UPDATING revision 271298
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 1920140904: 20 The ofwfb driver, used to provide a graphics console on PowerPC when 21 using vt(4), no longer allows mmap() of all of physical memory. This 22 will prevent Xorg on PowerPC with some ATI graphics cards from 23 initializing properly unless x11-servers/xorg-server is updated to 24 1.12.4_8 or newer. 25 2620140831: 27 The libatf-c and libatf-c++ major versions were downgraded to 0 and 28 1 respectively to match the upstream numbers. They were out of 29 sync because, when they were originally added to FreeBSD, the 30 upstream versions were not respected. These libraries are private 31 and not yet built by default, so renumbering them should be a 32 non-issue. However, unclean source trees will yield broken test 33 programs once the operator executes "make delete-old-libs" after a 34 "make installworld". 35 36 Additionally, the atf-sh binary was made private by moving it into 37 /usr/libexec/. Already-built shell test programs will keep the 38 path to the old binary so they will break after "make delete-old" 39 is run. 40 41 If you are using WITH_TESTS=yes (not the default), wipe the object 42 tree and rebuild from scratch to prevent spurious test failures. 43 This is only needed once: the misnumbered libraries and misplaced 44 binaries have been added to OptionalObsoleteFiles.inc so they will 45 be removed during a clean upgrade. 46 4720140814: 48 The ixgbe tunables now match their sysctl counterparts, for example: 49 hw.ixgbe.enable_aim => hw.ix.enable_aim 50 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 51 5220140801: 53 The NFSv4.1 server committed by r269398 changes the internal 54 function call interfaces used between the NFS and krpc modules. 55 As such, __FreeBSD_version was bumped. 56 5720140729: 58 The default unbound configuration has been modified to address 59 issues with reverse lookups on networks that use private 60 address ranges. If you use the local_unbound service, run 61 "service local_unbound setup" as root to regenerate your 62 configuration, then "service local_unbound reload" to load the 63 new configuration. 64 6520140717: 66 It is no longer necessary to include the dwarf version in your DEBUG 67 options in your kernel config file. The bug that required it to be 68 placed in the config file has bene fixed. DEBUG should now just 69 contain -g. The build system will automatically update things 70 to do the right thing. 71 7220140715: 73 Several ABI breaking changes were merged to CTL and new iSCSI code. 74 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 75 iscsictl need to be rebuilt to work with a new kernel. 76 7720140708: 78 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 79 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 80 which differs from the behaviour controlled by this knob.) 81 8220140608: 83 On i386 and amd64 systems, the onifconsole flag is now set by default 84 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 85 as a login TTY if it is set in the bootloader as an active kernel 86 console. No changes in behavior should result otherwise. To revert to 87 the previous behavior, set ttyu0 to "off" in /etc/ttys. 88 8920140512: 90 Clang and llvm have been upgraded to 3.4.1 release. 91 9220140321: 93 Clang and llvm have been upgraded to 3.4 release. 94 9520140306: 96 If a Makefile in a tests/ directory was auto-generating a Kyuafile 97 instead of providing an explicit one, this would prevent such 98 Makefile from providing its own Kyuafile in the future during 99 NO_CLEAN builds. This has been fixed in the Makefiles but manual 100 intervention is needed to clean an objdir if you use NO_CLEAN: 101 # find /usr/obj -name Kyuafile | xargs rm -f 102 10320140303: 104 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 105 capability mode support. Please note that enabling the feature in 106 kernel is still highly recommended. 107 10820140227: 109 OpenSSH is now built with sandbox support, and will use sandbox as 110 the default privilege separation method. This requires Capsicum 111 capability mode support in kernel. 112 11320140216: 114 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 115 been deprecated and will not be part of FreeBSD 11.0 and later 116 releases. If you use this driver, please consider switching to 117 the nfe(4) driver instead. 118 11920140120: 120 10.0-RELEASE. 121 12220131216: 123 The behavior of gss_pseudo_random() for the krb5 mechanism 124 has changed, for applications requesting a longer random string 125 than produced by the underlying enctype's pseudo-random() function. 126 In particular, the random string produced from a session key of 127 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 128 be different at the 17th octet and later, after this change. 129 The counter used in the PRF+ construction is now encoded as a 130 big-endian integer in accordance with RFC 4402. 131 __FreeBSD_version is bumped to 1000701. 132 13320131108: 134 The WITHOUT_ATF build knob has been removed and its functionality 135 has been subsumed into the more generic WITHOUT_TESTS. If you were 136 using the former to disable the build of the ATF libraries, you 137 should change your settings to use the latter. 138 13920131031: 140 The default version of mtree is nmtree which is obtained from 141 NetBSD. The output is generally the same, but may vary 142 slightly. If you found you need identical output adding 143 "-F freebsd9" to the command line should do the trick. For the 144 time being, the old mtree is available as fmtree. 145 14620131014: 147 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 148 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 149 1.1.4_8 and verify bsdyml not linked in, before running "make 150 delete-old-libs": 151 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 152 or 153 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 154 15520131010: 156 The rc.d/jail script has been updated to support jail(8) 157 configuration file. The "jail_<jname>_*" rc.conf(5) variables 158 for per-jail configuration are automatically converted to 159 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 160 This is transparently backward compatible. See below about some 161 incompatibilities and rc.conf(5) manual page for more details. 162 163 These variables are now deprecated in favor of jail(8) configuration 164 file. One can use "rc.d/jail config <jname>" command to generate 165 a jail(8) configuration file in /var/run/jail.<jname>.conf without 166 running the jail(8) utility. The default pathname of the 167 configuration file is /etc/jail.conf and can be specified by 168 using $jail_conf or $jail_<jname>_conf variables. 169 170 Please note that jail_devfs_ruleset accepts an integer at 171 this moment. Please consider to rewrite the ruleset name 172 with an integer. 173 17420130930: 175 BIND has been removed from the base system. If all you need 176 is a local resolver, simply enable and start the local_unbound 177 service instead. Otherwise, several versions of BIND are 178 available in the ports tree. The dns/bind99 port is one example. 179 180 With this change, nslookup(1) and dig(1) are no longer in the base 181 system. Users should instead use host(1) and drill(1) which are 182 in the base system. Alternatively, nslookup and dig can 183 be obtained by installing the dns/bind-tools port. 184 18520130916: 186 With the addition of unbound(8), a new unbound user is now 187 required during installworld. "mergemaster -p" can be used to 188 add the user prior to installworld, as documented in the handbook. 189 19020130911: 191 OpenSSH is now built with DNSSEC support, and will by default 192 silently trust signed SSHFP records. This can be controlled with 193 the VerifyHostKeyDNS client configuration setting. DNSSEC support 194 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 195 19620130906: 197 The GNU Compiler Collection and C++ standard library (libstdc++) 198 are no longer built by default on platforms where clang is the system 199 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 200 options in src.conf. 201 20220130905: 203 The PROCDESC kernel option is now part of the GENERIC kernel 204 configuration and is required for the rwhod(8) to work. 205 If you are using custom kernel configuration, you should include 206 'options PROCDESC'. 207 20820130905: 209 The API and ABI related to the Capsicum framework was modified 210 in backward incompatible way. The userland libraries and programs 211 have to be recompiled to work with the new kernel. This includes the 212 following libraries and programs, but the whole buildworld is 213 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 214 kdump, procstat, rwho, rwhod, uniq. 215 21620130903: 217 AES-NI intrinsic support has been added to gcc. The AES-NI module 218 has been updated to use this support. A new gcc is required to build 219 the aesni module on both i386 and amd64. 220 22120130821: 222 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 223 Thus "device padlock_rng" and "device rdrand_rng" should be 224 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 225 22620130813: 227 WITH_ICONV has been split into two feature sets. WITH_ICONV now 228 enables just the iconv* functionality and is now on by default. 229 WITH_LIBICONV_COMPAT enables the libiconv api and link time 230 compatability. Set WITHOUT_ICONV to build the old way. 231 If you have been using WITH_ICONV before, you will very likely 232 need to turn on WITH_LIBICONV_COMPAT. 233 23420130806: 235 INVARIANTS option now enables DEBUG for code with OpenSolaris and 236 Illumos origin, including ZFS. If you have INVARIANTS in your 237 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 238 explicitly. 239 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 240 locks if WITNESS option was set. Because that generated a lot of 241 witness(9) reports and all of them were believed to be false 242 positives, this is no longer done. New option OPENSOLARIS_WITNESS 243 can be used to achieve the previous behavior. 244 24520130806: 246 Timer values in IPv6 data structures now use time_uptime instead 247 of time_second. Although this is not a user-visible functional 248 change, userland utilities which directly use them---ndp(8), 249 rtadvd(8), and rtsold(8) in the base system---need to be updated 250 to r253970 or later. 251 25220130802: 253 find -delete can now delete the pathnames given as arguments, 254 instead of only files found below them or if the pathname did 255 not contain any slashes. Formerly, the following error message 256 would result: 257 258 find: -delete: <path>: relative path potentially not safe 259 260 Deleting the pathnames given as arguments can be prevented 261 without error messages using -mindepth 1 or by changing 262 directory and passing "." as argument to find. This works in the 263 old as well as the new version of find. 264 26520130726: 266 Behavior of devfs rules path matching has been changed. 267 Pattern is now always matched against fully qualified devfs 268 path and slash characters must be explicitly matched by 269 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 270 subdirectories must be reviewed. 271 27220130716: 273 The default ARM ABI has changed to the ARM EABI. The old ABI is 274 incompatible with the ARM EABI and all programs and modules will 275 need to be rebuilt to work with a new kernel. 276 277 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 278 279 NOTE: Support for the old ABI will be removed in the future and 280 users are advised to upgrade. 281 28220130709: 283 pkg_install has been disconnected from the build if you really need it 284 you should add WITH_PKGTOOLS in your src.conf(5). 285 28620130709: 287 Most of network statistics structures were changed to be able 288 keep 64-bits counters. Thus all tools, that work with networking 289 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 290 29120130629: 292 Fix targets that run multiple make's to use && rather than ; 293 so that subsequent steps depend on success of previous. 294 295 NOTE: if building 'universe' with -j* on stable/8 or stable/9 296 it would be better to start the build using bmake, to avoid 297 overloading the machine. 298 29920130618: 300 Fix a bug that allowed a tracing process (e.g. gdb) to write 301 to a memory-mapped file in the traced process's address space 302 even if neither the traced process nor the tracing process had 303 write access to that file. 304 30520130615: 306 CVS has been removed from the base system. An exact copy 307 of the code is available from the devel/cvs port. 308 30920130613: 310 Some people report the following error after the switch to bmake: 311 312 make: illegal option -- J 313 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 314 ... 315 *** [buildworld] Error code 2 316 317 this likely due to an old instance of make in 318 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 319 which src/Makefile will use that blindly, if it exists, so if 320 you see the above error: 321 322 rm -rf `make -V MAKEPATH` 323 324 should resolve it. 325 32620130516: 327 Use bmake by default. 328 Whereas before one could choose to build with bmake via 329 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 330 make. The goal is to remove these knobs for 10-RELEASE. 331 332 It is worth noting that bmake (like gmake) treats the command 333 line as the unit of failure, rather than statements within the 334 command line. Thus '(cd some/where && dosomething)' is safer 335 than 'cd some/where; dosomething'. The '()' allows consistent 336 behavior in parallel build. 337 33820130429: 339 Fix a bug that allows NFS clients to issue READDIR on files. 340 34120130426: 342 The WITHOUT_IDEA option has been removed because 343 the IDEA patent expired. 344 34520130426: 346 The sysctl which controls TRIM support under ZFS has been renamed 347 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 348 enabled by default. 349 35020130425: 351 The mergemaster command now uses the default MAKEOBJDIRPREFIX 352 rather than creating it's own in the temporary directory in 353 order allow access to bootstrapped versions of tools such as 354 install and mtree. When upgrading from version of FreeBSD where 355 the install command does not support -l, you will need to 356 install a new mergemaster command if mergemaster -p is required. 357 This can be accomplished with the command (cd src/usr.sbin/mergemaster 358 && make install). 359 36020130404: 361 Legacy ATA stack, disabled and replaced by new CAM-based one since 362 FreeBSD 9.0, completely removed from the sources. Kernel modules 363 atadisk and atapi*, user-level tools atacontrol and burncd are 364 removed. Kernel option `options ATA_CAM` is now permanently enabled 365 and removed. 366 36720130319: 368 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 369 and socketpair(2). Software, in particular Kerberos, may 370 automatically detect and use these during building. The resulting 371 binaries will not work on older kernels. 372 37320130308: 374 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 375 information, see the respective 20130304 entry). 376 37720130304: 378 Recent commits to callout(9) changed the size of struct callout, 379 so the KBI is probably heavily disturbed. Also, some functions 380 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 381 by macros. Every kernel module using it won't load, so rebuild 382 is requested. 383 384 The ctl device has been re-enabled in GENERIC for i386 and amd64, 385 but does not initialize by default (because of the new CTL_DISABLE 386 option) to save memory. To re-enable it, remove the CTL_DISABLE 387 option from the kernel config file or set kern.cam.ctl.disable=0 388 in /boot/loader.conf. 389 39020130301: 391 The ctl device has been disabled in GENERIC for i386 and amd64. 392 This was done due to the extra memory being allocated at system 393 initialisation time by the ctl driver which was only used if 394 a CAM target device was created. This makes a FreeBSD system 395 unusable on 128MB or less of RAM. 396 39720130208: 398 A new compression method (lz4) has been merged to -HEAD. Please 399 refer to zpool-features(7) for more information. 400 401 Please refer to the "ZFS notes" section of this file for information 402 on upgrading boot ZFS pools. 403 40420130129: 405 A BSD-licensed patch(1) variant has been added and is installed 406 as bsdpatch, being the GNU version the default patch. 407 To inverse the logic and use the BSD-licensed one as default, 408 while having the GNU version installed as gnupatch, rebuild 409 and install world with the WITH_BSD_PATCH knob set. 410 41120130121: 412 Due to the use of the new -l option to install(1) during build 413 and install, you must take care not to directly set the INSTALL 414 make variable in your /etc/make.conf, /etc/src.conf, or on the 415 command line. If you wish to use the -C flag for all installs 416 you may be able to add INSTALL+=-C to /etc/make.conf or 417 /etc/src.conf. 418 41920130118: 420 The install(1) option -M has changed meaning and now takes an 421 argument that is a file or path to append logs to. In the 422 unlikely event that -M was the last option on the command line 423 and the command line contained at least two files and a target 424 directory the first file will have logs appended to it. The -M 425 option served little practical purpose in the last decade so its 426 use is expected to be extremely rare. 427 42820121223: 429 After switching to Clang as the default compiler some users of ZFS 430 on i386 systems started to experience stack overflow kernel panics. 431 Please consider using 'options KSTACK_PAGES=4' in such configurations. 432 43320121222: 434 GEOM_LABEL now mangles label names read from file system metadata. 435 Mangling affect labels containing spaces, non-printable characters, 436 '%' or '"'. Device names in /etc/fstab and other places may need to 437 be updated. 438 43920121217: 440 By default, only the 10 most recent kernel dumps will be saved. To 441 restore the previous behaviour (no limit on the number of kernel dumps 442 stored in the dump directory) add the following line to /etc/rc.conf: 443 444 savecore_flags="" 445 44620121201: 447 With the addition of auditdistd(8), a new auditdistd user is now 448 required during installworld. "mergemaster -p" can be used to 449 add the user prior to installworld, as documented in the handbook. 450 45120121117: 452 The sin6_scope_id member variable in struct sockaddr_in6 is now 453 filled by the kernel before passing the structure to the userland via 454 sysctl or routing socket. This means the KAME-specific embedded scope 455 id in sin6_addr.s6_addr[2] is always cleared in userland application. 456 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 457 __FreeBSD_version is bumped to 1000025. 458 45920121105: 460 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 461 This means that the world and kernel will be compiled with clang 462 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 463 and /usr/bin/cpp. To disable this behavior and revert to building 464 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 465 of current may need to bootstrap WITHOUT_CLANG first if the clang 466 build fails (its compatibility window doesn't extend to the 9 stable 467 branch point). 468 46920121102: 470 The IPFIREWALL_FORWARD kernel option has been removed. Its 471 functionality now turned on by default. 472 47320121023: 474 The ZERO_COPY_SOCKET kernel option has been removed and 475 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 476 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 477 mechanism which is not safe and may result in kernel crashes. 478 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 479 driver supports disposeable external page sized mbuf storage. 480 Proper replacements for both zero-copy mechanisms are under 481 consideration and will eventually lead to complete removal 482 of the two kernel options. 483 48420121023: 485 The IPv4 network stack has been converted to network byte 486 order. The following modules need to be recompiled together 487 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 488 pf(4), ipfw(4), ng_ipfw(4), stf(4). 489 49020121022: 491 Support for non-MPSAFE filesystems was removed from VFS. The 492 VFS_VERSION was bumped, all filesystem modules shall be 493 recompiled. 494 49520121018: 496 All the non-MPSAFE filesystems have been disconnected from 497 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 498 portalfs, smbfs, xfs. 499 50020121016: 501 The interface cloning API and ABI has changed. The following 502 modules need to be recompiled together with kernel: 503 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 504 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 505 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 506 50720121015: 508 The sdhci driver was split in two parts: sdhci (generic SD Host 509 Controller logic) and sdhci_pci (actual hardware driver). 510 No kernel config modifications are required, but if you 511 load sdhc as a module you must switch to sdhci_pci instead. 512 51320121014: 514 Import the FUSE kernel and userland support into base system. 515 51620121013: 517 The GNU sort(1) program has been removed since the BSD-licensed 518 sort(1) has been the default for quite some time and no serious 519 problems have been reported. The corresponding WITH_GNU_SORT 520 knob has also gone. 521 52220121006: 523 The pfil(9) API/ABI for AF_INET family has been changed. Packet 524 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 525 with new kernel. 526 52720121001: 528 The net80211(4) ABI has been changed to allow for improved driver 529 PS-POLL and power-save support. All wireless drivers need to be 530 recompiled to work with the new kernel. 531 53220120913: 533 The random(4) support for the VIA hardware random number 534 generator (`PADLOCK') is no longer enabled unconditionally. 535 Add the padlock_rng device in the custom kernel config if 536 needed. The GENERIC kernels on i386 and amd64 do include the 537 device, so the change only affects the custom kernel 538 configurations. 539 54020120908: 541 The pf(4) packet filter ABI has been changed. pfctl(8) and 542 snmp_pf module need to be recompiled to work with new kernel. 543 54420120828: 545 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 546 to -HEAD. Pools that have empty_bpobj in active state can not be 547 imported read-write with ZFS implementations that do not support 548 this feature. For more information read the zpool-features(5) 549 manual page. 550 55120120727: 552 The sparc64 ZFS loader has been changed to no longer try to auto- 553 detect ZFS providers based on diskN aliases but now requires these 554 to be explicitly listed in the OFW boot-device environment variable. 555 55620120712: 557 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 558 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 559 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 560 56120120712: 562 The following sysctls and tunables have been renamed for consistency 563 with other variables: 564 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 565 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 566 56720120628: 568 The sort utility has been replaced with BSD sort. For now, GNU sort 569 is also available as "gnusort" or the default can be set back to 570 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 571 installed as "bsdsort". 572 57320120611: 574 A new version of ZFS (pool version 5000) has been merged to -HEAD. 575 Starting with this version the old system of ZFS pool versioning 576 is superseded by "feature flags". This concept enables forward 577 compatibility against certain future changes in functionality of ZFS 578 pools. The first read-only compatible "feature flag" for ZFS pools 579 is named "com.delphix:async_destroy". For more information 580 read the new zpool-features(5) manual page. 581 Please refer to the "ZFS notes" section of this file for information 582 on upgrading boot ZFS pools. 583 58420120417: 585 The malloc(3) implementation embedded in libc now uses sources imported 586 as contrib/jemalloc. The most disruptive API change is to 587 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 588 delete it prior to installworld, and optionally re-create it using the 589 new format after rebooting. See malloc.conf(5) for details 590 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 591 NAMESPACE section). 592 59320120328: 594 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 595 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 596 now spelled mips. This is to aid compatibility with third-party 597 software that expects this naming scheme in uname(3). Little-endian 598 settings are unchanged. If you are updating a big-endian mips64 machine 599 from before this change, you may need to set MACHINE_ARCH=mips64 in 600 your environment before the new build system will recognize your machine. 601 60220120306: 603 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 604 platforms. 605 60620120229: 607 Now unix domain sockets behave "as expected" on nullfs(5). Previously 608 nullfs(5) did not pass through all behaviours to the underlying layer, 609 as a result if we bound to a socket on the lower layer we could connect 610 only to the lower path; if we bound to the upper layer we could connect 611 only to the upper path. The new behavior is one can connect to both the 612 lower and the upper paths regardless what layer path one binds to. 613 61420120211: 615 The getifaddrs upgrade path broken with 20111215 has been restored. 616 If you have upgraded in between 20111215 and 20120209 you need to 617 recompile libc again with your kernel. You still need to recompile 618 world to be able to configure CARP but this restriction already 619 comes from 20111215. 620 62120120114: 622 The set_rcvar() function has been removed from /etc/rc.subr. All 623 base and ports rc.d scripts have been updated, so if you have a 624 port installed with a script in /usr/local/etc/rc.d you can either 625 hand-edit the rcvar= line, or reinstall the port. 626 627 An easy way to handle the mass-update of /etc/rc.d: 628 rm /etc/rc.d/* && mergemaster -i 629 63020120109: 631 panic(9) now stops other CPUs in the SMP systems, disables interrupts 632 on the current CPU and prevents other threads from running. 633 This behavior can be reverted using the kern.stop_scheduler_on_panic 634 tunable/sysctl. 635 The new behavior can be incompatible with kern.sync_on_panic. 636 63720111215: 638 The carp(4) facility has been changed significantly. Configuration 639 of the CARP protocol via ifconfig(8) has changed, as well as format 640 of CARP events submitted to devd(8) has changed. See manual pages 641 for more information. The arpbalance feature of carp(4) is currently 642 not supported anymore. 643 644 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 645 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 646 need to be recompiled. 647 64820111122: 649 The acpi_wmi(4) status device /dev/wmistat has been renamed to 650 /dev/wmistat0. 651 65220111108: 653 The option VFS_ALLOW_NONMPSAFE option has been added in order to 654 explicitely support non-MPSAFE filesystems. 655 It is on by default for all supported platform at this present 656 time. 657 65820111101: 659 The broken amd(4) driver has been replaced with esp(4) in the amd64, 660 i386 and pc98 GENERIC kernel configuration files. 661 66220110930: 663 sysinstall has been removed 664 66520110923: 666 The stable/9 branch created in subversion. This corresponds to the 667 RELENG_9 branch in CVS. 668 66920110913: 670 This commit modifies vfs_register() so that it uses a hash 671 calculation to set vfc_typenum, which is enabled by default. 672 The first time a system is booted after this change, the 673 vfc_typenum values will change for all file systems. The 674 main effect of this is a change to the NFS server file handles 675 for file systems that use vfc_typenum in their fsid, such as ZFS. 676 It will, however, prevent vfc_typenum from changing when file 677 systems are loaded in a different order for subsequent reboots. 678 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 679 until you are ready to remount all NFS clients after a reboot. 680 68120110828: 682 Bump the shared library version numbers for libraries that 683 do not use symbol versioning, have changed the ABI compared 684 to stable/8 and which shared library version was not bumped. 685 Done as part of 9.0-RELEASE cycle. 686 68720110815: 688 During the merge of Capsicum features, the fget(9) KPI was modified. 689 This may require the rebuilding of out-of-tree device drivers -- 690 issues have been reported specifically with the nVidia device driver. 691 __FreeBSD_version is bumped to 900041. 692 693 Also, there is a period between 20110811 and 20110814 where the 694 special devices /dev/{stdin,stdout,stderr} did not work correctly. 695 Building world from a kernel during that window may not work. 696 69720110628: 698 The packet filter (pf) code has been updated to OpenBSD 4.5. 699 You need to update userland tools to be in sync with kernel. 700 This update breaks backward compatibility with earlier pfsync(4) 701 versions. Care must be taken when updating redundant firewall setups. 702 70320110608: 704 The following sysctls and tunables are retired on x86 platforms: 705 machdep.hlt_cpus 706 machdep.hlt_logical_cpus 707 The following sysctl is retired: 708 machdep.hyperthreading_allowed 709 The sysctls were supposed to provide a way to dynamically offline and 710 online selected CPUs on x86 platforms, but the implementation has not 711 been reliable especially with SCHED_ULE scheduler. 712 machdep.hyperthreading_allowed tunable is still available to ignore 713 hyperthreading CPUs at OS level. 714 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 715 where X is an APIC ID of a CPU. Be advised, though, that disabling 716 CPUs in non-uniform fashion will result in non-uniform topology and 717 may lead to sub-optimal system performance with SCHED_ULE, which is 718 a default scheduler. 719 72020110607: 721 cpumask_t type is retired and cpuset_t is used in order to describe 722 a mask of CPUs. 723 72420110531: 725 Changes to ifconfig(8) for dynamic address family detection mandate 726 that you are running a kernel of 20110525 or later. Make sure to 727 follow the update procedure to boot a new kernel before installing 728 world. 729 73020110513: 731 Support for sun4v architecture is officially dropped 732 73320110503: 734 Several KPI breaking changes have been committed to the mii(4) layer, 735 the PHY drivers and consequently some Ethernet drivers using mii(4). 736 This means that miibus.ko and the modules of the affected Ethernet 737 drivers need to be recompiled. 738 739 Note to kernel developers: Given that the OUI bit reversion problem 740 was fixed as part of these changes all mii(4) commits related to OUIs, 741 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 742 handling, no longer can be merged verbatim to stable/8 and previous 743 branches. 744 74520110430: 746 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 747 into their kernel configurations along with 'device pci'. 748 74920110427: 750 The default NFS client is now the new NFS client, so fstype "newnfs" 751 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 752 Although mounts via fstype "nfs" will usually work without userland 753 changes, it is recommended that the mount(8) and mount_nfs(8) 754 commands be rebuilt from sources and that a link to mount_nfs called 755 mount_oldnfs be created. The new client is compiled into the 756 kernel with "options NFSCL" and this is needed for diskless root 757 file systems. The GENERIC kernel configs have been changed to use 758 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 759 To use the regular/old client, you can "mount -t oldnfs ...". For 760 a diskless root file system, you must also include a line like: 761 762 vfs.root.mountfrom="oldnfs:" 763 764 in the boot/loader.conf on the root fs on the NFS server to make 765 a diskless root fs use the old client. 766 76720110424: 768 The GENERIC kernels for all architectures now default to the new 769 CAM-based ATA stack. It means that all legacy ATA drivers were 770 removed and replaced by respective CAM drivers. If you are using 771 ATA device names in /etc/fstab or other places, make sure to update 772 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 773 where 'Y's are the sequential numbers starting from zero for each type 774 in order of detection, unless configured otherwise with tunables, 775 see cam(4)). There will be symbolic links created in /dev/ to map 776 old adX devices to the respective adaY. They should provide basic 777 compatibility for file systems mounting in most cases, but they do 778 not support old user-level APIs and do not have respective providers 779 in GEOM. Consider using updated management tools with new device names. 780 781 It is possible to load devices ahci, ata, siis and mvs as modules, 782 but option ATA_CAM should remain in kernel configuration to make ata 783 module work as CAM driver supporting legacy ATA controllers. Device ata 784 still can be used in modular fashion (atacore + ...). Modules atadisk 785 and atapi* are not used and won't affect operation in ATA_CAM mode. 786 Note that to use CAM-based ATA kernel should include CAM devices 787 scbus, pass, da (or explicitly ada), cd and optionally others. All of 788 them are parts of the cam module. 789 790 ataraid(4) functionality is now supported by the RAID GEOM class. 791 To use it you can load geom_raid kernel module and use graid(8) tool 792 for management. Instead of /dev/arX device names, use /dev/raid/rX. 793 794 No kernel config options or code have been removed, so if a problem 795 arises, please report it and optionally revert to the old ATA stack. 796 In order to do it you can remove from the kernel config: 797 options ATA_CAM 798 device ahci 799 device mvs 800 device siis 801 , and instead add back: 802 device atadisk # ATA disk drives 803 device ataraid # ATA RAID drives 804 device atapicd # ATAPI CDROM drives 805 device atapifd # ATAPI floppy drives 806 device atapist # ATAPI tape drives 807 80820110423: 809 The default NFS server has been changed to the new server, which 810 was referred to as the experimental server. If you need to switch 811 back to the old NFS server, you must now put the "-o" option on 812 both the mountd and nfsd commands. This can be done using the 813 mountd_flags and nfs_server_flags rc.conf variables until an 814 update to the rc scripts is committed, which is coming soon. 815 81620110418: 817 The GNU Objective-C runtime library (libobjc), and other Objective-C 818 related components have been removed from the base system. If you 819 require an Objective-C library, please use one of the available ports. 820 82120110331: 822 ath(4) has been split into bus- and device- modules. if_ath contains 823 the HAL, the TX rate control and the network device code. if_ath_pci 824 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 825 contains the AHB glue. Users need to load both if_ath_pci and if_ath 826 in order to use ath on everything else. 827 828 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 829 need to load if_ath and if_ath_pci for ath(4) operation. 830 83120110314: 832 As part of the replacement of sysinstall, the process of building 833 release media has changed significantly. For details, please re-read 834 release(7), which has been updated to reflect the new build process. 835 83620110218: 837 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 838 is the last available version under GPLv2. It brings a number of new 839 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 840 4.1 and SSE 4.2), better support for powerpc64, a number of new 841 directives, and lots of other small improvements. See the ChangeLog 842 file in contrib/binutils for the full details. 843 84420110218: 845 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 846 compliant, and will now use half of hash for authentication. 847 This will break interoperability with all stacks (including all 848 actual FreeBSD versions) who implement 849 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 850 authentication). 851 The only workaround with such peers is to use another HMAC 852 algorithm for IPsec ("phase 2") authentication. 853 85420110207: 855 Remove the uio_yield prototype and symbol. This function has 856 been misnamed since it was introduced and should not be 857 globally exposed with this name. The equivalent functionality 858 is now available using kern_yield(curthread->td_user_pri). 859 The function remains undocumented. 860 86120110112: 862 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 863 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 864 for scalar sysctls is defined but disabled. Code that needs 865 UQUAD to pass the type checking that must compile on older 866 systems where the define is not present can check against 867 __FreeBSD_version >= 900030. 868 869 The system dialog(1) has been replaced with a new version previously 870 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 871 with the previous version, but the libdialog associated with it has 872 a largely incompatible API. As such, the original version of libdialog 873 will be kept temporarily as libodialog, until its base system consumers 874 are replaced or updated. Bump __FreeBSD_version to 900030. 875 87620110103: 877 If you are trying to run make universe on a -stable system, and you get 878 the following warning: 879 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 880 unknown. config(8) likely too old." 881 or something similar to it, then you must upgrade your -stable system 882 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 883 stable/8) or build the config from the latest stable/8 branch and 884 install it on your system. 885 886 Prior to this date, building a current universe on 8-stable system from 887 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 888 error in the first kernel build phase. A new config on those old 889 systems will fix that problem for older versions of -current. 890 89120101228: 892 The TCP stack has been modified to allow Khelp modules to interact with 893 it via helper hook points and store per-connection data in the TCP 894 control block. Bump __FreeBSD_version to 900029. User space tools that 895 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 896 be recompiled. 897 89820101114: 899 Generic IEEE 802.3 annex 31B full duplex flow control support has been 900 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 901 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 902 to take advantage of it instead of using custom implementations. This 903 means that these drivers now no longer unconditionally advertise 904 support for flow control but only do so if flow control is a selected 905 media option. This was implemented in the generic support that way in 906 order to allow flow control to be switched on and off via ifconfig(8) 907 with the PHY specific default to typically off in order to protect 908 from unwanted effects. Consequently, if you used flow control with 909 one of the above mentioned drivers you now need to explicitly enable 910 it, for example via: 911 ifconfig bge0 media auto mediaopt flowcontrol 912 913 Along with the above mentioned changes generic support for setting 914 1000baseT master mode also has been added and brgphy(4), ciphy(4), 915 e1000phy(4) as well as ip1000phy(4) have been converted to take 916 advantage of it. This means that these drivers now no longer take the 917 link0 parameter for selecting master mode but the master media option 918 has to be used instead, for example like in the following: 919 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 920 921 Selection of master mode now is also available with all other PHY 922 drivers supporting 1000baseT. 923 92420101111: 925 The TCP stack has received a significant update to add support for 926 modularised congestion control and generally improve the clarity of 927 congestion control decisions. Bump __FreeBSD_version to 900025. User 928 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 929 sockstat) need to be recompiled. 930 93120101002: 932 The man(1) utility has been replaced by a new version that no longer 933 uses /etc/manpath.config. Please consult man.conf(5) for how to 934 migrate local entries to the new format. 935 93620100928: 937 The copyright strings printed by login(1) and sshd(8) at the time of a 938 new connection have been removed to follow other operating systems and 939 upstream sshd. 940 94120100915: 942 A workaround for a fixed ld bug has been removed in kernel code, 943 so make sure that your system ld is built from sources after 944 revision 210245 from 2010-07-19 (r211583 if building head kernel 945 on stable/8, r211584 for stable/7; both from 2010-08-21). 946 A symptom of incorrect ld version is different addresses for 947 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 948 94920100913: 950 The $ipv6_prefer variable in rc.conf(5) has been split into 951 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 952 953 The $ip6addrctl_policy is a variable to choose a pre-defined 954 address selection policy set by ip6addrctl(8). A value 955 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 956 default is "AUTO". 957 958 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 959 flag (see an entry of 20090926) is set on an interface with no 960 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 961 security reason. If you want IPv6 link-local address on all 962 interfaces by default, set this to "YES". 963 964 The old ipv6_prefer="YES" is equivalent to 965 ipv6_activate_all_interfaces="YES" and 966 ip6addrctl_policy="ipv6_prefer". 967 96820100913: 969 DTrace has grown support for userland tracing. Due to this, DTrace is 970 now i386 and amd64 only. 971 dtruss(1) is now installed by default on those systems and a new 972 kernel module is needed for userland tracing: fasttrap. 973 No changes to your kernel config file are necessary to enable 974 userland tracing, but you might consider adding 'STRIP=' and 975 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 976 to have informative userland stack traces in DTrace (ustack). 977 97820100725: 979 The acpi_aiboost(4) driver has been removed in favor of the new 980 aibs(4) driver. You should update your kernel configuration file. 981 98220100722: 983 BSD grep has been imported to the base system and it is built by 984 default. It is completely BSD licensed, highly GNU-compatible, uses 985 less memory than its GNU counterpart and has a small codebase. 986 However, it is slower than its GNU counterpart, which is mostly 987 noticeable for larger searches, for smaller ones it is measurable 988 but not significant. The reason is complex, the most important factor 989 is that we lack a modern and efficient regex library and GNU 990 overcomes this by optimizing the searches internally. Future work 991 on improving the regex performance is planned, for the meantime, 992 users that need better performance, can build GNU grep instead by 993 setting the WITH_GNU_GREP knob. 994 99520100713: 996 Due to the import of powerpc64 support, all existing powerpc kernel 997 configuration files must be updated with a machine directive like this: 998 machine powerpc powerpc 999 1000 In addition, an updated config(8) is required to build powerpc kernels 1001 after this change. 1002 100320100713: 1004 A new version of ZFS (version 15) has been merged to -HEAD. 1005 This version uses a python library for the following subcommands: 1006 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1007 For full functionality of these commands the following port must 1008 be installed: sysutils/py-zfs 1009 101020100429: 1011 'vm_page's are now hashed by physical address to an array of mutexes. 1012 Currently this is only used to serialize access to hold_count. Over 1013 time the page queue mutex will be peeled away. This changes the size 1014 of pmap on every architecture. And requires all callers of vm_page_hold 1015 and vm_page_unhold to be updated. 1016 101720100402: 1018 WITH_CTF can now be specified in src.conf (not recommended, there 1019 are some problems with static executables), make.conf (would also 1020 affect ports which do not use GNU make and do not override the 1021 compile targets) or in the kernel config (via "makeoptions 1022 WITH_CTF=yes"). 1023 When WITH_CTF was specified there before this was silently ignored, 1024 so make sure that WITH_CTF is not used in places which could lead 1025 to unwanted behavior. 1026 102720100311: 1028 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1029 to allow 32-bit compatibility on non-x86 platforms. All kernel 1030 configurations on amd64 and ia64 platforms using these options must 1031 be modified accordingly. 1032 103320100113: 1034 The utmp user accounting database has been replaced with utmpx, 1035 the user accounting interface standardized by POSIX. 1036 Unfortunately the semantics of utmp and utmpx don't match, 1037 making it practically impossible to support both interfaces. 1038 The user accounting database is used by tools like finger(1), 1039 last(1), talk(1), w(1) and ac(8). 1040 1041 All applications in the base system use utmpx. This means only 1042 local binaries (e.g. from the ports tree) may still use these 1043 utmp database files. These applications must be rebuilt to make 1044 use of utmpx. 1045 1046 After the system has been upgraded, it is safe to remove the old 1047 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1048 assuming their contents is of no importance anymore. Old wtmp 1049 databases can only be used by last(1) and ac(8) after they have 1050 been converted to the new format using wtmpcvt(1). 1051 105220100108: 1053 Introduce the kernel thread "deadlock resolver" (which can be enabled 1054 via the DEADLKRES option, see NOTES for more details) and the 1055 sleepq_type() function for sleepqueues. 1056 105720091202: 1058 The rc.firewall and rc.firewall6 were unified, and 1059 rc.firewall6 and rc.d/ip6fw were removed. 1060 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1061 variables are obsoleted. Instead, the following new rc 1062 variables are added to rc.d/ipfw: 1063 1064 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1065 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1066 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1067 1068 The meanings correspond to the relevant IPv4 variables. 1069 107020091125: 1071 8.0-RELEASE. 1072 107320091113: 1074 The default terminal emulation for syscons(4) has been changed 1075 from cons25 to xterm on all platforms except pc98. This means 1076 that the /etc/ttys file needs to be updated to ensure correct 1077 operation of applications on the console. 1078 1079 The terminal emulation style can be toggled per window by using 1080 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1081 options can be used to change the compile-time default back to 1082 cons25. 1083 1084 To prevent graphical artifacts, make sure the TERM environment 1085 variable is set to match the terminal emulation that is being 1086 performed by syscons(4). 1087 108820091109: 1089 The layout of the structure ieee80211req_scan_result has changed. 1090 Applications that require wireless scan results (e.g. ifconfig(8)) 1091 from net80211 need to be recompiled. 1092 1093 Applications such as wpa_supplicant(8) may require a full world 1094 build without using NO_CLEAN in order to get synchronized with the 1095 new structure. 1096 109720091025: 1098 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1099 There's one kernel module for each firmware. Adding "device iwnfw" 1100 to the kernel configuration file means including all three firmware 1101 images inside the kernel. If you want to include just the one for 1102 your wireless card, use the devices iwn4965fw, iwn5000fw or 1103 iwn5150fw. 1104 110520090926: 1106 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1107 into rc.d/netif. The changes are the following: 1108 1109 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1110 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1111 Note that both variables need the "inet6" keyword at the head. 1112 1113 Do not set $ipv6_network_interfaces manually if you do not 1114 understand what you are doing. It is not needed in most cases. 1115 1116 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1117 they are obsolete. 1118 1119 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1120 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1121 1122 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1123 all configured interfaces have "inet6 accept_rtadv" in the 1124 $ifconfig_IF_ipv6. These are for backward compatibility. 1125 1126 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1127 functionality of interfaces with no corresponding 1128 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1129 and the default address selection policy of ip6addrctl(8) 1130 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1131 Note that if you want to configure IPv6 functionality on the 1132 disabled interfaces after boot, first you need to clear the flag by 1133 using ifconfig(8) like: 1134 1135 ifconfig em0 inet6 -ifdisabled 1136 1137 If YES, the default address selection policy is set as 1138 IPv6-preferred. 1139 1140 The default value of $ipv6_prefer is NO. 1141 1142 4. If your system need to receive Router Advertisement messages, 1143 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1144 scripts automatically invoke rtsol(8) when the interface becomes 1145 UP. The Router Advertisement messages are used for SLAAC 1146 (State-Less Address AutoConfiguration). 1147 114820090922: 1149 802.11s D3.03 support was committed. This is incompatible with the 1150 previous code, which was based on D3.0. 1151 115220090912: 1153 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1154 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1155 control whether accepting Router Advertisement messages or not. 1156 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1157 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1158 The ifconfig(8) utility now supports these flags. 1159 116020090910: 1161 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1162 mount(8) and -a option for df(1) to see them. 1163 116420090825: 1165 The old tunable hw.bus.devctl_disable has been superseded by 1166 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1167 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1168 is 1000. 1169 117020090813: 1171 Remove the option STOP_NMI. The default action is now to use NMI only 1172 for KDB via the newly introduced function stop_cpus_hard() and 1173 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1174 117520090803: 1176 The stable/8 branch created in subversion. This corresponds to the 1177 RELENG_8 branch in CVS. 1178 117920090719: 1180 Bump the shared library version numbers for all libraries that do not 1181 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1182 __FreeBSD_version to 800105. 1183 118420090714: 1185 Due to changes in the implementation of virtual network stack support, 1186 all network-related kernel modules must be recompiled. As this change 1187 breaks the ABI, bump __FreeBSD_version to 800104. 1188 118920090713: 1190 The TOE interface to the TCP syncache has been modified to remove 1191 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1192 The cxgb driver is the only TOE consumer affected by this change, and 1193 needs to be recompiled along with the kernel. As this change breaks 1194 the ABI, bump __FreeBSD_version to 800103. 1195 119620090712: 1197 Padding has been added to struct tcpcb, sackhint and tcpstat in 1198 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1199 maintaining the ABI. However, this change breaks the ABI, so bump 1200 __FreeBSD_version to 800102. User space tools that rely on the size of 1201 any of these structs (e.g. sockstat) need to be recompiled. 1202 120320090630: 1204 The NFS_LEGACYRPC option has been removed along with the old kernel 1205 RPC implementation that this option selected. Kernel configurations 1206 may need to be adjusted. 1207 120820090629: 1209 The network interface device nodes at /dev/net/<interface> have been 1210 removed. All ioctl operations can be performed the normal way using 1211 routing sockets. The kqueue functionality can generally be replaced 1212 with routing sockets. 1213 121420090628: 1215 The documentation from the FreeBSD Documentation Project (Handbook, 1216 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1217 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1218 121920090624: 1220 The ABI of various structures related to the SYSV IPC API have been 1221 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1222 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1223 800100. 1224 122520090622: 1226 Layout of struct vnet has changed as routing related variables were 1227 moved to their own Vimage module. Modules need to be recompiled. Bump 1228 __FreeBSD_version to 800099. 1229 123020090619: 1231 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1232 respectively. As long as no more than 16 groups per process are used, 1233 no changes should be visible. When more than 16 groups are used, old 1234 binaries may fail if they call getgroups() or getgrouplist() with 1235 statically sized storage. Recompiling will work around this, but 1236 applications should be modified to use dynamically allocated storage 1237 for group arrays as POSIX.1-2008 does not cap an implementation's 1238 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1239 1240 NFS and portalfs mounts may also be affected as the list of groups is 1241 truncated to 16. Users of NFS who use more than 16 groups, should 1242 take care that negative group permissions are not used on the exported 1243 file systems as they will not be reliable unless a GSSAPI based 1244 authentication method is used. 1245 124620090616: 1247 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1248 option compiles in the support for adaptive spinning for lockmgrs 1249 which want to enable it. The lockinit() function now accepts the flag 1250 LK_ADAPTIVE in order to make the lock object subject to adaptive 1251 spinning when both held in write and read mode. 1252 125320090613: 1254 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1255 changed. User applications that use this ioctl need to be rebuilt. 1256 125720090611: 1258 The layout of struct thread has changed. Kernel and modules need to 1259 be rebuilt. 1260 126120090608: 1262 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1263 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1264 126520090602: 1266 window(1) has been removed from the base system. It can now be 1267 installed from ports. The port is called misc/window. 1268 126920090601: 1270 The way we are storing and accessing `routing table' entries has 1271 changed. Programs reading the FIB, like netstat, need to be 1272 re-compiled. 1273 127420090601: 1275 A new netisr implementation has been added for FreeBSD 8. Network 1276 file system modules, such as igmp, ipdivert, and others, should be 1277 rebuilt. 1278 Bump __FreeBSD_version to 800096. 1279 128020090530: 1281 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1282 more valid. 1283 128420090530: 1285 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1286 Bump __FreeBSD_version to 800094. 1287 128820090529: 1289 Add mnt_xflag field to 'struct mount'. File system modules need to be 1290 rebuilt. 1291 Bump __FreeBSD_version to 800093. 1292 129320090528: 1294 The compiling option ADAPTIVE_SX has been retired while it has been 1295 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1296 The KPI for sx_init_flags() changes as accepting flags: 1297 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1298 been introduced in order to handle the reversed logic. 1299 Bump __FreeBSD_version to 800092. 1300 130120090527: 1302 Add support for hierarchical jails. Remove global securelevel. 1303 Bump __FreeBSD_version to 800091. 1304 130520090523: 1306 The layout of struct vnet_net has changed, therefore modules 1307 need to be rebuilt. 1308 Bump __FreeBSD_version to 800090. 1309 131020090523: 1311 The newly imported zic(8) produces a new format in the output. Please 1312 run tzsetup(8) to install the newly created data to /etc/localtime. 1313 131420090520: 1315 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1316 hw.usb.* and is now consistent again with previous releases. 1317 131820090520: 1319 802.11 monitor mode support was revised and driver api's were changed. 1320 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1321 of DLT_IEEE802_11. No user-visible data structures were changed but 1322 applications that use DLT_IEEE802_11 may require changes. 1323 Bump __FreeBSD_version to 800088. 1324 132520090430: 1326 The layout of the following structs has changed: sysctl_oid, 1327 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1328 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1329 panics may be experienced. World rebuild is required for 1330 correctly checking networking state from userland. 1331 Bump __FreeBSD_version to 800085. 1332 133320090429: 1334 MLDv2 and Source-Specific Multicast (SSM) have been merged 1335 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1336 The implementation of SSM within FreeBSD's IPv6 stack closely 1337 follows the IPv4 implementation. 1338 1339 For kernel developers: 1340 1341 * The most important changes are that the ip6_output() and 1342 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1343 and this lock has been downgraded to a non-recursive mutex. 1344 1345 * As with the changes to the IPv4 stack to support SSM, filtering 1346 of inbound multicast traffic must now be performed by transport 1347 protocols within the IPv6 stack. This does not apply to TCP and 1348 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1349 1350 * The KPIs used by IPv6 multicast are similar to those used by 1351 the IPv4 stack, with the following differences: 1352 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1353 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1354 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1355 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1356 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1357 for MLDv1 have an additional 'timer' argument which is used to 1358 jitter the initial membership report for the solicited-node 1359 multicast membership on-link. 1360 * This is not strictly needed for MLDv2, which already jitters 1361 its report transmissions. However, the 'timer' argument is 1362 preserved in case MLDv1 is active on the interface. 1363 1364 * The KAME linked-list based IPv6 membership implementation has 1365 been refactored to use a vector similar to that used by the IPv4 1366 stack. 1367 Code which maintains a list of its own multicast memberships 1368 internally, e.g. carp, has been updated to reflect the new 1369 semantics. 1370 1371 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1372 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1373 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1374 implementation constraint which needs to be addressed in HEAD. 1375 1376 For application developers: 1377 1378 * The changes are broadly similar to those made for the IPv4 1379 stack. 1380 1381 * The use of IPv4 and IPv6 multicast socket options on the same 1382 socket, using mapped addresses, HAS NOT been tested or supported. 1383 1384 * There are a number of issues with the implementation of various 1385 IPv6 multicast APIs which need to be resolved in the API surface 1386 before the implementation is fully compatible with KAME userland 1387 use, and these are mostly to do with interface index treatment. 1388 1389 * The literature available discusses the use of either the delta / ASM 1390 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1391 using setsourcefilter(3)/getsourcefilter(3). For more information 1392 please refer to RFC 3768, 'Socket Interface Extensions for 1393 Multicast Source Filters'. 1394 1395 * Applications which use the published RFC 3678 APIs should be fine. 1396 1397 For systems administrators: 1398 1399 * The mtest(8) utility has been refactored to support IPv6, in 1400 addition to IPv4. Interface addresses are no longer accepted 1401 as arguments, their names must be used instead. The utility 1402 will map the interface name to its first IPv4 address as 1403 returned by getifaddrs(3). 1404 1405 * The ifmcstat(8) utility has also been updated to print the MLDv2 1406 endpoint state and source filter lists via sysctl(3). 1407 1408 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1409 loopback of IPv6 multicast datagrams by default; it defaults to 1 1410 to preserve the existing behaviour. Disabling multicast loopback is 1411 recommended for optimal system performance. 1412 1413 * The IPv6 MROUTING code has been changed to examine this sysctl 1414 instead of attempting to perform a group lookup before looping 1415 back forwarded datagrams. 1416 1417 Bump __FreeBSD_version to 800084. 1418 141920090422: 1420 Implement low-level Bluetooth HCI API. 1421 Bump __FreeBSD_version to 800083. 1422 142320090419: 1424 The layout of struct malloc_type, used by modules to register new 1425 memory allocation types, has changed. Most modules will need to 1426 be rebuilt or panics may be experienced. 1427 Bump __FreeBSD_version to 800081. 1428 142920090415: 1430 Anticipate overflowing inp_flags - add inp_flags2. 1431 This changes most offsets in inpcb, so checking v4 connection 1432 state will require a world rebuild. 1433 Bump __FreeBSD_version to 800080. 1434 143520090415: 1436 Add an llentry to struct route and struct route_in6. Modules 1437 embedding a struct route will need to be recompiled. 1438 Bump __FreeBSD_version to 800079. 1439 144020090414: 1441 The size of rt_metrics_lite and by extension rtentry has changed. 1442 Networking administration apps will need to be recompiled. 1443 The route command now supports show as an alias for get, weighting 1444 of routes, sticky and nostick flags to alter the behavior of stateful 1445 load balancing. 1446 Bump __FreeBSD_version to 800078. 1447 144820090408: 1449 Do not use Giant for kbdmux(4) locking. This is wrong and 1450 apparently causing more problems than it solves. This will 1451 re-open the issue where interrupt handlers may race with 1452 kbdmux(4) in polling mode. Typical symptoms include (but 1453 not limited to) duplicated and/or missing characters when 1454 low level console functions (such as gets) are used while 1455 interrupts are enabled (for example geli password prompt, 1456 mountroot prompt etc.). Disabling kbdmux(4) may help. 1457 145820090407: 1459 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1460 kernel modules referencing any of the above need to be recompiled. 1461 Bump __FreeBSD_version to 800075. 1462 146320090320: 1464 GEOM_PART has become the default partition slicer for storage devices, 1465 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1466 introduces some changes: 1467 1468 MSDOS/EBR: the devices created from MSDOS extended partition entries 1469 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1470 to devices with offset-based names. fstabs may need to be modified. 1471 1472 BSD: the "geometry does not match label" warning is harmless in most 1473 cases but it points to problems in file system misalignment with 1474 disk geometry. The "c" partition is now implicit, covers the whole 1475 top-level drive and cannot be (mis)used by users. 1476 1477 General: Kernel dumps are now not allowed to be written to devices 1478 whose partition types indicate they are meant to be used for file 1479 systems (or, in case of MSDOS partitions, as something else than 1480 the "386BSD" type). 1481 1482 Most of these changes date approximately from 200812. 1483 148420090319: 1485 The uscanner(4) driver has been removed from the kernel. This follows 1486 Linux removing theirs in 2.6 and making libusb the default interface 1487 (supported by sane). 1488 148920090319: 1490 The multicast forwarding code has been cleaned up. netstat(1) 1491 only relies on KVM now for printing bandwidth upcall meters. 1492 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1493 ip6_mroute_mod respectively. The config(5) options for statically 1494 compiling this code remain the same, i.e. 'options MROUTING'. 1495 149620090315: 1497 Support for the IFF_NEEDSGIANT network interface flag has been 1498 removed, which means that non-MPSAFE network device drivers are no 1499 longer supported. In particular, if_ar, if_sr, and network device 1500 drivers from the old (legacy) USB stack can no longer be built or 1501 used. 1502 150320090313: 1504 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1505 a bunch of new language catalog files have also been added. 1506 This means that some common libc messages are now localized and 1507 they depend on the LC_MESSAGES environmental variable. 1508 150920090313: 1510 The k8temp(4) driver has been renamed to amdtemp(4) since 1511 support for Family 10 and Family 11 CPU families was added. 1512 151320090309: 1514 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1515 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1516 1517 For kernel developers, the most important changes are that the 1518 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1519 and this lock has been downgraded to a non-recursive mutex. 1520 1521 Transport protocols (UDP, Raw IP) are now responsible for filtering 1522 inbound multicast traffic according to group membership and source 1523 filters. The imo_multicast_filter() KPI exists for this purpose. 1524 Transports which do not use multicast (SCTP, TCP) already reject 1525 multicast by default. Forwarding and receive performance may improve 1526 as a mutex acquisition is no longer needed in the ip_input() 1527 low-level input path. in_addmulti() and in_delmulti() are shimmed 1528 to new KPIs which exist to support SSM in-kernel. 1529 1530 For application developers, it is recommended that loopback of 1531 multicast datagrams be disabled for best performance, as this 1532 will still cause the lock to be taken for each looped-back 1533 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1534 be tuned to 0 to disable loopback by default; it defaults to 1 1535 to preserve the existing behaviour. 1536 1537 For systems administrators, to obtain best performance with 1538 multicast reception and multiple groups, it is always recommended 1539 that a card with a suitably precise hash filter is used. Hash 1540 collisions will still result in the lock being taken within the 1541 transport protocol input path to check group membership. 1542 1543 If deploying FreeBSD in an environment with IGMP snooping switches, 1544 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1545 enabled; this forces 224.0.0.0/24 group membership to be announced 1546 via IGMP. 1547 1548 The size of 'struct igmpstat' has changed; netstat needs to be 1549 recompiled to reflect this. 1550 Bump __FreeBSD_version to 800070. 1551 155220090309: 1553 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1554 updated to use it. This requires a buildworld/installworld in order to 1555 update the library and dependencies (usbconfig, etc). Its advisable to 1556 rebuild all ports which uses libusb. More specific directions are given 1557 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1558 libusb are no longer required and can be removed. 1559 156020090302: 1561 A workaround is committed to allow the creation of System V shared 1562 memory segment of size > 2 GB on the 64-bit architectures. 1563 Due to a limitation of the existing ABI, the shm_segsz member 1564 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1565 wrong for large segments. Note that limits must be explicitly 1566 raised to allow such segments to be created. 1567 156820090301: 1569 The layout of struct ifnet has changed, requiring a rebuild of all 1570 network device driver modules. 1571 157220090227: 1573 The /dev handling for the new USB stack has changed, a 1574 buildworld/installworld is required for libusb20. 1575 157620090223: 1577 The new USB2 stack has now been permanently moved in and all kernel and 1578 module names reverted to their previous values (eg, usb, ehci, ohci, 1579 ums, ...). The old usb stack can be compiled in by prefixing the name 1580 with the letter 'o', the old usb modules have been removed. 1581 Updating entry 20090216 for xorg and 20090215 for libmap may still 1582 apply. 1583 158420090217: 1585 The rc.conf(5) option if_up_delay has been renamed to 1586 defaultroute_delay to better reflect its purpose. If you have 1587 customized this setting in /etc/rc.conf you need to update it to 1588 use the new name. 1589 159020090216: 1591 xorg 7.4 wants to configure its input devices via hald which does not 1592 yet work with USB2. If the keyboard/mouse does not work in xorg then 1593 add 1594 Option "AllowEmptyInput" "off" 1595 to your ServerLayout section. This will cause X to use the configured 1596 kbd and mouse sections from your xorg.conf. 1597 159820090215: 1599 The GENERIC kernels for all architectures now default to the new USB2 1600 stack. No kernel config options or code have been removed so if a 1601 problem arises please report it and optionally revert to the old USB 1602 stack. If you are loading USB kernel modules or have a custom kernel 1603 that includes GENERIC then ensure that usb names are also changed over, 1604 eg uftdi -> usb2_serial_ftdi. 1605 1606 Older programs linked against the ports libusb 0.1 need to be 1607 redirected to the new stack's libusb20. /etc/libmap.conf can 1608 be used for this: 1609 # Map old usb library to new one for usb2 stack 1610 libusb-0.1.so.8 libusb20.so.1 1611 161220090209: 1613 All USB ethernet devices now attach as interfaces under the name ueN 1614 (eg. ue0). This is to provide a predictable name as vendors often 1615 change usb chipsets in a product without notice. 1616 161720090203: 1618 The ichsmb(4) driver has been changed to require SMBus slave 1619 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1620 All of the other SMBus controller drivers require left-justified 1621 slave addresses, so this change makes all the drivers provide the 1622 same interface. 1623 162420090201: 1625 INET6 statistics (struct ip6stat) was updated. 1626 netstat(1) needs to be recompiled. 1627 162820090119: 1629 NTFS has been removed from GENERIC kernel on amd64 to match 1630 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1631 will load ntfs.ko module automatically when NTFS support is 1632 actually needed, unless ntfs.ko is not installed or security 1633 level prohibits loading kernel modules. If either is the case, 1634 "options NTFS" has to be added into kernel config. 1635 163620090115: 1637 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1638 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1639 800061. User space tools that rely on the size of struct tcpcb in 1640 tcp_var.h (e.g. sockstat) need to be recompiled. 1641 164220081225: 1643 ng_tty(4) module updated to match the new TTY subsystem. 1644 Due to API change, user-level applications must be updated. 1645 New API support added to mpd5 CVS and expected to be present 1646 in next mpd5.3 release. 1647 164820081219: 1649 With __FreeBSD_version 800060 the makefs tool is part of 1650 the base system (it was a port). 1651 165220081216: 1653 The afdata and ifnet locks have been changed from mutexes to 1654 rwlocks, network modules will need to be re-compiled. 1655 165620081214: 1657 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1658 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1659 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1660 architecture and 40 bytes on 64-bit architecture. The userland 1661 applications "arp" and "ndp" have been updated accordingly. 1662 The output from "netstat -r" shows only routing entries and 1663 none of the L2 information. 1664 166520081130: 1666 __FreeBSD_version 800057 marks the switchover from the 1667 binary ath hal to source code. Users must add the line: 1668 1669 options AH_SUPPORT_AR5416 1670 1671 to their kernel config files when specifying: 1672 1673 device ath_hal 1674 1675 The ath_hal module no longer exists; the code is now compiled 1676 together with the driver in the ath module. It is now 1677 possible to tailor chip support (i.e. reduce the set of chips 1678 and thereby the code size); consult ath_hal(4) for details. 1679 168020081121: 1681 __FreeBSD_version 800054 adds memory barriers to 1682 <machine/atomic.h>, new interfaces to ifnet to facilitate 1683 multiple hardware transmit queues for cards that support 1684 them, and a lock-less ring-buffer implementation to 1685 enable drivers to more efficiently manage queueing of 1686 packets. 1687 168820081117: 1689 A new version of ZFS (version 13) has been merged to -HEAD. 1690 This version has zpool attribute "listsnapshots" off by 1691 default, which means "zfs list" does not show snapshots, 1692 and is the same as Solaris behavior. 1693 169420081028: 1695 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1696 169720081009: 1698 The uhci, ohci, ehci and slhci USB Host controller drivers have 1699 been put into separate modules. If you load the usb module 1700 separately through loader.conf you will need to load the 1701 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1702 controller add the following to loader.conf: 1703 1704 uhci_load="YES" 1705 ehci_load="YES" 1706 170720081009: 1708 The ABI used by the PMC toolset has changed. Please keep 1709 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1710 sync. 1711 171220081009: 1713 atapci kernel module now includes only generic PCI ATA 1714 driver. AHCI driver moved to ataahci kernel module. 1715 All vendor-specific code moved into separate kernel modules: 1716 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1717 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1718 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1719 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1720 172120080820: 1722 The TTY subsystem of the kernel has been replaced by a new 1723 implementation, which provides better scalability and an 1724 improved driver model. Most common drivers have been migrated to 1725 the new TTY subsystem, while others have not. The following 1726 drivers have not yet been ported to the new TTY layer: 1727 1728 PCI/ISA: 1729 cy, digi, rc, rp, sio 1730 1731 USB: 1732 ubser, ucycom 1733 1734 Line disciplines: 1735 ng_h4, ng_tty, ppp, sl, snp 1736 1737 Adding these drivers to your kernel configuration file shall 1738 cause compilation to fail. 1739 174020080818: 1741 ntpd has been upgraded to 4.2.4p5. 1742 174320080801: 1744 OpenSSH has been upgraded to 5.1p1. 1745 1746 For many years, FreeBSD's version of OpenSSH preferred DSA 1747 over RSA for host and user authentication keys. With this 1748 upgrade, we've switched to the vendor's default of RSA over 1749 DSA. This may cause upgraded clients to warn about unknown 1750 host keys even for previously known hosts. Users should 1751 follow the usual procedure for verifying host keys before 1752 accepting the RSA key. 1753 1754 This can be circumvented by setting the "HostKeyAlgorithms" 1755 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1756 command line. 1757 1758 Please note that the sequence of keys offered for 1759 authentication has been changed as well. You may want to 1760 specify IdentityFile in a different order to revert this 1761 behavior. 1762 176320080713: 1764 The sio(4) driver has been removed from the i386 and amd64 1765 kernel configuration files. This means uart(4) is now the 1766 default serial port driver on those platforms as well. 1767 1768 To prevent collisions with the sio(4) driver, the uart(4) driver 1769 uses different names for its device nodes. This means the 1770 onboard serial port will now most likely be called "ttyu0" 1771 instead of "ttyd0". You may need to reconfigure applications to 1772 use the new device names. 1773 1774 When using the serial port as a boot console, be sure to update 1775 /boot/device.hints and /etc/ttys before booting the new kernel. 1776 If you forget to do so, you can still manually specify the hints 1777 at the loader prompt: 1778 1779 set hint.uart.0.at="isa" 1780 set hint.uart.0.port="0x3F8" 1781 set hint.uart.0.flags="0x10" 1782 set hint.uart.0.irq="4" 1783 boot -s 1784 178520080609: 1786 The gpt(8) utility has been removed. Use gpart(8) to partition 1787 disks instead. 1788 178920080603: 1790 The version that Linuxulator emulates was changed from 2.4.2 1791 to 2.6.16. If you experience any problems with Linux binaries 1792 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1793 if it fixes the problem contact emulation mailing list. 1794 179520080525: 1796 ISDN4BSD (I4B) was removed from the src tree. You may need to 1797 update a your kernel configuration and remove relevant entries. 1798 179920080509: 1800 I have checked in code to support multiple routing tables. 1801 See the man pages setfib(1) and setfib(2). 1802 This is a hopefully backwards compatible version, 1803 but to make use of it you need to compile your kernel 1804 with options ROUTETABLES=2 (or more up to 16). 1805 180620080420: 1807 The 802.11 wireless support was redone to enable multi-bss 1808 operation on devices that are capable. The underlying device 1809 is no longer used directly but instead wlanX devices are 1810 cloned with ifconfig. This requires changes to rc.conf files. 1811 For example, change: 1812 ifconfig_ath0="WPA DHCP" 1813 to 1814 wlans_ath0=wlan0 1815 ifconfig_wlan0="WPA DHCP" 1816 see rc.conf(5) for more details. In addition, mergemaster of 1817 /etc/rc.d is highly recommended. Simultaneous update of userland 1818 and kernel wouldn't hurt either. 1819 1820 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1821 modules were merged into the base wlan module. All references 1822 to these modules (e.g. in kernel config files) must be removed. 1823 182420080408: 1825 psm(4) has gained write(2) support in native operation level. 1826 Arbitrary commands can be written to /dev/psm%d and status can 1827 be read back from it. Therefore, an application is responsible 1828 for status validation and error recovery. It is a no-op in 1829 other operation levels. 1830 183120080312: 1832 Support for KSE threading has been removed from the kernel. To 1833 run legacy applications linked against KSE libmap.conf may 1834 be used. The following libmap.conf may be used to ensure 1835 compatibility with any prior release: 1836 1837 libpthread.so.1 libthr.so.1 1838 libpthread.so.2 libthr.so.2 1839 libkse.so.3 libthr.so.3 1840 184120080301: 1842 The layout of struct vmspace has changed. This affects libkvm 1843 and any executables that link against libkvm and use the 1844 kvm_getprocs() function. In particular, but not exclusively, 1845 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1846 The effects are minimal, but it's advisable to upgrade world 1847 nonetheless. 1848 184920080229: 1850 The latest em driver no longer has support in it for the 1851 82575 adapter, this is now moved to the igb driver. The 1852 split was done to make new features that are incompatible 1853 with older hardware easier to do. 1854 185520080220: 1856 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1857 likewise the kernel option is now GEOM_LINUX_LVM. 1858 185920080211: 1860 The default NFS mount mode has changed from UDP to TCP for 1861 increased reliability. If you rely on (insecurely) NFS 1862 mounting across a firewall you may need to update your 1863 firewall rules. 1864 186520080208: 1866 Belatedly note the addition of m_collapse for compacting 1867 mbuf chains. 1868 186920080126: 1870 The fts(3) structures have been changed to use adequate 1871 integer types for their members and so to be able to cope 1872 with huge file trees. The old fts(3) ABI is preserved 1873 through symbol versioning in libc, so third-party binaries 1874 using fts(3) should still work, although they will not take 1875 advantage of the extended types. At the same time, some 1876 third-party software might fail to build after this change 1877 due to unportable assumptions made in its source code about 1878 fts(3) structure members. Such software should be fixed 1879 by its vendor or, in the worst case, in the ports tree. 1880 FreeBSD_version 800015 marks this change for the unlikely 1881 case that a portable fix is impossible. 1882 188320080123: 1884 To upgrade to -current after this date, you must be running 1885 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1886 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1887 188820071128: 1889 The ADAPTIVE_GIANT kernel option has been retired because its 1890 functionality is the default now. 1891 189220071118: 1893 The AT keyboard emulation of sunkbd(4) has been turned on 1894 by default. In order to make the special symbols of the Sun 1895 keyboards driven by sunkbd(4) work under X these now have 1896 to be configured the same way as Sun USB keyboards driven 1897 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1898 1899 Option "XkbLayout" "us" 1900 Option "XkbRules" "xorg" 1901 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1902 190320071024: 1904 It has been decided that it is desirable to provide ABI 1905 backwards compatibility to the FreeBSD 4/5/6 versions of the 1906 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1907 broken with the introduction of PCI domain support (see the 1908 20070930 entry). Unfortunately, this required the ABI of 1909 PCIOCGETCONF to be broken again in order to be able to 1910 provide backwards compatibility to the old version of that 1911 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1912 again. As for prominent ports this affects neither pciutils 1913 nor xorg-server this time, the hal port needs to be rebuilt 1914 however. 1915 191620071020: 1917 The misnamed kthread_create() and friends have been renamed 1918 to kproc_create() etc. Many of the callers already 1919 used kproc_start().. 1920 I will return kthread_create() and friends in a while 1921 with implementations that actually create threads, not procs. 1922 Renaming corresponds with version 800002. 1923 192420071010: 1925 RELENG_7 branched. 1926 1927COMMON ITEMS: 1928 1929 General Notes 1930 ------------- 1931 Avoid using make -j when upgrading. While generally safe, there are 1932 sometimes problems using -j to upgrade. If your upgrade fails with 1933 -j, please try again without -j. From time to time in the past there 1934 have been problems using -j with buildworld and/or installworld. This 1935 is especially true when upgrading between "distant" versions (eg one 1936 that cross a major release boundary or several minor releases, or when 1937 several months have passed on the -current branch). 1938 1939 Sometimes, obscure build problems are the result of environment 1940 poisoning. This can happen because the make utility reads its 1941 environment when searching for values for global variables. To run 1942 your build attempts in an "environmental clean room", prefix all make 1943 commands with 'env -i '. See the env(1) manual page for more details. 1944 1945 When upgrading from one major version to another it is generally best 1946 to upgrade to the latest code in the currently installed branch first, 1947 then do an upgrade to the new branch. This is the best-tested upgrade 1948 path, and has the highest probability of being successful. Please try 1949 this approach before reporting problems with a major version upgrade. 1950 1951 When upgrading a live system, having a root shell around before 1952 installing anything can help undo problems. Not having a root shell 1953 around can lead to problems if pam has changed too much from your 1954 starting point to allow continued authentication after the upgrade. 1955 1956 ZFS notes 1957 --------- 1958 When upgrading the boot ZFS pool to a new version, always follow 1959 these two steps: 1960 1961 1.) recompile and reinstall the ZFS boot loader and boot block 1962 (this is part of "make buildworld" and "make installworld") 1963 1964 2.) update the ZFS boot block on your boot drive 1965 1966 The following example updates the ZFS boot block on the first 1967 partition (freebsd-boot) of a GPT partitioned drive ad0: 1968 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1969 1970 Non-boot pools do not need these updates. 1971 1972 To build a kernel 1973 ----------------- 1974 If you are updating from a prior version of FreeBSD (even one just 1975 a few days old), you should follow this procedure. It is the most 1976 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1977 1978 make kernel-toolchain 1979 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1980 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1981 1982 To test a kernel once 1983 --------------------- 1984 If you just want to boot a kernel once (because you are not sure 1985 if it works, or if you want to boot a known bad kernel to provide 1986 debugging information) run 1987 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1988 nextboot -k testkernel 1989 1990 To just build a kernel when you know that it won't mess you up 1991 -------------------------------------------------------------- 1992 This assumes you are already running a CURRENT system. Replace 1993 ${arch} with the architecture of your machine (e.g. "i386", 1994 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1995 1996 cd src/sys/${arch}/conf 1997 config KERNEL_NAME_HERE 1998 cd ../compile/KERNEL_NAME_HERE 1999 make depend 2000 make 2001 make install 2002 2003 If this fails, go to the "To build a kernel" section. 2004 2005 To rebuild everything and install it on the current system. 2006 ----------------------------------------------------------- 2007 # Note: sometimes if you are running current you gotta do more than 2008 # is listed here if you are upgrading from a really old current. 2009 2010 <make sure you have good level 0 dumps> 2011 make buildworld 2012 make kernel KERNCONF=YOUR_KERNEL_HERE 2013 [1] 2014 <reboot in single user> [3] 2015 mergemaster -p [5] 2016 make installworld 2017 mergemaster -i [4] 2018 make delete-old [6] 2019 <reboot> 2020 2021 To cross-install current onto a separate partition 2022 -------------------------------------------------- 2023 # In this approach we use a separate partition to hold 2024 # current's root, 'usr', and 'var' directories. A partition 2025 # holding "/", "/usr" and "/var" should be about 2GB in 2026 # size. 2027 2028 <make sure you have good level 0 dumps> 2029 <boot into -stable> 2030 make buildworld 2031 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2032 <maybe newfs current's root partition> 2033 <mount current's root partition on directory ${CURRENT_ROOT}> 2034 make installworld DESTDIR=${CURRENT_ROOT} 2035 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2036 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2037 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2038 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2039 <reboot into current> 2040 <do a "native" rebuild/install as described in the previous section> 2041 <maybe install compatibility libraries from ports/misc/compat*> 2042 <reboot> 2043 2044 2045 To upgrade in-place from stable to current 2046 ---------------------------------------------- 2047 <make sure you have good level 0 dumps> 2048 make buildworld [9] 2049 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2050 [1] 2051 <reboot in single user> [3] 2052 mergemaster -p [5] 2053 make installworld 2054 mergemaster -i [4] 2055 make delete-old [6] 2056 <reboot> 2057 2058 Make sure that you've read the UPDATING file to understand the 2059 tweaks to various things you need. At this point in the life 2060 cycle of current, things change often and you are on your own 2061 to cope. The defaults can also change, so please read ALL of 2062 the UPDATING entries. 2063 2064 Also, if you are tracking -current, you must be subscribed to 2065 freebsd-current@freebsd.org. Make sure that before you update 2066 your sources that you have read and understood all the recent 2067 messages there. If in doubt, please track -stable which has 2068 much fewer pitfalls. 2069 2070 [1] If you have third party modules, such as vmware, you 2071 should disable them at this point so they don't crash your 2072 system on reboot. 2073 2074 [3] From the bootblocks, boot -s, and then do 2075 fsck -p 2076 mount -u / 2077 mount -a 2078 cd src 2079 adjkerntz -i # if CMOS is wall time 2080 Also, when doing a major release upgrade, it is required that 2081 you boot into single user mode to do the installworld. 2082 2083 [4] Note: This step is non-optional. Failure to do this step 2084 can result in a significant reduction in the functionality of the 2085 system. Attempting to do it by hand is not recommended and those 2086 that pursue this avenue should read this file carefully, as well 2087 as the archives of freebsd-current and freebsd-hackers mailing lists 2088 for potential gotchas. The -U option is also useful to consider. 2089 See mergemaster(8) for more information. 2090 2091 [5] Usually this step is a noop. However, from time to time 2092 you may need to do this if you get unknown user in the following 2093 step. It never hurts to do it all the time. You may need to 2094 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2095 install) after the buildworld before this step if you last updated 2096 from current before 20130425 or from -stable before 20130430. 2097 2098 [6] This only deletes old files and directories. Old libraries 2099 can be deleted by "make delete-old-libs", but you have to make 2100 sure that no program is using those libraries anymore. 2101 2102 [8] In order to have a kernel that can run the 4.x binaries needed to 2103 do an installworld, you must include the COMPAT_FREEBSD4 option in 2104 your kernel. Failure to do so may leave you with a system that is 2105 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2106 required to run the 5.x binaries on more recent kernels. And so on 2107 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2108 2109 Make sure that you merge any new devices from GENERIC since the 2110 last time you updated your kernel config file. 2111 2112 [9] When checking out sources, you must include the -P flag to have 2113 cvs prune empty directories. 2114 2115 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2116 "?=" instead of the "=" assignment operator, so that buildworld can 2117 override the CPUTYPE if it needs to. 2118 2119 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2120 not on the command line, or in /etc/make.conf. buildworld will 2121 warn if it is improperly defined. 2122FORMAT: 2123 2124This file contains a list, in reverse chronological order, of major 2125breakages in tracking -current. It is not guaranteed to be a complete 2126list of such breakages, and only contains entries since October 10, 2007. 2127If you need to see UPDATING entries from before that date, you will need 2128to fetch an UPDATING file from an older FreeBSD release. 2129 2130Copyright information: 2131 2132Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2133 2134Redistribution, publication, translation and use, with or without 2135modification, in full or in part, in any form or format of this 2136document are permitted without further permission from the author. 2137 2138THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2139IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2140WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2141DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2142INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2143(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2144SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2145HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2146STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2147IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2148POSSIBILITY OF SUCH DAMAGE. 2149 2150Contact Warner Losh if you have any questions about your use of 2151this document. 2152 2153$FreeBSD: stable/10/UPDATING 271298 2014-09-09 04:00:30Z ngie $ 2154