UPDATING revision 275854
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 1920141217: p2 FreeBSD-SA-14:30.unbound 20 Fix unbound remote denial of service vulnerability. 21 2220141210: p1 FreeBSD-SA-14:27.stdio 23 FreeBSD-SA-14:28.file 24 25 Fix buffer overflow in stdio. [SA-14:27] 26 27 Fix multiple vulnerabilities in file(1) and libmagic(3). 28 [SA-14:28] 29 3020140904: 31 The ofwfb driver, used to provide a graphics console on PowerPC when 32 using vt(4), no longer allows mmap() of all of physical memory. This 33 will prevent Xorg on PowerPC with some ATI graphics cards from 34 initializing properly unless x11-servers/xorg-server is updated to 35 1.12.4_8 or newer. 36 3720140831: 38 The libatf-c and libatf-c++ major versions were downgraded to 0 and 39 1 respectively to match the upstream numbers. They were out of 40 sync because, when they were originally added to FreeBSD, the 41 upstream versions were not respected. These libraries are private 42 and not yet built by default, so renumbering them should be a 43 non-issue. However, unclean source trees will yield broken test 44 programs once the operator executes "make delete-old-libs" after a 45 "make installworld". 46 47 Additionally, the atf-sh binary was made private by moving it into 48 /usr/libexec/. Already-built shell test programs will keep the 49 path to the old binary so they will break after "make delete-old" 50 is run. 51 52 If you are using WITH_TESTS=yes (not the default), wipe the object 53 tree and rebuild from scratch to prevent spurious test failures. 54 This is only needed once: the misnumbered libraries and misplaced 55 binaries have been added to OptionalObsoleteFiles.inc so they will 56 be removed during a clean upgrade. 57 5820140814: 59 The ixgbe tunables now match their sysctl counterparts, for example: 60 hw.ixgbe.enable_aim => hw.ix.enable_aim 61 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 62 6320140801: 64 The NFSv4.1 server committed by r269398 changes the internal 65 function call interfaces used between the NFS and krpc modules. 66 As such, __FreeBSD_version was bumped. 67 6820140729: 69 The default unbound configuration has been modified to address 70 issues with reverse lookups on networks that use private 71 address ranges. If you use the local_unbound service, run 72 "service local_unbound setup" as root to regenerate your 73 configuration, then "service local_unbound reload" to load the 74 new configuration. 75 7620140717: 77 It is no longer necessary to include the dwarf version in your DEBUG 78 options in your kernel config file. The bug that required it to be 79 placed in the config file has bene fixed. DEBUG should now just 80 contain -g. The build system will automatically update things 81 to do the right thing. 82 8320140715: 84 Several ABI breaking changes were merged to CTL and new iSCSI code. 85 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 86 iscsictl need to be rebuilt to work with a new kernel. 87 8820140708: 89 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 90 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 91 which differs from the behaviour controlled by this knob.) 92 9320140608: 94 On i386 and amd64 systems, the onifconsole flag is now set by default 95 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 96 as a login TTY if it is set in the bootloader as an active kernel 97 console. No changes in behavior should result otherwise. To revert to 98 the previous behavior, set ttyu0 to "off" in /etc/ttys. 99 10020140512: 101 Clang and llvm have been upgraded to 3.4.1 release. 102 10320140321: 104 Clang and llvm have been upgraded to 3.4 release. 105 10620140306: 107 If a Makefile in a tests/ directory was auto-generating a Kyuafile 108 instead of providing an explicit one, this would prevent such 109 Makefile from providing its own Kyuafile in the future during 110 NO_CLEAN builds. This has been fixed in the Makefiles but manual 111 intervention is needed to clean an objdir if you use NO_CLEAN: 112 # find /usr/obj -name Kyuafile | xargs rm -f 113 11420140303: 115 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 116 capability mode support. Please note that enabling the feature in 117 kernel is still highly recommended. 118 11920140227: 120 OpenSSH is now built with sandbox support, and will use sandbox as 121 the default privilege separation method. This requires Capsicum 122 capability mode support in kernel. 123 12420140216: 125 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 126 been deprecated and will not be part of FreeBSD 11.0 and later 127 releases. If you use this driver, please consider switching to 128 the nfe(4) driver instead. 129 13020140120: 131 10.0-RELEASE. 132 13320131216: 134 The behavior of gss_pseudo_random() for the krb5 mechanism 135 has changed, for applications requesting a longer random string 136 than produced by the underlying enctype's pseudo-random() function. 137 In particular, the random string produced from a session key of 138 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 139 be different at the 17th octet and later, after this change. 140 The counter used in the PRF+ construction is now encoded as a 141 big-endian integer in accordance with RFC 4402. 142 __FreeBSD_version is bumped to 1000701. 143 14420131108: 145 The WITHOUT_ATF build knob has been removed and its functionality 146 has been subsumed into the more generic WITHOUT_TESTS. If you were 147 using the former to disable the build of the ATF libraries, you 148 should change your settings to use the latter. 149 15020131031: 151 The default version of mtree is nmtree which is obtained from 152 NetBSD. The output is generally the same, but may vary 153 slightly. If you found you need identical output adding 154 "-F freebsd9" to the command line should do the trick. For the 155 time being, the old mtree is available as fmtree. 156 15720131014: 158 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 159 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 160 1.1.4_8 and verify bsdyml not linked in, before running "make 161 delete-old-libs": 162 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 163 or 164 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 165 16620131010: 167 The rc.d/jail script has been updated to support jail(8) 168 configuration file. The "jail_<jname>_*" rc.conf(5) variables 169 for per-jail configuration are automatically converted to 170 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 171 This is transparently backward compatible. See below about some 172 incompatibilities and rc.conf(5) manual page for more details. 173 174 These variables are now deprecated in favor of jail(8) configuration 175 file. One can use "rc.d/jail config <jname>" command to generate 176 a jail(8) configuration file in /var/run/jail.<jname>.conf without 177 running the jail(8) utility. The default pathname of the 178 configuration file is /etc/jail.conf and can be specified by 179 using $jail_conf or $jail_<jname>_conf variables. 180 181 Please note that jail_devfs_ruleset accepts an integer at 182 this moment. Please consider to rewrite the ruleset name 183 with an integer. 184 18520130930: 186 BIND has been removed from the base system. If all you need 187 is a local resolver, simply enable and start the local_unbound 188 service instead. Otherwise, several versions of BIND are 189 available in the ports tree. The dns/bind99 port is one example. 190 191 With this change, nslookup(1) and dig(1) are no longer in the base 192 system. Users should instead use host(1) and drill(1) which are 193 in the base system. Alternatively, nslookup and dig can 194 be obtained by installing the dns/bind-tools port. 195 19620130916: 197 With the addition of unbound(8), a new unbound user is now 198 required during installworld. "mergemaster -p" can be used to 199 add the user prior to installworld, as documented in the handbook. 200 20120130911: 202 OpenSSH is now built with DNSSEC support, and will by default 203 silently trust signed SSHFP records. This can be controlled with 204 the VerifyHostKeyDNS client configuration setting. DNSSEC support 205 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 206 20720130906: 208 The GNU Compiler Collection and C++ standard library (libstdc++) 209 are no longer built by default on platforms where clang is the system 210 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 211 options in src.conf. 212 21320130905: 214 The PROCDESC kernel option is now part of the GENERIC kernel 215 configuration and is required for the rwhod(8) to work. 216 If you are using custom kernel configuration, you should include 217 'options PROCDESC'. 218 21920130905: 220 The API and ABI related to the Capsicum framework was modified 221 in backward incompatible way. The userland libraries and programs 222 have to be recompiled to work with the new kernel. This includes the 223 following libraries and programs, but the whole buildworld is 224 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 225 kdump, procstat, rwho, rwhod, uniq. 226 22720130903: 228 AES-NI intrinsic support has been added to gcc. The AES-NI module 229 has been updated to use this support. A new gcc is required to build 230 the aesni module on both i386 and amd64. 231 23220130821: 233 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 234 Thus "device padlock_rng" and "device rdrand_rng" should be 235 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 236 23720130813: 238 WITH_ICONV has been split into two feature sets. WITH_ICONV now 239 enables just the iconv* functionality and is now on by default. 240 WITH_LIBICONV_COMPAT enables the libiconv api and link time 241 compatability. Set WITHOUT_ICONV to build the old way. 242 If you have been using WITH_ICONV before, you will very likely 243 need to turn on WITH_LIBICONV_COMPAT. 244 24520130806: 246 INVARIANTS option now enables DEBUG for code with OpenSolaris and 247 Illumos origin, including ZFS. If you have INVARIANTS in your 248 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 249 explicitly. 250 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 251 locks if WITNESS option was set. Because that generated a lot of 252 witness(9) reports and all of them were believed to be false 253 positives, this is no longer done. New option OPENSOLARIS_WITNESS 254 can be used to achieve the previous behavior. 255 25620130806: 257 Timer values in IPv6 data structures now use time_uptime instead 258 of time_second. Although this is not a user-visible functional 259 change, userland utilities which directly use them---ndp(8), 260 rtadvd(8), and rtsold(8) in the base system---need to be updated 261 to r253970 or later. 262 26320130802: 264 find -delete can now delete the pathnames given as arguments, 265 instead of only files found below them or if the pathname did 266 not contain any slashes. Formerly, the following error message 267 would result: 268 269 find: -delete: <path>: relative path potentially not safe 270 271 Deleting the pathnames given as arguments can be prevented 272 without error messages using -mindepth 1 or by changing 273 directory and passing "." as argument to find. This works in the 274 old as well as the new version of find. 275 27620130726: 277 Behavior of devfs rules path matching has been changed. 278 Pattern is now always matched against fully qualified devfs 279 path and slash characters must be explicitly matched by 280 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 281 subdirectories must be reviewed. 282 28320130716: 284 The default ARM ABI has changed to the ARM EABI. The old ABI is 285 incompatible with the ARM EABI and all programs and modules will 286 need to be rebuilt to work with a new kernel. 287 288 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 289 290 NOTE: Support for the old ABI will be removed in the future and 291 users are advised to upgrade. 292 29320130709: 294 pkg_install has been disconnected from the build if you really need it 295 you should add WITH_PKGTOOLS in your src.conf(5). 296 29720130709: 298 Most of network statistics structures were changed to be able 299 keep 64-bits counters. Thus all tools, that work with networking 300 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 301 30220130629: 303 Fix targets that run multiple make's to use && rather than ; 304 so that subsequent steps depend on success of previous. 305 306 NOTE: if building 'universe' with -j* on stable/8 or stable/9 307 it would be better to start the build using bmake, to avoid 308 overloading the machine. 309 31020130618: 311 Fix a bug that allowed a tracing process (e.g. gdb) to write 312 to a memory-mapped file in the traced process's address space 313 even if neither the traced process nor the tracing process had 314 write access to that file. 315 31620130615: 317 CVS has been removed from the base system. An exact copy 318 of the code is available from the devel/cvs port. 319 32020130613: 321 Some people report the following error after the switch to bmake: 322 323 make: illegal option -- J 324 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 325 ... 326 *** [buildworld] Error code 2 327 328 this likely due to an old instance of make in 329 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 330 which src/Makefile will use that blindly, if it exists, so if 331 you see the above error: 332 333 rm -rf `make -V MAKEPATH` 334 335 should resolve it. 336 33720130516: 338 Use bmake by default. 339 Whereas before one could choose to build with bmake via 340 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 341 make. The goal is to remove these knobs for 10-RELEASE. 342 343 It is worth noting that bmake (like gmake) treats the command 344 line as the unit of failure, rather than statements within the 345 command line. Thus '(cd some/where && dosomething)' is safer 346 than 'cd some/where; dosomething'. The '()' allows consistent 347 behavior in parallel build. 348 34920130429: 350 Fix a bug that allows NFS clients to issue READDIR on files. 351 35220130426: 353 The WITHOUT_IDEA option has been removed because 354 the IDEA patent expired. 355 35620130426: 357 The sysctl which controls TRIM support under ZFS has been renamed 358 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 359 enabled by default. 360 36120130425: 362 The mergemaster command now uses the default MAKEOBJDIRPREFIX 363 rather than creating it's own in the temporary directory in 364 order allow access to bootstrapped versions of tools such as 365 install and mtree. When upgrading from version of FreeBSD where 366 the install command does not support -l, you will need to 367 install a new mergemaster command if mergemaster -p is required. 368 This can be accomplished with the command (cd src/usr.sbin/mergemaster 369 && make install). 370 37120130404: 372 Legacy ATA stack, disabled and replaced by new CAM-based one since 373 FreeBSD 9.0, completely removed from the sources. Kernel modules 374 atadisk and atapi*, user-level tools atacontrol and burncd are 375 removed. Kernel option `options ATA_CAM` is now permanently enabled 376 and removed. 377 37820130319: 379 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 380 and socketpair(2). Software, in particular Kerberos, may 381 automatically detect and use these during building. The resulting 382 binaries will not work on older kernels. 383 38420130308: 385 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 386 information, see the respective 20130304 entry). 387 38820130304: 389 Recent commits to callout(9) changed the size of struct callout, 390 so the KBI is probably heavily disturbed. Also, some functions 391 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 392 by macros. Every kernel module using it won't load, so rebuild 393 is requested. 394 395 The ctl device has been re-enabled in GENERIC for i386 and amd64, 396 but does not initialize by default (because of the new CTL_DISABLE 397 option) to save memory. To re-enable it, remove the CTL_DISABLE 398 option from the kernel config file or set kern.cam.ctl.disable=0 399 in /boot/loader.conf. 400 40120130301: 402 The ctl device has been disabled in GENERIC for i386 and amd64. 403 This was done due to the extra memory being allocated at system 404 initialisation time by the ctl driver which was only used if 405 a CAM target device was created. This makes a FreeBSD system 406 unusable on 128MB or less of RAM. 407 40820130208: 409 A new compression method (lz4) has been merged to -HEAD. Please 410 refer to zpool-features(7) for more information. 411 412 Please refer to the "ZFS notes" section of this file for information 413 on upgrading boot ZFS pools. 414 41520130129: 416 A BSD-licensed patch(1) variant has been added and is installed 417 as bsdpatch, being the GNU version the default patch. 418 To inverse the logic and use the BSD-licensed one as default, 419 while having the GNU version installed as gnupatch, rebuild 420 and install world with the WITH_BSD_PATCH knob set. 421 42220130121: 423 Due to the use of the new -l option to install(1) during build 424 and install, you must take care not to directly set the INSTALL 425 make variable in your /etc/make.conf, /etc/src.conf, or on the 426 command line. If you wish to use the -C flag for all installs 427 you may be able to add INSTALL+=-C to /etc/make.conf or 428 /etc/src.conf. 429 43020130118: 431 The install(1) option -M has changed meaning and now takes an 432 argument that is a file or path to append logs to. In the 433 unlikely event that -M was the last option on the command line 434 and the command line contained at least two files and a target 435 directory the first file will have logs appended to it. The -M 436 option served little practical purpose in the last decade so its 437 use is expected to be extremely rare. 438 43920121223: 440 After switching to Clang as the default compiler some users of ZFS 441 on i386 systems started to experience stack overflow kernel panics. 442 Please consider using 'options KSTACK_PAGES=4' in such configurations. 443 44420121222: 445 GEOM_LABEL now mangles label names read from file system metadata. 446 Mangling affect labels containing spaces, non-printable characters, 447 '%' or '"'. Device names in /etc/fstab and other places may need to 448 be updated. 449 45020121217: 451 By default, only the 10 most recent kernel dumps will be saved. To 452 restore the previous behaviour (no limit on the number of kernel dumps 453 stored in the dump directory) add the following line to /etc/rc.conf: 454 455 savecore_flags="" 456 45720121201: 458 With the addition of auditdistd(8), a new auditdistd user is now 459 required during installworld. "mergemaster -p" can be used to 460 add the user prior to installworld, as documented in the handbook. 461 46220121117: 463 The sin6_scope_id member variable in struct sockaddr_in6 is now 464 filled by the kernel before passing the structure to the userland via 465 sysctl or routing socket. This means the KAME-specific embedded scope 466 id in sin6_addr.s6_addr[2] is always cleared in userland application. 467 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 468 __FreeBSD_version is bumped to 1000025. 469 47020121105: 471 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 472 This means that the world and kernel will be compiled with clang 473 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 474 and /usr/bin/cpp. To disable this behavior and revert to building 475 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 476 of current may need to bootstrap WITHOUT_CLANG first if the clang 477 build fails (its compatibility window doesn't extend to the 9 stable 478 branch point). 479 48020121102: 481 The IPFIREWALL_FORWARD kernel option has been removed. Its 482 functionality now turned on by default. 483 48420121023: 485 The ZERO_COPY_SOCKET kernel option has been removed and 486 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 487 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 488 mechanism which is not safe and may result in kernel crashes. 489 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 490 driver supports disposeable external page sized mbuf storage. 491 Proper replacements for both zero-copy mechanisms are under 492 consideration and will eventually lead to complete removal 493 of the two kernel options. 494 49520121023: 496 The IPv4 network stack has been converted to network byte 497 order. The following modules need to be recompiled together 498 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 499 pf(4), ipfw(4), ng_ipfw(4), stf(4). 500 50120121022: 502 Support for non-MPSAFE filesystems was removed from VFS. The 503 VFS_VERSION was bumped, all filesystem modules shall be 504 recompiled. 505 50620121018: 507 All the non-MPSAFE filesystems have been disconnected from 508 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 509 portalfs, smbfs, xfs. 510 51120121016: 512 The interface cloning API and ABI has changed. The following 513 modules need to be recompiled together with kernel: 514 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 515 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 516 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 517 51820121015: 519 The sdhci driver was split in two parts: sdhci (generic SD Host 520 Controller logic) and sdhci_pci (actual hardware driver). 521 No kernel config modifications are required, but if you 522 load sdhc as a module you must switch to sdhci_pci instead. 523 52420121014: 525 Import the FUSE kernel and userland support into base system. 526 52720121013: 528 The GNU sort(1) program has been removed since the BSD-licensed 529 sort(1) has been the default for quite some time and no serious 530 problems have been reported. The corresponding WITH_GNU_SORT 531 knob has also gone. 532 53320121006: 534 The pfil(9) API/ABI for AF_INET family has been changed. Packet 535 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 536 with new kernel. 537 53820121001: 539 The net80211(4) ABI has been changed to allow for improved driver 540 PS-POLL and power-save support. All wireless drivers need to be 541 recompiled to work with the new kernel. 542 54320120913: 544 The random(4) support for the VIA hardware random number 545 generator (`PADLOCK') is no longer enabled unconditionally. 546 Add the padlock_rng device in the custom kernel config if 547 needed. The GENERIC kernels on i386 and amd64 do include the 548 device, so the change only affects the custom kernel 549 configurations. 550 55120120908: 552 The pf(4) packet filter ABI has been changed. pfctl(8) and 553 snmp_pf module need to be recompiled to work with new kernel. 554 55520120828: 556 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 557 to -HEAD. Pools that have empty_bpobj in active state can not be 558 imported read-write with ZFS implementations that do not support 559 this feature. For more information read the zpool-features(5) 560 manual page. 561 56220120727: 563 The sparc64 ZFS loader has been changed to no longer try to auto- 564 detect ZFS providers based on diskN aliases but now requires these 565 to be explicitly listed in the OFW boot-device environment variable. 566 56720120712: 568 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 569 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 570 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 571 57220120712: 573 The following sysctls and tunables have been renamed for consistency 574 with other variables: 575 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 576 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 577 57820120628: 579 The sort utility has been replaced with BSD sort. For now, GNU sort 580 is also available as "gnusort" or the default can be set back to 581 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 582 installed as "bsdsort". 583 58420120611: 585 A new version of ZFS (pool version 5000) has been merged to -HEAD. 586 Starting with this version the old system of ZFS pool versioning 587 is superseded by "feature flags". This concept enables forward 588 compatibility against certain future changes in functionality of ZFS 589 pools. The first read-only compatible "feature flag" for ZFS pools 590 is named "com.delphix:async_destroy". For more information 591 read the new zpool-features(5) manual page. 592 Please refer to the "ZFS notes" section of this file for information 593 on upgrading boot ZFS pools. 594 59520120417: 596 The malloc(3) implementation embedded in libc now uses sources imported 597 as contrib/jemalloc. The most disruptive API change is to 598 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 599 delete it prior to installworld, and optionally re-create it using the 600 new format after rebooting. See malloc.conf(5) for details 601 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 602 NAMESPACE section). 603 60420120328: 605 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 606 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 607 now spelled mips. This is to aid compatibility with third-party 608 software that expects this naming scheme in uname(3). Little-endian 609 settings are unchanged. If you are updating a big-endian mips64 machine 610 from before this change, you may need to set MACHINE_ARCH=mips64 in 611 your environment before the new build system will recognize your machine. 612 61320120306: 614 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 615 platforms. 616 61720120229: 618 Now unix domain sockets behave "as expected" on nullfs(5). Previously 619 nullfs(5) did not pass through all behaviours to the underlying layer, 620 as a result if we bound to a socket on the lower layer we could connect 621 only to the lower path; if we bound to the upper layer we could connect 622 only to the upper path. The new behavior is one can connect to both the 623 lower and the upper paths regardless what layer path one binds to. 624 62520120211: 626 The getifaddrs upgrade path broken with 20111215 has been restored. 627 If you have upgraded in between 20111215 and 20120209 you need to 628 recompile libc again with your kernel. You still need to recompile 629 world to be able to configure CARP but this restriction already 630 comes from 20111215. 631 63220120114: 633 The set_rcvar() function has been removed from /etc/rc.subr. All 634 base and ports rc.d scripts have been updated, so if you have a 635 port installed with a script in /usr/local/etc/rc.d you can either 636 hand-edit the rcvar= line, or reinstall the port. 637 638 An easy way to handle the mass-update of /etc/rc.d: 639 rm /etc/rc.d/* && mergemaster -i 640 64120120109: 642 panic(9) now stops other CPUs in the SMP systems, disables interrupts 643 on the current CPU and prevents other threads from running. 644 This behavior can be reverted using the kern.stop_scheduler_on_panic 645 tunable/sysctl. 646 The new behavior can be incompatible with kern.sync_on_panic. 647 64820111215: 649 The carp(4) facility has been changed significantly. Configuration 650 of the CARP protocol via ifconfig(8) has changed, as well as format 651 of CARP events submitted to devd(8) has changed. See manual pages 652 for more information. The arpbalance feature of carp(4) is currently 653 not supported anymore. 654 655 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 656 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 657 need to be recompiled. 658 65920111122: 660 The acpi_wmi(4) status device /dev/wmistat has been renamed to 661 /dev/wmistat0. 662 66320111108: 664 The option VFS_ALLOW_NONMPSAFE option has been added in order to 665 explicitely support non-MPSAFE filesystems. 666 It is on by default for all supported platform at this present 667 time. 668 66920111101: 670 The broken amd(4) driver has been replaced with esp(4) in the amd64, 671 i386 and pc98 GENERIC kernel configuration files. 672 67320110930: 674 sysinstall has been removed 675 67620110923: 677 The stable/9 branch created in subversion. This corresponds to the 678 RELENG_9 branch in CVS. 679 68020110913: 681 This commit modifies vfs_register() so that it uses a hash 682 calculation to set vfc_typenum, which is enabled by default. 683 The first time a system is booted after this change, the 684 vfc_typenum values will change for all file systems. The 685 main effect of this is a change to the NFS server file handles 686 for file systems that use vfc_typenum in their fsid, such as ZFS. 687 It will, however, prevent vfc_typenum from changing when file 688 systems are loaded in a different order for subsequent reboots. 689 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 690 until you are ready to remount all NFS clients after a reboot. 691 69220110828: 693 Bump the shared library version numbers for libraries that 694 do not use symbol versioning, have changed the ABI compared 695 to stable/8 and which shared library version was not bumped. 696 Done as part of 9.0-RELEASE cycle. 697 69820110815: 699 During the merge of Capsicum features, the fget(9) KPI was modified. 700 This may require the rebuilding of out-of-tree device drivers -- 701 issues have been reported specifically with the nVidia device driver. 702 __FreeBSD_version is bumped to 900041. 703 704 Also, there is a period between 20110811 and 20110814 where the 705 special devices /dev/{stdin,stdout,stderr} did not work correctly. 706 Building world from a kernel during that window may not work. 707 70820110628: 709 The packet filter (pf) code has been updated to OpenBSD 4.5. 710 You need to update userland tools to be in sync with kernel. 711 This update breaks backward compatibility with earlier pfsync(4) 712 versions. Care must be taken when updating redundant firewall setups. 713 71420110608: 715 The following sysctls and tunables are retired on x86 platforms: 716 machdep.hlt_cpus 717 machdep.hlt_logical_cpus 718 The following sysctl is retired: 719 machdep.hyperthreading_allowed 720 The sysctls were supposed to provide a way to dynamically offline and 721 online selected CPUs on x86 platforms, but the implementation has not 722 been reliable especially with SCHED_ULE scheduler. 723 machdep.hyperthreading_allowed tunable is still available to ignore 724 hyperthreading CPUs at OS level. 725 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 726 where X is an APIC ID of a CPU. Be advised, though, that disabling 727 CPUs in non-uniform fashion will result in non-uniform topology and 728 may lead to sub-optimal system performance with SCHED_ULE, which is 729 a default scheduler. 730 73120110607: 732 cpumask_t type is retired and cpuset_t is used in order to describe 733 a mask of CPUs. 734 73520110531: 736 Changes to ifconfig(8) for dynamic address family detection mandate 737 that you are running a kernel of 20110525 or later. Make sure to 738 follow the update procedure to boot a new kernel before installing 739 world. 740 74120110513: 742 Support for sun4v architecture is officially dropped 743 74420110503: 745 Several KPI breaking changes have been committed to the mii(4) layer, 746 the PHY drivers and consequently some Ethernet drivers using mii(4). 747 This means that miibus.ko and the modules of the affected Ethernet 748 drivers need to be recompiled. 749 750 Note to kernel developers: Given that the OUI bit reversion problem 751 was fixed as part of these changes all mii(4) commits related to OUIs, 752 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 753 handling, no longer can be merged verbatim to stable/8 and previous 754 branches. 755 75620110430: 757 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 758 into their kernel configurations along with 'device pci'. 759 76020110427: 761 The default NFS client is now the new NFS client, so fstype "newnfs" 762 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 763 Although mounts via fstype "nfs" will usually work without userland 764 changes, it is recommended that the mount(8) and mount_nfs(8) 765 commands be rebuilt from sources and that a link to mount_nfs called 766 mount_oldnfs be created. The new client is compiled into the 767 kernel with "options NFSCL" and this is needed for diskless root 768 file systems. The GENERIC kernel configs have been changed to use 769 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 770 To use the regular/old client, you can "mount -t oldnfs ...". For 771 a diskless root file system, you must also include a line like: 772 773 vfs.root.mountfrom="oldnfs:" 774 775 in the boot/loader.conf on the root fs on the NFS server to make 776 a diskless root fs use the old client. 777 77820110424: 779 The GENERIC kernels for all architectures now default to the new 780 CAM-based ATA stack. It means that all legacy ATA drivers were 781 removed and replaced by respective CAM drivers. If you are using 782 ATA device names in /etc/fstab or other places, make sure to update 783 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 784 where 'Y's are the sequential numbers starting from zero for each type 785 in order of detection, unless configured otherwise with tunables, 786 see cam(4)). There will be symbolic links created in /dev/ to map 787 old adX devices to the respective adaY. They should provide basic 788 compatibility for file systems mounting in most cases, but they do 789 not support old user-level APIs and do not have respective providers 790 in GEOM. Consider using updated management tools with new device names. 791 792 It is possible to load devices ahci, ata, siis and mvs as modules, 793 but option ATA_CAM should remain in kernel configuration to make ata 794 module work as CAM driver supporting legacy ATA controllers. Device ata 795 still can be used in modular fashion (atacore + ...). Modules atadisk 796 and atapi* are not used and won't affect operation in ATA_CAM mode. 797 Note that to use CAM-based ATA kernel should include CAM devices 798 scbus, pass, da (or explicitly ada), cd and optionally others. All of 799 them are parts of the cam module. 800 801 ataraid(4) functionality is now supported by the RAID GEOM class. 802 To use it you can load geom_raid kernel module and use graid(8) tool 803 for management. Instead of /dev/arX device names, use /dev/raid/rX. 804 805 No kernel config options or code have been removed, so if a problem 806 arises, please report it and optionally revert to the old ATA stack. 807 In order to do it you can remove from the kernel config: 808 options ATA_CAM 809 device ahci 810 device mvs 811 device siis 812 , and instead add back: 813 device atadisk # ATA disk drives 814 device ataraid # ATA RAID drives 815 device atapicd # ATAPI CDROM drives 816 device atapifd # ATAPI floppy drives 817 device atapist # ATAPI tape drives 818 81920110423: 820 The default NFS server has been changed to the new server, which 821 was referred to as the experimental server. If you need to switch 822 back to the old NFS server, you must now put the "-o" option on 823 both the mountd and nfsd commands. This can be done using the 824 mountd_flags and nfs_server_flags rc.conf variables until an 825 update to the rc scripts is committed, which is coming soon. 826 82720110418: 828 The GNU Objective-C runtime library (libobjc), and other Objective-C 829 related components have been removed from the base system. If you 830 require an Objective-C library, please use one of the available ports. 831 83220110331: 833 ath(4) has been split into bus- and device- modules. if_ath contains 834 the HAL, the TX rate control and the network device code. if_ath_pci 835 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 836 contains the AHB glue. Users need to load both if_ath_pci and if_ath 837 in order to use ath on everything else. 838 839 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 840 need to load if_ath and if_ath_pci for ath(4) operation. 841 84220110314: 843 As part of the replacement of sysinstall, the process of building 844 release media has changed significantly. For details, please re-read 845 release(7), which has been updated to reflect the new build process. 846 84720110218: 848 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 849 is the last available version under GPLv2. It brings a number of new 850 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 851 4.1 and SSE 4.2), better support for powerpc64, a number of new 852 directives, and lots of other small improvements. See the ChangeLog 853 file in contrib/binutils for the full details. 854 85520110218: 856 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 857 compliant, and will now use half of hash for authentication. 858 This will break interoperability with all stacks (including all 859 actual FreeBSD versions) who implement 860 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 861 authentication). 862 The only workaround with such peers is to use another HMAC 863 algorithm for IPsec ("phase 2") authentication. 864 86520110207: 866 Remove the uio_yield prototype and symbol. This function has 867 been misnamed since it was introduced and should not be 868 globally exposed with this name. The equivalent functionality 869 is now available using kern_yield(curthread->td_user_pri). 870 The function remains undocumented. 871 87220110112: 873 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 874 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 875 for scalar sysctls is defined but disabled. Code that needs 876 UQUAD to pass the type checking that must compile on older 877 systems where the define is not present can check against 878 __FreeBSD_version >= 900030. 879 880 The system dialog(1) has been replaced with a new version previously 881 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 882 with the previous version, but the libdialog associated with it has 883 a largely incompatible API. As such, the original version of libdialog 884 will be kept temporarily as libodialog, until its base system consumers 885 are replaced or updated. Bump __FreeBSD_version to 900030. 886 88720110103: 888 If you are trying to run make universe on a -stable system, and you get 889 the following warning: 890 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 891 unknown. config(8) likely too old." 892 or something similar to it, then you must upgrade your -stable system 893 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 894 stable/8) or build the config from the latest stable/8 branch and 895 install it on your system. 896 897 Prior to this date, building a current universe on 8-stable system from 898 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 899 error in the first kernel build phase. A new config on those old 900 systems will fix that problem for older versions of -current. 901 90220101228: 903 The TCP stack has been modified to allow Khelp modules to interact with 904 it via helper hook points and store per-connection data in the TCP 905 control block. Bump __FreeBSD_version to 900029. User space tools that 906 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 907 be recompiled. 908 90920101114: 910 Generic IEEE 802.3 annex 31B full duplex flow control support has been 911 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 912 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 913 to take advantage of it instead of using custom implementations. This 914 means that these drivers now no longer unconditionally advertise 915 support for flow control but only do so if flow control is a selected 916 media option. This was implemented in the generic support that way in 917 order to allow flow control to be switched on and off via ifconfig(8) 918 with the PHY specific default to typically off in order to protect 919 from unwanted effects. Consequently, if you used flow control with 920 one of the above mentioned drivers you now need to explicitly enable 921 it, for example via: 922 ifconfig bge0 media auto mediaopt flowcontrol 923 924 Along with the above mentioned changes generic support for setting 925 1000baseT master mode also has been added and brgphy(4), ciphy(4), 926 e1000phy(4) as well as ip1000phy(4) have been converted to take 927 advantage of it. This means that these drivers now no longer take the 928 link0 parameter for selecting master mode but the master media option 929 has to be used instead, for example like in the following: 930 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 931 932 Selection of master mode now is also available with all other PHY 933 drivers supporting 1000baseT. 934 93520101111: 936 The TCP stack has received a significant update to add support for 937 modularised congestion control and generally improve the clarity of 938 congestion control decisions. Bump __FreeBSD_version to 900025. User 939 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 940 sockstat) need to be recompiled. 941 94220101002: 943 The man(1) utility has been replaced by a new version that no longer 944 uses /etc/manpath.config. Please consult man.conf(5) for how to 945 migrate local entries to the new format. 946 94720100928: 948 The copyright strings printed by login(1) and sshd(8) at the time of a 949 new connection have been removed to follow other operating systems and 950 upstream sshd. 951 95220100915: 953 A workaround for a fixed ld bug has been removed in kernel code, 954 so make sure that your system ld is built from sources after 955 revision 210245 from 2010-07-19 (r211583 if building head kernel 956 on stable/8, r211584 for stable/7; both from 2010-08-21). 957 A symptom of incorrect ld version is different addresses for 958 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 959 96020100913: 961 The $ipv6_prefer variable in rc.conf(5) has been split into 962 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 963 964 The $ip6addrctl_policy is a variable to choose a pre-defined 965 address selection policy set by ip6addrctl(8). A value 966 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 967 default is "AUTO". 968 969 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 970 flag (see an entry of 20090926) is set on an interface with no 971 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 972 security reason. If you want IPv6 link-local address on all 973 interfaces by default, set this to "YES". 974 975 The old ipv6_prefer="YES" is equivalent to 976 ipv6_activate_all_interfaces="YES" and 977 ip6addrctl_policy="ipv6_prefer". 978 97920100913: 980 DTrace has grown support for userland tracing. Due to this, DTrace is 981 now i386 and amd64 only. 982 dtruss(1) is now installed by default on those systems and a new 983 kernel module is needed for userland tracing: fasttrap. 984 No changes to your kernel config file are necessary to enable 985 userland tracing, but you might consider adding 'STRIP=' and 986 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 987 to have informative userland stack traces in DTrace (ustack). 988 98920100725: 990 The acpi_aiboost(4) driver has been removed in favor of the new 991 aibs(4) driver. You should update your kernel configuration file. 992 99320100722: 994 BSD grep has been imported to the base system and it is built by 995 default. It is completely BSD licensed, highly GNU-compatible, uses 996 less memory than its GNU counterpart and has a small codebase. 997 However, it is slower than its GNU counterpart, which is mostly 998 noticeable for larger searches, for smaller ones it is measurable 999 but not significant. The reason is complex, the most important factor 1000 is that we lack a modern and efficient regex library and GNU 1001 overcomes this by optimizing the searches internally. Future work 1002 on improving the regex performance is planned, for the meantime, 1003 users that need better performance, can build GNU grep instead by 1004 setting the WITH_GNU_GREP knob. 1005 100620100713: 1007 Due to the import of powerpc64 support, all existing powerpc kernel 1008 configuration files must be updated with a machine directive like this: 1009 machine powerpc powerpc 1010 1011 In addition, an updated config(8) is required to build powerpc kernels 1012 after this change. 1013 101420100713: 1015 A new version of ZFS (version 15) has been merged to -HEAD. 1016 This version uses a python library for the following subcommands: 1017 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1018 For full functionality of these commands the following port must 1019 be installed: sysutils/py-zfs 1020 102120100429: 1022 'vm_page's are now hashed by physical address to an array of mutexes. 1023 Currently this is only used to serialize access to hold_count. Over 1024 time the page queue mutex will be peeled away. This changes the size 1025 of pmap on every architecture. And requires all callers of vm_page_hold 1026 and vm_page_unhold to be updated. 1027 102820100402: 1029 WITH_CTF can now be specified in src.conf (not recommended, there 1030 are some problems with static executables), make.conf (would also 1031 affect ports which do not use GNU make and do not override the 1032 compile targets) or in the kernel config (via "makeoptions 1033 WITH_CTF=yes"). 1034 When WITH_CTF was specified there before this was silently ignored, 1035 so make sure that WITH_CTF is not used in places which could lead 1036 to unwanted behavior. 1037 103820100311: 1039 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1040 to allow 32-bit compatibility on non-x86 platforms. All kernel 1041 configurations on amd64 and ia64 platforms using these options must 1042 be modified accordingly. 1043 104420100113: 1045 The utmp user accounting database has been replaced with utmpx, 1046 the user accounting interface standardized by POSIX. 1047 Unfortunately the semantics of utmp and utmpx don't match, 1048 making it practically impossible to support both interfaces. 1049 The user accounting database is used by tools like finger(1), 1050 last(1), talk(1), w(1) and ac(8). 1051 1052 All applications in the base system use utmpx. This means only 1053 local binaries (e.g. from the ports tree) may still use these 1054 utmp database files. These applications must be rebuilt to make 1055 use of utmpx. 1056 1057 After the system has been upgraded, it is safe to remove the old 1058 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1059 assuming their contents is of no importance anymore. Old wtmp 1060 databases can only be used by last(1) and ac(8) after they have 1061 been converted to the new format using wtmpcvt(1). 1062 106320100108: 1064 Introduce the kernel thread "deadlock resolver" (which can be enabled 1065 via the DEADLKRES option, see NOTES for more details) and the 1066 sleepq_type() function for sleepqueues. 1067 106820091202: 1069 The rc.firewall and rc.firewall6 were unified, and 1070 rc.firewall6 and rc.d/ip6fw were removed. 1071 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1072 variables are obsoleted. Instead, the following new rc 1073 variables are added to rc.d/ipfw: 1074 1075 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1076 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1077 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1078 1079 The meanings correspond to the relevant IPv4 variables. 1080 108120091125: 1082 8.0-RELEASE. 1083 108420091113: 1085 The default terminal emulation for syscons(4) has been changed 1086 from cons25 to xterm on all platforms except pc98. This means 1087 that the /etc/ttys file needs to be updated to ensure correct 1088 operation of applications on the console. 1089 1090 The terminal emulation style can be toggled per window by using 1091 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1092 options can be used to change the compile-time default back to 1093 cons25. 1094 1095 To prevent graphical artifacts, make sure the TERM environment 1096 variable is set to match the terminal emulation that is being 1097 performed by syscons(4). 1098 109920091109: 1100 The layout of the structure ieee80211req_scan_result has changed. 1101 Applications that require wireless scan results (e.g. ifconfig(8)) 1102 from net80211 need to be recompiled. 1103 1104 Applications such as wpa_supplicant(8) may require a full world 1105 build without using NO_CLEAN in order to get synchronized with the 1106 new structure. 1107 110820091025: 1109 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1110 There's one kernel module for each firmware. Adding "device iwnfw" 1111 to the kernel configuration file means including all three firmware 1112 images inside the kernel. If you want to include just the one for 1113 your wireless card, use the devices iwn4965fw, iwn5000fw or 1114 iwn5150fw. 1115 111620090926: 1117 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1118 into rc.d/netif. The changes are the following: 1119 1120 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1121 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1122 Note that both variables need the "inet6" keyword at the head. 1123 1124 Do not set $ipv6_network_interfaces manually if you do not 1125 understand what you are doing. It is not needed in most cases. 1126 1127 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1128 they are obsolete. 1129 1130 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1131 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1132 1133 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1134 all configured interfaces have "inet6 accept_rtadv" in the 1135 $ifconfig_IF_ipv6. These are for backward compatibility. 1136 1137 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1138 functionality of interfaces with no corresponding 1139 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1140 and the default address selection policy of ip6addrctl(8) 1141 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1142 Note that if you want to configure IPv6 functionality on the 1143 disabled interfaces after boot, first you need to clear the flag by 1144 using ifconfig(8) like: 1145 1146 ifconfig em0 inet6 -ifdisabled 1147 1148 If YES, the default address selection policy is set as 1149 IPv6-preferred. 1150 1151 The default value of $ipv6_prefer is NO. 1152 1153 4. If your system need to receive Router Advertisement messages, 1154 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1155 scripts automatically invoke rtsol(8) when the interface becomes 1156 UP. The Router Advertisement messages are used for SLAAC 1157 (State-Less Address AutoConfiguration). 1158 115920090922: 1160 802.11s D3.03 support was committed. This is incompatible with the 1161 previous code, which was based on D3.0. 1162 116320090912: 1164 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1165 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1166 control whether accepting Router Advertisement messages or not. 1167 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1168 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1169 The ifconfig(8) utility now supports these flags. 1170 117120090910: 1172 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1173 mount(8) and -a option for df(1) to see them. 1174 117520090825: 1176 The old tunable hw.bus.devctl_disable has been superseded by 1177 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1178 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1179 is 1000. 1180 118120090813: 1182 Remove the option STOP_NMI. The default action is now to use NMI only 1183 for KDB via the newly introduced function stop_cpus_hard() and 1184 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1185 118620090803: 1187 The stable/8 branch created in subversion. This corresponds to the 1188 RELENG_8 branch in CVS. 1189 119020090719: 1191 Bump the shared library version numbers for all libraries that do not 1192 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1193 __FreeBSD_version to 800105. 1194 119520090714: 1196 Due to changes in the implementation of virtual network stack support, 1197 all network-related kernel modules must be recompiled. As this change 1198 breaks the ABI, bump __FreeBSD_version to 800104. 1199 120020090713: 1201 The TOE interface to the TCP syncache has been modified to remove 1202 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1203 The cxgb driver is the only TOE consumer affected by this change, and 1204 needs to be recompiled along with the kernel. As this change breaks 1205 the ABI, bump __FreeBSD_version to 800103. 1206 120720090712: 1208 Padding has been added to struct tcpcb, sackhint and tcpstat in 1209 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1210 maintaining the ABI. However, this change breaks the ABI, so bump 1211 __FreeBSD_version to 800102. User space tools that rely on the size of 1212 any of these structs (e.g. sockstat) need to be recompiled. 1213 121420090630: 1215 The NFS_LEGACYRPC option has been removed along with the old kernel 1216 RPC implementation that this option selected. Kernel configurations 1217 may need to be adjusted. 1218 121920090629: 1220 The network interface device nodes at /dev/net/<interface> have been 1221 removed. All ioctl operations can be performed the normal way using 1222 routing sockets. The kqueue functionality can generally be replaced 1223 with routing sockets. 1224 122520090628: 1226 The documentation from the FreeBSD Documentation Project (Handbook, 1227 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1228 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1229 123020090624: 1231 The ABI of various structures related to the SYSV IPC API have been 1232 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1233 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1234 800100. 1235 123620090622: 1237 Layout of struct vnet has changed as routing related variables were 1238 moved to their own Vimage module. Modules need to be recompiled. Bump 1239 __FreeBSD_version to 800099. 1240 124120090619: 1242 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1243 respectively. As long as no more than 16 groups per process are used, 1244 no changes should be visible. When more than 16 groups are used, old 1245 binaries may fail if they call getgroups() or getgrouplist() with 1246 statically sized storage. Recompiling will work around this, but 1247 applications should be modified to use dynamically allocated storage 1248 for group arrays as POSIX.1-2008 does not cap an implementation's 1249 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1250 1251 NFS and portalfs mounts may also be affected as the list of groups is 1252 truncated to 16. Users of NFS who use more than 16 groups, should 1253 take care that negative group permissions are not used on the exported 1254 file systems as they will not be reliable unless a GSSAPI based 1255 authentication method is used. 1256 125720090616: 1258 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1259 option compiles in the support for adaptive spinning for lockmgrs 1260 which want to enable it. The lockinit() function now accepts the flag 1261 LK_ADAPTIVE in order to make the lock object subject to adaptive 1262 spinning when both held in write and read mode. 1263 126420090613: 1265 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1266 changed. User applications that use this ioctl need to be rebuilt. 1267 126820090611: 1269 The layout of struct thread has changed. Kernel and modules need to 1270 be rebuilt. 1271 127220090608: 1273 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1274 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1275 127620090602: 1277 window(1) has been removed from the base system. It can now be 1278 installed from ports. The port is called misc/window. 1279 128020090601: 1281 The way we are storing and accessing `routing table' entries has 1282 changed. Programs reading the FIB, like netstat, need to be 1283 re-compiled. 1284 128520090601: 1286 A new netisr implementation has been added for FreeBSD 8. Network 1287 file system modules, such as igmp, ipdivert, and others, should be 1288 rebuilt. 1289 Bump __FreeBSD_version to 800096. 1290 129120090530: 1292 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1293 more valid. 1294 129520090530: 1296 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1297 Bump __FreeBSD_version to 800094. 1298 129920090529: 1300 Add mnt_xflag field to 'struct mount'. File system modules need to be 1301 rebuilt. 1302 Bump __FreeBSD_version to 800093. 1303 130420090528: 1305 The compiling option ADAPTIVE_SX has been retired while it has been 1306 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1307 The KPI for sx_init_flags() changes as accepting flags: 1308 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1309 been introduced in order to handle the reversed logic. 1310 Bump __FreeBSD_version to 800092. 1311 131220090527: 1313 Add support for hierarchical jails. Remove global securelevel. 1314 Bump __FreeBSD_version to 800091. 1315 131620090523: 1317 The layout of struct vnet_net has changed, therefore modules 1318 need to be rebuilt. 1319 Bump __FreeBSD_version to 800090. 1320 132120090523: 1322 The newly imported zic(8) produces a new format in the output. Please 1323 run tzsetup(8) to install the newly created data to /etc/localtime. 1324 132520090520: 1326 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1327 hw.usb.* and is now consistent again with previous releases. 1328 132920090520: 1330 802.11 monitor mode support was revised and driver api's were changed. 1331 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1332 of DLT_IEEE802_11. No user-visible data structures were changed but 1333 applications that use DLT_IEEE802_11 may require changes. 1334 Bump __FreeBSD_version to 800088. 1335 133620090430: 1337 The layout of the following structs has changed: sysctl_oid, 1338 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1339 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1340 panics may be experienced. World rebuild is required for 1341 correctly checking networking state from userland. 1342 Bump __FreeBSD_version to 800085. 1343 134420090429: 1345 MLDv2 and Source-Specific Multicast (SSM) have been merged 1346 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1347 The implementation of SSM within FreeBSD's IPv6 stack closely 1348 follows the IPv4 implementation. 1349 1350 For kernel developers: 1351 1352 * The most important changes are that the ip6_output() and 1353 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1354 and this lock has been downgraded to a non-recursive mutex. 1355 1356 * As with the changes to the IPv4 stack to support SSM, filtering 1357 of inbound multicast traffic must now be performed by transport 1358 protocols within the IPv6 stack. This does not apply to TCP and 1359 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1360 1361 * The KPIs used by IPv6 multicast are similar to those used by 1362 the IPv4 stack, with the following differences: 1363 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1364 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1365 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1366 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1367 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1368 for MLDv1 have an additional 'timer' argument which is used to 1369 jitter the initial membership report for the solicited-node 1370 multicast membership on-link. 1371 * This is not strictly needed for MLDv2, which already jitters 1372 its report transmissions. However, the 'timer' argument is 1373 preserved in case MLDv1 is active on the interface. 1374 1375 * The KAME linked-list based IPv6 membership implementation has 1376 been refactored to use a vector similar to that used by the IPv4 1377 stack. 1378 Code which maintains a list of its own multicast memberships 1379 internally, e.g. carp, has been updated to reflect the new 1380 semantics. 1381 1382 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1383 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1384 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1385 implementation constraint which needs to be addressed in HEAD. 1386 1387 For application developers: 1388 1389 * The changes are broadly similar to those made for the IPv4 1390 stack. 1391 1392 * The use of IPv4 and IPv6 multicast socket options on the same 1393 socket, using mapped addresses, HAS NOT been tested or supported. 1394 1395 * There are a number of issues with the implementation of various 1396 IPv6 multicast APIs which need to be resolved in the API surface 1397 before the implementation is fully compatible with KAME userland 1398 use, and these are mostly to do with interface index treatment. 1399 1400 * The literature available discusses the use of either the delta / ASM 1401 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1402 using setsourcefilter(3)/getsourcefilter(3). For more information 1403 please refer to RFC 3768, 'Socket Interface Extensions for 1404 Multicast Source Filters'. 1405 1406 * Applications which use the published RFC 3678 APIs should be fine. 1407 1408 For systems administrators: 1409 1410 * The mtest(8) utility has been refactored to support IPv6, in 1411 addition to IPv4. Interface addresses are no longer accepted 1412 as arguments, their names must be used instead. The utility 1413 will map the interface name to its first IPv4 address as 1414 returned by getifaddrs(3). 1415 1416 * The ifmcstat(8) utility has also been updated to print the MLDv2 1417 endpoint state and source filter lists via sysctl(3). 1418 1419 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1420 loopback of IPv6 multicast datagrams by default; it defaults to 1 1421 to preserve the existing behaviour. Disabling multicast loopback is 1422 recommended for optimal system performance. 1423 1424 * The IPv6 MROUTING code has been changed to examine this sysctl 1425 instead of attempting to perform a group lookup before looping 1426 back forwarded datagrams. 1427 1428 Bump __FreeBSD_version to 800084. 1429 143020090422: 1431 Implement low-level Bluetooth HCI API. 1432 Bump __FreeBSD_version to 800083. 1433 143420090419: 1435 The layout of struct malloc_type, used by modules to register new 1436 memory allocation types, has changed. Most modules will need to 1437 be rebuilt or panics may be experienced. 1438 Bump __FreeBSD_version to 800081. 1439 144020090415: 1441 Anticipate overflowing inp_flags - add inp_flags2. 1442 This changes most offsets in inpcb, so checking v4 connection 1443 state will require a world rebuild. 1444 Bump __FreeBSD_version to 800080. 1445 144620090415: 1447 Add an llentry to struct route and struct route_in6. Modules 1448 embedding a struct route will need to be recompiled. 1449 Bump __FreeBSD_version to 800079. 1450 145120090414: 1452 The size of rt_metrics_lite and by extension rtentry has changed. 1453 Networking administration apps will need to be recompiled. 1454 The route command now supports show as an alias for get, weighting 1455 of routes, sticky and nostick flags to alter the behavior of stateful 1456 load balancing. 1457 Bump __FreeBSD_version to 800078. 1458 145920090408: 1460 Do not use Giant for kbdmux(4) locking. This is wrong and 1461 apparently causing more problems than it solves. This will 1462 re-open the issue where interrupt handlers may race with 1463 kbdmux(4) in polling mode. Typical symptoms include (but 1464 not limited to) duplicated and/or missing characters when 1465 low level console functions (such as gets) are used while 1466 interrupts are enabled (for example geli password prompt, 1467 mountroot prompt etc.). Disabling kbdmux(4) may help. 1468 146920090407: 1470 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1471 kernel modules referencing any of the above need to be recompiled. 1472 Bump __FreeBSD_version to 800075. 1473 147420090320: 1475 GEOM_PART has become the default partition slicer for storage devices, 1476 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1477 introduces some changes: 1478 1479 MSDOS/EBR: the devices created from MSDOS extended partition entries 1480 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1481 to devices with offset-based names. fstabs may need to be modified. 1482 1483 BSD: the "geometry does not match label" warning is harmless in most 1484 cases but it points to problems in file system misalignment with 1485 disk geometry. The "c" partition is now implicit, covers the whole 1486 top-level drive and cannot be (mis)used by users. 1487 1488 General: Kernel dumps are now not allowed to be written to devices 1489 whose partition types indicate they are meant to be used for file 1490 systems (or, in case of MSDOS partitions, as something else than 1491 the "386BSD" type). 1492 1493 Most of these changes date approximately from 200812. 1494 149520090319: 1496 The uscanner(4) driver has been removed from the kernel. This follows 1497 Linux removing theirs in 2.6 and making libusb the default interface 1498 (supported by sane). 1499 150020090319: 1501 The multicast forwarding code has been cleaned up. netstat(1) 1502 only relies on KVM now for printing bandwidth upcall meters. 1503 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1504 ip6_mroute_mod respectively. The config(5) options for statically 1505 compiling this code remain the same, i.e. 'options MROUTING'. 1506 150720090315: 1508 Support for the IFF_NEEDSGIANT network interface flag has been 1509 removed, which means that non-MPSAFE network device drivers are no 1510 longer supported. In particular, if_ar, if_sr, and network device 1511 drivers from the old (legacy) USB stack can no longer be built or 1512 used. 1513 151420090313: 1515 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1516 a bunch of new language catalog files have also been added. 1517 This means that some common libc messages are now localized and 1518 they depend on the LC_MESSAGES environmental variable. 1519 152020090313: 1521 The k8temp(4) driver has been renamed to amdtemp(4) since 1522 support for Family 10 and Family 11 CPU families was added. 1523 152420090309: 1525 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1526 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1527 1528 For kernel developers, the most important changes are that the 1529 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1530 and this lock has been downgraded to a non-recursive mutex. 1531 1532 Transport protocols (UDP, Raw IP) are now responsible for filtering 1533 inbound multicast traffic according to group membership and source 1534 filters. The imo_multicast_filter() KPI exists for this purpose. 1535 Transports which do not use multicast (SCTP, TCP) already reject 1536 multicast by default. Forwarding and receive performance may improve 1537 as a mutex acquisition is no longer needed in the ip_input() 1538 low-level input path. in_addmulti() and in_delmulti() are shimmed 1539 to new KPIs which exist to support SSM in-kernel. 1540 1541 For application developers, it is recommended that loopback of 1542 multicast datagrams be disabled for best performance, as this 1543 will still cause the lock to be taken for each looped-back 1544 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1545 be tuned to 0 to disable loopback by default; it defaults to 1 1546 to preserve the existing behaviour. 1547 1548 For systems administrators, to obtain best performance with 1549 multicast reception and multiple groups, it is always recommended 1550 that a card with a suitably precise hash filter is used. Hash 1551 collisions will still result in the lock being taken within the 1552 transport protocol input path to check group membership. 1553 1554 If deploying FreeBSD in an environment with IGMP snooping switches, 1555 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1556 enabled; this forces 224.0.0.0/24 group membership to be announced 1557 via IGMP. 1558 1559 The size of 'struct igmpstat' has changed; netstat needs to be 1560 recompiled to reflect this. 1561 Bump __FreeBSD_version to 800070. 1562 156320090309: 1564 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1565 updated to use it. This requires a buildworld/installworld in order to 1566 update the library and dependencies (usbconfig, etc). Its advisable to 1567 rebuild all ports which uses libusb. More specific directions are given 1568 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1569 libusb are no longer required and can be removed. 1570 157120090302: 1572 A workaround is committed to allow the creation of System V shared 1573 memory segment of size > 2 GB on the 64-bit architectures. 1574 Due to a limitation of the existing ABI, the shm_segsz member 1575 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1576 wrong for large segments. Note that limits must be explicitly 1577 raised to allow such segments to be created. 1578 157920090301: 1580 The layout of struct ifnet has changed, requiring a rebuild of all 1581 network device driver modules. 1582 158320090227: 1584 The /dev handling for the new USB stack has changed, a 1585 buildworld/installworld is required for libusb20. 1586 158720090223: 1588 The new USB2 stack has now been permanently moved in and all kernel and 1589 module names reverted to their previous values (eg, usb, ehci, ohci, 1590 ums, ...). The old usb stack can be compiled in by prefixing the name 1591 with the letter 'o', the old usb modules have been removed. 1592 Updating entry 20090216 for xorg and 20090215 for libmap may still 1593 apply. 1594 159520090217: 1596 The rc.conf(5) option if_up_delay has been renamed to 1597 defaultroute_delay to better reflect its purpose. If you have 1598 customized this setting in /etc/rc.conf you need to update it to 1599 use the new name. 1600 160120090216: 1602 xorg 7.4 wants to configure its input devices via hald which does not 1603 yet work with USB2. If the keyboard/mouse does not work in xorg then 1604 add 1605 Option "AllowEmptyInput" "off" 1606 to your ServerLayout section. This will cause X to use the configured 1607 kbd and mouse sections from your xorg.conf. 1608 160920090215: 1610 The GENERIC kernels for all architectures now default to the new USB2 1611 stack. No kernel config options or code have been removed so if a 1612 problem arises please report it and optionally revert to the old USB 1613 stack. If you are loading USB kernel modules or have a custom kernel 1614 that includes GENERIC then ensure that usb names are also changed over, 1615 eg uftdi -> usb2_serial_ftdi. 1616 1617 Older programs linked against the ports libusb 0.1 need to be 1618 redirected to the new stack's libusb20. /etc/libmap.conf can 1619 be used for this: 1620 # Map old usb library to new one for usb2 stack 1621 libusb-0.1.so.8 libusb20.so.1 1622 162320090209: 1624 All USB ethernet devices now attach as interfaces under the name ueN 1625 (eg. ue0). This is to provide a predictable name as vendors often 1626 change usb chipsets in a product without notice. 1627 162820090203: 1629 The ichsmb(4) driver has been changed to require SMBus slave 1630 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1631 All of the other SMBus controller drivers require left-justified 1632 slave addresses, so this change makes all the drivers provide the 1633 same interface. 1634 163520090201: 1636 INET6 statistics (struct ip6stat) was updated. 1637 netstat(1) needs to be recompiled. 1638 163920090119: 1640 NTFS has been removed from GENERIC kernel on amd64 to match 1641 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1642 will load ntfs.ko module automatically when NTFS support is 1643 actually needed, unless ntfs.ko is not installed or security 1644 level prohibits loading kernel modules. If either is the case, 1645 "options NTFS" has to be added into kernel config. 1646 164720090115: 1648 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1649 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1650 800061. User space tools that rely on the size of struct tcpcb in 1651 tcp_var.h (e.g. sockstat) need to be recompiled. 1652 165320081225: 1654 ng_tty(4) module updated to match the new TTY subsystem. 1655 Due to API change, user-level applications must be updated. 1656 New API support added to mpd5 CVS and expected to be present 1657 in next mpd5.3 release. 1658 165920081219: 1660 With __FreeBSD_version 800060 the makefs tool is part of 1661 the base system (it was a port). 1662 166320081216: 1664 The afdata and ifnet locks have been changed from mutexes to 1665 rwlocks, network modules will need to be re-compiled. 1666 166720081214: 1668 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1669 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1670 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1671 architecture and 40 bytes on 64-bit architecture. The userland 1672 applications "arp" and "ndp" have been updated accordingly. 1673 The output from "netstat -r" shows only routing entries and 1674 none of the L2 information. 1675 167620081130: 1677 __FreeBSD_version 800057 marks the switchover from the 1678 binary ath hal to source code. Users must add the line: 1679 1680 options AH_SUPPORT_AR5416 1681 1682 to their kernel config files when specifying: 1683 1684 device ath_hal 1685 1686 The ath_hal module no longer exists; the code is now compiled 1687 together with the driver in the ath module. It is now 1688 possible to tailor chip support (i.e. reduce the set of chips 1689 and thereby the code size); consult ath_hal(4) for details. 1690 169120081121: 1692 __FreeBSD_version 800054 adds memory barriers to 1693 <machine/atomic.h>, new interfaces to ifnet to facilitate 1694 multiple hardware transmit queues for cards that support 1695 them, and a lock-less ring-buffer implementation to 1696 enable drivers to more efficiently manage queueing of 1697 packets. 1698 169920081117: 1700 A new version of ZFS (version 13) has been merged to -HEAD. 1701 This version has zpool attribute "listsnapshots" off by 1702 default, which means "zfs list" does not show snapshots, 1703 and is the same as Solaris behavior. 1704 170520081028: 1706 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1707 170820081009: 1709 The uhci, ohci, ehci and slhci USB Host controller drivers have 1710 been put into separate modules. If you load the usb module 1711 separately through loader.conf you will need to load the 1712 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1713 controller add the following to loader.conf: 1714 1715 uhci_load="YES" 1716 ehci_load="YES" 1717 171820081009: 1719 The ABI used by the PMC toolset has changed. Please keep 1720 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1721 sync. 1722 172320081009: 1724 atapci kernel module now includes only generic PCI ATA 1725 driver. AHCI driver moved to ataahci kernel module. 1726 All vendor-specific code moved into separate kernel modules: 1727 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1728 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1729 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1730 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1731 173220080820: 1733 The TTY subsystem of the kernel has been replaced by a new 1734 implementation, which provides better scalability and an 1735 improved driver model. Most common drivers have been migrated to 1736 the new TTY subsystem, while others have not. The following 1737 drivers have not yet been ported to the new TTY layer: 1738 1739 PCI/ISA: 1740 cy, digi, rc, rp, sio 1741 1742 USB: 1743 ubser, ucycom 1744 1745 Line disciplines: 1746 ng_h4, ng_tty, ppp, sl, snp 1747 1748 Adding these drivers to your kernel configuration file shall 1749 cause compilation to fail. 1750 175120080818: 1752 ntpd has been upgraded to 4.2.4p5. 1753 175420080801: 1755 OpenSSH has been upgraded to 5.1p1. 1756 1757 For many years, FreeBSD's version of OpenSSH preferred DSA 1758 over RSA for host and user authentication keys. With this 1759 upgrade, we've switched to the vendor's default of RSA over 1760 DSA. This may cause upgraded clients to warn about unknown 1761 host keys even for previously known hosts. Users should 1762 follow the usual procedure for verifying host keys before 1763 accepting the RSA key. 1764 1765 This can be circumvented by setting the "HostKeyAlgorithms" 1766 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1767 command line. 1768 1769 Please note that the sequence of keys offered for 1770 authentication has been changed as well. You may want to 1771 specify IdentityFile in a different order to revert this 1772 behavior. 1773 177420080713: 1775 The sio(4) driver has been removed from the i386 and amd64 1776 kernel configuration files. This means uart(4) is now the 1777 default serial port driver on those platforms as well. 1778 1779 To prevent collisions with the sio(4) driver, the uart(4) driver 1780 uses different names for its device nodes. This means the 1781 onboard serial port will now most likely be called "ttyu0" 1782 instead of "ttyd0". You may need to reconfigure applications to 1783 use the new device names. 1784 1785 When using the serial port as a boot console, be sure to update 1786 /boot/device.hints and /etc/ttys before booting the new kernel. 1787 If you forget to do so, you can still manually specify the hints 1788 at the loader prompt: 1789 1790 set hint.uart.0.at="isa" 1791 set hint.uart.0.port="0x3F8" 1792 set hint.uart.0.flags="0x10" 1793 set hint.uart.0.irq="4" 1794 boot -s 1795 179620080609: 1797 The gpt(8) utility has been removed. Use gpart(8) to partition 1798 disks instead. 1799 180020080603: 1801 The version that Linuxulator emulates was changed from 2.4.2 1802 to 2.6.16. If you experience any problems with Linux binaries 1803 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1804 if it fixes the problem contact emulation mailing list. 1805 180620080525: 1807 ISDN4BSD (I4B) was removed from the src tree. You may need to 1808 update a your kernel configuration and remove relevant entries. 1809 181020080509: 1811 I have checked in code to support multiple routing tables. 1812 See the man pages setfib(1) and setfib(2). 1813 This is a hopefully backwards compatible version, 1814 but to make use of it you need to compile your kernel 1815 with options ROUTETABLES=2 (or more up to 16). 1816 181720080420: 1818 The 802.11 wireless support was redone to enable multi-bss 1819 operation on devices that are capable. The underlying device 1820 is no longer used directly but instead wlanX devices are 1821 cloned with ifconfig. This requires changes to rc.conf files. 1822 For example, change: 1823 ifconfig_ath0="WPA DHCP" 1824 to 1825 wlans_ath0=wlan0 1826 ifconfig_wlan0="WPA DHCP" 1827 see rc.conf(5) for more details. In addition, mergemaster of 1828 /etc/rc.d is highly recommended. Simultaneous update of userland 1829 and kernel wouldn't hurt either. 1830 1831 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1832 modules were merged into the base wlan module. All references 1833 to these modules (e.g. in kernel config files) must be removed. 1834 183520080408: 1836 psm(4) has gained write(2) support in native operation level. 1837 Arbitrary commands can be written to /dev/psm%d and status can 1838 be read back from it. Therefore, an application is responsible 1839 for status validation and error recovery. It is a no-op in 1840 other operation levels. 1841 184220080312: 1843 Support for KSE threading has been removed from the kernel. To 1844 run legacy applications linked against KSE libmap.conf may 1845 be used. The following libmap.conf may be used to ensure 1846 compatibility with any prior release: 1847 1848 libpthread.so.1 libthr.so.1 1849 libpthread.so.2 libthr.so.2 1850 libkse.so.3 libthr.so.3 1851 185220080301: 1853 The layout of struct vmspace has changed. This affects libkvm 1854 and any executables that link against libkvm and use the 1855 kvm_getprocs() function. In particular, but not exclusively, 1856 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1857 The effects are minimal, but it's advisable to upgrade world 1858 nonetheless. 1859 186020080229: 1861 The latest em driver no longer has support in it for the 1862 82575 adapter, this is now moved to the igb driver. The 1863 split was done to make new features that are incompatible 1864 with older hardware easier to do. 1865 186620080220: 1867 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1868 likewise the kernel option is now GEOM_LINUX_LVM. 1869 187020080211: 1871 The default NFS mount mode has changed from UDP to TCP for 1872 increased reliability. If you rely on (insecurely) NFS 1873 mounting across a firewall you may need to update your 1874 firewall rules. 1875 187620080208: 1877 Belatedly note the addition of m_collapse for compacting 1878 mbuf chains. 1879 188020080126: 1881 The fts(3) structures have been changed to use adequate 1882 integer types for their members and so to be able to cope 1883 with huge file trees. The old fts(3) ABI is preserved 1884 through symbol versioning in libc, so third-party binaries 1885 using fts(3) should still work, although they will not take 1886 advantage of the extended types. At the same time, some 1887 third-party software might fail to build after this change 1888 due to unportable assumptions made in its source code about 1889 fts(3) structure members. Such software should be fixed 1890 by its vendor or, in the worst case, in the ports tree. 1891 FreeBSD_version 800015 marks this change for the unlikely 1892 case that a portable fix is impossible. 1893 189420080123: 1895 To upgrade to -current after this date, you must be running 1896 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1897 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1898 189920071128: 1900 The ADAPTIVE_GIANT kernel option has been retired because its 1901 functionality is the default now. 1902 190320071118: 1904 The AT keyboard emulation of sunkbd(4) has been turned on 1905 by default. In order to make the special symbols of the Sun 1906 keyboards driven by sunkbd(4) work under X these now have 1907 to be configured the same way as Sun USB keyboards driven 1908 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1909 1910 Option "XkbLayout" "us" 1911 Option "XkbRules" "xorg" 1912 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1913 191420071024: 1915 It has been decided that it is desirable to provide ABI 1916 backwards compatibility to the FreeBSD 4/5/6 versions of the 1917 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1918 broken with the introduction of PCI domain support (see the 1919 20070930 entry). Unfortunately, this required the ABI of 1920 PCIOCGETCONF to be broken again in order to be able to 1921 provide backwards compatibility to the old version of that 1922 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1923 again. As for prominent ports this affects neither pciutils 1924 nor xorg-server this time, the hal port needs to be rebuilt 1925 however. 1926 192720071020: 1928 The misnamed kthread_create() and friends have been renamed 1929 to kproc_create() etc. Many of the callers already 1930 used kproc_start().. 1931 I will return kthread_create() and friends in a while 1932 with implementations that actually create threads, not procs. 1933 Renaming corresponds with version 800002. 1934 193520071010: 1936 RELENG_7 branched. 1937 1938COMMON ITEMS: 1939 1940 General Notes 1941 ------------- 1942 Avoid using make -j when upgrading. While generally safe, there are 1943 sometimes problems using -j to upgrade. If your upgrade fails with 1944 -j, please try again without -j. From time to time in the past there 1945 have been problems using -j with buildworld and/or installworld. This 1946 is especially true when upgrading between "distant" versions (eg one 1947 that cross a major release boundary or several minor releases, or when 1948 several months have passed on the -current branch). 1949 1950 Sometimes, obscure build problems are the result of environment 1951 poisoning. This can happen because the make utility reads its 1952 environment when searching for values for global variables. To run 1953 your build attempts in an "environmental clean room", prefix all make 1954 commands with 'env -i '. See the env(1) manual page for more details. 1955 1956 When upgrading from one major version to another it is generally best 1957 to upgrade to the latest code in the currently installed branch first, 1958 then do an upgrade to the new branch. This is the best-tested upgrade 1959 path, and has the highest probability of being successful. Please try 1960 this approach before reporting problems with a major version upgrade. 1961 1962 When upgrading a live system, having a root shell around before 1963 installing anything can help undo problems. Not having a root shell 1964 around can lead to problems if pam has changed too much from your 1965 starting point to allow continued authentication after the upgrade. 1966 1967 ZFS notes 1968 --------- 1969 When upgrading the boot ZFS pool to a new version, always follow 1970 these two steps: 1971 1972 1.) recompile and reinstall the ZFS boot loader and boot block 1973 (this is part of "make buildworld" and "make installworld") 1974 1975 2.) update the ZFS boot block on your boot drive 1976 1977 The following example updates the ZFS boot block on the first 1978 partition (freebsd-boot) of a GPT partitioned drive ad0: 1979 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1980 1981 Non-boot pools do not need these updates. 1982 1983 To build a kernel 1984 ----------------- 1985 If you are updating from a prior version of FreeBSD (even one just 1986 a few days old), you should follow this procedure. It is the most 1987 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1988 1989 make kernel-toolchain 1990 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1991 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1992 1993 To test a kernel once 1994 --------------------- 1995 If you just want to boot a kernel once (because you are not sure 1996 if it works, or if you want to boot a known bad kernel to provide 1997 debugging information) run 1998 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1999 nextboot -k testkernel 2000 2001 To just build a kernel when you know that it won't mess you up 2002 -------------------------------------------------------------- 2003 This assumes you are already running a CURRENT system. Replace 2004 ${arch} with the architecture of your machine (e.g. "i386", 2005 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2006 2007 cd src/sys/${arch}/conf 2008 config KERNEL_NAME_HERE 2009 cd ../compile/KERNEL_NAME_HERE 2010 make depend 2011 make 2012 make install 2013 2014 If this fails, go to the "To build a kernel" section. 2015 2016 To rebuild everything and install it on the current system. 2017 ----------------------------------------------------------- 2018 # Note: sometimes if you are running current you gotta do more than 2019 # is listed here if you are upgrading from a really old current. 2020 2021 <make sure you have good level 0 dumps> 2022 make buildworld 2023 make kernel KERNCONF=YOUR_KERNEL_HERE 2024 [1] 2025 <reboot in single user> [3] 2026 mergemaster -p [5] 2027 make installworld 2028 mergemaster -i [4] 2029 make delete-old [6] 2030 <reboot> 2031 2032 To cross-install current onto a separate partition 2033 -------------------------------------------------- 2034 # In this approach we use a separate partition to hold 2035 # current's root, 'usr', and 'var' directories. A partition 2036 # holding "/", "/usr" and "/var" should be about 2GB in 2037 # size. 2038 2039 <make sure you have good level 0 dumps> 2040 <boot into -stable> 2041 make buildworld 2042 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2043 <maybe newfs current's root partition> 2044 <mount current's root partition on directory ${CURRENT_ROOT}> 2045 make installworld DESTDIR=${CURRENT_ROOT} 2046 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2047 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2048 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2049 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2050 <reboot into current> 2051 <do a "native" rebuild/install as described in the previous section> 2052 <maybe install compatibility libraries from ports/misc/compat*> 2053 <reboot> 2054 2055 2056 To upgrade in-place from stable to current 2057 ---------------------------------------------- 2058 <make sure you have good level 0 dumps> 2059 make buildworld [9] 2060 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2061 [1] 2062 <reboot in single user> [3] 2063 mergemaster -p [5] 2064 make installworld 2065 mergemaster -i [4] 2066 make delete-old [6] 2067 <reboot> 2068 2069 Make sure that you've read the UPDATING file to understand the 2070 tweaks to various things you need. At this point in the life 2071 cycle of current, things change often and you are on your own 2072 to cope. The defaults can also change, so please read ALL of 2073 the UPDATING entries. 2074 2075 Also, if you are tracking -current, you must be subscribed to 2076 freebsd-current@freebsd.org. Make sure that before you update 2077 your sources that you have read and understood all the recent 2078 messages there. If in doubt, please track -stable which has 2079 much fewer pitfalls. 2080 2081 [1] If you have third party modules, such as vmware, you 2082 should disable them at this point so they don't crash your 2083 system on reboot. 2084 2085 [3] From the bootblocks, boot -s, and then do 2086 fsck -p 2087 mount -u / 2088 mount -a 2089 cd src 2090 adjkerntz -i # if CMOS is wall time 2091 Also, when doing a major release upgrade, it is required that 2092 you boot into single user mode to do the installworld. 2093 2094 [4] Note: This step is non-optional. Failure to do this step 2095 can result in a significant reduction in the functionality of the 2096 system. Attempting to do it by hand is not recommended and those 2097 that pursue this avenue should read this file carefully, as well 2098 as the archives of freebsd-current and freebsd-hackers mailing lists 2099 for potential gotchas. The -U option is also useful to consider. 2100 See mergemaster(8) for more information. 2101 2102 [5] Usually this step is a noop. However, from time to time 2103 you may need to do this if you get unknown user in the following 2104 step. It never hurts to do it all the time. You may need to 2105 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2106 install) after the buildworld before this step if you last updated 2107 from current before 20130425 or from -stable before 20130430. 2108 2109 [6] This only deletes old files and directories. Old libraries 2110 can be deleted by "make delete-old-libs", but you have to make 2111 sure that no program is using those libraries anymore. 2112 2113 [8] In order to have a kernel that can run the 4.x binaries needed to 2114 do an installworld, you must include the COMPAT_FREEBSD4 option in 2115 your kernel. Failure to do so may leave you with a system that is 2116 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2117 required to run the 5.x binaries on more recent kernels. And so on 2118 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2119 2120 Make sure that you merge any new devices from GENERIC since the 2121 last time you updated your kernel config file. 2122 2123 [9] When checking out sources, you must include the -P flag to have 2124 cvs prune empty directories. 2125 2126 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2127 "?=" instead of the "=" assignment operator, so that buildworld can 2128 override the CPUTYPE if it needs to. 2129 2130 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2131 not on the command line, or in /etc/make.conf. buildworld will 2132 warn if it is improperly defined. 2133FORMAT: 2134 2135This file contains a list, in reverse chronological order, of major 2136breakages in tracking -current. It is not guaranteed to be a complete 2137list of such breakages, and only contains entries since October 10, 2007. 2138If you need to see UPDATING entries from before that date, you will need 2139to fetch an UPDATING file from an older FreeBSD release. 2140 2141Copyright information: 2142 2143Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2144 2145Redistribution, publication, translation and use, with or without 2146modification, in full or in part, in any form or format of this 2147document are permitted without further permission from the author. 2148 2149THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2150IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2151WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2152DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2153INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2154(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2155SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2156HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2157STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2158IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2159POSSIBILITY OF SUCH DAMAGE. 2160 2161Contact Warner Losh if you have any questions about your use of 2162this document. 2163 2164$FreeBSD: releng/10.1/UPDATING 275854 2014-12-17 06:59:47Z delphij $ 2165