UPDATING revision 285206
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 1920150703: 20 The default Unbound configuration now enables remote control 21 using a local socket. Users who have already enabled the 22 local_unbound service should regenerate their configuration 23 by running "service local_unbound setup" as root. 24 2520150624: 26 An additional fix for the issue described in the 20150614 sendmail 27 entry below has been been committed in revision 284786. 28 2920150615: 30 The fix for the issue described in the 20150614 sendmail entry 31 below has been been committed in revision 284485. The work 32 around described in that entry is no longer needed unless the 33 default setting is overridden by a confDH_PARAMETERS configuration 34 setting of '5' or pointing to a 512 bit DH parameter file. 35 3620150614: 37 The import of openssl to address the FreeBSD-SA-15:10.openssl 38 security advisory includes a change which rejects handshakes 39 with DH parameters below 768 bits. sendmail releases prior 40 to 8.15.2 (not yet released), defaulted to a 512 bit 41 DH parameter setting for client connections. To work around 42 this interoperability, sendmail can be configured to use a 43 2048 bit DH parameter by: 44 45 1. Edit /etc/mail/`hostname`.mc 46 2. If a setting for confDH_PARAMETERS does not exist or 47 exists and is set to a string beginning with '5', 48 replace it with '2'. 49 3. If a setting for confDH_PARAMETERS exists and is set to 50 a file path, create a new file with: 51 openssl dhparam -out /path/to/file 2048 52 4. Rebuild the .cf file: 53 cd /etc/mail/; make; make install 54 5. Restart sendmail: 55 cd /etc/mail/; make restart 56 57 A sendmail patch is coming, at which time this file will be 58 updated. 59 6020150601: 61 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 62 defined in symlink(7); previously symlinks were silently ignored. 63 6420150430: 65 The const qualifier has been removed from iconv(3) to comply with 66 POSIX. The ports tree is aware of this from r384038 onwards. 67 6820141215: 69 At svn r275807, The default linux compat kernel ABI has been adjusted 70 to 2.6.18 in support of the linux-c6 compat ports infrastructure 71 update. If you wish to continue using the linux-f10 compat ports, 72 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 73 encouraged to update their linux-compat packages to linux-c6 during 74 their next update cycle. 75 76 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 77 7820141205: 79 pjdfstest has been integrated into kyua as an opt-in test suite. 80 Please see share/doc/pjdfstest/README for a more details on how to 81 execute it. 82 8320141118: 84 10.1-RELEASE. 85 8620140904: 87 The ofwfb driver, used to provide a graphics console on PowerPC when 88 using vt(4), no longer allows mmap() of all of physical memory. This 89 will prevent Xorg on PowerPC with some ATI graphics cards from 90 initializing properly unless x11-servers/xorg-server is updated to 91 1.12.4_8 or newer. 92 9320140831: 94 The libatf-c and libatf-c++ major versions were downgraded to 0 and 95 1 respectively to match the upstream numbers. They were out of 96 sync because, when they were originally added to FreeBSD, the 97 upstream versions were not respected. These libraries are private 98 and not yet built by default, so renumbering them should be a 99 non-issue. However, unclean source trees will yield broken test 100 programs once the operator executes "make delete-old-libs" after a 101 "make installworld". 102 103 Additionally, the atf-sh binary was made private by moving it into 104 /usr/libexec/. Already-built shell test programs will keep the 105 path to the old binary so they will break after "make delete-old" 106 is run. 107 108 If you are using WITH_TESTS=yes (not the default), wipe the object 109 tree and rebuild from scratch to prevent spurious test failures. 110 This is only needed once: the misnumbered libraries and misplaced 111 binaries have been added to OptionalObsoleteFiles.inc so they will 112 be removed during a clean upgrade. 113 11420140814: 115 The ixgbe tunables now match their sysctl counterparts, for example: 116 hw.ixgbe.enable_aim => hw.ix.enable_aim 117 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 118 11920140801: 120 The NFSv4.1 server committed by r269398 changes the internal 121 function call interfaces used between the NFS and krpc modules. 122 As such, __FreeBSD_version was bumped. 123 12420140729: 125 The default unbound configuration has been modified to address 126 issues with reverse lookups on networks that use private 127 address ranges. If you use the local_unbound service, run 128 "service local_unbound setup" as root to regenerate your 129 configuration, then "service local_unbound reload" to load the 130 new configuration. 131 13220140717: 133 It is no longer necessary to include the dwarf version in your DEBUG 134 options in your kernel config file. The bug that required it to be 135 placed in the config file has bene fixed. DEBUG should now just 136 contain -g. The build system will automatically update things 137 to do the right thing. 138 13920140715: 140 Several ABI breaking changes were merged to CTL and new iSCSI code. 141 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 142 iscsictl need to be rebuilt to work with a new kernel. 143 14420140708: 145 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 146 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 147 which differs from the behaviour controlled by this knob.) 148 14920140608: 150 On i386 and amd64 systems, the onifconsole flag is now set by default 151 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 152 as a login TTY if it is set in the bootloader as an active kernel 153 console. No changes in behavior should result otherwise. To revert to 154 the previous behavior, set ttyu0 to "off" in /etc/ttys. 155 15620140512: 157 Clang and llvm have been upgraded to 3.4.1 release. 158 15920140321: 160 Clang and llvm have been upgraded to 3.4 release. 161 16220140306: 163 If a Makefile in a tests/ directory was auto-generating a Kyuafile 164 instead of providing an explicit one, this would prevent such 165 Makefile from providing its own Kyuafile in the future during 166 NO_CLEAN builds. This has been fixed in the Makefiles but manual 167 intervention is needed to clean an objdir if you use NO_CLEAN: 168 # find /usr/obj -name Kyuafile | xargs rm -f 169 17020140303: 171 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 172 capability mode support. Please note that enabling the feature in 173 kernel is still highly recommended. 174 17520140227: 176 OpenSSH is now built with sandbox support, and will use sandbox as 177 the default privilege separation method. This requires Capsicum 178 capability mode support in kernel. 179 18020140216: 181 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 182 been deprecated and will not be part of FreeBSD 11.0 and later 183 releases. If you use this driver, please consider switching to 184 the nfe(4) driver instead. 185 18620140120: 187 10.0-RELEASE. 188 18920131216: 190 The behavior of gss_pseudo_random() for the krb5 mechanism 191 has changed, for applications requesting a longer random string 192 than produced by the underlying enctype's pseudo-random() function. 193 In particular, the random string produced from a session key of 194 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 195 be different at the 17th octet and later, after this change. 196 The counter used in the PRF+ construction is now encoded as a 197 big-endian integer in accordance with RFC 4402. 198 __FreeBSD_version is bumped to 1000701. 199 20020131108: 201 The WITHOUT_ATF build knob has been removed and its functionality 202 has been subsumed into the more generic WITHOUT_TESTS. If you were 203 using the former to disable the build of the ATF libraries, you 204 should change your settings to use the latter. 205 20620131031: 207 The default version of mtree is nmtree which is obtained from 208 NetBSD. The output is generally the same, but may vary 209 slightly. If you found you need identical output adding 210 "-F freebsd9" to the command line should do the trick. For the 211 time being, the old mtree is available as fmtree. 212 21320131014: 214 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 215 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 216 1.1.4_8 and verify bsdyml not linked in, before running "make 217 delete-old-libs": 218 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 219 or 220 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 221 22220131010: 223 The rc.d/jail script has been updated to support jail(8) 224 configuration file. The "jail_<jname>_*" rc.conf(5) variables 225 for per-jail configuration are automatically converted to 226 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 227 This is transparently backward compatible. See below about some 228 incompatibilities and rc.conf(5) manual page for more details. 229 230 These variables are now deprecated in favor of jail(8) configuration 231 file. One can use "rc.d/jail config <jname>" command to generate 232 a jail(8) configuration file in /var/run/jail.<jname>.conf without 233 running the jail(8) utility. The default pathname of the 234 configuration file is /etc/jail.conf and can be specified by 235 using $jail_conf or $jail_<jname>_conf variables. 236 237 Please note that jail_devfs_ruleset accepts an integer at 238 this moment. Please consider to rewrite the ruleset name 239 with an integer. 240 24120130930: 242 BIND has been removed from the base system. If all you need 243 is a local resolver, simply enable and start the local_unbound 244 service instead. Otherwise, several versions of BIND are 245 available in the ports tree. The dns/bind99 port is one example. 246 247 With this change, nslookup(1) and dig(1) are no longer in the base 248 system. Users should instead use host(1) and drill(1) which are 249 in the base system. Alternatively, nslookup and dig can 250 be obtained by installing the dns/bind-tools port. 251 25220130916: 253 With the addition of unbound(8), a new unbound user is now 254 required during installworld. "mergemaster -p" can be used to 255 add the user prior to installworld, as documented in the handbook. 256 25720130911: 258 OpenSSH is now built with DNSSEC support, and will by default 259 silently trust signed SSHFP records. This can be controlled with 260 the VerifyHostKeyDNS client configuration setting. DNSSEC support 261 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 262 26320130906: 264 The GNU Compiler Collection and C++ standard library (libstdc++) 265 are no longer built by default on platforms where clang is the system 266 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 267 options in src.conf. 268 26920130905: 270 The PROCDESC kernel option is now part of the GENERIC kernel 271 configuration and is required for the rwhod(8) to work. 272 If you are using custom kernel configuration, you should include 273 'options PROCDESC'. 274 27520130905: 276 The API and ABI related to the Capsicum framework was modified 277 in backward incompatible way. The userland libraries and programs 278 have to be recompiled to work with the new kernel. This includes the 279 following libraries and programs, but the whole buildworld is 280 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 281 kdump, procstat, rwho, rwhod, uniq. 282 28320130903: 284 AES-NI intrinsic support has been added to gcc. The AES-NI module 285 has been updated to use this support. A new gcc is required to build 286 the aesni module on both i386 and amd64. 287 28820130821: 289 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 290 Thus "device padlock_rng" and "device rdrand_rng" should be 291 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 292 29320130813: 294 WITH_ICONV has been split into two feature sets. WITH_ICONV now 295 enables just the iconv* functionality and is now on by default. 296 WITH_LIBICONV_COMPAT enables the libiconv api and link time 297 compatability. Set WITHOUT_ICONV to build the old way. 298 If you have been using WITH_ICONV before, you will very likely 299 need to turn on WITH_LIBICONV_COMPAT. 300 30120130806: 302 INVARIANTS option now enables DEBUG for code with OpenSolaris and 303 Illumos origin, including ZFS. If you have INVARIANTS in your 304 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 305 explicitly. 306 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 307 locks if WITNESS option was set. Because that generated a lot of 308 witness(9) reports and all of them were believed to be false 309 positives, this is no longer done. New option OPENSOLARIS_WITNESS 310 can be used to achieve the previous behavior. 311 31220130806: 313 Timer values in IPv6 data structures now use time_uptime instead 314 of time_second. Although this is not a user-visible functional 315 change, userland utilities which directly use them---ndp(8), 316 rtadvd(8), and rtsold(8) in the base system---need to be updated 317 to r253970 or later. 318 31920130802: 320 find -delete can now delete the pathnames given as arguments, 321 instead of only files found below them or if the pathname did 322 not contain any slashes. Formerly, the following error message 323 would result: 324 325 find: -delete: <path>: relative path potentially not safe 326 327 Deleting the pathnames given as arguments can be prevented 328 without error messages using -mindepth 1 or by changing 329 directory and passing "." as argument to find. This works in the 330 old as well as the new version of find. 331 33220130726: 333 Behavior of devfs rules path matching has been changed. 334 Pattern is now always matched against fully qualified devfs 335 path and slash characters must be explicitly matched by 336 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 337 subdirectories must be reviewed. 338 33920130716: 340 The default ARM ABI has changed to the ARM EABI. The old ABI is 341 incompatible with the ARM EABI and all programs and modules will 342 need to be rebuilt to work with a new kernel. 343 344 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 345 346 NOTE: Support for the old ABI will be removed in the future and 347 users are advised to upgrade. 348 34920130709: 350 pkg_install has been disconnected from the build if you really need it 351 you should add WITH_PKGTOOLS in your src.conf(5). 352 35320130709: 354 Most of network statistics structures were changed to be able 355 keep 64-bits counters. Thus all tools, that work with networking 356 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 357 35820130629: 359 Fix targets that run multiple make's to use && rather than ; 360 so that subsequent steps depend on success of previous. 361 362 NOTE: if building 'universe' with -j* on stable/8 or stable/9 363 it would be better to start the build using bmake, to avoid 364 overloading the machine. 365 36620130618: 367 Fix a bug that allowed a tracing process (e.g. gdb) to write 368 to a memory-mapped file in the traced process's address space 369 even if neither the traced process nor the tracing process had 370 write access to that file. 371 37220130615: 373 CVS has been removed from the base system. An exact copy 374 of the code is available from the devel/cvs port. 375 37620130613: 377 Some people report the following error after the switch to bmake: 378 379 make: illegal option -- J 380 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 381 ... 382 *** [buildworld] Error code 2 383 384 this likely due to an old instance of make in 385 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 386 which src/Makefile will use that blindly, if it exists, so if 387 you see the above error: 388 389 rm -rf `make -V MAKEPATH` 390 391 should resolve it. 392 39320130516: 394 Use bmake by default. 395 Whereas before one could choose to build with bmake via 396 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 397 make. The goal is to remove these knobs for 10-RELEASE. 398 399 It is worth noting that bmake (like gmake) treats the command 400 line as the unit of failure, rather than statements within the 401 command line. Thus '(cd some/where && dosomething)' is safer 402 than 'cd some/where; dosomething'. The '()' allows consistent 403 behavior in parallel build. 404 40520130429: 406 Fix a bug that allows NFS clients to issue READDIR on files. 407 40820130426: 409 The WITHOUT_IDEA option has been removed because 410 the IDEA patent expired. 411 41220130426: 413 The sysctl which controls TRIM support under ZFS has been renamed 414 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 415 enabled by default. 416 41720130425: 418 The mergemaster command now uses the default MAKEOBJDIRPREFIX 419 rather than creating it's own in the temporary directory in 420 order allow access to bootstrapped versions of tools such as 421 install and mtree. When upgrading from version of FreeBSD where 422 the install command does not support -l, you will need to 423 install a new mergemaster command if mergemaster -p is required. 424 This can be accomplished with the command (cd src/usr.sbin/mergemaster 425 && make install). 426 42720130404: 428 Legacy ATA stack, disabled and replaced by new CAM-based one since 429 FreeBSD 9.0, completely removed from the sources. Kernel modules 430 atadisk and atapi*, user-level tools atacontrol and burncd are 431 removed. Kernel option `options ATA_CAM` is now permanently enabled 432 and removed. 433 43420130319: 435 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 436 and socketpair(2). Software, in particular Kerberos, may 437 automatically detect and use these during building. The resulting 438 binaries will not work on older kernels. 439 44020130308: 441 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 442 information, see the respective 20130304 entry). 443 44420130304: 445 Recent commits to callout(9) changed the size of struct callout, 446 so the KBI is probably heavily disturbed. Also, some functions 447 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 448 by macros. Every kernel module using it won't load, so rebuild 449 is requested. 450 451 The ctl device has been re-enabled in GENERIC for i386 and amd64, 452 but does not initialize by default (because of the new CTL_DISABLE 453 option) to save memory. To re-enable it, remove the CTL_DISABLE 454 option from the kernel config file or set kern.cam.ctl.disable=0 455 in /boot/loader.conf. 456 45720130301: 458 The ctl device has been disabled in GENERIC for i386 and amd64. 459 This was done due to the extra memory being allocated at system 460 initialisation time by the ctl driver which was only used if 461 a CAM target device was created. This makes a FreeBSD system 462 unusable on 128MB or less of RAM. 463 46420130208: 465 A new compression method (lz4) has been merged to -HEAD. Please 466 refer to zpool-features(7) for more information. 467 468 Please refer to the "ZFS notes" section of this file for information 469 on upgrading boot ZFS pools. 470 47120130129: 472 A BSD-licensed patch(1) variant has been added and is installed 473 as bsdpatch, being the GNU version the default patch. 474 To inverse the logic and use the BSD-licensed one as default, 475 while having the GNU version installed as gnupatch, rebuild 476 and install world with the WITH_BSD_PATCH knob set. 477 47820130121: 479 Due to the use of the new -l option to install(1) during build 480 and install, you must take care not to directly set the INSTALL 481 make variable in your /etc/make.conf, /etc/src.conf, or on the 482 command line. If you wish to use the -C flag for all installs 483 you may be able to add INSTALL+=-C to /etc/make.conf or 484 /etc/src.conf. 485 48620130118: 487 The install(1) option -M has changed meaning and now takes an 488 argument that is a file or path to append logs to. In the 489 unlikely event that -M was the last option on the command line 490 and the command line contained at least two files and a target 491 directory the first file will have logs appended to it. The -M 492 option served little practical purpose in the last decade so its 493 use is expected to be extremely rare. 494 49520121223: 496 After switching to Clang as the default compiler some users of ZFS 497 on i386 systems started to experience stack overflow kernel panics. 498 Please consider using 'options KSTACK_PAGES=4' in such configurations. 499 50020121222: 501 GEOM_LABEL now mangles label names read from file system metadata. 502 Mangling affect labels containing spaces, non-printable characters, 503 '%' or '"'. Device names in /etc/fstab and other places may need to 504 be updated. 505 50620121217: 507 By default, only the 10 most recent kernel dumps will be saved. To 508 restore the previous behaviour (no limit on the number of kernel dumps 509 stored in the dump directory) add the following line to /etc/rc.conf: 510 511 savecore_flags="" 512 51320121201: 514 With the addition of auditdistd(8), a new auditdistd user is now 515 required during installworld. "mergemaster -p" can be used to 516 add the user prior to installworld, as documented in the handbook. 517 51820121117: 519 The sin6_scope_id member variable in struct sockaddr_in6 is now 520 filled by the kernel before passing the structure to the userland via 521 sysctl or routing socket. This means the KAME-specific embedded scope 522 id in sin6_addr.s6_addr[2] is always cleared in userland application. 523 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 524 __FreeBSD_version is bumped to 1000025. 525 52620121105: 527 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 528 This means that the world and kernel will be compiled with clang 529 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 530 and /usr/bin/cpp. To disable this behavior and revert to building 531 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 532 of current may need to bootstrap WITHOUT_CLANG first if the clang 533 build fails (its compatibility window doesn't extend to the 9 stable 534 branch point). 535 53620121102: 537 The IPFIREWALL_FORWARD kernel option has been removed. Its 538 functionality now turned on by default. 539 54020121023: 541 The ZERO_COPY_SOCKET kernel option has been removed and 542 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 543 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 544 mechanism which is not safe and may result in kernel crashes. 545 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 546 driver supports disposeable external page sized mbuf storage. 547 Proper replacements for both zero-copy mechanisms are under 548 consideration and will eventually lead to complete removal 549 of the two kernel options. 550 55120121023: 552 The IPv4 network stack has been converted to network byte 553 order. The following modules need to be recompiled together 554 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 555 pf(4), ipfw(4), ng_ipfw(4), stf(4). 556 55720121022: 558 Support for non-MPSAFE filesystems was removed from VFS. The 559 VFS_VERSION was bumped, all filesystem modules shall be 560 recompiled. 561 56220121018: 563 All the non-MPSAFE filesystems have been disconnected from 564 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 565 portalfs, smbfs, xfs. 566 56720121016: 568 The interface cloning API and ABI has changed. The following 569 modules need to be recompiled together with kernel: 570 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 571 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 572 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 573 57420121015: 575 The sdhci driver was split in two parts: sdhci (generic SD Host 576 Controller logic) and sdhci_pci (actual hardware driver). 577 No kernel config modifications are required, but if you 578 load sdhc as a module you must switch to sdhci_pci instead. 579 58020121014: 581 Import the FUSE kernel and userland support into base system. 582 58320121013: 584 The GNU sort(1) program has been removed since the BSD-licensed 585 sort(1) has been the default for quite some time and no serious 586 problems have been reported. The corresponding WITH_GNU_SORT 587 knob has also gone. 588 58920121006: 590 The pfil(9) API/ABI for AF_INET family has been changed. Packet 591 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 592 with new kernel. 593 59420121001: 595 The net80211(4) ABI has been changed to allow for improved driver 596 PS-POLL and power-save support. All wireless drivers need to be 597 recompiled to work with the new kernel. 598 59920120913: 600 The random(4) support for the VIA hardware random number 601 generator (`PADLOCK') is no longer enabled unconditionally. 602 Add the padlock_rng device in the custom kernel config if 603 needed. The GENERIC kernels on i386 and amd64 do include the 604 device, so the change only affects the custom kernel 605 configurations. 606 60720120908: 608 The pf(4) packet filter ABI has been changed. pfctl(8) and 609 snmp_pf module need to be recompiled to work with new kernel. 610 61120120828: 612 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 613 to -HEAD. Pools that have empty_bpobj in active state can not be 614 imported read-write with ZFS implementations that do not support 615 this feature. For more information read the zpool-features(5) 616 manual page. 617 61820120727: 619 The sparc64 ZFS loader has been changed to no longer try to auto- 620 detect ZFS providers based on diskN aliases but now requires these 621 to be explicitly listed in the OFW boot-device environment variable. 622 62320120712: 624 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 625 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 626 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 627 62820120712: 629 The following sysctls and tunables have been renamed for consistency 630 with other variables: 631 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 632 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 633 63420120628: 635 The sort utility has been replaced with BSD sort. For now, GNU sort 636 is also available as "gnusort" or the default can be set back to 637 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 638 installed as "bsdsort". 639 64020120611: 641 A new version of ZFS (pool version 5000) has been merged to -HEAD. 642 Starting with this version the old system of ZFS pool versioning 643 is superseded by "feature flags". This concept enables forward 644 compatibility against certain future changes in functionality of ZFS 645 pools. The first read-only compatible "feature flag" for ZFS pools 646 is named "com.delphix:async_destroy". For more information 647 read the new zpool-features(5) manual page. 648 Please refer to the "ZFS notes" section of this file for information 649 on upgrading boot ZFS pools. 650 65120120417: 652 The malloc(3) implementation embedded in libc now uses sources imported 653 as contrib/jemalloc. The most disruptive API change is to 654 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 655 delete it prior to installworld, and optionally re-create it using the 656 new format after rebooting. See malloc.conf(5) for details 657 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 658 NAMESPACE section). 659 66020120328: 661 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 662 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 663 now spelled mips. This is to aid compatibility with third-party 664 software that expects this naming scheme in uname(3). Little-endian 665 settings are unchanged. If you are updating a big-endian mips64 machine 666 from before this change, you may need to set MACHINE_ARCH=mips64 in 667 your environment before the new build system will recognize your machine. 668 66920120306: 670 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 671 platforms. 672 67320120229: 674 Now unix domain sockets behave "as expected" on nullfs(5). Previously 675 nullfs(5) did not pass through all behaviours to the underlying layer, 676 as a result if we bound to a socket on the lower layer we could connect 677 only to the lower path; if we bound to the upper layer we could connect 678 only to the upper path. The new behavior is one can connect to both the 679 lower and the upper paths regardless what layer path one binds to. 680 68120120211: 682 The getifaddrs upgrade path broken with 20111215 has been restored. 683 If you have upgraded in between 20111215 and 20120209 you need to 684 recompile libc again with your kernel. You still need to recompile 685 world to be able to configure CARP but this restriction already 686 comes from 20111215. 687 68820120114: 689 The set_rcvar() function has been removed from /etc/rc.subr. All 690 base and ports rc.d scripts have been updated, so if you have a 691 port installed with a script in /usr/local/etc/rc.d you can either 692 hand-edit the rcvar= line, or reinstall the port. 693 694 An easy way to handle the mass-update of /etc/rc.d: 695 rm /etc/rc.d/* && mergemaster -i 696 69720120109: 698 panic(9) now stops other CPUs in the SMP systems, disables interrupts 699 on the current CPU and prevents other threads from running. 700 This behavior can be reverted using the kern.stop_scheduler_on_panic 701 tunable/sysctl. 702 The new behavior can be incompatible with kern.sync_on_panic. 703 70420111215: 705 The carp(4) facility has been changed significantly. Configuration 706 of the CARP protocol via ifconfig(8) has changed, as well as format 707 of CARP events submitted to devd(8) has changed. See manual pages 708 for more information. The arpbalance feature of carp(4) is currently 709 not supported anymore. 710 711 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 712 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 713 need to be recompiled. 714 71520111122: 716 The acpi_wmi(4) status device /dev/wmistat has been renamed to 717 /dev/wmistat0. 718 71920111108: 720 The option VFS_ALLOW_NONMPSAFE option has been added in order to 721 explicitely support non-MPSAFE filesystems. 722 It is on by default for all supported platform at this present 723 time. 724 72520111101: 726 The broken amd(4) driver has been replaced with esp(4) in the amd64, 727 i386 and pc98 GENERIC kernel configuration files. 728 72920110930: 730 sysinstall has been removed 731 73220110923: 733 The stable/9 branch created in subversion. This corresponds to the 734 RELENG_9 branch in CVS. 735 73620110913: 737 This commit modifies vfs_register() so that it uses a hash 738 calculation to set vfc_typenum, which is enabled by default. 739 The first time a system is booted after this change, the 740 vfc_typenum values will change for all file systems. The 741 main effect of this is a change to the NFS server file handles 742 for file systems that use vfc_typenum in their fsid, such as ZFS. 743 It will, however, prevent vfc_typenum from changing when file 744 systems are loaded in a different order for subsequent reboots. 745 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 746 until you are ready to remount all NFS clients after a reboot. 747 74820110828: 749 Bump the shared library version numbers for libraries that 750 do not use symbol versioning, have changed the ABI compared 751 to stable/8 and which shared library version was not bumped. 752 Done as part of 9.0-RELEASE cycle. 753 75420110815: 755 During the merge of Capsicum features, the fget(9) KPI was modified. 756 This may require the rebuilding of out-of-tree device drivers -- 757 issues have been reported specifically with the nVidia device driver. 758 __FreeBSD_version is bumped to 900041. 759 760 Also, there is a period between 20110811 and 20110814 where the 761 special devices /dev/{stdin,stdout,stderr} did not work correctly. 762 Building world from a kernel during that window may not work. 763 76420110628: 765 The packet filter (pf) code has been updated to OpenBSD 4.5. 766 You need to update userland tools to be in sync with kernel. 767 This update breaks backward compatibility with earlier pfsync(4) 768 versions. Care must be taken when updating redundant firewall setups. 769 77020110608: 771 The following sysctls and tunables are retired on x86 platforms: 772 machdep.hlt_cpus 773 machdep.hlt_logical_cpus 774 The following sysctl is retired: 775 machdep.hyperthreading_allowed 776 The sysctls were supposed to provide a way to dynamically offline and 777 online selected CPUs on x86 platforms, but the implementation has not 778 been reliable especially with SCHED_ULE scheduler. 779 machdep.hyperthreading_allowed tunable is still available to ignore 780 hyperthreading CPUs at OS level. 781 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 782 where X is an APIC ID of a CPU. Be advised, though, that disabling 783 CPUs in non-uniform fashion will result in non-uniform topology and 784 may lead to sub-optimal system performance with SCHED_ULE, which is 785 a default scheduler. 786 78720110607: 788 cpumask_t type is retired and cpuset_t is used in order to describe 789 a mask of CPUs. 790 79120110531: 792 Changes to ifconfig(8) for dynamic address family detection mandate 793 that you are running a kernel of 20110525 or later. Make sure to 794 follow the update procedure to boot a new kernel before installing 795 world. 796 79720110513: 798 Support for sun4v architecture is officially dropped 799 80020110503: 801 Several KPI breaking changes have been committed to the mii(4) layer, 802 the PHY drivers and consequently some Ethernet drivers using mii(4). 803 This means that miibus.ko and the modules of the affected Ethernet 804 drivers need to be recompiled. 805 806 Note to kernel developers: Given that the OUI bit reversion problem 807 was fixed as part of these changes all mii(4) commits related to OUIs, 808 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 809 handling, no longer can be merged verbatim to stable/8 and previous 810 branches. 811 81220110430: 813 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 814 into their kernel configurations along with 'device pci'. 815 81620110427: 817 The default NFS client is now the new NFS client, so fstype "newnfs" 818 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 819 Although mounts via fstype "nfs" will usually work without userland 820 changes, it is recommended that the mount(8) and mount_nfs(8) 821 commands be rebuilt from sources and that a link to mount_nfs called 822 mount_oldnfs be created. The new client is compiled into the 823 kernel with "options NFSCL" and this is needed for diskless root 824 file systems. The GENERIC kernel configs have been changed to use 825 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 826 To use the regular/old client, you can "mount -t oldnfs ...". For 827 a diskless root file system, you must also include a line like: 828 829 vfs.root.mountfrom="oldnfs:" 830 831 in the boot/loader.conf on the root fs on the NFS server to make 832 a diskless root fs use the old client. 833 83420110424: 835 The GENERIC kernels for all architectures now default to the new 836 CAM-based ATA stack. It means that all legacy ATA drivers were 837 removed and replaced by respective CAM drivers. If you are using 838 ATA device names in /etc/fstab or other places, make sure to update 839 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 840 where 'Y's are the sequential numbers starting from zero for each type 841 in order of detection, unless configured otherwise with tunables, 842 see cam(4)). There will be symbolic links created in /dev/ to map 843 old adX devices to the respective adaY. They should provide basic 844 compatibility for file systems mounting in most cases, but they do 845 not support old user-level APIs and do not have respective providers 846 in GEOM. Consider using updated management tools with new device names. 847 848 It is possible to load devices ahci, ata, siis and mvs as modules, 849 but option ATA_CAM should remain in kernel configuration to make ata 850 module work as CAM driver supporting legacy ATA controllers. Device ata 851 still can be used in modular fashion (atacore + ...). Modules atadisk 852 and atapi* are not used and won't affect operation in ATA_CAM mode. 853 Note that to use CAM-based ATA kernel should include CAM devices 854 scbus, pass, da (or explicitly ada), cd and optionally others. All of 855 them are parts of the cam module. 856 857 ataraid(4) functionality is now supported by the RAID GEOM class. 858 To use it you can load geom_raid kernel module and use graid(8) tool 859 for management. Instead of /dev/arX device names, use /dev/raid/rX. 860 861 No kernel config options or code have been removed, so if a problem 862 arises, please report it and optionally revert to the old ATA stack. 863 In order to do it you can remove from the kernel config: 864 options ATA_CAM 865 device ahci 866 device mvs 867 device siis 868 , and instead add back: 869 device atadisk # ATA disk drives 870 device ataraid # ATA RAID drives 871 device atapicd # ATAPI CDROM drives 872 device atapifd # ATAPI floppy drives 873 device atapist # ATAPI tape drives 874 87520110423: 876 The default NFS server has been changed to the new server, which 877 was referred to as the experimental server. If you need to switch 878 back to the old NFS server, you must now put the "-o" option on 879 both the mountd and nfsd commands. This can be done using the 880 mountd_flags and nfs_server_flags rc.conf variables until an 881 update to the rc scripts is committed, which is coming soon. 882 88320110418: 884 The GNU Objective-C runtime library (libobjc), and other Objective-C 885 related components have been removed from the base system. If you 886 require an Objective-C library, please use one of the available ports. 887 88820110331: 889 ath(4) has been split into bus- and device- modules. if_ath contains 890 the HAL, the TX rate control and the network device code. if_ath_pci 891 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 892 contains the AHB glue. Users need to load both if_ath_pci and if_ath 893 in order to use ath on everything else. 894 895 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 896 need to load if_ath and if_ath_pci for ath(4) operation. 897 89820110314: 899 As part of the replacement of sysinstall, the process of building 900 release media has changed significantly. For details, please re-read 901 release(7), which has been updated to reflect the new build process. 902 90320110218: 904 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 905 is the last available version under GPLv2. It brings a number of new 906 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 907 4.1 and SSE 4.2), better support for powerpc64, a number of new 908 directives, and lots of other small improvements. See the ChangeLog 909 file in contrib/binutils for the full details. 910 91120110218: 912 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 913 compliant, and will now use half of hash for authentication. 914 This will break interoperability with all stacks (including all 915 actual FreeBSD versions) who implement 916 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 917 authentication). 918 The only workaround with such peers is to use another HMAC 919 algorithm for IPsec ("phase 2") authentication. 920 92120110207: 922 Remove the uio_yield prototype and symbol. This function has 923 been misnamed since it was introduced and should not be 924 globally exposed with this name. The equivalent functionality 925 is now available using kern_yield(curthread->td_user_pri). 926 The function remains undocumented. 927 92820110112: 929 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 930 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 931 for scalar sysctls is defined but disabled. Code that needs 932 UQUAD to pass the type checking that must compile on older 933 systems where the define is not present can check against 934 __FreeBSD_version >= 900030. 935 936 The system dialog(1) has been replaced with a new version previously 937 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 938 with the previous version, but the libdialog associated with it has 939 a largely incompatible API. As such, the original version of libdialog 940 will be kept temporarily as libodialog, until its base system consumers 941 are replaced or updated. Bump __FreeBSD_version to 900030. 942 94320110103: 944 If you are trying to run make universe on a -stable system, and you get 945 the following warning: 946 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 947 unknown. config(8) likely too old." 948 or something similar to it, then you must upgrade your -stable system 949 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 950 stable/8) or build the config from the latest stable/8 branch and 951 install it on your system. 952 953 Prior to this date, building a current universe on 8-stable system from 954 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 955 error in the first kernel build phase. A new config on those old 956 systems will fix that problem for older versions of -current. 957 95820101228: 959 The TCP stack has been modified to allow Khelp modules to interact with 960 it via helper hook points and store per-connection data in the TCP 961 control block. Bump __FreeBSD_version to 900029. User space tools that 962 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 963 be recompiled. 964 96520101114: 966 Generic IEEE 802.3 annex 31B full duplex flow control support has been 967 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 968 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 969 to take advantage of it instead of using custom implementations. This 970 means that these drivers now no longer unconditionally advertise 971 support for flow control but only do so if flow control is a selected 972 media option. This was implemented in the generic support that way in 973 order to allow flow control to be switched on and off via ifconfig(8) 974 with the PHY specific default to typically off in order to protect 975 from unwanted effects. Consequently, if you used flow control with 976 one of the above mentioned drivers you now need to explicitly enable 977 it, for example via: 978 ifconfig bge0 media auto mediaopt flowcontrol 979 980 Along with the above mentioned changes generic support for setting 981 1000baseT master mode also has been added and brgphy(4), ciphy(4), 982 e1000phy(4) as well as ip1000phy(4) have been converted to take 983 advantage of it. This means that these drivers now no longer take the 984 link0 parameter for selecting master mode but the master media option 985 has to be used instead, for example like in the following: 986 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 987 988 Selection of master mode now is also available with all other PHY 989 drivers supporting 1000baseT. 990 99120101111: 992 The TCP stack has received a significant update to add support for 993 modularised congestion control and generally improve the clarity of 994 congestion control decisions. Bump __FreeBSD_version to 900025. User 995 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 996 sockstat) need to be recompiled. 997 99820101002: 999 The man(1) utility has been replaced by a new version that no longer 1000 uses /etc/manpath.config. Please consult man.conf(5) for how to 1001 migrate local entries to the new format. 1002 100320100928: 1004 The copyright strings printed by login(1) and sshd(8) at the time of a 1005 new connection have been removed to follow other operating systems and 1006 upstream sshd. 1007 100820100915: 1009 A workaround for a fixed ld bug has been removed in kernel code, 1010 so make sure that your system ld is built from sources after 1011 revision 210245 from 2010-07-19 (r211583 if building head kernel 1012 on stable/8, r211584 for stable/7; both from 2010-08-21). 1013 A symptom of incorrect ld version is different addresses for 1014 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1015 101620100913: 1017 The $ipv6_prefer variable in rc.conf(5) has been split into 1018 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1019 1020 The $ip6addrctl_policy is a variable to choose a pre-defined 1021 address selection policy set by ip6addrctl(8). A value 1022 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1023 default is "AUTO". 1024 1025 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1026 flag (see an entry of 20090926) is set on an interface with no 1027 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1028 security reason. If you want IPv6 link-local address on all 1029 interfaces by default, set this to "YES". 1030 1031 The old ipv6_prefer="YES" is equivalent to 1032 ipv6_activate_all_interfaces="YES" and 1033 ip6addrctl_policy="ipv6_prefer". 1034 103520100913: 1036 DTrace has grown support for userland tracing. Due to this, DTrace is 1037 now i386 and amd64 only. 1038 dtruss(1) is now installed by default on those systems and a new 1039 kernel module is needed for userland tracing: fasttrap. 1040 No changes to your kernel config file are necessary to enable 1041 userland tracing, but you might consider adding 'STRIP=' and 1042 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1043 to have informative userland stack traces in DTrace (ustack). 1044 104520100725: 1046 The acpi_aiboost(4) driver has been removed in favor of the new 1047 aibs(4) driver. You should update your kernel configuration file. 1048 104920100722: 1050 BSD grep has been imported to the base system and it is built by 1051 default. It is completely BSD licensed, highly GNU-compatible, uses 1052 less memory than its GNU counterpart and has a small codebase. 1053 However, it is slower than its GNU counterpart, which is mostly 1054 noticeable for larger searches, for smaller ones it is measurable 1055 but not significant. The reason is complex, the most important factor 1056 is that we lack a modern and efficient regex library and GNU 1057 overcomes this by optimizing the searches internally. Future work 1058 on improving the regex performance is planned, for the meantime, 1059 users that need better performance, can build GNU grep instead by 1060 setting the WITH_GNU_GREP knob. 1061 106220100713: 1063 Due to the import of powerpc64 support, all existing powerpc kernel 1064 configuration files must be updated with a machine directive like this: 1065 machine powerpc powerpc 1066 1067 In addition, an updated config(8) is required to build powerpc kernels 1068 after this change. 1069 107020100713: 1071 A new version of ZFS (version 15) has been merged to -HEAD. 1072 This version uses a python library for the following subcommands: 1073 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1074 For full functionality of these commands the following port must 1075 be installed: sysutils/py-zfs 1076 107720100429: 1078 'vm_page's are now hashed by physical address to an array of mutexes. 1079 Currently this is only used to serialize access to hold_count. Over 1080 time the page queue mutex will be peeled away. This changes the size 1081 of pmap on every architecture. And requires all callers of vm_page_hold 1082 and vm_page_unhold to be updated. 1083 108420100402: 1085 WITH_CTF can now be specified in src.conf (not recommended, there 1086 are some problems with static executables), make.conf (would also 1087 affect ports which do not use GNU make and do not override the 1088 compile targets) or in the kernel config (via "makeoptions 1089 WITH_CTF=yes"). 1090 When WITH_CTF was specified there before this was silently ignored, 1091 so make sure that WITH_CTF is not used in places which could lead 1092 to unwanted behavior. 1093 109420100311: 1095 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1096 to allow 32-bit compatibility on non-x86 platforms. All kernel 1097 configurations on amd64 and ia64 platforms using these options must 1098 be modified accordingly. 1099 110020100113: 1101 The utmp user accounting database has been replaced with utmpx, 1102 the user accounting interface standardized by POSIX. 1103 Unfortunately the semantics of utmp and utmpx don't match, 1104 making it practically impossible to support both interfaces. 1105 The user accounting database is used by tools like finger(1), 1106 last(1), talk(1), w(1) and ac(8). 1107 1108 All applications in the base system use utmpx. This means only 1109 local binaries (e.g. from the ports tree) may still use these 1110 utmp database files. These applications must be rebuilt to make 1111 use of utmpx. 1112 1113 After the system has been upgraded, it is safe to remove the old 1114 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1115 assuming their contents is of no importance anymore. Old wtmp 1116 databases can only be used by last(1) and ac(8) after they have 1117 been converted to the new format using wtmpcvt(1). 1118 111920100108: 1120 Introduce the kernel thread "deadlock resolver" (which can be enabled 1121 via the DEADLKRES option, see NOTES for more details) and the 1122 sleepq_type() function for sleepqueues. 1123 112420091202: 1125 The rc.firewall and rc.firewall6 were unified, and 1126 rc.firewall6 and rc.d/ip6fw were removed. 1127 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1128 variables are obsoleted. Instead, the following new rc 1129 variables are added to rc.d/ipfw: 1130 1131 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1132 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1133 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1134 1135 The meanings correspond to the relevant IPv4 variables. 1136 113720091125: 1138 8.0-RELEASE. 1139 114020091113: 1141 The default terminal emulation for syscons(4) has been changed 1142 from cons25 to xterm on all platforms except pc98. This means 1143 that the /etc/ttys file needs to be updated to ensure correct 1144 operation of applications on the console. 1145 1146 The terminal emulation style can be toggled per window by using 1147 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1148 options can be used to change the compile-time default back to 1149 cons25. 1150 1151 To prevent graphical artifacts, make sure the TERM environment 1152 variable is set to match the terminal emulation that is being 1153 performed by syscons(4). 1154 115520091109: 1156 The layout of the structure ieee80211req_scan_result has changed. 1157 Applications that require wireless scan results (e.g. ifconfig(8)) 1158 from net80211 need to be recompiled. 1159 1160 Applications such as wpa_supplicant(8) may require a full world 1161 build without using NO_CLEAN in order to get synchronized with the 1162 new structure. 1163 116420091025: 1165 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1166 There's one kernel module for each firmware. Adding "device iwnfw" 1167 to the kernel configuration file means including all three firmware 1168 images inside the kernel. If you want to include just the one for 1169 your wireless card, use the devices iwn4965fw, iwn5000fw or 1170 iwn5150fw. 1171 117220090926: 1173 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1174 into rc.d/netif. The changes are the following: 1175 1176 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1177 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1178 Note that both variables need the "inet6" keyword at the head. 1179 1180 Do not set $ipv6_network_interfaces manually if you do not 1181 understand what you are doing. It is not needed in most cases. 1182 1183 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1184 they are obsolete. 1185 1186 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1187 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1188 1189 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1190 all configured interfaces have "inet6 accept_rtadv" in the 1191 $ifconfig_IF_ipv6. These are for backward compatibility. 1192 1193 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1194 functionality of interfaces with no corresponding 1195 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1196 and the default address selection policy of ip6addrctl(8) 1197 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1198 Note that if you want to configure IPv6 functionality on the 1199 disabled interfaces after boot, first you need to clear the flag by 1200 using ifconfig(8) like: 1201 1202 ifconfig em0 inet6 -ifdisabled 1203 1204 If YES, the default address selection policy is set as 1205 IPv6-preferred. 1206 1207 The default value of $ipv6_prefer is NO. 1208 1209 4. If your system need to receive Router Advertisement messages, 1210 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1211 scripts automatically invoke rtsol(8) when the interface becomes 1212 UP. The Router Advertisement messages are used for SLAAC 1213 (State-Less Address AutoConfiguration). 1214 121520090922: 1216 802.11s D3.03 support was committed. This is incompatible with the 1217 previous code, which was based on D3.0. 1218 121920090912: 1220 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1221 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1222 control whether accepting Router Advertisement messages or not. 1223 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1224 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1225 The ifconfig(8) utility now supports these flags. 1226 122720090910: 1228 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1229 mount(8) and -a option for df(1) to see them. 1230 123120090825: 1232 The old tunable hw.bus.devctl_disable has been superseded by 1233 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1234 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1235 is 1000. 1236 123720090813: 1238 Remove the option STOP_NMI. The default action is now to use NMI only 1239 for KDB via the newly introduced function stop_cpus_hard() and 1240 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1241 124220090803: 1243 The stable/8 branch created in subversion. This corresponds to the 1244 RELENG_8 branch in CVS. 1245 124620090719: 1247 Bump the shared library version numbers for all libraries that do not 1248 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1249 __FreeBSD_version to 800105. 1250 125120090714: 1252 Due to changes in the implementation of virtual network stack support, 1253 all network-related kernel modules must be recompiled. As this change 1254 breaks the ABI, bump __FreeBSD_version to 800104. 1255 125620090713: 1257 The TOE interface to the TCP syncache has been modified to remove 1258 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1259 The cxgb driver is the only TOE consumer affected by this change, and 1260 needs to be recompiled along with the kernel. As this change breaks 1261 the ABI, bump __FreeBSD_version to 800103. 1262 126320090712: 1264 Padding has been added to struct tcpcb, sackhint and tcpstat in 1265 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1266 maintaining the ABI. However, this change breaks the ABI, so bump 1267 __FreeBSD_version to 800102. User space tools that rely on the size of 1268 any of these structs (e.g. sockstat) need to be recompiled. 1269 127020090630: 1271 The NFS_LEGACYRPC option has been removed along with the old kernel 1272 RPC implementation that this option selected. Kernel configurations 1273 may need to be adjusted. 1274 127520090629: 1276 The network interface device nodes at /dev/net/<interface> have been 1277 removed. All ioctl operations can be performed the normal way using 1278 routing sockets. The kqueue functionality can generally be replaced 1279 with routing sockets. 1280 128120090628: 1282 The documentation from the FreeBSD Documentation Project (Handbook, 1283 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1284 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1285 128620090624: 1287 The ABI of various structures related to the SYSV IPC API have been 1288 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1289 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1290 800100. 1291 129220090622: 1293 Layout of struct vnet has changed as routing related variables were 1294 moved to their own Vimage module. Modules need to be recompiled. Bump 1295 __FreeBSD_version to 800099. 1296 129720090619: 1298 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1299 respectively. As long as no more than 16 groups per process are used, 1300 no changes should be visible. When more than 16 groups are used, old 1301 binaries may fail if they call getgroups() or getgrouplist() with 1302 statically sized storage. Recompiling will work around this, but 1303 applications should be modified to use dynamically allocated storage 1304 for group arrays as POSIX.1-2008 does not cap an implementation's 1305 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1306 1307 NFS and portalfs mounts may also be affected as the list of groups is 1308 truncated to 16. Users of NFS who use more than 16 groups, should 1309 take care that negative group permissions are not used on the exported 1310 file systems as they will not be reliable unless a GSSAPI based 1311 authentication method is used. 1312 131320090616: 1314 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1315 option compiles in the support for adaptive spinning for lockmgrs 1316 which want to enable it. The lockinit() function now accepts the flag 1317 LK_ADAPTIVE in order to make the lock object subject to adaptive 1318 spinning when both held in write and read mode. 1319 132020090613: 1321 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1322 changed. User applications that use this ioctl need to be rebuilt. 1323 132420090611: 1325 The layout of struct thread has changed. Kernel and modules need to 1326 be rebuilt. 1327 132820090608: 1329 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1330 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1331 133220090602: 1333 window(1) has been removed from the base system. It can now be 1334 installed from ports. The port is called misc/window. 1335 133620090601: 1337 The way we are storing and accessing `routing table' entries has 1338 changed. Programs reading the FIB, like netstat, need to be 1339 re-compiled. 1340 134120090601: 1342 A new netisr implementation has been added for FreeBSD 8. Network 1343 file system modules, such as igmp, ipdivert, and others, should be 1344 rebuilt. 1345 Bump __FreeBSD_version to 800096. 1346 134720090530: 1348 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1349 more valid. 1350 135120090530: 1352 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1353 Bump __FreeBSD_version to 800094. 1354 135520090529: 1356 Add mnt_xflag field to 'struct mount'. File system modules need to be 1357 rebuilt. 1358 Bump __FreeBSD_version to 800093. 1359 136020090528: 1361 The compiling option ADAPTIVE_SX has been retired while it has been 1362 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1363 The KPI for sx_init_flags() changes as accepting flags: 1364 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1365 been introduced in order to handle the reversed logic. 1366 Bump __FreeBSD_version to 800092. 1367 136820090527: 1369 Add support for hierarchical jails. Remove global securelevel. 1370 Bump __FreeBSD_version to 800091. 1371 137220090523: 1373 The layout of struct vnet_net has changed, therefore modules 1374 need to be rebuilt. 1375 Bump __FreeBSD_version to 800090. 1376 137720090523: 1378 The newly imported zic(8) produces a new format in the output. Please 1379 run tzsetup(8) to install the newly created data to /etc/localtime. 1380 138120090520: 1382 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1383 hw.usb.* and is now consistent again with previous releases. 1384 138520090520: 1386 802.11 monitor mode support was revised and driver api's were changed. 1387 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1388 of DLT_IEEE802_11. No user-visible data structures were changed but 1389 applications that use DLT_IEEE802_11 may require changes. 1390 Bump __FreeBSD_version to 800088. 1391 139220090430: 1393 The layout of the following structs has changed: sysctl_oid, 1394 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1395 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1396 panics may be experienced. World rebuild is required for 1397 correctly checking networking state from userland. 1398 Bump __FreeBSD_version to 800085. 1399 140020090429: 1401 MLDv2 and Source-Specific Multicast (SSM) have been merged 1402 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1403 The implementation of SSM within FreeBSD's IPv6 stack closely 1404 follows the IPv4 implementation. 1405 1406 For kernel developers: 1407 1408 * The most important changes are that the ip6_output() and 1409 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1410 and this lock has been downgraded to a non-recursive mutex. 1411 1412 * As with the changes to the IPv4 stack to support SSM, filtering 1413 of inbound multicast traffic must now be performed by transport 1414 protocols within the IPv6 stack. This does not apply to TCP and 1415 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1416 1417 * The KPIs used by IPv6 multicast are similar to those used by 1418 the IPv4 stack, with the following differences: 1419 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1420 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1421 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1422 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1423 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1424 for MLDv1 have an additional 'timer' argument which is used to 1425 jitter the initial membership report for the solicited-node 1426 multicast membership on-link. 1427 * This is not strictly needed for MLDv2, which already jitters 1428 its report transmissions. However, the 'timer' argument is 1429 preserved in case MLDv1 is active on the interface. 1430 1431 * The KAME linked-list based IPv6 membership implementation has 1432 been refactored to use a vector similar to that used by the IPv4 1433 stack. 1434 Code which maintains a list of its own multicast memberships 1435 internally, e.g. carp, has been updated to reflect the new 1436 semantics. 1437 1438 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1439 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1440 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1441 implementation constraint which needs to be addressed in HEAD. 1442 1443 For application developers: 1444 1445 * The changes are broadly similar to those made for the IPv4 1446 stack. 1447 1448 * The use of IPv4 and IPv6 multicast socket options on the same 1449 socket, using mapped addresses, HAS NOT been tested or supported. 1450 1451 * There are a number of issues with the implementation of various 1452 IPv6 multicast APIs which need to be resolved in the API surface 1453 before the implementation is fully compatible with KAME userland 1454 use, and these are mostly to do with interface index treatment. 1455 1456 * The literature available discusses the use of either the delta / ASM 1457 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1458 using setsourcefilter(3)/getsourcefilter(3). For more information 1459 please refer to RFC 3768, 'Socket Interface Extensions for 1460 Multicast Source Filters'. 1461 1462 * Applications which use the published RFC 3678 APIs should be fine. 1463 1464 For systems administrators: 1465 1466 * The mtest(8) utility has been refactored to support IPv6, in 1467 addition to IPv4. Interface addresses are no longer accepted 1468 as arguments, their names must be used instead. The utility 1469 will map the interface name to its first IPv4 address as 1470 returned by getifaddrs(3). 1471 1472 * The ifmcstat(8) utility has also been updated to print the MLDv2 1473 endpoint state and source filter lists via sysctl(3). 1474 1475 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1476 loopback of IPv6 multicast datagrams by default; it defaults to 1 1477 to preserve the existing behaviour. Disabling multicast loopback is 1478 recommended for optimal system performance. 1479 1480 * The IPv6 MROUTING code has been changed to examine this sysctl 1481 instead of attempting to perform a group lookup before looping 1482 back forwarded datagrams. 1483 1484 Bump __FreeBSD_version to 800084. 1485 148620090422: 1487 Implement low-level Bluetooth HCI API. 1488 Bump __FreeBSD_version to 800083. 1489 149020090419: 1491 The layout of struct malloc_type, used by modules to register new 1492 memory allocation types, has changed. Most modules will need to 1493 be rebuilt or panics may be experienced. 1494 Bump __FreeBSD_version to 800081. 1495 149620090415: 1497 Anticipate overflowing inp_flags - add inp_flags2. 1498 This changes most offsets in inpcb, so checking v4 connection 1499 state will require a world rebuild. 1500 Bump __FreeBSD_version to 800080. 1501 150220090415: 1503 Add an llentry to struct route and struct route_in6. Modules 1504 embedding a struct route will need to be recompiled. 1505 Bump __FreeBSD_version to 800079. 1506 150720090414: 1508 The size of rt_metrics_lite and by extension rtentry has changed. 1509 Networking administration apps will need to be recompiled. 1510 The route command now supports show as an alias for get, weighting 1511 of routes, sticky and nostick flags to alter the behavior of stateful 1512 load balancing. 1513 Bump __FreeBSD_version to 800078. 1514 151520090408: 1516 Do not use Giant for kbdmux(4) locking. This is wrong and 1517 apparently causing more problems than it solves. This will 1518 re-open the issue where interrupt handlers may race with 1519 kbdmux(4) in polling mode. Typical symptoms include (but 1520 not limited to) duplicated and/or missing characters when 1521 low level console functions (such as gets) are used while 1522 interrupts are enabled (for example geli password prompt, 1523 mountroot prompt etc.). Disabling kbdmux(4) may help. 1524 152520090407: 1526 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1527 kernel modules referencing any of the above need to be recompiled. 1528 Bump __FreeBSD_version to 800075. 1529 153020090320: 1531 GEOM_PART has become the default partition slicer for storage devices, 1532 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1533 introduces some changes: 1534 1535 MSDOS/EBR: the devices created from MSDOS extended partition entries 1536 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1537 to devices with offset-based names. fstabs may need to be modified. 1538 1539 BSD: the "geometry does not match label" warning is harmless in most 1540 cases but it points to problems in file system misalignment with 1541 disk geometry. The "c" partition is now implicit, covers the whole 1542 top-level drive and cannot be (mis)used by users. 1543 1544 General: Kernel dumps are now not allowed to be written to devices 1545 whose partition types indicate they are meant to be used for file 1546 systems (or, in case of MSDOS partitions, as something else than 1547 the "386BSD" type). 1548 1549 Most of these changes date approximately from 200812. 1550 155120090319: 1552 The uscanner(4) driver has been removed from the kernel. This follows 1553 Linux removing theirs in 2.6 and making libusb the default interface 1554 (supported by sane). 1555 155620090319: 1557 The multicast forwarding code has been cleaned up. netstat(1) 1558 only relies on KVM now for printing bandwidth upcall meters. 1559 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1560 ip6_mroute_mod respectively. The config(5) options for statically 1561 compiling this code remain the same, i.e. 'options MROUTING'. 1562 156320090315: 1564 Support for the IFF_NEEDSGIANT network interface flag has been 1565 removed, which means that non-MPSAFE network device drivers are no 1566 longer supported. In particular, if_ar, if_sr, and network device 1567 drivers from the old (legacy) USB stack can no longer be built or 1568 used. 1569 157020090313: 1571 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1572 a bunch of new language catalog files have also been added. 1573 This means that some common libc messages are now localized and 1574 they depend on the LC_MESSAGES environmental variable. 1575 157620090313: 1577 The k8temp(4) driver has been renamed to amdtemp(4) since 1578 support for Family 10 and Family 11 CPU families was added. 1579 158020090309: 1581 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1582 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1583 1584 For kernel developers, the most important changes are that the 1585 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1586 and this lock has been downgraded to a non-recursive mutex. 1587 1588 Transport protocols (UDP, Raw IP) are now responsible for filtering 1589 inbound multicast traffic according to group membership and source 1590 filters. The imo_multicast_filter() KPI exists for this purpose. 1591 Transports which do not use multicast (SCTP, TCP) already reject 1592 multicast by default. Forwarding and receive performance may improve 1593 as a mutex acquisition is no longer needed in the ip_input() 1594 low-level input path. in_addmulti() and in_delmulti() are shimmed 1595 to new KPIs which exist to support SSM in-kernel. 1596 1597 For application developers, it is recommended that loopback of 1598 multicast datagrams be disabled for best performance, as this 1599 will still cause the lock to be taken for each looped-back 1600 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1601 be tuned to 0 to disable loopback by default; it defaults to 1 1602 to preserve the existing behaviour. 1603 1604 For systems administrators, to obtain best performance with 1605 multicast reception and multiple groups, it is always recommended 1606 that a card with a suitably precise hash filter is used. Hash 1607 collisions will still result in the lock being taken within the 1608 transport protocol input path to check group membership. 1609 1610 If deploying FreeBSD in an environment with IGMP snooping switches, 1611 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1612 enabled; this forces 224.0.0.0/24 group membership to be announced 1613 via IGMP. 1614 1615 The size of 'struct igmpstat' has changed; netstat needs to be 1616 recompiled to reflect this. 1617 Bump __FreeBSD_version to 800070. 1618 161920090309: 1620 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1621 updated to use it. This requires a buildworld/installworld in order to 1622 update the library and dependencies (usbconfig, etc). Its advisable to 1623 rebuild all ports which uses libusb. More specific directions are given 1624 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1625 libusb are no longer required and can be removed. 1626 162720090302: 1628 A workaround is committed to allow the creation of System V shared 1629 memory segment of size > 2 GB on the 64-bit architectures. 1630 Due to a limitation of the existing ABI, the shm_segsz member 1631 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1632 wrong for large segments. Note that limits must be explicitly 1633 raised to allow such segments to be created. 1634 163520090301: 1636 The layout of struct ifnet has changed, requiring a rebuild of all 1637 network device driver modules. 1638 163920090227: 1640 The /dev handling for the new USB stack has changed, a 1641 buildworld/installworld is required for libusb20. 1642 164320090223: 1644 The new USB2 stack has now been permanently moved in and all kernel and 1645 module names reverted to their previous values (eg, usb, ehci, ohci, 1646 ums, ...). The old usb stack can be compiled in by prefixing the name 1647 with the letter 'o', the old usb modules have been removed. 1648 Updating entry 20090216 for xorg and 20090215 for libmap may still 1649 apply. 1650 165120090217: 1652 The rc.conf(5) option if_up_delay has been renamed to 1653 defaultroute_delay to better reflect its purpose. If you have 1654 customized this setting in /etc/rc.conf you need to update it to 1655 use the new name. 1656 165720090216: 1658 xorg 7.4 wants to configure its input devices via hald which does not 1659 yet work with USB2. If the keyboard/mouse does not work in xorg then 1660 add 1661 Option "AllowEmptyInput" "off" 1662 to your ServerLayout section. This will cause X to use the configured 1663 kbd and mouse sections from your xorg.conf. 1664 166520090215: 1666 The GENERIC kernels for all architectures now default to the new USB2 1667 stack. No kernel config options or code have been removed so if a 1668 problem arises please report it and optionally revert to the old USB 1669 stack. If you are loading USB kernel modules or have a custom kernel 1670 that includes GENERIC then ensure that usb names are also changed over, 1671 eg uftdi -> usb2_serial_ftdi. 1672 1673 Older programs linked against the ports libusb 0.1 need to be 1674 redirected to the new stack's libusb20. /etc/libmap.conf can 1675 be used for this: 1676 # Map old usb library to new one for usb2 stack 1677 libusb-0.1.so.8 libusb20.so.1 1678 167920090209: 1680 All USB ethernet devices now attach as interfaces under the name ueN 1681 (eg. ue0). This is to provide a predictable name as vendors often 1682 change usb chipsets in a product without notice. 1683 168420090203: 1685 The ichsmb(4) driver has been changed to require SMBus slave 1686 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1687 All of the other SMBus controller drivers require left-justified 1688 slave addresses, so this change makes all the drivers provide the 1689 same interface. 1690 169120090201: 1692 INET6 statistics (struct ip6stat) was updated. 1693 netstat(1) needs to be recompiled. 1694 169520090119: 1696 NTFS has been removed from GENERIC kernel on amd64 to match 1697 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1698 will load ntfs.ko module automatically when NTFS support is 1699 actually needed, unless ntfs.ko is not installed or security 1700 level prohibits loading kernel modules. If either is the case, 1701 "options NTFS" has to be added into kernel config. 1702 170320090115: 1704 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1705 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1706 800061. User space tools that rely on the size of struct tcpcb in 1707 tcp_var.h (e.g. sockstat) need to be recompiled. 1708 170920081225: 1710 ng_tty(4) module updated to match the new TTY subsystem. 1711 Due to API change, user-level applications must be updated. 1712 New API support added to mpd5 CVS and expected to be present 1713 in next mpd5.3 release. 1714 171520081219: 1716 With __FreeBSD_version 800060 the makefs tool is part of 1717 the base system (it was a port). 1718 171920081216: 1720 The afdata and ifnet locks have been changed from mutexes to 1721 rwlocks, network modules will need to be re-compiled. 1722 172320081214: 1724 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1725 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1726 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1727 architecture and 40 bytes on 64-bit architecture. The userland 1728 applications "arp" and "ndp" have been updated accordingly. 1729 The output from "netstat -r" shows only routing entries and 1730 none of the L2 information. 1731 173220081130: 1733 __FreeBSD_version 800057 marks the switchover from the 1734 binary ath hal to source code. Users must add the line: 1735 1736 options AH_SUPPORT_AR5416 1737 1738 to their kernel config files when specifying: 1739 1740 device ath_hal 1741 1742 The ath_hal module no longer exists; the code is now compiled 1743 together with the driver in the ath module. It is now 1744 possible to tailor chip support (i.e. reduce the set of chips 1745 and thereby the code size); consult ath_hal(4) for details. 1746 174720081121: 1748 __FreeBSD_version 800054 adds memory barriers to 1749 <machine/atomic.h>, new interfaces to ifnet to facilitate 1750 multiple hardware transmit queues for cards that support 1751 them, and a lock-less ring-buffer implementation to 1752 enable drivers to more efficiently manage queueing of 1753 packets. 1754 175520081117: 1756 A new version of ZFS (version 13) has been merged to -HEAD. 1757 This version has zpool attribute "listsnapshots" off by 1758 default, which means "zfs list" does not show snapshots, 1759 and is the same as Solaris behavior. 1760 176120081028: 1762 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1763 176420081009: 1765 The uhci, ohci, ehci and slhci USB Host controller drivers have 1766 been put into separate modules. If you load the usb module 1767 separately through loader.conf you will need to load the 1768 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1769 controller add the following to loader.conf: 1770 1771 uhci_load="YES" 1772 ehci_load="YES" 1773 177420081009: 1775 The ABI used by the PMC toolset has changed. Please keep 1776 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1777 sync. 1778 177920081009: 1780 atapci kernel module now includes only generic PCI ATA 1781 driver. AHCI driver moved to ataahci kernel module. 1782 All vendor-specific code moved into separate kernel modules: 1783 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1784 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1785 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1786 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1787 178820080820: 1789 The TTY subsystem of the kernel has been replaced by a new 1790 implementation, which provides better scalability and an 1791 improved driver model. Most common drivers have been migrated to 1792 the new TTY subsystem, while others have not. The following 1793 drivers have not yet been ported to the new TTY layer: 1794 1795 PCI/ISA: 1796 cy, digi, rc, rp, sio 1797 1798 USB: 1799 ubser, ucycom 1800 1801 Line disciplines: 1802 ng_h4, ng_tty, ppp, sl, snp 1803 1804 Adding these drivers to your kernel configuration file shall 1805 cause compilation to fail. 1806 180720080818: 1808 ntpd has been upgraded to 4.2.4p5. 1809 181020080801: 1811 OpenSSH has been upgraded to 5.1p1. 1812 1813 For many years, FreeBSD's version of OpenSSH preferred DSA 1814 over RSA for host and user authentication keys. With this 1815 upgrade, we've switched to the vendor's default of RSA over 1816 DSA. This may cause upgraded clients to warn about unknown 1817 host keys even for previously known hosts. Users should 1818 follow the usual procedure for verifying host keys before 1819 accepting the RSA key. 1820 1821 This can be circumvented by setting the "HostKeyAlgorithms" 1822 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1823 command line. 1824 1825 Please note that the sequence of keys offered for 1826 authentication has been changed as well. You may want to 1827 specify IdentityFile in a different order to revert this 1828 behavior. 1829 183020080713: 1831 The sio(4) driver has been removed from the i386 and amd64 1832 kernel configuration files. This means uart(4) is now the 1833 default serial port driver on those platforms as well. 1834 1835 To prevent collisions with the sio(4) driver, the uart(4) driver 1836 uses different names for its device nodes. This means the 1837 onboard serial port will now most likely be called "ttyu0" 1838 instead of "ttyd0". You may need to reconfigure applications to 1839 use the new device names. 1840 1841 When using the serial port as a boot console, be sure to update 1842 /boot/device.hints and /etc/ttys before booting the new kernel. 1843 If you forget to do so, you can still manually specify the hints 1844 at the loader prompt: 1845 1846 set hint.uart.0.at="isa" 1847 set hint.uart.0.port="0x3F8" 1848 set hint.uart.0.flags="0x10" 1849 set hint.uart.0.irq="4" 1850 boot -s 1851 185220080609: 1853 The gpt(8) utility has been removed. Use gpart(8) to partition 1854 disks instead. 1855 185620080603: 1857 The version that Linuxulator emulates was changed from 2.4.2 1858 to 2.6.16. If you experience any problems with Linux binaries 1859 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1860 if it fixes the problem contact emulation mailing list. 1861 186220080525: 1863 ISDN4BSD (I4B) was removed from the src tree. You may need to 1864 update a your kernel configuration and remove relevant entries. 1865 186620080509: 1867 I have checked in code to support multiple routing tables. 1868 See the man pages setfib(1) and setfib(2). 1869 This is a hopefully backwards compatible version, 1870 but to make use of it you need to compile your kernel 1871 with options ROUTETABLES=2 (or more up to 16). 1872 187320080420: 1874 The 802.11 wireless support was redone to enable multi-bss 1875 operation on devices that are capable. The underlying device 1876 is no longer used directly but instead wlanX devices are 1877 cloned with ifconfig. This requires changes to rc.conf files. 1878 For example, change: 1879 ifconfig_ath0="WPA DHCP" 1880 to 1881 wlans_ath0=wlan0 1882 ifconfig_wlan0="WPA DHCP" 1883 see rc.conf(5) for more details. In addition, mergemaster of 1884 /etc/rc.d is highly recommended. Simultaneous update of userland 1885 and kernel wouldn't hurt either. 1886 1887 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1888 modules were merged into the base wlan module. All references 1889 to these modules (e.g. in kernel config files) must be removed. 1890 189120080408: 1892 psm(4) has gained write(2) support in native operation level. 1893 Arbitrary commands can be written to /dev/psm%d and status can 1894 be read back from it. Therefore, an application is responsible 1895 for status validation and error recovery. It is a no-op in 1896 other operation levels. 1897 189820080312: 1899 Support for KSE threading has been removed from the kernel. To 1900 run legacy applications linked against KSE libmap.conf may 1901 be used. The following libmap.conf may be used to ensure 1902 compatibility with any prior release: 1903 1904 libpthread.so.1 libthr.so.1 1905 libpthread.so.2 libthr.so.2 1906 libkse.so.3 libthr.so.3 1907 190820080301: 1909 The layout of struct vmspace has changed. This affects libkvm 1910 and any executables that link against libkvm and use the 1911 kvm_getprocs() function. In particular, but not exclusively, 1912 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1913 The effects are minimal, but it's advisable to upgrade world 1914 nonetheless. 1915 191620080229: 1917 The latest em driver no longer has support in it for the 1918 82575 adapter, this is now moved to the igb driver. The 1919 split was done to make new features that are incompatible 1920 with older hardware easier to do. 1921 192220080220: 1923 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1924 likewise the kernel option is now GEOM_LINUX_LVM. 1925 192620080211: 1927 The default NFS mount mode has changed from UDP to TCP for 1928 increased reliability. If you rely on (insecurely) NFS 1929 mounting across a firewall you may need to update your 1930 firewall rules. 1931 193220080208: 1933 Belatedly note the addition of m_collapse for compacting 1934 mbuf chains. 1935 193620080126: 1937 The fts(3) structures have been changed to use adequate 1938 integer types for their members and so to be able to cope 1939 with huge file trees. The old fts(3) ABI is preserved 1940 through symbol versioning in libc, so third-party binaries 1941 using fts(3) should still work, although they will not take 1942 advantage of the extended types. At the same time, some 1943 third-party software might fail to build after this change 1944 due to unportable assumptions made in its source code about 1945 fts(3) structure members. Such software should be fixed 1946 by its vendor or, in the worst case, in the ports tree. 1947 FreeBSD_version 800015 marks this change for the unlikely 1948 case that a portable fix is impossible. 1949 195020080123: 1951 To upgrade to -current after this date, you must be running 1952 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1953 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1954 195520071128: 1956 The ADAPTIVE_GIANT kernel option has been retired because its 1957 functionality is the default now. 1958 195920071118: 1960 The AT keyboard emulation of sunkbd(4) has been turned on 1961 by default. In order to make the special symbols of the Sun 1962 keyboards driven by sunkbd(4) work under X these now have 1963 to be configured the same way as Sun USB keyboards driven 1964 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1965 1966 Option "XkbLayout" "us" 1967 Option "XkbRules" "xorg" 1968 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1969 197020071024: 1971 It has been decided that it is desirable to provide ABI 1972 backwards compatibility to the FreeBSD 4/5/6 versions of the 1973 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1974 broken with the introduction of PCI domain support (see the 1975 20070930 entry). Unfortunately, this required the ABI of 1976 PCIOCGETCONF to be broken again in order to be able to 1977 provide backwards compatibility to the old version of that 1978 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1979 again. As for prominent ports this affects neither pciutils 1980 nor xorg-server this time, the hal port needs to be rebuilt 1981 however. 1982 198320071020: 1984 The misnamed kthread_create() and friends have been renamed 1985 to kproc_create() etc. Many of the callers already 1986 used kproc_start().. 1987 I will return kthread_create() and friends in a while 1988 with implementations that actually create threads, not procs. 1989 Renaming corresponds with version 800002. 1990 199120071010: 1992 RELENG_7 branched. 1993 1994COMMON ITEMS: 1995 1996 General Notes 1997 ------------- 1998 Avoid using make -j when upgrading. While generally safe, there are 1999 sometimes problems using -j to upgrade. If your upgrade fails with 2000 -j, please try again without -j. From time to time in the past there 2001 have been problems using -j with buildworld and/or installworld. This 2002 is especially true when upgrading between "distant" versions (eg one 2003 that cross a major release boundary or several minor releases, or when 2004 several months have passed on the -current branch). 2005 2006 Sometimes, obscure build problems are the result of environment 2007 poisoning. This can happen because the make utility reads its 2008 environment when searching for values for global variables. To run 2009 your build attempts in an "environmental clean room", prefix all make 2010 commands with 'env -i '. See the env(1) manual page for more details. 2011 2012 When upgrading from one major version to another it is generally best 2013 to upgrade to the latest code in the currently installed branch first, 2014 then do an upgrade to the new branch. This is the best-tested upgrade 2015 path, and has the highest probability of being successful. Please try 2016 this approach before reporting problems with a major version upgrade. 2017 2018 When upgrading a live system, having a root shell around before 2019 installing anything can help undo problems. Not having a root shell 2020 around can lead to problems if pam has changed too much from your 2021 starting point to allow continued authentication after the upgrade. 2022 2023 ZFS notes 2024 --------- 2025 When upgrading the boot ZFS pool to a new version, always follow 2026 these two steps: 2027 2028 1.) recompile and reinstall the ZFS boot loader and boot block 2029 (this is part of "make buildworld" and "make installworld") 2030 2031 2.) update the ZFS boot block on your boot drive 2032 2033 The following example updates the ZFS boot block on the first 2034 partition (freebsd-boot) of a GPT partitioned drive ad0: 2035 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2036 2037 Non-boot pools do not need these updates. 2038 2039 To build a kernel 2040 ----------------- 2041 If you are updating from a prior version of FreeBSD (even one just 2042 a few days old), you should follow this procedure. It is the most 2043 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2044 2045 make kernel-toolchain 2046 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2047 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2048 2049 To test a kernel once 2050 --------------------- 2051 If you just want to boot a kernel once (because you are not sure 2052 if it works, or if you want to boot a known bad kernel to provide 2053 debugging information) run 2054 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2055 nextboot -k testkernel 2056 2057 To just build a kernel when you know that it won't mess you up 2058 -------------------------------------------------------------- 2059 This assumes you are already running a CURRENT system. Replace 2060 ${arch} with the architecture of your machine (e.g. "i386", 2061 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2062 2063 cd src/sys/${arch}/conf 2064 config KERNEL_NAME_HERE 2065 cd ../compile/KERNEL_NAME_HERE 2066 make depend 2067 make 2068 make install 2069 2070 If this fails, go to the "To build a kernel" section. 2071 2072 To rebuild everything and install it on the current system. 2073 ----------------------------------------------------------- 2074 # Note: sometimes if you are running current you gotta do more than 2075 # is listed here if you are upgrading from a really old current. 2076 2077 <make sure you have good level 0 dumps> 2078 make buildworld 2079 make kernel KERNCONF=YOUR_KERNEL_HERE 2080 [1] 2081 <reboot in single user> [3] 2082 mergemaster -p [5] 2083 make installworld 2084 mergemaster -i [4] 2085 make delete-old [6] 2086 <reboot> 2087 2088 To cross-install current onto a separate partition 2089 -------------------------------------------------- 2090 # In this approach we use a separate partition to hold 2091 # current's root, 'usr', and 'var' directories. A partition 2092 # holding "/", "/usr" and "/var" should be about 2GB in 2093 # size. 2094 2095 <make sure you have good level 0 dumps> 2096 <boot into -stable> 2097 make buildworld 2098 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2099 <maybe newfs current's root partition> 2100 <mount current's root partition on directory ${CURRENT_ROOT}> 2101 make installworld DESTDIR=${CURRENT_ROOT} 2102 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2103 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2104 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2105 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2106 <reboot into current> 2107 <do a "native" rebuild/install as described in the previous section> 2108 <maybe install compatibility libraries from ports/misc/compat*> 2109 <reboot> 2110 2111 2112 To upgrade in-place from stable to current 2113 ---------------------------------------------- 2114 <make sure you have good level 0 dumps> 2115 make buildworld [9] 2116 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2117 [1] 2118 <reboot in single user> [3] 2119 mergemaster -p [5] 2120 make installworld 2121 mergemaster -i [4] 2122 make delete-old [6] 2123 <reboot> 2124 2125 Make sure that you've read the UPDATING file to understand the 2126 tweaks to various things you need. At this point in the life 2127 cycle of current, things change often and you are on your own 2128 to cope. The defaults can also change, so please read ALL of 2129 the UPDATING entries. 2130 2131 Also, if you are tracking -current, you must be subscribed to 2132 freebsd-current@freebsd.org. Make sure that before you update 2133 your sources that you have read and understood all the recent 2134 messages there. If in doubt, please track -stable which has 2135 much fewer pitfalls. 2136 2137 [1] If you have third party modules, such as vmware, you 2138 should disable them at this point so they don't crash your 2139 system on reboot. 2140 2141 [3] From the bootblocks, boot -s, and then do 2142 fsck -p 2143 mount -u / 2144 mount -a 2145 cd src 2146 adjkerntz -i # if CMOS is wall time 2147 Also, when doing a major release upgrade, it is required that 2148 you boot into single user mode to do the installworld. 2149 2150 [4] Note: This step is non-optional. Failure to do this step 2151 can result in a significant reduction in the functionality of the 2152 system. Attempting to do it by hand is not recommended and those 2153 that pursue this avenue should read this file carefully, as well 2154 as the archives of freebsd-current and freebsd-hackers mailing lists 2155 for potential gotchas. The -U option is also useful to consider. 2156 See mergemaster(8) for more information. 2157 2158 [5] Usually this step is a noop. However, from time to time 2159 you may need to do this if you get unknown user in the following 2160 step. It never hurts to do it all the time. You may need to 2161 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2162 install) after the buildworld before this step if you last updated 2163 from current before 20130425 or from -stable before 20130430. 2164 2165 [6] This only deletes old files and directories. Old libraries 2166 can be deleted by "make delete-old-libs", but you have to make 2167 sure that no program is using those libraries anymore. 2168 2169 [8] In order to have a kernel that can run the 4.x binaries needed to 2170 do an installworld, you must include the COMPAT_FREEBSD4 option in 2171 your kernel. Failure to do so may leave you with a system that is 2172 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2173 required to run the 5.x binaries on more recent kernels. And so on 2174 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2175 2176 Make sure that you merge any new devices from GENERIC since the 2177 last time you updated your kernel config file. 2178 2179 [9] When checking out sources, you must include the -P flag to have 2180 cvs prune empty directories. 2181 2182 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2183 "?=" instead of the "=" assignment operator, so that buildworld can 2184 override the CPUTYPE if it needs to. 2185 2186 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2187 not on the command line, or in /etc/make.conf. buildworld will 2188 warn if it is improperly defined. 2189FORMAT: 2190 2191This file contains a list, in reverse chronological order, of major 2192breakages in tracking -current. It is not guaranteed to be a complete 2193list of such breakages, and only contains entries since October 10, 2007. 2194If you need to see UPDATING entries from before that date, you will need 2195to fetch an UPDATING file from an older FreeBSD release. 2196 2197Copyright information: 2198 2199Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2200 2201Redistribution, publication, translation and use, with or without 2202modification, in full or in part, in any form or format of this 2203document are permitted without further permission from the author. 2204 2205THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2206IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2207WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2208DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2209INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2210(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2211SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2212HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2213STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2214IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2215POSSIBILITY OF SUCH DAMAGE. 2216 2217Contact Warner Losh if you have any questions about your use of 2218this document. 2219 2220$FreeBSD: stable/10/UPDATING 285206 2015-07-06 13:23:27Z des $ 2221