UPDATING revision 280275
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 1920150320: p8 20 Fix patch for SA-15:06.openssl. 21 2220150319: p7 FreeBSD-SA-15:06.openssl 23 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 24 2520150225: p6 FreeBSD-SA-15:04.igmp 26 FreeBSD-EN-15:01.vt 27 FreeBSD-EN-15:02.openssl 28 FreeBSD-EN-15:03.freebsd-update 29 30 Fix integer overflow in IGMP protocol. [SA-15:04] 31 32 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 33 34 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 35 36 Fix freebsd-update libraries update ordering issue. [EN-15:03] 37 3820150127: p5 FreeBSD-SA-15:02.kmem 39 FreeBSD-SA-15:03.sctp 40 41 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 42 vulnerability. [SA-15:02] 43 44 Fix SCTP stream reset vulnerability. [SA-15:03] 45 4620150114: p4 FreeBSD-SA-15:01.openssl 47 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 48 4920141223: p3 FreeBSD-SA-14:31.ntp 50 FreeBSD-EN-14:13.freebsd-update 51 52 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 53 Fix directory deletion issue in freebsd-update. [EN-14:13] 54 5520141217: p2 FreeBSD-SA-14:30.unbound 56 Fix unbound remote denial of service vulnerability. 57 5820141210: p1 FreeBSD-SA-14:27.stdio 59 FreeBSD-SA-14:28.file 60 61 Fix buffer overflow in stdio. [SA-14:27] 62 63 Fix multiple vulnerabilities in file(1) and libmagic(3). 64 [SA-14:28] 65 6620140904: 67 The ofwfb driver, used to provide a graphics console on PowerPC when 68 using vt(4), no longer allows mmap() of all of physical memory. This 69 will prevent Xorg on PowerPC with some ATI graphics cards from 70 initializing properly unless x11-servers/xorg-server is updated to 71 1.12.4_8 or newer. 72 7320140831: 74 The libatf-c and libatf-c++ major versions were downgraded to 0 and 75 1 respectively to match the upstream numbers. They were out of 76 sync because, when they were originally added to FreeBSD, the 77 upstream versions were not respected. These libraries are private 78 and not yet built by default, so renumbering them should be a 79 non-issue. However, unclean source trees will yield broken test 80 programs once the operator executes "make delete-old-libs" after a 81 "make installworld". 82 83 Additionally, the atf-sh binary was made private by moving it into 84 /usr/libexec/. Already-built shell test programs will keep the 85 path to the old binary so they will break after "make delete-old" 86 is run. 87 88 If you are using WITH_TESTS=yes (not the default), wipe the object 89 tree and rebuild from scratch to prevent spurious test failures. 90 This is only needed once: the misnumbered libraries and misplaced 91 binaries have been added to OptionalObsoleteFiles.inc so they will 92 be removed during a clean upgrade. 93 9420140814: 95 The ixgbe tunables now match their sysctl counterparts, for example: 96 hw.ixgbe.enable_aim => hw.ix.enable_aim 97 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 98 9920140801: 100 The NFSv4.1 server committed by r269398 changes the internal 101 function call interfaces used between the NFS and krpc modules. 102 As such, __FreeBSD_version was bumped. 103 10420140729: 105 The default unbound configuration has been modified to address 106 issues with reverse lookups on networks that use private 107 address ranges. If you use the local_unbound service, run 108 "service local_unbound setup" as root to regenerate your 109 configuration, then "service local_unbound reload" to load the 110 new configuration. 111 11220140717: 113 It is no longer necessary to include the dwarf version in your DEBUG 114 options in your kernel config file. The bug that required it to be 115 placed in the config file has bene fixed. DEBUG should now just 116 contain -g. The build system will automatically update things 117 to do the right thing. 118 11920140715: 120 Several ABI breaking changes were merged to CTL and new iSCSI code. 121 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 122 iscsictl need to be rebuilt to work with a new kernel. 123 12420140708: 125 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 126 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 127 which differs from the behaviour controlled by this knob.) 128 12920140608: 130 On i386 and amd64 systems, the onifconsole flag is now set by default 131 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 132 as a login TTY if it is set in the bootloader as an active kernel 133 console. No changes in behavior should result otherwise. To revert to 134 the previous behavior, set ttyu0 to "off" in /etc/ttys. 135 13620140512: 137 Clang and llvm have been upgraded to 3.4.1 release. 138 13920140321: 140 Clang and llvm have been upgraded to 3.4 release. 141 14220140306: 143 If a Makefile in a tests/ directory was auto-generating a Kyuafile 144 instead of providing an explicit one, this would prevent such 145 Makefile from providing its own Kyuafile in the future during 146 NO_CLEAN builds. This has been fixed in the Makefiles but manual 147 intervention is needed to clean an objdir if you use NO_CLEAN: 148 # find /usr/obj -name Kyuafile | xargs rm -f 149 15020140303: 151 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 152 capability mode support. Please note that enabling the feature in 153 kernel is still highly recommended. 154 15520140227: 156 OpenSSH is now built with sandbox support, and will use sandbox as 157 the default privilege separation method. This requires Capsicum 158 capability mode support in kernel. 159 16020140216: 161 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 162 been deprecated and will not be part of FreeBSD 11.0 and later 163 releases. If you use this driver, please consider switching to 164 the nfe(4) driver instead. 165 16620140120: 167 10.0-RELEASE. 168 16920131216: 170 The behavior of gss_pseudo_random() for the krb5 mechanism 171 has changed, for applications requesting a longer random string 172 than produced by the underlying enctype's pseudo-random() function. 173 In particular, the random string produced from a session key of 174 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 175 be different at the 17th octet and later, after this change. 176 The counter used in the PRF+ construction is now encoded as a 177 big-endian integer in accordance with RFC 4402. 178 __FreeBSD_version is bumped to 1000701. 179 18020131108: 181 The WITHOUT_ATF build knob has been removed and its functionality 182 has been subsumed into the more generic WITHOUT_TESTS. If you were 183 using the former to disable the build of the ATF libraries, you 184 should change your settings to use the latter. 185 18620131031: 187 The default version of mtree is nmtree which is obtained from 188 NetBSD. The output is generally the same, but may vary 189 slightly. If you found you need identical output adding 190 "-F freebsd9" to the command line should do the trick. For the 191 time being, the old mtree is available as fmtree. 192 19320131014: 194 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 195 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 196 1.1.4_8 and verify bsdyml not linked in, before running "make 197 delete-old-libs": 198 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 199 or 200 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 201 20220131010: 203 The rc.d/jail script has been updated to support jail(8) 204 configuration file. The "jail_<jname>_*" rc.conf(5) variables 205 for per-jail configuration are automatically converted to 206 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 207 This is transparently backward compatible. See below about some 208 incompatibilities and rc.conf(5) manual page for more details. 209 210 These variables are now deprecated in favor of jail(8) configuration 211 file. One can use "rc.d/jail config <jname>" command to generate 212 a jail(8) configuration file in /var/run/jail.<jname>.conf without 213 running the jail(8) utility. The default pathname of the 214 configuration file is /etc/jail.conf and can be specified by 215 using $jail_conf or $jail_<jname>_conf variables. 216 217 Please note that jail_devfs_ruleset accepts an integer at 218 this moment. Please consider to rewrite the ruleset name 219 with an integer. 220 22120130930: 222 BIND has been removed from the base system. If all you need 223 is a local resolver, simply enable and start the local_unbound 224 service instead. Otherwise, several versions of BIND are 225 available in the ports tree. The dns/bind99 port is one example. 226 227 With this change, nslookup(1) and dig(1) are no longer in the base 228 system. Users should instead use host(1) and drill(1) which are 229 in the base system. Alternatively, nslookup and dig can 230 be obtained by installing the dns/bind-tools port. 231 23220130916: 233 With the addition of unbound(8), a new unbound user is now 234 required during installworld. "mergemaster -p" can be used to 235 add the user prior to installworld, as documented in the handbook. 236 23720130911: 238 OpenSSH is now built with DNSSEC support, and will by default 239 silently trust signed SSHFP records. This can be controlled with 240 the VerifyHostKeyDNS client configuration setting. DNSSEC support 241 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 242 24320130906: 244 The GNU Compiler Collection and C++ standard library (libstdc++) 245 are no longer built by default on platforms where clang is the system 246 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 247 options in src.conf. 248 24920130905: 250 The PROCDESC kernel option is now part of the GENERIC kernel 251 configuration and is required for the rwhod(8) to work. 252 If you are using custom kernel configuration, you should include 253 'options PROCDESC'. 254 25520130905: 256 The API and ABI related to the Capsicum framework was modified 257 in backward incompatible way. The userland libraries and programs 258 have to be recompiled to work with the new kernel. This includes the 259 following libraries and programs, but the whole buildworld is 260 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 261 kdump, procstat, rwho, rwhod, uniq. 262 26320130903: 264 AES-NI intrinsic support has been added to gcc. The AES-NI module 265 has been updated to use this support. A new gcc is required to build 266 the aesni module on both i386 and amd64. 267 26820130821: 269 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 270 Thus "device padlock_rng" and "device rdrand_rng" should be 271 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 272 27320130813: 274 WITH_ICONV has been split into two feature sets. WITH_ICONV now 275 enables just the iconv* functionality and is now on by default. 276 WITH_LIBICONV_COMPAT enables the libiconv api and link time 277 compatability. Set WITHOUT_ICONV to build the old way. 278 If you have been using WITH_ICONV before, you will very likely 279 need to turn on WITH_LIBICONV_COMPAT. 280 28120130806: 282 INVARIANTS option now enables DEBUG for code with OpenSolaris and 283 Illumos origin, including ZFS. If you have INVARIANTS in your 284 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 285 explicitly. 286 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 287 locks if WITNESS option was set. Because that generated a lot of 288 witness(9) reports and all of them were believed to be false 289 positives, this is no longer done. New option OPENSOLARIS_WITNESS 290 can be used to achieve the previous behavior. 291 29220130806: 293 Timer values in IPv6 data structures now use time_uptime instead 294 of time_second. Although this is not a user-visible functional 295 change, userland utilities which directly use them---ndp(8), 296 rtadvd(8), and rtsold(8) in the base system---need to be updated 297 to r253970 or later. 298 29920130802: 300 find -delete can now delete the pathnames given as arguments, 301 instead of only files found below them or if the pathname did 302 not contain any slashes. Formerly, the following error message 303 would result: 304 305 find: -delete: <path>: relative path potentially not safe 306 307 Deleting the pathnames given as arguments can be prevented 308 without error messages using -mindepth 1 or by changing 309 directory and passing "." as argument to find. This works in the 310 old as well as the new version of find. 311 31220130726: 313 Behavior of devfs rules path matching has been changed. 314 Pattern is now always matched against fully qualified devfs 315 path and slash characters must be explicitly matched by 316 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 317 subdirectories must be reviewed. 318 31920130716: 320 The default ARM ABI has changed to the ARM EABI. The old ABI is 321 incompatible with the ARM EABI and all programs and modules will 322 need to be rebuilt to work with a new kernel. 323 324 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 325 326 NOTE: Support for the old ABI will be removed in the future and 327 users are advised to upgrade. 328 32920130709: 330 pkg_install has been disconnected from the build if you really need it 331 you should add WITH_PKGTOOLS in your src.conf(5). 332 33320130709: 334 Most of network statistics structures were changed to be able 335 keep 64-bits counters. Thus all tools, that work with networking 336 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 337 33820130629: 339 Fix targets that run multiple make's to use && rather than ; 340 so that subsequent steps depend on success of previous. 341 342 NOTE: if building 'universe' with -j* on stable/8 or stable/9 343 it would be better to start the build using bmake, to avoid 344 overloading the machine. 345 34620130618: 347 Fix a bug that allowed a tracing process (e.g. gdb) to write 348 to a memory-mapped file in the traced process's address space 349 even if neither the traced process nor the tracing process had 350 write access to that file. 351 35220130615: 353 CVS has been removed from the base system. An exact copy 354 of the code is available from the devel/cvs port. 355 35620130613: 357 Some people report the following error after the switch to bmake: 358 359 make: illegal option -- J 360 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 361 ... 362 *** [buildworld] Error code 2 363 364 this likely due to an old instance of make in 365 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 366 which src/Makefile will use that blindly, if it exists, so if 367 you see the above error: 368 369 rm -rf `make -V MAKEPATH` 370 371 should resolve it. 372 37320130516: 374 Use bmake by default. 375 Whereas before one could choose to build with bmake via 376 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 377 make. The goal is to remove these knobs for 10-RELEASE. 378 379 It is worth noting that bmake (like gmake) treats the command 380 line as the unit of failure, rather than statements within the 381 command line. Thus '(cd some/where && dosomething)' is safer 382 than 'cd some/where; dosomething'. The '()' allows consistent 383 behavior in parallel build. 384 38520130429: 386 Fix a bug that allows NFS clients to issue READDIR on files. 387 38820130426: 389 The WITHOUT_IDEA option has been removed because 390 the IDEA patent expired. 391 39220130426: 393 The sysctl which controls TRIM support under ZFS has been renamed 394 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 395 enabled by default. 396 39720130425: 398 The mergemaster command now uses the default MAKEOBJDIRPREFIX 399 rather than creating it's own in the temporary directory in 400 order allow access to bootstrapped versions of tools such as 401 install and mtree. When upgrading from version of FreeBSD where 402 the install command does not support -l, you will need to 403 install a new mergemaster command if mergemaster -p is required. 404 This can be accomplished with the command (cd src/usr.sbin/mergemaster 405 && make install). 406 40720130404: 408 Legacy ATA stack, disabled and replaced by new CAM-based one since 409 FreeBSD 9.0, completely removed from the sources. Kernel modules 410 atadisk and atapi*, user-level tools atacontrol and burncd are 411 removed. Kernel option `options ATA_CAM` is now permanently enabled 412 and removed. 413 41420130319: 415 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 416 and socketpair(2). Software, in particular Kerberos, may 417 automatically detect and use these during building. The resulting 418 binaries will not work on older kernels. 419 42020130308: 421 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 422 information, see the respective 20130304 entry). 423 42420130304: 425 Recent commits to callout(9) changed the size of struct callout, 426 so the KBI is probably heavily disturbed. Also, some functions 427 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 428 by macros. Every kernel module using it won't load, so rebuild 429 is requested. 430 431 The ctl device has been re-enabled in GENERIC for i386 and amd64, 432 but does not initialize by default (because of the new CTL_DISABLE 433 option) to save memory. To re-enable it, remove the CTL_DISABLE 434 option from the kernel config file or set kern.cam.ctl.disable=0 435 in /boot/loader.conf. 436 43720130301: 438 The ctl device has been disabled in GENERIC for i386 and amd64. 439 This was done due to the extra memory being allocated at system 440 initialisation time by the ctl driver which was only used if 441 a CAM target device was created. This makes a FreeBSD system 442 unusable on 128MB or less of RAM. 443 44420130208: 445 A new compression method (lz4) has been merged to -HEAD. Please 446 refer to zpool-features(7) for more information. 447 448 Please refer to the "ZFS notes" section of this file for information 449 on upgrading boot ZFS pools. 450 45120130129: 452 A BSD-licensed patch(1) variant has been added and is installed 453 as bsdpatch, being the GNU version the default patch. 454 To inverse the logic and use the BSD-licensed one as default, 455 while having the GNU version installed as gnupatch, rebuild 456 and install world with the WITH_BSD_PATCH knob set. 457 45820130121: 459 Due to the use of the new -l option to install(1) during build 460 and install, you must take care not to directly set the INSTALL 461 make variable in your /etc/make.conf, /etc/src.conf, or on the 462 command line. If you wish to use the -C flag for all installs 463 you may be able to add INSTALL+=-C to /etc/make.conf or 464 /etc/src.conf. 465 46620130118: 467 The install(1) option -M has changed meaning and now takes an 468 argument that is a file or path to append logs to. In the 469 unlikely event that -M was the last option on the command line 470 and the command line contained at least two files and a target 471 directory the first file will have logs appended to it. The -M 472 option served little practical purpose in the last decade so its 473 use is expected to be extremely rare. 474 47520121223: 476 After switching to Clang as the default compiler some users of ZFS 477 on i386 systems started to experience stack overflow kernel panics. 478 Please consider using 'options KSTACK_PAGES=4' in such configurations. 479 48020121222: 481 GEOM_LABEL now mangles label names read from file system metadata. 482 Mangling affect labels containing spaces, non-printable characters, 483 '%' or '"'. Device names in /etc/fstab and other places may need to 484 be updated. 485 48620121217: 487 By default, only the 10 most recent kernel dumps will be saved. To 488 restore the previous behaviour (no limit on the number of kernel dumps 489 stored in the dump directory) add the following line to /etc/rc.conf: 490 491 savecore_flags="" 492 49320121201: 494 With the addition of auditdistd(8), a new auditdistd user is now 495 required during installworld. "mergemaster -p" can be used to 496 add the user prior to installworld, as documented in the handbook. 497 49820121117: 499 The sin6_scope_id member variable in struct sockaddr_in6 is now 500 filled by the kernel before passing the structure to the userland via 501 sysctl or routing socket. This means the KAME-specific embedded scope 502 id in sin6_addr.s6_addr[2] is always cleared in userland application. 503 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 504 __FreeBSD_version is bumped to 1000025. 505 50620121105: 507 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 508 This means that the world and kernel will be compiled with clang 509 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 510 and /usr/bin/cpp. To disable this behavior and revert to building 511 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 512 of current may need to bootstrap WITHOUT_CLANG first if the clang 513 build fails (its compatibility window doesn't extend to the 9 stable 514 branch point). 515 51620121102: 517 The IPFIREWALL_FORWARD kernel option has been removed. Its 518 functionality now turned on by default. 519 52020121023: 521 The ZERO_COPY_SOCKET kernel option has been removed and 522 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 523 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 524 mechanism which is not safe and may result in kernel crashes. 525 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 526 driver supports disposeable external page sized mbuf storage. 527 Proper replacements for both zero-copy mechanisms are under 528 consideration and will eventually lead to complete removal 529 of the two kernel options. 530 53120121023: 532 The IPv4 network stack has been converted to network byte 533 order. The following modules need to be recompiled together 534 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 535 pf(4), ipfw(4), ng_ipfw(4), stf(4). 536 53720121022: 538 Support for non-MPSAFE filesystems was removed from VFS. The 539 VFS_VERSION was bumped, all filesystem modules shall be 540 recompiled. 541 54220121018: 543 All the non-MPSAFE filesystems have been disconnected from 544 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 545 portalfs, smbfs, xfs. 546 54720121016: 548 The interface cloning API and ABI has changed. The following 549 modules need to be recompiled together with kernel: 550 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 551 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 552 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 553 55420121015: 555 The sdhci driver was split in two parts: sdhci (generic SD Host 556 Controller logic) and sdhci_pci (actual hardware driver). 557 No kernel config modifications are required, but if you 558 load sdhc as a module you must switch to sdhci_pci instead. 559 56020121014: 561 Import the FUSE kernel and userland support into base system. 562 56320121013: 564 The GNU sort(1) program has been removed since the BSD-licensed 565 sort(1) has been the default for quite some time and no serious 566 problems have been reported. The corresponding WITH_GNU_SORT 567 knob has also gone. 568 56920121006: 570 The pfil(9) API/ABI for AF_INET family has been changed. Packet 571 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 572 with new kernel. 573 57420121001: 575 The net80211(4) ABI has been changed to allow for improved driver 576 PS-POLL and power-save support. All wireless drivers need to be 577 recompiled to work with the new kernel. 578 57920120913: 580 The random(4) support for the VIA hardware random number 581 generator (`PADLOCK') is no longer enabled unconditionally. 582 Add the padlock_rng device in the custom kernel config if 583 needed. The GENERIC kernels on i386 and amd64 do include the 584 device, so the change only affects the custom kernel 585 configurations. 586 58720120908: 588 The pf(4) packet filter ABI has been changed. pfctl(8) and 589 snmp_pf module need to be recompiled to work with new kernel. 590 59120120828: 592 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 593 to -HEAD. Pools that have empty_bpobj in active state can not be 594 imported read-write with ZFS implementations that do not support 595 this feature. For more information read the zpool-features(5) 596 manual page. 597 59820120727: 599 The sparc64 ZFS loader has been changed to no longer try to auto- 600 detect ZFS providers based on diskN aliases but now requires these 601 to be explicitly listed in the OFW boot-device environment variable. 602 60320120712: 604 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 605 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 606 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 607 60820120712: 609 The following sysctls and tunables have been renamed for consistency 610 with other variables: 611 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 612 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 613 61420120628: 615 The sort utility has been replaced with BSD sort. For now, GNU sort 616 is also available as "gnusort" or the default can be set back to 617 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 618 installed as "bsdsort". 619 62020120611: 621 A new version of ZFS (pool version 5000) has been merged to -HEAD. 622 Starting with this version the old system of ZFS pool versioning 623 is superseded by "feature flags". This concept enables forward 624 compatibility against certain future changes in functionality of ZFS 625 pools. The first read-only compatible "feature flag" for ZFS pools 626 is named "com.delphix:async_destroy". For more information 627 read the new zpool-features(5) manual page. 628 Please refer to the "ZFS notes" section of this file for information 629 on upgrading boot ZFS pools. 630 63120120417: 632 The malloc(3) implementation embedded in libc now uses sources imported 633 as contrib/jemalloc. The most disruptive API change is to 634 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 635 delete it prior to installworld, and optionally re-create it using the 636 new format after rebooting. See malloc.conf(5) for details 637 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 638 NAMESPACE section). 639 64020120328: 641 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 642 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 643 now spelled mips. This is to aid compatibility with third-party 644 software that expects this naming scheme in uname(3). Little-endian 645 settings are unchanged. If you are updating a big-endian mips64 machine 646 from before this change, you may need to set MACHINE_ARCH=mips64 in 647 your environment before the new build system will recognize your machine. 648 64920120306: 650 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 651 platforms. 652 65320120229: 654 Now unix domain sockets behave "as expected" on nullfs(5). Previously 655 nullfs(5) did not pass through all behaviours to the underlying layer, 656 as a result if we bound to a socket on the lower layer we could connect 657 only to the lower path; if we bound to the upper layer we could connect 658 only to the upper path. The new behavior is one can connect to both the 659 lower and the upper paths regardless what layer path one binds to. 660 66120120211: 662 The getifaddrs upgrade path broken with 20111215 has been restored. 663 If you have upgraded in between 20111215 and 20120209 you need to 664 recompile libc again with your kernel. You still need to recompile 665 world to be able to configure CARP but this restriction already 666 comes from 20111215. 667 66820120114: 669 The set_rcvar() function has been removed from /etc/rc.subr. All 670 base and ports rc.d scripts have been updated, so if you have a 671 port installed with a script in /usr/local/etc/rc.d you can either 672 hand-edit the rcvar= line, or reinstall the port. 673 674 An easy way to handle the mass-update of /etc/rc.d: 675 rm /etc/rc.d/* && mergemaster -i 676 67720120109: 678 panic(9) now stops other CPUs in the SMP systems, disables interrupts 679 on the current CPU and prevents other threads from running. 680 This behavior can be reverted using the kern.stop_scheduler_on_panic 681 tunable/sysctl. 682 The new behavior can be incompatible with kern.sync_on_panic. 683 68420111215: 685 The carp(4) facility has been changed significantly. Configuration 686 of the CARP protocol via ifconfig(8) has changed, as well as format 687 of CARP events submitted to devd(8) has changed. See manual pages 688 for more information. The arpbalance feature of carp(4) is currently 689 not supported anymore. 690 691 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 692 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 693 need to be recompiled. 694 69520111122: 696 The acpi_wmi(4) status device /dev/wmistat has been renamed to 697 /dev/wmistat0. 698 69920111108: 700 The option VFS_ALLOW_NONMPSAFE option has been added in order to 701 explicitely support non-MPSAFE filesystems. 702 It is on by default for all supported platform at this present 703 time. 704 70520111101: 706 The broken amd(4) driver has been replaced with esp(4) in the amd64, 707 i386 and pc98 GENERIC kernel configuration files. 708 70920110930: 710 sysinstall has been removed 711 71220110923: 713 The stable/9 branch created in subversion. This corresponds to the 714 RELENG_9 branch in CVS. 715 71620110913: 717 This commit modifies vfs_register() so that it uses a hash 718 calculation to set vfc_typenum, which is enabled by default. 719 The first time a system is booted after this change, the 720 vfc_typenum values will change for all file systems. The 721 main effect of this is a change to the NFS server file handles 722 for file systems that use vfc_typenum in their fsid, such as ZFS. 723 It will, however, prevent vfc_typenum from changing when file 724 systems are loaded in a different order for subsequent reboots. 725 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 726 until you are ready to remount all NFS clients after a reboot. 727 72820110828: 729 Bump the shared library version numbers for libraries that 730 do not use symbol versioning, have changed the ABI compared 731 to stable/8 and which shared library version was not bumped. 732 Done as part of 9.0-RELEASE cycle. 733 73420110815: 735 During the merge of Capsicum features, the fget(9) KPI was modified. 736 This may require the rebuilding of out-of-tree device drivers -- 737 issues have been reported specifically with the nVidia device driver. 738 __FreeBSD_version is bumped to 900041. 739 740 Also, there is a period between 20110811 and 20110814 where the 741 special devices /dev/{stdin,stdout,stderr} did not work correctly. 742 Building world from a kernel during that window may not work. 743 74420110628: 745 The packet filter (pf) code has been updated to OpenBSD 4.5. 746 You need to update userland tools to be in sync with kernel. 747 This update breaks backward compatibility with earlier pfsync(4) 748 versions. Care must be taken when updating redundant firewall setups. 749 75020110608: 751 The following sysctls and tunables are retired on x86 platforms: 752 machdep.hlt_cpus 753 machdep.hlt_logical_cpus 754 The following sysctl is retired: 755 machdep.hyperthreading_allowed 756 The sysctls were supposed to provide a way to dynamically offline and 757 online selected CPUs on x86 platforms, but the implementation has not 758 been reliable especially with SCHED_ULE scheduler. 759 machdep.hyperthreading_allowed tunable is still available to ignore 760 hyperthreading CPUs at OS level. 761 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 762 where X is an APIC ID of a CPU. Be advised, though, that disabling 763 CPUs in non-uniform fashion will result in non-uniform topology and 764 may lead to sub-optimal system performance with SCHED_ULE, which is 765 a default scheduler. 766 76720110607: 768 cpumask_t type is retired and cpuset_t is used in order to describe 769 a mask of CPUs. 770 77120110531: 772 Changes to ifconfig(8) for dynamic address family detection mandate 773 that you are running a kernel of 20110525 or later. Make sure to 774 follow the update procedure to boot a new kernel before installing 775 world. 776 77720110513: 778 Support for sun4v architecture is officially dropped 779 78020110503: 781 Several KPI breaking changes have been committed to the mii(4) layer, 782 the PHY drivers and consequently some Ethernet drivers using mii(4). 783 This means that miibus.ko and the modules of the affected Ethernet 784 drivers need to be recompiled. 785 786 Note to kernel developers: Given that the OUI bit reversion problem 787 was fixed as part of these changes all mii(4) commits related to OUIs, 788 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 789 handling, no longer can be merged verbatim to stable/8 and previous 790 branches. 791 79220110430: 793 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 794 into their kernel configurations along with 'device pci'. 795 79620110427: 797 The default NFS client is now the new NFS client, so fstype "newnfs" 798 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 799 Although mounts via fstype "nfs" will usually work without userland 800 changes, it is recommended that the mount(8) and mount_nfs(8) 801 commands be rebuilt from sources and that a link to mount_nfs called 802 mount_oldnfs be created. The new client is compiled into the 803 kernel with "options NFSCL" and this is needed for diskless root 804 file systems. The GENERIC kernel configs have been changed to use 805 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 806 To use the regular/old client, you can "mount -t oldnfs ...". For 807 a diskless root file system, you must also include a line like: 808 809 vfs.root.mountfrom="oldnfs:" 810 811 in the boot/loader.conf on the root fs on the NFS server to make 812 a diskless root fs use the old client. 813 81420110424: 815 The GENERIC kernels for all architectures now default to the new 816 CAM-based ATA stack. It means that all legacy ATA drivers were 817 removed and replaced by respective CAM drivers. If you are using 818 ATA device names in /etc/fstab or other places, make sure to update 819 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 820 where 'Y's are the sequential numbers starting from zero for each type 821 in order of detection, unless configured otherwise with tunables, 822 see cam(4)). There will be symbolic links created in /dev/ to map 823 old adX devices to the respective adaY. They should provide basic 824 compatibility for file systems mounting in most cases, but they do 825 not support old user-level APIs and do not have respective providers 826 in GEOM. Consider using updated management tools with new device names. 827 828 It is possible to load devices ahci, ata, siis and mvs as modules, 829 but option ATA_CAM should remain in kernel configuration to make ata 830 module work as CAM driver supporting legacy ATA controllers. Device ata 831 still can be used in modular fashion (atacore + ...). Modules atadisk 832 and atapi* are not used and won't affect operation in ATA_CAM mode. 833 Note that to use CAM-based ATA kernel should include CAM devices 834 scbus, pass, da (or explicitly ada), cd and optionally others. All of 835 them are parts of the cam module. 836 837 ataraid(4) functionality is now supported by the RAID GEOM class. 838 To use it you can load geom_raid kernel module and use graid(8) tool 839 for management. Instead of /dev/arX device names, use /dev/raid/rX. 840 841 No kernel config options or code have been removed, so if a problem 842 arises, please report it and optionally revert to the old ATA stack. 843 In order to do it you can remove from the kernel config: 844 options ATA_CAM 845 device ahci 846 device mvs 847 device siis 848 , and instead add back: 849 device atadisk # ATA disk drives 850 device ataraid # ATA RAID drives 851 device atapicd # ATAPI CDROM drives 852 device atapifd # ATAPI floppy drives 853 device atapist # ATAPI tape drives 854 85520110423: 856 The default NFS server has been changed to the new server, which 857 was referred to as the experimental server. If you need to switch 858 back to the old NFS server, you must now put the "-o" option on 859 both the mountd and nfsd commands. This can be done using the 860 mountd_flags and nfs_server_flags rc.conf variables until an 861 update to the rc scripts is committed, which is coming soon. 862 86320110418: 864 The GNU Objective-C runtime library (libobjc), and other Objective-C 865 related components have been removed from the base system. If you 866 require an Objective-C library, please use one of the available ports. 867 86820110331: 869 ath(4) has been split into bus- and device- modules. if_ath contains 870 the HAL, the TX rate control and the network device code. if_ath_pci 871 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 872 contains the AHB glue. Users need to load both if_ath_pci and if_ath 873 in order to use ath on everything else. 874 875 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 876 need to load if_ath and if_ath_pci for ath(4) operation. 877 87820110314: 879 As part of the replacement of sysinstall, the process of building 880 release media has changed significantly. For details, please re-read 881 release(7), which has been updated to reflect the new build process. 882 88320110218: 884 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 885 is the last available version under GPLv2. It brings a number of new 886 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 887 4.1 and SSE 4.2), better support for powerpc64, a number of new 888 directives, and lots of other small improvements. See the ChangeLog 889 file in contrib/binutils for the full details. 890 89120110218: 892 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 893 compliant, and will now use half of hash for authentication. 894 This will break interoperability with all stacks (including all 895 actual FreeBSD versions) who implement 896 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 897 authentication). 898 The only workaround with such peers is to use another HMAC 899 algorithm for IPsec ("phase 2") authentication. 900 90120110207: 902 Remove the uio_yield prototype and symbol. This function has 903 been misnamed since it was introduced and should not be 904 globally exposed with this name. The equivalent functionality 905 is now available using kern_yield(curthread->td_user_pri). 906 The function remains undocumented. 907 90820110112: 909 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 910 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 911 for scalar sysctls is defined but disabled. Code that needs 912 UQUAD to pass the type checking that must compile on older 913 systems where the define is not present can check against 914 __FreeBSD_version >= 900030. 915 916 The system dialog(1) has been replaced with a new version previously 917 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 918 with the previous version, but the libdialog associated with it has 919 a largely incompatible API. As such, the original version of libdialog 920 will be kept temporarily as libodialog, until its base system consumers 921 are replaced or updated. Bump __FreeBSD_version to 900030. 922 92320110103: 924 If you are trying to run make universe on a -stable system, and you get 925 the following warning: 926 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 927 unknown. config(8) likely too old." 928 or something similar to it, then you must upgrade your -stable system 929 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 930 stable/8) or build the config from the latest stable/8 branch and 931 install it on your system. 932 933 Prior to this date, building a current universe on 8-stable system from 934 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 935 error in the first kernel build phase. A new config on those old 936 systems will fix that problem for older versions of -current. 937 93820101228: 939 The TCP stack has been modified to allow Khelp modules to interact with 940 it via helper hook points and store per-connection data in the TCP 941 control block. Bump __FreeBSD_version to 900029. User space tools that 942 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 943 be recompiled. 944 94520101114: 946 Generic IEEE 802.3 annex 31B full duplex flow control support has been 947 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 948 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 949 to take advantage of it instead of using custom implementations. This 950 means that these drivers now no longer unconditionally advertise 951 support for flow control but only do so if flow control is a selected 952 media option. This was implemented in the generic support that way in 953 order to allow flow control to be switched on and off via ifconfig(8) 954 with the PHY specific default to typically off in order to protect 955 from unwanted effects. Consequently, if you used flow control with 956 one of the above mentioned drivers you now need to explicitly enable 957 it, for example via: 958 ifconfig bge0 media auto mediaopt flowcontrol 959 960 Along with the above mentioned changes generic support for setting 961 1000baseT master mode also has been added and brgphy(4), ciphy(4), 962 e1000phy(4) as well as ip1000phy(4) have been converted to take 963 advantage of it. This means that these drivers now no longer take the 964 link0 parameter for selecting master mode but the master media option 965 has to be used instead, for example like in the following: 966 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 967 968 Selection of master mode now is also available with all other PHY 969 drivers supporting 1000baseT. 970 97120101111: 972 The TCP stack has received a significant update to add support for 973 modularised congestion control and generally improve the clarity of 974 congestion control decisions. Bump __FreeBSD_version to 900025. User 975 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 976 sockstat) need to be recompiled. 977 97820101002: 979 The man(1) utility has been replaced by a new version that no longer 980 uses /etc/manpath.config. Please consult man.conf(5) for how to 981 migrate local entries to the new format. 982 98320100928: 984 The copyright strings printed by login(1) and sshd(8) at the time of a 985 new connection have been removed to follow other operating systems and 986 upstream sshd. 987 98820100915: 989 A workaround for a fixed ld bug has been removed in kernel code, 990 so make sure that your system ld is built from sources after 991 revision 210245 from 2010-07-19 (r211583 if building head kernel 992 on stable/8, r211584 for stable/7; both from 2010-08-21). 993 A symptom of incorrect ld version is different addresses for 994 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 995 99620100913: 997 The $ipv6_prefer variable in rc.conf(5) has been split into 998 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 999 1000 The $ip6addrctl_policy is a variable to choose a pre-defined 1001 address selection policy set by ip6addrctl(8). A value 1002 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1003 default is "AUTO". 1004 1005 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1006 flag (see an entry of 20090926) is set on an interface with no 1007 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1008 security reason. If you want IPv6 link-local address on all 1009 interfaces by default, set this to "YES". 1010 1011 The old ipv6_prefer="YES" is equivalent to 1012 ipv6_activate_all_interfaces="YES" and 1013 ip6addrctl_policy="ipv6_prefer". 1014 101520100913: 1016 DTrace has grown support for userland tracing. Due to this, DTrace is 1017 now i386 and amd64 only. 1018 dtruss(1) is now installed by default on those systems and a new 1019 kernel module is needed for userland tracing: fasttrap. 1020 No changes to your kernel config file are necessary to enable 1021 userland tracing, but you might consider adding 'STRIP=' and 1022 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1023 to have informative userland stack traces in DTrace (ustack). 1024 102520100725: 1026 The acpi_aiboost(4) driver has been removed in favor of the new 1027 aibs(4) driver. You should update your kernel configuration file. 1028 102920100722: 1030 BSD grep has been imported to the base system and it is built by 1031 default. It is completely BSD licensed, highly GNU-compatible, uses 1032 less memory than its GNU counterpart and has a small codebase. 1033 However, it is slower than its GNU counterpart, which is mostly 1034 noticeable for larger searches, for smaller ones it is measurable 1035 but not significant. The reason is complex, the most important factor 1036 is that we lack a modern and efficient regex library and GNU 1037 overcomes this by optimizing the searches internally. Future work 1038 on improving the regex performance is planned, for the meantime, 1039 users that need better performance, can build GNU grep instead by 1040 setting the WITH_GNU_GREP knob. 1041 104220100713: 1043 Due to the import of powerpc64 support, all existing powerpc kernel 1044 configuration files must be updated with a machine directive like this: 1045 machine powerpc powerpc 1046 1047 In addition, an updated config(8) is required to build powerpc kernels 1048 after this change. 1049 105020100713: 1051 A new version of ZFS (version 15) has been merged to -HEAD. 1052 This version uses a python library for the following subcommands: 1053 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1054 For full functionality of these commands the following port must 1055 be installed: sysutils/py-zfs 1056 105720100429: 1058 'vm_page's are now hashed by physical address to an array of mutexes. 1059 Currently this is only used to serialize access to hold_count. Over 1060 time the page queue mutex will be peeled away. This changes the size 1061 of pmap on every architecture. And requires all callers of vm_page_hold 1062 and vm_page_unhold to be updated. 1063 106420100402: 1065 WITH_CTF can now be specified in src.conf (not recommended, there 1066 are some problems with static executables), make.conf (would also 1067 affect ports which do not use GNU make and do not override the 1068 compile targets) or in the kernel config (via "makeoptions 1069 WITH_CTF=yes"). 1070 When WITH_CTF was specified there before this was silently ignored, 1071 so make sure that WITH_CTF is not used in places which could lead 1072 to unwanted behavior. 1073 107420100311: 1075 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1076 to allow 32-bit compatibility on non-x86 platforms. All kernel 1077 configurations on amd64 and ia64 platforms using these options must 1078 be modified accordingly. 1079 108020100113: 1081 The utmp user accounting database has been replaced with utmpx, 1082 the user accounting interface standardized by POSIX. 1083 Unfortunately the semantics of utmp and utmpx don't match, 1084 making it practically impossible to support both interfaces. 1085 The user accounting database is used by tools like finger(1), 1086 last(1), talk(1), w(1) and ac(8). 1087 1088 All applications in the base system use utmpx. This means only 1089 local binaries (e.g. from the ports tree) may still use these 1090 utmp database files. These applications must be rebuilt to make 1091 use of utmpx. 1092 1093 After the system has been upgraded, it is safe to remove the old 1094 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1095 assuming their contents is of no importance anymore. Old wtmp 1096 databases can only be used by last(1) and ac(8) after they have 1097 been converted to the new format using wtmpcvt(1). 1098 109920100108: 1100 Introduce the kernel thread "deadlock resolver" (which can be enabled 1101 via the DEADLKRES option, see NOTES for more details) and the 1102 sleepq_type() function for sleepqueues. 1103 110420091202: 1105 The rc.firewall and rc.firewall6 were unified, and 1106 rc.firewall6 and rc.d/ip6fw were removed. 1107 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1108 variables are obsoleted. Instead, the following new rc 1109 variables are added to rc.d/ipfw: 1110 1111 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1112 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1113 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1114 1115 The meanings correspond to the relevant IPv4 variables. 1116 111720091125: 1118 8.0-RELEASE. 1119 112020091113: 1121 The default terminal emulation for syscons(4) has been changed 1122 from cons25 to xterm on all platforms except pc98. This means 1123 that the /etc/ttys file needs to be updated to ensure correct 1124 operation of applications on the console. 1125 1126 The terminal emulation style can be toggled per window by using 1127 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1128 options can be used to change the compile-time default back to 1129 cons25. 1130 1131 To prevent graphical artifacts, make sure the TERM environment 1132 variable is set to match the terminal emulation that is being 1133 performed by syscons(4). 1134 113520091109: 1136 The layout of the structure ieee80211req_scan_result has changed. 1137 Applications that require wireless scan results (e.g. ifconfig(8)) 1138 from net80211 need to be recompiled. 1139 1140 Applications such as wpa_supplicant(8) may require a full world 1141 build without using NO_CLEAN in order to get synchronized with the 1142 new structure. 1143 114420091025: 1145 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1146 There's one kernel module for each firmware. Adding "device iwnfw" 1147 to the kernel configuration file means including all three firmware 1148 images inside the kernel. If you want to include just the one for 1149 your wireless card, use the devices iwn4965fw, iwn5000fw or 1150 iwn5150fw. 1151 115220090926: 1153 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1154 into rc.d/netif. The changes are the following: 1155 1156 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1157 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1158 Note that both variables need the "inet6" keyword at the head. 1159 1160 Do not set $ipv6_network_interfaces manually if you do not 1161 understand what you are doing. It is not needed in most cases. 1162 1163 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1164 they are obsolete. 1165 1166 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1167 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1168 1169 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1170 all configured interfaces have "inet6 accept_rtadv" in the 1171 $ifconfig_IF_ipv6. These are for backward compatibility. 1172 1173 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1174 functionality of interfaces with no corresponding 1175 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1176 and the default address selection policy of ip6addrctl(8) 1177 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1178 Note that if you want to configure IPv6 functionality on the 1179 disabled interfaces after boot, first you need to clear the flag by 1180 using ifconfig(8) like: 1181 1182 ifconfig em0 inet6 -ifdisabled 1183 1184 If YES, the default address selection policy is set as 1185 IPv6-preferred. 1186 1187 The default value of $ipv6_prefer is NO. 1188 1189 4. If your system need to receive Router Advertisement messages, 1190 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1191 scripts automatically invoke rtsol(8) when the interface becomes 1192 UP. The Router Advertisement messages are used for SLAAC 1193 (State-Less Address AutoConfiguration). 1194 119520090922: 1196 802.11s D3.03 support was committed. This is incompatible with the 1197 previous code, which was based on D3.0. 1198 119920090912: 1200 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1201 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1202 control whether accepting Router Advertisement messages or not. 1203 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1204 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1205 The ifconfig(8) utility now supports these flags. 1206 120720090910: 1208 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1209 mount(8) and -a option for df(1) to see them. 1210 121120090825: 1212 The old tunable hw.bus.devctl_disable has been superseded by 1213 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1214 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1215 is 1000. 1216 121720090813: 1218 Remove the option STOP_NMI. The default action is now to use NMI only 1219 for KDB via the newly introduced function stop_cpus_hard() and 1220 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1221 122220090803: 1223 The stable/8 branch created in subversion. This corresponds to the 1224 RELENG_8 branch in CVS. 1225 122620090719: 1227 Bump the shared library version numbers for all libraries that do not 1228 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1229 __FreeBSD_version to 800105. 1230 123120090714: 1232 Due to changes in the implementation of virtual network stack support, 1233 all network-related kernel modules must be recompiled. As this change 1234 breaks the ABI, bump __FreeBSD_version to 800104. 1235 123620090713: 1237 The TOE interface to the TCP syncache has been modified to remove 1238 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1239 The cxgb driver is the only TOE consumer affected by this change, and 1240 needs to be recompiled along with the kernel. As this change breaks 1241 the ABI, bump __FreeBSD_version to 800103. 1242 124320090712: 1244 Padding has been added to struct tcpcb, sackhint and tcpstat in 1245 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1246 maintaining the ABI. However, this change breaks the ABI, so bump 1247 __FreeBSD_version to 800102. User space tools that rely on the size of 1248 any of these structs (e.g. sockstat) need to be recompiled. 1249 125020090630: 1251 The NFS_LEGACYRPC option has been removed along with the old kernel 1252 RPC implementation that this option selected. Kernel configurations 1253 may need to be adjusted. 1254 125520090629: 1256 The network interface device nodes at /dev/net/<interface> have been 1257 removed. All ioctl operations can be performed the normal way using 1258 routing sockets. The kqueue functionality can generally be replaced 1259 with routing sockets. 1260 126120090628: 1262 The documentation from the FreeBSD Documentation Project (Handbook, 1263 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1264 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1265 126620090624: 1267 The ABI of various structures related to the SYSV IPC API have been 1268 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1269 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1270 800100. 1271 127220090622: 1273 Layout of struct vnet has changed as routing related variables were 1274 moved to their own Vimage module. Modules need to be recompiled. Bump 1275 __FreeBSD_version to 800099. 1276 127720090619: 1278 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1279 respectively. As long as no more than 16 groups per process are used, 1280 no changes should be visible. When more than 16 groups are used, old 1281 binaries may fail if they call getgroups() or getgrouplist() with 1282 statically sized storage. Recompiling will work around this, but 1283 applications should be modified to use dynamically allocated storage 1284 for group arrays as POSIX.1-2008 does not cap an implementation's 1285 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1286 1287 NFS and portalfs mounts may also be affected as the list of groups is 1288 truncated to 16. Users of NFS who use more than 16 groups, should 1289 take care that negative group permissions are not used on the exported 1290 file systems as they will not be reliable unless a GSSAPI based 1291 authentication method is used. 1292 129320090616: 1294 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1295 option compiles in the support for adaptive spinning for lockmgrs 1296 which want to enable it. The lockinit() function now accepts the flag 1297 LK_ADAPTIVE in order to make the lock object subject to adaptive 1298 spinning when both held in write and read mode. 1299 130020090613: 1301 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1302 changed. User applications that use this ioctl need to be rebuilt. 1303 130420090611: 1305 The layout of struct thread has changed. Kernel and modules need to 1306 be rebuilt. 1307 130820090608: 1309 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1310 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1311 131220090602: 1313 window(1) has been removed from the base system. It can now be 1314 installed from ports. The port is called misc/window. 1315 131620090601: 1317 The way we are storing and accessing `routing table' entries has 1318 changed. Programs reading the FIB, like netstat, need to be 1319 re-compiled. 1320 132120090601: 1322 A new netisr implementation has been added for FreeBSD 8. Network 1323 file system modules, such as igmp, ipdivert, and others, should be 1324 rebuilt. 1325 Bump __FreeBSD_version to 800096. 1326 132720090530: 1328 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1329 more valid. 1330 133120090530: 1332 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1333 Bump __FreeBSD_version to 800094. 1334 133520090529: 1336 Add mnt_xflag field to 'struct mount'. File system modules need to be 1337 rebuilt. 1338 Bump __FreeBSD_version to 800093. 1339 134020090528: 1341 The compiling option ADAPTIVE_SX has been retired while it has been 1342 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1343 The KPI for sx_init_flags() changes as accepting flags: 1344 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1345 been introduced in order to handle the reversed logic. 1346 Bump __FreeBSD_version to 800092. 1347 134820090527: 1349 Add support for hierarchical jails. Remove global securelevel. 1350 Bump __FreeBSD_version to 800091. 1351 135220090523: 1353 The layout of struct vnet_net has changed, therefore modules 1354 need to be rebuilt. 1355 Bump __FreeBSD_version to 800090. 1356 135720090523: 1358 The newly imported zic(8) produces a new format in the output. Please 1359 run tzsetup(8) to install the newly created data to /etc/localtime. 1360 136120090520: 1362 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1363 hw.usb.* and is now consistent again with previous releases. 1364 136520090520: 1366 802.11 monitor mode support was revised and driver api's were changed. 1367 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1368 of DLT_IEEE802_11. No user-visible data structures were changed but 1369 applications that use DLT_IEEE802_11 may require changes. 1370 Bump __FreeBSD_version to 800088. 1371 137220090430: 1373 The layout of the following structs has changed: sysctl_oid, 1374 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1375 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1376 panics may be experienced. World rebuild is required for 1377 correctly checking networking state from userland. 1378 Bump __FreeBSD_version to 800085. 1379 138020090429: 1381 MLDv2 and Source-Specific Multicast (SSM) have been merged 1382 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1383 The implementation of SSM within FreeBSD's IPv6 stack closely 1384 follows the IPv4 implementation. 1385 1386 For kernel developers: 1387 1388 * The most important changes are that the ip6_output() and 1389 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1390 and this lock has been downgraded to a non-recursive mutex. 1391 1392 * As with the changes to the IPv4 stack to support SSM, filtering 1393 of inbound multicast traffic must now be performed by transport 1394 protocols within the IPv6 stack. This does not apply to TCP and 1395 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1396 1397 * The KPIs used by IPv6 multicast are similar to those used by 1398 the IPv4 stack, with the following differences: 1399 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1400 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1401 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1402 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1403 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1404 for MLDv1 have an additional 'timer' argument which is used to 1405 jitter the initial membership report for the solicited-node 1406 multicast membership on-link. 1407 * This is not strictly needed for MLDv2, which already jitters 1408 its report transmissions. However, the 'timer' argument is 1409 preserved in case MLDv1 is active on the interface. 1410 1411 * The KAME linked-list based IPv6 membership implementation has 1412 been refactored to use a vector similar to that used by the IPv4 1413 stack. 1414 Code which maintains a list of its own multicast memberships 1415 internally, e.g. carp, has been updated to reflect the new 1416 semantics. 1417 1418 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1419 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1420 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1421 implementation constraint which needs to be addressed in HEAD. 1422 1423 For application developers: 1424 1425 * The changes are broadly similar to those made for the IPv4 1426 stack. 1427 1428 * The use of IPv4 and IPv6 multicast socket options on the same 1429 socket, using mapped addresses, HAS NOT been tested or supported. 1430 1431 * There are a number of issues with the implementation of various 1432 IPv6 multicast APIs which need to be resolved in the API surface 1433 before the implementation is fully compatible with KAME userland 1434 use, and these are mostly to do with interface index treatment. 1435 1436 * The literature available discusses the use of either the delta / ASM 1437 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1438 using setsourcefilter(3)/getsourcefilter(3). For more information 1439 please refer to RFC 3768, 'Socket Interface Extensions for 1440 Multicast Source Filters'. 1441 1442 * Applications which use the published RFC 3678 APIs should be fine. 1443 1444 For systems administrators: 1445 1446 * The mtest(8) utility has been refactored to support IPv6, in 1447 addition to IPv4. Interface addresses are no longer accepted 1448 as arguments, their names must be used instead. The utility 1449 will map the interface name to its first IPv4 address as 1450 returned by getifaddrs(3). 1451 1452 * The ifmcstat(8) utility has also been updated to print the MLDv2 1453 endpoint state and source filter lists via sysctl(3). 1454 1455 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1456 loopback of IPv6 multicast datagrams by default; it defaults to 1 1457 to preserve the existing behaviour. Disabling multicast loopback is 1458 recommended for optimal system performance. 1459 1460 * The IPv6 MROUTING code has been changed to examine this sysctl 1461 instead of attempting to perform a group lookup before looping 1462 back forwarded datagrams. 1463 1464 Bump __FreeBSD_version to 800084. 1465 146620090422: 1467 Implement low-level Bluetooth HCI API. 1468 Bump __FreeBSD_version to 800083. 1469 147020090419: 1471 The layout of struct malloc_type, used by modules to register new 1472 memory allocation types, has changed. Most modules will need to 1473 be rebuilt or panics may be experienced. 1474 Bump __FreeBSD_version to 800081. 1475 147620090415: 1477 Anticipate overflowing inp_flags - add inp_flags2. 1478 This changes most offsets in inpcb, so checking v4 connection 1479 state will require a world rebuild. 1480 Bump __FreeBSD_version to 800080. 1481 148220090415: 1483 Add an llentry to struct route and struct route_in6. Modules 1484 embedding a struct route will need to be recompiled. 1485 Bump __FreeBSD_version to 800079. 1486 148720090414: 1488 The size of rt_metrics_lite and by extension rtentry has changed. 1489 Networking administration apps will need to be recompiled. 1490 The route command now supports show as an alias for get, weighting 1491 of routes, sticky and nostick flags to alter the behavior of stateful 1492 load balancing. 1493 Bump __FreeBSD_version to 800078. 1494 149520090408: 1496 Do not use Giant for kbdmux(4) locking. This is wrong and 1497 apparently causing more problems than it solves. This will 1498 re-open the issue where interrupt handlers may race with 1499 kbdmux(4) in polling mode. Typical symptoms include (but 1500 not limited to) duplicated and/or missing characters when 1501 low level console functions (such as gets) are used while 1502 interrupts are enabled (for example geli password prompt, 1503 mountroot prompt etc.). Disabling kbdmux(4) may help. 1504 150520090407: 1506 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1507 kernel modules referencing any of the above need to be recompiled. 1508 Bump __FreeBSD_version to 800075. 1509 151020090320: 1511 GEOM_PART has become the default partition slicer for storage devices, 1512 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1513 introduces some changes: 1514 1515 MSDOS/EBR: the devices created from MSDOS extended partition entries 1516 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1517 to devices with offset-based names. fstabs may need to be modified. 1518 1519 BSD: the "geometry does not match label" warning is harmless in most 1520 cases but it points to problems in file system misalignment with 1521 disk geometry. The "c" partition is now implicit, covers the whole 1522 top-level drive and cannot be (mis)used by users. 1523 1524 General: Kernel dumps are now not allowed to be written to devices 1525 whose partition types indicate they are meant to be used for file 1526 systems (or, in case of MSDOS partitions, as something else than 1527 the "386BSD" type). 1528 1529 Most of these changes date approximately from 200812. 1530 153120090319: 1532 The uscanner(4) driver has been removed from the kernel. This follows 1533 Linux removing theirs in 2.6 and making libusb the default interface 1534 (supported by sane). 1535 153620090319: 1537 The multicast forwarding code has been cleaned up. netstat(1) 1538 only relies on KVM now for printing bandwidth upcall meters. 1539 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1540 ip6_mroute_mod respectively. The config(5) options for statically 1541 compiling this code remain the same, i.e. 'options MROUTING'. 1542 154320090315: 1544 Support for the IFF_NEEDSGIANT network interface flag has been 1545 removed, which means that non-MPSAFE network device drivers are no 1546 longer supported. In particular, if_ar, if_sr, and network device 1547 drivers from the old (legacy) USB stack can no longer be built or 1548 used. 1549 155020090313: 1551 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1552 a bunch of new language catalog files have also been added. 1553 This means that some common libc messages are now localized and 1554 they depend on the LC_MESSAGES environmental variable. 1555 155620090313: 1557 The k8temp(4) driver has been renamed to amdtemp(4) since 1558 support for Family 10 and Family 11 CPU families was added. 1559 156020090309: 1561 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1562 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1563 1564 For kernel developers, the most important changes are that the 1565 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1566 and this lock has been downgraded to a non-recursive mutex. 1567 1568 Transport protocols (UDP, Raw IP) are now responsible for filtering 1569 inbound multicast traffic according to group membership and source 1570 filters. The imo_multicast_filter() KPI exists for this purpose. 1571 Transports which do not use multicast (SCTP, TCP) already reject 1572 multicast by default. Forwarding and receive performance may improve 1573 as a mutex acquisition is no longer needed in the ip_input() 1574 low-level input path. in_addmulti() and in_delmulti() are shimmed 1575 to new KPIs which exist to support SSM in-kernel. 1576 1577 For application developers, it is recommended that loopback of 1578 multicast datagrams be disabled for best performance, as this 1579 will still cause the lock to be taken for each looped-back 1580 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1581 be tuned to 0 to disable loopback by default; it defaults to 1 1582 to preserve the existing behaviour. 1583 1584 For systems administrators, to obtain best performance with 1585 multicast reception and multiple groups, it is always recommended 1586 that a card with a suitably precise hash filter is used. Hash 1587 collisions will still result in the lock being taken within the 1588 transport protocol input path to check group membership. 1589 1590 If deploying FreeBSD in an environment with IGMP snooping switches, 1591 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1592 enabled; this forces 224.0.0.0/24 group membership to be announced 1593 via IGMP. 1594 1595 The size of 'struct igmpstat' has changed; netstat needs to be 1596 recompiled to reflect this. 1597 Bump __FreeBSD_version to 800070. 1598 159920090309: 1600 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1601 updated to use it. This requires a buildworld/installworld in order to 1602 update the library and dependencies (usbconfig, etc). Its advisable to 1603 rebuild all ports which uses libusb. More specific directions are given 1604 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1605 libusb are no longer required and can be removed. 1606 160720090302: 1608 A workaround is committed to allow the creation of System V shared 1609 memory segment of size > 2 GB on the 64-bit architectures. 1610 Due to a limitation of the existing ABI, the shm_segsz member 1611 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1612 wrong for large segments. Note that limits must be explicitly 1613 raised to allow such segments to be created. 1614 161520090301: 1616 The layout of struct ifnet has changed, requiring a rebuild of all 1617 network device driver modules. 1618 161920090227: 1620 The /dev handling for the new USB stack has changed, a 1621 buildworld/installworld is required for libusb20. 1622 162320090223: 1624 The new USB2 stack has now been permanently moved in and all kernel and 1625 module names reverted to their previous values (eg, usb, ehci, ohci, 1626 ums, ...). The old usb stack can be compiled in by prefixing the name 1627 with the letter 'o', the old usb modules have been removed. 1628 Updating entry 20090216 for xorg and 20090215 for libmap may still 1629 apply. 1630 163120090217: 1632 The rc.conf(5) option if_up_delay has been renamed to 1633 defaultroute_delay to better reflect its purpose. If you have 1634 customized this setting in /etc/rc.conf you need to update it to 1635 use the new name. 1636 163720090216: 1638 xorg 7.4 wants to configure its input devices via hald which does not 1639 yet work with USB2. If the keyboard/mouse does not work in xorg then 1640 add 1641 Option "AllowEmptyInput" "off" 1642 to your ServerLayout section. This will cause X to use the configured 1643 kbd and mouse sections from your xorg.conf. 1644 164520090215: 1646 The GENERIC kernels for all architectures now default to the new USB2 1647 stack. No kernel config options or code have been removed so if a 1648 problem arises please report it and optionally revert to the old USB 1649 stack. If you are loading USB kernel modules or have a custom kernel 1650 that includes GENERIC then ensure that usb names are also changed over, 1651 eg uftdi -> usb2_serial_ftdi. 1652 1653 Older programs linked against the ports libusb 0.1 need to be 1654 redirected to the new stack's libusb20. /etc/libmap.conf can 1655 be used for this: 1656 # Map old usb library to new one for usb2 stack 1657 libusb-0.1.so.8 libusb20.so.1 1658 165920090209: 1660 All USB ethernet devices now attach as interfaces under the name ueN 1661 (eg. ue0). This is to provide a predictable name as vendors often 1662 change usb chipsets in a product without notice. 1663 166420090203: 1665 The ichsmb(4) driver has been changed to require SMBus slave 1666 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1667 All of the other SMBus controller drivers require left-justified 1668 slave addresses, so this change makes all the drivers provide the 1669 same interface. 1670 167120090201: 1672 INET6 statistics (struct ip6stat) was updated. 1673 netstat(1) needs to be recompiled. 1674 167520090119: 1676 NTFS has been removed from GENERIC kernel on amd64 to match 1677 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1678 will load ntfs.ko module automatically when NTFS support is 1679 actually needed, unless ntfs.ko is not installed or security 1680 level prohibits loading kernel modules. If either is the case, 1681 "options NTFS" has to be added into kernel config. 1682 168320090115: 1684 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1685 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1686 800061. User space tools that rely on the size of struct tcpcb in 1687 tcp_var.h (e.g. sockstat) need to be recompiled. 1688 168920081225: 1690 ng_tty(4) module updated to match the new TTY subsystem. 1691 Due to API change, user-level applications must be updated. 1692 New API support added to mpd5 CVS and expected to be present 1693 in next mpd5.3 release. 1694 169520081219: 1696 With __FreeBSD_version 800060 the makefs tool is part of 1697 the base system (it was a port). 1698 169920081216: 1700 The afdata and ifnet locks have been changed from mutexes to 1701 rwlocks, network modules will need to be re-compiled. 1702 170320081214: 1704 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1705 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1706 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1707 architecture and 40 bytes on 64-bit architecture. The userland 1708 applications "arp" and "ndp" have been updated accordingly. 1709 The output from "netstat -r" shows only routing entries and 1710 none of the L2 information. 1711 171220081130: 1713 __FreeBSD_version 800057 marks the switchover from the 1714 binary ath hal to source code. Users must add the line: 1715 1716 options AH_SUPPORT_AR5416 1717 1718 to their kernel config files when specifying: 1719 1720 device ath_hal 1721 1722 The ath_hal module no longer exists; the code is now compiled 1723 together with the driver in the ath module. It is now 1724 possible to tailor chip support (i.e. reduce the set of chips 1725 and thereby the code size); consult ath_hal(4) for details. 1726 172720081121: 1728 __FreeBSD_version 800054 adds memory barriers to 1729 <machine/atomic.h>, new interfaces to ifnet to facilitate 1730 multiple hardware transmit queues for cards that support 1731 them, and a lock-less ring-buffer implementation to 1732 enable drivers to more efficiently manage queueing of 1733 packets. 1734 173520081117: 1736 A new version of ZFS (version 13) has been merged to -HEAD. 1737 This version has zpool attribute "listsnapshots" off by 1738 default, which means "zfs list" does not show snapshots, 1739 and is the same as Solaris behavior. 1740 174120081028: 1742 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1743 174420081009: 1745 The uhci, ohci, ehci and slhci USB Host controller drivers have 1746 been put into separate modules. If you load the usb module 1747 separately through loader.conf you will need to load the 1748 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1749 controller add the following to loader.conf: 1750 1751 uhci_load="YES" 1752 ehci_load="YES" 1753 175420081009: 1755 The ABI used by the PMC toolset has changed. Please keep 1756 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1757 sync. 1758 175920081009: 1760 atapci kernel module now includes only generic PCI ATA 1761 driver. AHCI driver moved to ataahci kernel module. 1762 All vendor-specific code moved into separate kernel modules: 1763 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1764 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1765 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1766 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1767 176820080820: 1769 The TTY subsystem of the kernel has been replaced by a new 1770 implementation, which provides better scalability and an 1771 improved driver model. Most common drivers have been migrated to 1772 the new TTY subsystem, while others have not. The following 1773 drivers have not yet been ported to the new TTY layer: 1774 1775 PCI/ISA: 1776 cy, digi, rc, rp, sio 1777 1778 USB: 1779 ubser, ucycom 1780 1781 Line disciplines: 1782 ng_h4, ng_tty, ppp, sl, snp 1783 1784 Adding these drivers to your kernel configuration file shall 1785 cause compilation to fail. 1786 178720080818: 1788 ntpd has been upgraded to 4.2.4p5. 1789 179020080801: 1791 OpenSSH has been upgraded to 5.1p1. 1792 1793 For many years, FreeBSD's version of OpenSSH preferred DSA 1794 over RSA for host and user authentication keys. With this 1795 upgrade, we've switched to the vendor's default of RSA over 1796 DSA. This may cause upgraded clients to warn about unknown 1797 host keys even for previously known hosts. Users should 1798 follow the usual procedure for verifying host keys before 1799 accepting the RSA key. 1800 1801 This can be circumvented by setting the "HostKeyAlgorithms" 1802 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1803 command line. 1804 1805 Please note that the sequence of keys offered for 1806 authentication has been changed as well. You may want to 1807 specify IdentityFile in a different order to revert this 1808 behavior. 1809 181020080713: 1811 The sio(4) driver has been removed from the i386 and amd64 1812 kernel configuration files. This means uart(4) is now the 1813 default serial port driver on those platforms as well. 1814 1815 To prevent collisions with the sio(4) driver, the uart(4) driver 1816 uses different names for its device nodes. This means the 1817 onboard serial port will now most likely be called "ttyu0" 1818 instead of "ttyd0". You may need to reconfigure applications to 1819 use the new device names. 1820 1821 When using the serial port as a boot console, be sure to update 1822 /boot/device.hints and /etc/ttys before booting the new kernel. 1823 If you forget to do so, you can still manually specify the hints 1824 at the loader prompt: 1825 1826 set hint.uart.0.at="isa" 1827 set hint.uart.0.port="0x3F8" 1828 set hint.uart.0.flags="0x10" 1829 set hint.uart.0.irq="4" 1830 boot -s 1831 183220080609: 1833 The gpt(8) utility has been removed. Use gpart(8) to partition 1834 disks instead. 1835 183620080603: 1837 The version that Linuxulator emulates was changed from 2.4.2 1838 to 2.6.16. If you experience any problems with Linux binaries 1839 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1840 if it fixes the problem contact emulation mailing list. 1841 184220080525: 1843 ISDN4BSD (I4B) was removed from the src tree. You may need to 1844 update a your kernel configuration and remove relevant entries. 1845 184620080509: 1847 I have checked in code to support multiple routing tables. 1848 See the man pages setfib(1) and setfib(2). 1849 This is a hopefully backwards compatible version, 1850 but to make use of it you need to compile your kernel 1851 with options ROUTETABLES=2 (or more up to 16). 1852 185320080420: 1854 The 802.11 wireless support was redone to enable multi-bss 1855 operation on devices that are capable. The underlying device 1856 is no longer used directly but instead wlanX devices are 1857 cloned with ifconfig. This requires changes to rc.conf files. 1858 For example, change: 1859 ifconfig_ath0="WPA DHCP" 1860 to 1861 wlans_ath0=wlan0 1862 ifconfig_wlan0="WPA DHCP" 1863 see rc.conf(5) for more details. In addition, mergemaster of 1864 /etc/rc.d is highly recommended. Simultaneous update of userland 1865 and kernel wouldn't hurt either. 1866 1867 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1868 modules were merged into the base wlan module. All references 1869 to these modules (e.g. in kernel config files) must be removed. 1870 187120080408: 1872 psm(4) has gained write(2) support in native operation level. 1873 Arbitrary commands can be written to /dev/psm%d and status can 1874 be read back from it. Therefore, an application is responsible 1875 for status validation and error recovery. It is a no-op in 1876 other operation levels. 1877 187820080312: 1879 Support for KSE threading has been removed from the kernel. To 1880 run legacy applications linked against KSE libmap.conf may 1881 be used. The following libmap.conf may be used to ensure 1882 compatibility with any prior release: 1883 1884 libpthread.so.1 libthr.so.1 1885 libpthread.so.2 libthr.so.2 1886 libkse.so.3 libthr.so.3 1887 188820080301: 1889 The layout of struct vmspace has changed. This affects libkvm 1890 and any executables that link against libkvm and use the 1891 kvm_getprocs() function. In particular, but not exclusively, 1892 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1893 The effects are minimal, but it's advisable to upgrade world 1894 nonetheless. 1895 189620080229: 1897 The latest em driver no longer has support in it for the 1898 82575 adapter, this is now moved to the igb driver. The 1899 split was done to make new features that are incompatible 1900 with older hardware easier to do. 1901 190220080220: 1903 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1904 likewise the kernel option is now GEOM_LINUX_LVM. 1905 190620080211: 1907 The default NFS mount mode has changed from UDP to TCP for 1908 increased reliability. If you rely on (insecurely) NFS 1909 mounting across a firewall you may need to update your 1910 firewall rules. 1911 191220080208: 1913 Belatedly note the addition of m_collapse for compacting 1914 mbuf chains. 1915 191620080126: 1917 The fts(3) structures have been changed to use adequate 1918 integer types for their members and so to be able to cope 1919 with huge file trees. The old fts(3) ABI is preserved 1920 through symbol versioning in libc, so third-party binaries 1921 using fts(3) should still work, although they will not take 1922 advantage of the extended types. At the same time, some 1923 third-party software might fail to build after this change 1924 due to unportable assumptions made in its source code about 1925 fts(3) structure members. Such software should be fixed 1926 by its vendor or, in the worst case, in the ports tree. 1927 FreeBSD_version 800015 marks this change for the unlikely 1928 case that a portable fix is impossible. 1929 193020080123: 1931 To upgrade to -current after this date, you must be running 1932 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1933 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1934 193520071128: 1936 The ADAPTIVE_GIANT kernel option has been retired because its 1937 functionality is the default now. 1938 193920071118: 1940 The AT keyboard emulation of sunkbd(4) has been turned on 1941 by default. In order to make the special symbols of the Sun 1942 keyboards driven by sunkbd(4) work under X these now have 1943 to be configured the same way as Sun USB keyboards driven 1944 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1945 1946 Option "XkbLayout" "us" 1947 Option "XkbRules" "xorg" 1948 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1949 195020071024: 1951 It has been decided that it is desirable to provide ABI 1952 backwards compatibility to the FreeBSD 4/5/6 versions of the 1953 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1954 broken with the introduction of PCI domain support (see the 1955 20070930 entry). Unfortunately, this required the ABI of 1956 PCIOCGETCONF to be broken again in order to be able to 1957 provide backwards compatibility to the old version of that 1958 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1959 again. As for prominent ports this affects neither pciutils 1960 nor xorg-server this time, the hal port needs to be rebuilt 1961 however. 1962 196320071020: 1964 The misnamed kthread_create() and friends have been renamed 1965 to kproc_create() etc. Many of the callers already 1966 used kproc_start().. 1967 I will return kthread_create() and friends in a while 1968 with implementations that actually create threads, not procs. 1969 Renaming corresponds with version 800002. 1970 197120071010: 1972 RELENG_7 branched. 1973 1974COMMON ITEMS: 1975 1976 General Notes 1977 ------------- 1978 Avoid using make -j when upgrading. While generally safe, there are 1979 sometimes problems using -j to upgrade. If your upgrade fails with 1980 -j, please try again without -j. From time to time in the past there 1981 have been problems using -j with buildworld and/or installworld. This 1982 is especially true when upgrading between "distant" versions (eg one 1983 that cross a major release boundary or several minor releases, or when 1984 several months have passed on the -current branch). 1985 1986 Sometimes, obscure build problems are the result of environment 1987 poisoning. This can happen because the make utility reads its 1988 environment when searching for values for global variables. To run 1989 your build attempts in an "environmental clean room", prefix all make 1990 commands with 'env -i '. See the env(1) manual page for more details. 1991 1992 When upgrading from one major version to another it is generally best 1993 to upgrade to the latest code in the currently installed branch first, 1994 then do an upgrade to the new branch. This is the best-tested upgrade 1995 path, and has the highest probability of being successful. Please try 1996 this approach before reporting problems with a major version upgrade. 1997 1998 When upgrading a live system, having a root shell around before 1999 installing anything can help undo problems. Not having a root shell 2000 around can lead to problems if pam has changed too much from your 2001 starting point to allow continued authentication after the upgrade. 2002 2003 ZFS notes 2004 --------- 2005 When upgrading the boot ZFS pool to a new version, always follow 2006 these two steps: 2007 2008 1.) recompile and reinstall the ZFS boot loader and boot block 2009 (this is part of "make buildworld" and "make installworld") 2010 2011 2.) update the ZFS boot block on your boot drive 2012 2013 The following example updates the ZFS boot block on the first 2014 partition (freebsd-boot) of a GPT partitioned drive ad0: 2015 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2016 2017 Non-boot pools do not need these updates. 2018 2019 To build a kernel 2020 ----------------- 2021 If you are updating from a prior version of FreeBSD (even one just 2022 a few days old), you should follow this procedure. It is the most 2023 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2024 2025 make kernel-toolchain 2026 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2027 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2028 2029 To test a kernel once 2030 --------------------- 2031 If you just want to boot a kernel once (because you are not sure 2032 if it works, or if you want to boot a known bad kernel to provide 2033 debugging information) run 2034 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2035 nextboot -k testkernel 2036 2037 To just build a kernel when you know that it won't mess you up 2038 -------------------------------------------------------------- 2039 This assumes you are already running a CURRENT system. Replace 2040 ${arch} with the architecture of your machine (e.g. "i386", 2041 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2042 2043 cd src/sys/${arch}/conf 2044 config KERNEL_NAME_HERE 2045 cd ../compile/KERNEL_NAME_HERE 2046 make depend 2047 make 2048 make install 2049 2050 If this fails, go to the "To build a kernel" section. 2051 2052 To rebuild everything and install it on the current system. 2053 ----------------------------------------------------------- 2054 # Note: sometimes if you are running current you gotta do more than 2055 # is listed here if you are upgrading from a really old current. 2056 2057 <make sure you have good level 0 dumps> 2058 make buildworld 2059 make kernel KERNCONF=YOUR_KERNEL_HERE 2060 [1] 2061 <reboot in single user> [3] 2062 mergemaster -p [5] 2063 make installworld 2064 mergemaster -i [4] 2065 make delete-old [6] 2066 <reboot> 2067 2068 To cross-install current onto a separate partition 2069 -------------------------------------------------- 2070 # In this approach we use a separate partition to hold 2071 # current's root, 'usr', and 'var' directories. A partition 2072 # holding "/", "/usr" and "/var" should be about 2GB in 2073 # size. 2074 2075 <make sure you have good level 0 dumps> 2076 <boot into -stable> 2077 make buildworld 2078 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2079 <maybe newfs current's root partition> 2080 <mount current's root partition on directory ${CURRENT_ROOT}> 2081 make installworld DESTDIR=${CURRENT_ROOT} 2082 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2083 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2084 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2085 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2086 <reboot into current> 2087 <do a "native" rebuild/install as described in the previous section> 2088 <maybe install compatibility libraries from ports/misc/compat*> 2089 <reboot> 2090 2091 2092 To upgrade in-place from stable to current 2093 ---------------------------------------------- 2094 <make sure you have good level 0 dumps> 2095 make buildworld [9] 2096 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2097 [1] 2098 <reboot in single user> [3] 2099 mergemaster -p [5] 2100 make installworld 2101 mergemaster -i [4] 2102 make delete-old [6] 2103 <reboot> 2104 2105 Make sure that you've read the UPDATING file to understand the 2106 tweaks to various things you need. At this point in the life 2107 cycle of current, things change often and you are on your own 2108 to cope. The defaults can also change, so please read ALL of 2109 the UPDATING entries. 2110 2111 Also, if you are tracking -current, you must be subscribed to 2112 freebsd-current@freebsd.org. Make sure that before you update 2113 your sources that you have read and understood all the recent 2114 messages there. If in doubt, please track -stable which has 2115 much fewer pitfalls. 2116 2117 [1] If you have third party modules, such as vmware, you 2118 should disable them at this point so they don't crash your 2119 system on reboot. 2120 2121 [3] From the bootblocks, boot -s, and then do 2122 fsck -p 2123 mount -u / 2124 mount -a 2125 cd src 2126 adjkerntz -i # if CMOS is wall time 2127 Also, when doing a major release upgrade, it is required that 2128 you boot into single user mode to do the installworld. 2129 2130 [4] Note: This step is non-optional. Failure to do this step 2131 can result in a significant reduction in the functionality of the 2132 system. Attempting to do it by hand is not recommended and those 2133 that pursue this avenue should read this file carefully, as well 2134 as the archives of freebsd-current and freebsd-hackers mailing lists 2135 for potential gotchas. The -U option is also useful to consider. 2136 See mergemaster(8) for more information. 2137 2138 [5] Usually this step is a noop. However, from time to time 2139 you may need to do this if you get unknown user in the following 2140 step. It never hurts to do it all the time. You may need to 2141 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2142 install) after the buildworld before this step if you last updated 2143 from current before 20130425 or from -stable before 20130430. 2144 2145 [6] This only deletes old files and directories. Old libraries 2146 can be deleted by "make delete-old-libs", but you have to make 2147 sure that no program is using those libraries anymore. 2148 2149 [8] In order to have a kernel that can run the 4.x binaries needed to 2150 do an installworld, you must include the COMPAT_FREEBSD4 option in 2151 your kernel. Failure to do so may leave you with a system that is 2152 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2153 required to run the 5.x binaries on more recent kernels. And so on 2154 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2155 2156 Make sure that you merge any new devices from GENERIC since the 2157 last time you updated your kernel config file. 2158 2159 [9] When checking out sources, you must include the -P flag to have 2160 cvs prune empty directories. 2161 2162 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2163 "?=" instead of the "=" assignment operator, so that buildworld can 2164 override the CPUTYPE if it needs to. 2165 2166 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2167 not on the command line, or in /etc/make.conf. buildworld will 2168 warn if it is improperly defined. 2169FORMAT: 2170 2171This file contains a list, in reverse chronological order, of major 2172breakages in tracking -current. It is not guaranteed to be a complete 2173list of such breakages, and only contains entries since October 10, 2007. 2174If you need to see UPDATING entries from before that date, you will need 2175to fetch an UPDATING file from an older FreeBSD release. 2176 2177Copyright information: 2178 2179Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2180 2181Redistribution, publication, translation and use, with or without 2182modification, in full or in part, in any form or format of this 2183document are permitted without further permission from the author. 2184 2185THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2186IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2187WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2188DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2189INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2190(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2191SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2192HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2193STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2194IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2195POSSIBILITY OF SUCH DAMAGE. 2196 2197Contact Warner Losh if you have any questions about your use of 2198this document. 2199 2200$FreeBSD: releng/10.1/UPDATING 280275 2015-03-20 07:12:02Z delphij $ 2201