UPDATING revision 288512
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 1920151002: p22 FreeBSD-SA-15:24.rpcbind [revised] 20 Revised patch to address a regression that prevents NIS from working. 21 2220150929: p21 FreeBSD-SA-15:24.rpcbind 23 24 Fix rpcbind(8) remote denial of service. [SA-15:24] 25 2620150916: p20 FreeBSD-EN-15:18.pkg 27 28 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 29 3020150825: p19 FreeBSD-SA-15:21.amd64 31 FreeBSD-SA-15:22.openssh 32 FreeBSD-EN-15:14.ixgbe 33 FreeBSD-EN-15:15.pkg 34 35 Fix local privilege escalation in IRET handler. [SA-15:21] 36 37 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 38 39 Disabled ixgbe(4) flow-director support. [EN-15:14] 40 41 Fix insufficient check of unsupported pkg(7) signature methods. 42 [EN-15:15] 43 4420150818: p18 FreeBSD-SA-15:20.expat 45 46 Fix multiple integer overflows in expat (libbsdxml) XML parser. 47 [SA-15:20] 48 4920150805: p17 FreeBSD-SA-15:18.bsdpatch 50 FreeBSD-SA-15:19.routed 51 52 Fix patch(1) shell injection vulnerability via ed(1). 53 [SA-15:18] 54 55 Fix routed remote denial of service vulnerability. [SA-15:19] 56 5720150728: p16 FreeBSD-SA-15:14.bsdpatch 58 FreeBSD-SA-15:15.tcp 59 FreeBSD-SA-15:16.openssh 60 61 Fix patch(1) shell injection vulnerability. [SA-15:14] 62 63 Fix resource exhaustion in TCP reassembly. [SA-15:15] 64 65 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 66 6720150721: p15 FreeBSD-SA-15:13.tcp 68 69 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 70 [SA-15:13] 71 7220150630: p14 FreeBSD-EN-15:08.sendmail [revised] 73 FreeBSD-EN-15:09.xlocale 74 FreeBSD-EN-15:10.iconv 75 76 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 77 78 Fix inconsistency between locale and rune locale states. 79 [EN-15:09] 80 81 Improved iconv(3) UTF-7 support. [EN-15:10] 82 8320150618: p13 FreeBSD-EN-15:08.sendmail 84 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 85 8620150612: p12 FreeBSD-SA-15:10.openssl 87 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 88 8920150609: p11 FreeBSD-EN-15:06.file 90 FreeBSD-EN-15:07.zfs 91 92 Updated base system file(1) to 5.22 to address multiple denial 93 of service issues. [EN-15:06] 94 95 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 96 [EN-15:07] 97 9820150513: p10 FreeBSD-EN-15:04.freebsd-update 99 FreeBSD-EN-15:05.ufs 100 101 Fix bug with freebsd-update(8) that does not ensure the previous 102 upgrade was completed. [EN-15:04] 103 104 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 105 10620150407: p9 FreeBSD-SA-15:04.igmp [revised] 107 FreeBSD-SA-15:07.ntp 108 FreeBSD-SA-15:08.bsdinstall 109 FreeBSD-SA-15:09.ipv6 110 111 Improved patch for SA-15:04.igmp. 112 113 Fix multiple vulnerabilities of ntp. [SA-15:07] 114 115 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 116 117 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 118 11920150320: p8 120 Fix patch for SA-15:06.openssl. 121 12220150319: p7 FreeBSD-SA-15:06.openssl 123 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 124 12520150225: p6 FreeBSD-SA-15:04.igmp 126 FreeBSD-EN-15:01.vt 127 FreeBSD-EN-15:02.openssl 128 FreeBSD-EN-15:03.freebsd-update 129 130 Fix integer overflow in IGMP protocol. [SA-15:04] 131 132 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 133 134 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 135 136 Fix freebsd-update libraries update ordering issue. [EN-15:03] 137 13820150127: p5 FreeBSD-SA-15:02.kmem 139 FreeBSD-SA-15:03.sctp 140 141 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 142 vulnerability. [SA-15:02] 143 144 Fix SCTP stream reset vulnerability. [SA-15:03] 145 14620150114: p4 FreeBSD-SA-15:01.openssl 147 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 148 14920141223: p3 FreeBSD-SA-14:31.ntp 150 FreeBSD-EN-14:13.freebsd-update 151 152 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 153 Fix directory deletion issue in freebsd-update. [EN-14:13] 154 15520141217: p2 FreeBSD-SA-14:30.unbound 156 Fix unbound remote denial of service vulnerability. 157 15820141210: p1 FreeBSD-SA-14:27.stdio 159 FreeBSD-SA-14:28.file 160 161 Fix buffer overflow in stdio. [SA-14:27] 162 163 Fix multiple vulnerabilities in file(1) and libmagic(3). 164 [SA-14:28] 165 16620140904: 167 The ofwfb driver, used to provide a graphics console on PowerPC when 168 using vt(4), no longer allows mmap() of all of physical memory. This 169 will prevent Xorg on PowerPC with some ATI graphics cards from 170 initializing properly unless x11-servers/xorg-server is updated to 171 1.12.4_8 or newer. 172 17320140831: 174 The libatf-c and libatf-c++ major versions were downgraded to 0 and 175 1 respectively to match the upstream numbers. They were out of 176 sync because, when they were originally added to FreeBSD, the 177 upstream versions were not respected. These libraries are private 178 and not yet built by default, so renumbering them should be a 179 non-issue. However, unclean source trees will yield broken test 180 programs once the operator executes "make delete-old-libs" after a 181 "make installworld". 182 183 Additionally, the atf-sh binary was made private by moving it into 184 /usr/libexec/. Already-built shell test programs will keep the 185 path to the old binary so they will break after "make delete-old" 186 is run. 187 188 If you are using WITH_TESTS=yes (not the default), wipe the object 189 tree and rebuild from scratch to prevent spurious test failures. 190 This is only needed once: the misnumbered libraries and misplaced 191 binaries have been added to OptionalObsoleteFiles.inc so they will 192 be removed during a clean upgrade. 193 19420140814: 195 The ixgbe tunables now match their sysctl counterparts, for example: 196 hw.ixgbe.enable_aim => hw.ix.enable_aim 197 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 198 19920140801: 200 The NFSv4.1 server committed by r269398 changes the internal 201 function call interfaces used between the NFS and krpc modules. 202 As such, __FreeBSD_version was bumped. 203 20420140729: 205 The default unbound configuration has been modified to address 206 issues with reverse lookups on networks that use private 207 address ranges. If you use the local_unbound service, run 208 "service local_unbound setup" as root to regenerate your 209 configuration, then "service local_unbound reload" to load the 210 new configuration. 211 21220140717: 213 It is no longer necessary to include the dwarf version in your DEBUG 214 options in your kernel config file. The bug that required it to be 215 placed in the config file has bene fixed. DEBUG should now just 216 contain -g. The build system will automatically update things 217 to do the right thing. 218 21920140715: 220 Several ABI breaking changes were merged to CTL and new iSCSI code. 221 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 222 iscsictl need to be rebuilt to work with a new kernel. 223 22420140708: 225 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 226 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 227 which differs from the behaviour controlled by this knob.) 228 22920140608: 230 On i386 and amd64 systems, the onifconsole flag is now set by default 231 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 232 as a login TTY if it is set in the bootloader as an active kernel 233 console. No changes in behavior should result otherwise. To revert to 234 the previous behavior, set ttyu0 to "off" in /etc/ttys. 235 23620140512: 237 Clang and llvm have been upgraded to 3.4.1 release. 238 23920140321: 240 Clang and llvm have been upgraded to 3.4 release. 241 24220140306: 243 If a Makefile in a tests/ directory was auto-generating a Kyuafile 244 instead of providing an explicit one, this would prevent such 245 Makefile from providing its own Kyuafile in the future during 246 NO_CLEAN builds. This has been fixed in the Makefiles but manual 247 intervention is needed to clean an objdir if you use NO_CLEAN: 248 # find /usr/obj -name Kyuafile | xargs rm -f 249 25020140303: 251 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 252 capability mode support. Please note that enabling the feature in 253 kernel is still highly recommended. 254 25520140227: 256 OpenSSH is now built with sandbox support, and will use sandbox as 257 the default privilege separation method. This requires Capsicum 258 capability mode support in kernel. 259 26020140216: 261 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 262 been deprecated and will not be part of FreeBSD 11.0 and later 263 releases. If you use this driver, please consider switching to 264 the nfe(4) driver instead. 265 26620140120: 267 10.0-RELEASE. 268 26920131216: 270 The behavior of gss_pseudo_random() for the krb5 mechanism 271 has changed, for applications requesting a longer random string 272 than produced by the underlying enctype's pseudo-random() function. 273 In particular, the random string produced from a session key of 274 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 275 be different at the 17th octet and later, after this change. 276 The counter used in the PRF+ construction is now encoded as a 277 big-endian integer in accordance with RFC 4402. 278 __FreeBSD_version is bumped to 1000701. 279 28020131108: 281 The WITHOUT_ATF build knob has been removed and its functionality 282 has been subsumed into the more generic WITHOUT_TESTS. If you were 283 using the former to disable the build of the ATF libraries, you 284 should change your settings to use the latter. 285 28620131031: 287 The default version of mtree is nmtree which is obtained from 288 NetBSD. The output is generally the same, but may vary 289 slightly. If you found you need identical output adding 290 "-F freebsd9" to the command line should do the trick. For the 291 time being, the old mtree is available as fmtree. 292 29320131014: 294 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 295 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 296 1.1.4_8 and verify bsdyml not linked in, before running "make 297 delete-old-libs": 298 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 299 or 300 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 301 30220131010: 303 The rc.d/jail script has been updated to support jail(8) 304 configuration file. The "jail_<jname>_*" rc.conf(5) variables 305 for per-jail configuration are automatically converted to 306 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 307 This is transparently backward compatible. See below about some 308 incompatibilities and rc.conf(5) manual page for more details. 309 310 These variables are now deprecated in favor of jail(8) configuration 311 file. One can use "rc.d/jail config <jname>" command to generate 312 a jail(8) configuration file in /var/run/jail.<jname>.conf without 313 running the jail(8) utility. The default pathname of the 314 configuration file is /etc/jail.conf and can be specified by 315 using $jail_conf or $jail_<jname>_conf variables. 316 317 Please note that jail_devfs_ruleset accepts an integer at 318 this moment. Please consider to rewrite the ruleset name 319 with an integer. 320 32120130930: 322 BIND has been removed from the base system. If all you need 323 is a local resolver, simply enable and start the local_unbound 324 service instead. Otherwise, several versions of BIND are 325 available in the ports tree. The dns/bind99 port is one example. 326 327 With this change, nslookup(1) and dig(1) are no longer in the base 328 system. Users should instead use host(1) and drill(1) which are 329 in the base system. Alternatively, nslookup and dig can 330 be obtained by installing the dns/bind-tools port. 331 33220130916: 333 With the addition of unbound(8), a new unbound user is now 334 required during installworld. "mergemaster -p" can be used to 335 add the user prior to installworld, as documented in the handbook. 336 33720130911: 338 OpenSSH is now built with DNSSEC support, and will by default 339 silently trust signed SSHFP records. This can be controlled with 340 the VerifyHostKeyDNS client configuration setting. DNSSEC support 341 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 342 34320130906: 344 The GNU Compiler Collection and C++ standard library (libstdc++) 345 are no longer built by default on platforms where clang is the system 346 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 347 options in src.conf. 348 34920130905: 350 The PROCDESC kernel option is now part of the GENERIC kernel 351 configuration and is required for the rwhod(8) to work. 352 If you are using custom kernel configuration, you should include 353 'options PROCDESC'. 354 35520130905: 356 The API and ABI related to the Capsicum framework was modified 357 in backward incompatible way. The userland libraries and programs 358 have to be recompiled to work with the new kernel. This includes the 359 following libraries and programs, but the whole buildworld is 360 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 361 kdump, procstat, rwho, rwhod, uniq. 362 36320130903: 364 AES-NI intrinsic support has been added to gcc. The AES-NI module 365 has been updated to use this support. A new gcc is required to build 366 the aesni module on both i386 and amd64. 367 36820130821: 369 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 370 Thus "device padlock_rng" and "device rdrand_rng" should be 371 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 372 37320130813: 374 WITH_ICONV has been split into two feature sets. WITH_ICONV now 375 enables just the iconv* functionality and is now on by default. 376 WITH_LIBICONV_COMPAT enables the libiconv api and link time 377 compatability. Set WITHOUT_ICONV to build the old way. 378 If you have been using WITH_ICONV before, you will very likely 379 need to turn on WITH_LIBICONV_COMPAT. 380 38120130806: 382 INVARIANTS option now enables DEBUG for code with OpenSolaris and 383 Illumos origin, including ZFS. If you have INVARIANTS in your 384 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 385 explicitly. 386 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 387 locks if WITNESS option was set. Because that generated a lot of 388 witness(9) reports and all of them were believed to be false 389 positives, this is no longer done. New option OPENSOLARIS_WITNESS 390 can be used to achieve the previous behavior. 391 39220130806: 393 Timer values in IPv6 data structures now use time_uptime instead 394 of time_second. Although this is not a user-visible functional 395 change, userland utilities which directly use them---ndp(8), 396 rtadvd(8), and rtsold(8) in the base system---need to be updated 397 to r253970 or later. 398 39920130802: 400 find -delete can now delete the pathnames given as arguments, 401 instead of only files found below them or if the pathname did 402 not contain any slashes. Formerly, the following error message 403 would result: 404 405 find: -delete: <path>: relative path potentially not safe 406 407 Deleting the pathnames given as arguments can be prevented 408 without error messages using -mindepth 1 or by changing 409 directory and passing "." as argument to find. This works in the 410 old as well as the new version of find. 411 41220130726: 413 Behavior of devfs rules path matching has been changed. 414 Pattern is now always matched against fully qualified devfs 415 path and slash characters must be explicitly matched by 416 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 417 subdirectories must be reviewed. 418 41920130716: 420 The default ARM ABI has changed to the ARM EABI. The old ABI is 421 incompatible with the ARM EABI and all programs and modules will 422 need to be rebuilt to work with a new kernel. 423 424 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 425 426 NOTE: Support for the old ABI will be removed in the future and 427 users are advised to upgrade. 428 42920130709: 430 pkg_install has been disconnected from the build if you really need it 431 you should add WITH_PKGTOOLS in your src.conf(5). 432 43320130709: 434 Most of network statistics structures were changed to be able 435 keep 64-bits counters. Thus all tools, that work with networking 436 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 437 43820130629: 439 Fix targets that run multiple make's to use && rather than ; 440 so that subsequent steps depend on success of previous. 441 442 NOTE: if building 'universe' with -j* on stable/8 or stable/9 443 it would be better to start the build using bmake, to avoid 444 overloading the machine. 445 44620130618: 447 Fix a bug that allowed a tracing process (e.g. gdb) to write 448 to a memory-mapped file in the traced process's address space 449 even if neither the traced process nor the tracing process had 450 write access to that file. 451 45220130615: 453 CVS has been removed from the base system. An exact copy 454 of the code is available from the devel/cvs port. 455 45620130613: 457 Some people report the following error after the switch to bmake: 458 459 make: illegal option -- J 460 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 461 ... 462 *** [buildworld] Error code 2 463 464 this likely due to an old instance of make in 465 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 466 which src/Makefile will use that blindly, if it exists, so if 467 you see the above error: 468 469 rm -rf `make -V MAKEPATH` 470 471 should resolve it. 472 47320130516: 474 Use bmake by default. 475 Whereas before one could choose to build with bmake via 476 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 477 make. The goal is to remove these knobs for 10-RELEASE. 478 479 It is worth noting that bmake (like gmake) treats the command 480 line as the unit of failure, rather than statements within the 481 command line. Thus '(cd some/where && dosomething)' is safer 482 than 'cd some/where; dosomething'. The '()' allows consistent 483 behavior in parallel build. 484 48520130429: 486 Fix a bug that allows NFS clients to issue READDIR on files. 487 48820130426: 489 The WITHOUT_IDEA option has been removed because 490 the IDEA patent expired. 491 49220130426: 493 The sysctl which controls TRIM support under ZFS has been renamed 494 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 495 enabled by default. 496 49720130425: 498 The mergemaster command now uses the default MAKEOBJDIRPREFIX 499 rather than creating it's own in the temporary directory in 500 order allow access to bootstrapped versions of tools such as 501 install and mtree. When upgrading from version of FreeBSD where 502 the install command does not support -l, you will need to 503 install a new mergemaster command if mergemaster -p is required. 504 This can be accomplished with the command (cd src/usr.sbin/mergemaster 505 && make install). 506 50720130404: 508 Legacy ATA stack, disabled and replaced by new CAM-based one since 509 FreeBSD 9.0, completely removed from the sources. Kernel modules 510 atadisk and atapi*, user-level tools atacontrol and burncd are 511 removed. Kernel option `options ATA_CAM` is now permanently enabled 512 and removed. 513 51420130319: 515 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 516 and socketpair(2). Software, in particular Kerberos, may 517 automatically detect and use these during building. The resulting 518 binaries will not work on older kernels. 519 52020130308: 521 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 522 information, see the respective 20130304 entry). 523 52420130304: 525 Recent commits to callout(9) changed the size of struct callout, 526 so the KBI is probably heavily disturbed. Also, some functions 527 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 528 by macros. Every kernel module using it won't load, so rebuild 529 is requested. 530 531 The ctl device has been re-enabled in GENERIC for i386 and amd64, 532 but does not initialize by default (because of the new CTL_DISABLE 533 option) to save memory. To re-enable it, remove the CTL_DISABLE 534 option from the kernel config file or set kern.cam.ctl.disable=0 535 in /boot/loader.conf. 536 53720130301: 538 The ctl device has been disabled in GENERIC for i386 and amd64. 539 This was done due to the extra memory being allocated at system 540 initialisation time by the ctl driver which was only used if 541 a CAM target device was created. This makes a FreeBSD system 542 unusable on 128MB or less of RAM. 543 54420130208: 545 A new compression method (lz4) has been merged to -HEAD. Please 546 refer to zpool-features(7) for more information. 547 548 Please refer to the "ZFS notes" section of this file for information 549 on upgrading boot ZFS pools. 550 55120130129: 552 A BSD-licensed patch(1) variant has been added and is installed 553 as bsdpatch, being the GNU version the default patch. 554 To inverse the logic and use the BSD-licensed one as default, 555 while having the GNU version installed as gnupatch, rebuild 556 and install world with the WITH_BSD_PATCH knob set. 557 55820130121: 559 Due to the use of the new -l option to install(1) during build 560 and install, you must take care not to directly set the INSTALL 561 make variable in your /etc/make.conf, /etc/src.conf, or on the 562 command line. If you wish to use the -C flag for all installs 563 you may be able to add INSTALL+=-C to /etc/make.conf or 564 /etc/src.conf. 565 56620130118: 567 The install(1) option -M has changed meaning and now takes an 568 argument that is a file or path to append logs to. In the 569 unlikely event that -M was the last option on the command line 570 and the command line contained at least two files and a target 571 directory the first file will have logs appended to it. The -M 572 option served little practical purpose in the last decade so its 573 use is expected to be extremely rare. 574 57520121223: 576 After switching to Clang as the default compiler some users of ZFS 577 on i386 systems started to experience stack overflow kernel panics. 578 Please consider using 'options KSTACK_PAGES=4' in such configurations. 579 58020121222: 581 GEOM_LABEL now mangles label names read from file system metadata. 582 Mangling affect labels containing spaces, non-printable characters, 583 '%' or '"'. Device names in /etc/fstab and other places may need to 584 be updated. 585 58620121217: 587 By default, only the 10 most recent kernel dumps will be saved. To 588 restore the previous behaviour (no limit on the number of kernel dumps 589 stored in the dump directory) add the following line to /etc/rc.conf: 590 591 savecore_flags="" 592 59320121201: 594 With the addition of auditdistd(8), a new auditdistd user is now 595 required during installworld. "mergemaster -p" can be used to 596 add the user prior to installworld, as documented in the handbook. 597 59820121117: 599 The sin6_scope_id member variable in struct sockaddr_in6 is now 600 filled by the kernel before passing the structure to the userland via 601 sysctl or routing socket. This means the KAME-specific embedded scope 602 id in sin6_addr.s6_addr[2] is always cleared in userland application. 603 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 604 __FreeBSD_version is bumped to 1000025. 605 60620121105: 607 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 608 This means that the world and kernel will be compiled with clang 609 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 610 and /usr/bin/cpp. To disable this behavior and revert to building 611 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 612 of current may need to bootstrap WITHOUT_CLANG first if the clang 613 build fails (its compatibility window doesn't extend to the 9 stable 614 branch point). 615 61620121102: 617 The IPFIREWALL_FORWARD kernel option has been removed. Its 618 functionality now turned on by default. 619 62020121023: 621 The ZERO_COPY_SOCKET kernel option has been removed and 622 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 623 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 624 mechanism which is not safe and may result in kernel crashes. 625 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 626 driver supports disposeable external page sized mbuf storage. 627 Proper replacements for both zero-copy mechanisms are under 628 consideration and will eventually lead to complete removal 629 of the two kernel options. 630 63120121023: 632 The IPv4 network stack has been converted to network byte 633 order. The following modules need to be recompiled together 634 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 635 pf(4), ipfw(4), ng_ipfw(4), stf(4). 636 63720121022: 638 Support for non-MPSAFE filesystems was removed from VFS. The 639 VFS_VERSION was bumped, all filesystem modules shall be 640 recompiled. 641 64220121018: 643 All the non-MPSAFE filesystems have been disconnected from 644 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 645 portalfs, smbfs, xfs. 646 64720121016: 648 The interface cloning API and ABI has changed. The following 649 modules need to be recompiled together with kernel: 650 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 651 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 652 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 653 65420121015: 655 The sdhci driver was split in two parts: sdhci (generic SD Host 656 Controller logic) and sdhci_pci (actual hardware driver). 657 No kernel config modifications are required, but if you 658 load sdhc as a module you must switch to sdhci_pci instead. 659 66020121014: 661 Import the FUSE kernel and userland support into base system. 662 66320121013: 664 The GNU sort(1) program has been removed since the BSD-licensed 665 sort(1) has been the default for quite some time and no serious 666 problems have been reported. The corresponding WITH_GNU_SORT 667 knob has also gone. 668 66920121006: 670 The pfil(9) API/ABI for AF_INET family has been changed. Packet 671 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 672 with new kernel. 673 67420121001: 675 The net80211(4) ABI has been changed to allow for improved driver 676 PS-POLL and power-save support. All wireless drivers need to be 677 recompiled to work with the new kernel. 678 67920120913: 680 The random(4) support for the VIA hardware random number 681 generator (`PADLOCK') is no longer enabled unconditionally. 682 Add the padlock_rng device in the custom kernel config if 683 needed. The GENERIC kernels on i386 and amd64 do include the 684 device, so the change only affects the custom kernel 685 configurations. 686 68720120908: 688 The pf(4) packet filter ABI has been changed. pfctl(8) and 689 snmp_pf module need to be recompiled to work with new kernel. 690 69120120828: 692 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 693 to -HEAD. Pools that have empty_bpobj in active state can not be 694 imported read-write with ZFS implementations that do not support 695 this feature. For more information read the zpool-features(5) 696 manual page. 697 69820120727: 699 The sparc64 ZFS loader has been changed to no longer try to auto- 700 detect ZFS providers based on diskN aliases but now requires these 701 to be explicitly listed in the OFW boot-device environment variable. 702 70320120712: 704 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 705 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 706 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 707 70820120712: 709 The following sysctls and tunables have been renamed for consistency 710 with other variables: 711 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 712 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 713 71420120628: 715 The sort utility has been replaced with BSD sort. For now, GNU sort 716 is also available as "gnusort" or the default can be set back to 717 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 718 installed as "bsdsort". 719 72020120611: 721 A new version of ZFS (pool version 5000) has been merged to -HEAD. 722 Starting with this version the old system of ZFS pool versioning 723 is superseded by "feature flags". This concept enables forward 724 compatibility against certain future changes in functionality of ZFS 725 pools. The first read-only compatible "feature flag" for ZFS pools 726 is named "com.delphix:async_destroy". For more information 727 read the new zpool-features(5) manual page. 728 Please refer to the "ZFS notes" section of this file for information 729 on upgrading boot ZFS pools. 730 73120120417: 732 The malloc(3) implementation embedded in libc now uses sources imported 733 as contrib/jemalloc. The most disruptive API change is to 734 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 735 delete it prior to installworld, and optionally re-create it using the 736 new format after rebooting. See malloc.conf(5) for details 737 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 738 NAMESPACE section). 739 74020120328: 741 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 742 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 743 now spelled mips. This is to aid compatibility with third-party 744 software that expects this naming scheme in uname(3). Little-endian 745 settings are unchanged. If you are updating a big-endian mips64 machine 746 from before this change, you may need to set MACHINE_ARCH=mips64 in 747 your environment before the new build system will recognize your machine. 748 74920120306: 750 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 751 platforms. 752 75320120229: 754 Now unix domain sockets behave "as expected" on nullfs(5). Previously 755 nullfs(5) did not pass through all behaviours to the underlying layer, 756 as a result if we bound to a socket on the lower layer we could connect 757 only to the lower path; if we bound to the upper layer we could connect 758 only to the upper path. The new behavior is one can connect to both the 759 lower and the upper paths regardless what layer path one binds to. 760 76120120211: 762 The getifaddrs upgrade path broken with 20111215 has been restored. 763 If you have upgraded in between 20111215 and 20120209 you need to 764 recompile libc again with your kernel. You still need to recompile 765 world to be able to configure CARP but this restriction already 766 comes from 20111215. 767 76820120114: 769 The set_rcvar() function has been removed from /etc/rc.subr. All 770 base and ports rc.d scripts have been updated, so if you have a 771 port installed with a script in /usr/local/etc/rc.d you can either 772 hand-edit the rcvar= line, or reinstall the port. 773 774 An easy way to handle the mass-update of /etc/rc.d: 775 rm /etc/rc.d/* && mergemaster -i 776 77720120109: 778 panic(9) now stops other CPUs in the SMP systems, disables interrupts 779 on the current CPU and prevents other threads from running. 780 This behavior can be reverted using the kern.stop_scheduler_on_panic 781 tunable/sysctl. 782 The new behavior can be incompatible with kern.sync_on_panic. 783 78420111215: 785 The carp(4) facility has been changed significantly. Configuration 786 of the CARP protocol via ifconfig(8) has changed, as well as format 787 of CARP events submitted to devd(8) has changed. See manual pages 788 for more information. The arpbalance feature of carp(4) is currently 789 not supported anymore. 790 791 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 792 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 793 need to be recompiled. 794 79520111122: 796 The acpi_wmi(4) status device /dev/wmistat has been renamed to 797 /dev/wmistat0. 798 79920111108: 800 The option VFS_ALLOW_NONMPSAFE option has been added in order to 801 explicitely support non-MPSAFE filesystems. 802 It is on by default for all supported platform at this present 803 time. 804 80520111101: 806 The broken amd(4) driver has been replaced with esp(4) in the amd64, 807 i386 and pc98 GENERIC kernel configuration files. 808 80920110930: 810 sysinstall has been removed 811 81220110923: 813 The stable/9 branch created in subversion. This corresponds to the 814 RELENG_9 branch in CVS. 815 81620110913: 817 This commit modifies vfs_register() so that it uses a hash 818 calculation to set vfc_typenum, which is enabled by default. 819 The first time a system is booted after this change, the 820 vfc_typenum values will change for all file systems. The 821 main effect of this is a change to the NFS server file handles 822 for file systems that use vfc_typenum in their fsid, such as ZFS. 823 It will, however, prevent vfc_typenum from changing when file 824 systems are loaded in a different order for subsequent reboots. 825 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 826 until you are ready to remount all NFS clients after a reboot. 827 82820110828: 829 Bump the shared library version numbers for libraries that 830 do not use symbol versioning, have changed the ABI compared 831 to stable/8 and which shared library version was not bumped. 832 Done as part of 9.0-RELEASE cycle. 833 83420110815: 835 During the merge of Capsicum features, the fget(9) KPI was modified. 836 This may require the rebuilding of out-of-tree device drivers -- 837 issues have been reported specifically with the nVidia device driver. 838 __FreeBSD_version is bumped to 900041. 839 840 Also, there is a period between 20110811 and 20110814 where the 841 special devices /dev/{stdin,stdout,stderr} did not work correctly. 842 Building world from a kernel during that window may not work. 843 84420110628: 845 The packet filter (pf) code has been updated to OpenBSD 4.5. 846 You need to update userland tools to be in sync with kernel. 847 This update breaks backward compatibility with earlier pfsync(4) 848 versions. Care must be taken when updating redundant firewall setups. 849 85020110608: 851 The following sysctls and tunables are retired on x86 platforms: 852 machdep.hlt_cpus 853 machdep.hlt_logical_cpus 854 The following sysctl is retired: 855 machdep.hyperthreading_allowed 856 The sysctls were supposed to provide a way to dynamically offline and 857 online selected CPUs on x86 platforms, but the implementation has not 858 been reliable especially with SCHED_ULE scheduler. 859 machdep.hyperthreading_allowed tunable is still available to ignore 860 hyperthreading CPUs at OS level. 861 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 862 where X is an APIC ID of a CPU. Be advised, though, that disabling 863 CPUs in non-uniform fashion will result in non-uniform topology and 864 may lead to sub-optimal system performance with SCHED_ULE, which is 865 a default scheduler. 866 86720110607: 868 cpumask_t type is retired and cpuset_t is used in order to describe 869 a mask of CPUs. 870 87120110531: 872 Changes to ifconfig(8) for dynamic address family detection mandate 873 that you are running a kernel of 20110525 or later. Make sure to 874 follow the update procedure to boot a new kernel before installing 875 world. 876 87720110513: 878 Support for sun4v architecture is officially dropped 879 88020110503: 881 Several KPI breaking changes have been committed to the mii(4) layer, 882 the PHY drivers and consequently some Ethernet drivers using mii(4). 883 This means that miibus.ko and the modules of the affected Ethernet 884 drivers need to be recompiled. 885 886 Note to kernel developers: Given that the OUI bit reversion problem 887 was fixed as part of these changes all mii(4) commits related to OUIs, 888 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 889 handling, no longer can be merged verbatim to stable/8 and previous 890 branches. 891 89220110430: 893 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 894 into their kernel configurations along with 'device pci'. 895 89620110427: 897 The default NFS client is now the new NFS client, so fstype "newnfs" 898 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 899 Although mounts via fstype "nfs" will usually work without userland 900 changes, it is recommended that the mount(8) and mount_nfs(8) 901 commands be rebuilt from sources and that a link to mount_nfs called 902 mount_oldnfs be created. The new client is compiled into the 903 kernel with "options NFSCL" and this is needed for diskless root 904 file systems. The GENERIC kernel configs have been changed to use 905 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 906 To use the regular/old client, you can "mount -t oldnfs ...". For 907 a diskless root file system, you must also include a line like: 908 909 vfs.root.mountfrom="oldnfs:" 910 911 in the boot/loader.conf on the root fs on the NFS server to make 912 a diskless root fs use the old client. 913 91420110424: 915 The GENERIC kernels for all architectures now default to the new 916 CAM-based ATA stack. It means that all legacy ATA drivers were 917 removed and replaced by respective CAM drivers. If you are using 918 ATA device names in /etc/fstab or other places, make sure to update 919 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 920 where 'Y's are the sequential numbers starting from zero for each type 921 in order of detection, unless configured otherwise with tunables, 922 see cam(4)). There will be symbolic links created in /dev/ to map 923 old adX devices to the respective adaY. They should provide basic 924 compatibility for file systems mounting in most cases, but they do 925 not support old user-level APIs and do not have respective providers 926 in GEOM. Consider using updated management tools with new device names. 927 928 It is possible to load devices ahci, ata, siis and mvs as modules, 929 but option ATA_CAM should remain in kernel configuration to make ata 930 module work as CAM driver supporting legacy ATA controllers. Device ata 931 still can be used in modular fashion (atacore + ...). Modules atadisk 932 and atapi* are not used and won't affect operation in ATA_CAM mode. 933 Note that to use CAM-based ATA kernel should include CAM devices 934 scbus, pass, da (or explicitly ada), cd and optionally others. All of 935 them are parts of the cam module. 936 937 ataraid(4) functionality is now supported by the RAID GEOM class. 938 To use it you can load geom_raid kernel module and use graid(8) tool 939 for management. Instead of /dev/arX device names, use /dev/raid/rX. 940 941 No kernel config options or code have been removed, so if a problem 942 arises, please report it and optionally revert to the old ATA stack. 943 In order to do it you can remove from the kernel config: 944 options ATA_CAM 945 device ahci 946 device mvs 947 device siis 948 , and instead add back: 949 device atadisk # ATA disk drives 950 device ataraid # ATA RAID drives 951 device atapicd # ATAPI CDROM drives 952 device atapifd # ATAPI floppy drives 953 device atapist # ATAPI tape drives 954 95520110423: 956 The default NFS server has been changed to the new server, which 957 was referred to as the experimental server. If you need to switch 958 back to the old NFS server, you must now put the "-o" option on 959 both the mountd and nfsd commands. This can be done using the 960 mountd_flags and nfs_server_flags rc.conf variables until an 961 update to the rc scripts is committed, which is coming soon. 962 96320110418: 964 The GNU Objective-C runtime library (libobjc), and other Objective-C 965 related components have been removed from the base system. If you 966 require an Objective-C library, please use one of the available ports. 967 96820110331: 969 ath(4) has been split into bus- and device- modules. if_ath contains 970 the HAL, the TX rate control and the network device code. if_ath_pci 971 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 972 contains the AHB glue. Users need to load both if_ath_pci and if_ath 973 in order to use ath on everything else. 974 975 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 976 need to load if_ath and if_ath_pci for ath(4) operation. 977 97820110314: 979 As part of the replacement of sysinstall, the process of building 980 release media has changed significantly. For details, please re-read 981 release(7), which has been updated to reflect the new build process. 982 98320110218: 984 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 985 is the last available version under GPLv2. It brings a number of new 986 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 987 4.1 and SSE 4.2), better support for powerpc64, a number of new 988 directives, and lots of other small improvements. See the ChangeLog 989 file in contrib/binutils for the full details. 990 99120110218: 992 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 993 compliant, and will now use half of hash for authentication. 994 This will break interoperability with all stacks (including all 995 actual FreeBSD versions) who implement 996 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 997 authentication). 998 The only workaround with such peers is to use another HMAC 999 algorithm for IPsec ("phase 2") authentication. 1000 100120110207: 1002 Remove the uio_yield prototype and symbol. This function has 1003 been misnamed since it was introduced and should not be 1004 globally exposed with this name. The equivalent functionality 1005 is now available using kern_yield(curthread->td_user_pri). 1006 The function remains undocumented. 1007 100820110112: 1009 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1010 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1011 for scalar sysctls is defined but disabled. Code that needs 1012 UQUAD to pass the type checking that must compile on older 1013 systems where the define is not present can check against 1014 __FreeBSD_version >= 900030. 1015 1016 The system dialog(1) has been replaced with a new version previously 1017 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1018 with the previous version, but the libdialog associated with it has 1019 a largely incompatible API. As such, the original version of libdialog 1020 will be kept temporarily as libodialog, until its base system consumers 1021 are replaced or updated. Bump __FreeBSD_version to 900030. 1022 102320110103: 1024 If you are trying to run make universe on a -stable system, and you get 1025 the following warning: 1026 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1027 unknown. config(8) likely too old." 1028 or something similar to it, then you must upgrade your -stable system 1029 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1030 stable/8) or build the config from the latest stable/8 branch and 1031 install it on your system. 1032 1033 Prior to this date, building a current universe on 8-stable system from 1034 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1035 error in the first kernel build phase. A new config on those old 1036 systems will fix that problem for older versions of -current. 1037 103820101228: 1039 The TCP stack has been modified to allow Khelp modules to interact with 1040 it via helper hook points and store per-connection data in the TCP 1041 control block. Bump __FreeBSD_version to 900029. User space tools that 1042 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1043 be recompiled. 1044 104520101114: 1046 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1047 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1048 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1049 to take advantage of it instead of using custom implementations. This 1050 means that these drivers now no longer unconditionally advertise 1051 support for flow control but only do so if flow control is a selected 1052 media option. This was implemented in the generic support that way in 1053 order to allow flow control to be switched on and off via ifconfig(8) 1054 with the PHY specific default to typically off in order to protect 1055 from unwanted effects. Consequently, if you used flow control with 1056 one of the above mentioned drivers you now need to explicitly enable 1057 it, for example via: 1058 ifconfig bge0 media auto mediaopt flowcontrol 1059 1060 Along with the above mentioned changes generic support for setting 1061 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1062 e1000phy(4) as well as ip1000phy(4) have been converted to take 1063 advantage of it. This means that these drivers now no longer take the 1064 link0 parameter for selecting master mode but the master media option 1065 has to be used instead, for example like in the following: 1066 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1067 1068 Selection of master mode now is also available with all other PHY 1069 drivers supporting 1000baseT. 1070 107120101111: 1072 The TCP stack has received a significant update to add support for 1073 modularised congestion control and generally improve the clarity of 1074 congestion control decisions. Bump __FreeBSD_version to 900025. User 1075 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1076 sockstat) need to be recompiled. 1077 107820101002: 1079 The man(1) utility has been replaced by a new version that no longer 1080 uses /etc/manpath.config. Please consult man.conf(5) for how to 1081 migrate local entries to the new format. 1082 108320100928: 1084 The copyright strings printed by login(1) and sshd(8) at the time of a 1085 new connection have been removed to follow other operating systems and 1086 upstream sshd. 1087 108820100915: 1089 A workaround for a fixed ld bug has been removed in kernel code, 1090 so make sure that your system ld is built from sources after 1091 revision 210245 from 2010-07-19 (r211583 if building head kernel 1092 on stable/8, r211584 for stable/7; both from 2010-08-21). 1093 A symptom of incorrect ld version is different addresses for 1094 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1095 109620100913: 1097 The $ipv6_prefer variable in rc.conf(5) has been split into 1098 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1099 1100 The $ip6addrctl_policy is a variable to choose a pre-defined 1101 address selection policy set by ip6addrctl(8). A value 1102 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1103 default is "AUTO". 1104 1105 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1106 flag (see an entry of 20090926) is set on an interface with no 1107 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1108 security reason. If you want IPv6 link-local address on all 1109 interfaces by default, set this to "YES". 1110 1111 The old ipv6_prefer="YES" is equivalent to 1112 ipv6_activate_all_interfaces="YES" and 1113 ip6addrctl_policy="ipv6_prefer". 1114 111520100913: 1116 DTrace has grown support for userland tracing. Due to this, DTrace is 1117 now i386 and amd64 only. 1118 dtruss(1) is now installed by default on those systems and a new 1119 kernel module is needed for userland tracing: fasttrap. 1120 No changes to your kernel config file are necessary to enable 1121 userland tracing, but you might consider adding 'STRIP=' and 1122 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1123 to have informative userland stack traces in DTrace (ustack). 1124 112520100725: 1126 The acpi_aiboost(4) driver has been removed in favor of the new 1127 aibs(4) driver. You should update your kernel configuration file. 1128 112920100722: 1130 BSD grep has been imported to the base system and it is built by 1131 default. It is completely BSD licensed, highly GNU-compatible, uses 1132 less memory than its GNU counterpart and has a small codebase. 1133 However, it is slower than its GNU counterpart, which is mostly 1134 noticeable for larger searches, for smaller ones it is measurable 1135 but not significant. The reason is complex, the most important factor 1136 is that we lack a modern and efficient regex library and GNU 1137 overcomes this by optimizing the searches internally. Future work 1138 on improving the regex performance is planned, for the meantime, 1139 users that need better performance, can build GNU grep instead by 1140 setting the WITH_GNU_GREP knob. 1141 114220100713: 1143 Due to the import of powerpc64 support, all existing powerpc kernel 1144 configuration files must be updated with a machine directive like this: 1145 machine powerpc powerpc 1146 1147 In addition, an updated config(8) is required to build powerpc kernels 1148 after this change. 1149 115020100713: 1151 A new version of ZFS (version 15) has been merged to -HEAD. 1152 This version uses a python library for the following subcommands: 1153 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1154 For full functionality of these commands the following port must 1155 be installed: sysutils/py-zfs 1156 115720100429: 1158 'vm_page's are now hashed by physical address to an array of mutexes. 1159 Currently this is only used to serialize access to hold_count. Over 1160 time the page queue mutex will be peeled away. This changes the size 1161 of pmap on every architecture. And requires all callers of vm_page_hold 1162 and vm_page_unhold to be updated. 1163 116420100402: 1165 WITH_CTF can now be specified in src.conf (not recommended, there 1166 are some problems with static executables), make.conf (would also 1167 affect ports which do not use GNU make and do not override the 1168 compile targets) or in the kernel config (via "makeoptions 1169 WITH_CTF=yes"). 1170 When WITH_CTF was specified there before this was silently ignored, 1171 so make sure that WITH_CTF is not used in places which could lead 1172 to unwanted behavior. 1173 117420100311: 1175 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1176 to allow 32-bit compatibility on non-x86 platforms. All kernel 1177 configurations on amd64 and ia64 platforms using these options must 1178 be modified accordingly. 1179 118020100113: 1181 The utmp user accounting database has been replaced with utmpx, 1182 the user accounting interface standardized by POSIX. 1183 Unfortunately the semantics of utmp and utmpx don't match, 1184 making it practically impossible to support both interfaces. 1185 The user accounting database is used by tools like finger(1), 1186 last(1), talk(1), w(1) and ac(8). 1187 1188 All applications in the base system use utmpx. This means only 1189 local binaries (e.g. from the ports tree) may still use these 1190 utmp database files. These applications must be rebuilt to make 1191 use of utmpx. 1192 1193 After the system has been upgraded, it is safe to remove the old 1194 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1195 assuming their contents is of no importance anymore. Old wtmp 1196 databases can only be used by last(1) and ac(8) after they have 1197 been converted to the new format using wtmpcvt(1). 1198 119920100108: 1200 Introduce the kernel thread "deadlock resolver" (which can be enabled 1201 via the DEADLKRES option, see NOTES for more details) and the 1202 sleepq_type() function for sleepqueues. 1203 120420091202: 1205 The rc.firewall and rc.firewall6 were unified, and 1206 rc.firewall6 and rc.d/ip6fw were removed. 1207 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1208 variables are obsoleted. Instead, the following new rc 1209 variables are added to rc.d/ipfw: 1210 1211 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1212 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1213 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1214 1215 The meanings correspond to the relevant IPv4 variables. 1216 121720091125: 1218 8.0-RELEASE. 1219 122020091113: 1221 The default terminal emulation for syscons(4) has been changed 1222 from cons25 to xterm on all platforms except pc98. This means 1223 that the /etc/ttys file needs to be updated to ensure correct 1224 operation of applications on the console. 1225 1226 The terminal emulation style can be toggled per window by using 1227 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1228 options can be used to change the compile-time default back to 1229 cons25. 1230 1231 To prevent graphical artifacts, make sure the TERM environment 1232 variable is set to match the terminal emulation that is being 1233 performed by syscons(4). 1234 123520091109: 1236 The layout of the structure ieee80211req_scan_result has changed. 1237 Applications that require wireless scan results (e.g. ifconfig(8)) 1238 from net80211 need to be recompiled. 1239 1240 Applications such as wpa_supplicant(8) may require a full world 1241 build without using NO_CLEAN in order to get synchronized with the 1242 new structure. 1243 124420091025: 1245 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1246 There's one kernel module for each firmware. Adding "device iwnfw" 1247 to the kernel configuration file means including all three firmware 1248 images inside the kernel. If you want to include just the one for 1249 your wireless card, use the devices iwn4965fw, iwn5000fw or 1250 iwn5150fw. 1251 125220090926: 1253 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1254 into rc.d/netif. The changes are the following: 1255 1256 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1257 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1258 Note that both variables need the "inet6" keyword at the head. 1259 1260 Do not set $ipv6_network_interfaces manually if you do not 1261 understand what you are doing. It is not needed in most cases. 1262 1263 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1264 they are obsolete. 1265 1266 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1267 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1268 1269 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1270 all configured interfaces have "inet6 accept_rtadv" in the 1271 $ifconfig_IF_ipv6. These are for backward compatibility. 1272 1273 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1274 functionality of interfaces with no corresponding 1275 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1276 and the default address selection policy of ip6addrctl(8) 1277 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1278 Note that if you want to configure IPv6 functionality on the 1279 disabled interfaces after boot, first you need to clear the flag by 1280 using ifconfig(8) like: 1281 1282 ifconfig em0 inet6 -ifdisabled 1283 1284 If YES, the default address selection policy is set as 1285 IPv6-preferred. 1286 1287 The default value of $ipv6_prefer is NO. 1288 1289 4. If your system need to receive Router Advertisement messages, 1290 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1291 scripts automatically invoke rtsol(8) when the interface becomes 1292 UP. The Router Advertisement messages are used for SLAAC 1293 (State-Less Address AutoConfiguration). 1294 129520090922: 1296 802.11s D3.03 support was committed. This is incompatible with the 1297 previous code, which was based on D3.0. 1298 129920090912: 1300 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1301 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1302 control whether accepting Router Advertisement messages or not. 1303 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1304 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1305 The ifconfig(8) utility now supports these flags. 1306 130720090910: 1308 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1309 mount(8) and -a option for df(1) to see them. 1310 131120090825: 1312 The old tunable hw.bus.devctl_disable has been superseded by 1313 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1314 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1315 is 1000. 1316 131720090813: 1318 Remove the option STOP_NMI. The default action is now to use NMI only 1319 for KDB via the newly introduced function stop_cpus_hard() and 1320 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1321 132220090803: 1323 The stable/8 branch created in subversion. This corresponds to the 1324 RELENG_8 branch in CVS. 1325 132620090719: 1327 Bump the shared library version numbers for all libraries that do not 1328 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1329 __FreeBSD_version to 800105. 1330 133120090714: 1332 Due to changes in the implementation of virtual network stack support, 1333 all network-related kernel modules must be recompiled. As this change 1334 breaks the ABI, bump __FreeBSD_version to 800104. 1335 133620090713: 1337 The TOE interface to the TCP syncache has been modified to remove 1338 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1339 The cxgb driver is the only TOE consumer affected by this change, and 1340 needs to be recompiled along with the kernel. As this change breaks 1341 the ABI, bump __FreeBSD_version to 800103. 1342 134320090712: 1344 Padding has been added to struct tcpcb, sackhint and tcpstat in 1345 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1346 maintaining the ABI. However, this change breaks the ABI, so bump 1347 __FreeBSD_version to 800102. User space tools that rely on the size of 1348 any of these structs (e.g. sockstat) need to be recompiled. 1349 135020090630: 1351 The NFS_LEGACYRPC option has been removed along with the old kernel 1352 RPC implementation that this option selected. Kernel configurations 1353 may need to be adjusted. 1354 135520090629: 1356 The network interface device nodes at /dev/net/<interface> have been 1357 removed. All ioctl operations can be performed the normal way using 1358 routing sockets. The kqueue functionality can generally be replaced 1359 with routing sockets. 1360 136120090628: 1362 The documentation from the FreeBSD Documentation Project (Handbook, 1363 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1364 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1365 136620090624: 1367 The ABI of various structures related to the SYSV IPC API have been 1368 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1369 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1370 800100. 1371 137220090622: 1373 Layout of struct vnet has changed as routing related variables were 1374 moved to their own Vimage module. Modules need to be recompiled. Bump 1375 __FreeBSD_version to 800099. 1376 137720090619: 1378 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1379 respectively. As long as no more than 16 groups per process are used, 1380 no changes should be visible. When more than 16 groups are used, old 1381 binaries may fail if they call getgroups() or getgrouplist() with 1382 statically sized storage. Recompiling will work around this, but 1383 applications should be modified to use dynamically allocated storage 1384 for group arrays as POSIX.1-2008 does not cap an implementation's 1385 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1386 1387 NFS and portalfs mounts may also be affected as the list of groups is 1388 truncated to 16. Users of NFS who use more than 16 groups, should 1389 take care that negative group permissions are not used on the exported 1390 file systems as they will not be reliable unless a GSSAPI based 1391 authentication method is used. 1392 139320090616: 1394 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1395 option compiles in the support for adaptive spinning for lockmgrs 1396 which want to enable it. The lockinit() function now accepts the flag 1397 LK_ADAPTIVE in order to make the lock object subject to adaptive 1398 spinning when both held in write and read mode. 1399 140020090613: 1401 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1402 changed. User applications that use this ioctl need to be rebuilt. 1403 140420090611: 1405 The layout of struct thread has changed. Kernel and modules need to 1406 be rebuilt. 1407 140820090608: 1409 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1410 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1411 141220090602: 1413 window(1) has been removed from the base system. It can now be 1414 installed from ports. The port is called misc/window. 1415 141620090601: 1417 The way we are storing and accessing `routing table' entries has 1418 changed. Programs reading the FIB, like netstat, need to be 1419 re-compiled. 1420 142120090601: 1422 A new netisr implementation has been added for FreeBSD 8. Network 1423 file system modules, such as igmp, ipdivert, and others, should be 1424 rebuilt. 1425 Bump __FreeBSD_version to 800096. 1426 142720090530: 1428 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1429 more valid. 1430 143120090530: 1432 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1433 Bump __FreeBSD_version to 800094. 1434 143520090529: 1436 Add mnt_xflag field to 'struct mount'. File system modules need to be 1437 rebuilt. 1438 Bump __FreeBSD_version to 800093. 1439 144020090528: 1441 The compiling option ADAPTIVE_SX has been retired while it has been 1442 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1443 The KPI for sx_init_flags() changes as accepting flags: 1444 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1445 been introduced in order to handle the reversed logic. 1446 Bump __FreeBSD_version to 800092. 1447 144820090527: 1449 Add support for hierarchical jails. Remove global securelevel. 1450 Bump __FreeBSD_version to 800091. 1451 145220090523: 1453 The layout of struct vnet_net has changed, therefore modules 1454 need to be rebuilt. 1455 Bump __FreeBSD_version to 800090. 1456 145720090523: 1458 The newly imported zic(8) produces a new format in the output. Please 1459 run tzsetup(8) to install the newly created data to /etc/localtime. 1460 146120090520: 1462 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1463 hw.usb.* and is now consistent again with previous releases. 1464 146520090520: 1466 802.11 monitor mode support was revised and driver api's were changed. 1467 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1468 of DLT_IEEE802_11. No user-visible data structures were changed but 1469 applications that use DLT_IEEE802_11 may require changes. 1470 Bump __FreeBSD_version to 800088. 1471 147220090430: 1473 The layout of the following structs has changed: sysctl_oid, 1474 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1475 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1476 panics may be experienced. World rebuild is required for 1477 correctly checking networking state from userland. 1478 Bump __FreeBSD_version to 800085. 1479 148020090429: 1481 MLDv2 and Source-Specific Multicast (SSM) have been merged 1482 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1483 The implementation of SSM within FreeBSD's IPv6 stack closely 1484 follows the IPv4 implementation. 1485 1486 For kernel developers: 1487 1488 * The most important changes are that the ip6_output() and 1489 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1490 and this lock has been downgraded to a non-recursive mutex. 1491 1492 * As with the changes to the IPv4 stack to support SSM, filtering 1493 of inbound multicast traffic must now be performed by transport 1494 protocols within the IPv6 stack. This does not apply to TCP and 1495 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1496 1497 * The KPIs used by IPv6 multicast are similar to those used by 1498 the IPv4 stack, with the following differences: 1499 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1500 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1501 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1502 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1503 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1504 for MLDv1 have an additional 'timer' argument which is used to 1505 jitter the initial membership report for the solicited-node 1506 multicast membership on-link. 1507 * This is not strictly needed for MLDv2, which already jitters 1508 its report transmissions. However, the 'timer' argument is 1509 preserved in case MLDv1 is active on the interface. 1510 1511 * The KAME linked-list based IPv6 membership implementation has 1512 been refactored to use a vector similar to that used by the IPv4 1513 stack. 1514 Code which maintains a list of its own multicast memberships 1515 internally, e.g. carp, has been updated to reflect the new 1516 semantics. 1517 1518 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1519 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1520 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1521 implementation constraint which needs to be addressed in HEAD. 1522 1523 For application developers: 1524 1525 * The changes are broadly similar to those made for the IPv4 1526 stack. 1527 1528 * The use of IPv4 and IPv6 multicast socket options on the same 1529 socket, using mapped addresses, HAS NOT been tested or supported. 1530 1531 * There are a number of issues with the implementation of various 1532 IPv6 multicast APIs which need to be resolved in the API surface 1533 before the implementation is fully compatible with KAME userland 1534 use, and these are mostly to do with interface index treatment. 1535 1536 * The literature available discusses the use of either the delta / ASM 1537 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1538 using setsourcefilter(3)/getsourcefilter(3). For more information 1539 please refer to RFC 3768, 'Socket Interface Extensions for 1540 Multicast Source Filters'. 1541 1542 * Applications which use the published RFC 3678 APIs should be fine. 1543 1544 For systems administrators: 1545 1546 * The mtest(8) utility has been refactored to support IPv6, in 1547 addition to IPv4. Interface addresses are no longer accepted 1548 as arguments, their names must be used instead. The utility 1549 will map the interface name to its first IPv4 address as 1550 returned by getifaddrs(3). 1551 1552 * The ifmcstat(8) utility has also been updated to print the MLDv2 1553 endpoint state and source filter lists via sysctl(3). 1554 1555 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1556 loopback of IPv6 multicast datagrams by default; it defaults to 1 1557 to preserve the existing behaviour. Disabling multicast loopback is 1558 recommended for optimal system performance. 1559 1560 * The IPv6 MROUTING code has been changed to examine this sysctl 1561 instead of attempting to perform a group lookup before looping 1562 back forwarded datagrams. 1563 1564 Bump __FreeBSD_version to 800084. 1565 156620090422: 1567 Implement low-level Bluetooth HCI API. 1568 Bump __FreeBSD_version to 800083. 1569 157020090419: 1571 The layout of struct malloc_type, used by modules to register new 1572 memory allocation types, has changed. Most modules will need to 1573 be rebuilt or panics may be experienced. 1574 Bump __FreeBSD_version to 800081. 1575 157620090415: 1577 Anticipate overflowing inp_flags - add inp_flags2. 1578 This changes most offsets in inpcb, so checking v4 connection 1579 state will require a world rebuild. 1580 Bump __FreeBSD_version to 800080. 1581 158220090415: 1583 Add an llentry to struct route and struct route_in6. Modules 1584 embedding a struct route will need to be recompiled. 1585 Bump __FreeBSD_version to 800079. 1586 158720090414: 1588 The size of rt_metrics_lite and by extension rtentry has changed. 1589 Networking administration apps will need to be recompiled. 1590 The route command now supports show as an alias for get, weighting 1591 of routes, sticky and nostick flags to alter the behavior of stateful 1592 load balancing. 1593 Bump __FreeBSD_version to 800078. 1594 159520090408: 1596 Do not use Giant for kbdmux(4) locking. This is wrong and 1597 apparently causing more problems than it solves. This will 1598 re-open the issue where interrupt handlers may race with 1599 kbdmux(4) in polling mode. Typical symptoms include (but 1600 not limited to) duplicated and/or missing characters when 1601 low level console functions (such as gets) are used while 1602 interrupts are enabled (for example geli password prompt, 1603 mountroot prompt etc.). Disabling kbdmux(4) may help. 1604 160520090407: 1606 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1607 kernel modules referencing any of the above need to be recompiled. 1608 Bump __FreeBSD_version to 800075. 1609 161020090320: 1611 GEOM_PART has become the default partition slicer for storage devices, 1612 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1613 introduces some changes: 1614 1615 MSDOS/EBR: the devices created from MSDOS extended partition entries 1616 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1617 to devices with offset-based names. fstabs may need to be modified. 1618 1619 BSD: the "geometry does not match label" warning is harmless in most 1620 cases but it points to problems in file system misalignment with 1621 disk geometry. The "c" partition is now implicit, covers the whole 1622 top-level drive and cannot be (mis)used by users. 1623 1624 General: Kernel dumps are now not allowed to be written to devices 1625 whose partition types indicate they are meant to be used for file 1626 systems (or, in case of MSDOS partitions, as something else than 1627 the "386BSD" type). 1628 1629 Most of these changes date approximately from 200812. 1630 163120090319: 1632 The uscanner(4) driver has been removed from the kernel. This follows 1633 Linux removing theirs in 2.6 and making libusb the default interface 1634 (supported by sane). 1635 163620090319: 1637 The multicast forwarding code has been cleaned up. netstat(1) 1638 only relies on KVM now for printing bandwidth upcall meters. 1639 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1640 ip6_mroute_mod respectively. The config(5) options for statically 1641 compiling this code remain the same, i.e. 'options MROUTING'. 1642 164320090315: 1644 Support for the IFF_NEEDSGIANT network interface flag has been 1645 removed, which means that non-MPSAFE network device drivers are no 1646 longer supported. In particular, if_ar, if_sr, and network device 1647 drivers from the old (legacy) USB stack can no longer be built or 1648 used. 1649 165020090313: 1651 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1652 a bunch of new language catalog files have also been added. 1653 This means that some common libc messages are now localized and 1654 they depend on the LC_MESSAGES environmental variable. 1655 165620090313: 1657 The k8temp(4) driver has been renamed to amdtemp(4) since 1658 support for Family 10 and Family 11 CPU families was added. 1659 166020090309: 1661 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1662 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1663 1664 For kernel developers, the most important changes are that the 1665 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1666 and this lock has been downgraded to a non-recursive mutex. 1667 1668 Transport protocols (UDP, Raw IP) are now responsible for filtering 1669 inbound multicast traffic according to group membership and source 1670 filters. The imo_multicast_filter() KPI exists for this purpose. 1671 Transports which do not use multicast (SCTP, TCP) already reject 1672 multicast by default. Forwarding and receive performance may improve 1673 as a mutex acquisition is no longer needed in the ip_input() 1674 low-level input path. in_addmulti() and in_delmulti() are shimmed 1675 to new KPIs which exist to support SSM in-kernel. 1676 1677 For application developers, it is recommended that loopback of 1678 multicast datagrams be disabled for best performance, as this 1679 will still cause the lock to be taken for each looped-back 1680 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1681 be tuned to 0 to disable loopback by default; it defaults to 1 1682 to preserve the existing behaviour. 1683 1684 For systems administrators, to obtain best performance with 1685 multicast reception and multiple groups, it is always recommended 1686 that a card with a suitably precise hash filter is used. Hash 1687 collisions will still result in the lock being taken within the 1688 transport protocol input path to check group membership. 1689 1690 If deploying FreeBSD in an environment with IGMP snooping switches, 1691 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1692 enabled; this forces 224.0.0.0/24 group membership to be announced 1693 via IGMP. 1694 1695 The size of 'struct igmpstat' has changed; netstat needs to be 1696 recompiled to reflect this. 1697 Bump __FreeBSD_version to 800070. 1698 169920090309: 1700 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1701 updated to use it. This requires a buildworld/installworld in order to 1702 update the library and dependencies (usbconfig, etc). Its advisable to 1703 rebuild all ports which uses libusb. More specific directions are given 1704 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1705 libusb are no longer required and can be removed. 1706 170720090302: 1708 A workaround is committed to allow the creation of System V shared 1709 memory segment of size > 2 GB on the 64-bit architectures. 1710 Due to a limitation of the existing ABI, the shm_segsz member 1711 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1712 wrong for large segments. Note that limits must be explicitly 1713 raised to allow such segments to be created. 1714 171520090301: 1716 The layout of struct ifnet has changed, requiring a rebuild of all 1717 network device driver modules. 1718 171920090227: 1720 The /dev handling for the new USB stack has changed, a 1721 buildworld/installworld is required for libusb20. 1722 172320090223: 1724 The new USB2 stack has now been permanently moved in and all kernel and 1725 module names reverted to their previous values (eg, usb, ehci, ohci, 1726 ums, ...). The old usb stack can be compiled in by prefixing the name 1727 with the letter 'o', the old usb modules have been removed. 1728 Updating entry 20090216 for xorg and 20090215 for libmap may still 1729 apply. 1730 173120090217: 1732 The rc.conf(5) option if_up_delay has been renamed to 1733 defaultroute_delay to better reflect its purpose. If you have 1734 customized this setting in /etc/rc.conf you need to update it to 1735 use the new name. 1736 173720090216: 1738 xorg 7.4 wants to configure its input devices via hald which does not 1739 yet work with USB2. If the keyboard/mouse does not work in xorg then 1740 add 1741 Option "AllowEmptyInput" "off" 1742 to your ServerLayout section. This will cause X to use the configured 1743 kbd and mouse sections from your xorg.conf. 1744 174520090215: 1746 The GENERIC kernels for all architectures now default to the new USB2 1747 stack. No kernel config options or code have been removed so if a 1748 problem arises please report it and optionally revert to the old USB 1749 stack. If you are loading USB kernel modules or have a custom kernel 1750 that includes GENERIC then ensure that usb names are also changed over, 1751 eg uftdi -> usb2_serial_ftdi. 1752 1753 Older programs linked against the ports libusb 0.1 need to be 1754 redirected to the new stack's libusb20. /etc/libmap.conf can 1755 be used for this: 1756 # Map old usb library to new one for usb2 stack 1757 libusb-0.1.so.8 libusb20.so.1 1758 175920090209: 1760 All USB ethernet devices now attach as interfaces under the name ueN 1761 (eg. ue0). This is to provide a predictable name as vendors often 1762 change usb chipsets in a product without notice. 1763 176420090203: 1765 The ichsmb(4) driver has been changed to require SMBus slave 1766 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1767 All of the other SMBus controller drivers require left-justified 1768 slave addresses, so this change makes all the drivers provide the 1769 same interface. 1770 177120090201: 1772 INET6 statistics (struct ip6stat) was updated. 1773 netstat(1) needs to be recompiled. 1774 177520090119: 1776 NTFS has been removed from GENERIC kernel on amd64 to match 1777 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1778 will load ntfs.ko module automatically when NTFS support is 1779 actually needed, unless ntfs.ko is not installed or security 1780 level prohibits loading kernel modules. If either is the case, 1781 "options NTFS" has to be added into kernel config. 1782 178320090115: 1784 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1785 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1786 800061. User space tools that rely on the size of struct tcpcb in 1787 tcp_var.h (e.g. sockstat) need to be recompiled. 1788 178920081225: 1790 ng_tty(4) module updated to match the new TTY subsystem. 1791 Due to API change, user-level applications must be updated. 1792 New API support added to mpd5 CVS and expected to be present 1793 in next mpd5.3 release. 1794 179520081219: 1796 With __FreeBSD_version 800060 the makefs tool is part of 1797 the base system (it was a port). 1798 179920081216: 1800 The afdata and ifnet locks have been changed from mutexes to 1801 rwlocks, network modules will need to be re-compiled. 1802 180320081214: 1804 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1805 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1806 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1807 architecture and 40 bytes on 64-bit architecture. The userland 1808 applications "arp" and "ndp" have been updated accordingly. 1809 The output from "netstat -r" shows only routing entries and 1810 none of the L2 information. 1811 181220081130: 1813 __FreeBSD_version 800057 marks the switchover from the 1814 binary ath hal to source code. Users must add the line: 1815 1816 options AH_SUPPORT_AR5416 1817 1818 to their kernel config files when specifying: 1819 1820 device ath_hal 1821 1822 The ath_hal module no longer exists; the code is now compiled 1823 together with the driver in the ath module. It is now 1824 possible to tailor chip support (i.e. reduce the set of chips 1825 and thereby the code size); consult ath_hal(4) for details. 1826 182720081121: 1828 __FreeBSD_version 800054 adds memory barriers to 1829 <machine/atomic.h>, new interfaces to ifnet to facilitate 1830 multiple hardware transmit queues for cards that support 1831 them, and a lock-less ring-buffer implementation to 1832 enable drivers to more efficiently manage queueing of 1833 packets. 1834 183520081117: 1836 A new version of ZFS (version 13) has been merged to -HEAD. 1837 This version has zpool attribute "listsnapshots" off by 1838 default, which means "zfs list" does not show snapshots, 1839 and is the same as Solaris behavior. 1840 184120081028: 1842 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1843 184420081009: 1845 The uhci, ohci, ehci and slhci USB Host controller drivers have 1846 been put into separate modules. If you load the usb module 1847 separately through loader.conf you will need to load the 1848 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1849 controller add the following to loader.conf: 1850 1851 uhci_load="YES" 1852 ehci_load="YES" 1853 185420081009: 1855 The ABI used by the PMC toolset has changed. Please keep 1856 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1857 sync. 1858 185920081009: 1860 atapci kernel module now includes only generic PCI ATA 1861 driver. AHCI driver moved to ataahci kernel module. 1862 All vendor-specific code moved into separate kernel modules: 1863 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1864 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1865 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1866 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1867 186820080820: 1869 The TTY subsystem of the kernel has been replaced by a new 1870 implementation, which provides better scalability and an 1871 improved driver model. Most common drivers have been migrated to 1872 the new TTY subsystem, while others have not. The following 1873 drivers have not yet been ported to the new TTY layer: 1874 1875 PCI/ISA: 1876 cy, digi, rc, rp, sio 1877 1878 USB: 1879 ubser, ucycom 1880 1881 Line disciplines: 1882 ng_h4, ng_tty, ppp, sl, snp 1883 1884 Adding these drivers to your kernel configuration file shall 1885 cause compilation to fail. 1886 188720080818: 1888 ntpd has been upgraded to 4.2.4p5. 1889 189020080801: 1891 OpenSSH has been upgraded to 5.1p1. 1892 1893 For many years, FreeBSD's version of OpenSSH preferred DSA 1894 over RSA for host and user authentication keys. With this 1895 upgrade, we've switched to the vendor's default of RSA over 1896 DSA. This may cause upgraded clients to warn about unknown 1897 host keys even for previously known hosts. Users should 1898 follow the usual procedure for verifying host keys before 1899 accepting the RSA key. 1900 1901 This can be circumvented by setting the "HostKeyAlgorithms" 1902 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1903 command line. 1904 1905 Please note that the sequence of keys offered for 1906 authentication has been changed as well. You may want to 1907 specify IdentityFile in a different order to revert this 1908 behavior. 1909 191020080713: 1911 The sio(4) driver has been removed from the i386 and amd64 1912 kernel configuration files. This means uart(4) is now the 1913 default serial port driver on those platforms as well. 1914 1915 To prevent collisions with the sio(4) driver, the uart(4) driver 1916 uses different names for its device nodes. This means the 1917 onboard serial port will now most likely be called "ttyu0" 1918 instead of "ttyd0". You may need to reconfigure applications to 1919 use the new device names. 1920 1921 When using the serial port as a boot console, be sure to update 1922 /boot/device.hints and /etc/ttys before booting the new kernel. 1923 If you forget to do so, you can still manually specify the hints 1924 at the loader prompt: 1925 1926 set hint.uart.0.at="isa" 1927 set hint.uart.0.port="0x3F8" 1928 set hint.uart.0.flags="0x10" 1929 set hint.uart.0.irq="4" 1930 boot -s 1931 193220080609: 1933 The gpt(8) utility has been removed. Use gpart(8) to partition 1934 disks instead. 1935 193620080603: 1937 The version that Linuxulator emulates was changed from 2.4.2 1938 to 2.6.16. If you experience any problems with Linux binaries 1939 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1940 if it fixes the problem contact emulation mailing list. 1941 194220080525: 1943 ISDN4BSD (I4B) was removed from the src tree. You may need to 1944 update a your kernel configuration and remove relevant entries. 1945 194620080509: 1947 I have checked in code to support multiple routing tables. 1948 See the man pages setfib(1) and setfib(2). 1949 This is a hopefully backwards compatible version, 1950 but to make use of it you need to compile your kernel 1951 with options ROUTETABLES=2 (or more up to 16). 1952 195320080420: 1954 The 802.11 wireless support was redone to enable multi-bss 1955 operation on devices that are capable. The underlying device 1956 is no longer used directly but instead wlanX devices are 1957 cloned with ifconfig. This requires changes to rc.conf files. 1958 For example, change: 1959 ifconfig_ath0="WPA DHCP" 1960 to 1961 wlans_ath0=wlan0 1962 ifconfig_wlan0="WPA DHCP" 1963 see rc.conf(5) for more details. In addition, mergemaster of 1964 /etc/rc.d is highly recommended. Simultaneous update of userland 1965 and kernel wouldn't hurt either. 1966 1967 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1968 modules were merged into the base wlan module. All references 1969 to these modules (e.g. in kernel config files) must be removed. 1970 197120080408: 1972 psm(4) has gained write(2) support in native operation level. 1973 Arbitrary commands can be written to /dev/psm%d and status can 1974 be read back from it. Therefore, an application is responsible 1975 for status validation and error recovery. It is a no-op in 1976 other operation levels. 1977 197820080312: 1979 Support for KSE threading has been removed from the kernel. To 1980 run legacy applications linked against KSE libmap.conf may 1981 be used. The following libmap.conf may be used to ensure 1982 compatibility with any prior release: 1983 1984 libpthread.so.1 libthr.so.1 1985 libpthread.so.2 libthr.so.2 1986 libkse.so.3 libthr.so.3 1987 198820080301: 1989 The layout of struct vmspace has changed. This affects libkvm 1990 and any executables that link against libkvm and use the 1991 kvm_getprocs() function. In particular, but not exclusively, 1992 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1993 The effects are minimal, but it's advisable to upgrade world 1994 nonetheless. 1995 199620080229: 1997 The latest em driver no longer has support in it for the 1998 82575 adapter, this is now moved to the igb driver. The 1999 split was done to make new features that are incompatible 2000 with older hardware easier to do. 2001 200220080220: 2003 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2004 likewise the kernel option is now GEOM_LINUX_LVM. 2005 200620080211: 2007 The default NFS mount mode has changed from UDP to TCP for 2008 increased reliability. If you rely on (insecurely) NFS 2009 mounting across a firewall you may need to update your 2010 firewall rules. 2011 201220080208: 2013 Belatedly note the addition of m_collapse for compacting 2014 mbuf chains. 2015 201620080126: 2017 The fts(3) structures have been changed to use adequate 2018 integer types for their members and so to be able to cope 2019 with huge file trees. The old fts(3) ABI is preserved 2020 through symbol versioning in libc, so third-party binaries 2021 using fts(3) should still work, although they will not take 2022 advantage of the extended types. At the same time, some 2023 third-party software might fail to build after this change 2024 due to unportable assumptions made in its source code about 2025 fts(3) structure members. Such software should be fixed 2026 by its vendor or, in the worst case, in the ports tree. 2027 FreeBSD_version 800015 marks this change for the unlikely 2028 case that a portable fix is impossible. 2029 203020080123: 2031 To upgrade to -current after this date, you must be running 2032 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2033 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2034 203520071128: 2036 The ADAPTIVE_GIANT kernel option has been retired because its 2037 functionality is the default now. 2038 203920071118: 2040 The AT keyboard emulation of sunkbd(4) has been turned on 2041 by default. In order to make the special symbols of the Sun 2042 keyboards driven by sunkbd(4) work under X these now have 2043 to be configured the same way as Sun USB keyboards driven 2044 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2045 2046 Option "XkbLayout" "us" 2047 Option "XkbRules" "xorg" 2048 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2049 205020071024: 2051 It has been decided that it is desirable to provide ABI 2052 backwards compatibility to the FreeBSD 4/5/6 versions of the 2053 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2054 broken with the introduction of PCI domain support (see the 2055 20070930 entry). Unfortunately, this required the ABI of 2056 PCIOCGETCONF to be broken again in order to be able to 2057 provide backwards compatibility to the old version of that 2058 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2059 again. As for prominent ports this affects neither pciutils 2060 nor xorg-server this time, the hal port needs to be rebuilt 2061 however. 2062 206320071020: 2064 The misnamed kthread_create() and friends have been renamed 2065 to kproc_create() etc. Many of the callers already 2066 used kproc_start().. 2067 I will return kthread_create() and friends in a while 2068 with implementations that actually create threads, not procs. 2069 Renaming corresponds with version 800002. 2070 207120071010: 2072 RELENG_7 branched. 2073 2074COMMON ITEMS: 2075 2076 General Notes 2077 ------------- 2078 Avoid using make -j when upgrading. While generally safe, there are 2079 sometimes problems using -j to upgrade. If your upgrade fails with 2080 -j, please try again without -j. From time to time in the past there 2081 have been problems using -j with buildworld and/or installworld. This 2082 is especially true when upgrading between "distant" versions (eg one 2083 that cross a major release boundary or several minor releases, or when 2084 several months have passed on the -current branch). 2085 2086 Sometimes, obscure build problems are the result of environment 2087 poisoning. This can happen because the make utility reads its 2088 environment when searching for values for global variables. To run 2089 your build attempts in an "environmental clean room", prefix all make 2090 commands with 'env -i '. See the env(1) manual page for more details. 2091 2092 When upgrading from one major version to another it is generally best 2093 to upgrade to the latest code in the currently installed branch first, 2094 then do an upgrade to the new branch. This is the best-tested upgrade 2095 path, and has the highest probability of being successful. Please try 2096 this approach before reporting problems with a major version upgrade. 2097 2098 When upgrading a live system, having a root shell around before 2099 installing anything can help undo problems. Not having a root shell 2100 around can lead to problems if pam has changed too much from your 2101 starting point to allow continued authentication after the upgrade. 2102 2103 ZFS notes 2104 --------- 2105 When upgrading the boot ZFS pool to a new version, always follow 2106 these two steps: 2107 2108 1.) recompile and reinstall the ZFS boot loader and boot block 2109 (this is part of "make buildworld" and "make installworld") 2110 2111 2.) update the ZFS boot block on your boot drive 2112 2113 The following example updates the ZFS boot block on the first 2114 partition (freebsd-boot) of a GPT partitioned drive ad0: 2115 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2116 2117 Non-boot pools do not need these updates. 2118 2119 To build a kernel 2120 ----------------- 2121 If you are updating from a prior version of FreeBSD (even one just 2122 a few days old), you should follow this procedure. It is the most 2123 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2124 2125 make kernel-toolchain 2126 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2127 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2128 2129 To test a kernel once 2130 --------------------- 2131 If you just want to boot a kernel once (because you are not sure 2132 if it works, or if you want to boot a known bad kernel to provide 2133 debugging information) run 2134 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2135 nextboot -k testkernel 2136 2137 To just build a kernel when you know that it won't mess you up 2138 -------------------------------------------------------------- 2139 This assumes you are already running a CURRENT system. Replace 2140 ${arch} with the architecture of your machine (e.g. "i386", 2141 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2142 2143 cd src/sys/${arch}/conf 2144 config KERNEL_NAME_HERE 2145 cd ../compile/KERNEL_NAME_HERE 2146 make depend 2147 make 2148 make install 2149 2150 If this fails, go to the "To build a kernel" section. 2151 2152 To rebuild everything and install it on the current system. 2153 ----------------------------------------------------------- 2154 # Note: sometimes if you are running current you gotta do more than 2155 # is listed here if you are upgrading from a really old current. 2156 2157 <make sure you have good level 0 dumps> 2158 make buildworld 2159 make kernel KERNCONF=YOUR_KERNEL_HERE 2160 [1] 2161 <reboot in single user> [3] 2162 mergemaster -p [5] 2163 make installworld 2164 mergemaster -i [4] 2165 make delete-old [6] 2166 <reboot> 2167 2168 To cross-install current onto a separate partition 2169 -------------------------------------------------- 2170 # In this approach we use a separate partition to hold 2171 # current's root, 'usr', and 'var' directories. A partition 2172 # holding "/", "/usr" and "/var" should be about 2GB in 2173 # size. 2174 2175 <make sure you have good level 0 dumps> 2176 <boot into -stable> 2177 make buildworld 2178 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2179 <maybe newfs current's root partition> 2180 <mount current's root partition on directory ${CURRENT_ROOT}> 2181 make installworld DESTDIR=${CURRENT_ROOT} 2182 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2183 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2184 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2185 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2186 <reboot into current> 2187 <do a "native" rebuild/install as described in the previous section> 2188 <maybe install compatibility libraries from ports/misc/compat*> 2189 <reboot> 2190 2191 2192 To upgrade in-place from stable to current 2193 ---------------------------------------------- 2194 <make sure you have good level 0 dumps> 2195 make buildworld [9] 2196 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2197 [1] 2198 <reboot in single user> [3] 2199 mergemaster -p [5] 2200 make installworld 2201 mergemaster -i [4] 2202 make delete-old [6] 2203 <reboot> 2204 2205 Make sure that you've read the UPDATING file to understand the 2206 tweaks to various things you need. At this point in the life 2207 cycle of current, things change often and you are on your own 2208 to cope. The defaults can also change, so please read ALL of 2209 the UPDATING entries. 2210 2211 Also, if you are tracking -current, you must be subscribed to 2212 freebsd-current@freebsd.org. Make sure that before you update 2213 your sources that you have read and understood all the recent 2214 messages there. If in doubt, please track -stable which has 2215 much fewer pitfalls. 2216 2217 [1] If you have third party modules, such as vmware, you 2218 should disable them at this point so they don't crash your 2219 system on reboot. 2220 2221 [3] From the bootblocks, boot -s, and then do 2222 fsck -p 2223 mount -u / 2224 mount -a 2225 cd src 2226 adjkerntz -i # if CMOS is wall time 2227 Also, when doing a major release upgrade, it is required that 2228 you boot into single user mode to do the installworld. 2229 2230 [4] Note: This step is non-optional. Failure to do this step 2231 can result in a significant reduction in the functionality of the 2232 system. Attempting to do it by hand is not recommended and those 2233 that pursue this avenue should read this file carefully, as well 2234 as the archives of freebsd-current and freebsd-hackers mailing lists 2235 for potential gotchas. The -U option is also useful to consider. 2236 See mergemaster(8) for more information. 2237 2238 [5] Usually this step is a noop. However, from time to time 2239 you may need to do this if you get unknown user in the following 2240 step. It never hurts to do it all the time. You may need to 2241 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2242 install) after the buildworld before this step if you last updated 2243 from current before 20130425 or from -stable before 20130430. 2244 2245 [6] This only deletes old files and directories. Old libraries 2246 can be deleted by "make delete-old-libs", but you have to make 2247 sure that no program is using those libraries anymore. 2248 2249 [8] In order to have a kernel that can run the 4.x binaries needed to 2250 do an installworld, you must include the COMPAT_FREEBSD4 option in 2251 your kernel. Failure to do so may leave you with a system that is 2252 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2253 required to run the 5.x binaries on more recent kernels. And so on 2254 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2255 2256 Make sure that you merge any new devices from GENERIC since the 2257 last time you updated your kernel config file. 2258 2259 [9] When checking out sources, you must include the -P flag to have 2260 cvs prune empty directories. 2261 2262 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2263 "?=" instead of the "=" assignment operator, so that buildworld can 2264 override the CPUTYPE if it needs to. 2265 2266 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2267 not on the command line, or in /etc/make.conf. buildworld will 2268 warn if it is improperly defined. 2269FORMAT: 2270 2271This file contains a list, in reverse chronological order, of major 2272breakages in tracking -current. It is not guaranteed to be a complete 2273list of such breakages, and only contains entries since October 10, 2007. 2274If you need to see UPDATING entries from before that date, you will need 2275to fetch an UPDATING file from an older FreeBSD release. 2276 2277Copyright information: 2278 2279Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2280 2281Redistribution, publication, translation and use, with or without 2282modification, in full or in part, in any form or format of this 2283document are permitted without further permission from the author. 2284 2285THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2286IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2287WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2288DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2289INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2290(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2291SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2292HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2293STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2294IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2295POSSIBILITY OF SUCH DAMAGE. 2296 2297Contact Warner Losh if you have any questions about your use of 2298this document. 2299 2300$FreeBSD: releng/10.1/UPDATING 288512 2015-10-02 16:37:06Z delphij $ 2301