UPDATING revision 285780
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 1920150721: p15 FreeBSD-SA-15:13.tcp 20 21 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 22 [SA-15:13] 23 2420150630: p14 FreeBSD-EN-15:08.sendmail [revised] 25 FreeBSD-EN-15:09.xlocale 26 FreeBSD-EN-15:10.iconv 27 28 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 29 30 Fix inconsistency between locale and rune locale states. 31 [EN-15:09] 32 33 Improved iconv(3) UTF-7 support. [EN-15:10] 34 3520150618: p13 FreeBSD-EN-15:08.sendmail 36 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 37 3820150612: p12 FreeBSD-SA-15:10.openssl 39 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 40 4120150609: p11 FreeBSD-EN-15:06.file 42 FreeBSD-EN-15:07.zfs 43 44 Updated base system file(1) to 5.22 to address multiple denial 45 of service issues. [EN-15:06] 46 47 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 48 [EN-15:07] 49 5020150513: p10 FreeBSD-EN-15:04.freebsd-update 51 FreeBSD-EN-15:05.ufs 52 53 Fix bug with freebsd-update(8) that does not ensure the previous 54 upgrade was completed. [EN-15:04] 55 56 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 57 5820150407: p9 FreeBSD-SA-15:04.igmp [revised] 59 FreeBSD-SA-15:07.ntp 60 FreeBSD-SA-15:08.bsdinstall 61 FreeBSD-SA-15:09.ipv6 62 63 Improved patch for SA-15:04.igmp. 64 65 Fix multiple vulnerabilities of ntp. [SA-15:07] 66 67 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 68 69 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 70 7120150320: p8 72 Fix patch for SA-15:06.openssl. 73 7420150319: p7 FreeBSD-SA-15:06.openssl 75 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 76 7720150225: p6 FreeBSD-SA-15:04.igmp 78 FreeBSD-EN-15:01.vt 79 FreeBSD-EN-15:02.openssl 80 FreeBSD-EN-15:03.freebsd-update 81 82 Fix integer overflow in IGMP protocol. [SA-15:04] 83 84 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 85 86 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 87 88 Fix freebsd-update libraries update ordering issue. [EN-15:03] 89 9020150127: p5 FreeBSD-SA-15:02.kmem 91 FreeBSD-SA-15:03.sctp 92 93 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 94 vulnerability. [SA-15:02] 95 96 Fix SCTP stream reset vulnerability. [SA-15:03] 97 9820150114: p4 FreeBSD-SA-15:01.openssl 99 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 100 10120141223: p3 FreeBSD-SA-14:31.ntp 102 FreeBSD-EN-14:13.freebsd-update 103 104 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 105 Fix directory deletion issue in freebsd-update. [EN-14:13] 106 10720141217: p2 FreeBSD-SA-14:30.unbound 108 Fix unbound remote denial of service vulnerability. 109 11020141210: p1 FreeBSD-SA-14:27.stdio 111 FreeBSD-SA-14:28.file 112 113 Fix buffer overflow in stdio. [SA-14:27] 114 115 Fix multiple vulnerabilities in file(1) and libmagic(3). 116 [SA-14:28] 117 11820140904: 119 The ofwfb driver, used to provide a graphics console on PowerPC when 120 using vt(4), no longer allows mmap() of all of physical memory. This 121 will prevent Xorg on PowerPC with some ATI graphics cards from 122 initializing properly unless x11-servers/xorg-server is updated to 123 1.12.4_8 or newer. 124 12520140831: 126 The libatf-c and libatf-c++ major versions were downgraded to 0 and 127 1 respectively to match the upstream numbers. They were out of 128 sync because, when they were originally added to FreeBSD, the 129 upstream versions were not respected. These libraries are private 130 and not yet built by default, so renumbering them should be a 131 non-issue. However, unclean source trees will yield broken test 132 programs once the operator executes "make delete-old-libs" after a 133 "make installworld". 134 135 Additionally, the atf-sh binary was made private by moving it into 136 /usr/libexec/. Already-built shell test programs will keep the 137 path to the old binary so they will break after "make delete-old" 138 is run. 139 140 If you are using WITH_TESTS=yes (not the default), wipe the object 141 tree and rebuild from scratch to prevent spurious test failures. 142 This is only needed once: the misnumbered libraries and misplaced 143 binaries have been added to OptionalObsoleteFiles.inc so they will 144 be removed during a clean upgrade. 145 14620140814: 147 The ixgbe tunables now match their sysctl counterparts, for example: 148 hw.ixgbe.enable_aim => hw.ix.enable_aim 149 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 150 15120140801: 152 The NFSv4.1 server committed by r269398 changes the internal 153 function call interfaces used between the NFS and krpc modules. 154 As such, __FreeBSD_version was bumped. 155 15620140729: 157 The default unbound configuration has been modified to address 158 issues with reverse lookups on networks that use private 159 address ranges. If you use the local_unbound service, run 160 "service local_unbound setup" as root to regenerate your 161 configuration, then "service local_unbound reload" to load the 162 new configuration. 163 16420140717: 165 It is no longer necessary to include the dwarf version in your DEBUG 166 options in your kernel config file. The bug that required it to be 167 placed in the config file has bene fixed. DEBUG should now just 168 contain -g. The build system will automatically update things 169 to do the right thing. 170 17120140715: 172 Several ABI breaking changes were merged to CTL and new iSCSI code. 173 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 174 iscsictl need to be rebuilt to work with a new kernel. 175 17620140708: 177 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 178 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 179 which differs from the behaviour controlled by this knob.) 180 18120140608: 182 On i386 and amd64 systems, the onifconsole flag is now set by default 183 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 184 as a login TTY if it is set in the bootloader as an active kernel 185 console. No changes in behavior should result otherwise. To revert to 186 the previous behavior, set ttyu0 to "off" in /etc/ttys. 187 18820140512: 189 Clang and llvm have been upgraded to 3.4.1 release. 190 19120140321: 192 Clang and llvm have been upgraded to 3.4 release. 193 19420140306: 195 If a Makefile in a tests/ directory was auto-generating a Kyuafile 196 instead of providing an explicit one, this would prevent such 197 Makefile from providing its own Kyuafile in the future during 198 NO_CLEAN builds. This has been fixed in the Makefiles but manual 199 intervention is needed to clean an objdir if you use NO_CLEAN: 200 # find /usr/obj -name Kyuafile | xargs rm -f 201 20220140303: 203 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 204 capability mode support. Please note that enabling the feature in 205 kernel is still highly recommended. 206 20720140227: 208 OpenSSH is now built with sandbox support, and will use sandbox as 209 the default privilege separation method. This requires Capsicum 210 capability mode support in kernel. 211 21220140216: 213 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 214 been deprecated and will not be part of FreeBSD 11.0 and later 215 releases. If you use this driver, please consider switching to 216 the nfe(4) driver instead. 217 21820140120: 219 10.0-RELEASE. 220 22120131216: 222 The behavior of gss_pseudo_random() for the krb5 mechanism 223 has changed, for applications requesting a longer random string 224 than produced by the underlying enctype's pseudo-random() function. 225 In particular, the random string produced from a session key of 226 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 227 be different at the 17th octet and later, after this change. 228 The counter used in the PRF+ construction is now encoded as a 229 big-endian integer in accordance with RFC 4402. 230 __FreeBSD_version is bumped to 1000701. 231 23220131108: 233 The WITHOUT_ATF build knob has been removed and its functionality 234 has been subsumed into the more generic WITHOUT_TESTS. If you were 235 using the former to disable the build of the ATF libraries, you 236 should change your settings to use the latter. 237 23820131031: 239 The default version of mtree is nmtree which is obtained from 240 NetBSD. The output is generally the same, but may vary 241 slightly. If you found you need identical output adding 242 "-F freebsd9" to the command line should do the trick. For the 243 time being, the old mtree is available as fmtree. 244 24520131014: 246 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 247 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 248 1.1.4_8 and verify bsdyml not linked in, before running "make 249 delete-old-libs": 250 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 251 or 252 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 253 25420131010: 255 The rc.d/jail script has been updated to support jail(8) 256 configuration file. The "jail_<jname>_*" rc.conf(5) variables 257 for per-jail configuration are automatically converted to 258 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 259 This is transparently backward compatible. See below about some 260 incompatibilities and rc.conf(5) manual page for more details. 261 262 These variables are now deprecated in favor of jail(8) configuration 263 file. One can use "rc.d/jail config <jname>" command to generate 264 a jail(8) configuration file in /var/run/jail.<jname>.conf without 265 running the jail(8) utility. The default pathname of the 266 configuration file is /etc/jail.conf and can be specified by 267 using $jail_conf or $jail_<jname>_conf variables. 268 269 Please note that jail_devfs_ruleset accepts an integer at 270 this moment. Please consider to rewrite the ruleset name 271 with an integer. 272 27320130930: 274 BIND has been removed from the base system. If all you need 275 is a local resolver, simply enable and start the local_unbound 276 service instead. Otherwise, several versions of BIND are 277 available in the ports tree. The dns/bind99 port is one example. 278 279 With this change, nslookup(1) and dig(1) are no longer in the base 280 system. Users should instead use host(1) and drill(1) which are 281 in the base system. Alternatively, nslookup and dig can 282 be obtained by installing the dns/bind-tools port. 283 28420130916: 285 With the addition of unbound(8), a new unbound user is now 286 required during installworld. "mergemaster -p" can be used to 287 add the user prior to installworld, as documented in the handbook. 288 28920130911: 290 OpenSSH is now built with DNSSEC support, and will by default 291 silently trust signed SSHFP records. This can be controlled with 292 the VerifyHostKeyDNS client configuration setting. DNSSEC support 293 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 294 29520130906: 296 The GNU Compiler Collection and C++ standard library (libstdc++) 297 are no longer built by default on platforms where clang is the system 298 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 299 options in src.conf. 300 30120130905: 302 The PROCDESC kernel option is now part of the GENERIC kernel 303 configuration and is required for the rwhod(8) to work. 304 If you are using custom kernel configuration, you should include 305 'options PROCDESC'. 306 30720130905: 308 The API and ABI related to the Capsicum framework was modified 309 in backward incompatible way. The userland libraries and programs 310 have to be recompiled to work with the new kernel. This includes the 311 following libraries and programs, but the whole buildworld is 312 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 313 kdump, procstat, rwho, rwhod, uniq. 314 31520130903: 316 AES-NI intrinsic support has been added to gcc. The AES-NI module 317 has been updated to use this support. A new gcc is required to build 318 the aesni module on both i386 and amd64. 319 32020130821: 321 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 322 Thus "device padlock_rng" and "device rdrand_rng" should be 323 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 324 32520130813: 326 WITH_ICONV has been split into two feature sets. WITH_ICONV now 327 enables just the iconv* functionality and is now on by default. 328 WITH_LIBICONV_COMPAT enables the libiconv api and link time 329 compatability. Set WITHOUT_ICONV to build the old way. 330 If you have been using WITH_ICONV before, you will very likely 331 need to turn on WITH_LIBICONV_COMPAT. 332 33320130806: 334 INVARIANTS option now enables DEBUG for code with OpenSolaris and 335 Illumos origin, including ZFS. If you have INVARIANTS in your 336 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 337 explicitly. 338 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 339 locks if WITNESS option was set. Because that generated a lot of 340 witness(9) reports and all of them were believed to be false 341 positives, this is no longer done. New option OPENSOLARIS_WITNESS 342 can be used to achieve the previous behavior. 343 34420130806: 345 Timer values in IPv6 data structures now use time_uptime instead 346 of time_second. Although this is not a user-visible functional 347 change, userland utilities which directly use them---ndp(8), 348 rtadvd(8), and rtsold(8) in the base system---need to be updated 349 to r253970 or later. 350 35120130802: 352 find -delete can now delete the pathnames given as arguments, 353 instead of only files found below them or if the pathname did 354 not contain any slashes. Formerly, the following error message 355 would result: 356 357 find: -delete: <path>: relative path potentially not safe 358 359 Deleting the pathnames given as arguments can be prevented 360 without error messages using -mindepth 1 or by changing 361 directory and passing "." as argument to find. This works in the 362 old as well as the new version of find. 363 36420130726: 365 Behavior of devfs rules path matching has been changed. 366 Pattern is now always matched against fully qualified devfs 367 path and slash characters must be explicitly matched by 368 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 369 subdirectories must be reviewed. 370 37120130716: 372 The default ARM ABI has changed to the ARM EABI. The old ABI is 373 incompatible with the ARM EABI and all programs and modules will 374 need to be rebuilt to work with a new kernel. 375 376 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 377 378 NOTE: Support for the old ABI will be removed in the future and 379 users are advised to upgrade. 380 38120130709: 382 pkg_install has been disconnected from the build if you really need it 383 you should add WITH_PKGTOOLS in your src.conf(5). 384 38520130709: 386 Most of network statistics structures were changed to be able 387 keep 64-bits counters. Thus all tools, that work with networking 388 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 389 39020130629: 391 Fix targets that run multiple make's to use && rather than ; 392 so that subsequent steps depend on success of previous. 393 394 NOTE: if building 'universe' with -j* on stable/8 or stable/9 395 it would be better to start the build using bmake, to avoid 396 overloading the machine. 397 39820130618: 399 Fix a bug that allowed a tracing process (e.g. gdb) to write 400 to a memory-mapped file in the traced process's address space 401 even if neither the traced process nor the tracing process had 402 write access to that file. 403 40420130615: 405 CVS has been removed from the base system. An exact copy 406 of the code is available from the devel/cvs port. 407 40820130613: 409 Some people report the following error after the switch to bmake: 410 411 make: illegal option -- J 412 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 413 ... 414 *** [buildworld] Error code 2 415 416 this likely due to an old instance of make in 417 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 418 which src/Makefile will use that blindly, if it exists, so if 419 you see the above error: 420 421 rm -rf `make -V MAKEPATH` 422 423 should resolve it. 424 42520130516: 426 Use bmake by default. 427 Whereas before one could choose to build with bmake via 428 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 429 make. The goal is to remove these knobs for 10-RELEASE. 430 431 It is worth noting that bmake (like gmake) treats the command 432 line as the unit of failure, rather than statements within the 433 command line. Thus '(cd some/where && dosomething)' is safer 434 than 'cd some/where; dosomething'. The '()' allows consistent 435 behavior in parallel build. 436 43720130429: 438 Fix a bug that allows NFS clients to issue READDIR on files. 439 44020130426: 441 The WITHOUT_IDEA option has been removed because 442 the IDEA patent expired. 443 44420130426: 445 The sysctl which controls TRIM support under ZFS has been renamed 446 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 447 enabled by default. 448 44920130425: 450 The mergemaster command now uses the default MAKEOBJDIRPREFIX 451 rather than creating it's own in the temporary directory in 452 order allow access to bootstrapped versions of tools such as 453 install and mtree. When upgrading from version of FreeBSD where 454 the install command does not support -l, you will need to 455 install a new mergemaster command if mergemaster -p is required. 456 This can be accomplished with the command (cd src/usr.sbin/mergemaster 457 && make install). 458 45920130404: 460 Legacy ATA stack, disabled and replaced by new CAM-based one since 461 FreeBSD 9.0, completely removed from the sources. Kernel modules 462 atadisk and atapi*, user-level tools atacontrol and burncd are 463 removed. Kernel option `options ATA_CAM` is now permanently enabled 464 and removed. 465 46620130319: 467 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 468 and socketpair(2). Software, in particular Kerberos, may 469 automatically detect and use these during building. The resulting 470 binaries will not work on older kernels. 471 47220130308: 473 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 474 information, see the respective 20130304 entry). 475 47620130304: 477 Recent commits to callout(9) changed the size of struct callout, 478 so the KBI is probably heavily disturbed. Also, some functions 479 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 480 by macros. Every kernel module using it won't load, so rebuild 481 is requested. 482 483 The ctl device has been re-enabled in GENERIC for i386 and amd64, 484 but does not initialize by default (because of the new CTL_DISABLE 485 option) to save memory. To re-enable it, remove the CTL_DISABLE 486 option from the kernel config file or set kern.cam.ctl.disable=0 487 in /boot/loader.conf. 488 48920130301: 490 The ctl device has been disabled in GENERIC for i386 and amd64. 491 This was done due to the extra memory being allocated at system 492 initialisation time by the ctl driver which was only used if 493 a CAM target device was created. This makes a FreeBSD system 494 unusable on 128MB or less of RAM. 495 49620130208: 497 A new compression method (lz4) has been merged to -HEAD. Please 498 refer to zpool-features(7) for more information. 499 500 Please refer to the "ZFS notes" section of this file for information 501 on upgrading boot ZFS pools. 502 50320130129: 504 A BSD-licensed patch(1) variant has been added and is installed 505 as bsdpatch, being the GNU version the default patch. 506 To inverse the logic and use the BSD-licensed one as default, 507 while having the GNU version installed as gnupatch, rebuild 508 and install world with the WITH_BSD_PATCH knob set. 509 51020130121: 511 Due to the use of the new -l option to install(1) during build 512 and install, you must take care not to directly set the INSTALL 513 make variable in your /etc/make.conf, /etc/src.conf, or on the 514 command line. If you wish to use the -C flag for all installs 515 you may be able to add INSTALL+=-C to /etc/make.conf or 516 /etc/src.conf. 517 51820130118: 519 The install(1) option -M has changed meaning and now takes an 520 argument that is a file or path to append logs to. In the 521 unlikely event that -M was the last option on the command line 522 and the command line contained at least two files and a target 523 directory the first file will have logs appended to it. The -M 524 option served little practical purpose in the last decade so its 525 use is expected to be extremely rare. 526 52720121223: 528 After switching to Clang as the default compiler some users of ZFS 529 on i386 systems started to experience stack overflow kernel panics. 530 Please consider using 'options KSTACK_PAGES=4' in such configurations. 531 53220121222: 533 GEOM_LABEL now mangles label names read from file system metadata. 534 Mangling affect labels containing spaces, non-printable characters, 535 '%' or '"'. Device names in /etc/fstab and other places may need to 536 be updated. 537 53820121217: 539 By default, only the 10 most recent kernel dumps will be saved. To 540 restore the previous behaviour (no limit on the number of kernel dumps 541 stored in the dump directory) add the following line to /etc/rc.conf: 542 543 savecore_flags="" 544 54520121201: 546 With the addition of auditdistd(8), a new auditdistd user is now 547 required during installworld. "mergemaster -p" can be used to 548 add the user prior to installworld, as documented in the handbook. 549 55020121117: 551 The sin6_scope_id member variable in struct sockaddr_in6 is now 552 filled by the kernel before passing the structure to the userland via 553 sysctl or routing socket. This means the KAME-specific embedded scope 554 id in sin6_addr.s6_addr[2] is always cleared in userland application. 555 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 556 __FreeBSD_version is bumped to 1000025. 557 55820121105: 559 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 560 This means that the world and kernel will be compiled with clang 561 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 562 and /usr/bin/cpp. To disable this behavior and revert to building 563 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 564 of current may need to bootstrap WITHOUT_CLANG first if the clang 565 build fails (its compatibility window doesn't extend to the 9 stable 566 branch point). 567 56820121102: 569 The IPFIREWALL_FORWARD kernel option has been removed. Its 570 functionality now turned on by default. 571 57220121023: 573 The ZERO_COPY_SOCKET kernel option has been removed and 574 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 575 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 576 mechanism which is not safe and may result in kernel crashes. 577 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 578 driver supports disposeable external page sized mbuf storage. 579 Proper replacements for both zero-copy mechanisms are under 580 consideration and will eventually lead to complete removal 581 of the two kernel options. 582 58320121023: 584 The IPv4 network stack has been converted to network byte 585 order. The following modules need to be recompiled together 586 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 587 pf(4), ipfw(4), ng_ipfw(4), stf(4). 588 58920121022: 590 Support for non-MPSAFE filesystems was removed from VFS. The 591 VFS_VERSION was bumped, all filesystem modules shall be 592 recompiled. 593 59420121018: 595 All the non-MPSAFE filesystems have been disconnected from 596 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 597 portalfs, smbfs, xfs. 598 59920121016: 600 The interface cloning API and ABI has changed. The following 601 modules need to be recompiled together with kernel: 602 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 603 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 604 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 605 60620121015: 607 The sdhci driver was split in two parts: sdhci (generic SD Host 608 Controller logic) and sdhci_pci (actual hardware driver). 609 No kernel config modifications are required, but if you 610 load sdhc as a module you must switch to sdhci_pci instead. 611 61220121014: 613 Import the FUSE kernel and userland support into base system. 614 61520121013: 616 The GNU sort(1) program has been removed since the BSD-licensed 617 sort(1) has been the default for quite some time and no serious 618 problems have been reported. The corresponding WITH_GNU_SORT 619 knob has also gone. 620 62120121006: 622 The pfil(9) API/ABI for AF_INET family has been changed. Packet 623 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 624 with new kernel. 625 62620121001: 627 The net80211(4) ABI has been changed to allow for improved driver 628 PS-POLL and power-save support. All wireless drivers need to be 629 recompiled to work with the new kernel. 630 63120120913: 632 The random(4) support for the VIA hardware random number 633 generator (`PADLOCK') is no longer enabled unconditionally. 634 Add the padlock_rng device in the custom kernel config if 635 needed. The GENERIC kernels on i386 and amd64 do include the 636 device, so the change only affects the custom kernel 637 configurations. 638 63920120908: 640 The pf(4) packet filter ABI has been changed. pfctl(8) and 641 snmp_pf module need to be recompiled to work with new kernel. 642 64320120828: 644 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 645 to -HEAD. Pools that have empty_bpobj in active state can not be 646 imported read-write with ZFS implementations that do not support 647 this feature. For more information read the zpool-features(5) 648 manual page. 649 65020120727: 651 The sparc64 ZFS loader has been changed to no longer try to auto- 652 detect ZFS providers based on diskN aliases but now requires these 653 to be explicitly listed in the OFW boot-device environment variable. 654 65520120712: 656 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 657 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 658 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 659 66020120712: 661 The following sysctls and tunables have been renamed for consistency 662 with other variables: 663 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 664 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 665 66620120628: 667 The sort utility has been replaced with BSD sort. For now, GNU sort 668 is also available as "gnusort" or the default can be set back to 669 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 670 installed as "bsdsort". 671 67220120611: 673 A new version of ZFS (pool version 5000) has been merged to -HEAD. 674 Starting with this version the old system of ZFS pool versioning 675 is superseded by "feature flags". This concept enables forward 676 compatibility against certain future changes in functionality of ZFS 677 pools. The first read-only compatible "feature flag" for ZFS pools 678 is named "com.delphix:async_destroy". For more information 679 read the new zpool-features(5) manual page. 680 Please refer to the "ZFS notes" section of this file for information 681 on upgrading boot ZFS pools. 682 68320120417: 684 The malloc(3) implementation embedded in libc now uses sources imported 685 as contrib/jemalloc. The most disruptive API change is to 686 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 687 delete it prior to installworld, and optionally re-create it using the 688 new format after rebooting. See malloc.conf(5) for details 689 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 690 NAMESPACE section). 691 69220120328: 693 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 694 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 695 now spelled mips. This is to aid compatibility with third-party 696 software that expects this naming scheme in uname(3). Little-endian 697 settings are unchanged. If you are updating a big-endian mips64 machine 698 from before this change, you may need to set MACHINE_ARCH=mips64 in 699 your environment before the new build system will recognize your machine. 700 70120120306: 702 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 703 platforms. 704 70520120229: 706 Now unix domain sockets behave "as expected" on nullfs(5). Previously 707 nullfs(5) did not pass through all behaviours to the underlying layer, 708 as a result if we bound to a socket on the lower layer we could connect 709 only to the lower path; if we bound to the upper layer we could connect 710 only to the upper path. The new behavior is one can connect to both the 711 lower and the upper paths regardless what layer path one binds to. 712 71320120211: 714 The getifaddrs upgrade path broken with 20111215 has been restored. 715 If you have upgraded in between 20111215 and 20120209 you need to 716 recompile libc again with your kernel. You still need to recompile 717 world to be able to configure CARP but this restriction already 718 comes from 20111215. 719 72020120114: 721 The set_rcvar() function has been removed from /etc/rc.subr. All 722 base and ports rc.d scripts have been updated, so if you have a 723 port installed with a script in /usr/local/etc/rc.d you can either 724 hand-edit the rcvar= line, or reinstall the port. 725 726 An easy way to handle the mass-update of /etc/rc.d: 727 rm /etc/rc.d/* && mergemaster -i 728 72920120109: 730 panic(9) now stops other CPUs in the SMP systems, disables interrupts 731 on the current CPU and prevents other threads from running. 732 This behavior can be reverted using the kern.stop_scheduler_on_panic 733 tunable/sysctl. 734 The new behavior can be incompatible with kern.sync_on_panic. 735 73620111215: 737 The carp(4) facility has been changed significantly. Configuration 738 of the CARP protocol via ifconfig(8) has changed, as well as format 739 of CARP events submitted to devd(8) has changed. See manual pages 740 for more information. The arpbalance feature of carp(4) is currently 741 not supported anymore. 742 743 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 744 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 745 need to be recompiled. 746 74720111122: 748 The acpi_wmi(4) status device /dev/wmistat has been renamed to 749 /dev/wmistat0. 750 75120111108: 752 The option VFS_ALLOW_NONMPSAFE option has been added in order to 753 explicitely support non-MPSAFE filesystems. 754 It is on by default for all supported platform at this present 755 time. 756 75720111101: 758 The broken amd(4) driver has been replaced with esp(4) in the amd64, 759 i386 and pc98 GENERIC kernel configuration files. 760 76120110930: 762 sysinstall has been removed 763 76420110923: 765 The stable/9 branch created in subversion. This corresponds to the 766 RELENG_9 branch in CVS. 767 76820110913: 769 This commit modifies vfs_register() so that it uses a hash 770 calculation to set vfc_typenum, which is enabled by default. 771 The first time a system is booted after this change, the 772 vfc_typenum values will change for all file systems. The 773 main effect of this is a change to the NFS server file handles 774 for file systems that use vfc_typenum in their fsid, such as ZFS. 775 It will, however, prevent vfc_typenum from changing when file 776 systems are loaded in a different order for subsequent reboots. 777 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 778 until you are ready to remount all NFS clients after a reboot. 779 78020110828: 781 Bump the shared library version numbers for libraries that 782 do not use symbol versioning, have changed the ABI compared 783 to stable/8 and which shared library version was not bumped. 784 Done as part of 9.0-RELEASE cycle. 785 78620110815: 787 During the merge of Capsicum features, the fget(9) KPI was modified. 788 This may require the rebuilding of out-of-tree device drivers -- 789 issues have been reported specifically with the nVidia device driver. 790 __FreeBSD_version is bumped to 900041. 791 792 Also, there is a period between 20110811 and 20110814 where the 793 special devices /dev/{stdin,stdout,stderr} did not work correctly. 794 Building world from a kernel during that window may not work. 795 79620110628: 797 The packet filter (pf) code has been updated to OpenBSD 4.5. 798 You need to update userland tools to be in sync with kernel. 799 This update breaks backward compatibility with earlier pfsync(4) 800 versions. Care must be taken when updating redundant firewall setups. 801 80220110608: 803 The following sysctls and tunables are retired on x86 platforms: 804 machdep.hlt_cpus 805 machdep.hlt_logical_cpus 806 The following sysctl is retired: 807 machdep.hyperthreading_allowed 808 The sysctls were supposed to provide a way to dynamically offline and 809 online selected CPUs on x86 platforms, but the implementation has not 810 been reliable especially with SCHED_ULE scheduler. 811 machdep.hyperthreading_allowed tunable is still available to ignore 812 hyperthreading CPUs at OS level. 813 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 814 where X is an APIC ID of a CPU. Be advised, though, that disabling 815 CPUs in non-uniform fashion will result in non-uniform topology and 816 may lead to sub-optimal system performance with SCHED_ULE, which is 817 a default scheduler. 818 81920110607: 820 cpumask_t type is retired and cpuset_t is used in order to describe 821 a mask of CPUs. 822 82320110531: 824 Changes to ifconfig(8) for dynamic address family detection mandate 825 that you are running a kernel of 20110525 or later. Make sure to 826 follow the update procedure to boot a new kernel before installing 827 world. 828 82920110513: 830 Support for sun4v architecture is officially dropped 831 83220110503: 833 Several KPI breaking changes have been committed to the mii(4) layer, 834 the PHY drivers and consequently some Ethernet drivers using mii(4). 835 This means that miibus.ko and the modules of the affected Ethernet 836 drivers need to be recompiled. 837 838 Note to kernel developers: Given that the OUI bit reversion problem 839 was fixed as part of these changes all mii(4) commits related to OUIs, 840 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 841 handling, no longer can be merged verbatim to stable/8 and previous 842 branches. 843 84420110430: 845 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 846 into their kernel configurations along with 'device pci'. 847 84820110427: 849 The default NFS client is now the new NFS client, so fstype "newnfs" 850 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 851 Although mounts via fstype "nfs" will usually work without userland 852 changes, it is recommended that the mount(8) and mount_nfs(8) 853 commands be rebuilt from sources and that a link to mount_nfs called 854 mount_oldnfs be created. The new client is compiled into the 855 kernel with "options NFSCL" and this is needed for diskless root 856 file systems. The GENERIC kernel configs have been changed to use 857 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 858 To use the regular/old client, you can "mount -t oldnfs ...". For 859 a diskless root file system, you must also include a line like: 860 861 vfs.root.mountfrom="oldnfs:" 862 863 in the boot/loader.conf on the root fs on the NFS server to make 864 a diskless root fs use the old client. 865 86620110424: 867 The GENERIC kernels for all architectures now default to the new 868 CAM-based ATA stack. It means that all legacy ATA drivers were 869 removed and replaced by respective CAM drivers. If you are using 870 ATA device names in /etc/fstab or other places, make sure to update 871 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 872 where 'Y's are the sequential numbers starting from zero for each type 873 in order of detection, unless configured otherwise with tunables, 874 see cam(4)). There will be symbolic links created in /dev/ to map 875 old adX devices to the respective adaY. They should provide basic 876 compatibility for file systems mounting in most cases, but they do 877 not support old user-level APIs and do not have respective providers 878 in GEOM. Consider using updated management tools with new device names. 879 880 It is possible to load devices ahci, ata, siis and mvs as modules, 881 but option ATA_CAM should remain in kernel configuration to make ata 882 module work as CAM driver supporting legacy ATA controllers. Device ata 883 still can be used in modular fashion (atacore + ...). Modules atadisk 884 and atapi* are not used and won't affect operation in ATA_CAM mode. 885 Note that to use CAM-based ATA kernel should include CAM devices 886 scbus, pass, da (or explicitly ada), cd and optionally others. All of 887 them are parts of the cam module. 888 889 ataraid(4) functionality is now supported by the RAID GEOM class. 890 To use it you can load geom_raid kernel module and use graid(8) tool 891 for management. Instead of /dev/arX device names, use /dev/raid/rX. 892 893 No kernel config options or code have been removed, so if a problem 894 arises, please report it and optionally revert to the old ATA stack. 895 In order to do it you can remove from the kernel config: 896 options ATA_CAM 897 device ahci 898 device mvs 899 device siis 900 , and instead add back: 901 device atadisk # ATA disk drives 902 device ataraid # ATA RAID drives 903 device atapicd # ATAPI CDROM drives 904 device atapifd # ATAPI floppy drives 905 device atapist # ATAPI tape drives 906 90720110423: 908 The default NFS server has been changed to the new server, which 909 was referred to as the experimental server. If you need to switch 910 back to the old NFS server, you must now put the "-o" option on 911 both the mountd and nfsd commands. This can be done using the 912 mountd_flags and nfs_server_flags rc.conf variables until an 913 update to the rc scripts is committed, which is coming soon. 914 91520110418: 916 The GNU Objective-C runtime library (libobjc), and other Objective-C 917 related components have been removed from the base system. If you 918 require an Objective-C library, please use one of the available ports. 919 92020110331: 921 ath(4) has been split into bus- and device- modules. if_ath contains 922 the HAL, the TX rate control and the network device code. if_ath_pci 923 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 924 contains the AHB glue. Users need to load both if_ath_pci and if_ath 925 in order to use ath on everything else. 926 927 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 928 need to load if_ath and if_ath_pci for ath(4) operation. 929 93020110314: 931 As part of the replacement of sysinstall, the process of building 932 release media has changed significantly. For details, please re-read 933 release(7), which has been updated to reflect the new build process. 934 93520110218: 936 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 937 is the last available version under GPLv2. It brings a number of new 938 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 939 4.1 and SSE 4.2), better support for powerpc64, a number of new 940 directives, and lots of other small improvements. See the ChangeLog 941 file in contrib/binutils for the full details. 942 94320110218: 944 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 945 compliant, and will now use half of hash for authentication. 946 This will break interoperability with all stacks (including all 947 actual FreeBSD versions) who implement 948 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 949 authentication). 950 The only workaround with such peers is to use another HMAC 951 algorithm for IPsec ("phase 2") authentication. 952 95320110207: 954 Remove the uio_yield prototype and symbol. This function has 955 been misnamed since it was introduced and should not be 956 globally exposed with this name. The equivalent functionality 957 is now available using kern_yield(curthread->td_user_pri). 958 The function remains undocumented. 959 96020110112: 961 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 962 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 963 for scalar sysctls is defined but disabled. Code that needs 964 UQUAD to pass the type checking that must compile on older 965 systems where the define is not present can check against 966 __FreeBSD_version >= 900030. 967 968 The system dialog(1) has been replaced with a new version previously 969 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 970 with the previous version, but the libdialog associated with it has 971 a largely incompatible API. As such, the original version of libdialog 972 will be kept temporarily as libodialog, until its base system consumers 973 are replaced or updated. Bump __FreeBSD_version to 900030. 974 97520110103: 976 If you are trying to run make universe on a -stable system, and you get 977 the following warning: 978 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 979 unknown. config(8) likely too old." 980 or something similar to it, then you must upgrade your -stable system 981 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 982 stable/8) or build the config from the latest stable/8 branch and 983 install it on your system. 984 985 Prior to this date, building a current universe on 8-stable system from 986 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 987 error in the first kernel build phase. A new config on those old 988 systems will fix that problem for older versions of -current. 989 99020101228: 991 The TCP stack has been modified to allow Khelp modules to interact with 992 it via helper hook points and store per-connection data in the TCP 993 control block. Bump __FreeBSD_version to 900029. User space tools that 994 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 995 be recompiled. 996 99720101114: 998 Generic IEEE 802.3 annex 31B full duplex flow control support has been 999 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1000 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1001 to take advantage of it instead of using custom implementations. This 1002 means that these drivers now no longer unconditionally advertise 1003 support for flow control but only do so if flow control is a selected 1004 media option. This was implemented in the generic support that way in 1005 order to allow flow control to be switched on and off via ifconfig(8) 1006 with the PHY specific default to typically off in order to protect 1007 from unwanted effects. Consequently, if you used flow control with 1008 one of the above mentioned drivers you now need to explicitly enable 1009 it, for example via: 1010 ifconfig bge0 media auto mediaopt flowcontrol 1011 1012 Along with the above mentioned changes generic support for setting 1013 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1014 e1000phy(4) as well as ip1000phy(4) have been converted to take 1015 advantage of it. This means that these drivers now no longer take the 1016 link0 parameter for selecting master mode but the master media option 1017 has to be used instead, for example like in the following: 1018 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1019 1020 Selection of master mode now is also available with all other PHY 1021 drivers supporting 1000baseT. 1022 102320101111: 1024 The TCP stack has received a significant update to add support for 1025 modularised congestion control and generally improve the clarity of 1026 congestion control decisions. Bump __FreeBSD_version to 900025. User 1027 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1028 sockstat) need to be recompiled. 1029 103020101002: 1031 The man(1) utility has been replaced by a new version that no longer 1032 uses /etc/manpath.config. Please consult man.conf(5) for how to 1033 migrate local entries to the new format. 1034 103520100928: 1036 The copyright strings printed by login(1) and sshd(8) at the time of a 1037 new connection have been removed to follow other operating systems and 1038 upstream sshd. 1039 104020100915: 1041 A workaround for a fixed ld bug has been removed in kernel code, 1042 so make sure that your system ld is built from sources after 1043 revision 210245 from 2010-07-19 (r211583 if building head kernel 1044 on stable/8, r211584 for stable/7; both from 2010-08-21). 1045 A symptom of incorrect ld version is different addresses for 1046 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1047 104820100913: 1049 The $ipv6_prefer variable in rc.conf(5) has been split into 1050 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1051 1052 The $ip6addrctl_policy is a variable to choose a pre-defined 1053 address selection policy set by ip6addrctl(8). A value 1054 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1055 default is "AUTO". 1056 1057 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1058 flag (see an entry of 20090926) is set on an interface with no 1059 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1060 security reason. If you want IPv6 link-local address on all 1061 interfaces by default, set this to "YES". 1062 1063 The old ipv6_prefer="YES" is equivalent to 1064 ipv6_activate_all_interfaces="YES" and 1065 ip6addrctl_policy="ipv6_prefer". 1066 106720100913: 1068 DTrace has grown support for userland tracing. Due to this, DTrace is 1069 now i386 and amd64 only. 1070 dtruss(1) is now installed by default on those systems and a new 1071 kernel module is needed for userland tracing: fasttrap. 1072 No changes to your kernel config file are necessary to enable 1073 userland tracing, but you might consider adding 'STRIP=' and 1074 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1075 to have informative userland stack traces in DTrace (ustack). 1076 107720100725: 1078 The acpi_aiboost(4) driver has been removed in favor of the new 1079 aibs(4) driver. You should update your kernel configuration file. 1080 108120100722: 1082 BSD grep has been imported to the base system and it is built by 1083 default. It is completely BSD licensed, highly GNU-compatible, uses 1084 less memory than its GNU counterpart and has a small codebase. 1085 However, it is slower than its GNU counterpart, which is mostly 1086 noticeable for larger searches, for smaller ones it is measurable 1087 but not significant. The reason is complex, the most important factor 1088 is that we lack a modern and efficient regex library and GNU 1089 overcomes this by optimizing the searches internally. Future work 1090 on improving the regex performance is planned, for the meantime, 1091 users that need better performance, can build GNU grep instead by 1092 setting the WITH_GNU_GREP knob. 1093 109420100713: 1095 Due to the import of powerpc64 support, all existing powerpc kernel 1096 configuration files must be updated with a machine directive like this: 1097 machine powerpc powerpc 1098 1099 In addition, an updated config(8) is required to build powerpc kernels 1100 after this change. 1101 110220100713: 1103 A new version of ZFS (version 15) has been merged to -HEAD. 1104 This version uses a python library for the following subcommands: 1105 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1106 For full functionality of these commands the following port must 1107 be installed: sysutils/py-zfs 1108 110920100429: 1110 'vm_page's are now hashed by physical address to an array of mutexes. 1111 Currently this is only used to serialize access to hold_count. Over 1112 time the page queue mutex will be peeled away. This changes the size 1113 of pmap on every architecture. And requires all callers of vm_page_hold 1114 and vm_page_unhold to be updated. 1115 111620100402: 1117 WITH_CTF can now be specified in src.conf (not recommended, there 1118 are some problems with static executables), make.conf (would also 1119 affect ports which do not use GNU make and do not override the 1120 compile targets) or in the kernel config (via "makeoptions 1121 WITH_CTF=yes"). 1122 When WITH_CTF was specified there before this was silently ignored, 1123 so make sure that WITH_CTF is not used in places which could lead 1124 to unwanted behavior. 1125 112620100311: 1127 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1128 to allow 32-bit compatibility on non-x86 platforms. All kernel 1129 configurations on amd64 and ia64 platforms using these options must 1130 be modified accordingly. 1131 113220100113: 1133 The utmp user accounting database has been replaced with utmpx, 1134 the user accounting interface standardized by POSIX. 1135 Unfortunately the semantics of utmp and utmpx don't match, 1136 making it practically impossible to support both interfaces. 1137 The user accounting database is used by tools like finger(1), 1138 last(1), talk(1), w(1) and ac(8). 1139 1140 All applications in the base system use utmpx. This means only 1141 local binaries (e.g. from the ports tree) may still use these 1142 utmp database files. These applications must be rebuilt to make 1143 use of utmpx. 1144 1145 After the system has been upgraded, it is safe to remove the old 1146 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1147 assuming their contents is of no importance anymore. Old wtmp 1148 databases can only be used by last(1) and ac(8) after they have 1149 been converted to the new format using wtmpcvt(1). 1150 115120100108: 1152 Introduce the kernel thread "deadlock resolver" (which can be enabled 1153 via the DEADLKRES option, see NOTES for more details) and the 1154 sleepq_type() function for sleepqueues. 1155 115620091202: 1157 The rc.firewall and rc.firewall6 were unified, and 1158 rc.firewall6 and rc.d/ip6fw were removed. 1159 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1160 variables are obsoleted. Instead, the following new rc 1161 variables are added to rc.d/ipfw: 1162 1163 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1164 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1165 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1166 1167 The meanings correspond to the relevant IPv4 variables. 1168 116920091125: 1170 8.0-RELEASE. 1171 117220091113: 1173 The default terminal emulation for syscons(4) has been changed 1174 from cons25 to xterm on all platforms except pc98. This means 1175 that the /etc/ttys file needs to be updated to ensure correct 1176 operation of applications on the console. 1177 1178 The terminal emulation style can be toggled per window by using 1179 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1180 options can be used to change the compile-time default back to 1181 cons25. 1182 1183 To prevent graphical artifacts, make sure the TERM environment 1184 variable is set to match the terminal emulation that is being 1185 performed by syscons(4). 1186 118720091109: 1188 The layout of the structure ieee80211req_scan_result has changed. 1189 Applications that require wireless scan results (e.g. ifconfig(8)) 1190 from net80211 need to be recompiled. 1191 1192 Applications such as wpa_supplicant(8) may require a full world 1193 build without using NO_CLEAN in order to get synchronized with the 1194 new structure. 1195 119620091025: 1197 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1198 There's one kernel module for each firmware. Adding "device iwnfw" 1199 to the kernel configuration file means including all three firmware 1200 images inside the kernel. If you want to include just the one for 1201 your wireless card, use the devices iwn4965fw, iwn5000fw or 1202 iwn5150fw. 1203 120420090926: 1205 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1206 into rc.d/netif. The changes are the following: 1207 1208 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1209 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1210 Note that both variables need the "inet6" keyword at the head. 1211 1212 Do not set $ipv6_network_interfaces manually if you do not 1213 understand what you are doing. It is not needed in most cases. 1214 1215 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1216 they are obsolete. 1217 1218 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1219 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1220 1221 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1222 all configured interfaces have "inet6 accept_rtadv" in the 1223 $ifconfig_IF_ipv6. These are for backward compatibility. 1224 1225 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1226 functionality of interfaces with no corresponding 1227 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1228 and the default address selection policy of ip6addrctl(8) 1229 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1230 Note that if you want to configure IPv6 functionality on the 1231 disabled interfaces after boot, first you need to clear the flag by 1232 using ifconfig(8) like: 1233 1234 ifconfig em0 inet6 -ifdisabled 1235 1236 If YES, the default address selection policy is set as 1237 IPv6-preferred. 1238 1239 The default value of $ipv6_prefer is NO. 1240 1241 4. If your system need to receive Router Advertisement messages, 1242 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1243 scripts automatically invoke rtsol(8) when the interface becomes 1244 UP. The Router Advertisement messages are used for SLAAC 1245 (State-Less Address AutoConfiguration). 1246 124720090922: 1248 802.11s D3.03 support was committed. This is incompatible with the 1249 previous code, which was based on D3.0. 1250 125120090912: 1252 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1253 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1254 control whether accepting Router Advertisement messages or not. 1255 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1256 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1257 The ifconfig(8) utility now supports these flags. 1258 125920090910: 1260 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1261 mount(8) and -a option for df(1) to see them. 1262 126320090825: 1264 The old tunable hw.bus.devctl_disable has been superseded by 1265 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1266 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1267 is 1000. 1268 126920090813: 1270 Remove the option STOP_NMI. The default action is now to use NMI only 1271 for KDB via the newly introduced function stop_cpus_hard() and 1272 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1273 127420090803: 1275 The stable/8 branch created in subversion. This corresponds to the 1276 RELENG_8 branch in CVS. 1277 127820090719: 1279 Bump the shared library version numbers for all libraries that do not 1280 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1281 __FreeBSD_version to 800105. 1282 128320090714: 1284 Due to changes in the implementation of virtual network stack support, 1285 all network-related kernel modules must be recompiled. As this change 1286 breaks the ABI, bump __FreeBSD_version to 800104. 1287 128820090713: 1289 The TOE interface to the TCP syncache has been modified to remove 1290 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1291 The cxgb driver is the only TOE consumer affected by this change, and 1292 needs to be recompiled along with the kernel. As this change breaks 1293 the ABI, bump __FreeBSD_version to 800103. 1294 129520090712: 1296 Padding has been added to struct tcpcb, sackhint and tcpstat in 1297 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1298 maintaining the ABI. However, this change breaks the ABI, so bump 1299 __FreeBSD_version to 800102. User space tools that rely on the size of 1300 any of these structs (e.g. sockstat) need to be recompiled. 1301 130220090630: 1303 The NFS_LEGACYRPC option has been removed along with the old kernel 1304 RPC implementation that this option selected. Kernel configurations 1305 may need to be adjusted. 1306 130720090629: 1308 The network interface device nodes at /dev/net/<interface> have been 1309 removed. All ioctl operations can be performed the normal way using 1310 routing sockets. The kqueue functionality can generally be replaced 1311 with routing sockets. 1312 131320090628: 1314 The documentation from the FreeBSD Documentation Project (Handbook, 1315 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1316 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1317 131820090624: 1319 The ABI of various structures related to the SYSV IPC API have been 1320 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1321 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1322 800100. 1323 132420090622: 1325 Layout of struct vnet has changed as routing related variables were 1326 moved to their own Vimage module. Modules need to be recompiled. Bump 1327 __FreeBSD_version to 800099. 1328 132920090619: 1330 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1331 respectively. As long as no more than 16 groups per process are used, 1332 no changes should be visible. When more than 16 groups are used, old 1333 binaries may fail if they call getgroups() or getgrouplist() with 1334 statically sized storage. Recompiling will work around this, but 1335 applications should be modified to use dynamically allocated storage 1336 for group arrays as POSIX.1-2008 does not cap an implementation's 1337 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1338 1339 NFS and portalfs mounts may also be affected as the list of groups is 1340 truncated to 16. Users of NFS who use more than 16 groups, should 1341 take care that negative group permissions are not used on the exported 1342 file systems as they will not be reliable unless a GSSAPI based 1343 authentication method is used. 1344 134520090616: 1346 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1347 option compiles in the support for adaptive spinning for lockmgrs 1348 which want to enable it. The lockinit() function now accepts the flag 1349 LK_ADAPTIVE in order to make the lock object subject to adaptive 1350 spinning when both held in write and read mode. 1351 135220090613: 1353 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1354 changed. User applications that use this ioctl need to be rebuilt. 1355 135620090611: 1357 The layout of struct thread has changed. Kernel and modules need to 1358 be rebuilt. 1359 136020090608: 1361 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1362 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1363 136420090602: 1365 window(1) has been removed from the base system. It can now be 1366 installed from ports. The port is called misc/window. 1367 136820090601: 1369 The way we are storing and accessing `routing table' entries has 1370 changed. Programs reading the FIB, like netstat, need to be 1371 re-compiled. 1372 137320090601: 1374 A new netisr implementation has been added for FreeBSD 8. Network 1375 file system modules, such as igmp, ipdivert, and others, should be 1376 rebuilt. 1377 Bump __FreeBSD_version to 800096. 1378 137920090530: 1380 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1381 more valid. 1382 138320090530: 1384 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1385 Bump __FreeBSD_version to 800094. 1386 138720090529: 1388 Add mnt_xflag field to 'struct mount'. File system modules need to be 1389 rebuilt. 1390 Bump __FreeBSD_version to 800093. 1391 139220090528: 1393 The compiling option ADAPTIVE_SX has been retired while it has been 1394 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1395 The KPI for sx_init_flags() changes as accepting flags: 1396 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1397 been introduced in order to handle the reversed logic. 1398 Bump __FreeBSD_version to 800092. 1399 140020090527: 1401 Add support for hierarchical jails. Remove global securelevel. 1402 Bump __FreeBSD_version to 800091. 1403 140420090523: 1405 The layout of struct vnet_net has changed, therefore modules 1406 need to be rebuilt. 1407 Bump __FreeBSD_version to 800090. 1408 140920090523: 1410 The newly imported zic(8) produces a new format in the output. Please 1411 run tzsetup(8) to install the newly created data to /etc/localtime. 1412 141320090520: 1414 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1415 hw.usb.* and is now consistent again with previous releases. 1416 141720090520: 1418 802.11 monitor mode support was revised and driver api's were changed. 1419 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1420 of DLT_IEEE802_11. No user-visible data structures were changed but 1421 applications that use DLT_IEEE802_11 may require changes. 1422 Bump __FreeBSD_version to 800088. 1423 142420090430: 1425 The layout of the following structs has changed: sysctl_oid, 1426 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1427 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1428 panics may be experienced. World rebuild is required for 1429 correctly checking networking state from userland. 1430 Bump __FreeBSD_version to 800085. 1431 143220090429: 1433 MLDv2 and Source-Specific Multicast (SSM) have been merged 1434 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1435 The implementation of SSM within FreeBSD's IPv6 stack closely 1436 follows the IPv4 implementation. 1437 1438 For kernel developers: 1439 1440 * The most important changes are that the ip6_output() and 1441 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1442 and this lock has been downgraded to a non-recursive mutex. 1443 1444 * As with the changes to the IPv4 stack to support SSM, filtering 1445 of inbound multicast traffic must now be performed by transport 1446 protocols within the IPv6 stack. This does not apply to TCP and 1447 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1448 1449 * The KPIs used by IPv6 multicast are similar to those used by 1450 the IPv4 stack, with the following differences: 1451 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1452 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1453 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1454 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1455 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1456 for MLDv1 have an additional 'timer' argument which is used to 1457 jitter the initial membership report for the solicited-node 1458 multicast membership on-link. 1459 * This is not strictly needed for MLDv2, which already jitters 1460 its report transmissions. However, the 'timer' argument is 1461 preserved in case MLDv1 is active on the interface. 1462 1463 * The KAME linked-list based IPv6 membership implementation has 1464 been refactored to use a vector similar to that used by the IPv4 1465 stack. 1466 Code which maintains a list of its own multicast memberships 1467 internally, e.g. carp, has been updated to reflect the new 1468 semantics. 1469 1470 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1471 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1472 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1473 implementation constraint which needs to be addressed in HEAD. 1474 1475 For application developers: 1476 1477 * The changes are broadly similar to those made for the IPv4 1478 stack. 1479 1480 * The use of IPv4 and IPv6 multicast socket options on the same 1481 socket, using mapped addresses, HAS NOT been tested or supported. 1482 1483 * There are a number of issues with the implementation of various 1484 IPv6 multicast APIs which need to be resolved in the API surface 1485 before the implementation is fully compatible with KAME userland 1486 use, and these are mostly to do with interface index treatment. 1487 1488 * The literature available discusses the use of either the delta / ASM 1489 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1490 using setsourcefilter(3)/getsourcefilter(3). For more information 1491 please refer to RFC 3768, 'Socket Interface Extensions for 1492 Multicast Source Filters'. 1493 1494 * Applications which use the published RFC 3678 APIs should be fine. 1495 1496 For systems administrators: 1497 1498 * The mtest(8) utility has been refactored to support IPv6, in 1499 addition to IPv4. Interface addresses are no longer accepted 1500 as arguments, their names must be used instead. The utility 1501 will map the interface name to its first IPv4 address as 1502 returned by getifaddrs(3). 1503 1504 * The ifmcstat(8) utility has also been updated to print the MLDv2 1505 endpoint state and source filter lists via sysctl(3). 1506 1507 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1508 loopback of IPv6 multicast datagrams by default; it defaults to 1 1509 to preserve the existing behaviour. Disabling multicast loopback is 1510 recommended for optimal system performance. 1511 1512 * The IPv6 MROUTING code has been changed to examine this sysctl 1513 instead of attempting to perform a group lookup before looping 1514 back forwarded datagrams. 1515 1516 Bump __FreeBSD_version to 800084. 1517 151820090422: 1519 Implement low-level Bluetooth HCI API. 1520 Bump __FreeBSD_version to 800083. 1521 152220090419: 1523 The layout of struct malloc_type, used by modules to register new 1524 memory allocation types, has changed. Most modules will need to 1525 be rebuilt or panics may be experienced. 1526 Bump __FreeBSD_version to 800081. 1527 152820090415: 1529 Anticipate overflowing inp_flags - add inp_flags2. 1530 This changes most offsets in inpcb, so checking v4 connection 1531 state will require a world rebuild. 1532 Bump __FreeBSD_version to 800080. 1533 153420090415: 1535 Add an llentry to struct route and struct route_in6. Modules 1536 embedding a struct route will need to be recompiled. 1537 Bump __FreeBSD_version to 800079. 1538 153920090414: 1540 The size of rt_metrics_lite and by extension rtentry has changed. 1541 Networking administration apps will need to be recompiled. 1542 The route command now supports show as an alias for get, weighting 1543 of routes, sticky and nostick flags to alter the behavior of stateful 1544 load balancing. 1545 Bump __FreeBSD_version to 800078. 1546 154720090408: 1548 Do not use Giant for kbdmux(4) locking. This is wrong and 1549 apparently causing more problems than it solves. This will 1550 re-open the issue where interrupt handlers may race with 1551 kbdmux(4) in polling mode. Typical symptoms include (but 1552 not limited to) duplicated and/or missing characters when 1553 low level console functions (such as gets) are used while 1554 interrupts are enabled (for example geli password prompt, 1555 mountroot prompt etc.). Disabling kbdmux(4) may help. 1556 155720090407: 1558 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1559 kernel modules referencing any of the above need to be recompiled. 1560 Bump __FreeBSD_version to 800075. 1561 156220090320: 1563 GEOM_PART has become the default partition slicer for storage devices, 1564 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1565 introduces some changes: 1566 1567 MSDOS/EBR: the devices created from MSDOS extended partition entries 1568 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1569 to devices with offset-based names. fstabs may need to be modified. 1570 1571 BSD: the "geometry does not match label" warning is harmless in most 1572 cases but it points to problems in file system misalignment with 1573 disk geometry. The "c" partition is now implicit, covers the whole 1574 top-level drive and cannot be (mis)used by users. 1575 1576 General: Kernel dumps are now not allowed to be written to devices 1577 whose partition types indicate they are meant to be used for file 1578 systems (or, in case of MSDOS partitions, as something else than 1579 the "386BSD" type). 1580 1581 Most of these changes date approximately from 200812. 1582 158320090319: 1584 The uscanner(4) driver has been removed from the kernel. This follows 1585 Linux removing theirs in 2.6 and making libusb the default interface 1586 (supported by sane). 1587 158820090319: 1589 The multicast forwarding code has been cleaned up. netstat(1) 1590 only relies on KVM now for printing bandwidth upcall meters. 1591 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1592 ip6_mroute_mod respectively. The config(5) options for statically 1593 compiling this code remain the same, i.e. 'options MROUTING'. 1594 159520090315: 1596 Support for the IFF_NEEDSGIANT network interface flag has been 1597 removed, which means that non-MPSAFE network device drivers are no 1598 longer supported. In particular, if_ar, if_sr, and network device 1599 drivers from the old (legacy) USB stack can no longer be built or 1600 used. 1601 160220090313: 1603 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1604 a bunch of new language catalog files have also been added. 1605 This means that some common libc messages are now localized and 1606 they depend on the LC_MESSAGES environmental variable. 1607 160820090313: 1609 The k8temp(4) driver has been renamed to amdtemp(4) since 1610 support for Family 10 and Family 11 CPU families was added. 1611 161220090309: 1613 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1614 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1615 1616 For kernel developers, the most important changes are that the 1617 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1618 and this lock has been downgraded to a non-recursive mutex. 1619 1620 Transport protocols (UDP, Raw IP) are now responsible for filtering 1621 inbound multicast traffic according to group membership and source 1622 filters. The imo_multicast_filter() KPI exists for this purpose. 1623 Transports which do not use multicast (SCTP, TCP) already reject 1624 multicast by default. Forwarding and receive performance may improve 1625 as a mutex acquisition is no longer needed in the ip_input() 1626 low-level input path. in_addmulti() and in_delmulti() are shimmed 1627 to new KPIs which exist to support SSM in-kernel. 1628 1629 For application developers, it is recommended that loopback of 1630 multicast datagrams be disabled for best performance, as this 1631 will still cause the lock to be taken for each looped-back 1632 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1633 be tuned to 0 to disable loopback by default; it defaults to 1 1634 to preserve the existing behaviour. 1635 1636 For systems administrators, to obtain best performance with 1637 multicast reception and multiple groups, it is always recommended 1638 that a card with a suitably precise hash filter is used. Hash 1639 collisions will still result in the lock being taken within the 1640 transport protocol input path to check group membership. 1641 1642 If deploying FreeBSD in an environment with IGMP snooping switches, 1643 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1644 enabled; this forces 224.0.0.0/24 group membership to be announced 1645 via IGMP. 1646 1647 The size of 'struct igmpstat' has changed; netstat needs to be 1648 recompiled to reflect this. 1649 Bump __FreeBSD_version to 800070. 1650 165120090309: 1652 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1653 updated to use it. This requires a buildworld/installworld in order to 1654 update the library and dependencies (usbconfig, etc). Its advisable to 1655 rebuild all ports which uses libusb. More specific directions are given 1656 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1657 libusb are no longer required and can be removed. 1658 165920090302: 1660 A workaround is committed to allow the creation of System V shared 1661 memory segment of size > 2 GB on the 64-bit architectures. 1662 Due to a limitation of the existing ABI, the shm_segsz member 1663 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1664 wrong for large segments. Note that limits must be explicitly 1665 raised to allow such segments to be created. 1666 166720090301: 1668 The layout of struct ifnet has changed, requiring a rebuild of all 1669 network device driver modules. 1670 167120090227: 1672 The /dev handling for the new USB stack has changed, a 1673 buildworld/installworld is required for libusb20. 1674 167520090223: 1676 The new USB2 stack has now been permanently moved in and all kernel and 1677 module names reverted to their previous values (eg, usb, ehci, ohci, 1678 ums, ...). The old usb stack can be compiled in by prefixing the name 1679 with the letter 'o', the old usb modules have been removed. 1680 Updating entry 20090216 for xorg and 20090215 for libmap may still 1681 apply. 1682 168320090217: 1684 The rc.conf(5) option if_up_delay has been renamed to 1685 defaultroute_delay to better reflect its purpose. If you have 1686 customized this setting in /etc/rc.conf you need to update it to 1687 use the new name. 1688 168920090216: 1690 xorg 7.4 wants to configure its input devices via hald which does not 1691 yet work with USB2. If the keyboard/mouse does not work in xorg then 1692 add 1693 Option "AllowEmptyInput" "off" 1694 to your ServerLayout section. This will cause X to use the configured 1695 kbd and mouse sections from your xorg.conf. 1696 169720090215: 1698 The GENERIC kernels for all architectures now default to the new USB2 1699 stack. No kernel config options or code have been removed so if a 1700 problem arises please report it and optionally revert to the old USB 1701 stack. If you are loading USB kernel modules or have a custom kernel 1702 that includes GENERIC then ensure that usb names are also changed over, 1703 eg uftdi -> usb2_serial_ftdi. 1704 1705 Older programs linked against the ports libusb 0.1 need to be 1706 redirected to the new stack's libusb20. /etc/libmap.conf can 1707 be used for this: 1708 # Map old usb library to new one for usb2 stack 1709 libusb-0.1.so.8 libusb20.so.1 1710 171120090209: 1712 All USB ethernet devices now attach as interfaces under the name ueN 1713 (eg. ue0). This is to provide a predictable name as vendors often 1714 change usb chipsets in a product without notice. 1715 171620090203: 1717 The ichsmb(4) driver has been changed to require SMBus slave 1718 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1719 All of the other SMBus controller drivers require left-justified 1720 slave addresses, so this change makes all the drivers provide the 1721 same interface. 1722 172320090201: 1724 INET6 statistics (struct ip6stat) was updated. 1725 netstat(1) needs to be recompiled. 1726 172720090119: 1728 NTFS has been removed from GENERIC kernel on amd64 to match 1729 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1730 will load ntfs.ko module automatically when NTFS support is 1731 actually needed, unless ntfs.ko is not installed or security 1732 level prohibits loading kernel modules. If either is the case, 1733 "options NTFS" has to be added into kernel config. 1734 173520090115: 1736 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1737 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1738 800061. User space tools that rely on the size of struct tcpcb in 1739 tcp_var.h (e.g. sockstat) need to be recompiled. 1740 174120081225: 1742 ng_tty(4) module updated to match the new TTY subsystem. 1743 Due to API change, user-level applications must be updated. 1744 New API support added to mpd5 CVS and expected to be present 1745 in next mpd5.3 release. 1746 174720081219: 1748 With __FreeBSD_version 800060 the makefs tool is part of 1749 the base system (it was a port). 1750 175120081216: 1752 The afdata and ifnet locks have been changed from mutexes to 1753 rwlocks, network modules will need to be re-compiled. 1754 175520081214: 1756 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1757 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1758 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1759 architecture and 40 bytes on 64-bit architecture. The userland 1760 applications "arp" and "ndp" have been updated accordingly. 1761 The output from "netstat -r" shows only routing entries and 1762 none of the L2 information. 1763 176420081130: 1765 __FreeBSD_version 800057 marks the switchover from the 1766 binary ath hal to source code. Users must add the line: 1767 1768 options AH_SUPPORT_AR5416 1769 1770 to their kernel config files when specifying: 1771 1772 device ath_hal 1773 1774 The ath_hal module no longer exists; the code is now compiled 1775 together with the driver in the ath module. It is now 1776 possible to tailor chip support (i.e. reduce the set of chips 1777 and thereby the code size); consult ath_hal(4) for details. 1778 177920081121: 1780 __FreeBSD_version 800054 adds memory barriers to 1781 <machine/atomic.h>, new interfaces to ifnet to facilitate 1782 multiple hardware transmit queues for cards that support 1783 them, and a lock-less ring-buffer implementation to 1784 enable drivers to more efficiently manage queueing of 1785 packets. 1786 178720081117: 1788 A new version of ZFS (version 13) has been merged to -HEAD. 1789 This version has zpool attribute "listsnapshots" off by 1790 default, which means "zfs list" does not show snapshots, 1791 and is the same as Solaris behavior. 1792 179320081028: 1794 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1795 179620081009: 1797 The uhci, ohci, ehci and slhci USB Host controller drivers have 1798 been put into separate modules. If you load the usb module 1799 separately through loader.conf you will need to load the 1800 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1801 controller add the following to loader.conf: 1802 1803 uhci_load="YES" 1804 ehci_load="YES" 1805 180620081009: 1807 The ABI used by the PMC toolset has changed. Please keep 1808 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1809 sync. 1810 181120081009: 1812 atapci kernel module now includes only generic PCI ATA 1813 driver. AHCI driver moved to ataahci kernel module. 1814 All vendor-specific code moved into separate kernel modules: 1815 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1816 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1817 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1818 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1819 182020080820: 1821 The TTY subsystem of the kernel has been replaced by a new 1822 implementation, which provides better scalability and an 1823 improved driver model. Most common drivers have been migrated to 1824 the new TTY subsystem, while others have not. The following 1825 drivers have not yet been ported to the new TTY layer: 1826 1827 PCI/ISA: 1828 cy, digi, rc, rp, sio 1829 1830 USB: 1831 ubser, ucycom 1832 1833 Line disciplines: 1834 ng_h4, ng_tty, ppp, sl, snp 1835 1836 Adding these drivers to your kernel configuration file shall 1837 cause compilation to fail. 1838 183920080818: 1840 ntpd has been upgraded to 4.2.4p5. 1841 184220080801: 1843 OpenSSH has been upgraded to 5.1p1. 1844 1845 For many years, FreeBSD's version of OpenSSH preferred DSA 1846 over RSA for host and user authentication keys. With this 1847 upgrade, we've switched to the vendor's default of RSA over 1848 DSA. This may cause upgraded clients to warn about unknown 1849 host keys even for previously known hosts. Users should 1850 follow the usual procedure for verifying host keys before 1851 accepting the RSA key. 1852 1853 This can be circumvented by setting the "HostKeyAlgorithms" 1854 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1855 command line. 1856 1857 Please note that the sequence of keys offered for 1858 authentication has been changed as well. You may want to 1859 specify IdentityFile in a different order to revert this 1860 behavior. 1861 186220080713: 1863 The sio(4) driver has been removed from the i386 and amd64 1864 kernel configuration files. This means uart(4) is now the 1865 default serial port driver on those platforms as well. 1866 1867 To prevent collisions with the sio(4) driver, the uart(4) driver 1868 uses different names for its device nodes. This means the 1869 onboard serial port will now most likely be called "ttyu0" 1870 instead of "ttyd0". You may need to reconfigure applications to 1871 use the new device names. 1872 1873 When using the serial port as a boot console, be sure to update 1874 /boot/device.hints and /etc/ttys before booting the new kernel. 1875 If you forget to do so, you can still manually specify the hints 1876 at the loader prompt: 1877 1878 set hint.uart.0.at="isa" 1879 set hint.uart.0.port="0x3F8" 1880 set hint.uart.0.flags="0x10" 1881 set hint.uart.0.irq="4" 1882 boot -s 1883 188420080609: 1885 The gpt(8) utility has been removed. Use gpart(8) to partition 1886 disks instead. 1887 188820080603: 1889 The version that Linuxulator emulates was changed from 2.4.2 1890 to 2.6.16. If you experience any problems with Linux binaries 1891 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1892 if it fixes the problem contact emulation mailing list. 1893 189420080525: 1895 ISDN4BSD (I4B) was removed from the src tree. You may need to 1896 update a your kernel configuration and remove relevant entries. 1897 189820080509: 1899 I have checked in code to support multiple routing tables. 1900 See the man pages setfib(1) and setfib(2). 1901 This is a hopefully backwards compatible version, 1902 but to make use of it you need to compile your kernel 1903 with options ROUTETABLES=2 (or more up to 16). 1904 190520080420: 1906 The 802.11 wireless support was redone to enable multi-bss 1907 operation on devices that are capable. The underlying device 1908 is no longer used directly but instead wlanX devices are 1909 cloned with ifconfig. This requires changes to rc.conf files. 1910 For example, change: 1911 ifconfig_ath0="WPA DHCP" 1912 to 1913 wlans_ath0=wlan0 1914 ifconfig_wlan0="WPA DHCP" 1915 see rc.conf(5) for more details. In addition, mergemaster of 1916 /etc/rc.d is highly recommended. Simultaneous update of userland 1917 and kernel wouldn't hurt either. 1918 1919 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1920 modules were merged into the base wlan module. All references 1921 to these modules (e.g. in kernel config files) must be removed. 1922 192320080408: 1924 psm(4) has gained write(2) support in native operation level. 1925 Arbitrary commands can be written to /dev/psm%d and status can 1926 be read back from it. Therefore, an application is responsible 1927 for status validation and error recovery. It is a no-op in 1928 other operation levels. 1929 193020080312: 1931 Support for KSE threading has been removed from the kernel. To 1932 run legacy applications linked against KSE libmap.conf may 1933 be used. The following libmap.conf may be used to ensure 1934 compatibility with any prior release: 1935 1936 libpthread.so.1 libthr.so.1 1937 libpthread.so.2 libthr.so.2 1938 libkse.so.3 libthr.so.3 1939 194020080301: 1941 The layout of struct vmspace has changed. This affects libkvm 1942 and any executables that link against libkvm and use the 1943 kvm_getprocs() function. In particular, but not exclusively, 1944 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1945 The effects are minimal, but it's advisable to upgrade world 1946 nonetheless. 1947 194820080229: 1949 The latest em driver no longer has support in it for the 1950 82575 adapter, this is now moved to the igb driver. The 1951 split was done to make new features that are incompatible 1952 with older hardware easier to do. 1953 195420080220: 1955 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1956 likewise the kernel option is now GEOM_LINUX_LVM. 1957 195820080211: 1959 The default NFS mount mode has changed from UDP to TCP for 1960 increased reliability. If you rely on (insecurely) NFS 1961 mounting across a firewall you may need to update your 1962 firewall rules. 1963 196420080208: 1965 Belatedly note the addition of m_collapse for compacting 1966 mbuf chains. 1967 196820080126: 1969 The fts(3) structures have been changed to use adequate 1970 integer types for their members and so to be able to cope 1971 with huge file trees. The old fts(3) ABI is preserved 1972 through symbol versioning in libc, so third-party binaries 1973 using fts(3) should still work, although they will not take 1974 advantage of the extended types. At the same time, some 1975 third-party software might fail to build after this change 1976 due to unportable assumptions made in its source code about 1977 fts(3) structure members. Such software should be fixed 1978 by its vendor or, in the worst case, in the ports tree. 1979 FreeBSD_version 800015 marks this change for the unlikely 1980 case that a portable fix is impossible. 1981 198220080123: 1983 To upgrade to -current after this date, you must be running 1984 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1985 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1986 198720071128: 1988 The ADAPTIVE_GIANT kernel option has been retired because its 1989 functionality is the default now. 1990 199120071118: 1992 The AT keyboard emulation of sunkbd(4) has been turned on 1993 by default. In order to make the special symbols of the Sun 1994 keyboards driven by sunkbd(4) work under X these now have 1995 to be configured the same way as Sun USB keyboards driven 1996 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1997 1998 Option "XkbLayout" "us" 1999 Option "XkbRules" "xorg" 2000 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2001 200220071024: 2003 It has been decided that it is desirable to provide ABI 2004 backwards compatibility to the FreeBSD 4/5/6 versions of the 2005 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2006 broken with the introduction of PCI domain support (see the 2007 20070930 entry). Unfortunately, this required the ABI of 2008 PCIOCGETCONF to be broken again in order to be able to 2009 provide backwards compatibility to the old version of that 2010 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2011 again. As for prominent ports this affects neither pciutils 2012 nor xorg-server this time, the hal port needs to be rebuilt 2013 however. 2014 201520071020: 2016 The misnamed kthread_create() and friends have been renamed 2017 to kproc_create() etc. Many of the callers already 2018 used kproc_start().. 2019 I will return kthread_create() and friends in a while 2020 with implementations that actually create threads, not procs. 2021 Renaming corresponds with version 800002. 2022 202320071010: 2024 RELENG_7 branched. 2025 2026COMMON ITEMS: 2027 2028 General Notes 2029 ------------- 2030 Avoid using make -j when upgrading. While generally safe, there are 2031 sometimes problems using -j to upgrade. If your upgrade fails with 2032 -j, please try again without -j. From time to time in the past there 2033 have been problems using -j with buildworld and/or installworld. This 2034 is especially true when upgrading between "distant" versions (eg one 2035 that cross a major release boundary or several minor releases, or when 2036 several months have passed on the -current branch). 2037 2038 Sometimes, obscure build problems are the result of environment 2039 poisoning. This can happen because the make utility reads its 2040 environment when searching for values for global variables. To run 2041 your build attempts in an "environmental clean room", prefix all make 2042 commands with 'env -i '. See the env(1) manual page for more details. 2043 2044 When upgrading from one major version to another it is generally best 2045 to upgrade to the latest code in the currently installed branch first, 2046 then do an upgrade to the new branch. This is the best-tested upgrade 2047 path, and has the highest probability of being successful. Please try 2048 this approach before reporting problems with a major version upgrade. 2049 2050 When upgrading a live system, having a root shell around before 2051 installing anything can help undo problems. Not having a root shell 2052 around can lead to problems if pam has changed too much from your 2053 starting point to allow continued authentication after the upgrade. 2054 2055 ZFS notes 2056 --------- 2057 When upgrading the boot ZFS pool to a new version, always follow 2058 these two steps: 2059 2060 1.) recompile and reinstall the ZFS boot loader and boot block 2061 (this is part of "make buildworld" and "make installworld") 2062 2063 2.) update the ZFS boot block on your boot drive 2064 2065 The following example updates the ZFS boot block on the first 2066 partition (freebsd-boot) of a GPT partitioned drive ad0: 2067 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2068 2069 Non-boot pools do not need these updates. 2070 2071 To build a kernel 2072 ----------------- 2073 If you are updating from a prior version of FreeBSD (even one just 2074 a few days old), you should follow this procedure. It is the most 2075 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2076 2077 make kernel-toolchain 2078 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2079 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2080 2081 To test a kernel once 2082 --------------------- 2083 If you just want to boot a kernel once (because you are not sure 2084 if it works, or if you want to boot a known bad kernel to provide 2085 debugging information) run 2086 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2087 nextboot -k testkernel 2088 2089 To just build a kernel when you know that it won't mess you up 2090 -------------------------------------------------------------- 2091 This assumes you are already running a CURRENT system. Replace 2092 ${arch} with the architecture of your machine (e.g. "i386", 2093 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2094 2095 cd src/sys/${arch}/conf 2096 config KERNEL_NAME_HERE 2097 cd ../compile/KERNEL_NAME_HERE 2098 make depend 2099 make 2100 make install 2101 2102 If this fails, go to the "To build a kernel" section. 2103 2104 To rebuild everything and install it on the current system. 2105 ----------------------------------------------------------- 2106 # Note: sometimes if you are running current you gotta do more than 2107 # is listed here if you are upgrading from a really old current. 2108 2109 <make sure you have good level 0 dumps> 2110 make buildworld 2111 make kernel KERNCONF=YOUR_KERNEL_HERE 2112 [1] 2113 <reboot in single user> [3] 2114 mergemaster -p [5] 2115 make installworld 2116 mergemaster -i [4] 2117 make delete-old [6] 2118 <reboot> 2119 2120 To cross-install current onto a separate partition 2121 -------------------------------------------------- 2122 # In this approach we use a separate partition to hold 2123 # current's root, 'usr', and 'var' directories. A partition 2124 # holding "/", "/usr" and "/var" should be about 2GB in 2125 # size. 2126 2127 <make sure you have good level 0 dumps> 2128 <boot into -stable> 2129 make buildworld 2130 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2131 <maybe newfs current's root partition> 2132 <mount current's root partition on directory ${CURRENT_ROOT}> 2133 make installworld DESTDIR=${CURRENT_ROOT} 2134 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2135 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2136 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2137 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2138 <reboot into current> 2139 <do a "native" rebuild/install as described in the previous section> 2140 <maybe install compatibility libraries from ports/misc/compat*> 2141 <reboot> 2142 2143 2144 To upgrade in-place from stable to current 2145 ---------------------------------------------- 2146 <make sure you have good level 0 dumps> 2147 make buildworld [9] 2148 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2149 [1] 2150 <reboot in single user> [3] 2151 mergemaster -p [5] 2152 make installworld 2153 mergemaster -i [4] 2154 make delete-old [6] 2155 <reboot> 2156 2157 Make sure that you've read the UPDATING file to understand the 2158 tweaks to various things you need. At this point in the life 2159 cycle of current, things change often and you are on your own 2160 to cope. The defaults can also change, so please read ALL of 2161 the UPDATING entries. 2162 2163 Also, if you are tracking -current, you must be subscribed to 2164 freebsd-current@freebsd.org. Make sure that before you update 2165 your sources that you have read and understood all the recent 2166 messages there. If in doubt, please track -stable which has 2167 much fewer pitfalls. 2168 2169 [1] If you have third party modules, such as vmware, you 2170 should disable them at this point so they don't crash your 2171 system on reboot. 2172 2173 [3] From the bootblocks, boot -s, and then do 2174 fsck -p 2175 mount -u / 2176 mount -a 2177 cd src 2178 adjkerntz -i # if CMOS is wall time 2179 Also, when doing a major release upgrade, it is required that 2180 you boot into single user mode to do the installworld. 2181 2182 [4] Note: This step is non-optional. Failure to do this step 2183 can result in a significant reduction in the functionality of the 2184 system. Attempting to do it by hand is not recommended and those 2185 that pursue this avenue should read this file carefully, as well 2186 as the archives of freebsd-current and freebsd-hackers mailing lists 2187 for potential gotchas. The -U option is also useful to consider. 2188 See mergemaster(8) for more information. 2189 2190 [5] Usually this step is a noop. However, from time to time 2191 you may need to do this if you get unknown user in the following 2192 step. It never hurts to do it all the time. You may need to 2193 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2194 install) after the buildworld before this step if you last updated 2195 from current before 20130425 or from -stable before 20130430. 2196 2197 [6] This only deletes old files and directories. Old libraries 2198 can be deleted by "make delete-old-libs", but you have to make 2199 sure that no program is using those libraries anymore. 2200 2201 [8] In order to have a kernel that can run the 4.x binaries needed to 2202 do an installworld, you must include the COMPAT_FREEBSD4 option in 2203 your kernel. Failure to do so may leave you with a system that is 2204 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2205 required to run the 5.x binaries on more recent kernels. And so on 2206 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2207 2208 Make sure that you merge any new devices from GENERIC since the 2209 last time you updated your kernel config file. 2210 2211 [9] When checking out sources, you must include the -P flag to have 2212 cvs prune empty directories. 2213 2214 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2215 "?=" instead of the "=" assignment operator, so that buildworld can 2216 override the CPUTYPE if it needs to. 2217 2218 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2219 not on the command line, or in /etc/make.conf. buildworld will 2220 warn if it is improperly defined. 2221FORMAT: 2222 2223This file contains a list, in reverse chronological order, of major 2224breakages in tracking -current. It is not guaranteed to be a complete 2225list of such breakages, and only contains entries since October 10, 2007. 2226If you need to see UPDATING entries from before that date, you will need 2227to fetch an UPDATING file from an older FreeBSD release. 2228 2229Copyright information: 2230 2231Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2232 2233Redistribution, publication, translation and use, with or without 2234modification, in full or in part, in any form or format of this 2235document are permitted without further permission from the author. 2236 2237THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2238IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2239WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2240DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2241INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2242(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2243SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2244HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2245STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2246IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2247POSSIBILITY OF SUCH DAMAGE. 2248 2249Contact Warner Losh if you have any questions about your use of 2250this document. 2251 2252$FreeBSD: releng/10.1/UPDATING 285780 2015-07-21 23:42:56Z delphij $ 2253