UPDATING revision 287145
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 1920150825: p2 FreeBSD-SA-15:22.openssh 20 FreeBSD-EN-15:15.pkg 21 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 22 23 Fix insufficient check of unsupported pkg(7) signature methods. 24 [EN-15:15] 25 2620150818: p1 FreeBSD-SA-15:20.expat 27 FreeBSD-EN-15:11.toolchain 28 FreeBSD-EN-15:12.netstat 29 FreeBSD-EN-15:13.vidcontrol 30 31 Fix multiple integer overflows in expat (libbsdxml) XML parser. 32 [SA-15:20] 33 34 Fix make(1) syntax errors when upgrading from 9.x and earlier. 35 [EN-15:11] 36 37 Fix incorrect netstat(1) data handling on 32-bit systems. 38 [EN-15:12] 39 40 Allow size argument to vidcontrol(1) for syscons(4). [EN-15:13] 41 4220150813: 43 10.2-RELEASE. 44 4520150703: 46 The default Unbound configuration now enables remote control 47 using a local socket. Users who have already enabled the 48 local_unbound service should regenerate their configuration 49 by running "service local_unbound setup" as root. 50 5120150624: 52 An additional fix for the issue described in the 20150614 sendmail 53 entry below has been been committed in revision 284786. 54 5520150615: 56 The fix for the issue described in the 20150614 sendmail entry 57 below has been been committed in revision 284485. The work 58 around described in that entry is no longer needed unless the 59 default setting is overridden by a confDH_PARAMETERS configuration 60 setting of '5' or pointing to a 512 bit DH parameter file. 61 6220150614: 63 The import of openssl to address the FreeBSD-SA-15:10.openssl 64 security advisory includes a change which rejects handshakes 65 with DH parameters below 768 bits. sendmail releases prior 66 to 8.15.2 (not yet released), defaulted to a 512 bit 67 DH parameter setting for client connections. To work around 68 this interoperability, sendmail can be configured to use a 69 2048 bit DH parameter by: 70 71 1. Edit /etc/mail/`hostname`.mc 72 2. If a setting for confDH_PARAMETERS does not exist or 73 exists and is set to a string beginning with '5', 74 replace it with '2'. 75 3. If a setting for confDH_PARAMETERS exists and is set to 76 a file path, create a new file with: 77 openssl dhparam -out /path/to/file 2048 78 4. Rebuild the .cf file: 79 cd /etc/mail/; make; make install 80 5. Restart sendmail: 81 cd /etc/mail/; make restart 82 83 A sendmail patch is coming, at which time this file will be 84 updated. 85 8620150601: 87 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 88 defined in symlink(7); previously symlinks were silently ignored. 89 9020150430: 91 The const qualifier has been removed from iconv(3) to comply with 92 POSIX. The ports tree is aware of this from r384038 onwards. 93 9420141215: 95 At svn r275807, The default linux compat kernel ABI has been adjusted 96 to 2.6.18 in support of the linux-c6 compat ports infrastructure 97 update. If you wish to continue using the linux-f10 compat ports, 98 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 99 encouraged to update their linux-compat packages to linux-c6 during 100 their next update cycle. 101 102 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 103 10420141205: 105 pjdfstest has been integrated into kyua as an opt-in test suite. 106 Please see share/doc/pjdfstest/README for a more details on how to 107 execute it. 108 10920141118: 110 10.1-RELEASE. 111 11220140904: 113 The ofwfb driver, used to provide a graphics console on PowerPC when 114 using vt(4), no longer allows mmap() of all of physical memory. This 115 will prevent Xorg on PowerPC with some ATI graphics cards from 116 initializing properly unless x11-servers/xorg-server is updated to 117 1.12.4_8 or newer. 118 11920140831: 120 The libatf-c and libatf-c++ major versions were downgraded to 0 and 121 1 respectively to match the upstream numbers. They were out of 122 sync because, when they were originally added to FreeBSD, the 123 upstream versions were not respected. These libraries are private 124 and not yet built by default, so renumbering them should be a 125 non-issue. However, unclean source trees will yield broken test 126 programs once the operator executes "make delete-old-libs" after a 127 "make installworld". 128 129 Additionally, the atf-sh binary was made private by moving it into 130 /usr/libexec/. Already-built shell test programs will keep the 131 path to the old binary so they will break after "make delete-old" 132 is run. 133 134 If you are using WITH_TESTS=yes (not the default), wipe the object 135 tree and rebuild from scratch to prevent spurious test failures. 136 This is only needed once: the misnumbered libraries and misplaced 137 binaries have been added to OptionalObsoleteFiles.inc so they will 138 be removed during a clean upgrade. 139 14020140814: 141 The ixgbe tunables now match their sysctl counterparts, for example: 142 hw.ixgbe.enable_aim => hw.ix.enable_aim 143 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 144 14520140801: 146 The NFSv4.1 server committed by r269398 changes the internal 147 function call interfaces used between the NFS and krpc modules. 148 As such, __FreeBSD_version was bumped. 149 15020140729: 151 The default unbound configuration has been modified to address 152 issues with reverse lookups on networks that use private 153 address ranges. If you use the local_unbound service, run 154 "service local_unbound setup" as root to regenerate your 155 configuration, then "service local_unbound reload" to load the 156 new configuration. 157 15820140717: 159 It is no longer necessary to include the dwarf version in your DEBUG 160 options in your kernel config file. The bug that required it to be 161 placed in the config file has bene fixed. DEBUG should now just 162 contain -g. The build system will automatically update things 163 to do the right thing. 164 16520140715: 166 Several ABI breaking changes were merged to CTL and new iSCSI code. 167 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 168 iscsictl need to be rebuilt to work with a new kernel. 169 17020140708: 171 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 172 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 173 which differs from the behaviour controlled by this knob.) 174 17520140608: 176 On i386 and amd64 systems, the onifconsole flag is now set by default 177 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 178 as a login TTY if it is set in the bootloader as an active kernel 179 console. No changes in behavior should result otherwise. To revert to 180 the previous behavior, set ttyu0 to "off" in /etc/ttys. 181 18220140512: 183 Clang and llvm have been upgraded to 3.4.1 release. 184 18520140321: 186 Clang and llvm have been upgraded to 3.4 release. 187 18820140306: 189 If a Makefile in a tests/ directory was auto-generating a Kyuafile 190 instead of providing an explicit one, this would prevent such 191 Makefile from providing its own Kyuafile in the future during 192 NO_CLEAN builds. This has been fixed in the Makefiles but manual 193 intervention is needed to clean an objdir if you use NO_CLEAN: 194 # find /usr/obj -name Kyuafile | xargs rm -f 195 19620140303: 197 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 198 capability mode support. Please note that enabling the feature in 199 kernel is still highly recommended. 200 20120140227: 202 OpenSSH is now built with sandbox support, and will use sandbox as 203 the default privilege separation method. This requires Capsicum 204 capability mode support in kernel. 205 20620140216: 207 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 208 been deprecated and will not be part of FreeBSD 11.0 and later 209 releases. If you use this driver, please consider switching to 210 the nfe(4) driver instead. 211 21220140120: 213 10.0-RELEASE. 214 21520131216: 216 The behavior of gss_pseudo_random() for the krb5 mechanism 217 has changed, for applications requesting a longer random string 218 than produced by the underlying enctype's pseudo-random() function. 219 In particular, the random string produced from a session key of 220 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 221 be different at the 17th octet and later, after this change. 222 The counter used in the PRF+ construction is now encoded as a 223 big-endian integer in accordance with RFC 4402. 224 __FreeBSD_version is bumped to 1000701. 225 22620131108: 227 The WITHOUT_ATF build knob has been removed and its functionality 228 has been subsumed into the more generic WITHOUT_TESTS. If you were 229 using the former to disable the build of the ATF libraries, you 230 should change your settings to use the latter. 231 23220131031: 233 The default version of mtree is nmtree which is obtained from 234 NetBSD. The output is generally the same, but may vary 235 slightly. If you found you need identical output adding 236 "-F freebsd9" to the command line should do the trick. For the 237 time being, the old mtree is available as fmtree. 238 23920131014: 240 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 241 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 242 1.1.4_8 and verify bsdyml not linked in, before running "make 243 delete-old-libs": 244 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 245 or 246 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 247 24820131010: 249 The rc.d/jail script has been updated to support jail(8) 250 configuration file. The "jail_<jname>_*" rc.conf(5) variables 251 for per-jail configuration are automatically converted to 252 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 253 This is transparently backward compatible. See below about some 254 incompatibilities and rc.conf(5) manual page for more details. 255 256 These variables are now deprecated in favor of jail(8) configuration 257 file. One can use "rc.d/jail config <jname>" command to generate 258 a jail(8) configuration file in /var/run/jail.<jname>.conf without 259 running the jail(8) utility. The default pathname of the 260 configuration file is /etc/jail.conf and can be specified by 261 using $jail_conf or $jail_<jname>_conf variables. 262 263 Please note that jail_devfs_ruleset accepts an integer at 264 this moment. Please consider to rewrite the ruleset name 265 with an integer. 266 26720130930: 268 BIND has been removed from the base system. If all you need 269 is a local resolver, simply enable and start the local_unbound 270 service instead. Otherwise, several versions of BIND are 271 available in the ports tree. The dns/bind99 port is one example. 272 273 With this change, nslookup(1) and dig(1) are no longer in the base 274 system. Users should instead use host(1) and drill(1) which are 275 in the base system. Alternatively, nslookup and dig can 276 be obtained by installing the dns/bind-tools port. 277 27820130916: 279 With the addition of unbound(8), a new unbound user is now 280 required during installworld. "mergemaster -p" can be used to 281 add the user prior to installworld, as documented in the handbook. 282 28320130911: 284 OpenSSH is now built with DNSSEC support, and will by default 285 silently trust signed SSHFP records. This can be controlled with 286 the VerifyHostKeyDNS client configuration setting. DNSSEC support 287 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 288 28920130906: 290 The GNU Compiler Collection and C++ standard library (libstdc++) 291 are no longer built by default on platforms where clang is the system 292 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 293 options in src.conf. 294 29520130905: 296 The PROCDESC kernel option is now part of the GENERIC kernel 297 configuration and is required for the rwhod(8) to work. 298 If you are using custom kernel configuration, you should include 299 'options PROCDESC'. 300 30120130905: 302 The API and ABI related to the Capsicum framework was modified 303 in backward incompatible way. The userland libraries and programs 304 have to be recompiled to work with the new kernel. This includes the 305 following libraries and programs, but the whole buildworld is 306 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 307 kdump, procstat, rwho, rwhod, uniq. 308 30920130903: 310 AES-NI intrinsic support has been added to gcc. The AES-NI module 311 has been updated to use this support. A new gcc is required to build 312 the aesni module on both i386 and amd64. 313 31420130821: 315 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 316 Thus "device padlock_rng" and "device rdrand_rng" should be 317 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 318 31920130813: 320 WITH_ICONV has been split into two feature sets. WITH_ICONV now 321 enables just the iconv* functionality and is now on by default. 322 WITH_LIBICONV_COMPAT enables the libiconv api and link time 323 compatability. Set WITHOUT_ICONV to build the old way. 324 If you have been using WITH_ICONV before, you will very likely 325 need to turn on WITH_LIBICONV_COMPAT. 326 32720130806: 328 INVARIANTS option now enables DEBUG for code with OpenSolaris and 329 Illumos origin, including ZFS. If you have INVARIANTS in your 330 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 331 explicitly. 332 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 333 locks if WITNESS option was set. Because that generated a lot of 334 witness(9) reports and all of them were believed to be false 335 positives, this is no longer done. New option OPENSOLARIS_WITNESS 336 can be used to achieve the previous behavior. 337 33820130806: 339 Timer values in IPv6 data structures now use time_uptime instead 340 of time_second. Although this is not a user-visible functional 341 change, userland utilities which directly use them---ndp(8), 342 rtadvd(8), and rtsold(8) in the base system---need to be updated 343 to r253970 or later. 344 34520130802: 346 find -delete can now delete the pathnames given as arguments, 347 instead of only files found below them or if the pathname did 348 not contain any slashes. Formerly, the following error message 349 would result: 350 351 find: -delete: <path>: relative path potentially not safe 352 353 Deleting the pathnames given as arguments can be prevented 354 without error messages using -mindepth 1 or by changing 355 directory and passing "." as argument to find. This works in the 356 old as well as the new version of find. 357 35820130726: 359 Behavior of devfs rules path matching has been changed. 360 Pattern is now always matched against fully qualified devfs 361 path and slash characters must be explicitly matched by 362 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 363 subdirectories must be reviewed. 364 36520130716: 366 The default ARM ABI has changed to the ARM EABI. The old ABI is 367 incompatible with the ARM EABI and all programs and modules will 368 need to be rebuilt to work with a new kernel. 369 370 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 371 372 NOTE: Support for the old ABI will be removed in the future and 373 users are advised to upgrade. 374 37520130709: 376 pkg_install has been disconnected from the build if you really need it 377 you should add WITH_PKGTOOLS in your src.conf(5). 378 37920130709: 380 Most of network statistics structures were changed to be able 381 keep 64-bits counters. Thus all tools, that work with networking 382 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 383 38420130629: 385 Fix targets that run multiple make's to use && rather than ; 386 so that subsequent steps depend on success of previous. 387 388 NOTE: if building 'universe' with -j* on stable/8 or stable/9 389 it would be better to start the build using bmake, to avoid 390 overloading the machine. 391 39220130618: 393 Fix a bug that allowed a tracing process (e.g. gdb) to write 394 to a memory-mapped file in the traced process's address space 395 even if neither the traced process nor the tracing process had 396 write access to that file. 397 39820130615: 399 CVS has been removed from the base system. An exact copy 400 of the code is available from the devel/cvs port. 401 40220130613: 403 Some people report the following error after the switch to bmake: 404 405 make: illegal option -- J 406 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 407 ... 408 *** [buildworld] Error code 2 409 410 this likely due to an old instance of make in 411 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 412 which src/Makefile will use that blindly, if it exists, so if 413 you see the above error: 414 415 rm -rf `make -V MAKEPATH` 416 417 should resolve it. 418 41920130516: 420 Use bmake by default. 421 Whereas before one could choose to build with bmake via 422 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 423 make. The goal is to remove these knobs for 10-RELEASE. 424 425 It is worth noting that bmake (like gmake) treats the command 426 line as the unit of failure, rather than statements within the 427 command line. Thus '(cd some/where && dosomething)' is safer 428 than 'cd some/where; dosomething'. The '()' allows consistent 429 behavior in parallel build. 430 43120130429: 432 Fix a bug that allows NFS clients to issue READDIR on files. 433 43420130426: 435 The WITHOUT_IDEA option has been removed because 436 the IDEA patent expired. 437 43820130426: 439 The sysctl which controls TRIM support under ZFS has been renamed 440 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 441 enabled by default. 442 44320130425: 444 The mergemaster command now uses the default MAKEOBJDIRPREFIX 445 rather than creating it's own in the temporary directory in 446 order allow access to bootstrapped versions of tools such as 447 install and mtree. When upgrading from version of FreeBSD where 448 the install command does not support -l, you will need to 449 install a new mergemaster command if mergemaster -p is required. 450 This can be accomplished with the command (cd src/usr.sbin/mergemaster 451 && make install). 452 45320130404: 454 Legacy ATA stack, disabled and replaced by new CAM-based one since 455 FreeBSD 9.0, completely removed from the sources. Kernel modules 456 atadisk and atapi*, user-level tools atacontrol and burncd are 457 removed. Kernel option `options ATA_CAM` is now permanently enabled 458 and removed. 459 46020130319: 461 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 462 and socketpair(2). Software, in particular Kerberos, may 463 automatically detect and use these during building. The resulting 464 binaries will not work on older kernels. 465 46620130308: 467 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 468 information, see the respective 20130304 entry). 469 47020130304: 471 Recent commits to callout(9) changed the size of struct callout, 472 so the KBI is probably heavily disturbed. Also, some functions 473 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 474 by macros. Every kernel module using it won't load, so rebuild 475 is requested. 476 477 The ctl device has been re-enabled in GENERIC for i386 and amd64, 478 but does not initialize by default (because of the new CTL_DISABLE 479 option) to save memory. To re-enable it, remove the CTL_DISABLE 480 option from the kernel config file or set kern.cam.ctl.disable=0 481 in /boot/loader.conf. 482 48320130301: 484 The ctl device has been disabled in GENERIC for i386 and amd64. 485 This was done due to the extra memory being allocated at system 486 initialisation time by the ctl driver which was only used if 487 a CAM target device was created. This makes a FreeBSD system 488 unusable on 128MB or less of RAM. 489 49020130208: 491 A new compression method (lz4) has been merged to -HEAD. Please 492 refer to zpool-features(7) for more information. 493 494 Please refer to the "ZFS notes" section of this file for information 495 on upgrading boot ZFS pools. 496 49720130129: 498 A BSD-licensed patch(1) variant has been added and is installed 499 as bsdpatch, being the GNU version the default patch. 500 To inverse the logic and use the BSD-licensed one as default, 501 while having the GNU version installed as gnupatch, rebuild 502 and install world with the WITH_BSD_PATCH knob set. 503 50420130121: 505 Due to the use of the new -l option to install(1) during build 506 and install, you must take care not to directly set the INSTALL 507 make variable in your /etc/make.conf, /etc/src.conf, or on the 508 command line. If you wish to use the -C flag for all installs 509 you may be able to add INSTALL+=-C to /etc/make.conf or 510 /etc/src.conf. 511 51220130118: 513 The install(1) option -M has changed meaning and now takes an 514 argument that is a file or path to append logs to. In the 515 unlikely event that -M was the last option on the command line 516 and the command line contained at least two files and a target 517 directory the first file will have logs appended to it. The -M 518 option served little practical purpose in the last decade so its 519 use is expected to be extremely rare. 520 52120121223: 522 After switching to Clang as the default compiler some users of ZFS 523 on i386 systems started to experience stack overflow kernel panics. 524 Please consider using 'options KSTACK_PAGES=4' in such configurations. 525 52620121222: 527 GEOM_LABEL now mangles label names read from file system metadata. 528 Mangling affect labels containing spaces, non-printable characters, 529 '%' or '"'. Device names in /etc/fstab and other places may need to 530 be updated. 531 53220121217: 533 By default, only the 10 most recent kernel dumps will be saved. To 534 restore the previous behaviour (no limit on the number of kernel dumps 535 stored in the dump directory) add the following line to /etc/rc.conf: 536 537 savecore_flags="" 538 53920121201: 540 With the addition of auditdistd(8), a new auditdistd user is now 541 required during installworld. "mergemaster -p" can be used to 542 add the user prior to installworld, as documented in the handbook. 543 54420121117: 545 The sin6_scope_id member variable in struct sockaddr_in6 is now 546 filled by the kernel before passing the structure to the userland via 547 sysctl or routing socket. This means the KAME-specific embedded scope 548 id in sin6_addr.s6_addr[2] is always cleared in userland application. 549 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 550 __FreeBSD_version is bumped to 1000025. 551 55220121105: 553 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 554 This means that the world and kernel will be compiled with clang 555 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 556 and /usr/bin/cpp. To disable this behavior and revert to building 557 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 558 of current may need to bootstrap WITHOUT_CLANG first if the clang 559 build fails (its compatibility window doesn't extend to the 9 stable 560 branch point). 561 56220121102: 563 The IPFIREWALL_FORWARD kernel option has been removed. Its 564 functionality now turned on by default. 565 56620121023: 567 The ZERO_COPY_SOCKET kernel option has been removed and 568 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 569 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 570 mechanism which is not safe and may result in kernel crashes. 571 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 572 driver supports disposeable external page sized mbuf storage. 573 Proper replacements for both zero-copy mechanisms are under 574 consideration and will eventually lead to complete removal 575 of the two kernel options. 576 57720121023: 578 The IPv4 network stack has been converted to network byte 579 order. The following modules need to be recompiled together 580 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 581 pf(4), ipfw(4), ng_ipfw(4), stf(4). 582 58320121022: 584 Support for non-MPSAFE filesystems was removed from VFS. The 585 VFS_VERSION was bumped, all filesystem modules shall be 586 recompiled. 587 58820121018: 589 All the non-MPSAFE filesystems have been disconnected from 590 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 591 portalfs, smbfs, xfs. 592 59320121016: 594 The interface cloning API and ABI has changed. The following 595 modules need to be recompiled together with kernel: 596 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 597 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 598 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 599 60020121015: 601 The sdhci driver was split in two parts: sdhci (generic SD Host 602 Controller logic) and sdhci_pci (actual hardware driver). 603 No kernel config modifications are required, but if you 604 load sdhc as a module you must switch to sdhci_pci instead. 605 60620121014: 607 Import the FUSE kernel and userland support into base system. 608 60920121013: 610 The GNU sort(1) program has been removed since the BSD-licensed 611 sort(1) has been the default for quite some time and no serious 612 problems have been reported. The corresponding WITH_GNU_SORT 613 knob has also gone. 614 61520121006: 616 The pfil(9) API/ABI for AF_INET family has been changed. Packet 617 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 618 with new kernel. 619 62020121001: 621 The net80211(4) ABI has been changed to allow for improved driver 622 PS-POLL and power-save support. All wireless drivers need to be 623 recompiled to work with the new kernel. 624 62520120913: 626 The random(4) support for the VIA hardware random number 627 generator (`PADLOCK') is no longer enabled unconditionally. 628 Add the padlock_rng device in the custom kernel config if 629 needed. The GENERIC kernels on i386 and amd64 do include the 630 device, so the change only affects the custom kernel 631 configurations. 632 63320120908: 634 The pf(4) packet filter ABI has been changed. pfctl(8) and 635 snmp_pf module need to be recompiled to work with new kernel. 636 63720120828: 638 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 639 to -HEAD. Pools that have empty_bpobj in active state can not be 640 imported read-write with ZFS implementations that do not support 641 this feature. For more information read the zpool-features(5) 642 manual page. 643 64420120727: 645 The sparc64 ZFS loader has been changed to no longer try to auto- 646 detect ZFS providers based on diskN aliases but now requires these 647 to be explicitly listed in the OFW boot-device environment variable. 648 64920120712: 650 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 651 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 652 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 653 65420120712: 655 The following sysctls and tunables have been renamed for consistency 656 with other variables: 657 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 658 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 659 66020120628: 661 The sort utility has been replaced with BSD sort. For now, GNU sort 662 is also available as "gnusort" or the default can be set back to 663 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 664 installed as "bsdsort". 665 66620120611: 667 A new version of ZFS (pool version 5000) has been merged to -HEAD. 668 Starting with this version the old system of ZFS pool versioning 669 is superseded by "feature flags". This concept enables forward 670 compatibility against certain future changes in functionality of ZFS 671 pools. The first read-only compatible "feature flag" for ZFS pools 672 is named "com.delphix:async_destroy". For more information 673 read the new zpool-features(5) manual page. 674 Please refer to the "ZFS notes" section of this file for information 675 on upgrading boot ZFS pools. 676 67720120417: 678 The malloc(3) implementation embedded in libc now uses sources imported 679 as contrib/jemalloc. The most disruptive API change is to 680 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 681 delete it prior to installworld, and optionally re-create it using the 682 new format after rebooting. See malloc.conf(5) for details 683 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 684 NAMESPACE section). 685 68620120328: 687 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 688 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 689 now spelled mips. This is to aid compatibility with third-party 690 software that expects this naming scheme in uname(3). Little-endian 691 settings are unchanged. If you are updating a big-endian mips64 machine 692 from before this change, you may need to set MACHINE_ARCH=mips64 in 693 your environment before the new build system will recognize your machine. 694 69520120306: 696 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 697 platforms. 698 69920120229: 700 Now unix domain sockets behave "as expected" on nullfs(5). Previously 701 nullfs(5) did not pass through all behaviours to the underlying layer, 702 as a result if we bound to a socket on the lower layer we could connect 703 only to the lower path; if we bound to the upper layer we could connect 704 only to the upper path. The new behavior is one can connect to both the 705 lower and the upper paths regardless what layer path one binds to. 706 70720120211: 708 The getifaddrs upgrade path broken with 20111215 has been restored. 709 If you have upgraded in between 20111215 and 20120209 you need to 710 recompile libc again with your kernel. You still need to recompile 711 world to be able to configure CARP but this restriction already 712 comes from 20111215. 713 71420120114: 715 The set_rcvar() function has been removed from /etc/rc.subr. All 716 base and ports rc.d scripts have been updated, so if you have a 717 port installed with a script in /usr/local/etc/rc.d you can either 718 hand-edit the rcvar= line, or reinstall the port. 719 720 An easy way to handle the mass-update of /etc/rc.d: 721 rm /etc/rc.d/* && mergemaster -i 722 72320120109: 724 panic(9) now stops other CPUs in the SMP systems, disables interrupts 725 on the current CPU and prevents other threads from running. 726 This behavior can be reverted using the kern.stop_scheduler_on_panic 727 tunable/sysctl. 728 The new behavior can be incompatible with kern.sync_on_panic. 729 73020111215: 731 The carp(4) facility has been changed significantly. Configuration 732 of the CARP protocol via ifconfig(8) has changed, as well as format 733 of CARP events submitted to devd(8) has changed. See manual pages 734 for more information. The arpbalance feature of carp(4) is currently 735 not supported anymore. 736 737 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 738 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 739 need to be recompiled. 740 74120111122: 742 The acpi_wmi(4) status device /dev/wmistat has been renamed to 743 /dev/wmistat0. 744 74520111108: 746 The option VFS_ALLOW_NONMPSAFE option has been added in order to 747 explicitely support non-MPSAFE filesystems. 748 It is on by default for all supported platform at this present 749 time. 750 75120111101: 752 The broken amd(4) driver has been replaced with esp(4) in the amd64, 753 i386 and pc98 GENERIC kernel configuration files. 754 75520110930: 756 sysinstall has been removed 757 75820110923: 759 The stable/9 branch created in subversion. This corresponds to the 760 RELENG_9 branch in CVS. 761 76220110913: 763 This commit modifies vfs_register() so that it uses a hash 764 calculation to set vfc_typenum, which is enabled by default. 765 The first time a system is booted after this change, the 766 vfc_typenum values will change for all file systems. The 767 main effect of this is a change to the NFS server file handles 768 for file systems that use vfc_typenum in their fsid, such as ZFS. 769 It will, however, prevent vfc_typenum from changing when file 770 systems are loaded in a different order for subsequent reboots. 771 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 772 until you are ready to remount all NFS clients after a reboot. 773 77420110828: 775 Bump the shared library version numbers for libraries that 776 do not use symbol versioning, have changed the ABI compared 777 to stable/8 and which shared library version was not bumped. 778 Done as part of 9.0-RELEASE cycle. 779 78020110815: 781 During the merge of Capsicum features, the fget(9) KPI was modified. 782 This may require the rebuilding of out-of-tree device drivers -- 783 issues have been reported specifically with the nVidia device driver. 784 __FreeBSD_version is bumped to 900041. 785 786 Also, there is a period between 20110811 and 20110814 where the 787 special devices /dev/{stdin,stdout,stderr} did not work correctly. 788 Building world from a kernel during that window may not work. 789 79020110628: 791 The packet filter (pf) code has been updated to OpenBSD 4.5. 792 You need to update userland tools to be in sync with kernel. 793 This update breaks backward compatibility with earlier pfsync(4) 794 versions. Care must be taken when updating redundant firewall setups. 795 79620110608: 797 The following sysctls and tunables are retired on x86 platforms: 798 machdep.hlt_cpus 799 machdep.hlt_logical_cpus 800 The following sysctl is retired: 801 machdep.hyperthreading_allowed 802 The sysctls were supposed to provide a way to dynamically offline and 803 online selected CPUs on x86 platforms, but the implementation has not 804 been reliable especially with SCHED_ULE scheduler. 805 machdep.hyperthreading_allowed tunable is still available to ignore 806 hyperthreading CPUs at OS level. 807 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 808 where X is an APIC ID of a CPU. Be advised, though, that disabling 809 CPUs in non-uniform fashion will result in non-uniform topology and 810 may lead to sub-optimal system performance with SCHED_ULE, which is 811 a default scheduler. 812 81320110607: 814 cpumask_t type is retired and cpuset_t is used in order to describe 815 a mask of CPUs. 816 81720110531: 818 Changes to ifconfig(8) for dynamic address family detection mandate 819 that you are running a kernel of 20110525 or later. Make sure to 820 follow the update procedure to boot a new kernel before installing 821 world. 822 82320110513: 824 Support for sun4v architecture is officially dropped 825 82620110503: 827 Several KPI breaking changes have been committed to the mii(4) layer, 828 the PHY drivers and consequently some Ethernet drivers using mii(4). 829 This means that miibus.ko and the modules of the affected Ethernet 830 drivers need to be recompiled. 831 832 Note to kernel developers: Given that the OUI bit reversion problem 833 was fixed as part of these changes all mii(4) commits related to OUIs, 834 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 835 handling, no longer can be merged verbatim to stable/8 and previous 836 branches. 837 83820110430: 839 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 840 into their kernel configurations along with 'device pci'. 841 84220110427: 843 The default NFS client is now the new NFS client, so fstype "newnfs" 844 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 845 Although mounts via fstype "nfs" will usually work without userland 846 changes, it is recommended that the mount(8) and mount_nfs(8) 847 commands be rebuilt from sources and that a link to mount_nfs called 848 mount_oldnfs be created. The new client is compiled into the 849 kernel with "options NFSCL" and this is needed for diskless root 850 file systems. The GENERIC kernel configs have been changed to use 851 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 852 To use the regular/old client, you can "mount -t oldnfs ...". For 853 a diskless root file system, you must also include a line like: 854 855 vfs.root.mountfrom="oldnfs:" 856 857 in the boot/loader.conf on the root fs on the NFS server to make 858 a diskless root fs use the old client. 859 86020110424: 861 The GENERIC kernels for all architectures now default to the new 862 CAM-based ATA stack. It means that all legacy ATA drivers were 863 removed and replaced by respective CAM drivers. If you are using 864 ATA device names in /etc/fstab or other places, make sure to update 865 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 866 where 'Y's are the sequential numbers starting from zero for each type 867 in order of detection, unless configured otherwise with tunables, 868 see cam(4)). There will be symbolic links created in /dev/ to map 869 old adX devices to the respective adaY. They should provide basic 870 compatibility for file systems mounting in most cases, but they do 871 not support old user-level APIs and do not have respective providers 872 in GEOM. Consider using updated management tools with new device names. 873 874 It is possible to load devices ahci, ata, siis and mvs as modules, 875 but option ATA_CAM should remain in kernel configuration to make ata 876 module work as CAM driver supporting legacy ATA controllers. Device ata 877 still can be used in modular fashion (atacore + ...). Modules atadisk 878 and atapi* are not used and won't affect operation in ATA_CAM mode. 879 Note that to use CAM-based ATA kernel should include CAM devices 880 scbus, pass, da (or explicitly ada), cd and optionally others. All of 881 them are parts of the cam module. 882 883 ataraid(4) functionality is now supported by the RAID GEOM class. 884 To use it you can load geom_raid kernel module and use graid(8) tool 885 for management. Instead of /dev/arX device names, use /dev/raid/rX. 886 887 No kernel config options or code have been removed, so if a problem 888 arises, please report it and optionally revert to the old ATA stack. 889 In order to do it you can remove from the kernel config: 890 options ATA_CAM 891 device ahci 892 device mvs 893 device siis 894 , and instead add back: 895 device atadisk # ATA disk drives 896 device ataraid # ATA RAID drives 897 device atapicd # ATAPI CDROM drives 898 device atapifd # ATAPI floppy drives 899 device atapist # ATAPI tape drives 900 90120110423: 902 The default NFS server has been changed to the new server, which 903 was referred to as the experimental server. If you need to switch 904 back to the old NFS server, you must now put the "-o" option on 905 both the mountd and nfsd commands. This can be done using the 906 mountd_flags and nfs_server_flags rc.conf variables until an 907 update to the rc scripts is committed, which is coming soon. 908 90920110418: 910 The GNU Objective-C runtime library (libobjc), and other Objective-C 911 related components have been removed from the base system. If you 912 require an Objective-C library, please use one of the available ports. 913 91420110331: 915 ath(4) has been split into bus- and device- modules. if_ath contains 916 the HAL, the TX rate control and the network device code. if_ath_pci 917 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 918 contains the AHB glue. Users need to load both if_ath_pci and if_ath 919 in order to use ath on everything else. 920 921 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 922 need to load if_ath and if_ath_pci for ath(4) operation. 923 92420110314: 925 As part of the replacement of sysinstall, the process of building 926 release media has changed significantly. For details, please re-read 927 release(7), which has been updated to reflect the new build process. 928 92920110218: 930 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 931 is the last available version under GPLv2. It brings a number of new 932 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 933 4.1 and SSE 4.2), better support for powerpc64, a number of new 934 directives, and lots of other small improvements. See the ChangeLog 935 file in contrib/binutils for the full details. 936 93720110218: 938 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 939 compliant, and will now use half of hash for authentication. 940 This will break interoperability with all stacks (including all 941 actual FreeBSD versions) who implement 942 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 943 authentication). 944 The only workaround with such peers is to use another HMAC 945 algorithm for IPsec ("phase 2") authentication. 946 94720110207: 948 Remove the uio_yield prototype and symbol. This function has 949 been misnamed since it was introduced and should not be 950 globally exposed with this name. The equivalent functionality 951 is now available using kern_yield(curthread->td_user_pri). 952 The function remains undocumented. 953 95420110112: 955 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 956 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 957 for scalar sysctls is defined but disabled. Code that needs 958 UQUAD to pass the type checking that must compile on older 959 systems where the define is not present can check against 960 __FreeBSD_version >= 900030. 961 962 The system dialog(1) has been replaced with a new version previously 963 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 964 with the previous version, but the libdialog associated with it has 965 a largely incompatible API. As such, the original version of libdialog 966 will be kept temporarily as libodialog, until its base system consumers 967 are replaced or updated. Bump __FreeBSD_version to 900030. 968 96920110103: 970 If you are trying to run make universe on a -stable system, and you get 971 the following warning: 972 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 973 unknown. config(8) likely too old." 974 or something similar to it, then you must upgrade your -stable system 975 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 976 stable/8) or build the config from the latest stable/8 branch and 977 install it on your system. 978 979 Prior to this date, building a current universe on 8-stable system from 980 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 981 error in the first kernel build phase. A new config on those old 982 systems will fix that problem for older versions of -current. 983 98420101228: 985 The TCP stack has been modified to allow Khelp modules to interact with 986 it via helper hook points and store per-connection data in the TCP 987 control block. Bump __FreeBSD_version to 900029. User space tools that 988 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 989 be recompiled. 990 99120101114: 992 Generic IEEE 802.3 annex 31B full duplex flow control support has been 993 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 994 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 995 to take advantage of it instead of using custom implementations. This 996 means that these drivers now no longer unconditionally advertise 997 support for flow control but only do so if flow control is a selected 998 media option. This was implemented in the generic support that way in 999 order to allow flow control to be switched on and off via ifconfig(8) 1000 with the PHY specific default to typically off in order to protect 1001 from unwanted effects. Consequently, if you used flow control with 1002 one of the above mentioned drivers you now need to explicitly enable 1003 it, for example via: 1004 ifconfig bge0 media auto mediaopt flowcontrol 1005 1006 Along with the above mentioned changes generic support for setting 1007 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1008 e1000phy(4) as well as ip1000phy(4) have been converted to take 1009 advantage of it. This means that these drivers now no longer take the 1010 link0 parameter for selecting master mode but the master media option 1011 has to be used instead, for example like in the following: 1012 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1013 1014 Selection of master mode now is also available with all other PHY 1015 drivers supporting 1000baseT. 1016 101720101111: 1018 The TCP stack has received a significant update to add support for 1019 modularised congestion control and generally improve the clarity of 1020 congestion control decisions. Bump __FreeBSD_version to 900025. User 1021 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1022 sockstat) need to be recompiled. 1023 102420101002: 1025 The man(1) utility has been replaced by a new version that no longer 1026 uses /etc/manpath.config. Please consult man.conf(5) for how to 1027 migrate local entries to the new format. 1028 102920100928: 1030 The copyright strings printed by login(1) and sshd(8) at the time of a 1031 new connection have been removed to follow other operating systems and 1032 upstream sshd. 1033 103420100915: 1035 A workaround for a fixed ld bug has been removed in kernel code, 1036 so make sure that your system ld is built from sources after 1037 revision 210245 from 2010-07-19 (r211583 if building head kernel 1038 on stable/8, r211584 for stable/7; both from 2010-08-21). 1039 A symptom of incorrect ld version is different addresses for 1040 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1041 104220100913: 1043 The $ipv6_prefer variable in rc.conf(5) has been split into 1044 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1045 1046 The $ip6addrctl_policy is a variable to choose a pre-defined 1047 address selection policy set by ip6addrctl(8). A value 1048 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1049 default is "AUTO". 1050 1051 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1052 flag (see an entry of 20090926) is set on an interface with no 1053 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1054 security reason. If you want IPv6 link-local address on all 1055 interfaces by default, set this to "YES". 1056 1057 The old ipv6_prefer="YES" is equivalent to 1058 ipv6_activate_all_interfaces="YES" and 1059 ip6addrctl_policy="ipv6_prefer". 1060 106120100913: 1062 DTrace has grown support for userland tracing. Due to this, DTrace is 1063 now i386 and amd64 only. 1064 dtruss(1) is now installed by default on those systems and a new 1065 kernel module is needed for userland tracing: fasttrap. 1066 No changes to your kernel config file are necessary to enable 1067 userland tracing, but you might consider adding 'STRIP=' and 1068 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1069 to have informative userland stack traces in DTrace (ustack). 1070 107120100725: 1072 The acpi_aiboost(4) driver has been removed in favor of the new 1073 aibs(4) driver. You should update your kernel configuration file. 1074 107520100722: 1076 BSD grep has been imported to the base system and it is built by 1077 default. It is completely BSD licensed, highly GNU-compatible, uses 1078 less memory than its GNU counterpart and has a small codebase. 1079 However, it is slower than its GNU counterpart, which is mostly 1080 noticeable for larger searches, for smaller ones it is measurable 1081 but not significant. The reason is complex, the most important factor 1082 is that we lack a modern and efficient regex library and GNU 1083 overcomes this by optimizing the searches internally. Future work 1084 on improving the regex performance is planned, for the meantime, 1085 users that need better performance, can build GNU grep instead by 1086 setting the WITH_GNU_GREP knob. 1087 108820100713: 1089 Due to the import of powerpc64 support, all existing powerpc kernel 1090 configuration files must be updated with a machine directive like this: 1091 machine powerpc powerpc 1092 1093 In addition, an updated config(8) is required to build powerpc kernels 1094 after this change. 1095 109620100713: 1097 A new version of ZFS (version 15) has been merged to -HEAD. 1098 This version uses a python library for the following subcommands: 1099 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1100 For full functionality of these commands the following port must 1101 be installed: sysutils/py-zfs 1102 110320100429: 1104 'vm_page's are now hashed by physical address to an array of mutexes. 1105 Currently this is only used to serialize access to hold_count. Over 1106 time the page queue mutex will be peeled away. This changes the size 1107 of pmap on every architecture. And requires all callers of vm_page_hold 1108 and vm_page_unhold to be updated. 1109 111020100402: 1111 WITH_CTF can now be specified in src.conf (not recommended, there 1112 are some problems with static executables), make.conf (would also 1113 affect ports which do not use GNU make and do not override the 1114 compile targets) or in the kernel config (via "makeoptions 1115 WITH_CTF=yes"). 1116 When WITH_CTF was specified there before this was silently ignored, 1117 so make sure that WITH_CTF is not used in places which could lead 1118 to unwanted behavior. 1119 112020100311: 1121 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1122 to allow 32-bit compatibility on non-x86 platforms. All kernel 1123 configurations on amd64 and ia64 platforms using these options must 1124 be modified accordingly. 1125 112620100113: 1127 The utmp user accounting database has been replaced with utmpx, 1128 the user accounting interface standardized by POSIX. 1129 Unfortunately the semantics of utmp and utmpx don't match, 1130 making it practically impossible to support both interfaces. 1131 The user accounting database is used by tools like finger(1), 1132 last(1), talk(1), w(1) and ac(8). 1133 1134 All applications in the base system use utmpx. This means only 1135 local binaries (e.g. from the ports tree) may still use these 1136 utmp database files. These applications must be rebuilt to make 1137 use of utmpx. 1138 1139 After the system has been upgraded, it is safe to remove the old 1140 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1141 assuming their contents is of no importance anymore. Old wtmp 1142 databases can only be used by last(1) and ac(8) after they have 1143 been converted to the new format using wtmpcvt(1). 1144 114520100108: 1146 Introduce the kernel thread "deadlock resolver" (which can be enabled 1147 via the DEADLKRES option, see NOTES for more details) and the 1148 sleepq_type() function for sleepqueues. 1149 115020091202: 1151 The rc.firewall and rc.firewall6 were unified, and 1152 rc.firewall6 and rc.d/ip6fw were removed. 1153 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1154 variables are obsoleted. Instead, the following new rc 1155 variables are added to rc.d/ipfw: 1156 1157 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1158 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1159 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1160 1161 The meanings correspond to the relevant IPv4 variables. 1162 116320091125: 1164 8.0-RELEASE. 1165 116620091113: 1167 The default terminal emulation for syscons(4) has been changed 1168 from cons25 to xterm on all platforms except pc98. This means 1169 that the /etc/ttys file needs to be updated to ensure correct 1170 operation of applications on the console. 1171 1172 The terminal emulation style can be toggled per window by using 1173 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1174 options can be used to change the compile-time default back to 1175 cons25. 1176 1177 To prevent graphical artifacts, make sure the TERM environment 1178 variable is set to match the terminal emulation that is being 1179 performed by syscons(4). 1180 118120091109: 1182 The layout of the structure ieee80211req_scan_result has changed. 1183 Applications that require wireless scan results (e.g. ifconfig(8)) 1184 from net80211 need to be recompiled. 1185 1186 Applications such as wpa_supplicant(8) may require a full world 1187 build without using NO_CLEAN in order to get synchronized with the 1188 new structure. 1189 119020091025: 1191 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1192 There's one kernel module for each firmware. Adding "device iwnfw" 1193 to the kernel configuration file means including all three firmware 1194 images inside the kernel. If you want to include just the one for 1195 your wireless card, use the devices iwn4965fw, iwn5000fw or 1196 iwn5150fw. 1197 119820090926: 1199 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1200 into rc.d/netif. The changes are the following: 1201 1202 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1203 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1204 Note that both variables need the "inet6" keyword at the head. 1205 1206 Do not set $ipv6_network_interfaces manually if you do not 1207 understand what you are doing. It is not needed in most cases. 1208 1209 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1210 they are obsolete. 1211 1212 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1213 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1214 1215 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1216 all configured interfaces have "inet6 accept_rtadv" in the 1217 $ifconfig_IF_ipv6. These are for backward compatibility. 1218 1219 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1220 functionality of interfaces with no corresponding 1221 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1222 and the default address selection policy of ip6addrctl(8) 1223 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1224 Note that if you want to configure IPv6 functionality on the 1225 disabled interfaces after boot, first you need to clear the flag by 1226 using ifconfig(8) like: 1227 1228 ifconfig em0 inet6 -ifdisabled 1229 1230 If YES, the default address selection policy is set as 1231 IPv6-preferred. 1232 1233 The default value of $ipv6_prefer is NO. 1234 1235 4. If your system need to receive Router Advertisement messages, 1236 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1237 scripts automatically invoke rtsol(8) when the interface becomes 1238 UP. The Router Advertisement messages are used for SLAAC 1239 (State-Less Address AutoConfiguration). 1240 124120090922: 1242 802.11s D3.03 support was committed. This is incompatible with the 1243 previous code, which was based on D3.0. 1244 124520090912: 1246 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1247 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1248 control whether accepting Router Advertisement messages or not. 1249 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1250 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1251 The ifconfig(8) utility now supports these flags. 1252 125320090910: 1254 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1255 mount(8) and -a option for df(1) to see them. 1256 125720090825: 1258 The old tunable hw.bus.devctl_disable has been superseded by 1259 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1260 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1261 is 1000. 1262 126320090813: 1264 Remove the option STOP_NMI. The default action is now to use NMI only 1265 for KDB via the newly introduced function stop_cpus_hard() and 1266 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1267 126820090803: 1269 The stable/8 branch created in subversion. This corresponds to the 1270 RELENG_8 branch in CVS. 1271 127220090719: 1273 Bump the shared library version numbers for all libraries that do not 1274 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1275 __FreeBSD_version to 800105. 1276 127720090714: 1278 Due to changes in the implementation of virtual network stack support, 1279 all network-related kernel modules must be recompiled. As this change 1280 breaks the ABI, bump __FreeBSD_version to 800104. 1281 128220090713: 1283 The TOE interface to the TCP syncache has been modified to remove 1284 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1285 The cxgb driver is the only TOE consumer affected by this change, and 1286 needs to be recompiled along with the kernel. As this change breaks 1287 the ABI, bump __FreeBSD_version to 800103. 1288 128920090712: 1290 Padding has been added to struct tcpcb, sackhint and tcpstat in 1291 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1292 maintaining the ABI. However, this change breaks the ABI, so bump 1293 __FreeBSD_version to 800102. User space tools that rely on the size of 1294 any of these structs (e.g. sockstat) need to be recompiled. 1295 129620090630: 1297 The NFS_LEGACYRPC option has been removed along with the old kernel 1298 RPC implementation that this option selected. Kernel configurations 1299 may need to be adjusted. 1300 130120090629: 1302 The network interface device nodes at /dev/net/<interface> have been 1303 removed. All ioctl operations can be performed the normal way using 1304 routing sockets. The kqueue functionality can generally be replaced 1305 with routing sockets. 1306 130720090628: 1308 The documentation from the FreeBSD Documentation Project (Handbook, 1309 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1310 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1311 131220090624: 1313 The ABI of various structures related to the SYSV IPC API have been 1314 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1315 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1316 800100. 1317 131820090622: 1319 Layout of struct vnet has changed as routing related variables were 1320 moved to their own Vimage module. Modules need to be recompiled. Bump 1321 __FreeBSD_version to 800099. 1322 132320090619: 1324 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1325 respectively. As long as no more than 16 groups per process are used, 1326 no changes should be visible. When more than 16 groups are used, old 1327 binaries may fail if they call getgroups() or getgrouplist() with 1328 statically sized storage. Recompiling will work around this, but 1329 applications should be modified to use dynamically allocated storage 1330 for group arrays as POSIX.1-2008 does not cap an implementation's 1331 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1332 1333 NFS and portalfs mounts may also be affected as the list of groups is 1334 truncated to 16. Users of NFS who use more than 16 groups, should 1335 take care that negative group permissions are not used on the exported 1336 file systems as they will not be reliable unless a GSSAPI based 1337 authentication method is used. 1338 133920090616: 1340 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1341 option compiles in the support for adaptive spinning for lockmgrs 1342 which want to enable it. The lockinit() function now accepts the flag 1343 LK_ADAPTIVE in order to make the lock object subject to adaptive 1344 spinning when both held in write and read mode. 1345 134620090613: 1347 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1348 changed. User applications that use this ioctl need to be rebuilt. 1349 135020090611: 1351 The layout of struct thread has changed. Kernel and modules need to 1352 be rebuilt. 1353 135420090608: 1355 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1356 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1357 135820090602: 1359 window(1) has been removed from the base system. It can now be 1360 installed from ports. The port is called misc/window. 1361 136220090601: 1363 The way we are storing and accessing `routing table' entries has 1364 changed. Programs reading the FIB, like netstat, need to be 1365 re-compiled. 1366 136720090601: 1368 A new netisr implementation has been added for FreeBSD 8. Network 1369 file system modules, such as igmp, ipdivert, and others, should be 1370 rebuilt. 1371 Bump __FreeBSD_version to 800096. 1372 137320090530: 1374 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1375 more valid. 1376 137720090530: 1378 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1379 Bump __FreeBSD_version to 800094. 1380 138120090529: 1382 Add mnt_xflag field to 'struct mount'. File system modules need to be 1383 rebuilt. 1384 Bump __FreeBSD_version to 800093. 1385 138620090528: 1387 The compiling option ADAPTIVE_SX has been retired while it has been 1388 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1389 The KPI for sx_init_flags() changes as accepting flags: 1390 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1391 been introduced in order to handle the reversed logic. 1392 Bump __FreeBSD_version to 800092. 1393 139420090527: 1395 Add support for hierarchical jails. Remove global securelevel. 1396 Bump __FreeBSD_version to 800091. 1397 139820090523: 1399 The layout of struct vnet_net has changed, therefore modules 1400 need to be rebuilt. 1401 Bump __FreeBSD_version to 800090. 1402 140320090523: 1404 The newly imported zic(8) produces a new format in the output. Please 1405 run tzsetup(8) to install the newly created data to /etc/localtime. 1406 140720090520: 1408 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1409 hw.usb.* and is now consistent again with previous releases. 1410 141120090520: 1412 802.11 monitor mode support was revised and driver api's were changed. 1413 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1414 of DLT_IEEE802_11. No user-visible data structures were changed but 1415 applications that use DLT_IEEE802_11 may require changes. 1416 Bump __FreeBSD_version to 800088. 1417 141820090430: 1419 The layout of the following structs has changed: sysctl_oid, 1420 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1421 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1422 panics may be experienced. World rebuild is required for 1423 correctly checking networking state from userland. 1424 Bump __FreeBSD_version to 800085. 1425 142620090429: 1427 MLDv2 and Source-Specific Multicast (SSM) have been merged 1428 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1429 The implementation of SSM within FreeBSD's IPv6 stack closely 1430 follows the IPv4 implementation. 1431 1432 For kernel developers: 1433 1434 * The most important changes are that the ip6_output() and 1435 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1436 and this lock has been downgraded to a non-recursive mutex. 1437 1438 * As with the changes to the IPv4 stack to support SSM, filtering 1439 of inbound multicast traffic must now be performed by transport 1440 protocols within the IPv6 stack. This does not apply to TCP and 1441 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1442 1443 * The KPIs used by IPv6 multicast are similar to those used by 1444 the IPv4 stack, with the following differences: 1445 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1446 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1447 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1448 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1449 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1450 for MLDv1 have an additional 'timer' argument which is used to 1451 jitter the initial membership report for the solicited-node 1452 multicast membership on-link. 1453 * This is not strictly needed for MLDv2, which already jitters 1454 its report transmissions. However, the 'timer' argument is 1455 preserved in case MLDv1 is active on the interface. 1456 1457 * The KAME linked-list based IPv6 membership implementation has 1458 been refactored to use a vector similar to that used by the IPv4 1459 stack. 1460 Code which maintains a list of its own multicast memberships 1461 internally, e.g. carp, has been updated to reflect the new 1462 semantics. 1463 1464 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1465 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1466 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1467 implementation constraint which needs to be addressed in HEAD. 1468 1469 For application developers: 1470 1471 * The changes are broadly similar to those made for the IPv4 1472 stack. 1473 1474 * The use of IPv4 and IPv6 multicast socket options on the same 1475 socket, using mapped addresses, HAS NOT been tested or supported. 1476 1477 * There are a number of issues with the implementation of various 1478 IPv6 multicast APIs which need to be resolved in the API surface 1479 before the implementation is fully compatible with KAME userland 1480 use, and these are mostly to do with interface index treatment. 1481 1482 * The literature available discusses the use of either the delta / ASM 1483 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1484 using setsourcefilter(3)/getsourcefilter(3). For more information 1485 please refer to RFC 3768, 'Socket Interface Extensions for 1486 Multicast Source Filters'. 1487 1488 * Applications which use the published RFC 3678 APIs should be fine. 1489 1490 For systems administrators: 1491 1492 * The mtest(8) utility has been refactored to support IPv6, in 1493 addition to IPv4. Interface addresses are no longer accepted 1494 as arguments, their names must be used instead. The utility 1495 will map the interface name to its first IPv4 address as 1496 returned by getifaddrs(3). 1497 1498 * The ifmcstat(8) utility has also been updated to print the MLDv2 1499 endpoint state and source filter lists via sysctl(3). 1500 1501 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1502 loopback of IPv6 multicast datagrams by default; it defaults to 1 1503 to preserve the existing behaviour. Disabling multicast loopback is 1504 recommended for optimal system performance. 1505 1506 * The IPv6 MROUTING code has been changed to examine this sysctl 1507 instead of attempting to perform a group lookup before looping 1508 back forwarded datagrams. 1509 1510 Bump __FreeBSD_version to 800084. 1511 151220090422: 1513 Implement low-level Bluetooth HCI API. 1514 Bump __FreeBSD_version to 800083. 1515 151620090419: 1517 The layout of struct malloc_type, used by modules to register new 1518 memory allocation types, has changed. Most modules will need to 1519 be rebuilt or panics may be experienced. 1520 Bump __FreeBSD_version to 800081. 1521 152220090415: 1523 Anticipate overflowing inp_flags - add inp_flags2. 1524 This changes most offsets in inpcb, so checking v4 connection 1525 state will require a world rebuild. 1526 Bump __FreeBSD_version to 800080. 1527 152820090415: 1529 Add an llentry to struct route and struct route_in6. Modules 1530 embedding a struct route will need to be recompiled. 1531 Bump __FreeBSD_version to 800079. 1532 153320090414: 1534 The size of rt_metrics_lite and by extension rtentry has changed. 1535 Networking administration apps will need to be recompiled. 1536 The route command now supports show as an alias for get, weighting 1537 of routes, sticky and nostick flags to alter the behavior of stateful 1538 load balancing. 1539 Bump __FreeBSD_version to 800078. 1540 154120090408: 1542 Do not use Giant for kbdmux(4) locking. This is wrong and 1543 apparently causing more problems than it solves. This will 1544 re-open the issue where interrupt handlers may race with 1545 kbdmux(4) in polling mode. Typical symptoms include (but 1546 not limited to) duplicated and/or missing characters when 1547 low level console functions (such as gets) are used while 1548 interrupts are enabled (for example geli password prompt, 1549 mountroot prompt etc.). Disabling kbdmux(4) may help. 1550 155120090407: 1552 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1553 kernel modules referencing any of the above need to be recompiled. 1554 Bump __FreeBSD_version to 800075. 1555 155620090320: 1557 GEOM_PART has become the default partition slicer for storage devices, 1558 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1559 introduces some changes: 1560 1561 MSDOS/EBR: the devices created from MSDOS extended partition entries 1562 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1563 to devices with offset-based names. fstabs may need to be modified. 1564 1565 BSD: the "geometry does not match label" warning is harmless in most 1566 cases but it points to problems in file system misalignment with 1567 disk geometry. The "c" partition is now implicit, covers the whole 1568 top-level drive and cannot be (mis)used by users. 1569 1570 General: Kernel dumps are now not allowed to be written to devices 1571 whose partition types indicate they are meant to be used for file 1572 systems (or, in case of MSDOS partitions, as something else than 1573 the "386BSD" type). 1574 1575 Most of these changes date approximately from 200812. 1576 157720090319: 1578 The uscanner(4) driver has been removed from the kernel. This follows 1579 Linux removing theirs in 2.6 and making libusb the default interface 1580 (supported by sane). 1581 158220090319: 1583 The multicast forwarding code has been cleaned up. netstat(1) 1584 only relies on KVM now for printing bandwidth upcall meters. 1585 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1586 ip6_mroute_mod respectively. The config(5) options for statically 1587 compiling this code remain the same, i.e. 'options MROUTING'. 1588 158920090315: 1590 Support for the IFF_NEEDSGIANT network interface flag has been 1591 removed, which means that non-MPSAFE network device drivers are no 1592 longer supported. In particular, if_ar, if_sr, and network device 1593 drivers from the old (legacy) USB stack can no longer be built or 1594 used. 1595 159620090313: 1597 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1598 a bunch of new language catalog files have also been added. 1599 This means that some common libc messages are now localized and 1600 they depend on the LC_MESSAGES environmental variable. 1601 160220090313: 1603 The k8temp(4) driver has been renamed to amdtemp(4) since 1604 support for Family 10 and Family 11 CPU families was added. 1605 160620090309: 1607 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1608 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1609 1610 For kernel developers, the most important changes are that the 1611 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1612 and this lock has been downgraded to a non-recursive mutex. 1613 1614 Transport protocols (UDP, Raw IP) are now responsible for filtering 1615 inbound multicast traffic according to group membership and source 1616 filters. The imo_multicast_filter() KPI exists for this purpose. 1617 Transports which do not use multicast (SCTP, TCP) already reject 1618 multicast by default. Forwarding and receive performance may improve 1619 as a mutex acquisition is no longer needed in the ip_input() 1620 low-level input path. in_addmulti() and in_delmulti() are shimmed 1621 to new KPIs which exist to support SSM in-kernel. 1622 1623 For application developers, it is recommended that loopback of 1624 multicast datagrams be disabled for best performance, as this 1625 will still cause the lock to be taken for each looped-back 1626 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1627 be tuned to 0 to disable loopback by default; it defaults to 1 1628 to preserve the existing behaviour. 1629 1630 For systems administrators, to obtain best performance with 1631 multicast reception and multiple groups, it is always recommended 1632 that a card with a suitably precise hash filter is used. Hash 1633 collisions will still result in the lock being taken within the 1634 transport protocol input path to check group membership. 1635 1636 If deploying FreeBSD in an environment with IGMP snooping switches, 1637 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1638 enabled; this forces 224.0.0.0/24 group membership to be announced 1639 via IGMP. 1640 1641 The size of 'struct igmpstat' has changed; netstat needs to be 1642 recompiled to reflect this. 1643 Bump __FreeBSD_version to 800070. 1644 164520090309: 1646 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1647 updated to use it. This requires a buildworld/installworld in order to 1648 update the library and dependencies (usbconfig, etc). Its advisable to 1649 rebuild all ports which uses libusb. More specific directions are given 1650 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1651 libusb are no longer required and can be removed. 1652 165320090302: 1654 A workaround is committed to allow the creation of System V shared 1655 memory segment of size > 2 GB on the 64-bit architectures. 1656 Due to a limitation of the existing ABI, the shm_segsz member 1657 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1658 wrong for large segments. Note that limits must be explicitly 1659 raised to allow such segments to be created. 1660 166120090301: 1662 The layout of struct ifnet has changed, requiring a rebuild of all 1663 network device driver modules. 1664 166520090227: 1666 The /dev handling for the new USB stack has changed, a 1667 buildworld/installworld is required for libusb20. 1668 166920090223: 1670 The new USB2 stack has now been permanently moved in and all kernel and 1671 module names reverted to their previous values (eg, usb, ehci, ohci, 1672 ums, ...). The old usb stack can be compiled in by prefixing the name 1673 with the letter 'o', the old usb modules have been removed. 1674 Updating entry 20090216 for xorg and 20090215 for libmap may still 1675 apply. 1676 167720090217: 1678 The rc.conf(5) option if_up_delay has been renamed to 1679 defaultroute_delay to better reflect its purpose. If you have 1680 customized this setting in /etc/rc.conf you need to update it to 1681 use the new name. 1682 168320090216: 1684 xorg 7.4 wants to configure its input devices via hald which does not 1685 yet work with USB2. If the keyboard/mouse does not work in xorg then 1686 add 1687 Option "AllowEmptyInput" "off" 1688 to your ServerLayout section. This will cause X to use the configured 1689 kbd and mouse sections from your xorg.conf. 1690 169120090215: 1692 The GENERIC kernels for all architectures now default to the new USB2 1693 stack. No kernel config options or code have been removed so if a 1694 problem arises please report it and optionally revert to the old USB 1695 stack. If you are loading USB kernel modules or have a custom kernel 1696 that includes GENERIC then ensure that usb names are also changed over, 1697 eg uftdi -> usb2_serial_ftdi. 1698 1699 Older programs linked against the ports libusb 0.1 need to be 1700 redirected to the new stack's libusb20. /etc/libmap.conf can 1701 be used for this: 1702 # Map old usb library to new one for usb2 stack 1703 libusb-0.1.so.8 libusb20.so.1 1704 170520090209: 1706 All USB ethernet devices now attach as interfaces under the name ueN 1707 (eg. ue0). This is to provide a predictable name as vendors often 1708 change usb chipsets in a product without notice. 1709 171020090203: 1711 The ichsmb(4) driver has been changed to require SMBus slave 1712 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1713 All of the other SMBus controller drivers require left-justified 1714 slave addresses, so this change makes all the drivers provide the 1715 same interface. 1716 171720090201: 1718 INET6 statistics (struct ip6stat) was updated. 1719 netstat(1) needs to be recompiled. 1720 172120090119: 1722 NTFS has been removed from GENERIC kernel on amd64 to match 1723 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1724 will load ntfs.ko module automatically when NTFS support is 1725 actually needed, unless ntfs.ko is not installed or security 1726 level prohibits loading kernel modules. If either is the case, 1727 "options NTFS" has to be added into kernel config. 1728 172920090115: 1730 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1731 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1732 800061. User space tools that rely on the size of struct tcpcb in 1733 tcp_var.h (e.g. sockstat) need to be recompiled. 1734 173520081225: 1736 ng_tty(4) module updated to match the new TTY subsystem. 1737 Due to API change, user-level applications must be updated. 1738 New API support added to mpd5 CVS and expected to be present 1739 in next mpd5.3 release. 1740 174120081219: 1742 With __FreeBSD_version 800060 the makefs tool is part of 1743 the base system (it was a port). 1744 174520081216: 1746 The afdata and ifnet locks have been changed from mutexes to 1747 rwlocks, network modules will need to be re-compiled. 1748 174920081214: 1750 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1751 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1752 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1753 architecture and 40 bytes on 64-bit architecture. The userland 1754 applications "arp" and "ndp" have been updated accordingly. 1755 The output from "netstat -r" shows only routing entries and 1756 none of the L2 information. 1757 175820081130: 1759 __FreeBSD_version 800057 marks the switchover from the 1760 binary ath hal to source code. Users must add the line: 1761 1762 options AH_SUPPORT_AR5416 1763 1764 to their kernel config files when specifying: 1765 1766 device ath_hal 1767 1768 The ath_hal module no longer exists; the code is now compiled 1769 together with the driver in the ath module. It is now 1770 possible to tailor chip support (i.e. reduce the set of chips 1771 and thereby the code size); consult ath_hal(4) for details. 1772 177320081121: 1774 __FreeBSD_version 800054 adds memory barriers to 1775 <machine/atomic.h>, new interfaces to ifnet to facilitate 1776 multiple hardware transmit queues for cards that support 1777 them, and a lock-less ring-buffer implementation to 1778 enable drivers to more efficiently manage queueing of 1779 packets. 1780 178120081117: 1782 A new version of ZFS (version 13) has been merged to -HEAD. 1783 This version has zpool attribute "listsnapshots" off by 1784 default, which means "zfs list" does not show snapshots, 1785 and is the same as Solaris behavior. 1786 178720081028: 1788 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1789 179020081009: 1791 The uhci, ohci, ehci and slhci USB Host controller drivers have 1792 been put into separate modules. If you load the usb module 1793 separately through loader.conf you will need to load the 1794 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1795 controller add the following to loader.conf: 1796 1797 uhci_load="YES" 1798 ehci_load="YES" 1799 180020081009: 1801 The ABI used by the PMC toolset has changed. Please keep 1802 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1803 sync. 1804 180520081009: 1806 atapci kernel module now includes only generic PCI ATA 1807 driver. AHCI driver moved to ataahci kernel module. 1808 All vendor-specific code moved into separate kernel modules: 1809 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1810 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1811 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1812 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1813 181420080820: 1815 The TTY subsystem of the kernel has been replaced by a new 1816 implementation, which provides better scalability and an 1817 improved driver model. Most common drivers have been migrated to 1818 the new TTY subsystem, while others have not. The following 1819 drivers have not yet been ported to the new TTY layer: 1820 1821 PCI/ISA: 1822 cy, digi, rc, rp, sio 1823 1824 USB: 1825 ubser, ucycom 1826 1827 Line disciplines: 1828 ng_h4, ng_tty, ppp, sl, snp 1829 1830 Adding these drivers to your kernel configuration file shall 1831 cause compilation to fail. 1832 183320080818: 1834 ntpd has been upgraded to 4.2.4p5. 1835 183620080801: 1837 OpenSSH has been upgraded to 5.1p1. 1838 1839 For many years, FreeBSD's version of OpenSSH preferred DSA 1840 over RSA for host and user authentication keys. With this 1841 upgrade, we've switched to the vendor's default of RSA over 1842 DSA. This may cause upgraded clients to warn about unknown 1843 host keys even for previously known hosts. Users should 1844 follow the usual procedure for verifying host keys before 1845 accepting the RSA key. 1846 1847 This can be circumvented by setting the "HostKeyAlgorithms" 1848 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1849 command line. 1850 1851 Please note that the sequence of keys offered for 1852 authentication has been changed as well. You may want to 1853 specify IdentityFile in a different order to revert this 1854 behavior. 1855 185620080713: 1857 The sio(4) driver has been removed from the i386 and amd64 1858 kernel configuration files. This means uart(4) is now the 1859 default serial port driver on those platforms as well. 1860 1861 To prevent collisions with the sio(4) driver, the uart(4) driver 1862 uses different names for its device nodes. This means the 1863 onboard serial port will now most likely be called "ttyu0" 1864 instead of "ttyd0". You may need to reconfigure applications to 1865 use the new device names. 1866 1867 When using the serial port as a boot console, be sure to update 1868 /boot/device.hints and /etc/ttys before booting the new kernel. 1869 If you forget to do so, you can still manually specify the hints 1870 at the loader prompt: 1871 1872 set hint.uart.0.at="isa" 1873 set hint.uart.0.port="0x3F8" 1874 set hint.uart.0.flags="0x10" 1875 set hint.uart.0.irq="4" 1876 boot -s 1877 187820080609: 1879 The gpt(8) utility has been removed. Use gpart(8) to partition 1880 disks instead. 1881 188220080603: 1883 The version that Linuxulator emulates was changed from 2.4.2 1884 to 2.6.16. If you experience any problems with Linux binaries 1885 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1886 if it fixes the problem contact emulation mailing list. 1887 188820080525: 1889 ISDN4BSD (I4B) was removed from the src tree. You may need to 1890 update a your kernel configuration and remove relevant entries. 1891 189220080509: 1893 I have checked in code to support multiple routing tables. 1894 See the man pages setfib(1) and setfib(2). 1895 This is a hopefully backwards compatible version, 1896 but to make use of it you need to compile your kernel 1897 with options ROUTETABLES=2 (or more up to 16). 1898 189920080420: 1900 The 802.11 wireless support was redone to enable multi-bss 1901 operation on devices that are capable. The underlying device 1902 is no longer used directly but instead wlanX devices are 1903 cloned with ifconfig. This requires changes to rc.conf files. 1904 For example, change: 1905 ifconfig_ath0="WPA DHCP" 1906 to 1907 wlans_ath0=wlan0 1908 ifconfig_wlan0="WPA DHCP" 1909 see rc.conf(5) for more details. In addition, mergemaster of 1910 /etc/rc.d is highly recommended. Simultaneous update of userland 1911 and kernel wouldn't hurt either. 1912 1913 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1914 modules were merged into the base wlan module. All references 1915 to these modules (e.g. in kernel config files) must be removed. 1916 191720080408: 1918 psm(4) has gained write(2) support in native operation level. 1919 Arbitrary commands can be written to /dev/psm%d and status can 1920 be read back from it. Therefore, an application is responsible 1921 for status validation and error recovery. It is a no-op in 1922 other operation levels. 1923 192420080312: 1925 Support for KSE threading has been removed from the kernel. To 1926 run legacy applications linked against KSE libmap.conf may 1927 be used. The following libmap.conf may be used to ensure 1928 compatibility with any prior release: 1929 1930 libpthread.so.1 libthr.so.1 1931 libpthread.so.2 libthr.so.2 1932 libkse.so.3 libthr.so.3 1933 193420080301: 1935 The layout of struct vmspace has changed. This affects libkvm 1936 and any executables that link against libkvm and use the 1937 kvm_getprocs() function. In particular, but not exclusively, 1938 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1939 The effects are minimal, but it's advisable to upgrade world 1940 nonetheless. 1941 194220080229: 1943 The latest em driver no longer has support in it for the 1944 82575 adapter, this is now moved to the igb driver. The 1945 split was done to make new features that are incompatible 1946 with older hardware easier to do. 1947 194820080220: 1949 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1950 likewise the kernel option is now GEOM_LINUX_LVM. 1951 195220080211: 1953 The default NFS mount mode has changed from UDP to TCP for 1954 increased reliability. If you rely on (insecurely) NFS 1955 mounting across a firewall you may need to update your 1956 firewall rules. 1957 195820080208: 1959 Belatedly note the addition of m_collapse for compacting 1960 mbuf chains. 1961 196220080126: 1963 The fts(3) structures have been changed to use adequate 1964 integer types for their members and so to be able to cope 1965 with huge file trees. The old fts(3) ABI is preserved 1966 through symbol versioning in libc, so third-party binaries 1967 using fts(3) should still work, although they will not take 1968 advantage of the extended types. At the same time, some 1969 third-party software might fail to build after this change 1970 due to unportable assumptions made in its source code about 1971 fts(3) structure members. Such software should be fixed 1972 by its vendor or, in the worst case, in the ports tree. 1973 FreeBSD_version 800015 marks this change for the unlikely 1974 case that a portable fix is impossible. 1975 197620080123: 1977 To upgrade to -current after this date, you must be running 1978 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1979 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1980 198120071128: 1982 The ADAPTIVE_GIANT kernel option has been retired because its 1983 functionality is the default now. 1984 198520071118: 1986 The AT keyboard emulation of sunkbd(4) has been turned on 1987 by default. In order to make the special symbols of the Sun 1988 keyboards driven by sunkbd(4) work under X these now have 1989 to be configured the same way as Sun USB keyboards driven 1990 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1991 1992 Option "XkbLayout" "us" 1993 Option "XkbRules" "xorg" 1994 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1995 199620071024: 1997 It has been decided that it is desirable to provide ABI 1998 backwards compatibility to the FreeBSD 4/5/6 versions of the 1999 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2000 broken with the introduction of PCI domain support (see the 2001 20070930 entry). Unfortunately, this required the ABI of 2002 PCIOCGETCONF to be broken again in order to be able to 2003 provide backwards compatibility to the old version of that 2004 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2005 again. As for prominent ports this affects neither pciutils 2006 nor xorg-server this time, the hal port needs to be rebuilt 2007 however. 2008 200920071020: 2010 The misnamed kthread_create() and friends have been renamed 2011 to kproc_create() etc. Many of the callers already 2012 used kproc_start().. 2013 I will return kthread_create() and friends in a while 2014 with implementations that actually create threads, not procs. 2015 Renaming corresponds with version 800002. 2016 201720071010: 2018 RELENG_7 branched. 2019 2020COMMON ITEMS: 2021 2022 General Notes 2023 ------------- 2024 Avoid using make -j when upgrading. While generally safe, there are 2025 sometimes problems using -j to upgrade. If your upgrade fails with 2026 -j, please try again without -j. From time to time in the past there 2027 have been problems using -j with buildworld and/or installworld. This 2028 is especially true when upgrading between "distant" versions (eg one 2029 that cross a major release boundary or several minor releases, or when 2030 several months have passed on the -current branch). 2031 2032 Sometimes, obscure build problems are the result of environment 2033 poisoning. This can happen because the make utility reads its 2034 environment when searching for values for global variables. To run 2035 your build attempts in an "environmental clean room", prefix all make 2036 commands with 'env -i '. See the env(1) manual page for more details. 2037 2038 When upgrading from one major version to another it is generally best 2039 to upgrade to the latest code in the currently installed branch first, 2040 then do an upgrade to the new branch. This is the best-tested upgrade 2041 path, and has the highest probability of being successful. Please try 2042 this approach before reporting problems with a major version upgrade. 2043 2044 When upgrading a live system, having a root shell around before 2045 installing anything can help undo problems. Not having a root shell 2046 around can lead to problems if pam has changed too much from your 2047 starting point to allow continued authentication after the upgrade. 2048 2049 ZFS notes 2050 --------- 2051 When upgrading the boot ZFS pool to a new version, always follow 2052 these two steps: 2053 2054 1.) recompile and reinstall the ZFS boot loader and boot block 2055 (this is part of "make buildworld" and "make installworld") 2056 2057 2.) update the ZFS boot block on your boot drive 2058 2059 The following example updates the ZFS boot block on the first 2060 partition (freebsd-boot) of a GPT partitioned drive ad0: 2061 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2062 2063 Non-boot pools do not need these updates. 2064 2065 To build a kernel 2066 ----------------- 2067 If you are updating from a prior version of FreeBSD (even one just 2068 a few days old), you should follow this procedure. It is the most 2069 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2070 2071 make kernel-toolchain 2072 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2073 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2074 2075 To test a kernel once 2076 --------------------- 2077 If you just want to boot a kernel once (because you are not sure 2078 if it works, or if you want to boot a known bad kernel to provide 2079 debugging information) run 2080 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2081 nextboot -k testkernel 2082 2083 To just build a kernel when you know that it won't mess you up 2084 -------------------------------------------------------------- 2085 This assumes you are already running a CURRENT system. Replace 2086 ${arch} with the architecture of your machine (e.g. "i386", 2087 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2088 2089 cd src/sys/${arch}/conf 2090 config KERNEL_NAME_HERE 2091 cd ../compile/KERNEL_NAME_HERE 2092 make depend 2093 make 2094 make install 2095 2096 If this fails, go to the "To build a kernel" section. 2097 2098 To rebuild everything and install it on the current system. 2099 ----------------------------------------------------------- 2100 # Note: sometimes if you are running current you gotta do more than 2101 # is listed here if you are upgrading from a really old current. 2102 2103 <make sure you have good level 0 dumps> 2104 make buildworld 2105 make kernel KERNCONF=YOUR_KERNEL_HERE 2106 [1] 2107 <reboot in single user> [3] 2108 mergemaster -p [5] 2109 make installworld 2110 mergemaster -i [4] 2111 make delete-old [6] 2112 <reboot> 2113 2114 To cross-install current onto a separate partition 2115 -------------------------------------------------- 2116 # In this approach we use a separate partition to hold 2117 # current's root, 'usr', and 'var' directories. A partition 2118 # holding "/", "/usr" and "/var" should be about 2GB in 2119 # size. 2120 2121 <make sure you have good level 0 dumps> 2122 <boot into -stable> 2123 make buildworld 2124 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2125 <maybe newfs current's root partition> 2126 <mount current's root partition on directory ${CURRENT_ROOT}> 2127 make installworld DESTDIR=${CURRENT_ROOT} 2128 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2129 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2130 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2131 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2132 <reboot into current> 2133 <do a "native" rebuild/install as described in the previous section> 2134 <maybe install compatibility libraries from ports/misc/compat*> 2135 <reboot> 2136 2137 2138 To upgrade in-place from stable to current 2139 ---------------------------------------------- 2140 <make sure you have good level 0 dumps> 2141 make buildworld [9] 2142 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2143 [1] 2144 <reboot in single user> [3] 2145 mergemaster -p [5] 2146 make installworld 2147 mergemaster -i [4] 2148 make delete-old [6] 2149 <reboot> 2150 2151 Make sure that you've read the UPDATING file to understand the 2152 tweaks to various things you need. At this point in the life 2153 cycle of current, things change often and you are on your own 2154 to cope. The defaults can also change, so please read ALL of 2155 the UPDATING entries. 2156 2157 Also, if you are tracking -current, you must be subscribed to 2158 freebsd-current@freebsd.org. Make sure that before you update 2159 your sources that you have read and understood all the recent 2160 messages there. If in doubt, please track -stable which has 2161 much fewer pitfalls. 2162 2163 [1] If you have third party modules, such as vmware, you 2164 should disable them at this point so they don't crash your 2165 system on reboot. 2166 2167 [3] From the bootblocks, boot -s, and then do 2168 fsck -p 2169 mount -u / 2170 mount -a 2171 cd src 2172 adjkerntz -i # if CMOS is wall time 2173 Also, when doing a major release upgrade, it is required that 2174 you boot into single user mode to do the installworld. 2175 2176 [4] Note: This step is non-optional. Failure to do this step 2177 can result in a significant reduction in the functionality of the 2178 system. Attempting to do it by hand is not recommended and those 2179 that pursue this avenue should read this file carefully, as well 2180 as the archives of freebsd-current and freebsd-hackers mailing lists 2181 for potential gotchas. The -U option is also useful to consider. 2182 See mergemaster(8) for more information. 2183 2184 [5] Usually this step is a noop. However, from time to time 2185 you may need to do this if you get unknown user in the following 2186 step. It never hurts to do it all the time. You may need to 2187 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2188 install) after the buildworld before this step if you last updated 2189 from current before 20130425 or from -stable before 20130430. 2190 2191 [6] This only deletes old files and directories. Old libraries 2192 can be deleted by "make delete-old-libs", but you have to make 2193 sure that no program is using those libraries anymore. 2194 2195 [8] In order to have a kernel that can run the 4.x binaries needed to 2196 do an installworld, you must include the COMPAT_FREEBSD4 option in 2197 your kernel. Failure to do so may leave you with a system that is 2198 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2199 required to run the 5.x binaries on more recent kernels. And so on 2200 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2201 2202 Make sure that you merge any new devices from GENERIC since the 2203 last time you updated your kernel config file. 2204 2205 [9] When checking out sources, you must include the -P flag to have 2206 cvs prune empty directories. 2207 2208 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2209 "?=" instead of the "=" assignment operator, so that buildworld can 2210 override the CPUTYPE if it needs to. 2211 2212 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2213 not on the command line, or in /etc/make.conf. buildworld will 2214 warn if it is improperly defined. 2215FORMAT: 2216 2217This file contains a list, in reverse chronological order, of major 2218breakages in tracking -current. It is not guaranteed to be a complete 2219list of such breakages, and only contains entries since October 10, 2007. 2220If you need to see UPDATING entries from before that date, you will need 2221to fetch an UPDATING file from an older FreeBSD release. 2222 2223Copyright information: 2224 2225Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2226 2227Redistribution, publication, translation and use, with or without 2228modification, in full or in part, in any form or format of this 2229document are permitted without further permission from the author. 2230 2231THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2232IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2233WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2234DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2235INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2236(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2237SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2238HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2239STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2240IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2241POSSIBILITY OF SUCH DAMAGE. 2242 2243Contact Warner Losh if you have any questions about your use of 2244this document. 2245 2246$FreeBSD: releng/10.2/UPDATING 287145 2015-08-25 20:48:51Z delphij $ 2247