept_rtadv" in the 1280 $ifconfig_IF_ipv6. These are for backward compatibility. 1281 1282 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1283 functionality of interfaces with no corresponding 1284 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1285 and the default address selection policy of ip6addrctl(8) 1286 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1287 Note that if you want to configure IPv6 functionality on the 1288 disabled interfaces after boot, first you need to clear the flag by 1289 using ifconfig(8) like: 1290 1291 ifconfig em0 inet6 -ifdisabled 1292 1293 If YES, the default address selection policy is set as 1294 IPv6-preferred. 1295 1296 The default value of $ipv6_prefer is NO. 1297 1298 4. If your system need to receive Router Advertisement messages, 1299 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1300 scripts automatically invoke rtsol(8) when the interface becomes 1301 UP. The Router Advertisement messages are used for SLAAC 1302 (State-Less Address AutoConfiguration). 1303 130420090922: 1305 802.11s D3.03 support was committed. This is incompatible with the 1306 previous code, which was based on D3.0. 1307 130820090912: 1309 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1310 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1311 control whether accepting Router Advertisement messages or not. 1312 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1313 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1314 The ifconfig(8) utility now supports these flags. 1315 131620090910: 1317 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1318 mount(8) and -a option for df(1) to see them. 1319 132020090825: 1321 The old tunable hw.bus.devctl_disable has been superseded by 1322 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1323 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1324 is 1000. 1325 132620090813: 1327 Remove the option STOP_NMI. The default action is now to use NMI only 1328 for KDB via the newly introduced function stop_cpus_hard() and 1329 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1330 133120090803: 1332 The stable/8 branch created in subversion. This corresponds to the 1333 RELENG_8 branch in CVS. 1334 133520090719: 1336 Bump the shared library version numbers for all libraries that do not 1337 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1338 __FreeBSD_version to 800105. 1339 134020090714: 1341 Due to changes in the implementation of virtual network stack support, 1342 all network-related kernel modules must be recompiled. As this change 1343 breaks the ABI, bump __FreeBSD_version to 800104. 1344 134520090713: 1346 The TOE interface to the TCP syncache has been modified to remove 1347 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1348 The cxgb driver is the only TOE consumer affected by this change, and 1349 needs to be recompiled along with the kernel. As this change breaks 1350 the ABI, bump __FreeBSD_version to 800103. 1351 135220090712: 1353 Padding has been added to struct tcpcb, sackhint and tcpstat in 1354 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1355 maintaining the ABI. However, this change breaks the ABI, so bump 1356 __FreeBSD_version to 800102. User space tools that rely on the size of 1357 any of these structs (e.g. sockstat) need to be recompiled. 1358 135920090630: 1360 The NFS_LEGACYRPC option has been removed along with the old kernel 1361 RPC implementation that this option selected. Kernel configurations 1362 may need to be adjusted. 1363 136420090629: 1365 The network interface device nodes at /dev/net/<interface> have been 1366 removed. All ioctl operations can be performed the normal way using 1367 routing sockets. The kqueue functionality can generally be replaced 1368 with routing sockets. 1369 137020090628: 1371 The documentation from the FreeBSD Documentation Project (Handbook, 1372 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1373 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1374 137520090624: 1376 The ABI of various structures related to the SYSV IPC API have been 1377 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1378 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1379 800100. 1380 138120090622: 1382 Layout of struct vnet has changed as routing related variables were 1383 moved to their own Vimage module. Modules need to be recompiled. Bump 1384 __FreeBSD_version to 800099. 1385 138620090619: 1387 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1388 respectively. As long as no more than 16 groups per process are used, 1389 no changes should be visible. When more than 16 groups are used, old 1390 binaries may fail if they call getgroups() or getgrouplist() with 1391 statically sized storage. Recompiling will work around this, but 1392 applications should be modified to use dynamically allocated storage 1393 for group arrays as POSIX.1-2008 does not cap an implementation's 1394 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1395 1396 NFS and portalfs mounts may also be affected as the list of groups is 1397 truncated to 16. Users of NFS who use more than 16 groups, should 1398 take care that negative group permissions are not used on the exported 1399 file systems as they will not be reliable unless a GSSAPI based 1400 authentication method is used. 1401 140220090616: 1403 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1404 option compiles in the support for adaptive spinning for lockmgrs 1405 which want to enable it. The lockinit() function now accepts the flag 1406 LK_ADAPTIVE in order to make the lock object subject to adaptive 1407 spinning when both held in write and read mode. 1408 140920090613: 1410 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1411 changed. User applications that use this ioctl need to be rebuilt. 1412 141320090611: 1414 The layout of struct thread has changed. Kernel and modules need to 1415 be rebuilt. 1416 141720090608: 1418 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1419 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1420 142120090602: 1422 window(1) has been removed from the base system. It can now be 1423 installed from ports. The port is called misc/window. 1424 142520090601: 1426 The way we are storing and accessing `routing table' entries has 1427 changed. Programs reading the FIB, like netstat, need to be 1428 re-compiled. 1429 143020090601: 1431 A new netisr implementation has been added for FreeBSD 8. Network 1432 file system modules, such as igmp, ipdivert, and others, should be 1433 rebuilt. 1434 Bump __FreeBSD_version to 800096. 1435 143620090530: 1437 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1438 more valid. 1439 144020090530: 1441 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1442 Bump __FreeBSD_version to 800094. 1443 144420090529: 1445 Add mnt_xflag field to 'struct mount'. File system modules need to be 1446 rebuilt. 1447 Bump __FreeBSD_version to 800093. 1448 144920090528: 1450 The compiling option ADAPTIVE_SX has been retired while it has been 1451 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1452 The KPI for sx_init_flags() changes as accepting flags: 1453 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1454 been introduced in order to handle the reversed logic. 1455 Bump __FreeBSD_version to 800092. 1456 145720090527: 1458 Add support for hierarchical jails. Remove global securelevel. 1459 Bump __FreeBSD_version to 800091. 1460 146120090523: 1462 The layout of struct vnet_net has changed, therefore modules 1463 need to be rebuilt. 1464 Bump __FreeBSD_version to 800090. 1465 146620090523: 1467 The newly imported zic(8) produces a new format in the output. Please 1468 run tzsetup(8) to install the newly created data to /etc/localtime. 1469 147020090520: 1471 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1472 hw.usb.* and is now consistent again with previous releases. 1473 147420090520: 1475 802.11 monitor mode support was revised and driver api's were changed. 1476 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1477 of DLT_IEEE802_11. No user-visible data structures were changed but 1478 applications that use DLT_IEEE802_11 may require changes. 1479 Bump __FreeBSD_version to 800088. 1480 148120090430: 1482 The layout of the following structs has changed: sysctl_oid, 1483 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1484 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1485 panics may be experienced. World rebuild is required for 1486 correctly checking networking state from userland. 1487 Bump __FreeBSD_version to 800085. 1488 148920090429: 1490 MLDv2 and Source-Specific Multicast (SSM) have been merged 1491 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1492 The implementation of SSM within FreeBSD's IPv6 stack closely 1493 follows the IPv4 implementation. 1494 1495 For kernel developers: 1496 1497 * The most important changes are that the ip6_output() and 1498 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1499 and this lock has been downgraded to a non-recursive mutex. 1500 1501 * As with the changes to the IPv4 stack to support SSM, filtering 1502 of inbound multicast traffic must now be performed by transport 1503 protocols within the IPv6 stack. This does not apply to TCP and 1504 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1505 1506 * The KPIs used by IPv6 multicast are similar to those used by 1507 the IPv4 stack, with the following differences: 1508 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1509 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1510 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1511 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1512 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1513 for MLDv1 have an additional 'timer' argument which is used to 1514 jitter the initial membership report for the solicited-node 1515 multicast membership on-link. 1516 * This is not strictly needed for MLDv2, which already jitters 1517 its report transmissions. However, the 'timer' argument is 1518 preserved in case MLDv1 is active on the interface. 1519 1520 * The KAME linked-list based IPv6 membership implementation has 1521 been refactored to use a vector similar to that used by the IPv4 1522 stack. 1523 Code which maintains a list of its own multicast memberships 1524 internally, e.g. carp, has been updated to reflect the new 1525 semantics. 1526 1527 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1528 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1529 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1530 implementation constraint which needs to be addressed in HEAD. 1531 1532 For application developers: 1533 1534 * The changes are broadly similar to those made for the IPv4 1535 stack. 1536 1537 * The use of IPv4 and IPv6 multicast socket options on the same 1538 socket, using mapped addresses, HAS NOT been tested or supported. 1539 1540 * There are a number of issues with the implementation of various 1541 IPv6 multicast APIs which need to be resolved in the API surface 1542 before the implementation is fully compatible with KAME userland 1543 use, and these are mostly to do with interface index treatment. 1544 1545 * The literature available discusses the use of either the delta / ASM 1546 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1547 using setsourcefilter(3)/getsourcefilter(3). For more information 1548 please refer to RFC 3768, 'Socket Interface Extensions for 1549 Multicast Source Filters'. 1550 1551 * Applications which use the published RFC 3678 APIs should be fine. 1552 1553 For systems administrators: 1554 1555 * The mtest(8) utility has been refactored to support IPv6, in 1556 addition to IPv4. Interface addresses are no longer accepted 1557 as arguments, their names must be used instead. The utility 1558 will map the interface name to its first IPv4 address as 1559 returned by getifaddrs(3). 1560 1561 * The ifmcstat(8) utility has also been updated to print the MLDv2 1562 endpoint state and source filter lists via sysctl(3). 1563 1564 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1565 loopback of IPv6 multicast datagrams by default; it defaults to 1 1566 to preserve the existing behaviour. Disabling multicast loopback is 1567 recommended for optimal system performance. 1568 1569 * The IPv6 MROUTING code has been changed to examine this sysctl 1570 instead of attempting to perform a group lookup before looping 1571 back forwarded datagrams. 1572 1573 Bump __FreeBSD_version to 800084. 1574 157520090422: 1576 Implement low-level Bluetooth HCI API. 1577 Bump __FreeBSD_version to 800083. 1578 157920090419: 1580 The layout of struct malloc_type, used by modules to register new 1581 memory allocation types, has changed. Most modules will need to 1582 be rebuilt or panics may be experienced. 1583 Bump __FreeBSD_version to 800081. 1584 158520090415: 1586 Anticipate overflowing inp_flags - add inp_flags2. 1587 This changes most offsets in inpcb, so checking v4 connection 1588 state will require a world rebuild. 1589 Bump __FreeBSD_version to 800080. 1590 159120090415: 1592 Add an llentry to struct route and struct route_in6. Modules 1593 embedding a struct route will need to be recompiled. 1594 Bump __FreeBSD_version to 800079. 1595 159620090414: 1597 The size of rt_metrics_lite and by extension rtentry has changed. 1598 Networking administration apps will need to be recompiled. 1599 The route command now supports show as an alias for get, weighting 1600 of routes, sticky and nostick flags to alter the behavior of stateful 1601 load balancing. 1602 Bump __FreeBSD_version to 800078. 1603 160420090408: 1605 Do not use Giant for kbdmux(4) locking. This is wrong and 1606 apparently causing more problems than it solves. This will 1607 re-open the issue where interrupt handlers may race with 1608 kbdmux(4) in polling mode. Typical symptoms include (but 1609 not limited to) duplicated and/or missing characters when 1610 low level console functions (such as gets) are used while 1611 interrupts are enabled (for example geli password prompt, 1612 mountroot prompt etc.). Disabling kbdmux(4) may help. 1613 161420090407: 1615 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1616 kernel modules referencing any of the above need to be recompiled. 1617 Bump __FreeBSD_version to 800075. 1618 161920090320: 1620 GEOM_PART has become the default partition slicer for storage devices, 1621 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1622 introduces some changes: 1623 1624 MSDOS/EBR: the devices created from MSDOS extended partition entries 1625 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1626 to devices with offset-based names. fstabs may need to be modified. 1627 1628 BSD: the "geometry does not match label" warning is harmless in most 1629 cases but it points to problems in file system misalignment with 1630 disk geometry. The "c" partition is now implicit, covers the whole 1631 top-level drive and cannot be (mis)used by users. 1632 1633 General: Kernel dumps are now not allowed to be written to devices 1634 whose partition types indicate they are meant to be used for file 1635 systems (or, in case of MSDOS partitions, as something else than 1636 the "386BSD" type). 1637 1638 Most of these changes date approximately from 200812. 1639 164020090319: 1641 The uscanner(4) driver has been removed from the kernel. This follows 1642 Linux removing theirs in 2.6 and making libusb the default interface 1643 (supported by sane). 1644 164520090319: 1646 The multicast forwarding code has been cleaned up. netstat(1) 1647 only relies on KVM now for printing bandwidth upcall meters. 1648 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1649 ip6_mroute_mod respectively. The config(5) options for statically 1650 compiling this code remain the same, i.e. 'options MROUTING'. 1651 165220090315: 1653 Support for the IFF_NEEDSGIANT network interface flag has been 1654 removed, which means that non-MPSAFE network device drivers are no 1655 longer supported. In particular, if_ar, if_sr, and network device 1656 drivers from the old (legacy) USB stack can no longer be built or 1657 used. 1658 165920090313: 1660 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1661 a bunch of new language catalog files have also been added. 1662 This means that some common libc messages are now localized and 1663 they depend on the LC_MESSAGES environmental variable. 1664 166520090313: 1666 The k8temp(4) driver has been renamed to amdtemp(4) since 1667 support for Family 10 and Family 11 CPU families was added. 1668 166920090309: 1670 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1671 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1672 1673 For kernel developers, the most important changes are that the 1674 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1675 and this lock has been downgraded to a non-recursive mutex. 1676 1677 Transport protocols (UDP, Raw IP) are now responsible for filtering 1678 inbound multicast traffic according to group membership and source 1679 filters. The imo_multicast_filter() KPI exists for this purpose. 1680 Transports which do not use multicast (SCTP, TCP) already reject 1681 multicast by default. Forwarding and receive performance may improve 1682 as a mutex acquisition is no longer needed in the ip_input() 1683 low-level input path. in_addmulti() and in_delmulti() are shimmed 1684 to new KPIs which exist to support SSM in-kernel. 1685 1686 For application developers, it is recommended that loopback of 1687 multicast datagrams be disabled for best performance, as this 1688 will still cause the lock to be taken for each looped-back 1689 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1690 be tuned to 0 to disable loopback by default; it defaults to 1 1691 to preserve the existing behaviour. 1692 1693 For systems administrators, to obtain best performance with 1694 multicast reception and multiple groups, it is always recommended 1695 that a card with a suitably precise hash filter is used. Hash 1696 collisions will still result in the lock being taken within the 1697 transport protocol input path to check group membership. 1698 1699 If deploying FreeBSD in an environment with IGMP snooping switches, 1700 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1701 enabled; this forces 224.0.0.0/24 group membership to be announced 1702 via IGMP. 1703 1704 The size of 'struct igmpstat' has changed; netstat needs to be 1705 recompiled to reflect this. 1706 Bump __FreeBSD_version to 800070. 1707 170820090309: 1709 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1710 updated to use it. This requires a buildworld/installworld in order to 1711 update the library and dependencies (usbconfig, etc). Its advisable to 1712 rebuild all ports which uses libusb. More specific directions are given 1713 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1714 libusb are no longer required and can be removed. 1715 171620090302: 1717 A workaround is committed to allow the creation of System V shared 1718 memory segment of size > 2 GB on the 64-bit architectures. 1719 Due to a limitation of the existing ABI, the shm_segsz member 1720 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1721 wrong for large segments. Note that limits must be explicitly 1722 raised to allow such segments to be created. 1723 172420090301: 1725 The layout of struct ifnet has changed, requiring a rebuild of all 1726 network device driver modules. 1727 172820090227: 1729 The /dev handling for the new USB stack has changed, a 1730 buildworld/installworld is required for libusb20. 1731 173220090223: 1733 The new USB2 stack has now been permanently moved in and all kernel and 1734 module names reverted to their previous values (eg, usb, ehci, ohci, 1735 ums, ...). The old usb stack can be compiled in by prefixing the name 1736 with the letter 'o', the old usb modules have been removed. 1737 Updating entry 20090216 for xorg and 20090215 for libmap may still 1738 apply. 1739 174020090217: 1741 The rc.conf(5) option if_up_delay has been renamed to 1742 defaultroute_delay to better reflect its purpose. If you have 1743 customized this setting in /etc/rc.conf you need to update it to 1744 use the new name. 1745 174620090216: 1747 xorg 7.4 wants to configure its input devices via hald which does not 1748 yet work with USB2. If the keyboard/mouse does not work in xorg then 1749 add 1750 Option "AllowEmptyInput" "off" 1751 to your ServerLayout section. This will cause X to use the configured 1752 kbd and mouse sections from your xorg.conf. 1753 175420090215: 1755 The GENERIC kernels for all architectures now default to the new USB2 1756 stack. No kernel config options or code have been removed so if a 1757 problem arises please report it and optionally revert to the old USB 1758 stack. If you are loading USB kernel modules or have a custom kernel 1759 that includes GENERIC then ensure that usb names are also changed over, 1760 eg uftdi -> usb2_serial_ftdi. 1761 1762 Older programs linked against the ports libusb 0.1 need to be 1763 redirected to the new stack's libusb20. /etc/libmap.conf can 1764 be used for this: 1765 # Map old usb library to new one for usb2 stack 1766 libusb-0.1.so.8 libusb20.so.1 1767 176820090209: 1769 All USB ethernet devices now attach as interfaces under the name ueN 1770 (eg. ue0). This is to provide a predictable name as vendors often 1771 change usb chipsets in a product without notice. 1772 177320090203: 1774 The ichsmb(4) driver has been changed to require SMBus slave 1775 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1776 All of the other SMBus controller drivers require left-justified 1777 slave addresses, so this change makes all the drivers provide the 1778 same interface. 1779 178020090201: 1781 INET6 statistics (struct ip6stat) was updated. 1782 netstat(1) needs to be recompiled. 1783 178420090119: 1785 NTFS has been removed from GENERIC kernel on amd64 to match 1786 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1787 will load ntfs.ko module automatically when NTFS support is 1788 actually needed, unless ntfs.ko is not installed or security 1789 level prohibits loading kernel modules. If either is the case, 1790 "options NTFS" has to be added into kernel config. 1791 179220090115: 1793 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1794 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1795 800061. User space tools that rely on the size of struct tcpcb in 1796 tcp_var.h (e.g. sockstat) need to be recompiled. 1797 179820081225: 1799 ng_tty(4) module updated to match the new TTY subsystem. 1800 Due to API change, user-level applications must be updated. 1801 New API support added to mpd5 CVS and expected to be present 1802 in next mpd5.3 release. 1803 180420081219: 1805 With __FreeBSD_version 800060 the makefs tool is part of 1806 the base system (it was a port). 1807 180820081216: 1809 The afdata and ifnet locks have been changed from mutexes to 1810 rwlocks, network modules will need to be re-compiled. 1811 181220081214: 1813 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1814 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1815 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1816 architecture and 40 bytes on 64-bit architecture. The userland 1817 applications "arp" and "ndp" have been updated accordingly. 1818 The output from "netstat -r" shows only routing entries and 1819 none of the L2 information. 1820 182120081130: 1822 __FreeBSD_version 800057 marks the switchover from the 1823 binary ath hal to source code. Users must add the line: 1824 1825 options AH_SUPPORT_AR5416 1826 1827 to their kernel config files when specifying: 1828 1829 device ath_hal 1830 1831 The ath_hal module no longer exists; the code is now compiled 1832 together with the driver in the ath module. It is now 1833 possible to tailor chip support (i.e. reduce the set of chips 1834 and thereby the code size); consult ath_hal(4) for details. 1835 183620081121: 1837 __FreeBSD_version 800054 adds memory barriers to 1838 <machine/atomic.h>, new interfaces to ifnet to facilitate 1839 multiple hardware transmit queues for cards that support 1840 them, and a lock-less ring-buffer implementation to 1841 enable drivers to more efficiently manage queueing of 1842 packets. 1843 184420081117: 1845 A new version of ZFS (version 13) has been merged to -HEAD. 1846 This version has zpool attribute "listsnapshots" off by 1847 default, which means "zfs list" does not show snapshots, 1848 and is the same as Solaris behavior. 1849 185020081028: 1851 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1852 185320081009: 1854 The uhci, ohci, ehci and slhci USB Host controller drivers have 1855 been put into separate modules. If you load the usb module 1856 separately through loader.conf you will need to load the 1857 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1858 controller add the following to loader.conf: 1859 1860 uhci_load="YES" 1861 ehci_load="YES" 1862 186320081009: 1864 The ABI used by the PMC toolset has changed. Please keep 1865 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1866 sync. 1867 186820081009: 1869 atapci kernel module now includes only generic PCI ATA 1870 driver. AHCI driver moved to ataahci kernel module. 1871 All vendor-specific code moved into separate kernel modules: 1872 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1873 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1874 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1875 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1876 187720080820: 1878 The TTY subsystem of the kernel has been replaced by a new 1879 implementation, which provides better scalability and an 1880 improved driver model. Most common drivers have been migrated to 1881 the new TTY subsystem, while others have not. The following 1882 drivers have not yet been ported to the new TTY layer: 1883 1884 PCI/ISA: 1885 cy, digi, rc, rp, sio 1886 1887 USB: 1888 ubser, ucycom 1889 1890 Line disciplines: 1891 ng_h4, ng_tty, ppp, sl, snp 1892 1893 Adding these drivers to your kernel configuration file shall 1894 cause compilation to fail. 1895 189620080818: 1897 ntpd has been upgraded to 4.2.4p5. 1898 189920080801: 1900 OpenSSH has been upgraded to 5.1p1. 1901 1902 For many years, FreeBSD's version of OpenSSH preferred DSA 1903 over RSA for host and user authentication keys. With this 1904 upgrade, we've switched to the vendor's default of RSA over 1905 DSA. This may cause upgraded clients to warn about unknown 1906 host keys even for previously known hosts. Users should 1907 follow the usual procedure for verifying host keys before 1908 accepting the RSA key. 1909 1910 This can be circumvented by setting the "HostKeyAlgorithms" 1911 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1912 command line. 1913 1914 Please note that the sequence of keys offered for 1915 authentication has been changed as well. You may want to 1916 specify IdentityFile in a different order to revert this 1917 behavior. 1918 191920080713: 1920 The sio(4) driver has been removed from the i386 and amd64 1921 kernel configuration files. This means uart(4) is now the 1922 default serial port driver on those platforms as well. 1923 1924 To prevent collisions with the sio(4) driver, the uart(4) driver 1925 uses different names for its device nodes. This means the 1926 onboard serial port will now most likely be called "ttyu0" 1927 instead of "ttyd0". You may need to reconfigure applications to 1928 use the new device names. 1929 1930 When using the serial port as a boot console, be sure to update 1931 /boot/device.hints and /etc/ttys before booting the new kernel. 1932 If you forget to do so, you can still manually specify the hints 1933 at the loader prompt: 1934 1935 set hint.uart.0.at="isa" 1936 set hint.uart.0.port="0x3F8" 1937 set hint.uart.0.flags="0x10" 1938 set hint.uart.0.irq="4" 1939 boot -s 1940 194120080609: 1942 The gpt(8) utility has been removed. Use gpart(8) to partition 1943 disks instead. 1944 194520080603: 1946 The version that Linuxulator emulates was changed from 2.4.2 1947 to 2.6.16. If you experience any problems with Linux binaries 1948 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1949 if it fixes the problem contact emulation mailing list. 1950 195120080525: 1952 ISDN4BSD (I4B) was removed from the src tree. You may need to 1953 update a your kernel configuration and remove relevant entries. 1954 195520080509: 1956 I have checked in code to support multiple routing tables. 1957 See the man pages setfib(1) and setfib(2). 1958 This is a hopefully backwards compatible version, 1959 but to make use of it you need to compile your kernel 1960 with options ROUTETABLES=2 (or more up to 16). 1961 196220080420: 1963 The 802.11 wireless support was redone to enable multi-bss 1964 operation on devices that are capable. The underlying device 1965 is no longer used directly but instead wlanX devices are 1966 cloned with ifconfig. This requires changes to rc.conf files. 1967 For example, change: 1968 ifconfig_ath0="WPA DHCP" 1969 to 1970 wlans_ath0=wlan0 1971 ifconfig_wlan0="WPA DHCP" 1972 see rc.conf(5) for more details. In addition, mergemaster of 1973 /etc/rc.d is highly recommended. Simultaneous update of userland 1974 and kernel wouldn't hurt either. 1975 1976 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1977 modules were merged into the base wlan module. All references 1978 to these modules (e.g. in kernel config files) must be removed. 1979 198020080408: 1981 psm(4) has gained write(2) support in native operation level. 1982 Arbitrary commands can be written to /dev/psm%d and status can 1983 be read back from it. Therefore, an application is responsible 1984 for status validation and error recovery. It is a no-op in 1985 other operation levels. 1986 198720080312: 1988 Support for KSE threading has been removed from the kernel. To 1989 run legacy applications linked against KSE libmap.conf may 1990 be used. The following libmap.conf may be used to ensure 1991 compatibility with any prior release: 1992 1993 libpthread.so.1 libthr.so.1 1994 libpthread.so.2 libthr.so.2 1995 libkse.so.3 libthr.so.3 1996 199720080301: 1998 The layout of struct vmspace has changed. This affects libkvm 1999 and any executables that link against libkvm and use the 2000 kvm_getprocs() function. In particular, but not exclusively, 2001 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2002 The effects are minimal, but it's advisable to upgrade world 2003 nonetheless. 2004 200520080229: 2006 The latest em driver no longer has support in it for the 2007 82575 adapter, this is now moved to the igb driver. The 2008 split was done to make new features that are incompatible 2009 with older hardware easier to do. 2010 201120080220: 2012 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2013 likewise the kernel option is now GEOM_LINUX_LVM. 2014 201520080211: 2016 The default NFS mount mode has changed from UDP to TCP for 2017 increased reliability. If you rely on (insecurely) NFS 2018 mounting across a firewall you may need to update your 2019 firewall rules. 2020 202120080208: 2022 Belatedly note the addition of m_collapse for compacting 2023 mbuf chains. 2024 202520080126: 2026 The fts(3) structures have been changed to use adequate 2027 integer types for their members and so to be able to cope 2028 with huge file trees. The old fts(3) ABI is preserved 2029 through symbol versioning in libc, so third-party binaries 2030 using fts(3) should still work, although they will not take 2031 advantage of the extended types. At the same time, some 2032 third-party software might fail to build after this change 2033 due to unportable assumptions made in its source code about 2034 fts(3) structure members. Such software should be fixed 2035 by its vendor or, in the worst case, in the ports tree. 2036 FreeBSD_version 800015 marks this change for the unlikely 2037 case that a portable fix is impossible. 2038 203920080123: 2040 To upgrade to -current after this date, you must be running 2041 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2042 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2043 204420071128: 2045 The ADAPTIVE_GIANT kernel option has been retired because its 2046 functionality is the default now. 2047 204820071118: 2049 The AT keyboard emulation of sunkbd(4) has been turned on 2050 by default. In order to make the special symbols of the Sun 2051 keyboards driven by sunkbd(4) work under X these now have 2052 to be configured the same way as Sun USB keyboards driven 2053 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2054 2055 Option "XkbLayout" "us" 2056 Option "XkbRules" "xorg" 2057 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2058 205920071024: 2060 It has been decided that it is desirable to provide ABI 2061 backwards compatibility to the FreeBSD 4/5/6 versions of the 2062 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2063 broken with the introduction of PCI domain support (see the 2064 20070930 entry). Unfortunately, this required the ABI of 2065 PCIOCGETCONF to be broken again in order to be able to 2066 provide backwards compatibility to the old version of that 2067 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2068 again. As for prominent ports this affects neither pciutils 2069 nor xorg-server this time, the hal port needs to be rebuilt 2070 however. 2071 207220071020: 2073 The misnamed kthread_create() and friends have been renamed 2074 to kproc_create() etc. Many of the callers already 2075 used kproc_start().. 2076 I will return kthread_create() and friends in a while 2077 with implementations that actually create threads, not procs. 2078 Renaming corresponds with version 800002. 2079 208020071010: 2081 RELENG_7 branched. 2082 2083COMMON ITEMS: 2084 2085 General Notes 2086 ------------- 2087 Avoid using make -j when upgrading. While generally safe, there are 2088 sometimes problems using -j to upgrade. If your upgrade fails with 2089 -j, please try again without -j. From time to time in the past there 2090 have been problems using -j with buildworld and/or installworld. This 2091 is especially true when upgrading between "distant" versions (eg one 2092 that cross a major release boundary or several minor releases, or when 2093 several months have passed on the -current branch). 2094 2095 Sometimes, obscure build problems are the result of environment 2096 poisoning. This can happen because the make utility reads its 2097 environment when searching for values for global variables. To run 2098 your build attempts in an "environmental clean room", prefix all make 2099 commands with 'env -i '. See the env(1) manual page for more details. 2100 2101 When upgrading from one major version to another it is generally best 2102 to upgrade to the latest code in the currently installed branch first, 2103 then do an upgrade to the new branch. This is the best-tested upgrade 2104 path, and has the highest probability of being successful. Please try 2105 this approach before reporting problems with a major version upgrade. 2106 2107 When upgrading a live system, having a root shell around before 2108 installing anything can help undo problems. Not having a root shell 2109 around can lead to problems if pam has changed too much from your 2110 starting point to allow continued authentication after the upgrade. 2111 2112 ZFS notes 2113 --------- 2114 When upgrading the boot ZFS pool to a new version, always follow 2115 these two steps: 2116 2117 1.) recompile and reinstall the ZFS boot loader and boot block 2118 (this is part of "make buildworld" and "make installworld") 2119 2120 2.) update the ZFS boot block on your boot drive 2121 2122 The following example updates the ZFS boot block on the first 2123 partition (freebsd-boot) of a GPT partitioned drive ad0: 2124 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2125 2126 Non-boot pools do not need these updates. 2127 2128 To build a kernel 2129 ----------------- 2130 If you are updating from a prior version of FreeBSD (even one just 2131 a few days old), you should follow this procedure. It is the most 2132 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2133 2134 make kernel-toolchain 2135 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2136 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2137 2138 To test a kernel once 2139 --------------------- 2140 If you just want to boot a kernel once (because you are not sure 2141 if it works, or if you want to boot a known bad kernel to provide 2142 debugging information) run 2143 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2144 nextboot -k testkernel 2145 2146 To just build a kernel when you know that it won't mess you up 2147 -------------------------------------------------------------- 2148 This assumes you are already running a CURRENT system. Replace 2149 ${arch} with the architecture of your machine (e.g. "i386", 2150 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2151 2152 cd src/sys/${arch}/conf 2153 config KERNEL_NAME_HERE 2154 cd ../compile/KERNEL_NAME_HERE 2155 make depend 2156 make 2157 make install 2158 2159 If this fails, go to the "To build a kernel" section. 2160 2161 To rebuild everything and install it on the current system. 2162 ----------------------------------------------------------- 2163 # Note: sometimes if you are running current you gotta do more than 2164 # is listed here if you are upgrading from a really old current. 2165 2166 <make sure you have good level 0 dumps> 2167 make buildworld 2168 make kernel KERNCONF=YOUR_KERNEL_HERE 2169 [1] 2170 <reboot in single user> [3] 2171 mergemaster -p [5] 2172 make installworld 2173 mergemaster -i [4] 2174 make delete-old [6] 2175 <reboot> 2176 2177 To cross-install current onto a separate partition 2178 -------------------------------------------------- 2179 # In this approach we use a separate partition to hold 2180 # current's root, 'usr', and 'var' directories. A partition 2181 # holding "/", "/usr" and "/var" should be about 2GB in 2182 # size. 2183 2184 <make sure you have good level 0 dumps> 2185 <boot into -stable> 2186 make buildworld 2187 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2188 <maybe newfs current's root partition> 2189 <mount current's root partition on directory ${CURRENT_ROOT}> 2190 make installworld DESTDIR=${CURRENT_ROOT} 2191 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2192 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2193 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2194 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2195 <reboot into current> 2196 <do a "native" rebuild/install as described in the previous section> 2197 <maybe install compatibility libraries from ports/misc/compat*> 2198 <reboot> 2199 2200 2201 To upgrade in-place from stable to current 2202 ---------------------------------------------- 2203 <make sure you have good level 0 dumps> 2204 make buildworld [9] 2205 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2206 [1] 2207 <reboot in single user> [3] 2208 mergemaster -p [5] 2209 make installworld 2210 mergemaster -i [4] 2211 make delete-old [6] 2212 <reboot> 2213 2214 Make sure that you've read the UPDATING file to understand the 2215 tweaks to various things you need. At this point in the life 2216 cycle of current, things change often and you are on your own 2217 to cope. The defaults can also change, so please read ALL of 2218 the UPDATING entries. 2219 2220 Also, if you are tracking -current, you must be subscribed to 2221 freebsd-current@freebsd.org. Make sure that before you update 2222 your sources that you have read and understood all the recent 2223 messages there. If in doubt, please track -stable which has 2224 much fewer pitfalls. 2225 2226 [1] If you have third party modules, such as vmware, you 2227 should disable them at this point so they don't crash your 2228 system on reboot. 2229 2230 [3] From the bootblocks, boot -s, and then do 2231 fsck -p 2232 mount -u / 2233 mount -a 2234 cd src 2235 adjkerntz -i # if CMOS is wall time 2236 Also, when doing a major release upgrade, it is required that 2237 you boot into single user mode to do the installworld. 2238 2239 [4] Note: This step is non-optional. Failure to do this step 2240 can result in a significant reduction in the functionality of the 2241 system. Attempting to do it by hand is not recommended and those 2242 that pursue this avenue should read this file carefully, as well 2243 as the archives of freebsd-current and freebsd-hackers mailing lists 2244 for potential gotchas. The -U option is also useful to consider. 2245 See mergemaster(8) for more information. 2246 2247 [5] Usually this step is a noop. However, from time to time 2248 you may need to do this if you get unknown user in the following 2249 step. It never hurts to do it all the time. You may need to 2250 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2251 install) after the buildworld before this step if you last updated 2252 from current before 20130425 or from -stable before 20130430. 2253 2254 [6] This only deletes old files and directories. Old libraries 2255 can be deleted by "make delete-old-libs", but you have to make 2256 sure that no program is using those libraries anymore. 2257 2258 [8] In order to have a kernel that can run the 4.x binaries needed to 2259 do an installworld, you must include the COMPAT_FREEBSD4 option in 2260 your kernel. Failure to do so may leave you with a system that is 2261 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2262 required to run the 5.x binaries on more recent kernels. And so on 2263 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2264 2265 Make sure that you merge any new devices from GENERIC since the 2266 last time you updated your kernel config file. 2267 2268 [9] When checking out sources, you must include the -P flag to have 2269 cvs prune empty directories. 2270 2271 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2272 "?=" instead of the "=" assignment operator, so that buildworld can 2273 override the CPUTYPE if it needs to. 2274 2275 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2276 not on the command line, or in /etc/make.conf. buildworld will 2277 warn if it is improperly defined. 2278FORMAT: 2279 2280This file contains a list, in reverse chronological order, of major 2281breakages in tracking -current. It is not guaranteed to be a complete 2282list of such breakages, and only contains entries since October 10, 2007. 2283If you need to see UPDATING entries from before that date, you will need 2284to fetch an UPDATING file from an older FreeBSD release. 2285 2286Copyright information: 2287 2288Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2289 2290Redistribution, publication, translation and use, with or without 2291modification, in full or in part, in any form or format of this 2292document are permitted without further permission from the author. 2293 2294THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2295IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2296WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2297DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2298INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2299(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2300SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2301HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2302STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2303IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2304POSSIBILITY OF SUCH DAMAGE. 2305 2306Contact Warner Losh if you have any questions about your use of 2307this document. 2308 2309$FreeBSD: releng/10.1/UPDATING 290000 2015-10-26 11:37:31Z glebius $ 2310