UPDATING revision 286665
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 1920150817: 20 10.2-RELEASE. 21 2220150703: 23 The default Unbound configuration now enables remote control 24 using a local socket. Users who have already enabled the 25 local_unbound service should regenerate their configuration 26 by running "service local_unbound setup" as root. 27 2820150624: 29 An additional fix for the issue described in the 20150614 sendmail 30 entry below has been been committed in revision 284786. 31 3220150615: 33 The fix for the issue described in the 20150614 sendmail entry 34 below has been been committed in revision 284485. The work 35 around described in that entry is no longer needed unless the 36 default setting is overridden by a confDH_PARAMETERS configuration 37 setting of '5' or pointing to a 512 bit DH parameter file. 38 3920150614: 40 The import of openssl to address the FreeBSD-SA-15:10.openssl 41 security advisory includes a change which rejects handshakes 42 with DH parameters below 768 bits. sendmail releases prior 43 to 8.15.2 (not yet released), defaulted to a 512 bit 44 DH parameter setting for client connections. To work around 45 this interoperability, sendmail can be configured to use a 46 2048 bit DH parameter by: 47 48 1. Edit /etc/mail/`hostname`.mc 49 2. If a setting for confDH_PARAMETERS does not exist or 50 exists and is set to a string beginning with '5', 51 replace it with '2'. 52 3. If a setting for confDH_PARAMETERS exists and is set to 53 a file path, create a new file with: 54 openssl dhparam -out /path/to/file 2048 55 4. Rebuild the .cf file: 56 cd /etc/mail/; make; make install 57 5. Restart sendmail: 58 cd /etc/mail/; make restart 59 60 A sendmail patch is coming, at which time this file will be 61 updated. 62 6320150601: 64 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 65 defined in symlink(7); previously symlinks were silently ignored. 66 6720150430: 68 The const qualifier has been removed from iconv(3) to comply with 69 POSIX. The ports tree is aware of this from r384038 onwards. 70 7120141215: 72 At svn r275807, The default linux compat kernel ABI has been adjusted 73 to 2.6.18 in support of the linux-c6 compat ports infrastructure 74 update. If you wish to continue using the linux-f10 compat ports, 75 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 76 encouraged to update their linux-compat packages to linux-c6 during 77 their next update cycle. 78 79 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 80 8120141205: 82 pjdfstest has been integrated into kyua as an opt-in test suite. 83 Please see share/doc/pjdfstest/README for a more details on how to 84 execute it. 85 8620141118: 87 10.1-RELEASE. 88 8920140904: 90 The ofwfb driver, used to provide a graphics console on PowerPC when 91 using vt(4), no longer allows mmap() of all of physical memory. This 92 will prevent Xorg on PowerPC with some ATI graphics cards from 93 initializing properly unless x11-servers/xorg-server is updated to 94 1.12.4_8 or newer. 95 9620140831: 97 The libatf-c and libatf-c++ major versions were downgraded to 0 and 98 1 respectively to match the upstream numbers. They were out of 99 sync because, when they were originally added to FreeBSD, the 100 upstream versions were not respected. These libraries are private 101 and not yet built by default, so renumbering them should be a 102 non-issue. However, unclean source trees will yield broken test 103 programs once the operator executes "make delete-old-libs" after a 104 "make installworld". 105 106 Additionally, the atf-sh binary was made private by moving it into 107 /usr/libexec/. Already-built shell test programs will keep the 108 path to the old binary so they will break after "make delete-old" 109 is run. 110 111 If you are using WITH_TESTS=yes (not the default), wipe the object 112 tree and rebuild from scratch to prevent spurious test failures. 113 This is only needed once: the misnumbered libraries and misplaced 114 binaries have been added to OptionalObsoleteFiles.inc so they will 115 be removed during a clean upgrade. 116 11720140814: 118 The ixgbe tunables now match their sysctl counterparts, for example: 119 hw.ixgbe.enable_aim => hw.ix.enable_aim 120 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 121 12220140801: 123 The NFSv4.1 server committed by r269398 changes the internal 124 function call interfaces used between the NFS and krpc modules. 125 As such, __FreeBSD_version was bumped. 126 12720140729: 128 The default unbound configuration has been modified to address 129 issues with reverse lookups on networks that use private 130 address ranges. If you use the local_unbound service, run 131 "service local_unbound setup" as root to regenerate your 132 configuration, then "service local_unbound reload" to load the 133 new configuration. 134 13520140717: 136 It is no longer necessary to include the dwarf version in your DEBUG 137 options in your kernel config file. The bug that required it to be 138 placed in the config file has bene fixed. DEBUG should now just 139 contain -g. The build system will automatically update things 140 to do the right thing. 141 14220140715: 143 Several ABI breaking changes were merged to CTL and new iSCSI code. 144 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 145 iscsictl need to be rebuilt to work with a new kernel. 146 14720140708: 148 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 149 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 150 which differs from the behaviour controlled by this knob.) 151 15220140608: 153 On i386 and amd64 systems, the onifconsole flag is now set by default 154 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 155 as a login TTY if it is set in the bootloader as an active kernel 156 console. No changes in behavior should result otherwise. To revert to 157 the previous behavior, set ttyu0 to "off" in /etc/ttys. 158 15920140512: 160 Clang and llvm have been upgraded to 3.4.1 release. 161 16220140321: 163 Clang and llvm have been upgraded to 3.4 release. 164 16520140306: 166 If a Makefile in a tests/ directory was auto-generating a Kyuafile 167 instead of providing an explicit one, this would prevent such 168 Makefile from providing its own Kyuafile in the future during 169 NO_CLEAN builds. This has been fixed in the Makefiles but manual 170 intervention is needed to clean an objdir if you use NO_CLEAN: 171 # find /usr/obj -name Kyuafile | xargs rm -f 172 17320140303: 174 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 175 capability mode support. Please note that enabling the feature in 176 kernel is still highly recommended. 177 17820140227: 179 OpenSSH is now built with sandbox support, and will use sandbox as 180 the default privilege separation method. This requires Capsicum 181 capability mode support in kernel. 182 18320140216: 184 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 185 been deprecated and will not be part of FreeBSD 11.0 and later 186 releases. If you use this driver, please consider switching to 187 the nfe(4) driver instead. 188 18920140120: 190 10.0-RELEASE. 191 19220131216: 193 The behavior of gss_pseudo_random() for the krb5 mechanism 194 has changed, for applications requesting a longer random string 195 than produced by the underlying enctype's pseudo-random() function. 196 In particular, the random string produced from a session key of 197 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 198 be different at the 17th octet and later, after this change. 199 The counter used in the PRF+ construction is now encoded as a 200 big-endian integer in accordance with RFC 4402. 201 __FreeBSD_version is bumped to 1000701. 202 20320131108: 204 The WITHOUT_ATF build knob has been removed and its functionality 205 has been subsumed into the more generic WITHOUT_TESTS. If you were 206 using the former to disable the build of the ATF libraries, you 207 should change your settings to use the latter. 208 20920131031: 210 The default version of mtree is nmtree which is obtained from 211 NetBSD. The output is generally the same, but may vary 212 slightly. If you found you need identical output adding 213 "-F freebsd9" to the command line should do the trick. For the 214 time being, the old mtree is available as fmtree. 215 21620131014: 217 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 218 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 219 1.1.4_8 and verify bsdyml not linked in, before running "make 220 delete-old-libs": 221 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 222 or 223 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 224 22520131010: 226 The rc.d/jail script has been updated to support jail(8) 227 configuration file. The "jail_<jname>_*" rc.conf(5) variables 228 for per-jail configuration are automatically converted to 229 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 230 This is transparently backward compatible. See below about some 231 incompatibilities and rc.conf(5) manual page for more details. 232 233 These variables are now deprecated in favor of jail(8) configuration 234 file. One can use "rc.d/jail config <jname>" command to generate 235 a jail(8) configuration file in /var/run/jail.<jname>.conf without 236 running the jail(8) utility. The default pathname of the 237 configuration file is /etc/jail.conf and can be specified by 238 using $jail_conf or $jail_<jname>_conf variables. 239 240 Please note that jail_devfs_ruleset accepts an integer at 241 this moment. Please consider to rewrite the ruleset name 242 with an integer. 243 24420130930: 245 BIND has been removed from the base system. If all you need 246 is a local resolver, simply enable and start the local_unbound 247 service instead. Otherwise, several versions of BIND are 248 available in the ports tree. The dns/bind99 port is one example. 249 250 With this change, nslookup(1) and dig(1) are no longer in the base 251 system. Users should instead use host(1) and drill(1) which are 252 in the base system. Alternatively, nslookup and dig can 253 be obtained by installing the dns/bind-tools port. 254 25520130916: 256 With the addition of unbound(8), a new unbound user is now 257 required during installworld. "mergemaster -p" can be used to 258 add the user prior to installworld, as documented in the handbook. 259 26020130911: 261 OpenSSH is now built with DNSSEC support, and will by default 262 silently trust signed SSHFP records. This can be controlled with 263 the VerifyHostKeyDNS client configuration setting. DNSSEC support 264 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 265 26620130906: 267 The GNU Compiler Collection and C++ standard library (libstdc++) 268 are no longer built by default on platforms where clang is the system 269 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 270 options in src.conf. 271 27220130905: 273 The PROCDESC kernel option is now part of the GENERIC kernel 274 configuration and is required for the rwhod(8) to work. 275 If you are using custom kernel configuration, you should include 276 'options PROCDESC'. 277 27820130905: 279 The API and ABI related to the Capsicum framework was modified 280 in backward incompatible way. The userland libraries and programs 281 have to be recompiled to work with the new kernel. This includes the 282 following libraries and programs, but the whole buildworld is 283 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 284 kdump, procstat, rwho, rwhod, uniq. 285 28620130903: 287 AES-NI intrinsic support has been added to gcc. The AES-NI module 288 has been updated to use this support. A new gcc is required to build 289 the aesni module on both i386 and amd64. 290 29120130821: 292 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 293 Thus "device padlock_rng" and "device rdrand_rng" should be 294 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 295 29620130813: 297 WITH_ICONV has been split into two feature sets. WITH_ICONV now 298 enables just the iconv* functionality and is now on by default. 299 WITH_LIBICONV_COMPAT enables the libiconv api and link time 300 compatability. Set WITHOUT_ICONV to build the old way. 301 If you have been using WITH_ICONV before, you will very likely 302 need to turn on WITH_LIBICONV_COMPAT. 303 30420130806: 305 INVARIANTS option now enables DEBUG for code with OpenSolaris and 306 Illumos origin, including ZFS. If you have INVARIANTS in your 307 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 308 explicitly. 309 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 310 locks if WITNESS option was set. Because that generated a lot of 311 witness(9) reports and all of them were believed to be false 312 positives, this is no longer done. New option OPENSOLARIS_WITNESS 313 can be used to achieve the previous behavior. 314 31520130806: 316 Timer values in IPv6 data structures now use time_uptime instead 317 of time_second. Although this is not a user-visible functional 318 change, userland utilities which directly use them---ndp(8), 319 rtadvd(8), and rtsold(8) in the base system---need to be updated 320 to r253970 or later. 321 32220130802: 323 find -delete can now delete the pathnames given as arguments, 324 instead of only files found below them or if the pathname did 325 not contain any slashes. Formerly, the following error message 326 would result: 327 328 find: -delete: <path>: relative path potentially not safe 329 330 Deleting the pathnames given as arguments can be prevented 331 without error messages using -mindepth 1 or by changing 332 directory and passing "." as argument to find. This works in the 333 old as well as the new version of find. 334 33520130726: 336 Behavior of devfs rules path matching has been changed. 337 Pattern is now always matched against fully qualified devfs 338 path and slash characters must be explicitly matched by 339 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 340 subdirectories must be reviewed. 341 34220130716: 343 The default ARM ABI has changed to the ARM EABI. The old ABI is 344 incompatible with the ARM EABI and all programs and modules will 345 need to be rebuilt to work with a new kernel. 346 347 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 348 349 NOTE: Support for the old ABI will be removed in the future and 350 users are advised to upgrade. 351 35220130709: 353 pkg_install has been disconnected from the build if you really need it 354 you should add WITH_PKGTOOLS in your src.conf(5). 355 35620130709: 357 Most of network statistics structures were changed to be able 358 keep 64-bits counters. Thus all tools, that work with networking 359 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 360 36120130629: 362 Fix targets that run multiple make's to use && rather than ; 363 so that subsequent steps depend on success of previous. 364 365 NOTE: if building 'universe' with -j* on stable/8 or stable/9 366 it would be better to start the build using bmake, to avoid 367 overloading the machine. 368 36920130618: 370 Fix a bug that allowed a tracing process (e.g. gdb) to write 371 to a memory-mapped file in the traced process's address space 372 even if neither the traced process nor the tracing process had 373 write access to that file. 374 37520130615: 376 CVS has been removed from the base system. An exact copy 377 of the code is available from the devel/cvs port. 378 37920130613: 380 Some people report the following error after the switch to bmake: 381 382 make: illegal option -- J 383 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 384 ... 385 *** [buildworld] Error code 2 386 387 this likely due to an old instance of make in 388 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 389 which src/Makefile will use that blindly, if it exists, so if 390 you see the above error: 391 392 rm -rf `make -V MAKEPATH` 393 394 should resolve it. 395 39620130516: 397 Use bmake by default. 398 Whereas before one could choose to build with bmake via 399 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 400 make. The goal is to remove these knobs for 10-RELEASE. 401 402 It is worth noting that bmake (like gmake) treats the command 403 line as the unit of failure, rather than statements within the 404 command line. Thus '(cd some/where && dosomething)' is safer 405 than 'cd some/where; dosomething'. The '()' allows consistent 406 behavior in parallel build. 407 40820130429: 409 Fix a bug that allows NFS clients to issue READDIR on files. 410 41120130426: 412 The WITHOUT_IDEA option has been removed because 413 the IDEA patent expired. 414 41520130426: 416 The sysctl which controls TRIM support under ZFS has been renamed 417 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 418 enabled by default. 419 42020130425: 421 The mergemaster command now uses the default MAKEOBJDIRPREFIX 422 rather than creating it's own in the temporary directory in 423 order allow access to bootstrapped versions of tools such as 424 install and mtree. When upgrading from version of FreeBSD where 425 the install command does not support -l, you will need to 426 install a new mergemaster command if mergemaster -p is required. 427 This can be accomplished with the command (cd src/usr.sbin/mergemaster 428 && make install). 429 43020130404: 431 Legacy ATA stack, disabled and replaced by new CAM-based one since 432 FreeBSD 9.0, completely removed from the sources. Kernel modules 433 atadisk and atapi*, user-level tools atacontrol and burncd are 434 removed. Kernel option `options ATA_CAM` is now permanently enabled 435 and removed. 436 43720130319: 438 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 439 and socketpair(2). Software, in particular Kerberos, may 440 automatically detect and use these during building. The resulting 441 binaries will not work on older kernels. 442 44320130308: 444 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 445 information, see the respective 20130304 entry). 446 44720130304: 448 Recent commits to callout(9) changed the size of struct callout, 449 so the KBI is probably heavily disturbed. Also, some functions 450 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 451 by macros. Every kernel module using it won't load, so rebuild 452 is requested. 453 454 The ctl device has been re-enabled in GENERIC for i386 and amd64, 455 but does not initialize by default (because of the new CTL_DISABLE 456 option) to save memory. To re-enable it, remove the CTL_DISABLE 457 option from the kernel config file or set kern.cam.ctl.disable=0 458 in /boot/loader.conf. 459 46020130301: 461 The ctl device has been disabled in GENERIC for i386 and amd64. 462 This was done due to the extra memory being allocated at system 463 initialisation time by the ctl driver which was only used if 464 a CAM target device was created. This makes a FreeBSD system 465 unusable on 128MB or less of RAM. 466 46720130208: 468 A new compression method (lz4) has been merged to -HEAD. Please 469 refer to zpool-features(7) for more information. 470 471 Please refer to the "ZFS notes" section of this file for information 472 on upgrading boot ZFS pools. 473 47420130129: 475 A BSD-licensed patch(1) variant has been added and is installed 476 as bsdpatch, being the GNU version the default patch. 477 To inverse the logic and use the BSD-licensed one as default, 478 while having the GNU version installed as gnupatch, rebuild 479 and install world with the WITH_BSD_PATCH knob set. 480 48120130121: 482 Due to the use of the new -l option to install(1) during build 483 and install, you must take care not to directly set the INSTALL 484 make variable in your /etc/make.conf, /etc/src.conf, or on the 485 command line. If you wish to use the -C flag for all installs 486 you may be able to add INSTALL+=-C to /etc/make.conf or 487 /etc/src.conf. 488 48920130118: 490 The install(1) option -M has changed meaning and now takes an 491 argument that is a file or path to append logs to. In the 492 unlikely event that -M was the last option on the command line 493 and the command line contained at least two files and a target 494 directory the first file will have logs appended to it. The -M 495 option served little practical purpose in the last decade so its 496 use is expected to be extremely rare. 497 49820121223: 499 After switching to Clang as the default compiler some users of ZFS 500 on i386 systems started to experience stack overflow kernel panics. 501 Please consider using 'options KSTACK_PAGES=4' in such configurations. 502 50320121222: 504 GEOM_LABEL now mangles label names read from file system metadata. 505 Mangling affect labels containing spaces, non-printable characters, 506 '%' or '"'. Device names in /etc/fstab and other places may need to 507 be updated. 508 50920121217: 510 By default, only the 10 most recent kernel dumps will be saved. To 511 restore the previous behaviour (no limit on the number of kernel dumps 512 stored in the dump directory) add the following line to /etc/rc.conf: 513 514 savecore_flags="" 515 51620121201: 517 With the addition of auditdistd(8), a new auditdistd user is now 518 required during installworld. "mergemaster -p" can be used to 519 add the user prior to installworld, as documented in the handbook. 520 52120121117: 522 The sin6_scope_id member variable in struct sockaddr_in6 is now 523 filled by the kernel before passing the structure to the userland via 524 sysctl or routing socket. This means the KAME-specific embedded scope 525 id in sin6_addr.s6_addr[2] is always cleared in userland application. 526 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 527 __FreeBSD_version is bumped to 1000025. 528 52920121105: 530 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 531 This means that the world and kernel will be compiled with clang 532 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 533 and /usr/bin/cpp. To disable this behavior and revert to building 534 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 535 of current may need to bootstrap WITHOUT_CLANG first if the clang 536 build fails (its compatibility window doesn't extend to the 9 stable 537 branch point). 538 53920121102: 540 The IPFIREWALL_FORWARD kernel option has been removed. Its 541 functionality now turned on by default. 542 54320121023: 544 The ZERO_COPY_SOCKET kernel option has been removed and 545 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 546 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 547 mechanism which is not safe and may result in kernel crashes. 548 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 549 driver supports disposeable external page sized mbuf storage. 550 Proper replacements for both zero-copy mechanisms are under 551 consideration and will eventually lead to complete removal 552 of the two kernel options. 553 55420121023: 555 The IPv4 network stack has been converted to network byte 556 order. The following modules need to be recompiled together 557 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 558 pf(4), ipfw(4), ng_ipfw(4), stf(4). 559 56020121022: 561 Support for non-MPSAFE filesystems was removed from VFS. The 562 VFS_VERSION was bumped, all filesystem modules shall be 563 recompiled. 564 56520121018: 566 All the non-MPSAFE filesystems have been disconnected from 567 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 568 portalfs, smbfs, xfs. 569 57020121016: 571 The interface cloning API and ABI has changed. The following 572 modules need to be recompiled together with kernel: 573 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 574 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 575 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 576 57720121015: 578 The sdhci driver was split in two parts: sdhci (generic SD Host 579 Controller logic) and sdhci_pci (actual hardware driver). 580 No kernel config modifications are required, but if you 581 load sdhc as a module you must switch to sdhci_pci instead. 582 58320121014: 584 Import the FUSE kernel and userland support into base system. 585 58620121013: 587 The GNU sort(1) program has been removed since the BSD-licensed 588 sort(1) has been the default for quite some time and no serious 589 problems have been reported. The corresponding WITH_GNU_SORT 590 knob has also gone. 591 59220121006: 593 The pfil(9) API/ABI for AF_INET family has been changed. Packet 594 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 595 with new kernel. 596 59720121001: 598 The net80211(4) ABI has been changed to allow for improved driver 599 PS-POLL and power-save support. All wireless drivers need to be 600 recompiled to work with the new kernel. 601 60220120913: 603 The random(4) support for the VIA hardware random number 604 generator (`PADLOCK') is no longer enabled unconditionally. 605 Add the padlock_rng device in the custom kernel config if 606 needed. The GENERIC kernels on i386 and amd64 do include the 607 device, so the change only affects the custom kernel 608 configurations. 609 61020120908: 611 The pf(4) packet filter ABI has been changed. pfctl(8) and 612 snmp_pf module need to be recompiled to work with new kernel. 613 61420120828: 615 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 616 to -HEAD. Pools that have empty_bpobj in active state can not be 617 imported read-write with ZFS implementations that do not support 618 this feature. For more information read the zpool-features(5) 619 manual page. 620 62120120727: 622 The sparc64 ZFS loader has been changed to no longer try to auto- 623 detect ZFS providers based on diskN aliases but now requires these 624 to be explicitly listed in the OFW boot-device environment variable. 625 62620120712: 627 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 628 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 629 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 630 63120120712: 632 The following sysctls and tunables have been renamed for consistency 633 with other variables: 634 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 635 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 636 63720120628: 638 The sort utility has been replaced with BSD sort. For now, GNU sort 639 is also available as "gnusort" or the default can be set back to 640 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 641 installed as "bsdsort". 642 64320120611: 644 A new version of ZFS (pool version 5000) has been merged to -HEAD. 645 Starting with this version the old system of ZFS pool versioning 646 is superseded by "feature flags". This concept enables forward 647 compatibility against certain future changes in functionality of ZFS 648 pools. The first read-only compatible "feature flag" for ZFS pools 649 is named "com.delphix:async_destroy". For more information 650 read the new zpool-features(5) manual page. 651 Please refer to the "ZFS notes" section of this file for information 652 on upgrading boot ZFS pools. 653 65420120417: 655 The malloc(3) implementation embedded in libc now uses sources imported 656 as contrib/jemalloc. The most disruptive API change is to 657 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 658 delete it prior to installworld, and optionally re-create it using the 659 new format after rebooting. See malloc.conf(5) for details 660 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 661 NAMESPACE section). 662 66320120328: 664 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 665 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 666 now spelled mips. This is to aid compatibility with third-party 667 software that expects this naming scheme in uname(3). Little-endian 668 settings are unchanged. If you are updating a big-endian mips64 machine 669 from before this change, you may need to set MACHINE_ARCH=mips64 in 670 your environment before the new build system will recognize your machine. 671 67220120306: 673 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 674 platforms. 675 67620120229: 677 Now unix domain sockets behave "as expected" on nullfs(5). Previously 678 nullfs(5) did not pass through all behaviours to the underlying layer, 679 as a result if we bound to a socket on the lower layer we could connect 680 only to the lower path; if we bound to the upper layer we could connect 681 only to the upper path. The new behavior is one can connect to both the 682 lower and the upper paths regardless what layer path one binds to. 683 68420120211: 685 The getifaddrs upgrade path broken with 20111215 has been restored. 686 If you have upgraded in between 20111215 and 20120209 you need to 687 recompile libc again with your kernel. You still need to recompile 688 world to be able to configure CARP but this restriction already 689 comes from 20111215. 690 69120120114: 692 The set_rcvar() function has been removed from /etc/rc.subr. All 693 base and ports rc.d scripts have been updated, so if you have a 694 port installed with a script in /usr/local/etc/rc.d you can either 695 hand-edit the rcvar= line, or reinstall the port. 696 697 An easy way to handle the mass-update of /etc/rc.d: 698 rm /etc/rc.d/* && mergemaster -i 699 70020120109: 701 panic(9) now stops other CPUs in the SMP systems, disables interrupts 702 on the current CPU and prevents other threads from running. 703 This behavior can be reverted using the kern.stop_scheduler_on_panic 704 tunable/sysctl. 705 The new behavior can be incompatible with kern.sync_on_panic. 706 70720111215: 708 The carp(4) facility has been changed significantly. Configuration 709 of the CARP protocol via ifconfig(8) has changed, as well as format 710 of CARP events submitted to devd(8) has changed. See manual pages 711 for more information. The arpbalance feature of carp(4) is currently 712 not supported anymore. 713 714 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 715 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 716 need to be recompiled. 717 71820111122: 719 The acpi_wmi(4) status device /dev/wmistat has been renamed to 720 /dev/wmistat0. 721 72220111108: 723 The option VFS_ALLOW_NONMPSAFE option has been added in order to 724 explicitely support non-MPSAFE filesystems. 725 It is on by default for all supported platform at this present 726 time. 727 72820111101: 729 The broken amd(4) driver has been replaced with esp(4) in the amd64, 730 i386 and pc98 GENERIC kernel configuration files. 731 73220110930: 733 sysinstall has been removed 734 73520110923: 736 The stable/9 branch created in subversion. This corresponds to the 737 RELENG_9 branch in CVS. 738 73920110913: 740 This commit modifies vfs_register() so that it uses a hash 741 calculation to set vfc_typenum, which is enabled by default. 742 The first time a system is booted after this change, the 743 vfc_typenum values will change for all file systems. The 744 main effect of this is a change to the NFS server file handles 745 for file systems that use vfc_typenum in their fsid, such as ZFS. 746 It will, however, prevent vfc_typenum from changing when file 747 systems are loaded in a different order for subsequent reboots. 748 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 749 until you are ready to remount all NFS clients after a reboot. 750 75120110828: 752 Bump the shared library version numbers for libraries that 753 do not use symbol versioning, have changed the ABI compared 754 to stable/8 and which shared library version was not bumped. 755 Done as part of 9.0-RELEASE cycle. 756 75720110815: 758 During the merge of Capsicum features, the fget(9) KPI was modified. 759 This may require the rebuilding of out-of-tree device drivers -- 760 issues have been reported specifically with the nVidia device driver. 761 __FreeBSD_version is bumped to 900041. 762 763 Also, there is a period between 20110811 and 20110814 where the 764 special devices /dev/{stdin,stdout,stderr} did not work correctly. 765 Building world from a kernel during that window may not work. 766 76720110628: 768 The packet filter (pf) code has been updated to OpenBSD 4.5. 769 You need to update userland tools to be in sync with kernel. 770 This update breaks backward compatibility with earlier pfsync(4) 771 versions. Care must be taken when updating redundant firewall setups. 772 77320110608: 774 The following sysctls and tunables are retired on x86 platforms: 775 machdep.hlt_cpus 776 machdep.hlt_logical_cpus 777 The following sysctl is retired: 778 machdep.hyperthreading_allowed 779 The sysctls were supposed to provide a way to dynamically offline and 780 online selected CPUs on x86 platforms, but the implementation has not 781 been reliable especially with SCHED_ULE scheduler. 782 machdep.hyperthreading_allowed tunable is still available to ignore 783 hyperthreading CPUs at OS level. 784 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 785 where X is an APIC ID of a CPU. Be advised, though, that disabling 786 CPUs in non-uniform fashion will result in non-uniform topology and 787 may lead to sub-optimal system performance with SCHED_ULE, which is 788 a default scheduler. 789 79020110607: 791 cpumask_t type is retired and cpuset_t is used in order to describe 792 a mask of CPUs. 793 79420110531: 795 Changes to ifconfig(8) for dynamic address family detection mandate 796 that you are running a kernel of 20110525 or later. Make sure to 797 follow the update procedure to boot a new kernel before installing 798 world. 799 80020110513: 801 Support for sun4v architecture is officially dropped 802 80320110503: 804 Several KPI breaking changes have been committed to the mii(4) layer, 805 the PHY drivers and consequently some Ethernet drivers using mii(4). 806 This means that miibus.ko and the modules of the affected Ethernet 807 drivers need to be recompiled. 808 809 Note to kernel developers: Given that the OUI bit reversion problem 810 was fixed as part of these changes all mii(4) commits related to OUIs, 811 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 812 handling, no longer can be merged verbatim to stable/8 and previous 813 branches. 814 81520110430: 816 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 817 into their kernel configurations along with 'device pci'. 818 81920110427: 820 The default NFS client is now the new NFS client, so fstype "newnfs" 821 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 822 Although mounts via fstype "nfs" will usually work without userland 823 changes, it is recommended that the mount(8) and mount_nfs(8) 824 commands be rebuilt from sources and that a link to mount_nfs called 825 mount_oldnfs be created. The new client is compiled into the 826 kernel with "options NFSCL" and this is needed for diskless root 827 file systems. The GENERIC kernel configs have been changed to use 828 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 829 To use the regular/old client, you can "mount -t oldnfs ...". For 830 a diskless root file system, you must also include a line like: 831 832 vfs.root.mountfrom="oldnfs:" 833 834 in the boot/loader.conf on the root fs on the NFS server to make 835 a diskless root fs use the old client. 836 83720110424: 838 The GENERIC kernels for all architectures now default to the new 839 CAM-based ATA stack. It means that all legacy ATA drivers were 840 removed and replaced by respective CAM drivers. If you are using 841 ATA device names in /etc/fstab or other places, make sure to update 842 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 843 where 'Y's are the sequential numbers starting from zero for each type 844 in order of detection, unless configured otherwise with tunables, 845 see cam(4)). There will be symbolic links created in /dev/ to map 846 old adX devices to the respective adaY. They should provide basic 847 compatibility for file systems mounting in most cases, but they do 848 not support old user-level APIs and do not have respective providers 849 in GEOM. Consider using updated management tools with new device names. 850 851 It is possible to load devices ahci, ata, siis and mvs as modules, 852 but option ATA_CAM should remain in kernel configuration to make ata 853 module work as CAM driver supporting legacy ATA controllers. Device ata 854 still can be used in modular fashion (atacore + ...). Modules atadisk 855 and atapi* are not used and won't affect operation in ATA_CAM mode. 856 Note that to use CAM-based ATA kernel should include CAM devices 857 scbus, pass, da (or explicitly ada), cd and optionally others. All of 858 them are parts of the cam module. 859 860 ataraid(4) functionality is now supported by the RAID GEOM class. 861 To use it you can load geom_raid kernel module and use graid(8) tool 862 for management. Instead of /dev/arX device names, use /dev/raid/rX. 863 864 No kernel config options or code have been removed, so if a problem 865 arises, please report it and optionally revert to the old ATA stack. 866 In order to do it you can remove from the kernel config: 867 options ATA_CAM 868 device ahci 869 device mvs 870 device siis 871 , and instead add back: 872 device atadisk # ATA disk drives 873 device ataraid # ATA RAID drives 874 device atapicd # ATAPI CDROM drives 875 device atapifd # ATAPI floppy drives 876 device atapist # ATAPI tape drives 877 87820110423: 879 The default NFS server has been changed to the new server, which 880 was referred to as the experimental server. If you need to switch 881 back to the old NFS server, you must now put the "-o" option on 882 both the mountd and nfsd commands. This can be done using the 883 mountd_flags and nfs_server_flags rc.conf variables until an 884 update to the rc scripts is committed, which is coming soon. 885 88620110418: 887 The GNU Objective-C runtime library (libobjc), and other Objective-C 888 related components have been removed from the base system. If you 889 require an Objective-C library, please use one of the available ports. 890 89120110331: 892 ath(4) has been split into bus- and device- modules. if_ath contains 893 the HAL, the TX rate control and the network device code. if_ath_pci 894 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 895 contains the AHB glue. Users need to load both if_ath_pci and if_ath 896 in order to use ath on everything else. 897 898 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 899 need to load if_ath and if_ath_pci for ath(4) operation. 900 90120110314: 902 As part of the replacement of sysinstall, the process of building 903 release media has changed significantly. For details, please re-read 904 release(7), which has been updated to reflect the new build process. 905 90620110218: 907 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 908 is the last available version under GPLv2. It brings a number of new 909 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 910 4.1 and SSE 4.2), better support for powerpc64, a number of new 911 directives, and lots of other small improvements. See the ChangeLog 912 file in contrib/binutils for the full details. 913 91420110218: 915 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 916 compliant, and will now use half of hash for authentication. 917 This will break interoperability with all stacks (including all 918 actual FreeBSD versions) who implement 919 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 920 authentication). 921 The only workaround with such peers is to use another HMAC 922 algorithm for IPsec ("phase 2") authentication. 923 92420110207: 925 Remove the uio_yield prototype and symbol. This function has 926 been misnamed since it was introduced and should not be 927 globally exposed with this name. The equivalent functionality 928 is now available using kern_yield(curthread->td_user_pri). 929 The function remains undocumented. 930 93120110112: 932 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 933 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 934 for scalar sysctls is defined but disabled. Code that needs 935 UQUAD to pass the type checking that must compile on older 936 systems where the define is not present can check against 937 __FreeBSD_version >= 900030. 938 939 The system dialog(1) has been replaced with a new version previously 940 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 941 with the previous version, but the libdialog associated with it has 942 a largely incompatible API. As such, the original version of libdialog 943 will be kept temporarily as libodialog, until its base system consumers 944 are replaced or updated. Bump __FreeBSD_version to 900030. 945 94620110103: 947 If you are trying to run make universe on a -stable system, and you get 948 the following warning: 949 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 950 unknown. config(8) likely too old." 951 or something similar to it, then you must upgrade your -stable system 952 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 953 stable/8) or build the config from the latest stable/8 branch and 954 install it on your system. 955 956 Prior to this date, building a current universe on 8-stable system from 957 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 958 error in the first kernel build phase. A new config on those old 959 systems will fix that problem for older versions of -current. 960 96120101228: 962 The TCP stack has been modified to allow Khelp modules to interact with 963 it via helper hook points and store per-connection data in the TCP 964 control block. Bump __FreeBSD_version to 900029. User space tools that 965 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 966 be recompiled. 967 96820101114: 969 Generic IEEE 802.3 annex 31B full duplex flow control support has been 970 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 971 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 972 to take advantage of it instead of using custom implementations. This 973 means that these drivers now no longer unconditionally advertise 974 support for flow control but only do so if flow control is a selected 975 media option. This was implemented in the generic support that way in 976 order to allow flow control to be switched on and off via ifconfig(8) 977 with the PHY specific default to typically off in order to protect 978 from unwanted effects. Consequently, if you used flow control with 979 one of the above mentioned drivers you now need to explicitly enable 980 it, for example via: 981 ifconfig bge0 media auto mediaopt flowcontrol 982 983 Along with the above mentioned changes generic support for setting 984 1000baseT master mode also has been added and brgphy(4), ciphy(4), 985 e1000phy(4) as well as ip1000phy(4) have been converted to take 986 advantage of it. This means that these drivers now no longer take the 987 link0 parameter for selecting master mode but the master media option 988 has to be used instead, for example like in the following: 989 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 990 991 Selection of master mode now is also available with all other PHY 992 drivers supporting 1000baseT. 993 99420101111: 995 The TCP stack has received a significant update to add support for 996 modularised congestion control and generally improve the clarity of 997 congestion control decisions. Bump __FreeBSD_version to 900025. User 998 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 999 sockstat) need to be recompiled. 1000 100120101002: 1002 The man(1) utility has been replaced by a new version that no longer 1003 uses /etc/manpath.config. Please consult man.conf(5) for how to 1004 migrate local entries to the new format. 1005 100620100928: 1007 The copyright strings printed by login(1) and sshd(8) at the time of a 1008 new connection have been removed to follow other operating systems and 1009 upstream sshd. 1010 101120100915: 1012 A workaround for a fixed ld bug has been removed in kernel code, 1013 so make sure that your system ld is built from sources after 1014 revision 210245 from 2010-07-19 (r211583 if building head kernel 1015 on stable/8, r211584 for stable/7; both from 2010-08-21). 1016 A symptom of incorrect ld version is different addresses for 1017 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1018 101920100913: 1020 The $ipv6_prefer variable in rc.conf(5) has been split into 1021 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1022 1023 The $ip6addrctl_policy is a variable to choose a pre-defined 1024 address selection policy set by ip6addrctl(8). A value 1025 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1026 default is "AUTO". 1027 1028 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1029 flag (see an entry of 20090926) is set on an interface with no 1030 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1031 security reason. If you want IPv6 link-local address on all 1032 interfaces by default, set this to "YES". 1033 1034 The old ipv6_prefer="YES" is equivalent to 1035 ipv6_activate_all_interfaces="YES" and 1036 ip6addrctl_policy="ipv6_prefer". 1037 103820100913: 1039 DTrace has grown support for userland tracing. Due to this, DTrace is 1040 now i386 and amd64 only. 1041 dtruss(1) is now installed by default on those systems and a new 1042 kernel module is needed for userland tracing: fasttrap. 1043 No changes to your kernel config file are necessary to enable 1044 userland tracing, but you might consider adding 'STRIP=' and 1045 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1046 to have informative userland stack traces in DTrace (ustack). 1047 104820100725: 1049 The acpi_aiboost(4) driver has been removed in favor of the new 1050 aibs(4) driver. You should update your kernel configuration file. 1051 105220100722: 1053 BSD grep has been imported to the base system and it is built by 1054 default. It is completely BSD licensed, highly GNU-compatible, uses 1055 less memory than its GNU counterpart and has a small codebase. 1056 However, it is slower than its GNU counterpart, which is mostly 1057 noticeable for larger searches, for smaller ones it is measurable 1058 but not significant. The reason is complex, the most important factor 1059 is that we lack a modern and efficient regex library and GNU 1060 overcomes this by optimizing the searches internally. Future work 1061 on improving the regex performance is planned, for the meantime, 1062 users that need better performance, can build GNU grep instead by 1063 setting the WITH_GNU_GREP knob. 1064 106520100713: 1066 Due to the import of powerpc64 support, all existing powerpc kernel 1067 configuration files must be updated with a machine directive like this: 1068 machine powerpc powerpc 1069 1070 In addition, an updated config(8) is required to build powerpc kernels 1071 after this change. 1072 107320100713: 1074 A new version of ZFS (version 15) has been merged to -HEAD. 1075 This version uses a python library for the following subcommands: 1076 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1077 For full functionality of these commands the following port must 1078 be installed: sysutils/py-zfs 1079 108020100429: 1081 'vm_page's are now hashed by physical address to an array of mutexes. 1082 Currently this is only used to serialize access to hold_count. Over 1083 time the page queue mutex will be peeled away. This changes the size 1084 of pmap on every architecture. And requires all callers of vm_page_hold 1085 and vm_page_unhold to be updated. 1086 108720100402: 1088 WITH_CTF can now be specified in src.conf (not recommended, there 1089 are some problems with static executables), make.conf (would also 1090 affect ports which do not use GNU make and do not override the 1091 compile targets) or in the kernel config (via "makeoptions 1092 WITH_CTF=yes"). 1093 When WITH_CTF was specified there before this was silently ignored, 1094 so make sure that WITH_CTF is not used in places which could lead 1095 to unwanted behavior. 1096 109720100311: 1098 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1099 to allow 32-bit compatibility on non-x86 platforms. All kernel 1100 configurations on amd64 and ia64 platforms using these options must 1101 be modified accordingly. 1102 110320100113: 1104 The utmp user accounting database has been replaced with utmpx, 1105 the user accounting interface standardized by POSIX. 1106 Unfortunately the semantics of utmp and utmpx don't match, 1107 making it practically impossible to support both interfaces. 1108 The user accounting database is used by tools like finger(1), 1109 last(1), talk(1), w(1) and ac(8). 1110 1111 All applications in the base system use utmpx. This means only 1112 local binaries (e.g. from the ports tree) may still use these 1113 utmp database files. These applications must be rebuilt to make 1114 use of utmpx. 1115 1116 After the system has been upgraded, it is safe to remove the old 1117 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1118 assuming their contents is of no importance anymore. Old wtmp 1119 databases can only be used by last(1) and ac(8) after they have 1120 been converted to the new format using wtmpcvt(1). 1121 112220100108: 1123 Introduce the kernel thread "deadlock resolver" (which can be enabled 1124 via the DEADLKRES option, see NOTES for more details) and the 1125 sleepq_type() function for sleepqueues. 1126 112720091202: 1128 The rc.firewall and rc.firewall6 were unified, and 1129 rc.firewall6 and rc.d/ip6fw were removed. 1130 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1131 variables are obsoleted. Instead, the following new rc 1132 variables are added to rc.d/ipfw: 1133 1134 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1135 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1136 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1137 1138 The meanings correspond to the relevant IPv4 variables. 1139 114020091125: 1141 8.0-RELEASE. 1142 114320091113: 1144 The default terminal emulation for syscons(4) has been changed 1145 from cons25 to xterm on all platforms except pc98. This means 1146 that the /etc/ttys file needs to be updated to ensure correct 1147 operation of applications on the console. 1148 1149 The terminal emulation style can be toggled per window by using 1150 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1151 options can be used to change the compile-time default back to 1152 cons25. 1153 1154 To prevent graphical artifacts, make sure the TERM environment 1155 variable is set to match the terminal emulation that is being 1156 performed by syscons(4). 1157 115820091109: 1159 The layout of the structure ieee80211req_scan_result has changed. 1160 Applications that require wireless scan results (e.g. ifconfig(8)) 1161 from net80211 need to be recompiled. 1162 1163 Applications such as wpa_supplicant(8) may require a full world 1164 build without using NO_CLEAN in order to get synchronized with the 1165 new structure. 1166 116720091025: 1168 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1169 There's one kernel module for each firmware. Adding "device iwnfw" 1170 to the kernel configuration file means including all three firmware 1171 images inside the kernel. If you want to include just the one for 1172 your wireless card, use the devices iwn4965fw, iwn5000fw or 1173 iwn5150fw. 1174 117520090926: 1176 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1177 into rc.d/netif. The changes are the following: 1178 1179 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1180 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1181 Note that both variables need the "inet6" keyword at the head. 1182 1183 Do not set $ipv6_network_interfaces manually if you do not 1184 understand what you are doing. It is not needed in most cases. 1185 1186 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1187 they are obsolete. 1188 1189 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1190 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1191 1192 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1193 all configured interfaces have "inet6 accept_rtadv" in the 1194 $ifconfig_IF_ipv6. These are for backward compatibility. 1195 1196 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1197 functionality of interfaces with no corresponding 1198 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1199 and the default address selection policy of ip6addrctl(8) 1200 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1201 Note that if you want to configure IPv6 functionality on the 1202 disabled interfaces after boot, first you need to clear the flag by 1203 using ifconfig(8) like: 1204 1205 ifconfig em0 inet6 -ifdisabled 1206 1207 If YES, the default address selection policy is set as 1208 IPv6-preferred. 1209 1210 The default value of $ipv6_prefer is NO. 1211 1212 4. If your system need to receive Router Advertisement messages, 1213 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1214 scripts automatically invoke rtsol(8) when the interface becomes 1215 UP. The Router Advertisement messages are used for SLAAC 1216 (State-Less Address AutoConfiguration). 1217 121820090922: 1219 802.11s D3.03 support was committed. This is incompatible with the 1220 previous code, which was based on D3.0. 1221 122220090912: 1223 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1224 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1225 control whether accepting Router Advertisement messages or not. 1226 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1227 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1228 The ifconfig(8) utility now supports these flags. 1229 123020090910: 1231 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1232 mount(8) and -a option for df(1) to see them. 1233 123420090825: 1235 The old tunable hw.bus.devctl_disable has been superseded by 1236 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1237 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1238 is 1000. 1239 124020090813: 1241 Remove the option STOP_NMI. The default action is now to use NMI only 1242 for KDB via the newly introduced function stop_cpus_hard() and 1243 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1244 124520090803: 1246 The stable/8 branch created in subversion. This corresponds to the 1247 RELENG_8 branch in CVS. 1248 124920090719: 1250 Bump the shared library version numbers for all libraries that do not 1251 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1252 __FreeBSD_version to 800105. 1253 125420090714: 1255 Due to changes in the implementation of virtual network stack support, 1256 all network-related kernel modules must be recompiled. As this change 1257 breaks the ABI, bump __FreeBSD_version to 800104. 1258 125920090713: 1260 The TOE interface to the TCP syncache has been modified to remove 1261 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1262 The cxgb driver is the only TOE consumer affected by this change, and 1263 needs to be recompiled along with the kernel. As this change breaks 1264 the ABI, bump __FreeBSD_version to 800103. 1265 126620090712: 1267 Padding has been added to struct tcpcb, sackhint and tcpstat in 1268 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1269 maintaining the ABI. However, this change breaks the ABI, so bump 1270 __FreeBSD_version to 800102. User space tools that rely on the size of 1271 any of these structs (e.g. sockstat) need to be recompiled. 1272 127320090630: 1274 The NFS_LEGACYRPC option has been removed along with the old kernel 1275 RPC implementation that this option selected. Kernel configurations 1276 may need to be adjusted. 1277 127820090629: 1279 The network interface device nodes at /dev/net/<interface> have been 1280 removed. All ioctl operations can be performed the normal way using 1281 routing sockets. The kqueue functionality can generally be replaced 1282 with routing sockets. 1283 128420090628: 1285 The documentation from the FreeBSD Documentation Project (Handbook, 1286 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1287 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1288 128920090624: 1290 The ABI of various structures related to the SYSV IPC API have been 1291 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1292 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1293 800100. 1294 129520090622: 1296 Layout of struct vnet has changed as routing related variables were 1297 moved to their own Vimage module. Modules need to be recompiled. Bump 1298 __FreeBSD_version to 800099. 1299 130020090619: 1301 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1302 respectively. As long as no more than 16 groups per process are used, 1303 no changes should be visible. When more than 16 groups are used, old 1304 binaries may fail if they call getgroups() or getgrouplist() with 1305 statically sized storage. Recompiling will work around this, but 1306 applications should be modified to use dynamically allocated storage 1307 for group arrays as POSIX.1-2008 does not cap an implementation's 1308 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1309 1310 NFS and portalfs mounts may also be affected as the list of groups is 1311 truncated to 16. Users of NFS who use more than 16 groups, should 1312 take care that negative group permissions are not used on the exported 1313 file systems as they will not be reliable unless a GSSAPI based 1314 authentication method is used. 1315 131620090616: 1317 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1318 option compiles in the support for adaptive spinning for lockmgrs 1319 which want to enable it. The lockinit() function now accepts the flag 1320 LK_ADAPTIVE in order to make the lock object subject to adaptive 1321 spinning when both held in write and read mode. 1322 132320090613: 1324 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1325 changed. User applications that use this ioctl need to be rebuilt. 1326 132720090611: 1328 The layout of struct thread has changed. Kernel and modules need to 1329 be rebuilt. 1330 133120090608: 1332 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1333 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1334 133520090602: 1336 window(1) has been removed from the base system. It can now be 1337 installed from ports. The port is called misc/window. 1338 133920090601: 1340 The way we are storing and accessing `routing table' entries has 1341 changed. Programs reading the FIB, like netstat, need to be 1342 re-compiled. 1343 134420090601: 1345 A new netisr implementation has been added for FreeBSD 8. Network 1346 file system modules, such as igmp, ipdivert, and others, should be 1347 rebuilt. 1348 Bump __FreeBSD_version to 800096. 1349 135020090530: 1351 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1352 more valid. 1353 135420090530: 1355 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1356 Bump __FreeBSD_version to 800094. 1357 135820090529: 1359 Add mnt_xflag field to 'struct mount'. File system modules need to be 1360 rebuilt. 1361 Bump __FreeBSD_version to 800093. 1362 136320090528: 1364 The compiling option ADAPTIVE_SX has been retired while it has been 1365 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1366 The KPI for sx_init_flags() changes as accepting flags: 1367 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1368 been introduced in order to handle the reversed logic. 1369 Bump __FreeBSD_version to 800092. 1370 137120090527: 1372 Add support for hierarchical jails. Remove global securelevel. 1373 Bump __FreeBSD_version to 800091. 1374 137520090523: 1376 The layout of struct vnet_net has changed, therefore modules 1377 need to be rebuilt. 1378 Bump __FreeBSD_version to 800090. 1379 138020090523: 1381 The newly imported zic(8) produces a new format in the output. Please 1382 run tzsetup(8) to install the newly created data to /etc/localtime. 1383 138420090520: 1385 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1386 hw.usb.* and is now consistent again with previous releases. 1387 138820090520: 1389 802.11 monitor mode support was revised and driver api's were changed. 1390 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1391 of DLT_IEEE802_11. No user-visible data structures were changed but 1392 applications that use DLT_IEEE802_11 may require changes. 1393 Bump __FreeBSD_version to 800088. 1394 139520090430: 1396 The layout of the following structs has changed: sysctl_oid, 1397 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1398 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1399 panics may be experienced. World rebuild is required for 1400 correctly checking networking state from userland. 1401 Bump __FreeBSD_version to 800085. 1402 140320090429: 1404 MLDv2 and Source-Specific Multicast (SSM) have been merged 1405 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1406 The implementation of SSM within FreeBSD's IPv6 stack closely 1407 follows the IPv4 implementation. 1408 1409 For kernel developers: 1410 1411 * The most important changes are that the ip6_output() and 1412 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1413 and this lock has been downgraded to a non-recursive mutex. 1414 1415 * As with the changes to the IPv4 stack to support SSM, filtering 1416 of inbound multicast traffic must now be performed by transport 1417 protocols within the IPv6 stack. This does not apply to TCP and 1418 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1419 1420 * The KPIs used by IPv6 multicast are similar to those used by 1421 the IPv4 stack, with the following differences: 1422 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1423 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1424 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1425 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1426 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1427 for MLDv1 have an additional 'timer' argument which is used to 1428 jitter the initial membership report for the solicited-node 1429 multicast membership on-link. 1430 * This is not strictly needed for MLDv2, which already jitters 1431 its report transmissions. However, the 'timer' argument is 1432 preserved in case MLDv1 is active on the interface. 1433 1434 * The KAME linked-list based IPv6 membership implementation has 1435 been refactored to use a vector similar to that used by the IPv4 1436 stack. 1437 Code which maintains a list of its own multicast memberships 1438 internally, e.g. carp, has been updated to reflect the new 1439 semantics. 1440 1441 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1442 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1443 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1444 implementation constraint which needs to be addressed in HEAD. 1445 1446 For application developers: 1447 1448 * The changes are broadly similar to those made for the IPv4 1449 stack. 1450 1451 * The use of IPv4 and IPv6 multicast socket options on the same 1452 socket, using mapped addresses, HAS NOT been tested or supported. 1453 1454 * There are a number of issues with the implementation of various 1455 IPv6 multicast APIs which need to be resolved in the API surface 1456 before the implementation is fully compatible with KAME userland 1457 use, and these are mostly to do with interface index treatment. 1458 1459 * The literature available discusses the use of either the delta / ASM 1460 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1461 using setsourcefilter(3)/getsourcefilter(3). For more information 1462 please refer to RFC 3768, 'Socket Interface Extensions for 1463 Multicast Source Filters'. 1464 1465 * Applications which use the published RFC 3678 APIs should be fine. 1466 1467 For systems administrators: 1468 1469 * The mtest(8) utility has been refactored to support IPv6, in 1470 addition to IPv4. Interface addresses are no longer accepted 1471 as arguments, their names must be used instead. The utility 1472 will map the interface name to its first IPv4 address as 1473 returned by getifaddrs(3). 1474 1475 * The ifmcstat(8) utility has also been updated to print the MLDv2 1476 endpoint state and source filter lists via sysctl(3). 1477 1478 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1479 loopback of IPv6 multicast datagrams by default; it defaults to 1 1480 to preserve the existing behaviour. Disabling multicast loopback is 1481 recommended for optimal system performance. 1482 1483 * The IPv6 MROUTING code has been changed to examine this sysctl 1484 instead of attempting to perform a group lookup before looping 1485 back forwarded datagrams. 1486 1487 Bump __FreeBSD_version to 800084. 1488 148920090422: 1490 Implement low-level Bluetooth HCI API. 1491 Bump __FreeBSD_version to 800083. 1492 149320090419: 1494 The layout of struct malloc_type, used by modules to register new 1495 memory allocation types, has changed. Most modules will need to 1496 be rebuilt or panics may be experienced. 1497 Bump __FreeBSD_version to 800081. 1498 149920090415: 1500 Anticipate overflowing inp_flags - add inp_flags2. 1501 This changes most offsets in inpcb, so checking v4 connection 1502 state will require a world rebuild. 1503 Bump __FreeBSD_version to 800080. 1504 150520090415: 1506 Add an llentry to struct route and struct route_in6. Modules 1507 embedding a struct route will need to be recompiled. 1508 Bump __FreeBSD_version to 800079. 1509 151020090414: 1511 The size of rt_metrics_lite and by extension rtentry has changed. 1512 Networking administration apps will need to be recompiled. 1513 The route command now supports show as an alias for get, weighting 1514 of routes, sticky and nostick flags to alter the behavior of stateful 1515 load balancing. 1516 Bump __FreeBSD_version to 800078. 1517 151820090408: 1519 Do not use Giant for kbdmux(4) locking. This is wrong and 1520 apparently causing more problems than it solves. This will 1521 re-open the issue where interrupt handlers may race with 1522 kbdmux(4) in polling mode. Typical symptoms include (but 1523 not limited to) duplicated and/or missing characters when 1524 low level console functions (such as gets) are used while 1525 interrupts are enabled (for example geli password prompt, 1526 mountroot prompt etc.). Disabling kbdmux(4) may help. 1527 152820090407: 1529 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1530 kernel modules referencing any of the above need to be recompiled. 1531 Bump __FreeBSD_version to 800075. 1532 153320090320: 1534 GEOM_PART has become the default partition slicer for storage devices, 1535 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1536 introduces some changes: 1537 1538 MSDOS/EBR: the devices created from MSDOS extended partition entries 1539 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1540 to devices with offset-based names. fstabs may need to be modified. 1541 1542 BSD: the "geometry does not match label" warning is harmless in most 1543 cases but it points to problems in file system misalignment with 1544 disk geometry. The "c" partition is now implicit, covers the whole 1545 top-level drive and cannot be (mis)used by users. 1546 1547 General: Kernel dumps are now not allowed to be written to devices 1548 whose partition types indicate they are meant to be used for file 1549 systems (or, in case of MSDOS partitions, as something else than 1550 the "386BSD" type). 1551 1552 Most of these changes date approximately from 200812. 1553 155420090319: 1555 The uscanner(4) driver has been removed from the kernel. This follows 1556 Linux removing theirs in 2.6 and making libusb the default interface 1557 (supported by sane). 1558 155920090319: 1560 The multicast forwarding code has been cleaned up. netstat(1) 1561 only relies on KVM now for printing bandwidth upcall meters. 1562 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1563 ip6_mroute_mod respectively. The config(5) options for statically 1564 compiling this code remain the same, i.e. 'options MROUTING'. 1565 156620090315: 1567 Support for the IFF_NEEDSGIANT network interface flag has been 1568 removed, which means that non-MPSAFE network device drivers are no 1569 longer supported. In particular, if_ar, if_sr, and network device 1570 drivers from the old (legacy) USB stack can no longer be built or 1571 used. 1572 157320090313: 1574 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1575 a bunch of new language catalog files have also been added. 1576 This means that some common libc messages are now localized and 1577 they depend on the LC_MESSAGES environmental variable. 1578 157920090313: 1580 The k8temp(4) driver has been renamed to amdtemp(4) since 1581 support for Family 10 and Family 11 CPU families was added. 1582 158320090309: 1584 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1585 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1586 1587 For kernel developers, the most important changes are that the 1588 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1589 and this lock has been downgraded to a non-recursive mutex. 1590 1591 Transport protocols (UDP, Raw IP) are now responsible for filtering 1592 inbound multicast traffic according to group membership and source 1593 filters. The imo_multicast_filter() KPI exists for this purpose. 1594 Transports which do not use multicast (SCTP, TCP) already reject 1595 multicast by default. Forwarding and receive performance may improve 1596 as a mutex acquisition is no longer needed in the ip_input() 1597 low-level input path. in_addmulti() and in_delmulti() are shimmed 1598 to new KPIs which exist to support SSM in-kernel. 1599 1600 For application developers, it is recommended that loopback of 1601 multicast datagrams be disabled for best performance, as this 1602 will still cause the lock to be taken for each looped-back 1603 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1604 be tuned to 0 to disable loopback by default; it defaults to 1 1605 to preserve the existing behaviour. 1606 1607 For systems administrators, to obtain best performance with 1608 multicast reception and multiple groups, it is always recommended 1609 that a card with a suitably precise hash filter is used. Hash 1610 collisions will still result in the lock being taken within the 1611 transport protocol input path to check group membership. 1612 1613 If deploying FreeBSD in an environment with IGMP snooping switches, 1614 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1615 enabled; this forces 224.0.0.0/24 group membership to be announced 1616 via IGMP. 1617 1618 The size of 'struct igmpstat' has changed; netstat needs to be 1619 recompiled to reflect this. 1620 Bump __FreeBSD_version to 800070. 1621 162220090309: 1623 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1624 updated to use it. This requires a buildworld/installworld in order to 1625 update the library and dependencies (usbconfig, etc). Its advisable to 1626 rebuild all ports which uses libusb. More specific directions are given 1627 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1628 libusb are no longer required and can be removed. 1629 163020090302: 1631 A workaround is committed to allow the creation of System V shared 1632 memory segment of size > 2 GB on the 64-bit architectures. 1633 Due to a limitation of the existing ABI, the shm_segsz member 1634 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1635 wrong for large segments. Note that limits must be explicitly 1636 raised to allow such segments to be created. 1637 163820090301: 1639 The layout of struct ifnet has changed, requiring a rebuild of all 1640 network device driver modules. 1641 164220090227: 1643 The /dev handling for the new USB stack has changed, a 1644 buildworld/installworld is required for libusb20. 1645 164620090223: 1647 The new USB2 stack has now been permanently moved in and all kernel and 1648 module names reverted to their previous values (eg, usb, ehci, ohci, 1649 ums, ...). The old usb stack can be compiled in by prefixing the name 1650 with the letter 'o', the old usb modules have been removed. 1651 Updating entry 20090216 for xorg and 20090215 for libmap may still 1652 apply. 1653 165420090217: 1655 The rc.conf(5) option if_up_delay has been renamed to 1656 defaultroute_delay to better reflect its purpose. If you have 1657 customized this setting in /etc/rc.conf you need to update it to 1658 use the new name. 1659 166020090216: 1661 xorg 7.4 wants to configure its input devices via hald which does not 1662 yet work with USB2. If the keyboard/mouse does not work in xorg then 1663 add 1664 Option "AllowEmptyInput" "off" 1665 to your ServerLayout section. This will cause X to use the configured 1666 kbd and mouse sections from your xorg.conf. 1667 166820090215: 1669 The GENERIC kernels for all architectures now default to the new USB2 1670 stack. No kernel config options or code have been removed so if a 1671 problem arises please report it and optionally revert to the old USB 1672 stack. If you are loading USB kernel modules or have a custom kernel 1673 that includes GENERIC then ensure that usb names are also changed over, 1674 eg uftdi -> usb2_serial_ftdi. 1675 1676 Older programs linked against the ports libusb 0.1 need to be 1677 redirected to the new stack's libusb20. /etc/libmap.conf can 1678 be used for this: 1679 # Map old usb library to new one for usb2 stack 1680 libusb-0.1.so.8 libusb20.so.1 1681 168220090209: 1683 All USB ethernet devices now attach as interfaces under the name ueN 1684 (eg. ue0). This is to provide a predictable name as vendors often 1685 change usb chipsets in a product without notice. 1686 168720090203: 1688 The ichsmb(4) driver has been changed to require SMBus slave 1689 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1690 All of the other SMBus controller drivers require left-justified 1691 slave addresses, so this change makes all the drivers provide the 1692 same interface. 1693 169420090201: 1695 INET6 statistics (struct ip6stat) was updated. 1696 netstat(1) needs to be recompiled. 1697 169820090119: 1699 NTFS has been removed from GENERIC kernel on amd64 to match 1700 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1701 will load ntfs.ko module automatically when NTFS support is 1702 actually needed, unless ntfs.ko is not installed or security 1703 level prohibits loading kernel modules. If either is the case, 1704 "options NTFS" has to be added into kernel config. 1705 170620090115: 1707 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1708 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1709 800061. User space tools that rely on the size of struct tcpcb in 1710 tcp_var.h (e.g. sockstat) need to be recompiled. 1711 171220081225: 1713 ng_tty(4) module updated to match the new TTY subsystem. 1714 Due to API change, user-level applications must be updated. 1715 New API support added to mpd5 CVS and expected to be present 1716 in next mpd5.3 release. 1717 171820081219: 1719 With __FreeBSD_version 800060 the makefs tool is part of 1720 the base system (it was a port). 1721 172220081216: 1723 The afdata and ifnet locks have been changed from mutexes to 1724 rwlocks, network modules will need to be re-compiled. 1725 172620081214: 1727 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1728 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1729 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1730 architecture and 40 bytes on 64-bit architecture. The userland 1731 applications "arp" and "ndp" have been updated accordingly. 1732 The output from "netstat -r" shows only routing entries and 1733 none of the L2 information. 1734 173520081130: 1736 __FreeBSD_version 800057 marks the switchover from the 1737 binary ath hal to source code. Users must add the line: 1738 1739 options AH_SUPPORT_AR5416 1740 1741 to their kernel config files when specifying: 1742 1743 device ath_hal 1744 1745 The ath_hal module no longer exists; the code is now compiled 1746 together with the driver in the ath module. It is now 1747 possible to tailor chip support (i.e. reduce the set of chips 1748 and thereby the code size); consult ath_hal(4) for details. 1749 175020081121: 1751 __FreeBSD_version 800054 adds memory barriers to 1752 <machine/atomic.h>, new interfaces to ifnet to facilitate 1753 multiple hardware transmit queues for cards that support 1754 them, and a lock-less ring-buffer implementation to 1755 enable drivers to more efficiently manage queueing of 1756 packets. 1757 175820081117: 1759 A new version of ZFS (version 13) has been merged to -HEAD. 1760 This version has zpool attribute "listsnapshots" off by 1761 default, which means "zfs list" does not show snapshots, 1762 and is the same as Solaris behavior. 1763 176420081028: 1765 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1766 176720081009: 1768 The uhci, ohci, ehci and slhci USB Host controller drivers have 1769 been put into separate modules. If you load the usb module 1770 separately through loader.conf you will need to load the 1771 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1772 controller add the following to loader.conf: 1773 1774 uhci_load="YES" 1775 ehci_load="YES" 1776 177720081009: 1778 The ABI used by the PMC toolset has changed. Please keep 1779 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1780 sync. 1781 178220081009: 1783 atapci kernel module now includes only generic PCI ATA 1784 driver. AHCI driver moved to ataahci kernel module. 1785 All vendor-specific code moved into separate kernel modules: 1786 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1787 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1788 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1789 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1790 179120080820: 1792 The TTY subsystem of the kernel has been replaced by a new 1793 implementation, which provides better scalability and an 1794 improved driver model. Most common drivers have been migrated to 1795 the new TTY subsystem, while others have not. The following 1796 drivers have not yet been ported to the new TTY layer: 1797 1798 PCI/ISA: 1799 cy, digi, rc, rp, sio 1800 1801 USB: 1802 ubser, ucycom 1803 1804 Line disciplines: 1805 ng_h4, ng_tty, ppp, sl, snp 1806 1807 Adding these drivers to your kernel configuration file shall 1808 cause compilation to fail. 1809 181020080818: 1811 ntpd has been upgraded to 4.2.4p5. 1812 181320080801: 1814 OpenSSH has been upgraded to 5.1p1. 1815 1816 For many years, FreeBSD's version of OpenSSH preferred DSA 1817 over RSA for host and user authentication keys. With this 1818 upgrade, we've switched to the vendor's default of RSA over 1819 DSA. This may cause upgraded clients to warn about unknown 1820 host keys even for previously known hosts. Users should 1821 follow the usual procedure for verifying host keys before 1822 accepting the RSA key. 1823 1824 This can be circumvented by setting the "HostKeyAlgorithms" 1825 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1826 command line. 1827 1828 Please note that the sequence of keys offered for 1829 authentication has been changed as well. You may want to 1830 specify IdentityFile in a different order to revert this 1831 behavior. 1832 183320080713: 1834 The sio(4) driver has been removed from the i386 and amd64 1835 kernel configuration files. This means uart(4) is now the 1836 default serial port driver on those platforms as well. 1837 1838 To prevent collisions with the sio(4) driver, the uart(4) driver 1839 uses different names for its device nodes. This means the 1840 onboard serial port will now most likely be called "ttyu0" 1841 instead of "ttyd0". You may need to reconfigure applications to 1842 use the new device names. 1843 1844 When using the serial port as a boot console, be sure to update 1845 /boot/device.hints and /etc/ttys before booting the new kernel. 1846 If you forget to do so, you can still manually specify the hints 1847 at the loader prompt: 1848 1849 set hint.uart.0.at="isa" 1850 set hint.uart.0.port="0x3F8" 1851 set hint.uart.0.flags="0x10" 1852 set hint.uart.0.irq="4" 1853 boot -s 1854 185520080609: 1856 The gpt(8) utility has been removed. Use gpart(8) to partition 1857 disks instead. 1858 185920080603: 1860 The version that Linuxulator emulates was changed from 2.4.2 1861 to 2.6.16. If you experience any problems with Linux binaries 1862 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1863 if it fixes the problem contact emulation mailing list. 1864 186520080525: 1866 ISDN4BSD (I4B) was removed from the src tree. You may need to 1867 update a your kernel configuration and remove relevant entries. 1868 186920080509: 1870 I have checked in code to support multiple routing tables. 1871 See the man pages setfib(1) and setfib(2). 1872 This is a hopefully backwards compatible version, 1873 but to make use of it you need to compile your kernel 1874 with options ROUTETABLES=2 (or more up to 16). 1875 187620080420: 1877 The 802.11 wireless support was redone to enable multi-bss 1878 operation on devices that are capable. The underlying device 1879 is no longer used directly but instead wlanX devices are 1880 cloned with ifconfig. This requires changes to rc.conf files. 1881 For example, change: 1882 ifconfig_ath0="WPA DHCP" 1883 to 1884 wlans_ath0=wlan0 1885 ifconfig_wlan0="WPA DHCP" 1886 see rc.conf(5) for more details. In addition, mergemaster of 1887 /etc/rc.d is highly recommended. Simultaneous update of userland 1888 and kernel wouldn't hurt either. 1889 1890 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1891 modules were merged into the base wlan module. All references 1892 to these modules (e.g. in kernel config files) must be removed. 1893 189420080408: 1895 psm(4) has gained write(2) support in native operation level. 1896 Arbitrary commands can be written to /dev/psm%d and status can 1897 be read back from it. Therefore, an application is responsible 1898 for status validation and error recovery. It is a no-op in 1899 other operation levels. 1900 190120080312: 1902 Support for KSE threading has been removed from the kernel. To 1903 run legacy applications linked against KSE libmap.conf may 1904 be used. The following libmap.conf may be used to ensure 1905 compatibility with any prior release: 1906 1907 libpthread.so.1 libthr.so.1 1908 libpthread.so.2 libthr.so.2 1909 libkse.so.3 libthr.so.3 1910 191120080301: 1912 The layout of struct vmspace has changed. This affects libkvm 1913 and any executables that link against libkvm and use the 1914 kvm_getprocs() function. In particular, but not exclusively, 1915 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1916 The effects are minimal, but it's advisable to upgrade world 1917 nonetheless. 1918 191920080229: 1920 The latest em driver no longer has support in it for the 1921 82575 adapter, this is now moved to the igb driver. The 1922 split was done to make new features that are incompatible 1923 with older hardware easier to do. 1924 192520080220: 1926 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1927 likewise the kernel option is now GEOM_LINUX_LVM. 1928 192920080211: 1930 The default NFS mount mode has changed from UDP to TCP for 1931 increased reliability. If you rely on (insecurely) NFS 1932 mounting across a firewall you may need to update your 1933 firewall rules. 1934 193520080208: 1936 Belatedly note the addition of m_collapse for compacting 1937 mbuf chains. 1938 193920080126: 1940 The fts(3) structures have been changed to use adequate 1941 integer types for their members and so to be able to cope 1942 with huge file trees. The old fts(3) ABI is preserved 1943 through symbol versioning in libc, so third-party binaries 1944 using fts(3) should still work, although they will not take 1945 advantage of the extended types. At the same time, some 1946 third-party software might fail to build after this change 1947 due to unportable assumptions made in its source code about 1948 fts(3) structure members. Such software should be fixed 1949 by its vendor or, in the worst case, in the ports tree. 1950 FreeBSD_version 800015 marks this change for the unlikely 1951 case that a portable fix is impossible. 1952 195320080123: 1954 To upgrade to -current after this date, you must be running 1955 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1956 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1957 195820071128: 1959 The ADAPTIVE_GIANT kernel option has been retired because its 1960 functionality is the default now. 1961 196220071118: 1963 The AT keyboard emulation of sunkbd(4) has been turned on 1964 by default. In order to make the special symbols of the Sun 1965 keyboards driven by sunkbd(4) work under X these now have 1966 to be configured the same way as Sun USB keyboards driven 1967 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1968 1969 Option "XkbLayout" "us" 1970 Option "XkbRules" "xorg" 1971 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1972 197320071024: 1974 It has been decided that it is desirable to provide ABI 1975 backwards compatibility to the FreeBSD 4/5/6 versions of the 1976 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1977 broken with the introduction of PCI domain support (see the 1978 20070930 entry). Unfortunately, this required the ABI of 1979 PCIOCGETCONF to be broken again in order to be able to 1980 provide backwards compatibility to the old version of that 1981 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1982 again. As for prominent ports this affects neither pciutils 1983 nor xorg-server this time, the hal port needs to be rebuilt 1984 however. 1985 198620071020: 1987 The misnamed kthread_create() and friends have been renamed 1988 to kproc_create() etc. Many of the callers already 1989 used kproc_start().. 1990 I will return kthread_create() and friends in a while 1991 with implementations that actually create threads, not procs. 1992 Renaming corresponds with version 800002. 1993 199420071010: 1995 RELENG_7 branched. 1996 1997COMMON ITEMS: 1998 1999 General Notes 2000 ------------- 2001 Avoid using make -j when upgrading. While generally safe, there are 2002 sometimes problems using -j to upgrade. If your upgrade fails with 2003 -j, please try again without -j. From time to time in the past there 2004 have been problems using -j with buildworld and/or installworld. This 2005 is especially true when upgrading between "distant" versions (eg one 2006 that cross a major release boundary or several minor releases, or when 2007 several months have passed on the -current branch). 2008 2009 Sometimes, obscure build problems are the result of environment 2010 poisoning. This can happen because the make utility reads its 2011 environment when searching for values for global variables. To run 2012 your build attempts in an "environmental clean room", prefix all make 2013 commands with 'env -i '. See the env(1) manual page for more details. 2014 2015 When upgrading from one major version to another it is generally best 2016 to upgrade to the latest code in the currently installed branch first, 2017 then do an upgrade to the new branch. This is the best-tested upgrade 2018 path, and has the highest probability of being successful. Please try 2019 this approach before reporting problems with a major version upgrade. 2020 2021 When upgrading a live system, having a root shell around before 2022 installing anything can help undo problems. Not having a root shell 2023 around can lead to problems if pam has changed too much from your 2024 starting point to allow continued authentication after the upgrade. 2025 2026 ZFS notes 2027 --------- 2028 When upgrading the boot ZFS pool to a new version, always follow 2029 these two steps: 2030 2031 1.) recompile and reinstall the ZFS boot loader and boot block 2032 (this is part of "make buildworld" and "make installworld") 2033 2034 2.) update the ZFS boot block on your boot drive 2035 2036 The following example updates the ZFS boot block on the first 2037 partition (freebsd-boot) of a GPT partitioned drive ad0: 2038 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2039 2040 Non-boot pools do not need these updates. 2041 2042 To build a kernel 2043 ----------------- 2044 If you are updating from a prior version of FreeBSD (even one just 2045 a few days old), you should follow this procedure. It is the most 2046 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2047 2048 make kernel-toolchain 2049 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2050 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2051 2052 To test a kernel once 2053 --------------------- 2054 If you just want to boot a kernel once (because you are not sure 2055 if it works, or if you want to boot a known bad kernel to provide 2056 debugging information) run 2057 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2058 nextboot -k testkernel 2059 2060 To just build a kernel when you know that it won't mess you up 2061 -------------------------------------------------------------- 2062 This assumes you are already running a CURRENT system. Replace 2063 ${arch} with the architecture of your machine (e.g. "i386", 2064 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2065 2066 cd src/sys/${arch}/conf 2067 config KERNEL_NAME_HERE 2068 cd ../compile/KERNEL_NAME_HERE 2069 make depend 2070 make 2071 make install 2072 2073 If this fails, go to the "To build a kernel" section. 2074 2075 To rebuild everything and install it on the current system. 2076 ----------------------------------------------------------- 2077 # Note: sometimes if you are running current you gotta do more than 2078 # is listed here if you are upgrading from a really old current. 2079 2080 <make sure you have good level 0 dumps> 2081 make buildworld 2082 make kernel KERNCONF=YOUR_KERNEL_HERE 2083 [1] 2084 <reboot in single user> [3] 2085 mergemaster -p [5] 2086 make installworld 2087 mergemaster -i [4] 2088 make delete-old [6] 2089 <reboot> 2090 2091 To cross-install current onto a separate partition 2092 -------------------------------------------------- 2093 # In this approach we use a separate partition to hold 2094 # current's root, 'usr', and 'var' directories. A partition 2095 # holding "/", "/usr" and "/var" should be about 2GB in 2096 # size. 2097 2098 <make sure you have good level 0 dumps> 2099 <boot into -stable> 2100 make buildworld 2101 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2102 <maybe newfs current's root partition> 2103 <mount current's root partition on directory ${CURRENT_ROOT}> 2104 make installworld DESTDIR=${CURRENT_ROOT} 2105 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2106 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2107 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2108 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2109 <reboot into current> 2110 <do a "native" rebuild/install as described in the previous section> 2111 <maybe install compatibility libraries from ports/misc/compat*> 2112 <reboot> 2113 2114 2115 To upgrade in-place from stable to current 2116 ---------------------------------------------- 2117 <make sure you have good level 0 dumps> 2118 make buildworld [9] 2119 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2120 [1] 2121 <reboot in single user> [3] 2122 mergemaster -p [5] 2123 make installworld 2124 mergemaster -i [4] 2125 make delete-old [6] 2126 <reboot> 2127 2128 Make sure that you've read the UPDATING file to understand the 2129 tweaks to various things you need. At this point in the life 2130 cycle of current, things change often and you are on your own 2131 to cope. The defaults can also change, so please read ALL of 2132 the UPDATING entries. 2133 2134 Also, if you are tracking -current, you must be subscribed to 2135 freebsd-current@freebsd.org. Make sure that before you update 2136 your sources that you have read and understood all the recent 2137 messages there. If in doubt, please track -stable which has 2138 much fewer pitfalls. 2139 2140 [1] If you have third party modules, such as vmware, you 2141 should disable them at this point so they don't crash your 2142 system on reboot. 2143 2144 [3] From the bootblocks, boot -s, and then do 2145 fsck -p 2146 mount -u / 2147 mount -a 2148 cd src 2149 adjkerntz -i # if CMOS is wall time 2150 Also, when doing a major release upgrade, it is required that 2151 you boot into single user mode to do the installworld. 2152 2153 [4] Note: This step is non-optional. Failure to do this step 2154 can result in a significant reduction in the functionality of the 2155 system. Attempting to do it by hand is not recommended and those 2156 that pursue this avenue should read this file carefully, as well 2157 as the archives of freebsd-current and freebsd-hackers mailing lists 2158 for potential gotchas. The -U option is also useful to consider. 2159 See mergemaster(8) for more information. 2160 2161 [5] Usually this step is a noop. However, from time to time 2162 you may need to do this if you get unknown user in the following 2163 step. It never hurts to do it all the time. You may need to 2164 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2165 install) after the buildworld before this step if you last updated 2166 from current before 20130425 or from -stable before 20130430. 2167 2168 [6] This only deletes old files and directories. Old libraries 2169 can be deleted by "make delete-old-libs", but you have to make 2170 sure that no program is using those libraries anymore. 2171 2172 [8] In order to have a kernel that can run the 4.x binaries needed to 2173 do an installworld, you must include the COMPAT_FREEBSD4 option in 2174 your kernel. Failure to do so may leave you with a system that is 2175 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2176 required to run the 5.x binaries on more recent kernels. And so on 2177 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2178 2179 Make sure that you merge any new devices from GENERIC since the 2180 last time you updated your kernel config file. 2181 2182 [9] When checking out sources, you must include the -P flag to have 2183 cvs prune empty directories. 2184 2185 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2186 "?=" instead of the "=" assignment operator, so that buildworld can 2187 override the CPUTYPE if it needs to. 2188 2189 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2190 not on the command line, or in /etc/make.conf. buildworld will 2191 warn if it is improperly defined. 2192FORMAT: 2193 2194This file contains a list, in reverse chronological order, of major 2195breakages in tracking -current. It is not guaranteed to be a complete 2196list of such breakages, and only contains entries since October 10, 2007. 2197If you need to see UPDATING entries from before that date, you will need 2198to fetch an UPDATING file from an older FreeBSD release. 2199 2200Copyright information: 2201 2202Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2203 2204Redistribution, publication, translation and use, with or without 2205modification, in full or in part, in any form or format of this 2206document are permitted without further permission from the author. 2207 2208THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2209IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2210WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2211DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2212INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2213(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2214SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2215HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2216STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2217IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2218POSSIBILITY OF SUCH DAMAGE. 2219 2220Contact Warner Losh if you have any questions about your use of 2221this document. 2222 2223$FreeBSD: releng/10.2/UPDATING 286665 2015-08-12 14:08:06Z gjb $ 2224