UPDATING revision 284985
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 1920150630: p14 FreeBSD-EN-15:08.sendmail [revised] 20 FreeBSD-EN-15:09.xlocale 21 FreeBSD-EN-15:10.iconv 22 23 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 24 25 Fix inconsistency between locale and rune locale states. 26 [EN-15:09] 27 28 Improved iconv(3) UTF-7 support. [EN-15:10] 29 3020150618: p13 FreeBSD-EN-15:08.sendmail 31 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 32 3320150612: p12 FreeBSD-SA-15:10.openssl 34 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 35 3620150609: p11 FreeBSD-EN-15:06.file 37 FreeBSD-EN-15:07.zfs 38 39 Updated base system file(1) to 5.22 to address multiple denial 40 of service issues. [EN-15:06] 41 42 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 43 [EN-15:07] 44 4520150513: p10 FreeBSD-EN-15:04.freebsd-update 46 FreeBSD-EN-15:05.ufs 47 48 Fix bug with freebsd-update(8) that does not ensure the previous 49 upgrade was completed. [EN-15:04] 50 51 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 52 5320150407: p9 FreeBSD-SA-15:04.igmp [revised] 54 FreeBSD-SA-15:07.ntp 55 FreeBSD-SA-15:08.bsdinstall 56 FreeBSD-SA-15:09.ipv6 57 58 Improved patch for SA-15:04.igmp. 59 60 Fix multiple vulnerabilities of ntp. [SA-15:07] 61 62 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 63 64 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 65 6620150320: p8 67 Fix patch for SA-15:06.openssl. 68 6920150319: p7 FreeBSD-SA-15:06.openssl 70 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 71 7220150225: p6 FreeBSD-SA-15:04.igmp 73 FreeBSD-EN-15:01.vt 74 FreeBSD-EN-15:02.openssl 75 FreeBSD-EN-15:03.freebsd-update 76 77 Fix integer overflow in IGMP protocol. [SA-15:04] 78 79 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 80 81 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 82 83 Fix freebsd-update libraries update ordering issue. [EN-15:03] 84 8520150127: p5 FreeBSD-SA-15:02.kmem 86 FreeBSD-SA-15:03.sctp 87 88 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 89 vulnerability. [SA-15:02] 90 91 Fix SCTP stream reset vulnerability. [SA-15:03] 92 9320150114: p4 FreeBSD-SA-15:01.openssl 94 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 95 9620141223: p3 FreeBSD-SA-14:31.ntp 97 FreeBSD-EN-14:13.freebsd-update 98 99 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 100 Fix directory deletion issue in freebsd-update. [EN-14:13] 101 10220141217: p2 FreeBSD-SA-14:30.unbound 103 Fix unbound remote denial of service vulnerability. 104 10520141210: p1 FreeBSD-SA-14:27.stdio 106 FreeBSD-SA-14:28.file 107 108 Fix buffer overflow in stdio. [SA-14:27] 109 110 Fix multiple vulnerabilities in file(1) and libmagic(3). 111 [SA-14:28] 112 11320140904: 114 The ofwfb driver, used to provide a graphics console on PowerPC when 115 using vt(4), no longer allows mmap() of all of physical memory. This 116 will prevent Xorg on PowerPC with some ATI graphics cards from 117 initializing properly unless x11-servers/xorg-server is updated to 118 1.12.4_8 or newer. 119 12020140831: 121 The libatf-c and libatf-c++ major versions were downgraded to 0 and 122 1 respectively to match the upstream numbers. They were out of 123 sync because, when they were originally added to FreeBSD, the 124 upstream versions were not respected. These libraries are private 125 and not yet built by default, so renumbering them should be a 126 non-issue. However, unclean source trees will yield broken test 127 programs once the operator executes "make delete-old-libs" after a 128 "make installworld". 129 130 Additionally, the atf-sh binary was made private by moving it into 131 /usr/libexec/. Already-built shell test programs will keep the 132 path to the old binary so they will break after "make delete-old" 133 is run. 134 135 If you are using WITH_TESTS=yes (not the default), wipe the object 136 tree and rebuild from scratch to prevent spurious test failures. 137 This is only needed once: the misnumbered libraries and misplaced 138 binaries have been added to OptionalObsoleteFiles.inc so they will 139 be removed during a clean upgrade. 140 14120140814: 142 The ixgbe tunables now match their sysctl counterparts, for example: 143 hw.ixgbe.enable_aim => hw.ix.enable_aim 144 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 145 14620140801: 147 The NFSv4.1 server committed by r269398 changes the internal 148 function call interfaces used between the NFS and krpc modules. 149 As such, __FreeBSD_version was bumped. 150 15120140729: 152 The default unbound configuration has been modified to address 153 issues with reverse lookups on networks that use private 154 address ranges. If you use the local_unbound service, run 155 "service local_unbound setup" as root to regenerate your 156 configuration, then "service local_unbound reload" to load the 157 new configuration. 158 15920140717: 160 It is no longer necessary to include the dwarf version in your DEBUG 161 options in your kernel config file. The bug that required it to be 162 placed in the config file has bene fixed. DEBUG should now just 163 contain -g. The build system will automatically update things 164 to do the right thing. 165 16620140715: 167 Several ABI breaking changes were merged to CTL and new iSCSI code. 168 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 169 iscsictl need to be rebuilt to work with a new kernel. 170 17120140708: 172 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 173 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 174 which differs from the behaviour controlled by this knob.) 175 17620140608: 177 On i386 and amd64 systems, the onifconsole flag is now set by default 178 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 179 as a login TTY if it is set in the bootloader as an active kernel 180 console. No changes in behavior should result otherwise. To revert to 181 the previous behavior, set ttyu0 to "off" in /etc/ttys. 182 18320140512: 184 Clang and llvm have been upgraded to 3.4.1 release. 185 18620140321: 187 Clang and llvm have been upgraded to 3.4 release. 188 18920140306: 190 If a Makefile in a tests/ directory was auto-generating a Kyuafile 191 instead of providing an explicit one, this would prevent such 192 Makefile from providing its own Kyuafile in the future during 193 NO_CLEAN builds. This has been fixed in the Makefiles but manual 194 intervention is needed to clean an objdir if you use NO_CLEAN: 195 # find /usr/obj -name Kyuafile | xargs rm -f 196 19720140303: 198 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 199 capability mode support. Please note that enabling the feature in 200 kernel is still highly recommended. 201 20220140227: 203 OpenSSH is now built with sandbox support, and will use sandbox as 204 the default privilege separation method. This requires Capsicum 205 capability mode support in kernel. 206 20720140216: 208 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 209 been deprecated and will not be part of FreeBSD 11.0 and later 210 releases. If you use this driver, please consider switching to 211 the nfe(4) driver instead. 212 21320140120: 214 10.0-RELEASE. 215 21620131216: 217 The behavior of gss_pseudo_random() for the krb5 mechanism 218 has changed, for applications requesting a longer random string 219 than produced by the underlying enctype's pseudo-random() function. 220 In particular, the random string produced from a session key of 221 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 222 be different at the 17th octet and later, after this change. 223 The counter used in the PRF+ construction is now encoded as a 224 big-endian integer in accordance with RFC 4402. 225 __FreeBSD_version is bumped to 1000701. 226 22720131108: 228 The WITHOUT_ATF build knob has been removed and its functionality 229 has been subsumed into the more generic WITHOUT_TESTS. If you were 230 using the former to disable the build of the ATF libraries, you 231 should change your settings to use the latter. 232 23320131031: 234 The default version of mtree is nmtree which is obtained from 235 NetBSD. The output is generally the same, but may vary 236 slightly. If you found you need identical output adding 237 "-F freebsd9" to the command line should do the trick. For the 238 time being, the old mtree is available as fmtree. 239 24020131014: 241 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 242 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 243 1.1.4_8 and verify bsdyml not linked in, before running "make 244 delete-old-libs": 245 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 246 or 247 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 248 24920131010: 250 The rc.d/jail script has been updated to support jail(8) 251 configuration file. The "jail_<jname>_*" rc.conf(5) variables 252 for per-jail configuration are automatically converted to 253 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 254 This is transparently backward compatible. See below about some 255 incompatibilities and rc.conf(5) manual page for more details. 256 257 These variables are now deprecated in favor of jail(8) configuration 258 file. One can use "rc.d/jail config <jname>" command to generate 259 a jail(8) configuration file in /var/run/jail.<jname>.conf without 260 running the jail(8) utility. The default pathname of the 261 configuration file is /etc/jail.conf and can be specified by 262 using $jail_conf or $jail_<jname>_conf variables. 263 264 Please note that jail_devfs_ruleset accepts an integer at 265 this moment. Please consider to rewrite the ruleset name 266 with an integer. 267 26820130930: 269 BIND has been removed from the base system. If all you need 270 is a local resolver, simply enable and start the local_unbound 271 service instead. Otherwise, several versions of BIND are 272 available in the ports tree. The dns/bind99 port is one example. 273 274 With this change, nslookup(1) and dig(1) are no longer in the base 275 system. Users should instead use host(1) and drill(1) which are 276 in the base system. Alternatively, nslookup and dig can 277 be obtained by installing the dns/bind-tools port. 278 27920130916: 280 With the addition of unbound(8), a new unbound user is now 281 required during installworld. "mergemaster -p" can be used to 282 add the user prior to installworld, as documented in the handbook. 283 28420130911: 285 OpenSSH is now built with DNSSEC support, and will by default 286 silently trust signed SSHFP records. This can be controlled with 287 the VerifyHostKeyDNS client configuration setting. DNSSEC support 288 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 289 29020130906: 291 The GNU Compiler Collection and C++ standard library (libstdc++) 292 are no longer built by default on platforms where clang is the system 293 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 294 options in src.conf. 295 29620130905: 297 The PROCDESC kernel option is now part of the GENERIC kernel 298 configuration and is required for the rwhod(8) to work. 299 If you are using custom kernel configuration, you should include 300 'options PROCDESC'. 301 30220130905: 303 The API and ABI related to the Capsicum framework was modified 304 in backward incompatible way. The userland libraries and programs 305 have to be recompiled to work with the new kernel. This includes the 306 following libraries and programs, but the whole buildworld is 307 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 308 kdump, procstat, rwho, rwhod, uniq. 309 31020130903: 311 AES-NI intrinsic support has been added to gcc. The AES-NI module 312 has been updated to use this support. A new gcc is required to build 313 the aesni module on both i386 and amd64. 314 31520130821: 316 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 317 Thus "device padlock_rng" and "device rdrand_rng" should be 318 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 319 32020130813: 321 WITH_ICONV has been split into two feature sets. WITH_ICONV now 322 enables just the iconv* functionality and is now on by default. 323 WITH_LIBICONV_COMPAT enables the libiconv api and link time 324 compatability. Set WITHOUT_ICONV to build the old way. 325 If you have been using WITH_ICONV before, you will very likely 326 need to turn on WITH_LIBICONV_COMPAT. 327 32820130806: 329 INVARIANTS option now enables DEBUG for code with OpenSolaris and 330 Illumos origin, including ZFS. If you have INVARIANTS in your 331 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 332 explicitly. 333 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 334 locks if WITNESS option was set. Because that generated a lot of 335 witness(9) reports and all of them were believed to be false 336 positives, this is no longer done. New option OPENSOLARIS_WITNESS 337 can be used to achieve the previous behavior. 338 33920130806: 340 Timer values in IPv6 data structures now use time_uptime instead 341 of time_second. Although this is not a user-visible functional 342 change, userland utilities which directly use them---ndp(8), 343 rtadvd(8), and rtsold(8) in the base system---need to be updated 344 to r253970 or later. 345 34620130802: 347 find -delete can now delete the pathnames given as arguments, 348 instead of only files found below them or if the pathname did 349 not contain any slashes. Formerly, the following error message 350 would result: 351 352 find: -delete: <path>: relative path potentially not safe 353 354 Deleting the pathnames given as arguments can be prevented 355 without error messages using -mindepth 1 or by changing 356 directory and passing "." as argument to find. This works in the 357 old as well as the new version of find. 358 35920130726: 360 Behavior of devfs rules path matching has been changed. 361 Pattern is now always matched against fully qualified devfs 362 path and slash characters must be explicitly matched by 363 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 364 subdirectories must be reviewed. 365 36620130716: 367 The default ARM ABI has changed to the ARM EABI. The old ABI is 368 incompatible with the ARM EABI and all programs and modules will 369 need to be rebuilt to work with a new kernel. 370 371 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 372 373 NOTE: Support for the old ABI will be removed in the future and 374 users are advised to upgrade. 375 37620130709: 377 pkg_install has been disconnected from the build if you really need it 378 you should add WITH_PKGTOOLS in your src.conf(5). 379 38020130709: 381 Most of network statistics structures were changed to be able 382 keep 64-bits counters. Thus all tools, that work with networking 383 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 384 38520130629: 386 Fix targets that run multiple make's to use && rather than ; 387 so that subsequent steps depend on success of previous. 388 389 NOTE: if building 'universe' with -j* on stable/8 or stable/9 390 it would be better to start the build using bmake, to avoid 391 overloading the machine. 392 39320130618: 394 Fix a bug that allowed a tracing process (e.g. gdb) to write 395 to a memory-mapped file in the traced process's address space 396 even if neither the traced process nor the tracing process had 397 write access to that file. 398 39920130615: 400 CVS has been removed from the base system. An exact copy 401 of the code is available from the devel/cvs port. 402 40320130613: 404 Some people report the following error after the switch to bmake: 405 406 make: illegal option -- J 407 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 408 ... 409 *** [buildworld] Error code 2 410 411 this likely due to an old instance of make in 412 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 413 which src/Makefile will use that blindly, if it exists, so if 414 you see the above error: 415 416 rm -rf `make -V MAKEPATH` 417 418 should resolve it. 419 42020130516: 421 Use bmake by default. 422 Whereas before one could choose to build with bmake via 423 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 424 make. The goal is to remove these knobs for 10-RELEASE. 425 426 It is worth noting that bmake (like gmake) treats the command 427 line as the unit of failure, rather than statements within the 428 command line. Thus '(cd some/where && dosomething)' is safer 429 than 'cd some/where; dosomething'. The '()' allows consistent 430 behavior in parallel build. 431 43220130429: 433 Fix a bug that allows NFS clients to issue READDIR on files. 434 43520130426: 436 The WITHOUT_IDEA option has been removed because 437 the IDEA patent expired. 438 43920130426: 440 The sysctl which controls TRIM support under ZFS has been renamed 441 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 442 enabled by default. 443 44420130425: 445 The mergemaster command now uses the default MAKEOBJDIRPREFIX 446 rather than creating it's own in the temporary directory in 447 order allow access to bootstrapped versions of tools such as 448 install and mtree. When upgrading from version of FreeBSD where 449 the install command does not support -l, you will need to 450 install a new mergemaster command if mergemaster -p is required. 451 This can be accomplished with the command (cd src/usr.sbin/mergemaster 452 && make install). 453 45420130404: 455 Legacy ATA stack, disabled and replaced by new CAM-based one since 456 FreeBSD 9.0, completely removed from the sources. Kernel modules 457 atadisk and atapi*, user-level tools atacontrol and burncd are 458 removed. Kernel option `options ATA_CAM` is now permanently enabled 459 and removed. 460 46120130319: 462 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 463 and socketpair(2). Software, in particular Kerberos, may 464 automatically detect and use these during building. The resulting 465 binaries will not work on older kernels. 466 46720130308: 468 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 469 information, see the respective 20130304 entry). 470 47120130304: 472 Recent commits to callout(9) changed the size of struct callout, 473 so the KBI is probably heavily disturbed. Also, some functions 474 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 475 by macros. Every kernel module using it won't load, so rebuild 476 is requested. 477 478 The ctl device has been re-enabled in GENERIC for i386 and amd64, 479 but does not initialize by default (because of the new CTL_DISABLE 480 option) to save memory. To re-enable it, remove the CTL_DISABLE 481 option from the kernel config file or set kern.cam.ctl.disable=0 482 in /boot/loader.conf. 483 48420130301: 485 The ctl device has been disabled in GENERIC for i386 and amd64. 486 This was done due to the extra memory being allocated at system 487 initialisation time by the ctl driver which was only used if 488 a CAM target device was created. This makes a FreeBSD system 489 unusable on 128MB or less of RAM. 490 49120130208: 492 A new compression method (lz4) has been merged to -HEAD. Please 493 refer to zpool-features(7) for more information. 494 495 Please refer to the "ZFS notes" section of this file for information 496 on upgrading boot ZFS pools. 497 49820130129: 499 A BSD-licensed patch(1) variant has been added and is installed 500 as bsdpatch, being the GNU version the default patch. 501 To inverse the logic and use the BSD-licensed one as default, 502 while having the GNU version installed as gnupatch, rebuild 503 and install world with the WITH_BSD_PATCH knob set. 504 50520130121: 506 Due to the use of the new -l option to install(1) during build 507 and install, you must take care not to directly set the INSTALL 508 make variable in your /etc/make.conf, /etc/src.conf, or on the 509 command line. If you wish to use the -C flag for all installs 510 you may be able to add INSTALL+=-C to /etc/make.conf or 511 /etc/src.conf. 512 51320130118: 514 The install(1) option -M has changed meaning and now takes an 515 argument that is a file or path to append logs to. In the 516 unlikely event that -M was the last option on the command line 517 and the command line contained at least two files and a target 518 directory the first file will have logs appended to it. The -M 519 option served little practical purpose in the last decade so its 520 use is expected to be extremely rare. 521 52220121223: 523 After switching to Clang as the default compiler some users of ZFS 524 on i386 systems started to experience stack overflow kernel panics. 525 Please consider using 'options KSTACK_PAGES=4' in such configurations. 526 52720121222: 528 GEOM_LABEL now mangles label names read from file system metadata. 529 Mangling affect labels containing spaces, non-printable characters, 530 '%' or '"'. Device names in /etc/fstab and other places may need to 531 be updated. 532 53320121217: 534 By default, only the 10 most recent kernel dumps will be saved. To 535 restore the previous behaviour (no limit on the number of kernel dumps 536 stored in the dump directory) add the following line to /etc/rc.conf: 537 538 savecore_flags="" 539 54020121201: 541 With the addition of auditdistd(8), a new auditdistd user is now 542 required during installworld. "mergemaster -p" can be used to 543 add the user prior to installworld, as documented in the handbook. 544 54520121117: 546 The sin6_scope_id member variable in struct sockaddr_in6 is now 547 filled by the kernel before passing the structure to the userland via 548 sysctl or routing socket. This means the KAME-specific embedded scope 549 id in sin6_addr.s6_addr[2] is always cleared in userland application. 550 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 551 __FreeBSD_version is bumped to 1000025. 552 55320121105: 554 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 555 This means that the world and kernel will be compiled with clang 556 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 557 and /usr/bin/cpp. To disable this behavior and revert to building 558 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 559 of current may need to bootstrap WITHOUT_CLANG first if the clang 560 build fails (its compatibility window doesn't extend to the 9 stable 561 branch point). 562 56320121102: 564 The IPFIREWALL_FORWARD kernel option has been removed. Its 565 functionality now turned on by default. 566 56720121023: 568 The ZERO_COPY_SOCKET kernel option has been removed and 569 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 570 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 571 mechanism which is not safe and may result in kernel crashes. 572 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 573 driver supports disposeable external page sized mbuf storage. 574 Proper replacements for both zero-copy mechanisms are under 575 consideration and will eventually lead to complete removal 576 of the two kernel options. 577 57820121023: 579 The IPv4 network stack has been converted to network byte 580 order. The following modules need to be recompiled together 581 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 582 pf(4), ipfw(4), ng_ipfw(4), stf(4). 583 58420121022: 585 Support for non-MPSAFE filesystems was removed from VFS. The 586 VFS_VERSION was bumped, all filesystem modules shall be 587 recompiled. 588 58920121018: 590 All the non-MPSAFE filesystems have been disconnected from 591 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 592 portalfs, smbfs, xfs. 593 59420121016: 595 The interface cloning API and ABI has changed. The following 596 modules need to be recompiled together with kernel: 597 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 598 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 599 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 600 60120121015: 602 The sdhci driver was split in two parts: sdhci (generic SD Host 603 Controller logic) and sdhci_pci (actual hardware driver). 604 No kernel config modifications are required, but if you 605 load sdhc as a module you must switch to sdhci_pci instead. 606 60720121014: 608 Import the FUSE kernel and userland support into base system. 609 61020121013: 611 The GNU sort(1) program has been removed since the BSD-licensed 612 sort(1) has been the default for quite some time and no serious 613 problems have been reported. The corresponding WITH_GNU_SORT 614 knob has also gone. 615 61620121006: 617 The pfil(9) API/ABI for AF_INET family has been changed. Packet 618 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 619 with new kernel. 620 62120121001: 622 The net80211(4) ABI has been changed to allow for improved driver 623 PS-POLL and power-save support. All wireless drivers need to be 624 recompiled to work with the new kernel. 625 62620120913: 627 The random(4) support for the VIA hardware random number 628 generator (`PADLOCK') is no longer enabled unconditionally. 629 Add the padlock_rng device in the custom kernel config if 630 needed. The GENERIC kernels on i386 and amd64 do include the 631 device, so the change only affects the custom kernel 632 configurations. 633 63420120908: 635 The pf(4) packet filter ABI has been changed. pfctl(8) and 636 snmp_pf module need to be recompiled to work with new kernel. 637 63820120828: 639 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 640 to -HEAD. Pools that have empty_bpobj in active state can not be 641 imported read-write with ZFS implementations that do not support 642 this feature. For more information read the zpool-features(5) 643 manual page. 644 64520120727: 646 The sparc64 ZFS loader has been changed to no longer try to auto- 647 detect ZFS providers based on diskN aliases but now requires these 648 to be explicitly listed in the OFW boot-device environment variable. 649 65020120712: 651 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 652 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 653 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 654 65520120712: 656 The following sysctls and tunables have been renamed for consistency 657 with other variables: 658 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 659 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 660 66120120628: 662 The sort utility has been replaced with BSD sort. For now, GNU sort 663 is also available as "gnusort" or the default can be set back to 664 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 665 installed as "bsdsort". 666 66720120611: 668 A new version of ZFS (pool version 5000) has been merged to -HEAD. 669 Starting with this version the old system of ZFS pool versioning 670 is superseded by "feature flags". This concept enables forward 671 compatibility against certain future changes in functionality of ZFS 672 pools. The first read-only compatible "feature flag" for ZFS pools 673 is named "com.delphix:async_destroy". For more information 674 read the new zpool-features(5) manual page. 675 Please refer to the "ZFS notes" section of this file for information 676 on upgrading boot ZFS pools. 677 67820120417: 679 The malloc(3) implementation embedded in libc now uses sources imported 680 as contrib/jemalloc. The most disruptive API change is to 681 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 682 delete it prior to installworld, and optionally re-create it using the 683 new format after rebooting. See malloc.conf(5) for details 684 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 685 NAMESPACE section). 686 68720120328: 688 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 689 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 690 now spelled mips. This is to aid compatibility with third-party 691 software that expects this naming scheme in uname(3). Little-endian 692 settings are unchanged. If you are updating a big-endian mips64 machine 693 from before this change, you may need to set MACHINE_ARCH=mips64 in 694 your environment before the new build system will recognize your machine. 695 69620120306: 697 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 698 platforms. 699 70020120229: 701 Now unix domain sockets behave "as expected" on nullfs(5). Previously 702 nullfs(5) did not pass through all behaviours to the underlying layer, 703 as a result if we bound to a socket on the lower layer we could connect 704 only to the lower path; if we bound to the upper layer we could connect 705 only to the upper path. The new behavior is one can connect to both the 706 lower and the upper paths regardless what layer path one binds to. 707 70820120211: 709 The getifaddrs upgrade path broken with 20111215 has been restored. 710 If you have upgraded in between 20111215 and 20120209 you need to 711 recompile libc again with your kernel. You still need to recompile 712 world to be able to configure CARP but this restriction already 713 comes from 20111215. 714 71520120114: 716 The set_rcvar() function has been removed from /etc/rc.subr. All 717 base and ports rc.d scripts have been updated, so if you have a 718 port installed with a script in /usr/local/etc/rc.d you can either 719 hand-edit the rcvar= line, or reinstall the port. 720 721 An easy way to handle the mass-update of /etc/rc.d: 722 rm /etc/rc.d/* && mergemaster -i 723 72420120109: 725 panic(9) now stops other CPUs in the SMP systems, disables interrupts 726 on the current CPU and prevents other threads from running. 727 This behavior can be reverted using the kern.stop_scheduler_on_panic 728 tunable/sysctl. 729 The new behavior can be incompatible with kern.sync_on_panic. 730 73120111215: 732 The carp(4) facility has been changed significantly. Configuration 733 of the CARP protocol via ifconfig(8) has changed, as well as format 734 of CARP events submitted to devd(8) has changed. See manual pages 735 for more information. The arpbalance feature of carp(4) is currently 736 not supported anymore. 737 738 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 739 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 740 need to be recompiled. 741 74220111122: 743 The acpi_wmi(4) status device /dev/wmistat has been renamed to 744 /dev/wmistat0. 745 74620111108: 747 The option VFS_ALLOW_NONMPSAFE option has been added in order to 748 explicitely support non-MPSAFE filesystems. 749 It is on by default for all supported platform at this present 750 time. 751 75220111101: 753 The broken amd(4) driver has been replaced with esp(4) in the amd64, 754 i386 and pc98 GENERIC kernel configuration files. 755 75620110930: 757 sysinstall has been removed 758 75920110923: 760 The stable/9 branch created in subversion. This corresponds to the 761 RELENG_9 branch in CVS. 762 76320110913: 764 This commit modifies vfs_register() so that it uses a hash 765 calculation to set vfc_typenum, which is enabled by default. 766 The first time a system is booted after this change, the 767 vfc_typenum values will change for all file systems. The 768 main effect of this is a change to the NFS server file handles 769 for file systems that use vfc_typenum in their fsid, such as ZFS. 770 It will, however, prevent vfc_typenum from changing when file 771 systems are loaded in a different order for subsequent reboots. 772 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 773 until you are ready to remount all NFS clients after a reboot. 774 77520110828: 776 Bump the shared library version numbers for libraries that 777 do not use symbol versioning, have changed the ABI compared 778 to stable/8 and which shared library version was not bumped. 779 Done as part of 9.0-RELEASE cycle. 780 78120110815: 782 During the merge of Capsicum features, the fget(9) KPI was modified. 783 This may require the rebuilding of out-of-tree device drivers -- 784 issues have been reported specifically with the nVidia device driver. 785 __FreeBSD_version is bumped to 900041. 786 787 Also, there is a period between 20110811 and 20110814 where the 788 special devices /dev/{stdin,stdout,stderr} did not work correctly. 789 Building world from a kernel during that window may not work. 790 79120110628: 792 The packet filter (pf) code has been updated to OpenBSD 4.5. 793 You need to update userland tools to be in sync with kernel. 794 This update breaks backward compatibility with earlier pfsync(4) 795 versions. Care must be taken when updating redundant firewall setups. 796 79720110608: 798 The following sysctls and tunables are retired on x86 platforms: 799 machdep.hlt_cpus 800 machdep.hlt_logical_cpus 801 The following sysctl is retired: 802 machdep.hyperthreading_allowed 803 The sysctls were supposed to provide a way to dynamically offline and 804 online selected CPUs on x86 platforms, but the implementation has not 805 been reliable especially with SCHED_ULE scheduler. 806 machdep.hyperthreading_allowed tunable is still available to ignore 807 hyperthreading CPUs at OS level. 808 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 809 where X is an APIC ID of a CPU. Be advised, though, that disabling 810 CPUs in non-uniform fashion will result in non-uniform topology and 811 may lead to sub-optimal system performance with SCHED_ULE, which is 812 a default scheduler. 813 81420110607: 815 cpumask_t type is retired and cpuset_t is used in order to describe 816 a mask of CPUs. 817 81820110531: 819 Changes to ifconfig(8) for dynamic address family detection mandate 820 that you are running a kernel of 20110525 or later. Make sure to 821 follow the update procedure to boot a new kernel before installing 822 world. 823 82420110513: 825 Support for sun4v architecture is officially dropped 826 82720110503: 828 Several KPI breaking changes have been committed to the mii(4) layer, 829 the PHY drivers and consequently some Ethernet drivers using mii(4). 830 This means that miibus.ko and the modules of the affected Ethernet 831 drivers need to be recompiled. 832 833 Note to kernel developers: Given that the OUI bit reversion problem 834 was fixed as part of these changes all mii(4) commits related to OUIs, 835 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 836 handling, no longer can be merged verbatim to stable/8 and previous 837 branches. 838 83920110430: 840 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 841 into their kernel configurations along with 'device pci'. 842 84320110427: 844 The default NFS client is now the new NFS client, so fstype "newnfs" 845 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 846 Although mounts via fstype "nfs" will usually work without userland 847 changes, it is recommended that the mount(8) and mount_nfs(8) 848 commands be rebuilt from sources and that a link to mount_nfs called 849 mount_oldnfs be created. The new client is compiled into the 850 kernel with "options NFSCL" and this is needed for diskless root 851 file systems. The GENERIC kernel configs have been changed to use 852 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 853 To use the regular/old client, you can "mount -t oldnfs ...". For 854 a diskless root file system, you must also include a line like: 855 856 vfs.root.mountfrom="oldnfs:" 857 858 in the boot/loader.conf on the root fs on the NFS server to make 859 a diskless root fs use the old client. 860 86120110424: 862 The GENERIC kernels for all architectures now default to the new 863 CAM-based ATA stack. It means that all legacy ATA drivers were 864 removed and replaced by respective CAM drivers. If you are using 865 ATA device names in /etc/fstab or other places, make sure to update 866 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 867 where 'Y's are the sequential numbers starting from zero for each type 868 in order of detection, unless configured otherwise with tunables, 869 see cam(4)). There will be symbolic links created in /dev/ to map 870 old adX devices to the respective adaY. They should provide basic 871 compatibility for file systems mounting in most cases, but they do 872 not support old user-level APIs and do not have respective providers 873 in GEOM. Consider using updated management tools with new device names. 874 875 It is possible to load devices ahci, ata, siis and mvs as modules, 876 but option ATA_CAM should remain in kernel configuration to make ata 877 module work as CAM driver supporting legacy ATA controllers. Device ata 878 still can be used in modular fashion (atacore + ...). Modules atadisk 879 and atapi* are not used and won't affect operation in ATA_CAM mode. 880 Note that to use CAM-based ATA kernel should include CAM devices 881 scbus, pass, da (or explicitly ada), cd and optionally others. All of 882 them are parts of the cam module. 883 884 ataraid(4) functionality is now supported by the RAID GEOM class. 885 To use it you can load geom_raid kernel module and use graid(8) tool 886 for management. Instead of /dev/arX device names, use /dev/raid/rX. 887 888 No kernel config options or code have been removed, so if a problem 889 arises, please report it and optionally revert to the old ATA stack. 890 In order to do it you can remove from the kernel config: 891 options ATA_CAM 892 device ahci 893 device mvs 894 device siis 895 , and instead add back: 896 device atadisk # ATA disk drives 897 device ataraid # ATA RAID drives 898 device atapicd # ATAPI CDROM drives 899 device atapifd # ATAPI floppy drives 900 device atapist # ATAPI tape drives 901 90220110423: 903 The default NFS server has been changed to the new server, which 904 was referred to as the experimental server. If you need to switch 905 back to the old NFS server, you must now put the "-o" option on 906 both the mountd and nfsd commands. This can be done using the 907 mountd_flags and nfs_server_flags rc.conf variables until an 908 update to the rc scripts is committed, which is coming soon. 909 91020110418: 911 The GNU Objective-C runtime library (libobjc), and other Objective-C 912 related components have been removed from the base system. If you 913 require an Objective-C library, please use one of the available ports. 914 91520110331: 916 ath(4) has been split into bus- and device- modules. if_ath contains 917 the HAL, the TX rate control and the network device code. if_ath_pci 918 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 919 contains the AHB glue. Users need to load both if_ath_pci and if_ath 920 in order to use ath on everything else. 921 922 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 923 need to load if_ath and if_ath_pci for ath(4) operation. 924 92520110314: 926 As part of the replacement of sysinstall, the process of building 927 release media has changed significantly. For details, please re-read 928 release(7), which has been updated to reflect the new build process. 929 93020110218: 931 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 932 is the last available version under GPLv2. It brings a number of new 933 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 934 4.1 and SSE 4.2), better support for powerpc64, a number of new 935 directives, and lots of other small improvements. See the ChangeLog 936 file in contrib/binutils for the full details. 937 93820110218: 939 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 940 compliant, and will now use half of hash for authentication. 941 This will break interoperability with all stacks (including all 942 actual FreeBSD versions) who implement 943 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 944 authentication). 945 The only workaround with such peers is to use another HMAC 946 algorithm for IPsec ("phase 2") authentication. 947 94820110207: 949 Remove the uio_yield prototype and symbol. This function has 950 been misnamed since it was introduced and should not be 951 globally exposed with this name. The equivalent functionality 952 is now available using kern_yield(curthread->td_user_pri). 953 The function remains undocumented. 954 95520110112: 956 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 957 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 958 for scalar sysctls is defined but disabled. Code that needs 959 UQUAD to pass the type checking that must compile on older 960 systems where the define is not present can check against 961 __FreeBSD_version >= 900030. 962 963 The system dialog(1) has been replaced with a new version previously 964 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 965 with the previous version, but the libdialog associated with it has 966 a largely incompatible API. As such, the original version of libdialog 967 will be kept temporarily as libodialog, until its base system consumers 968 are replaced or updated. Bump __FreeBSD_version to 900030. 969 97020110103: 971 If you are trying to run make universe on a -stable system, and you get 972 the following warning: 973 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 974 unknown. config(8) likely too old." 975 or something similar to it, then you must upgrade your -stable system 976 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 977 stable/8) or build the config from the latest stable/8 branch and 978 install it on your system. 979 980 Prior to this date, building a current universe on 8-stable system from 981 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 982 error in the first kernel build phase. A new config on those old 983 systems will fix that problem for older versions of -current. 984 98520101228: 986 The TCP stack has been modified to allow Khelp modules to interact with 987 it via helper hook points and store per-connection data in the TCP 988 control block. Bump __FreeBSD_version to 900029. User space tools that 989 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 990 be recompiled. 991 99220101114: 993 Generic IEEE 802.3 annex 31B full duplex flow control support has been 994 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 995 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 996 to take advantage of it instead of using custom implementations. This 997 means that these drivers now no longer unconditionally advertise 998 support for flow control but only do so if flow control is a selected 999 media option. This was implemented in the generic support that way in 1000 order to allow flow control to be switched on and off via ifconfig(8) 1001 with the PHY specific default to typically off in order to protect 1002 from unwanted effects. Consequently, if you used flow control with 1003 one of the above mentioned drivers you now need to explicitly enable 1004 it, for example via: 1005 ifconfig bge0 media auto mediaopt flowcontrol 1006 1007 Along with the above mentioned changes generic support for setting 1008 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1009 e1000phy(4) as well as ip1000phy(4) have been converted to take 1010 advantage of it. This means that these drivers now no longer take the 1011 link0 parameter for selecting master mode but the master media option 1012 has to be used instead, for example like in the following: 1013 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1014 1015 Selection of master mode now is also available with all other PHY 1016 drivers supporting 1000baseT. 1017 101820101111: 1019 The TCP stack has received a significant update to add support for 1020 modularised congestion control and generally improve the clarity of 1021 congestion control decisions. Bump __FreeBSD_version to 900025. User 1022 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1023 sockstat) need to be recompiled. 1024 102520101002: 1026 The man(1) utility has been replaced by a new version that no longer 1027 uses /etc/manpath.config. Please consult man.conf(5) for how to 1028 migrate local entries to the new format. 1029 103020100928: 1031 The copyright strings printed by login(1) and sshd(8) at the time of a 1032 new connection have been removed to follow other operating systems and 1033 upstream sshd. 1034 103520100915: 1036 A workaround for a fixed ld bug has been removed in kernel code, 1037 so make sure that your system ld is built from sources after 1038 revision 210245 from 2010-07-19 (r211583 if building head kernel 1039 on stable/8, r211584 for stable/7; both from 2010-08-21). 1040 A symptom of incorrect ld version is different addresses for 1041 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1042 104320100913: 1044 The $ipv6_prefer variable in rc.conf(5) has been split into 1045 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1046 1047 The $ip6addrctl_policy is a variable to choose a pre-defined 1048 address selection policy set by ip6addrctl(8). A value 1049 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1050 default is "AUTO". 1051 1052 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1053 flag (see an entry of 20090926) is set on an interface with no 1054 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1055 security reason. If you want IPv6 link-local address on all 1056 interfaces by default, set this to "YES". 1057 1058 The old ipv6_prefer="YES" is equivalent to 1059 ipv6_activate_all_interfaces="YES" and 1060 ip6addrctl_policy="ipv6_prefer". 1061 106220100913: 1063 DTrace has grown support for userland tracing. Due to this, DTrace is 1064 now i386 and amd64 only. 1065 dtruss(1) is now installed by default on those systems and a new 1066 kernel module is needed for userland tracing: fasttrap. 1067 No changes to your kernel config file are necessary to enable 1068 userland tracing, but you might consider adding 'STRIP=' and 1069 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1070 to have informative userland stack traces in DTrace (ustack). 1071 107220100725: 1073 The acpi_aiboost(4) driver has been removed in favor of the new 1074 aibs(4) driver. You should update your kernel configuration file. 1075 107620100722: 1077 BSD grep has been imported to the base system and it is built by 1078 default. It is completely BSD licensed, highly GNU-compatible, uses 1079 less memory than its GNU counterpart and has a small codebase. 1080 However, it is slower than its GNU counterpart, which is mostly 1081 noticeable for larger searches, for smaller ones it is measurable 1082 but not significant. The reason is complex, the most important factor 1083 is that we lack a modern and efficient regex library and GNU 1084 overcomes this by optimizing the searches internally. Future work 1085 on improving the regex performance is planned, for the meantime, 1086 users that need better performance, can build GNU grep instead by 1087 setting the WITH_GNU_GREP knob. 1088 108920100713: 1090 Due to the import of powerpc64 support, all existing powerpc kernel 1091 configuration files must be updated with a machine directive like this: 1092 machine powerpc powerpc 1093 1094 In addition, an updated config(8) is required to build powerpc kernels 1095 after this change. 1096 109720100713: 1098 A new version of ZFS (version 15) has been merged to -HEAD. 1099 This version uses a python library for the following subcommands: 1100 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1101 For full functionality of these commands the following port must 1102 be installed: sysutils/py-zfs 1103 110420100429: 1105 'vm_page's are now hashed by physical address to an array of mutexes. 1106 Currently this is only used to serialize access to hold_count. Over 1107 time the page queue mutex will be peeled away. This changes the size 1108 of pmap on every architecture. And requires all callers of vm_page_hold 1109 and vm_page_unhold to be updated. 1110 111120100402: 1112 WITH_CTF can now be specified in src.conf (not recommended, there 1113 are some problems with static executables), make.conf (would also 1114 affect ports which do not use GNU make and do not override the 1115 compile targets) or in the kernel config (via "makeoptions 1116 WITH_CTF=yes"). 1117 When WITH_CTF was specified there before this was silently ignored, 1118 so make sure that WITH_CTF is not used in places which could lead 1119 to unwanted behavior. 1120 112120100311: 1122 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1123 to allow 32-bit compatibility on non-x86 platforms. All kernel 1124 configurations on amd64 and ia64 platforms using these options must 1125 be modified accordingly. 1126 112720100113: 1128 The utmp user accounting database has been replaced with utmpx, 1129 the user accounting interface standardized by POSIX. 1130 Unfortunately the semantics of utmp and utmpx don't match, 1131 making it practically impossible to support both interfaces. 1132 The user accounting database is used by tools like finger(1), 1133 last(1), talk(1), w(1) and ac(8). 1134 1135 All applications in the base system use utmpx. This means only 1136 local binaries (e.g. from the ports tree) may still use these 1137 utmp database files. These applications must be rebuilt to make 1138 use of utmpx. 1139 1140 After the system has been upgraded, it is safe to remove the old 1141 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1142 assuming their contents is of no importance anymore. Old wtmp 1143 databases can only be used by last(1) and ac(8) after they have 1144 been converted to the new format using wtmpcvt(1). 1145 114620100108: 1147 Introduce the kernel thread "deadlock resolver" (which can be enabled 1148 via the DEADLKRES option, see NOTES for more details) and the 1149 sleepq_type() function for sleepqueues. 1150 115120091202: 1152 The rc.firewall and rc.firewall6 were unified, and 1153 rc.firewall6 and rc.d/ip6fw were removed. 1154 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1155 variables are obsoleted. Instead, the following new rc 1156 variables are added to rc.d/ipfw: 1157 1158 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1159 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1160 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1161 1162 The meanings correspond to the relevant IPv4 variables. 1163 116420091125: 1165 8.0-RELEASE. 1166 116720091113: 1168 The default terminal emulation for syscons(4) has been changed 1169 from cons25 to xterm on all platforms except pc98. This means 1170 that the /etc/ttys file needs to be updated to ensure correct 1171 operation of applications on the console. 1172 1173 The terminal emulation style can be toggled per window by using 1174 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1175 options can be used to change the compile-time default back to 1176 cons25. 1177 1178 To prevent graphical artifacts, make sure the TERM environment 1179 variable is set to match the terminal emulation that is being 1180 performed by syscons(4). 1181 118220091109: 1183 The layout of the structure ieee80211req_scan_result has changed. 1184 Applications that require wireless scan results (e.g. ifconfig(8)) 1185 from net80211 need to be recompiled. 1186 1187 Applications such as wpa_supplicant(8) may require a full world 1188 build without using NO_CLEAN in order to get synchronized with the 1189 new structure. 1190 119120091025: 1192 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1193 There's one kernel module for each firmware. Adding "device iwnfw" 1194 to the kernel configuration file means including all three firmware 1195 images inside the kernel. If you want to include just the one for 1196 your wireless card, use the devices iwn4965fw, iwn5000fw or 1197 iwn5150fw. 1198 119920090926: 1200 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1201 into rc.d/netif. The changes are the following: 1202 1203 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1204 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1205 Note that both variables need the "inet6" keyword at the head. 1206 1207 Do not set $ipv6_network_interfaces manually if you do not 1208 understand what you are doing. It is not needed in most cases. 1209 1210 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1211 they are obsolete. 1212 1213 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1214 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1215 1216 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1217 all configured interfaces have "inet6 accept_rtadv" in the 1218 $ifconfig_IF_ipv6. These are for backward compatibility. 1219 1220 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1221 functionality of interfaces with no corresponding 1222 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1223 and the default address selection policy of ip6addrctl(8) 1224 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1225 Note that if you want to configure IPv6 functionality on the 1226 disabled interfaces after boot, first you need to clear the flag by 1227 using ifconfig(8) like: 1228 1229 ifconfig em0 inet6 -ifdisabled 1230 1231 If YES, the default address selection policy is set as 1232 IPv6-preferred. 1233 1234 The default value of $ipv6_prefer is NO. 1235 1236 4. If your system need to receive Router Advertisement messages, 1237 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1238 scripts automatically invoke rtsol(8) when the interface becomes 1239 UP. The Router Advertisement messages are used for SLAAC 1240 (State-Less Address AutoConfiguration). 1241 124220090922: 1243 802.11s D3.03 support was committed. This is incompatible with the 1244 previous code, which was based on D3.0. 1245 124620090912: 1247 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1248 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1249 control whether accepting Router Advertisement messages or not. 1250 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1251 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1252 The ifconfig(8) utility now supports these flags. 1253 125420090910: 1255 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1256 mount(8) and -a option for df(1) to see them. 1257 125820090825: 1259 The old tunable hw.bus.devctl_disable has been superseded by 1260 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1261 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1262 is 1000. 1263 126420090813: 1265 Remove the option STOP_NMI. The default action is now to use NMI only 1266 for KDB via the newly introduced function stop_cpus_hard() and 1267 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1268 126920090803: 1270 The stable/8 branch created in subversion. This corresponds to the 1271 RELENG_8 branch in CVS. 1272 127320090719: 1274 Bump the shared library version numbers for all libraries that do not 1275 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1276 __FreeBSD_version to 800105. 1277 127820090714: 1279 Due to changes in the implementation of virtual network stack support, 1280 all network-related kernel modules must be recompiled. As this change 1281 breaks the ABI, bump __FreeBSD_version to 800104. 1282 128320090713: 1284 The TOE interface to the TCP syncache has been modified to remove 1285 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1286 The cxgb driver is the only TOE consumer affected by this change, and 1287 needs to be recompiled along with the kernel. As this change breaks 1288 the ABI, bump __FreeBSD_version to 800103. 1289 129020090712: 1291 Padding has been added to struct tcpcb, sackhint and tcpstat in 1292 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1293 maintaining the ABI. However, this change breaks the ABI, so bump 1294 __FreeBSD_version to 800102. User space tools that rely on the size of 1295 any of these structs (e.g. sockstat) need to be recompiled. 1296 129720090630: 1298 The NFS_LEGACYRPC option has been removed along with the old kernel 1299 RPC implementation that this option selected. Kernel configurations 1300 may need to be adjusted. 1301 130220090629: 1303 The network interface device nodes at /dev/net/<interface> have been 1304 removed. All ioctl operations can be performed the normal way using 1305 routing sockets. The kqueue functionality can generally be replaced 1306 with routing sockets. 1307 130820090628: 1309 The documentation from the FreeBSD Documentation Project (Handbook, 1310 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1311 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1312 131320090624: 1314 The ABI of various structures related to the SYSV IPC API have been 1315 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1316 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1317 800100. 1318 131920090622: 1320 Layout of struct vnet has changed as routing related variables were 1321 moved to their own Vimage module. Modules need to be recompiled. Bump 1322 __FreeBSD_version to 800099. 1323 132420090619: 1325 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1326 respectively. As long as no more than 16 groups per process are used, 1327 no changes should be visible. When more than 16 groups are used, old 1328 binaries may fail if they call getgroups() or getgrouplist() with 1329 statically sized storage. Recompiling will work around this, but 1330 applications should be modified to use dynamically allocated storage 1331 for group arrays as POSIX.1-2008 does not cap an implementation's 1332 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1333 1334 NFS and portalfs mounts may also be affected as the list of groups is 1335 truncated to 16. Users of NFS who use more than 16 groups, should 1336 take care that negative group permissions are not used on the exported 1337 file systems as they will not be reliable unless a GSSAPI based 1338 authentication method is used. 1339 134020090616: 1341 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1342 option compiles in the support for adaptive spinning for lockmgrs 1343 which want to enable it. The lockinit() function now accepts the flag 1344 LK_ADAPTIVE in order to make the lock object subject to adaptive 1345 spinning when both held in write and read mode. 1346 134720090613: 1348 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1349 changed. User applications that use this ioctl need to be rebuilt. 1350 135120090611: 1352 The layout of struct thread has changed. Kernel and modules need to 1353 be rebuilt. 1354 135520090608: 1356 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1357 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1358 135920090602: 1360 window(1) has been removed from the base system. It can now be 1361 installed from ports. The port is called misc/window. 1362 136320090601: 1364 The way we are storing and accessing `routing table' entries has 1365 changed. Programs reading the FIB, like netstat, need to be 1366 re-compiled. 1367 136820090601: 1369 A new netisr implementation has been added for FreeBSD 8. Network 1370 file system modules, such as igmp, ipdivert, and others, should be 1371 rebuilt. 1372 Bump __FreeBSD_version to 800096. 1373 137420090530: 1375 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1376 more valid. 1377 137820090530: 1379 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1380 Bump __FreeBSD_version to 800094. 1381 138220090529: 1383 Add mnt_xflag field to 'struct mount'. File system modules need to be 1384 rebuilt. 1385 Bump __FreeBSD_version to 800093. 1386 138720090528: 1388 The compiling option ADAPTIVE_SX has been retired while it has been 1389 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1390 The KPI for sx_init_flags() changes as accepting flags: 1391 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1392 been introduced in order to handle the reversed logic. 1393 Bump __FreeBSD_version to 800092. 1394 139520090527: 1396 Add support for hierarchical jails. Remove global securelevel. 1397 Bump __FreeBSD_version to 800091. 1398 139920090523: 1400 The layout of struct vnet_net has changed, therefore modules 1401 need to be rebuilt. 1402 Bump __FreeBSD_version to 800090. 1403 140420090523: 1405 The newly imported zic(8) produces a new format in the output. Please 1406 run tzsetup(8) to install the newly created data to /etc/localtime. 1407 140820090520: 1409 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1410 hw.usb.* and is now consistent again with previous releases. 1411 141220090520: 1413 802.11 monitor mode support was revised and driver api's were changed. 1414 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1415 of DLT_IEEE802_11. No user-visible data structures were changed but 1416 applications that use DLT_IEEE802_11 may require changes. 1417 Bump __FreeBSD_version to 800088. 1418 141920090430: 1420 The layout of the following structs has changed: sysctl_oid, 1421 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1422 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1423 panics may be experienced. World rebuild is required for 1424 correctly checking networking state from userland. 1425 Bump __FreeBSD_version to 800085. 1426 142720090429: 1428 MLDv2 and Source-Specific Multicast (SSM) have been merged 1429 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1430 The implementation of SSM within FreeBSD's IPv6 stack closely 1431 follows the IPv4 implementation. 1432 1433 For kernel developers: 1434 1435 * The most important changes are that the ip6_output() and 1436 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1437 and this lock has been downgraded to a non-recursive mutex. 1438 1439 * As with the changes to the IPv4 stack to support SSM, filtering 1440 of inbound multicast traffic must now be performed by transport 1441 protocols within the IPv6 stack. This does not apply to TCP and 1442 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1443 1444 * The KPIs used by IPv6 multicast are similar to those used by 1445 the IPv4 stack, with the following differences: 1446 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1447 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1448 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1449 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1450 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1451 for MLDv1 have an additional 'timer' argument which is used to 1452 jitter the initial membership report for the solicited-node 1453 multicast membership on-link. 1454 * This is not strictly needed for MLDv2, which already jitters 1455 its report transmissions. However, the 'timer' argument is 1456 preserved in case MLDv1 is active on the interface. 1457 1458 * The KAME linked-list based IPv6 membership implementation has 1459 been refactored to use a vector similar to that used by the IPv4 1460 stack. 1461 Code which maintains a list of its own multicast memberships 1462 internally, e.g. carp, has been updated to reflect the new 1463 semantics. 1464 1465 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1466 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1467 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1468 implementation constraint which needs to be addressed in HEAD. 1469 1470 For application developers: 1471 1472 * The changes are broadly similar to those made for the IPv4 1473 stack. 1474 1475 * The use of IPv4 and IPv6 multicast socket options on the same 1476 socket, using mapped addresses, HAS NOT been tested or supported. 1477 1478 * There are a number of issues with the implementation of various 1479 IPv6 multicast APIs which need to be resolved in the API surface 1480 before the implementation is fully compatible with KAME userland 1481 use, and these are mostly to do with interface index treatment. 1482 1483 * The literature available discusses the use of either the delta / ASM 1484 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1485 using setsourcefilter(3)/getsourcefilter(3). For more information 1486 please refer to RFC 3768, 'Socket Interface Extensions for 1487 Multicast Source Filters'. 1488 1489 * Applications which use the published RFC 3678 APIs should be fine. 1490 1491 For systems administrators: 1492 1493 * The mtest(8) utility has been refactored to support IPv6, in 1494 addition to IPv4. Interface addresses are no longer accepted 1495 as arguments, their names must be used instead. The utility 1496 will map the interface name to its first IPv4 address as 1497 returned by getifaddrs(3). 1498 1499 * The ifmcstat(8) utility has also been updated to print the MLDv2 1500 endpoint state and source filter lists via sysctl(3). 1501 1502 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1503 loopback of IPv6 multicast datagrams by default; it defaults to 1 1504 to preserve the existing behaviour. Disabling multicast loopback is 1505 recommended for optimal system performance. 1506 1507 * The IPv6 MROUTING code has been changed to examine this sysctl 1508 instead of attempting to perform a group lookup before looping 1509 back forwarded datagrams. 1510 1511 Bump __FreeBSD_version to 800084. 1512 151320090422: 1514 Implement low-level Bluetooth HCI API. 1515 Bump __FreeBSD_version to 800083. 1516 151720090419: 1518 The layout of struct malloc_type, used by modules to register new 1519 memory allocation types, has changed. Most modules will need to 1520 be rebuilt or panics may be experienced. 1521 Bump __FreeBSD_version to 800081. 1522 152320090415: 1524 Anticipate overflowing inp_flags - add inp_flags2. 1525 This changes most offsets in inpcb, so checking v4 connection 1526 state will require a world rebuild. 1527 Bump __FreeBSD_version to 800080. 1528 152920090415: 1530 Add an llentry to struct route and struct route_in6. Modules 1531 embedding a struct route will need to be recompiled. 1532 Bump __FreeBSD_version to 800079. 1533 153420090414: 1535 The size of rt_metrics_lite and by extension rtentry has changed. 1536 Networking administration apps will need to be recompiled. 1537 The route command now supports show as an alias for get, weighting 1538 of routes, sticky and nostick flags to alter the behavior of stateful 1539 load balancing. 1540 Bump __FreeBSD_version to 800078. 1541 154220090408: 1543 Do not use Giant for kbdmux(4) locking. This is wrong and 1544 apparently causing more problems than it solves. This will 1545 re-open the issue where interrupt handlers may race with 1546 kbdmux(4) in polling mode. Typical symptoms include (but 1547 not limited to) duplicated and/or missing characters when 1548 low level console functions (such as gets) are used while 1549 interrupts are enabled (for example geli password prompt, 1550 mountroot prompt etc.). Disabling kbdmux(4) may help. 1551 155220090407: 1553 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1554 kernel modules referencing any of the above need to be recompiled. 1555 Bump __FreeBSD_version to 800075. 1556 155720090320: 1558 GEOM_PART has become the default partition slicer for storage devices, 1559 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1560 introduces some changes: 1561 1562 MSDOS/EBR: the devices created from MSDOS extended partition entries 1563 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1564 to devices with offset-based names. fstabs may need to be modified. 1565 1566 BSD: the "geometry does not match label" warning is harmless in most 1567 cases but it points to problems in file system misalignment with 1568 disk geometry. The "c" partition is now implicit, covers the whole 1569 top-level drive and cannot be (mis)used by users. 1570 1571 General: Kernel dumps are now not allowed to be written to devices 1572 whose partition types indicate they are meant to be used for file 1573 systems (or, in case of MSDOS partitions, as something else than 1574 the "386BSD" type). 1575 1576 Most of these changes date approximately from 200812. 1577 157820090319: 1579 The uscanner(4) driver has been removed from the kernel. This follows 1580 Linux removing theirs in 2.6 and making libusb the default interface 1581 (supported by sane). 1582 158320090319: 1584 The multicast forwarding code has been cleaned up. netstat(1) 1585 only relies on KVM now for printing bandwidth upcall meters. 1586 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1587 ip6_mroute_mod respectively. The config(5) options for statically 1588 compiling this code remain the same, i.e. 'options MROUTING'. 1589 159020090315: 1591 Support for the IFF_NEEDSGIANT network interface flag has been 1592 removed, which means that non-MPSAFE network device drivers are no 1593 longer supported. In particular, if_ar, if_sr, and network device 1594 drivers from the old (legacy) USB stack can no longer be built or 1595 used. 1596 159720090313: 1598 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1599 a bunch of new language catalog files have also been added. 1600 This means that some common libc messages are now localized and 1601 they depend on the LC_MESSAGES environmental variable. 1602 160320090313: 1604 The k8temp(4) driver has been renamed to amdtemp(4) since 1605 support for Family 10 and Family 11 CPU families was added. 1606 160720090309: 1608 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1609 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1610 1611 For kernel developers, the most important changes are that the 1612 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1613 and this lock has been downgraded to a non-recursive mutex. 1614 1615 Transport protocols (UDP, Raw IP) are now responsible for filtering 1616 inbound multicast traffic according to group membership and source 1617 filters. The imo_multicast_filter() KPI exists for this purpose. 1618 Transports which do not use multicast (SCTP, TCP) already reject 1619 multicast by default. Forwarding and receive performance may improve 1620 as a mutex acquisition is no longer needed in the ip_input() 1621 low-level input path. in_addmulti() and in_delmulti() are shimmed 1622 to new KPIs which exist to support SSM in-kernel. 1623 1624 For application developers, it is recommended that loopback of 1625 multicast datagrams be disabled for best performance, as this 1626 will still cause the lock to be taken for each looped-back 1627 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1628 be tuned to 0 to disable loopback by default; it defaults to 1 1629 to preserve the existing behaviour. 1630 1631 For systems administrators, to obtain best performance with 1632 multicast reception and multiple groups, it is always recommended 1633 that a card with a suitably precise hash filter is used. Hash 1634 collisions will still result in the lock being taken within the 1635 transport protocol input path to check group membership. 1636 1637 If deploying FreeBSD in an environment with IGMP snooping switches, 1638 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1639 enabled; this forces 224.0.0.0/24 group membership to be announced 1640 via IGMP. 1641 1642 The size of 'struct igmpstat' has changed; netstat needs to be 1643 recompiled to reflect this. 1644 Bump __FreeBSD_version to 800070. 1645 164620090309: 1647 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1648 updated to use it. This requires a buildworld/installworld in order to 1649 update the library and dependencies (usbconfig, etc). Its advisable to 1650 rebuild all ports which uses libusb. More specific directions are given 1651 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1652 libusb are no longer required and can be removed. 1653 165420090302: 1655 A workaround is committed to allow the creation of System V shared 1656 memory segment of size > 2 GB on the 64-bit architectures. 1657 Due to a limitation of the existing ABI, the shm_segsz member 1658 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1659 wrong for large segments. Note that limits must be explicitly 1660 raised to allow such segments to be created. 1661 166220090301: 1663 The layout of struct ifnet has changed, requiring a rebuild of all 1664 network device driver modules. 1665 166620090227: 1667 The /dev handling for the new USB stack has changed, a 1668 buildworld/installworld is required for libusb20. 1669 167020090223: 1671 The new USB2 stack has now been permanently moved in and all kernel and 1672 module names reverted to their previous values (eg, usb, ehci, ohci, 1673 ums, ...). The old usb stack can be compiled in by prefixing the name 1674 with the letter 'o', the old usb modules have been removed. 1675 Updating entry 20090216 for xorg and 20090215 for libmap may still 1676 apply. 1677 167820090217: 1679 The rc.conf(5) option if_up_delay has been renamed to 1680 defaultroute_delay to better reflect its purpose. If you have 1681 customized this setting in /etc/rc.conf you need to update it to 1682 use the new name. 1683 168420090216: 1685 xorg 7.4 wants to configure its input devices via hald which does not 1686 yet work with USB2. If the keyboard/mouse does not work in xorg then 1687 add 1688 Option "AllowEmptyInput" "off" 1689 to your ServerLayout section. This will cause X to use the configured 1690 kbd and mouse sections from your xorg.conf. 1691 169220090215: 1693 The GENERIC kernels for all architectures now default to the new USB2 1694 stack. No kernel config options or code have been removed so if a 1695 problem arises please report it and optionally revert to the old USB 1696 stack. If you are loading USB kernel modules or have a custom kernel 1697 that includes GENERIC then ensure that usb names are also changed over, 1698 eg uftdi -> usb2_serial_ftdi. 1699 1700 Older programs linked against the ports libusb 0.1 need to be 1701 redirected to the new stack's libusb20. /etc/libmap.conf can 1702 be used for this: 1703 # Map old usb library to new one for usb2 stack 1704 libusb-0.1.so.8 libusb20.so.1 1705 170620090209: 1707 All USB ethernet devices now attach as interfaces under the name ueN 1708 (eg. ue0). This is to provide a predictable name as vendors often 1709 change usb chipsets in a product without notice. 1710 171120090203: 1712 The ichsmb(4) driver has been changed to require SMBus slave 1713 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1714 All of the other SMBus controller drivers require left-justified 1715 slave addresses, so this change makes all the drivers provide the 1716 same interface. 1717 171820090201: 1719 INET6 statistics (struct ip6stat) was updated. 1720 netstat(1) needs to be recompiled. 1721 172220090119: 1723 NTFS has been removed from GENERIC kernel on amd64 to match 1724 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1725 will load ntfs.ko module automatically when NTFS support is 1726 actually needed, unless ntfs.ko is not installed or security 1727 level prohibits loading kernel modules. If either is the case, 1728 "options NTFS" has to be added into kernel config. 1729 173020090115: 1731 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1732 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1733 800061. User space tools that rely on the size of struct tcpcb in 1734 tcp_var.h (e.g. sockstat) need to be recompiled. 1735 173620081225: 1737 ng_tty(4) module updated to match the new TTY subsystem. 1738 Due to API change, user-level applications must be updated. 1739 New API support added to mpd5 CVS and expected to be present 1740 in next mpd5.3 release. 1741 174220081219: 1743 With __FreeBSD_version 800060 the makefs tool is part of 1744 the base system (it was a port). 1745 174620081216: 1747 The afdata and ifnet locks have been changed from mutexes to 1748 rwlocks, network modules will need to be re-compiled. 1749 175020081214: 1751 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1752 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1753 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1754 architecture and 40 bytes on 64-bit architecture. The userland 1755 applications "arp" and "ndp" have been updated accordingly. 1756 The output from "netstat -r" shows only routing entries and 1757 none of the L2 information. 1758 175920081130: 1760 __FreeBSD_version 800057 marks the switchover from the 1761 binary ath hal to source code. Users must add the line: 1762 1763 options AH_SUPPORT_AR5416 1764 1765 to their kernel config files when specifying: 1766 1767 device ath_hal 1768 1769 The ath_hal module no longer exists; the code is now compiled 1770 together with the driver in the ath module. It is now 1771 possible to tailor chip support (i.e. reduce the set of chips 1772 and thereby the code size); consult ath_hal(4) for details. 1773 177420081121: 1775 __FreeBSD_version 800054 adds memory barriers to 1776 <machine/atomic.h>, new interfaces to ifnet to facilitate 1777 multiple hardware transmit queues for cards that support 1778 them, and a lock-less ring-buffer implementation to 1779 enable drivers to more efficiently manage queueing of 1780 packets. 1781 178220081117: 1783 A new version of ZFS (version 13) has been merged to -HEAD. 1784 This version has zpool attribute "listsnapshots" off by 1785 default, which means "zfs list" does not show snapshots, 1786 and is the same as Solaris behavior. 1787 178820081028: 1789 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1790 179120081009: 1792 The uhci, ohci, ehci and slhci USB Host controller drivers have 1793 been put into separate modules. If you load the usb module 1794 separately through loader.conf you will need to load the 1795 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1796 controller add the following to loader.conf: 1797 1798 uhci_load="YES" 1799 ehci_load="YES" 1800 180120081009: 1802 The ABI used by the PMC toolset has changed. Please keep 1803 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1804 sync. 1805 180620081009: 1807 atapci kernel module now includes only generic PCI ATA 1808 driver. AHCI driver moved to ataahci kernel module. 1809 All vendor-specific code moved into separate kernel modules: 1810 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1811 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1812 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1813 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1814 181520080820: 1816 The TTY subsystem of the kernel has been replaced by a new 1817 implementation, which provides better scalability and an 1818 improved driver model. Most common drivers have been migrated to 1819 the new TTY subsystem, while others have not. The following 1820 drivers have not yet been ported to the new TTY layer: 1821 1822 PCI/ISA: 1823 cy, digi, rc, rp, sio 1824 1825 USB: 1826 ubser, ucycom 1827 1828 Line disciplines: 1829 ng_h4, ng_tty, ppp, sl, snp 1830 1831 Adding these drivers to your kernel configuration file shall 1832 cause compilation to fail. 1833 183420080818: 1835 ntpd has been upgraded to 4.2.4p5. 1836 183720080801: 1838 OpenSSH has been upgraded to 5.1p1. 1839 1840 For many years, FreeBSD's version of OpenSSH preferred DSA 1841 over RSA for host and user authentication keys. With this 1842 upgrade, we've switched to the vendor's default of RSA over 1843 DSA. This may cause upgraded clients to warn about unknown 1844 host keys even for previously known hosts. Users should 1845 follow the usual procedure for verifying host keys before 1846 accepting the RSA key. 1847 1848 This can be circumvented by setting the "HostKeyAlgorithms" 1849 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1850 command line. 1851 1852 Please note that the sequence of keys offered for 1853 authentication has been changed as well. You may want to 1854 specify IdentityFile in a different order to revert this 1855 behavior. 1856 185720080713: 1858 The sio(4) driver has been removed from the i386 and amd64 1859 kernel configuration files. This means uart(4) is now the 1860 default serial port driver on those platforms as well. 1861 1862 To prevent collisions with the sio(4) driver, the uart(4) driver 1863 uses different names for its device nodes. This means the 1864 onboard serial port will now most likely be called "ttyu0" 1865 instead of "ttyd0". You may need to reconfigure applications to 1866 use the new device names. 1867 1868 When using the serial port as a boot console, be sure to update 1869 /boot/device.hints and /etc/ttys before booting the new kernel. 1870 If you forget to do so, you can still manually specify the hints 1871 at the loader prompt: 1872 1873 set hint.uart.0.at="isa" 1874 set hint.uart.0.port="0x3F8" 1875 set hint.uart.0.flags="0x10" 1876 set hint.uart.0.irq="4" 1877 boot -s 1878 187920080609: 1880 The gpt(8) utility has been removed. Use gpart(8) to partition 1881 disks instead. 1882 188320080603: 1884 The version that Linuxulator emulates was changed from 2.4.2 1885 to 2.6.16. If you experience any problems with Linux binaries 1886 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1887 if it fixes the problem contact emulation mailing list. 1888 188920080525: 1890 ISDN4BSD (I4B) was removed from the src tree. You may need to 1891 update a your kernel configuration and remove relevant entries. 1892 189320080509: 1894 I have checked in code to support multiple routing tables. 1895 See the man pages setfib(1) and setfib(2). 1896 This is a hopefully backwards compatible version, 1897 but to make use of it you need to compile your kernel 1898 with options ROUTETABLES=2 (or more up to 16). 1899 190020080420: 1901 The 802.11 wireless support was redone to enable multi-bss 1902 operation on devices that are capable. The underlying device 1903 is no longer used directly but instead wlanX devices are 1904 cloned with ifconfig. This requires changes to rc.conf files. 1905 For example, change: 1906 ifconfig_ath0="WPA DHCP" 1907 to 1908 wlans_ath0=wlan0 1909 ifconfig_wlan0="WPA DHCP" 1910 see rc.conf(5) for more details. In addition, mergemaster of 1911 /etc/rc.d is highly recommended. Simultaneous update of userland 1912 and kernel wouldn't hurt either. 1913 1914 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1915 modules were merged into the base wlan module. All references 1916 to these modules (e.g. in kernel config files) must be removed. 1917 191820080408: 1919 psm(4) has gained write(2) support in native operation level. 1920 Arbitrary commands can be written to /dev/psm%d and status can 1921 be read back from it. Therefore, an application is responsible 1922 for status validation and error recovery. It is a no-op in 1923 other operation levels. 1924 192520080312: 1926 Support for KSE threading has been removed from the kernel. To 1927 run legacy applications linked against KSE libmap.conf may 1928 be used. The following libmap.conf may be used to ensure 1929 compatibility with any prior release: 1930 1931 libpthread.so.1 libthr.so.1 1932 libpthread.so.2 libthr.so.2 1933 libkse.so.3 libthr.so.3 1934 193520080301: 1936 The layout of struct vmspace has changed. This affects libkvm 1937 and any executables that link against libkvm and use the 1938 kvm_getprocs() function. In particular, but not exclusively, 1939 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1940 The effects are minimal, but it's advisable to upgrade world 1941 nonetheless. 1942 194320080229: 1944 The latest em driver no longer has support in it for the 1945 82575 adapter, this is now moved to the igb driver. The 1946 split was done to make new features that are incompatible 1947 with older hardware easier to do. 1948 194920080220: 1950 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1951 likewise the kernel option is now GEOM_LINUX_LVM. 1952 195320080211: 1954 The default NFS mount mode has changed from UDP to TCP for 1955 increased reliability. If you rely on (insecurely) NFS 1956 mounting across a firewall you may need to update your 1957 firewall rules. 1958 195920080208: 1960 Belatedly note the addition of m_collapse for compacting 1961 mbuf chains. 1962 196320080126: 1964 The fts(3) structures have been changed to use adequate 1965 integer types for their members and so to be able to cope 1966 with huge file trees. The old fts(3) ABI is preserved 1967 through symbol versioning in libc, so third-party binaries 1968 using fts(3) should still work, although they will not take 1969 advantage of the extended types. At the same time, some 1970 third-party software might fail to build after this change 1971 due to unportable assumptions made in its source code about 1972 fts(3) structure members. Such software should be fixed 1973 by its vendor or, in the worst case, in the ports tree. 1974 FreeBSD_version 800015 marks this change for the unlikely 1975 case that a portable fix is impossible. 1976 197720080123: 1978 To upgrade to -current after this date, you must be running 1979 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1980 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1981 198220071128: 1983 The ADAPTIVE_GIANT kernel option has been retired because its 1984 functionality is the default now. 1985 198620071118: 1987 The AT keyboard emulation of sunkbd(4) has been turned on 1988 by default. In order to make the special symbols of the Sun 1989 keyboards driven by sunkbd(4) work under X these now have 1990 to be configured the same way as Sun USB keyboards driven 1991 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1992 1993 Option "XkbLayout" "us" 1994 Option "XkbRules" "xorg" 1995 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1996 199720071024: 1998 It has been decided that it is desirable to provide ABI 1999 backwards compatibility to the FreeBSD 4/5/6 versions of the 2000 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2001 broken with the introduction of PCI domain support (see the 2002 20070930 entry). Unfortunately, this required the ABI of 2003 PCIOCGETCONF to be broken again in order to be able to 2004 provide backwards compatibility to the old version of that 2005 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2006 again. As for prominent ports this affects neither pciutils 2007 nor xorg-server this time, the hal port needs to be rebuilt 2008 however. 2009 201020071020: 2011 The misnamed kthread_create() and friends have been renamed 2012 to kproc_create() etc. Many of the callers already 2013 used kproc_start().. 2014 I will return kthread_create() and friends in a while 2015 with implementations that actually create threads, not procs. 2016 Renaming corresponds with version 800002. 2017 201820071010: 2019 RELENG_7 branched. 2020 2021COMMON ITEMS: 2022 2023 General Notes 2024 ------------- 2025 Avoid using make -j when upgrading. While generally safe, there are 2026 sometimes problems using -j to upgrade. If your upgrade fails with 2027 -j, please try again without -j. From time to time in the past there 2028 have been problems using -j with buildworld and/or installworld. This 2029 is especially true when upgrading between "distant" versions (eg one 2030 that cross a major release boundary or several minor releases, or when 2031 several months have passed on the -current branch). 2032 2033 Sometimes, obscure build problems are the result of environment 2034 poisoning. This can happen because the make utility reads its 2035 environment when searching for values for global variables. To run 2036 your build attempts in an "environmental clean room", prefix all make 2037 commands with 'env -i '. See the env(1) manual page for more details. 2038 2039 When upgrading from one major version to another it is generally best 2040 to upgrade to the latest code in the currently installed branch first, 2041 then do an upgrade to the new branch. This is the best-tested upgrade 2042 path, and has the highest probability of being successful. Please try 2043 this approach before reporting problems with a major version upgrade. 2044 2045 When upgrading a live system, having a root shell around before 2046 installing anything can help undo problems. Not having a root shell 2047 around can lead to problems if pam has changed too much from your 2048 starting point to allow continued authentication after the upgrade. 2049 2050 ZFS notes 2051 --------- 2052 When upgrading the boot ZFS pool to a new version, always follow 2053 these two steps: 2054 2055 1.) recompile and reinstall the ZFS boot loader and boot block 2056 (this is part of "make buildworld" and "make installworld") 2057 2058 2.) update the ZFS boot block on your boot drive 2059 2060 The following example updates the ZFS boot block on the first 2061 partition (freebsd-boot) of a GPT partitioned drive ad0: 2062 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2063 2064 Non-boot pools do not need these updates. 2065 2066 To build a kernel 2067 ----------------- 2068 If you are updating from a prior version of FreeBSD (even one just 2069 a few days old), you should follow this procedure. It is the most 2070 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2071 2072 make kernel-toolchain 2073 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2074 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2075 2076 To test a kernel once 2077 --------------------- 2078 If you just want to boot a kernel once (because you are not sure 2079 if it works, or if you want to boot a known bad kernel to provide 2080 debugging information) run 2081 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2082 nextboot -k testkernel 2083 2084 To just build a kernel when you know that it won't mess you up 2085 -------------------------------------------------------------- 2086 This assumes you are already running a CURRENT system. Replace 2087 ${arch} with the architecture of your machine (e.g. "i386", 2088 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2089 2090 cd src/sys/${arch}/conf 2091 config KERNEL_NAME_HERE 2092 cd ../compile/KERNEL_NAME_HERE 2093 make depend 2094 make 2095 make install 2096 2097 If this fails, go to the "To build a kernel" section. 2098 2099 To rebuild everything and install it on the current system. 2100 ----------------------------------------------------------- 2101 # Note: sometimes if you are running current you gotta do more than 2102 # is listed here if you are upgrading from a really old current. 2103 2104 <make sure you have good level 0 dumps> 2105 make buildworld 2106 make kernel KERNCONF=YOUR_KERNEL_HERE 2107 [1] 2108 <reboot in single user> [3] 2109 mergemaster -p [5] 2110 make installworld 2111 mergemaster -i [4] 2112 make delete-old [6] 2113 <reboot> 2114 2115 To cross-install current onto a separate partition 2116 -------------------------------------------------- 2117 # In this approach we use a separate partition to hold 2118 # current's root, 'usr', and 'var' directories. A partition 2119 # holding "/", "/usr" and "/var" should be about 2GB in 2120 # size. 2121 2122 <make sure you have good level 0 dumps> 2123 <boot into -stable> 2124 make buildworld 2125 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2126 <maybe newfs current's root partition> 2127 <mount current's root partition on directory ${CURRENT_ROOT}> 2128 make installworld DESTDIR=${CURRENT_ROOT} 2129 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2130 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2131 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2132 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2133 <reboot into current> 2134 <do a "native" rebuild/install as described in the previous section> 2135 <maybe install compatibility libraries from ports/misc/compat*> 2136 <reboot> 2137 2138 2139 To upgrade in-place from stable to current 2140 ---------------------------------------------- 2141 <make sure you have good level 0 dumps> 2142 make buildworld [9] 2143 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2144 [1] 2145 <reboot in single user> [3] 2146 mergemaster -p [5] 2147 make installworld 2148 mergemaster -i [4] 2149 make delete-old [6] 2150 <reboot> 2151 2152 Make sure that you've read the UPDATING file to understand the 2153 tweaks to various things you need. At this point in the life 2154 cycle of current, things change often and you are on your own 2155 to cope. The defaults can also change, so please read ALL of 2156 the UPDATING entries. 2157 2158 Also, if you are tracking -current, you must be subscribed to 2159 freebsd-current@freebsd.org. Make sure that before you update 2160 your sources that you have read and understood all the recent 2161 messages there. If in doubt, please track -stable which has 2162 much fewer pitfalls. 2163 2164 [1] If you have third party modules, such as vmware, you 2165 should disable them at this point so they don't crash your 2166 system on reboot. 2167 2168 [3] From the bootblocks, boot -s, and then do 2169 fsck -p 2170 mount -u / 2171 mount -a 2172 cd src 2173 adjkerntz -i # if CMOS is wall time 2174 Also, when doing a major release upgrade, it is required that 2175 you boot into single user mode to do the installworld. 2176 2177 [4] Note: This step is non-optional. Failure to do this step 2178 can result in a significant reduction in the functionality of the 2179 system. Attempting to do it by hand is not recommended and those 2180 that pursue this avenue should read this file carefully, as well 2181 as the archives of freebsd-current and freebsd-hackers mailing lists 2182 for potential gotchas. The -U option is also useful to consider. 2183 See mergemaster(8) for more information. 2184 2185 [5] Usually this step is a noop. However, from time to time 2186 you may need to do this if you get unknown user in the following 2187 step. It never hurts to do it all the time. You may need to 2188 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2189 install) after the buildworld before this step if you last updated 2190 from current before 20130425 or from -stable before 20130430. 2191 2192 [6] This only deletes old files and directories. Old libraries 2193 can be deleted by "make delete-old-libs", but you have to make 2194 sure that no program is using those libraries anymore. 2195 2196 [8] In order to have a kernel that can run the 4.x binaries needed to 2197 do an installworld, you must include the COMPAT_FREEBSD4 option in 2198 your kernel. Failure to do so may leave you with a system that is 2199 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2200 required to run the 5.x binaries on more recent kernels. And so on 2201 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2202 2203 Make sure that you merge any new devices from GENERIC since the 2204 last time you updated your kernel config file. 2205 2206 [9] When checking out sources, you must include the -P flag to have 2207 cvs prune empty directories. 2208 2209 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2210 "?=" instead of the "=" assignment operator, so that buildworld can 2211 override the CPUTYPE if it needs to. 2212 2213 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2214 not on the command line, or in /etc/make.conf. buildworld will 2215 warn if it is improperly defined. 2216FORMAT: 2217 2218This file contains a list, in reverse chronological order, of major 2219breakages in tracking -current. It is not guaranteed to be a complete 2220list of such breakages, and only contains entries since October 10, 2007. 2221If you need to see UPDATING entries from before that date, you will need 2222to fetch an UPDATING file from an older FreeBSD release. 2223 2224Copyright information: 2225 2226Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2227 2228Redistribution, publication, translation and use, with or without 2229modification, in full or in part, in any form or format of this 2230document are permitted without further permission from the author. 2231 2232THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2233IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2234WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2235DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2236INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2237(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2238SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2239HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2240STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2241IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2242POSSIBILITY OF SUCH DAMAGE. 2243 2244Contact Warner Losh if you have any questions about your use of 2245this document. 2246 2247$FreeBSD: releng/10.1/UPDATING 284985 2015-06-30 23:21:37Z delphij $ 2248