UPDATING revision 280267
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 1920150319: p7 FreeBSD-SA-15:06.openssl 20 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 21 2220150225: p6 FreeBSD-SA-15:04.igmp 23 FreeBSD-EN-15:01.vt 24 FreeBSD-EN-15:02.openssl 25 FreeBSD-EN-15:03.freebsd-update 26 27 Fix integer overflow in IGMP protocol. [SA-15:04] 28 29 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 30 31 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 32 33 Fix freebsd-update libraries update ordering issue. [EN-15:03] 34 3520150127: p5 FreeBSD-SA-15:02.kmem 36 FreeBSD-SA-15:03.sctp 37 38 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 39 vulnerability. [SA-15:02] 40 41 Fix SCTP stream reset vulnerability. [SA-15:03] 42 4320150114: p4 FreeBSD-SA-15:01.openssl 44 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 45 4620141223: p3 FreeBSD-SA-14:31.ntp 47 FreeBSD-EN-14:13.freebsd-update 48 49 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 50 Fix directory deletion issue in freebsd-update. [EN-14:13] 51 5220141217: p2 FreeBSD-SA-14:30.unbound 53 Fix unbound remote denial of service vulnerability. 54 5520141210: p1 FreeBSD-SA-14:27.stdio 56 FreeBSD-SA-14:28.file 57 58 Fix buffer overflow in stdio. [SA-14:27] 59 60 Fix multiple vulnerabilities in file(1) and libmagic(3). 61 [SA-14:28] 62 6320140904: 64 The ofwfb driver, used to provide a graphics console on PowerPC when 65 using vt(4), no longer allows mmap() of all of physical memory. This 66 will prevent Xorg on PowerPC with some ATI graphics cards from 67 initializing properly unless x11-servers/xorg-server is updated to 68 1.12.4_8 or newer. 69 7020140831: 71 The libatf-c and libatf-c++ major versions were downgraded to 0 and 72 1 respectively to match the upstream numbers. They were out of 73 sync because, when they were originally added to FreeBSD, the 74 upstream versions were not respected. These libraries are private 75 and not yet built by default, so renumbering them should be a 76 non-issue. However, unclean source trees will yield broken test 77 programs once the operator executes "make delete-old-libs" after a 78 "make installworld". 79 80 Additionally, the atf-sh binary was made private by moving it into 81 /usr/libexec/. Already-built shell test programs will keep the 82 path to the old binary so they will break after "make delete-old" 83 is run. 84 85 If you are using WITH_TESTS=yes (not the default), wipe the object 86 tree and rebuild from scratch to prevent spurious test failures. 87 This is only needed once: the misnumbered libraries and misplaced 88 binaries have been added to OptionalObsoleteFiles.inc so they will 89 be removed during a clean upgrade. 90 9120140814: 92 The ixgbe tunables now match their sysctl counterparts, for example: 93 hw.ixgbe.enable_aim => hw.ix.enable_aim 94 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 95 9620140801: 97 The NFSv4.1 server committed by r269398 changes the internal 98 function call interfaces used between the NFS and krpc modules. 99 As such, __FreeBSD_version was bumped. 100 10120140729: 102 The default unbound configuration has been modified to address 103 issues with reverse lookups on networks that use private 104 address ranges. If you use the local_unbound service, run 105 "service local_unbound setup" as root to regenerate your 106 configuration, then "service local_unbound reload" to load the 107 new configuration. 108 10920140717: 110 It is no longer necessary to include the dwarf version in your DEBUG 111 options in your kernel config file. The bug that required it to be 112 placed in the config file has bene fixed. DEBUG should now just 113 contain -g. The build system will automatically update things 114 to do the right thing. 115 11620140715: 117 Several ABI breaking changes were merged to CTL and new iSCSI code. 118 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 119 iscsictl need to be rebuilt to work with a new kernel. 120 12120140708: 122 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 123 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 124 which differs from the behaviour controlled by this knob.) 125 12620140608: 127 On i386 and amd64 systems, the onifconsole flag is now set by default 128 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 129 as a login TTY if it is set in the bootloader as an active kernel 130 console. No changes in behavior should result otherwise. To revert to 131 the previous behavior, set ttyu0 to "off" in /etc/ttys. 132 13320140512: 134 Clang and llvm have been upgraded to 3.4.1 release. 135 13620140321: 137 Clang and llvm have been upgraded to 3.4 release. 138 13920140306: 140 If a Makefile in a tests/ directory was auto-generating a Kyuafile 141 instead of providing an explicit one, this would prevent such 142 Makefile from providing its own Kyuafile in the future during 143 NO_CLEAN builds. This has been fixed in the Makefiles but manual 144 intervention is needed to clean an objdir if you use NO_CLEAN: 145 # find /usr/obj -name Kyuafile | xargs rm -f 146 14720140303: 148 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 149 capability mode support. Please note that enabling the feature in 150 kernel is still highly recommended. 151 15220140227: 153 OpenSSH is now built with sandbox support, and will use sandbox as 154 the default privilege separation method. This requires Capsicum 155 capability mode support in kernel. 156 15720140216: 158 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 159 been deprecated and will not be part of FreeBSD 11.0 and later 160 releases. If you use this driver, please consider switching to 161 the nfe(4) driver instead. 162 16320140120: 164 10.0-RELEASE. 165 16620131216: 167 The behavior of gss_pseudo_random() for the krb5 mechanism 168 has changed, for applications requesting a longer random string 169 than produced by the underlying enctype's pseudo-random() function. 170 In particular, the random string produced from a session key of 171 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 172 be different at the 17th octet and later, after this change. 173 The counter used in the PRF+ construction is now encoded as a 174 big-endian integer in accordance with RFC 4402. 175 __FreeBSD_version is bumped to 1000701. 176 17720131108: 178 The WITHOUT_ATF build knob has been removed and its functionality 179 has been subsumed into the more generic WITHOUT_TESTS. If you were 180 using the former to disable the build of the ATF libraries, you 181 should change your settings to use the latter. 182 18320131031: 184 The default version of mtree is nmtree which is obtained from 185 NetBSD. The output is generally the same, but may vary 186 slightly. If you found you need identical output adding 187 "-F freebsd9" to the command line should do the trick. For the 188 time being, the old mtree is available as fmtree. 189 19020131014: 191 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 192 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 193 1.1.4_8 and verify bsdyml not linked in, before running "make 194 delete-old-libs": 195 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 196 or 197 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 198 19920131010: 200 The rc.d/jail script has been updated to support jail(8) 201 configuration file. The "jail_<jname>_*" rc.conf(5) variables 202 for per-jail configuration are automatically converted to 203 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 204 This is transparently backward compatible. See below about some 205 incompatibilities and rc.conf(5) manual page for more details. 206 207 These variables are now deprecated in favor of jail(8) configuration 208 file. One can use "rc.d/jail config <jname>" command to generate 209 a jail(8) configuration file in /var/run/jail.<jname>.conf without 210 running the jail(8) utility. The default pathname of the 211 configuration file is /etc/jail.conf and can be specified by 212 using $jail_conf or $jail_<jname>_conf variables. 213 214 Please note that jail_devfs_ruleset accepts an integer at 215 this moment. Please consider to rewrite the ruleset name 216 with an integer. 217 21820130930: 219 BIND has been removed from the base system. If all you need 220 is a local resolver, simply enable and start the local_unbound 221 service instead. Otherwise, several versions of BIND are 222 available in the ports tree. The dns/bind99 port is one example. 223 224 With this change, nslookup(1) and dig(1) are no longer in the base 225 system. Users should instead use host(1) and drill(1) which are 226 in the base system. Alternatively, nslookup and dig can 227 be obtained by installing the dns/bind-tools port. 228 22920130916: 230 With the addition of unbound(8), a new unbound user is now 231 required during installworld. "mergemaster -p" can be used to 232 add the user prior to installworld, as documented in the handbook. 233 23420130911: 235 OpenSSH is now built with DNSSEC support, and will by default 236 silently trust signed SSHFP records. This can be controlled with 237 the VerifyHostKeyDNS client configuration setting. DNSSEC support 238 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 239 24020130906: 241 The GNU Compiler Collection and C++ standard library (libstdc++) 242 are no longer built by default on platforms where clang is the system 243 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 244 options in src.conf. 245 24620130905: 247 The PROCDESC kernel option is now part of the GENERIC kernel 248 configuration and is required for the rwhod(8) to work. 249 If you are using custom kernel configuration, you should include 250 'options PROCDESC'. 251 25220130905: 253 The API and ABI related to the Capsicum framework was modified 254 in backward incompatible way. The userland libraries and programs 255 have to be recompiled to work with the new kernel. This includes the 256 following libraries and programs, but the whole buildworld is 257 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 258 kdump, procstat, rwho, rwhod, uniq. 259 26020130903: 261 AES-NI intrinsic support has been added to gcc. The AES-NI module 262 has been updated to use this support. A new gcc is required to build 263 the aesni module on both i386 and amd64. 264 26520130821: 266 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 267 Thus "device padlock_rng" and "device rdrand_rng" should be 268 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 269 27020130813: 271 WITH_ICONV has been split into two feature sets. WITH_ICONV now 272 enables just the iconv* functionality and is now on by default. 273 WITH_LIBICONV_COMPAT enables the libiconv api and link time 274 compatability. Set WITHOUT_ICONV to build the old way. 275 If you have been using WITH_ICONV before, you will very likely 276 need to turn on WITH_LIBICONV_COMPAT. 277 27820130806: 279 INVARIANTS option now enables DEBUG for code with OpenSolaris and 280 Illumos origin, including ZFS. If you have INVARIANTS in your 281 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 282 explicitly. 283 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 284 locks if WITNESS option was set. Because that generated a lot of 285 witness(9) reports and all of them were believed to be false 286 positives, this is no longer done. New option OPENSOLARIS_WITNESS 287 can be used to achieve the previous behavior. 288 28920130806: 290 Timer values in IPv6 data structures now use time_uptime instead 291 of time_second. Although this is not a user-visible functional 292 change, userland utilities which directly use them---ndp(8), 293 rtadvd(8), and rtsold(8) in the base system---need to be updated 294 to r253970 or later. 295 29620130802: 297 find -delete can now delete the pathnames given as arguments, 298 instead of only files found below them or if the pathname did 299 not contain any slashes. Formerly, the following error message 300 would result: 301 302 find: -delete: <path>: relative path potentially not safe 303 304 Deleting the pathnames given as arguments can be prevented 305 without error messages using -mindepth 1 or by changing 306 directory and passing "." as argument to find. This works in the 307 old as well as the new version of find. 308 30920130726: 310 Behavior of devfs rules path matching has been changed. 311 Pattern is now always matched against fully qualified devfs 312 path and slash characters must be explicitly matched by 313 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 314 subdirectories must be reviewed. 315 31620130716: 317 The default ARM ABI has changed to the ARM EABI. The old ABI is 318 incompatible with the ARM EABI and all programs and modules will 319 need to be rebuilt to work with a new kernel. 320 321 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 322 323 NOTE: Support for the old ABI will be removed in the future and 324 users are advised to upgrade. 325 32620130709: 327 pkg_install has been disconnected from the build if you really need it 328 you should add WITH_PKGTOOLS in your src.conf(5). 329 33020130709: 331 Most of network statistics structures were changed to be able 332 keep 64-bits counters. Thus all tools, that work with networking 333 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 334 33520130629: 336 Fix targets that run multiple make's to use && rather than ; 337 so that subsequent steps depend on success of previous. 338 339 NOTE: if building 'universe' with -j* on stable/8 or stable/9 340 it would be better to start the build using bmake, to avoid 341 overloading the machine. 342 34320130618: 344 Fix a bug that allowed a tracing process (e.g. gdb) to write 345 to a memory-mapped file in the traced process's address space 346 even if neither the traced process nor the tracing process had 347 write access to that file. 348 34920130615: 350 CVS has been removed from the base system. An exact copy 351 of the code is available from the devel/cvs port. 352 35320130613: 354 Some people report the following error after the switch to bmake: 355 356 make: illegal option -- J 357 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 358 ... 359 *** [buildworld] Error code 2 360 361 this likely due to an old instance of make in 362 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 363 which src/Makefile will use that blindly, if it exists, so if 364 you see the above error: 365 366 rm -rf `make -V MAKEPATH` 367 368 should resolve it. 369 37020130516: 371 Use bmake by default. 372 Whereas before one could choose to build with bmake via 373 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 374 make. The goal is to remove these knobs for 10-RELEASE. 375 376 It is worth noting that bmake (like gmake) treats the command 377 line as the unit of failure, rather than statements within the 378 command line. Thus '(cd some/where && dosomething)' is safer 379 than 'cd some/where; dosomething'. The '()' allows consistent 380 behavior in parallel build. 381 38220130429: 383 Fix a bug that allows NFS clients to issue READDIR on files. 384 38520130426: 386 The WITHOUT_IDEA option has been removed because 387 the IDEA patent expired. 388 38920130426: 390 The sysctl which controls TRIM support under ZFS has been renamed 391 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 392 enabled by default. 393 39420130425: 395 The mergemaster command now uses the default MAKEOBJDIRPREFIX 396 rather than creating it's own in the temporary directory in 397 order allow access to bootstrapped versions of tools such as 398 install and mtree. When upgrading from version of FreeBSD where 399 the install command does not support -l, you will need to 400 install a new mergemaster command if mergemaster -p is required. 401 This can be accomplished with the command (cd src/usr.sbin/mergemaster 402 && make install). 403 40420130404: 405 Legacy ATA stack, disabled and replaced by new CAM-based one since 406 FreeBSD 9.0, completely removed from the sources. Kernel modules 407 atadisk and atapi*, user-level tools atacontrol and burncd are 408 removed. Kernel option `options ATA_CAM` is now permanently enabled 409 and removed. 410 41120130319: 412 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 413 and socketpair(2). Software, in particular Kerberos, may 414 automatically detect and use these during building. The resulting 415 binaries will not work on older kernels. 416 41720130308: 418 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 419 information, see the respective 20130304 entry). 420 42120130304: 422 Recent commits to callout(9) changed the size of struct callout, 423 so the KBI is probably heavily disturbed. Also, some functions 424 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 425 by macros. Every kernel module using it won't load, so rebuild 426 is requested. 427 428 The ctl device has been re-enabled in GENERIC for i386 and amd64, 429 but does not initialize by default (because of the new CTL_DISABLE 430 option) to save memory. To re-enable it, remove the CTL_DISABLE 431 option from the kernel config file or set kern.cam.ctl.disable=0 432 in /boot/loader.conf. 433 43420130301: 435 The ctl device has been disabled in GENERIC for i386 and amd64. 436 This was done due to the extra memory being allocated at system 437 initialisation time by the ctl driver which was only used if 438 a CAM target device was created. This makes a FreeBSD system 439 unusable on 128MB or less of RAM. 440 44120130208: 442 A new compression method (lz4) has been merged to -HEAD. Please 443 refer to zpool-features(7) for more information. 444 445 Please refer to the "ZFS notes" section of this file for information 446 on upgrading boot ZFS pools. 447 44820130129: 449 A BSD-licensed patch(1) variant has been added and is installed 450 as bsdpatch, being the GNU version the default patch. 451 To inverse the logic and use the BSD-licensed one as default, 452 while having the GNU version installed as gnupatch, rebuild 453 and install world with the WITH_BSD_PATCH knob set. 454 45520130121: 456 Due to the use of the new -l option to install(1) during build 457 and install, you must take care not to directly set the INSTALL 458 make variable in your /etc/make.conf, /etc/src.conf, or on the 459 command line. If you wish to use the -C flag for all installs 460 you may be able to add INSTALL+=-C to /etc/make.conf or 461 /etc/src.conf. 462 46320130118: 464 The install(1) option -M has changed meaning and now takes an 465 argument that is a file or path to append logs to. In the 466 unlikely event that -M was the last option on the command line 467 and the command line contained at least two files and a target 468 directory the first file will have logs appended to it. The -M 469 option served little practical purpose in the last decade so its 470 use is expected to be extremely rare. 471 47220121223: 473 After switching to Clang as the default compiler some users of ZFS 474 on i386 systems started to experience stack overflow kernel panics. 475 Please consider using 'options KSTACK_PAGES=4' in such configurations. 476 47720121222: 478 GEOM_LABEL now mangles label names read from file system metadata. 479 Mangling affect labels containing spaces, non-printable characters, 480 '%' or '"'. Device names in /etc/fstab and other places may need to 481 be updated. 482 48320121217: 484 By default, only the 10 most recent kernel dumps will be saved. To 485 restore the previous behaviour (no limit on the number of kernel dumps 486 stored in the dump directory) add the following line to /etc/rc.conf: 487 488 savecore_flags="" 489 49020121201: 491 With the addition of auditdistd(8), a new auditdistd user is now 492 required during installworld. "mergemaster -p" can be used to 493 add the user prior to installworld, as documented in the handbook. 494 49520121117: 496 The sin6_scope_id member variable in struct sockaddr_in6 is now 497 filled by the kernel before passing the structure to the userland via 498 sysctl or routing socket. This means the KAME-specific embedded scope 499 id in sin6_addr.s6_addr[2] is always cleared in userland application. 500 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 501 __FreeBSD_version is bumped to 1000025. 502 50320121105: 504 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 505 This means that the world and kernel will be compiled with clang 506 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 507 and /usr/bin/cpp. To disable this behavior and revert to building 508 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 509 of current may need to bootstrap WITHOUT_CLANG first if the clang 510 build fails (its compatibility window doesn't extend to the 9 stable 511 branch point). 512 51320121102: 514 The IPFIREWALL_FORWARD kernel option has been removed. Its 515 functionality now turned on by default. 516 51720121023: 518 The ZERO_COPY_SOCKET kernel option has been removed and 519 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 520 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 521 mechanism which is not safe and may result in kernel crashes. 522 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 523 driver supports disposeable external page sized mbuf storage. 524 Proper replacements for both zero-copy mechanisms are under 525 consideration and will eventually lead to complete removal 526 of the two kernel options. 527 52820121023: 529 The IPv4 network stack has been converted to network byte 530 order. The following modules need to be recompiled together 531 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 532 pf(4), ipfw(4), ng_ipfw(4), stf(4). 533 53420121022: 535 Support for non-MPSAFE filesystems was removed from VFS. The 536 VFS_VERSION was bumped, all filesystem modules shall be 537 recompiled. 538 53920121018: 540 All the non-MPSAFE filesystems have been disconnected from 541 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 542 portalfs, smbfs, xfs. 543 54420121016: 545 The interface cloning API and ABI has changed. The following 546 modules need to be recompiled together with kernel: 547 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 548 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 549 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 550 55120121015: 552 The sdhci driver was split in two parts: sdhci (generic SD Host 553 Controller logic) and sdhci_pci (actual hardware driver). 554 No kernel config modifications are required, but if you 555 load sdhc as a module you must switch to sdhci_pci instead. 556 55720121014: 558 Import the FUSE kernel and userland support into base system. 559 56020121013: 561 The GNU sort(1) program has been removed since the BSD-licensed 562 sort(1) has been the default for quite some time and no serious 563 problems have been reported. The corresponding WITH_GNU_SORT 564 knob has also gone. 565 56620121006: 567 The pfil(9) API/ABI for AF_INET family has been changed. Packet 568 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 569 with new kernel. 570 57120121001: 572 The net80211(4) ABI has been changed to allow for improved driver 573 PS-POLL and power-save support. All wireless drivers need to be 574 recompiled to work with the new kernel. 575 57620120913: 577 The random(4) support for the VIA hardware random number 578 generator (`PADLOCK') is no longer enabled unconditionally. 579 Add the padlock_rng device in the custom kernel config if 580 needed. The GENERIC kernels on i386 and amd64 do include the 581 device, so the change only affects the custom kernel 582 configurations. 583 58420120908: 585 The pf(4) packet filter ABI has been changed. pfctl(8) and 586 snmp_pf module need to be recompiled to work with new kernel. 587 58820120828: 589 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 590 to -HEAD. Pools that have empty_bpobj in active state can not be 591 imported read-write with ZFS implementations that do not support 592 this feature. For more information read the zpool-features(5) 593 manual page. 594 59520120727: 596 The sparc64 ZFS loader has been changed to no longer try to auto- 597 detect ZFS providers based on diskN aliases but now requires these 598 to be explicitly listed in the OFW boot-device environment variable. 599 60020120712: 601 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 602 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 603 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 604 60520120712: 606 The following sysctls and tunables have been renamed for consistency 607 with other variables: 608 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 609 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 610 61120120628: 612 The sort utility has been replaced with BSD sort. For now, GNU sort 613 is also available as "gnusort" or the default can be set back to 614 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 615 installed as "bsdsort". 616 61720120611: 618 A new version of ZFS (pool version 5000) has been merged to -HEAD. 619 Starting with this version the old system of ZFS pool versioning 620 is superseded by "feature flags". This concept enables forward 621 compatibility against certain future changes in functionality of ZFS 622 pools. The first read-only compatible "feature flag" for ZFS pools 623 is named "com.delphix:async_destroy". For more information 624 read the new zpool-features(5) manual page. 625 Please refer to the "ZFS notes" section of this file for information 626 on upgrading boot ZFS pools. 627 62820120417: 629 The malloc(3) implementation embedded in libc now uses sources imported 630 as contrib/jemalloc. The most disruptive API change is to 631 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 632 delete it prior to installworld, and optionally re-create it using the 633 new format after rebooting. See malloc.conf(5) for details 634 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 635 NAMESPACE section). 636 63720120328: 638 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 639 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 640 now spelled mips. This is to aid compatibility with third-party 641 software that expects this naming scheme in uname(3). Little-endian 642 settings are unchanged. If you are updating a big-endian mips64 machine 643 from before this change, you may need to set MACHINE_ARCH=mips64 in 644 your environment before the new build system will recognize your machine. 645 64620120306: 647 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 648 platforms. 649 65020120229: 651 Now unix domain sockets behave "as expected" on nullfs(5). Previously 652 nullfs(5) did not pass through all behaviours to the underlying layer, 653 as a result if we bound to a socket on the lower layer we could connect 654 only to the lower path; if we bound to the upper layer we could connect 655 only to the upper path. The new behavior is one can connect to both the 656 lower and the upper paths regardless what layer path one binds to. 657 65820120211: 659 The getifaddrs upgrade path broken with 20111215 has been restored. 660 If you have upgraded in between 20111215 and 20120209 you need to 661 recompile libc again with your kernel. You still need to recompile 662 world to be able to configure CARP but this restriction already 663 comes from 20111215. 664 66520120114: 666 The set_rcvar() function has been removed from /etc/rc.subr. All 667 base and ports rc.d scripts have been updated, so if you have a 668 port installed with a script in /usr/local/etc/rc.d you can either 669 hand-edit the rcvar= line, or reinstall the port. 670 671 An easy way to handle the mass-update of /etc/rc.d: 672 rm /etc/rc.d/* && mergemaster -i 673 67420120109: 675 panic(9) now stops other CPUs in the SMP systems, disables interrupts 676 on the current CPU and prevents other threads from running. 677 This behavior can be reverted using the kern.stop_scheduler_on_panic 678 tunable/sysctl. 679 The new behavior can be incompatible with kern.sync_on_panic. 680 68120111215: 682 The carp(4) facility has been changed significantly. Configuration 683 of the CARP protocol via ifconfig(8) has changed, as well as format 684 of CARP events submitted to devd(8) has changed. See manual pages 685 for more information. The arpbalance feature of carp(4) is currently 686 not supported anymore. 687 688 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 689 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 690 need to be recompiled. 691 69220111122: 693 The acpi_wmi(4) status device /dev/wmistat has been renamed to 694 /dev/wmistat0. 695 69620111108: 697 The option VFS_ALLOW_NONMPSAFE option has been added in order to 698 explicitely support non-MPSAFE filesystems. 699 It is on by default for all supported platform at this present 700 time. 701 70220111101: 703 The broken amd(4) driver has been replaced with esp(4) in the amd64, 704 i386 and pc98 GENERIC kernel configuration files. 705 70620110930: 707 sysinstall has been removed 708 70920110923: 710 The stable/9 branch created in subversion. This corresponds to the 711 RELENG_9 branch in CVS. 712 71320110913: 714 This commit modifies vfs_register() so that it uses a hash 715 calculation to set vfc_typenum, which is enabled by default. 716 The first time a system is booted after this change, the 717 vfc_typenum values will change for all file systems. The 718 main effect of this is a change to the NFS server file handles 719 for file systems that use vfc_typenum in their fsid, such as ZFS. 720 It will, however, prevent vfc_typenum from changing when file 721 systems are loaded in a different order for subsequent reboots. 722 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 723 until you are ready to remount all NFS clients after a reboot. 724 72520110828: 726 Bump the shared library version numbers for libraries that 727 do not use symbol versioning, have changed the ABI compared 728 to stable/8 and which shared library version was not bumped. 729 Done as part of 9.0-RELEASE cycle. 730 73120110815: 732 During the merge of Capsicum features, the fget(9) KPI was modified. 733 This may require the rebuilding of out-of-tree device drivers -- 734 issues have been reported specifically with the nVidia device driver. 735 __FreeBSD_version is bumped to 900041. 736 737 Also, there is a period between 20110811 and 20110814 where the 738 special devices /dev/{stdin,stdout,stderr} did not work correctly. 739 Building world from a kernel during that window may not work. 740 74120110628: 742 The packet filter (pf) code has been updated to OpenBSD 4.5. 743 You need to update userland tools to be in sync with kernel. 744 This update breaks backward compatibility with earlier pfsync(4) 745 versions. Care must be taken when updating redundant firewall setups. 746 74720110608: 748 The following sysctls and tunables are retired on x86 platforms: 749 machdep.hlt_cpus 750 machdep.hlt_logical_cpus 751 The following sysctl is retired: 752 machdep.hyperthreading_allowed 753 The sysctls were supposed to provide a way to dynamically offline and 754 online selected CPUs on x86 platforms, but the implementation has not 755 been reliable especially with SCHED_ULE scheduler. 756 machdep.hyperthreading_allowed tunable is still available to ignore 757 hyperthreading CPUs at OS level. 758 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 759 where X is an APIC ID of a CPU. Be advised, though, that disabling 760 CPUs in non-uniform fashion will result in non-uniform topology and 761 may lead to sub-optimal system performance with SCHED_ULE, which is 762 a default scheduler. 763 76420110607: 765 cpumask_t type is retired and cpuset_t is used in order to describe 766 a mask of CPUs. 767 76820110531: 769 Changes to ifconfig(8) for dynamic address family detection mandate 770 that you are running a kernel of 20110525 or later. Make sure to 771 follow the update procedure to boot a new kernel before installing 772 world. 773 77420110513: 775 Support for sun4v architecture is officially dropped 776 77720110503: 778 Several KPI breaking changes have been committed to the mii(4) layer, 779 the PHY drivers and consequently some Ethernet drivers using mii(4). 780 This means that miibus.ko and the modules of the affected Ethernet 781 drivers need to be recompiled. 782 783 Note to kernel developers: Given that the OUI bit reversion problem 784 was fixed as part of these changes all mii(4) commits related to OUIs, 785 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 786 handling, no longer can be merged verbatim to stable/8 and previous 787 branches. 788 78920110430: 790 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 791 into their kernel configurations along with 'device pci'. 792 79320110427: 794 The default NFS client is now the new NFS client, so fstype "newnfs" 795 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 796 Although mounts via fstype "nfs" will usually work without userland 797 changes, it is recommended that the mount(8) and mount_nfs(8) 798 commands be rebuilt from sources and that a link to mount_nfs called 799 mount_oldnfs be created. The new client is compiled into the 800 kernel with "options NFSCL" and this is needed for diskless root 801 file systems. The GENERIC kernel configs have been changed to use 802 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 803 To use the regular/old client, you can "mount -t oldnfs ...". For 804 a diskless root file system, you must also include a line like: 805 806 vfs.root.mountfrom="oldnfs:" 807 808 in the boot/loader.conf on the root fs on the NFS server to make 809 a diskless root fs use the old client. 810 81120110424: 812 The GENERIC kernels for all architectures now default to the new 813 CAM-based ATA stack. It means that all legacy ATA drivers were 814 removed and replaced by respective CAM drivers. If you are using 815 ATA device names in /etc/fstab or other places, make sure to update 816 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 817 where 'Y's are the sequential numbers starting from zero for each type 818 in order of detection, unless configured otherwise with tunables, 819 see cam(4)). There will be symbolic links created in /dev/ to map 820 old adX devices to the respective adaY. They should provide basic 821 compatibility for file systems mounting in most cases, but they do 822 not support old user-level APIs and do not have respective providers 823 in GEOM. Consider using updated management tools with new device names. 824 825 It is possible to load devices ahci, ata, siis and mvs as modules, 826 but option ATA_CAM should remain in kernel configuration to make ata 827 module work as CAM driver supporting legacy ATA controllers. Device ata 828 still can be used in modular fashion (atacore + ...). Modules atadisk 829 and atapi* are not used and won't affect operation in ATA_CAM mode. 830 Note that to use CAM-based ATA kernel should include CAM devices 831 scbus, pass, da (or explicitly ada), cd and optionally others. All of 832 them are parts of the cam module. 833 834 ataraid(4) functionality is now supported by the RAID GEOM class. 835 To use it you can load geom_raid kernel module and use graid(8) tool 836 for management. Instead of /dev/arX device names, use /dev/raid/rX. 837 838 No kernel config options or code have been removed, so if a problem 839 arises, please report it and optionally revert to the old ATA stack. 840 In order to do it you can remove from the kernel config: 841 options ATA_CAM 842 device ahci 843 device mvs 844 device siis 845 , and instead add back: 846 device atadisk # ATA disk drives 847 device ataraid # ATA RAID drives 848 device atapicd # ATAPI CDROM drives 849 device atapifd # ATAPI floppy drives 850 device atapist # ATAPI tape drives 851 85220110423: 853 The default NFS server has been changed to the new server, which 854 was referred to as the experimental server. If you need to switch 855 back to the old NFS server, you must now put the "-o" option on 856 both the mountd and nfsd commands. This can be done using the 857 mountd_flags and nfs_server_flags rc.conf variables until an 858 update to the rc scripts is committed, which is coming soon. 859 86020110418: 861 The GNU Objective-C runtime library (libobjc), and other Objective-C 862 related components have been removed from the base system. If you 863 require an Objective-C library, please use one of the available ports. 864 86520110331: 866 ath(4) has been split into bus- and device- modules. if_ath contains 867 the HAL, the TX rate control and the network device code. if_ath_pci 868 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 869 contains the AHB glue. Users need to load both if_ath_pci and if_ath 870 in order to use ath on everything else. 871 872 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 873 need to load if_ath and if_ath_pci for ath(4) operation. 874 87520110314: 876 As part of the replacement of sysinstall, the process of building 877 release media has changed significantly. For details, please re-read 878 release(7), which has been updated to reflect the new build process. 879 88020110218: 881 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 882 is the last available version under GPLv2. It brings a number of new 883 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 884 4.1 and SSE 4.2), better support for powerpc64, a number of new 885 directives, and lots of other small improvements. See the ChangeLog 886 file in contrib/binutils for the full details. 887 88820110218: 889 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 890 compliant, and will now use half of hash for authentication. 891 This will break interoperability with all stacks (including all 892 actual FreeBSD versions) who implement 893 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 894 authentication). 895 The only workaround with such peers is to use another HMAC 896 algorithm for IPsec ("phase 2") authentication. 897 89820110207: 899 Remove the uio_yield prototype and symbol. This function has 900 been misnamed since it was introduced and should not be 901 globally exposed with this name. The equivalent functionality 902 is now available using kern_yield(curthread->td_user_pri). 903 The function remains undocumented. 904 90520110112: 906 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 907 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 908 for scalar sysctls is defined but disabled. Code that needs 909 UQUAD to pass the type checking that must compile on older 910 systems where the define is not present can check against 911 __FreeBSD_version >= 900030. 912 913 The system dialog(1) has been replaced with a new version previously 914 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 915 with the previous version, but the libdialog associated with it has 916 a largely incompatible API. As such, the original version of libdialog 917 will be kept temporarily as libodialog, until its base system consumers 918 are replaced or updated. Bump __FreeBSD_version to 900030. 919 92020110103: 921 If you are trying to run make universe on a -stable system, and you get 922 the following warning: 923 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 924 unknown. config(8) likely too old." 925 or something similar to it, then you must upgrade your -stable system 926 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 927 stable/8) or build the config from the latest stable/8 branch and 928 install it on your system. 929 930 Prior to this date, building a current universe on 8-stable system from 931 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 932 error in the first kernel build phase. A new config on those old 933 systems will fix that problem for older versions of -current. 934 93520101228: 936 The TCP stack has been modified to allow Khelp modules to interact with 937 it via helper hook points and store per-connection data in the TCP 938 control block. Bump __FreeBSD_version to 900029. User space tools that 939 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 940 be recompiled. 941 94220101114: 943 Generic IEEE 802.3 annex 31B full duplex flow control support has been 944 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 945 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 946 to take advantage of it instead of using custom implementations. This 947 means that these drivers now no longer unconditionally advertise 948 support for flow control but only do so if flow control is a selected 949 media option. This was implemented in the generic support that way in 950 order to allow flow control to be switched on and off via ifconfig(8) 951 with the PHY specific default to typically off in order to protect 952 from unwanted effects. Consequently, if you used flow control with 953 one of the above mentioned drivers you now need to explicitly enable 954 it, for example via: 955 ifconfig bge0 media auto mediaopt flowcontrol 956 957 Along with the above mentioned changes generic support for setting 958 1000baseT master mode also has been added and brgphy(4), ciphy(4), 959 e1000phy(4) as well as ip1000phy(4) have been converted to take 960 advantage of it. This means that these drivers now no longer take the 961 link0 parameter for selecting master mode but the master media option 962 has to be used instead, for example like in the following: 963 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 964 965 Selection of master mode now is also available with all other PHY 966 drivers supporting 1000baseT. 967 96820101111: 969 The TCP stack has received a significant update to add support for 970 modularised congestion control and generally improve the clarity of 971 congestion control decisions. Bump __FreeBSD_version to 900025. User 972 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 973 sockstat) need to be recompiled. 974 97520101002: 976 The man(1) utility has been replaced by a new version that no longer 977 uses /etc/manpath.config. Please consult man.conf(5) for how to 978 migrate local entries to the new format. 979 98020100928: 981 The copyright strings printed by login(1) and sshd(8) at the time of a 982 new connection have been removed to follow other operating systems and 983 upstream sshd. 984 98520100915: 986 A workaround for a fixed ld bug has been removed in kernel code, 987 so make sure that your system ld is built from sources after 988 revision 210245 from 2010-07-19 (r211583 if building head kernel 989 on stable/8, r211584 for stable/7; both from 2010-08-21). 990 A symptom of incorrect ld version is different addresses for 991 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 992 99320100913: 994 The $ipv6_prefer variable in rc.conf(5) has been split into 995 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 996 997 The $ip6addrctl_policy is a variable to choose a pre-defined 998 address selection policy set by ip6addrctl(8). A value 999 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1000 default is "AUTO". 1001 1002 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1003 flag (see an entry of 20090926) is set on an interface with no 1004 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1005 security reason. If you want IPv6 link-local address on all 1006 interfaces by default, set this to "YES". 1007 1008 The old ipv6_prefer="YES" is equivalent to 1009 ipv6_activate_all_interfaces="YES" and 1010 ip6addrctl_policy="ipv6_prefer". 1011 101220100913: 1013 DTrace has grown support for userland tracing. Due to this, DTrace is 1014 now i386 and amd64 only. 1015 dtruss(1) is now installed by default on those systems and a new 1016 kernel module is needed for userland tracing: fasttrap. 1017 No changes to your kernel config file are necessary to enable 1018 userland tracing, but you might consider adding 'STRIP=' and 1019 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1020 to have informative userland stack traces in DTrace (ustack). 1021 102220100725: 1023 The acpi_aiboost(4) driver has been removed in favor of the new 1024 aibs(4) driver. You should update your kernel configuration file. 1025 102620100722: 1027 BSD grep has been imported to the base system and it is built by 1028 default. It is completely BSD licensed, highly GNU-compatible, uses 1029 less memory than its GNU counterpart and has a small codebase. 1030 However, it is slower than its GNU counterpart, which is mostly 1031 noticeable for larger searches, for smaller ones it is measurable 1032 but not significant. The reason is complex, the most important factor 1033 is that we lack a modern and efficient regex library and GNU 1034 overcomes this by optimizing the searches internally. Future work 1035 on improving the regex performance is planned, for the meantime, 1036 users that need better performance, can build GNU grep instead by 1037 setting the WITH_GNU_GREP knob. 1038 103920100713: 1040 Due to the import of powerpc64 support, all existing powerpc kernel 1041 configuration files must be updated with a machine directive like this: 1042 machine powerpc powerpc 1043 1044 In addition, an updated config(8) is required to build powerpc kernels 1045 after this change. 1046 104720100713: 1048 A new version of ZFS (version 15) has been merged to -HEAD. 1049 This version uses a python library for the following subcommands: 1050 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1051 For full functionality of these commands the following port must 1052 be installed: sysutils/py-zfs 1053 105420100429: 1055 'vm_page's are now hashed by physical address to an array of mutexes. 1056 Currently this is only used to serialize access to hold_count. Over 1057 time the page queue mutex will be peeled away. This changes the size 1058 of pmap on every architecture. And requires all callers of vm_page_hold 1059 and vm_page_unhold to be updated. 1060 106120100402: 1062 WITH_CTF can now be specified in src.conf (not recommended, there 1063 are some problems with static executables), make.conf (would also 1064 affect ports which do not use GNU make and do not override the 1065 compile targets) or in the kernel config (via "makeoptions 1066 WITH_CTF=yes"). 1067 When WITH_CTF was specified there before this was silently ignored, 1068 so make sure that WITH_CTF is not used in places which could lead 1069 to unwanted behavior. 1070 107120100311: 1072 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1073 to allow 32-bit compatibility on non-x86 platforms. All kernel 1074 configurations on amd64 and ia64 platforms using these options must 1075 be modified accordingly. 1076 107720100113: 1078 The utmp user accounting database has been replaced with utmpx, 1079 the user accounting interface standardized by POSIX. 1080 Unfortunately the semantics of utmp and utmpx don't match, 1081 making it practically impossible to support both interfaces. 1082 The user accounting database is used by tools like finger(1), 1083 last(1), talk(1), w(1) and ac(8). 1084 1085 All applications in the base system use utmpx. This means only 1086 local binaries (e.g. from the ports tree) may still use these 1087 utmp database files. These applications must be rebuilt to make 1088 use of utmpx. 1089 1090 After the system has been upgraded, it is safe to remove the old 1091 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1092 assuming their contents is of no importance anymore. Old wtmp 1093 databases can only be used by last(1) and ac(8) after they have 1094 been converted to the new format using wtmpcvt(1). 1095 109620100108: 1097 Introduce the kernel thread "deadlock resolver" (which can be enabled 1098 via the DEADLKRES option, see NOTES for more details) and the 1099 sleepq_type() function for sleepqueues. 1100 110120091202: 1102 The rc.firewall and rc.firewall6 were unified, and 1103 rc.firewall6 and rc.d/ip6fw were removed. 1104 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1105 variables are obsoleted. Instead, the following new rc 1106 variables are added to rc.d/ipfw: 1107 1108 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1109 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1110 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1111 1112 The meanings correspond to the relevant IPv4 variables. 1113 111420091125: 1115 8.0-RELEASE. 1116 111720091113: 1118 The default terminal emulation for syscons(4) has been changed 1119 from cons25 to xterm on all platforms except pc98. This means 1120 that the /etc/ttys file needs to be updated to ensure correct 1121 operation of applications on the console. 1122 1123 The terminal emulation style can be toggled per window by using 1124 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1125 options can be used to change the compile-time default back to 1126 cons25. 1127 1128 To prevent graphical artifacts, make sure the TERM environment 1129 variable is set to match the terminal emulation that is being 1130 performed by syscons(4). 1131 113220091109: 1133 The layout of the structure ieee80211req_scan_result has changed. 1134 Applications that require wireless scan results (e.g. ifconfig(8)) 1135 from net80211 need to be recompiled. 1136 1137 Applications such as wpa_supplicant(8) may require a full world 1138 build without using NO_CLEAN in order to get synchronized with the 1139 new structure. 1140 114120091025: 1142 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1143 There's one kernel module for each firmware. Adding "device iwnfw" 1144 to the kernel configuration file means including all three firmware 1145 images inside the kernel. If you want to include just the one for 1146 your wireless card, use the devices iwn4965fw, iwn5000fw or 1147 iwn5150fw. 1148 114920090926: 1150 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1151 into rc.d/netif. The changes are the following: 1152 1153 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1154 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1155 Note that both variables need the "inet6" keyword at the head. 1156 1157 Do not set $ipv6_network_interfaces manually if you do not 1158 understand what you are doing. It is not needed in most cases. 1159 1160 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1161 they are obsolete. 1162 1163 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1164 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1165 1166 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1167 all configured interfaces have "inet6 accept_rtadv" in the 1168 $ifconfig_IF_ipv6. These are for backward compatibility. 1169 1170 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1171 functionality of interfaces with no corresponding 1172 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1173 and the default address selection policy of ip6addrctl(8) 1174 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1175 Note that if you want to configure IPv6 functionality on the 1176 disabled interfaces after boot, first you need to clear the flag by 1177 using ifconfig(8) like: 1178 1179 ifconfig em0 inet6 -ifdisabled 1180 1181 If YES, the default address selection policy is set as 1182 IPv6-preferred. 1183 1184 The default value of $ipv6_prefer is NO. 1185 1186 4. If your system need to receive Router Advertisement messages, 1187 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1188 scripts automatically invoke rtsol(8) when the interface becomes 1189 UP. The Router Advertisement messages are used for SLAAC 1190 (State-Less Address AutoConfiguration). 1191 119220090922: 1193 802.11s D3.03 support was committed. This is incompatible with the 1194 previous code, which was based on D3.0. 1195 119620090912: 1197 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1198 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1199 control whether accepting Router Advertisement messages or not. 1200 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1201 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1202 The ifconfig(8) utility now supports these flags. 1203 120420090910: 1205 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1206 mount(8) and -a option for df(1) to see them. 1207 120820090825: 1209 The old tunable hw.bus.devctl_disable has been superseded by 1210 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1211 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1212 is 1000. 1213 121420090813: 1215 Remove the option STOP_NMI. The default action is now to use NMI only 1216 for KDB via the newly introduced function stop_cpus_hard() and 1217 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1218 121920090803: 1220 The stable/8 branch created in subversion. This corresponds to the 1221 RELENG_8 branch in CVS. 1222 122320090719: 1224 Bump the shared library version numbers for all libraries that do not 1225 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1226 __FreeBSD_version to 800105. 1227 122820090714: 1229 Due to changes in the implementation of virtual network stack support, 1230 all network-related kernel modules must be recompiled. As this change 1231 breaks the ABI, bump __FreeBSD_version to 800104. 1232 123320090713: 1234 The TOE interface to the TCP syncache has been modified to remove 1235 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1236 The cxgb driver is the only TOE consumer affected by this change, and 1237 needs to be recompiled along with the kernel. As this change breaks 1238 the ABI, bump __FreeBSD_version to 800103. 1239 124020090712: 1241 Padding has been added to struct tcpcb, sackhint and tcpstat in 1242 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1243 maintaining the ABI. However, this change breaks the ABI, so bump 1244 __FreeBSD_version to 800102. User space tools that rely on the size of 1245 any of these structs (e.g. sockstat) need to be recompiled. 1246 124720090630: 1248 The NFS_LEGACYRPC option has been removed along with the old kernel 1249 RPC implementation that this option selected. Kernel configurations 1250 may need to be adjusted. 1251 125220090629: 1253 The network interface device nodes at /dev/net/<interface> have been 1254 removed. All ioctl operations can be performed the normal way using 1255 routing sockets. The kqueue functionality can generally be replaced 1256 with routing sockets. 1257 125820090628: 1259 The documentation from the FreeBSD Documentation Project (Handbook, 1260 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1261 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1262 126320090624: 1264 The ABI of various structures related to the SYSV IPC API have been 1265 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1266 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1267 800100. 1268 126920090622: 1270 Layout of struct vnet has changed as routing related variables were 1271 moved to their own Vimage module. Modules need to be recompiled. Bump 1272 __FreeBSD_version to 800099. 1273 127420090619: 1275 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1276 respectively. As long as no more than 16 groups per process are used, 1277 no changes should be visible. When more than 16 groups are used, old 1278 binaries may fail if they call getgroups() or getgrouplist() with 1279 statically sized storage. Recompiling will work around this, but 1280 applications should be modified to use dynamically allocated storage 1281 for group arrays as POSIX.1-2008 does not cap an implementation's 1282 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1283 1284 NFS and portalfs mounts may also be affected as the list of groups is 1285 truncated to 16. Users of NFS who use more than 16 groups, should 1286 take care that negative group permissions are not used on the exported 1287 file systems as they will not be reliable unless a GSSAPI based 1288 authentication method is used. 1289 129020090616: 1291 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1292 option compiles in the support for adaptive spinning for lockmgrs 1293 which want to enable it. The lockinit() function now accepts the flag 1294 LK_ADAPTIVE in order to make the lock object subject to adaptive 1295 spinning when both held in write and read mode. 1296 129720090613: 1298 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1299 changed. User applications that use this ioctl need to be rebuilt. 1300 130120090611: 1302 The layout of struct thread has changed. Kernel and modules need to 1303 be rebuilt. 1304 130520090608: 1306 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1307 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1308 130920090602: 1310 window(1) has been removed from the base system. It can now be 1311 installed from ports. The port is called misc/window. 1312 131320090601: 1314 The way we are storing and accessing `routing table' entries has 1315 changed. Programs reading the FIB, like netstat, need to be 1316 re-compiled. 1317 131820090601: 1319 A new netisr implementation has been added for FreeBSD 8. Network 1320 file system modules, such as igmp, ipdivert, and others, should be 1321 rebuilt. 1322 Bump __FreeBSD_version to 800096. 1323 132420090530: 1325 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1326 more valid. 1327 132820090530: 1329 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1330 Bump __FreeBSD_version to 800094. 1331 133220090529: 1333 Add mnt_xflag field to 'struct mount'. File system modules need to be 1334 rebuilt. 1335 Bump __FreeBSD_version to 800093. 1336 133720090528: 1338 The compiling option ADAPTIVE_SX has been retired while it has been 1339 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1340 The KPI for sx_init_flags() changes as accepting flags: 1341 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1342 been introduced in order to handle the reversed logic. 1343 Bump __FreeBSD_version to 800092. 1344 134520090527: 1346 Add support for hierarchical jails. Remove global securelevel. 1347 Bump __FreeBSD_version to 800091. 1348 134920090523: 1350 The layout of struct vnet_net has changed, therefore modules 1351 need to be rebuilt. 1352 Bump __FreeBSD_version to 800090. 1353 135420090523: 1355 The newly imported zic(8) produces a new format in the output. Please 1356 run tzsetup(8) to install the newly created data to /etc/localtime. 1357 135820090520: 1359 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1360 hw.usb.* and is now consistent again with previous releases. 1361 136220090520: 1363 802.11 monitor mode support was revised and driver api's were changed. 1364 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1365 of DLT_IEEE802_11. No user-visible data structures were changed but 1366 applications that use DLT_IEEE802_11 may require changes. 1367 Bump __FreeBSD_version to 800088. 1368 136920090430: 1370 The layout of the following structs has changed: sysctl_oid, 1371 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1372 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1373 panics may be experienced. World rebuild is required for 1374 correctly checking networking state from userland. 1375 Bump __FreeBSD_version to 800085. 1376 137720090429: 1378 MLDv2 and Source-Specific Multicast (SSM) have been merged 1379 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1380 The implementation of SSM within FreeBSD's IPv6 stack closely 1381 follows the IPv4 implementation. 1382 1383 For kernel developers: 1384 1385 * The most important changes are that the ip6_output() and 1386 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1387 and this lock has been downgraded to a non-recursive mutex. 1388 1389 * As with the changes to the IPv4 stack to support SSM, filtering 1390 of inbound multicast traffic must now be performed by transport 1391 protocols within the IPv6 stack. This does not apply to TCP and 1392 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1393 1394 * The KPIs used by IPv6 multicast are similar to those used by 1395 the IPv4 stack, with the following differences: 1396 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1397 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1398 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1399 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1400 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1401 for MLDv1 have an additional 'timer' argument which is used to 1402 jitter the initial membership report for the solicited-node 1403 multicast membership on-link. 1404 * This is not strictly needed for MLDv2, which already jitters 1405 its report transmissions. However, the 'timer' argument is 1406 preserved in case MLDv1 is active on the interface. 1407 1408 * The KAME linked-list based IPv6 membership implementation has 1409 been refactored to use a vector similar to that used by the IPv4 1410 stack. 1411 Code which maintains a list of its own multicast memberships 1412 internally, e.g. carp, has been updated to reflect the new 1413 semantics. 1414 1415 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1416 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1417 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1418 implementation constraint which needs to be addressed in HEAD. 1419 1420 For application developers: 1421 1422 * The changes are broadly similar to those made for the IPv4 1423 stack. 1424 1425 * The use of IPv4 and IPv6 multicast socket options on the same 1426 socket, using mapped addresses, HAS NOT been tested or supported. 1427 1428 * There are a number of issues with the implementation of various 1429 IPv6 multicast APIs which need to be resolved in the API surface 1430 before the implementation is fully compatible with KAME userland 1431 use, and these are mostly to do with interface index treatment. 1432 1433 * The literature available discusses the use of either the delta / ASM 1434 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1435 using setsourcefilter(3)/getsourcefilter(3). For more information 1436 please refer to RFC 3768, 'Socket Interface Extensions for 1437 Multicast Source Filters'. 1438 1439 * Applications which use the published RFC 3678 APIs should be fine. 1440 1441 For systems administrators: 1442 1443 * The mtest(8) utility has been refactored to support IPv6, in 1444 addition to IPv4. Interface addresses are no longer accepted 1445 as arguments, their names must be used instead. The utility 1446 will map the interface name to its first IPv4 address as 1447 returned by getifaddrs(3). 1448 1449 * The ifmcstat(8) utility has also been updated to print the MLDv2 1450 endpoint state and source filter lists via sysctl(3). 1451 1452 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1453 loopback of IPv6 multicast datagrams by default; it defaults to 1 1454 to preserve the existing behaviour. Disabling multicast loopback is 1455 recommended for optimal system performance. 1456 1457 * The IPv6 MROUTING code has been changed to examine this sysctl 1458 instead of attempting to perform a group lookup before looping 1459 back forwarded datagrams. 1460 1461 Bump __FreeBSD_version to 800084. 1462 146320090422: 1464 Implement low-level Bluetooth HCI API. 1465 Bump __FreeBSD_version to 800083. 1466 146720090419: 1468 The layout of struct malloc_type, used by modules to register new 1469 memory allocation types, has changed. Most modules will need to 1470 be rebuilt or panics may be experienced. 1471 Bump __FreeBSD_version to 800081. 1472 147320090415: 1474 Anticipate overflowing inp_flags - add inp_flags2. 1475 This changes most offsets in inpcb, so checking v4 connection 1476 state will require a world rebuild. 1477 Bump __FreeBSD_version to 800080. 1478 147920090415: 1480 Add an llentry to struct route and struct route_in6. Modules 1481 embedding a struct route will need to be recompiled. 1482 Bump __FreeBSD_version to 800079. 1483 148420090414: 1485 The size of rt_metrics_lite and by extension rtentry has changed. 1486 Networking administration apps will need to be recompiled. 1487 The route command now supports show as an alias for get, weighting 1488 of routes, sticky and nostick flags to alter the behavior of stateful 1489 load balancing. 1490 Bump __FreeBSD_version to 800078. 1491 149220090408: 1493 Do not use Giant for kbdmux(4) locking. This is wrong and 1494 apparently causing more problems than it solves. This will 1495 re-open the issue where interrupt handlers may race with 1496 kbdmux(4) in polling mode. Typical symptoms include (but 1497 not limited to) duplicated and/or missing characters when 1498 low level console functions (such as gets) are used while 1499 interrupts are enabled (for example geli password prompt, 1500 mountroot prompt etc.). Disabling kbdmux(4) may help. 1501 150220090407: 1503 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1504 kernel modules referencing any of the above need to be recompiled. 1505 Bump __FreeBSD_version to 800075. 1506 150720090320: 1508 GEOM_PART has become the default partition slicer for storage devices, 1509 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1510 introduces some changes: 1511 1512 MSDOS/EBR: the devices created from MSDOS extended partition entries 1513 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1514 to devices with offset-based names. fstabs may need to be modified. 1515 1516 BSD: the "geometry does not match label" warning is harmless in most 1517 cases but it points to problems in file system misalignment with 1518 disk geometry. The "c" partition is now implicit, covers the whole 1519 top-level drive and cannot be (mis)used by users. 1520 1521 General: Kernel dumps are now not allowed to be written to devices 1522 whose partition types indicate they are meant to be used for file 1523 systems (or, in case of MSDOS partitions, as something else than 1524 the "386BSD" type). 1525 1526 Most of these changes date approximately from 200812. 1527 152820090319: 1529 The uscanner(4) driver has been removed from the kernel. This follows 1530 Linux removing theirs in 2.6 and making libusb the default interface 1531 (supported by sane). 1532 153320090319: 1534 The multicast forwarding code has been cleaned up. netstat(1) 1535 only relies on KVM now for printing bandwidth upcall meters. 1536 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1537 ip6_mroute_mod respectively. The config(5) options for statically 1538 compiling this code remain the same, i.e. 'options MROUTING'. 1539 154020090315: 1541 Support for the IFF_NEEDSGIANT network interface flag has been 1542 removed, which means that non-MPSAFE network device drivers are no 1543 longer supported. In particular, if_ar, if_sr, and network device 1544 drivers from the old (legacy) USB stack can no longer be built or 1545 used. 1546 154720090313: 1548 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1549 a bunch of new language catalog files have also been added. 1550 This means that some common libc messages are now localized and 1551 they depend on the LC_MESSAGES environmental variable. 1552 155320090313: 1554 The k8temp(4) driver has been renamed to amdtemp(4) since 1555 support for Family 10 and Family 11 CPU families was added. 1556 155720090309: 1558 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1559 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1560 1561 For kernel developers, the most important changes are that the 1562 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1563 and this lock has been downgraded to a non-recursive mutex. 1564 1565 Transport protocols (UDP, Raw IP) are now responsible for filtering 1566 inbound multicast traffic according to group membership and source 1567 filters. The imo_multicast_filter() KPI exists for this purpose. 1568 Transports which do not use multicast (SCTP, TCP) already reject 1569 multicast by default. Forwarding and receive performance may improve 1570 as a mutex acquisition is no longer needed in the ip_input() 1571 low-level input path. in_addmulti() and in_delmulti() are shimmed 1572 to new KPIs which exist to support SSM in-kernel. 1573 1574 For application developers, it is recommended that loopback of 1575 multicast datagrams be disabled for best performance, as this 1576 will still cause the lock to be taken for each looped-back 1577 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1578 be tuned to 0 to disable loopback by default; it defaults to 1 1579 to preserve the existing behaviour. 1580 1581 For systems administrators, to obtain best performance with 1582 multicast reception and multiple groups, it is always recommended 1583 that a card with a suitably precise hash filter is used. Hash 1584 collisions will still result in the lock being taken within the 1585 transport protocol input path to check group membership. 1586 1587 If deploying FreeBSD in an environment with IGMP snooping switches, 1588 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1589 enabled; this forces 224.0.0.0/24 group membership to be announced 1590 via IGMP. 1591 1592 The size of 'struct igmpstat' has changed; netstat needs to be 1593 recompiled to reflect this. 1594 Bump __FreeBSD_version to 800070. 1595 159620090309: 1597 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1598 updated to use it. This requires a buildworld/installworld in order to 1599 update the library and dependencies (usbconfig, etc). Its advisable to 1600 rebuild all ports which uses libusb. More specific directions are given 1601 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1602 libusb are no longer required and can be removed. 1603 160420090302: 1605 A workaround is committed to allow the creation of System V shared 1606 memory segment of size > 2 GB on the 64-bit architectures. 1607 Due to a limitation of the existing ABI, the shm_segsz member 1608 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1609 wrong for large segments. Note that limits must be explicitly 1610 raised to allow such segments to be created. 1611 161220090301: 1613 The layout of struct ifnet has changed, requiring a rebuild of all 1614 network device driver modules. 1615 161620090227: 1617 The /dev handling for the new USB stack has changed, a 1618 buildworld/installworld is required for libusb20. 1619 162020090223: 1621 The new USB2 stack has now been permanently moved in and all kernel and 1622 module names reverted to their previous values (eg, usb, ehci, ohci, 1623 ums, ...). The old usb stack can be compiled in by prefixing the name 1624 with the letter 'o', the old usb modules have been removed. 1625 Updating entry 20090216 for xorg and 20090215 for libmap may still 1626 apply. 1627 162820090217: 1629 The rc.conf(5) option if_up_delay has been renamed to 1630 defaultroute_delay to better reflect its purpose. If you have 1631 customized this setting in /etc/rc.conf you need to update it to 1632 use the new name. 1633 163420090216: 1635 xorg 7.4 wants to configure its input devices via hald which does not 1636 yet work with USB2. If the keyboard/mouse does not work in xorg then 1637 add 1638 Option "AllowEmptyInput" "off" 1639 to your ServerLayout section. This will cause X to use the configured 1640 kbd and mouse sections from your xorg.conf. 1641 164220090215: 1643 The GENERIC kernels for all architectures now default to the new USB2 1644 stack. No kernel config options or code have been removed so if a 1645 problem arises please report it and optionally revert to the old USB 1646 stack. If you are loading USB kernel modules or have a custom kernel 1647 that includes GENERIC then ensure that usb names are also changed over, 1648 eg uftdi -> usb2_serial_ftdi. 1649 1650 Older programs linked against the ports libusb 0.1 need to be 1651 redirected to the new stack's libusb20. /etc/libmap.conf can 1652 be used for this: 1653 # Map old usb library to new one for usb2 stack 1654 libusb-0.1.so.8 libusb20.so.1 1655 165620090209: 1657 All USB ethernet devices now attach as interfaces under the name ueN 1658 (eg. ue0). This is to provide a predictable name as vendors often 1659 change usb chipsets in a product without notice. 1660 166120090203: 1662 The ichsmb(4) driver has been changed to require SMBus slave 1663 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1664 All of the other SMBus controller drivers require left-justified 1665 slave addresses, so this change makes all the drivers provide the 1666 same interface. 1667 166820090201: 1669 INET6 statistics (struct ip6stat) was updated. 1670 netstat(1) needs to be recompiled. 1671 167220090119: 1673 NTFS has been removed from GENERIC kernel on amd64 to match 1674 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1675 will load ntfs.ko module automatically when NTFS support is 1676 actually needed, unless ntfs.ko is not installed or security 1677 level prohibits loading kernel modules. If either is the case, 1678 "options NTFS" has to be added into kernel config. 1679 168020090115: 1681 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1682 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1683 800061. User space tools that rely on the size of struct tcpcb in 1684 tcp_var.h (e.g. sockstat) need to be recompiled. 1685 168620081225: 1687 ng_tty(4) module updated to match the new TTY subsystem. 1688 Due to API change, user-level applications must be updated. 1689 New API support added to mpd5 CVS and expected to be present 1690 in next mpd5.3 release. 1691 169220081219: 1693 With __FreeBSD_version 800060 the makefs tool is part of 1694 the base system (it was a port). 1695 169620081216: 1697 The afdata and ifnet locks have been changed from mutexes to 1698 rwlocks, network modules will need to be re-compiled. 1699 170020081214: 1701 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1702 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1703 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1704 architecture and 40 bytes on 64-bit architecture. The userland 1705 applications "arp" and "ndp" have been updated accordingly. 1706 The output from "netstat -r" shows only routing entries and 1707 none of the L2 information. 1708 170920081130: 1710 __FreeBSD_version 800057 marks the switchover from the 1711 binary ath hal to source code. Users must add the line: 1712 1713 options AH_SUPPORT_AR5416 1714 1715 to their kernel config files when specifying: 1716 1717 device ath_hal 1718 1719 The ath_hal module no longer exists; the code is now compiled 1720 together with the driver in the ath module. It is now 1721 possible to tailor chip support (i.e. reduce the set of chips 1722 and thereby the code size); consult ath_hal(4) for details. 1723 172420081121: 1725 __FreeBSD_version 800054 adds memory barriers to 1726 <machine/atomic.h>, new interfaces to ifnet to facilitate 1727 multiple hardware transmit queues for cards that support 1728 them, and a lock-less ring-buffer implementation to 1729 enable drivers to more efficiently manage queueing of 1730 packets. 1731 173220081117: 1733 A new version of ZFS (version 13) has been merged to -HEAD. 1734 This version has zpool attribute "listsnapshots" off by 1735 default, which means "zfs list" does not show snapshots, 1736 and is the same as Solaris behavior. 1737 173820081028: 1739 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1740 174120081009: 1742 The uhci, ohci, ehci and slhci USB Host controller drivers have 1743 been put into separate modules. If you load the usb module 1744 separately through loader.conf you will need to load the 1745 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1746 controller add the following to loader.conf: 1747 1748 uhci_load="YES" 1749 ehci_load="YES" 1750 175120081009: 1752 The ABI used by the PMC toolset has changed. Please keep 1753 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1754 sync. 1755 175620081009: 1757 atapci kernel module now includes only generic PCI ATA 1758 driver. AHCI driver moved to ataahci kernel module. 1759 All vendor-specific code moved into separate kernel modules: 1760 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1761 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1762 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1763 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1764 176520080820: 1766 The TTY subsystem of the kernel has been replaced by a new 1767 implementation, which provides better scalability and an 1768 improved driver model. Most common drivers have been migrated to 1769 the new TTY subsystem, while others have not. The following 1770 drivers have not yet been ported to the new TTY layer: 1771 1772 PCI/ISA: 1773 cy, digi, rc, rp, sio 1774 1775 USB: 1776 ubser, ucycom 1777 1778 Line disciplines: 1779 ng_h4, ng_tty, ppp, sl, snp 1780 1781 Adding these drivers to your kernel configuration file shall 1782 cause compilation to fail. 1783 178420080818: 1785 ntpd has been upgraded to 4.2.4p5. 1786 178720080801: 1788 OpenSSH has been upgraded to 5.1p1. 1789 1790 For many years, FreeBSD's version of OpenSSH preferred DSA 1791 over RSA for host and user authentication keys. With this 1792 upgrade, we've switched to the vendor's default of RSA over 1793 DSA. This may cause upgraded clients to warn about unknown 1794 host keys even for previously known hosts. Users should 1795 follow the usual procedure for verifying host keys before 1796 accepting the RSA key. 1797 1798 This can be circumvented by setting the "HostKeyAlgorithms" 1799 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1800 command line. 1801 1802 Please note that the sequence of keys offered for 1803 authentication has been changed as well. You may want to 1804 specify IdentityFile in a different order to revert this 1805 behavior. 1806 180720080713: 1808 The sio(4) driver has been removed from the i386 and amd64 1809 kernel configuration files. This means uart(4) is now the 1810 default serial port driver on those platforms as well. 1811 1812 To prevent collisions with the sio(4) driver, the uart(4) driver 1813 uses different names for its device nodes. This means the 1814 onboard serial port will now most likely be called "ttyu0" 1815 instead of "ttyd0". You may need to reconfigure applications to 1816 use the new device names. 1817 1818 When using the serial port as a boot console, be sure to update 1819 /boot/device.hints and /etc/ttys before booting the new kernel. 1820 If you forget to do so, you can still manually specify the hints 1821 at the loader prompt: 1822 1823 set hint.uart.0.at="isa" 1824 set hint.uart.0.port="0x3F8" 1825 set hint.uart.0.flags="0x10" 1826 set hint.uart.0.irq="4" 1827 boot -s 1828 182920080609: 1830 The gpt(8) utility has been removed. Use gpart(8) to partition 1831 disks instead. 1832 183320080603: 1834 The version that Linuxulator emulates was changed from 2.4.2 1835 to 2.6.16. If you experience any problems with Linux binaries 1836 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1837 if it fixes the problem contact emulation mailing list. 1838 183920080525: 1840 ISDN4BSD (I4B) was removed from the src tree. You may need to 1841 update a your kernel configuration and remove relevant entries. 1842 184320080509: 1844 I have checked in code to support multiple routing tables. 1845 See the man pages setfib(1) and setfib(2). 1846 This is a hopefully backwards compatible version, 1847 but to make use of it you need to compile your kernel 1848 with options ROUTETABLES=2 (or more up to 16). 1849 185020080420: 1851 The 802.11 wireless support was redone to enable multi-bss 1852 operation on devices that are capable. The underlying device 1853 is no longer used directly but instead wlanX devices are 1854 cloned with ifconfig. This requires changes to rc.conf files. 1855 For example, change: 1856 ifconfig_ath0="WPA DHCP" 1857 to 1858 wlans_ath0=wlan0 1859 ifconfig_wlan0="WPA DHCP" 1860 see rc.conf(5) for more details. In addition, mergemaster of 1861 /etc/rc.d is highly recommended. Simultaneous update of userland 1862 and kernel wouldn't hurt either. 1863 1864 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1865 modules were merged into the base wlan module. All references 1866 to these modules (e.g. in kernel config files) must be removed. 1867 186820080408: 1869 psm(4) has gained write(2) support in native operation level. 1870 Arbitrary commands can be written to /dev/psm%d and status can 1871 be read back from it. Therefore, an application is responsible 1872 for status validation and error recovery. It is a no-op in 1873 other operation levels. 1874 187520080312: 1876 Support for KSE threading has been removed from the kernel. To 1877 run legacy applications linked against KSE libmap.conf may 1878 be used. The following libmap.conf may be used to ensure 1879 compatibility with any prior release: 1880 1881 libpthread.so.1 libthr.so.1 1882 libpthread.so.2 libthr.so.2 1883 libkse.so.3 libthr.so.3 1884 188520080301: 1886 The layout of struct vmspace has changed. This affects libkvm 1887 and any executables that link against libkvm and use the 1888 kvm_getprocs() function. In particular, but not exclusively, 1889 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1890 The effects are minimal, but it's advisable to upgrade world 1891 nonetheless. 1892 189320080229: 1894 The latest em driver no longer has support in it for the 1895 82575 adapter, this is now moved to the igb driver. The 1896 split was done to make new features that are incompatible 1897 with older hardware easier to do. 1898 189920080220: 1900 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1901 likewise the kernel option is now GEOM_LINUX_LVM. 1902 190320080211: 1904 The default NFS mount mode has changed from UDP to TCP for 1905 increased reliability. If you rely on (insecurely) NFS 1906 mounting across a firewall you may need to update your 1907 firewall rules. 1908 190920080208: 1910 Belatedly note the addition of m_collapse for compacting 1911 mbuf chains. 1912 191320080126: 1914 The fts(3) structures have been changed to use adequate 1915 integer types for their members and so to be able to cope 1916 with huge file trees. The old fts(3) ABI is preserved 1917 through symbol versioning in libc, so third-party binaries 1918 using fts(3) should still work, although they will not take 1919 advantage of the extended types. At the same time, some 1920 third-party software might fail to build after this change 1921 due to unportable assumptions made in its source code about 1922 fts(3) structure members. Such software should be fixed 1923 by its vendor or, in the worst case, in the ports tree. 1924 FreeBSD_version 800015 marks this change for the unlikely 1925 case that a portable fix is impossible. 1926 192720080123: 1928 To upgrade to -current after this date, you must be running 1929 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1930 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1931 193220071128: 1933 The ADAPTIVE_GIANT kernel option has been retired because its 1934 functionality is the default now. 1935 193620071118: 1937 The AT keyboard emulation of sunkbd(4) has been turned on 1938 by default. In order to make the special symbols of the Sun 1939 keyboards driven by sunkbd(4) work under X these now have 1940 to be configured the same way as Sun USB keyboards driven 1941 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1942 1943 Option "XkbLayout" "us" 1944 Option "XkbRules" "xorg" 1945 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1946 194720071024: 1948 It has been decided that it is desirable to provide ABI 1949 backwards compatibility to the FreeBSD 4/5/6 versions of the 1950 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1951 broken with the introduction of PCI domain support (see the 1952 20070930 entry). Unfortunately, this required the ABI of 1953 PCIOCGETCONF to be broken again in order to be able to 1954 provide backwards compatibility to the old version of that 1955 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1956 again. As for prominent ports this affects neither pciutils 1957 nor xorg-server this time, the hal port needs to be rebuilt 1958 however. 1959 196020071020: 1961 The misnamed kthread_create() and friends have been renamed 1962 to kproc_create() etc. Many of the callers already 1963 used kproc_start().. 1964 I will return kthread_create() and friends in a while 1965 with implementations that actually create threads, not procs. 1966 Renaming corresponds with version 800002. 1967 196820071010: 1969 RELENG_7 branched. 1970 1971COMMON ITEMS: 1972 1973 General Notes 1974 ------------- 1975 Avoid using make -j when upgrading. While generally safe, there are 1976 sometimes problems using -j to upgrade. If your upgrade fails with 1977 -j, please try again without -j. From time to time in the past there 1978 have been problems using -j with buildworld and/or installworld. This 1979 is especially true when upgrading between "distant" versions (eg one 1980 that cross a major release boundary or several minor releases, or when 1981 several months have passed on the -current branch). 1982 1983 Sometimes, obscure build problems are the result of environment 1984 poisoning. This can happen because the make utility reads its 1985 environment when searching for values for global variables. To run 1986 your build attempts in an "environmental clean room", prefix all make 1987 commands with 'env -i '. See the env(1) manual page for more details. 1988 1989 When upgrading from one major version to another it is generally best 1990 to upgrade to the latest code in the currently installed branch first, 1991 then do an upgrade to the new branch. This is the best-tested upgrade 1992 path, and has the highest probability of being successful. Please try 1993 this approach before reporting problems with a major version upgrade. 1994 1995 When upgrading a live system, having a root shell around before 1996 installing anything can help undo problems. Not having a root shell 1997 around can lead to problems if pam has changed too much from your 1998 starting point to allow continued authentication after the upgrade. 1999 2000 ZFS notes 2001 --------- 2002 When upgrading the boot ZFS pool to a new version, always follow 2003 these two steps: 2004 2005 1.) recompile and reinstall the ZFS boot loader and boot block 2006 (this is part of "make buildworld" and "make installworld") 2007 2008 2.) update the ZFS boot block on your boot drive 2009 2010 The following example updates the ZFS boot block on the first 2011 partition (freebsd-boot) of a GPT partitioned drive ad0: 2012 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2013 2014 Non-boot pools do not need these updates. 2015 2016 To build a kernel 2017 ----------------- 2018 If you are updating from a prior version of FreeBSD (even one just 2019 a few days old), you should follow this procedure. It is the most 2020 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2021 2022 make kernel-toolchain 2023 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2024 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2025 2026 To test a kernel once 2027 --------------------- 2028 If you just want to boot a kernel once (because you are not sure 2029 if it works, or if you want to boot a known bad kernel to provide 2030 debugging information) run 2031 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2032 nextboot -k testkernel 2033 2034 To just build a kernel when you know that it won't mess you up 2035 -------------------------------------------------------------- 2036 This assumes you are already running a CURRENT system. Replace 2037 ${arch} with the architecture of your machine (e.g. "i386", 2038 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2039 2040 cd src/sys/${arch}/conf 2041 config KERNEL_NAME_HERE 2042 cd ../compile/KERNEL_NAME_HERE 2043 make depend 2044 make 2045 make install 2046 2047 If this fails, go to the "To build a kernel" section. 2048 2049 To rebuild everything and install it on the current system. 2050 ----------------------------------------------------------- 2051 # Note: sometimes if you are running current you gotta do more than 2052 # is listed here if you are upgrading from a really old current. 2053 2054 <make sure you have good level 0 dumps> 2055 make buildworld 2056 make kernel KERNCONF=YOUR_KERNEL_HERE 2057 [1] 2058 <reboot in single user> [3] 2059 mergemaster -p [5] 2060 make installworld 2061 mergemaster -i [4] 2062 make delete-old [6] 2063 <reboot> 2064 2065 To cross-install current onto a separate partition 2066 -------------------------------------------------- 2067 # In this approach we use a separate partition to hold 2068 # current's root, 'usr', and 'var' directories. A partition 2069 # holding "/", "/usr" and "/var" should be about 2GB in 2070 # size. 2071 2072 <make sure you have good level 0 dumps> 2073 <boot into -stable> 2074 make buildworld 2075 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2076 <maybe newfs current's root partition> 2077 <mount current's root partition on directory ${CURRENT_ROOT}> 2078 make installworld DESTDIR=${CURRENT_ROOT} 2079 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2080 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2081 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2082 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2083 <reboot into current> 2084 <do a "native" rebuild/install as described in the previous section> 2085 <maybe install compatibility libraries from ports/misc/compat*> 2086 <reboot> 2087 2088 2089 To upgrade in-place from stable to current 2090 ---------------------------------------------- 2091 <make sure you have good level 0 dumps> 2092 make buildworld [9] 2093 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2094 [1] 2095 <reboot in single user> [3] 2096 mergemaster -p [5] 2097 make installworld 2098 mergemaster -i [4] 2099 make delete-old [6] 2100 <reboot> 2101 2102 Make sure that you've read the UPDATING file to understand the 2103 tweaks to various things you need. At this point in the life 2104 cycle of current, things change often and you are on your own 2105 to cope. The defaults can also change, so please read ALL of 2106 the UPDATING entries. 2107 2108 Also, if you are tracking -current, you must be subscribed to 2109 freebsd-current@freebsd.org. Make sure that before you update 2110 your sources that you have read and understood all the recent 2111 messages there. If in doubt, please track -stable which has 2112 much fewer pitfalls. 2113 2114 [1] If you have third party modules, such as vmware, you 2115 should disable them at this point so they don't crash your 2116 system on reboot. 2117 2118 [3] From the bootblocks, boot -s, and then do 2119 fsck -p 2120 mount -u / 2121 mount -a 2122 cd src 2123 adjkerntz -i # if CMOS is wall time 2124 Also, when doing a major release upgrade, it is required that 2125 you boot into single user mode to do the installworld. 2126 2127 [4] Note: This step is non-optional. Failure to do this step 2128 can result in a significant reduction in the functionality of the 2129 system. Attempting to do it by hand is not recommended and those 2130 that pursue this avenue should read this file carefully, as well 2131 as the archives of freebsd-current and freebsd-hackers mailing lists 2132 for potential gotchas. The -U option is also useful to consider. 2133 See mergemaster(8) for more information. 2134 2135 [5] Usually this step is a noop. However, from time to time 2136 you may need to do this if you get unknown user in the following 2137 step. It never hurts to do it all the time. You may need to 2138 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2139 install) after the buildworld before this step if you last updated 2140 from current before 20130425 or from -stable before 20130430. 2141 2142 [6] This only deletes old files and directories. Old libraries 2143 can be deleted by "make delete-old-libs", but you have to make 2144 sure that no program is using those libraries anymore. 2145 2146 [8] In order to have a kernel that can run the 4.x binaries needed to 2147 do an installworld, you must include the COMPAT_FREEBSD4 option in 2148 your kernel. Failure to do so may leave you with a system that is 2149 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2150 required to run the 5.x binaries on more recent kernels. And so on 2151 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2152 2153 Make sure that you merge any new devices from GENERIC since the 2154 last time you updated your kernel config file. 2155 2156 [9] When checking out sources, you must include the -P flag to have 2157 cvs prune empty directories. 2158 2159 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2160 "?=" instead of the "=" assignment operator, so that buildworld can 2161 override the CPUTYPE if it needs to. 2162 2163 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2164 not on the command line, or in /etc/make.conf. buildworld will 2165 warn if it is improperly defined. 2166FORMAT: 2167 2168This file contains a list, in reverse chronological order, of major 2169breakages in tracking -current. It is not guaranteed to be a complete 2170list of such breakages, and only contains entries since October 10, 2007. 2171If you need to see UPDATING entries from before that date, you will need 2172to fetch an UPDATING file from an older FreeBSD release. 2173 2174Copyright information: 2175 2176Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2177 2178Redistribution, publication, translation and use, with or without 2179modification, in full or in part, in any form or format of this 2180document are permitted without further permission from the author. 2181 2182THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2183IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2184WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2185DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2186INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2187(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2188SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2189HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2190STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2191IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2192POSSIBILITY OF SUCH DAMAGE. 2193 2194Contact Warner Losh if you have any questions about your use of 2195this document. 2196 2197$FreeBSD: releng/10.1/UPDATING 280267 2015-03-19 17:41:17Z delphij $ 2198