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 1920150225: p18 FreeBSD-SA-15:04.igmp 20 FreeBSD-EN-15:01.vt 21 FreeBSD-EN-15:02.openssl 22 FreeBSD-EN-15:03.freebsd-update 23 24 Fix integer overflow in IGMP protocol. [SA-15:04] 25 26 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 27 28 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 29 30 Fix freebsd-update libraries update ordering issue. [EN-15:03] 31 3220150127: p17 FreeBSD-SA-15:02.kmem 33 FreeBSD-SA-15:03.sctp 34 35 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 36 vulnerability. [SA-15:02] 37 38 Fix SCTP stream reset vulnerability. [SA-15:03] 39 4020150114: p16 FreeBSD-SA-15:01.openssl 41 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 42 4320141223: p15 FreeBSD-SA-14:31.ntp 44 FreeBSD-EN-14:13.freebsd-update 45 46 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 47 Fix directory deletion issue in freebsd-update. [EN-14:13] 48 4920141217: p14 FreeBSD-SA-14:30.unbound 50 Fix unbound remote denial of service vulnerability. 51 5220141210: p13 FreeBSD-SA-14:28.file 53 Fix multiple vulnerabilities in file(1) and libmagic(3). 54 5520141104: p12 FreeBSD-SA-14:24.sshd 56 FreeBSD-SA-14:25.setlogin 57 FreeBSD-SA-14:26.ftp 58 FreeBSD-EN-14:12.zfs 59 60 Fix denial of service attack against sshd(8). [SA-14:24] 61 62 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 63 [SA-14:25] 64 65 Fix remote command execution in ftp(1). [SA-14:26] 66 67 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 68 6920141022: p11 FreeBSD-EN-14:10.tzdata 70 71 Time zone data file update. [EN-14:10] 72 7320141021: p10 FreeBSD-SA-14:20.rtsold 74 FreeBSD-SA-14:21.routed 75 FreeBSD-SA-14:22.namei 76 FreeBSD-SA-14:23.openssl 77 78 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 79 80 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 81 82 Fix memory leak in sandboxed namei lookup. [SA-14:22] 83 84 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 85 8620140916: p9 FreeBSD-SA-14:19.tcp 87 Fix Denial of Service in TCP packet processing. [SA-14:19] 88 8920140909: p8 FreeBSD-SA-14:18.openssl 90 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 91 9220140708: p7 FreeBSD-SA-14:17.kmem 93 Fix kernel memory disclosure in control messages and SCTP 94 notifications. [SA-14:17] 95 9620140624: p6 FreeBSD-SA-14:15.iconv 97 FreeBSD-SA-14:16.file 98 FreeBSD-EN-14:07.pmap 99 100 Fix iconv(3) NULL pointer dereference and out-of-bounds array 101 access. [SA-14:15] 102 103 Fix multiple vulnerabilities in file(1) and libmagic(3). 104 [SA-14:16] 105 106 Worked around bug with PCID implementation. [EN-14:07] 107 10820140605: p5 FreeBSD-SA-14:14.openssl 109 Fix OpenSSL multiple vulnerabilities. [SA-14:14] 110 11120140603: p4 FreeBSD-SA-14:11.sendmail 112 FreeBSD-SA-14:13.pam 113 FreeBSD-EN-14:06.exec 114 115 Fix sendmail improper close-on-exec flag handling. [SA-14:11] 116 117 Fix incorrect error handling in PAM policy parser. [SA-14:13] 118 119 Fix triple-fault when executing from a threaded process. 120 [EN-14:06] 121 12220140513: p3 FreeBSD-SA-14:10.openssl 123 FreeBSD-EN-14:05.ciss 124 125 Fix OpenSSL NULL pointer deference vulnerability. [SA-14:10] 126 127 Fix data corruption with ciss(4). [EN-14:05] 128 12920140430: p2 FreeBSD-SA-14:07.devfs 130 FreeBSD-SA-14:08.tcp 131 FreeBSD-SA-14:09.openssl 132 133 Fix devfs rules not applied by default for jails. [SA-14:07] 134 135 Fix TCP reassembly vulnerability. [SA-14:08] 136 137 Fix OpenSSL use-after-free vulnerability. [SA-14:09] 138 13920140408: p1 FreeBSD-SA-14:05.nfsserver 140 FreeBSD-SA-14:06.openssl 141 Fix deadlock in the NFS server. [SA-14:05] 142 143 Fix multiple vulnerabilities in OpenSSL. [SA-14:06] 144 14520131223: 146 The behavior of gss_pseudo_random() for the krb5 mechanism 147 has changed, for applications requesting a longer random string 148 than produced by the underlying enctype's pseudo-random() function. 149 In particular, the random string produced from a session key of 150 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 151 be different at the 17th octet and later, after this change. 152 The counter used in the PRF+ construction is now encoded as a 153 big-endian integer in accordance with RFC 4402. 154 15520131031: 156 The default version of mtree is nmtree which is obtained from 157 NetBSD. The output is generally the same, but may vary 158 slightly. If you found you need identical output adding 159 "-F freebsd9" to the command line should do the trick. For the 160 time being, the old mtree is available as fmtree. 161 16220131014: 163 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 164 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 165 1.1.4_8 and verify bsdyml not linked in, before running "make 166 delete-old-libs": 167 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 168 or 169 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 170 17120131010: 172 The rc.d/jail script has been updated to support jail(8) 173 configuration file. The "jail_<jname>_*" rc.conf(5) variables 174 for per-jail configuration are automatically converted to 175 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 176 This is transparently backward compatible. See below about some 177 incompatibilities and rc.conf(5) manual page for more details. 178 179 These variables are now deprecated in favor of jail(8) configuration 180 file. One can use "rc.d/jail config <jname>" command to generate 181 a jail(8) configuration file in /var/run/jail.<jname>.conf without 182 running the jail(8) utility. The default pathname of the 183 configuration file is /etc/jail.conf and can be specified by 184 using $jail_conf or $jail_<jname>_conf variables. 185 186 Please note that jail_devfs_ruleset accepts an integer at 187 this moment. Please consider to rewrite the ruleset name 188 with an integer. 189 19020130930: 191 BIND has been removed from the base system. If all you need 192 is a local resolver, simply enable and start the local_unbound 193 service instead. Otherwise, several versions of BIND are 194 available in the ports tree. The dns/bind99 port is one example. 195 196 With this change, nslookup(1) and dig(1) are no longer in the base 197 system. Users should instead use host(1) and drill(1) which are 198 in the base system. Alternatively, nslookup and dig can 199 be obtained by installing the dns/bind-tools port. 200 20120130916: 202 With the addition of unbound(8), a new unbound user is now 203 required during installworld. "mergemaster -p" can be used to 204 add the user prior to installworld, as documented in the handbook. 205 20620130911: 207 OpenSSH is now built with DNSSEC support, and will by default 208 silently trust signed SSHFP records. This can be controlled with 209 the VerifyHostKeyDNS client configuration setting. DNSSEC support 210 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 211 21220130906: 213 The GNU Compiler Collection and C++ standard library (libstdc++) 214 are no longer built by default on platforms where clang is the system 215 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 216 options in src.conf. 217 21820130905: 219 The PROCDESC kernel option is now part of the GENERIC kernel 220 configuration and is required for the rwhod(8) to work. 221 If you are using custom kernel configuration, you should include 222 'options PROCDESC'. 223 22420130905: 225 The API and ABI related to the Capsicum framework was modified 226 in backward incompatible way. The userland libraries and programs 227 have to be recompiled to work with the new kernel. This includes the 228 following libraries and programs, but the whole buildworld is 229 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 230 kdump, procstat, rwho, rwhod, uniq. 231 23220130903: 233 AES-NI intrinsic support has been added to gcc. The AES-NI module 234 has been updated to use this support. A new gcc is required to build 235 the aesni module on both i386 and amd64. 236 23720130821: 238 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 239 Thus "device padlock_rng" and "device rdrand_rng" should be 240 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 241 24220130813: 243 WITH_ICONV has been split into two feature sets. WITH_ICONV now 244 enables just the iconv* functionality and is now on by default. 245 WITH_LIBICONV_COMPAT enables the libiconv api and link time 246 compatability. Set WITHOUT_ICONV to build the old way. 247 If you have been using WITH_ICONV before, you will very likely 248 need to turn on WITH_LIBICONV_COMPAT. 249 25020130806: 251 INVARIANTS option now enables DEBUG for code with OpenSolaris and 252 Illumos origin, including ZFS. If you have INVARIANTS in your 253 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 254 explicitly. 255 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 256 locks if WITNESS option was set. Because that generated a lot of 257 witness(9) reports and all of them were believed to be false 258 positives, this is no longer done. New option OPENSOLARIS_WITNESS 259 can be used to achieve the previous behavior. 260 26120130806: 262 Timer values in IPv6 data structures now use time_uptime instead 263 of time_second. Although this is not a user-visible functional 264 change, userland utilities which directly use them---ndp(8), 265 rtadvd(8), and rtsold(8) in the base system---need to be updated 266 to r253970 or later. 267 26820130802: 269 find -delete can now delete the pathnames given as arguments, 270 instead of only files found below them or if the pathname did 271 not contain any slashes. Formerly, the following error message 272 would result: 273 274 find: -delete: <path>: relative path potentially not safe 275 276 Deleting the pathnames given as arguments can be prevented 277 without error messages using -mindepth 1 or by changing 278 directory and passing "." as argument to find. This works in the 279 old as well as the new version of find. 280 28120130726: 282 Behavior of devfs rules path matching has been changed. 283 Pattern is now always matched against fully qualified devfs 284 path and slash characters must be explicitly matched by 285 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 286 subdirectories must be reviewed. 287 28820130716: 289 The default ARM ABI has changed to the ARM EABI. The old ABI is 290 incompatible with the ARM EABI and all programs and modules will 291 need to be rebuilt to work with a new kernel. 292 293 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 294 295 NOTE: Support for the old ABI will be removed in the future and 296 users are advised to upgrade. 297 29820130709: 299 pkg_install has been disconnected from the build if you really need it 300 you should add WITH_PKGTOOLS in your src.conf(5). 301 30220130709: 303 Most of network statistics structures were changed to be able 304 keep 64-bits counters. Thus all tools, that work with networking 305 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 306 30720130629: 308 Fix targets that run multiple make's to use && rather than ; 309 so that subsequent steps depend on success of previous. 310 311 NOTE: if building 'universe' with -j* on stable/8 or stable/9 312 it would be better to start the build using bmake, to avoid 313 overloading the machine. 314 31520130618: 316 Fix a bug that allowed a tracing process (e.g. gdb) to write 317 to a memory-mapped file in the traced process's address space 318 even if neither the traced process nor the tracing process had 319 write access to that file. 320 32120130615: 322 CVS has been removed from the base system. An exact copy 323 of the code is available from the devel/cvs port. 324 32520130613: 326 Some people report the following error after the switch to bmake: 327 328 make: illegal option -- J 329 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 330 ... 331 *** [buildworld] Error code 2 332 333 this likely due to an old instance of make in 334 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 335 which src/Makefile will use that blindly, if it exists, so if 336 you see the above error: 337 338 rm -rf `make -V MAKEPATH` 339 340 should resolve it. 341 34220130516: 343 Use bmake by default. 344 Whereas before one could choose to build with bmake via 345 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 346 make. The goal is to remove these knobs for 10-RELEASE. 347 348 It is worth noting that bmake (like gmake) treats the command 349 line as the unit of failure, rather than statements within the 350 command line. Thus '(cd some/where && dosomething)' is safer 351 than 'cd some/where; dosomething'. The '()' allows consistent 352 behavior in parallel build. 353 35420130429: 355 Fix a bug that allows NFS clients to issue READDIR on files. 356 35720130426: 358 The WITHOUT_IDEA option has been removed because 359 the IDEA patent expired. 360 36120130426: 362 The sysctl which controls TRIM support under ZFS has been renamed 363 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 364 enabled by default. 365 36620130425: 367 The mergemaster command now uses the default MAKEOBJDIRPREFIX 368 rather than creating it's own in the temporary directory in 369 order allow access to bootstrapped versions of tools such as 370 install and mtree. When upgrading from version of FreeBSD where 371 the install command does not support -l, you will need to 372 install a new mergemaster command if mergemaster -p is required. 373 This can be accomplished with the command (cd src/usr.sbin/mergemaster 374 && make install). 375 37620130404: 377 Legacy ATA stack, disabled and replaced by new CAM-based one since 378 FreeBSD 9.0, completely removed from the sources. Kernel modules 379 atadisk and atapi*, user-level tools atacontrol and burncd are 380 removed. Kernel option `options ATA_CAM` is now permanently enabled 381 and removed. 382 38320130319: 384 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 385 and socketpair(2). Software, in particular Kerberos, may 386 automatically detect and use these during building. The resulting 387 binaries will not work on older kernels. 388 38920130308: 390 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 391 information, see the respective 20130304 entry). 392 39320130304: 394 Recent commits to callout(9) changed the size of struct callout, 395 so the KBI is probably heavily disturbed. Also, some functions 396 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 397 by macros. Every kernel module using it won't load, so rebuild 398 is requested. 399 400 The ctl device has been re-enabled in GENERIC for i386 and amd64, 401 but does not initialize by default (because of the new CTL_DISABLE 402 option) to save memory. To re-enable it, remove the CTL_DISABLE 403 option from the kernel config file or set kern.cam.ctl.disable=0 404 in /boot/loader.conf. 405 40620130301: 407 The ctl device has been disabled in GENERIC for i386 and amd64. 408 This was done due to the extra memory being allocated at system 409 initialisation time by the ctl driver which was only used if 410 a CAM target device was created. This makes a FreeBSD system 411 unusable on 128MB or less of RAM. 412 41320130208: 414 A new compression method (lz4) has been merged to -HEAD. Please 415 refer to zpool-features(7) for more information. 416 417 Please refer to the "ZFS notes" section of this file for information 418 on upgrading boot ZFS pools. 419 42020130129: 421 A BSD-licensed patch(1) variant has been added and is installed 422 as bsdpatch, being the GNU version the default patch. 423 To inverse the logic and use the BSD-licensed one as default, 424 while having the GNU version installed as gnupatch, rebuild 425 and install world with the WITH_BSD_PATCH knob set. 426 42720130121: 428 Due to the use of the new -l option to install(1) during build 429 and install, you must take care not to directly set the INSTALL 430 make variable in your /etc/make.conf, /etc/src.conf, or on the 431 command line. If you wish to use the -C flag for all installs 432 you may be able to add INSTALL+=-C to /etc/make.conf or 433 /etc/src.conf. 434 43520130118: 436 The install(1) option -M has changed meaning and now takes an 437 argument that is a file or path to append logs to. In the 438 unlikely event that -M was the last option on the command line 439 and the command line contained at least two files and a target 440 directory the first file will have logs appended to it. The -M 441 option served little practical purpose in the last decade so its 442 use is expected to be extremely rare. 443 44420121223: 445 After switching to Clang as the default compiler some users of ZFS 446 on i386 systems started to experience stack overflow kernel panics. 447 Please consider using 'options KSTACK_PAGES=4' in such configurations. 448 44920121222: 450 GEOM_LABEL now mangles label names read from file system metadata. 451 Mangling affect labels containing spaces, non-printable characters, 452 '%' or '"'. Device names in /etc/fstab and other places may need to 453 be updated. 454 45520121217: 456 By default, only the 10 most recent kernel dumps will be saved. To 457 restore the previous behaviour (no limit on the number of kernel dumps 458 stored in the dump directory) add the following line to /etc/rc.conf: 459 460 savecore_flags="" 461 46220121201: 463 With the addition of auditdistd(8), a new auditdistd user is now 464 required during installworld. "mergemaster -p" can be used to 465 add the user prior to installworld, as documented in the handbook. 466 46720121117: 468 The sin6_scope_id member variable in struct sockaddr_in6 is now 469 filled by the kernel before passing the structure to the userland via 470 sysctl or routing socket. This means the KAME-specific embedded scope 471 id in sin6_addr.s6_addr[2] is always cleared in userland application. 472 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 473 __FreeBSD_version is bumped to 1000025. 474 47520121105: 476 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 477 This means that the world and kernel will be compiled with clang 478 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 479 and /usr/bin/cpp. To disable this behavior and revert to building 480 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 481 of current may need to bootstrap WITHOUT_CLANG first if the clang 482 build fails (its compatibility window doesn't extend to the 9 stable 483 branch point). 484 48520121102: 486 The IPFIREWALL_FORWARD kernel option has been removed. Its 487 functionality now turned on by default. 488 48920121023: 490 The ZERO_COPY_SOCKET kernel option has been removed and 491 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 492 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 493 mechanism which is not safe and may result in kernel crashes. 494 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 495 driver supports disposeable external page sized mbuf storage. 496 Proper replacements for both zero-copy mechanisms are under 497 consideration and will eventually lead to complete removal 498 of the two kernel options. 499 50020121023: 501 The IPv4 network stack has been converted to network byte 502 order. The following modules need to be recompiled together 503 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 504 pf(4), ipfw(4), ng_ipfw(4), stf(4). 505 50620121022: 507 Support for non-MPSAFE filesystems was removed from VFS. The 508 VFS_VERSION was bumped, all filesystem modules shall be 509 recompiled. 510 51120121018: 512 All the non-MPSAFE filesystems have been disconnected from 513 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 514 portalfs, smbfs, xfs. 515 51620121016: 517 The interface cloning API and ABI has changed. The following 518 modules need to be recompiled together with kernel: 519 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 520 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 521 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 522 52320121015: 524 The sdhci driver was split in two parts: sdhci (generic SD Host 525 Controller logic) and sdhci_pci (actual hardware driver). 526 No kernel config modifications are required, but if you 527 load sdhc as a module you must switch to sdhci_pci instead. 528 52920121014: 530 Import the FUSE kernel and userland support into base system. 531 53220121013: 533 The GNU sort(1) program has been removed since the BSD-licensed 534 sort(1) has been the default for quite some time and no serious 535 problems have been reported. The corresponding WITH_GNU_SORT 536 knob has also gone. 537 53820121006: 539 The pfil(9) API/ABI for AF_INET family has been changed. Packet 540 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 541 with new kernel. 542 54320121001: 544 The net80211(4) ABI has been changed to allow for improved driver 545 PS-POLL and power-save support. All wireless drivers need to be 546 recompiled to work with the new kernel. 547 54820120913: 549 The random(4) support for the VIA hardware random number 550 generator (`PADLOCK') is no longer enabled unconditionally. 551 Add the padlock_rng device in the custom kernel config if 552 needed. The GENERIC kernels on i386 and amd64 do include the 553 device, so the change only affects the custom kernel 554 configurations. 555 55620120908: 557 The pf(4) packet filter ABI has been changed. pfctl(8) and 558 snmp_pf module need to be recompiled to work with new kernel. 559 56020120828: 561 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 562 to -HEAD. Pools that have empty_bpobj in active state can not be 563 imported read-write with ZFS implementations that do not support 564 this feature. For more information read the zpool-features(5) 565 manual page. 566 56720120727: 568 The sparc64 ZFS loader has been changed to no longer try to auto- 569 detect ZFS providers based on diskN aliases but now requires these 570 to be explicitly listed in the OFW boot-device environment variable. 571 57220120712: 573 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 574 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 575 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 576 57720120712: 578 The following sysctls and tunables have been renamed for consistency 579 with other variables: 580 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 581 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 582 58320120628: 584 The sort utility has been replaced with BSD sort. For now, GNU sort 585 is also available as "gnusort" or the default can be set back to 586 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 587 installed as "bsdsort". 588 58920120611: 590 A new version of ZFS (pool version 5000) has been merged to -HEAD. 591 Starting with this version the old system of ZFS pool versioning 592 is superseded by "feature flags". This concept enables forward 593 compatibility against certain future changes in functionality of ZFS 594 pools. The first read-only compatible "feature flag" for ZFS pools 595 is named "com.delphix:async_destroy". For more information 596 read the new zpool-features(5) manual page. 597 Please refer to the "ZFS notes" section of this file for information 598 on upgrading boot ZFS pools. 599 60020120417: 601 The malloc(3) implementation embedded in libc now uses sources imported 602 as contrib/jemalloc. The most disruptive API change is to 603 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 604 delete it prior to installworld, and optionally re-create it using the 605 new format after rebooting. See malloc.conf(5) for details 606 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 607 NAMESPACE section). 608 60920120328: 610 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 611 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 612 now spelled mips. This is to aid compatibility with third-party 613 software that expects this naming scheme in uname(3). Little-endian 614 settings are unchanged. If you are updating a big-endian mips64 machine 615 from before this change, you may need to set MACHINE_ARCH=mips64 in 616 your environment before the new build system will recognize your machine. 617 61820120306: 619 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 620 platforms. 621 62220120229: 623 Now unix domain sockets behave "as expected" on nullfs(5). Previously 624 nullfs(5) did not pass through all behaviours to the underlying layer, 625 as a result if we bound to a socket on the lower layer we could connect 626 only to the lower path; if we bound to the upper layer we could connect 627 only to the upper path. The new behavior is one can connect to both the 628 lower and the upper paths regardless what layer path one binds to. 629 63020120211: 631 The getifaddrs upgrade path broken with 20111215 has been restored. 632 If you have upgraded in between 20111215 and 20120209 you need to 633 recompile libc again with your kernel. You still need to recompile 634 world to be able to configure CARP but this restriction already 635 comes from 20111215. 636 63720120114: 638 The set_rcvar() function has been removed from /etc/rc.subr. All 639 base and ports rc.d scripts have been updated, so if you have a 640 port installed with a script in /usr/local/etc/rc.d you can either 641 hand-edit the rcvar= line, or reinstall the port. 642 643 An easy way to handle the mass-update of /etc/rc.d: 644 rm /etc/rc.d/* && mergemaster -i 645 64620120109: 647 panic(9) now stops other CPUs in the SMP systems, disables interrupts 648 on the current CPU and prevents other threads from running. 649 This behavior can be reverted using the kern.stop_scheduler_on_panic 650 tunable/sysctl. 651 The new behavior can be incompatible with kern.sync_on_panic. 652 65320111215: 654 The carp(4) facility has been changed significantly. Configuration 655 of the CARP protocol via ifconfig(8) has changed, as well as format 656 of CARP events submitted to devd(8) has changed. See manual pages 657 for more information. The arpbalance feature of carp(4) is currently 658 not supported anymore. 659 660 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 661 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 662 need to be recompiled. 663 66420111122: 665 The acpi_wmi(4) status device /dev/wmistat has been renamed to 666 /dev/wmistat0. 667 66820111108: 669 The option VFS_ALLOW_NONMPSAFE option has been added in order to 670 explicitely support non-MPSAFE filesystems. 671 It is on by default for all supported platform at this present 672 time. 673 67420111101: 675 The broken amd(4) driver has been replaced with esp(4) in the amd64, 676 i386 and pc98 GENERIC kernel configuration files. 677 67820110930: 679 sysinstall has been removed 680 68120110923: 682 The stable/9 branch created in subversion. This corresponds to the 683 RELENG_9 branch in CVS. 684 68520110913: 686 This commit modifies vfs_register() so that it uses a hash 687 calculation to set vfc_typenum, which is enabled by default. 688 The first time a system is booted after this change, the 689 vfc_typenum values will change for all file systems. The 690 main effect of this is a change to the NFS server file handles 691 for file systems that use vfc_typenum in their fsid, such as ZFS. 692 It will, however, prevent vfc_typenum from changing when file 693 systems are loaded in a different order for subsequent reboots. 694 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 695 until you are ready to remount all NFS clients after a reboot. 696 69720110828: 698 Bump the shared library version numbers for libraries that 699 do not use symbol versioning, have changed the ABI compared 700 to stable/8 and which shared library version was not bumped. 701 Done as part of 9.0-RELEASE cycle. 702 70320110815: 704 During the merge of Capsicum features, the fget(9) KPI was modified. 705 This may require the rebuilding of out-of-tree device drivers -- 706 issues have been reported specifically with the nVidia device driver. 707 __FreeBSD_version is bumped to 900041. 708 709 Also, there is a period between 20110811 and 20110814 where the 710 special devices /dev/{stdin,stdout,stderr} did not work correctly. 711 Building world from a kernel during that window may not work. 712 71320110628: 714 The packet filter (pf) code has been updated to OpenBSD 4.5. 715 You need to update userland tools to be in sync with kernel. 716 This update breaks backward compatibility with earlier pfsync(4) 717 versions. Care must be taken when updating redundant firewall setups. 718 71920110608: 720 The following sysctls and tunables are retired on x86 platforms: 721 machdep.hlt_cpus 722 machdep.hlt_logical_cpus 723 The following sysctl is retired: 724 machdep.hyperthreading_allowed 725 The sysctls were supposed to provide a way to dynamically offline and 726 online selected CPUs on x86 platforms, but the implementation has not 727 been reliable especially with SCHED_ULE scheduler. 728 machdep.hyperthreading_allowed tunable is still available to ignore 729 hyperthreading CPUs at OS level. 730 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 731 where X is an APIC ID of a CPU. Be advised, though, that disabling 732 CPUs in non-uniform fashion will result in non-uniform topology and 733 may lead to sub-optimal system performance with SCHED_ULE, which is 734 a default scheduler. 735 73620110607: 737 cpumask_t type is retired and cpuset_t is used in order to describe 738 a mask of CPUs. 739 74020110531: 741 Changes to ifconfig(8) for dynamic address family detection mandate 742 that you are running a kernel of 20110525 or later. Make sure to 743 follow the update procedure to boot a new kernel before installing 744 world. 745 74620110513: 747 Support for sun4v architecture is officially dropped 748 74920110503: 750 Several KPI breaking changes have been committed to the mii(4) layer, 751 the PHY drivers and consequently some Ethernet drivers using mii(4). 752 This means that miibus.ko and the modules of the affected Ethernet 753 drivers need to be recompiled. 754 755 Note to kernel developers: Given that the OUI bit reversion problem 756 was fixed as part of these changes all mii(4) commits related to OUIs, 757 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 758 handling, no longer can be merged verbatim to stable/8 and previous 759 branches. 760 76120110430: 762 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 763 into their kernel configurations along with 'device pci'. 764 76520110427: 766 The default NFS client is now the new NFS client, so fstype "newnfs" 767 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 768 Although mounts via fstype "nfs" will usually work without userland 769 changes, it is recommended that the mount(8) and mount_nfs(8) 770 commands be rebuilt from sources and that a link to mount_nfs called 771 mount_oldnfs be created. The new client is compiled into the 772 kernel with "options NFSCL" and this is needed for diskless root 773 file systems. The GENERIC kernel configs have been changed to use 774 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 775 To use the regular/old client, you can "mount -t oldnfs ...". For 776 a diskless root file system, you must also include a line like: 777 778 vfs.root.mountfrom="oldnfs:" 779 780 in the boot/loader.conf on the root fs on the NFS server to make 781 a diskless root fs use the old client. 782 78320110424: 784 The GENERIC kernels for all architectures now default to the new 785 CAM-based ATA stack. It means that all legacy ATA drivers were 786 removed and replaced by respective CAM drivers. If you are using 787 ATA device names in /etc/fstab or other places, make sure to update 788 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 789 where 'Y's are the sequential numbers starting from zero for each type 790 in order of detection, unless configured otherwise with tunables, 791 see cam(4)). There will be symbolic links created in /dev/ to map 792 old adX devices to the respective adaY. They should provide basic 793 compatibility for file systems mounting in most cases, but they do 794 not support old user-level APIs and do not have respective providers 795 in GEOM. Consider using updated management tools with new device names. 796 797 It is possible to load devices ahci, ata, siis and mvs as modules, 798 but option ATA_CAM should remain in kernel configuration to make ata 799 module work as CAM driver supporting legacy ATA controllers. Device ata 800 still can be used in modular fashion (atacore + ...). Modules atadisk 801 and atapi* are not used and won't affect operation in ATA_CAM mode. 802 Note that to use CAM-based ATA kernel should include CAM devices 803 scbus, pass, da (or explicitly ada), cd and optionally others. All of 804 them are parts of the cam module. 805 806 ataraid(4) functionality is now supported by the RAID GEOM class. 807 To use it you can load geom_raid kernel module and use graid(8) tool 808 for management. Instead of /dev/arX device names, use /dev/raid/rX. 809 810 No kernel config options or code have been removed, so if a problem 811 arises, please report it and optionally revert to the old ATA stack. 812 In order to do it you can remove from the kernel config: 813 options ATA_CAM 814 device ahci 815 device mvs 816 device siis 817 , and instead add back: 818 device atadisk # ATA disk drives 819 device ataraid # ATA RAID drives 820 device atapicd # ATAPI CDROM drives 821 device atapifd # ATAPI floppy drives 822 device atapist # ATAPI tape drives 823 82420110423: 825 The default NFS server has been changed to the new server, which 826 was referred to as the experimental server. If you need to switch 827 back to the old NFS server, you must now put the "-o" option on 828 both the mountd and nfsd commands. This can be done using the 829 mountd_flags and nfs_server_flags rc.conf variables until an 830 update to the rc scripts is committed, which is coming soon. 831 83220110418: 833 The GNU Objective-C runtime library (libobjc), and other Objective-C 834 related components have been removed from the base system. If you 835 require an Objective-C library, please use one of the available ports. 836 83720110331: 838 ath(4) has been split into bus- and device- modules. if_ath contains 839 the HAL, the TX rate control and the network device code. if_ath_pci 840 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 841 contains the AHB glue. Users need to load both if_ath_pci and if_ath 842 in order to use ath on everything else. 843 844 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 845 need to load if_ath and if_ath_pci for ath(4) operation. 846 84720110314: 848 As part of the replacement of sysinstall, the process of building 849 release media has changed significantly. For details, please re-read 850 release(7), which has been updated to reflect the new build process. 851 85220110218: 853 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 854 is the last available version under GPLv2. It brings a number of new 855 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 856 4.1 and SSE 4.2), better support for powerpc64, a number of new 857 directives, and lots of other small improvements. See the ChangeLog 858 file in contrib/binutils for the full details. 859 86020110218: 861 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 862 compliant, and will now use half of hash for authentication. 863 This will break interoperability with all stacks (including all 864 actual FreeBSD versions) who implement 865 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 866 authentication). 867 The only workaround with such peers is to use another HMAC 868 algorithm for IPsec ("phase 2") authentication. 869 87020110207: 871 Remove the uio_yield prototype and symbol. This function has 872 been misnamed since it was introduced and should not be 873 globally exposed with this name. The equivalent functionality 874 is now available using kern_yield(curthread->td_user_pri). 875 The function remains undocumented. 876 87720110112: 878 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 879 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 880 for scalar sysctls is defined but disabled. Code that needs 881 UQUAD to pass the type checking that must compile on older 882 systems where the define is not present can check against 883 __FreeBSD_version >= 900030. 884 885 The system dialog(1) has been replaced with a new version previously 886 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 887 with the previous version, but the libdialog associated with it has 888 a largely incompatible API. As such, the original version of libdialog 889 will be kept temporarily as libodialog, until its base system consumers 890 are replaced or updated. Bump __FreeBSD_version to 900030. 891 89220110103: 893 If you are trying to run make universe on a -stable system, and you get 894 the following warning: 895 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 896 unknown. config(8) likely too old." 897 or something similar to it, then you must upgrade your -stable system 898 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 899 stable/8) or build the config from the latest stable/8 branch and 900 install it on your system. 901 902 Prior to this date, building a current universe on 8-stable system from 903 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 904 error in the first kernel build phase. A new config on those old 905 systems will fix that problem for older versions of -current. 906 90720101228: 908 The TCP stack has been modified to allow Khelp modules to interact with 909 it via helper hook points and store per-connection data in the TCP 910 control block. Bump __FreeBSD_version to 900029. User space tools that 911 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 912 be recompiled. 913 91420101114: 915 Generic IEEE 802.3 annex 31B full duplex flow control support has been 916 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 917 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 918 to take advantage of it instead of using custom implementations. This 919 means that these drivers now no longer unconditionally advertise 920 support for flow control but only do so if flow control is a selected 921 media option. This was implemented in the generic support that way in 922 order to allow flow control to be switched on and off via ifconfig(8) 923 with the PHY specific default to typically off in order to protect 924 from unwanted effects. Consequently, if you used flow control with 925 one of the above mentioned drivers you now need to explicitly enable 926 it, for example via: 927 ifconfig bge0 media auto mediaopt flowcontrol 928 929 Along with the above mentioned changes generic support for setting 930 1000baseT master mode also has been added and brgphy(4), ciphy(4), 931 e1000phy(4) as well as ip1000phy(4) have been converted to take 932 advantage of it. This means that these drivers now no longer take the 933 link0 parameter for selecting master mode but the master media option 934 has to be used instead, for example like in the following: 935 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 936 937 Selection of master mode now is also available with all other PHY 938 drivers supporting 1000baseT. 939 94020101111: 941 The TCP stack has received a significant update to add support for 942 modularised congestion control and generally improve the clarity of 943 congestion control decisions. Bump __FreeBSD_version to 900025. User 944 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 945 sockstat) need to be recompiled. 946 94720101002: 948 The man(1) utility has been replaced by a new version that no longer 949 uses /etc/manpath.config. Please consult man.conf(5) for how to 950 migrate local entries to the new format. 951 95220100928: 953 The copyright strings printed by login(1) and sshd(8) at the time of a 954 new connection have been removed to follow other operating systems and 955 upstream sshd. 956 95720100915: 958 A workaround for a fixed ld bug has been removed in kernel code, 959 so make sure that your system ld is built from sources after 960 revision 210245 from 2010-07-19 (r211583 if building head kernel 961 on stable/8, r211584 for stable/7; both from 2010-08-21). 962 A symptom of incorrect ld version is different addresses for 963 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 964 96520100913: 966 The $ipv6_prefer variable in rc.conf(5) has been split into 967 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 968 969 The $ip6addrctl_policy is a variable to choose a pre-defined 970 address selection policy set by ip6addrctl(8). A value 971 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 972 default is "AUTO". 973 974 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 975 flag (see an entry of 20090926) is set on an interface with no 976 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 977 security reason. If you want IPv6 link-local address on all 978 interfaces by default, set this to "YES". 979 980 The old ipv6_prefer="YES" is equivalent to 981 ipv6_activate_all_interfaces="YES" and 982 ip6addrctl_policy="ipv6_prefer". 983 98420100913: 985 DTrace has grown support for userland tracing. Due to this, DTrace is 986 now i386 and amd64 only. 987 dtruss(1) is now installed by default on those systems and a new 988 kernel module is needed for userland tracing: fasttrap. 989 No changes to your kernel config file are necessary to enable 990 userland tracing, but you might consider adding 'STRIP=' and 991 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 992 to have informative userland stack traces in DTrace (ustack). 993 99420100725: 995 The acpi_aiboost(4) driver has been removed in favor of the new 996 aibs(4) driver. You should update your kernel configuration file. 997 99820100722: 999 BSD grep has been imported to the base system and it is built by 1000 default. It is completely BSD licensed, highly GNU-compatible, uses 1001 less memory than its GNU counterpart and has a small codebase. 1002 However, it is slower than its GNU counterpart, which is mostly 1003 noticeable for larger searches, for smaller ones it is measurable 1004 but not significant. The reason is complex, the most important factor 1005 is that we lack a modern and efficient regex library and GNU 1006 overcomes this by optimizing the searches internally. Future work 1007 on improving the regex performance is planned, for the meantime, 1008 users that need better performance, can build GNU grep instead by 1009 setting the WITH_GNU_GREP knob. 1010 101120100713: 1012 Due to the import of powerpc64 support, all existing powerpc kernel 1013 configuration files must be updated with a machine directive like this: 1014 machine powerpc powerpc 1015 1016 In addition, an updated config(8) is required to build powerpc kernels 1017 after this change. 1018 101920100713: 1020 A new version of ZFS (version 15) has been merged to -HEAD. 1021 This version uses a python library for the following subcommands: 1022 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1023 For full functionality of these commands the following port must 1024 be installed: sysutils/py-zfs 1025 102620100429: 1027 'vm_page's are now hashed by physical address to an array of mutexes. 1028 Currently this is only used to serialize access to hold_count. Over 1029 time the page queue mutex will be peeled away. This changes the size 1030 of pmap on every architecture. And requires all callers of vm_page_hold 1031 and vm_page_unhold to be updated. 1032 103320100402: 1034 WITH_CTF can now be specified in src.conf (not recommended, there 1035 are some problems with static executables), make.conf (would also 1036 affect ports which do not use GNU make and do not override the 1037 compile targets) or in the kernel config (via "makeoptions 1038 WITH_CTF=yes"). 1039 When WITH_CTF was specified there before this was silently ignored, 1040 so make sure that WITH_CTF is not used in places which could lead 1041 to unwanted behavior. 1042 104320100311: 1044 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1045 to allow 32-bit compatibility on non-x86 platforms. All kernel 1046 configurations on amd64 and ia64 platforms using these options must 1047 be modified accordingly. 1048 104920100113: 1050 The utmp user accounting database has been replaced with utmpx, 1051 the user accounting interface standardized by POSIX. 1052 Unfortunately the semantics of utmp and utmpx don't match, 1053 making it practically impossible to support both interfaces. 1054 The user accounting database is used by tools like finger(1), 1055 last(1), talk(1), w(1) and ac(8). 1056 1057 All applications in the base system use utmpx. This means only 1058 local binaries (e.g. from the ports tree) may still use these 1059 utmp database files. These applications must be rebuilt to make 1060 use of utmpx. 1061 1062 After the system has been upgraded, it is safe to remove the old 1063 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1064 assuming their contents is of no importance anymore. Old wtmp 1065 databases can only be used by last(1) and ac(8) after they have 1066 been converted to the new format using wtmpcvt(1). 1067 106820100108: 1069 Introduce the kernel thread "deadlock resolver" (which can be enabled 1070 via the DEADLKRES option, see NOTES for more details) and the 1071 sleepq_type() function for sleepqueues. 1072 107320091202: 1074 The rc.firewall and rc.firewall6 were unified, and 1075 rc.firewall6 and rc.d/ip6fw were removed. 1076 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1077 variables are obsoleted. Instead, the following new rc 1078 variables are added to rc.d/ipfw: 1079 1080 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1081 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1082 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1083 1084 The meanings correspond to the relevant IPv4 variables. 1085 108620091125: 1087 8.0-RELEASE. 1088 108920091113: 1090 The default terminal emulation for syscons(4) has been changed 1091 from cons25 to xterm on all platforms except pc98. This means 1092 that the /etc/ttys file needs to be updated to ensure correct 1093 operation of applications on the console. 1094 1095 The terminal emulation style can be toggled per window by using 1096 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1097 options can be used to change the compile-time default back to 1098 cons25. 1099 1100 To prevent graphical artifacts, make sure the TERM environment 1101 variable is set to match the terminal emulation that is being 1102 performed by syscons(4). 1103 110420091109: 1105 The layout of the structure ieee80211req_scan_result has changed. 1106 Applications that require wireless scan results (e.g. ifconfig(8)) 1107 from net80211 need to be recompiled. 1108 1109 Applications such as wpa_supplicant(8) may require a full world 1110 build without using NO_CLEAN in order to get synchronized with the 1111 new structure. 1112 111320091025: 1114 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1115 There's one kernel module for each firmware. Adding "device iwnfw" 1116 to the kernel configuration file means including all three firmware 1117 images inside the kernel. If you want to include just the one for 1118 your wireless card, use the devices iwn4965fw, iwn5000fw or 1119 iwn5150fw. 1120 112120090926: 1122 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1123 into rc.d/netif. The changes are the following: 1124 1125 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1126 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1127 Note that both variables need the "inet6" keyword at the head. 1128 1129 Do not set $ipv6_network_interfaces manually if you do not 1130 understand what you are doing. It is not needed in most cases. 1131 1132 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1133 they are obsolete. 1134 1135 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1136 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1137 1138 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1139 all configured interfaces have "inet6 accept_rtadv" in the 1140 $ifconfig_IF_ipv6. These are for backward compatibility. 1141 1142 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1143 functionality of interfaces with no corresponding 1144 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1145 and the default address selection policy of ip6addrctl(8) 1146 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1147 Note that if you want to configure IPv6 functionality on the 1148 disabled interfaces after boot, first you need to clear the flag by 1149 using ifconfig(8) like: 1150 1151 ifconfig em0 inet6 -ifdisabled 1152 1153 If YES, the default address selection policy is set as 1154 IPv6-preferred. 1155 1156 The default value of $ipv6_prefer is NO. 1157 1158 4. If your system need to receive Router Advertisement messages, 1159 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1160 scripts automatically invoke rtsol(8) when the interface becomes 1161 UP. The Router Advertisement messages are used for SLAAC 1162 (State-Less Address AutoConfiguration). 1163 116420090922: 1165 802.11s D3.03 support was committed. This is incompatible with the 1166 previous code, which was based on D3.0. 1167 116820090912: 1169 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1170 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1171 control whether accepting Router Advertisement messages or not. 1172 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1173 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1174 The ifconfig(8) utility now supports these flags. 1175 117620090910: 1177 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1178 mount(8) and -a option for df(1) to see them. 1179 118020090825: 1181 The old tunable hw.bus.devctl_disable has been superseded by 1182 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1183 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1184 is 1000. 1185 118620090813: 1187 Remove the option STOP_NMI. The default action is now to use NMI only 1188 for KDB via the newly introduced function stop_cpus_hard() and 1189 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1190 119120090803: 1192 The stable/8 branch created in subversion. This corresponds to the 1193 RELENG_8 branch in CVS. 1194 119520090719: 1196 Bump the shared library version numbers for all libraries that do not 1197 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1198 __FreeBSD_version to 800105. 1199 120020090714: 1201 Due to changes in the implementation of virtual network stack support, 1202 all network-related kernel modules must be recompiled. As this change 1203 breaks the ABI, bump __FreeBSD_version to 800104. 1204 120520090713: 1206 The TOE interface to the TCP syncache has been modified to remove 1207 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1208 The cxgb driver is the only TOE consumer affected by this change, and 1209 needs to be recompiled along with the kernel. As this change breaks 1210 the ABI, bump __FreeBSD_version to 800103. 1211 121220090712: 1213 Padding has been added to struct tcpcb, sackhint and tcpstat in 1214 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1215 maintaining the ABI. However, this change breaks the ABI, so bump 1216 __FreeBSD_version to 800102. User space tools that rely on the size of 1217 any of these structs (e.g. sockstat) need to be recompiled. 1218 121920090630: 1220 The NFS_LEGACYRPC option has been removed along with the old kernel 1221 RPC implementation that this option selected. Kernel configurations 1222 may need to be adjusted. 1223 122420090629: 1225 The network interface device nodes at /dev/net/<interface> have been 1226 removed. All ioctl operations can be performed the normal way using 1227 routing sockets. The kqueue functionality can generally be replaced 1228 with routing sockets. 1229 123020090628: 1231 The documentation from the FreeBSD Documentation Project (Handbook, 1232 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1233 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1234 123520090624: 1236 The ABI of various structures related to the SYSV IPC API have been 1237 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1238 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1239 800100. 1240 124120090622: 1242 Layout of struct vnet has changed as routing related variables were 1243 moved to their own Vimage module. Modules need to be recompiled. Bump 1244 __FreeBSD_version to 800099. 1245 124620090619: 1247 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1248 respectively. As long as no more than 16 groups per process are used, 1249 no changes should be visible. When more than 16 groups are used, old 1250 binaries may fail if they call getgroups() or getgrouplist() with 1251 statically sized storage. Recompiling will work around this, but 1252 applications should be modified to use dynamically allocated storage 1253 for group arrays as POSIX.1-2008 does not cap an implementation's 1254 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1255 1256 NFS and portalfs mounts may also be affected as the list of groups is 1257 truncated to 16. Users of NFS who use more than 16 groups, should 1258 take care that negative group permissions are not used on the exported 1259 file systems as they will not be reliable unless a GSSAPI based 1260 authentication method is used. 1261 126220090616: 1263 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1264 option compiles in the support for adaptive spinning for lockmgrs 1265 which want to enable it. The lockinit() function now accepts the flag 1266 LK_ADAPTIVE in order to make the lock object subject to adaptive 1267 spinning when both held in write and read mode. 1268 126920090613: 1270 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1271 changed. User applications that use this ioctl need to be rebuilt. 1272 127320090611: 1274 The layout of struct thread has changed. Kernel and modules need to 1275 be rebuilt. 1276 127720090608: 1278 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1279 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1280 128120090602: 1282 window(1) has been removed from the base system. It can now be 1283 installed from ports. The port is called misc/window. 1284 128520090601: 1286 The way we are storing and accessing `routing table' entries has 1287 changed. Programs reading the FIB, like netstat, need to be 1288 re-compiled. 1289 129020090601: 1291 A new netisr implementation has been added for FreeBSD 8. Network 1292 file system modules, such as igmp, ipdivert, and others, should be 1293 rebuilt. 1294 Bump __FreeBSD_version to 800096. 1295 129620090530: 1297 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1298 more valid. 1299 130020090530: 1301 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1302 Bump __FreeBSD_version to 800094. 1303 130420090529: 1305 Add mnt_xflag field to 'struct mount'. File system modules need to be 1306 rebuilt. 1307 Bump __FreeBSD_version to 800093. 1308 130920090528: 1310 The compiling option ADAPTIVE_SX has been retired while it has been 1311 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1312 The KPI for sx_init_flags() changes as accepting flags: 1313 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1314 been introduced in order to handle the reversed logic. 1315 Bump __FreeBSD_version to 800092. 1316 131720090527: 1318 Add support for hierarchical jails. Remove global securelevel. 1319 Bump __FreeBSD_version to 800091. 1320 132120090523: 1322 The layout of struct vnet_net has changed, therefore modules 1323 need to be rebuilt. 1324 Bump __FreeBSD_version to 800090. 1325 132620090523: 1327 The newly imported zic(8) produces a new format in the output. Please 1328 run tzsetup(8) to install the newly created data to /etc/localtime. 1329 133020090520: 1331 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1332 hw.usb.* and is now consistent again with previous releases. 1333 133420090520: 1335 802.11 monitor mode support was revised and driver api's were changed. 1336 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1337 of DLT_IEEE802_11. No user-visible data structures were changed but 1338 applications that use DLT_IEEE802_11 may require changes. 1339 Bump __FreeBSD_version to 800088. 1340 134120090430: 1342 The layout of the following structs has changed: sysctl_oid, 1343 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1344 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1345 panics may be experienced. World rebuild is required for 1346 correctly checking networking state from userland. 1347 Bump __FreeBSD_version to 800085. 1348 134920090429: 1350 MLDv2 and Source-Specific Multicast (SSM) have been merged 1351 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1352 The implementation of SSM within FreeBSD's IPv6 stack closely 1353 follows the IPv4 implementation. 1354 1355 For kernel developers: 1356 1357 * The most important changes are that the ip6_output() and 1358 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1359 and this lock has been downgraded to a non-recursive mutex. 1360 1361 * As with the changes to the IPv4 stack to support SSM, filtering 1362 of inbound multicast traffic must now be performed by transport 1363 protocols within the IPv6 stack. This does not apply to TCP and 1364 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1365 1366 * The KPIs used by IPv6 multicast are similar to those used by 1367 the IPv4 stack, with the following differences: 1368 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1369 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1370 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1371 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1372 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1373 for MLDv1 have an additional 'timer' argument which is used to 1374 jitter the initial membership report for the solicited-node 1375 multicast membership on-link. 1376 * This is not strictly needed for MLDv2, which already jitters 1377 its report transmissions. However, the 'timer' argument is 1378 preserved in case MLDv1 is active on the interface. 1379 1380 * The KAME linked-list based IPv6 membership implementation has 1381 been refactored to use a vector similar to that used by the IPv4 1382 stack. 1383 Code which maintains a list of its own multicast memberships 1384 internally, e.g. carp, has been updated to reflect the new 1385 semantics. 1386 1387 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1388 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1389 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1390 implementation constraint which needs to be addressed in HEAD. 1391 1392 For application developers: 1393 1394 * The changes are broadly similar to those made for the IPv4 1395 stack. 1396 1397 * The use of IPv4 and IPv6 multicast socket options on the same 1398 socket, using mapped addresses, HAS NOT been tested or supported. 1399 1400 * There are a number of issues with the implementation of various 1401 IPv6 multicast APIs which need to be resolved in the API surface 1402 before the implementation is fully compatible with KAME userland 1403 use, and these are mostly to do with interface index treatment. 1404 1405 * The literature available discusses the use of either the delta / ASM 1406 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1407 using setsourcefilter(3)/getsourcefilter(3). For more information 1408 please refer to RFC 3768, 'Socket Interface Extensions for 1409 Multicast Source Filters'. 1410 1411 * Applications which use the published RFC 3678 APIs should be fine. 1412 1413 For systems administrators: 1414 1415 * The mtest(8) utility has been refactored to support IPv6, in 1416 addition to IPv4. Interface addresses are no longer accepted 1417 as arguments, their names must be used instead. The utility 1418 will map the interface name to its first IPv4 address as 1419 returned by getifaddrs(3). 1420 1421 * The ifmcstat(8) utility has also been updated to print the MLDv2 1422 endpoint state and source filter lists via sysctl(3). 1423 1424 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1425 loopback of IPv6 multicast datagrams by default; it defaults to 1 1426 to preserve the existing behaviour. Disabling multicast loopback is 1427 recommended for optimal system performance. 1428 1429 * The IPv6 MROUTING code has been changed to examine this sysctl 1430 instead of attempting to perform a group lookup before looping 1431 back forwarded datagrams. 1432 1433 Bump __FreeBSD_version to 800084. 1434 143520090422: 1436 Implement low-level Bluetooth HCI API. 1437 Bump __FreeBSD_version to 800083. 1438 143920090419: 1440 The layout of struct malloc_type, used by modules to register new 1441 memory allocation types, has changed. Most modules will need to 1442 be rebuilt or panics may be experienced. 1443 Bump __FreeBSD_version to 800081. 1444 144520090415: 1446 Anticipate overflowing inp_flags - add inp_flags2. 1447 This changes most offsets in inpcb, so checking v4 connection 1448 state will require a world rebuild. 1449 Bump __FreeBSD_version to 800080. 1450 145120090415: 1452 Add an llentry to struct route and struct route_in6. Modules 1453 embedding a struct route will need to be recompiled. 1454 Bump __FreeBSD_version to 800079. 1455 145620090414: 1457 The size of rt_metrics_lite and by extension rtentry has changed. 1458 Networking administration apps will need to be recompiled. 1459 The route command now supports show as an alias for get, weighting 1460 of routes, sticky and nostick flags to alter the behavior of stateful 1461 load balancing. 1462 Bump __FreeBSD_version to 800078. 1463 146420090408: 1465 Do not use Giant for kbdmux(4) locking. This is wrong and 1466 apparently causing more problems than it solves. This will 1467 re-open the issue where interrupt handlers may race with 1468 kbdmux(4) in polling mode. Typical symptoms include (but 1469 not limited to) duplicated and/or missing characters when 1470 low level console functions (such as gets) are used while 1471 interrupts are enabled (for example geli password prompt, 1472 mountroot prompt etc.). Disabling kbdmux(4) may help. 1473 147420090407: 1475 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1476 kernel modules referencing any of the above need to be recompiled. 1477 Bump __FreeBSD_version to 800075. 1478 147920090320: 1480 GEOM_PART has become the default partition slicer for storage devices, 1481 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1482 introduces some changes: 1483 1484 MSDOS/EBR: the devices created from MSDOS extended partition entries 1485 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1486 to devices with offset-based names. fstabs may need to be modified. 1487 1488 BSD: the "geometry does not match label" warning is harmless in most 1489 cases but it points to problems in file system misalignment with 1490 disk geometry. The "c" partition is now implicit, covers the whole 1491 top-level drive and cannot be (mis)used by users. 1492 1493 General: Kernel dumps are now not allowed to be written to devices 1494 whose partition types indicate they are meant to be used for file 1495 systems (or, in case of MSDOS partitions, as something else than 1496 the "386BSD" type). 1497 1498 Most of these changes date approximately from 200812. 1499 150020090319: 1501 The uscanner(4) driver has been removed from the kernel. This follows 1502 Linux removing theirs in 2.6 and making libusb the default interface 1503 (supported by sane). 1504 150520090319: 1506 The multicast forwarding code has been cleaned up. netstat(1) 1507 only relies on KVM now for printing bandwidth upcall meters. 1508 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1509 ip6_mroute_mod respectively. The config(5) options for statically 1510 compiling this code remain the same, i.e. 'options MROUTING'. 1511 151220090315: 1513 Support for the IFF_NEEDSGIANT network interface flag has been 1514 removed, which means that non-MPSAFE network device drivers are no 1515 longer supported. In particular, if_ar, if_sr, and network device 1516 drivers from the old (legacy) USB stack can no longer be built or 1517 used. 1518 151920090313: 1520 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1521 a bunch of new language catalog files have also been added. 1522 This means that some common libc messages are now localized and 1523 they depend on the LC_MESSAGES environmental variable. 1524 152520090313: 1526 The k8temp(4) driver has been renamed to amdtemp(4) since 1527 support for Family 10 and Family 11 CPU families was added. 1528 152920090309: 1530 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1531 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1532 1533 For kernel developers, the most important changes are that the 1534 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1535 and this lock has been downgraded to a non-recursive mutex. 1536 1537 Transport protocols (UDP, Raw IP) are now responsible for filtering 1538 inbound multicast traffic according to group membership and source 1539 filters. The imo_multicast_filter() KPI exists for this purpose. 1540 Transports which do not use multicast (SCTP, TCP) already reject 1541 multicast by default. Forwarding and receive performance may improve 1542 as a mutex acquisition is no longer needed in the ip_input() 1543 low-level input path. in_addmulti() and in_delmulti() are shimmed 1544 to new KPIs which exist to support SSM in-kernel. 1545 1546 For application developers, it is recommended that loopback of 1547 multicast datagrams be disabled for best performance, as this 1548 will still cause the lock to be taken for each looped-back 1549 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1550 be tuned to 0 to disable loopback by default; it defaults to 1 1551 to preserve the existing behaviour. 1552 1553 For systems administrators, to obtain best performance with 1554 multicast reception and multiple groups, it is always recommended 1555 that a card with a suitably precise hash filter is used. Hash 1556 collisions will still result in the lock being taken within the 1557 transport protocol input path to check group membership. 1558 1559 If deploying FreeBSD in an environment with IGMP snooping switches, 1560 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1561 enabled; this forces 224.0.0.0/24 group membership to be announced 1562 via IGMP. 1563 1564 The size of 'struct igmpstat' has changed; netstat needs to be 1565 recompiled to reflect this. 1566 Bump __FreeBSD_version to 800070. 1567 156820090309: 1569 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1570 updated to use it. This requires a buildworld/installworld in order to 1571 update the library and dependencies (usbconfig, etc). Its advisable to 1572 rebuild all ports which uses libusb. More specific directions are given 1573 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1574 libusb are no longer required and can be removed. 1575 157620090302: 1577 A workaround is committed to allow the creation of System V shared 1578 memory segment of size > 2 GB on the 64-bit architectures. 1579 Due to a limitation of the existing ABI, the shm_segsz member 1580 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1581 wrong for large segments. Note that limits must be explicitly 1582 raised to allow such segments to be created. 1583 158420090301: 1585 The layout of struct ifnet has changed, requiring a rebuild of all 1586 network device driver modules. 1587 158820090227: 1589 The /dev handling for the new USB stack has changed, a 1590 buildworld/installworld is required for libusb20. 1591 159220090223: 1593 The new USB2 stack has now been permanently moved in and all kernel and 1594 module names reverted to their previous values (eg, usb, ehci, ohci, 1595 ums, ...). The old usb stack can be compiled in by prefixing the name 1596 with the letter 'o', the old usb modules have been removed. 1597 Updating entry 20090216 for xorg and 20090215 for libmap may still 1598 apply. 1599 160020090217: 1601 The rc.conf(5) option if_up_delay has been renamed to 1602 defaultroute_delay to better reflect its purpose. If you have 1603 customized this setting in /etc/rc.conf you need to update it to 1604 use the new name. 1605 160620090216: 1607 xorg 7.4 wants to configure its input devices via hald which does not 1608 yet work with USB2. If the keyboard/mouse does not work in xorg then 1609 add 1610 Option "AllowEmptyInput" "off" 1611 to your ServerLayout section. This will cause X to use the configured 1612 kbd and mouse sections from your xorg.conf. 1613 161420090215: 1615 The GENERIC kernels for all architectures now default to the new USB2 1616 stack. No kernel config options or code have been removed so if a 1617 problem arises please report it and optionally revert to the old USB 1618 stack. If you are loading USB kernel modules or have a custom kernel 1619 that includes GENERIC then ensure that usb names are also changed over, 1620 eg uftdi -> usb2_serial_ftdi. 1621 1622 Older programs linked against the ports libusb 0.1 need to be 1623 redirected to the new stack's libusb20. /etc/libmap.conf can 1624 be used for this: 1625 # Map old usb library to new one for usb2 stack 1626 libusb-0.1.so.8 libusb20.so.1 1627 162820090209: 1629 All USB ethernet devices now attach as interfaces under the name ueN 1630 (eg. ue0). This is to provide a predictable name as vendors often 1631 change usb chipsets in a product without notice. 1632 163320090203: 1634 The ichsmb(4) driver has been changed to require SMBus slave 1635 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1636 All of the other SMBus controller drivers require left-justified 1637 slave addresses, so this change makes all the drivers provide the 1638 same interface. 1639 164020090201: 1641 INET6 statistics (struct ip6stat) was updated. 1642 netstat(1) needs to be recompiled. 1643 164420090119: 1645 NTFS has been removed from GENERIC kernel on amd64 to match 1646 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1647 will load ntfs.ko module automatically when NTFS support is 1648 actually needed, unless ntfs.ko is not installed or security 1649 level prohibits loading kernel modules. If either is the case, 1650 "options NTFS" has to be added into kernel config. 1651 165220090115: 1653 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1654 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1655 800061. User space tools that rely on the size of struct tcpcb in 1656 tcp_var.h (e.g. sockstat) need to be recompiled. 1657 165820081225: 1659 ng_tty(4) module updated to match the new TTY subsystem. 1660 Due to API change, user-level applications must be updated. 1661 New API support added to mpd5 CVS and expected to be present 1662 in next mpd5.3 release. 1663 166420081219: 1665 With __FreeBSD_version 800060 the makefs tool is part of 1666 the base system (it was a port). 1667 166820081216: 1669 The afdata and ifnet locks have been changed from mutexes to 1670 rwlocks, network modules will need to be re-compiled. 1671 167220081214: 1673 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1674 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1675 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1676 architecture and 40 bytes on 64-bit architecture. The userland 1677 applications "arp" and "ndp" have been updated accordingly. 1678 The output from "netstat -r" shows only routing entries and 1679 none of the L2 information. 1680 168120081130: 1682 __FreeBSD_version 800057 marks the switchover from the 1683 binary ath hal to source code. Users must add the line: 1684 1685 options AH_SUPPORT_AR5416 1686 1687 to their kernel config files when specifying: 1688 1689 device ath_hal 1690 1691 The ath_hal module no longer exists; the code is now compiled 1692 together with the driver in the ath module. It is now 1693 possible to tailor chip support (i.e. reduce the set of chips 1694 and thereby the code size); consult ath_hal(4) for details. 1695 169620081121: 1697 __FreeBSD_version 800054 adds memory barriers to 1698 <machine/atomic.h>, new interfaces to ifnet to facilitate 1699 multiple hardware transmit queues for cards that support 1700 them, and a lock-less ring-buffer implementation to 1701 enable drivers to more efficiently manage queueing of 1702 packets. 1703 170420081117: 1705 A new version of ZFS (version 13) has been merged to -HEAD. 1706 This version has zpool attribute "listsnapshots" off by 1707 default, which means "zfs list" does not show snapshots, 1708 and is the same as Solaris behavior. 1709 171020081028: 1711 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1712 171320081009: 1714 The uhci, ohci, ehci and slhci USB Host controller drivers have 1715 been put into separate modules. If you load the usb module 1716 separately through loader.conf you will need to load the 1717 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1718 controller add the following to loader.conf: 1719 1720 uhci_load="YES" 1721 ehci_load="YES" 1722 172320081009: 1724 The ABI used by the PMC toolset has changed. Please keep 1725 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1726 sync. 1727 172820081009: 1729 atapci kernel module now includes only generic PCI ATA 1730 driver. AHCI driver moved to ataahci kernel module. 1731 All vendor-specific code moved into separate kernel modules: 1732 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1733 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1734 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1735 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1736 173720080820: 1738 The TTY subsystem of the kernel has been replaced by a new 1739 implementation, which provides better scalability and an 1740 improved driver model. Most common drivers have been migrated to 1741 the new TTY subsystem, while others have not. The following 1742 drivers have not yet been ported to the new TTY layer: 1743 1744 PCI/ISA: 1745 cy, digi, rc, rp, sio 1746 1747 USB: 1748 ubser, ucycom 1749 1750 Line disciplines: 1751 ng_h4, ng_tty, ppp, sl, snp 1752 1753 Adding these drivers to your kernel configuration file shall 1754 cause compilation to fail. 1755 175620080818: 1757 ntpd has been upgraded to 4.2.4p5. 1758 175920080801: 1760 OpenSSH has been upgraded to 5.1p1. 1761 1762 For many years, FreeBSD's version of OpenSSH preferred DSA 1763 over RSA for host and user authentication keys. With this 1764 upgrade, we've switched to the vendor's default of RSA over 1765 DSA. This may cause upgraded clients to warn about unknown 1766 host keys even for previously known hosts. Users should 1767 follow the usual procedure for verifying host keys before 1768 accepting the RSA key. 1769 1770 This can be circumvented by setting the "HostKeyAlgorithms" 1771 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1772 command line. 1773 1774 Please note that the sequence of keys offered for 1775 authentication has been changed as well. You may want to 1776 specify IdentityFile in a different order to revert this 1777 behavior. 1778 177920080713: 1780 The sio(4) driver has been removed from the i386 and amd64 1781 kernel configuration files. This means uart(4) is now the 1782 default serial port driver on those platforms as well. 1783 1784 To prevent collisions with the sio(4) driver, the uart(4) driver 1785 uses different names for its device nodes. This means the 1786 onboard serial port will now most likely be called "ttyu0" 1787 instead of "ttyd0". You may need to reconfigure applications to 1788 use the new device names. 1789 1790 When using the serial port as a boot console, be sure to update 1791 /boot/device.hints and /etc/ttys before booting the new kernel. 1792 If you forget to do so, you can still manually specify the hints 1793 at the loader prompt: 1794 1795 set hint.uart.0.at="isa" 1796 set hint.uart.0.port="0x3F8" 1797 set hint.uart.0.flags="0x10" 1798 set hint.uart.0.irq="4" 1799 boot -s 1800 180120080609: 1802 The gpt(8) utility has been removed. Use gpart(8) to partition 1803 disks instead. 1804 180520080603: 1806 The version that Linuxulator emulates was changed from 2.4.2 1807 to 2.6.16. If you experience any problems with Linux binaries 1808 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1809 if it fixes the problem contact emulation mailing list. 1810 181120080525: 1812 ISDN4BSD (I4B) was removed from the src tree. You may need to 1813 update a your kernel configuration and remove relevant entries. 1814 181520080509: 1816 I have checked in code to support multiple routing tables. 1817 See the man pages setfib(1) and setfib(2). 1818 This is a hopefully backwards compatible version, 1819 but to make use of it you need to compile your kernel 1820 with options ROUTETABLES=2 (or more up to 16). 1821 182220080420: 1823 The 802.11 wireless support was redone to enable multi-bss 1824 operation on devices that are capable. The underlying device 1825 is no longer used directly but instead wlanX devices are 1826 cloned with ifconfig. This requires changes to rc.conf files. 1827 For example, change: 1828 ifconfig_ath0="WPA DHCP" 1829 to 1830 wlans_ath0=wlan0 1831 ifconfig_wlan0="WPA DHCP" 1832 see rc.conf(5) for more details. In addition, mergemaster of 1833 /etc/rc.d is highly recommended. Simultaneous update of userland 1834 and kernel wouldn't hurt either. 1835 1836 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1837 modules were merged into the base wlan module. All references 1838 to these modules (e.g. in kernel config files) must be removed. 1839 184020080408: 1841 psm(4) has gained write(2) support in native operation level. 1842 Arbitrary commands can be written to /dev/psm%d and status can 1843 be read back from it. Therefore, an application is responsible 1844 for status validation and error recovery. It is a no-op in 1845 other operation levels. 1846 184720080312: 1848 Support for KSE threading has been removed from the kernel. To 1849 run legacy applications linked against KSE libmap.conf may 1850 be used. The following libmap.conf may be used to ensure 1851 compatibility with any prior release: 1852 1853 libpthread.so.1 libthr.so.1 1854 libpthread.so.2 libthr.so.2 1855 libkse.so.3 libthr.so.3 1856 185720080301: 1858 The layout of struct vmspace has changed. This affects libkvm 1859 and any executables that link against libkvm and use the 1860 kvm_getprocs() function. In particular, but not exclusively, 1861 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1862 The effects are minimal, but it's advisable to upgrade world 1863 nonetheless. 1864 186520080229: 1866 The latest em driver no longer has support in it for the 1867 82575 adapter, this is now moved to the igb driver. The 1868 split was done to make new features that are incompatible 1869 with older hardware easier to do. 1870 187120080220: 1872 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1873 likewise the kernel option is now GEOM_LINUX_LVM. 1874 187520080211: 1876 The default NFS mount mode has changed from UDP to TCP for 1877 increased reliability. If you rely on (insecurely) NFS 1878 mounting across a firewall you may need to update your 1879 firewall rules. 1880 188120080208: 1882 Belatedly note the addition of m_collapse for compacting 1883 mbuf chains. 1884 188520080126: 1886 The fts(3) structures have been changed to use adequate 1887 integer types for their members and so to be able to cope 1888 with huge file trees. The old fts(3) ABI is preserved 1889 through symbol versioning in libc, so third-party binaries 1890 using fts(3) should still work, although they will not take 1891 advantage of the extended types. At the same time, some 1892 third-party software might fail to build after this change 1893 due to unportable assumptions made in its source code about 1894 fts(3) structure members. Such software should be fixed 1895 by its vendor or, in the worst case, in the ports tree. 1896 FreeBSD_version 800015 marks this change for the unlikely 1897 case that a portable fix is impossible. 1898 189920080123: 1900 To upgrade to -current after this date, you must be running 1901 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1902 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1903 190420071128: 1905 The ADAPTIVE_GIANT kernel option has been retired because its 1906 functionality is the default now. 1907 190820071118: 1909 The AT keyboard emulation of sunkbd(4) has been turned on 1910 by default. In order to make the special symbols of the Sun 1911 keyboards driven by sunkbd(4) work under X these now have 1912 to be configured the same way as Sun USB keyboards driven 1913 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1914 1915 Option "XkbLayout" "us" 1916 Option "XkbRules" "xorg" 1917 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1918 191920071024: 1920 It has been decided that it is desirable to provide ABI 1921 backwards compatibility to the FreeBSD 4/5/6 versions of the 1922 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1923 broken with the introduction of PCI domain support (see the 1924 20070930 entry). Unfortunately, this required the ABI of 1925 PCIOCGETCONF to be broken again in order to be able to 1926 provide backwards compatibility to the old version of that 1927 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1928 again. As for prominent ports this affects neither pciutils 1929 nor xorg-server this time, the hal port needs to be rebuilt 1930 however. 1931 193220071020: 1933 The misnamed kthread_create() and friends have been renamed 1934 to kproc_create() etc. Many of the callers already 1935 used kproc_start().. 1936 I will return kthread_create() and friends in a while 1937 with implementations that actually create threads, not procs. 1938 Renaming corresponds with version 800002. 1939 194020071010: 1941 RELENG_7 branched. 1942 1943COMMON ITEMS: 1944 1945 General Notes 1946 ------------- 1947 Avoid using make -j when upgrading. While generally safe, there are 1948 sometimes problems using -j to upgrade. If your upgrade fails with 1949 -j, please try again without -j. From time to time in the past there 1950 have been problems using -j with buildworld and/or installworld. This 1951 is especially true when upgrading between "distant" versions (eg one 1952 that cross a major release boundary or several minor releases, or when 1953 several months have passed on the -current branch). 1954 1955 Sometimes, obscure build problems are the result of environment 1956 poisoning. This can happen because the make utility reads its 1957 environment when searching for values for global variables. To run 1958 your build attempts in an "environmental clean room", prefix all make 1959 commands with 'env -i '. See the env(1) manual page for more details. 1960 1961 When upgrading from one major version to another it is generally best 1962 to upgrade to the latest code in the currently installed branch first, 1963 then do an upgrade to the new branch. This is the best-tested upgrade 1964 path, and has the highest probability of being successful. Please try 1965 this approach before reporting problems with a major version upgrade. 1966 1967 When upgrading a live system, having a root shell around before 1968 installing anything can help undo problems. Not having a root shell 1969 around can lead to problems if pam has changed too much from your 1970 starting point to allow continued authentication after the upgrade. 1971 1972 ZFS notes 1973 --------- 1974 When upgrading the boot ZFS pool to a new version, always follow 1975 these two steps: 1976 1977 1.) recompile and reinstall the ZFS boot loader and boot block 1978 (this is part of "make buildworld" and "make installworld") 1979 1980 2.) update the ZFS boot block on your boot drive 1981 1982 The following example updates the ZFS boot block on the first 1983 partition (freebsd-boot) of a GPT partitioned drive ad0: 1984 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1985 1986 Non-boot pools do not need these updates. 1987 1988 To build a kernel 1989 ----------------- 1990 If you are updating from a prior version of FreeBSD (even one just 1991 a few days old), you should follow this procedure. It is the most 1992 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1993 1994 make kernel-toolchain 1995 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1996 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1997 1998 To test a kernel once 1999 --------------------- 2000 If you just want to boot a kernel once (because you are not sure 2001 if it works, or if you want to boot a known bad kernel to provide 2002 debugging information) run 2003 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2004 nextboot -k testkernel 2005 2006 To just build a kernel when you know that it won't mess you up 2007 -------------------------------------------------------------- 2008 This assumes you are already running a CURRENT system. Replace 2009 ${arch} with the architecture of your machine (e.g. "i386", 2010 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2011 2012 cd src/sys/${arch}/conf 2013 config KERNEL_NAME_HERE 2014 cd ../compile/KERNEL_NAME_HERE 2015 make depend 2016 make 2017 make install 2018 2019 If this fails, go to the "To build a kernel" section. 2020 2021 To rebuild everything and install it on the current system. 2022 ----------------------------------------------------------- 2023 # Note: sometimes if you are running current you gotta do more than 2024 # is listed here if you are upgrading from a really old current. 2025 2026 <make sure you have good level 0 dumps> 2027 make buildworld 2028 make kernel KERNCONF=YOUR_KERNEL_HERE 2029 [1] 2030 <reboot in single user> [3] 2031 mergemaster -p [5] 2032 make installworld 2033 mergemaster -i [4] 2034 make delete-old [6] 2035 <reboot> 2036 2037 To cross-install current onto a separate partition 2038 -------------------------------------------------- 2039 # In this approach we use a separate partition to hold 2040 # current's root, 'usr', and 'var' directories. A partition 2041 # holding "/", "/usr" and "/var" should be about 2GB in 2042 # size. 2043 2044 <make sure you have good level 0 dumps> 2045 <boot into -stable> 2046 make buildworld 2047 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2048 <maybe newfs current's root partition> 2049 <mount current's root partition on directory ${CURRENT_ROOT}> 2050 make installworld DESTDIR=${CURRENT_ROOT} 2051 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2052 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2053 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2054 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2055 <reboot into current> 2056 <do a "native" rebuild/install as described in the previous section> 2057 <maybe install compatibility libraries from ports/misc/compat*> 2058 <reboot> 2059 2060 2061 To upgrade in-place from stable to current 2062 ---------------------------------------------- 2063 <make sure you have good level 0 dumps> 2064 make buildworld [9] 2065 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2066 [1] 2067 <reboot in single user> [3] 2068 mergemaster -p [5] 2069 make installworld 2070 mergemaster -i [4] 2071 make delete-old [6] 2072 <reboot> 2073 2074 Make sure that you've read the UPDATING file to understand the 2075 tweaks to various things you need. At this point in the life 2076 cycle of current, things change often and you are on your own 2077 to cope. The defaults can also change, so please read ALL of 2078 the UPDATING entries. 2079 2080 Also, if you are tracking -current, you must be subscribed to 2081 freebsd-current@freebsd.org. Make sure that before you update 2082 your sources that you have read and understood all the recent 2083 messages there. If in doubt, please track -stable which has 2084 much fewer pitfalls. 2085 2086 [1] If you have third party modules, such as vmware, you 2087 should disable them at this point so they don't crash your 2088 system on reboot. 2089 2090 [3] From the bootblocks, boot -s, and then do 2091 fsck -p 2092 mount -u / 2093 mount -a 2094 cd src 2095 adjkerntz -i # if CMOS is wall time 2096 Also, when doing a major release upgrade, it is required that 2097 you boot into single user mode to do the installworld. 2098 2099 [4] Note: This step is non-optional. Failure to do this step 2100 can result in a significant reduction in the functionality of the 2101 system. Attempting to do it by hand is not recommended and those 2102 that pursue this avenue should read this file carefully, as well 2103 as the archives of freebsd-current and freebsd-hackers mailing lists 2104 for potential gotchas. The -U option is also useful to consider. 2105 See mergemaster(8) for more information. 2106 2107 [5] Usually this step is a noop. However, from time to time 2108 you may need to do this if you get unknown user in the following 2109 step. It never hurts to do it all the time. You may need to 2110 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2111 install) after the buildworld before this step if you last updated 2112 from current before 20130425 or from -stable before 20130430. 2113 2114 [6] This only deletes old files and directories. Old libraries 2115 can be deleted by "make delete-old-libs", but you have to make 2116 sure that no program is using those libraries anymore. 2117 2118 [8] In order to have a kernel that can run the 4.x binaries needed to 2119 do an installworld, you must include the COMPAT_FREEBSD4 option in 2120 your kernel. Failure to do so may leave you with a system that is 2121 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2122 required to run the 5.x binaries on more recent kernels. And so on 2123 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2124 2125 Make sure that you merge any new devices from GENERIC since the 2126 last time you updated your kernel config file. 2127 2128 [9] When checking out sources, you must include the -P flag to have 2129 cvs prune empty directories. 2130 2131 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2132 "?=" instead of the "=" assignment operator, so that buildworld can 2133 override the CPUTYPE if it needs to. 2134 2135 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2136 not on the command line, or in /etc/make.conf. buildworld will 2137 warn if it is improperly defined. 2138FORMAT: 2139 2140This file contains a list, in reverse chronological order, of major 2141breakages in tracking -current. It is not guaranteed to be a complete 2142list of such breakages, and only contains entries since October 10, 2007. 2143If you need to see UPDATING entries from before that date, you will need 2144to fetch an UPDATING file from an older FreeBSD release. 2145 2146Copyright information: 2147 2148Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2149 2150Redistribution, publication, translation and use, with or without 2151modification, in full or in part, in any form or format of this 2152document are permitted without further permission from the author. 2153 2154THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2155IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2156WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2157DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2158INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2159(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2160SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2161HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2162STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2163IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2164POSSIBILITY OF SUCH DAMAGE. 2165 2166Contact Warner Losh if you have any questions about your use of 2167this document. 2168 2169$FreeBSD$ 2170