UPDATING revision 317434
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 1920170413: 20 As of r316810 for ipfilter, keep frags is no longer assumed when 21 keep state is specified in a rule. r316810 aligns ipfilter with 22 documentation in man pages separating keep frags from keep state. 23 This allows keep state to specified without forcing keep frags 24 and allows keep frags to be specified independently of keep state. 25 To maintain previous behaviour, also specify keep frags with 26 keep state (as documented in ipf.conf.5). 27 2820170323: 29 The code that provides support for ZFS .zfs/ directory functionality 30 has been reimplemented. It's not possible now to create a snapshot 31 by mkdir under .zfs/snapshot/. That should be the only user visible 32 change. 33 3420160124: 35 The NONE and HPN patches has been removed from OpenSSH. They are 36 still available in the security/openssh-portable port. 37 3820151214: 39 r292223 changed the internal interface between the nfsd.ko and 40 nfscommon.ko modules. As such, they must both be upgraded to-gether. 41 __FreeBSD_version has been bumped because of this. 42 4320151113: 44 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 45 Kernel modules isp_2400_multi and isp_2500_multi were removed and 46 should be replaced with isp_2400 and isp_2500 modules respectively. 47 4820150806: 49 The menu.rc and loader.rc files will now be replaced during 50 upgrades. Please migrate local changes to menu.rc.local and 51 loader.rc.local instead. 52 5320151026: 54 NTP has been upgraded to 4.2.8p4. 55 5620151025: 57 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 58 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 59 and devel/kyua to version 0.20+ and adjust any calling code to work 60 with Kyuafile and kyua. 61 6220150823: 63 The polarity of Pulse Per Second (PPS) capture events with the 64 uart(4) driver has been corrected. Prior to this change the PPS 65 "assert" event corresponded to the trailing edge of a positive PPS 66 pulse and the "clear" event was the leading edge of the next pulse. 67 68 As the width of a PPS pulse in a typical GPS receiver is on the 69 order of 1 millisecond, most users will not notice any significant 70 difference with this change. 71 72 Anyone who has compensated for the historical polarity reversal by 73 configuring a negative offset equal to the pulse width will need to 74 remove that workaround. 75 7620150822: 77 From legacy ata(4) driver was removed support for SATA controllers 78 supported by more functional drivers ahci(4), siis(4) and mvs(4). 79 Kernel modules ataahci and ataadaptec were removed completely, 80 replaced by ahci and mvs modules respectively. 81 8220150813: 83 10.2-RELEASE. 84 8520150731: 86 As ZFS requires more kernel stack pages than is the default on some 87 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 88 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 89 90 Please consider using 'options KSTACK_PAGES=X' where X is greater 91 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 92 9320150703: 94 The default Unbound configuration now enables remote control 95 using a local socket. Users who have already enabled the 96 local_unbound service should regenerate their configuration 97 by running "service local_unbound setup" as root. 98 9920150624: 100 An additional fix for the issue described in the 20150614 sendmail 101 entry below has been been committed in revision 284786. 102 10320150615: 104 The fix for the issue described in the 20150614 sendmail entry 105 below has been been committed in revision 284485. The work 106 around described in that entry is no longer needed unless the 107 default setting is overridden by a confDH_PARAMETERS configuration 108 setting of '5' or pointing to a 512 bit DH parameter file. 109 11020150614: 111 The import of openssl to address the FreeBSD-SA-15:10.openssl 112 security advisory includes a change which rejects handshakes 113 with DH parameters below 768 bits. sendmail releases prior 114 to 8.15.2 (not yet released), defaulted to a 512 bit 115 DH parameter setting for client connections. To work around 116 this interoperability, sendmail can be configured to use a 117 2048 bit DH parameter by: 118 119 1. Edit /etc/mail/`hostname`.mc 120 2. If a setting for confDH_PARAMETERS does not exist or 121 exists and is set to a string beginning with '5', 122 replace it with '2'. 123 3. If a setting for confDH_PARAMETERS exists and is set to 124 a file path, create a new file with: 125 openssl dhparam -out /path/to/file 2048 126 4. Rebuild the .cf file: 127 cd /etc/mail/; make; make install 128 5. Restart sendmail: 129 cd /etc/mail/; make restart 130 131 A sendmail patch is coming, at which time this file will be 132 updated. 133 13420150601: 135 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 136 defined in symlink(7); previously symlinks were silently ignored. 137 13820150430: 139 The const qualifier has been removed from iconv(3) to comply with 140 POSIX. The ports tree is aware of this from r384038 onwards. 141 14220141215: 143 At svn r275807, The default linux compat kernel ABI has been adjusted 144 to 2.6.18 in support of the linux-c6 compat ports infrastructure 145 update. If you wish to continue using the linux-f10 compat ports, 146 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 147 encouraged to update their linux-compat packages to linux-c6 during 148 their next update cycle. 149 150 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 151 15220141205: 153 pjdfstest has been integrated into kyua as an opt-in test suite. 154 Please see share/doc/pjdfstest/README for a more details on how to 155 execute it. 156 15720141118: 158 10.1-RELEASE. 159 16020140904: 161 The ofwfb driver, used to provide a graphics console on PowerPC when 162 using vt(4), no longer allows mmap() of all of physical memory. This 163 will prevent Xorg on PowerPC with some ATI graphics cards from 164 initializing properly unless x11-servers/xorg-server is updated to 165 1.12.4_8 or newer. 166 16720140831: 168 The libatf-c and libatf-c++ major versions were downgraded to 0 and 169 1 respectively to match the upstream numbers. They were out of 170 sync because, when they were originally added to FreeBSD, the 171 upstream versions were not respected. These libraries are private 172 and not yet built by default, so renumbering them should be a 173 non-issue. However, unclean source trees will yield broken test 174 programs once the operator executes "make delete-old-libs" after a 175 "make installworld". 176 177 Additionally, the atf-sh binary was made private by moving it into 178 /usr/libexec/. Already-built shell test programs will keep the 179 path to the old binary so they will break after "make delete-old" 180 is run. 181 182 If you are using WITH_TESTS=yes (not the default), wipe the object 183 tree and rebuild from scratch to prevent spurious test failures. 184 This is only needed once: the misnumbered libraries and misplaced 185 binaries have been added to OptionalObsoleteFiles.inc so they will 186 be removed during a clean upgrade. 187 18820140814: 189 The ixgbe tunables now match their sysctl counterparts, for example: 190 hw.ixgbe.enable_aim => hw.ix.enable_aim 191 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 192 19320140801: 194 The NFSv4.1 server committed by r269398 changes the internal 195 function call interfaces used between the NFS and krpc modules. 196 As such, __FreeBSD_version was bumped. 197 19820140729: 199 The default unbound configuration has been modified to address 200 issues with reverse lookups on networks that use private 201 address ranges. If you use the local_unbound service, run 202 "service local_unbound setup" as root to regenerate your 203 configuration, then "service local_unbound reload" to load the 204 new configuration. 205 20620140717: 207 It is no longer necessary to include the dwarf version in your DEBUG 208 options in your kernel config file. The bug that required it to be 209 placed in the config file has bene fixed. DEBUG should now just 210 contain -g. The build system will automatically update things 211 to do the right thing. 212 21320140715: 214 Several ABI breaking changes were merged to CTL and new iSCSI code. 215 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 216 iscsictl need to be rebuilt to work with a new kernel. 217 21820140708: 219 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 220 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 221 which differs from the behaviour controlled by this knob.) 222 22320140608: 224 On i386 and amd64 systems, the onifconsole flag is now set by default 225 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 226 as a login TTY if it is set in the bootloader as an active kernel 227 console. No changes in behavior should result otherwise. To revert to 228 the previous behavior, set ttyu0 to "off" in /etc/ttys. 229 23020140512: 231 Clang and llvm have been upgraded to 3.4.1 release. 232 23320140321: 234 Clang and llvm have been upgraded to 3.4 release. 235 23620140306: 237 If a Makefile in a tests/ directory was auto-generating a Kyuafile 238 instead of providing an explicit one, this would prevent such 239 Makefile from providing its own Kyuafile in the future during 240 NO_CLEAN builds. This has been fixed in the Makefiles but manual 241 intervention is needed to clean an objdir if you use NO_CLEAN: 242 # find /usr/obj -name Kyuafile | xargs rm -f 243 24420140303: 245 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 246 capability mode support. Please note that enabling the feature in 247 kernel is still highly recommended. 248 24920140227: 250 OpenSSH is now built with sandbox support, and will use sandbox as 251 the default privilege separation method. This requires Capsicum 252 capability mode support in kernel. 253 25420140216: 255 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 256 been deprecated and will not be part of FreeBSD 11.0 and later 257 releases. If you use this driver, please consider switching to 258 the nfe(4) driver instead. 259 26020140120: 261 10.0-RELEASE. 262 26320131216: 264 The behavior of gss_pseudo_random() for the krb5 mechanism 265 has changed, for applications requesting a longer random string 266 than produced by the underlying enctype's pseudo-random() function. 267 In particular, the random string produced from a session key of 268 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 269 be different at the 17th octet and later, after this change. 270 The counter used in the PRF+ construction is now encoded as a 271 big-endian integer in accordance with RFC 4402. 272 __FreeBSD_version is bumped to 1000701. 273 27420131108: 275 The WITHOUT_ATF build knob has been removed and its functionality 276 has been subsumed into the more generic WITHOUT_TESTS. If you were 277 using the former to disable the build of the ATF libraries, you 278 should change your settings to use the latter. 279 28020131031: 281 The default version of mtree is nmtree which is obtained from 282 NetBSD. The output is generally the same, but may vary 283 slightly. If you found you need identical output adding 284 "-F freebsd9" to the command line should do the trick. For the 285 time being, the old mtree is available as fmtree. 286 28720131014: 288 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 289 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 290 1.1.4_8 and verify bsdyml not linked in, before running "make 291 delete-old-libs": 292 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 293 or 294 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 295 29620131010: 297 The rc.d/jail script has been updated to support jail(8) 298 configuration file. The "jail_<jname>_*" rc.conf(5) variables 299 for per-jail configuration are automatically converted to 300 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 301 This is transparently backward compatible. See below about some 302 incompatibilities and rc.conf(5) manual page for more details. 303 304 These variables are now deprecated in favor of jail(8) configuration 305 file. One can use "rc.d/jail config <jname>" command to generate 306 a jail(8) configuration file in /var/run/jail.<jname>.conf without 307 running the jail(8) utility. The default pathname of the 308 configuration file is /etc/jail.conf and can be specified by 309 using $jail_conf or $jail_<jname>_conf variables. 310 311 Please note that jail_devfs_ruleset accepts an integer at 312 this moment. Please consider to rewrite the ruleset name 313 with an integer. 314 31520130930: 316 BIND has been removed from the base system. If all you need 317 is a local resolver, simply enable and start the local_unbound 318 service instead. Otherwise, several versions of BIND are 319 available in the ports tree. The dns/bind99 port is one example. 320 321 With this change, nslookup(1) and dig(1) are no longer in the base 322 system. Users should instead use host(1) and drill(1) which are 323 in the base system. Alternatively, nslookup and dig can 324 be obtained by installing the dns/bind-tools port. 325 32620130916: 327 With the addition of unbound(8), a new unbound user is now 328 required during installworld. "mergemaster -p" can be used to 329 add the user prior to installworld, as documented in the handbook. 330 33120130911: 332 OpenSSH is now built with DNSSEC support, and will by default 333 silently trust signed SSHFP records. This can be controlled with 334 the VerifyHostKeyDNS client configuration setting. DNSSEC support 335 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 336 33720130906: 338 The GNU Compiler Collection and C++ standard library (libstdc++) 339 are no longer built by default on platforms where clang is the system 340 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 341 options in src.conf. 342 34320130905: 344 The PROCDESC kernel option is now part of the GENERIC kernel 345 configuration and is required for the rwhod(8) to work. 346 If you are using custom kernel configuration, you should include 347 'options PROCDESC'. 348 34920130905: 350 The API and ABI related to the Capsicum framework was modified 351 in backward incompatible way. The userland libraries and programs 352 have to be recompiled to work with the new kernel. This includes the 353 following libraries and programs, but the whole buildworld is 354 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 355 kdump, procstat, rwho, rwhod, uniq. 356 35720130903: 358 AES-NI intrinsic support has been added to gcc. The AES-NI module 359 has been updated to use this support. A new gcc is required to build 360 the aesni module on both i386 and amd64. 361 36220130821: 363 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 364 Thus "device padlock_rng" and "device rdrand_rng" should be 365 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 366 36720130813: 368 WITH_ICONV has been split into two feature sets. WITH_ICONV now 369 enables just the iconv* functionality and is now on by default. 370 WITH_LIBICONV_COMPAT enables the libiconv api and link time 371 compatability. Set WITHOUT_ICONV to build the old way. 372 If you have been using WITH_ICONV before, you will very likely 373 need to turn on WITH_LIBICONV_COMPAT. 374 37520130806: 376 INVARIANTS option now enables DEBUG for code with OpenSolaris and 377 Illumos origin, including ZFS. If you have INVARIANTS in your 378 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 379 explicitly. 380 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 381 locks if WITNESS option was set. Because that generated a lot of 382 witness(9) reports and all of them were believed to be false 383 positives, this is no longer done. New option OPENSOLARIS_WITNESS 384 can be used to achieve the previous behavior. 385 38620130806: 387 Timer values in IPv6 data structures now use time_uptime instead 388 of time_second. Although this is not a user-visible functional 389 change, userland utilities which directly use them---ndp(8), 390 rtadvd(8), and rtsold(8) in the base system---need to be updated 391 to r253970 or later. 392 39320130802: 394 find -delete can now delete the pathnames given as arguments, 395 instead of only files found below them or if the pathname did 396 not contain any slashes. Formerly, the following error message 397 would result: 398 399 find: -delete: <path>: relative path potentially not safe 400 401 Deleting the pathnames given as arguments can be prevented 402 without error messages using -mindepth 1 or by changing 403 directory and passing "." as argument to find. This works in the 404 old as well as the new version of find. 405 40620130726: 407 Behavior of devfs rules path matching has been changed. 408 Pattern is now always matched against fully qualified devfs 409 path and slash characters must be explicitly matched by 410 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 411 subdirectories must be reviewed. 412 41320130716: 414 The default ARM ABI has changed to the ARM EABI. The old ABI is 415 incompatible with the ARM EABI and all programs and modules will 416 need to be rebuilt to work with a new kernel. 417 418 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 419 420 NOTE: Support for the old ABI will be removed in the future and 421 users are advised to upgrade. 422 42320130709: 424 pkg_install has been disconnected from the build if you really need it 425 you should add WITH_PKGTOOLS in your src.conf(5). 426 42720130709: 428 Most of network statistics structures were changed to be able 429 keep 64-bits counters. Thus all tools, that work with networking 430 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 431 43220130618: 433 Fix a bug that allowed a tracing process (e.g. gdb) to write 434 to a memory-mapped file in the traced process's address space 435 even if neither the traced process nor the tracing process had 436 write access to that file. 437 43820130615: 439 CVS has been removed from the base system. An exact copy 440 of the code is available from the devel/cvs port. 441 44220130613: 443 Some people report the following error after the switch to bmake: 444 445 make: illegal option -- J 446 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 447 ... 448 *** [buildworld] Error code 2 449 450 this likely due to an old instance of make in 451 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 452 which src/Makefile will use that blindly, if it exists, so if 453 you see the above error: 454 455 rm -rf `make -V MAKEPATH` 456 457 should resolve it. 458 45920130516: 460 Use bmake by default. 461 Whereas before one could choose to build with bmake via 462 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 463 make. The goal is to remove these knobs for 10-RELEASE. 464 465 It is worth noting that bmake (like gmake) treats the command 466 line as the unit of failure, rather than statements within the 467 command line. Thus '(cd some/where && dosomething)' is safer 468 than 'cd some/where; dosomething'. The '()' allows consistent 469 behavior in parallel build. 470 47120130429: 472 Fix a bug that allows NFS clients to issue READDIR on files. 473 47420130426: 475 The WITHOUT_IDEA option has been removed because 476 the IDEA patent expired. 477 47820130426: 479 The sysctl which controls TRIM support under ZFS has been renamed 480 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 481 enabled by default. 482 48320130425: 484 The mergemaster command now uses the default MAKEOBJDIRPREFIX 485 rather than creating it's own in the temporary directory in 486 order allow access to bootstrapped versions of tools such as 487 install and mtree. When upgrading from version of FreeBSD where 488 the install command does not support -l, you will need to 489 install a new mergemaster command if mergemaster -p is required. 490 This can be accomplished with the command (cd src/usr.sbin/mergemaster 491 && make install). 492 49320130404: 494 Legacy ATA stack, disabled and replaced by new CAM-based one since 495 FreeBSD 9.0, completely removed from the sources. Kernel modules 496 atadisk and atapi*, user-level tools atacontrol and burncd are 497 removed. Kernel option `options ATA_CAM` is now permanently enabled 498 and removed. 499 50020130319: 501 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 502 and socketpair(2). Software, in particular Kerberos, may 503 automatically detect and use these during building. The resulting 504 binaries will not work on older kernels. 505 50620130308: 507 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 508 information, see the respective 20130304 entry). 509 51020130304: 511 Recent commits to callout(9) changed the size of struct callout, 512 so the KBI is probably heavily disturbed. Also, some functions 513 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 514 by macros. Every kernel module using it won't load, so rebuild 515 is requested. 516 517 The ctl device has been re-enabled in GENERIC for i386 and amd64, 518 but does not initialize by default (because of the new CTL_DISABLE 519 option) to save memory. To re-enable it, remove the CTL_DISABLE 520 option from the kernel config file or set kern.cam.ctl.disable=0 521 in /boot/loader.conf. 522 52320130301: 524 The ctl device has been disabled in GENERIC for i386 and amd64. 525 This was done due to the extra memory being allocated at system 526 initialisation time by the ctl driver which was only used if 527 a CAM target device was created. This makes a FreeBSD system 528 unusable on 128MB or less of RAM. 529 53020130208: 531 A new compression method (lz4) has been merged to -HEAD. Please 532 refer to zpool-features(7) for more information. 533 534 Please refer to the "ZFS notes" section of this file for information 535 on upgrading boot ZFS pools. 536 53720130129: 538 A BSD-licensed patch(1) variant has been added and is installed 539 as bsdpatch, being the GNU version the default patch. 540 To inverse the logic and use the BSD-licensed one as default, 541 while having the GNU version installed as gnupatch, rebuild 542 and install world with the WITH_BSD_PATCH knob set. 543 54420130121: 545 Due to the use of the new -l option to install(1) during build 546 and install, you must take care not to directly set the INSTALL 547 make variable in your /etc/make.conf, /etc/src.conf, or on the 548 command line. If you wish to use the -C flag for all installs 549 you may be able to add INSTALL+=-C to /etc/make.conf or 550 /etc/src.conf. 551 55220130118: 553 The install(1) option -M has changed meaning and now takes an 554 argument that is a file or path to append logs to. In the 555 unlikely event that -M was the last option on the command line 556 and the command line contained at least two files and a target 557 directory the first file will have logs appended to it. The -M 558 option served little practical purpose in the last decade so its 559 use is expected to be extremely rare. 560 56120121223: 562 After switching to Clang as the default compiler some users of ZFS 563 on i386 systems started to experience stack overflow kernel panics. 564 Please consider using 'options KSTACK_PAGES=4' in such configurations. 565 56620121222: 567 GEOM_LABEL now mangles label names read from file system metadata. 568 Mangling affect labels containing spaces, non-printable characters, 569 '%' or '"'. Device names in /etc/fstab and other places may need to 570 be updated. 571 57220121217: 573 By default, only the 10 most recent kernel dumps will be saved. To 574 restore the previous behaviour (no limit on the number of kernel dumps 575 stored in the dump directory) add the following line to /etc/rc.conf: 576 577 savecore_flags="" 578 57920121201: 580 With the addition of auditdistd(8), a new auditdistd user is now 581 required during installworld. "mergemaster -p" can be used to 582 add the user prior to installworld, as documented in the handbook. 583 58420121117: 585 The sin6_scope_id member variable in struct sockaddr_in6 is now 586 filled by the kernel before passing the structure to the userland via 587 sysctl or routing socket. This means the KAME-specific embedded scope 588 id in sin6_addr.s6_addr[2] is always cleared in userland application. 589 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 590 __FreeBSD_version is bumped to 1000025. 591 59220121105: 593 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 594 This means that the world and kernel will be compiled with clang 595 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 596 and /usr/bin/cpp. To disable this behavior and revert to building 597 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 598 of current may need to bootstrap WITHOUT_CLANG first if the clang 599 build fails (its compatibility window doesn't extend to the 9 stable 600 branch point). 601 60220121102: 603 The IPFIREWALL_FORWARD kernel option has been removed. Its 604 functionality now turned on by default. 605 60620121023: 607 The ZERO_COPY_SOCKET kernel option has been removed and 608 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 609 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 610 mechanism which is not safe and may result in kernel crashes. 611 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 612 driver supports disposeable external page sized mbuf storage. 613 Proper replacements for both zero-copy mechanisms are under 614 consideration and will eventually lead to complete removal 615 of the two kernel options. 616 61720121023: 618 The IPv4 network stack has been converted to network byte 619 order. The following modules need to be recompiled together 620 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 621 pf(4), ipfw(4), ng_ipfw(4), stf(4). 622 62320121022: 624 Support for non-MPSAFE filesystems was removed from VFS. The 625 VFS_VERSION was bumped, all filesystem modules shall be 626 recompiled. 627 62820121018: 629 All the non-MPSAFE filesystems have been disconnected from 630 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 631 portalfs, smbfs, xfs. 632 63320121016: 634 The interface cloning API and ABI has changed. The following 635 modules need to be recompiled together with kernel: 636 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 637 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 638 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 639 64020121015: 641 The sdhci driver was split in two parts: sdhci (generic SD Host 642 Controller logic) and sdhci_pci (actual hardware driver). 643 No kernel config modifications are required, but if you 644 load sdhc as a module you must switch to sdhci_pci instead. 645 64620121014: 647 Import the FUSE kernel and userland support into base system. 648 64920121013: 650 The GNU sort(1) program has been removed since the BSD-licensed 651 sort(1) has been the default for quite some time and no serious 652 problems have been reported. The corresponding WITH_GNU_SORT 653 knob has also gone. 654 65520121006: 656 The pfil(9) API/ABI for AF_INET family has been changed. Packet 657 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 658 with new kernel. 659 66020121001: 661 The net80211(4) ABI has been changed to allow for improved driver 662 PS-POLL and power-save support. All wireless drivers need to be 663 recompiled to work with the new kernel. 664 66520120913: 666 The random(4) support for the VIA hardware random number 667 generator (`PADLOCK') is no longer enabled unconditionally. 668 Add the padlock_rng device in the custom kernel config if 669 needed. The GENERIC kernels on i386 and amd64 do include the 670 device, so the change only affects the custom kernel 671 configurations. 672 67320120908: 674 The pf(4) packet filter ABI has been changed. pfctl(8) and 675 snmp_pf module need to be recompiled to work with new kernel. 676 67720120828: 678 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 679 to -HEAD. Pools that have empty_bpobj in active state can not be 680 imported read-write with ZFS implementations that do not support 681 this feature. For more information read the zpool-features(5) 682 manual page. 683 68420120727: 685 The sparc64 ZFS loader has been changed to no longer try to auto- 686 detect ZFS providers based on diskN aliases but now requires these 687 to be explicitly listed in the OFW boot-device environment variable. 688 68920120712: 690 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 691 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 692 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 693 69420120712: 695 The following sysctls and tunables have been renamed for consistency 696 with other variables: 697 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 698 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 699 70020120628: 701 The sort utility has been replaced with BSD sort. For now, GNU sort 702 is also available as "gnusort" or the default can be set back to 703 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 704 installed as "bsdsort". 705 70620120611: 707 A new version of ZFS (pool version 5000) has been merged to -HEAD. 708 Starting with this version the old system of ZFS pool versioning 709 is superseded by "feature flags". This concept enables forward 710 compatibility against certain future changes in functionality of ZFS 711 pools. The first read-only compatible "feature flag" for ZFS pools 712 is named "com.delphix:async_destroy". For more information 713 read the new zpool-features(5) manual page. 714 Please refer to the "ZFS notes" section of this file for information 715 on upgrading boot ZFS pools. 716 71720120417: 718 The malloc(3) implementation embedded in libc now uses sources imported 719 as contrib/jemalloc. The most disruptive API change is to 720 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 721 delete it prior to installworld, and optionally re-create it using the 722 new format after rebooting. See malloc.conf(5) for details 723 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 724 NAMESPACE section). 725 72620120328: 727 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 728 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 729 now spelled mips. This is to aid compatibility with third-party 730 software that expects this naming scheme in uname(3). Little-endian 731 settings are unchanged. If you are updating a big-endian mips64 machine 732 from before this change, you may need to set MACHINE_ARCH=mips64 in 733 your environment before the new build system will recognize your machine. 734 73520120306: 736 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 737 platforms. 738 73920120229: 740 Now unix domain sockets behave "as expected" on nullfs(5). Previously 741 nullfs(5) did not pass through all behaviours to the underlying layer, 742 as a result if we bound to a socket on the lower layer we could connect 743 only to the lower path; if we bound to the upper layer we could connect 744 only to the upper path. The new behavior is one can connect to both the 745 lower and the upper paths regardless what layer path one binds to. 746 74720120211: 748 The getifaddrs upgrade path broken with 20111215 has been restored. 749 If you have upgraded in between 20111215 and 20120209 you need to 750 recompile libc again with your kernel. You still need to recompile 751 world to be able to configure CARP but this restriction already 752 comes from 20111215. 753 75420120114: 755 The set_rcvar() function has been removed from /etc/rc.subr. All 756 base and ports rc.d scripts have been updated, so if you have a 757 port installed with a script in /usr/local/etc/rc.d you can either 758 hand-edit the rcvar= line, or reinstall the port. 759 760 An easy way to handle the mass-update of /etc/rc.d: 761 rm /etc/rc.d/* && mergemaster -i 762 76320120109: 764 panic(9) now stops other CPUs in the SMP systems, disables interrupts 765 on the current CPU and prevents other threads from running. 766 This behavior can be reverted using the kern.stop_scheduler_on_panic 767 tunable/sysctl. 768 The new behavior can be incompatible with kern.sync_on_panic. 769 77020111215: 771 The carp(4) facility has been changed significantly. Configuration 772 of the CARP protocol via ifconfig(8) has changed, as well as format 773 of CARP events submitted to devd(8) has changed. See manual pages 774 for more information. The arpbalance feature of carp(4) is currently 775 not supported anymore. 776 777 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 778 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 779 need to be recompiled. 780 78120111122: 782 The acpi_wmi(4) status device /dev/wmistat has been renamed to 783 /dev/wmistat0. 784 78520111108: 786 The option VFS_ALLOW_NONMPSAFE option has been added in order to 787 explicitely support non-MPSAFE filesystems. 788 It is on by default for all supported platform at this present 789 time. 790 79120111101: 792 The broken amd(4) driver has been replaced with esp(4) in the amd64, 793 i386 and pc98 GENERIC kernel configuration files. 794 79520110930: 796 sysinstall has been removed 797 79820110923: 799 The stable/9 branch created in subversion. This corresponds to the 800 RELENG_9 branch in CVS. 801 80220110913: 803 This commit modifies vfs_register() so that it uses a hash 804 calculation to set vfc_typenum, which is enabled by default. 805 The first time a system is booted after this change, the 806 vfc_typenum values will change for all file systems. The 807 main effect of this is a change to the NFS server file handles 808 for file systems that use vfc_typenum in their fsid, such as ZFS. 809 It will, however, prevent vfc_typenum from changing when file 810 systems are loaded in a different order for subsequent reboots. 811 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 812 until you are ready to remount all NFS clients after a reboot. 813 81420110828: 815 Bump the shared library version numbers for libraries that 816 do not use symbol versioning, have changed the ABI compared 817 to stable/8 and which shared library version was not bumped. 818 Done as part of 9.0-RELEASE cycle. 819 82020110815: 821 During the merge of Capsicum features, the fget(9) KPI was modified. 822 This may require the rebuilding of out-of-tree device drivers -- 823 issues have been reported specifically with the nVidia device driver. 824 __FreeBSD_version is bumped to 900041. 825 826 Also, there is a period between 20110811 and 20110814 where the 827 special devices /dev/{stdin,stdout,stderr} did not work correctly. 828 Building world from a kernel during that window may not work. 829 83020110628: 831 The packet filter (pf) code has been updated to OpenBSD 4.5. 832 You need to update userland tools to be in sync with kernel. 833 This update breaks backward compatibility with earlier pfsync(4) 834 versions. Care must be taken when updating redundant firewall setups. 835 83620110608: 837 The following sysctls and tunables are retired on x86 platforms: 838 machdep.hlt_cpus 839 machdep.hlt_logical_cpus 840 The following sysctl is retired: 841 machdep.hyperthreading_allowed 842 The sysctls were supposed to provide a way to dynamically offline and 843 online selected CPUs on x86 platforms, but the implementation has not 844 been reliable especially with SCHED_ULE scheduler. 845 machdep.hyperthreading_allowed tunable is still available to ignore 846 hyperthreading CPUs at OS level. 847 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 848 where X is an APIC ID of a CPU. Be advised, though, that disabling 849 CPUs in non-uniform fashion will result in non-uniform topology and 850 may lead to sub-optimal system performance with SCHED_ULE, which is 851 a default scheduler. 852 85320110607: 854 cpumask_t type is retired and cpuset_t is used in order to describe 855 a mask of CPUs. 856 85720110531: 858 Changes to ifconfig(8) for dynamic address family detection mandate 859 that you are running a kernel of 20110525 or later. Make sure to 860 follow the update procedure to boot a new kernel before installing 861 world. 862 86320110513: 864 Support for sun4v architecture is officially dropped 865 86620110503: 867 Several KPI breaking changes have been committed to the mii(4) layer, 868 the PHY drivers and consequently some Ethernet drivers using mii(4). 869 This means that miibus.ko and the modules of the affected Ethernet 870 drivers need to be recompiled. 871 872 Note to kernel developers: Given that the OUI bit reversion problem 873 was fixed as part of these changes all mii(4) commits related to OUIs, 874 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 875 handling, no longer can be merged verbatim to stable/8 and previous 876 branches. 877 87820110430: 879 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 880 into their kernel configurations along with 'device pci'. 881 88220110427: 883 The default NFS client is now the new NFS client, so fstype "newnfs" 884 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 885 Although mounts via fstype "nfs" will usually work without userland 886 changes, it is recommended that the mount(8) and mount_nfs(8) 887 commands be rebuilt from sources and that a link to mount_nfs called 888 mount_oldnfs be created. The new client is compiled into the 889 kernel with "options NFSCL" and this is needed for diskless root 890 file systems. The GENERIC kernel configs have been changed to use 891 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 892 To use the regular/old client, you can "mount -t oldnfs ...". For 893 a diskless root file system, you must also include a line like: 894 895 vfs.root.mountfrom="oldnfs:" 896 897 in the boot/loader.conf on the root fs on the NFS server to make 898 a diskless root fs use the old client. 899 90020110424: 901 The GENERIC kernels for all architectures now default to the new 902 CAM-based ATA stack. It means that all legacy ATA drivers were 903 removed and replaced by respective CAM drivers. If you are using 904 ATA device names in /etc/fstab or other places, make sure to update 905 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 906 where 'Y's are the sequential numbers starting from zero for each type 907 in order of detection, unless configured otherwise with tunables, 908 see cam(4)). There will be symbolic links created in /dev/ to map 909 old adX devices to the respective adaY. They should provide basic 910 compatibility for file systems mounting in most cases, but they do 911 not support old user-level APIs and do not have respective providers 912 in GEOM. Consider using updated management tools with new device names. 913 914 It is possible to load devices ahci, ata, siis and mvs as modules, 915 but option ATA_CAM should remain in kernel configuration to make ata 916 module work as CAM driver supporting legacy ATA controllers. Device ata 917 still can be used in modular fashion (atacore + ...). Modules atadisk 918 and atapi* are not used and won't affect operation in ATA_CAM mode. 919 Note that to use CAM-based ATA kernel should include CAM devices 920 scbus, pass, da (or explicitly ada), cd and optionally others. All of 921 them are parts of the cam module. 922 923 ataraid(4) functionality is now supported by the RAID GEOM class. 924 To use it you can load geom_raid kernel module and use graid(8) tool 925 for management. Instead of /dev/arX device names, use /dev/raid/rX. 926 927 No kernel config options or code have been removed, so if a problem 928 arises, please report it and optionally revert to the old ATA stack. 929 In order to do it you can remove from the kernel config: 930 options ATA_CAM 931 device ahci 932 device mvs 933 device siis 934 , and instead add back: 935 device atadisk # ATA disk drives 936 device ataraid # ATA RAID drives 937 device atapicd # ATAPI CDROM drives 938 device atapifd # ATAPI floppy drives 939 device atapist # ATAPI tape drives 940 94120110423: 942 The default NFS server has been changed to the new server, which 943 was referred to as the experimental server. If you need to switch 944 back to the old NFS server, you must now put the "-o" option on 945 both the mountd and nfsd commands. This can be done using the 946 mountd_flags and nfs_server_flags rc.conf variables until an 947 update to the rc scripts is committed, which is coming soon. 948 94920110418: 950 The GNU Objective-C runtime library (libobjc), and other Objective-C 951 related components have been removed from the base system. If you 952 require an Objective-C library, please use one of the available ports. 953 95420110331: 955 ath(4) has been split into bus- and device- modules. if_ath contains 956 the HAL, the TX rate control and the network device code. if_ath_pci 957 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 958 contains the AHB glue. Users need to load both if_ath_pci and if_ath 959 in order to use ath on everything else. 960 961 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 962 need to load if_ath and if_ath_pci for ath(4) operation. 963 96420110314: 965 As part of the replacement of sysinstall, the process of building 966 release media has changed significantly. For details, please re-read 967 release(7), which has been updated to reflect the new build process. 968 96920110218: 970 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 971 is the last available version under GPLv2. It brings a number of new 972 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 973 4.1 and SSE 4.2), better support for powerpc64, a number of new 974 directives, and lots of other small improvements. See the ChangeLog 975 file in contrib/binutils for the full details. 976 97720110218: 978 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 979 compliant, and will now use half of hash for authentication. 980 This will break interoperability with all stacks (including all 981 actual FreeBSD versions) who implement 982 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 983 authentication). 984 The only workaround with such peers is to use another HMAC 985 algorithm for IPsec ("phase 2") authentication. 986 98720110207: 988 Remove the uio_yield prototype and symbol. This function has 989 been misnamed since it was introduced and should not be 990 globally exposed with this name. The equivalent functionality 991 is now available using kern_yield(curthread->td_user_pri). 992 The function remains undocumented. 993 99420110112: 995 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 996 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 997 for scalar sysctls is defined but disabled. Code that needs 998 UQUAD to pass the type checking that must compile on older 999 systems where the define is not present can check against 1000 __FreeBSD_version >= 900030. 1001 1002 The system dialog(1) has been replaced with a new version previously 1003 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1004 with the previous version, but the libdialog associated with it has 1005 a largely incompatible API. As such, the original version of libdialog 1006 will be kept temporarily as libodialog, until its base system consumers 1007 are replaced or updated. Bump __FreeBSD_version to 900030. 1008 100920110103: 1010 If you are trying to run make universe on a -stable system, and you get 1011 the following warning: 1012 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1013 unknown. config(8) likely too old." 1014 or something similar to it, then you must upgrade your -stable system 1015 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1016 stable/8) or build the config from the latest stable/8 branch and 1017 install it on your system. 1018 1019 Prior to this date, building a current universe on 8-stable system from 1020 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1021 error in the first kernel build phase. A new config on those old 1022 systems will fix that problem for older versions of -current. 1023 102420101228: 1025 The TCP stack has been modified to allow Khelp modules to interact with 1026 it via helper hook points and store per-connection data in the TCP 1027 control block. Bump __FreeBSD_version to 900029. User space tools that 1028 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1029 be recompiled. 1030 103120101114: 1032 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1033 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1034 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1035 to take advantage of it instead of using custom implementations. This 1036 means that these drivers now no longer unconditionally advertise 1037 support for flow control but only do so if flow control is a selected 1038 media option. This was implemented in the generic support that way in 1039 order to allow flow control to be switched on and off via ifconfig(8) 1040 with the PHY specific default to typically off in order to protect 1041 from unwanted effects. Consequently, if you used flow control with 1042 one of the above mentioned drivers you now need to explicitly enable 1043 it, for example via: 1044 ifconfig bge0 media auto mediaopt flowcontrol 1045 1046 Along with the above mentioned changes generic support for setting 1047 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1048 e1000phy(4) as well as ip1000phy(4) have been converted to take 1049 advantage of it. This means that these drivers now no longer take the 1050 link0 parameter for selecting master mode but the master media option 1051 has to be used instead, for example like in the following: 1052 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1053 1054 Selection of master mode now is also available with all other PHY 1055 drivers supporting 1000baseT. 1056 105720101111: 1058 The TCP stack has received a significant update to add support for 1059 modularised congestion control and generally improve the clarity of 1060 congestion control decisions. Bump __FreeBSD_version to 900025. User 1061 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1062 sockstat) need to be recompiled. 1063 106420101002: 1065 The man(1) utility has been replaced by a new version that no longer 1066 uses /etc/manpath.config. Please consult man.conf(5) for how to 1067 migrate local entries to the new format. 1068 106920100928: 1070 The copyright strings printed by login(1) and sshd(8) at the time of a 1071 new connection have been removed to follow other operating systems and 1072 upstream sshd. 1073 107420100915: 1075 A workaround for a fixed ld bug has been removed in kernel code, 1076 so make sure that your system ld is built from sources after 1077 revision 210245 from 2010-07-19 (r211583 if building head kernel 1078 on stable/8, r211584 for stable/7; both from 2010-08-21). 1079 A symptom of incorrect ld version is different addresses for 1080 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1081 108220100913: 1083 The $ipv6_prefer variable in rc.conf(5) has been split into 1084 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1085 1086 The $ip6addrctl_policy is a variable to choose a pre-defined 1087 address selection policy set by ip6addrctl(8). A value 1088 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1089 default is "AUTO". 1090 1091 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1092 flag (see an entry of 20090926) is set on an interface with no 1093 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1094 security reason. If you want IPv6 link-local address on all 1095 interfaces by default, set this to "YES". 1096 1097 The old ipv6_prefer="YES" is equivalent to 1098 ipv6_activate_all_interfaces="YES" and 1099 ip6addrctl_policy="ipv6_prefer". 1100 110120100913: 1102 DTrace has grown support for userland tracing. Due to this, DTrace is 1103 now i386 and amd64 only. 1104 dtruss(1) is now installed by default on those systems and a new 1105 kernel module is needed for userland tracing: fasttrap. 1106 No changes to your kernel config file are necessary to enable 1107 userland tracing, but you might consider adding 'STRIP=' and 1108 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1109 to have informative userland stack traces in DTrace (ustack). 1110 111120100725: 1112 The acpi_aiboost(4) driver has been removed in favor of the new 1113 aibs(4) driver. You should update your kernel configuration file. 1114 111520100722: 1116 BSD grep has been imported to the base system and it is built by 1117 default. It is completely BSD licensed, highly GNU-compatible, uses 1118 less memory than its GNU counterpart and has a small codebase. 1119 However, it is slower than its GNU counterpart, which is mostly 1120 noticeable for larger searches, for smaller ones it is measurable 1121 but not significant. The reason is complex, the most important factor 1122 is that we lack a modern and efficient regex library and GNU 1123 overcomes this by optimizing the searches internally. Future work 1124 on improving the regex performance is planned, for the meantime, 1125 users that need better performance, can build GNU grep instead by 1126 setting the WITH_GNU_GREP knob. 1127 112820100713: 1129 Due to the import of powerpc64 support, all existing powerpc kernel 1130 configuration files must be updated with a machine directive like this: 1131 machine powerpc powerpc 1132 1133 In addition, an updated config(8) is required to build powerpc kernels 1134 after this change. 1135 113620100713: 1137 A new version of ZFS (version 15) has been merged to -HEAD. 1138 This version uses a python library for the following subcommands: 1139 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1140 For full functionality of these commands the following port must 1141 be installed: sysutils/py-zfs 1142 114320100429: 1144 'vm_page's are now hashed by physical address to an array of mutexes. 1145 Currently this is only used to serialize access to hold_count. Over 1146 time the page queue mutex will be peeled away. This changes the size 1147 of pmap on every architecture. And requires all callers of vm_page_hold 1148 and vm_page_unhold to be updated. 1149 115020100402: 1151 WITH_CTF can now be specified in src.conf (not recommended, there 1152 are some problems with static executables), make.conf (would also 1153 affect ports which do not use GNU make and do not override the 1154 compile targets) or in the kernel config (via "makeoptions 1155 WITH_CTF=yes"). 1156 When WITH_CTF was specified there before this was silently ignored, 1157 so make sure that WITH_CTF is not used in places which could lead 1158 to unwanted behavior. 1159 116020100311: 1161 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1162 to allow 32-bit compatibility on non-x86 platforms. All kernel 1163 configurations on amd64 and ia64 platforms using these options must 1164 be modified accordingly. 1165 116620100113: 1167 The utmp user accounting database has been replaced with utmpx, 1168 the user accounting interface standardized by POSIX. 1169 Unfortunately the semantics of utmp and utmpx don't match, 1170 making it practically impossible to support both interfaces. 1171 The user accounting database is used by tools like finger(1), 1172 last(1), talk(1), w(1) and ac(8). 1173 1174 All applications in the base system use utmpx. This means only 1175 local binaries (e.g. from the ports tree) may still use these 1176 utmp database files. These applications must be rebuilt to make 1177 use of utmpx. 1178 1179 After the system has been upgraded, it is safe to remove the old 1180 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1181 assuming their contents is of no importance anymore. Old wtmp 1182 databases can only be used by last(1) and ac(8) after they have 1183 been converted to the new format using wtmpcvt(1). 1184 118520100108: 1186 Introduce the kernel thread "deadlock resolver" (which can be enabled 1187 via the DEADLKRES option, see NOTES for more details) and the 1188 sleepq_type() function for sleepqueues. 1189 119020091202: 1191 The rc.firewall and rc.firewall6 were unified, and 1192 rc.firewall6 and rc.d/ip6fw were removed. 1193 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1194 variables are obsoleted. Instead, the following new rc 1195 variables are added to rc.d/ipfw: 1196 1197 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1198 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1199 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1200 1201 The meanings correspond to the relevant IPv4 variables. 1202 120320091125: 1204 8.0-RELEASE. 1205 120620091113: 1207 The default terminal emulation for syscons(4) has been changed 1208 from cons25 to xterm on all platforms except pc98. This means 1209 that the /etc/ttys file needs to be updated to ensure correct 1210 operation of applications on the console. 1211 1212 The terminal emulation style can be toggled per window by using 1213 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1214 options can be used to change the compile-time default back to 1215 cons25. 1216 1217 To prevent graphical artifacts, make sure the TERM environment 1218 variable is set to match the terminal emulation that is being 1219 performed by syscons(4). 1220 122120091109: 1222 The layout of the structure ieee80211req_scan_result has changed. 1223 Applications that require wireless scan results (e.g. ifconfig(8)) 1224 from net80211 need to be recompiled. 1225 1226 Applications such as wpa_supplicant(8) may require a full world 1227 build without using NO_CLEAN in order to get synchronized with the 1228 new structure. 1229 123020091025: 1231 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1232 There's one kernel module for each firmware. Adding "device iwnfw" 1233 to the kernel configuration file means including all three firmware 1234 images inside the kernel. If you want to include just the one for 1235 your wireless card, use the devices iwn4965fw, iwn5000fw or 1236 iwn5150fw. 1237 123820090926: 1239 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1240 into rc.d/netif. The changes are the following: 1241 1242 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1243 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1244 Note that both variables need the "inet6" keyword at the head. 1245 1246 Do not set $ipv6_network_interfaces manually if you do not 1247 understand what you are doing. It is not needed in most cases. 1248 1249 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1250 they are obsolete. 1251 1252 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1253 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1254 1255 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1256 all configured interfaces have "inet6 accept_rtadv" in the 1257 $ifconfig_IF_ipv6. These are for backward compatibility. 1258 1259 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1260 functionality of interfaces with no corresponding 1261 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1262 and the default address selection policy of ip6addrctl(8) 1263 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1264 Note that if you want to configure IPv6 functionality on the 1265 disabled interfaces after boot, first you need to clear the flag by 1266 using ifconfig(8) like: 1267 1268 ifconfig em0 inet6 -ifdisabled 1269 1270 If YES, the default address selection policy is set as 1271 IPv6-preferred. 1272 1273 The default value of $ipv6_prefer is NO. 1274 1275 4. If your system need to receive Router Advertisement messages, 1276 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1277 scripts automatically invoke rtsol(8) when the interface becomes 1278 UP. The Router Advertisement messages are used for SLAAC 1279 (State-Less Address AutoConfiguration). 1280 128120090922: 1282 802.11s D3.03 support was committed. This is incompatible with the 1283 previous code, which was based on D3.0. 1284 128520090912: 1286 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1287 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1288 control whether accepting Router Advertisement messages or not. 1289 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1290 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1291 The ifconfig(8) utility now supports these flags. 1292 129320090910: 1294 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1295 mount(8) and -a option for df(1) to see them. 1296 129720090825: 1298 The old tunable hw.bus.devctl_disable has been superseded by 1299 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1300 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1301 is 1000. 1302 130320090813: 1304 Remove the option STOP_NMI. The default action is now to use NMI only 1305 for KDB via the newly introduced function stop_cpus_hard() and 1306 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1307 130820090803: 1309 The stable/8 branch created in subversion. This corresponds to the 1310 RELENG_8 branch in CVS. 1311 131220090719: 1313 Bump the shared library version numbers for all libraries that do not 1314 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1315 __FreeBSD_version to 800105. 1316 131720090714: 1318 Due to changes in the implementation of virtual network stack support, 1319 all network-related kernel modules must be recompiled. As this change 1320 breaks the ABI, bump __FreeBSD_version to 800104. 1321 132220090713: 1323 The TOE interface to the TCP syncache has been modified to remove 1324 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1325 The cxgb driver is the only TOE consumer affected by this change, and 1326 needs to be recompiled along with the kernel. As this change breaks 1327 the ABI, bump __FreeBSD_version to 800103. 1328 132920090712: 1330 Padding has been added to struct tcpcb, sackhint and tcpstat in 1331 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1332 maintaining the ABI. However, this change breaks the ABI, so bump 1333 __FreeBSD_version to 800102. User space tools that rely on the size of 1334 any of these structs (e.g. sockstat) need to be recompiled. 1335 133620090630: 1337 The NFS_LEGACYRPC option has been removed along with the old kernel 1338 RPC implementation that this option selected. Kernel configurations 1339 may need to be adjusted. 1340 134120090629: 1342 The network interface device nodes at /dev/net/<interface> have been 1343 removed. All ioctl operations can be performed the normal way using 1344 routing sockets. The kqueue functionality can generally be replaced 1345 with routing sockets. 1346 134720090628: 1348 The documentation from the FreeBSD Documentation Project (Handbook, 1349 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1350 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1351 135220090624: 1353 The ABI of various structures related to the SYSV IPC API have been 1354 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1355 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1356 800100. 1357 135820090622: 1359 Layout of struct vnet has changed as routing related variables were 1360 moved to their own Vimage module. Modules need to be recompiled. Bump 1361 __FreeBSD_version to 800099. 1362 136320090619: 1364 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1365 respectively. As long as no more than 16 groups per process are used, 1366 no changes should be visible. When more than 16 groups are used, old 1367 binaries may fail if they call getgroups() or getgrouplist() with 1368 statically sized storage. Recompiling will work around this, but 1369 applications should be modified to use dynamically allocated storage 1370 for group arrays as POSIX.1-2008 does not cap an implementation's 1371 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1372 1373 NFS and portalfs mounts may also be affected as the list of groups is 1374 truncated to 16. Users of NFS who use more than 16 groups, should 1375 take care that negative group permissions are not used on the exported 1376 file systems as they will not be reliable unless a GSSAPI based 1377 authentication method is used. 1378 137920090616: 1380 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1381 option compiles in the support for adaptive spinning for lockmgrs 1382 which want to enable it. The lockinit() function now accepts the flag 1383 LK_ADAPTIVE in order to make the lock object subject to adaptive 1384 spinning when both held in write and read mode. 1385 138620090613: 1387 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1388 changed. User applications that use this ioctl need to be rebuilt. 1389 139020090611: 1391 The layout of struct thread has changed. Kernel and modules need to 1392 be rebuilt. 1393 139420090608: 1395 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1396 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1397 139820090602: 1399 window(1) has been removed from the base system. It can now be 1400 installed from ports. The port is called misc/window. 1401 140220090601: 1403 The way we are storing and accessing `routing table' entries has 1404 changed. Programs reading the FIB, like netstat, need to be 1405 re-compiled. 1406 140720090601: 1408 A new netisr implementation has been added for FreeBSD 8. Network 1409 file system modules, such as igmp, ipdivert, and others, should be 1410 rebuilt. 1411 Bump __FreeBSD_version to 800096. 1412 141320090530: 1414 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1415 more valid. 1416 141720090530: 1418 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1419 Bump __FreeBSD_version to 800094. 1420 142120090529: 1422 Add mnt_xflag field to 'struct mount'. File system modules need to be 1423 rebuilt. 1424 Bump __FreeBSD_version to 800093. 1425 142620090528: 1427 The compiling option ADAPTIVE_SX has been retired while it has been 1428 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1429 The KPI for sx_init_flags() changes as accepting flags: 1430 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1431 been introduced in order to handle the reversed logic. 1432 Bump __FreeBSD_version to 800092. 1433 143420090527: 1435 Add support for hierarchical jails. Remove global securelevel. 1436 Bump __FreeBSD_version to 800091. 1437 143820090523: 1439 The layout of struct vnet_net has changed, therefore modules 1440 need to be rebuilt. 1441 Bump __FreeBSD_version to 800090. 1442 144320090523: 1444 The newly imported zic(8) produces a new format in the output. Please 1445 run tzsetup(8) to install the newly created data to /etc/localtime. 1446 144720090520: 1448 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1449 hw.usb.* and is now consistent again with previous releases. 1450 145120090520: 1452 802.11 monitor mode support was revised and driver api's were changed. 1453 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1454 of DLT_IEEE802_11. No user-visible data structures were changed but 1455 applications that use DLT_IEEE802_11 may require changes. 1456 Bump __FreeBSD_version to 800088. 1457 145820090430: 1459 The layout of the following structs has changed: sysctl_oid, 1460 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1461 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1462 panics may be experienced. World rebuild is required for 1463 correctly checking networking state from userland. 1464 Bump __FreeBSD_version to 800085. 1465 146620090429: 1467 MLDv2 and Source-Specific Multicast (SSM) have been merged 1468 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1469 The implementation of SSM within FreeBSD's IPv6 stack closely 1470 follows the IPv4 implementation. 1471 1472 For kernel developers: 1473 1474 * The most important changes are that the ip6_output() and 1475 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1476 and this lock has been downgraded to a non-recursive mutex. 1477 1478 * As with the changes to the IPv4 stack to support SSM, filtering 1479 of inbound multicast traffic must now be performed by transport 1480 protocols within the IPv6 stack. This does not apply to TCP and 1481 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1482 1483 * The KPIs used by IPv6 multicast are similar to those used by 1484 the IPv4 stack, with the following differences: 1485 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1486 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1487 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1488 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1489 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1490 for MLDv1 have an additional 'timer' argument which is used to 1491 jitter the initial membership report for the solicited-node 1492 multicast membership on-link. 1493 * This is not strictly needed for MLDv2, which already jitters 1494 its report transmissions. However, the 'timer' argument is 1495 preserved in case MLDv1 is active on the interface. 1496 1497 * The KAME linked-list based IPv6 membership implementation has 1498 been refactored to use a vector similar to that used by the IPv4 1499 stack. 1500 Code which maintains a list of its own multicast memberships 1501 internally, e.g. carp, has been updated to reflect the new 1502 semantics. 1503 1504 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1505 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1506 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1507 implementation constraint which needs to be addressed in HEAD. 1508 1509 For application developers: 1510 1511 * The changes are broadly similar to those made for the IPv4 1512 stack. 1513 1514 * The use of IPv4 and IPv6 multicast socket options on the same 1515 socket, using mapped addresses, HAS NOT been tested or supported. 1516 1517 * There are a number of issues with the implementation of various 1518 IPv6 multicast APIs which need to be resolved in the API surface 1519 before the implementation is fully compatible with KAME userland 1520 use, and these are mostly to do with interface index treatment. 1521 1522 * The literature available discusses the use of either the delta / ASM 1523 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1524 using setsourcefilter(3)/getsourcefilter(3). For more information 1525 please refer to RFC 3768, 'Socket Interface Extensions for 1526 Multicast Source Filters'. 1527 1528 * Applications which use the published RFC 3678 APIs should be fine. 1529 1530 For systems administrators: 1531 1532 * The mtest(8) utility has been refactored to support IPv6, in 1533 addition to IPv4. Interface addresses are no longer accepted 1534 as arguments, their names must be used instead. The utility 1535 will map the interface name to its first IPv4 address as 1536 returned by getifaddrs(3). 1537 1538 * The ifmcstat(8) utility has also been updated to print the MLDv2 1539 endpoint state and source filter lists via sysctl(3). 1540 1541 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1542 loopback of IPv6 multicast datagrams by default; it defaults to 1 1543 to preserve the existing behaviour. Disabling multicast loopback is 1544 recommended for optimal system performance. 1545 1546 * The IPv6 MROUTING code has been changed to examine this sysctl 1547 instead of attempting to perform a group lookup before looping 1548 back forwarded datagrams. 1549 1550 Bump __FreeBSD_version to 800084. 1551 155220090422: 1553 Implement low-level Bluetooth HCI API. 1554 Bump __FreeBSD_version to 800083. 1555 155620090419: 1557 The layout of struct malloc_type, used by modules to register new 1558 memory allocation types, has changed. Most modules will need to 1559 be rebuilt or panics may be experienced. 1560 Bump __FreeBSD_version to 800081. 1561 156220090415: 1563 Anticipate overflowing inp_flags - add inp_flags2. 1564 This changes most offsets in inpcb, so checking v4 connection 1565 state will require a world rebuild. 1566 Bump __FreeBSD_version to 800080. 1567 156820090415: 1569 Add an llentry to struct route and struct route_in6. Modules 1570 embedding a struct route will need to be recompiled. 1571 Bump __FreeBSD_version to 800079. 1572 157320090414: 1574 The size of rt_metrics_lite and by extension rtentry has changed. 1575 Networking administration apps will need to be recompiled. 1576 The route command now supports show as an alias for get, weighting 1577 of routes, sticky and nostick flags to alter the behavior of stateful 1578 load balancing. 1579 Bump __FreeBSD_version to 800078. 1580 158120090408: 1582 Do not use Giant for kbdmux(4) locking. This is wrong and 1583 apparently causing more problems than it solves. This will 1584 re-open the issue where interrupt handlers may race with 1585 kbdmux(4) in polling mode. Typical symptoms include (but 1586 not limited to) duplicated and/or missing characters when 1587 low level console functions (such as gets) are used while 1588 interrupts are enabled (for example geli password prompt, 1589 mountroot prompt etc.). Disabling kbdmux(4) may help. 1590 159120090407: 1592 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1593 kernel modules referencing any of the above need to be recompiled. 1594 Bump __FreeBSD_version to 800075. 1595 159620090320: 1597 GEOM_PART has become the default partition slicer for storage devices, 1598 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1599 introduces some changes: 1600 1601 MSDOS/EBR: the devices created from MSDOS extended partition entries 1602 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1603 to devices with offset-based names. fstabs may need to be modified. 1604 1605 BSD: the "geometry does not match label" warning is harmless in most 1606 cases but it points to problems in file system misalignment with 1607 disk geometry. The "c" partition is now implicit, covers the whole 1608 top-level drive and cannot be (mis)used by users. 1609 1610 General: Kernel dumps are now not allowed to be written to devices 1611 whose partition types indicate they are meant to be used for file 1612 systems (or, in case of MSDOS partitions, as something else than 1613 the "386BSD" type). 1614 1615 Most of these changes date approximately from 200812. 1616 161720090319: 1618 The uscanner(4) driver has been removed from the kernel. This follows 1619 Linux removing theirs in 2.6 and making libusb the default interface 1620 (supported by sane). 1621 162220090319: 1623 The multicast forwarding code has been cleaned up. netstat(1) 1624 only relies on KVM now for printing bandwidth upcall meters. 1625 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1626 ip6_mroute_mod respectively. The config(5) options for statically 1627 compiling this code remain the same, i.e. 'options MROUTING'. 1628 162920090315: 1630 Support for the IFF_NEEDSGIANT network interface flag has been 1631 removed, which means that non-MPSAFE network device drivers are no 1632 longer supported. In particular, if_ar, if_sr, and network device 1633 drivers from the old (legacy) USB stack can no longer be built or 1634 used. 1635 163620090313: 1637 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1638 a bunch of new language catalog files have also been added. 1639 This means that some common libc messages are now localized and 1640 they depend on the LC_MESSAGES environmental variable. 1641 164220090313: 1643 The k8temp(4) driver has been renamed to amdtemp(4) since 1644 support for Family 10 and Family 11 CPU families was added. 1645 164620090309: 1647 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1648 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1649 1650 For kernel developers, the most important changes are that the 1651 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1652 and this lock has been downgraded to a non-recursive mutex. 1653 1654 Transport protocols (UDP, Raw IP) are now responsible for filtering 1655 inbound multicast traffic according to group membership and source 1656 filters. The imo_multicast_filter() KPI exists for this purpose. 1657 Transports which do not use multicast (SCTP, TCP) already reject 1658 multicast by default. Forwarding and receive performance may improve 1659 as a mutex acquisition is no longer needed in the ip_input() 1660 low-level input path. in_addmulti() and in_delmulti() are shimmed 1661 to new KPIs which exist to support SSM in-kernel. 1662 1663 For application developers, it is recommended that loopback of 1664 multicast datagrams be disabled for best performance, as this 1665 will still cause the lock to be taken for each looped-back 1666 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1667 be tuned to 0 to disable loopback by default; it defaults to 1 1668 to preserve the existing behaviour. 1669 1670 For systems administrators, to obtain best performance with 1671 multicast reception and multiple groups, it is always recommended 1672 that a card with a suitably precise hash filter is used. Hash 1673 collisions will still result in the lock being taken within the 1674 transport protocol input path to check group membership. 1675 1676 If deploying FreeBSD in an environment with IGMP snooping switches, 1677 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1678 enabled; this forces 224.0.0.0/24 group membership to be announced 1679 via IGMP. 1680 1681 The size of 'struct igmpstat' has changed; netstat needs to be 1682 recompiled to reflect this. 1683 Bump __FreeBSD_version to 800070. 1684 168520090309: 1686 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1687 updated to use it. This requires a buildworld/installworld in order to 1688 update the library and dependencies (usbconfig, etc). Its advisable to 1689 rebuild all ports which uses libusb. More specific directions are given 1690 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1691 libusb are no longer required and can be removed. 1692 169320090302: 1694 A workaround is committed to allow the creation of System V shared 1695 memory segment of size > 2 GB on the 64-bit architectures. 1696 Due to a limitation of the existing ABI, the shm_segsz member 1697 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1698 wrong for large segments. Note that limits must be explicitly 1699 raised to allow such segments to be created. 1700 170120090301: 1702 The layout of struct ifnet has changed, requiring a rebuild of all 1703 network device driver modules. 1704 170520090227: 1706 The /dev handling for the new USB stack has changed, a 1707 buildworld/installworld is required for libusb20. 1708 170920090223: 1710 The new USB2 stack has now been permanently moved in and all kernel and 1711 module names reverted to their previous values (eg, usb, ehci, ohci, 1712 ums, ...). The old usb stack can be compiled in by prefixing the name 1713 with the letter 'o', the old usb modules have been removed. 1714 Updating entry 20090216 for xorg and 20090215 for libmap may still 1715 apply. 1716 171720090217: 1718 The rc.conf(5) option if_up_delay has been renamed to 1719 defaultroute_delay to better reflect its purpose. If you have 1720 customized this setting in /etc/rc.conf you need to update it to 1721 use the new name. 1722 172320090216: 1724 xorg 7.4 wants to configure its input devices via hald which does not 1725 yet work with USB2. If the keyboard/mouse does not work in xorg then 1726 add 1727 Option "AllowEmptyInput" "off" 1728 to your ServerLayout section. This will cause X to use the configured 1729 kbd and mouse sections from your xorg.conf. 1730 173120090215: 1732 The GENERIC kernels for all architectures now default to the new USB2 1733 stack. No kernel config options or code have been removed so if a 1734 problem arises please report it and optionally revert to the old USB 1735 stack. If you are loading USB kernel modules or have a custom kernel 1736 that includes GENERIC then ensure that usb names are also changed over, 1737 eg uftdi -> usb2_serial_ftdi. 1738 1739 Older programs linked against the ports libusb 0.1 need to be 1740 redirected to the new stack's libusb20. /etc/libmap.conf can 1741 be used for this: 1742 # Map old usb library to new one for usb2 stack 1743 libusb-0.1.so.8 libusb20.so.1 1744 174520090209: 1746 All USB ethernet devices now attach as interfaces under the name ueN 1747 (eg. ue0). This is to provide a predictable name as vendors often 1748 change usb chipsets in a product without notice. 1749 175020090203: 1751 The ichsmb(4) driver has been changed to require SMBus slave 1752 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1753 All of the other SMBus controller drivers require left-justified 1754 slave addresses, so this change makes all the drivers provide the 1755 same interface. 1756 175720090201: 1758 INET6 statistics (struct ip6stat) was updated. 1759 netstat(1) needs to be recompiled. 1760 176120090119: 1762 NTFS has been removed from GENERIC kernel on amd64 to match 1763 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1764 will load ntfs.ko module automatically when NTFS support is 1765 actually needed, unless ntfs.ko is not installed or security 1766 level prohibits loading kernel modules. If either is the case, 1767 "options NTFS" has to be added into kernel config. 1768 176920090115: 1770 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1771 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1772 800061. User space tools that rely on the size of struct tcpcb in 1773 tcp_var.h (e.g. sockstat) need to be recompiled. 1774 177520081225: 1776 ng_tty(4) module updated to match the new TTY subsystem. 1777 Due to API change, user-level applications must be updated. 1778 New API support added to mpd5 CVS and expected to be present 1779 in next mpd5.3 release. 1780 178120081219: 1782 With __FreeBSD_version 800060 the makefs tool is part of 1783 the base system (it was a port). 1784 178520081216: 1786 The afdata and ifnet locks have been changed from mutexes to 1787 rwlocks, network modules will need to be re-compiled. 1788 178920081214: 1790 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1791 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1792 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1793 architecture and 40 bytes on 64-bit architecture. The userland 1794 applications "arp" and "ndp" have been updated accordingly. 1795 The output from "netstat -r" shows only routing entries and 1796 none of the L2 information. 1797 179820081130: 1799 __FreeBSD_version 800057 marks the switchover from the 1800 binary ath hal to source code. Users must add the line: 1801 1802 options AH_SUPPORT_AR5416 1803 1804 to their kernel config files when specifying: 1805 1806 device ath_hal 1807 1808 The ath_hal module no longer exists; the code is now compiled 1809 together with the driver in the ath module. It is now 1810 possible to tailor chip support (i.e. reduce the set of chips 1811 and thereby the code size); consult ath_hal(4) for details. 1812 181320081121: 1814 __FreeBSD_version 800054 adds memory barriers to 1815 <machine/atomic.h>, new interfaces to ifnet to facilitate 1816 multiple hardware transmit queues for cards that support 1817 them, and a lock-less ring-buffer implementation to 1818 enable drivers to more efficiently manage queueing of 1819 packets. 1820 182120081117: 1822 A new version of ZFS (version 13) has been merged to -HEAD. 1823 This version has zpool attribute "listsnapshots" off by 1824 default, which means "zfs list" does not show snapshots, 1825 and is the same as Solaris behavior. 1826 182720081028: 1828 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1829 183020081009: 1831 The uhci, ohci, ehci and slhci USB Host controller drivers have 1832 been put into separate modules. If you load the usb module 1833 separately through loader.conf you will need to load the 1834 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1835 controller add the following to loader.conf: 1836 1837 uhci_load="YES" 1838 ehci_load="YES" 1839 184020081009: 1841 The ABI used by the PMC toolset has changed. Please keep 1842 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1843 sync. 1844 184520081009: 1846 atapci kernel module now includes only generic PCI ATA 1847 driver. AHCI driver moved to ataahci kernel module. 1848 All vendor-specific code moved into separate kernel modules: 1849 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1850 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1851 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1852 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1853 185420080820: 1855 The TTY subsystem of the kernel has been replaced by a new 1856 implementation, which provides better scalability and an 1857 improved driver model. Most common drivers have been migrated to 1858 the new TTY subsystem, while others have not. The following 1859 drivers have not yet been ported to the new TTY layer: 1860 1861 PCI/ISA: 1862 cy, digi, rc, rp, sio 1863 1864 USB: 1865 ubser, ucycom 1866 1867 Line disciplines: 1868 ng_h4, ng_tty, ppp, sl, snp 1869 1870 Adding these drivers to your kernel configuration file shall 1871 cause compilation to fail. 1872 187320080818: 1874 ntpd has been upgraded to 4.2.4p5. 1875 187620080801: 1877 OpenSSH has been upgraded to 5.1p1. 1878 1879 For many years, FreeBSD's version of OpenSSH preferred DSA 1880 over RSA for host and user authentication keys. With this 1881 upgrade, we've switched to the vendor's default of RSA over 1882 DSA. This may cause upgraded clients to warn about unknown 1883 host keys even for previously known hosts. Users should 1884 follow the usual procedure for verifying host keys before 1885 accepting the RSA key. 1886 1887 This can be circumvented by setting the "HostKeyAlgorithms" 1888 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1889 command line. 1890 1891 Please note that the sequence of keys offered for 1892 authentication has been changed as well. You may want to 1893 specify IdentityFile in a different order to revert this 1894 behavior. 1895 189620080713: 1897 The sio(4) driver has been removed from the i386 and amd64 1898 kernel configuration files. This means uart(4) is now the 1899 default serial port driver on those platforms as well. 1900 1901 To prevent collisions with the sio(4) driver, the uart(4) driver 1902 uses different names for its device nodes. This means the 1903 onboard serial port will now most likely be called "ttyu0" 1904 instead of "ttyd0". You may need to reconfigure applications to 1905 use the new device names. 1906 1907 When using the serial port as a boot console, be sure to update 1908 /boot/device.hints and /etc/ttys before booting the new kernel. 1909 If you forget to do so, you can still manually specify the hints 1910 at the loader prompt: 1911 1912 set hint.uart.0.at="isa" 1913 set hint.uart.0.port="0x3F8" 1914 set hint.uart.0.flags="0x10" 1915 set hint.uart.0.irq="4" 1916 boot -s 1917 191820080609: 1919 The gpt(8) utility has been removed. Use gpart(8) to partition 1920 disks instead. 1921 192220080603: 1923 The version that Linuxulator emulates was changed from 2.4.2 1924 to 2.6.16. If you experience any problems with Linux binaries 1925 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1926 if it fixes the problem contact emulation mailing list. 1927 192820080525: 1929 ISDN4BSD (I4B) was removed from the src tree. You may need to 1930 update a your kernel configuration and remove relevant entries. 1931 193220080509: 1933 I have checked in code to support multiple routing tables. 1934 See the man pages setfib(1) and setfib(2). 1935 This is a hopefully backwards compatible version, 1936 but to make use of it you need to compile your kernel 1937 with options ROUTETABLES=2 (or more up to 16). 1938 193920080420: 1940 The 802.11 wireless support was redone to enable multi-bss 1941 operation on devices that are capable. The underlying device 1942 is no longer used directly but instead wlanX devices are 1943 cloned with ifconfig. This requires changes to rc.conf files. 1944 For example, change: 1945 ifconfig_ath0="WPA DHCP" 1946 to 1947 wlans_ath0=wlan0 1948 ifconfig_wlan0="WPA DHCP" 1949 see rc.conf(5) for more details. In addition, mergemaster of 1950 /etc/rc.d is highly recommended. Simultaneous update of userland 1951 and kernel wouldn't hurt either. 1952 1953 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1954 modules were merged into the base wlan module. All references 1955 to these modules (e.g. in kernel config files) must be removed. 1956 195720080408: 1958 psm(4) has gained write(2) support in native operation level. 1959 Arbitrary commands can be written to /dev/psm%d and status can 1960 be read back from it. Therefore, an application is responsible 1961 for status validation and error recovery. It is a no-op in 1962 other operation levels. 1963 196420080312: 1965 Support for KSE threading has been removed from the kernel. To 1966 run legacy applications linked against KSE libmap.conf may 1967 be used. The following libmap.conf may be used to ensure 1968 compatibility with any prior release: 1969 1970 libpthread.so.1 libthr.so.1 1971 libpthread.so.2 libthr.so.2 1972 libkse.so.3 libthr.so.3 1973 197420080301: 1975 The layout of struct vmspace has changed. This affects libkvm 1976 and any executables that link against libkvm and use the 1977 kvm_getprocs() function. In particular, but not exclusively, 1978 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1979 The effects are minimal, but it's advisable to upgrade world 1980 nonetheless. 1981 198220080229: 1983 The latest em driver no longer has support in it for the 1984 82575 adapter, this is now moved to the igb driver. The 1985 split was done to make new features that are incompatible 1986 with older hardware easier to do. 1987 198820080220: 1989 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1990 likewise the kernel option is now GEOM_LINUX_LVM. 1991 199220080211: 1993 The default NFS mount mode has changed from UDP to TCP for 1994 increased reliability. If you rely on (insecurely) NFS 1995 mounting across a firewall you may need to update your 1996 firewall rules. 1997 199820080208: 1999 Belatedly note the addition of m_collapse for compacting 2000 mbuf chains. 2001 200220080126: 2003 The fts(3) structures have been changed to use adequate 2004 integer types for their members and so to be able to cope 2005 with huge file trees. The old fts(3) ABI is preserved 2006 through symbol versioning in libc, so third-party binaries 2007 using fts(3) should still work, although they will not take 2008 advantage of the extended types. At the same time, some 2009 third-party software might fail to build after this change 2010 due to unportable assumptions made in its source code about 2011 fts(3) structure members. Such software should be fixed 2012 by its vendor or, in the worst case, in the ports tree. 2013 FreeBSD_version 800015 marks this change for the unlikely 2014 case that a portable fix is impossible. 2015 201620080123: 2017 To upgrade to -current after this date, you must be running 2018 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2019 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2020 202120071128: 2022 The ADAPTIVE_GIANT kernel option has been retired because its 2023 functionality is the default now. 2024 202520071118: 2026 The AT keyboard emulation of sunkbd(4) has been turned on 2027 by default. In order to make the special symbols of the Sun 2028 keyboards driven by sunkbd(4) work under X these now have 2029 to be configured the same way as Sun USB keyboards driven 2030 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2031 2032 Option "XkbLayout" "us" 2033 Option "XkbRules" "xorg" 2034 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2035 203620071024: 2037 It has been decided that it is desirable to provide ABI 2038 backwards compatibility to the FreeBSD 4/5/6 versions of the 2039 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2040 broken with the introduction of PCI domain support (see the 2041 20070930 entry). Unfortunately, this required the ABI of 2042 PCIOCGETCONF to be broken again in order to be able to 2043 provide backwards compatibility to the old version of that 2044 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2045 again. As for prominent ports this affects neither pciutils 2046 nor xorg-server this time, the hal port needs to be rebuilt 2047 however. 2048 204920071020: 2050 The misnamed kthread_create() and friends have been renamed 2051 to kproc_create() etc. Many of the callers already 2052 used kproc_start().. 2053 I will return kthread_create() and friends in a while 2054 with implementations that actually create threads, not procs. 2055 Renaming corresponds with version 800002. 2056 205720071010: 2058 RELENG_7 branched. 2059 2060COMMON ITEMS: 2061 2062 General Notes 2063 ------------- 2064 Avoid using make -j when upgrading. While generally safe, there are 2065 sometimes problems using -j to upgrade. If your upgrade fails with 2066 -j, please try again without -j. From time to time in the past there 2067 have been problems using -j with buildworld and/or installworld. This 2068 is especially true when upgrading between "distant" versions (eg one 2069 that cross a major release boundary or several minor releases, or when 2070 several months have passed on the -current branch). 2071 2072 Sometimes, obscure build problems are the result of environment 2073 poisoning. This can happen because the make utility reads its 2074 environment when searching for values for global variables. To run 2075 your build attempts in an "environmental clean room", prefix all make 2076 commands with 'env -i '. See the env(1) manual page for more details. 2077 2078 When upgrading from one major version to another it is generally best 2079 to upgrade to the latest code in the currently installed branch first, 2080 then do an upgrade to the new branch. This is the best-tested upgrade 2081 path, and has the highest probability of being successful. Please try 2082 this approach before reporting problems with a major version upgrade. 2083 2084 When upgrading a live system, having a root shell around before 2085 installing anything can help undo problems. Not having a root shell 2086 around can lead to problems if pam has changed too much from your 2087 starting point to allow continued authentication after the upgrade. 2088 2089 ZFS notes 2090 --------- 2091 When upgrading the boot ZFS pool to a new version, always follow 2092 these two steps: 2093 2094 1.) recompile and reinstall the ZFS boot loader and boot block 2095 (this is part of "make buildworld" and "make installworld") 2096 2097 2.) update the ZFS boot block on your boot drive 2098 2099 The following example updates the ZFS boot block on the first 2100 partition (freebsd-boot) of a GPT partitioned drive ad0: 2101 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2102 2103 Non-boot pools do not need these updates. 2104 2105 To build a kernel 2106 ----------------- 2107 If you are updating from a prior version of FreeBSD (even one just 2108 a few days old), you should follow this procedure. It is the most 2109 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2110 2111 make kernel-toolchain 2112 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2113 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2114 2115 To test a kernel once 2116 --------------------- 2117 If you just want to boot a kernel once (because you are not sure 2118 if it works, or if you want to boot a known bad kernel to provide 2119 debugging information) run 2120 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2121 nextboot -k testkernel 2122 2123 To just build a kernel when you know that it won't mess you up 2124 -------------------------------------------------------------- 2125 This assumes you are already running a CURRENT system. Replace 2126 ${arch} with the architecture of your machine (e.g. "i386", 2127 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2128 2129 cd src/sys/${arch}/conf 2130 config KERNEL_NAME_HERE 2131 cd ../compile/KERNEL_NAME_HERE 2132 make depend 2133 make 2134 make install 2135 2136 If this fails, go to the "To build a kernel" section. 2137 2138 To rebuild everything and install it on the current system. 2139 ----------------------------------------------------------- 2140 # Note: sometimes if you are running current you gotta do more than 2141 # is listed here if you are upgrading from a really old current. 2142 2143 <make sure you have good level 0 dumps> 2144 make buildworld 2145 make kernel KERNCONF=YOUR_KERNEL_HERE 2146 [1] 2147 <reboot in single user> [3] 2148 mergemaster -p [5] 2149 make installworld 2150 mergemaster -i [4] 2151 make delete-old [6] 2152 <reboot> 2153 2154 To cross-install current onto a separate partition 2155 -------------------------------------------------- 2156 # In this approach we use a separate partition to hold 2157 # current's root, 'usr', and 'var' directories. A partition 2158 # holding "/", "/usr" and "/var" should be about 2GB in 2159 # size. 2160 2161 <make sure you have good level 0 dumps> 2162 <boot into -stable> 2163 make buildworld 2164 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2165 <maybe newfs current's root partition> 2166 <mount current's root partition on directory ${CURRENT_ROOT}> 2167 make installworld DESTDIR=${CURRENT_ROOT} 2168 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2169 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2170 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2171 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2172 <reboot into current> 2173 <do a "native" rebuild/install as described in the previous section> 2174 <maybe install compatibility libraries from ports/misc/compat*> 2175 <reboot> 2176 2177 2178 To upgrade in-place from stable to current 2179 ---------------------------------------------- 2180 <make sure you have good level 0 dumps> 2181 make buildworld [9] 2182 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2183 [1] 2184 <reboot in single user> [3] 2185 mergemaster -p [5] 2186 make installworld 2187 mergemaster -i [4] 2188 make delete-old [6] 2189 <reboot> 2190 2191 Make sure that you've read the UPDATING file to understand the 2192 tweaks to various things you need. At this point in the life 2193 cycle of current, things change often and you are on your own 2194 to cope. The defaults can also change, so please read ALL of 2195 the UPDATING entries. 2196 2197 Also, if you are tracking -current, you must be subscribed to 2198 freebsd-current@freebsd.org. Make sure that before you update 2199 your sources that you have read and understood all the recent 2200 messages there. If in doubt, please track -stable which has 2201 much fewer pitfalls. 2202 2203 [1] If you have third party modules, such as vmware, you 2204 should disable them at this point so they don't crash your 2205 system on reboot. 2206 2207 [3] From the bootblocks, boot -s, and then do 2208 fsck -p 2209 mount -u / 2210 mount -a 2211 cd src 2212 adjkerntz -i # if CMOS is wall time 2213 Also, when doing a major release upgrade, it is required that 2214 you boot into single user mode to do the installworld. 2215 2216 [4] Note: This step is non-optional. Failure to do this step 2217 can result in a significant reduction in the functionality of the 2218 system. Attempting to do it by hand is not recommended and those 2219 that pursue this avenue should read this file carefully, as well 2220 as the archives of freebsd-current and freebsd-hackers mailing lists 2221 for potential gotchas. The -U option is also useful to consider. 2222 See mergemaster(8) for more information. 2223 2224 [5] Usually this step is a noop. However, from time to time 2225 you may need to do this if you get unknown user in the following 2226 step. It never hurts to do it all the time. You may need to 2227 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2228 install) after the buildworld before this step if you last updated 2229 from current before 20130425 or from -stable before 20130430. 2230 2231 [6] This only deletes old files and directories. Old libraries 2232 can be deleted by "make delete-old-libs", but you have to make 2233 sure that no program is using those libraries anymore. 2234 2235 [8] In order to have a kernel that can run the 4.x binaries needed to 2236 do an installworld, you must include the COMPAT_FREEBSD4 option in 2237 your kernel. Failure to do so may leave you with a system that is 2238 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2239 required to run the 5.x binaries on more recent kernels. And so on 2240 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2241 2242 Make sure that you merge any new devices from GENERIC since the 2243 last time you updated your kernel config file. 2244 2245 [9] When checking out sources, you must include the -P flag to have 2246 cvs prune empty directories. 2247 2248 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2249 "?=" instead of the "=" assignment operator, so that buildworld can 2250 override the CPUTYPE if it needs to. 2251 2252 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2253 not on the command line, or in /etc/make.conf. buildworld will 2254 warn if it is improperly defined. 2255FORMAT: 2256 2257This file contains a list, in reverse chronological order, of major 2258breakages in tracking -current. It is not guaranteed to be a complete 2259list of such breakages, and only contains entries since October 10, 2007. 2260If you need to see UPDATING entries from before that date, you will need 2261to fetch an UPDATING file from an older FreeBSD release. 2262 2263Copyright information: 2264 2265Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2266 2267Redistribution, publication, translation and use, with or without 2268modification, in full or in part, in any form or format of this 2269document are permitted without further permission from the author. 2270 2271THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2272IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2273WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2274DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2275INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2276(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2277SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2278HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2279STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2280IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2281POSSIBILITY OF SUCH DAMAGE. 2282 2283Contact Warner Losh if you have any questions about your use of 2284this document. 2285 2286$FreeBSD: stable/10/UPDATING 317434 2017-04-26 02:37:25Z cy $ 2287