UPDATING revision 284787
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 1920150624: 20 An additional fix for the issue described in the 20150614 sendmail 21 entry below has been been committed in revision 284786. 22 2320150615: 24 The fix for the issue described in the 20150614 sendmail entry 25 below has been been committed in revision 284485. The work 26 around described in that entry is no longer needed unless the 27 default setting is overridden by a confDH_PARAMETERS configuration 28 setting of '5' or pointing to a 512 bit DH parameter file. 29 3020150614: 31 The import of openssl to address the FreeBSD-SA-15:10.openssl 32 security advisory includes a change which rejects handshakes 33 with DH parameters below 768 bits. sendmail releases prior 34 to 8.15.2 (not yet released), defaulted to a 512 bit 35 DH parameter setting for client connections. To work around 36 this interoperability, sendmail can be configured to use a 37 2048 bit DH parameter by: 38 39 1. Edit /etc/mail/`hostname`.mc 40 2. If a setting for confDH_PARAMETERS does not exist or 41 exists and is set to a string beginning with '5', 42 replace it with '2'. 43 3. If a setting for confDH_PARAMETERS exists and is set to 44 a file path, create a new file with: 45 openssl dhparam -out /path/to/file 2048 46 4. Rebuild the .cf file: 47 cd /etc/mail/; make; make install 48 5. Restart sendmail: 49 cd /etc/mail/; make restart 50 51 A sendmail patch is coming, at which time this file will be 52 updated. 53 5420150601: 55 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 56 defined in symlink(7); previously symlinks were silently ignored. 57 5820150430: 59 The const qualifier has been removed from iconv(3) to comply with 60 POSIX. The ports tree is aware of this from r384038 onwards. 61 6220141215: 63 At svn r275807, The default linux compat kernel ABI has been adjusted 64 to 2.6.18 in support of the linux-c6 compat ports infrastructure 65 update. If you wish to continue using the linux-f10 compat ports, 66 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 67 encouraged to update their linux-compat packages to linux-c6 during 68 their next update cycle. 69 70 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 71 7220141205: 73 pjdfstest has been integrated into kyua as an opt-in test suite. 74 Please see share/doc/pjdfstest/README for a more details on how to 75 execute it. 76 7720141118: 78 10.1-RELEASE. 79 8020140904: 81 The ofwfb driver, used to provide a graphics console on PowerPC when 82 using vt(4), no longer allows mmap() of all of physical memory. This 83 will prevent Xorg on PowerPC with some ATI graphics cards from 84 initializing properly unless x11-servers/xorg-server is updated to 85 1.12.4_8 or newer. 86 8720140831: 88 The libatf-c and libatf-c++ major versions were downgraded to 0 and 89 1 respectively to match the upstream numbers. They were out of 90 sync because, when they were originally added to FreeBSD, the 91 upstream versions were not respected. These libraries are private 92 and not yet built by default, so renumbering them should be a 93 non-issue. However, unclean source trees will yield broken test 94 programs once the operator executes "make delete-old-libs" after a 95 "make installworld". 96 97 Additionally, the atf-sh binary was made private by moving it into 98 /usr/libexec/. Already-built shell test programs will keep the 99 path to the old binary so they will break after "make delete-old" 100 is run. 101 102 If you are using WITH_TESTS=yes (not the default), wipe the object 103 tree and rebuild from scratch to prevent spurious test failures. 104 This is only needed once: the misnumbered libraries and misplaced 105 binaries have been added to OptionalObsoleteFiles.inc so they will 106 be removed during a clean upgrade. 107 10820140814: 109 The ixgbe tunables now match their sysctl counterparts, for example: 110 hw.ixgbe.enable_aim => hw.ix.enable_aim 111 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 112 11320140801: 114 The NFSv4.1 server committed by r269398 changes the internal 115 function call interfaces used between the NFS and krpc modules. 116 As such, __FreeBSD_version was bumped. 117 11820140729: 119 The default unbound configuration has been modified to address 120 issues with reverse lookups on networks that use private 121 address ranges. If you use the local_unbound service, run 122 "service local_unbound setup" as root to regenerate your 123 configuration, then "service local_unbound reload" to load the 124 new configuration. 125 12620140717: 127 It is no longer necessary to include the dwarf version in your DEBUG 128 options in your kernel config file. The bug that required it to be 129 placed in the config file has bene fixed. DEBUG should now just 130 contain -g. The build system will automatically update things 131 to do the right thing. 132 13320140715: 134 Several ABI breaking changes were merged to CTL and new iSCSI code. 135 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 136 iscsictl need to be rebuilt to work with a new kernel. 137 13820140708: 139 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 140 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 141 which differs from the behaviour controlled by this knob.) 142 14320140608: 144 On i386 and amd64 systems, the onifconsole flag is now set by default 145 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 146 as a login TTY if it is set in the bootloader as an active kernel 147 console. No changes in behavior should result otherwise. To revert to 148 the previous behavior, set ttyu0 to "off" in /etc/ttys. 149 15020140512: 151 Clang and llvm have been upgraded to 3.4.1 release. 152 15320140321: 154 Clang and llvm have been upgraded to 3.4 release. 155 15620140306: 157 If a Makefile in a tests/ directory was auto-generating a Kyuafile 158 instead of providing an explicit one, this would prevent such 159 Makefile from providing its own Kyuafile in the future during 160 NO_CLEAN builds. This has been fixed in the Makefiles but manual 161 intervention is needed to clean an objdir if you use NO_CLEAN: 162 # find /usr/obj -name Kyuafile | xargs rm -f 163 16420140303: 165 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 166 capability mode support. Please note that enabling the feature in 167 kernel is still highly recommended. 168 16920140227: 170 OpenSSH is now built with sandbox support, and will use sandbox as 171 the default privilege separation method. This requires Capsicum 172 capability mode support in kernel. 173 17420140216: 175 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 176 been deprecated and will not be part of FreeBSD 11.0 and later 177 releases. If you use this driver, please consider switching to 178 the nfe(4) driver instead. 179 18020140120: 181 10.0-RELEASE. 182 18320131216: 184 The behavior of gss_pseudo_random() for the krb5 mechanism 185 has changed, for applications requesting a longer random string 186 than produced by the underlying enctype's pseudo-random() function. 187 In particular, the random string produced from a session key of 188 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 189 be different at the 17th octet and later, after this change. 190 The counter used in the PRF+ construction is now encoded as a 191 big-endian integer in accordance with RFC 4402. 192 __FreeBSD_version is bumped to 1000701. 193 19420131108: 195 The WITHOUT_ATF build knob has been removed and its functionality 196 has been subsumed into the more generic WITHOUT_TESTS. If you were 197 using the former to disable the build of the ATF libraries, you 198 should change your settings to use the latter. 199 20020131031: 201 The default version of mtree is nmtree which is obtained from 202 NetBSD. The output is generally the same, but may vary 203 slightly. If you found you need identical output adding 204 "-F freebsd9" to the command line should do the trick. For the 205 time being, the old mtree is available as fmtree. 206 20720131014: 208 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 209 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 210 1.1.4_8 and verify bsdyml not linked in, before running "make 211 delete-old-libs": 212 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 213 or 214 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 215 21620131010: 217 The rc.d/jail script has been updated to support jail(8) 218 configuration file. The "jail_<jname>_*" rc.conf(5) variables 219 for per-jail configuration are automatically converted to 220 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 221 This is transparently backward compatible. See below about some 222 incompatibilities and rc.conf(5) manual page for more details. 223 224 These variables are now deprecated in favor of jail(8) configuration 225 file. One can use "rc.d/jail config <jname>" command to generate 226 a jail(8) configuration file in /var/run/jail.<jname>.conf without 227 running the jail(8) utility. The default pathname of the 228 configuration file is /etc/jail.conf and can be specified by 229 using $jail_conf or $jail_<jname>_conf variables. 230 231 Please note that jail_devfs_ruleset accepts an integer at 232 this moment. Please consider to rewrite the ruleset name 233 with an integer. 234 23520130930: 236 BIND has been removed from the base system. If all you need 237 is a local resolver, simply enable and start the local_unbound 238 service instead. Otherwise, several versions of BIND are 239 available in the ports tree. The dns/bind99 port is one example. 240 241 With this change, nslookup(1) and dig(1) are no longer in the base 242 system. Users should instead use host(1) and drill(1) which are 243 in the base system. Alternatively, nslookup and dig can 244 be obtained by installing the dns/bind-tools port. 245 24620130916: 247 With the addition of unbound(8), a new unbound user is now 248 required during installworld. "mergemaster -p" can be used to 249 add the user prior to installworld, as documented in the handbook. 250 25120130911: 252 OpenSSH is now built with DNSSEC support, and will by default 253 silently trust signed SSHFP records. This can be controlled with 254 the VerifyHostKeyDNS client configuration setting. DNSSEC support 255 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 256 25720130906: 258 The GNU Compiler Collection and C++ standard library (libstdc++) 259 are no longer built by default on platforms where clang is the system 260 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 261 options in src.conf. 262 26320130905: 264 The PROCDESC kernel option is now part of the GENERIC kernel 265 configuration and is required for the rwhod(8) to work. 266 If you are using custom kernel configuration, you should include 267 'options PROCDESC'. 268 26920130905: 270 The API and ABI related to the Capsicum framework was modified 271 in backward incompatible way. The userland libraries and programs 272 have to be recompiled to work with the new kernel. This includes the 273 following libraries and programs, but the whole buildworld is 274 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 275 kdump, procstat, rwho, rwhod, uniq. 276 27720130903: 278 AES-NI intrinsic support has been added to gcc. The AES-NI module 279 has been updated to use this support. A new gcc is required to build 280 the aesni module on both i386 and amd64. 281 28220130821: 283 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 284 Thus "device padlock_rng" and "device rdrand_rng" should be 285 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 286 28720130813: 288 WITH_ICONV has been split into two feature sets. WITH_ICONV now 289 enables just the iconv* functionality and is now on by default. 290 WITH_LIBICONV_COMPAT enables the libiconv api and link time 291 compatability. Set WITHOUT_ICONV to build the old way. 292 If you have been using WITH_ICONV before, you will very likely 293 need to turn on WITH_LIBICONV_COMPAT. 294 29520130806: 296 INVARIANTS option now enables DEBUG for code with OpenSolaris and 297 Illumos origin, including ZFS. If you have INVARIANTS in your 298 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 299 explicitly. 300 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 301 locks if WITNESS option was set. Because that generated a lot of 302 witness(9) reports and all of them were believed to be false 303 positives, this is no longer done. New option OPENSOLARIS_WITNESS 304 can be used to achieve the previous behavior. 305 30620130806: 307 Timer values in IPv6 data structures now use time_uptime instead 308 of time_second. Although this is not a user-visible functional 309 change, userland utilities which directly use them---ndp(8), 310 rtadvd(8), and rtsold(8) in the base system---need to be updated 311 to r253970 or later. 312 31320130802: 314 find -delete can now delete the pathnames given as arguments, 315 instead of only files found below them or if the pathname did 316 not contain any slashes. Formerly, the following error message 317 would result: 318 319 find: -delete: <path>: relative path potentially not safe 320 321 Deleting the pathnames given as arguments can be prevented 322 without error messages using -mindepth 1 or by changing 323 directory and passing "." as argument to find. This works in the 324 old as well as the new version of find. 325 32620130726: 327 Behavior of devfs rules path matching has been changed. 328 Pattern is now always matched against fully qualified devfs 329 path and slash characters must be explicitly matched by 330 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 331 subdirectories must be reviewed. 332 33320130716: 334 The default ARM ABI has changed to the ARM EABI. The old ABI is 335 incompatible with the ARM EABI and all programs and modules will 336 need to be rebuilt to work with a new kernel. 337 338 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 339 340 NOTE: Support for the old ABI will be removed in the future and 341 users are advised to upgrade. 342 34320130709: 344 pkg_install has been disconnected from the build if you really need it 345 you should add WITH_PKGTOOLS in your src.conf(5). 346 34720130709: 348 Most of network statistics structures were changed to be able 349 keep 64-bits counters. Thus all tools, that work with networking 350 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 351 35220130629: 353 Fix targets that run multiple make's to use && rather than ; 354 so that subsequent steps depend on success of previous. 355 356 NOTE: if building 'universe' with -j* on stable/8 or stable/9 357 it would be better to start the build using bmake, to avoid 358 overloading the machine. 359 36020130618: 361 Fix a bug that allowed a tracing process (e.g. gdb) to write 362 to a memory-mapped file in the traced process's address space 363 even if neither the traced process nor the tracing process had 364 write access to that file. 365 36620130615: 367 CVS has been removed from the base system. An exact copy 368 of the code is available from the devel/cvs port. 369 37020130613: 371 Some people report the following error after the switch to bmake: 372 373 make: illegal option -- J 374 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 375 ... 376 *** [buildworld] Error code 2 377 378 this likely due to an old instance of make in 379 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 380 which src/Makefile will use that blindly, if it exists, so if 381 you see the above error: 382 383 rm -rf `make -V MAKEPATH` 384 385 should resolve it. 386 38720130516: 388 Use bmake by default. 389 Whereas before one could choose to build with bmake via 390 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 391 make. The goal is to remove these knobs for 10-RELEASE. 392 393 It is worth noting that bmake (like gmake) treats the command 394 line as the unit of failure, rather than statements within the 395 command line. Thus '(cd some/where && dosomething)' is safer 396 than 'cd some/where; dosomething'. The '()' allows consistent 397 behavior in parallel build. 398 39920130429: 400 Fix a bug that allows NFS clients to issue READDIR on files. 401 40220130426: 403 The WITHOUT_IDEA option has been removed because 404 the IDEA patent expired. 405 40620130426: 407 The sysctl which controls TRIM support under ZFS has been renamed 408 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 409 enabled by default. 410 41120130425: 412 The mergemaster command now uses the default MAKEOBJDIRPREFIX 413 rather than creating it's own in the temporary directory in 414 order allow access to bootstrapped versions of tools such as 415 install and mtree. When upgrading from version of FreeBSD where 416 the install command does not support -l, you will need to 417 install a new mergemaster command if mergemaster -p is required. 418 This can be accomplished with the command (cd src/usr.sbin/mergemaster 419 && make install). 420 42120130404: 422 Legacy ATA stack, disabled and replaced by new CAM-based one since 423 FreeBSD 9.0, completely removed from the sources. Kernel modules 424 atadisk and atapi*, user-level tools atacontrol and burncd are 425 removed. Kernel option `options ATA_CAM` is now permanently enabled 426 and removed. 427 42820130319: 429 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 430 and socketpair(2). Software, in particular Kerberos, may 431 automatically detect and use these during building. The resulting 432 binaries will not work on older kernels. 433 43420130308: 435 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 436 information, see the respective 20130304 entry). 437 43820130304: 439 Recent commits to callout(9) changed the size of struct callout, 440 so the KBI is probably heavily disturbed. Also, some functions 441 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 442 by macros. Every kernel module using it won't load, so rebuild 443 is requested. 444 445 The ctl device has been re-enabled in GENERIC for i386 and amd64, 446 but does not initialize by default (because of the new CTL_DISABLE 447 option) to save memory. To re-enable it, remove the CTL_DISABLE 448 option from the kernel config file or set kern.cam.ctl.disable=0 449 in /boot/loader.conf. 450 45120130301: 452 The ctl device has been disabled in GENERIC for i386 and amd64. 453 This was done due to the extra memory being allocated at system 454 initialisation time by the ctl driver which was only used if 455 a CAM target device was created. This makes a FreeBSD system 456 unusable on 128MB or less of RAM. 457 45820130208: 459 A new compression method (lz4) has been merged to -HEAD. Please 460 refer to zpool-features(7) for more information. 461 462 Please refer to the "ZFS notes" section of this file for information 463 on upgrading boot ZFS pools. 464 46520130129: 466 A BSD-licensed patch(1) variant has been added and is installed 467 as bsdpatch, being the GNU version the default patch. 468 To inverse the logic and use the BSD-licensed one as default, 469 while having the GNU version installed as gnupatch, rebuild 470 and install world with the WITH_BSD_PATCH knob set. 471 47220130121: 473 Due to the use of the new -l option to install(1) during build 474 and install, you must take care not to directly set the INSTALL 475 make variable in your /etc/make.conf, /etc/src.conf, or on the 476 command line. If you wish to use the -C flag for all installs 477 you may be able to add INSTALL+=-C to /etc/make.conf or 478 /etc/src.conf. 479 48020130118: 481 The install(1) option -M has changed meaning and now takes an 482 argument that is a file or path to append logs to. In the 483 unlikely event that -M was the last option on the command line 484 and the command line contained at least two files and a target 485 directory the first file will have logs appended to it. The -M 486 option served little practical purpose in the last decade so its 487 use is expected to be extremely rare. 488 48920121223: 490 After switching to Clang as the default compiler some users of ZFS 491 on i386 systems started to experience stack overflow kernel panics. 492 Please consider using 'options KSTACK_PAGES=4' in such configurations. 493 49420121222: 495 GEOM_LABEL now mangles label names read from file system metadata. 496 Mangling affect labels containing spaces, non-printable characters, 497 '%' or '"'. Device names in /etc/fstab and other places may need to 498 be updated. 499 50020121217: 501 By default, only the 10 most recent kernel dumps will be saved. To 502 restore the previous behaviour (no limit on the number of kernel dumps 503 stored in the dump directory) add the following line to /etc/rc.conf: 504 505 savecore_flags="" 506 50720121201: 508 With the addition of auditdistd(8), a new auditdistd user is now 509 required during installworld. "mergemaster -p" can be used to 510 add the user prior to installworld, as documented in the handbook. 511 51220121117: 513 The sin6_scope_id member variable in struct sockaddr_in6 is now 514 filled by the kernel before passing the structure to the userland via 515 sysctl or routing socket. This means the KAME-specific embedded scope 516 id in sin6_addr.s6_addr[2] is always cleared in userland application. 517 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 518 __FreeBSD_version is bumped to 1000025. 519 52020121105: 521 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 522 This means that the world and kernel will be compiled with clang 523 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 524 and /usr/bin/cpp. To disable this behavior and revert to building 525 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 526 of current may need to bootstrap WITHOUT_CLANG first if the clang 527 build fails (its compatibility window doesn't extend to the 9 stable 528 branch point). 529 53020121102: 531 The IPFIREWALL_FORWARD kernel option has been removed. Its 532 functionality now turned on by default. 533 53420121023: 535 The ZERO_COPY_SOCKET kernel option has been removed and 536 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 537 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 538 mechanism which is not safe and may result in kernel crashes. 539 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 540 driver supports disposeable external page sized mbuf storage. 541 Proper replacements for both zero-copy mechanisms are under 542 consideration and will eventually lead to complete removal 543 of the two kernel options. 544 54520121023: 546 The IPv4 network stack has been converted to network byte 547 order. The following modules need to be recompiled together 548 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 549 pf(4), ipfw(4), ng_ipfw(4), stf(4). 550 55120121022: 552 Support for non-MPSAFE filesystems was removed from VFS. The 553 VFS_VERSION was bumped, all filesystem modules shall be 554 recompiled. 555 55620121018: 557 All the non-MPSAFE filesystems have been disconnected from 558 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 559 portalfs, smbfs, xfs. 560 56120121016: 562 The interface cloning API and ABI has changed. The following 563 modules need to be recompiled together with kernel: 564 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 565 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 566 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 567 56820121015: 569 The sdhci driver was split in two parts: sdhci (generic SD Host 570 Controller logic) and sdhci_pci (actual hardware driver). 571 No kernel config modifications are required, but if you 572 load sdhc as a module you must switch to sdhci_pci instead. 573 57420121014: 575 Import the FUSE kernel and userland support into base system. 576 57720121013: 578 The GNU sort(1) program has been removed since the BSD-licensed 579 sort(1) has been the default for quite some time and no serious 580 problems have been reported. The corresponding WITH_GNU_SORT 581 knob has also gone. 582 58320121006: 584 The pfil(9) API/ABI for AF_INET family has been changed. Packet 585 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 586 with new kernel. 587 58820121001: 589 The net80211(4) ABI has been changed to allow for improved driver 590 PS-POLL and power-save support. All wireless drivers need to be 591 recompiled to work with the new kernel. 592 59320120913: 594 The random(4) support for the VIA hardware random number 595 generator (`PADLOCK') is no longer enabled unconditionally. 596 Add the padlock_rng device in the custom kernel config if 597 needed. The GENERIC kernels on i386 and amd64 do include the 598 device, so the change only affects the custom kernel 599 configurations. 600 60120120908: 602 The pf(4) packet filter ABI has been changed. pfctl(8) and 603 snmp_pf module need to be recompiled to work with new kernel. 604 60520120828: 606 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 607 to -HEAD. Pools that have empty_bpobj in active state can not be 608 imported read-write with ZFS implementations that do not support 609 this feature. For more information read the zpool-features(5) 610 manual page. 611 61220120727: 613 The sparc64 ZFS loader has been changed to no longer try to auto- 614 detect ZFS providers based on diskN aliases but now requires these 615 to be explicitly listed in the OFW boot-device environment variable. 616 61720120712: 618 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 619 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 620 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 621 62220120712: 623 The following sysctls and tunables have been renamed for consistency 624 with other variables: 625 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 626 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 627 62820120628: 629 The sort utility has been replaced with BSD sort. For now, GNU sort 630 is also available as "gnusort" or the default can be set back to 631 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 632 installed as "bsdsort". 633 63420120611: 635 A new version of ZFS (pool version 5000) has been merged to -HEAD. 636 Starting with this version the old system of ZFS pool versioning 637 is superseded by "feature flags". This concept enables forward 638 compatibility against certain future changes in functionality of ZFS 639 pools. The first read-only compatible "feature flag" for ZFS pools 640 is named "com.delphix:async_destroy". For more information 641 read the new zpool-features(5) manual page. 642 Please refer to the "ZFS notes" section of this file for information 643 on upgrading boot ZFS pools. 644 64520120417: 646 The malloc(3) implementation embedded in libc now uses sources imported 647 as contrib/jemalloc. The most disruptive API change is to 648 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 649 delete it prior to installworld, and optionally re-create it using the 650 new format after rebooting. See malloc.conf(5) for details 651 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 652 NAMESPACE section). 653 65420120328: 655 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 656 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 657 now spelled mips. This is to aid compatibility with third-party 658 software that expects this naming scheme in uname(3). Little-endian 659 settings are unchanged. If you are updating a big-endian mips64 machine 660 from before this change, you may need to set MACHINE_ARCH=mips64 in 661 your environment before the new build system will recognize your machine. 662 66320120306: 664 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 665 platforms. 666 66720120229: 668 Now unix domain sockets behave "as expected" on nullfs(5). Previously 669 nullfs(5) did not pass through all behaviours to the underlying layer, 670 as a result if we bound to a socket on the lower layer we could connect 671 only to the lower path; if we bound to the upper layer we could connect 672 only to the upper path. The new behavior is one can connect to both the 673 lower and the upper paths regardless what layer path one binds to. 674 67520120211: 676 The getifaddrs upgrade path broken with 20111215 has been restored. 677 If you have upgraded in between 20111215 and 20120209 you need to 678 recompile libc again with your kernel. You still need to recompile 679 world to be able to configure CARP but this restriction already 680 comes from 20111215. 681 68220120114: 683 The set_rcvar() function has been removed from /etc/rc.subr. All 684 base and ports rc.d scripts have been updated, so if you have a 685 port installed with a script in /usr/local/etc/rc.d you can either 686 hand-edit the rcvar= line, or reinstall the port. 687 688 An easy way to handle the mass-update of /etc/rc.d: 689 rm /etc/rc.d/* && mergemaster -i 690 69120120109: 692 panic(9) now stops other CPUs in the SMP systems, disables interrupts 693 on the current CPU and prevents other threads from running. 694 This behavior can be reverted using the kern.stop_scheduler_on_panic 695 tunable/sysctl. 696 The new behavior can be incompatible with kern.sync_on_panic. 697 69820111215: 699 The carp(4) facility has been changed significantly. Configuration 700 of the CARP protocol via ifconfig(8) has changed, as well as format 701 of CARP events submitted to devd(8) has changed. See manual pages 702 for more information. The arpbalance feature of carp(4) is currently 703 not supported anymore. 704 705 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 706 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 707 need to be recompiled. 708 70920111122: 710 The acpi_wmi(4) status device /dev/wmistat has been renamed to 711 /dev/wmistat0. 712 71320111108: 714 The option VFS_ALLOW_NONMPSAFE option has been added in order to 715 explicitely support non-MPSAFE filesystems. 716 It is on by default for all supported platform at this present 717 time. 718 71920111101: 720 The broken amd(4) driver has been replaced with esp(4) in the amd64, 721 i386 and pc98 GENERIC kernel configuration files. 722 72320110930: 724 sysinstall has been removed 725 72620110923: 727 The stable/9 branch created in subversion. This corresponds to the 728 RELENG_9 branch in CVS. 729 73020110913: 731 This commit modifies vfs_register() so that it uses a hash 732 calculation to set vfc_typenum, which is enabled by default. 733 The first time a system is booted after this change, the 734 vfc_typenum values will change for all file systems. The 735 main effect of this is a change to the NFS server file handles 736 for file systems that use vfc_typenum in their fsid, such as ZFS. 737 It will, however, prevent vfc_typenum from changing when file 738 systems are loaded in a different order for subsequent reboots. 739 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 740 until you are ready to remount all NFS clients after a reboot. 741 74220110828: 743 Bump the shared library version numbers for libraries that 744 do not use symbol versioning, have changed the ABI compared 745 to stable/8 and which shared library version was not bumped. 746 Done as part of 9.0-RELEASE cycle. 747 74820110815: 749 During the merge of Capsicum features, the fget(9) KPI was modified. 750 This may require the rebuilding of out-of-tree device drivers -- 751 issues have been reported specifically with the nVidia device driver. 752 __FreeBSD_version is bumped to 900041. 753 754 Also, there is a period between 20110811 and 20110814 where the 755 special devices /dev/{stdin,stdout,stderr} did not work correctly. 756 Building world from a kernel during that window may not work. 757 75820110628: 759 The packet filter (pf) code has been updated to OpenBSD 4.5. 760 You need to update userland tools to be in sync with kernel. 761 This update breaks backward compatibility with earlier pfsync(4) 762 versions. Care must be taken when updating redundant firewall setups. 763 76420110608: 765 The following sysctls and tunables are retired on x86 platforms: 766 machdep.hlt_cpus 767 machdep.hlt_logical_cpus 768 The following sysctl is retired: 769 machdep.hyperthreading_allowed 770 The sysctls were supposed to provide a way to dynamically offline and 771 online selected CPUs on x86 platforms, but the implementation has not 772 been reliable especially with SCHED_ULE scheduler. 773 machdep.hyperthreading_allowed tunable is still available to ignore 774 hyperthreading CPUs at OS level. 775 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 776 where X is an APIC ID of a CPU. Be advised, though, that disabling 777 CPUs in non-uniform fashion will result in non-uniform topology and 778 may lead to sub-optimal system performance with SCHED_ULE, which is 779 a default scheduler. 780 78120110607: 782 cpumask_t type is retired and cpuset_t is used in order to describe 783 a mask of CPUs. 784 78520110531: 786 Changes to ifconfig(8) for dynamic address family detection mandate 787 that you are running a kernel of 20110525 or later. Make sure to 788 follow the update procedure to boot a new kernel before installing 789 world. 790 79120110513: 792 Support for sun4v architecture is officially dropped 793 79420110503: 795 Several KPI breaking changes have been committed to the mii(4) layer, 796 the PHY drivers and consequently some Ethernet drivers using mii(4). 797 This means that miibus.ko and the modules of the affected Ethernet 798 drivers need to be recompiled. 799 800 Note to kernel developers: Given that the OUI bit reversion problem 801 was fixed as part of these changes all mii(4) commits related to OUIs, 802 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 803 handling, no longer can be merged verbatim to stable/8 and previous 804 branches. 805 80620110430: 807 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 808 into their kernel configurations along with 'device pci'. 809 81020110427: 811 The default NFS client is now the new NFS client, so fstype "newnfs" 812 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 813 Although mounts via fstype "nfs" will usually work without userland 814 changes, it is recommended that the mount(8) and mount_nfs(8) 815 commands be rebuilt from sources and that a link to mount_nfs called 816 mount_oldnfs be created. The new client is compiled into the 817 kernel with "options NFSCL" and this is needed for diskless root 818 file systems. The GENERIC kernel configs have been changed to use 819 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 820 To use the regular/old client, you can "mount -t oldnfs ...". For 821 a diskless root file system, you must also include a line like: 822 823 vfs.root.mountfrom="oldnfs:" 824 825 in the boot/loader.conf on the root fs on the NFS server to make 826 a diskless root fs use the old client. 827 82820110424: 829 The GENERIC kernels for all architectures now default to the new 830 CAM-based ATA stack. It means that all legacy ATA drivers were 831 removed and replaced by respective CAM drivers. If you are using 832 ATA device names in /etc/fstab or other places, make sure to update 833 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 834 where 'Y's are the sequential numbers starting from zero for each type 835 in order of detection, unless configured otherwise with tunables, 836 see cam(4)). There will be symbolic links created in /dev/ to map 837 old adX devices to the respective adaY. They should provide basic 838 compatibility for file systems mounting in most cases, but they do 839 not support old user-level APIs and do not have respective providers 840 in GEOM. Consider using updated management tools with new device names. 841 842 It is possible to load devices ahci, ata, siis and mvs as modules, 843 but option ATA_CAM should remain in kernel configuration to make ata 844 module work as CAM driver supporting legacy ATA controllers. Device ata 845 still can be used in modular fashion (atacore + ...). Modules atadisk 846 and atapi* are not used and won't affect operation in ATA_CAM mode. 847 Note that to use CAM-based ATA kernel should include CAM devices 848 scbus, pass, da (or explicitly ada), cd and optionally others. All of 849 them are parts of the cam module. 850 851 ataraid(4) functionality is now supported by the RAID GEOM class. 852 To use it you can load geom_raid kernel module and use graid(8) tool 853 for management. Instead of /dev/arX device names, use /dev/raid/rX. 854 855 No kernel config options or code have been removed, so if a problem 856 arises, please report it and optionally revert to the old ATA stack. 857 In order to do it you can remove from the kernel config: 858 options ATA_CAM 859 device ahci 860 device mvs 861 device siis 862 , and instead add back: 863 device atadisk # ATA disk drives 864 device ataraid # ATA RAID drives 865 device atapicd # ATAPI CDROM drives 866 device atapifd # ATAPI floppy drives 867 device atapist # ATAPI tape drives 868 86920110423: 870 The default NFS server has been changed to the new server, which 871 was referred to as the experimental server. If you need to switch 872 back to the old NFS server, you must now put the "-o" option on 873 both the mountd and nfsd commands. This can be done using the 874 mountd_flags and nfs_server_flags rc.conf variables until an 875 update to the rc scripts is committed, which is coming soon. 876 87720110418: 878 The GNU Objective-C runtime library (libobjc), and other Objective-C 879 related components have been removed from the base system. If you 880 require an Objective-C library, please use one of the available ports. 881 88220110331: 883 ath(4) has been split into bus- and device- modules. if_ath contains 884 the HAL, the TX rate control and the network device code. if_ath_pci 885 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 886 contains the AHB glue. Users need to load both if_ath_pci and if_ath 887 in order to use ath on everything else. 888 889 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 890 need to load if_ath and if_ath_pci for ath(4) operation. 891 89220110314: 893 As part of the replacement of sysinstall, the process of building 894 release media has changed significantly. For details, please re-read 895 release(7), which has been updated to reflect the new build process. 896 89720110218: 898 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 899 is the last available version under GPLv2. It brings a number of new 900 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 901 4.1 and SSE 4.2), better support for powerpc64, a number of new 902 directives, and lots of other small improvements. See the ChangeLog 903 file in contrib/binutils for the full details. 904 90520110218: 906 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 907 compliant, and will now use half of hash for authentication. 908 This will break interoperability with all stacks (including all 909 actual FreeBSD versions) who implement 910 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 911 authentication). 912 The only workaround with such peers is to use another HMAC 913 algorithm for IPsec ("phase 2") authentication. 914 91520110207: 916 Remove the uio_yield prototype and symbol. This function has 917 been misnamed since it was introduced and should not be 918 globally exposed with this name. The equivalent functionality 919 is now available using kern_yield(curthread->td_user_pri). 920 The function remains undocumented. 921 92220110112: 923 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 924 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 925 for scalar sysctls is defined but disabled. Code that needs 926 UQUAD to pass the type checking that must compile on older 927 systems where the define is not present can check against 928 __FreeBSD_version >= 900030. 929 930 The system dialog(1) has been replaced with a new version previously 931 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 932 with the previous version, but the libdialog associated with it has 933 a largely incompatible API. As such, the original version of libdialog 934 will be kept temporarily as libodialog, until its base system consumers 935 are replaced or updated. Bump __FreeBSD_version to 900030. 936 93720110103: 938 If you are trying to run make universe on a -stable system, and you get 939 the following warning: 940 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 941 unknown. config(8) likely too old." 942 or something similar to it, then you must upgrade your -stable system 943 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 944 stable/8) or build the config from the latest stable/8 branch and 945 install it on your system. 946 947 Prior to this date, building a current universe on 8-stable system from 948 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 949 error in the first kernel build phase. A new config on those old 950 systems will fix that problem for older versions of -current. 951 95220101228: 953 The TCP stack has been modified to allow Khelp modules to interact with 954 it via helper hook points and store per-connection data in the TCP 955 control block. Bump __FreeBSD_version to 900029. User space tools that 956 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 957 be recompiled. 958 95920101114: 960 Generic IEEE 802.3 annex 31B full duplex flow control support has been 961 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 962 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 963 to take advantage of it instead of using custom implementations. This 964 means that these drivers now no longer unconditionally advertise 965 support for flow control but only do so if flow control is a selected 966 media option. This was implemented in the generic support that way in 967 order to allow flow control to be switched on and off via ifconfig(8) 968 with the PHY specific default to typically off in order to protect 969 from unwanted effects. Consequently, if you used flow control with 970 one of the above mentioned drivers you now need to explicitly enable 971 it, for example via: 972 ifconfig bge0 media auto mediaopt flowcontrol 973 974 Along with the above mentioned changes generic support for setting 975 1000baseT master mode also has been added and brgphy(4), ciphy(4), 976 e1000phy(4) as well as ip1000phy(4) have been converted to take 977 advantage of it. This means that these drivers now no longer take the 978 link0 parameter for selecting master mode but the master media option 979 has to be used instead, for example like in the following: 980 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 981 982 Selection of master mode now is also available with all other PHY 983 drivers supporting 1000baseT. 984 98520101111: 986 The TCP stack has received a significant update to add support for 987 modularised congestion control and generally improve the clarity of 988 congestion control decisions. Bump __FreeBSD_version to 900025. User 989 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 990 sockstat) need to be recompiled. 991 99220101002: 993 The man(1) utility has been replaced by a new version that no longer 994 uses /etc/manpath.config. Please consult man.conf(5) for how to 995 migrate local entries to the new format. 996 99720100928: 998 The copyright strings printed by login(1) and sshd(8) at the time of a 999 new connection have been removed to follow other operating systems and 1000 upstream sshd. 1001 100220100915: 1003 A workaround for a fixed ld bug has been removed in kernel code, 1004 so make sure that your system ld is built from sources after 1005 revision 210245 from 2010-07-19 (r211583 if building head kernel 1006 on stable/8, r211584 for stable/7; both from 2010-08-21). 1007 A symptom of incorrect ld version is different addresses for 1008 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1009 101020100913: 1011 The $ipv6_prefer variable in rc.conf(5) has been split into 1012 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1013 1014 The $ip6addrctl_policy is a variable to choose a pre-defined 1015 address selection policy set by ip6addrctl(8). A value 1016 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1017 default is "AUTO". 1018 1019 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1020 flag (see an entry of 20090926) is set on an interface with no 1021 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1022 security reason. If you want IPv6 link-local address on all 1023 interfaces by default, set this to "YES". 1024 1025 The old ipv6_prefer="YES" is equivalent to 1026 ipv6_activate_all_interfaces="YES" and 1027 ip6addrctl_policy="ipv6_prefer". 1028 102920100913: 1030 DTrace has grown support for userland tracing. Due to this, DTrace is 1031 now i386 and amd64 only. 1032 dtruss(1) is now installed by default on those systems and a new 1033 kernel module is needed for userland tracing: fasttrap. 1034 No changes to your kernel config file are necessary to enable 1035 userland tracing, but you might consider adding 'STRIP=' and 1036 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1037 to have informative userland stack traces in DTrace (ustack). 1038 103920100725: 1040 The acpi_aiboost(4) driver has been removed in favor of the new 1041 aibs(4) driver. You should update your kernel configuration file. 1042 104320100722: 1044 BSD grep has been imported to the base system and it is built by 1045 default. It is completely BSD licensed, highly GNU-compatible, uses 1046 less memory than its GNU counterpart and has a small codebase. 1047 However, it is slower than its GNU counterpart, which is mostly 1048 noticeable for larger searches, for smaller ones it is measurable 1049 but not significant. The reason is complex, the most important factor 1050 is that we lack a modern and efficient regex library and GNU 1051 overcomes this by optimizing the searches internally. Future work 1052 on improving the regex performance is planned, for the meantime, 1053 users that need better performance, can build GNU grep instead by 1054 setting the WITH_GNU_GREP knob. 1055 105620100713: 1057 Due to the import of powerpc64 support, all existing powerpc kernel 1058 configuration files must be updated with a machine directive like this: 1059 machine powerpc powerpc 1060 1061 In addition, an updated config(8) is required to build powerpc kernels 1062 after this change. 1063 106420100713: 1065 A new version of ZFS (version 15) has been merged to -HEAD. 1066 This version uses a python library for the following subcommands: 1067 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1068 For full functionality of these commands the following port must 1069 be installed: sysutils/py-zfs 1070 107120100429: 1072 'vm_page's are now hashed by physical address to an array of mutexes. 1073 Currently this is only used to serialize access to hold_count. Over 1074 time the page queue mutex will be peeled away. This changes the size 1075 of pmap on every architecture. And requires all callers of vm_page_hold 1076 and vm_page_unhold to be updated. 1077 107820100402: 1079 WITH_CTF can now be specified in src.conf (not recommended, there 1080 are some problems with static executables), make.conf (would also 1081 affect ports which do not use GNU make and do not override the 1082 compile targets) or in the kernel config (via "makeoptions 1083 WITH_CTF=yes"). 1084 When WITH_CTF was specified there before this was silently ignored, 1085 so make sure that WITH_CTF is not used in places which could lead 1086 to unwanted behavior. 1087 108820100311: 1089 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1090 to allow 32-bit compatibility on non-x86 platforms. All kernel 1091 configurations on amd64 and ia64 platforms using these options must 1092 be modified accordingly. 1093 109420100113: 1095 The utmp user accounting database has been replaced with utmpx, 1096 the user accounting interface standardized by POSIX. 1097 Unfortunately the semantics of utmp and utmpx don't match, 1098 making it practically impossible to support both interfaces. 1099 The user accounting database is used by tools like finger(1), 1100 last(1), talk(1), w(1) and ac(8). 1101 1102 All applications in the base system use utmpx. This means only 1103 local binaries (e.g. from the ports tree) may still use these 1104 utmp database files. These applications must be rebuilt to make 1105 use of utmpx. 1106 1107 After the system has been upgraded, it is safe to remove the old 1108 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1109 assuming their contents is of no importance anymore. Old wtmp 1110 databases can only be used by last(1) and ac(8) after they have 1111 been converted to the new format using wtmpcvt(1). 1112 111320100108: 1114 Introduce the kernel thread "deadlock resolver" (which can be enabled 1115 via the DEADLKRES option, see NOTES for more details) and the 1116 sleepq_type() function for sleepqueues. 1117 111820091202: 1119 The rc.firewall and rc.firewall6 were unified, and 1120 rc.firewall6 and rc.d/ip6fw were removed. 1121 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1122 variables are obsoleted. Instead, the following new rc 1123 variables are added to rc.d/ipfw: 1124 1125 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1126 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1127 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1128 1129 The meanings correspond to the relevant IPv4 variables. 1130 113120091125: 1132 8.0-RELEASE. 1133 113420091113: 1135 The default terminal emulation for syscons(4) has been changed 1136 from cons25 to xterm on all platforms except pc98. This means 1137 that the /etc/ttys file needs to be updated to ensure correct 1138 operation of applications on the console. 1139 1140 The terminal emulation style can be toggled per window by using 1141 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1142 options can be used to change the compile-time default back to 1143 cons25. 1144 1145 To prevent graphical artifacts, make sure the TERM environment 1146 variable is set to match the terminal emulation that is being 1147 performed by syscons(4). 1148 114920091109: 1150 The layout of the structure ieee80211req_scan_result has changed. 1151 Applications that require wireless scan results (e.g. ifconfig(8)) 1152 from net80211 need to be recompiled. 1153 1154 Applications such as wpa_supplicant(8) may require a full world 1155 build without using NO_CLEAN in order to get synchronized with the 1156 new structure. 1157 115820091025: 1159 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1160 There's one kernel module for each firmware. Adding "device iwnfw" 1161 to the kernel configuration file means including all three firmware 1162 images inside the kernel. If you want to include just the one for 1163 your wireless card, use the devices iwn4965fw, iwn5000fw or 1164 iwn5150fw. 1165 116620090926: 1167 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1168 into rc.d/netif. The changes are the following: 1169 1170 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1171 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1172 Note that both variables need the "inet6" keyword at the head. 1173 1174 Do not set $ipv6_network_interfaces manually if you do not 1175 understand what you are doing. It is not needed in most cases. 1176 1177 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1178 they are obsolete. 1179 1180 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1181 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1182 1183 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1184 all configured interfaces have "inet6 accept_rtadv" in the 1185 $ifconfig_IF_ipv6. These are for backward compatibility. 1186 1187 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1188 functionality of interfaces with no corresponding 1189 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1190 and the default address selection policy of ip6addrctl(8) 1191 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1192 Note that if you want to configure IPv6 functionality on the 1193 disabled interfaces after boot, first you need to clear the flag by 1194 using ifconfig(8) like: 1195 1196 ifconfig em0 inet6 -ifdisabled 1197 1198 If YES, the default address selection policy is set as 1199 IPv6-preferred. 1200 1201 The default value of $ipv6_prefer is NO. 1202 1203 4. If your system need to receive Router Advertisement messages, 1204 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1205 scripts automatically invoke rtsol(8) when the interface becomes 1206 UP. The Router Advertisement messages are used for SLAAC 1207 (State-Less Address AutoConfiguration). 1208 120920090922: 1210 802.11s D3.03 support was committed. This is incompatible with the 1211 previous code, which was based on D3.0. 1212 121320090912: 1214 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1215 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1216 control whether accepting Router Advertisement messages or not. 1217 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1218 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1219 The ifconfig(8) utility now supports these flags. 1220 122120090910: 1222 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1223 mount(8) and -a option for df(1) to see them. 1224 122520090825: 1226 The old tunable hw.bus.devctl_disable has been superseded by 1227 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1228 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1229 is 1000. 1230 123120090813: 1232 Remove the option STOP_NMI. The default action is now to use NMI only 1233 for KDB via the newly introduced function stop_cpus_hard() and 1234 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1235 123620090803: 1237 The stable/8 branch created in subversion. This corresponds to the 1238 RELENG_8 branch in CVS. 1239 124020090719: 1241 Bump the shared library version numbers for all libraries that do not 1242 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1243 __FreeBSD_version to 800105. 1244 124520090714: 1246 Due to changes in the implementation of virtual network stack support, 1247 all network-related kernel modules must be recompiled. As this change 1248 breaks the ABI, bump __FreeBSD_version to 800104. 1249 125020090713: 1251 The TOE interface to the TCP syncache has been modified to remove 1252 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1253 The cxgb driver is the only TOE consumer affected by this change, and 1254 needs to be recompiled along with the kernel. As this change breaks 1255 the ABI, bump __FreeBSD_version to 800103. 1256 125720090712: 1258 Padding has been added to struct tcpcb, sackhint and tcpstat in 1259 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1260 maintaining the ABI. However, this change breaks the ABI, so bump 1261 __FreeBSD_version to 800102. User space tools that rely on the size of 1262 any of these structs (e.g. sockstat) need to be recompiled. 1263 126420090630: 1265 The NFS_LEGACYRPC option has been removed along with the old kernel 1266 RPC implementation that this option selected. Kernel configurations 1267 may need to be adjusted. 1268 126920090629: 1270 The network interface device nodes at /dev/net/<interface> have been 1271 removed. All ioctl operations can be performed the normal way using 1272 routing sockets. The kqueue functionality can generally be replaced 1273 with routing sockets. 1274 127520090628: 1276 The documentation from the FreeBSD Documentation Project (Handbook, 1277 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1278 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1279 128020090624: 1281 The ABI of various structures related to the SYSV IPC API have been 1282 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1283 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1284 800100. 1285 128620090622: 1287 Layout of struct vnet has changed as routing related variables were 1288 moved to their own Vimage module. Modules need to be recompiled. Bump 1289 __FreeBSD_version to 800099. 1290 129120090619: 1292 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1293 respectively. As long as no more than 16 groups per process are used, 1294 no changes should be visible. When more than 16 groups are used, old 1295 binaries may fail if they call getgroups() or getgrouplist() with 1296 statically sized storage. Recompiling will work around this, but 1297 applications should be modified to use dynamically allocated storage 1298 for group arrays as POSIX.1-2008 does not cap an implementation's 1299 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1300 1301 NFS and portalfs mounts may also be affected as the list of groups is 1302 truncated to 16. Users of NFS who use more than 16 groups, should 1303 take care that negative group permissions are not used on the exported 1304 file systems as they will not be reliable unless a GSSAPI based 1305 authentication method is used. 1306 130720090616: 1308 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1309 option compiles in the support for adaptive spinning for lockmgrs 1310 which want to enable it. The lockinit() function now accepts the flag 1311 LK_ADAPTIVE in order to make the lock object subject to adaptive 1312 spinning when both held in write and read mode. 1313 131420090613: 1315 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1316 changed. User applications that use this ioctl need to be rebuilt. 1317 131820090611: 1319 The layout of struct thread has changed. Kernel and modules need to 1320 be rebuilt. 1321 132220090608: 1323 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1324 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1325 132620090602: 1327 window(1) has been removed from the base system. It can now be 1328 installed from ports. The port is called misc/window. 1329 133020090601: 1331 The way we are storing and accessing `routing table' entries has 1332 changed. Programs reading the FIB, like netstat, need to be 1333 re-compiled. 1334 133520090601: 1336 A new netisr implementation has been added for FreeBSD 8. Network 1337 file system modules, such as igmp, ipdivert, and others, should be 1338 rebuilt. 1339 Bump __FreeBSD_version to 800096. 1340 134120090530: 1342 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1343 more valid. 1344 134520090530: 1346 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1347 Bump __FreeBSD_version to 800094. 1348 134920090529: 1350 Add mnt_xflag field to 'struct mount'. File system modules need to be 1351 rebuilt. 1352 Bump __FreeBSD_version to 800093. 1353 135420090528: 1355 The compiling option ADAPTIVE_SX has been retired while it has been 1356 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1357 The KPI for sx_init_flags() changes as accepting flags: 1358 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1359 been introduced in order to handle the reversed logic. 1360 Bump __FreeBSD_version to 800092. 1361 136220090527: 1363 Add support for hierarchical jails. Remove global securelevel. 1364 Bump __FreeBSD_version to 800091. 1365 136620090523: 1367 The layout of struct vnet_net has changed, therefore modules 1368 need to be rebuilt. 1369 Bump __FreeBSD_version to 800090. 1370 137120090523: 1372 The newly imported zic(8) produces a new format in the output. Please 1373 run tzsetup(8) to install the newly created data to /etc/localtime. 1374 137520090520: 1376 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1377 hw.usb.* and is now consistent again with previous releases. 1378 137920090520: 1380 802.11 monitor mode support was revised and driver api's were changed. 1381 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1382 of DLT_IEEE802_11. No user-visible data structures were changed but 1383 applications that use DLT_IEEE802_11 may require changes. 1384 Bump __FreeBSD_version to 800088. 1385 138620090430: 1387 The layout of the following structs has changed: sysctl_oid, 1388 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1389 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1390 panics may be experienced. World rebuild is required for 1391 correctly checking networking state from userland. 1392 Bump __FreeBSD_version to 800085. 1393 139420090429: 1395 MLDv2 and Source-Specific Multicast (SSM) have been merged 1396 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1397 The implementation of SSM within FreeBSD's IPv6 stack closely 1398 follows the IPv4 implementation. 1399 1400 For kernel developers: 1401 1402 * The most important changes are that the ip6_output() and 1403 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1404 and this lock has been downgraded to a non-recursive mutex. 1405 1406 * As with the changes to the IPv4 stack to support SSM, filtering 1407 of inbound multicast traffic must now be performed by transport 1408 protocols within the IPv6 stack. This does not apply to TCP and 1409 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1410 1411 * The KPIs used by IPv6 multicast are similar to those used by 1412 the IPv4 stack, with the following differences: 1413 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1414 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1415 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1416 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1417 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1418 for MLDv1 have an additional 'timer' argument which is used to 1419 jitter the initial membership report for the solicited-node 1420 multicast membership on-link. 1421 * This is not strictly needed for MLDv2, which already jitters 1422 its report transmissions. However, the 'timer' argument is 1423 preserved in case MLDv1 is active on the interface. 1424 1425 * The KAME linked-list based IPv6 membership implementation has 1426 been refactored to use a vector similar to that used by the IPv4 1427 stack. 1428 Code which maintains a list of its own multicast memberships 1429 internally, e.g. carp, has been updated to reflect the new 1430 semantics. 1431 1432 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1433 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1434 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1435 implementation constraint which needs to be addressed in HEAD. 1436 1437 For application developers: 1438 1439 * The changes are broadly similar to those made for the IPv4 1440 stack. 1441 1442 * The use of IPv4 and IPv6 multicast socket options on the same 1443 socket, using mapped addresses, HAS NOT been tested or supported. 1444 1445 * There are a number of issues with the implementation of various 1446 IPv6 multicast APIs which need to be resolved in the API surface 1447 before the implementation is fully compatible with KAME userland 1448 use, and these are mostly to do with interface index treatment. 1449 1450 * The literature available discusses the use of either the delta / ASM 1451 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1452 using setsourcefilter(3)/getsourcefilter(3). For more information 1453 please refer to RFC 3768, 'Socket Interface Extensions for 1454 Multicast Source Filters'. 1455 1456 * Applications which use the published RFC 3678 APIs should be fine. 1457 1458 For systems administrators: 1459 1460 * The mtest(8) utility has been refactored to support IPv6, in 1461 addition to IPv4. Interface addresses are no longer accepted 1462 as arguments, their names must be used instead. The utility 1463 will map the interface name to its first IPv4 address as 1464 returned by getifaddrs(3). 1465 1466 * The ifmcstat(8) utility has also been updated to print the MLDv2 1467 endpoint state and source filter lists via sysctl(3). 1468 1469 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1470 loopback of IPv6 multicast datagrams by default; it defaults to 1 1471 to preserve the existing behaviour. Disabling multicast loopback is 1472 recommended for optimal system performance. 1473 1474 * The IPv6 MROUTING code has been changed to examine this sysctl 1475 instead of attempting to perform a group lookup before looping 1476 back forwarded datagrams. 1477 1478 Bump __FreeBSD_version to 800084. 1479 148020090422: 1481 Implement low-level Bluetooth HCI API. 1482 Bump __FreeBSD_version to 800083. 1483 148420090419: 1485 The layout of struct malloc_type, used by modules to register new 1486 memory allocation types, has changed. Most modules will need to 1487 be rebuilt or panics may be experienced. 1488 Bump __FreeBSD_version to 800081. 1489 149020090415: 1491 Anticipate overflowing inp_flags - add inp_flags2. 1492 This changes most offsets in inpcb, so checking v4 connection 1493 state will require a world rebuild. 1494 Bump __FreeBSD_version to 800080. 1495 149620090415: 1497 Add an llentry to struct route and struct route_in6. Modules 1498 embedding a struct route will need to be recompiled. 1499 Bump __FreeBSD_version to 800079. 1500 150120090414: 1502 The size of rt_metrics_lite and by extension rtentry has changed. 1503 Networking administration apps will need to be recompiled. 1504 The route command now supports show as an alias for get, weighting 1505 of routes, sticky and nostick flags to alter the behavior of stateful 1506 load balancing. 1507 Bump __FreeBSD_version to 800078. 1508 150920090408: 1510 Do not use Giant for kbdmux(4) locking. This is wrong and 1511 apparently causing more problems than it solves. This will 1512 re-open the issue where interrupt handlers may race with 1513 kbdmux(4) in polling mode. Typical symptoms include (but 1514 not limited to) duplicated and/or missing characters when 1515 low level console functions (such as gets) are used while 1516 interrupts are enabled (for example geli password prompt, 1517 mountroot prompt etc.). Disabling kbdmux(4) may help. 1518 151920090407: 1520 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1521 kernel modules referencing any of the above need to be recompiled. 1522 Bump __FreeBSD_version to 800075. 1523 152420090320: 1525 GEOM_PART has become the default partition slicer for storage devices, 1526 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1527 introduces some changes: 1528 1529 MSDOS/EBR: the devices created from MSDOS extended partition entries 1530 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1531 to devices with offset-based names. fstabs may need to be modified. 1532 1533 BSD: the "geometry does not match label" warning is harmless in most 1534 cases but it points to problems in file system misalignment with 1535 disk geometry. The "c" partition is now implicit, covers the whole 1536 top-level drive and cannot be (mis)used by users. 1537 1538 General: Kernel dumps are now not allowed to be written to devices 1539 whose partition types indicate they are meant to be used for file 1540 systems (or, in case of MSDOS partitions, as something else than 1541 the "386BSD" type). 1542 1543 Most of these changes date approximately from 200812. 1544 154520090319: 1546 The uscanner(4) driver has been removed from the kernel. This follows 1547 Linux removing theirs in 2.6 and making libusb the default interface 1548 (supported by sane). 1549 155020090319: 1551 The multicast forwarding code has been cleaned up. netstat(1) 1552 only relies on KVM now for printing bandwidth upcall meters. 1553 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1554 ip6_mroute_mod respectively. The config(5) options for statically 1555 compiling this code remain the same, i.e. 'options MROUTING'. 1556 155720090315: 1558 Support for the IFF_NEEDSGIANT network interface flag has been 1559 removed, which means that non-MPSAFE network device drivers are no 1560 longer supported. In particular, if_ar, if_sr, and network device 1561 drivers from the old (legacy) USB stack can no longer be built or 1562 used. 1563 156420090313: 1565 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1566 a bunch of new language catalog files have also been added. 1567 This means that some common libc messages are now localized and 1568 they depend on the LC_MESSAGES environmental variable. 1569 157020090313: 1571 The k8temp(4) driver has been renamed to amdtemp(4) since 1572 support for Family 10 and Family 11 CPU families was added. 1573 157420090309: 1575 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1576 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1577 1578 For kernel developers, the most important changes are that the 1579 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1580 and this lock has been downgraded to a non-recursive mutex. 1581 1582 Transport protocols (UDP, Raw IP) are now responsible for filtering 1583 inbound multicast traffic according to group membership and source 1584 filters. The imo_multicast_filter() KPI exists for this purpose. 1585 Transports which do not use multicast (SCTP, TCP) already reject 1586 multicast by default. Forwarding and receive performance may improve 1587 as a mutex acquisition is no longer needed in the ip_input() 1588 low-level input path. in_addmulti() and in_delmulti() are shimmed 1589 to new KPIs which exist to support SSM in-kernel. 1590 1591 For application developers, it is recommended that loopback of 1592 multicast datagrams be disabled for best performance, as this 1593 will still cause the lock to be taken for each looped-back 1594 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1595 be tuned to 0 to disable loopback by default; it defaults to 1 1596 to preserve the existing behaviour. 1597 1598 For systems administrators, to obtain best performance with 1599 multicast reception and multiple groups, it is always recommended 1600 that a card with a suitably precise hash filter is used. Hash 1601 collisions will still result in the lock being taken within the 1602 transport protocol input path to check group membership. 1603 1604 If deploying FreeBSD in an environment with IGMP snooping switches, 1605 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1606 enabled; this forces 224.0.0.0/24 group membership to be announced 1607 via IGMP. 1608 1609 The size of 'struct igmpstat' has changed; netstat needs to be 1610 recompiled to reflect this. 1611 Bump __FreeBSD_version to 800070. 1612 161320090309: 1614 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1615 updated to use it. This requires a buildworld/installworld in order to 1616 update the library and dependencies (usbconfig, etc). Its advisable to 1617 rebuild all ports which uses libusb. More specific directions are given 1618 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1619 libusb are no longer required and can be removed. 1620 162120090302: 1622 A workaround is committed to allow the creation of System V shared 1623 memory segment of size > 2 GB on the 64-bit architectures. 1624 Due to a limitation of the existing ABI, the shm_segsz member 1625 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1626 wrong for large segments. Note that limits must be explicitly 1627 raised to allow such segments to be created. 1628 162920090301: 1630 The layout of struct ifnet has changed, requiring a rebuild of all 1631 network device driver modules. 1632 163320090227: 1634 The /dev handling for the new USB stack has changed, a 1635 buildworld/installworld is required for libusb20. 1636 163720090223: 1638 The new USB2 stack has now been permanently moved in and all kernel and 1639 module names reverted to their previous values (eg, usb, ehci, ohci, 1640 ums, ...). The old usb stack can be compiled in by prefixing the name 1641 with the letter 'o', the old usb modules have been removed. 1642 Updating entry 20090216 for xorg and 20090215 for libmap may still 1643 apply. 1644 164520090217: 1646 The rc.conf(5) option if_up_delay has been renamed to 1647 defaultroute_delay to better reflect its purpose. If you have 1648 customized this setting in /etc/rc.conf you need to update it to 1649 use the new name. 1650 165120090216: 1652 xorg 7.4 wants to configure its input devices via hald which does not 1653 yet work with USB2. If the keyboard/mouse does not work in xorg then 1654 add 1655 Option "AllowEmptyInput" "off" 1656 to your ServerLayout section. This will cause X to use the configured 1657 kbd and mouse sections from your xorg.conf. 1658 165920090215: 1660 The GENERIC kernels for all architectures now default to the new USB2 1661 stack. No kernel config options or code have been removed so if a 1662 problem arises please report it and optionally revert to the old USB 1663 stack. If you are loading USB kernel modules or have a custom kernel 1664 that includes GENERIC then ensure that usb names are also changed over, 1665 eg uftdi -> usb2_serial_ftdi. 1666 1667 Older programs linked against the ports libusb 0.1 need to be 1668 redirected to the new stack's libusb20. /etc/libmap.conf can 1669 be used for this: 1670 # Map old usb library to new one for usb2 stack 1671 libusb-0.1.so.8 libusb20.so.1 1672 167320090209: 1674 All USB ethernet devices now attach as interfaces under the name ueN 1675 (eg. ue0). This is to provide a predictable name as vendors often 1676 change usb chipsets in a product without notice. 1677 167820090203: 1679 The ichsmb(4) driver has been changed to require SMBus slave 1680 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1681 All of the other SMBus controller drivers require left-justified 1682 slave addresses, so this change makes all the drivers provide the 1683 same interface. 1684 168520090201: 1686 INET6 statistics (struct ip6stat) was updated. 1687 netstat(1) needs to be recompiled. 1688 168920090119: 1690 NTFS has been removed from GENERIC kernel on amd64 to match 1691 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1692 will load ntfs.ko module automatically when NTFS support is 1693 actually needed, unless ntfs.ko is not installed or security 1694 level prohibits loading kernel modules. If either is the case, 1695 "options NTFS" has to be added into kernel config. 1696 169720090115: 1698 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1699 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1700 800061. User space tools that rely on the size of struct tcpcb in 1701 tcp_var.h (e.g. sockstat) need to be recompiled. 1702 170320081225: 1704 ng_tty(4) module updated to match the new TTY subsystem. 1705 Due to API change, user-level applications must be updated. 1706 New API support added to mpd5 CVS and expected to be present 1707 in next mpd5.3 release. 1708 170920081219: 1710 With __FreeBSD_version 800060 the makefs tool is part of 1711 the base system (it was a port). 1712 171320081216: 1714 The afdata and ifnet locks have been changed from mutexes to 1715 rwlocks, network modules will need to be re-compiled. 1716 171720081214: 1718 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1719 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1720 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1721 architecture and 40 bytes on 64-bit architecture. The userland 1722 applications "arp" and "ndp" have been updated accordingly. 1723 The output from "netstat -r" shows only routing entries and 1724 none of the L2 information. 1725 172620081130: 1727 __FreeBSD_version 800057 marks the switchover from the 1728 binary ath hal to source code. Users must add the line: 1729 1730 options AH_SUPPORT_AR5416 1731 1732 to their kernel config files when specifying: 1733 1734 device ath_hal 1735 1736 The ath_hal module no longer exists; the code is now compiled 1737 together with the driver in the ath module. It is now 1738 possible to tailor chip support (i.e. reduce the set of chips 1739 and thereby the code size); consult ath_hal(4) for details. 1740 174120081121: 1742 __FreeBSD_version 800054 adds memory barriers to 1743 <machine/atomic.h>, new interfaces to ifnet to facilitate 1744 multiple hardware transmit queues for cards that support 1745 them, and a lock-less ring-buffer implementation to 1746 enable drivers to more efficiently manage queueing of 1747 packets. 1748 174920081117: 1750 A new version of ZFS (version 13) has been merged to -HEAD. 1751 This version has zpool attribute "listsnapshots" off by 1752 default, which means "zfs list" does not show snapshots, 1753 and is the same as Solaris behavior. 1754 175520081028: 1756 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1757 175820081009: 1759 The uhci, ohci, ehci and slhci USB Host controller drivers have 1760 been put into separate modules. If you load the usb module 1761 separately through loader.conf you will need to load the 1762 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1763 controller add the following to loader.conf: 1764 1765 uhci_load="YES" 1766 ehci_load="YES" 1767 176820081009: 1769 The ABI used by the PMC toolset has changed. Please keep 1770 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1771 sync. 1772 177320081009: 1774 atapci kernel module now includes only generic PCI ATA 1775 driver. AHCI driver moved to ataahci kernel module. 1776 All vendor-specific code moved into separate kernel modules: 1777 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1778 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1779 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1780 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1781 178220080820: 1783 The TTY subsystem of the kernel has been replaced by a new 1784 implementation, which provides better scalability and an 1785 improved driver model. Most common drivers have been migrated to 1786 the new TTY subsystem, while others have not. The following 1787 drivers have not yet been ported to the new TTY layer: 1788 1789 PCI/ISA: 1790 cy, digi, rc, rp, sio 1791 1792 USB: 1793 ubser, ucycom 1794 1795 Line disciplines: 1796 ng_h4, ng_tty, ppp, sl, snp 1797 1798 Adding these drivers to your kernel configuration file shall 1799 cause compilation to fail. 1800 180120080818: 1802 ntpd has been upgraded to 4.2.4p5. 1803 180420080801: 1805 OpenSSH has been upgraded to 5.1p1. 1806 1807 For many years, FreeBSD's version of OpenSSH preferred DSA 1808 over RSA for host and user authentication keys. With this 1809 upgrade, we've switched to the vendor's default of RSA over 1810 DSA. This may cause upgraded clients to warn about unknown 1811 host keys even for previously known hosts. Users should 1812 follow the usual procedure for verifying host keys before 1813 accepting the RSA key. 1814 1815 This can be circumvented by setting the "HostKeyAlgorithms" 1816 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1817 command line. 1818 1819 Please note that the sequence of keys offered for 1820 authentication has been changed as well. You may want to 1821 specify IdentityFile in a different order to revert this 1822 behavior. 1823 182420080713: 1825 The sio(4) driver has been removed from the i386 and amd64 1826 kernel configuration files. This means uart(4) is now the 1827 default serial port driver on those platforms as well. 1828 1829 To prevent collisions with the sio(4) driver, the uart(4) driver 1830 uses different names for its device nodes. This means the 1831 onboard serial port will now most likely be called "ttyu0" 1832 instead of "ttyd0". You may need to reconfigure applications to 1833 use the new device names. 1834 1835 When using the serial port as a boot console, be sure to update 1836 /boot/device.hints and /etc/ttys before booting the new kernel. 1837 If you forget to do so, you can still manually specify the hints 1838 at the loader prompt: 1839 1840 set hint.uart.0.at="isa" 1841 set hint.uart.0.port="0x3F8" 1842 set hint.uart.0.flags="0x10" 1843 set hint.uart.0.irq="4" 1844 boot -s 1845 184620080609: 1847 The gpt(8) utility has been removed. Use gpart(8) to partition 1848 disks instead. 1849 185020080603: 1851 The version that Linuxulator emulates was changed from 2.4.2 1852 to 2.6.16. If you experience any problems with Linux binaries 1853 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1854 if it fixes the problem contact emulation mailing list. 1855 185620080525: 1857 ISDN4BSD (I4B) was removed from the src tree. You may need to 1858 update a your kernel configuration and remove relevant entries. 1859 186020080509: 1861 I have checked in code to support multiple routing tables. 1862 See the man pages setfib(1) and setfib(2). 1863 This is a hopefully backwards compatible version, 1864 but to make use of it you need to compile your kernel 1865 with options ROUTETABLES=2 (or more up to 16). 1866 186720080420: 1868 The 802.11 wireless support was redone to enable multi-bss 1869 operation on devices that are capable. The underlying device 1870 is no longer used directly but instead wlanX devices are 1871 cloned with ifconfig. This requires changes to rc.conf files. 1872 For example, change: 1873 ifconfig_ath0="WPA DHCP" 1874 to 1875 wlans_ath0=wlan0 1876 ifconfig_wlan0="WPA DHCP" 1877 see rc.conf(5) for more details. In addition, mergemaster of 1878 /etc/rc.d is highly recommended. Simultaneous update of userland 1879 and kernel wouldn't hurt either. 1880 1881 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1882 modules were merged into the base wlan module. All references 1883 to these modules (e.g. in kernel config files) must be removed. 1884 188520080408: 1886 psm(4) has gained write(2) support in native operation level. 1887 Arbitrary commands can be written to /dev/psm%d and status can 1888 be read back from it. Therefore, an application is responsible 1889 for status validation and error recovery. It is a no-op in 1890 other operation levels. 1891 189220080312: 1893 Support for KSE threading has been removed from the kernel. To 1894 run legacy applications linked against KSE libmap.conf may 1895 be used. The following libmap.conf may be used to ensure 1896 compatibility with any prior release: 1897 1898 libpthread.so.1 libthr.so.1 1899 libpthread.so.2 libthr.so.2 1900 libkse.so.3 libthr.so.3 1901 190220080301: 1903 The layout of struct vmspace has changed. This affects libkvm 1904 and any executables that link against libkvm and use the 1905 kvm_getprocs() function. In particular, but not exclusively, 1906 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1907 The effects are minimal, but it's advisable to upgrade world 1908 nonetheless. 1909 191020080229: 1911 The latest em driver no longer has support in it for the 1912 82575 adapter, this is now moved to the igb driver. The 1913 split was done to make new features that are incompatible 1914 with older hardware easier to do. 1915 191620080220: 1917 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1918 likewise the kernel option is now GEOM_LINUX_LVM. 1919 192020080211: 1921 The default NFS mount mode has changed from UDP to TCP for 1922 increased reliability. If you rely on (insecurely) NFS 1923 mounting across a firewall you may need to update your 1924 firewall rules. 1925 192620080208: 1927 Belatedly note the addition of m_collapse for compacting 1928 mbuf chains. 1929 193020080126: 1931 The fts(3) structures have been changed to use adequate 1932 integer types for their members and so to be able to cope 1933 with huge file trees. The old fts(3) ABI is preserved 1934 through symbol versioning in libc, so third-party binaries 1935 using fts(3) should still work, although they will not take 1936 advantage of the extended types. At the same time, some 1937 third-party software might fail to build after this change 1938 due to unportable assumptions made in its source code about 1939 fts(3) structure members. Such software should be fixed 1940 by its vendor or, in the worst case, in the ports tree. 1941 FreeBSD_version 800015 marks this change for the unlikely 1942 case that a portable fix is impossible. 1943 194420080123: 1945 To upgrade to -current after this date, you must be running 1946 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1947 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1948 194920071128: 1950 The ADAPTIVE_GIANT kernel option has been retired because its 1951 functionality is the default now. 1952 195320071118: 1954 The AT keyboard emulation of sunkbd(4) has been turned on 1955 by default. In order to make the special symbols of the Sun 1956 keyboards driven by sunkbd(4) work under X these now have 1957 to be configured the same way as Sun USB keyboards driven 1958 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1959 1960 Option "XkbLayout" "us" 1961 Option "XkbRules" "xorg" 1962 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1963 196420071024: 1965 It has been decided that it is desirable to provide ABI 1966 backwards compatibility to the FreeBSD 4/5/6 versions of the 1967 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1968 broken with the introduction of PCI domain support (see the 1969 20070930 entry). Unfortunately, this required the ABI of 1970 PCIOCGETCONF to be broken again in order to be able to 1971 provide backwards compatibility to the old version of that 1972 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1973 again. As for prominent ports this affects neither pciutils 1974 nor xorg-server this time, the hal port needs to be rebuilt 1975 however. 1976 197720071020: 1978 The misnamed kthread_create() and friends have been renamed 1979 to kproc_create() etc. Many of the callers already 1980 used kproc_start().. 1981 I will return kthread_create() and friends in a while 1982 with implementations that actually create threads, not procs. 1983 Renaming corresponds with version 800002. 1984 198520071010: 1986 RELENG_7 branched. 1987 1988COMMON ITEMS: 1989 1990 General Notes 1991 ------------- 1992 Avoid using make -j when upgrading. While generally safe, there are 1993 sometimes problems using -j to upgrade. If your upgrade fails with 1994 -j, please try again without -j. From time to time in the past there 1995 have been problems using -j with buildworld and/or installworld. This 1996 is especially true when upgrading between "distant" versions (eg one 1997 that cross a major release boundary or several minor releases, or when 1998 several months have passed on the -current branch). 1999 2000 Sometimes, obscure build problems are the result of environment 2001 poisoning. This can happen because the make utility reads its 2002 environment when searching for values for global variables. To run 2003 your build attempts in an "environmental clean room", prefix all make 2004 commands with 'env -i '. See the env(1) manual page for more details. 2005 2006 When upgrading from one major version to another it is generally best 2007 to upgrade to the latest code in the currently installed branch first, 2008 then do an upgrade to the new branch. This is the best-tested upgrade 2009 path, and has the highest probability of being successful. Please try 2010 this approach before reporting problems with a major version upgrade. 2011 2012 When upgrading a live system, having a root shell around before 2013 installing anything can help undo problems. Not having a root shell 2014 around can lead to problems if pam has changed too much from your 2015 starting point to allow continued authentication after the upgrade. 2016 2017 ZFS notes 2018 --------- 2019 When upgrading the boot ZFS pool to a new version, always follow 2020 these two steps: 2021 2022 1.) recompile and reinstall the ZFS boot loader and boot block 2023 (this is part of "make buildworld" and "make installworld") 2024 2025 2.) update the ZFS boot block on your boot drive 2026 2027 The following example updates the ZFS boot block on the first 2028 partition (freebsd-boot) of a GPT partitioned drive ad0: 2029 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2030 2031 Non-boot pools do not need these updates. 2032 2033 To build a kernel 2034 ----------------- 2035 If you are updating from a prior version of FreeBSD (even one just 2036 a few days old), you should follow this procedure. It is the most 2037 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2038 2039 make kernel-toolchain 2040 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2041 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2042 2043 To test a kernel once 2044 --------------------- 2045 If you just want to boot a kernel once (because you are not sure 2046 if it works, or if you want to boot a known bad kernel to provide 2047 debugging information) run 2048 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2049 nextboot -k testkernel 2050 2051 To just build a kernel when you know that it won't mess you up 2052 -------------------------------------------------------------- 2053 This assumes you are already running a CURRENT system. Replace 2054 ${arch} with the architecture of your machine (e.g. "i386", 2055 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2056 2057 cd src/sys/${arch}/conf 2058 config KERNEL_NAME_HERE 2059 cd ../compile/KERNEL_NAME_HERE 2060 make depend 2061 make 2062 make install 2063 2064 If this fails, go to the "To build a kernel" section. 2065 2066 To rebuild everything and install it on the current system. 2067 ----------------------------------------------------------- 2068 # Note: sometimes if you are running current you gotta do more than 2069 # is listed here if you are upgrading from a really old current. 2070 2071 <make sure you have good level 0 dumps> 2072 make buildworld 2073 make kernel KERNCONF=YOUR_KERNEL_HERE 2074 [1] 2075 <reboot in single user> [3] 2076 mergemaster -p [5] 2077 make installworld 2078 mergemaster -i [4] 2079 make delete-old [6] 2080 <reboot> 2081 2082 To cross-install current onto a separate partition 2083 -------------------------------------------------- 2084 # In this approach we use a separate partition to hold 2085 # current's root, 'usr', and 'var' directories. A partition 2086 # holding "/", "/usr" and "/var" should be about 2GB in 2087 # size. 2088 2089 <make sure you have good level 0 dumps> 2090 <boot into -stable> 2091 make buildworld 2092 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2093 <maybe newfs current's root partition> 2094 <mount current's root partition on directory ${CURRENT_ROOT}> 2095 make installworld DESTDIR=${CURRENT_ROOT} 2096 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2097 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2098 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2099 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2100 <reboot into current> 2101 <do a "native" rebuild/install as described in the previous section> 2102 <maybe install compatibility libraries from ports/misc/compat*> 2103 <reboot> 2104 2105 2106 To upgrade in-place from stable to current 2107 ---------------------------------------------- 2108 <make sure you have good level 0 dumps> 2109 make buildworld [9] 2110 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2111 [1] 2112 <reboot in single user> [3] 2113 mergemaster -p [5] 2114 make installworld 2115 mergemaster -i [4] 2116 make delete-old [6] 2117 <reboot> 2118 2119 Make sure that you've read the UPDATING file to understand the 2120 tweaks to various things you need. At this point in the life 2121 cycle of current, things change often and you are on your own 2122 to cope. The defaults can also change, so please read ALL of 2123 the UPDATING entries. 2124 2125 Also, if you are tracking -current, you must be subscribed to 2126 freebsd-current@freebsd.org. Make sure that before you update 2127 your sources that you have read and understood all the recent 2128 messages there. If in doubt, please track -stable which has 2129 much fewer pitfalls. 2130 2131 [1] If you have third party modules, such as vmware, you 2132 should disable them at this point so they don't crash your 2133 system on reboot. 2134 2135 [3] From the bootblocks, boot -s, and then do 2136 fsck -p 2137 mount -u / 2138 mount -a 2139 cd src 2140 adjkerntz -i # if CMOS is wall time 2141 Also, when doing a major release upgrade, it is required that 2142 you boot into single user mode to do the installworld. 2143 2144 [4] Note: This step is non-optional. Failure to do this step 2145 can result in a significant reduction in the functionality of the 2146 system. Attempting to do it by hand is not recommended and those 2147 that pursue this avenue should read this file carefully, as well 2148 as the archives of freebsd-current and freebsd-hackers mailing lists 2149 for potential gotchas. The -U option is also useful to consider. 2150 See mergemaster(8) for more information. 2151 2152 [5] Usually this step is a noop. However, from time to time 2153 you may need to do this if you get unknown user in the following 2154 step. It never hurts to do it all the time. You may need to 2155 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2156 install) after the buildworld before this step if you last updated 2157 from current before 20130425 or from -stable before 20130430. 2158 2159 [6] This only deletes old files and directories. Old libraries 2160 can be deleted by "make delete-old-libs", but you have to make 2161 sure that no program is using those libraries anymore. 2162 2163 [8] In order to have a kernel that can run the 4.x binaries needed to 2164 do an installworld, you must include the COMPAT_FREEBSD4 option in 2165 your kernel. Failure to do so may leave you with a system that is 2166 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2167 required to run the 5.x binaries on more recent kernels. And so on 2168 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2169 2170 Make sure that you merge any new devices from GENERIC since the 2171 last time you updated your kernel config file. 2172 2173 [9] When checking out sources, you must include the -P flag to have 2174 cvs prune empty directories. 2175 2176 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2177 "?=" instead of the "=" assignment operator, so that buildworld can 2178 override the CPUTYPE if it needs to. 2179 2180 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2181 not on the command line, or in /etc/make.conf. buildworld will 2182 warn if it is improperly defined. 2183FORMAT: 2184 2185This file contains a list, in reverse chronological order, of major 2186breakages in tracking -current. It is not guaranteed to be a complete 2187list of such breakages, and only contains entries since October 10, 2007. 2188If you need to see UPDATING entries from before that date, you will need 2189to fetch an UPDATING file from an older FreeBSD release. 2190 2191Copyright information: 2192 2193Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2194 2195Redistribution, publication, translation and use, with or without 2196modification, in full or in part, in any form or format of this 2197document are permitted without further permission from the author. 2198 2199THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2200IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2201WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2202DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2203INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2204(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2205SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2206HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2207STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2208IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2209POSSIBILITY OF SUCH DAMAGE. 2210 2211Contact Warner Losh if you have any questions about your use of 2212this document. 2213 2214$FreeBSD: stable/10/UPDATING 284787 2015-06-25 01:51:14Z gshapiro $ 2215