UPDATING revision 286351
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 1920150805: p17 FreeBSD-SA-15:18.bsdpatch 20 FreeBSD-SA-15:19.routed 21 22 Fix patch(1) shell injection vulnerability via ed(1). 23 [SA-15:18] 24 25 Fix routed remote denial of service vulnerability. [SA-15:19] 26 2720150728: p16 FreeBSD-SA-15:14.bsdpatch 28 FreeBSD-SA-15:15.tcp 29 FreeBSD-SA-15:16.openssh 30 31 Fix patch(1) shell injection vulnerability. [SA-15:14] 32 33 Fix resource exhaustion in TCP reassembly. [SA-15:15] 34 35 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 36 3720150721: p15 FreeBSD-SA-15:13.tcp 38 39 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 40 [SA-15:13] 41 4220150630: p14 FreeBSD-EN-15:08.sendmail [revised] 43 FreeBSD-EN-15:09.xlocale 44 FreeBSD-EN-15:10.iconv 45 46 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 47 48 Fix inconsistency between locale and rune locale states. 49 [EN-15:09] 50 51 Improved iconv(3) UTF-7 support. [EN-15:10] 52 5320150618: p13 FreeBSD-EN-15:08.sendmail 54 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 55 5620150612: p12 FreeBSD-SA-15:10.openssl 57 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 58 5920150609: p11 FreeBSD-EN-15:06.file 60 FreeBSD-EN-15:07.zfs 61 62 Updated base system file(1) to 5.22 to address multiple denial 63 of service issues. [EN-15:06] 64 65 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 66 [EN-15:07] 67 6820150513: p10 FreeBSD-EN-15:04.freebsd-update 69 FreeBSD-EN-15:05.ufs 70 71 Fix bug with freebsd-update(8) that does not ensure the previous 72 upgrade was completed. [EN-15:04] 73 74 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 75 7620150407: p9 FreeBSD-SA-15:04.igmp [revised] 77 FreeBSD-SA-15:07.ntp 78 FreeBSD-SA-15:08.bsdinstall 79 FreeBSD-SA-15:09.ipv6 80 81 Improved patch for SA-15:04.igmp. 82 83 Fix multiple vulnerabilities of ntp. [SA-15:07] 84 85 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 86 87 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 88 8920150320: p8 90 Fix patch for SA-15:06.openssl. 91 9220150319: p7 FreeBSD-SA-15:06.openssl 93 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 94 9520150225: p6 FreeBSD-SA-15:04.igmp 96 FreeBSD-EN-15:01.vt 97 FreeBSD-EN-15:02.openssl 98 FreeBSD-EN-15:03.freebsd-update 99 100 Fix integer overflow in IGMP protocol. [SA-15:04] 101 102 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 103 104 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 105 106 Fix freebsd-update libraries update ordering issue. [EN-15:03] 107 10820150127: p5 FreeBSD-SA-15:02.kmem 109 FreeBSD-SA-15:03.sctp 110 111 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 112 vulnerability. [SA-15:02] 113 114 Fix SCTP stream reset vulnerability. [SA-15:03] 115 11620150114: p4 FreeBSD-SA-15:01.openssl 117 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 118 11920141223: p3 FreeBSD-SA-14:31.ntp 120 FreeBSD-EN-14:13.freebsd-update 121 122 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 123 Fix directory deletion issue in freebsd-update. [EN-14:13] 124 12520141217: p2 FreeBSD-SA-14:30.unbound 126 Fix unbound remote denial of service vulnerability. 127 12820141210: p1 FreeBSD-SA-14:27.stdio 129 FreeBSD-SA-14:28.file 130 131 Fix buffer overflow in stdio. [SA-14:27] 132 133 Fix multiple vulnerabilities in file(1) and libmagic(3). 134 [SA-14:28] 135 13620140904: 137 The ofwfb driver, used to provide a graphics console on PowerPC when 138 using vt(4), no longer allows mmap() of all of physical memory. This 139 will prevent Xorg on PowerPC with some ATI graphics cards from 140 initializing properly unless x11-servers/xorg-server is updated to 141 1.12.4_8 or newer. 142 14320140831: 144 The libatf-c and libatf-c++ major versions were downgraded to 0 and 145 1 respectively to match the upstream numbers. They were out of 146 sync because, when they were originally added to FreeBSD, the 147 upstream versions were not respected. These libraries are private 148 and not yet built by default, so renumbering them should be a 149 non-issue. However, unclean source trees will yield broken test 150 programs once the operator executes "make delete-old-libs" after a 151 "make installworld". 152 153 Additionally, the atf-sh binary was made private by moving it into 154 /usr/libexec/. Already-built shell test programs will keep the 155 path to the old binary so they will break after "make delete-old" 156 is run. 157 158 If you are using WITH_TESTS=yes (not the default), wipe the object 159 tree and rebuild from scratch to prevent spurious test failures. 160 This is only needed once: the misnumbered libraries and misplaced 161 binaries have been added to OptionalObsoleteFiles.inc so they will 162 be removed during a clean upgrade. 163 16420140814: 165 The ixgbe tunables now match their sysctl counterparts, for example: 166 hw.ixgbe.enable_aim => hw.ix.enable_aim 167 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 168 16920140801: 170 The NFSv4.1 server committed by r269398 changes the internal 171 function call interfaces used between the NFS and krpc modules. 172 As such, __FreeBSD_version was bumped. 173 17420140729: 175 The default unbound configuration has been modified to address 176 issues with reverse lookups on networks that use private 177 address ranges. If you use the local_unbound service, run 178 "service local_unbound setup" as root to regenerate your 179 configuration, then "service local_unbound reload" to load the 180 new configuration. 181 18220140717: 183 It is no longer necessary to include the dwarf version in your DEBUG 184 options in your kernel config file. The bug that required it to be 185 placed in the config file has bene fixed. DEBUG should now just 186 contain -g. The build system will automatically update things 187 to do the right thing. 188 18920140715: 190 Several ABI breaking changes were merged to CTL and new iSCSI code. 191 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 192 iscsictl need to be rebuilt to work with a new kernel. 193 19420140708: 195 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 196 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 197 which differs from the behaviour controlled by this knob.) 198 19920140608: 200 On i386 and amd64 systems, the onifconsole flag is now set by default 201 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 202 as a login TTY if it is set in the bootloader as an active kernel 203 console. No changes in behavior should result otherwise. To revert to 204 the previous behavior, set ttyu0 to "off" in /etc/ttys. 205 20620140512: 207 Clang and llvm have been upgraded to 3.4.1 release. 208 20920140321: 210 Clang and llvm have been upgraded to 3.4 release. 211 21220140306: 213 If a Makefile in a tests/ directory was auto-generating a Kyuafile 214 instead of providing an explicit one, this would prevent such 215 Makefile from providing its own Kyuafile in the future during 216 NO_CLEAN builds. This has been fixed in the Makefiles but manual 217 intervention is needed to clean an objdir if you use NO_CLEAN: 218 # find /usr/obj -name Kyuafile | xargs rm -f 219 22020140303: 221 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 222 capability mode support. Please note that enabling the feature in 223 kernel is still highly recommended. 224 22520140227: 226 OpenSSH is now built with sandbox support, and will use sandbox as 227 the default privilege separation method. This requires Capsicum 228 capability mode support in kernel. 229 23020140216: 231 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 232 been deprecated and will not be part of FreeBSD 11.0 and later 233 releases. If you use this driver, please consider switching to 234 the nfe(4) driver instead. 235 23620140120: 237 10.0-RELEASE. 238 23920131216: 240 The behavior of gss_pseudo_random() for the krb5 mechanism 241 has changed, for applications requesting a longer random string 242 than produced by the underlying enctype's pseudo-random() function. 243 In particular, the random string produced from a session key of 244 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 245 be different at the 17th octet and later, after this change. 246 The counter used in the PRF+ construction is now encoded as a 247 big-endian integer in accordance with RFC 4402. 248 __FreeBSD_version is bumped to 1000701. 249 25020131108: 251 The WITHOUT_ATF build knob has been removed and its functionality 252 has been subsumed into the more generic WITHOUT_TESTS. If you were 253 using the former to disable the build of the ATF libraries, you 254 should change your settings to use the latter. 255 25620131031: 257 The default version of mtree is nmtree which is obtained from 258 NetBSD. The output is generally the same, but may vary 259 slightly. If you found you need identical output adding 260 "-F freebsd9" to the command line should do the trick. For the 261 time being, the old mtree is available as fmtree. 262 26320131014: 264 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 265 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 266 1.1.4_8 and verify bsdyml not linked in, before running "make 267 delete-old-libs": 268 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 269 or 270 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 271 27220131010: 273 The rc.d/jail script has been updated to support jail(8) 274 configuration file. The "jail_<jname>_*" rc.conf(5) variables 275 for per-jail configuration are automatically converted to 276 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 277 This is transparently backward compatible. See below about some 278 incompatibilities and rc.conf(5) manual page for more details. 279 280 These variables are now deprecated in favor of jail(8) configuration 281 file. One can use "rc.d/jail config <jname>" command to generate 282 a jail(8) configuration file in /var/run/jail.<jname>.conf without 283 running the jail(8) utility. The default pathname of the 284 configuration file is /etc/jail.conf and can be specified by 285 using $jail_conf or $jail_<jname>_conf variables. 286 287 Please note that jail_devfs_ruleset accepts an integer at 288 this moment. Please consider to rewrite the ruleset name 289 with an integer. 290 29120130930: 292 BIND has been removed from the base system. If all you need 293 is a local resolver, simply enable and start the local_unbound 294 service instead. Otherwise, several versions of BIND are 295 available in the ports tree. The dns/bind99 port is one example. 296 297 With this change, nslookup(1) and dig(1) are no longer in the base 298 system. Users should instead use host(1) and drill(1) which are 299 in the base system. Alternatively, nslookup and dig can 300 be obtained by installing the dns/bind-tools port. 301 30220130916: 303 With the addition of unbound(8), a new unbound user is now 304 required during installworld. "mergemaster -p" can be used to 305 add the user prior to installworld, as documented in the handbook. 306 30720130911: 308 OpenSSH is now built with DNSSEC support, and will by default 309 silently trust signed SSHFP records. This can be controlled with 310 the VerifyHostKeyDNS client configuration setting. DNSSEC support 311 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 312 31320130906: 314 The GNU Compiler Collection and C++ standard library (libstdc++) 315 are no longer built by default on platforms where clang is the system 316 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 317 options in src.conf. 318 31920130905: 320 The PROCDESC kernel option is now part of the GENERIC kernel 321 configuration and is required for the rwhod(8) to work. 322 If you are using custom kernel configuration, you should include 323 'options PROCDESC'. 324 32520130905: 326 The API and ABI related to the Capsicum framework was modified 327 in backward incompatible way. The userland libraries and programs 328 have to be recompiled to work with the new kernel. This includes the 329 following libraries and programs, but the whole buildworld is 330 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 331 kdump, procstat, rwho, rwhod, uniq. 332 33320130903: 334 AES-NI intrinsic support has been added to gcc. The AES-NI module 335 has been updated to use this support. A new gcc is required to build 336 the aesni module on both i386 and amd64. 337 33820130821: 339 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 340 Thus "device padlock_rng" and "device rdrand_rng" should be 341 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 342 34320130813: 344 WITH_ICONV has been split into two feature sets. WITH_ICONV now 345 enables just the iconv* functionality and is now on by default. 346 WITH_LIBICONV_COMPAT enables the libiconv api and link time 347 compatability. Set WITHOUT_ICONV to build the old way. 348 If you have been using WITH_ICONV before, you will very likely 349 need to turn on WITH_LIBICONV_COMPAT. 350 35120130806: 352 INVARIANTS option now enables DEBUG for code with OpenSolaris and 353 Illumos origin, including ZFS. If you have INVARIANTS in your 354 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 355 explicitly. 356 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 357 locks if WITNESS option was set. Because that generated a lot of 358 witness(9) reports and all of them were believed to be false 359 positives, this is no longer done. New option OPENSOLARIS_WITNESS 360 can be used to achieve the previous behavior. 361 36220130806: 363 Timer values in IPv6 data structures now use time_uptime instead 364 of time_second. Although this is not a user-visible functional 365 change, userland utilities which directly use them---ndp(8), 366 rtadvd(8), and rtsold(8) in the base system---need to be updated 367 to r253970 or later. 368 36920130802: 370 find -delete can now delete the pathnames given as arguments, 371 instead of only files found below them or if the pathname did 372 not contain any slashes. Formerly, the following error message 373 would result: 374 375 find: -delete: <path>: relative path potentially not safe 376 377 Deleting the pathnames given as arguments can be prevented 378 without error messages using -mindepth 1 or by changing 379 directory and passing "." as argument to find. This works in the 380 old as well as the new version of find. 381 38220130726: 383 Behavior of devfs rules path matching has been changed. 384 Pattern is now always matched against fully qualified devfs 385 path and slash characters must be explicitly matched by 386 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 387 subdirectories must be reviewed. 388 38920130716: 390 The default ARM ABI has changed to the ARM EABI. The old ABI is 391 incompatible with the ARM EABI and all programs and modules will 392 need to be rebuilt to work with a new kernel. 393 394 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 395 396 NOTE: Support for the old ABI will be removed in the future and 397 users are advised to upgrade. 398 39920130709: 400 pkg_install has been disconnected from the build if you really need it 401 you should add WITH_PKGTOOLS in your src.conf(5). 402 40320130709: 404 Most of network statistics structures were changed to be able 405 keep 64-bits counters. Thus all tools, that work with networking 406 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 407 40820130629: 409 Fix targets that run multiple make's to use && rather than ; 410 so that subsequent steps depend on success of previous. 411 412 NOTE: if building 'universe' with -j* on stable/8 or stable/9 413 it would be better to start the build using bmake, to avoid 414 overloading the machine. 415 41620130618: 417 Fix a bug that allowed a tracing process (e.g. gdb) to write 418 to a memory-mapped file in the traced process's address space 419 even if neither the traced process nor the tracing process had 420 write access to that file. 421 42220130615: 423 CVS has been removed from the base system. An exact copy 424 of the code is available from the devel/cvs port. 425 42620130613: 427 Some people report the following error after the switch to bmake: 428 429 make: illegal option -- J 430 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 431 ... 432 *** [buildworld] Error code 2 433 434 this likely due to an old instance of make in 435 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 436 which src/Makefile will use that blindly, if it exists, so if 437 you see the above error: 438 439 rm -rf `make -V MAKEPATH` 440 441 should resolve it. 442 44320130516: 444 Use bmake by default. 445 Whereas before one could choose to build with bmake via 446 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 447 make. The goal is to remove these knobs for 10-RELEASE. 448 449 It is worth noting that bmake (like gmake) treats the command 450 line as the unit of failure, rather than statements within the 451 command line. Thus '(cd some/where && dosomething)' is safer 452 than 'cd some/where; dosomething'. The '()' allows consistent 453 behavior in parallel build. 454 45520130429: 456 Fix a bug that allows NFS clients to issue READDIR on files. 457 45820130426: 459 The WITHOUT_IDEA option has been removed because 460 the IDEA patent expired. 461 46220130426: 463 The sysctl which controls TRIM support under ZFS has been renamed 464 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 465 enabled by default. 466 46720130425: 468 The mergemaster command now uses the default MAKEOBJDIRPREFIX 469 rather than creating it's own in the temporary directory in 470 order allow access to bootstrapped versions of tools such as 471 install and mtree. When upgrading from version of FreeBSD where 472 the install command does not support -l, you will need to 473 install a new mergemaster command if mergemaster -p is required. 474 This can be accomplished with the command (cd src/usr.sbin/mergemaster 475 && make install). 476 47720130404: 478 Legacy ATA stack, disabled and replaced by new CAM-based one since 479 FreeBSD 9.0, completely removed from the sources. Kernel modules 480 atadisk and atapi*, user-level tools atacontrol and burncd are 481 removed. Kernel option `options ATA_CAM` is now permanently enabled 482 and removed. 483 48420130319: 485 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 486 and socketpair(2). Software, in particular Kerberos, may 487 automatically detect and use these during building. The resulting 488 binaries will not work on older kernels. 489 49020130308: 491 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 492 information, see the respective 20130304 entry). 493 49420130304: 495 Recent commits to callout(9) changed the size of struct callout, 496 so the KBI is probably heavily disturbed. Also, some functions 497 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 498 by macros. Every kernel module using it won't load, so rebuild 499 is requested. 500 501 The ctl device has been re-enabled in GENERIC for i386 and amd64, 502 but does not initialize by default (because of the new CTL_DISABLE 503 option) to save memory. To re-enable it, remove the CTL_DISABLE 504 option from the kernel config file or set kern.cam.ctl.disable=0 505 in /boot/loader.conf. 506 50720130301: 508 The ctl device has been disabled in GENERIC for i386 and amd64. 509 This was done due to the extra memory being allocated at system 510 initialisation time by the ctl driver which was only used if 511 a CAM target device was created. This makes a FreeBSD system 512 unusable on 128MB or less of RAM. 513 51420130208: 515 A new compression method (lz4) has been merged to -HEAD. Please 516 refer to zpool-features(7) for more information. 517 518 Please refer to the "ZFS notes" section of this file for information 519 on upgrading boot ZFS pools. 520 52120130129: 522 A BSD-licensed patch(1) variant has been added and is installed 523 as bsdpatch, being the GNU version the default patch. 524 To inverse the logic and use the BSD-licensed one as default, 525 while having the GNU version installed as gnupatch, rebuild 526 and install world with the WITH_BSD_PATCH knob set. 527 52820130121: 529 Due to the use of the new -l option to install(1) during build 530 and install, you must take care not to directly set the INSTALL 531 make variable in your /etc/make.conf, /etc/src.conf, or on the 532 command line. If you wish to use the -C flag for all installs 533 you may be able to add INSTALL+=-C to /etc/make.conf or 534 /etc/src.conf. 535 53620130118: 537 The install(1) option -M has changed meaning and now takes an 538 argument that is a file or path to append logs to. In the 539 unlikely event that -M was the last option on the command line 540 and the command line contained at least two files and a target 541 directory the first file will have logs appended to it. The -M 542 option served little practical purpose in the last decade so its 543 use is expected to be extremely rare. 544 54520121223: 546 After switching to Clang as the default compiler some users of ZFS 547 on i386 systems started to experience stack overflow kernel panics. 548 Please consider using 'options KSTACK_PAGES=4' in such configurations. 549 55020121222: 551 GEOM_LABEL now mangles label names read from file system metadata. 552 Mangling affect labels containing spaces, non-printable characters, 553 '%' or '"'. Device names in /etc/fstab and other places may need to 554 be updated. 555 55620121217: 557 By default, only the 10 most recent kernel dumps will be saved. To 558 restore the previous behaviour (no limit on the number of kernel dumps 559 stored in the dump directory) add the following line to /etc/rc.conf: 560 561 savecore_flags="" 562 56320121201: 564 With the addition of auditdistd(8), a new auditdistd user is now 565 required during installworld. "mergemaster -p" can be used to 566 add the user prior to installworld, as documented in the handbook. 567 56820121117: 569 The sin6_scope_id member variable in struct sockaddr_in6 is now 570 filled by the kernel before passing the structure to the userland via 571 sysctl or routing socket. This means the KAME-specific embedded scope 572 id in sin6_addr.s6_addr[2] is always cleared in userland application. 573 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 574 __FreeBSD_version is bumped to 1000025. 575 57620121105: 577 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 578 This means that the world and kernel will be compiled with clang 579 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 580 and /usr/bin/cpp. To disable this behavior and revert to building 581 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 582 of current may need to bootstrap WITHOUT_CLANG first if the clang 583 build fails (its compatibility window doesn't extend to the 9 stable 584 branch point). 585 58620121102: 587 The IPFIREWALL_FORWARD kernel option has been removed. Its 588 functionality now turned on by default. 589 59020121023: 591 The ZERO_COPY_SOCKET kernel option has been removed and 592 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 593 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 594 mechanism which is not safe and may result in kernel crashes. 595 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 596 driver supports disposeable external page sized mbuf storage. 597 Proper replacements for both zero-copy mechanisms are under 598 consideration and will eventually lead to complete removal 599 of the two kernel options. 600 60120121023: 602 The IPv4 network stack has been converted to network byte 603 order. The following modules need to be recompiled together 604 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 605 pf(4), ipfw(4), ng_ipfw(4), stf(4). 606 60720121022: 608 Support for non-MPSAFE filesystems was removed from VFS. The 609 VFS_VERSION was bumped, all filesystem modules shall be 610 recompiled. 611 61220121018: 613 All the non-MPSAFE filesystems have been disconnected from 614 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 615 portalfs, smbfs, xfs. 616 61720121016: 618 The interface cloning API and ABI has changed. The following 619 modules need to be recompiled together with kernel: 620 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 621 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 622 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 623 62420121015: 625 The sdhci driver was split in two parts: sdhci (generic SD Host 626 Controller logic) and sdhci_pci (actual hardware driver). 627 No kernel config modifications are required, but if you 628 load sdhc as a module you must switch to sdhci_pci instead. 629 63020121014: 631 Import the FUSE kernel and userland support into base system. 632 63320121013: 634 The GNU sort(1) program has been removed since the BSD-licensed 635 sort(1) has been the default for quite some time and no serious 636 problems have been reported. The corresponding WITH_GNU_SORT 637 knob has also gone. 638 63920121006: 640 The pfil(9) API/ABI for AF_INET family has been changed. Packet 641 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 642 with new kernel. 643 64420121001: 645 The net80211(4) ABI has been changed to allow for improved driver 646 PS-POLL and power-save support. All wireless drivers need to be 647 recompiled to work with the new kernel. 648 64920120913: 650 The random(4) support for the VIA hardware random number 651 generator (`PADLOCK') is no longer enabled unconditionally. 652 Add the padlock_rng device in the custom kernel config if 653 needed. The GENERIC kernels on i386 and amd64 do include the 654 device, so the change only affects the custom kernel 655 configurations. 656 65720120908: 658 The pf(4) packet filter ABI has been changed. pfctl(8) and 659 snmp_pf module need to be recompiled to work with new kernel. 660 66120120828: 662 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 663 to -HEAD. Pools that have empty_bpobj in active state can not be 664 imported read-write with ZFS implementations that do not support 665 this feature. For more information read the zpool-features(5) 666 manual page. 667 66820120727: 669 The sparc64 ZFS loader has been changed to no longer try to auto- 670 detect ZFS providers based on diskN aliases but now requires these 671 to be explicitly listed in the OFW boot-device environment variable. 672 67320120712: 674 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 675 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 676 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 677 67820120712: 679 The following sysctls and tunables have been renamed for consistency 680 with other variables: 681 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 682 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 683 68420120628: 685 The sort utility has been replaced with BSD sort. For now, GNU sort 686 is also available as "gnusort" or the default can be set back to 687 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 688 installed as "bsdsort". 689 69020120611: 691 A new version of ZFS (pool version 5000) has been merged to -HEAD. 692 Starting with this version the old system of ZFS pool versioning 693 is superseded by "feature flags". This concept enables forward 694 compatibility against certain future changes in functionality of ZFS 695 pools. The first read-only compatible "feature flag" for ZFS pools 696 is named "com.delphix:async_destroy". For more information 697 read the new zpool-features(5) manual page. 698 Please refer to the "ZFS notes" section of this file for information 699 on upgrading boot ZFS pools. 700 70120120417: 702 The malloc(3) implementation embedded in libc now uses sources imported 703 as contrib/jemalloc. The most disruptive API change is to 704 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 705 delete it prior to installworld, and optionally re-create it using the 706 new format after rebooting. See malloc.conf(5) for details 707 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 708 NAMESPACE section). 709 71020120328: 711 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 712 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 713 now spelled mips. This is to aid compatibility with third-party 714 software that expects this naming scheme in uname(3). Little-endian 715 settings are unchanged. If you are updating a big-endian mips64 machine 716 from before this change, you may need to set MACHINE_ARCH=mips64 in 717 your environment before the new build system will recognize your machine. 718 71920120306: 720 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 721 platforms. 722 72320120229: 724 Now unix domain sockets behave "as expected" on nullfs(5). Previously 725 nullfs(5) did not pass through all behaviours to the underlying layer, 726 as a result if we bound to a socket on the lower layer we could connect 727 only to the lower path; if we bound to the upper layer we could connect 728 only to the upper path. The new behavior is one can connect to both the 729 lower and the upper paths regardless what layer path one binds to. 730 73120120211: 732 The getifaddrs upgrade path broken with 20111215 has been restored. 733 If you have upgraded in between 20111215 and 20120209 you need to 734 recompile libc again with your kernel. You still need to recompile 735 world to be able to configure CARP but this restriction already 736 comes from 20111215. 737 73820120114: 739 The set_rcvar() function has been removed from /etc/rc.subr. All 740 base and ports rc.d scripts have been updated, so if you have a 741 port installed with a script in /usr/local/etc/rc.d you can either 742 hand-edit the rcvar= line, or reinstall the port. 743 744 An easy way to handle the mass-update of /etc/rc.d: 745 rm /etc/rc.d/* && mergemaster -i 746 74720120109: 748 panic(9) now stops other CPUs in the SMP systems, disables interrupts 749 on the current CPU and prevents other threads from running. 750 This behavior can be reverted using the kern.stop_scheduler_on_panic 751 tunable/sysctl. 752 The new behavior can be incompatible with kern.sync_on_panic. 753 75420111215: 755 The carp(4) facility has been changed significantly. Configuration 756 of the CARP protocol via ifconfig(8) has changed, as well as format 757 of CARP events submitted to devd(8) has changed. See manual pages 758 for more information. The arpbalance feature of carp(4) is currently 759 not supported anymore. 760 761 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 762 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 763 need to be recompiled. 764 76520111122: 766 The acpi_wmi(4) status device /dev/wmistat has been renamed to 767 /dev/wmistat0. 768 76920111108: 770 The option VFS_ALLOW_NONMPSAFE option has been added in order to 771 explicitely support non-MPSAFE filesystems. 772 It is on by default for all supported platform at this present 773 time. 774 77520111101: 776 The broken amd(4) driver has been replaced with esp(4) in the amd64, 777 i386 and pc98 GENERIC kernel configuration files. 778 77920110930: 780 sysinstall has been removed 781 78220110923: 783 The stable/9 branch created in subversion. This corresponds to the 784 RELENG_9 branch in CVS. 785 78620110913: 787 This commit modifies vfs_register() so that it uses a hash 788 calculation to set vfc_typenum, which is enabled by default. 789 The first time a system is booted after this change, the 790 vfc_typenum values will change for all file systems. The 791 main effect of this is a change to the NFS server file handles 792 for file systems that use vfc_typenum in their fsid, such as ZFS. 793 It will, however, prevent vfc_typenum from changing when file 794 systems are loaded in a different order for subsequent reboots. 795 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 796 until you are ready to remount all NFS clients after a reboot. 797 79820110828: 799 Bump the shared library version numbers for libraries that 800 do not use symbol versioning, have changed the ABI compared 801 to stable/8 and which shared library version was not bumped. 802 Done as part of 9.0-RELEASE cycle. 803 80420110815: 805 During the merge of Capsicum features, the fget(9) KPI was modified. 806 This may require the rebuilding of out-of-tree device drivers -- 807 issues have been reported specifically with the nVidia device driver. 808 __FreeBSD_version is bumped to 900041. 809 810 Also, there is a period between 20110811 and 20110814 where the 811 special devices /dev/{stdin,stdout,stderr} did not work correctly. 812 Building world from a kernel during that window may not work. 813 81420110628: 815 The packet filter (pf) code has been updated to OpenBSD 4.5. 816 You need to update userland tools to be in sync with kernel. 817 This update breaks backward compatibility with earlier pfsync(4) 818 versions. Care must be taken when updating redundant firewall setups. 819 82020110608: 821 The following sysctls and tunables are retired on x86 platforms: 822 machdep.hlt_cpus 823 machdep.hlt_logical_cpus 824 The following sysctl is retired: 825 machdep.hyperthreading_allowed 826 The sysctls were supposed to provide a way to dynamically offline and 827 online selected CPUs on x86 platforms, but the implementation has not 828 been reliable especially with SCHED_ULE scheduler. 829 machdep.hyperthreading_allowed tunable is still available to ignore 830 hyperthreading CPUs at OS level. 831 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 832 where X is an APIC ID of a CPU. Be advised, though, that disabling 833 CPUs in non-uniform fashion will result in non-uniform topology and 834 may lead to sub-optimal system performance with SCHED_ULE, which is 835 a default scheduler. 836 83720110607: 838 cpumask_t type is retired and cpuset_t is used in order to describe 839 a mask of CPUs. 840 84120110531: 842 Changes to ifconfig(8) for dynamic address family detection mandate 843 that you are running a kernel of 20110525 or later. Make sure to 844 follow the update procedure to boot a new kernel before installing 845 world. 846 84720110513: 848 Support for sun4v architecture is officially dropped 849 85020110503: 851 Several KPI breaking changes have been committed to the mii(4) layer, 852 the PHY drivers and consequently some Ethernet drivers using mii(4). 853 This means that miibus.ko and the modules of the affected Ethernet 854 drivers need to be recompiled. 855 856 Note to kernel developers: Given that the OUI bit reversion problem 857 was fixed as part of these changes all mii(4) commits related to OUIs, 858 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 859 handling, no longer can be merged verbatim to stable/8 and previous 860 branches. 861 86220110430: 863 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 864 into their kernel configurations along with 'device pci'. 865 86620110427: 867 The default NFS client is now the new NFS client, so fstype "newnfs" 868 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 869 Although mounts via fstype "nfs" will usually work without userland 870 changes, it is recommended that the mount(8) and mount_nfs(8) 871 commands be rebuilt from sources and that a link to mount_nfs called 872 mount_oldnfs be created. The new client is compiled into the 873 kernel with "options NFSCL" and this is needed for diskless root 874 file systems. The GENERIC kernel configs have been changed to use 875 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 876 To use the regular/old client, you can "mount -t oldnfs ...". For 877 a diskless root file system, you must also include a line like: 878 879 vfs.root.mountfrom="oldnfs:" 880 881 in the boot/loader.conf on the root fs on the NFS server to make 882 a diskless root fs use the old client. 883 88420110424: 885 The GENERIC kernels for all architectures now default to the new 886 CAM-based ATA stack. It means that all legacy ATA drivers were 887 removed and replaced by respective CAM drivers. If you are using 888 ATA device names in /etc/fstab or other places, make sure to update 889 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 890 where 'Y's are the sequential numbers starting from zero for each type 891 in order of detection, unless configured otherwise with tunables, 892 see cam(4)). There will be symbolic links created in /dev/ to map 893 old adX devices to the respective adaY. They should provide basic 894 compatibility for file systems mounting in most cases, but they do 895 not support old user-level APIs and do not have respective providers 896 in GEOM. Consider using updated management tools with new device names. 897 898 It is possible to load devices ahci, ata, siis and mvs as modules, 899 but option ATA_CAM should remain in kernel configuration to make ata 900 module work as CAM driver supporting legacy ATA controllers. Device ata 901 still can be used in modular fashion (atacore + ...). Modules atadisk 902 and atapi* are not used and won't affect operation in ATA_CAM mode. 903 Note that to use CAM-based ATA kernel should include CAM devices 904 scbus, pass, da (or explicitly ada), cd and optionally others. All of 905 them are parts of the cam module. 906 907 ataraid(4) functionality is now supported by the RAID GEOM class. 908 To use it you can load geom_raid kernel module and use graid(8) tool 909 for management. Instead of /dev/arX device names, use /dev/raid/rX. 910 911 No kernel config options or code have been removed, so if a problem 912 arises, please report it and optionally revert to the old ATA stack. 913 In order to do it you can remove from the kernel config: 914 options ATA_CAM 915 device ahci 916 device mvs 917 device siis 918 , and instead add back: 919 device atadisk # ATA disk drives 920 device ataraid # ATA RAID drives 921 device atapicd # ATAPI CDROM drives 922 device atapifd # ATAPI floppy drives 923 device atapist # ATAPI tape drives 924 92520110423: 926 The default NFS server has been changed to the new server, which 927 was referred to as the experimental server. If you need to switch 928 back to the old NFS server, you must now put the "-o" option on 929 both the mountd and nfsd commands. This can be done using the 930 mountd_flags and nfs_server_flags rc.conf variables until an 931 update to the rc scripts is committed, which is coming soon. 932 93320110418: 934 The GNU Objective-C runtime library (libobjc), and other Objective-C 935 related components have been removed from the base system. If you 936 require an Objective-C library, please use one of the available ports. 937 93820110331: 939 ath(4) has been split into bus- and device- modules. if_ath contains 940 the HAL, the TX rate control and the network device code. if_ath_pci 941 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 942 contains the AHB glue. Users need to load both if_ath_pci and if_ath 943 in order to use ath on everything else. 944 945 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 946 need to load if_ath and if_ath_pci for ath(4) operation. 947 94820110314: 949 As part of the replacement of sysinstall, the process of building 950 release media has changed significantly. For details, please re-read 951 release(7), which has been updated to reflect the new build process. 952 95320110218: 954 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 955 is the last available version under GPLv2. It brings a number of new 956 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 957 4.1 and SSE 4.2), better support for powerpc64, a number of new 958 directives, and lots of other small improvements. See the ChangeLog 959 file in contrib/binutils for the full details. 960 96120110218: 962 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 963 compliant, and will now use half of hash for authentication. 964 This will break interoperability with all stacks (including all 965 actual FreeBSD versions) who implement 966 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 967 authentication). 968 The only workaround with such peers is to use another HMAC 969 algorithm for IPsec ("phase 2") authentication. 970 97120110207: 972 Remove the uio_yield prototype and symbol. This function has 973 been misnamed since it was introduced and should not be 974 globally exposed with this name. The equivalent functionality 975 is now available using kern_yield(curthread->td_user_pri). 976 The function remains undocumented. 977 97820110112: 979 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 980 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 981 for scalar sysctls is defined but disabled. Code that needs 982 UQUAD to pass the type checking that must compile on older 983 systems where the define is not present can check against 984 __FreeBSD_version >= 900030. 985 986 The system dialog(1) has been replaced with a new version previously 987 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 988 with the previous version, but the libdialog associated with it has 989 a largely incompatible API. As such, the original version of libdialog 990 will be kept temporarily as libodialog, until its base system consumers 991 are replaced or updated. Bump __FreeBSD_version to 900030. 992 99320110103: 994 If you are trying to run make universe on a -stable system, and you get 995 the following warning: 996 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 997 unknown. config(8) likely too old." 998 or something similar to it, then you must upgrade your -stable system 999 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1000 stable/8) or build the config from the latest stable/8 branch and 1001 install it on your system. 1002 1003 Prior to this date, building a current universe on 8-stable system from 1004 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1005 error in the first kernel build phase. A new config on those old 1006 systems will fix that problem for older versions of -current. 1007 100820101228: 1009 The TCP stack has been modified to allow Khelp modules to interact with 1010 it via helper hook points and store per-connection data in the TCP 1011 control block. Bump __FreeBSD_version to 900029. User space tools that 1012 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1013 be recompiled. 1014 101520101114: 1016 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1017 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1018 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1019 to take advantage of it instead of using custom implementations. This 1020 means that these drivers now no longer unconditionally advertise 1021 support for flow control but only do so if flow control is a selected 1022 media option. This was implemented in the generic support that way in 1023 order to allow flow control to be switched on and off via ifconfig(8) 1024 with the PHY specific default to typically off in order to protect 1025 from unwanted effects. Consequently, if you used flow control with 1026 one of the above mentioned drivers you now need to explicitly enable 1027 it, for example via: 1028 ifconfig bge0 media auto mediaopt flowcontrol 1029 1030 Along with the above mentioned changes generic support for setting 1031 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1032 e1000phy(4) as well as ip1000phy(4) have been converted to take 1033 advantage of it. This means that these drivers now no longer take the 1034 link0 parameter for selecting master mode but the master media option 1035 has to be used instead, for example like in the following: 1036 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1037 1038 Selection of master mode now is also available with all other PHY 1039 drivers supporting 1000baseT. 1040 104120101111: 1042 The TCP stack has received a significant update to add support for 1043 modularised congestion control and generally improve the clarity of 1044 congestion control decisions. Bump __FreeBSD_version to 900025. User 1045 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1046 sockstat) need to be recompiled. 1047 104820101002: 1049 The man(1) utility has been replaced by a new version that no longer 1050 uses /etc/manpath.config. Please consult man.conf(5) for how to 1051 migrate local entries to the new format. 1052 105320100928: 1054 The copyright strings printed by login(1) and sshd(8) at the time of a 1055 new connection have been removed to follow other operating systems and 1056 upstream sshd. 1057 105820100915: 1059 A workaround for a fixed ld bug has been removed in kernel code, 1060 so make sure that your system ld is built from sources after 1061 revision 210245 from 2010-07-19 (r211583 if building head kernel 1062 on stable/8, r211584 for stable/7; both from 2010-08-21). 1063 A symptom of incorrect ld version is different addresses for 1064 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1065 106620100913: 1067 The $ipv6_prefer variable in rc.conf(5) has been split into 1068 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1069 1070 The $ip6addrctl_policy is a variable to choose a pre-defined 1071 address selection policy set by ip6addrctl(8). A value 1072 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1073 default is "AUTO". 1074 1075 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1076 flag (see an entry of 20090926) is set on an interface with no 1077 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1078 security reason. If you want IPv6 link-local address on all 1079 interfaces by default, set this to "YES". 1080 1081 The old ipv6_prefer="YES" is equivalent to 1082 ipv6_activate_all_interfaces="YES" and 1083 ip6addrctl_policy="ipv6_prefer". 1084 108520100913: 1086 DTrace has grown support for userland tracing. Due to this, DTrace is 1087 now i386 and amd64 only. 1088 dtruss(1) is now installed by default on those systems and a new 1089 kernel module is needed for userland tracing: fasttrap. 1090 No changes to your kernel config file are necessary to enable 1091 userland tracing, but you might consider adding 'STRIP=' and 1092 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1093 to have informative userland stack traces in DTrace (ustack). 1094 109520100725: 1096 The acpi_aiboost(4) driver has been removed in favor of the new 1097 aibs(4) driver. You should update your kernel configuration file. 1098 109920100722: 1100 BSD grep has been imported to the base system and it is built by 1101 default. It is completely BSD licensed, highly GNU-compatible, uses 1102 less memory than its GNU counterpart and has a small codebase. 1103 However, it is slower than its GNU counterpart, which is mostly 1104 noticeable for larger searches, for smaller ones it is measurable 1105 but not significant. The reason is complex, the most important factor 1106 is that we lack a modern and efficient regex library and GNU 1107 overcomes this by optimizing the searches internally. Future work 1108 on improving the regex performance is planned, for the meantime, 1109 users that need better performance, can build GNU grep instead by 1110 setting the WITH_GNU_GREP knob. 1111 111220100713: 1113 Due to the import of powerpc64 support, all existing powerpc kernel 1114 configuration files must be updated with a machine directive like this: 1115 machine powerpc powerpc 1116 1117 In addition, an updated config(8) is required to build powerpc kernels 1118 after this change. 1119 112020100713: 1121 A new version of ZFS (version 15) has been merged to -HEAD. 1122 This version uses a python library for the following subcommands: 1123 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1124 For full functionality of these commands the following port must 1125 be installed: sysutils/py-zfs 1126 112720100429: 1128 'vm_page's are now hashed by physical address to an array of mutexes. 1129 Currently this is only used to serialize access to hold_count. Over 1130 time the page queue mutex will be peeled away. This changes the size 1131 of pmap on every architecture. And requires all callers of vm_page_hold 1132 and vm_page_unhold to be updated. 1133 113420100402: 1135 WITH_CTF can now be specified in src.conf (not recommended, there 1136 are some problems with static executables), make.conf (would also 1137 affect ports which do not use GNU make and do not override the 1138 compile targets) or in the kernel config (via "makeoptions 1139 WITH_CTF=yes"). 1140 When WITH_CTF was specified there before this was silently ignored, 1141 so make sure that WITH_CTF is not used in places which could lead 1142 to unwanted behavior. 1143 114420100311: 1145 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1146 to allow 32-bit compatibility on non-x86 platforms. All kernel 1147 configurations on amd64 and ia64 platforms using these options must 1148 be modified accordingly. 1149 115020100113: 1151 The utmp user accounting database has been replaced with utmpx, 1152 the user accounting interface standardized by POSIX. 1153 Unfortunately the semantics of utmp and utmpx don't match, 1154 making it practically impossible to support both interfaces. 1155 The user accounting database is used by tools like finger(1), 1156 last(1), talk(1), w(1) and ac(8). 1157 1158 All applications in the base system use utmpx. This means only 1159 local binaries (e.g. from the ports tree) may still use these 1160 utmp database files. These applications must be rebuilt to make 1161 use of utmpx. 1162 1163 After the system has been upgraded, it is safe to remove the old 1164 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1165 assuming their contents is of no importance anymore. Old wtmp 1166 databases can only be used by last(1) and ac(8) after they have 1167 been converted to the new format using wtmpcvt(1). 1168 116920100108: 1170 Introduce the kernel thread "deadlock resolver" (which can be enabled 1171 via the DEADLKRES option, see NOTES for more details) and the 1172 sleepq_type() function for sleepqueues. 1173 117420091202: 1175 The rc.firewall and rc.firewall6 were unified, and 1176 rc.firewall6 and rc.d/ip6fw were removed. 1177 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1178 variables are obsoleted. Instead, the following new rc 1179 variables are added to rc.d/ipfw: 1180 1181 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1182 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1183 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1184 1185 The meanings correspond to the relevant IPv4 variables. 1186 118720091125: 1188 8.0-RELEASE. 1189 119020091113: 1191 The default terminal emulation for syscons(4) has been changed 1192 from cons25 to xterm on all platforms except pc98. This means 1193 that the /etc/ttys file needs to be updated to ensure correct 1194 operation of applications on the console. 1195 1196 The terminal emulation style can be toggled per window by using 1197 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1198 options can be used to change the compile-time default back to 1199 cons25. 1200 1201 To prevent graphical artifacts, make sure the TERM environment 1202 variable is set to match the terminal emulation that is being 1203 performed by syscons(4). 1204 120520091109: 1206 The layout of the structure ieee80211req_scan_result has changed. 1207 Applications that require wireless scan results (e.g. ifconfig(8)) 1208 from net80211 need to be recompiled. 1209 1210 Applications such as wpa_supplicant(8) may require a full world 1211 build without using NO_CLEAN in order to get synchronized with the 1212 new structure. 1213 121420091025: 1215 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1216 There's one kernel module for each firmware. Adding "device iwnfw" 1217 to the kernel configuration file means including all three firmware 1218 images inside the kernel. If you want to include just the one for 1219 your wireless card, use the devices iwn4965fw, iwn5000fw or 1220 iwn5150fw. 1221 122220090926: 1223 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1224 into rc.d/netif. The changes are the following: 1225 1226 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1227 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1228 Note that both variables need the "inet6" keyword at the head. 1229 1230 Do not set $ipv6_network_interfaces manually if you do not 1231 understand what you are doing. It is not needed in most cases. 1232 1233 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1234 they are obsolete. 1235 1236 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1237 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1238 1239 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1240 all configured interfaces have "inet6 accept_rtadv" in the 1241 $ifconfig_IF_ipv6. These are for backward compatibility. 1242 1243 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1244 functionality of interfaces with no corresponding 1245 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1246 and the default address selection policy of ip6addrctl(8) 1247 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1248 Note that if you want to configure IPv6 functionality on the 1249 disabled interfaces after boot, first you need to clear the flag by 1250 using ifconfig(8) like: 1251 1252 ifconfig em0 inet6 -ifdisabled 1253 1254 If YES, the default address selection policy is set as 1255 IPv6-preferred. 1256 1257 The default value of $ipv6_prefer is NO. 1258 1259 4. If your system need to receive Router Advertisement messages, 1260 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1261 scripts automatically invoke rtsol(8) when the interface becomes 1262 UP. The Router Advertisement messages are used for SLAAC 1263 (State-Less Address AutoConfiguration). 1264 126520090922: 1266 802.11s D3.03 support was committed. This is incompatible with the 1267 previous code, which was based on D3.0. 1268 126920090912: 1270 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1271 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1272 control whether accepting Router Advertisement messages or not. 1273 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1274 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1275 The ifconfig(8) utility now supports these flags. 1276 127720090910: 1278 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1279 mount(8) and -a option for df(1) to see them. 1280 128120090825: 1282 The old tunable hw.bus.devctl_disable has been superseded by 1283 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1284 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1285 is 1000. 1286 128720090813: 1288 Remove the option STOP_NMI. The default action is now to use NMI only 1289 for KDB via the newly introduced function stop_cpus_hard() and 1290 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1291 129220090803: 1293 The stable/8 branch created in subversion. This corresponds to the 1294 RELENG_8 branch in CVS. 1295 129620090719: 1297 Bump the shared library version numbers for all libraries that do not 1298 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1299 __FreeBSD_version to 800105. 1300 130120090714: 1302 Due to changes in the implementation of virtual network stack support, 1303 all network-related kernel modules must be recompiled. As this change 1304 breaks the ABI, bump __FreeBSD_version to 800104. 1305 130620090713: 1307 The TOE interface to the TCP syncache has been modified to remove 1308 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1309 The cxgb driver is the only TOE consumer affected by this change, and 1310 needs to be recompiled along with the kernel. As this change breaks 1311 the ABI, bump __FreeBSD_version to 800103. 1312 131320090712: 1314 Padding has been added to struct tcpcb, sackhint and tcpstat in 1315 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1316 maintaining the ABI. However, this change breaks the ABI, so bump 1317 __FreeBSD_version to 800102. User space tools that rely on the size of 1318 any of these structs (e.g. sockstat) need to be recompiled. 1319 132020090630: 1321 The NFS_LEGACYRPC option has been removed along with the old kernel 1322 RPC implementation that this option selected. Kernel configurations 1323 may need to be adjusted. 1324 132520090629: 1326 The network interface device nodes at /dev/net/<interface> have been 1327 removed. All ioctl operations can be performed the normal way using 1328 routing sockets. The kqueue functionality can generally be replaced 1329 with routing sockets. 1330 133120090628: 1332 The documentation from the FreeBSD Documentation Project (Handbook, 1333 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1334 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1335 133620090624: 1337 The ABI of various structures related to the SYSV IPC API have been 1338 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1339 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1340 800100. 1341 134220090622: 1343 Layout of struct vnet has changed as routing related variables were 1344 moved to their own Vimage module. Modules need to be recompiled. Bump 1345 __FreeBSD_version to 800099. 1346 134720090619: 1348 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1349 respectively. As long as no more than 16 groups per process are used, 1350 no changes should be visible. When more than 16 groups are used, old 1351 binaries may fail if they call getgroups() or getgrouplist() with 1352 statically sized storage. Recompiling will work around this, but 1353 applications should be modified to use dynamically allocated storage 1354 for group arrays as POSIX.1-2008 does not cap an implementation's 1355 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1356 1357 NFS and portalfs mounts may also be affected as the list of groups is 1358 truncated to 16. Users of NFS who use more than 16 groups, should 1359 take care that negative group permissions are not used on the exported 1360 file systems as they will not be reliable unless a GSSAPI based 1361 authentication method is used. 1362 136320090616: 1364 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1365 option compiles in the support for adaptive spinning for lockmgrs 1366 which want to enable it. The lockinit() function now accepts the flag 1367 LK_ADAPTIVE in order to make the lock object subject to adaptive 1368 spinning when both held in write and read mode. 1369 137020090613: 1371 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1372 changed. User applications that use this ioctl need to be rebuilt. 1373 137420090611: 1375 The layout of struct thread has changed. Kernel and modules need to 1376 be rebuilt. 1377 137820090608: 1379 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1380 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1381 138220090602: 1383 window(1) has been removed from the base system. It can now be 1384 installed from ports. The port is called misc/window. 1385 138620090601: 1387 The way we are storing and accessing `routing table' entries has 1388 changed. Programs reading the FIB, like netstat, need to be 1389 re-compiled. 1390 139120090601: 1392 A new netisr implementation has been added for FreeBSD 8. Network 1393 file system modules, such as igmp, ipdivert, and others, should be 1394 rebuilt. 1395 Bump __FreeBSD_version to 800096. 1396 139720090530: 1398 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1399 more valid. 1400 140120090530: 1402 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1403 Bump __FreeBSD_version to 800094. 1404 140520090529: 1406 Add mnt_xflag field to 'struct mount'. File system modules need to be 1407 rebuilt. 1408 Bump __FreeBSD_version to 800093. 1409 141020090528: 1411 The compiling option ADAPTIVE_SX has been retired while it has been 1412 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1413 The KPI for sx_init_flags() changes as accepting flags: 1414 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1415 been introduced in order to handle the reversed logic. 1416 Bump __FreeBSD_version to 800092. 1417 141820090527: 1419 Add support for hierarchical jails. Remove global securelevel. 1420 Bump __FreeBSD_version to 800091. 1421 142220090523: 1423 The layout of struct vnet_net has changed, therefore modules 1424 need to be rebuilt. 1425 Bump __FreeBSD_version to 800090. 1426 142720090523: 1428 The newly imported zic(8) produces a new format in the output. Please 1429 run tzsetup(8) to install the newly created data to /etc/localtime. 1430 143120090520: 1432 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1433 hw.usb.* and is now consistent again with previous releases. 1434 143520090520: 1436 802.11 monitor mode support was revised and driver api's were changed. 1437 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1438 of DLT_IEEE802_11. No user-visible data structures were changed but 1439 applications that use DLT_IEEE802_11 may require changes. 1440 Bump __FreeBSD_version to 800088. 1441 144220090430: 1443 The layout of the following structs has changed: sysctl_oid, 1444 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1445 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1446 panics may be experienced. World rebuild is required for 1447 correctly checking networking state from userland. 1448 Bump __FreeBSD_version to 800085. 1449 145020090429: 1451 MLDv2 and Source-Specific Multicast (SSM) have been merged 1452 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1453 The implementation of SSM within FreeBSD's IPv6 stack closely 1454 follows the IPv4 implementation. 1455 1456 For kernel developers: 1457 1458 * The most important changes are that the ip6_output() and 1459 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1460 and this lock has been downgraded to a non-recursive mutex. 1461 1462 * As with the changes to the IPv4 stack to support SSM, filtering 1463 of inbound multicast traffic must now be performed by transport 1464 protocols within the IPv6 stack. This does not apply to TCP and 1465 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1466 1467 * The KPIs used by IPv6 multicast are similar to those used by 1468 the IPv4 stack, with the following differences: 1469 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1470 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1471 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1472 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1473 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1474 for MLDv1 have an additional 'timer' argument which is used to 1475 jitter the initial membership report for the solicited-node 1476 multicast membership on-link. 1477 * This is not strictly needed for MLDv2, which already jitters 1478 its report transmissions. However, the 'timer' argument is 1479 preserved in case MLDv1 is active on the interface. 1480 1481 * The KAME linked-list based IPv6 membership implementation has 1482 been refactored to use a vector similar to that used by the IPv4 1483 stack. 1484 Code which maintains a list of its own multicast memberships 1485 internally, e.g. carp, has been updated to reflect the new 1486 semantics. 1487 1488 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1489 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1490 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1491 implementation constraint which needs to be addressed in HEAD. 1492 1493 For application developers: 1494 1495 * The changes are broadly similar to those made for the IPv4 1496 stack. 1497 1498 * The use of IPv4 and IPv6 multicast socket options on the same 1499 socket, using mapped addresses, HAS NOT been tested or supported. 1500 1501 * There are a number of issues with the implementation of various 1502 IPv6 multicast APIs which need to be resolved in the API surface 1503 before the implementation is fully compatible with KAME userland 1504 use, and these are mostly to do with interface index treatment. 1505 1506 * The literature available discusses the use of either the delta / ASM 1507 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1508 using setsourcefilter(3)/getsourcefilter(3). For more information 1509 please refer to RFC 3768, 'Socket Interface Extensions for 1510 Multicast Source Filters'. 1511 1512 * Applications which use the published RFC 3678 APIs should be fine. 1513 1514 For systems administrators: 1515 1516 * The mtest(8) utility has been refactored to support IPv6, in 1517 addition to IPv4. Interface addresses are no longer accepted 1518 as arguments, their names must be used instead. The utility 1519 will map the interface name to its first IPv4 address as 1520 returned by getifaddrs(3). 1521 1522 * The ifmcstat(8) utility has also been updated to print the MLDv2 1523 endpoint state and source filter lists via sysctl(3). 1524 1525 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1526 loopback of IPv6 multicast datagrams by default; it defaults to 1 1527 to preserve the existing behaviour. Disabling multicast loopback is 1528 recommended for optimal system performance. 1529 1530 * The IPv6 MROUTING code has been changed to examine this sysctl 1531 instead of attempting to perform a group lookup before looping 1532 back forwarded datagrams. 1533 1534 Bump __FreeBSD_version to 800084. 1535 153620090422: 1537 Implement low-level Bluetooth HCI API. 1538 Bump __FreeBSD_version to 800083. 1539 154020090419: 1541 The layout of struct malloc_type, used by modules to register new 1542 memory allocation types, has changed. Most modules will need to 1543 be rebuilt or panics may be experienced. 1544 Bump __FreeBSD_version to 800081. 1545 154620090415: 1547 Anticipate overflowing inp_flags - add inp_flags2. 1548 This changes most offsets in inpcb, so checking v4 connection 1549 state will require a world rebuild. 1550 Bump __FreeBSD_version to 800080. 1551 155220090415: 1553 Add an llentry to struct route and struct route_in6. Modules 1554 embedding a struct route will need to be recompiled. 1555 Bump __FreeBSD_version to 800079. 1556 155720090414: 1558 The size of rt_metrics_lite and by extension rtentry has changed. 1559 Networking administration apps will need to be recompiled. 1560 The route command now supports show as an alias for get, weighting 1561 of routes, sticky and nostick flags to alter the behavior of stateful 1562 load balancing. 1563 Bump __FreeBSD_version to 800078. 1564 156520090408: 1566 Do not use Giant for kbdmux(4) locking. This is wrong and 1567 apparently causing more problems than it solves. This will 1568 re-open the issue where interrupt handlers may race with 1569 kbdmux(4) in polling mode. Typical symptoms include (but 1570 not limited to) duplicated and/or missing characters when 1571 low level console functions (such as gets) are used while 1572 interrupts are enabled (for example geli password prompt, 1573 mountroot prompt etc.). Disabling kbdmux(4) may help. 1574 157520090407: 1576 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1577 kernel modules referencing any of the above need to be recompiled. 1578 Bump __FreeBSD_version to 800075. 1579 158020090320: 1581 GEOM_PART has become the default partition slicer for storage devices, 1582 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1583 introduces some changes: 1584 1585 MSDOS/EBR: the devices created from MSDOS extended partition entries 1586 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1587 to devices with offset-based names. fstabs may need to be modified. 1588 1589 BSD: the "geometry does not match label" warning is harmless in most 1590 cases but it points to problems in file system misalignment with 1591 disk geometry. The "c" partition is now implicit, covers the whole 1592 top-level drive and cannot be (mis)used by users. 1593 1594 General: Kernel dumps are now not allowed to be written to devices 1595 whose partition types indicate they are meant to be used for file 1596 systems (or, in case of MSDOS partitions, as something else than 1597 the "386BSD" type). 1598 1599 Most of these changes date approximately from 200812. 1600 160120090319: 1602 The uscanner(4) driver has been removed from the kernel. This follows 1603 Linux removing theirs in 2.6 and making libusb the default interface 1604 (supported by sane). 1605 160620090319: 1607 The multicast forwarding code has been cleaned up. netstat(1) 1608 only relies on KVM now for printing bandwidth upcall meters. 1609 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1610 ip6_mroute_mod respectively. The config(5) options for statically 1611 compiling this code remain the same, i.e. 'options MROUTING'. 1612 161320090315: 1614 Support for the IFF_NEEDSGIANT network interface flag has been 1615 removed, which means that non-MPSAFE network device drivers are no 1616 longer supported. In particular, if_ar, if_sr, and network device 1617 drivers from the old (legacy) USB stack can no longer be built or 1618 used. 1619 162020090313: 1621 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1622 a bunch of new language catalog files have also been added. 1623 This means that some common libc messages are now localized and 1624 they depend on the LC_MESSAGES environmental variable. 1625 162620090313: 1627 The k8temp(4) driver has been renamed to amdtemp(4) since 1628 support for Family 10 and Family 11 CPU families was added. 1629 163020090309: 1631 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1632 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1633 1634 For kernel developers, the most important changes are that the 1635 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1636 and this lock has been downgraded to a non-recursive mutex. 1637 1638 Transport protocols (UDP, Raw IP) are now responsible for filtering 1639 inbound multicast traffic according to group membership and source 1640 filters. The imo_multicast_filter() KPI exists for this purpose. 1641 Transports which do not use multicast (SCTP, TCP) already reject 1642 multicast by default. Forwarding and receive performance may improve 1643 as a mutex acquisition is no longer needed in the ip_input() 1644 low-level input path. in_addmulti() and in_delmulti() are shimmed 1645 to new KPIs which exist to support SSM in-kernel. 1646 1647 For application developers, it is recommended that loopback of 1648 multicast datagrams be disabled for best performance, as this 1649 will still cause the lock to be taken for each looped-back 1650 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1651 be tuned to 0 to disable loopback by default; it defaults to 1 1652 to preserve the existing behaviour. 1653 1654 For systems administrators, to obtain best performance with 1655 multicast reception and multiple groups, it is always recommended 1656 that a card with a suitably precise hash filter is used. Hash 1657 collisions will still result in the lock being taken within the 1658 transport protocol input path to check group membership. 1659 1660 If deploying FreeBSD in an environment with IGMP snooping switches, 1661 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1662 enabled; this forces 224.0.0.0/24 group membership to be announced 1663 via IGMP. 1664 1665 The size of 'struct igmpstat' has changed; netstat needs to be 1666 recompiled to reflect this. 1667 Bump __FreeBSD_version to 800070. 1668 166920090309: 1670 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1671 updated to use it. This requires a buildworld/installworld in order to 1672 update the library and dependencies (usbconfig, etc). Its advisable to 1673 rebuild all ports which uses libusb. More specific directions are given 1674 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1675 libusb are no longer required and can be removed. 1676 167720090302: 1678 A workaround is committed to allow the creation of System V shared 1679 memory segment of size > 2 GB on the 64-bit architectures. 1680 Due to a limitation of the existing ABI, the shm_segsz member 1681 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1682 wrong for large segments. Note that limits must be explicitly 1683 raised to allow such segments to be created. 1684 168520090301: 1686 The layout of struct ifnet has changed, requiring a rebuild of all 1687 network device driver modules. 1688 168920090227: 1690 The /dev handling for the new USB stack has changed, a 1691 buildworld/installworld is required for libusb20. 1692 169320090223: 1694 The new USB2 stack has now been permanently moved in and all kernel and 1695 module names reverted to their previous values (eg, usb, ehci, ohci, 1696 ums, ...). The old usb stack can be compiled in by prefixing the name 1697 with the letter 'o', the old usb modules have been removed. 1698 Updating entry 20090216 for xorg and 20090215 for libmap may still 1699 apply. 1700 170120090217: 1702 The rc.conf(5) option if_up_delay has been renamed to 1703 defaultroute_delay to better reflect its purpose. If you have 1704 customized this setting in /etc/rc.conf you need to update it to 1705 use the new name. 1706 170720090216: 1708 xorg 7.4 wants to configure its input devices via hald which does not 1709 yet work with USB2. If the keyboard/mouse does not work in xorg then 1710 add 1711 Option "AllowEmptyInput" "off" 1712 to your ServerLayout section. This will cause X to use the configured 1713 kbd and mouse sections from your xorg.conf. 1714 171520090215: 1716 The GENERIC kernels for all architectures now default to the new USB2 1717 stack. No kernel config options or code have been removed so if a 1718 problem arises please report it and optionally revert to the old USB 1719 stack. If you are loading USB kernel modules or have a custom kernel 1720 that includes GENERIC then ensure that usb names are also changed over, 1721 eg uftdi -> usb2_serial_ftdi. 1722 1723 Older programs linked against the ports libusb 0.1 need to be 1724 redirected to the new stack's libusb20. /etc/libmap.conf can 1725 be used for this: 1726 # Map old usb library to new one for usb2 stack 1727 libusb-0.1.so.8 libusb20.so.1 1728 172920090209: 1730 All USB ethernet devices now attach as interfaces under the name ueN 1731 (eg. ue0). This is to provide a predictable name as vendors often 1732 change usb chipsets in a product without notice. 1733 173420090203: 1735 The ichsmb(4) driver has been changed to require SMBus slave 1736 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1737 All of the other SMBus controller drivers require left-justified 1738 slave addresses, so this change makes all the drivers provide the 1739 same interface. 1740 174120090201: 1742 INET6 statistics (struct ip6stat) was updated. 1743 netstat(1) needs to be recompiled. 1744 174520090119: 1746 NTFS has been removed from GENERIC kernel on amd64 to match 1747 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1748 will load ntfs.ko module automatically when NTFS support is 1749 actually needed, unless ntfs.ko is not installed or security 1750 level prohibits loading kernel modules. If either is the case, 1751 "options NTFS" has to be added into kernel config. 1752 175320090115: 1754 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1755 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1756 800061. User space tools that rely on the size of struct tcpcb in 1757 tcp_var.h (e.g. sockstat) need to be recompiled. 1758 175920081225: 1760 ng_tty(4) module updated to match the new TTY subsystem. 1761 Due to API change, user-level applications must be updated. 1762 New API support added to mpd5 CVS and expected to be present 1763 in next mpd5.3 release. 1764 176520081219: 1766 With __FreeBSD_version 800060 the makefs tool is part of 1767 the base system (it was a port). 1768 176920081216: 1770 The afdata and ifnet locks have been changed from mutexes to 1771 rwlocks, network modules will need to be re-compiled. 1772 177320081214: 1774 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1775 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1776 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1777 architecture and 40 bytes on 64-bit architecture. The userland 1778 applications "arp" and "ndp" have been updated accordingly. 1779 The output from "netstat -r" shows only routing entries and 1780 none of the L2 information. 1781 178220081130: 1783 __FreeBSD_version 800057 marks the switchover from the 1784 binary ath hal to source code. Users must add the line: 1785 1786 options AH_SUPPORT_AR5416 1787 1788 to their kernel config files when specifying: 1789 1790 device ath_hal 1791 1792 The ath_hal module no longer exists; the code is now compiled 1793 together with the driver in the ath module. It is now 1794 possible to tailor chip support (i.e. reduce the set of chips 1795 and thereby the code size); consult ath_hal(4) for details. 1796 179720081121: 1798 __FreeBSD_version 800054 adds memory barriers to 1799 <machine/atomic.h>, new interfaces to ifnet to facilitate 1800 multiple hardware transmit queues for cards that support 1801 them, and a lock-less ring-buffer implementation to 1802 enable drivers to more efficiently manage queueing of 1803 packets. 1804 180520081117: 1806 A new version of ZFS (version 13) has been merged to -HEAD. 1807 This version has zpool attribute "listsnapshots" off by 1808 default, which means "zfs list" does not show snapshots, 1809 and is the same as Solaris behavior. 1810 181120081028: 1812 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1813 181420081009: 1815 The uhci, ohci, ehci and slhci USB Host controller drivers have 1816 been put into separate modules. If you load the usb module 1817 separately through loader.conf you will need to load the 1818 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1819 controller add the following to loader.conf: 1820 1821 uhci_load="YES" 1822 ehci_load="YES" 1823 182420081009: 1825 The ABI used by the PMC toolset has changed. Please keep 1826 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1827 sync. 1828 182920081009: 1830 atapci kernel module now includes only generic PCI ATA 1831 driver. AHCI driver moved to ataahci kernel module. 1832 All vendor-specific code moved into separate kernel modules: 1833 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1834 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1835 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1836 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1837 183820080820: 1839 The TTY subsystem of the kernel has been replaced by a new 1840 implementation, which provides better scalability and an 1841 improved driver model. Most common drivers have been migrated to 1842 the new TTY subsystem, while others have not. The following 1843 drivers have not yet been ported to the new TTY layer: 1844 1845 PCI/ISA: 1846 cy, digi, rc, rp, sio 1847 1848 USB: 1849 ubser, ucycom 1850 1851 Line disciplines: 1852 ng_h4, ng_tty, ppp, sl, snp 1853 1854 Adding these drivers to your kernel configuration file shall 1855 cause compilation to fail. 1856 185720080818: 1858 ntpd has been upgraded to 4.2.4p5. 1859 186020080801: 1861 OpenSSH has been upgraded to 5.1p1. 1862 1863 For many years, FreeBSD's version of OpenSSH preferred DSA 1864 over RSA for host and user authentication keys. With this 1865 upgrade, we've switched to the vendor's default of RSA over 1866 DSA. This may cause upgraded clients to warn about unknown 1867 host keys even for previously known hosts. Users should 1868 follow the usual procedure for verifying host keys before 1869 accepting the RSA key. 1870 1871 This can be circumvented by setting the "HostKeyAlgorithms" 1872 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1873 command line. 1874 1875 Please note that the sequence of keys offered for 1876 authentication has been changed as well. You may want to 1877 specify IdentityFile in a different order to revert this 1878 behavior. 1879 188020080713: 1881 The sio(4) driver has been removed from the i386 and amd64 1882 kernel configuration files. This means uart(4) is now the 1883 default serial port driver on those platforms as well. 1884 1885 To prevent collisions with the sio(4) driver, the uart(4) driver 1886 uses different names for its device nodes. This means the 1887 onboard serial port will now most likely be called "ttyu0" 1888 instead of "ttyd0". You may need to reconfigure applications to 1889 use the new device names. 1890 1891 When using the serial port as a boot console, be sure to update 1892 /boot/device.hints and /etc/ttys before booting the new kernel. 1893 If you forget to do so, you can still manually specify the hints 1894 at the loader prompt: 1895 1896 set hint.uart.0.at="isa" 1897 set hint.uart.0.port="0x3F8" 1898 set hint.uart.0.flags="0x10" 1899 set hint.uart.0.irq="4" 1900 boot -s 1901 190220080609: 1903 The gpt(8) utility has been removed. Use gpart(8) to partition 1904 disks instead. 1905 190620080603: 1907 The version that Linuxulator emulates was changed from 2.4.2 1908 to 2.6.16. If you experience any problems with Linux binaries 1909 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1910 if it fixes the problem contact emulation mailing list. 1911 191220080525: 1913 ISDN4BSD (I4B) was removed from the src tree. You may need to 1914 update a your kernel configuration and remove relevant entries. 1915 191620080509: 1917 I have checked in code to support multiple routing tables. 1918 See the man pages setfib(1) and setfib(2). 1919 This is a hopefully backwards compatible version, 1920 but to make use of it you need to compile your kernel 1921 with options ROUTETABLES=2 (or more up to 16). 1922 192320080420: 1924 The 802.11 wireless support was redone to enable multi-bss 1925 operation on devices that are capable. The underlying device 1926 is no longer used directly but instead wlanX devices are 1927 cloned with ifconfig. This requires changes to rc.conf files. 1928 For example, change: 1929 ifconfig_ath0="WPA DHCP" 1930 to 1931 wlans_ath0=wlan0 1932 ifconfig_wlan0="WPA DHCP" 1933 see rc.conf(5) for more details. In addition, mergemaster of 1934 /etc/rc.d is highly recommended. Simultaneous update of userland 1935 and kernel wouldn't hurt either. 1936 1937 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1938 modules were merged into the base wlan module. All references 1939 to these modules (e.g. in kernel config files) must be removed. 1940 194120080408: 1942 psm(4) has gained write(2) support in native operation level. 1943 Arbitrary commands can be written to /dev/psm%d and status can 1944 be read back from it. Therefore, an application is responsible 1945 for status validation and error recovery. It is a no-op in 1946 other operation levels. 1947 194820080312: 1949 Support for KSE threading has been removed from the kernel. To 1950 run legacy applications linked against KSE libmap.conf may 1951 be used. The following libmap.conf may be used to ensure 1952 compatibility with any prior release: 1953 1954 libpthread.so.1 libthr.so.1 1955 libpthread.so.2 libthr.so.2 1956 libkse.so.3 libthr.so.3 1957 195820080301: 1959 The layout of struct vmspace has changed. This affects libkvm 1960 and any executables that link against libkvm and use the 1961 kvm_getprocs() function. In particular, but not exclusively, 1962 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1963 The effects are minimal, but it's advisable to upgrade world 1964 nonetheless. 1965 196620080229: 1967 The latest em driver no longer has support in it for the 1968 82575 adapter, this is now moved to the igb driver. The 1969 split was done to make new features that are incompatible 1970 with older hardware easier to do. 1971 197220080220: 1973 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1974 likewise the kernel option is now GEOM_LINUX_LVM. 1975 197620080211: 1977 The default NFS mount mode has changed from UDP to TCP for 1978 increased reliability. If you rely on (insecurely) NFS 1979 mounting across a firewall you may need to update your 1980 firewall rules. 1981 198220080208: 1983 Belatedly note the addition of m_collapse for compacting 1984 mbuf chains. 1985 198620080126: 1987 The fts(3) structures have been changed to use adequate 1988 integer types for their members and so to be able to cope 1989 with huge file trees. The old fts(3) ABI is preserved 1990 through symbol versioning in libc, so third-party binaries 1991 using fts(3) should still work, although they will not take 1992 advantage of the extended types. At the same time, some 1993 third-party software might fail to build after this change 1994 due to unportable assumptions made in its source code about 1995 fts(3) structure members. Such software should be fixed 1996 by its vendor or, in the worst case, in the ports tree. 1997 FreeBSD_version 800015 marks this change for the unlikely 1998 case that a portable fix is impossible. 1999 200020080123: 2001 To upgrade to -current after this date, you must be running 2002 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2003 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2004 200520071128: 2006 The ADAPTIVE_GIANT kernel option has been retired because its 2007 functionality is the default now. 2008 200920071118: 2010 The AT keyboard emulation of sunkbd(4) has been turned on 2011 by default. In order to make the special symbols of the Sun 2012 keyboards driven by sunkbd(4) work under X these now have 2013 to be configured the same way as Sun USB keyboards driven 2014 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2015 2016 Option "XkbLayout" "us" 2017 Option "XkbRules" "xorg" 2018 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2019 202020071024: 2021 It has been decided that it is desirable to provide ABI 2022 backwards compatibility to the FreeBSD 4/5/6 versions of the 2023 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2024 broken with the introduction of PCI domain support (see the 2025 20070930 entry). Unfortunately, this required the ABI of 2026 PCIOCGETCONF to be broken again in order to be able to 2027 provide backwards compatibility to the old version of that 2028 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2029 again. As for prominent ports this affects neither pciutils 2030 nor xorg-server this time, the hal port needs to be rebuilt 2031 however. 2032 203320071020: 2034 The misnamed kthread_create() and friends have been renamed 2035 to kproc_create() etc. Many of the callers already 2036 used kproc_start().. 2037 I will return kthread_create() and friends in a while 2038 with implementations that actually create threads, not procs. 2039 Renaming corresponds with version 800002. 2040 204120071010: 2042 RELENG_7 branched. 2043 2044COMMON ITEMS: 2045 2046 General Notes 2047 ------------- 2048 Avoid using make -j when upgrading. While generally safe, there are 2049 sometimes problems using -j to upgrade. If your upgrade fails with 2050 -j, please try again without -j. From time to time in the past there 2051 have been problems using -j with buildworld and/or installworld. This 2052 is especially true when upgrading between "distant" versions (eg one 2053 that cross a major release boundary or several minor releases, or when 2054 several months have passed on the -current branch). 2055 2056 Sometimes, obscure build problems are the result of environment 2057 poisoning. This can happen because the make utility reads its 2058 environment when searching for values for global variables. To run 2059 your build attempts in an "environmental clean room", prefix all make 2060 commands with 'env -i '. See the env(1) manual page for more details. 2061 2062 When upgrading from one major version to another it is generally best 2063 to upgrade to the latest code in the currently installed branch first, 2064 then do an upgrade to the new branch. This is the best-tested upgrade 2065 path, and has the highest probability of being successful. Please try 2066 this approach before reporting problems with a major version upgrade. 2067 2068 When upgrading a live system, having a root shell around before 2069 installing anything can help undo problems. Not having a root shell 2070 around can lead to problems if pam has changed too much from your 2071 starting point to allow continued authentication after the upgrade. 2072 2073 ZFS notes 2074 --------- 2075 When upgrading the boot ZFS pool to a new version, always follow 2076 these two steps: 2077 2078 1.) recompile and reinstall the ZFS boot loader and boot block 2079 (this is part of "make buildworld" and "make installworld") 2080 2081 2.) update the ZFS boot block on your boot drive 2082 2083 The following example updates the ZFS boot block on the first 2084 partition (freebsd-boot) of a GPT partitioned drive ad0: 2085 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2086 2087 Non-boot pools do not need these updates. 2088 2089 To build a kernel 2090 ----------------- 2091 If you are updating from a prior version of FreeBSD (even one just 2092 a few days old), you should follow this procedure. It is the most 2093 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2094 2095 make kernel-toolchain 2096 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2097 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2098 2099 To test a kernel once 2100 --------------------- 2101 If you just want to boot a kernel once (because you are not sure 2102 if it works, or if you want to boot a known bad kernel to provide 2103 debugging information) run 2104 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2105 nextboot -k testkernel 2106 2107 To just build a kernel when you know that it won't mess you up 2108 -------------------------------------------------------------- 2109 This assumes you are already running a CURRENT system. Replace 2110 ${arch} with the architecture of your machine (e.g. "i386", 2111 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2112 2113 cd src/sys/${arch}/conf 2114 config KERNEL_NAME_HERE 2115 cd ../compile/KERNEL_NAME_HERE 2116 make depend 2117 make 2118 make install 2119 2120 If this fails, go to the "To build a kernel" section. 2121 2122 To rebuild everything and install it on the current system. 2123 ----------------------------------------------------------- 2124 # Note: sometimes if you are running current you gotta do more than 2125 # is listed here if you are upgrading from a really old current. 2126 2127 <make sure you have good level 0 dumps> 2128 make buildworld 2129 make kernel KERNCONF=YOUR_KERNEL_HERE 2130 [1] 2131 <reboot in single user> [3] 2132 mergemaster -p [5] 2133 make installworld 2134 mergemaster -i [4] 2135 make delete-old [6] 2136 <reboot> 2137 2138 To cross-install current onto a separate partition 2139 -------------------------------------------------- 2140 # In this approach we use a separate partition to hold 2141 # current's root, 'usr', and 'var' directories. A partition 2142 # holding "/", "/usr" and "/var" should be about 2GB in 2143 # size. 2144 2145 <make sure you have good level 0 dumps> 2146 <boot into -stable> 2147 make buildworld 2148 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2149 <maybe newfs current's root partition> 2150 <mount current's root partition on directory ${CURRENT_ROOT}> 2151 make installworld DESTDIR=${CURRENT_ROOT} 2152 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2153 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2154 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2155 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2156 <reboot into current> 2157 <do a "native" rebuild/install as described in the previous section> 2158 <maybe install compatibility libraries from ports/misc/compat*> 2159 <reboot> 2160 2161 2162 To upgrade in-place from stable to current 2163 ---------------------------------------------- 2164 <make sure you have good level 0 dumps> 2165 make buildworld [9] 2166 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2167 [1] 2168 <reboot in single user> [3] 2169 mergemaster -p [5] 2170 make installworld 2171 mergemaster -i [4] 2172 make delete-old [6] 2173 <reboot> 2174 2175 Make sure that you've read the UPDATING file to understand the 2176 tweaks to various things you need. At this point in the life 2177 cycle of current, things change often and you are on your own 2178 to cope. The defaults can also change, so please read ALL of 2179 the UPDATING entries. 2180 2181 Also, if you are tracking -current, you must be subscribed to 2182 freebsd-current@freebsd.org. Make sure that before you update 2183 your sources that you have read and understood all the recent 2184 messages there. If in doubt, please track -stable which has 2185 much fewer pitfalls. 2186 2187 [1] If you have third party modules, such as vmware, you 2188 should disable them at this point so they don't crash your 2189 system on reboot. 2190 2191 [3] From the bootblocks, boot -s, and then do 2192 fsck -p 2193 mount -u / 2194 mount -a 2195 cd src 2196 adjkerntz -i # if CMOS is wall time 2197 Also, when doing a major release upgrade, it is required that 2198 you boot into single user mode to do the installworld. 2199 2200 [4] Note: This step is non-optional. Failure to do this step 2201 can result in a significant reduction in the functionality of the 2202 system. Attempting to do it by hand is not recommended and those 2203 that pursue this avenue should read this file carefully, as well 2204 as the archives of freebsd-current and freebsd-hackers mailing lists 2205 for potential gotchas. The -U option is also useful to consider. 2206 See mergemaster(8) for more information. 2207 2208 [5] Usually this step is a noop. However, from time to time 2209 you may need to do this if you get unknown user in the following 2210 step. It never hurts to do it all the time. You may need to 2211 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2212 install) after the buildworld before this step if you last updated 2213 from current before 20130425 or from -stable before 20130430. 2214 2215 [6] This only deletes old files and directories. Old libraries 2216 can be deleted by "make delete-old-libs", but you have to make 2217 sure that no program is using those libraries anymore. 2218 2219 [8] In order to have a kernel that can run the 4.x binaries needed to 2220 do an installworld, you must include the COMPAT_FREEBSD4 option in 2221 your kernel. Failure to do so may leave you with a system that is 2222 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2223 required to run the 5.x binaries on more recent kernels. And so on 2224 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2225 2226 Make sure that you merge any new devices from GENERIC since the 2227 last time you updated your kernel config file. 2228 2229 [9] When checking out sources, you must include the -P flag to have 2230 cvs prune empty directories. 2231 2232 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2233 "?=" instead of the "=" assignment operator, so that buildworld can 2234 override the CPUTYPE if it needs to. 2235 2236 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2237 not on the command line, or in /etc/make.conf. buildworld will 2238 warn if it is improperly defined. 2239FORMAT: 2240 2241This file contains a list, in reverse chronological order, of major 2242breakages in tracking -current. It is not guaranteed to be a complete 2243list of such breakages, and only contains entries since October 10, 2007. 2244If you need to see UPDATING entries from before that date, you will need 2245to fetch an UPDATING file from an older FreeBSD release. 2246 2247Copyright information: 2248 2249Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2250 2251Redistribution, publication, translation and use, with or without 2252modification, in full or in part, in any form or format of this 2253document are permitted without further permission from the author. 2254 2255THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2256IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2257WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2258DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2259INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2260(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2261SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2262HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2263STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2264IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2265POSSIBILITY OF SUCH DAMAGE. 2266 2267Contact Warner Losh if you have any questions about your use of 2268this document. 2269 2270$FreeBSD: releng/10.1/UPDATING 286351 2015-08-05 22:05:18Z delphij $ 2271