UPDATING revision 286905
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 1920150818: p18 FreeBSD-SA-15:20.expat 20 21 Fix multiple integer overflows in expat (libbsdxml) XML parser. 22 [SA-15:20] 23 2420150805: p17 FreeBSD-SA-15:18.bsdpatch 25 FreeBSD-SA-15:19.routed 26 27 Fix patch(1) shell injection vulnerability via ed(1). 28 [SA-15:18] 29 30 Fix routed remote denial of service vulnerability. [SA-15:19] 31 3220150728: p16 FreeBSD-SA-15:14.bsdpatch 33 FreeBSD-SA-15:15.tcp 34 FreeBSD-SA-15:16.openssh 35 36 Fix patch(1) shell injection vulnerability. [SA-15:14] 37 38 Fix resource exhaustion in TCP reassembly. [SA-15:15] 39 40 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 41 4220150721: p15 FreeBSD-SA-15:13.tcp 43 44 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 45 [SA-15:13] 46 4720150630: p14 FreeBSD-EN-15:08.sendmail [revised] 48 FreeBSD-EN-15:09.xlocale 49 FreeBSD-EN-15:10.iconv 50 51 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 52 53 Fix inconsistency between locale and rune locale states. 54 [EN-15:09] 55 56 Improved iconv(3) UTF-7 support. [EN-15:10] 57 5820150618: p13 FreeBSD-EN-15:08.sendmail 59 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 60 6120150612: p12 FreeBSD-SA-15:10.openssl 62 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 63 6420150609: p11 FreeBSD-EN-15:06.file 65 FreeBSD-EN-15:07.zfs 66 67 Updated base system file(1) to 5.22 to address multiple denial 68 of service issues. [EN-15:06] 69 70 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 71 [EN-15:07] 72 7320150513: p10 FreeBSD-EN-15:04.freebsd-update 74 FreeBSD-EN-15:05.ufs 75 76 Fix bug with freebsd-update(8) that does not ensure the previous 77 upgrade was completed. [EN-15:04] 78 79 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 80 8120150407: p9 FreeBSD-SA-15:04.igmp [revised] 82 FreeBSD-SA-15:07.ntp 83 FreeBSD-SA-15:08.bsdinstall 84 FreeBSD-SA-15:09.ipv6 85 86 Improved patch for SA-15:04.igmp. 87 88 Fix multiple vulnerabilities of ntp. [SA-15:07] 89 90 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 91 92 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 93 9420150320: p8 95 Fix patch for SA-15:06.openssl. 96 9720150319: p7 FreeBSD-SA-15:06.openssl 98 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 99 10020150225: p6 FreeBSD-SA-15:04.igmp 101 FreeBSD-EN-15:01.vt 102 FreeBSD-EN-15:02.openssl 103 FreeBSD-EN-15:03.freebsd-update 104 105 Fix integer overflow in IGMP protocol. [SA-15:04] 106 107 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 108 109 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 110 111 Fix freebsd-update libraries update ordering issue. [EN-15:03] 112 11320150127: p5 FreeBSD-SA-15:02.kmem 114 FreeBSD-SA-15:03.sctp 115 116 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 117 vulnerability. [SA-15:02] 118 119 Fix SCTP stream reset vulnerability. [SA-15:03] 120 12120150114: p4 FreeBSD-SA-15:01.openssl 122 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 123 12420141223: p3 FreeBSD-SA-14:31.ntp 125 FreeBSD-EN-14:13.freebsd-update 126 127 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 128 Fix directory deletion issue in freebsd-update. [EN-14:13] 129 13020141217: p2 FreeBSD-SA-14:30.unbound 131 Fix unbound remote denial of service vulnerability. 132 13320141210: p1 FreeBSD-SA-14:27.stdio 134 FreeBSD-SA-14:28.file 135 136 Fix buffer overflow in stdio. [SA-14:27] 137 138 Fix multiple vulnerabilities in file(1) and libmagic(3). 139 [SA-14:28] 140 14120140904: 142 The ofwfb driver, used to provide a graphics console on PowerPC when 143 using vt(4), no longer allows mmap() of all of physical memory. This 144 will prevent Xorg on PowerPC with some ATI graphics cards from 145 initializing properly unless x11-servers/xorg-server is updated to 146 1.12.4_8 or newer. 147 14820140831: 149 The libatf-c and libatf-c++ major versions were downgraded to 0 and 150 1 respectively to match the upstream numbers. They were out of 151 sync because, when they were originally added to FreeBSD, the 152 upstream versions were not respected. These libraries are private 153 and not yet built by default, so renumbering them should be a 154 non-issue. However, unclean source trees will yield broken test 155 programs once the operator executes "make delete-old-libs" after a 156 "make installworld". 157 158 Additionally, the atf-sh binary was made private by moving it into 159 /usr/libexec/. Already-built shell test programs will keep the 160 path to the old binary so they will break after "make delete-old" 161 is run. 162 163 If you are using WITH_TESTS=yes (not the default), wipe the object 164 tree and rebuild from scratch to prevent spurious test failures. 165 This is only needed once: the misnumbered libraries and misplaced 166 binaries have been added to OptionalObsoleteFiles.inc so they will 167 be removed during a clean upgrade. 168 16920140814: 170 The ixgbe tunables now match their sysctl counterparts, for example: 171 hw.ixgbe.enable_aim => hw.ix.enable_aim 172 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 173 17420140801: 175 The NFSv4.1 server committed by r269398 changes the internal 176 function call interfaces used between the NFS and krpc modules. 177 As such, __FreeBSD_version was bumped. 178 17920140729: 180 The default unbound configuration has been modified to address 181 issues with reverse lookups on networks that use private 182 address ranges. If you use the local_unbound service, run 183 "service local_unbound setup" as root to regenerate your 184 configuration, then "service local_unbound reload" to load the 185 new configuration. 186 18720140717: 188 It is no longer necessary to include the dwarf version in your DEBUG 189 options in your kernel config file. The bug that required it to be 190 placed in the config file has bene fixed. DEBUG should now just 191 contain -g. The build system will automatically update things 192 to do the right thing. 193 19420140715: 195 Several ABI breaking changes were merged to CTL and new iSCSI code. 196 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 197 iscsictl need to be rebuilt to work with a new kernel. 198 19920140708: 200 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 201 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 202 which differs from the behaviour controlled by this knob.) 203 20420140608: 205 On i386 and amd64 systems, the onifconsole flag is now set by default 206 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 207 as a login TTY if it is set in the bootloader as an active kernel 208 console. No changes in behavior should result otherwise. To revert to 209 the previous behavior, set ttyu0 to "off" in /etc/ttys. 210 21120140512: 212 Clang and llvm have been upgraded to 3.4.1 release. 213 21420140321: 215 Clang and llvm have been upgraded to 3.4 release. 216 21720140306: 218 If a Makefile in a tests/ directory was auto-generating a Kyuafile 219 instead of providing an explicit one, this would prevent such 220 Makefile from providing its own Kyuafile in the future during 221 NO_CLEAN builds. This has been fixed in the Makefiles but manual 222 intervention is needed to clean an objdir if you use NO_CLEAN: 223 # find /usr/obj -name Kyuafile | xargs rm -f 224 22520140303: 226 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 227 capability mode support. Please note that enabling the feature in 228 kernel is still highly recommended. 229 23020140227: 231 OpenSSH is now built with sandbox support, and will use sandbox as 232 the default privilege separation method. This requires Capsicum 233 capability mode support in kernel. 234 23520140216: 236 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 237 been deprecated and will not be part of FreeBSD 11.0 and later 238 releases. If you use this driver, please consider switching to 239 the nfe(4) driver instead. 240 24120140120: 242 10.0-RELEASE. 243 24420131216: 245 The behavior of gss_pseudo_random() for the krb5 mechanism 246 has changed, for applications requesting a longer random string 247 than produced by the underlying enctype's pseudo-random() function. 248 In particular, the random string produced from a session key of 249 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 250 be different at the 17th octet and later, after this change. 251 The counter used in the PRF+ construction is now encoded as a 252 big-endian integer in accordance with RFC 4402. 253 __FreeBSD_version is bumped to 1000701. 254 25520131108: 256 The WITHOUT_ATF build knob has been removed and its functionality 257 has been subsumed into the more generic WITHOUT_TESTS. If you were 258 using the former to disable the build of the ATF libraries, you 259 should change your settings to use the latter. 260 26120131031: 262 The default version of mtree is nmtree which is obtained from 263 NetBSD. The output is generally the same, but may vary 264 slightly. If you found you need identical output adding 265 "-F freebsd9" to the command line should do the trick. For the 266 time being, the old mtree is available as fmtree. 267 26820131014: 269 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 270 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 271 1.1.4_8 and verify bsdyml not linked in, before running "make 272 delete-old-libs": 273 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 274 or 275 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 276 27720131010: 278 The rc.d/jail script has been updated to support jail(8) 279 configuration file. The "jail_<jname>_*" rc.conf(5) variables 280 for per-jail configuration are automatically converted to 281 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 282 This is transparently backward compatible. See below about some 283 incompatibilities and rc.conf(5) manual page for more details. 284 285 These variables are now deprecated in favor of jail(8) configuration 286 file. One can use "rc.d/jail config <jname>" command to generate 287 a jail(8) configuration file in /var/run/jail.<jname>.conf without 288 running the jail(8) utility. The default pathname of the 289 configuration file is /etc/jail.conf and can be specified by 290 using $jail_conf or $jail_<jname>_conf variables. 291 292 Please note that jail_devfs_ruleset accepts an integer at 293 this moment. Please consider to rewrite the ruleset name 294 with an integer. 295 29620130930: 297 BIND has been removed from the base system. If all you need 298 is a local resolver, simply enable and start the local_unbound 299 service instead. Otherwise, several versions of BIND are 300 available in the ports tree. The dns/bind99 port is one example. 301 302 With this change, nslookup(1) and dig(1) are no longer in the base 303 system. Users should instead use host(1) and drill(1) which are 304 in the base system. Alternatively, nslookup and dig can 305 be obtained by installing the dns/bind-tools port. 306 30720130916: 308 With the addition of unbound(8), a new unbound user is now 309 required during installworld. "mergemaster -p" can be used to 310 add the user prior to installworld, as documented in the handbook. 311 31220130911: 313 OpenSSH is now built with DNSSEC support, and will by default 314 silently trust signed SSHFP records. This can be controlled with 315 the VerifyHostKeyDNS client configuration setting. DNSSEC support 316 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 317 31820130906: 319 The GNU Compiler Collection and C++ standard library (libstdc++) 320 are no longer built by default on platforms where clang is the system 321 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 322 options in src.conf. 323 32420130905: 325 The PROCDESC kernel option is now part of the GENERIC kernel 326 configuration and is required for the rwhod(8) to work. 327 If you are using custom kernel configuration, you should include 328 'options PROCDESC'. 329 33020130905: 331 The API and ABI related to the Capsicum framework was modified 332 in backward incompatible way. The userland libraries and programs 333 have to be recompiled to work with the new kernel. This includes the 334 following libraries and programs, but the whole buildworld is 335 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 336 kdump, procstat, rwho, rwhod, uniq. 337 33820130903: 339 AES-NI intrinsic support has been added to gcc. The AES-NI module 340 has been updated to use this support. A new gcc is required to build 341 the aesni module on both i386 and amd64. 342 34320130821: 344 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 345 Thus "device padlock_rng" and "device rdrand_rng" should be 346 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 347 34820130813: 349 WITH_ICONV has been split into two feature sets. WITH_ICONV now 350 enables just the iconv* functionality and is now on by default. 351 WITH_LIBICONV_COMPAT enables the libiconv api and link time 352 compatability. Set WITHOUT_ICONV to build the old way. 353 If you have been using WITH_ICONV before, you will very likely 354 need to turn on WITH_LIBICONV_COMPAT. 355 35620130806: 357 INVARIANTS option now enables DEBUG for code with OpenSolaris and 358 Illumos origin, including ZFS. If you have INVARIANTS in your 359 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 360 explicitly. 361 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 362 locks if WITNESS option was set. Because that generated a lot of 363 witness(9) reports and all of them were believed to be false 364 positives, this is no longer done. New option OPENSOLARIS_WITNESS 365 can be used to achieve the previous behavior. 366 36720130806: 368 Timer values in IPv6 data structures now use time_uptime instead 369 of time_second. Although this is not a user-visible functional 370 change, userland utilities which directly use them---ndp(8), 371 rtadvd(8), and rtsold(8) in the base system---need to be updated 372 to r253970 or later. 373 37420130802: 375 find -delete can now delete the pathnames given as arguments, 376 instead of only files found below them or if the pathname did 377 not contain any slashes. Formerly, the following error message 378 would result: 379 380 find: -delete: <path>: relative path potentially not safe 381 382 Deleting the pathnames given as arguments can be prevented 383 without error messages using -mindepth 1 or by changing 384 directory and passing "." as argument to find. This works in the 385 old as well as the new version of find. 386 38720130726: 388 Behavior of devfs rules path matching has been changed. 389 Pattern is now always matched against fully qualified devfs 390 path and slash characters must be explicitly matched by 391 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 392 subdirectories must be reviewed. 393 39420130716: 395 The default ARM ABI has changed to the ARM EABI. The old ABI is 396 incompatible with the ARM EABI and all programs and modules will 397 need to be rebuilt to work with a new kernel. 398 399 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 400 401 NOTE: Support for the old ABI will be removed in the future and 402 users are advised to upgrade. 403 40420130709: 405 pkg_install has been disconnected from the build if you really need it 406 you should add WITH_PKGTOOLS in your src.conf(5). 407 40820130709: 409 Most of network statistics structures were changed to be able 410 keep 64-bits counters. Thus all tools, that work with networking 411 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 412 41320130629: 414 Fix targets that run multiple make's to use && rather than ; 415 so that subsequent steps depend on success of previous. 416 417 NOTE: if building 'universe' with -j* on stable/8 or stable/9 418 it would be better to start the build using bmake, to avoid 419 overloading the machine. 420 42120130618: 422 Fix a bug that allowed a tracing process (e.g. gdb) to write 423 to a memory-mapped file in the traced process's address space 424 even if neither the traced process nor the tracing process had 425 write access to that file. 426 42720130615: 428 CVS has been removed from the base system. An exact copy 429 of the code is available from the devel/cvs port. 430 43120130613: 432 Some people report the following error after the switch to bmake: 433 434 make: illegal option -- J 435 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 436 ... 437 *** [buildworld] Error code 2 438 439 this likely due to an old instance of make in 440 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 441 which src/Makefile will use that blindly, if it exists, so if 442 you see the above error: 443 444 rm -rf `make -V MAKEPATH` 445 446 should resolve it. 447 44820130516: 449 Use bmake by default. 450 Whereas before one could choose to build with bmake via 451 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 452 make. The goal is to remove these knobs for 10-RELEASE. 453 454 It is worth noting that bmake (like gmake) treats the command 455 line as the unit of failure, rather than statements within the 456 command line. Thus '(cd some/where && dosomething)' is safer 457 than 'cd some/where; dosomething'. The '()' allows consistent 458 behavior in parallel build. 459 46020130429: 461 Fix a bug that allows NFS clients to issue READDIR on files. 462 46320130426: 464 The WITHOUT_IDEA option has been removed because 465 the IDEA patent expired. 466 46720130426: 468 The sysctl which controls TRIM support under ZFS has been renamed 469 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 470 enabled by default. 471 47220130425: 473 The mergemaster command now uses the default MAKEOBJDIRPREFIX 474 rather than creating it's own in the temporary directory in 475 order allow access to bootstrapped versions of tools such as 476 install and mtree. When upgrading from version of FreeBSD where 477 the install command does not support -l, you will need to 478 install a new mergemaster command if mergemaster -p is required. 479 This can be accomplished with the command (cd src/usr.sbin/mergemaster 480 && make install). 481 48220130404: 483 Legacy ATA stack, disabled and replaced by new CAM-based one since 484 FreeBSD 9.0, completely removed from the sources. Kernel modules 485 atadisk and atapi*, user-level tools atacontrol and burncd are 486 removed. Kernel option `options ATA_CAM` is now permanently enabled 487 and removed. 488 48920130319: 490 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 491 and socketpair(2). Software, in particular Kerberos, may 492 automatically detect and use these during building. The resulting 493 binaries will not work on older kernels. 494 49520130308: 496 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 497 information, see the respective 20130304 entry). 498 49920130304: 500 Recent commits to callout(9) changed the size of struct callout, 501 so the KBI is probably heavily disturbed. Also, some functions 502 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 503 by macros. Every kernel module using it won't load, so rebuild 504 is requested. 505 506 The ctl device has been re-enabled in GENERIC for i386 and amd64, 507 but does not initialize by default (because of the new CTL_DISABLE 508 option) to save memory. To re-enable it, remove the CTL_DISABLE 509 option from the kernel config file or set kern.cam.ctl.disable=0 510 in /boot/loader.conf. 511 51220130301: 513 The ctl device has been disabled in GENERIC for i386 and amd64. 514 This was done due to the extra memory being allocated at system 515 initialisation time by the ctl driver which was only used if 516 a CAM target device was created. This makes a FreeBSD system 517 unusable on 128MB or less of RAM. 518 51920130208: 520 A new compression method (lz4) has been merged to -HEAD. Please 521 refer to zpool-features(7) for more information. 522 523 Please refer to the "ZFS notes" section of this file for information 524 on upgrading boot ZFS pools. 525 52620130129: 527 A BSD-licensed patch(1) variant has been added and is installed 528 as bsdpatch, being the GNU version the default patch. 529 To inverse the logic and use the BSD-licensed one as default, 530 while having the GNU version installed as gnupatch, rebuild 531 and install world with the WITH_BSD_PATCH knob set. 532 53320130121: 534 Due to the use of the new -l option to install(1) during build 535 and install, you must take care not to directly set the INSTALL 536 make variable in your /etc/make.conf, /etc/src.conf, or on the 537 command line. If you wish to use the -C flag for all installs 538 you may be able to add INSTALL+=-C to /etc/make.conf or 539 /etc/src.conf. 540 54120130118: 542 The install(1) option -M has changed meaning and now takes an 543 argument that is a file or path to append logs to. In the 544 unlikely event that -M was the last option on the command line 545 and the command line contained at least two files and a target 546 directory the first file will have logs appended to it. The -M 547 option served little practical purpose in the last decade so its 548 use is expected to be extremely rare. 549 55020121223: 551 After switching to Clang as the default compiler some users of ZFS 552 on i386 systems started to experience stack overflow kernel panics. 553 Please consider using 'options KSTACK_PAGES=4' in such configurations. 554 55520121222: 556 GEOM_LABEL now mangles label names read from file system metadata. 557 Mangling affect labels containing spaces, non-printable characters, 558 '%' or '"'. Device names in /etc/fstab and other places may need to 559 be updated. 560 56120121217: 562 By default, only the 10 most recent kernel dumps will be saved. To 563 restore the previous behaviour (no limit on the number of kernel dumps 564 stored in the dump directory) add the following line to /etc/rc.conf: 565 566 savecore_flags="" 567 56820121201: 569 With the addition of auditdistd(8), a new auditdistd user is now 570 required during installworld. "mergemaster -p" can be used to 571 add the user prior to installworld, as documented in the handbook. 572 57320121117: 574 The sin6_scope_id member variable in struct sockaddr_in6 is now 575 filled by the kernel before passing the structure to the userland via 576 sysctl or routing socket. This means the KAME-specific embedded scope 577 id in sin6_addr.s6_addr[2] is always cleared in userland application. 578 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 579 __FreeBSD_version is bumped to 1000025. 580 58120121105: 582 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 583 This means that the world and kernel will be compiled with clang 584 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 585 and /usr/bin/cpp. To disable this behavior and revert to building 586 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 587 of current may need to bootstrap WITHOUT_CLANG first if the clang 588 build fails (its compatibility window doesn't extend to the 9 stable 589 branch point). 590 59120121102: 592 The IPFIREWALL_FORWARD kernel option has been removed. Its 593 functionality now turned on by default. 594 59520121023: 596 The ZERO_COPY_SOCKET kernel option has been removed and 597 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 598 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 599 mechanism which is not safe and may result in kernel crashes. 600 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 601 driver supports disposeable external page sized mbuf storage. 602 Proper replacements for both zero-copy mechanisms are under 603 consideration and will eventually lead to complete removal 604 of the two kernel options. 605 60620121023: 607 The IPv4 network stack has been converted to network byte 608 order. The following modules need to be recompiled together 609 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 610 pf(4), ipfw(4), ng_ipfw(4), stf(4). 611 61220121022: 613 Support for non-MPSAFE filesystems was removed from VFS. The 614 VFS_VERSION was bumped, all filesystem modules shall be 615 recompiled. 616 61720121018: 618 All the non-MPSAFE filesystems have been disconnected from 619 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 620 portalfs, smbfs, xfs. 621 62220121016: 623 The interface cloning API and ABI has changed. The following 624 modules need to be recompiled together with kernel: 625 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 626 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 627 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 628 62920121015: 630 The sdhci driver was split in two parts: sdhci (generic SD Host 631 Controller logic) and sdhci_pci (actual hardware driver). 632 No kernel config modifications are required, but if you 633 load sdhc as a module you must switch to sdhci_pci instead. 634 63520121014: 636 Import the FUSE kernel and userland support into base system. 637 63820121013: 639 The GNU sort(1) program has been removed since the BSD-licensed 640 sort(1) has been the default for quite some time and no serious 641 problems have been reported. The corresponding WITH_GNU_SORT 642 knob has also gone. 643 64420121006: 645 The pfil(9) API/ABI for AF_INET family has been changed. Packet 646 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 647 with new kernel. 648 64920121001: 650 The net80211(4) ABI has been changed to allow for improved driver 651 PS-POLL and power-save support. All wireless drivers need to be 652 recompiled to work with the new kernel. 653 65420120913: 655 The random(4) support for the VIA hardware random number 656 generator (`PADLOCK') is no longer enabled unconditionally. 657 Add the padlock_rng device in the custom kernel config if 658 needed. The GENERIC kernels on i386 and amd64 do include the 659 device, so the change only affects the custom kernel 660 configurations. 661 66220120908: 663 The pf(4) packet filter ABI has been changed. pfctl(8) and 664 snmp_pf module need to be recompiled to work with new kernel. 665 66620120828: 667 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 668 to -HEAD. Pools that have empty_bpobj in active state can not be 669 imported read-write with ZFS implementations that do not support 670 this feature. For more information read the zpool-features(5) 671 manual page. 672 67320120727: 674 The sparc64 ZFS loader has been changed to no longer try to auto- 675 detect ZFS providers based on diskN aliases but now requires these 676 to be explicitly listed in the OFW boot-device environment variable. 677 67820120712: 679 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 680 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 681 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 682 68320120712: 684 The following sysctls and tunables have been renamed for consistency 685 with other variables: 686 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 687 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 688 68920120628: 690 The sort utility has been replaced with BSD sort. For now, GNU sort 691 is also available as "gnusort" or the default can be set back to 692 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 693 installed as "bsdsort". 694 69520120611: 696 A new version of ZFS (pool version 5000) has been merged to -HEAD. 697 Starting with this version the old system of ZFS pool versioning 698 is superseded by "feature flags". This concept enables forward 699 compatibility against certain future changes in functionality of ZFS 700 pools. The first read-only compatible "feature flag" for ZFS pools 701 is named "com.delphix:async_destroy". For more information 702 read the new zpool-features(5) manual page. 703 Please refer to the "ZFS notes" section of this file for information 704 on upgrading boot ZFS pools. 705 70620120417: 707 The malloc(3) implementation embedded in libc now uses sources imported 708 as contrib/jemalloc. The most disruptive API change is to 709 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 710 delete it prior to installworld, and optionally re-create it using the 711 new format after rebooting. See malloc.conf(5) for details 712 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 713 NAMESPACE section). 714 71520120328: 716 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 717 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 718 now spelled mips. This is to aid compatibility with third-party 719 software that expects this naming scheme in uname(3). Little-endian 720 settings are unchanged. If you are updating a big-endian mips64 machine 721 from before this change, you may need to set MACHINE_ARCH=mips64 in 722 your environment before the new build system will recognize your machine. 723 72420120306: 725 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 726 platforms. 727 72820120229: 729 Now unix domain sockets behave "as expected" on nullfs(5). Previously 730 nullfs(5) did not pass through all behaviours to the underlying layer, 731 as a result if we bound to a socket on the lower layer we could connect 732 only to the lower path; if we bound to the upper layer we could connect 733 only to the upper path. The new behavior is one can connect to both the 734 lower and the upper paths regardless what layer path one binds to. 735 73620120211: 737 The getifaddrs upgrade path broken with 20111215 has been restored. 738 If you have upgraded in between 20111215 and 20120209 you need to 739 recompile libc again with your kernel. You still need to recompile 740 world to be able to configure CARP but this restriction already 741 comes from 20111215. 742 74320120114: 744 The set_rcvar() function has been removed from /etc/rc.subr. All 745 base and ports rc.d scripts have been updated, so if you have a 746 port installed with a script in /usr/local/etc/rc.d you can either 747 hand-edit the rcvar= line, or reinstall the port. 748 749 An easy way to handle the mass-update of /etc/rc.d: 750 rm /etc/rc.d/* && mergemaster -i 751 75220120109: 753 panic(9) now stops other CPUs in the SMP systems, disables interrupts 754 on the current CPU and prevents other threads from running. 755 This behavior can be reverted using the kern.stop_scheduler_on_panic 756 tunable/sysctl. 757 The new behavior can be incompatible with kern.sync_on_panic. 758 75920111215: 760 The carp(4) facility has been changed significantly. Configuration 761 of the CARP protocol via ifconfig(8) has changed, as well as format 762 of CARP events submitted to devd(8) has changed. See manual pages 763 for more information. The arpbalance feature of carp(4) is currently 764 not supported anymore. 765 766 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 767 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 768 need to be recompiled. 769 77020111122: 771 The acpi_wmi(4) status device /dev/wmistat has been renamed to 772 /dev/wmistat0. 773 77420111108: 775 The option VFS_ALLOW_NONMPSAFE option has been added in order to 776 explicitely support non-MPSAFE filesystems. 777 It is on by default for all supported platform at this present 778 time. 779 78020111101: 781 The broken amd(4) driver has been replaced with esp(4) in the amd64, 782 i386 and pc98 GENERIC kernel configuration files. 783 78420110930: 785 sysinstall has been removed 786 78720110923: 788 The stable/9 branch created in subversion. This corresponds to the 789 RELENG_9 branch in CVS. 790 79120110913: 792 This commit modifies vfs_register() so that it uses a hash 793 calculation to set vfc_typenum, which is enabled by default. 794 The first time a system is booted after this change, the 795 vfc_typenum values will change for all file systems. The 796 main effect of this is a change to the NFS server file handles 797 for file systems that use vfc_typenum in their fsid, such as ZFS. 798 It will, however, prevent vfc_typenum from changing when file 799 systems are loaded in a different order for subsequent reboots. 800 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 801 until you are ready to remount all NFS clients after a reboot. 802 80320110828: 804 Bump the shared library version numbers for libraries that 805 do not use symbol versioning, have changed the ABI compared 806 to stable/8 and which shared library version was not bumped. 807 Done as part of 9.0-RELEASE cycle. 808 80920110815: 810 During the merge of Capsicum features, the fget(9) KPI was modified. 811 This may require the rebuilding of out-of-tree device drivers -- 812 issues have been reported specifically with the nVidia device driver. 813 __FreeBSD_version is bumped to 900041. 814 815 Also, there is a period between 20110811 and 20110814 where the 816 special devices /dev/{stdin,stdout,stderr} did not work correctly. 817 Building world from a kernel during that window may not work. 818 81920110628: 820 The packet filter (pf) code has been updated to OpenBSD 4.5. 821 You need to update userland tools to be in sync with kernel. 822 This update breaks backward compatibility with earlier pfsync(4) 823 versions. Care must be taken when updating redundant firewall setups. 824 82520110608: 826 The following sysctls and tunables are retired on x86 platforms: 827 machdep.hlt_cpus 828 machdep.hlt_logical_cpus 829 The following sysctl is retired: 830 machdep.hyperthreading_allowed 831 The sysctls were supposed to provide a way to dynamically offline and 832 online selected CPUs on x86 platforms, but the implementation has not 833 been reliable especially with SCHED_ULE scheduler. 834 machdep.hyperthreading_allowed tunable is still available to ignore 835 hyperthreading CPUs at OS level. 836 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 837 where X is an APIC ID of a CPU. Be advised, though, that disabling 838 CPUs in non-uniform fashion will result in non-uniform topology and 839 may lead to sub-optimal system performance with SCHED_ULE, which is 840 a default scheduler. 841 84220110607: 843 cpumask_t type is retired and cpuset_t is used in order to describe 844 a mask of CPUs. 845 84620110531: 847 Changes to ifconfig(8) for dynamic address family detection mandate 848 that you are running a kernel of 20110525 or later. Make sure to 849 follow the update procedure to boot a new kernel before installing 850 world. 851 85220110513: 853 Support for sun4v architecture is officially dropped 854 85520110503: 856 Several KPI breaking changes have been committed to the mii(4) layer, 857 the PHY drivers and consequently some Ethernet drivers using mii(4). 858 This means that miibus.ko and the modules of the affected Ethernet 859 drivers need to be recompiled. 860 861 Note to kernel developers: Given that the OUI bit reversion problem 862 was fixed as part of these changes all mii(4) commits related to OUIs, 863 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 864 handling, no longer can be merged verbatim to stable/8 and previous 865 branches. 866 86720110430: 868 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 869 into their kernel configurations along with 'device pci'. 870 87120110427: 872 The default NFS client is now the new NFS client, so fstype "newnfs" 873 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 874 Although mounts via fstype "nfs" will usually work without userland 875 changes, it is recommended that the mount(8) and mount_nfs(8) 876 commands be rebuilt from sources and that a link to mount_nfs called 877 mount_oldnfs be created. The new client is compiled into the 878 kernel with "options NFSCL" and this is needed for diskless root 879 file systems. The GENERIC kernel configs have been changed to use 880 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 881 To use the regular/old client, you can "mount -t oldnfs ...". For 882 a diskless root file system, you must also include a line like: 883 884 vfs.root.mountfrom="oldnfs:" 885 886 in the boot/loader.conf on the root fs on the NFS server to make 887 a diskless root fs use the old client. 888 88920110424: 890 The GENERIC kernels for all architectures now default to the new 891 CAM-based ATA stack. It means that all legacy ATA drivers were 892 removed and replaced by respective CAM drivers. If you are using 893 ATA device names in /etc/fstab or other places, make sure to update 894 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 895 where 'Y's are the sequential numbers starting from zero for each type 896 in order of detection, unless configured otherwise with tunables, 897 see cam(4)). There will be symbolic links created in /dev/ to map 898 old adX devices to the respective adaY. They should provide basic 899 compatibility for file systems mounting in most cases, but they do 900 not support old user-level APIs and do not have respective providers 901 in GEOM. Consider using updated management tools with new device names. 902 903 It is possible to load devices ahci, ata, siis and mvs as modules, 904 but option ATA_CAM should remain in kernel configuration to make ata 905 module work as CAM driver supporting legacy ATA controllers. Device ata 906 still can be used in modular fashion (atacore + ...). Modules atadisk 907 and atapi* are not used and won't affect operation in ATA_CAM mode. 908 Note that to use CAM-based ATA kernel should include CAM devices 909 scbus, pass, da (or explicitly ada), cd and optionally others. All of 910 them are parts of the cam module. 911 912 ataraid(4) functionality is now supported by the RAID GEOM class. 913 To use it you can load geom_raid kernel module and use graid(8) tool 914 for management. Instead of /dev/arX device names, use /dev/raid/rX. 915 916 No kernel config options or code have been removed, so if a problem 917 arises, please report it and optionally revert to the old ATA stack. 918 In order to do it you can remove from the kernel config: 919 options ATA_CAM 920 device ahci 921 device mvs 922 device siis 923 , and instead add back: 924 device atadisk # ATA disk drives 925 device ataraid # ATA RAID drives 926 device atapicd # ATAPI CDROM drives 927 device atapifd # ATAPI floppy drives 928 device atapist # ATAPI tape drives 929 93020110423: 931 The default NFS server has been changed to the new server, which 932 was referred to as the experimental server. If you need to switch 933 back to the old NFS server, you must now put the "-o" option on 934 both the mountd and nfsd commands. This can be done using the 935 mountd_flags and nfs_server_flags rc.conf variables until an 936 update to the rc scripts is committed, which is coming soon. 937 93820110418: 939 The GNU Objective-C runtime library (libobjc), and other Objective-C 940 related components have been removed from the base system. If you 941 require an Objective-C library, please use one of the available ports. 942 94320110331: 944 ath(4) has been split into bus- and device- modules. if_ath contains 945 the HAL, the TX rate control and the network device code. if_ath_pci 946 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 947 contains the AHB glue. Users need to load both if_ath_pci and if_ath 948 in order to use ath on everything else. 949 950 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 951 need to load if_ath and if_ath_pci for ath(4) operation. 952 95320110314: 954 As part of the replacement of sysinstall, the process of building 955 release media has changed significantly. For details, please re-read 956 release(7), which has been updated to reflect the new build process. 957 95820110218: 959 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 960 is the last available version under GPLv2. It brings a number of new 961 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 962 4.1 and SSE 4.2), better support for powerpc64, a number of new 963 directives, and lots of other small improvements. See the ChangeLog 964 file in contrib/binutils for the full details. 965 96620110218: 967 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 968 compliant, and will now use half of hash for authentication. 969 This will break interoperability with all stacks (including all 970 actual FreeBSD versions) who implement 971 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 972 authentication). 973 The only workaround with such peers is to use another HMAC 974 algorithm for IPsec ("phase 2") authentication. 975 97620110207: 977 Remove the uio_yield prototype and symbol. This function has 978 been misnamed since it was introduced and should not be 979 globally exposed with this name. The equivalent functionality 980 is now available using kern_yield(curthread->td_user_pri). 981 The function remains undocumented. 982 98320110112: 984 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 985 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 986 for scalar sysctls is defined but disabled. Code that needs 987 UQUAD to pass the type checking that must compile on older 988 systems where the define is not present can check against 989 __FreeBSD_version >= 900030. 990 991 The system dialog(1) has been replaced with a new version previously 992 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 993 with the previous version, but the libdialog associated with it has 994 a largely incompatible API. As such, the original version of libdialog 995 will be kept temporarily as libodialog, until its base system consumers 996 are replaced or updated. Bump __FreeBSD_version to 900030. 997 99820110103: 999 If you are trying to run make universe on a -stable system, and you get 1000 the following warning: 1001 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1002 unknown. config(8) likely too old." 1003 or something similar to it, then you must upgrade your -stable system 1004 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1005 stable/8) or build the config from the latest stable/8 branch and 1006 install it on your system. 1007 1008 Prior to this date, building a current universe on 8-stable system from 1009 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1010 error in the first kernel build phase. A new config on those old 1011 systems will fix that problem for older versions of -current. 1012 101320101228: 1014 The TCP stack has been modified to allow Khelp modules to interact with 1015 it via helper hook points and store per-connection data in the TCP 1016 control block. Bump __FreeBSD_version to 900029. User space tools that 1017 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1018 be recompiled. 1019 102020101114: 1021 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1022 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1023 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1024 to take advantage of it instead of using custom implementations. This 1025 means that these drivers now no longer unconditionally advertise 1026 support for flow control but only do so if flow control is a selected 1027 media option. This was implemented in the generic support that way in 1028 order to allow flow control to be switched on and off via ifconfig(8) 1029 with the PHY specific default to typically off in order to protect 1030 from unwanted effects. Consequently, if you used flow control with 1031 one of the above mentioned drivers you now need to explicitly enable 1032 it, for example via: 1033 ifconfig bge0 media auto mediaopt flowcontrol 1034 1035 Along with the above mentioned changes generic support for setting 1036 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1037 e1000phy(4) as well as ip1000phy(4) have been converted to take 1038 advantage of it. This means that these drivers now no longer take the 1039 link0 parameter for selecting master mode but the master media option 1040 has to be used instead, for example like in the following: 1041 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1042 1043 Selection of master mode now is also available with all other PHY 1044 drivers supporting 1000baseT. 1045 104620101111: 1047 The TCP stack has received a significant update to add support for 1048 modularised congestion control and generally improve the clarity of 1049 congestion control decisions. Bump __FreeBSD_version to 900025. User 1050 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1051 sockstat) need to be recompiled. 1052 105320101002: 1054 The man(1) utility has been replaced by a new version that no longer 1055 uses /etc/manpath.config. Please consult man.conf(5) for how to 1056 migrate local entries to the new format. 1057 105820100928: 1059 The copyright strings printed by login(1) and sshd(8) at the time of a 1060 new connection have been removed to follow other operating systems and 1061 upstream sshd. 1062 106320100915: 1064 A workaround for a fixed ld bug has been removed in kernel code, 1065 so make sure that your system ld is built from sources after 1066 revision 210245 from 2010-07-19 (r211583 if building head kernel 1067 on stable/8, r211584 for stable/7; both from 2010-08-21). 1068 A symptom of incorrect ld version is different addresses for 1069 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1070 107120100913: 1072 The $ipv6_prefer variable in rc.conf(5) has been split into 1073 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1074 1075 The $ip6addrctl_policy is a variable to choose a pre-defined 1076 address selection policy set by ip6addrctl(8). A value 1077 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1078 default is "AUTO". 1079 1080 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1081 flag (see an entry of 20090926) is set on an interface with no 1082 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1083 security reason. If you want IPv6 link-local address on all 1084 interfaces by default, set this to "YES". 1085 1086 The old ipv6_prefer="YES" is equivalent to 1087 ipv6_activate_all_interfaces="YES" and 1088 ip6addrctl_policy="ipv6_prefer". 1089 109020100913: 1091 DTrace has grown support for userland tracing. Due to this, DTrace is 1092 now i386 and amd64 only. 1093 dtruss(1) is now installed by default on those systems and a new 1094 kernel module is needed for userland tracing: fasttrap. 1095 No changes to your kernel config file are necessary to enable 1096 userland tracing, but you might consider adding 'STRIP=' and 1097 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1098 to have informative userland stack traces in DTrace (ustack). 1099 110020100725: 1101 The acpi_aiboost(4) driver has been removed in favor of the new 1102 aibs(4) driver. You should update your kernel configuration file. 1103 110420100722: 1105 BSD grep has been imported to the base system and it is built by 1106 default. It is completely BSD licensed, highly GNU-compatible, uses 1107 less memory than its GNU counterpart and has a small codebase. 1108 However, it is slower than its GNU counterpart, which is mostly 1109 noticeable for larger searches, for smaller ones it is measurable 1110 but not significant. The reason is complex, the most important factor 1111 is that we lack a modern and efficient regex library and GNU 1112 overcomes this by optimizing the searches internally. Future work 1113 on improving the regex performance is planned, for the meantime, 1114 users that need better performance, can build GNU grep instead by 1115 setting the WITH_GNU_GREP knob. 1116 111720100713: 1118 Due to the import of powerpc64 support, all existing powerpc kernel 1119 configuration files must be updated with a machine directive like this: 1120 machine powerpc powerpc 1121 1122 In addition, an updated config(8) is required to build powerpc kernels 1123 after this change. 1124 112520100713: 1126 A new version of ZFS (version 15) has been merged to -HEAD. 1127 This version uses a python library for the following subcommands: 1128 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1129 For full functionality of these commands the following port must 1130 be installed: sysutils/py-zfs 1131 113220100429: 1133 'vm_page's are now hashed by physical address to an array of mutexes. 1134 Currently this is only used to serialize access to hold_count. Over 1135 time the page queue mutex will be peeled away. This changes the size 1136 of pmap on every architecture. And requires all callers of vm_page_hold 1137 and vm_page_unhold to be updated. 1138 113920100402: 1140 WITH_CTF can now be specified in src.conf (not recommended, there 1141 are some problems with static executables), make.conf (would also 1142 affect ports which do not use GNU make and do not override the 1143 compile targets) or in the kernel config (via "makeoptions 1144 WITH_CTF=yes"). 1145 When WITH_CTF was specified there before this was silently ignored, 1146 so make sure that WITH_CTF is not used in places which could lead 1147 to unwanted behavior. 1148 114920100311: 1150 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1151 to allow 32-bit compatibility on non-x86 platforms. All kernel 1152 configurations on amd64 and ia64 platforms using these options must 1153 be modified accordingly. 1154 115520100113: 1156 The utmp user accounting database has been replaced with utmpx, 1157 the user accounting interface standardized by POSIX. 1158 Unfortunately the semantics of utmp and utmpx don't match, 1159 making it practically impossible to support both interfaces. 1160 The user accounting database is used by tools like finger(1), 1161 last(1), talk(1), w(1) and ac(8). 1162 1163 All applications in the base system use utmpx. This means only 1164 local binaries (e.g. from the ports tree) may still use these 1165 utmp database files. These applications must be rebuilt to make 1166 use of utmpx. 1167 1168 After the system has been upgraded, it is safe to remove the old 1169 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1170 assuming their contents is of no importance anymore. Old wtmp 1171 databases can only be used by last(1) and ac(8) after they have 1172 been converted to the new format using wtmpcvt(1). 1173 117420100108: 1175 Introduce the kernel thread "deadlock resolver" (which can be enabled 1176 via the DEADLKRES option, see NOTES for more details) and the 1177 sleepq_type() function for sleepqueues. 1178 117920091202: 1180 The rc.firewall and rc.firewall6 were unified, and 1181 rc.firewall6 and rc.d/ip6fw were removed. 1182 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1183 variables are obsoleted. Instead, the following new rc 1184 variables are added to rc.d/ipfw: 1185 1186 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1187 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1188 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1189 1190 The meanings correspond to the relevant IPv4 variables. 1191 119220091125: 1193 8.0-RELEASE. 1194 119520091113: 1196 The default terminal emulation for syscons(4) has been changed 1197 from cons25 to xterm on all platforms except pc98. This means 1198 that the /etc/ttys file needs to be updated to ensure correct 1199 operation of applications on the console. 1200 1201 The terminal emulation style can be toggled per window by using 1202 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1203 options can be used to change the compile-time default back to 1204 cons25. 1205 1206 To prevent graphical artifacts, make sure the TERM environment 1207 variable is set to match the terminal emulation that is being 1208 performed by syscons(4). 1209 121020091109: 1211 The layout of the structure ieee80211req_scan_result has changed. 1212 Applications that require wireless scan results (e.g. ifconfig(8)) 1213 from net80211 need to be recompiled. 1214 1215 Applications such as wpa_supplicant(8) may require a full world 1216 build without using NO_CLEAN in order to get synchronized with the 1217 new structure. 1218 121920091025: 1220 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1221 There's one kernel module for each firmware. Adding "device iwnfw" 1222 to the kernel configuration file means including all three firmware 1223 images inside the kernel. If you want to include just the one for 1224 your wireless card, use the devices iwn4965fw, iwn5000fw or 1225 iwn5150fw. 1226 122720090926: 1228 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1229 into rc.d/netif. The changes are the following: 1230 1231 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1232 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1233 Note that both variables need the "inet6" keyword at the head. 1234 1235 Do not set $ipv6_network_interfaces manually if you do not 1236 understand what you are doing. It is not needed in most cases. 1237 1238 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1239 they are obsolete. 1240 1241 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1242 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1243 1244 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1245 all configured interfaces have "inet6 accept_rtadv" in the 1246 $ifconfig_IF_ipv6. These are for backward compatibility. 1247 1248 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1249 functionality of interfaces with no corresponding 1250 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1251 and the default address selection policy of ip6addrctl(8) 1252 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1253 Note that if you want to configure IPv6 functionality on the 1254 disabled interfaces after boot, first you need to clear the flag by 1255 using ifconfig(8) like: 1256 1257 ifconfig em0 inet6 -ifdisabled 1258 1259 If YES, the default address selection policy is set as 1260 IPv6-preferred. 1261 1262 The default value of $ipv6_prefer is NO. 1263 1264 4. If your system need to receive Router Advertisement messages, 1265 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1266 scripts automatically invoke rtsol(8) when the interface becomes 1267 UP. The Router Advertisement messages are used for SLAAC 1268 (State-Less Address AutoConfiguration). 1269 127020090922: 1271 802.11s D3.03 support was committed. This is incompatible with the 1272 previous code, which was based on D3.0. 1273 127420090912: 1275 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1276 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1277 control whether accepting Router Advertisement messages or not. 1278 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1279 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1280 The ifconfig(8) utility now supports these flags. 1281 128220090910: 1283 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1284 mount(8) and -a option for df(1) to see them. 1285 128620090825: 1287 The old tunable hw.bus.devctl_disable has been superseded by 1288 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1289 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1290 is 1000. 1291 129220090813: 1293 Remove the option STOP_NMI. The default action is now to use NMI only 1294 for KDB via the newly introduced function stop_cpus_hard() and 1295 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1296 129720090803: 1298 The stable/8 branch created in subversion. This corresponds to the 1299 RELENG_8 branch in CVS. 1300 130120090719: 1302 Bump the shared library version numbers for all libraries that do not 1303 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1304 __FreeBSD_version to 800105. 1305 130620090714: 1307 Due to changes in the implementation of virtual network stack support, 1308 all network-related kernel modules must be recompiled. As this change 1309 breaks the ABI, bump __FreeBSD_version to 800104. 1310 131120090713: 1312 The TOE interface to the TCP syncache has been modified to remove 1313 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1314 The cxgb driver is the only TOE consumer affected by this change, and 1315 needs to be recompiled along with the kernel. As this change breaks 1316 the ABI, bump __FreeBSD_version to 800103. 1317 131820090712: 1319 Padding has been added to struct tcpcb, sackhint and tcpstat in 1320 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1321 maintaining the ABI. However, this change breaks the ABI, so bump 1322 __FreeBSD_version to 800102. User space tools that rely on the size of 1323 any of these structs (e.g. sockstat) need to be recompiled. 1324 132520090630: 1326 The NFS_LEGACYRPC option has been removed along with the old kernel 1327 RPC implementation that this option selected. Kernel configurations 1328 may need to be adjusted. 1329 133020090629: 1331 The network interface device nodes at /dev/net/<interface> have been 1332 removed. All ioctl operations can be performed the normal way using 1333 routing sockets. The kqueue functionality can generally be replaced 1334 with routing sockets. 1335 133620090628: 1337 The documentation from the FreeBSD Documentation Project (Handbook, 1338 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1339 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1340 134120090624: 1342 The ABI of various structures related to the SYSV IPC API have been 1343 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1344 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1345 800100. 1346 134720090622: 1348 Layout of struct vnet has changed as routing related variables were 1349 moved to their own Vimage module. Modules need to be recompiled. Bump 1350 __FreeBSD_version to 800099. 1351 135220090619: 1353 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1354 respectively. As long as no more than 16 groups per process are used, 1355 no changes should be visible. When more than 16 groups are used, old 1356 binaries may fail if they call getgroups() or getgrouplist() with 1357 statically sized storage. Recompiling will work around this, but 1358 applications should be modified to use dynamically allocated storage 1359 for group arrays as POSIX.1-2008 does not cap an implementation's 1360 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1361 1362 NFS and portalfs mounts may also be affected as the list of groups is 1363 truncated to 16. Users of NFS who use more than 16 groups, should 1364 take care that negative group permissions are not used on the exported 1365 file systems as they will not be reliable unless a GSSAPI based 1366 authentication method is used. 1367 136820090616: 1369 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1370 option compiles in the support for adaptive spinning for lockmgrs 1371 which want to enable it. The lockinit() function now accepts the flag 1372 LK_ADAPTIVE in order to make the lock object subject to adaptive 1373 spinning when both held in write and read mode. 1374 137520090613: 1376 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1377 changed. User applications that use this ioctl need to be rebuilt. 1378 137920090611: 1380 The layout of struct thread has changed. Kernel and modules need to 1381 be rebuilt. 1382 138320090608: 1384 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1385 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1386 138720090602: 1388 window(1) has been removed from the base system. It can now be 1389 installed from ports. The port is called misc/window. 1390 139120090601: 1392 The way we are storing and accessing `routing table' entries has 1393 changed. Programs reading the FIB, like netstat, need to be 1394 re-compiled. 1395 139620090601: 1397 A new netisr implementation has been added for FreeBSD 8. Network 1398 file system modules, such as igmp, ipdivert, and others, should be 1399 rebuilt. 1400 Bump __FreeBSD_version to 800096. 1401 140220090530: 1403 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1404 more valid. 1405 140620090530: 1407 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1408 Bump __FreeBSD_version to 800094. 1409 141020090529: 1411 Add mnt_xflag field to 'struct mount'. File system modules need to be 1412 rebuilt. 1413 Bump __FreeBSD_version to 800093. 1414 141520090528: 1416 The compiling option ADAPTIVE_SX has been retired while it has been 1417 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1418 The KPI for sx_init_flags() changes as accepting flags: 1419 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1420 been introduced in order to handle the reversed logic. 1421 Bump __FreeBSD_version to 800092. 1422 142320090527: 1424 Add support for hierarchical jails. Remove global securelevel. 1425 Bump __FreeBSD_version to 800091. 1426 142720090523: 1428 The layout of struct vnet_net has changed, therefore modules 1429 need to be rebuilt. 1430 Bump __FreeBSD_version to 800090. 1431 143220090523: 1433 The newly imported zic(8) produces a new format in the output. Please 1434 run tzsetup(8) to install the newly created data to /etc/localtime. 1435 143620090520: 1437 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1438 hw.usb.* and is now consistent again with previous releases. 1439 144020090520: 1441 802.11 monitor mode support was revised and driver api's were changed. 1442 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1443 of DLT_IEEE802_11. No user-visible data structures were changed but 1444 applications that use DLT_IEEE802_11 may require changes. 1445 Bump __FreeBSD_version to 800088. 1446 144720090430: 1448 The layout of the following structs has changed: sysctl_oid, 1449 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1450 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1451 panics may be experienced. World rebuild is required for 1452 correctly checking networking state from userland. 1453 Bump __FreeBSD_version to 800085. 1454 145520090429: 1456 MLDv2 and Source-Specific Multicast (SSM) have been merged 1457 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1458 The implementation of SSM within FreeBSD's IPv6 stack closely 1459 follows the IPv4 implementation. 1460 1461 For kernel developers: 1462 1463 * The most important changes are that the ip6_output() and 1464 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1465 and this lock has been downgraded to a non-recursive mutex. 1466 1467 * As with the changes to the IPv4 stack to support SSM, filtering 1468 of inbound multicast traffic must now be performed by transport 1469 protocols within the IPv6 stack. This does not apply to TCP and 1470 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1471 1472 * The KPIs used by IPv6 multicast are similar to those used by 1473 the IPv4 stack, with the following differences: 1474 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1475 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1476 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1477 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1478 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1479 for MLDv1 have an additional 'timer' argument which is used to 1480 jitter the initial membership report for the solicited-node 1481 multicast membership on-link. 1482 * This is not strictly needed for MLDv2, which already jitters 1483 its report transmissions. However, the 'timer' argument is 1484 preserved in case MLDv1 is active on the interface. 1485 1486 * The KAME linked-list based IPv6 membership implementation has 1487 been refactored to use a vector similar to that used by the IPv4 1488 stack. 1489 Code which maintains a list of its own multicast memberships 1490 internally, e.g. carp, has been updated to reflect the new 1491 semantics. 1492 1493 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1494 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1495 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1496 implementation constraint which needs to be addressed in HEAD. 1497 1498 For application developers: 1499 1500 * The changes are broadly similar to those made for the IPv4 1501 stack. 1502 1503 * The use of IPv4 and IPv6 multicast socket options on the same 1504 socket, using mapped addresses, HAS NOT been tested or supported. 1505 1506 * There are a number of issues with the implementation of various 1507 IPv6 multicast APIs which need to be resolved in the API surface 1508 before the implementation is fully compatible with KAME userland 1509 use, and these are mostly to do with interface index treatment. 1510 1511 * The literature available discusses the use of either the delta / ASM 1512 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1513 using setsourcefilter(3)/getsourcefilter(3). For more information 1514 please refer to RFC 3768, 'Socket Interface Extensions for 1515 Multicast Source Filters'. 1516 1517 * Applications which use the published RFC 3678 APIs should be fine. 1518 1519 For systems administrators: 1520 1521 * The mtest(8) utility has been refactored to support IPv6, in 1522 addition to IPv4. Interface addresses are no longer accepted 1523 as arguments, their names must be used instead. The utility 1524 will map the interface name to its first IPv4 address as 1525 returned by getifaddrs(3). 1526 1527 * The ifmcstat(8) utility has also been updated to print the MLDv2 1528 endpoint state and source filter lists via sysctl(3). 1529 1530 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1531 loopback of IPv6 multicast datagrams by default; it defaults to 1 1532 to preserve the existing behaviour. Disabling multicast loopback is 1533 recommended for optimal system performance. 1534 1535 * The IPv6 MROUTING code has been changed to examine this sysctl 1536 instead of attempting to perform a group lookup before looping 1537 back forwarded datagrams. 1538 1539 Bump __FreeBSD_version to 800084. 1540 154120090422: 1542 Implement low-level Bluetooth HCI API. 1543 Bump __FreeBSD_version to 800083. 1544 154520090419: 1546 The layout of struct malloc_type, used by modules to register new 1547 memory allocation types, has changed. Most modules will need to 1548 be rebuilt or panics may be experienced. 1549 Bump __FreeBSD_version to 800081. 1550 155120090415: 1552 Anticipate overflowing inp_flags - add inp_flags2. 1553 This changes most offsets in inpcb, so checking v4 connection 1554 state will require a world rebuild. 1555 Bump __FreeBSD_version to 800080. 1556 155720090415: 1558 Add an llentry to struct route and struct route_in6. Modules 1559 embedding a struct route will need to be recompiled. 1560 Bump __FreeBSD_version to 800079. 1561 156220090414: 1563 The size of rt_metrics_lite and by extension rtentry has changed. 1564 Networking administration apps will need to be recompiled. 1565 The route command now supports show as an alias for get, weighting 1566 of routes, sticky and nostick flags to alter the behavior of stateful 1567 load balancing. 1568 Bump __FreeBSD_version to 800078. 1569 157020090408: 1571 Do not use Giant for kbdmux(4) locking. This is wrong and 1572 apparently causing more problems than it solves. This will 1573 re-open the issue where interrupt handlers may race with 1574 kbdmux(4) in polling mode. Typical symptoms include (but 1575 not limited to) duplicated and/or missing characters when 1576 low level console functions (such as gets) are used while 1577 interrupts are enabled (for example geli password prompt, 1578 mountroot prompt etc.). Disabling kbdmux(4) may help. 1579 158020090407: 1581 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1582 kernel modules referencing any of the above need to be recompiled. 1583 Bump __FreeBSD_version to 800075. 1584 158520090320: 1586 GEOM_PART has become the default partition slicer for storage devices, 1587 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1588 introduces some changes: 1589 1590 MSDOS/EBR: the devices created from MSDOS extended partition entries 1591 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1592 to devices with offset-based names. fstabs may need to be modified. 1593 1594 BSD: the "geometry does not match label" warning is harmless in most 1595 cases but it points to problems in file system misalignment with 1596 disk geometry. The "c" partition is now implicit, covers the whole 1597 top-level drive and cannot be (mis)used by users. 1598 1599 General: Kernel dumps are now not allowed to be written to devices 1600 whose partition types indicate they are meant to be used for file 1601 systems (or, in case of MSDOS partitions, as something else than 1602 the "386BSD" type). 1603 1604 Most of these changes date approximately from 200812. 1605 160620090319: 1607 The uscanner(4) driver has been removed from the kernel. This follows 1608 Linux removing theirs in 2.6 and making libusb the default interface 1609 (supported by sane). 1610 161120090319: 1612 The multicast forwarding code has been cleaned up. netstat(1) 1613 only relies on KVM now for printing bandwidth upcall meters. 1614 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1615 ip6_mroute_mod respectively. The config(5) options for statically 1616 compiling this code remain the same, i.e. 'options MROUTING'. 1617 161820090315: 1619 Support for the IFF_NEEDSGIANT network interface flag has been 1620 removed, which means that non-MPSAFE network device drivers are no 1621 longer supported. In particular, if_ar, if_sr, and network device 1622 drivers from the old (legacy) USB stack can no longer be built or 1623 used. 1624 162520090313: 1626 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1627 a bunch of new language catalog files have also been added. 1628 This means that some common libc messages are now localized and 1629 they depend on the LC_MESSAGES environmental variable. 1630 163120090313: 1632 The k8temp(4) driver has been renamed to amdtemp(4) since 1633 support for Family 10 and Family 11 CPU families was added. 1634 163520090309: 1636 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1637 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1638 1639 For kernel developers, the most important changes are that the 1640 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1641 and this lock has been downgraded to a non-recursive mutex. 1642 1643 Transport protocols (UDP, Raw IP) are now responsible for filtering 1644 inbound multicast traffic according to group membership and source 1645 filters. The imo_multicast_filter() KPI exists for this purpose. 1646 Transports which do not use multicast (SCTP, TCP) already reject 1647 multicast by default. Forwarding and receive performance may improve 1648 as a mutex acquisition is no longer needed in the ip_input() 1649 low-level input path. in_addmulti() and in_delmulti() are shimmed 1650 to new KPIs which exist to support SSM in-kernel. 1651 1652 For application developers, it is recommended that loopback of 1653 multicast datagrams be disabled for best performance, as this 1654 will still cause the lock to be taken for each looped-back 1655 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1656 be tuned to 0 to disable loopback by default; it defaults to 1 1657 to preserve the existing behaviour. 1658 1659 For systems administrators, to obtain best performance with 1660 multicast reception and multiple groups, it is always recommended 1661 that a card with a suitably precise hash filter is used. Hash 1662 collisions will still result in the lock being taken within the 1663 transport protocol input path to check group membership. 1664 1665 If deploying FreeBSD in an environment with IGMP snooping switches, 1666 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1667 enabled; this forces 224.0.0.0/24 group membership to be announced 1668 via IGMP. 1669 1670 The size of 'struct igmpstat' has changed; netstat needs to be 1671 recompiled to reflect this. 1672 Bump __FreeBSD_version to 800070. 1673 167420090309: 1675 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1676 updated to use it. This requires a buildworld/installworld in order to 1677 update the library and dependencies (usbconfig, etc). Its advisable to 1678 rebuild all ports which uses libusb. More specific directions are given 1679 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1680 libusb are no longer required and can be removed. 1681 168220090302: 1683 A workaround is committed to allow the creation of System V shared 1684 memory segment of size > 2 GB on the 64-bit architectures. 1685 Due to a limitation of the existing ABI, the shm_segsz member 1686 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1687 wrong for large segments. Note that limits must be explicitly 1688 raised to allow such segments to be created. 1689 169020090301: 1691 The layout of struct ifnet has changed, requiring a rebuild of all 1692 network device driver modules. 1693 169420090227: 1695 The /dev handling for the new USB stack has changed, a 1696 buildworld/installworld is required for libusb20. 1697 169820090223: 1699 The new USB2 stack has now been permanently moved in and all kernel and 1700 module names reverted to their previous values (eg, usb, ehci, ohci, 1701 ums, ...). The old usb stack can be compiled in by prefixing the name 1702 with the letter 'o', the old usb modules have been removed. 1703 Updating entry 20090216 for xorg and 20090215 for libmap may still 1704 apply. 1705 170620090217: 1707 The rc.conf(5) option if_up_delay has been renamed to 1708 defaultroute_delay to better reflect its purpose. If you have 1709 customized this setting in /etc/rc.conf you need to update it to 1710 use the new name. 1711 171220090216: 1713 xorg 7.4 wants to configure its input devices via hald which does not 1714 yet work with USB2. If the keyboard/mouse does not work in xorg then 1715 add 1716 Option "AllowEmptyInput" "off" 1717 to your ServerLayout section. This will cause X to use the configured 1718 kbd and mouse sections from your xorg.conf. 1719 172020090215: 1721 The GENERIC kernels for all architectures now default to the new USB2 1722 stack. No kernel config options or code have been removed so if a 1723 problem arises please report it and optionally revert to the old USB 1724 stack. If you are loading USB kernel modules or have a custom kernel 1725 that includes GENERIC then ensure that usb names are also changed over, 1726 eg uftdi -> usb2_serial_ftdi. 1727 1728 Older programs linked against the ports libusb 0.1 need to be 1729 redirected to the new stack's libusb20. /etc/libmap.conf can 1730 be used for this: 1731 # Map old usb library to new one for usb2 stack 1732 libusb-0.1.so.8 libusb20.so.1 1733 173420090209: 1735 All USB ethernet devices now attach as interfaces under the name ueN 1736 (eg. ue0). This is to provide a predictable name as vendors often 1737 change usb chipsets in a product without notice. 1738 173920090203: 1740 The ichsmb(4) driver has been changed to require SMBus slave 1741 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1742 All of the other SMBus controller drivers require left-justified 1743 slave addresses, so this change makes all the drivers provide the 1744 same interface. 1745 174620090201: 1747 INET6 statistics (struct ip6stat) was updated. 1748 netstat(1) needs to be recompiled. 1749 175020090119: 1751 NTFS has been removed from GENERIC kernel on amd64 to match 1752 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1753 will load ntfs.ko module automatically when NTFS support is 1754 actually needed, unless ntfs.ko is not installed or security 1755 level prohibits loading kernel modules. If either is the case, 1756 "options NTFS" has to be added into kernel config. 1757 175820090115: 1759 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1760 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1761 800061. User space tools that rely on the size of struct tcpcb in 1762 tcp_var.h (e.g. sockstat) need to be recompiled. 1763 176420081225: 1765 ng_tty(4) module updated to match the new TTY subsystem. 1766 Due to API change, user-level applications must be updated. 1767 New API support added to mpd5 CVS and expected to be present 1768 in next mpd5.3 release. 1769 177020081219: 1771 With __FreeBSD_version 800060 the makefs tool is part of 1772 the base system (it was a port). 1773 177420081216: 1775 The afdata and ifnet locks have been changed from mutexes to 1776 rwlocks, network modules will need to be re-compiled. 1777 177820081214: 1779 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1780 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1781 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1782 architecture and 40 bytes on 64-bit architecture. The userland 1783 applications "arp" and "ndp" have been updated accordingly. 1784 The output from "netstat -r" shows only routing entries and 1785 none of the L2 information. 1786 178720081130: 1788 __FreeBSD_version 800057 marks the switchover from the 1789 binary ath hal to source code. Users must add the line: 1790 1791 options AH_SUPPORT_AR5416 1792 1793 to their kernel config files when specifying: 1794 1795 device ath_hal 1796 1797 The ath_hal module no longer exists; the code is now compiled 1798 together with the driver in the ath module. It is now 1799 possible to tailor chip support (i.e. reduce the set of chips 1800 and thereby the code size); consult ath_hal(4) for details. 1801 180220081121: 1803 __FreeBSD_version 800054 adds memory barriers to 1804 <machine/atomic.h>, new interfaces to ifnet to facilitate 1805 multiple hardware transmit queues for cards that support 1806 them, and a lock-less ring-buffer implementation to 1807 enable drivers to more efficiently manage queueing of 1808 packets. 1809 181020081117: 1811 A new version of ZFS (version 13) has been merged to -HEAD. 1812 This version has zpool attribute "listsnapshots" off by 1813 default, which means "zfs list" does not show snapshots, 1814 and is the same as Solaris behavior. 1815 181620081028: 1817 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1818 181920081009: 1820 The uhci, ohci, ehci and slhci USB Host controller drivers have 1821 been put into separate modules. If you load the usb module 1822 separately through loader.conf you will need to load the 1823 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1824 controller add the following to loader.conf: 1825 1826 uhci_load="YES" 1827 ehci_load="YES" 1828 182920081009: 1830 The ABI used by the PMC toolset has changed. Please keep 1831 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1832 sync. 1833 183420081009: 1835 atapci kernel module now includes only generic PCI ATA 1836 driver. AHCI driver moved to ataahci kernel module. 1837 All vendor-specific code moved into separate kernel modules: 1838 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1839 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1840 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1841 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1842 184320080820: 1844 The TTY subsystem of the kernel has been replaced by a new 1845 implementation, which provides better scalability and an 1846 improved driver model. Most common drivers have been migrated to 1847 the new TTY subsystem, while others have not. The following 1848 drivers have not yet been ported to the new TTY layer: 1849 1850 PCI/ISA: 1851 cy, digi, rc, rp, sio 1852 1853 USB: 1854 ubser, ucycom 1855 1856 Line disciplines: 1857 ng_h4, ng_tty, ppp, sl, snp 1858 1859 Adding these drivers to your kernel configuration file shall 1860 cause compilation to fail. 1861 186220080818: 1863 ntpd has been upgraded to 4.2.4p5. 1864 186520080801: 1866 OpenSSH has been upgraded to 5.1p1. 1867 1868 For many years, FreeBSD's version of OpenSSH preferred DSA 1869 over RSA for host and user authentication keys. With this 1870 upgrade, we've switched to the vendor's default of RSA over 1871 DSA. This may cause upgraded clients to warn about unknown 1872 host keys even for previously known hosts. Users should 1873 follow the usual procedure for verifying host keys before 1874 accepting the RSA key. 1875 1876 This can be circumvented by setting the "HostKeyAlgorithms" 1877 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1878 command line. 1879 1880 Please note that the sequence of keys offered for 1881 authentication has been changed as well. You may want to 1882 specify IdentityFile in a different order to revert this 1883 behavior. 1884 188520080713: 1886 The sio(4) driver has been removed from the i386 and amd64 1887 kernel configuration files. This means uart(4) is now the 1888 default serial port driver on those platforms as well. 1889 1890 To prevent collisions with the sio(4) driver, the uart(4) driver 1891 uses different names for its device nodes. This means the 1892 onboard serial port will now most likely be called "ttyu0" 1893 instead of "ttyd0". You may need to reconfigure applications to 1894 use the new device names. 1895 1896 When using the serial port as a boot console, be sure to update 1897 /boot/device.hints and /etc/ttys before booting the new kernel. 1898 If you forget to do so, you can still manually specify the hints 1899 at the loader prompt: 1900 1901 set hint.uart.0.at="isa" 1902 set hint.uart.0.port="0x3F8" 1903 set hint.uart.0.flags="0x10" 1904 set hint.uart.0.irq="4" 1905 boot -s 1906 190720080609: 1908 The gpt(8) utility has been removed. Use gpart(8) to partition 1909 disks instead. 1910 191120080603: 1912 The version that Linuxulator emulates was changed from 2.4.2 1913 to 2.6.16. If you experience any problems with Linux binaries 1914 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1915 if it fixes the problem contact emulation mailing list. 1916 191720080525: 1918 ISDN4BSD (I4B) was removed from the src tree. You may need to 1919 update a your kernel configuration and remove relevant entries. 1920 192120080509: 1922 I have checked in code to support multiple routing tables. 1923 See the man pages setfib(1) and setfib(2). 1924 This is a hopefully backwards compatible version, 1925 but to make use of it you need to compile your kernel 1926 with options ROUTETABLES=2 (or more up to 16). 1927 192820080420: 1929 The 802.11 wireless support was redone to enable multi-bss 1930 operation on devices that are capable. The underlying device 1931 is no longer used directly but instead wlanX devices are 1932 cloned with ifconfig. This requires changes to rc.conf files. 1933 For example, change: 1934 ifconfig_ath0="WPA DHCP" 1935 to 1936 wlans_ath0=wlan0 1937 ifconfig_wlan0="WPA DHCP" 1938 see rc.conf(5) for more details. In addition, mergemaster of 1939 /etc/rc.d is highly recommended. Simultaneous update of userland 1940 and kernel wouldn't hurt either. 1941 1942 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1943 modules were merged into the base wlan module. All references 1944 to these modules (e.g. in kernel config files) must be removed. 1945 194620080408: 1947 psm(4) has gained write(2) support in native operation level. 1948 Arbitrary commands can be written to /dev/psm%d and status can 1949 be read back from it. Therefore, an application is responsible 1950 for status validation and error recovery. It is a no-op in 1951 other operation levels. 1952 195320080312: 1954 Support for KSE threading has been removed from the kernel. To 1955 run legacy applications linked against KSE libmap.conf may 1956 be used. The following libmap.conf may be used to ensure 1957 compatibility with any prior release: 1958 1959 libpthread.so.1 libthr.so.1 1960 libpthread.so.2 libthr.so.2 1961 libkse.so.3 libthr.so.3 1962 196320080301: 1964 The layout of struct vmspace has changed. This affects libkvm 1965 and any executables that link against libkvm and use the 1966 kvm_getprocs() function. In particular, but not exclusively, 1967 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1968 The effects are minimal, but it's advisable to upgrade world 1969 nonetheless. 1970 197120080229: 1972 The latest em driver no longer has support in it for the 1973 82575 adapter, this is now moved to the igb driver. The 1974 split was done to make new features that are incompatible 1975 with older hardware easier to do. 1976 197720080220: 1978 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1979 likewise the kernel option is now GEOM_LINUX_LVM. 1980 198120080211: 1982 The default NFS mount mode has changed from UDP to TCP for 1983 increased reliability. If you rely on (insecurely) NFS 1984 mounting across a firewall you may need to update your 1985 firewall rules. 1986 198720080208: 1988 Belatedly note the addition of m_collapse for compacting 1989 mbuf chains. 1990 199120080126: 1992 The fts(3) structures have been changed to use adequate 1993 integer types for their members and so to be able to cope 1994 with huge file trees. The old fts(3) ABI is preserved 1995 through symbol versioning in libc, so third-party binaries 1996 using fts(3) should still work, although they will not take 1997 advantage of the extended types. At the same time, some 1998 third-party software might fail to build after this change 1999 due to unportable assumptions made in its source code about 2000 fts(3) structure members. Such software should be fixed 2001 by its vendor or, in the worst case, in the ports tree. 2002 FreeBSD_version 800015 marks this change for the unlikely 2003 case that a portable fix is impossible. 2004 200520080123: 2006 To upgrade to -current after this date, you must be running 2007 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2008 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2009 201020071128: 2011 The ADAPTIVE_GIANT kernel option has been retired because its 2012 functionality is the default now. 2013 201420071118: 2015 The AT keyboard emulation of sunkbd(4) has been turned on 2016 by default. In order to make the special symbols of the Sun 2017 keyboards driven by sunkbd(4) work under X these now have 2018 to be configured the same way as Sun USB keyboards driven 2019 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2020 2021 Option "XkbLayout" "us" 2022 Option "XkbRules" "xorg" 2023 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2024 202520071024: 2026 It has been decided that it is desirable to provide ABI 2027 backwards compatibility to the FreeBSD 4/5/6 versions of the 2028 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2029 broken with the introduction of PCI domain support (see the 2030 20070930 entry). Unfortunately, this required the ABI of 2031 PCIOCGETCONF to be broken again in order to be able to 2032 provide backwards compatibility to the old version of that 2033 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2034 again. As for prominent ports this affects neither pciutils 2035 nor xorg-server this time, the hal port needs to be rebuilt 2036 however. 2037 203820071020: 2039 The misnamed kthread_create() and friends have been renamed 2040 to kproc_create() etc. Many of the callers already 2041 used kproc_start().. 2042 I will return kthread_create() and friends in a while 2043 with implementations that actually create threads, not procs. 2044 Renaming corresponds with version 800002. 2045 204620071010: 2047 RELENG_7 branched. 2048 2049COMMON ITEMS: 2050 2051 General Notes 2052 ------------- 2053 Avoid using make -j when upgrading. While generally safe, there are 2054 sometimes problems using -j to upgrade. If your upgrade fails with 2055 -j, please try again without -j. From time to time in the past there 2056 have been problems using -j with buildworld and/or installworld. This 2057 is especially true when upgrading between "distant" versions (eg one 2058 that cross a major release boundary or several minor releases, or when 2059 several months have passed on the -current branch). 2060 2061 Sometimes, obscure build problems are the result of environment 2062 poisoning. This can happen because the make utility reads its 2063 environment when searching for values for global variables. To run 2064 your build attempts in an "environmental clean room", prefix all make 2065 commands with 'env -i '. See the env(1) manual page for more details. 2066 2067 When upgrading from one major version to another it is generally best 2068 to upgrade to the latest code in the currently installed branch first, 2069 then do an upgrade to the new branch. This is the best-tested upgrade 2070 path, and has the highest probability of being successful. Please try 2071 this approach before reporting problems with a major version upgrade. 2072 2073 When upgrading a live system, having a root shell around before 2074 installing anything can help undo problems. Not having a root shell 2075 around can lead to problems if pam has changed too much from your 2076 starting point to allow continued authentication after the upgrade. 2077 2078 ZFS notes 2079 --------- 2080 When upgrading the boot ZFS pool to a new version, always follow 2081 these two steps: 2082 2083 1.) recompile and reinstall the ZFS boot loader and boot block 2084 (this is part of "make buildworld" and "make installworld") 2085 2086 2.) update the ZFS boot block on your boot drive 2087 2088 The following example updates the ZFS boot block on the first 2089 partition (freebsd-boot) of a GPT partitioned drive ad0: 2090 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2091 2092 Non-boot pools do not need these updates. 2093 2094 To build a kernel 2095 ----------------- 2096 If you are updating from a prior version of FreeBSD (even one just 2097 a few days old), you should follow this procedure. It is the most 2098 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2099 2100 make kernel-toolchain 2101 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2102 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2103 2104 To test a kernel once 2105 --------------------- 2106 If you just want to boot a kernel once (because you are not sure 2107 if it works, or if you want to boot a known bad kernel to provide 2108 debugging information) run 2109 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2110 nextboot -k testkernel 2111 2112 To just build a kernel when you know that it won't mess you up 2113 -------------------------------------------------------------- 2114 This assumes you are already running a CURRENT system. Replace 2115 ${arch} with the architecture of your machine (e.g. "i386", 2116 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2117 2118 cd src/sys/${arch}/conf 2119 config KERNEL_NAME_HERE 2120 cd ../compile/KERNEL_NAME_HERE 2121 make depend 2122 make 2123 make install 2124 2125 If this fails, go to the "To build a kernel" section. 2126 2127 To rebuild everything and install it on the current system. 2128 ----------------------------------------------------------- 2129 # Note: sometimes if you are running current you gotta do more than 2130 # is listed here if you are upgrading from a really old current. 2131 2132 <make sure you have good level 0 dumps> 2133 make buildworld 2134 make kernel KERNCONF=YOUR_KERNEL_HERE 2135 [1] 2136 <reboot in single user> [3] 2137 mergemaster -p [5] 2138 make installworld 2139 mergemaster -i [4] 2140 make delete-old [6] 2141 <reboot> 2142 2143 To cross-install current onto a separate partition 2144 -------------------------------------------------- 2145 # In this approach we use a separate partition to hold 2146 # current's root, 'usr', and 'var' directories. A partition 2147 # holding "/", "/usr" and "/var" should be about 2GB in 2148 # size. 2149 2150 <make sure you have good level 0 dumps> 2151 <boot into -stable> 2152 make buildworld 2153 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2154 <maybe newfs current's root partition> 2155 <mount current's root partition on directory ${CURRENT_ROOT}> 2156 make installworld DESTDIR=${CURRENT_ROOT} 2157 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2158 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2159 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2160 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2161 <reboot into current> 2162 <do a "native" rebuild/install as described in the previous section> 2163 <maybe install compatibility libraries from ports/misc/compat*> 2164 <reboot> 2165 2166 2167 To upgrade in-place from stable to current 2168 ---------------------------------------------- 2169 <make sure you have good level 0 dumps> 2170 make buildworld [9] 2171 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2172 [1] 2173 <reboot in single user> [3] 2174 mergemaster -p [5] 2175 make installworld 2176 mergemaster -i [4] 2177 make delete-old [6] 2178 <reboot> 2179 2180 Make sure that you've read the UPDATING file to understand the 2181 tweaks to various things you need. At this point in the life 2182 cycle of current, things change often and you are on your own 2183 to cope. The defaults can also change, so please read ALL of 2184 the UPDATING entries. 2185 2186 Also, if you are tracking -current, you must be subscribed to 2187 freebsd-current@freebsd.org. Make sure that before you update 2188 your sources that you have read and understood all the recent 2189 messages there. If in doubt, please track -stable which has 2190 much fewer pitfalls. 2191 2192 [1] If you have third party modules, such as vmware, you 2193 should disable them at this point so they don't crash your 2194 system on reboot. 2195 2196 [3] From the bootblocks, boot -s, and then do 2197 fsck -p 2198 mount -u / 2199 mount -a 2200 cd src 2201 adjkerntz -i # if CMOS is wall time 2202 Also, when doing a major release upgrade, it is required that 2203 you boot into single user mode to do the installworld. 2204 2205 [4] Note: This step is non-optional. Failure to do this step 2206 can result in a significant reduction in the functionality of the 2207 system. Attempting to do it by hand is not recommended and those 2208 that pursue this avenue should read this file carefully, as well 2209 as the archives of freebsd-current and freebsd-hackers mailing lists 2210 for potential gotchas. The -U option is also useful to consider. 2211 See mergemaster(8) for more information. 2212 2213 [5] Usually this step is a noop. However, from time to time 2214 you may need to do this if you get unknown user in the following 2215 step. It never hurts to do it all the time. You may need to 2216 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2217 install) after the buildworld before this step if you last updated 2218 from current before 20130425 or from -stable before 20130430. 2219 2220 [6] This only deletes old files and directories. Old libraries 2221 can be deleted by "make delete-old-libs", but you have to make 2222 sure that no program is using those libraries anymore. 2223 2224 [8] In order to have a kernel that can run the 4.x binaries needed to 2225 do an installworld, you must include the COMPAT_FREEBSD4 option in 2226 your kernel. Failure to do so may leave you with a system that is 2227 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2228 required to run the 5.x binaries on more recent kernels. And so on 2229 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2230 2231 Make sure that you merge any new devices from GENERIC since the 2232 last time you updated your kernel config file. 2233 2234 [9] When checking out sources, you must include the -P flag to have 2235 cvs prune empty directories. 2236 2237 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2238 "?=" instead of the "=" assignment operator, so that buildworld can 2239 override the CPUTYPE if it needs to. 2240 2241 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2242 not on the command line, or in /etc/make.conf. buildworld will 2243 warn if it is improperly defined. 2244FORMAT: 2245 2246This file contains a list, in reverse chronological order, of major 2247breakages in tracking -current. It is not guaranteed to be a complete 2248list of such breakages, and only contains entries since October 10, 2007. 2249If you need to see UPDATING entries from before that date, you will need 2250to fetch an UPDATING file from an older FreeBSD release. 2251 2252Copyright information: 2253 2254Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2255 2256Redistribution, publication, translation and use, with or without 2257modification, in full or in part, in any form or format of this 2258document are permitted without further permission from the author. 2259 2260THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2261IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2262WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2263DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2264INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2265(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2266SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2267HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2268STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2269IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2270POSSIBILITY OF SUCH DAMAGE. 2271 2272Contact Warner Losh if you have any questions about your use of 2273this document. 2274 2275$FreeBSD: releng/10.1/UPDATING 286905 2015-08-18 20:21:45Z delphij $ 2276