UPDATING revision 284230
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 1920150609: p11 FreeBSD-EN-15:06.file 20 FreeBSD-EN-15:07.zfs 21 22 Updated base system file(1) to 5.22 to address multiple denial 23 of service issues. [EN-15:06] 24 25 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 26 [EN-15:07] 27 2820150513: p10 FreeBSD-EN-15:04.freebsd-update 29 FreeBSD-EN-15:05.ufs 30 31 Fix bug with freebsd-update(8) that does not ensure the previous 32 upgrade was completed. [EN-15:04] 33 34 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 35 3620150407: p9 FreeBSD-SA-15:04.igmp [revised] 37 FreeBSD-SA-15:07.ntp 38 FreeBSD-SA-15:08.bsdinstall 39 FreeBSD-SA-15:09.ipv6 40 41 Improved patch for SA-15:04.igmp. 42 43 Fix multiple vulnerabilities of ntp. [SA-15:07] 44 45 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 46 47 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 48 4920150320: p8 50 Fix patch for SA-15:06.openssl. 51 5220150319: p7 FreeBSD-SA-15:06.openssl 53 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 54 5520150225: p6 FreeBSD-SA-15:04.igmp 56 FreeBSD-EN-15:01.vt 57 FreeBSD-EN-15:02.openssl 58 FreeBSD-EN-15:03.freebsd-update 59 60 Fix integer overflow in IGMP protocol. [SA-15:04] 61 62 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 63 64 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 65 66 Fix freebsd-update libraries update ordering issue. [EN-15:03] 67 6820150127: p5 FreeBSD-SA-15:02.kmem 69 FreeBSD-SA-15:03.sctp 70 71 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 72 vulnerability. [SA-15:02] 73 74 Fix SCTP stream reset vulnerability. [SA-15:03] 75 7620150114: p4 FreeBSD-SA-15:01.openssl 77 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 78 7920141223: p3 FreeBSD-SA-14:31.ntp 80 FreeBSD-EN-14:13.freebsd-update 81 82 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 83 Fix directory deletion issue in freebsd-update. [EN-14:13] 84 8520141217: p2 FreeBSD-SA-14:30.unbound 86 Fix unbound remote denial of service vulnerability. 87 8820141210: p1 FreeBSD-SA-14:27.stdio 89 FreeBSD-SA-14:28.file 90 91 Fix buffer overflow in stdio. [SA-14:27] 92 93 Fix multiple vulnerabilities in file(1) and libmagic(3). 94 [SA-14:28] 95 9620140904: 97 The ofwfb driver, used to provide a graphics console on PowerPC when 98 using vt(4), no longer allows mmap() of all of physical memory. This 99 will prevent Xorg on PowerPC with some ATI graphics cards from 100 initializing properly unless x11-servers/xorg-server is updated to 101 1.12.4_8 or newer. 102 10320140831: 104 The libatf-c and libatf-c++ major versions were downgraded to 0 and 105 1 respectively to match the upstream numbers. They were out of 106 sync because, when they were originally added to FreeBSD, the 107 upstream versions were not respected. These libraries are private 108 and not yet built by default, so renumbering them should be a 109 non-issue. However, unclean source trees will yield broken test 110 programs once the operator executes "make delete-old-libs" after a 111 "make installworld". 112 113 Additionally, the atf-sh binary was made private by moving it into 114 /usr/libexec/. Already-built shell test programs will keep the 115 path to the old binary so they will break after "make delete-old" 116 is run. 117 118 If you are using WITH_TESTS=yes (not the default), wipe the object 119 tree and rebuild from scratch to prevent spurious test failures. 120 This is only needed once: the misnumbered libraries and misplaced 121 binaries have been added to OptionalObsoleteFiles.inc so they will 122 be removed during a clean upgrade. 123 12420140814: 125 The ixgbe tunables now match their sysctl counterparts, for example: 126 hw.ixgbe.enable_aim => hw.ix.enable_aim 127 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 128 12920140801: 130 The NFSv4.1 server committed by r269398 changes the internal 131 function call interfaces used between the NFS and krpc modules. 132 As such, __FreeBSD_version was bumped. 133 13420140729: 135 The default unbound configuration has been modified to address 136 issues with reverse lookups on networks that use private 137 address ranges. If you use the local_unbound service, run 138 "service local_unbound setup" as root to regenerate your 139 configuration, then "service local_unbound reload" to load the 140 new configuration. 141 14220140717: 143 It is no longer necessary to include the dwarf version in your DEBUG 144 options in your kernel config file. The bug that required it to be 145 placed in the config file has bene fixed. DEBUG should now just 146 contain -g. The build system will automatically update things 147 to do the right thing. 148 14920140715: 150 Several ABI breaking changes were merged to CTL and new iSCSI code. 151 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 152 iscsictl need to be rebuilt to work with a new kernel. 153 15420140708: 155 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 156 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 157 which differs from the behaviour controlled by this knob.) 158 15920140608: 160 On i386 and amd64 systems, the onifconsole flag is now set by default 161 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 162 as a login TTY if it is set in the bootloader as an active kernel 163 console. No changes in behavior should result otherwise. To revert to 164 the previous behavior, set ttyu0 to "off" in /etc/ttys. 165 16620140512: 167 Clang and llvm have been upgraded to 3.4.1 release. 168 16920140321: 170 Clang and llvm have been upgraded to 3.4 release. 171 17220140306: 173 If a Makefile in a tests/ directory was auto-generating a Kyuafile 174 instead of providing an explicit one, this would prevent such 175 Makefile from providing its own Kyuafile in the future during 176 NO_CLEAN builds. This has been fixed in the Makefiles but manual 177 intervention is needed to clean an objdir if you use NO_CLEAN: 178 # find /usr/obj -name Kyuafile | xargs rm -f 179 18020140303: 181 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 182 capability mode support. Please note that enabling the feature in 183 kernel is still highly recommended. 184 18520140227: 186 OpenSSH is now built with sandbox support, and will use sandbox as 187 the default privilege separation method. This requires Capsicum 188 capability mode support in kernel. 189 19020140216: 191 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 192 been deprecated and will not be part of FreeBSD 11.0 and later 193 releases. If you use this driver, please consider switching to 194 the nfe(4) driver instead. 195 19620140120: 197 10.0-RELEASE. 198 19920131216: 200 The behavior of gss_pseudo_random() for the krb5 mechanism 201 has changed, for applications requesting a longer random string 202 than produced by the underlying enctype's pseudo-random() function. 203 In particular, the random string produced from a session key of 204 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 205 be different at the 17th octet and later, after this change. 206 The counter used in the PRF+ construction is now encoded as a 207 big-endian integer in accordance with RFC 4402. 208 __FreeBSD_version is bumped to 1000701. 209 21020131108: 211 The WITHOUT_ATF build knob has been removed and its functionality 212 has been subsumed into the more generic WITHOUT_TESTS. If you were 213 using the former to disable the build of the ATF libraries, you 214 should change your settings to use the latter. 215 21620131031: 217 The default version of mtree is nmtree which is obtained from 218 NetBSD. The output is generally the same, but may vary 219 slightly. If you found you need identical output adding 220 "-F freebsd9" to the command line should do the trick. For the 221 time being, the old mtree is available as fmtree. 222 22320131014: 224 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 225 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 226 1.1.4_8 and verify bsdyml not linked in, before running "make 227 delete-old-libs": 228 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 229 or 230 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 231 23220131010: 233 The rc.d/jail script has been updated to support jail(8) 234 configuration file. The "jail_<jname>_*" rc.conf(5) variables 235 for per-jail configuration are automatically converted to 236 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 237 This is transparently backward compatible. See below about some 238 incompatibilities and rc.conf(5) manual page for more details. 239 240 These variables are now deprecated in favor of jail(8) configuration 241 file. One can use "rc.d/jail config <jname>" command to generate 242 a jail(8) configuration file in /var/run/jail.<jname>.conf without 243 running the jail(8) utility. The default pathname of the 244 configuration file is /etc/jail.conf and can be specified by 245 using $jail_conf or $jail_<jname>_conf variables. 246 247 Please note that jail_devfs_ruleset accepts an integer at 248 this moment. Please consider to rewrite the ruleset name 249 with an integer. 250 25120130930: 252 BIND has been removed from the base system. If all you need 253 is a local resolver, simply enable and start the local_unbound 254 service instead. Otherwise, several versions of BIND are 255 available in the ports tree. The dns/bind99 port is one example. 256 257 With this change, nslookup(1) and dig(1) are no longer in the base 258 system. Users should instead use host(1) and drill(1) which are 259 in the base system. Alternatively, nslookup and dig can 260 be obtained by installing the dns/bind-tools port. 261 26220130916: 263 With the addition of unbound(8), a new unbound user is now 264 required during installworld. "mergemaster -p" can be used to 265 add the user prior to installworld, as documented in the handbook. 266 26720130911: 268 OpenSSH is now built with DNSSEC support, and will by default 269 silently trust signed SSHFP records. This can be controlled with 270 the VerifyHostKeyDNS client configuration setting. DNSSEC support 271 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 272 27320130906: 274 The GNU Compiler Collection and C++ standard library (libstdc++) 275 are no longer built by default on platforms where clang is the system 276 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 277 options in src.conf. 278 27920130905: 280 The PROCDESC kernel option is now part of the GENERIC kernel 281 configuration and is required for the rwhod(8) to work. 282 If you are using custom kernel configuration, you should include 283 'options PROCDESC'. 284 28520130905: 286 The API and ABI related to the Capsicum framework was modified 287 in backward incompatible way. The userland libraries and programs 288 have to be recompiled to work with the new kernel. This includes the 289 following libraries and programs, but the whole buildworld is 290 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 291 kdump, procstat, rwho, rwhod, uniq. 292 29320130903: 294 AES-NI intrinsic support has been added to gcc. The AES-NI module 295 has been updated to use this support. A new gcc is required to build 296 the aesni module on both i386 and amd64. 297 29820130821: 299 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 300 Thus "device padlock_rng" and "device rdrand_rng" should be 301 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 302 30320130813: 304 WITH_ICONV has been split into two feature sets. WITH_ICONV now 305 enables just the iconv* functionality and is now on by default. 306 WITH_LIBICONV_COMPAT enables the libiconv api and link time 307 compatability. Set WITHOUT_ICONV to build the old way. 308 If you have been using WITH_ICONV before, you will very likely 309 need to turn on WITH_LIBICONV_COMPAT. 310 31120130806: 312 INVARIANTS option now enables DEBUG for code with OpenSolaris and 313 Illumos origin, including ZFS. If you have INVARIANTS in your 314 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 315 explicitly. 316 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 317 locks if WITNESS option was set. Because that generated a lot of 318 witness(9) reports and all of them were believed to be false 319 positives, this is no longer done. New option OPENSOLARIS_WITNESS 320 can be used to achieve the previous behavior. 321 32220130806: 323 Timer values in IPv6 data structures now use time_uptime instead 324 of time_second. Although this is not a user-visible functional 325 change, userland utilities which directly use them---ndp(8), 326 rtadvd(8), and rtsold(8) in the base system---need to be updated 327 to r253970 or later. 328 32920130802: 330 find -delete can now delete the pathnames given as arguments, 331 instead of only files found below them or if the pathname did 332 not contain any slashes. Formerly, the following error message 333 would result: 334 335 find: -delete: <path>: relative path potentially not safe 336 337 Deleting the pathnames given as arguments can be prevented 338 without error messages using -mindepth 1 or by changing 339 directory and passing "." as argument to find. This works in the 340 old as well as the new version of find. 341 34220130726: 343 Behavior of devfs rules path matching has been changed. 344 Pattern is now always matched against fully qualified devfs 345 path and slash characters must be explicitly matched by 346 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 347 subdirectories must be reviewed. 348 34920130716: 350 The default ARM ABI has changed to the ARM EABI. The old ABI is 351 incompatible with the ARM EABI and all programs and modules will 352 need to be rebuilt to work with a new kernel. 353 354 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 355 356 NOTE: Support for the old ABI will be removed in the future and 357 users are advised to upgrade. 358 35920130709: 360 pkg_install has been disconnected from the build if you really need it 361 you should add WITH_PKGTOOLS in your src.conf(5). 362 36320130709: 364 Most of network statistics structures were changed to be able 365 keep 64-bits counters. Thus all tools, that work with networking 366 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 367 36820130629: 369 Fix targets that run multiple make's to use && rather than ; 370 so that subsequent steps depend on success of previous. 371 372 NOTE: if building 'universe' with -j* on stable/8 or stable/9 373 it would be better to start the build using bmake, to avoid 374 overloading the machine. 375 37620130618: 377 Fix a bug that allowed a tracing process (e.g. gdb) to write 378 to a memory-mapped file in the traced process's address space 379 even if neither the traced process nor the tracing process had 380 write access to that file. 381 38220130615: 383 CVS has been removed from the base system. An exact copy 384 of the code is available from the devel/cvs port. 385 38620130613: 387 Some people report the following error after the switch to bmake: 388 389 make: illegal option -- J 390 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 391 ... 392 *** [buildworld] Error code 2 393 394 this likely due to an old instance of make in 395 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 396 which src/Makefile will use that blindly, if it exists, so if 397 you see the above error: 398 399 rm -rf `make -V MAKEPATH` 400 401 should resolve it. 402 40320130516: 404 Use bmake by default. 405 Whereas before one could choose to build with bmake via 406 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 407 make. The goal is to remove these knobs for 10-RELEASE. 408 409 It is worth noting that bmake (like gmake) treats the command 410 line as the unit of failure, rather than statements within the 411 command line. Thus '(cd some/where && dosomething)' is safer 412 than 'cd some/where; dosomething'. The '()' allows consistent 413 behavior in parallel build. 414 41520130429: 416 Fix a bug that allows NFS clients to issue READDIR on files. 417 41820130426: 419 The WITHOUT_IDEA option has been removed because 420 the IDEA patent expired. 421 42220130426: 423 The sysctl which controls TRIM support under ZFS has been renamed 424 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 425 enabled by default. 426 42720130425: 428 The mergemaster command now uses the default MAKEOBJDIRPREFIX 429 rather than creating it's own in the temporary directory in 430 order allow access to bootstrapped versions of tools such as 431 install and mtree. When upgrading from version of FreeBSD where 432 the install command does not support -l, you will need to 433 install a new mergemaster command if mergemaster -p is required. 434 This can be accomplished with the command (cd src/usr.sbin/mergemaster 435 && make install). 436 43720130404: 438 Legacy ATA stack, disabled and replaced by new CAM-based one since 439 FreeBSD 9.0, completely removed from the sources. Kernel modules 440 atadisk and atapi*, user-level tools atacontrol and burncd are 441 removed. Kernel option `options ATA_CAM` is now permanently enabled 442 and removed. 443 44420130319: 445 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 446 and socketpair(2). Software, in particular Kerberos, may 447 automatically detect and use these during building. The resulting 448 binaries will not work on older kernels. 449 45020130308: 451 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 452 information, see the respective 20130304 entry). 453 45420130304: 455 Recent commits to callout(9) changed the size of struct callout, 456 so the KBI is probably heavily disturbed. Also, some functions 457 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 458 by macros. Every kernel module using it won't load, so rebuild 459 is requested. 460 461 The ctl device has been re-enabled in GENERIC for i386 and amd64, 462 but does not initialize by default (because of the new CTL_DISABLE 463 option) to save memory. To re-enable it, remove the CTL_DISABLE 464 option from the kernel config file or set kern.cam.ctl.disable=0 465 in /boot/loader.conf. 466 46720130301: 468 The ctl device has been disabled in GENERIC for i386 and amd64. 469 This was done due to the extra memory being allocated at system 470 initialisation time by the ctl driver which was only used if 471 a CAM target device was created. This makes a FreeBSD system 472 unusable on 128MB or less of RAM. 473 47420130208: 475 A new compression method (lz4) has been merged to -HEAD. Please 476 refer to zpool-features(7) for more information. 477 478 Please refer to the "ZFS notes" section of this file for information 479 on upgrading boot ZFS pools. 480 48120130129: 482 A BSD-licensed patch(1) variant has been added and is installed 483 as bsdpatch, being the GNU version the default patch. 484 To inverse the logic and use the BSD-licensed one as default, 485 while having the GNU version installed as gnupatch, rebuild 486 and install world with the WITH_BSD_PATCH knob set. 487 48820130121: 489 Due to the use of the new -l option to install(1) during build 490 and install, you must take care not to directly set the INSTALL 491 make variable in your /etc/make.conf, /etc/src.conf, or on the 492 command line. If you wish to use the -C flag for all installs 493 you may be able to add INSTALL+=-C to /etc/make.conf or 494 /etc/src.conf. 495 49620130118: 497 The install(1) option -M has changed meaning and now takes an 498 argument that is a file or path to append logs to. In the 499 unlikely event that -M was the last option on the command line 500 and the command line contained at least two files and a target 501 directory the first file will have logs appended to it. The -M 502 option served little practical purpose in the last decade so its 503 use is expected to be extremely rare. 504 50520121223: 506 After switching to Clang as the default compiler some users of ZFS 507 on i386 systems started to experience stack overflow kernel panics. 508 Please consider using 'options KSTACK_PAGES=4' in such configurations. 509 51020121222: 511 GEOM_LABEL now mangles label names read from file system metadata. 512 Mangling affect labels containing spaces, non-printable characters, 513 '%' or '"'. Device names in /etc/fstab and other places may need to 514 be updated. 515 51620121217: 517 By default, only the 10 most recent kernel dumps will be saved. To 518 restore the previous behaviour (no limit on the number of kernel dumps 519 stored in the dump directory) add the following line to /etc/rc.conf: 520 521 savecore_flags="" 522 52320121201: 524 With the addition of auditdistd(8), a new auditdistd user is now 525 required during installworld. "mergemaster -p" can be used to 526 add the user prior to installworld, as documented in the handbook. 527 52820121117: 529 The sin6_scope_id member variable in struct sockaddr_in6 is now 530 filled by the kernel before passing the structure to the userland via 531 sysctl or routing socket. This means the KAME-specific embedded scope 532 id in sin6_addr.s6_addr[2] is always cleared in userland application. 533 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 534 __FreeBSD_version is bumped to 1000025. 535 53620121105: 537 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 538 This means that the world and kernel will be compiled with clang 539 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 540 and /usr/bin/cpp. To disable this behavior and revert to building 541 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 542 of current may need to bootstrap WITHOUT_CLANG first if the clang 543 build fails (its compatibility window doesn't extend to the 9 stable 544 branch point). 545 54620121102: 547 The IPFIREWALL_FORWARD kernel option has been removed. Its 548 functionality now turned on by default. 549 55020121023: 551 The ZERO_COPY_SOCKET kernel option has been removed and 552 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 553 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 554 mechanism which is not safe and may result in kernel crashes. 555 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 556 driver supports disposeable external page sized mbuf storage. 557 Proper replacements for both zero-copy mechanisms are under 558 consideration and will eventually lead to complete removal 559 of the two kernel options. 560 56120121023: 562 The IPv4 network stack has been converted to network byte 563 order. The following modules need to be recompiled together 564 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 565 pf(4), ipfw(4), ng_ipfw(4), stf(4). 566 56720121022: 568 Support for non-MPSAFE filesystems was removed from VFS. The 569 VFS_VERSION was bumped, all filesystem modules shall be 570 recompiled. 571 57220121018: 573 All the non-MPSAFE filesystems have been disconnected from 574 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 575 portalfs, smbfs, xfs. 576 57720121016: 578 The interface cloning API and ABI has changed. The following 579 modules need to be recompiled together with kernel: 580 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 581 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 582 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 583 58420121015: 585 The sdhci driver was split in two parts: sdhci (generic SD Host 586 Controller logic) and sdhci_pci (actual hardware driver). 587 No kernel config modifications are required, but if you 588 load sdhc as a module you must switch to sdhci_pci instead. 589 59020121014: 591 Import the FUSE kernel and userland support into base system. 592 59320121013: 594 The GNU sort(1) program has been removed since the BSD-licensed 595 sort(1) has been the default for quite some time and no serious 596 problems have been reported. The corresponding WITH_GNU_SORT 597 knob has also gone. 598 59920121006: 600 The pfil(9) API/ABI for AF_INET family has been changed. Packet 601 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 602 with new kernel. 603 60420121001: 605 The net80211(4) ABI has been changed to allow for improved driver 606 PS-POLL and power-save support. All wireless drivers need to be 607 recompiled to work with the new kernel. 608 60920120913: 610 The random(4) support for the VIA hardware random number 611 generator (`PADLOCK') is no longer enabled unconditionally. 612 Add the padlock_rng device in the custom kernel config if 613 needed. The GENERIC kernels on i386 and amd64 do include the 614 device, so the change only affects the custom kernel 615 configurations. 616 61720120908: 618 The pf(4) packet filter ABI has been changed. pfctl(8) and 619 snmp_pf module need to be recompiled to work with new kernel. 620 62120120828: 622 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 623 to -HEAD. Pools that have empty_bpobj in active state can not be 624 imported read-write with ZFS implementations that do not support 625 this feature. For more information read the zpool-features(5) 626 manual page. 627 62820120727: 629 The sparc64 ZFS loader has been changed to no longer try to auto- 630 detect ZFS providers based on diskN aliases but now requires these 631 to be explicitly listed in the OFW boot-device environment variable. 632 63320120712: 634 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 635 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 636 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 637 63820120712: 639 The following sysctls and tunables have been renamed for consistency 640 with other variables: 641 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 642 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 643 64420120628: 645 The sort utility has been replaced with BSD sort. For now, GNU sort 646 is also available as "gnusort" or the default can be set back to 647 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 648 installed as "bsdsort". 649 65020120611: 651 A new version of ZFS (pool version 5000) has been merged to -HEAD. 652 Starting with this version the old system of ZFS pool versioning 653 is superseded by "feature flags". This concept enables forward 654 compatibility against certain future changes in functionality of ZFS 655 pools. The first read-only compatible "feature flag" for ZFS pools 656 is named "com.delphix:async_destroy". For more information 657 read the new zpool-features(5) manual page. 658 Please refer to the "ZFS notes" section of this file for information 659 on upgrading boot ZFS pools. 660 66120120417: 662 The malloc(3) implementation embedded in libc now uses sources imported 663 as contrib/jemalloc. The most disruptive API change is to 664 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 665 delete it prior to installworld, and optionally re-create it using the 666 new format after rebooting. See malloc.conf(5) for details 667 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 668 NAMESPACE section). 669 67020120328: 671 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 672 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 673 now spelled mips. This is to aid compatibility with third-party 674 software that expects this naming scheme in uname(3). Little-endian 675 settings are unchanged. If you are updating a big-endian mips64 machine 676 from before this change, you may need to set MACHINE_ARCH=mips64 in 677 your environment before the new build system will recognize your machine. 678 67920120306: 680 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 681 platforms. 682 68320120229: 684 Now unix domain sockets behave "as expected" on nullfs(5). Previously 685 nullfs(5) did not pass through all behaviours to the underlying layer, 686 as a result if we bound to a socket on the lower layer we could connect 687 only to the lower path; if we bound to the upper layer we could connect 688 only to the upper path. The new behavior is one can connect to both the 689 lower and the upper paths regardless what layer path one binds to. 690 69120120211: 692 The getifaddrs upgrade path broken with 20111215 has been restored. 693 If you have upgraded in between 20111215 and 20120209 you need to 694 recompile libc again with your kernel. You still need to recompile 695 world to be able to configure CARP but this restriction already 696 comes from 20111215. 697 69820120114: 699 The set_rcvar() function has been removed from /etc/rc.subr. All 700 base and ports rc.d scripts have been updated, so if you have a 701 port installed with a script in /usr/local/etc/rc.d you can either 702 hand-edit the rcvar= line, or reinstall the port. 703 704 An easy way to handle the mass-update of /etc/rc.d: 705 rm /etc/rc.d/* && mergemaster -i 706 70720120109: 708 panic(9) now stops other CPUs in the SMP systems, disables interrupts 709 on the current CPU and prevents other threads from running. 710 This behavior can be reverted using the kern.stop_scheduler_on_panic 711 tunable/sysctl. 712 The new behavior can be incompatible with kern.sync_on_panic. 713 71420111215: 715 The carp(4) facility has been changed significantly. Configuration 716 of the CARP protocol via ifconfig(8) has changed, as well as format 717 of CARP events submitted to devd(8) has changed. See manual pages 718 for more information. The arpbalance feature of carp(4) is currently 719 not supported anymore. 720 721 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 722 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 723 need to be recompiled. 724 72520111122: 726 The acpi_wmi(4) status device /dev/wmistat has been renamed to 727 /dev/wmistat0. 728 72920111108: 730 The option VFS_ALLOW_NONMPSAFE option has been added in order to 731 explicitely support non-MPSAFE filesystems. 732 It is on by default for all supported platform at this present 733 time. 734 73520111101: 736 The broken amd(4) driver has been replaced with esp(4) in the amd64, 737 i386 and pc98 GENERIC kernel configuration files. 738 73920110930: 740 sysinstall has been removed 741 74220110923: 743 The stable/9 branch created in subversion. This corresponds to the 744 RELENG_9 branch in CVS. 745 74620110913: 747 This commit modifies vfs_register() so that it uses a hash 748 calculation to set vfc_typenum, which is enabled by default. 749 The first time a system is booted after this change, the 750 vfc_typenum values will change for all file systems. The 751 main effect of this is a change to the NFS server file handles 752 for file systems that use vfc_typenum in their fsid, such as ZFS. 753 It will, however, prevent vfc_typenum from changing when file 754 systems are loaded in a different order for subsequent reboots. 755 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 756 until you are ready to remount all NFS clients after a reboot. 757 75820110828: 759 Bump the shared library version numbers for libraries that 760 do not use symbol versioning, have changed the ABI compared 761 to stable/8 and which shared library version was not bumped. 762 Done as part of 9.0-RELEASE cycle. 763 76420110815: 765 During the merge of Capsicum features, the fget(9) KPI was modified. 766 This may require the rebuilding of out-of-tree device drivers -- 767 issues have been reported specifically with the nVidia device driver. 768 __FreeBSD_version is bumped to 900041. 769 770 Also, there is a period between 20110811 and 20110814 where the 771 special devices /dev/{stdin,stdout,stderr} did not work correctly. 772 Building world from a kernel during that window may not work. 773 77420110628: 775 The packet filter (pf) code has been updated to OpenBSD 4.5. 776 You need to update userland tools to be in sync with kernel. 777 This update breaks backward compatibility with earlier pfsync(4) 778 versions. Care must be taken when updating redundant firewall setups. 779 78020110608: 781 The following sysctls and tunables are retired on x86 platforms: 782 machdep.hlt_cpus 783 machdep.hlt_logical_cpus 784 The following sysctl is retired: 785 machdep.hyperthreading_allowed 786 The sysctls were supposed to provide a way to dynamically offline and 787 online selected CPUs on x86 platforms, but the implementation has not 788 been reliable especially with SCHED_ULE scheduler. 789 machdep.hyperthreading_allowed tunable is still available to ignore 790 hyperthreading CPUs at OS level. 791 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 792 where X is an APIC ID of a CPU. Be advised, though, that disabling 793 CPUs in non-uniform fashion will result in non-uniform topology and 794 may lead to sub-optimal system performance with SCHED_ULE, which is 795 a default scheduler. 796 79720110607: 798 cpumask_t type is retired and cpuset_t is used in order to describe 799 a mask of CPUs. 800 80120110531: 802 Changes to ifconfig(8) for dynamic address family detection mandate 803 that you are running a kernel of 20110525 or later. Make sure to 804 follow the update procedure to boot a new kernel before installing 805 world. 806 80720110513: 808 Support for sun4v architecture is officially dropped 809 81020110503: 811 Several KPI breaking changes have been committed to the mii(4) layer, 812 the PHY drivers and consequently some Ethernet drivers using mii(4). 813 This means that miibus.ko and the modules of the affected Ethernet 814 drivers need to be recompiled. 815 816 Note to kernel developers: Given that the OUI bit reversion problem 817 was fixed as part of these changes all mii(4) commits related to OUIs, 818 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 819 handling, no longer can be merged verbatim to stable/8 and previous 820 branches. 821 82220110430: 823 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 824 into their kernel configurations along with 'device pci'. 825 82620110427: 827 The default NFS client is now the new NFS client, so fstype "newnfs" 828 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 829 Although mounts via fstype "nfs" will usually work without userland 830 changes, it is recommended that the mount(8) and mount_nfs(8) 831 commands be rebuilt from sources and that a link to mount_nfs called 832 mount_oldnfs be created. The new client is compiled into the 833 kernel with "options NFSCL" and this is needed for diskless root 834 file systems. The GENERIC kernel configs have been changed to use 835 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 836 To use the regular/old client, you can "mount -t oldnfs ...". For 837 a diskless root file system, you must also include a line like: 838 839 vfs.root.mountfrom="oldnfs:" 840 841 in the boot/loader.conf on the root fs on the NFS server to make 842 a diskless root fs use the old client. 843 84420110424: 845 The GENERIC kernels for all architectures now default to the new 846 CAM-based ATA stack. It means that all legacy ATA drivers were 847 removed and replaced by respective CAM drivers. If you are using 848 ATA device names in /etc/fstab or other places, make sure to update 849 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 850 where 'Y's are the sequential numbers starting from zero for each type 851 in order of detection, unless configured otherwise with tunables, 852 see cam(4)). There will be symbolic links created in /dev/ to map 853 old adX devices to the respective adaY. They should provide basic 854 compatibility for file systems mounting in most cases, but they do 855 not support old user-level APIs and do not have respective providers 856 in GEOM. Consider using updated management tools with new device names. 857 858 It is possible to load devices ahci, ata, siis and mvs as modules, 859 but option ATA_CAM should remain in kernel configuration to make ata 860 module work as CAM driver supporting legacy ATA controllers. Device ata 861 still can be used in modular fashion (atacore + ...). Modules atadisk 862 and atapi* are not used and won't affect operation in ATA_CAM mode. 863 Note that to use CAM-based ATA kernel should include CAM devices 864 scbus, pass, da (or explicitly ada), cd and optionally others. All of 865 them are parts of the cam module. 866 867 ataraid(4) functionality is now supported by the RAID GEOM class. 868 To use it you can load geom_raid kernel module and use graid(8) tool 869 for management. Instead of /dev/arX device names, use /dev/raid/rX. 870 871 No kernel config options or code have been removed, so if a problem 872 arises, please report it and optionally revert to the old ATA stack. 873 In order to do it you can remove from the kernel config: 874 options ATA_CAM 875 device ahci 876 device mvs 877 device siis 878 , and instead add back: 879 device atadisk # ATA disk drives 880 device ataraid # ATA RAID drives 881 device atapicd # ATAPI CDROM drives 882 device atapifd # ATAPI floppy drives 883 device atapist # ATAPI tape drives 884 88520110423: 886 The default NFS server has been changed to the new server, which 887 was referred to as the experimental server. If you need to switch 888 back to the old NFS server, you must now put the "-o" option on 889 both the mountd and nfsd commands. This can be done using the 890 mountd_flags and nfs_server_flags rc.conf variables until an 891 update to the rc scripts is committed, which is coming soon. 892 89320110418: 894 The GNU Objective-C runtime library (libobjc), and other Objective-C 895 related components have been removed from the base system. If you 896 require an Objective-C library, please use one of the available ports. 897 89820110331: 899 ath(4) has been split into bus- and device- modules. if_ath contains 900 the HAL, the TX rate control and the network device code. if_ath_pci 901 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 902 contains the AHB glue. Users need to load both if_ath_pci and if_ath 903 in order to use ath on everything else. 904 905 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 906 need to load if_ath and if_ath_pci for ath(4) operation. 907 90820110314: 909 As part of the replacement of sysinstall, the process of building 910 release media has changed significantly. For details, please re-read 911 release(7), which has been updated to reflect the new build process. 912 91320110218: 914 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 915 is the last available version under GPLv2. It brings a number of new 916 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 917 4.1 and SSE 4.2), better support for powerpc64, a number of new 918 directives, and lots of other small improvements. See the ChangeLog 919 file in contrib/binutils for the full details. 920 92120110218: 922 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 923 compliant, and will now use half of hash for authentication. 924 This will break interoperability with all stacks (including all 925 actual FreeBSD versions) who implement 926 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 927 authentication). 928 The only workaround with such peers is to use another HMAC 929 algorithm for IPsec ("phase 2") authentication. 930 93120110207: 932 Remove the uio_yield prototype and symbol. This function has 933 been misnamed since it was introduced and should not be 934 globally exposed with this name. The equivalent functionality 935 is now available using kern_yield(curthread->td_user_pri). 936 The function remains undocumented. 937 93820110112: 939 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 940 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 941 for scalar sysctls is defined but disabled. Code that needs 942 UQUAD to pass the type checking that must compile on older 943 systems where the define is not present can check against 944 __FreeBSD_version >= 900030. 945 946 The system dialog(1) has been replaced with a new version previously 947 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 948 with the previous version, but the libdialog associated with it has 949 a largely incompatible API. As such, the original version of libdialog 950 will be kept temporarily as libodialog, until its base system consumers 951 are replaced or updated. Bump __FreeBSD_version to 900030. 952 95320110103: 954 If you are trying to run make universe on a -stable system, and you get 955 the following warning: 956 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 957 unknown. config(8) likely too old." 958 or something similar to it, then you must upgrade your -stable system 959 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 960 stable/8) or build the config from the latest stable/8 branch and 961 install it on your system. 962 963 Prior to this date, building a current universe on 8-stable system from 964 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 965 error in the first kernel build phase. A new config on those old 966 systems will fix that problem for older versions of -current. 967 96820101228: 969 The TCP stack has been modified to allow Khelp modules to interact with 970 it via helper hook points and store per-connection data in the TCP 971 control block. Bump __FreeBSD_version to 900029. User space tools that 972 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 973 be recompiled. 974 97520101114: 976 Generic IEEE 802.3 annex 31B full duplex flow control support has been 977 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 978 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 979 to take advantage of it instead of using custom implementations. This 980 means that these drivers now no longer unconditionally advertise 981 support for flow control but only do so if flow control is a selected 982 media option. This was implemented in the generic support that way in 983 order to allow flow control to be switched on and off via ifconfig(8) 984 with the PHY specific default to typically off in order to protect 985 from unwanted effects. Consequently, if you used flow control with 986 one of the above mentioned drivers you now need to explicitly enable 987 it, for example via: 988 ifconfig bge0 media auto mediaopt flowcontrol 989 990 Along with the above mentioned changes generic support for setting 991 1000baseT master mode also has been added and brgphy(4), ciphy(4), 992 e1000phy(4) as well as ip1000phy(4) have been converted to take 993 advantage of it. This means that these drivers now no longer take the 994 link0 parameter for selecting master mode but the master media option 995 has to be used instead, for example like in the following: 996 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 997 998 Selection of master mode now is also available with all other PHY 999 drivers supporting 1000baseT. 1000 100120101111: 1002 The TCP stack has received a significant update to add support for 1003 modularised congestion control and generally improve the clarity of 1004 congestion control decisions. Bump __FreeBSD_version to 900025. User 1005 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1006 sockstat) need to be recompiled. 1007 100820101002: 1009 The man(1) utility has been replaced by a new version that no longer 1010 uses /etc/manpath.config. Please consult man.conf(5) for how to 1011 migrate local entries to the new format. 1012 101320100928: 1014 The copyright strings printed by login(1) and sshd(8) at the time of a 1015 new connection have been removed to follow other operating systems and 1016 upstream sshd. 1017 101820100915: 1019 A workaround for a fixed ld bug has been removed in kernel code, 1020 so make sure that your system ld is built from sources after 1021 revision 210245 from 2010-07-19 (r211583 if building head kernel 1022 on stable/8, r211584 for stable/7; both from 2010-08-21). 1023 A symptom of incorrect ld version is different addresses for 1024 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1025 102620100913: 1027 The $ipv6_prefer variable in rc.conf(5) has been split into 1028 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1029 1030 The $ip6addrctl_policy is a variable to choose a pre-defined 1031 address selection policy set by ip6addrctl(8). A value 1032 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1033 default is "AUTO". 1034 1035 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1036 flag (see an entry of 20090926) is set on an interface with no 1037 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1038 security reason. If you want IPv6 link-local address on all 1039 interfaces by default, set this to "YES". 1040 1041 The old ipv6_prefer="YES" is equivalent to 1042 ipv6_activate_all_interfaces="YES" and 1043 ip6addrctl_policy="ipv6_prefer". 1044 104520100913: 1046 DTrace has grown support for userland tracing. Due to this, DTrace is 1047 now i386 and amd64 only. 1048 dtruss(1) is now installed by default on those systems and a new 1049 kernel module is needed for userland tracing: fasttrap. 1050 No changes to your kernel config file are necessary to enable 1051 userland tracing, but you might consider adding 'STRIP=' and 1052 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1053 to have informative userland stack traces in DTrace (ustack). 1054 105520100725: 1056 The acpi_aiboost(4) driver has been removed in favor of the new 1057 aibs(4) driver. You should update your kernel configuration file. 1058 105920100722: 1060 BSD grep has been imported to the base system and it is built by 1061 default. It is completely BSD licensed, highly GNU-compatible, uses 1062 less memory than its GNU counterpart and has a small codebase. 1063 However, it is slower than its GNU counterpart, which is mostly 1064 noticeable for larger searches, for smaller ones it is measurable 1065 but not significant. The reason is complex, the most important factor 1066 is that we lack a modern and efficient regex library and GNU 1067 overcomes this by optimizing the searches internally. Future work 1068 on improving the regex performance is planned, for the meantime, 1069 users that need better performance, can build GNU grep instead by 1070 setting the WITH_GNU_GREP knob. 1071 107220100713: 1073 Due to the import of powerpc64 support, all existing powerpc kernel 1074 configuration files must be updated with a machine directive like this: 1075 machine powerpc powerpc 1076 1077 In addition, an updated config(8) is required to build powerpc kernels 1078 after this change. 1079 108020100713: 1081 A new version of ZFS (version 15) has been merged to -HEAD. 1082 This version uses a python library for the following subcommands: 1083 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1084 For full functionality of these commands the following port must 1085 be installed: sysutils/py-zfs 1086 108720100429: 1088 'vm_page's are now hashed by physical address to an array of mutexes. 1089 Currently this is only used to serialize access to hold_count. Over 1090 time the page queue mutex will be peeled away. This changes the size 1091 of pmap on every architecture. And requires all callers of vm_page_hold 1092 and vm_page_unhold to be updated. 1093 109420100402: 1095 WITH_CTF can now be specified in src.conf (not recommended, there 1096 are some problems with static executables), make.conf (would also 1097 affect ports which do not use GNU make and do not override the 1098 compile targets) or in the kernel config (via "makeoptions 1099 WITH_CTF=yes"). 1100 When WITH_CTF was specified there before this was silently ignored, 1101 so make sure that WITH_CTF is not used in places which could lead 1102 to unwanted behavior. 1103 110420100311: 1105 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1106 to allow 32-bit compatibility on non-x86 platforms. All kernel 1107 configurations on amd64 and ia64 platforms using these options must 1108 be modified accordingly. 1109 111020100113: 1111 The utmp user accounting database has been replaced with utmpx, 1112 the user accounting interface standardized by POSIX. 1113 Unfortunately the semantics of utmp and utmpx don't match, 1114 making it practically impossible to support both interfaces. 1115 The user accounting database is used by tools like finger(1), 1116 last(1), talk(1), w(1) and ac(8). 1117 1118 All applications in the base system use utmpx. This means only 1119 local binaries (e.g. from the ports tree) may still use these 1120 utmp database files. These applications must be rebuilt to make 1121 use of utmpx. 1122 1123 After the system has been upgraded, it is safe to remove the old 1124 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1125 assuming their contents is of no importance anymore. Old wtmp 1126 databases can only be used by last(1) and ac(8) after they have 1127 been converted to the new format using wtmpcvt(1). 1128 112920100108: 1130 Introduce the kernel thread "deadlock resolver" (which can be enabled 1131 via the DEADLKRES option, see NOTES for more details) and the 1132 sleepq_type() function for sleepqueues. 1133 113420091202: 1135 The rc.firewall and rc.firewall6 were unified, and 1136 rc.firewall6 and rc.d/ip6fw were removed. 1137 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1138 variables are obsoleted. Instead, the following new rc 1139 variables are added to rc.d/ipfw: 1140 1141 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1142 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1143 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1144 1145 The meanings correspond to the relevant IPv4 variables. 1146 114720091125: 1148 8.0-RELEASE. 1149 115020091113: 1151 The default terminal emulation for syscons(4) has been changed 1152 from cons25 to xterm on all platforms except pc98. This means 1153 that the /etc/ttys file needs to be updated to ensure correct 1154 operation of applications on the console. 1155 1156 The terminal emulation style can be toggled per window by using 1157 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1158 options can be used to change the compile-time default back to 1159 cons25. 1160 1161 To prevent graphical artifacts, make sure the TERM environment 1162 variable is set to match the terminal emulation that is being 1163 performed by syscons(4). 1164 116520091109: 1166 The layout of the structure ieee80211req_scan_result has changed. 1167 Applications that require wireless scan results (e.g. ifconfig(8)) 1168 from net80211 need to be recompiled. 1169 1170 Applications such as wpa_supplicant(8) may require a full world 1171 build without using NO_CLEAN in order to get synchronized with the 1172 new structure. 1173 117420091025: 1175 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1176 There's one kernel module for each firmware. Adding "device iwnfw" 1177 to the kernel configuration file means including all three firmware 1178 images inside the kernel. If you want to include just the one for 1179 your wireless card, use the devices iwn4965fw, iwn5000fw or 1180 iwn5150fw. 1181 118220090926: 1183 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1184 into rc.d/netif. The changes are the following: 1185 1186 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1187 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1188 Note that both variables need the "inet6" keyword at the head. 1189 1190 Do not set $ipv6_network_interfaces manually if you do not 1191 understand what you are doing. It is not needed in most cases. 1192 1193 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1194 they are obsolete. 1195 1196 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1197 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1198 1199 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1200 all configured interfaces have "inet6 accept_rtadv" in the 1201 $ifconfig_IF_ipv6. These are for backward compatibility. 1202 1203 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1204 functionality of interfaces with no corresponding 1205 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1206 and the default address selection policy of ip6addrctl(8) 1207 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1208 Note that if you want to configure IPv6 functionality on the 1209 disabled interfaces after boot, first you need to clear the flag by 1210 using ifconfig(8) like: 1211 1212 ifconfig em0 inet6 -ifdisabled 1213 1214 If YES, the default address selection policy is set as 1215 IPv6-preferred. 1216 1217 The default value of $ipv6_prefer is NO. 1218 1219 4. If your system need to receive Router Advertisement messages, 1220 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1221 scripts automatically invoke rtsol(8) when the interface becomes 1222 UP. The Router Advertisement messages are used for SLAAC 1223 (State-Less Address AutoConfiguration). 1224 122520090922: 1226 802.11s D3.03 support was committed. This is incompatible with the 1227 previous code, which was based on D3.0. 1228 122920090912: 1230 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1231 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1232 control whether accepting Router Advertisement messages or not. 1233 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1234 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1235 The ifconfig(8) utility now supports these flags. 1236 123720090910: 1238 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1239 mount(8) and -a option for df(1) to see them. 1240 124120090825: 1242 The old tunable hw.bus.devctl_disable has been superseded by 1243 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1244 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1245 is 1000. 1246 124720090813: 1248 Remove the option STOP_NMI. The default action is now to use NMI only 1249 for KDB via the newly introduced function stop_cpus_hard() and 1250 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1251 125220090803: 1253 The stable/8 branch created in subversion. This corresponds to the 1254 RELENG_8 branch in CVS. 1255 125620090719: 1257 Bump the shared library version numbers for all libraries that do not 1258 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1259 __FreeBSD_version to 800105. 1260 126120090714: 1262 Due to changes in the implementation of virtual network stack support, 1263 all network-related kernel modules must be recompiled. As this change 1264 breaks the ABI, bump __FreeBSD_version to 800104. 1265 126620090713: 1267 The TOE interface to the TCP syncache has been modified to remove 1268 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1269 The cxgb driver is the only TOE consumer affected by this change, and 1270 needs to be recompiled along with the kernel. As this change breaks 1271 the ABI, bump __FreeBSD_version to 800103. 1272 127320090712: 1274 Padding has been added to struct tcpcb, sackhint and tcpstat in 1275 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1276 maintaining the ABI. However, this change breaks the ABI, so bump 1277 __FreeBSD_version to 800102. User space tools that rely on the size of 1278 any of these structs (e.g. sockstat) need to be recompiled. 1279 128020090630: 1281 The NFS_LEGACYRPC option has been removed along with the old kernel 1282 RPC implementation that this option selected. Kernel configurations 1283 may need to be adjusted. 1284 128520090629: 1286 The network interface device nodes at /dev/net/<interface> have been 1287 removed. All ioctl operations can be performed the normal way using 1288 routing sockets. The kqueue functionality can generally be replaced 1289 with routing sockets. 1290 129120090628: 1292 The documentation from the FreeBSD Documentation Project (Handbook, 1293 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1294 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1295 129620090624: 1297 The ABI of various structures related to the SYSV IPC API have been 1298 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1299 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1300 800100. 1301 130220090622: 1303 Layout of struct vnet has changed as routing related variables were 1304 moved to their own Vimage module. Modules need to be recompiled. Bump 1305 __FreeBSD_version to 800099. 1306 130720090619: 1308 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1309 respectively. As long as no more than 16 groups per process are used, 1310 no changes should be visible. When more than 16 groups are used, old 1311 binaries may fail if they call getgroups() or getgrouplist() with 1312 statically sized storage. Recompiling will work around this, but 1313 applications should be modified to use dynamically allocated storage 1314 for group arrays as POSIX.1-2008 does not cap an implementation's 1315 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1316 1317 NFS and portalfs mounts may also be affected as the list of groups is 1318 truncated to 16. Users of NFS who use more than 16 groups, should 1319 take care that negative group permissions are not used on the exported 1320 file systems as they will not be reliable unless a GSSAPI based 1321 authentication method is used. 1322 132320090616: 1324 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1325 option compiles in the support for adaptive spinning for lockmgrs 1326 which want to enable it. The lockinit() function now accepts the flag 1327 LK_ADAPTIVE in order to make the lock object subject to adaptive 1328 spinning when both held in write and read mode. 1329 133020090613: 1331 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1332 changed. User applications that use this ioctl need to be rebuilt. 1333 133420090611: 1335 The layout of struct thread has changed. Kernel and modules need to 1336 be rebuilt. 1337 133820090608: 1339 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1340 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1341 134220090602: 1343 window(1) has been removed from the base system. It can now be 1344 installed from ports. The port is called misc/window. 1345 134620090601: 1347 The way we are storing and accessing `routing table' entries has 1348 changed. Programs reading the FIB, like netstat, need to be 1349 re-compiled. 1350 135120090601: 1352 A new netisr implementation has been added for FreeBSD 8. Network 1353 file system modules, such as igmp, ipdivert, and others, should be 1354 rebuilt. 1355 Bump __FreeBSD_version to 800096. 1356 135720090530: 1358 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1359 more valid. 1360 136120090530: 1362 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1363 Bump __FreeBSD_version to 800094. 1364 136520090529: 1366 Add mnt_xflag field to 'struct mount'. File system modules need to be 1367 rebuilt. 1368 Bump __FreeBSD_version to 800093. 1369 137020090528: 1371 The compiling option ADAPTIVE_SX has been retired while it has been 1372 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1373 The KPI for sx_init_flags() changes as accepting flags: 1374 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1375 been introduced in order to handle the reversed logic. 1376 Bump __FreeBSD_version to 800092. 1377 137820090527: 1379 Add support for hierarchical jails. Remove global securelevel. 1380 Bump __FreeBSD_version to 800091. 1381 138220090523: 1383 The layout of struct vnet_net has changed, therefore modules 1384 need to be rebuilt. 1385 Bump __FreeBSD_version to 800090. 1386 138720090523: 1388 The newly imported zic(8) produces a new format in the output. Please 1389 run tzsetup(8) to install the newly created data to /etc/localtime. 1390 139120090520: 1392 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1393 hw.usb.* and is now consistent again with previous releases. 1394 139520090520: 1396 802.11 monitor mode support was revised and driver api's were changed. 1397 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1398 of DLT_IEEE802_11. No user-visible data structures were changed but 1399 applications that use DLT_IEEE802_11 may require changes. 1400 Bump __FreeBSD_version to 800088. 1401 140220090430: 1403 The layout of the following structs has changed: sysctl_oid, 1404 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1405 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1406 panics may be experienced. World rebuild is required for 1407 correctly checking networking state from userland. 1408 Bump __FreeBSD_version to 800085. 1409 141020090429: 1411 MLDv2 and Source-Specific Multicast (SSM) have been merged 1412 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1413 The implementation of SSM within FreeBSD's IPv6 stack closely 1414 follows the IPv4 implementation. 1415 1416 For kernel developers: 1417 1418 * The most important changes are that the ip6_output() and 1419 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1420 and this lock has been downgraded to a non-recursive mutex. 1421 1422 * As with the changes to the IPv4 stack to support SSM, filtering 1423 of inbound multicast traffic must now be performed by transport 1424 protocols within the IPv6 stack. This does not apply to TCP and 1425 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1426 1427 * The KPIs used by IPv6 multicast are similar to those used by 1428 the IPv4 stack, with the following differences: 1429 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1430 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1431 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1432 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1433 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1434 for MLDv1 have an additional 'timer' argument which is used to 1435 jitter the initial membership report for the solicited-node 1436 multicast membership on-link. 1437 * This is not strictly needed for MLDv2, which already jitters 1438 its report transmissions. However, the 'timer' argument is 1439 preserved in case MLDv1 is active on the interface. 1440 1441 * The KAME linked-list based IPv6 membership implementation has 1442 been refactored to use a vector similar to that used by the IPv4 1443 stack. 1444 Code which maintains a list of its own multicast memberships 1445 internally, e.g. carp, has been updated to reflect the new 1446 semantics. 1447 1448 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1449 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1450 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1451 implementation constraint which needs to be addressed in HEAD. 1452 1453 For application developers: 1454 1455 * The changes are broadly similar to those made for the IPv4 1456 stack. 1457 1458 * The use of IPv4 and IPv6 multicast socket options on the same 1459 socket, using mapped addresses, HAS NOT been tested or supported. 1460 1461 * There are a number of issues with the implementation of various 1462 IPv6 multicast APIs which need to be resolved in the API surface 1463 before the implementation is fully compatible with KAME userland 1464 use, and these are mostly to do with interface index treatment. 1465 1466 * The literature available discusses the use of either the delta / ASM 1467 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1468 using setsourcefilter(3)/getsourcefilter(3). For more information 1469 please refer to RFC 3768, 'Socket Interface Extensions for 1470 Multicast Source Filters'. 1471 1472 * Applications which use the published RFC 3678 APIs should be fine. 1473 1474 For systems administrators: 1475 1476 * The mtest(8) utility has been refactored to support IPv6, in 1477 addition to IPv4. Interface addresses are no longer accepted 1478 as arguments, their names must be used instead. The utility 1479 will map the interface name to its first IPv4 address as 1480 returned by getifaddrs(3). 1481 1482 * The ifmcstat(8) utility has also been updated to print the MLDv2 1483 endpoint state and source filter lists via sysctl(3). 1484 1485 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1486 loopback of IPv6 multicast datagrams by default; it defaults to 1 1487 to preserve the existing behaviour. Disabling multicast loopback is 1488 recommended for optimal system performance. 1489 1490 * The IPv6 MROUTING code has been changed to examine this sysctl 1491 instead of attempting to perform a group lookup before looping 1492 back forwarded datagrams. 1493 1494 Bump __FreeBSD_version to 800084. 1495 149620090422: 1497 Implement low-level Bluetooth HCI API. 1498 Bump __FreeBSD_version to 800083. 1499 150020090419: 1501 The layout of struct malloc_type, used by modules to register new 1502 memory allocation types, has changed. Most modules will need to 1503 be rebuilt or panics may be experienced. 1504 Bump __FreeBSD_version to 800081. 1505 150620090415: 1507 Anticipate overflowing inp_flags - add inp_flags2. 1508 This changes most offsets in inpcb, so checking v4 connection 1509 state will require a world rebuild. 1510 Bump __FreeBSD_version to 800080. 1511 151220090415: 1513 Add an llentry to struct route and struct route_in6. Modules 1514 embedding a struct route will need to be recompiled. 1515 Bump __FreeBSD_version to 800079. 1516 151720090414: 1518 The size of rt_metrics_lite and by extension rtentry has changed. 1519 Networking administration apps will need to be recompiled. 1520 The route command now supports show as an alias for get, weighting 1521 of routes, sticky and nostick flags to alter the behavior of stateful 1522 load balancing. 1523 Bump __FreeBSD_version to 800078. 1524 152520090408: 1526 Do not use Giant for kbdmux(4) locking. This is wrong and 1527 apparently causing more problems than it solves. This will 1528 re-open the issue where interrupt handlers may race with 1529 kbdmux(4) in polling mode. Typical symptoms include (but 1530 not limited to) duplicated and/or missing characters when 1531 low level console functions (such as gets) are used while 1532 interrupts are enabled (for example geli password prompt, 1533 mountroot prompt etc.). Disabling kbdmux(4) may help. 1534 153520090407: 1536 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1537 kernel modules referencing any of the above need to be recompiled. 1538 Bump __FreeBSD_version to 800075. 1539 154020090320: 1541 GEOM_PART has become the default partition slicer for storage devices, 1542 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1543 introduces some changes: 1544 1545 MSDOS/EBR: the devices created from MSDOS extended partition entries 1546 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1547 to devices with offset-based names. fstabs may need to be modified. 1548 1549 BSD: the "geometry does not match label" warning is harmless in most 1550 cases but it points to problems in file system misalignment with 1551 disk geometry. The "c" partition is now implicit, covers the whole 1552 top-level drive and cannot be (mis)used by users. 1553 1554 General: Kernel dumps are now not allowed to be written to devices 1555 whose partition types indicate they are meant to be used for file 1556 systems (or, in case of MSDOS partitions, as something else than 1557 the "386BSD" type). 1558 1559 Most of these changes date approximately from 200812. 1560 156120090319: 1562 The uscanner(4) driver has been removed from the kernel. This follows 1563 Linux removing theirs in 2.6 and making libusb the default interface 1564 (supported by sane). 1565 156620090319: 1567 The multicast forwarding code has been cleaned up. netstat(1) 1568 only relies on KVM now for printing bandwidth upcall meters. 1569 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1570 ip6_mroute_mod respectively. The config(5) options for statically 1571 compiling this code remain the same, i.e. 'options MROUTING'. 1572 157320090315: 1574 Support for the IFF_NEEDSGIANT network interface flag has been 1575 removed, which means that non-MPSAFE network device drivers are no 1576 longer supported. In particular, if_ar, if_sr, and network device 1577 drivers from the old (legacy) USB stack can no longer be built or 1578 used. 1579 158020090313: 1581 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1582 a bunch of new language catalog files have also been added. 1583 This means that some common libc messages are now localized and 1584 they depend on the LC_MESSAGES environmental variable. 1585 158620090313: 1587 The k8temp(4) driver has been renamed to amdtemp(4) since 1588 support for Family 10 and Family 11 CPU families was added. 1589 159020090309: 1591 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1592 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1593 1594 For kernel developers, the most important changes are that the 1595 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1596 and this lock has been downgraded to a non-recursive mutex. 1597 1598 Transport protocols (UDP, Raw IP) are now responsible for filtering 1599 inbound multicast traffic according to group membership and source 1600 filters. The imo_multicast_filter() KPI exists for this purpose. 1601 Transports which do not use multicast (SCTP, TCP) already reject 1602 multicast by default. Forwarding and receive performance may improve 1603 as a mutex acquisition is no longer needed in the ip_input() 1604 low-level input path. in_addmulti() and in_delmulti() are shimmed 1605 to new KPIs which exist to support SSM in-kernel. 1606 1607 For application developers, it is recommended that loopback of 1608 multicast datagrams be disabled for best performance, as this 1609 will still cause the lock to be taken for each looped-back 1610 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1611 be tuned to 0 to disable loopback by default; it defaults to 1 1612 to preserve the existing behaviour. 1613 1614 For systems administrators, to obtain best performance with 1615 multicast reception and multiple groups, it is always recommended 1616 that a card with a suitably precise hash filter is used. Hash 1617 collisions will still result in the lock being taken within the 1618 transport protocol input path to check group membership. 1619 1620 If deploying FreeBSD in an environment with IGMP snooping switches, 1621 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1622 enabled; this forces 224.0.0.0/24 group membership to be announced 1623 via IGMP. 1624 1625 The size of 'struct igmpstat' has changed; netstat needs to be 1626 recompiled to reflect this. 1627 Bump __FreeBSD_version to 800070. 1628 162920090309: 1630 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1631 updated to use it. This requires a buildworld/installworld in order to 1632 update the library and dependencies (usbconfig, etc). Its advisable to 1633 rebuild all ports which uses libusb. More specific directions are given 1634 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1635 libusb are no longer required and can be removed. 1636 163720090302: 1638 A workaround is committed to allow the creation of System V shared 1639 memory segment of size > 2 GB on the 64-bit architectures. 1640 Due to a limitation of the existing ABI, the shm_segsz member 1641 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1642 wrong for large segments. Note that limits must be explicitly 1643 raised to allow such segments to be created. 1644 164520090301: 1646 The layout of struct ifnet has changed, requiring a rebuild of all 1647 network device driver modules. 1648 164920090227: 1650 The /dev handling for the new USB stack has changed, a 1651 buildworld/installworld is required for libusb20. 1652 165320090223: 1654 The new USB2 stack has now been permanently moved in and all kernel and 1655 module names reverted to their previous values (eg, usb, ehci, ohci, 1656 ums, ...). The old usb stack can be compiled in by prefixing the name 1657 with the letter 'o', the old usb modules have been removed. 1658 Updating entry 20090216 for xorg and 20090215 for libmap may still 1659 apply. 1660 166120090217: 1662 The rc.conf(5) option if_up_delay has been renamed to 1663 defaultroute_delay to better reflect its purpose. If you have 1664 customized this setting in /etc/rc.conf you need to update it to 1665 use the new name. 1666 166720090216: 1668 xorg 7.4 wants to configure its input devices via hald which does not 1669 yet work with USB2. If the keyboard/mouse does not work in xorg then 1670 add 1671 Option "AllowEmptyInput" "off" 1672 to your ServerLayout section. This will cause X to use the configured 1673 kbd and mouse sections from your xorg.conf. 1674 167520090215: 1676 The GENERIC kernels for all architectures now default to the new USB2 1677 stack. No kernel config options or code have been removed so if a 1678 problem arises please report it and optionally revert to the old USB 1679 stack. If you are loading USB kernel modules or have a custom kernel 1680 that includes GENERIC then ensure that usb names are also changed over, 1681 eg uftdi -> usb2_serial_ftdi. 1682 1683 Older programs linked against the ports libusb 0.1 need to be 1684 redirected to the new stack's libusb20. /etc/libmap.conf can 1685 be used for this: 1686 # Map old usb library to new one for usb2 stack 1687 libusb-0.1.so.8 libusb20.so.1 1688 168920090209: 1690 All USB ethernet devices now attach as interfaces under the name ueN 1691 (eg. ue0). This is to provide a predictable name as vendors often 1692 change usb chipsets in a product without notice. 1693 169420090203: 1695 The ichsmb(4) driver has been changed to require SMBus slave 1696 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1697 All of the other SMBus controller drivers require left-justified 1698 slave addresses, so this change makes all the drivers provide the 1699 same interface. 1700 170120090201: 1702 INET6 statistics (struct ip6stat) was updated. 1703 netstat(1) needs to be recompiled. 1704 170520090119: 1706 NTFS has been removed from GENERIC kernel on amd64 to match 1707 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1708 will load ntfs.ko module automatically when NTFS support is 1709 actually needed, unless ntfs.ko is not installed or security 1710 level prohibits loading kernel modules. If either is the case, 1711 "options NTFS" has to be added into kernel config. 1712 171320090115: 1714 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1715 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1716 800061. User space tools that rely on the size of struct tcpcb in 1717 tcp_var.h (e.g. sockstat) need to be recompiled. 1718 171920081225: 1720 ng_tty(4) module updated to match the new TTY subsystem. 1721 Due to API change, user-level applications must be updated. 1722 New API support added to mpd5 CVS and expected to be present 1723 in next mpd5.3 release. 1724 172520081219: 1726 With __FreeBSD_version 800060 the makefs tool is part of 1727 the base system (it was a port). 1728 172920081216: 1730 The afdata and ifnet locks have been changed from mutexes to 1731 rwlocks, network modules will need to be re-compiled. 1732 173320081214: 1734 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1735 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1736 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1737 architecture and 40 bytes on 64-bit architecture. The userland 1738 applications "arp" and "ndp" have been updated accordingly. 1739 The output from "netstat -r" shows only routing entries and 1740 none of the L2 information. 1741 174220081130: 1743 __FreeBSD_version 800057 marks the switchover from the 1744 binary ath hal to source code. Users must add the line: 1745 1746 options AH_SUPPORT_AR5416 1747 1748 to their kernel config files when specifying: 1749 1750 device ath_hal 1751 1752 The ath_hal module no longer exists; the code is now compiled 1753 together with the driver in the ath module. It is now 1754 possible to tailor chip support (i.e. reduce the set of chips 1755 and thereby the code size); consult ath_hal(4) for details. 1756 175720081121: 1758 __FreeBSD_version 800054 adds memory barriers to 1759 <machine/atomic.h>, new interfaces to ifnet to facilitate 1760 multiple hardware transmit queues for cards that support 1761 them, and a lock-less ring-buffer implementation to 1762 enable drivers to more efficiently manage queueing of 1763 packets. 1764 176520081117: 1766 A new version of ZFS (version 13) has been merged to -HEAD. 1767 This version has zpool attribute "listsnapshots" off by 1768 default, which means "zfs list" does not show snapshots, 1769 and is the same as Solaris behavior. 1770 177120081028: 1772 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1773 177420081009: 1775 The uhci, ohci, ehci and slhci USB Host controller drivers have 1776 been put into separate modules. If you load the usb module 1777 separately through loader.conf you will need to load the 1778 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1779 controller add the following to loader.conf: 1780 1781 uhci_load="YES" 1782 ehci_load="YES" 1783 178420081009: 1785 The ABI used by the PMC toolset has changed. Please keep 1786 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1787 sync. 1788 178920081009: 1790 atapci kernel module now includes only generic PCI ATA 1791 driver. AHCI driver moved to ataahci kernel module. 1792 All vendor-specific code moved into separate kernel modules: 1793 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1794 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1795 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1796 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1797 179820080820: 1799 The TTY subsystem of the kernel has been replaced by a new 1800 implementation, which provides better scalability and an 1801 improved driver model. Most common drivers have been migrated to 1802 the new TTY subsystem, while others have not. The following 1803 drivers have not yet been ported to the new TTY layer: 1804 1805 PCI/ISA: 1806 cy, digi, rc, rp, sio 1807 1808 USB: 1809 ubser, ucycom 1810 1811 Line disciplines: 1812 ng_h4, ng_tty, ppp, sl, snp 1813 1814 Adding these drivers to your kernel configuration file shall 1815 cause compilation to fail. 1816 181720080818: 1818 ntpd has been upgraded to 4.2.4p5. 1819 182020080801: 1821 OpenSSH has been upgraded to 5.1p1. 1822 1823 For many years, FreeBSD's version of OpenSSH preferred DSA 1824 over RSA for host and user authentication keys. With this 1825 upgrade, we've switched to the vendor's default of RSA over 1826 DSA. This may cause upgraded clients to warn about unknown 1827 host keys even for previously known hosts. Users should 1828 follow the usual procedure for verifying host keys before 1829 accepting the RSA key. 1830 1831 This can be circumvented by setting the "HostKeyAlgorithms" 1832 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1833 command line. 1834 1835 Please note that the sequence of keys offered for 1836 authentication has been changed as well. You may want to 1837 specify IdentityFile in a different order to revert this 1838 behavior. 1839 184020080713: 1841 The sio(4) driver has been removed from the i386 and amd64 1842 kernel configuration files. This means uart(4) is now the 1843 default serial port driver on those platforms as well. 1844 1845 To prevent collisions with the sio(4) driver, the uart(4) driver 1846 uses different names for its device nodes. This means the 1847 onboard serial port will now most likely be called "ttyu0" 1848 instead of "ttyd0". You may need to reconfigure applications to 1849 use the new device names. 1850 1851 When using the serial port as a boot console, be sure to update 1852 /boot/device.hints and /etc/ttys before booting the new kernel. 1853 If you forget to do so, you can still manually specify the hints 1854 at the loader prompt: 1855 1856 set hint.uart.0.at="isa" 1857 set hint.uart.0.port="0x3F8" 1858 set hint.uart.0.flags="0x10" 1859 set hint.uart.0.irq="4" 1860 boot -s 1861 186220080609: 1863 The gpt(8) utility has been removed. Use gpart(8) to partition 1864 disks instead. 1865 186620080603: 1867 The version that Linuxulator emulates was changed from 2.4.2 1868 to 2.6.16. If you experience any problems with Linux binaries 1869 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1870 if it fixes the problem contact emulation mailing list. 1871 187220080525: 1873 ISDN4BSD (I4B) was removed from the src tree. You may need to 1874 update a your kernel configuration and remove relevant entries. 1875 187620080509: 1877 I have checked in code to support multiple routing tables. 1878 See the man pages setfib(1) and setfib(2). 1879 This is a hopefully backwards compatible version, 1880 but to make use of it you need to compile your kernel 1881 with options ROUTETABLES=2 (or more up to 16). 1882 188320080420: 1884 The 802.11 wireless support was redone to enable multi-bss 1885 operation on devices that are capable. The underlying device 1886 is no longer used directly but instead wlanX devices are 1887 cloned with ifconfig. This requires changes to rc.conf files. 1888 For example, change: 1889 ifconfig_ath0="WPA DHCP" 1890 to 1891 wlans_ath0=wlan0 1892 ifconfig_wlan0="WPA DHCP" 1893 see rc.conf(5) for more details. In addition, mergemaster of 1894 /etc/rc.d is highly recommended. Simultaneous update of userland 1895 and kernel wouldn't hurt either. 1896 1897 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1898 modules were merged into the base wlan module. All references 1899 to these modules (e.g. in kernel config files) must be removed. 1900 190120080408: 1902 psm(4) has gained write(2) support in native operation level. 1903 Arbitrary commands can be written to /dev/psm%d and status can 1904 be read back from it. Therefore, an application is responsible 1905 for status validation and error recovery. It is a no-op in 1906 other operation levels. 1907 190820080312: 1909 Support for KSE threading has been removed from the kernel. To 1910 run legacy applications linked against KSE libmap.conf may 1911 be used. The following libmap.conf may be used to ensure 1912 compatibility with any prior release: 1913 1914 libpthread.so.1 libthr.so.1 1915 libpthread.so.2 libthr.so.2 1916 libkse.so.3 libthr.so.3 1917 191820080301: 1919 The layout of struct vmspace has changed. This affects libkvm 1920 and any executables that link against libkvm and use the 1921 kvm_getprocs() function. In particular, but not exclusively, 1922 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1923 The effects are minimal, but it's advisable to upgrade world 1924 nonetheless. 1925 192620080229: 1927 The latest em driver no longer has support in it for the 1928 82575 adapter, this is now moved to the igb driver. The 1929 split was done to make new features that are incompatible 1930 with older hardware easier to do. 1931 193220080220: 1933 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1934 likewise the kernel option is now GEOM_LINUX_LVM. 1935 193620080211: 1937 The default NFS mount mode has changed from UDP to TCP for 1938 increased reliability. If you rely on (insecurely) NFS 1939 mounting across a firewall you may need to update your 1940 firewall rules. 1941 194220080208: 1943 Belatedly note the addition of m_collapse for compacting 1944 mbuf chains. 1945 194620080126: 1947 The fts(3) structures have been changed to use adequate 1948 integer types for their members and so to be able to cope 1949 with huge file trees. The old fts(3) ABI is preserved 1950 through symbol versioning in libc, so third-party binaries 1951 using fts(3) should still work, although they will not take 1952 advantage of the extended types. At the same time, some 1953 third-party software might fail to build after this change 1954 due to unportable assumptions made in its source code about 1955 fts(3) structure members. Such software should be fixed 1956 by its vendor or, in the worst case, in the ports tree. 1957 FreeBSD_version 800015 marks this change for the unlikely 1958 case that a portable fix is impossible. 1959 196020080123: 1961 To upgrade to -current after this date, you must be running 1962 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1963 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1964 196520071128: 1966 The ADAPTIVE_GIANT kernel option has been retired because its 1967 functionality is the default now. 1968 196920071118: 1970 The AT keyboard emulation of sunkbd(4) has been turned on 1971 by default. In order to make the special symbols of the Sun 1972 keyboards driven by sunkbd(4) work under X these now have 1973 to be configured the same way as Sun USB keyboards driven 1974 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1975 1976 Option "XkbLayout" "us" 1977 Option "XkbRules" "xorg" 1978 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1979 198020071024: 1981 It has been decided that it is desirable to provide ABI 1982 backwards compatibility to the FreeBSD 4/5/6 versions of the 1983 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1984 broken with the introduction of PCI domain support (see the 1985 20070930 entry). Unfortunately, this required the ABI of 1986 PCIOCGETCONF to be broken again in order to be able to 1987 provide backwards compatibility to the old version of that 1988 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1989 again. As for prominent ports this affects neither pciutils 1990 nor xorg-server this time, the hal port needs to be rebuilt 1991 however. 1992 199320071020: 1994 The misnamed kthread_create() and friends have been renamed 1995 to kproc_create() etc. Many of the callers already 1996 used kproc_start().. 1997 I will return kthread_create() and friends in a while 1998 with implementations that actually create threads, not procs. 1999 Renaming corresponds with version 800002. 2000 200120071010: 2002 RELENG_7 branched. 2003 2004COMMON ITEMS: 2005 2006 General Notes 2007 ------------- 2008 Avoid using make -j when upgrading. While generally safe, there are 2009 sometimes problems using -j to upgrade. If your upgrade fails with 2010 -j, please try again without -j. From time to time in the past there 2011 have been problems using -j with buildworld and/or installworld. This 2012 is especially true when upgrading between "distant" versions (eg one 2013 that cross a major release boundary or several minor releases, or when 2014 several months have passed on the -current branch). 2015 2016 Sometimes, obscure build problems are the result of environment 2017 poisoning. This can happen because the make utility reads its 2018 environment when searching for values for global variables. To run 2019 your build attempts in an "environmental clean room", prefix all make 2020 commands with 'env -i '. See the env(1) manual page for more details. 2021 2022 When upgrading from one major version to another it is generally best 2023 to upgrade to the latest code in the currently installed branch first, 2024 then do an upgrade to the new branch. This is the best-tested upgrade 2025 path, and has the highest probability of being successful. Please try 2026 this approach before reporting problems with a major version upgrade. 2027 2028 When upgrading a live system, having a root shell around before 2029 installing anything can help undo problems. Not having a root shell 2030 around can lead to problems if pam has changed too much from your 2031 starting point to allow continued authentication after the upgrade. 2032 2033 ZFS notes 2034 --------- 2035 When upgrading the boot ZFS pool to a new version, always follow 2036 these two steps: 2037 2038 1.) recompile and reinstall the ZFS boot loader and boot block 2039 (this is part of "make buildworld" and "make installworld") 2040 2041 2.) update the ZFS boot block on your boot drive 2042 2043 The following example updates the ZFS boot block on the first 2044 partition (freebsd-boot) of a GPT partitioned drive ad0: 2045 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2046 2047 Non-boot pools do not need these updates. 2048 2049 To build a kernel 2050 ----------------- 2051 If you are updating from a prior version of FreeBSD (even one just 2052 a few days old), you should follow this procedure. It is the most 2053 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2054 2055 make kernel-toolchain 2056 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2057 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2058 2059 To test a kernel once 2060 --------------------- 2061 If you just want to boot a kernel once (because you are not sure 2062 if it works, or if you want to boot a known bad kernel to provide 2063 debugging information) run 2064 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2065 nextboot -k testkernel 2066 2067 To just build a kernel when you know that it won't mess you up 2068 -------------------------------------------------------------- 2069 This assumes you are already running a CURRENT system. Replace 2070 ${arch} with the architecture of your machine (e.g. "i386", 2071 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2072 2073 cd src/sys/${arch}/conf 2074 config KERNEL_NAME_HERE 2075 cd ../compile/KERNEL_NAME_HERE 2076 make depend 2077 make 2078 make install 2079 2080 If this fails, go to the "To build a kernel" section. 2081 2082 To rebuild everything and install it on the current system. 2083 ----------------------------------------------------------- 2084 # Note: sometimes if you are running current you gotta do more than 2085 # is listed here if you are upgrading from a really old current. 2086 2087 <make sure you have good level 0 dumps> 2088 make buildworld 2089 make kernel KERNCONF=YOUR_KERNEL_HERE 2090 [1] 2091 <reboot in single user> [3] 2092 mergemaster -p [5] 2093 make installworld 2094 mergemaster -i [4] 2095 make delete-old [6] 2096 <reboot> 2097 2098 To cross-install current onto a separate partition 2099 -------------------------------------------------- 2100 # In this approach we use a separate partition to hold 2101 # current's root, 'usr', and 'var' directories. A partition 2102 # holding "/", "/usr" and "/var" should be about 2GB in 2103 # size. 2104 2105 <make sure you have good level 0 dumps> 2106 <boot into -stable> 2107 make buildworld 2108 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2109 <maybe newfs current's root partition> 2110 <mount current's root partition on directory ${CURRENT_ROOT}> 2111 make installworld DESTDIR=${CURRENT_ROOT} 2112 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2113 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2114 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2115 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2116 <reboot into current> 2117 <do a "native" rebuild/install as described in the previous section> 2118 <maybe install compatibility libraries from ports/misc/compat*> 2119 <reboot> 2120 2121 2122 To upgrade in-place from stable to current 2123 ---------------------------------------------- 2124 <make sure you have good level 0 dumps> 2125 make buildworld [9] 2126 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2127 [1] 2128 <reboot in single user> [3] 2129 mergemaster -p [5] 2130 make installworld 2131 mergemaster -i [4] 2132 make delete-old [6] 2133 <reboot> 2134 2135 Make sure that you've read the UPDATING file to understand the 2136 tweaks to various things you need. At this point in the life 2137 cycle of current, things change often and you are on your own 2138 to cope. The defaults can also change, so please read ALL of 2139 the UPDATING entries. 2140 2141 Also, if you are tracking -current, you must be subscribed to 2142 freebsd-current@freebsd.org. Make sure that before you update 2143 your sources that you have read and understood all the recent 2144 messages there. If in doubt, please track -stable which has 2145 much fewer pitfalls. 2146 2147 [1] If you have third party modules, such as vmware, you 2148 should disable them at this point so they don't crash your 2149 system on reboot. 2150 2151 [3] From the bootblocks, boot -s, and then do 2152 fsck -p 2153 mount -u / 2154 mount -a 2155 cd src 2156 adjkerntz -i # if CMOS is wall time 2157 Also, when doing a major release upgrade, it is required that 2158 you boot into single user mode to do the installworld. 2159 2160 [4] Note: This step is non-optional. Failure to do this step 2161 can result in a significant reduction in the functionality of the 2162 system. Attempting to do it by hand is not recommended and those 2163 that pursue this avenue should read this file carefully, as well 2164 as the archives of freebsd-current and freebsd-hackers mailing lists 2165 for potential gotchas. The -U option is also useful to consider. 2166 See mergemaster(8) for more information. 2167 2168 [5] Usually this step is a noop. However, from time to time 2169 you may need to do this if you get unknown user in the following 2170 step. It never hurts to do it all the time. You may need to 2171 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2172 install) after the buildworld before this step if you last updated 2173 from current before 20130425 or from -stable before 20130430. 2174 2175 [6] This only deletes old files and directories. Old libraries 2176 can be deleted by "make delete-old-libs", but you have to make 2177 sure that no program is using those libraries anymore. 2178 2179 [8] In order to have a kernel that can run the 4.x binaries needed to 2180 do an installworld, you must include the COMPAT_FREEBSD4 option in 2181 your kernel. Failure to do so may leave you with a system that is 2182 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2183 required to run the 5.x binaries on more recent kernels. And so on 2184 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2185 2186 Make sure that you merge any new devices from GENERIC since the 2187 last time you updated your kernel config file. 2188 2189 [9] When checking out sources, you must include the -P flag to have 2190 cvs prune empty directories. 2191 2192 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2193 "?=" instead of the "=" assignment operator, so that buildworld can 2194 override the CPUTYPE if it needs to. 2195 2196 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2197 not on the command line, or in /etc/make.conf. buildworld will 2198 warn if it is improperly defined. 2199FORMAT: 2200 2201This file contains a list, in reverse chronological order, of major 2202breakages in tracking -current. It is not guaranteed to be a complete 2203list of such breakages, and only contains entries since October 10, 2007. 2204If you need to see UPDATING entries from before that date, you will need 2205to fetch an UPDATING file from an older FreeBSD release. 2206 2207Copyright information: 2208 2209Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2210 2211Redistribution, publication, translation and use, with or without 2212modification, in full or in part, in any form or format of this 2213document are permitted without further permission from the author. 2214 2215THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2216IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2217WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2218DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2219INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2220(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2221SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2222HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2223STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2224IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2225POSSIBILITY OF SUCH DAMAGE. 2226 2227Contact Warner Losh if you have any questions about your use of 2228this document. 2229 2230$FreeBSD: releng/10.1/UPDATING 284230 2015-06-10 17:27:48Z delphij $ 2231