UPDATING revision 286120
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 1920150731: 20 As ZFS requires more kernel stack pages than is the default on some 21 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 22 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 23 24 Please consider using 'options KSTACK_PAGES=X' where X is greater 25 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 26 2720150703: 28 The default Unbound configuration now enables remote control 29 using a local socket. Users who have already enabled the 30 local_unbound service should regenerate their configuration 31 by running "service local_unbound setup" as root. 32 3320150624: 34 An additional fix for the issue described in the 20150614 sendmail 35 entry below has been been committed in revision 284786. 36 3720150615: 38 The fix for the issue described in the 20150614 sendmail entry 39 below has been been committed in revision 284485. The work 40 around described in that entry is no longer needed unless the 41 default setting is overridden by a confDH_PARAMETERS configuration 42 setting of '5' or pointing to a 512 bit DH parameter file. 43 4420150614: 45 The import of openssl to address the FreeBSD-SA-15:10.openssl 46 security advisory includes a change which rejects handshakes 47 with DH parameters below 768 bits. sendmail releases prior 48 to 8.15.2 (not yet released), defaulted to a 512 bit 49 DH parameter setting for client connections. To work around 50 this interoperability, sendmail can be configured to use a 51 2048 bit DH parameter by: 52 53 1. Edit /etc/mail/`hostname`.mc 54 2. If a setting for confDH_PARAMETERS does not exist or 55 exists and is set to a string beginning with '5', 56 replace it with '2'. 57 3. If a setting for confDH_PARAMETERS exists and is set to 58 a file path, create a new file with: 59 openssl dhparam -out /path/to/file 2048 60 4. Rebuild the .cf file: 61 cd /etc/mail/; make; make install 62 5. Restart sendmail: 63 cd /etc/mail/; make restart 64 65 A sendmail patch is coming, at which time this file will be 66 updated. 67 6820150601: 69 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 70 defined in symlink(7); previously symlinks were silently ignored. 71 7220150430: 73 The const qualifier has been removed from iconv(3) to comply with 74 POSIX. The ports tree is aware of this from r384038 onwards. 75 7620141215: 77 At svn r275807, The default linux compat kernel ABI has been adjusted 78 to 2.6.18 in support of the linux-c6 compat ports infrastructure 79 update. If you wish to continue using the linux-f10 compat ports, 80 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 81 encouraged to update their linux-compat packages to linux-c6 during 82 their next update cycle. 83 84 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 85 8620141205: 87 pjdfstest has been integrated into kyua as an opt-in test suite. 88 Please see share/doc/pjdfstest/README for a more details on how to 89 execute it. 90 9120141118: 92 10.1-RELEASE. 93 9420140904: 95 The ofwfb driver, used to provide a graphics console on PowerPC when 96 using vt(4), no longer allows mmap() of all of physical memory. This 97 will prevent Xorg on PowerPC with some ATI graphics cards from 98 initializing properly unless x11-servers/xorg-server is updated to 99 1.12.4_8 or newer. 100 10120140831: 102 The libatf-c and libatf-c++ major versions were downgraded to 0 and 103 1 respectively to match the upstream numbers. They were out of 104 sync because, when they were originally added to FreeBSD, the 105 upstream versions were not respected. These libraries are private 106 and not yet built by default, so renumbering them should be a 107 non-issue. However, unclean source trees will yield broken test 108 programs once the operator executes "make delete-old-libs" after a 109 "make installworld". 110 111 Additionally, the atf-sh binary was made private by moving it into 112 /usr/libexec/. Already-built shell test programs will keep the 113 path to the old binary so they will break after "make delete-old" 114 is run. 115 116 If you are using WITH_TESTS=yes (not the default), wipe the object 117 tree and rebuild from scratch to prevent spurious test failures. 118 This is only needed once: the misnumbered libraries and misplaced 119 binaries have been added to OptionalObsoleteFiles.inc so they will 120 be removed during a clean upgrade. 121 12220140814: 123 The ixgbe tunables now match their sysctl counterparts, for example: 124 hw.ixgbe.enable_aim => hw.ix.enable_aim 125 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 126 12720140801: 128 The NFSv4.1 server committed by r269398 changes the internal 129 function call interfaces used between the NFS and krpc modules. 130 As such, __FreeBSD_version was bumped. 131 13220140729: 133 The default unbound configuration has been modified to address 134 issues with reverse lookups on networks that use private 135 address ranges. If you use the local_unbound service, run 136 "service local_unbound setup" as root to regenerate your 137 configuration, then "service local_unbound reload" to load the 138 new configuration. 139 14020140717: 141 It is no longer necessary to include the dwarf version in your DEBUG 142 options in your kernel config file. The bug that required it to be 143 placed in the config file has bene fixed. DEBUG should now just 144 contain -g. The build system will automatically update things 145 to do the right thing. 146 14720140715: 148 Several ABI breaking changes were merged to CTL and new iSCSI code. 149 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 150 iscsictl need to be rebuilt to work with a new kernel. 151 15220140708: 153 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 154 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 155 which differs from the behaviour controlled by this knob.) 156 15720140608: 158 On i386 and amd64 systems, the onifconsole flag is now set by default 159 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 160 as a login TTY if it is set in the bootloader as an active kernel 161 console. No changes in behavior should result otherwise. To revert to 162 the previous behavior, set ttyu0 to "off" in /etc/ttys. 163 16420140512: 165 Clang and llvm have been upgraded to 3.4.1 release. 166 16720140321: 168 Clang and llvm have been upgraded to 3.4 release. 169 17020140306: 171 If a Makefile in a tests/ directory was auto-generating a Kyuafile 172 instead of providing an explicit one, this would prevent such 173 Makefile from providing its own Kyuafile in the future during 174 NO_CLEAN builds. This has been fixed in the Makefiles but manual 175 intervention is needed to clean an objdir if you use NO_CLEAN: 176 # find /usr/obj -name Kyuafile | xargs rm -f 177 17820140303: 179 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 180 capability mode support. Please note that enabling the feature in 181 kernel is still highly recommended. 182 18320140227: 184 OpenSSH is now built with sandbox support, and will use sandbox as 185 the default privilege separation method. This requires Capsicum 186 capability mode support in kernel. 187 18820140216: 189 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 190 been deprecated and will not be part of FreeBSD 11.0 and later 191 releases. If you use this driver, please consider switching to 192 the nfe(4) driver instead. 193 19420140120: 195 10.0-RELEASE. 196 19720131216: 198 The behavior of gss_pseudo_random() for the krb5 mechanism 199 has changed, for applications requesting a longer random string 200 than produced by the underlying enctype's pseudo-random() function. 201 In particular, the random string produced from a session key of 202 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 203 be different at the 17th octet and later, after this change. 204 The counter used in the PRF+ construction is now encoded as a 205 big-endian integer in accordance with RFC 4402. 206 __FreeBSD_version is bumped to 1000701. 207 20820131108: 209 The WITHOUT_ATF build knob has been removed and its functionality 210 has been subsumed into the more generic WITHOUT_TESTS. If you were 211 using the former to disable the build of the ATF libraries, you 212 should change your settings to use the latter. 213 21420131031: 215 The default version of mtree is nmtree which is obtained from 216 NetBSD. The output is generally the same, but may vary 217 slightly. If you found you need identical output adding 218 "-F freebsd9" to the command line should do the trick. For the 219 time being, the old mtree is available as fmtree. 220 22120131014: 222 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 223 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 224 1.1.4_8 and verify bsdyml not linked in, before running "make 225 delete-old-libs": 226 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 227 or 228 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 229 23020131010: 231 The rc.d/jail script has been updated to support jail(8) 232 configuration file. The "jail_<jname>_*" rc.conf(5) variables 233 for per-jail configuration are automatically converted to 234 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 235 This is transparently backward compatible. See below about some 236 incompatibilities and rc.conf(5) manual page for more details. 237 238 These variables are now deprecated in favor of jail(8) configuration 239 file. One can use "rc.d/jail config <jname>" command to generate 240 a jail(8) configuration file in /var/run/jail.<jname>.conf without 241 running the jail(8) utility. The default pathname of the 242 configuration file is /etc/jail.conf and can be specified by 243 using $jail_conf or $jail_<jname>_conf variables. 244 245 Please note that jail_devfs_ruleset accepts an integer at 246 this moment. Please consider to rewrite the ruleset name 247 with an integer. 248 24920130930: 250 BIND has been removed from the base system. If all you need 251 is a local resolver, simply enable and start the local_unbound 252 service instead. Otherwise, several versions of BIND are 253 available in the ports tree. The dns/bind99 port is one example. 254 255 With this change, nslookup(1) and dig(1) are no longer in the base 256 system. Users should instead use host(1) and drill(1) which are 257 in the base system. Alternatively, nslookup and dig can 258 be obtained by installing the dns/bind-tools port. 259 26020130916: 261 With the addition of unbound(8), a new unbound user is now 262 required during installworld. "mergemaster -p" can be used to 263 add the user prior to installworld, as documented in the handbook. 264 26520130911: 266 OpenSSH is now built with DNSSEC support, and will by default 267 silently trust signed SSHFP records. This can be controlled with 268 the VerifyHostKeyDNS client configuration setting. DNSSEC support 269 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 270 27120130906: 272 The GNU Compiler Collection and C++ standard library (libstdc++) 273 are no longer built by default on platforms where clang is the system 274 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 275 options in src.conf. 276 27720130905: 278 The PROCDESC kernel option is now part of the GENERIC kernel 279 configuration and is required for the rwhod(8) to work. 280 If you are using custom kernel configuration, you should include 281 'options PROCDESC'. 282 28320130905: 284 The API and ABI related to the Capsicum framework was modified 285 in backward incompatible way. The userland libraries and programs 286 have to be recompiled to work with the new kernel. This includes the 287 following libraries and programs, but the whole buildworld is 288 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 289 kdump, procstat, rwho, rwhod, uniq. 290 29120130903: 292 AES-NI intrinsic support has been added to gcc. The AES-NI module 293 has been updated to use this support. A new gcc is required to build 294 the aesni module on both i386 and amd64. 295 29620130821: 297 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 298 Thus "device padlock_rng" and "device rdrand_rng" should be 299 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 300 30120130813: 302 WITH_ICONV has been split into two feature sets. WITH_ICONV now 303 enables just the iconv* functionality and is now on by default. 304 WITH_LIBICONV_COMPAT enables the libiconv api and link time 305 compatability. Set WITHOUT_ICONV to build the old way. 306 If you have been using WITH_ICONV before, you will very likely 307 need to turn on WITH_LIBICONV_COMPAT. 308 30920130806: 310 INVARIANTS option now enables DEBUG for code with OpenSolaris and 311 Illumos origin, including ZFS. If you have INVARIANTS in your 312 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 313 explicitly. 314 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 315 locks if WITNESS option was set. Because that generated a lot of 316 witness(9) reports and all of them were believed to be false 317 positives, this is no longer done. New option OPENSOLARIS_WITNESS 318 can be used to achieve the previous behavior. 319 32020130806: 321 Timer values in IPv6 data structures now use time_uptime instead 322 of time_second. Although this is not a user-visible functional 323 change, userland utilities which directly use them---ndp(8), 324 rtadvd(8), and rtsold(8) in the base system---need to be updated 325 to r253970 or later. 326 32720130802: 328 find -delete can now delete the pathnames given as arguments, 329 instead of only files found below them or if the pathname did 330 not contain any slashes. Formerly, the following error message 331 would result: 332 333 find: -delete: <path>: relative path potentially not safe 334 335 Deleting the pathnames given as arguments can be prevented 336 without error messages using -mindepth 1 or by changing 337 directory and passing "." as argument to find. This works in the 338 old as well as the new version of find. 339 34020130726: 341 Behavior of devfs rules path matching has been changed. 342 Pattern is now always matched against fully qualified devfs 343 path and slash characters must be explicitly matched by 344 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 345 subdirectories must be reviewed. 346 34720130716: 348 The default ARM ABI has changed to the ARM EABI. The old ABI is 349 incompatible with the ARM EABI and all programs and modules will 350 need to be rebuilt to work with a new kernel. 351 352 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 353 354 NOTE: Support for the old ABI will be removed in the future and 355 users are advised to upgrade. 356 35720130709: 358 pkg_install has been disconnected from the build if you really need it 359 you should add WITH_PKGTOOLS in your src.conf(5). 360 36120130709: 362 Most of network statistics structures were changed to be able 363 keep 64-bits counters. Thus all tools, that work with networking 364 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 365 36620130629: 367 Fix targets that run multiple make's to use && rather than ; 368 so that subsequent steps depend on success of previous. 369 370 NOTE: if building 'universe' with -j* on stable/8 or stable/9 371 it would be better to start the build using bmake, to avoid 372 overloading the machine. 373 37420130618: 375 Fix a bug that allowed a tracing process (e.g. gdb) to write 376 to a memory-mapped file in the traced process's address space 377 even if neither the traced process nor the tracing process had 378 write access to that file. 379 38020130615: 381 CVS has been removed from the base system. An exact copy 382 of the code is available from the devel/cvs port. 383 38420130613: 385 Some people report the following error after the switch to bmake: 386 387 make: illegal option -- J 388 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 389 ... 390 *** [buildworld] Error code 2 391 392 this likely due to an old instance of make in 393 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 394 which src/Makefile will use that blindly, if it exists, so if 395 you see the above error: 396 397 rm -rf `make -V MAKEPATH` 398 399 should resolve it. 400 40120130516: 402 Use bmake by default. 403 Whereas before one could choose to build with bmake via 404 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 405 make. The goal is to remove these knobs for 10-RELEASE. 406 407 It is worth noting that bmake (like gmake) treats the command 408 line as the unit of failure, rather than statements within the 409 command line. Thus '(cd some/where && dosomething)' is safer 410 than 'cd some/where; dosomething'. The '()' allows consistent 411 behavior in parallel build. 412 41320130429: 414 Fix a bug that allows NFS clients to issue READDIR on files. 415 41620130426: 417 The WITHOUT_IDEA option has been removed because 418 the IDEA patent expired. 419 42020130426: 421 The sysctl which controls TRIM support under ZFS has been renamed 422 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 423 enabled by default. 424 42520130425: 426 The mergemaster command now uses the default MAKEOBJDIRPREFIX 427 rather than creating it's own in the temporary directory in 428 order allow access to bootstrapped versions of tools such as 429 install and mtree. When upgrading from version of FreeBSD where 430 the install command does not support -l, you will need to 431 install a new mergemaster command if mergemaster -p is required. 432 This can be accomplished with the command (cd src/usr.sbin/mergemaster 433 && make install). 434 43520130404: 436 Legacy ATA stack, disabled and replaced by new CAM-based one since 437 FreeBSD 9.0, completely removed from the sources. Kernel modules 438 atadisk and atapi*, user-level tools atacontrol and burncd are 439 removed. Kernel option `options ATA_CAM` is now permanently enabled 440 and removed. 441 44220130319: 443 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 444 and socketpair(2). Software, in particular Kerberos, may 445 automatically detect and use these during building. The resulting 446 binaries will not work on older kernels. 447 44820130308: 449 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 450 information, see the respective 20130304 entry). 451 45220130304: 453 Recent commits to callout(9) changed the size of struct callout, 454 so the KBI is probably heavily disturbed. Also, some functions 455 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 456 by macros. Every kernel module using it won't load, so rebuild 457 is requested. 458 459 The ctl device has been re-enabled in GENERIC for i386 and amd64, 460 but does not initialize by default (because of the new CTL_DISABLE 461 option) to save memory. To re-enable it, remove the CTL_DISABLE 462 option from the kernel config file or set kern.cam.ctl.disable=0 463 in /boot/loader.conf. 464 46520130301: 466 The ctl device has been disabled in GENERIC for i386 and amd64. 467 This was done due to the extra memory being allocated at system 468 initialisation time by the ctl driver which was only used if 469 a CAM target device was created. This makes a FreeBSD system 470 unusable on 128MB or less of RAM. 471 47220130208: 473 A new compression method (lz4) has been merged to -HEAD. Please 474 refer to zpool-features(7) for more information. 475 476 Please refer to the "ZFS notes" section of this file for information 477 on upgrading boot ZFS pools. 478 47920130129: 480 A BSD-licensed patch(1) variant has been added and is installed 481 as bsdpatch, being the GNU version the default patch. 482 To inverse the logic and use the BSD-licensed one as default, 483 while having the GNU version installed as gnupatch, rebuild 484 and install world with the WITH_BSD_PATCH knob set. 485 48620130121: 487 Due to the use of the new -l option to install(1) during build 488 and install, you must take care not to directly set the INSTALL 489 make variable in your /etc/make.conf, /etc/src.conf, or on the 490 command line. If you wish to use the -C flag for all installs 491 you may be able to add INSTALL+=-C to /etc/make.conf or 492 /etc/src.conf. 493 49420130118: 495 The install(1) option -M has changed meaning and now takes an 496 argument that is a file or path to append logs to. In the 497 unlikely event that -M was the last option on the command line 498 and the command line contained at least two files and a target 499 directory the first file will have logs appended to it. The -M 500 option served little practical purpose in the last decade so its 501 use is expected to be extremely rare. 502 50320121223: 504 After switching to Clang as the default compiler some users of ZFS 505 on i386 systems started to experience stack overflow kernel panics. 506 Please consider using 'options KSTACK_PAGES=4' in such configurations. 507 50820121222: 509 GEOM_LABEL now mangles label names read from file system metadata. 510 Mangling affect labels containing spaces, non-printable characters, 511 '%' or '"'. Device names in /etc/fstab and other places may need to 512 be updated. 513 51420121217: 515 By default, only the 10 most recent kernel dumps will be saved. To 516 restore the previous behaviour (no limit on the number of kernel dumps 517 stored in the dump directory) add the following line to /etc/rc.conf: 518 519 savecore_flags="" 520 52120121201: 522 With the addition of auditdistd(8), a new auditdistd user is now 523 required during installworld. "mergemaster -p" can be used to 524 add the user prior to installworld, as documented in the handbook. 525 52620121117: 527 The sin6_scope_id member variable in struct sockaddr_in6 is now 528 filled by the kernel before passing the structure to the userland via 529 sysctl or routing socket. This means the KAME-specific embedded scope 530 id in sin6_addr.s6_addr[2] is always cleared in userland application. 531 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 532 __FreeBSD_version is bumped to 1000025. 533 53420121105: 535 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 536 This means that the world and kernel will be compiled with clang 537 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 538 and /usr/bin/cpp. To disable this behavior and revert to building 539 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 540 of current may need to bootstrap WITHOUT_CLANG first if the clang 541 build fails (its compatibility window doesn't extend to the 9 stable 542 branch point). 543 54420121102: 545 The IPFIREWALL_FORWARD kernel option has been removed. Its 546 functionality now turned on by default. 547 54820121023: 549 The ZERO_COPY_SOCKET kernel option has been removed and 550 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 551 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 552 mechanism which is not safe and may result in kernel crashes. 553 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 554 driver supports disposeable external page sized mbuf storage. 555 Proper replacements for both zero-copy mechanisms are under 556 consideration and will eventually lead to complete removal 557 of the two kernel options. 558 55920121023: 560 The IPv4 network stack has been converted to network byte 561 order. The following modules need to be recompiled together 562 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 563 pf(4), ipfw(4), ng_ipfw(4), stf(4). 564 56520121022: 566 Support for non-MPSAFE filesystems was removed from VFS. The 567 VFS_VERSION was bumped, all filesystem modules shall be 568 recompiled. 569 57020121018: 571 All the non-MPSAFE filesystems have been disconnected from 572 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 573 portalfs, smbfs, xfs. 574 57520121016: 576 The interface cloning API and ABI has changed. The following 577 modules need to be recompiled together with kernel: 578 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 579 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 580 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 581 58220121015: 583 The sdhci driver was split in two parts: sdhci (generic SD Host 584 Controller logic) and sdhci_pci (actual hardware driver). 585 No kernel config modifications are required, but if you 586 load sdhc as a module you must switch to sdhci_pci instead. 587 58820121014: 589 Import the FUSE kernel and userland support into base system. 590 59120121013: 592 The GNU sort(1) program has been removed since the BSD-licensed 593 sort(1) has been the default for quite some time and no serious 594 problems have been reported. The corresponding WITH_GNU_SORT 595 knob has also gone. 596 59720121006: 598 The pfil(9) API/ABI for AF_INET family has been changed. Packet 599 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 600 with new kernel. 601 60220121001: 603 The net80211(4) ABI has been changed to allow for improved driver 604 PS-POLL and power-save support. All wireless drivers need to be 605 recompiled to work with the new kernel. 606 60720120913: 608 The random(4) support for the VIA hardware random number 609 generator (`PADLOCK') is no longer enabled unconditionally. 610 Add the padlock_rng device in the custom kernel config if 611 needed. The GENERIC kernels on i386 and amd64 do include the 612 device, so the change only affects the custom kernel 613 configurations. 614 61520120908: 616 The pf(4) packet filter ABI has been changed. pfctl(8) and 617 snmp_pf module need to be recompiled to work with new kernel. 618 61920120828: 620 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 621 to -HEAD. Pools that have empty_bpobj in active state can not be 622 imported read-write with ZFS implementations that do not support 623 this feature. For more information read the zpool-features(5) 624 manual page. 625 62620120727: 627 The sparc64 ZFS loader has been changed to no longer try to auto- 628 detect ZFS providers based on diskN aliases but now requires these 629 to be explicitly listed in the OFW boot-device environment variable. 630 63120120712: 632 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 633 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 634 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 635 63620120712: 637 The following sysctls and tunables have been renamed for consistency 638 with other variables: 639 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 640 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 641 64220120628: 643 The sort utility has been replaced with BSD sort. For now, GNU sort 644 is also available as "gnusort" or the default can be set back to 645 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 646 installed as "bsdsort". 647 64820120611: 649 A new version of ZFS (pool version 5000) has been merged to -HEAD. 650 Starting with this version the old system of ZFS pool versioning 651 is superseded by "feature flags". This concept enables forward 652 compatibility against certain future changes in functionality of ZFS 653 pools. The first read-only compatible "feature flag" for ZFS pools 654 is named "com.delphix:async_destroy". For more information 655 read the new zpool-features(5) manual page. 656 Please refer to the "ZFS notes" section of this file for information 657 on upgrading boot ZFS pools. 658 65920120417: 660 The malloc(3) implementation embedded in libc now uses sources imported 661 as contrib/jemalloc. The most disruptive API change is to 662 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 663 delete it prior to installworld, and optionally re-create it using the 664 new format after rebooting. See malloc.conf(5) for details 665 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 666 NAMESPACE section). 667 66820120328: 669 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 670 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 671 now spelled mips. This is to aid compatibility with third-party 672 software that expects this naming scheme in uname(3). Little-endian 673 settings are unchanged. If you are updating a big-endian mips64 machine 674 from before this change, you may need to set MACHINE_ARCH=mips64 in 675 your environment before the new build system will recognize your machine. 676 67720120306: 678 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 679 platforms. 680 68120120229: 682 Now unix domain sockets behave "as expected" on nullfs(5). Previously 683 nullfs(5) did not pass through all behaviours to the underlying layer, 684 as a result if we bound to a socket on the lower layer we could connect 685 only to the lower path; if we bound to the upper layer we could connect 686 only to the upper path. The new behavior is one can connect to both the 687 lower and the upper paths regardless what layer path one binds to. 688 68920120211: 690 The getifaddrs upgrade path broken with 20111215 has been restored. 691 If you have upgraded in between 20111215 and 20120209 you need to 692 recompile libc again with your kernel. You still need to recompile 693 world to be able to configure CARP but this restriction already 694 comes from 20111215. 695 69620120114: 697 The set_rcvar() function has been removed from /etc/rc.subr. All 698 base and ports rc.d scripts have been updated, so if you have a 699 port installed with a script in /usr/local/etc/rc.d you can either 700 hand-edit the rcvar= line, or reinstall the port. 701 702 An easy way to handle the mass-update of /etc/rc.d: 703 rm /etc/rc.d/* && mergemaster -i 704 70520120109: 706 panic(9) now stops other CPUs in the SMP systems, disables interrupts 707 on the current CPU and prevents other threads from running. 708 This behavior can be reverted using the kern.stop_scheduler_on_panic 709 tunable/sysctl. 710 The new behavior can be incompatible with kern.sync_on_panic. 711 71220111215: 713 The carp(4) facility has been changed significantly. Configuration 714 of the CARP protocol via ifconfig(8) has changed, as well as format 715 of CARP events submitted to devd(8) has changed. See manual pages 716 for more information. The arpbalance feature of carp(4) is currently 717 not supported anymore. 718 719 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 720 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 721 need to be recompiled. 722 72320111122: 724 The acpi_wmi(4) status device /dev/wmistat has been renamed to 725 /dev/wmistat0. 726 72720111108: 728 The option VFS_ALLOW_NONMPSAFE option has been added in order to 729 explicitely support non-MPSAFE filesystems. 730 It is on by default for all supported platform at this present 731 time. 732 73320111101: 734 The broken amd(4) driver has been replaced with esp(4) in the amd64, 735 i386 and pc98 GENERIC kernel configuration files. 736 73720110930: 738 sysinstall has been removed 739 74020110923: 741 The stable/9 branch created in subversion. This corresponds to the 742 RELENG_9 branch in CVS. 743 74420110913: 745 This commit modifies vfs_register() so that it uses a hash 746 calculation to set vfc_typenum, which is enabled by default. 747 The first time a system is booted after this change, the 748 vfc_typenum values will change for all file systems. The 749 main effect of this is a change to the NFS server file handles 750 for file systems that use vfc_typenum in their fsid, such as ZFS. 751 It will, however, prevent vfc_typenum from changing when file 752 systems are loaded in a different order for subsequent reboots. 753 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 754 until you are ready to remount all NFS clients after a reboot. 755 75620110828: 757 Bump the shared library version numbers for libraries that 758 do not use symbol versioning, have changed the ABI compared 759 to stable/8 and which shared library version was not bumped. 760 Done as part of 9.0-RELEASE cycle. 761 76220110815: 763 During the merge of Capsicum features, the fget(9) KPI was modified. 764 This may require the rebuilding of out-of-tree device drivers -- 765 issues have been reported specifically with the nVidia device driver. 766 __FreeBSD_version is bumped to 900041. 767 768 Also, there is a period between 20110811 and 20110814 where the 769 special devices /dev/{stdin,stdout,stderr} did not work correctly. 770 Building world from a kernel during that window may not work. 771 77220110628: 773 The packet filter (pf) code has been updated to OpenBSD 4.5. 774 You need to update userland tools to be in sync with kernel. 775 This update breaks backward compatibility with earlier pfsync(4) 776 versions. Care must be taken when updating redundant firewall setups. 777 77820110608: 779 The following sysctls and tunables are retired on x86 platforms: 780 machdep.hlt_cpus 781 machdep.hlt_logical_cpus 782 The following sysctl is retired: 783 machdep.hyperthreading_allowed 784 The sysctls were supposed to provide a way to dynamically offline and 785 online selected CPUs on x86 platforms, but the implementation has not 786 been reliable especially with SCHED_ULE scheduler. 787 machdep.hyperthreading_allowed tunable is still available to ignore 788 hyperthreading CPUs at OS level. 789 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 790 where X is an APIC ID of a CPU. Be advised, though, that disabling 791 CPUs in non-uniform fashion will result in non-uniform topology and 792 may lead to sub-optimal system performance with SCHED_ULE, which is 793 a default scheduler. 794 79520110607: 796 cpumask_t type is retired and cpuset_t is used in order to describe 797 a mask of CPUs. 798 79920110531: 800 Changes to ifconfig(8) for dynamic address family detection mandate 801 that you are running a kernel of 20110525 or later. Make sure to 802 follow the update procedure to boot a new kernel before installing 803 world. 804 80520110513: 806 Support for sun4v architecture is officially dropped 807 80820110503: 809 Several KPI breaking changes have been committed to the mii(4) layer, 810 the PHY drivers and consequently some Ethernet drivers using mii(4). 811 This means that miibus.ko and the modules of the affected Ethernet 812 drivers need to be recompiled. 813 814 Note to kernel developers: Given that the OUI bit reversion problem 815 was fixed as part of these changes all mii(4) commits related to OUIs, 816 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 817 handling, no longer can be merged verbatim to stable/8 and previous 818 branches. 819 82020110430: 821 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 822 into their kernel configurations along with 'device pci'. 823 82420110427: 825 The default NFS client is now the new NFS client, so fstype "newnfs" 826 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 827 Although mounts via fstype "nfs" will usually work without userland 828 changes, it is recommended that the mount(8) and mount_nfs(8) 829 commands be rebuilt from sources and that a link to mount_nfs called 830 mount_oldnfs be created. The new client is compiled into the 831 kernel with "options NFSCL" and this is needed for diskless root 832 file systems. The GENERIC kernel configs have been changed to use 833 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 834 To use the regular/old client, you can "mount -t oldnfs ...". For 835 a diskless root file system, you must also include a line like: 836 837 vfs.root.mountfrom="oldnfs:" 838 839 in the boot/loader.conf on the root fs on the NFS server to make 840 a diskless root fs use the old client. 841 84220110424: 843 The GENERIC kernels for all architectures now default to the new 844 CAM-based ATA stack. It means that all legacy ATA drivers were 845 removed and replaced by respective CAM drivers. If you are using 846 ATA device names in /etc/fstab or other places, make sure to update 847 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 848 where 'Y's are the sequential numbers starting from zero for each type 849 in order of detection, unless configured otherwise with tunables, 850 see cam(4)). There will be symbolic links created in /dev/ to map 851 old adX devices to the respective adaY. They should provide basic 852 compatibility for file systems mounting in most cases, but they do 853 not support old user-level APIs and do not have respective providers 854 in GEOM. Consider using updated management tools with new device names. 855 856 It is possible to load devices ahci, ata, siis and mvs as modules, 857 but option ATA_CAM should remain in kernel configuration to make ata 858 module work as CAM driver supporting legacy ATA controllers. Device ata 859 still can be used in modular fashion (atacore + ...). Modules atadisk 860 and atapi* are not used and won't affect operation in ATA_CAM mode. 861 Note that to use CAM-based ATA kernel should include CAM devices 862 scbus, pass, da (or explicitly ada), cd and optionally others. All of 863 them are parts of the cam module. 864 865 ataraid(4) functionality is now supported by the RAID GEOM class. 866 To use it you can load geom_raid kernel module and use graid(8) tool 867 for management. Instead of /dev/arX device names, use /dev/raid/rX. 868 869 No kernel config options or code have been removed, so if a problem 870 arises, please report it and optionally revert to the old ATA stack. 871 In order to do it you can remove from the kernel config: 872 options ATA_CAM 873 device ahci 874 device mvs 875 device siis 876 , and instead add back: 877 device atadisk # ATA disk drives 878 device ataraid # ATA RAID drives 879 device atapicd # ATAPI CDROM drives 880 device atapifd # ATAPI floppy drives 881 device atapist # ATAPI tape drives 882 88320110423: 884 The default NFS server has been changed to the new server, which 885 was referred to as the experimental server. If you need to switch 886 back to the old NFS server, you must now put the "-o" option on 887 both the mountd and nfsd commands. This can be done using the 888 mountd_flags and nfs_server_flags rc.conf variables until an 889 update to the rc scripts is committed, which is coming soon. 890 89120110418: 892 The GNU Objective-C runtime library (libobjc), and other Objective-C 893 related components have been removed from the base system. If you 894 require an Objective-C library, please use one of the available ports. 895 89620110331: 897 ath(4) has been split into bus- and device- modules. if_ath contains 898 the HAL, the TX rate control and the network device code. if_ath_pci 899 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 900 contains the AHB glue. Users need to load both if_ath_pci and if_ath 901 in order to use ath on everything else. 902 903 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 904 need to load if_ath and if_ath_pci for ath(4) operation. 905 90620110314: 907 As part of the replacement of sysinstall, the process of building 908 release media has changed significantly. For details, please re-read 909 release(7), which has been updated to reflect the new build process. 910 91120110218: 912 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 913 is the last available version under GPLv2. It brings a number of new 914 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 915 4.1 and SSE 4.2), better support for powerpc64, a number of new 916 directives, and lots of other small improvements. See the ChangeLog 917 file in contrib/binutils for the full details. 918 91920110218: 920 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 921 compliant, and will now use half of hash for authentication. 922 This will break interoperability with all stacks (including all 923 actual FreeBSD versions) who implement 924 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 925 authentication). 926 The only workaround with such peers is to use another HMAC 927 algorithm for IPsec ("phase 2") authentication. 928 92920110207: 930 Remove the uio_yield prototype and symbol. This function has 931 been misnamed since it was introduced and should not be 932 globally exposed with this name. The equivalent functionality 933 is now available using kern_yield(curthread->td_user_pri). 934 The function remains undocumented. 935 93620110112: 937 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 938 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 939 for scalar sysctls is defined but disabled. Code that needs 940 UQUAD to pass the type checking that must compile on older 941 systems where the define is not present can check against 942 __FreeBSD_version >= 900030. 943 944 The system dialog(1) has been replaced with a new version previously 945 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 946 with the previous version, but the libdialog associated with it has 947 a largely incompatible API. As such, the original version of libdialog 948 will be kept temporarily as libodialog, until its base system consumers 949 are replaced or updated. Bump __FreeBSD_version to 900030. 950 95120110103: 952 If you are trying to run make universe on a -stable system, and you get 953 the following warning: 954 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 955 unknown. config(8) likely too old." 956 or something similar to it, then you must upgrade your -stable system 957 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 958 stable/8) or build the config from the latest stable/8 branch and 959 install it on your system. 960 961 Prior to this date, building a current universe on 8-stable system from 962 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 963 error in the first kernel build phase. A new config on those old 964 systems will fix that problem for older versions of -current. 965 96620101228: 967 The TCP stack has been modified to allow Khelp modules to interact with 968 it via helper hook points and store per-connection data in the TCP 969 control block. Bump __FreeBSD_version to 900029. User space tools that 970 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 971 be recompiled. 972 97320101114: 974 Generic IEEE 802.3 annex 31B full duplex flow control support has been 975 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 976 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 977 to take advantage of it instead of using custom implementations. This 978 means that these drivers now no longer unconditionally advertise 979 support for flow control but only do so if flow control is a selected 980 media option. This was implemented in the generic support that way in 981 order to allow flow control to be switched on and off via ifconfig(8) 982 with the PHY specific default to typically off in order to protect 983 from unwanted effects. Consequently, if you used flow control with 984 one of the above mentioned drivers you now need to explicitly enable 985 it, for example via: 986 ifconfig bge0 media auto mediaopt flowcontrol 987 988 Along with the above mentioned changes generic support for setting 989 1000baseT master mode also has been added and brgphy(4), ciphy(4), 990 e1000phy(4) as well as ip1000phy(4) have been converted to take 991 advantage of it. This means that these drivers now no longer take the 992 link0 parameter for selecting master mode but the master media option 993 has to be used instead, for example like in the following: 994 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 995 996 Selection of master mode now is also available with all other PHY 997 drivers supporting 1000baseT. 998 99920101111: 1000 The TCP stack has received a significant update to add support for 1001 modularised congestion control and generally improve the clarity of 1002 congestion control decisions. Bump __FreeBSD_version to 900025. User 1003 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1004 sockstat) need to be recompiled. 1005 100620101002: 1007 The man(1) utility has been replaced by a new version that no longer 1008 uses /etc/manpath.config. Please consult man.conf(5) for how to 1009 migrate local entries to the new format. 1010 101120100928: 1012 The copyright strings printed by login(1) and sshd(8) at the time of a 1013 new connection have been removed to follow other operating systems and 1014 upstream sshd. 1015 101620100915: 1017 A workaround for a fixed ld bug has been removed in kernel code, 1018 so make sure that your system ld is built from sources after 1019 revision 210245 from 2010-07-19 (r211583 if building head kernel 1020 on stable/8, r211584 for stable/7; both from 2010-08-21). 1021 A symptom of incorrect ld version is different addresses for 1022 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1023 102420100913: 1025 The $ipv6_prefer variable in rc.conf(5) has been split into 1026 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1027 1028 The $ip6addrctl_policy is a variable to choose a pre-defined 1029 address selection policy set by ip6addrctl(8). A value 1030 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1031 default is "AUTO". 1032 1033 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1034 flag (see an entry of 20090926) is set on an interface with no 1035 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1036 security reason. If you want IPv6 link-local address on all 1037 interfaces by default, set this to "YES". 1038 1039 The old ipv6_prefer="YES" is equivalent to 1040 ipv6_activate_all_interfaces="YES" and 1041 ip6addrctl_policy="ipv6_prefer". 1042 104320100913: 1044 DTrace has grown support for userland tracing. Due to this, DTrace is 1045 now i386 and amd64 only. 1046 dtruss(1) is now installed by default on those systems and a new 1047 kernel module is needed for userland tracing: fasttrap. 1048 No changes to your kernel config file are necessary to enable 1049 userland tracing, but you might consider adding 'STRIP=' and 1050 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1051 to have informative userland stack traces in DTrace (ustack). 1052 105320100725: 1054 The acpi_aiboost(4) driver has been removed in favor of the new 1055 aibs(4) driver. You should update your kernel configuration file. 1056 105720100722: 1058 BSD grep has been imported to the base system and it is built by 1059 default. It is completely BSD licensed, highly GNU-compatible, uses 1060 less memory than its GNU counterpart and has a small codebase. 1061 However, it is slower than its GNU counterpart, which is mostly 1062 noticeable for larger searches, for smaller ones it is measurable 1063 but not significant. The reason is complex, the most important factor 1064 is that we lack a modern and efficient regex library and GNU 1065 overcomes this by optimizing the searches internally. Future work 1066 on improving the regex performance is planned, for the meantime, 1067 users that need better performance, can build GNU grep instead by 1068 setting the WITH_GNU_GREP knob. 1069 107020100713: 1071 Due to the import of powerpc64 support, all existing powerpc kernel 1072 configuration files must be updated with a machine directive like this: 1073 machine powerpc powerpc 1074 1075 In addition, an updated config(8) is required to build powerpc kernels 1076 after this change. 1077 107820100713: 1079 A new version of ZFS (version 15) has been merged to -HEAD. 1080 This version uses a python library for the following subcommands: 1081 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1082 For full functionality of these commands the following port must 1083 be installed: sysutils/py-zfs 1084 108520100429: 1086 'vm_page's are now hashed by physical address to an array of mutexes. 1087 Currently this is only used to serialize access to hold_count. Over 1088 time the page queue mutex will be peeled away. This changes the size 1089 of pmap on every architecture. And requires all callers of vm_page_hold 1090 and vm_page_unhold to be updated. 1091 109220100402: 1093 WITH_CTF can now be specified in src.conf (not recommended, there 1094 are some problems with static executables), make.conf (would also 1095 affect ports which do not use GNU make and do not override the 1096 compile targets) or in the kernel config (via "makeoptions 1097 WITH_CTF=yes"). 1098 When WITH_CTF was specified there before this was silently ignored, 1099 so make sure that WITH_CTF is not used in places which could lead 1100 to unwanted behavior. 1101 110220100311: 1103 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1104 to allow 32-bit compatibility on non-x86 platforms. All kernel 1105 configurations on amd64 and ia64 platforms using these options must 1106 be modified accordingly. 1107 110820100113: 1109 The utmp user accounting database has been replaced with utmpx, 1110 the user accounting interface standardized by POSIX. 1111 Unfortunately the semantics of utmp and utmpx don't match, 1112 making it practically impossible to support both interfaces. 1113 The user accounting database is used by tools like finger(1), 1114 last(1), talk(1), w(1) and ac(8). 1115 1116 All applications in the base system use utmpx. This means only 1117 local binaries (e.g. from the ports tree) may still use these 1118 utmp database files. These applications must be rebuilt to make 1119 use of utmpx. 1120 1121 After the system has been upgraded, it is safe to remove the old 1122 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1123 assuming their contents is of no importance anymore. Old wtmp 1124 databases can only be used by last(1) and ac(8) after they have 1125 been converted to the new format using wtmpcvt(1). 1126 112720100108: 1128 Introduce the kernel thread "deadlock resolver" (which can be enabled 1129 via the DEADLKRES option, see NOTES for more details) and the 1130 sleepq_type() function for sleepqueues. 1131 113220091202: 1133 The rc.firewall and rc.firewall6 were unified, and 1134 rc.firewall6 and rc.d/ip6fw were removed. 1135 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1136 variables are obsoleted. Instead, the following new rc 1137 variables are added to rc.d/ipfw: 1138 1139 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1140 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1141 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1142 1143 The meanings correspond to the relevant IPv4 variables. 1144 114520091125: 1146 8.0-RELEASE. 1147 114820091113: 1149 The default terminal emulation for syscons(4) has been changed 1150 from cons25 to xterm on all platforms except pc98. This means 1151 that the /etc/ttys file needs to be updated to ensure correct 1152 operation of applications on the console. 1153 1154 The terminal emulation style can be toggled per window by using 1155 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1156 options can be used to change the compile-time default back to 1157 cons25. 1158 1159 To prevent graphical artifacts, make sure the TERM environment 1160 variable is set to match the terminal emulation that is being 1161 performed by syscons(4). 1162 116320091109: 1164 The layout of the structure ieee80211req_scan_result has changed. 1165 Applications that require wireless scan results (e.g. ifconfig(8)) 1166 from net80211 need to be recompiled. 1167 1168 Applications such as wpa_supplicant(8) may require a full world 1169 build without using NO_CLEAN in order to get synchronized with the 1170 new structure. 1171 117220091025: 1173 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1174 There's one kernel module for each firmware. Adding "device iwnfw" 1175 to the kernel configuration file means including all three firmware 1176 images inside the kernel. If you want to include just the one for 1177 your wireless card, use the devices iwn4965fw, iwn5000fw or 1178 iwn5150fw. 1179 118020090926: 1181 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1182 into rc.d/netif. The changes are the following: 1183 1184 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1185 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1186 Note that both variables need the "inet6" keyword at the head. 1187 1188 Do not set $ipv6_network_interfaces manually if you do not 1189 understand what you are doing. It is not needed in most cases. 1190 1191 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1192 they are obsolete. 1193 1194 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1195 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1196 1197 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1198 all configured interfaces have "inet6 accept_rtadv" in the 1199 $ifconfig_IF_ipv6. These are for backward compatibility. 1200 1201 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1202 functionality of interfaces with no corresponding 1203 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1204 and the default address selection policy of ip6addrctl(8) 1205 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1206 Note that if you want to configure IPv6 functionality on the 1207 disabled interfaces after boot, first you need to clear the flag by 1208 using ifconfig(8) like: 1209 1210 ifconfig em0 inet6 -ifdisabled 1211 1212 If YES, the default address selection policy is set as 1213 IPv6-preferred. 1214 1215 The default value of $ipv6_prefer is NO. 1216 1217 4. If your system need to receive Router Advertisement messages, 1218 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1219 scripts automatically invoke rtsol(8) when the interface becomes 1220 UP. The Router Advertisement messages are used for SLAAC 1221 (State-Less Address AutoConfiguration). 1222 122320090922: 1224 802.11s D3.03 support was committed. This is incompatible with the 1225 previous code, which was based on D3.0. 1226 122720090912: 1228 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1229 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1230 control whether accepting Router Advertisement messages or not. 1231 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1232 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1233 The ifconfig(8) utility now supports these flags. 1234 123520090910: 1236 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1237 mount(8) and -a option for df(1) to see them. 1238 123920090825: 1240 The old tunable hw.bus.devctl_disable has been superseded by 1241 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1242 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1243 is 1000. 1244 124520090813: 1246 Remove the option STOP_NMI. The default action is now to use NMI only 1247 for KDB via the newly introduced function stop_cpus_hard() and 1248 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1249 125020090803: 1251 The stable/8 branch created in subversion. This corresponds to the 1252 RELENG_8 branch in CVS. 1253 125420090719: 1255 Bump the shared library version numbers for all libraries that do not 1256 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1257 __FreeBSD_version to 800105. 1258 125920090714: 1260 Due to changes in the implementation of virtual network stack support, 1261 all network-related kernel modules must be recompiled. As this change 1262 breaks the ABI, bump __FreeBSD_version to 800104. 1263 126420090713: 1265 The TOE interface to the TCP syncache has been modified to remove 1266 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1267 The cxgb driver is the only TOE consumer affected by this change, and 1268 needs to be recompiled along with the kernel. As this change breaks 1269 the ABI, bump __FreeBSD_version to 800103. 1270 127120090712: 1272 Padding has been added to struct tcpcb, sackhint and tcpstat in 1273 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1274 maintaining the ABI. However, this change breaks the ABI, so bump 1275 __FreeBSD_version to 800102. User space tools that rely on the size of 1276 any of these structs (e.g. sockstat) need to be recompiled. 1277 127820090630: 1279 The NFS_LEGACYRPC option has been removed along with the old kernel 1280 RPC implementation that this option selected. Kernel configurations 1281 may need to be adjusted. 1282 128320090629: 1284 The network interface device nodes at /dev/net/<interface> have been 1285 removed. All ioctl operations can be performed the normal way using 1286 routing sockets. The kqueue functionality can generally be replaced 1287 with routing sockets. 1288 128920090628: 1290 The documentation from the FreeBSD Documentation Project (Handbook, 1291 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1292 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1293 129420090624: 1295 The ABI of various structures related to the SYSV IPC API have been 1296 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1297 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1298 800100. 1299 130020090622: 1301 Layout of struct vnet has changed as routing related variables were 1302 moved to their own Vimage module. Modules need to be recompiled. Bump 1303 __FreeBSD_version to 800099. 1304 130520090619: 1306 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1307 respectively. As long as no more than 16 groups per process are used, 1308 no changes should be visible. When more than 16 groups are used, old 1309 binaries may fail if they call getgroups() or getgrouplist() with 1310 statically sized storage. Recompiling will work around this, but 1311 applications should be modified to use dynamically allocated storage 1312 for group arrays as POSIX.1-2008 does not cap an implementation's 1313 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1314 1315 NFS and portalfs mounts may also be affected as the list of groups is 1316 truncated to 16. Users of NFS who use more than 16 groups, should 1317 take care that negative group permissions are not used on the exported 1318 file systems as they will not be reliable unless a GSSAPI based 1319 authentication method is used. 1320 132120090616: 1322 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1323 option compiles in the support for adaptive spinning for lockmgrs 1324 which want to enable it. The lockinit() function now accepts the flag 1325 LK_ADAPTIVE in order to make the lock object subject to adaptive 1326 spinning when both held in write and read mode. 1327 132820090613: 1329 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1330 changed. User applications that use this ioctl need to be rebuilt. 1331 133220090611: 1333 The layout of struct thread has changed. Kernel and modules need to 1334 be rebuilt. 1335 133620090608: 1337 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1338 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1339 134020090602: 1341 window(1) has been removed from the base system. It can now be 1342 installed from ports. The port is called misc/window. 1343 134420090601: 1345 The way we are storing and accessing `routing table' entries has 1346 changed. Programs reading the FIB, like netstat, need to be 1347 re-compiled. 1348 134920090601: 1350 A new netisr implementation has been added for FreeBSD 8. Network 1351 file system modules, such as igmp, ipdivert, and others, should be 1352 rebuilt. 1353 Bump __FreeBSD_version to 800096. 1354 135520090530: 1356 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1357 more valid. 1358 135920090530: 1360 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1361 Bump __FreeBSD_version to 800094. 1362 136320090529: 1364 Add mnt_xflag field to 'struct mount'. File system modules need to be 1365 rebuilt. 1366 Bump __FreeBSD_version to 800093. 1367 136820090528: 1369 The compiling option ADAPTIVE_SX has been retired while it has been 1370 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1371 The KPI for sx_init_flags() changes as accepting flags: 1372 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1373 been introduced in order to handle the reversed logic. 1374 Bump __FreeBSD_version to 800092. 1375 137620090527: 1377 Add support for hierarchical jails. Remove global securelevel. 1378 Bump __FreeBSD_version to 800091. 1379 138020090523: 1381 The layout of struct vnet_net has changed, therefore modules 1382 need to be rebuilt. 1383 Bump __FreeBSD_version to 800090. 1384 138520090523: 1386 The newly imported zic(8) produces a new format in the output. Please 1387 run tzsetup(8) to install the newly created data to /etc/localtime. 1388 138920090520: 1390 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1391 hw.usb.* and is now consistent again with previous releases. 1392 139320090520: 1394 802.11 monitor mode support was revised and driver api's were changed. 1395 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1396 of DLT_IEEE802_11. No user-visible data structures were changed but 1397 applications that use DLT_IEEE802_11 may require changes. 1398 Bump __FreeBSD_version to 800088. 1399 140020090430: 1401 The layout of the following structs has changed: sysctl_oid, 1402 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1403 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1404 panics may be experienced. World rebuild is required for 1405 correctly checking networking state from userland. 1406 Bump __FreeBSD_version to 800085. 1407 140820090429: 1409 MLDv2 and Source-Specific Multicast (SSM) have been merged 1410 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1411 The implementation of SSM within FreeBSD's IPv6 stack closely 1412 follows the IPv4 implementation. 1413 1414 For kernel developers: 1415 1416 * The most important changes are that the ip6_output() and 1417 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1418 and this lock has been downgraded to a non-recursive mutex. 1419 1420 * As with the changes to the IPv4 stack to support SSM, filtering 1421 of inbound multicast traffic must now be performed by transport 1422 protocols within the IPv6 stack. This does not apply to TCP and 1423 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1424 1425 * The KPIs used by IPv6 multicast are similar to those used by 1426 the IPv4 stack, with the following differences: 1427 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1428 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1429 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1430 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1431 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1432 for MLDv1 have an additional 'timer' argument which is used to 1433 jitter the initial membership report for the solicited-node 1434 multicast membership on-link. 1435 * This is not strictly needed for MLDv2, which already jitters 1436 its report transmissions. However, the 'timer' argument is 1437 preserved in case MLDv1 is active on the interface. 1438 1439 * The KAME linked-list based IPv6 membership implementation has 1440 been refactored to use a vector similar to that used by the IPv4 1441 stack. 1442 Code which maintains a list of its own multicast memberships 1443 internally, e.g. carp, has been updated to reflect the new 1444 semantics. 1445 1446 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1447 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1448 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1449 implementation constraint which needs to be addressed in HEAD. 1450 1451 For application developers: 1452 1453 * The changes are broadly similar to those made for the IPv4 1454 stack. 1455 1456 * The use of IPv4 and IPv6 multicast socket options on the same 1457 socket, using mapped addresses, HAS NOT been tested or supported. 1458 1459 * There are a number of issues with the implementation of various 1460 IPv6 multicast APIs which need to be resolved in the API surface 1461 before the implementation is fully compatible with KAME userland 1462 use, and these are mostly to do with interface index treatment. 1463 1464 * The literature available discusses the use of either the delta / ASM 1465 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1466 using setsourcefilter(3)/getsourcefilter(3). For more information 1467 please refer to RFC 3768, 'Socket Interface Extensions for 1468 Multicast Source Filters'. 1469 1470 * Applications which use the published RFC 3678 APIs should be fine. 1471 1472 For systems administrators: 1473 1474 * The mtest(8) utility has been refactored to support IPv6, in 1475 addition to IPv4. Interface addresses are no longer accepted 1476 as arguments, their names must be used instead. The utility 1477 will map the interface name to its first IPv4 address as 1478 returned by getifaddrs(3). 1479 1480 * The ifmcstat(8) utility has also been updated to print the MLDv2 1481 endpoint state and source filter lists via sysctl(3). 1482 1483 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1484 loopback of IPv6 multicast datagrams by default; it defaults to 1 1485 to preserve the existing behaviour. Disabling multicast loopback is 1486 recommended for optimal system performance. 1487 1488 * The IPv6 MROUTING code has been changed to examine this sysctl 1489 instead of attempting to perform a group lookup before looping 1490 back forwarded datagrams. 1491 1492 Bump __FreeBSD_version to 800084. 1493 149420090422: 1495 Implement low-level Bluetooth HCI API. 1496 Bump __FreeBSD_version to 800083. 1497 149820090419: 1499 The layout of struct malloc_type, used by modules to register new 1500 memory allocation types, has changed. Most modules will need to 1501 be rebuilt or panics may be experienced. 1502 Bump __FreeBSD_version to 800081. 1503 150420090415: 1505 Anticipate overflowing inp_flags - add inp_flags2. 1506 This changes most offsets in inpcb, so checking v4 connection 1507 state will require a world rebuild. 1508 Bump __FreeBSD_version to 800080. 1509 151020090415: 1511 Add an llentry to struct route and struct route_in6. Modules 1512 embedding a struct route will need to be recompiled. 1513 Bump __FreeBSD_version to 800079. 1514 151520090414: 1516 The size of rt_metrics_lite and by extension rtentry has changed. 1517 Networking administration apps will need to be recompiled. 1518 The route command now supports show as an alias for get, weighting 1519 of routes, sticky and nostick flags to alter the behavior of stateful 1520 load balancing. 1521 Bump __FreeBSD_version to 800078. 1522 152320090408: 1524 Do not use Giant for kbdmux(4) locking. This is wrong and 1525 apparently causing more problems than it solves. This will 1526 re-open the issue where interrupt handlers may race with 1527 kbdmux(4) in polling mode. Typical symptoms include (but 1528 not limited to) duplicated and/or missing characters when 1529 low level console functions (such as gets) are used while 1530 interrupts are enabled (for example geli password prompt, 1531 mountroot prompt etc.). Disabling kbdmux(4) may help. 1532 153320090407: 1534 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1535 kernel modules referencing any of the above need to be recompiled. 1536 Bump __FreeBSD_version to 800075. 1537 153820090320: 1539 GEOM_PART has become the default partition slicer for storage devices, 1540 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1541 introduces some changes: 1542 1543 MSDOS/EBR: the devices created from MSDOS extended partition entries 1544 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1545 to devices with offset-based names. fstabs may need to be modified. 1546 1547 BSD: the "geometry does not match label" warning is harmless in most 1548 cases but it points to problems in file system misalignment with 1549 disk geometry. The "c" partition is now implicit, covers the whole 1550 top-level drive and cannot be (mis)used by users. 1551 1552 General: Kernel dumps are now not allowed to be written to devices 1553 whose partition types indicate they are meant to be used for file 1554 systems (or, in case of MSDOS partitions, as something else than 1555 the "386BSD" type). 1556 1557 Most of these changes date approximately from 200812. 1558 155920090319: 1560 The uscanner(4) driver has been removed from the kernel. This follows 1561 Linux removing theirs in 2.6 and making libusb the default interface 1562 (supported by sane). 1563 156420090319: 1565 The multicast forwarding code has been cleaned up. netstat(1) 1566 only relies on KVM now for printing bandwidth upcall meters. 1567 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1568 ip6_mroute_mod respectively. The config(5) options for statically 1569 compiling this code remain the same, i.e. 'options MROUTING'. 1570 157120090315: 1572 Support for the IFF_NEEDSGIANT network interface flag has been 1573 removed, which means that non-MPSAFE network device drivers are no 1574 longer supported. In particular, if_ar, if_sr, and network device 1575 drivers from the old (legacy) USB stack can no longer be built or 1576 used. 1577 157820090313: 1579 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1580 a bunch of new language catalog files have also been added. 1581 This means that some common libc messages are now localized and 1582 they depend on the LC_MESSAGES environmental variable. 1583 158420090313: 1585 The k8temp(4) driver has been renamed to amdtemp(4) since 1586 support for Family 10 and Family 11 CPU families was added. 1587 158820090309: 1589 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1590 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1591 1592 For kernel developers, the most important changes are that the 1593 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1594 and this lock has been downgraded to a non-recursive mutex. 1595 1596 Transport protocols (UDP, Raw IP) are now responsible for filtering 1597 inbound multicast traffic according to group membership and source 1598 filters. The imo_multicast_filter() KPI exists for this purpose. 1599 Transports which do not use multicast (SCTP, TCP) already reject 1600 multicast by default. Forwarding and receive performance may improve 1601 as a mutex acquisition is no longer needed in the ip_input() 1602 low-level input path. in_addmulti() and in_delmulti() are shimmed 1603 to new KPIs which exist to support SSM in-kernel. 1604 1605 For application developers, it is recommended that loopback of 1606 multicast datagrams be disabled for best performance, as this 1607 will still cause the lock to be taken for each looped-back 1608 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1609 be tuned to 0 to disable loopback by default; it defaults to 1 1610 to preserve the existing behaviour. 1611 1612 For systems administrators, to obtain best performance with 1613 multicast reception and multiple groups, it is always recommended 1614 that a card with a suitably precise hash filter is used. Hash 1615 collisions will still result in the lock being taken within the 1616 transport protocol input path to check group membership. 1617 1618 If deploying FreeBSD in an environment with IGMP snooping switches, 1619 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1620 enabled; this forces 224.0.0.0/24 group membership to be announced 1621 via IGMP. 1622 1623 The size of 'struct igmpstat' has changed; netstat needs to be 1624 recompiled to reflect this. 1625 Bump __FreeBSD_version to 800070. 1626 162720090309: 1628 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1629 updated to use it. This requires a buildworld/installworld in order to 1630 update the library and dependencies (usbconfig, etc). Its advisable to 1631 rebuild all ports which uses libusb. More specific directions are given 1632 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1633 libusb are no longer required and can be removed. 1634 163520090302: 1636 A workaround is committed to allow the creation of System V shared 1637 memory segment of size > 2 GB on the 64-bit architectures. 1638 Due to a limitation of the existing ABI, the shm_segsz member 1639 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1640 wrong for large segments. Note that limits must be explicitly 1641 raised to allow such segments to be created. 1642 164320090301: 1644 The layout of struct ifnet has changed, requiring a rebuild of all 1645 network device driver modules. 1646 164720090227: 1648 The /dev handling for the new USB stack has changed, a 1649 buildworld/installworld is required for libusb20. 1650 165120090223: 1652 The new USB2 stack has now been permanently moved in and all kernel and 1653 module names reverted to their previous values (eg, usb, ehci, ohci, 1654 ums, ...). The old usb stack can be compiled in by prefixing the name 1655 with the letter 'o', the old usb modules have been removed. 1656 Updating entry 20090216 for xorg and 20090215 for libmap may still 1657 apply. 1658 165920090217: 1660 The rc.conf(5) option if_up_delay has been renamed to 1661 defaultroute_delay to better reflect its purpose. If you have 1662 customized this setting in /etc/rc.conf you need to update it to 1663 use the new name. 1664 166520090216: 1666 xorg 7.4 wants to configure its input devices via hald which does not 1667 yet work with USB2. If the keyboard/mouse does not work in xorg then 1668 add 1669 Option "AllowEmptyInput" "off" 1670 to your ServerLayout section. This will cause X to use the configured 1671 kbd and mouse sections from your xorg.conf. 1672 167320090215: 1674 The GENERIC kernels for all architectures now default to the new USB2 1675 stack. No kernel config options or code have been removed so if a 1676 problem arises please report it and optionally revert to the old USB 1677 stack. If you are loading USB kernel modules or have a custom kernel 1678 that includes GENERIC then ensure that usb names are also changed over, 1679 eg uftdi -> usb2_serial_ftdi. 1680 1681 Older programs linked against the ports libusb 0.1 need to be 1682 redirected to the new stack's libusb20. /etc/libmap.conf can 1683 be used for this: 1684 # Map old usb library to new one for usb2 stack 1685 libusb-0.1.so.8 libusb20.so.1 1686 168720090209: 1688 All USB ethernet devices now attach as interfaces under the name ueN 1689 (eg. ue0). This is to provide a predictable name as vendors often 1690 change usb chipsets in a product without notice. 1691 169220090203: 1693 The ichsmb(4) driver has been changed to require SMBus slave 1694 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1695 All of the other SMBus controller drivers require left-justified 1696 slave addresses, so this change makes all the drivers provide the 1697 same interface. 1698 169920090201: 1700 INET6 statistics (struct ip6stat) was updated. 1701 netstat(1) needs to be recompiled. 1702 170320090119: 1704 NTFS has been removed from GENERIC kernel on amd64 to match 1705 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1706 will load ntfs.ko module automatically when NTFS support is 1707 actually needed, unless ntfs.ko is not installed or security 1708 level prohibits loading kernel modules. If either is the case, 1709 "options NTFS" has to be added into kernel config. 1710 171120090115: 1712 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1713 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1714 800061. User space tools that rely on the size of struct tcpcb in 1715 tcp_var.h (e.g. sockstat) need to be recompiled. 1716 171720081225: 1718 ng_tty(4) module updated to match the new TTY subsystem. 1719 Due to API change, user-level applications must be updated. 1720 New API support added to mpd5 CVS and expected to be present 1721 in next mpd5.3 release. 1722 172320081219: 1724 With __FreeBSD_version 800060 the makefs tool is part of 1725 the base system (it was a port). 1726 172720081216: 1728 The afdata and ifnet locks have been changed from mutexes to 1729 rwlocks, network modules will need to be re-compiled. 1730 173120081214: 1732 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1733 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1734 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1735 architecture and 40 bytes on 64-bit architecture. The userland 1736 applications "arp" and "ndp" have been updated accordingly. 1737 The output from "netstat -r" shows only routing entries and 1738 none of the L2 information. 1739 174020081130: 1741 __FreeBSD_version 800057 marks the switchover from the 1742 binary ath hal to source code. Users must add the line: 1743 1744 options AH_SUPPORT_AR5416 1745 1746 to their kernel config files when specifying: 1747 1748 device ath_hal 1749 1750 The ath_hal module no longer exists; the code is now compiled 1751 together with the driver in the ath module. It is now 1752 possible to tailor chip support (i.e. reduce the set of chips 1753 and thereby the code size); consult ath_hal(4) for details. 1754 175520081121: 1756 __FreeBSD_version 800054 adds memory barriers to 1757 <machine/atomic.h>, new interfaces to ifnet to facilitate 1758 multiple hardware transmit queues for cards that support 1759 them, and a lock-less ring-buffer implementation to 1760 enable drivers to more efficiently manage queueing of 1761 packets. 1762 176320081117: 1764 A new version of ZFS (version 13) has been merged to -HEAD. 1765 This version has zpool attribute "listsnapshots" off by 1766 default, which means "zfs list" does not show snapshots, 1767 and is the same as Solaris behavior. 1768 176920081028: 1770 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1771 177220081009: 1773 The uhci, ohci, ehci and slhci USB Host controller drivers have 1774 been put into separate modules. If you load the usb module 1775 separately through loader.conf you will need to load the 1776 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1777 controller add the following to loader.conf: 1778 1779 uhci_load="YES" 1780 ehci_load="YES" 1781 178220081009: 1783 The ABI used by the PMC toolset has changed. Please keep 1784 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1785 sync. 1786 178720081009: 1788 atapci kernel module now includes only generic PCI ATA 1789 driver. AHCI driver moved to ataahci kernel module. 1790 All vendor-specific code moved into separate kernel modules: 1791 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1792 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1793 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1794 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1795 179620080820: 1797 The TTY subsystem of the kernel has been replaced by a new 1798 implementation, which provides better scalability and an 1799 improved driver model. Most common drivers have been migrated to 1800 the new TTY subsystem, while others have not. The following 1801 drivers have not yet been ported to the new TTY layer: 1802 1803 PCI/ISA: 1804 cy, digi, rc, rp, sio 1805 1806 USB: 1807 ubser, ucycom 1808 1809 Line disciplines: 1810 ng_h4, ng_tty, ppp, sl, snp 1811 1812 Adding these drivers to your kernel configuration file shall 1813 cause compilation to fail. 1814 181520080818: 1816 ntpd has been upgraded to 4.2.4p5. 1817 181820080801: 1819 OpenSSH has been upgraded to 5.1p1. 1820 1821 For many years, FreeBSD's version of OpenSSH preferred DSA 1822 over RSA for host and user authentication keys. With this 1823 upgrade, we've switched to the vendor's default of RSA over 1824 DSA. This may cause upgraded clients to warn about unknown 1825 host keys even for previously known hosts. Users should 1826 follow the usual procedure for verifying host keys before 1827 accepting the RSA key. 1828 1829 This can be circumvented by setting the "HostKeyAlgorithms" 1830 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1831 command line. 1832 1833 Please note that the sequence of keys offered for 1834 authentication has been changed as well. You may want to 1835 specify IdentityFile in a different order to revert this 1836 behavior. 1837 183820080713: 1839 The sio(4) driver has been removed from the i386 and amd64 1840 kernel configuration files. This means uart(4) is now the 1841 default serial port driver on those platforms as well. 1842 1843 To prevent collisions with the sio(4) driver, the uart(4) driver 1844 uses different names for its device nodes. This means the 1845 onboard serial port will now most likely be called "ttyu0" 1846 instead of "ttyd0". You may need to reconfigure applications to 1847 use the new device names. 1848 1849 When using the serial port as a boot console, be sure to update 1850 /boot/device.hints and /etc/ttys before booting the new kernel. 1851 If you forget to do so, you can still manually specify the hints 1852 at the loader prompt: 1853 1854 set hint.uart.0.at="isa" 1855 set hint.uart.0.port="0x3F8" 1856 set hint.uart.0.flags="0x10" 1857 set hint.uart.0.irq="4" 1858 boot -s 1859 186020080609: 1861 The gpt(8) utility has been removed. Use gpart(8) to partition 1862 disks instead. 1863 186420080603: 1865 The version that Linuxulator emulates was changed from 2.4.2 1866 to 2.6.16. If you experience any problems with Linux binaries 1867 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1868 if it fixes the problem contact emulation mailing list. 1869 187020080525: 1871 ISDN4BSD (I4B) was removed from the src tree. You may need to 1872 update a your kernel configuration and remove relevant entries. 1873 187420080509: 1875 I have checked in code to support multiple routing tables. 1876 See the man pages setfib(1) and setfib(2). 1877 This is a hopefully backwards compatible version, 1878 but to make use of it you need to compile your kernel 1879 with options ROUTETABLES=2 (or more up to 16). 1880 188120080420: 1882 The 802.11 wireless support was redone to enable multi-bss 1883 operation on devices that are capable. The underlying device 1884 is no longer used directly but instead wlanX devices are 1885 cloned with ifconfig. This requires changes to rc.conf files. 1886 For example, change: 1887 ifconfig_ath0="WPA DHCP" 1888 to 1889 wlans_ath0=wlan0 1890 ifconfig_wlan0="WPA DHCP" 1891 see rc.conf(5) for more details. In addition, mergemaster of 1892 /etc/rc.d is highly recommended. Simultaneous update of userland 1893 and kernel wouldn't hurt either. 1894 1895 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1896 modules were merged into the base wlan module. All references 1897 to these modules (e.g. in kernel config files) must be removed. 1898 189920080408: 1900 psm(4) has gained write(2) support in native operation level. 1901 Arbitrary commands can be written to /dev/psm%d and status can 1902 be read back from it. Therefore, an application is responsible 1903 for status validation and error recovery. It is a no-op in 1904 other operation levels. 1905 190620080312: 1907 Support for KSE threading has been removed from the kernel. To 1908 run legacy applications linked against KSE libmap.conf may 1909 be used. The following libmap.conf may be used to ensure 1910 compatibility with any prior release: 1911 1912 libpthread.so.1 libthr.so.1 1913 libpthread.so.2 libthr.so.2 1914 libkse.so.3 libthr.so.3 1915 191620080301: 1917 The layout of struct vmspace has changed. This affects libkvm 1918 and any executables that link against libkvm and use the 1919 kvm_getprocs() function. In particular, but not exclusively, 1920 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1921 The effects are minimal, but it's advisable to upgrade world 1922 nonetheless. 1923 192420080229: 1925 The latest em driver no longer has support in it for the 1926 82575 adapter, this is now moved to the igb driver. The 1927 split was done to make new features that are incompatible 1928 with older hardware easier to do. 1929 193020080220: 1931 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1932 likewise the kernel option is now GEOM_LINUX_LVM. 1933 193420080211: 1935 The default NFS mount mode has changed from UDP to TCP for 1936 increased reliability. If you rely on (insecurely) NFS 1937 mounting across a firewall you may need to update your 1938 firewall rules. 1939 194020080208: 1941 Belatedly note the addition of m_collapse for compacting 1942 mbuf chains. 1943 194420080126: 1945 The fts(3) structures have been changed to use adequate 1946 integer types for their members and so to be able to cope 1947 with huge file trees. The old fts(3) ABI is preserved 1948 through symbol versioning in libc, so third-party binaries 1949 using fts(3) should still work, although they will not take 1950 advantage of the extended types. At the same time, some 1951 third-party software might fail to build after this change 1952 due to unportable assumptions made in its source code about 1953 fts(3) structure members. Such software should be fixed 1954 by its vendor or, in the worst case, in the ports tree. 1955 FreeBSD_version 800015 marks this change for the unlikely 1956 case that a portable fix is impossible. 1957 195820080123: 1959 To upgrade to -current after this date, you must be running 1960 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1961 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1962 196320071128: 1964 The ADAPTIVE_GIANT kernel option has been retired because its 1965 functionality is the default now. 1966 196720071118: 1968 The AT keyboard emulation of sunkbd(4) has been turned on 1969 by default. In order to make the special symbols of the Sun 1970 keyboards driven by sunkbd(4) work under X these now have 1971 to be configured the same way as Sun USB keyboards driven 1972 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1973 1974 Option "XkbLayout" "us" 1975 Option "XkbRules" "xorg" 1976 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1977 197820071024: 1979 It has been decided that it is desirable to provide ABI 1980 backwards compatibility to the FreeBSD 4/5/6 versions of the 1981 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1982 broken with the introduction of PCI domain support (see the 1983 20070930 entry). Unfortunately, this required the ABI of 1984 PCIOCGETCONF to be broken again in order to be able to 1985 provide backwards compatibility to the old version of that 1986 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1987 again. As for prominent ports this affects neither pciutils 1988 nor xorg-server this time, the hal port needs to be rebuilt 1989 however. 1990 199120071020: 1992 The misnamed kthread_create() and friends have been renamed 1993 to kproc_create() etc. Many of the callers already 1994 used kproc_start().. 1995 I will return kthread_create() and friends in a while 1996 with implementations that actually create threads, not procs. 1997 Renaming corresponds with version 800002. 1998 199920071010: 2000 RELENG_7 branched. 2001 2002COMMON ITEMS: 2003 2004 General Notes 2005 ------------- 2006 Avoid using make -j when upgrading. While generally safe, there are 2007 sometimes problems using -j to upgrade. If your upgrade fails with 2008 -j, please try again without -j. From time to time in the past there 2009 have been problems using -j with buildworld and/or installworld. This 2010 is especially true when upgrading between "distant" versions (eg one 2011 that cross a major release boundary or several minor releases, or when 2012 several months have passed on the -current branch). 2013 2014 Sometimes, obscure build problems are the result of environment 2015 poisoning. This can happen because the make utility reads its 2016 environment when searching for values for global variables. To run 2017 your build attempts in an "environmental clean room", prefix all make 2018 commands with 'env -i '. See the env(1) manual page for more details. 2019 2020 When upgrading from one major version to another it is generally best 2021 to upgrade to the latest code in the currently installed branch first, 2022 then do an upgrade to the new branch. This is the best-tested upgrade 2023 path, and has the highest probability of being successful. Please try 2024 this approach before reporting problems with a major version upgrade. 2025 2026 When upgrading a live system, having a root shell around before 2027 installing anything can help undo problems. Not having a root shell 2028 around can lead to problems if pam has changed too much from your 2029 starting point to allow continued authentication after the upgrade. 2030 2031 ZFS notes 2032 --------- 2033 When upgrading the boot ZFS pool to a new version, always follow 2034 these two steps: 2035 2036 1.) recompile and reinstall the ZFS boot loader and boot block 2037 (this is part of "make buildworld" and "make installworld") 2038 2039 2.) update the ZFS boot block on your boot drive 2040 2041 The following example updates the ZFS boot block on the first 2042 partition (freebsd-boot) of a GPT partitioned drive ad0: 2043 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2044 2045 Non-boot pools do not need these updates. 2046 2047 To build a kernel 2048 ----------------- 2049 If you are updating from a prior version of FreeBSD (even one just 2050 a few days old), you should follow this procedure. It is the most 2051 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2052 2053 make kernel-toolchain 2054 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2055 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2056 2057 To test a kernel once 2058 --------------------- 2059 If you just want to boot a kernel once (because you are not sure 2060 if it works, or if you want to boot a known bad kernel to provide 2061 debugging information) run 2062 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2063 nextboot -k testkernel 2064 2065 To just build a kernel when you know that it won't mess you up 2066 -------------------------------------------------------------- 2067 This assumes you are already running a CURRENT system. Replace 2068 ${arch} with the architecture of your machine (e.g. "i386", 2069 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2070 2071 cd src/sys/${arch}/conf 2072 config KERNEL_NAME_HERE 2073 cd ../compile/KERNEL_NAME_HERE 2074 make depend 2075 make 2076 make install 2077 2078 If this fails, go to the "To build a kernel" section. 2079 2080 To rebuild everything and install it on the current system. 2081 ----------------------------------------------------------- 2082 # Note: sometimes if you are running current you gotta do more than 2083 # is listed here if you are upgrading from a really old current. 2084 2085 <make sure you have good level 0 dumps> 2086 make buildworld 2087 make kernel KERNCONF=YOUR_KERNEL_HERE 2088 [1] 2089 <reboot in single user> [3] 2090 mergemaster -p [5] 2091 make installworld 2092 mergemaster -i [4] 2093 make delete-old [6] 2094 <reboot> 2095 2096 To cross-install current onto a separate partition 2097 -------------------------------------------------- 2098 # In this approach we use a separate partition to hold 2099 # current's root, 'usr', and 'var' directories. A partition 2100 # holding "/", "/usr" and "/var" should be about 2GB in 2101 # size. 2102 2103 <make sure you have good level 0 dumps> 2104 <boot into -stable> 2105 make buildworld 2106 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2107 <maybe newfs current's root partition> 2108 <mount current's root partition on directory ${CURRENT_ROOT}> 2109 make installworld DESTDIR=${CURRENT_ROOT} 2110 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2111 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2112 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2113 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2114 <reboot into current> 2115 <do a "native" rebuild/install as described in the previous section> 2116 <maybe install compatibility libraries from ports/misc/compat*> 2117 <reboot> 2118 2119 2120 To upgrade in-place from stable to current 2121 ---------------------------------------------- 2122 <make sure you have good level 0 dumps> 2123 make buildworld [9] 2124 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2125 [1] 2126 <reboot in single user> [3] 2127 mergemaster -p [5] 2128 make installworld 2129 mergemaster -i [4] 2130 make delete-old [6] 2131 <reboot> 2132 2133 Make sure that you've read the UPDATING file to understand the 2134 tweaks to various things you need. At this point in the life 2135 cycle of current, things change often and you are on your own 2136 to cope. The defaults can also change, so please read ALL of 2137 the UPDATING entries. 2138 2139 Also, if you are tracking -current, you must be subscribed to 2140 freebsd-current@freebsd.org. Make sure that before you update 2141 your sources that you have read and understood all the recent 2142 messages there. If in doubt, please track -stable which has 2143 much fewer pitfalls. 2144 2145 [1] If you have third party modules, such as vmware, you 2146 should disable them at this point so they don't crash your 2147 system on reboot. 2148 2149 [3] From the bootblocks, boot -s, and then do 2150 fsck -p 2151 mount -u / 2152 mount -a 2153 cd src 2154 adjkerntz -i # if CMOS is wall time 2155 Also, when doing a major release upgrade, it is required that 2156 you boot into single user mode to do the installworld. 2157 2158 [4] Note: This step is non-optional. Failure to do this step 2159 can result in a significant reduction in the functionality of the 2160 system. Attempting to do it by hand is not recommended and those 2161 that pursue this avenue should read this file carefully, as well 2162 as the archives of freebsd-current and freebsd-hackers mailing lists 2163 for potential gotchas. The -U option is also useful to consider. 2164 See mergemaster(8) for more information. 2165 2166 [5] Usually this step is a noop. However, from time to time 2167 you may need to do this if you get unknown user in the following 2168 step. It never hurts to do it all the time. You may need to 2169 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2170 install) after the buildworld before this step if you last updated 2171 from current before 20130425 or from -stable before 20130430. 2172 2173 [6] This only deletes old files and directories. Old libraries 2174 can be deleted by "make delete-old-libs", but you have to make 2175 sure that no program is using those libraries anymore. 2176 2177 [8] In order to have a kernel that can run the 4.x binaries needed to 2178 do an installworld, you must include the COMPAT_FREEBSD4 option in 2179 your kernel. Failure to do so may leave you with a system that is 2180 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2181 required to run the 5.x binaries on more recent kernels. And so on 2182 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2183 2184 Make sure that you merge any new devices from GENERIC since the 2185 last time you updated your kernel config file. 2186 2187 [9] When checking out sources, you must include the -P flag to have 2188 cvs prune empty directories. 2189 2190 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2191 "?=" instead of the "=" assignment operator, so that buildworld can 2192 override the CPUTYPE if it needs to. 2193 2194 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2195 not on the command line, or in /etc/make.conf. buildworld will 2196 warn if it is improperly defined. 2197FORMAT: 2198 2199This file contains a list, in reverse chronological order, of major 2200breakages in tracking -current. It is not guaranteed to be a complete 2201list of such breakages, and only contains entries since October 10, 2007. 2202If you need to see UPDATING entries from before that date, you will need 2203to fetch an UPDATING file from an older FreeBSD release. 2204 2205Copyright information: 2206 2207Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2208 2209Redistribution, publication, translation and use, with or without 2210modification, in full or in part, in any form or format of this 2211document are permitted without further permission from the author. 2212 2213THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2214IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2215WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2216DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2217INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2218(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2219SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2220HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2221STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2222IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2223POSSIBILITY OF SUCH DAMAGE. 2224 2225Contact Warner Losh if you have any questions about your use of 2226this document. 2227 2228$FreeBSD: stable/10/UPDATING 286120 2015-07-31 09:43:07Z smh $ 2229