UPDATING revision 287873
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 1920150916: p20 FreeBSD-EN-15:18.pkg 20 21 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 22 2320150825: p19 FreeBSD-SA-15:21.amd64 24 FreeBSD-SA-15:22.openssh 25 FreeBSD-EN-15:14.ixgbe 26 FreeBSD-EN-15:15.pkg 27 28 Fix local privilege escalation in IRET handler. [SA-15:21] 29 30 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 31 32 Disabled ixgbe(4) flow-director support. [EN-15:14] 33 34 Fix insufficient check of unsupported pkg(7) signature methods. 35 [EN-15:15] 36 3720150818: p18 FreeBSD-SA-15:20.expat 38 39 Fix multiple integer overflows in expat (libbsdxml) XML parser. 40 [SA-15:20] 41 4220150805: p17 FreeBSD-SA-15:18.bsdpatch 43 FreeBSD-SA-15:19.routed 44 45 Fix patch(1) shell injection vulnerability via ed(1). 46 [SA-15:18] 47 48 Fix routed remote denial of service vulnerability. [SA-15:19] 49 5020150728: p16 FreeBSD-SA-15:14.bsdpatch 51 FreeBSD-SA-15:15.tcp 52 FreeBSD-SA-15:16.openssh 53 54 Fix patch(1) shell injection vulnerability. [SA-15:14] 55 56 Fix resource exhaustion in TCP reassembly. [SA-15:15] 57 58 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 59 6020150721: p15 FreeBSD-SA-15:13.tcp 61 62 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 63 [SA-15:13] 64 6520150630: p14 FreeBSD-EN-15:08.sendmail [revised] 66 FreeBSD-EN-15:09.xlocale 67 FreeBSD-EN-15:10.iconv 68 69 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 70 71 Fix inconsistency between locale and rune locale states. 72 [EN-15:09] 73 74 Improved iconv(3) UTF-7 support. [EN-15:10] 75 7620150618: p13 FreeBSD-EN-15:08.sendmail 77 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 78 7920150612: p12 FreeBSD-SA-15:10.openssl 80 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 81 8220150609: p11 FreeBSD-EN-15:06.file 83 FreeBSD-EN-15:07.zfs 84 85 Updated base system file(1) to 5.22 to address multiple denial 86 of service issues. [EN-15:06] 87 88 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 89 [EN-15:07] 90 9120150513: p10 FreeBSD-EN-15:04.freebsd-update 92 FreeBSD-EN-15:05.ufs 93 94 Fix bug with freebsd-update(8) that does not ensure the previous 95 upgrade was completed. [EN-15:04] 96 97 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 98 9920150407: p9 FreeBSD-SA-15:04.igmp [revised] 100 FreeBSD-SA-15:07.ntp 101 FreeBSD-SA-15:08.bsdinstall 102 FreeBSD-SA-15:09.ipv6 103 104 Improved patch for SA-15:04.igmp. 105 106 Fix multiple vulnerabilities of ntp. [SA-15:07] 107 108 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 109 110 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 111 11220150320: p8 113 Fix patch for SA-15:06.openssl. 114 11520150319: p7 FreeBSD-SA-15:06.openssl 116 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 117 11820150225: p6 FreeBSD-SA-15:04.igmp 119 FreeBSD-EN-15:01.vt 120 FreeBSD-EN-15:02.openssl 121 FreeBSD-EN-15:03.freebsd-update 122 123 Fix integer overflow in IGMP protocol. [SA-15:04] 124 125 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 126 127 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 128 129 Fix freebsd-update libraries update ordering issue. [EN-15:03] 130 13120150127: p5 FreeBSD-SA-15:02.kmem 132 FreeBSD-SA-15:03.sctp 133 134 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 135 vulnerability. [SA-15:02] 136 137 Fix SCTP stream reset vulnerability. [SA-15:03] 138 13920150114: p4 FreeBSD-SA-15:01.openssl 140 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 141 14220141223: p3 FreeBSD-SA-14:31.ntp 143 FreeBSD-EN-14:13.freebsd-update 144 145 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 146 Fix directory deletion issue in freebsd-update. [EN-14:13] 147 14820141217: p2 FreeBSD-SA-14:30.unbound 149 Fix unbound remote denial of service vulnerability. 150 15120141210: p1 FreeBSD-SA-14:27.stdio 152 FreeBSD-SA-14:28.file 153 154 Fix buffer overflow in stdio. [SA-14:27] 155 156 Fix multiple vulnerabilities in file(1) and libmagic(3). 157 [SA-14:28] 158 15920140904: 160 The ofwfb driver, used to provide a graphics console on PowerPC when 161 using vt(4), no longer allows mmap() of all of physical memory. This 162 will prevent Xorg on PowerPC with some ATI graphics cards from 163 initializing properly unless x11-servers/xorg-server is updated to 164 1.12.4_8 or newer. 165 16620140831: 167 The libatf-c and libatf-c++ major versions were downgraded to 0 and 168 1 respectively to match the upstream numbers. They were out of 169 sync because, when they were originally added to FreeBSD, the 170 upstream versions were not respected. These libraries are private 171 and not yet built by default, so renumbering them should be a 172 non-issue. However, unclean source trees will yield broken test 173 programs once the operator executes "make delete-old-libs" after a 174 "make installworld". 175 176 Additionally, the atf-sh binary was made private by moving it into 177 /usr/libexec/. Already-built shell test programs will keep the 178 path to the old binary so they will break after "make delete-old" 179 is run. 180 181 If you are using WITH_TESTS=yes (not the default), wipe the object 182 tree and rebuild from scratch to prevent spurious test failures. 183 This is only needed once: the misnumbered libraries and misplaced 184 binaries have been added to OptionalObsoleteFiles.inc so they will 185 be removed during a clean upgrade. 186 18720140814: 188 The ixgbe tunables now match their sysctl counterparts, for example: 189 hw.ixgbe.enable_aim => hw.ix.enable_aim 190 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 191 19220140801: 193 The NFSv4.1 server committed by r269398 changes the internal 194 function call interfaces used between the NFS and krpc modules. 195 As such, __FreeBSD_version was bumped. 196 19720140729: 198 The default unbound configuration has been modified to address 199 issues with reverse lookups on networks that use private 200 address ranges. If you use the local_unbound service, run 201 "service local_unbound setup" as root to regenerate your 202 configuration, then "service local_unbound reload" to load the 203 new configuration. 204 20520140717: 206 It is no longer necessary to include the dwarf version in your DEBUG 207 options in your kernel config file. The bug that required it to be 208 placed in the config file has bene fixed. DEBUG should now just 209 contain -g. The build system will automatically update things 210 to do the right thing. 211 21220140715: 213 Several ABI breaking changes were merged to CTL and new iSCSI code. 214 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 215 iscsictl need to be rebuilt to work with a new kernel. 216 21720140708: 218 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 219 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 220 which differs from the behaviour controlled by this knob.) 221 22220140608: 223 On i386 and amd64 systems, the onifconsole flag is now set by default 224 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 225 as a login TTY if it is set in the bootloader as an active kernel 226 console. No changes in behavior should result otherwise. To revert to 227 the previous behavior, set ttyu0 to "off" in /etc/ttys. 228 22920140512: 230 Clang and llvm have been upgraded to 3.4.1 release. 231 23220140321: 233 Clang and llvm have been upgraded to 3.4 release. 234 23520140306: 236 If a Makefile in a tests/ directory was auto-generating a Kyuafile 237 instead of providing an explicit one, this would prevent such 238 Makefile from providing its own Kyuafile in the future during 239 NO_CLEAN builds. This has been fixed in the Makefiles but manual 240 intervention is needed to clean an objdir if you use NO_CLEAN: 241 # find /usr/obj -name Kyuafile | xargs rm -f 242 24320140303: 244 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 245 capability mode support. Please note that enabling the feature in 246 kernel is still highly recommended. 247 24820140227: 249 OpenSSH is now built with sandbox support, and will use sandbox as 250 the default privilege separation method. This requires Capsicum 251 capability mode support in kernel. 252 25320140216: 254 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 255 been deprecated and will not be part of FreeBSD 11.0 and later 256 releases. If you use this driver, please consider switching to 257 the nfe(4) driver instead. 258 25920140120: 260 10.0-RELEASE. 261 26220131216: 263 The behavior of gss_pseudo_random() for the krb5 mechanism 264 has changed, for applications requesting a longer random string 265 than produced by the underlying enctype's pseudo-random() function. 266 In particular, the random string produced from a session key of 267 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 268 be different at the 17th octet and later, after this change. 269 The counter used in the PRF+ construction is now encoded as a 270 big-endian integer in accordance with RFC 4402. 271 __FreeBSD_version is bumped to 1000701. 272 27320131108: 274 The WITHOUT_ATF build knob has been removed and its functionality 275 has been subsumed into the more generic WITHOUT_TESTS. If you were 276 using the former to disable the build of the ATF libraries, you 277 should change your settings to use the latter. 278 27920131031: 280 The default version of mtree is nmtree which is obtained from 281 NetBSD. The output is generally the same, but may vary 282 slightly. If you found you need identical output adding 283 "-F freebsd9" to the command line should do the trick. For the 284 time being, the old mtree is available as fmtree. 285 28620131014: 287 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 288 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 289 1.1.4_8 and verify bsdyml not linked in, before running "make 290 delete-old-libs": 291 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 292 or 293 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 294 29520131010: 296 The rc.d/jail script has been updated to support jail(8) 297 configuration file. The "jail_<jname>_*" rc.conf(5) variables 298 for per-jail configuration are automatically converted to 299 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 300 This is transparently backward compatible. See below about some 301 incompatibilities and rc.conf(5) manual page for more details. 302 303 These variables are now deprecated in favor of jail(8) configuration 304 file. One can use "rc.d/jail config <jname>" command to generate 305 a jail(8) configuration file in /var/run/jail.<jname>.conf without 306 running the jail(8) utility. The default pathname of the 307 configuration file is /etc/jail.conf and can be specified by 308 using $jail_conf or $jail_<jname>_conf variables. 309 310 Please note that jail_devfs_ruleset accepts an integer at 311 this moment. Please consider to rewrite the ruleset name 312 with an integer. 313 31420130930: 315 BIND has been removed from the base system. If all you need 316 is a local resolver, simply enable and start the local_unbound 317 service instead. Otherwise, several versions of BIND are 318 available in the ports tree. The dns/bind99 port is one example. 319 320 With this change, nslookup(1) and dig(1) are no longer in the base 321 system. Users should instead use host(1) and drill(1) which are 322 in the base system. Alternatively, nslookup and dig can 323 be obtained by installing the dns/bind-tools port. 324 32520130916: 326 With the addition of unbound(8), a new unbound user is now 327 required during installworld. "mergemaster -p" can be used to 328 add the user prior to installworld, as documented in the handbook. 329 33020130911: 331 OpenSSH is now built with DNSSEC support, and will by default 332 silently trust signed SSHFP records. This can be controlled with 333 the VerifyHostKeyDNS client configuration setting. DNSSEC support 334 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 335 33620130906: 337 The GNU Compiler Collection and C++ standard library (libstdc++) 338 are no longer built by default on platforms where clang is the system 339 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 340 options in src.conf. 341 34220130905: 343 The PROCDESC kernel option is now part of the GENERIC kernel 344 configuration and is required for the rwhod(8) to work. 345 If you are using custom kernel configuration, you should include 346 'options PROCDESC'. 347 34820130905: 349 The API and ABI related to the Capsicum framework was modified 350 in backward incompatible way. The userland libraries and programs 351 have to be recompiled to work with the new kernel. This includes the 352 following libraries and programs, but the whole buildworld is 353 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 354 kdump, procstat, rwho, rwhod, uniq. 355 35620130903: 357 AES-NI intrinsic support has been added to gcc. The AES-NI module 358 has been updated to use this support. A new gcc is required to build 359 the aesni module on both i386 and amd64. 360 36120130821: 362 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 363 Thus "device padlock_rng" and "device rdrand_rng" should be 364 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 365 36620130813: 367 WITH_ICONV has been split into two feature sets. WITH_ICONV now 368 enables just the iconv* functionality and is now on by default. 369 WITH_LIBICONV_COMPAT enables the libiconv api and link time 370 compatability. Set WITHOUT_ICONV to build the old way. 371 If you have been using WITH_ICONV before, you will very likely 372 need to turn on WITH_LIBICONV_COMPAT. 373 37420130806: 375 INVARIANTS option now enables DEBUG for code with OpenSolaris and 376 Illumos origin, including ZFS. If you have INVARIANTS in your 377 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 378 explicitly. 379 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 380 locks if WITNESS option was set. Because that generated a lot of 381 witness(9) reports and all of them were believed to be false 382 positives, this is no longer done. New option OPENSOLARIS_WITNESS 383 can be used to achieve the previous behavior. 384 38520130806: 386 Timer values in IPv6 data structures now use time_uptime instead 387 of time_second. Although this is not a user-visible functional 388 change, userland utilities which directly use them---ndp(8), 389 rtadvd(8), and rtsold(8) in the base system---need to be updated 390 to r253970 or later. 391 39220130802: 393 find -delete can now delete the pathnames given as arguments, 394 instead of only files found below them or if the pathname did 395 not contain any slashes. Formerly, the following error message 396 would result: 397 398 find: -delete: <path>: relative path potentially not safe 399 400 Deleting the pathnames given as arguments can be prevented 401 without error messages using -mindepth 1 or by changing 402 directory and passing "." as argument to find. This works in the 403 old as well as the new version of find. 404 40520130726: 406 Behavior of devfs rules path matching has been changed. 407 Pattern is now always matched against fully qualified devfs 408 path and slash characters must be explicitly matched by 409 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 410 subdirectories must be reviewed. 411 41220130716: 413 The default ARM ABI has changed to the ARM EABI. The old ABI is 414 incompatible with the ARM EABI and all programs and modules will 415 need to be rebuilt to work with a new kernel. 416 417 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 418 419 NOTE: Support for the old ABI will be removed in the future and 420 users are advised to upgrade. 421 42220130709: 423 pkg_install has been disconnected from the build if you really need it 424 you should add WITH_PKGTOOLS in your src.conf(5). 425 42620130709: 427 Most of network statistics structures were changed to be able 428 keep 64-bits counters. Thus all tools, that work with networking 429 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 430 43120130629: 432 Fix targets that run multiple make's to use && rather than ; 433 so that subsequent steps depend on success of previous. 434 435 NOTE: if building 'universe' with -j* on stable/8 or stable/9 436 it would be better to start the build using bmake, to avoid 437 overloading the machine. 438 43920130618: 440 Fix a bug that allowed a tracing process (e.g. gdb) to write 441 to a memory-mapped file in the traced process's address space 442 even if neither the traced process nor the tracing process had 443 write access to that file. 444 44520130615: 446 CVS has been removed from the base system. An exact copy 447 of the code is available from the devel/cvs port. 448 44920130613: 450 Some people report the following error after the switch to bmake: 451 452 make: illegal option -- J 453 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 454 ... 455 *** [buildworld] Error code 2 456 457 this likely due to an old instance of make in 458 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 459 which src/Makefile will use that blindly, if it exists, so if 460 you see the above error: 461 462 rm -rf `make -V MAKEPATH` 463 464 should resolve it. 465 46620130516: 467 Use bmake by default. 468 Whereas before one could choose to build with bmake via 469 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 470 make. The goal is to remove these knobs for 10-RELEASE. 471 472 It is worth noting that bmake (like gmake) treats the command 473 line as the unit of failure, rather than statements within the 474 command line. Thus '(cd some/where && dosomething)' is safer 475 than 'cd some/where; dosomething'. The '()' allows consistent 476 behavior in parallel build. 477 47820130429: 479 Fix a bug that allows NFS clients to issue READDIR on files. 480 48120130426: 482 The WITHOUT_IDEA option has been removed because 483 the IDEA patent expired. 484 48520130426: 486 The sysctl which controls TRIM support under ZFS has been renamed 487 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 488 enabled by default. 489 49020130425: 491 The mergemaster command now uses the default MAKEOBJDIRPREFIX 492 rather than creating it's own in the temporary directory in 493 order allow access to bootstrapped versions of tools such as 494 install and mtree. When upgrading from version of FreeBSD where 495 the install command does not support -l, you will need to 496 install a new mergemaster command if mergemaster -p is required. 497 This can be accomplished with the command (cd src/usr.sbin/mergemaster 498 && make install). 499 50020130404: 501 Legacy ATA stack, disabled and replaced by new CAM-based one since 502 FreeBSD 9.0, completely removed from the sources. Kernel modules 503 atadisk and atapi*, user-level tools atacontrol and burncd are 504 removed. Kernel option `options ATA_CAM` is now permanently enabled 505 and removed. 506 50720130319: 508 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 509 and socketpair(2). Software, in particular Kerberos, may 510 automatically detect and use these during building. The resulting 511 binaries will not work on older kernels. 512 51320130308: 514 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 515 information, see the respective 20130304 entry). 516 51720130304: 518 Recent commits to callout(9) changed the size of struct callout, 519 so the KBI is probably heavily disturbed. Also, some functions 520 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 521 by macros. Every kernel module using it won't load, so rebuild 522 is requested. 523 524 The ctl device has been re-enabled in GENERIC for i386 and amd64, 525 but does not initialize by default (because of the new CTL_DISABLE 526 option) to save memory. To re-enable it, remove the CTL_DISABLE 527 option from the kernel config file or set kern.cam.ctl.disable=0 528 in /boot/loader.conf. 529 53020130301: 531 The ctl device has been disabled in GENERIC for i386 and amd64. 532 This was done due to the extra memory being allocated at system 533 initialisation time by the ctl driver which was only used if 534 a CAM target device was created. This makes a FreeBSD system 535 unusable on 128MB or less of RAM. 536 53720130208: 538 A new compression method (lz4) has been merged to -HEAD. Please 539 refer to zpool-features(7) for more information. 540 541 Please refer to the "ZFS notes" section of this file for information 542 on upgrading boot ZFS pools. 543 54420130129: 545 A BSD-licensed patch(1) variant has been added and is installed 546 as bsdpatch, being the GNU version the default patch. 547 To inverse the logic and use the BSD-licensed one as default, 548 while having the GNU version installed as gnupatch, rebuild 549 and install world with the WITH_BSD_PATCH knob set. 550 55120130121: 552 Due to the use of the new -l option to install(1) during build 553 and install, you must take care not to directly set the INSTALL 554 make variable in your /etc/make.conf, /etc/src.conf, or on the 555 command line. If you wish to use the -C flag for all installs 556 you may be able to add INSTALL+=-C to /etc/make.conf or 557 /etc/src.conf. 558 55920130118: 560 The install(1) option -M has changed meaning and now takes an 561 argument that is a file or path to append logs to. In the 562 unlikely event that -M was the last option on the command line 563 and the command line contained at least two files and a target 564 directory the first file will have logs appended to it. The -M 565 option served little practical purpose in the last decade so its 566 use is expected to be extremely rare. 567 56820121223: 569 After switching to Clang as the default compiler some users of ZFS 570 on i386 systems started to experience stack overflow kernel panics. 571 Please consider using 'options KSTACK_PAGES=4' in such configurations. 572 57320121222: 574 GEOM_LABEL now mangles label names read from file system metadata. 575 Mangling affect labels containing spaces, non-printable characters, 576 '%' or '"'. Device names in /etc/fstab and other places may need to 577 be updated. 578 57920121217: 580 By default, only the 10 most recent kernel dumps will be saved. To 581 restore the previous behaviour (no limit on the number of kernel dumps 582 stored in the dump directory) add the following line to /etc/rc.conf: 583 584 savecore_flags="" 585 58620121201: 587 With the addition of auditdistd(8), a new auditdistd user is now 588 required during installworld. "mergemaster -p" can be used to 589 add the user prior to installworld, as documented in the handbook. 590 59120121117: 592 The sin6_scope_id member variable in struct sockaddr_in6 is now 593 filled by the kernel before passing the structure to the userland via 594 sysctl or routing socket. This means the KAME-specific embedded scope 595 id in sin6_addr.s6_addr[2] is always cleared in userland application. 596 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 597 __FreeBSD_version is bumped to 1000025. 598 59920121105: 600 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 601 This means that the world and kernel will be compiled with clang 602 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 603 and /usr/bin/cpp. To disable this behavior and revert to building 604 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 605 of current may need to bootstrap WITHOUT_CLANG first if the clang 606 build fails (its compatibility window doesn't extend to the 9 stable 607 branch point). 608 60920121102: 610 The IPFIREWALL_FORWARD kernel option has been removed. Its 611 functionality now turned on by default. 612 61320121023: 614 The ZERO_COPY_SOCKET kernel option has been removed and 615 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 616 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 617 mechanism which is not safe and may result in kernel crashes. 618 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 619 driver supports disposeable external page sized mbuf storage. 620 Proper replacements for both zero-copy mechanisms are under 621 consideration and will eventually lead to complete removal 622 of the two kernel options. 623 62420121023: 625 The IPv4 network stack has been converted to network byte 626 order. The following modules need to be recompiled together 627 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 628 pf(4), ipfw(4), ng_ipfw(4), stf(4). 629 63020121022: 631 Support for non-MPSAFE filesystems was removed from VFS. The 632 VFS_VERSION was bumped, all filesystem modules shall be 633 recompiled. 634 63520121018: 636 All the non-MPSAFE filesystems have been disconnected from 637 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 638 portalfs, smbfs, xfs. 639 64020121016: 641 The interface cloning API and ABI has changed. The following 642 modules need to be recompiled together with kernel: 643 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 644 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 645 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 646 64720121015: 648 The sdhci driver was split in two parts: sdhci (generic SD Host 649 Controller logic) and sdhci_pci (actual hardware driver). 650 No kernel config modifications are required, but if you 651 load sdhc as a module you must switch to sdhci_pci instead. 652 65320121014: 654 Import the FUSE kernel and userland support into base system. 655 65620121013: 657 The GNU sort(1) program has been removed since the BSD-licensed 658 sort(1) has been the default for quite some time and no serious 659 problems have been reported. The corresponding WITH_GNU_SORT 660 knob has also gone. 661 66220121006: 663 The pfil(9) API/ABI for AF_INET family has been changed. Packet 664 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 665 with new kernel. 666 66720121001: 668 The net80211(4) ABI has been changed to allow for improved driver 669 PS-POLL and power-save support. All wireless drivers need to be 670 recompiled to work with the new kernel. 671 67220120913: 673 The random(4) support for the VIA hardware random number 674 generator (`PADLOCK') is no longer enabled unconditionally. 675 Add the padlock_rng device in the custom kernel config if 676 needed. The GENERIC kernels on i386 and amd64 do include the 677 device, so the change only affects the custom kernel 678 configurations. 679 68020120908: 681 The pf(4) packet filter ABI has been changed. pfctl(8) and 682 snmp_pf module need to be recompiled to work with new kernel. 683 68420120828: 685 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 686 to -HEAD. Pools that have empty_bpobj in active state can not be 687 imported read-write with ZFS implementations that do not support 688 this feature. For more information read the zpool-features(5) 689 manual page. 690 69120120727: 692 The sparc64 ZFS loader has been changed to no longer try to auto- 693 detect ZFS providers based on diskN aliases but now requires these 694 to be explicitly listed in the OFW boot-device environment variable. 695 69620120712: 697 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 698 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 699 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 700 70120120712: 702 The following sysctls and tunables have been renamed for consistency 703 with other variables: 704 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 705 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 706 70720120628: 708 The sort utility has been replaced with BSD sort. For now, GNU sort 709 is also available as "gnusort" or the default can be set back to 710 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 711 installed as "bsdsort". 712 71320120611: 714 A new version of ZFS (pool version 5000) has been merged to -HEAD. 715 Starting with this version the old system of ZFS pool versioning 716 is superseded by "feature flags". This concept enables forward 717 compatibility against certain future changes in functionality of ZFS 718 pools. The first read-only compatible "feature flag" for ZFS pools 719 is named "com.delphix:async_destroy". For more information 720 read the new zpool-features(5) manual page. 721 Please refer to the "ZFS notes" section of this file for information 722 on upgrading boot ZFS pools. 723 72420120417: 725 The malloc(3) implementation embedded in libc now uses sources imported 726 as contrib/jemalloc. The most disruptive API change is to 727 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 728 delete it prior to installworld, and optionally re-create it using the 729 new format after rebooting. See malloc.conf(5) for details 730 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 731 NAMESPACE section). 732 73320120328: 734 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 735 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 736 now spelled mips. This is to aid compatibility with third-party 737 software that expects this naming scheme in uname(3). Little-endian 738 settings are unchanged. If you are updating a big-endian mips64 machine 739 from before this change, you may need to set MACHINE_ARCH=mips64 in 740 your environment before the new build system will recognize your machine. 741 74220120306: 743 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 744 platforms. 745 74620120229: 747 Now unix domain sockets behave "as expected" on nullfs(5). Previously 748 nullfs(5) did not pass through all behaviours to the underlying layer, 749 as a result if we bound to a socket on the lower layer we could connect 750 only to the lower path; if we bound to the upper layer we could connect 751 only to the upper path. The new behavior is one can connect to both the 752 lower and the upper paths regardless what layer path one binds to. 753 75420120211: 755 The getifaddrs upgrade path broken with 20111215 has been restored. 756 If you have upgraded in between 20111215 and 20120209 you need to 757 recompile libc again with your kernel. You still need to recompile 758 world to be able to configure CARP but this restriction already 759 comes from 20111215. 760 76120120114: 762 The set_rcvar() function has been removed from /etc/rc.subr. All 763 base and ports rc.d scripts have been updated, so if you have a 764 port installed with a script in /usr/local/etc/rc.d you can either 765 hand-edit the rcvar= line, or reinstall the port. 766 767 An easy way to handle the mass-update of /etc/rc.d: 768 rm /etc/rc.d/* && mergemaster -i 769 77020120109: 771 panic(9) now stops other CPUs in the SMP systems, disables interrupts 772 on the current CPU and prevents other threads from running. 773 This behavior can be reverted using the kern.stop_scheduler_on_panic 774 tunable/sysctl. 775 The new behavior can be incompatible with kern.sync_on_panic. 776 77720111215: 778 The carp(4) facility has been changed significantly. Configuration 779 of the CARP protocol via ifconfig(8) has changed, as well as format 780 of CARP events submitted to devd(8) has changed. See manual pages 781 for more information. The arpbalance feature of carp(4) is currently 782 not supported anymore. 783 784 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 785 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 786 need to be recompiled. 787 78820111122: 789 The acpi_wmi(4) status device /dev/wmistat has been renamed to 790 /dev/wmistat0. 791 79220111108: 793 The option VFS_ALLOW_NONMPSAFE option has been added in order to 794 explicitely support non-MPSAFE filesystems. 795 It is on by default for all supported platform at this present 796 time. 797 79820111101: 799 The broken amd(4) driver has been replaced with esp(4) in the amd64, 800 i386 and pc98 GENERIC kernel configuration files. 801 80220110930: 803 sysinstall has been removed 804 80520110923: 806 The stable/9 branch created in subversion. This corresponds to the 807 RELENG_9 branch in CVS. 808 80920110913: 810 This commit modifies vfs_register() so that it uses a hash 811 calculation to set vfc_typenum, which is enabled by default. 812 The first time a system is booted after this change, the 813 vfc_typenum values will change for all file systems. The 814 main effect of this is a change to the NFS server file handles 815 for file systems that use vfc_typenum in their fsid, such as ZFS. 816 It will, however, prevent vfc_typenum from changing when file 817 systems are loaded in a different order for subsequent reboots. 818 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 819 until you are ready to remount all NFS clients after a reboot. 820 82120110828: 822 Bump the shared library version numbers for libraries that 823 do not use symbol versioning, have changed the ABI compared 824 to stable/8 and which shared library version was not bumped. 825 Done as part of 9.0-RELEASE cycle. 826 82720110815: 828 During the merge of Capsicum features, the fget(9) KPI was modified. 829 This may require the rebuilding of out-of-tree device drivers -- 830 issues have been reported specifically with the nVidia device driver. 831 __FreeBSD_version is bumped to 900041. 832 833 Also, there is a period between 20110811 and 20110814 where the 834 special devices /dev/{stdin,stdout,stderr} did not work correctly. 835 Building world from a kernel during that window may not work. 836 83720110628: 838 The packet filter (pf) code has been updated to OpenBSD 4.5. 839 You need to update userland tools to be in sync with kernel. 840 This update breaks backward compatibility with earlier pfsync(4) 841 versions. Care must be taken when updating redundant firewall setups. 842 84320110608: 844 The following sysctls and tunables are retired on x86 platforms: 845 machdep.hlt_cpus 846 machdep.hlt_logical_cpus 847 The following sysctl is retired: 848 machdep.hyperthreading_allowed 849 The sysctls were supposed to provide a way to dynamically offline and 850 online selected CPUs on x86 platforms, but the implementation has not 851 been reliable especially with SCHED_ULE scheduler. 852 machdep.hyperthreading_allowed tunable is still available to ignore 853 hyperthreading CPUs at OS level. 854 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 855 where X is an APIC ID of a CPU. Be advised, though, that disabling 856 CPUs in non-uniform fashion will result in non-uniform topology and 857 may lead to sub-optimal system performance with SCHED_ULE, which is 858 a default scheduler. 859 86020110607: 861 cpumask_t type is retired and cpuset_t is used in order to describe 862 a mask of CPUs. 863 86420110531: 865 Changes to ifconfig(8) for dynamic address family detection mandate 866 that you are running a kernel of 20110525 or later. Make sure to 867 follow the update procedure to boot a new kernel before installing 868 world. 869 87020110513: 871 Support for sun4v architecture is officially dropped 872 87320110503: 874 Several KPI breaking changes have been committed to the mii(4) layer, 875 the PHY drivers and consequently some Ethernet drivers using mii(4). 876 This means that miibus.ko and the modules of the affected Ethernet 877 drivers need to be recompiled. 878 879 Note to kernel developers: Given that the OUI bit reversion problem 880 was fixed as part of these changes all mii(4) commits related to OUIs, 881 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 882 handling, no longer can be merged verbatim to stable/8 and previous 883 branches. 884 88520110430: 886 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 887 into their kernel configurations along with 'device pci'. 888 88920110427: 890 The default NFS client is now the new NFS client, so fstype "newnfs" 891 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 892 Although mounts via fstype "nfs" will usually work without userland 893 changes, it is recommended that the mount(8) and mount_nfs(8) 894 commands be rebuilt from sources and that a link to mount_nfs called 895 mount_oldnfs be created. The new client is compiled into the 896 kernel with "options NFSCL" and this is needed for diskless root 897 file systems. The GENERIC kernel configs have been changed to use 898 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 899 To use the regular/old client, you can "mount -t oldnfs ...". For 900 a diskless root file system, you must also include a line like: 901 902 vfs.root.mountfrom="oldnfs:" 903 904 in the boot/loader.conf on the root fs on the NFS server to make 905 a diskless root fs use the old client. 906 90720110424: 908 The GENERIC kernels for all architectures now default to the new 909 CAM-based ATA stack. It means that all legacy ATA drivers were 910 removed and replaced by respective CAM drivers. If you are using 911 ATA device names in /etc/fstab or other places, make sure to update 912 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 913 where 'Y's are the sequential numbers starting from zero for each type 914 in order of detection, unless configured otherwise with tunables, 915 see cam(4)). There will be symbolic links created in /dev/ to map 916 old adX devices to the respective adaY. They should provide basic 917 compatibility for file systems mounting in most cases, but they do 918 not support old user-level APIs and do not have respective providers 919 in GEOM. Consider using updated management tools with new device names. 920 921 It is possible to load devices ahci, ata, siis and mvs as modules, 922 but option ATA_CAM should remain in kernel configuration to make ata 923 module work as CAM driver supporting legacy ATA controllers. Device ata 924 still can be used in modular fashion (atacore + ...). Modules atadisk 925 and atapi* are not used and won't affect operation in ATA_CAM mode. 926 Note that to use CAM-based ATA kernel should include CAM devices 927 scbus, pass, da (or explicitly ada), cd and optionally others. All of 928 them are parts of the cam module. 929 930 ataraid(4) functionality is now supported by the RAID GEOM class. 931 To use it you can load geom_raid kernel module and use graid(8) tool 932 for management. Instead of /dev/arX device names, use /dev/raid/rX. 933 934 No kernel config options or code have been removed, so if a problem 935 arises, please report it and optionally revert to the old ATA stack. 936 In order to do it you can remove from the kernel config: 937 options ATA_CAM 938 device ahci 939 device mvs 940 device siis 941 , and instead add back: 942 device atadisk # ATA disk drives 943 device ataraid # ATA RAID drives 944 device atapicd # ATAPI CDROM drives 945 device atapifd # ATAPI floppy drives 946 device atapist # ATAPI tape drives 947 94820110423: 949 The default NFS server has been changed to the new server, which 950 was referred to as the experimental server. If you need to switch 951 back to the old NFS server, you must now put the "-o" option on 952 both the mountd and nfsd commands. This can be done using the 953 mountd_flags and nfs_server_flags rc.conf variables until an 954 update to the rc scripts is committed, which is coming soon. 955 95620110418: 957 The GNU Objective-C runtime library (libobjc), and other Objective-C 958 related components have been removed from the base system. If you 959 require an Objective-C library, please use one of the available ports. 960 96120110331: 962 ath(4) has been split into bus- and device- modules. if_ath contains 963 the HAL, the TX rate control and the network device code. if_ath_pci 964 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 965 contains the AHB glue. Users need to load both if_ath_pci and if_ath 966 in order to use ath on everything else. 967 968 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 969 need to load if_ath and if_ath_pci for ath(4) operation. 970 97120110314: 972 As part of the replacement of sysinstall, the process of building 973 release media has changed significantly. For details, please re-read 974 release(7), which has been updated to reflect the new build process. 975 97620110218: 977 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 978 is the last available version under GPLv2. It brings a number of new 979 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 980 4.1 and SSE 4.2), better support for powerpc64, a number of new 981 directives, and lots of other small improvements. See the ChangeLog 982 file in contrib/binutils for the full details. 983 98420110218: 985 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 986 compliant, and will now use half of hash for authentication. 987 This will break interoperability with all stacks (including all 988 actual FreeBSD versions) who implement 989 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 990 authentication). 991 The only workaround with such peers is to use another HMAC 992 algorithm for IPsec ("phase 2") authentication. 993 99420110207: 995 Remove the uio_yield prototype and symbol. This function has 996 been misnamed since it was introduced and should not be 997 globally exposed with this name. The equivalent functionality 998 is now available using kern_yield(curthread->td_user_pri). 999 The function remains undocumented. 1000 100120110112: 1002 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1003 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1004 for scalar sysctls is defined but disabled. Code that needs 1005 UQUAD to pass the type checking that must compile on older 1006 systems where the define is not present can check against 1007 __FreeBSD_version >= 900030. 1008 1009 The system dialog(1) has been replaced with a new version previously 1010 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1011 with the previous version, but the libdialog associated with it has 1012 a largely incompatible API. As such, the original version of libdialog 1013 will be kept temporarily as libodialog, until its base system consumers 1014 are replaced or updated. Bump __FreeBSD_version to 900030. 1015 101620110103: 1017 If you are trying to run make universe on a -stable system, and you get 1018 the following warning: 1019 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1020 unknown. config(8) likely too old." 1021 or something similar to it, then you must upgrade your -stable system 1022 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1023 stable/8) or build the config from the latest stable/8 branch and 1024 install it on your system. 1025 1026 Prior to this date, building a current universe on 8-stable system from 1027 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1028 error in the first kernel build phase. A new config on those old 1029 systems will fix that problem for older versions of -current. 1030 103120101228: 1032 The TCP stack has been modified to allow Khelp modules to interact with 1033 it via helper hook points and store per-connection data in the TCP 1034 control block. Bump __FreeBSD_version to 900029. User space tools that 1035 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1036 be recompiled. 1037 103820101114: 1039 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1040 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1041 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1042 to take advantage of it instead of using custom implementations. This 1043 means that these drivers now no longer unconditionally advertise 1044 support for flow control but only do so if flow control is a selected 1045 media option. This was implemented in the generic support that way in 1046 order to allow flow control to be switched on and off via ifconfig(8) 1047 with the PHY specific default to typically off in order to protect 1048 from unwanted effects. Consequently, if you used flow control with 1049 one of the above mentioned drivers you now need to explicitly enable 1050 it, for example via: 1051 ifconfig bge0 media auto mediaopt flowcontrol 1052 1053 Along with the above mentioned changes generic support for setting 1054 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1055 e1000phy(4) as well as ip1000phy(4) have been converted to take 1056 advantage of it. This means that these drivers now no longer take the 1057 link0 parameter for selecting master mode but the master media option 1058 has to be used instead, for example like in the following: 1059 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1060 1061 Selection of master mode now is also available with all other PHY 1062 drivers supporting 1000baseT. 1063 106420101111: 1065 The TCP stack has received a significant update to add support for 1066 modularised congestion control and generally improve the clarity of 1067 congestion control decisions. Bump __FreeBSD_version to 900025. User 1068 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1069 sockstat) need to be recompiled. 1070 107120101002: 1072 The man(1) utility has been replaced by a new version that no longer 1073 uses /etc/manpath.config. Please consult man.conf(5) for how to 1074 migrate local entries to the new format. 1075 107620100928: 1077 The copyright strings printed by login(1) and sshd(8) at the time of a 1078 new connection have been removed to follow other operating systems and 1079 upstream sshd. 1080 108120100915: 1082 A workaround for a fixed ld bug has been removed in kernel code, 1083 so make sure that your system ld is built from sources after 1084 revision 210245 from 2010-07-19 (r211583 if building head kernel 1085 on stable/8, r211584 for stable/7; both from 2010-08-21). 1086 A symptom of incorrect ld version is different addresses for 1087 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1088 108920100913: 1090 The $ipv6_prefer variable in rc.conf(5) has been split into 1091 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1092 1093 The $ip6addrctl_policy is a variable to choose a pre-defined 1094 address selection policy set by ip6addrctl(8). A value 1095 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1096 default is "AUTO". 1097 1098 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1099 flag (see an entry of 20090926) is set on an interface with no 1100 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1101 security reason. If you want IPv6 link-local address on all 1102 interfaces by default, set this to "YES". 1103 1104 The old ipv6_prefer="YES" is equivalent to 1105 ipv6_activate_all_interfaces="YES" and 1106 ip6addrctl_policy="ipv6_prefer". 1107 110820100913: 1109 DTrace has grown support for userland tracing. Due to this, DTrace is 1110 now i386 and amd64 only. 1111 dtruss(1) is now installed by default on those systems and a new 1112 kernel module is needed for userland tracing: fasttrap. 1113 No changes to your kernel config file are necessary to enable 1114 userland tracing, but you might consider adding 'STRIP=' and 1115 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1116 to have informative userland stack traces in DTrace (ustack). 1117 111820100725: 1119 The acpi_aiboost(4) driver has been removed in favor of the new 1120 aibs(4) driver. You should update your kernel configuration file. 1121 112220100722: 1123 BSD grep has been imported to the base system and it is built by 1124 default. It is completely BSD licensed, highly GNU-compatible, uses 1125 less memory than its GNU counterpart and has a small codebase. 1126 However, it is slower than its GNU counterpart, which is mostly 1127 noticeable for larger searches, for smaller ones it is measurable 1128 but not significant. The reason is complex, the most important factor 1129 is that we lack a modern and efficient regex library and GNU 1130 overcomes this by optimizing the searches internally. Future work 1131 on improving the regex performance is planned, for the meantime, 1132 users that need better performance, can build GNU grep instead by 1133 setting the WITH_GNU_GREP knob. 1134 113520100713: 1136 Due to the import of powerpc64 support, all existing powerpc kernel 1137 configuration files must be updated with a machine directive like this: 1138 machine powerpc powerpc 1139 1140 In addition, an updated config(8) is required to build powerpc kernels 1141 after this change. 1142 114320100713: 1144 A new version of ZFS (version 15) has been merged to -HEAD. 1145 This version uses a python library for the following subcommands: 1146 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1147 For full functionality of these commands the following port must 1148 be installed: sysutils/py-zfs 1149 115020100429: 1151 'vm_page's are now hashed by physical address to an array of mutexes. 1152 Currently this is only used to serialize access to hold_count. Over 1153 time the page queue mutex will be peeled away. This changes the size 1154 of pmap on every architecture. And requires all callers of vm_page_hold 1155 and vm_page_unhold to be updated. 1156 115720100402: 1158 WITH_CTF can now be specified in src.conf (not recommended, there 1159 are some problems with static executables), make.conf (would also 1160 affect ports which do not use GNU make and do not override the 1161 compile targets) or in the kernel config (via "makeoptions 1162 WITH_CTF=yes"). 1163 When WITH_CTF was specified there before this was silently ignored, 1164 so make sure that WITH_CTF is not used in places which could lead 1165 to unwanted behavior. 1166 116720100311: 1168 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1169 to allow 32-bit compatibility on non-x86 platforms. All kernel 1170 configurations on amd64 and ia64 platforms using these options must 1171 be modified accordingly. 1172 117320100113: 1174 The utmp user accounting database has been replaced with utmpx, 1175 the user accounting interface standardized by POSIX. 1176 Unfortunately the semantics of utmp and utmpx don't match, 1177 making it practically impossible to support both interfaces. 1178 The user accounting database is used by tools like finger(1), 1179 last(1), talk(1), w(1) and ac(8). 1180 1181 All applications in the base system use utmpx. This means only 1182 local binaries (e.g. from the ports tree) may still use these 1183 utmp database files. These applications must be rebuilt to make 1184 use of utmpx. 1185 1186 After the system has been upgraded, it is safe to remove the old 1187 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1188 assuming their contents is of no importance anymore. Old wtmp 1189 databases can only be used by last(1) and ac(8) after they have 1190 been converted to the new format using wtmpcvt(1). 1191 119220100108: 1193 Introduce the kernel thread "deadlock resolver" (which can be enabled 1194 via the DEADLKRES option, see NOTES for more details) and the 1195 sleepq_type() function for sleepqueues. 1196 119720091202: 1198 The rc.firewall and rc.firewall6 were unified, and 1199 rc.firewall6 and rc.d/ip6fw were removed. 1200 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1201 variables are obsoleted. Instead, the following new rc 1202 variables are added to rc.d/ipfw: 1203 1204 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1205 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1206 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1207 1208 The meanings correspond to the relevant IPv4 variables. 1209 121020091125: 1211 8.0-RELEASE. 1212 121320091113: 1214 The default terminal emulation for syscons(4) has been changed 1215 from cons25 to xterm on all platforms except pc98. This means 1216 that the /etc/ttys file needs to be updated to ensure correct 1217 operation of applications on the console. 1218 1219 The terminal emulation style can be toggled per window by using 1220 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1221 options can be used to change the compile-time default back to 1222 cons25. 1223 1224 To prevent graphical artifacts, make sure the TERM environment 1225 variable is set to match the terminal emulation that is being 1226 performed by syscons(4). 1227 122820091109: 1229 The layout of the structure ieee80211req_scan_result has changed. 1230 Applications that require wireless scan results (e.g. ifconfig(8)) 1231 from net80211 need to be recompiled. 1232 1233 Applications such as wpa_supplicant(8) may require a full world 1234 build without using NO_CLEAN in order to get synchronized with the 1235 new structure. 1236 123720091025: 1238 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1239 There's one kernel module for each firmware. Adding "device iwnfw" 1240 to the kernel configuration file means including all three firmware 1241 images inside the kernel. If you want to include just the one for 1242 your wireless card, use the devices iwn4965fw, iwn5000fw or 1243 iwn5150fw. 1244 124520090926: 1246 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1247 into rc.d/netif. The changes are the following: 1248 1249 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1250 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1251 Note that both variables need the "inet6" keyword at the head. 1252 1253 Do not set $ipv6_network_interfaces manually if you do not 1254 understand what you are doing. It is not needed in most cases. 1255 1256 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1257 they are obsolete. 1258 1259 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1260 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1261 1262 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1263 all configured interfaces have "inet6 accept_rtadv" in the 1264 $ifconfig_IF_ipv6. These are for backward compatibility. 1265 1266 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1267 functionality of interfaces with no corresponding 1268 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1269 and the default address selection policy of ip6addrctl(8) 1270 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1271 Note that if you want to configure IPv6 functionality on the 1272 disabled interfaces after boot, first you need to clear the flag by 1273 using ifconfig(8) like: 1274 1275 ifconfig em0 inet6 -ifdisabled 1276 1277 If YES, the default address selection policy is set as 1278 IPv6-preferred. 1279 1280 The default value of $ipv6_prefer is NO. 1281 1282 4. If your system need to receive Router Advertisement messages, 1283 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1284 scripts automatically invoke rtsol(8) when the interface becomes 1285 UP. The Router Advertisement messages are used for SLAAC 1286 (State-Less Address AutoConfiguration). 1287 128820090922: 1289 802.11s D3.03 support was committed. This is incompatible with the 1290 previous code, which was based on D3.0. 1291 129220090912: 1293 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1294 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1295 control whether accepting Router Advertisement messages or not. 1296 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1297 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1298 The ifconfig(8) utility now supports these flags. 1299 130020090910: 1301 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1302 mount(8) and -a option for df(1) to see them. 1303 130420090825: 1305 The old tunable hw.bus.devctl_disable has been superseded by 1306 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1307 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1308 is 1000. 1309 131020090813: 1311 Remove the option STOP_NMI. The default action is now to use NMI only 1312 for KDB via the newly introduced function stop_cpus_hard() and 1313 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1314 131520090803: 1316 The stable/8 branch created in subversion. This corresponds to the 1317 RELENG_8 branch in CVS. 1318 131920090719: 1320 Bump the shared library version numbers for all libraries that do not 1321 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1322 __FreeBSD_version to 800105. 1323 132420090714: 1325 Due to changes in the implementation of virtual network stack support, 1326 all network-related kernel modules must be recompiled. As this change 1327 breaks the ABI, bump __FreeBSD_version to 800104. 1328 132920090713: 1330 The TOE interface to the TCP syncache has been modified to remove 1331 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1332 The cxgb driver is the only TOE consumer affected by this change, and 1333 needs to be recompiled along with the kernel. As this change breaks 1334 the ABI, bump __FreeBSD_version to 800103. 1335 133620090712: 1337 Padding has been added to struct tcpcb, sackhint and tcpstat in 1338 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1339 maintaining the ABI. However, this change breaks the ABI, so bump 1340 __FreeBSD_version to 800102. User space tools that rely on the size of 1341 any of these structs (e.g. sockstat) need to be recompiled. 1342 134320090630: 1344 The NFS_LEGACYRPC option has been removed along with the old kernel 1345 RPC implementation that this option selected. Kernel configurations 1346 may need to be adjusted. 1347 134820090629: 1349 The network interface device nodes at /dev/net/<interface> have been 1350 removed. All ioctl operations can be performed the normal way using 1351 routing sockets. The kqueue functionality can generally be replaced 1352 with routing sockets. 1353 135420090628: 1355 The documentation from the FreeBSD Documentation Project (Handbook, 1356 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1357 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1358 135920090624: 1360 The ABI of various structures related to the SYSV IPC API have been 1361 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1362 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1363 800100. 1364 136520090622: 1366 Layout of struct vnet has changed as routing related variables were 1367 moved to their own Vimage module. Modules need to be recompiled. Bump 1368 __FreeBSD_version to 800099. 1369 137020090619: 1371 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1372 respectively. As long as no more than 16 groups per process are used, 1373 no changes should be visible. When more than 16 groups are used, old 1374 binaries may fail if they call getgroups() or getgrouplist() with 1375 statically sized storage. Recompiling will work around this, but 1376 applications should be modified to use dynamically allocated storage 1377 for group arrays as POSIX.1-2008 does not cap an implementation's 1378 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1379 1380 NFS and portalfs mounts may also be affected as the list of groups is 1381 truncated to 16. Users of NFS who use more than 16 groups, should 1382 take care that negative group permissions are not used on the exported 1383 file systems as they will not be reliable unless a GSSAPI based 1384 authentication method is used. 1385 138620090616: 1387 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1388 option compiles in the support for adaptive spinning for lockmgrs 1389 which want to enable it. The lockinit() function now accepts the flag 1390 LK_ADAPTIVE in order to make the lock object subject to adaptive 1391 spinning when both held in write and read mode. 1392 139320090613: 1394 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1395 changed. User applications that use this ioctl need to be rebuilt. 1396 139720090611: 1398 The layout of struct thread has changed. Kernel and modules need to 1399 be rebuilt. 1400 140120090608: 1402 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1403 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1404 140520090602: 1406 window(1) has been removed from the base system. It can now be 1407 installed from ports. The port is called misc/window. 1408 140920090601: 1410 The way we are storing and accessing `routing table' entries has 1411 changed. Programs reading the FIB, like netstat, need to be 1412 re-compiled. 1413 141420090601: 1415 A new netisr implementation has been added for FreeBSD 8. Network 1416 file system modules, such as igmp, ipdivert, and others, should be 1417 rebuilt. 1418 Bump __FreeBSD_version to 800096. 1419 142020090530: 1421 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1422 more valid. 1423 142420090530: 1425 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1426 Bump __FreeBSD_version to 800094. 1427 142820090529: 1429 Add mnt_xflag field to 'struct mount'. File system modules need to be 1430 rebuilt. 1431 Bump __FreeBSD_version to 800093. 1432 143320090528: 1434 The compiling option ADAPTIVE_SX has been retired while it has been 1435 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1436 The KPI for sx_init_flags() changes as accepting flags: 1437 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1438 been introduced in order to handle the reversed logic. 1439 Bump __FreeBSD_version to 800092. 1440 144120090527: 1442 Add support for hierarchical jails. Remove global securelevel. 1443 Bump __FreeBSD_version to 800091. 1444 144520090523: 1446 The layout of struct vnet_net has changed, therefore modules 1447 need to be rebuilt. 1448 Bump __FreeBSD_version to 800090. 1449 145020090523: 1451 The newly imported zic(8) produces a new format in the output. Please 1452 run tzsetup(8) to install the newly created data to /etc/localtime. 1453 145420090520: 1455 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1456 hw.usb.* and is now consistent again with previous releases. 1457 145820090520: 1459 802.11 monitor mode support was revised and driver api's were changed. 1460 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1461 of DLT_IEEE802_11. No user-visible data structures were changed but 1462 applications that use DLT_IEEE802_11 may require changes. 1463 Bump __FreeBSD_version to 800088. 1464 146520090430: 1466 The layout of the following structs has changed: sysctl_oid, 1467 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1468 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1469 panics may be experienced. World rebuild is required for 1470 correctly checking networking state from userland. 1471 Bump __FreeBSD_version to 800085. 1472 147320090429: 1474 MLDv2 and Source-Specific Multicast (SSM) have been merged 1475 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1476 The implementation of SSM within FreeBSD's IPv6 stack closely 1477 follows the IPv4 implementation. 1478 1479 For kernel developers: 1480 1481 * The most important changes are that the ip6_output() and 1482 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1483 and this lock has been downgraded to a non-recursive mutex. 1484 1485 * As with the changes to the IPv4 stack to support SSM, filtering 1486 of inbound multicast traffic must now be performed by transport 1487 protocols within the IPv6 stack. This does not apply to TCP and 1488 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1489 1490 * The KPIs used by IPv6 multicast are similar to those used by 1491 the IPv4 stack, with the following differences: 1492 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1493 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1494 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1495 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1496 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1497 for MLDv1 have an additional 'timer' argument which is used to 1498 jitter the initial membership report for the solicited-node 1499 multicast membership on-link. 1500 * This is not strictly needed for MLDv2, which already jitters 1501 its report transmissions. However, the 'timer' argument is 1502 preserved in case MLDv1 is active on the interface. 1503 1504 * The KAME linked-list based IPv6 membership implementation has 1505 been refactored to use a vector similar to that used by the IPv4 1506 stack. 1507 Code which maintains a list of its own multicast memberships 1508 internally, e.g. carp, has been updated to reflect the new 1509 semantics. 1510 1511 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1512 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1513 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1514 implementation constraint which needs to be addressed in HEAD. 1515 1516 For application developers: 1517 1518 * The changes are broadly similar to those made for the IPv4 1519 stack. 1520 1521 * The use of IPv4 and IPv6 multicast socket options on the same 1522 socket, using mapped addresses, HAS NOT been tested or supported. 1523 1524 * There are a number of issues with the implementation of various 1525 IPv6 multicast APIs which need to be resolved in the API surface 1526 before the implementation is fully compatible with KAME userland 1527 use, and these are mostly to do with interface index treatment. 1528 1529 * The literature available discusses the use of either the delta / ASM 1530 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1531 using setsourcefilter(3)/getsourcefilter(3). For more information 1532 please refer to RFC 3768, 'Socket Interface Extensions for 1533 Multicast Source Filters'. 1534 1535 * Applications which use the published RFC 3678 APIs should be fine. 1536 1537 For systems administrators: 1538 1539 * The mtest(8) utility has been refactored to support IPv6, in 1540 addition to IPv4. Interface addresses are no longer accepted 1541 as arguments, their names must be used instead. The utility 1542 will map the interface name to its first IPv4 address as 1543 returned by getifaddrs(3). 1544 1545 * The ifmcstat(8) utility has also been updated to print the MLDv2 1546 endpoint state and source filter lists via sysctl(3). 1547 1548 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1549 loopback of IPv6 multicast datagrams by default; it defaults to 1 1550 to preserve the existing behaviour. Disabling multicast loopback is 1551 recommended for optimal system performance. 1552 1553 * The IPv6 MROUTING code has been changed to examine this sysctl 1554 instead of attempting to perform a group lookup before looping 1555 back forwarded datagrams. 1556 1557 Bump __FreeBSD_version to 800084. 1558 155920090422: 1560 Implement low-level Bluetooth HCI API. 1561 Bump __FreeBSD_version to 800083. 1562 156320090419: 1564 The layout of struct malloc_type, used by modules to register new 1565 memory allocation types, has changed. Most modules will need to 1566 be rebuilt or panics may be experienced. 1567 Bump __FreeBSD_version to 800081. 1568 156920090415: 1570 Anticipate overflowing inp_flags - add inp_flags2. 1571 This changes most offsets in inpcb, so checking v4 connection 1572 state will require a world rebuild. 1573 Bump __FreeBSD_version to 800080. 1574 157520090415: 1576 Add an llentry to struct route and struct route_in6. Modules 1577 embedding a struct route will need to be recompiled. 1578 Bump __FreeBSD_version to 800079. 1579 158020090414: 1581 The size of rt_metrics_lite and by extension rtentry has changed. 1582 Networking administration apps will need to be recompiled. 1583 The route command now supports show as an alias for get, weighting 1584 of routes, sticky and nostick flags to alter the behavior of stateful 1585 load balancing. 1586 Bump __FreeBSD_version to 800078. 1587 158820090408: 1589 Do not use Giant for kbdmux(4) locking. This is wrong and 1590 apparently causing more problems than it solves. This will 1591 re-open the issue where interrupt handlers may race with 1592 kbdmux(4) in polling mode. Typical symptoms include (but 1593 not limited to) duplicated and/or missing characters when 1594 low level console functions (such as gets) are used while 1595 interrupts are enabled (for example geli password prompt, 1596 mountroot prompt etc.). Disabling kbdmux(4) may help. 1597 159820090407: 1599 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1600 kernel modules referencing any of the above need to be recompiled. 1601 Bump __FreeBSD_version to 800075. 1602 160320090320: 1604 GEOM_PART has become the default partition slicer for storage devices, 1605 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1606 introduces some changes: 1607 1608 MSDOS/EBR: the devices created from MSDOS extended partition entries 1609 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1610 to devices with offset-based names. fstabs may need to be modified. 1611 1612 BSD: the "geometry does not match label" warning is harmless in most 1613 cases but it points to problems in file system misalignment with 1614 disk geometry. The "c" partition is now implicit, covers the whole 1615 top-level drive and cannot be (mis)used by users. 1616 1617 General: Kernel dumps are now not allowed to be written to devices 1618 whose partition types indicate they are meant to be used for file 1619 systems (or, in case of MSDOS partitions, as something else than 1620 the "386BSD" type). 1621 1622 Most of these changes date approximately from 200812. 1623 162420090319: 1625 The uscanner(4) driver has been removed from the kernel. This follows 1626 Linux removing theirs in 2.6 and making libusb the default interface 1627 (supported by sane). 1628 162920090319: 1630 The multicast forwarding code has been cleaned up. netstat(1) 1631 only relies on KVM now for printing bandwidth upcall meters. 1632 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1633 ip6_mroute_mod respectively. The config(5) options for statically 1634 compiling this code remain the same, i.e. 'options MROUTING'. 1635 163620090315: 1637 Support for the IFF_NEEDSGIANT network interface flag has been 1638 removed, which means that non-MPSAFE network device drivers are no 1639 longer supported. In particular, if_ar, if_sr, and network device 1640 drivers from the old (legacy) USB stack can no longer be built or 1641 used. 1642 164320090313: 1644 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1645 a bunch of new language catalog files have also been added. 1646 This means that some common libc messages are now localized and 1647 they depend on the LC_MESSAGES environmental variable. 1648 164920090313: 1650 The k8temp(4) driver has been renamed to amdtemp(4) since 1651 support for Family 10 and Family 11 CPU families was added. 1652 165320090309: 1654 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1655 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1656 1657 For kernel developers, the most important changes are that the 1658 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1659 and this lock has been downgraded to a non-recursive mutex. 1660 1661 Transport protocols (UDP, Raw IP) are now responsible for filtering 1662 inbound multicast traffic according to group membership and source 1663 filters. The imo_multicast_filter() KPI exists for this purpose. 1664 Transports which do not use multicast (SCTP, TCP) already reject 1665 multicast by default. Forwarding and receive performance may improve 1666 as a mutex acquisition is no longer needed in the ip_input() 1667 low-level input path. in_addmulti() and in_delmulti() are shimmed 1668 to new KPIs which exist to support SSM in-kernel. 1669 1670 For application developers, it is recommended that loopback of 1671 multicast datagrams be disabled for best performance, as this 1672 will still cause the lock to be taken for each looped-back 1673 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1674 be tuned to 0 to disable loopback by default; it defaults to 1 1675 to preserve the existing behaviour. 1676 1677 For systems administrators, to obtain best performance with 1678 multicast reception and multiple groups, it is always recommended 1679 that a card with a suitably precise hash filter is used. Hash 1680 collisions will still result in the lock being taken within the 1681 transport protocol input path to check group membership. 1682 1683 If deploying FreeBSD in an environment with IGMP snooping switches, 1684 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1685 enabled; this forces 224.0.0.0/24 group membership to be announced 1686 via IGMP. 1687 1688 The size of 'struct igmpstat' has changed; netstat needs to be 1689 recompiled to reflect this. 1690 Bump __FreeBSD_version to 800070. 1691 169220090309: 1693 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1694 updated to use it. This requires a buildworld/installworld in order to 1695 update the library and dependencies (usbconfig, etc). Its advisable to 1696 rebuild all ports which uses libusb. More specific directions are given 1697 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1698 libusb are no longer required and can be removed. 1699 170020090302: 1701 A workaround is committed to allow the creation of System V shared 1702 memory segment of size > 2 GB on the 64-bit architectures. 1703 Due to a limitation of the existing ABI, the shm_segsz member 1704 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1705 wrong for large segments. Note that limits must be explicitly 1706 raised to allow such segments to be created. 1707 170820090301: 1709 The layout of struct ifnet has changed, requiring a rebuild of all 1710 network device driver modules. 1711 171220090227: 1713 The /dev handling for the new USB stack has changed, a 1714 buildworld/installworld is required for libusb20. 1715 171620090223: 1717 The new USB2 stack has now been permanently moved in and all kernel and 1718 module names reverted to their previous values (eg, usb, ehci, ohci, 1719 ums, ...). The old usb stack can be compiled in by prefixing the name 1720 with the letter 'o', the old usb modules have been removed. 1721 Updating entry 20090216 for xorg and 20090215 for libmap may still 1722 apply. 1723 172420090217: 1725 The rc.conf(5) option if_up_delay has been renamed to 1726 defaultroute_delay to better reflect its purpose. If you have 1727 customized this setting in /etc/rc.conf you need to update it to 1728 use the new name. 1729 173020090216: 1731 xorg 7.4 wants to configure its input devices via hald which does not 1732 yet work with USB2. If the keyboard/mouse does not work in xorg then 1733 add 1734 Option "AllowEmptyInput" "off" 1735 to your ServerLayout section. This will cause X to use the configured 1736 kbd and mouse sections from your xorg.conf. 1737 173820090215: 1739 The GENERIC kernels for all architectures now default to the new USB2 1740 stack. No kernel config options or code have been removed so if a 1741 problem arises please report it and optionally revert to the old USB 1742 stack. If you are loading USB kernel modules or have a custom kernel 1743 that includes GENERIC then ensure that usb names are also changed over, 1744 eg uftdi -> usb2_serial_ftdi. 1745 1746 Older programs linked against the ports libusb 0.1 need to be 1747 redirected to the new stack's libusb20. /etc/libmap.conf can 1748 be used for this: 1749 # Map old usb library to new one for usb2 stack 1750 libusb-0.1.so.8 libusb20.so.1 1751 175220090209: 1753 All USB ethernet devices now attach as interfaces under the name ueN 1754 (eg. ue0). This is to provide a predictable name as vendors often 1755 change usb chipsets in a product without notice. 1756 175720090203: 1758 The ichsmb(4) driver has been changed to require SMBus slave 1759 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1760 All of the other SMBus controller drivers require left-justified 1761 slave addresses, so this change makes all the drivers provide the 1762 same interface. 1763 176420090201: 1765 INET6 statistics (struct ip6stat) was updated. 1766 netstat(1) needs to be recompiled. 1767 176820090119: 1769 NTFS has been removed from GENERIC kernel on amd64 to match 1770 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1771 will load ntfs.ko module automatically when NTFS support is 1772 actually needed, unless ntfs.ko is not installed or security 1773 level prohibits loading kernel modules. If either is the case, 1774 "options NTFS" has to be added into kernel config. 1775 177620090115: 1777 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1778 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1779 800061. User space tools that rely on the size of struct tcpcb in 1780 tcp_var.h (e.g. sockstat) need to be recompiled. 1781 178220081225: 1783 ng_tty(4) module updated to match the new TTY subsystem. 1784 Due to API change, user-level applications must be updated. 1785 New API support added to mpd5 CVS and expected to be present 1786 in next mpd5.3 release. 1787 178820081219: 1789 With __FreeBSD_version 800060 the makefs tool is part of 1790 the base system (it was a port). 1791 179220081216: 1793 The afdata and ifnet locks have been changed from mutexes to 1794 rwlocks, network modules will need to be re-compiled. 1795 179620081214: 1797 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1798 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1799 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1800 architecture and 40 bytes on 64-bit architecture. The userland 1801 applications "arp" and "ndp" have been updated accordingly. 1802 The output from "netstat -r" shows only routing entries and 1803 none of the L2 information. 1804 180520081130: 1806 __FreeBSD_version 800057 marks the switchover from the 1807 binary ath hal to source code. Users must add the line: 1808 1809 options AH_SUPPORT_AR5416 1810 1811 to their kernel config files when specifying: 1812 1813 device ath_hal 1814 1815 The ath_hal module no longer exists; the code is now compiled 1816 together with the driver in the ath module. It is now 1817 possible to tailor chip support (i.e. reduce the set of chips 1818 and thereby the code size); consult ath_hal(4) for details. 1819 182020081121: 1821 __FreeBSD_version 800054 adds memory barriers to 1822 <machine/atomic.h>, new interfaces to ifnet to facilitate 1823 multiple hardware transmit queues for cards that support 1824 them, and a lock-less ring-buffer implementation to 1825 enable drivers to more efficiently manage queueing of 1826 packets. 1827 182820081117: 1829 A new version of ZFS (version 13) has been merged to -HEAD. 1830 This version has zpool attribute "listsnapshots" off by 1831 default, which means "zfs list" does not show snapshots, 1832 and is the same as Solaris behavior. 1833 183420081028: 1835 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1836 183720081009: 1838 The uhci, ohci, ehci and slhci USB Host controller drivers have 1839 been put into separate modules. If you load the usb module 1840 separately through loader.conf you will need to load the 1841 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1842 controller add the following to loader.conf: 1843 1844 uhci_load="YES" 1845 ehci_load="YES" 1846 184720081009: 1848 The ABI used by the PMC toolset has changed. Please keep 1849 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1850 sync. 1851 185220081009: 1853 atapci kernel module now includes only generic PCI ATA 1854 driver. AHCI driver moved to ataahci kernel module. 1855 All vendor-specific code moved into separate kernel modules: 1856 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1857 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1858 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1859 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1860 186120080820: 1862 The TTY subsystem of the kernel has been replaced by a new 1863 implementation, which provides better scalability and an 1864 improved driver model. Most common drivers have been migrated to 1865 the new TTY subsystem, while others have not. The following 1866 drivers have not yet been ported to the new TTY layer: 1867 1868 PCI/ISA: 1869 cy, digi, rc, rp, sio 1870 1871 USB: 1872 ubser, ucycom 1873 1874 Line disciplines: 1875 ng_h4, ng_tty, ppp, sl, snp 1876 1877 Adding these drivers to your kernel configuration file shall 1878 cause compilation to fail. 1879 188020080818: 1881 ntpd has been upgraded to 4.2.4p5. 1882 188320080801: 1884 OpenSSH has been upgraded to 5.1p1. 1885 1886 For many years, FreeBSD's version of OpenSSH preferred DSA 1887 over RSA for host and user authentication keys. With this 1888 upgrade, we've switched to the vendor's default of RSA over 1889 DSA. This may cause upgraded clients to warn about unknown 1890 host keys even for previously known hosts. Users should 1891 follow the usual procedure for verifying host keys before 1892 accepting the RSA key. 1893 1894 This can be circumvented by setting the "HostKeyAlgorithms" 1895 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1896 command line. 1897 1898 Please note that the sequence of keys offered for 1899 authentication has been changed as well. You may want to 1900 specify IdentityFile in a different order to revert this 1901 behavior. 1902 190320080713: 1904 The sio(4) driver has been removed from the i386 and amd64 1905 kernel configuration files. This means uart(4) is now the 1906 default serial port driver on those platforms as well. 1907 1908 To prevent collisions with the sio(4) driver, the uart(4) driver 1909 uses different names for its device nodes. This means the 1910 onboard serial port will now most likely be called "ttyu0" 1911 instead of "ttyd0". You may need to reconfigure applications to 1912 use the new device names. 1913 1914 When using the serial port as a boot console, be sure to update 1915 /boot/device.hints and /etc/ttys before booting the new kernel. 1916 If you forget to do so, you can still manually specify the hints 1917 at the loader prompt: 1918 1919 set hint.uart.0.at="isa" 1920 set hint.uart.0.port="0x3F8" 1921 set hint.uart.0.flags="0x10" 1922 set hint.uart.0.irq="4" 1923 boot -s 1924 192520080609: 1926 The gpt(8) utility has been removed. Use gpart(8) to partition 1927 disks instead. 1928 192920080603: 1930 The version that Linuxulator emulates was changed from 2.4.2 1931 to 2.6.16. If you experience any problems with Linux binaries 1932 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1933 if it fixes the problem contact emulation mailing list. 1934 193520080525: 1936 ISDN4BSD (I4B) was removed from the src tree. You may need to 1937 update a your kernel configuration and remove relevant entries. 1938 193920080509: 1940 I have checked in code to support multiple routing tables. 1941 See the man pages setfib(1) and setfib(2). 1942 This is a hopefully backwards compatible version, 1943 but to make use of it you need to compile your kernel 1944 with options ROUTETABLES=2 (or more up to 16). 1945 194620080420: 1947 The 802.11 wireless support was redone to enable multi-bss 1948 operation on devices that are capable. The underlying device 1949 is no longer used directly but instead wlanX devices are 1950 cloned with ifconfig. This requires changes to rc.conf files. 1951 For example, change: 1952 ifconfig_ath0="WPA DHCP" 1953 to 1954 wlans_ath0=wlan0 1955 ifconfig_wlan0="WPA DHCP" 1956 see rc.conf(5) for more details. In addition, mergemaster of 1957 /etc/rc.d is highly recommended. Simultaneous update of userland 1958 and kernel wouldn't hurt either. 1959 1960 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1961 modules were merged into the base wlan module. All references 1962 to these modules (e.g. in kernel config files) must be removed. 1963 196420080408: 1965 psm(4) has gained write(2) support in native operation level. 1966 Arbitrary commands can be written to /dev/psm%d and status can 1967 be read back from it. Therefore, an application is responsible 1968 for status validation and error recovery. It is a no-op in 1969 other operation levels. 1970 197120080312: 1972 Support for KSE threading has been removed from the kernel. To 1973 run legacy applications linked against KSE libmap.conf may 1974 be used. The following libmap.conf may be used to ensure 1975 compatibility with any prior release: 1976 1977 libpthread.so.1 libthr.so.1 1978 libpthread.so.2 libthr.so.2 1979 libkse.so.3 libthr.so.3 1980 198120080301: 1982 The layout of struct vmspace has changed. This affects libkvm 1983 and any executables that link against libkvm and use the 1984 kvm_getprocs() function. In particular, but not exclusively, 1985 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1986 The effects are minimal, but it's advisable to upgrade world 1987 nonetheless. 1988 198920080229: 1990 The latest em driver no longer has support in it for the 1991 82575 adapter, this is now moved to the igb driver. The 1992 split was done to make new features that are incompatible 1993 with older hardware easier to do. 1994 199520080220: 1996 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1997 likewise the kernel option is now GEOM_LINUX_LVM. 1998 199920080211: 2000 The default NFS mount mode has changed from UDP to TCP for 2001 increased reliability. If you rely on (insecurely) NFS 2002 mounting across a firewall you may need to update your 2003 firewall rules. 2004 200520080208: 2006 Belatedly note the addition of m_collapse for compacting 2007 mbuf chains. 2008 200920080126: 2010 The fts(3) structures have been changed to use adequate 2011 integer types for their members and so to be able to cope 2012 with huge file trees. The old fts(3) ABI is preserved 2013 through symbol versioning in libc, so third-party binaries 2014 using fts(3) should still work, although they will not take 2015 advantage of the extended types. At the same time, some 2016 third-party software might fail to build after this change 2017 due to unportable assumptions made in its source code about 2018 fts(3) structure members. Such software should be fixed 2019 by its vendor or, in the worst case, in the ports tree. 2020 FreeBSD_version 800015 marks this change for the unlikely 2021 case that a portable fix is impossible. 2022 202320080123: 2024 To upgrade to -current after this date, you must be running 2025 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2026 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2027 202820071128: 2029 The ADAPTIVE_GIANT kernel option has been retired because its 2030 functionality is the default now. 2031 203220071118: 2033 The AT keyboard emulation of sunkbd(4) has been turned on 2034 by default. In order to make the special symbols of the Sun 2035 keyboards driven by sunkbd(4) work under X these now have 2036 to be configured the same way as Sun USB keyboards driven 2037 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2038 2039 Option "XkbLayout" "us" 2040 Option "XkbRules" "xorg" 2041 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2042 204320071024: 2044 It has been decided that it is desirable to provide ABI 2045 backwards compatibility to the FreeBSD 4/5/6 versions of the 2046 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2047 broken with the introduction of PCI domain support (see the 2048 20070930 entry). Unfortunately, this required the ABI of 2049 PCIOCGETCONF to be broken again in order to be able to 2050 provide backwards compatibility to the old version of that 2051 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2052 again. As for prominent ports this affects neither pciutils 2053 nor xorg-server this time, the hal port needs to be rebuilt 2054 however. 2055 205620071020: 2057 The misnamed kthread_create() and friends have been renamed 2058 to kproc_create() etc. Many of the callers already 2059 used kproc_start().. 2060 I will return kthread_create() and friends in a while 2061 with implementations that actually create threads, not procs. 2062 Renaming corresponds with version 800002. 2063 206420071010: 2065 RELENG_7 branched. 2066 2067COMMON ITEMS: 2068 2069 General Notes 2070 ------------- 2071 Avoid using make -j when upgrading. While generally safe, there are 2072 sometimes problems using -j to upgrade. If your upgrade fails with 2073 -j, please try again without -j. From time to time in the past there 2074 have been problems using -j with buildworld and/or installworld. This 2075 is especially true when upgrading between "distant" versions (eg one 2076 that cross a major release boundary or several minor releases, or when 2077 several months have passed on the -current branch). 2078 2079 Sometimes, obscure build problems are the result of environment 2080 poisoning. This can happen because the make utility reads its 2081 environment when searching for values for global variables. To run 2082 your build attempts in an "environmental clean room", prefix all make 2083 commands with 'env -i '. See the env(1) manual page for more details. 2084 2085 When upgrading from one major version to another it is generally best 2086 to upgrade to the latest code in the currently installed branch first, 2087 then do an upgrade to the new branch. This is the best-tested upgrade 2088 path, and has the highest probability of being successful. Please try 2089 this approach before reporting problems with a major version upgrade. 2090 2091 When upgrading a live system, having a root shell around before 2092 installing anything can help undo problems. Not having a root shell 2093 around can lead to problems if pam has changed too much from your 2094 starting point to allow continued authentication after the upgrade. 2095 2096 ZFS notes 2097 --------- 2098 When upgrading the boot ZFS pool to a new version, always follow 2099 these two steps: 2100 2101 1.) recompile and reinstall the ZFS boot loader and boot block 2102 (this is part of "make buildworld" and "make installworld") 2103 2104 2.) update the ZFS boot block on your boot drive 2105 2106 The following example updates the ZFS boot block on the first 2107 partition (freebsd-boot) of a GPT partitioned drive ad0: 2108 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2109 2110 Non-boot pools do not need these updates. 2111 2112 To build a kernel 2113 ----------------- 2114 If you are updating from a prior version of FreeBSD (even one just 2115 a few days old), you should follow this procedure. It is the most 2116 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2117 2118 make kernel-toolchain 2119 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2120 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2121 2122 To test a kernel once 2123 --------------------- 2124 If you just want to boot a kernel once (because you are not sure 2125 if it works, or if you want to boot a known bad kernel to provide 2126 debugging information) run 2127 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2128 nextboot -k testkernel 2129 2130 To just build a kernel when you know that it won't mess you up 2131 -------------------------------------------------------------- 2132 This assumes you are already running a CURRENT system. Replace 2133 ${arch} with the architecture of your machine (e.g. "i386", 2134 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2135 2136 cd src/sys/${arch}/conf 2137 config KERNEL_NAME_HERE 2138 cd ../compile/KERNEL_NAME_HERE 2139 make depend 2140 make 2141 make install 2142 2143 If this fails, go to the "To build a kernel" section. 2144 2145 To rebuild everything and install it on the current system. 2146 ----------------------------------------------------------- 2147 # Note: sometimes if you are running current you gotta do more than 2148 # is listed here if you are upgrading from a really old current. 2149 2150 <make sure you have good level 0 dumps> 2151 make buildworld 2152 make kernel KERNCONF=YOUR_KERNEL_HERE 2153 [1] 2154 <reboot in single user> [3] 2155 mergemaster -p [5] 2156 make installworld 2157 mergemaster -i [4] 2158 make delete-old [6] 2159 <reboot> 2160 2161 To cross-install current onto a separate partition 2162 -------------------------------------------------- 2163 # In this approach we use a separate partition to hold 2164 # current's root, 'usr', and 'var' directories. A partition 2165 # holding "/", "/usr" and "/var" should be about 2GB in 2166 # size. 2167 2168 <make sure you have good level 0 dumps> 2169 <boot into -stable> 2170 make buildworld 2171 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2172 <maybe newfs current's root partition> 2173 <mount current's root partition on directory ${CURRENT_ROOT}> 2174 make installworld DESTDIR=${CURRENT_ROOT} 2175 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2176 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2177 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2178 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2179 <reboot into current> 2180 <do a "native" rebuild/install as described in the previous section> 2181 <maybe install compatibility libraries from ports/misc/compat*> 2182 <reboot> 2183 2184 2185 To upgrade in-place from stable to current 2186 ---------------------------------------------- 2187 <make sure you have good level 0 dumps> 2188 make buildworld [9] 2189 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2190 [1] 2191 <reboot in single user> [3] 2192 mergemaster -p [5] 2193 make installworld 2194 mergemaster -i [4] 2195 make delete-old [6] 2196 <reboot> 2197 2198 Make sure that you've read the UPDATING file to understand the 2199 tweaks to various things you need. At this point in the life 2200 cycle of current, things change often and you are on your own 2201 to cope. The defaults can also change, so please read ALL of 2202 the UPDATING entries. 2203 2204 Also, if you are tracking -current, you must be subscribed to 2205 freebsd-current@freebsd.org. Make sure that before you update 2206 your sources that you have read and understood all the recent 2207 messages there. If in doubt, please track -stable which has 2208 much fewer pitfalls. 2209 2210 [1] If you have third party modules, such as vmware, you 2211 should disable them at this point so they don't crash your 2212 system on reboot. 2213 2214 [3] From the bootblocks, boot -s, and then do 2215 fsck -p 2216 mount -u / 2217 mount -a 2218 cd src 2219 adjkerntz -i # if CMOS is wall time 2220 Also, when doing a major release upgrade, it is required that 2221 you boot into single user mode to do the installworld. 2222 2223 [4] Note: This step is non-optional. Failure to do this step 2224 can result in a significant reduction in the functionality of the 2225 system. Attempting to do it by hand is not recommended and those 2226 that pursue this avenue should read this file carefully, as well 2227 as the archives of freebsd-current and freebsd-hackers mailing lists 2228 for potential gotchas. The -U option is also useful to consider. 2229 See mergemaster(8) for more information. 2230 2231 [5] Usually this step is a noop. However, from time to time 2232 you may need to do this if you get unknown user in the following 2233 step. It never hurts to do it all the time. You may need to 2234 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2235 install) after the buildworld before this step if you last updated 2236 from current before 20130425 or from -stable before 20130430. 2237 2238 [6] This only deletes old files and directories. Old libraries 2239 can be deleted by "make delete-old-libs", but you have to make 2240 sure that no program is using those libraries anymore. 2241 2242 [8] In order to have a kernel that can run the 4.x binaries needed to 2243 do an installworld, you must include the COMPAT_FREEBSD4 option in 2244 your kernel. Failure to do so may leave you with a system that is 2245 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2246 required to run the 5.x binaries on more recent kernels. And so on 2247 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2248 2249 Make sure that you merge any new devices from GENERIC since the 2250 last time you updated your kernel config file. 2251 2252 [9] When checking out sources, you must include the -P flag to have 2253 cvs prune empty directories. 2254 2255 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2256 "?=" instead of the "=" assignment operator, so that buildworld can 2257 override the CPUTYPE if it needs to. 2258 2259 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2260 not on the command line, or in /etc/make.conf. buildworld will 2261 warn if it is improperly defined. 2262FORMAT: 2263 2264This file contains a list, in reverse chronological order, of major 2265breakages in tracking -current. It is not guaranteed to be a complete 2266list of such breakages, and only contains entries since October 10, 2007. 2267If you need to see UPDATING entries from before that date, you will need 2268to fetch an UPDATING file from an older FreeBSD release. 2269 2270Copyright information: 2271 2272Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2273 2274Redistribution, publication, translation and use, with or without 2275modification, in full or in part, in any form or format of this 2276document are permitted without further permission from the author. 2277 2278THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2279IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2280WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2281DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2282INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2283(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2284SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2285HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2286STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2287IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2288POSSIBILITY OF SUCH DAMAGE. 2289 2290Contact Warner Losh if you have any questions about your use of 2291this document. 2292 2293$FreeBSD: releng/10.1/UPDATING 287873 2015-09-16 21:00:21Z delphij $ 2294